FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Macchiavelli, AO AF Macchiavelli, AO TI Ten years of gammasphere physics. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. EM aom@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 37-NUCL BP U254 EP U254 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001293 ER PT J AU Manaa, MR Fried, LE Elstner, M AF Manaa, MR Fried, LE Elstner, M TI Molecular dynamics simulations of the decomposition of energetic materials at extreme conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Energet Mat Ctr, Livermore, CA 94551 USA. Univ Gesamthsch Paderborn, D-4790 Paderborn, Germany. EM manaa1@llnl.gov RI Fried, Laurence/L-8714-2014 OI Fried, Laurence/0000-0002-9437-7700 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 438-PHYS BP U514 EP U514 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002611 ER PT J AU Manns, CR Howard, BH Taylor, CE AF Manns, CR Howard, BH Taylor, CE TI Catalyst development for the reforming of liquid SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Off Sci & Technol, Adv Fuel Syst, Pittsburgh, PA 15236 USA. US DOE, Off Sci & Technol, Adv Separat Sci, NETL, Pittsburgh, PA 15236 USA. EM manns@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 197-FUEL BP U874 EP U874 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804170 ER PT J AU Martin, RL AF Martin, RL TI Natural transition orbitals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM molecule@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 095-COMP BP U746 EP U746 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803426 ER PT J AU Matloka, K Peters, MW Werner, EJ Regalbuto, M Vandegrift, GF Scott, MJ AF Matloka, K Peters, MW Werner, EJ Regalbuto, M Vandegrift, GF Scott, MJ TI Actinide/lanthanide extraction properties of a tris-CMPO ligand system SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Florida, Dept Chem, Gainesville, FL 32611 USA. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 230-INOR BP U44 EP U44 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000227 ER PT J AU Mattsson, AE Armiento, R AF Mattsson, AE Armiento, R TI Subsystem functionals in density functional theory SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Royal Inst Technol, Stockholm Ctr Phys Astron & Biotechnol, Dept Phys, Stockholm, Sweden. Sandia Natl Labs, Surface & Interface Sci Dept, Albuquerque, NM 87185 USA. EM aematts@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 308 BP U780 EP U780 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803637 ER PT J AU Maxwell, R Chinn, S Balazs, B Gee, R AF Maxwell, R Chinn, S Balazs, B Gee, R TI Comparison of NMR measurements of residual dipolar couplings in aged silica-PDMS composite materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA. EM maxwell7@llnl.gov RI Chinn, Sarah/E-1195-2011 NR 0 TC 1 Z9 1 U1 0 U2 0 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 PY 2003 VL 225 MA 551-POLY BP U629 EP U629 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003248 ER PT J AU Maziarz, EP Liu, XM Grobe, GL Baker, GA Bonafini, J AF Maziarz, EP Liu, XM Grobe, GL Baker, GA Bonafini, J TI ESI and MALDI-TOF MS analysis of implantable device polymers and their interactions with proteins. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Bausch & Lomb Inc, Rochester, NY 14603 USA. Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. EM pmaziarz@rochester.rr.com NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 80-PMSE BP U672 EP U672 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003499 ER PT J AU McCaughey, BF Costello, C Wang, DH Hampsey, JE Li, CJ Brinker, CJ Lu, YF AF McCaughey, BF Costello, C Wang, DH Hampsey, JE Li, CJ Brinker, CJ Lu, YF TI Self-assembly of mesostructured conjugated poly(2,5-thienylene ethynylene)/silica nanocomposites. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Tulane Univ, Dept Chem Engn, Lindy Boggs Ctr 300, New Orleans, LA 70118 USA. Tulane Univ, Dept Chem, New Orleans, LA 70118 USA. Sandia Natl Labs, Ctr MicroEngineered Mat, Livermore, CA 94550 USA. Univ New Mexico, Albuquerque, NM 87131 USA. EM bmccaug@tulane.edu RI Wang, Donghai/L-1150-2013 OI Wang, Donghai/0000-0001-7261-8510 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 58-PMSE BP U669 EP U669 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003477 ER PT J AU McCleskey, TM Keizer, TS Sauer, NN AF McCleskey, TM Keizer, TS Sauer, NN TI Beryllium binding utilizing carboxylic acid ligands. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, C SIC, Los Alamos, NM 87544 USA. EM tmark@lanl.gov; tkeizer@lanl.gov RI McCleskey, Thomas/J-4772-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 898-INOR BP U165 EP U165 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000892 ER PT J AU McIlroy, A Qi, F Cool, TA Westmoreland, PR AF McIlroy, A Qi, F Cool, TA Westmoreland, PR TI Vacuum ultraviolet photoionization probing of flame chemistry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Sandia Natl Labs, Combust Chem Dept, Livermore, CA 94551 USA. Univ Massachusetts, Dept Chem Engn, Amherst, MA 01003 USA. Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA. EM amcilr@sandia.gov 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 PY 2003 VL 225 MA 497-PHYS BP U523 EP U523 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002668 ER PT J AU McIlvried, HG Ramezan, M Bose, AC AF McIlvried, HG Ramezan, M Bose, AC TI CO2 remediation via O-2/CO2 combustion utilizing an O-2-permeable membrane. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 SAIC, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. US DOE, Natl Energy Technnol Lab, Washington, DC 20585 USA. EM Howard.McIlvried@sa.netl.doe.gov; Massood.Ramezan@sa.netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 185-FUEL BP U872 EP U872 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804158 ER PT J AU McLain, SE Turner, JFC Benmore, CJ Siewenie, JE AF McLain, SE Turner, JFC Benmore, CJ Siewenie, JE TI Structural studies of liquid and supercritical boron trifluoride. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Univ Tennessee, Neutron Sci Consortium, Knoxville, TN 37996 USA. Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. EM mclain@novell.chem.utk.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 584-INOR BP U100 EP U100 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000579 ER PT J AU McLain, SE Benmore, CJ Turner, JFC Molaison, JJ AF McLain, SE Benmore, CJ Turner, JFC Molaison, JJ TI Multisite hydrogen bonding in liquid fluorosulfonic acid. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. Univ Tennessee, Neutron Sci Consortium, Knoxville, TN 37996 USA. EM mclain@novell.chem.utk.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 509-INOR BP U88 EP U88 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000506 ER PT J AU McMahan, MA Ahle, LE Becker, JA Bernstein, LA Cerny, J Moltz, DM Moody, KJ Morse, E O'Neil, JP Powell, J Roberts, K Stoyer, MA AF McMahan, MA Ahle, LE Becker, JA Bernstein, LA Cerny, J Moltz, DM Moody, KJ Morse, E O'Neil, JP Powell, J Roberts, K Stoyer, MA TI Measurement of Zr-89(n,2n)Zr-88 and 89Zr(n,np) Y-88 cross sections. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. Lawrence Livermore Natl Lab, Nucl & Analyt Chem Div, Livermore, CA USA. Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Funct Imaging, Biomed Isotope Facil, Berkeley, CA 94720 USA. EM p_mcmahan@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 142-NUCL BP U271 EP U272 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001398 ER PT J AU McNamara, BK AF McNamara, BK TI Why do UO2 secondary phases and spent nuclear fuel float? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Lab, Environm Technol Div, Richland, WA USA. EM bruce.mcnamara@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 253-COLL BP U646 EP U647 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803003 ER PT J AU Mecklenburg, SL Wong, AS Thronas, DL AF Mecklenburg, SL Wong, AS Thronas, DL TI Counting techniques applied to fabrication of non-destructive assay standards for the National TRU Waste Program. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM meck@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 45-NUCL BP U255 EP U255 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001301 ER PT J AU Meyer, RL Russell, DD Scaggs, J Knowlton, W Hill, M Bauer, W AF Meyer, RL Russell, DD Scaggs, J Knowlton, W Hill, M Bauer, W TI Design and development of heavy metal selective chem-FET sensors using conductive chelating polymers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Boise State Univ, Dept Chem, Boise, ID 83712 USA. Boise State Univ, Dept Elect Engn, Boise, ID 83712 USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID USA. RI Bauer, William/B-8357-2016 OI Bauer, William/0000-0002-7190-9700 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 PY 2003 VL 225 MA 291-PMSE BP U704 EP U705 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003710 ER PT J AU Miller, JL Krisch, MJ Butler, LJ Shu, JN AF Miller, JL Krisch, MJ Butler, LJ Shu, JN TI Dissociation channels of the 1-buten-2-yl radical: An experimental and ab initio study. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Chicago, James Franck Inst, Chicago, IL 60637 USA. Univ Chicago, Dept Chem, Chicago, IL 60637 USA. Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA USA. EM jlmille@uchicago.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 317-PHYS BP U480 EP U480 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002492 ER PT J AU Minko, S Usov, D Luchnikov, V Mueller, M Ionov, L Scholl, A Pfuetze, G Stamm, M AF Minko, S Usov, D Luchnikov, V Mueller, M Ionov, L Scholl, A Pfuetze, G Stamm, M TI Responsive mixed polymer brushes for patterning of surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Inst Polymerforsch Dresden, Dept Polymer Interfaces, D-01069 Dresden, Germany. Univ Mainz, D-6500 Mainz, Germany. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. Inst Polymer Res Dresden, Dept Phys Chem, Dresden, Germany. Inst Polymer Res Dresden, Dept Phys Polymers, Dresden, Germany. EM minko@ipfdd.de RI Muller, Marcus/B-9898-2009; Umlauf, Ursula/D-3356-2014; Scholl, Andreas/K-4876-2012 OI Muller, Marcus/0000-0002-7472-973X; NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 700-POLY BP U652 EP U652 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003397 ER PT J AU Mo, Y Adzic, RR AF Mo, Y Adzic, RR TI PT monolayer electrocatalysts for O2 reduction. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Mat Sci, Upton, NY 11973 USA. EM yibomo@bnl.gov; adzic@bnl.gov NR 0 TC 0 Z9 0 U1 2 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 PY 2003 VL 225 MA 484-COLL BP U682 EP U682 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803233 ER PT J AU Molaison, JJ Turner, JFC McLain, SE AF Molaison, JJ Turner, JFC McLain, SE TI Structural study of solutes in superacidic media. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Univ Tennessee, Neutron Sci Consortium, Knoxville, TN 37996 USA. Argonne Natl Lab, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 585-INOR BP U100 EP U100 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000580 ER PT J AU Moloy, EC Cygan, RT Bonhomme, F Teter, DM Navrotsky, A AF Moloy, EC Cygan, RT Bonhomme, F Teter, DM Navrotsky, A TI Molecular simulations of anhydrous Na-6[Al6Si6O24] sodalite. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Calif Davis, Dept Chem Engn & Mat Sci, Thermochem Facil, Davis, CA 95616 USA. Sandia Natl Labs, Dept Geochem, Livermore, CA 94550 USA. EM ecmoloy@ucdavis.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 182-COMP BP U757 EP U757 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803493 ER PT J AU Mong, GM Campbell, JA Sharma, AK AF Mong, GM Campbell, JA Sharma, AK TI Analysis of organic acids in simulated and actual tank waste using ion chromatography. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 91-NUCL BP U263 EP U263 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001347 ER PT J AU Mong, GM Campbell, JA AF Mong, GM Campbell, JA TI Reduction of activity of radioactive mixed-wastes prior to carboxylate and chelator analysis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 90-NUCL BP U263 EP U263 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001346 ER PT J AU Mong, GM Lucke, RB Valenzuela, BR Campbell, JA AF Mong, GM Lucke, RB Valenzuela, BR Campbell, JA TI Analysis of chelators and degradation products using derivatization gas chromatography/mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 89-NUCL BP U263 EP U263 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001345 ER PT J AU Monk, DJ Stegemiller, ML Conklin, S Paddock, JR Heineman, WR Seliskar, CJ Ridgway, TH Bryan, SA Hubler, TL AF Monk, DJ Stegemiller, ML Conklin, S Paddock, JR Heineman, WR Seliskar, CJ Ridgway, TH Bryan, SA Hubler, TL TI Spectroelectrochemical sensor for technetium: Preconcentration and quantification of technetium in polymer modified electrodes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Cincinnati, Dept Chem, Cincinnati, OH 45221 USA. Pacific NW Natl Lab, Radiochem Proc Lab, Richland, WA USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 251-ENVR BP U838 EP U838 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803962 ER PT J AU Moody, KJ AF Moody, KJ TI Requirements for a radiochemical harvesting facility. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, Livermore, CA 94551 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 127-NUCL BP U269 EP U269 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001383 ER PT J AU Moog, RS Spencer, JN Straumanis, A AF Moog, RS Spencer, JN Straumanis, A TI Effectiveness of guided inquiry learning SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Franklin & Marshall Coll, Dept Chem, Lancaster, PA 17604 USA. Sandia Natl Labs, Livermore, CA 94550 USA. EM rick.moog@fandm.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 1287-CHED BP U545 EP U545 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802592 ER PT J AU Moog, RS Creegan, FJ Hanson, DM Spencer, JN Straumanis, A Bunce, DM Wolfskill, TA AF Moog, RS Creegan, FJ Hanson, DM Spencer, JN Straumanis, A Bunce, DM Wolfskill, TA TI Process oriented guided inquiry learning project. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Catholic Univ Amer, Dept Chem, Washington, DC 20064 USA. Sandia Natl Labs, Albuquerque, NM 87123 USA. SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. Washington Coll, Dept Chem, Chestertown, MD 21620 USA. Franklin & Marshall Coll, Dept Chem, Lancaster, PA 17604 USA. EM rick.moog@fandm.edu; frank.creegan@washcoll.edu; David.Hanson@sunysb.edu; Jim.Spencer@fandm.edu; arstrau@sandia.gov; bunce@cua.edu; Troy.Wolfskill@sunysb.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 51-CHED BP U332 EP U332 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917801359 ER PT J AU Nagabhushana, N Haslebacher, WF Venkataraman, VK Bandopadhyay, S AF Nagabhushana, N Haslebacher, WF Venkataraman, VK Bandopadhyay, S TI Thermal mechanochemical stability of oxygen transport perovskite membranes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Alaska Fairbanks, Sch Mineral Engn, Fairbanks, AK 99775 USA. US DOE, Natl Energy Technol Lab, Washington, DC 20585 USA. EM ffnn@uaf.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 184-FUEL BP U872 EP U872 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804157 ER PT J AU Nandanan, E O'Neil, JP Hanrahan, SM VanBrocklin, HF AF Nandanan, E O'Neil, JP Hanrahan, SM VanBrocklin, HF TI Halogenated rotenone analogs: Synthesis and evaluation of mitochondrial electron transport chain (ETC) complex I inhibitors. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Nucl Med & Funct Imaging, Berkeley, CA 94720 USA. EM enandanan@lbl.gov RI Erathodiyil, Nandanan/A-8333-2010 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 218-MEDI BP U212 EP U212 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001140 ER PT J AU Nandanan, E VanBrocklin, HF AF Nandanan, E VanBrocklin, HF TI Synthesis and evaluation of 6-acrylamido4-phenylaminoquinazolines as tyrosine kinase EGFR inhibitors. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Nucl Med & Funct Imaging, Div Life Sci, Berkeley, CA 94720 USA. EM enandanan@lbl.gov RI Erathodiyil, Nandanan/A-8333-2010 NR 0 TC 1 Z9 1 U1 0 U2 0 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 PY 2003 VL 225 MA 73-MEDI BP U186 EP U186 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000999 ER PT J AU Nash, KL Hancock, M Laszak, I Borkowski, M AF Nash, KL Hancock, M Laszak, I Borkowski, M TI Oxidative leaching of plutonium from simulated Hanford tank-waste sludges. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 119-IEC BP U970 EP U970 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804539 ER PT J AU Nash, KL Borkowski, M Lavallette, C Gannaz, B Paine, RT Gan, XM AF Nash, KL Borkowski, M Lavallette, C Gannaz, B Paine, RT Gan, XM TI Investigations of the thermodynamics of Eu3+, Am3+, and UO22+ phase transfer reactions with selected 2,6-bis[(di-alkylphosphino)methyl]pyridine-N,P,P '-trioxides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Univ New Mexico, Dept Chem, Albuquerque, NM 87131 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 880-INOR BP U161 EP U161 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000874 ER PT J AU Nedeljkovic, JM Micic, OI Ahrenkiel, SP Miedaner, A Nozik, AJ AF Nedeljkovic, JM Micic, OI Ahrenkiel, SP Miedaner, A Nozik, AJ TI Synthesis and characterization of colloidal InP quantum rods and dots. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Jovan_Nedeljkovic@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 416-PHYS BP U510 EP U510 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002589 ER PT J AU Nelson, EJ Roses, TP Allen, PG Ryerson, FJ AF Nelson, EJ Roses, TP Allen, PG Ryerson, FJ TI XANES study of iron and uranium oxidation states in Nevada Test Site nuclear melt glasses. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Seaborg Inst Transactinium Sci, Livermore, CA 94551 USA. Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, Livermore, CA 94551 USA. Lawrence Livermore Natl Lab, Geosci & Environm Technol Div, Livermore, CA 94551 USA. EM ne1son87@llnl.gov NR 0 TC 0 Z9 0 U1 1 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 PY 2003 VL 225 MA 52-NUCL BP U256 EP U257 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001308 ER PT J AU Nenoff, TM Welk, M Bonhomme, F AF Nenoff, TM Welk, M Bonhomme, F TI Defect-free zeolite thin film membranes for CO2 separation and isolation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. EM tmnenof@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 26 BP U955 EP U956 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804448 ER PT J AU Neumark, DM Peterka, D Poisson, L Ahmed, M AF Neumark, DM Peterka, D Poisson, L Ahmed, M TI Photoionization and photoelectron spectroscopy of He nanodroplets. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Ernest Orlando Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA USA. EM dan@radon.cchem.brrkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 525-PHYS BP U527 EP U527 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002695 ER PT J AU Newton, MD AF Newton, MD TI Mechanism of charge transfer at film-modified electrodes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM Newton@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 167-COLL BP U633 EP U633 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802917 ER PT J AU Nicolas, C Peterka, DS Ahmed, M Poisson, L Ruscic, B Tang, AN Zhang, T Morton, ML AF Nicolas, C Peterka, DS Ahmed, M Poisson, L Ruscic, B Tang, AN Zhang, T Morton, ML TI Radical photoionization studies with VUV synchrotron radiation. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Chem Dynam Grp, Berkeley, CA 94720 USA. UC Berkeley, Dept Chem, Berkeley, CA USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Univ Calif Davis, Dept Chem, Davis, CA USA. EM nic@leea.lbl.gov RI Ruscic, Branko/A-8716-2008 OI Ruscic, Branko/0000-0002-4372-6990 NR 0 TC 0 Z9 0 U1 1 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 PY 2003 VL 225 MA 269-PHYS BP U473 EP U473 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002444 ER PT J AU Nishiyama, Y Chanzy, H Wada, M Sugiyama, J Langan, P AF Nishiyama, Y Chanzy, H Wada, M Sugiyama, J Langan, P TI Crystal structure and hydrogen bonding of cellulose polymorphs. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Tokyo, Grad Sch Agr & Life Sci, Tokyo 1138657, Japan. Univ Tokyo, Dept Biomat Sci, Tokyo, Japan. Kyoto Univ, Wood Res Inst, Kyoto, Japan. Inst Laue Langevin, Grenoble, France. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM nishiy@sbp.fp.a.u-tokyo.ac.jp; langan_paul@lanl.gov RI Langan, Paul/N-5237-2015 OI Langan, Paul/0000-0002-0247-3122 NR 0 TC 1 Z9 1 U1 2 U2 11 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 PY 2003 VL 225 MA 37-CELL BP U273 EP U273 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917801179 ER PT J AU Nitsche, H Panak, PJ Booth, CH Shuh, DK AF Nitsche, H Panak, PJ Booth, CH Shuh, DK TI XAS and fundamental plutonium interaction processes with environmental microorganisms. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. Forschungszentrum Karlsruhe, Inst Nucl Waste Management, Karlsruhe, Germany. Lawrence Berkeley Lab, Glenn T Seaborg Ctr, Div Chem Sci, Berkeley, CA USA. EM hnitsche@lbl.gov RI Booth, Corwin/A-7877-2008 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 PY 2003 VL 225 MA 20-NUCL BP U252 EP U252 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001276 ER PT J AU Nooijen, M Baumgartner, G Bernholdt, DE Cociorva, D Harrison, RJ Hirata, S Ramanujam, J Sadayappan, P Pitzer, RM Auer, A AF Nooijen, M Baumgartner, G Bernholdt, DE Cociorva, D Harrison, RJ Hirata, S Ramanujam, J Sadayappan, P Pitzer, RM Auer, A TI Automatic synthesis of advanced electronic structure programs SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Ohio State Univ, Dept Chem, Columbus, OH 43210 USA. Louisiana State Univ, Baton Rouge, LA 70803 USA. Batelle, Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Princeton Univ, Dept Chem, Princeton, NJ 08544 USA. EM nooijen@princeton.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 003-COMP BP U702 EP U702 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803335 ER PT J AU Nozik, AJ Ellingson, RJ Blackburn, JL Micic, OI Rumbles, G AF Nozik, AJ Ellingson, RJ Blackburn, JL Micic, OI Rumbles, G TI Relaxation dynamics of photogenerated electrons and holes in quantum dots and applications to photon conversion in quantum dot solar cells. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Arthur_Nozik@nrel.gov RI Blackburn, Jeffrey/D-7344-2012; Ellingson, Randy/H-3424-2013 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 122-PHYS BP U451 EP U452 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002302 ER PT J AU Nusser, JB Millsap, TD Sunday, AJ Byrne, BC Huffman, DA Joly, AG Woodford, JN AF Nusser, JB Millsap, TD Sunday, AJ Byrne, BC Huffman, DA Joly, AG Woodford, JN TI Theoretical and experimental investigation of the two-photon absorption cross section of flavonoid and anthocyanidin dyes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Eastern Oregon Univ, Dept Chem, La Grande, OR 97850 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 819-CHED BP U478 EP U478 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802125 ER PT J AU Nygren, CL Rawn, CJ Speakman, S Turner, JFC AF Nygren, CL Rawn, CJ Speakman, S Turner, JFC TI Synthesis and characterization of novel icroporous aluminum phosphates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Diffract & Thermophys Properties Grp, Oak Ridge, TN USA. Univ Tennessee, Neutron Sci Consortium, Knoxville, TN 37996 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 606-INOR BP U103 EP U103 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000601 ER PT J AU Obrey, SJ John, KD Messerle, L Baker, RT Sattelberger, AP AF Obrey, SJ John, KD Messerle, L Baker, RT Sattelberger, AP TI Chemistry of m-m multiply-bonded homoleptic allyl complexes, M-2(pi-allyl)(4) (M = Mo, Re). SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Univ Iowa, Dept Chem, Iowa City, IA 52242 USA. EM sobrey@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 835-INOR BP U154 EP U154 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000829 ER PT J AU Ocko, BM Kraack, H Sloutskin, E Deutsch, M Pershan, P AF Ocko, BM Kraack, H Sloutskin, E Deutsch, M Pershan, P TI Ordered alkane-thiol monolayers on the liquid mercury surface. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. Bar Ilan Univ, Dept Phys, Ramat Gan, Israel. Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 515-COLL BP U687 EP U687 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803264 ER PT J AU Omatete, OO Burchell, TD Judkins, RR Armstrong, T AF Omatete, OO Burchell, TD Judkins, RR Armstrong, T TI Novel CO2 separation technique using a carbon fiber composite molecular sieve SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM omateteoo@ornl.gov RI Burchell, Tim/E-6566-2017 OI Burchell, Tim/0000-0003-1436-1192 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 28 BP U956 EP U956 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804450 ER PT J AU Omberg, KM AF Omberg, KM TI Counterterrorism and careers at the DOE National Laboratories SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Syst Engn & Integrat Grp, Los Alamos, NM 87545 USA. EM komberg@lanl.gov RI Omberg, Kristin/I-5972-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 004-PRES BP U34 EP U34 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800087 ER PT J AU Orme, CA Noy, A Wierzbicki, A McBride, MT De Yoreo, JJ Grantham, M Dove, P Teng, H AF Orme, CA Noy, A Wierzbicki, A McBride, MT De Yoreo, JJ Grantham, M Dove, P Teng, H TI Using chiral molecules to probe mineralization. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Univ S Alabama, Dept Chem, Mobile, AL 36688 USA. Virginia Polytech Inst & State Univ, Dept Geol Sci, Blacksburg, VA USA. George Washington Univ, Dept Earth & Environm Sci, Washington, DC 20052 USA. EM orme1@llnl.gov RI Dove, Patricia/A-7911-2010 NR 0 TC 1 Z9 1 U1 0 U2 0 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 PY 2003 VL 225 MA 498-COLL BP U684 EP U684 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803247 ER PT J AU Ozdemir, E Schroeder, K Morsi, BI AF Ozdemir, E Schroeder, K Morsi, BI TI Mechanism of carbon dioxide adsorption on moist coals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA. US DOE, NETL, Pittsburgh, PA 15261 USA. EM ekost4@pitt.edu NR 0 TC 0 Z9 0 U1 1 U2 1 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 PY 2003 VL 225 MA 057-FUEL BP U851 EP U852 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804030 ER PT J AU Pace, MN Mayes, MA Jardine, PM Fendorf, S Melhorn, TL Yin, XP Ladd, JL Teerlink, J Zachara, JM AF Pace, MN Mayes, MA Jardine, PM Fendorf, S Melhorn, TL Yin, XP Ladd, JL Teerlink, J Zachara, JM TI Contaminant transport through subsurface material from the DOE Hanford Reservation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. EM pacem@ornl.gov 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 PY 2003 VL 225 MA 230-ENVR BP U834 EP U834 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803941 ER PT J AU Palosz, B Grzanka, E Stelmakh, S Gierlotka, S Weber, HP Proffen, T Palosz, W AF Palosz, B Grzanka, E Stelmakh, S Gierlotka, S Weber, HP Proffen, T Palosz, W TI Examination of short- and long-range atomic order in nanocrystalline sic and diamond by powder diffraction methods SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 High Pressure Res Ctr UNIPRESS, PL-01142 Warsaw, Poland. Los Alamos Natl Lab, Los Alamos, NM USA. NASA, George C Marshall Space Flight Ctr, SD46, USRA, Greenbelt, MD USA. EM palosz@unipress.waw.pl RI Lujan Center, LANL/G-4896-2012; Proffen, Thomas/B-3585-2009 OI Proffen, Thomas/0000-0002-1408-6031 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 050-IEC BP U959 EP U959 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804472 ER PT J AU Panessa-Warren, BJ Wong, SS Warren, JB AF Panessa-Warren, BJ Wong, SS Warren, JB TI Functionalized carbon nanotube loops for identifying GCLQ-receptor protein on human cells SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. SUNY Stony Brook, Dept Chem, Stony Brook, NY USA. Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. SUNY Stony Brook, Dept Med, Stony Brook, NY 11794 USA. SUNY Stony Brook, Clin Microbiol Lab, Stony Brook, NY 11794 USA. EM bpanessa@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 196-IEC BP U982 EP U982 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804616 ER PT J AU Parak, WJ Boudreau, R Le Gros, M Gerion, D Zanchet, D Micheel, CM Williams, SC Alivisatos, P Larabell, C AF Parak, WJ Boudreau, R Le Gros, M Gerion, D Zanchet, D Micheel, CM Williams, SC Alivisatos, P Larabell, C TI Biological uses of semiconducting nanocrystals SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Lawrence Berkeley Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RI Zanchet, Daniela/D-6566-2012; Parak, Wolfgang J./M-3998-2014 OI Zanchet, Daniela/0000-0003-1475-2548; Parak, Wolfgang J./0000-0003-1672-6650 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 019-IEC BP U954 EP U954 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804441 ER PT J AU Parkinson, BA Takeda, N AF Parkinson, BA Takeda, N TI Unusual electrochemical behavior of squaraine dye monolayers on HOPG surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Colorado State Univ, Dept Chem, Ft Collins, CO 80523 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM Bruce.Parkinson@colostate.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 447-COLL BP U677 EP U677 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803196 ER PT J AU Peden, CHF Barlow, SE Hoard, JW Kim, DH Kwak, JH Lee, CS Balmer-Millar, ML Panov, AG Szanyi, J Tonkyn, RG AF Peden, CHF Barlow, SE Hoard, JW Kim, DH Kwak, JH Lee, CS Balmer-Millar, ML Panov, AG Szanyi, J Tonkyn, RG TI Selective reduction of NOx in oxygen rich environments with plasma-assisted catalysis: Catalyst development and mechanistic studies. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Natl Lab, Phys & Chem Sci Div, Richland, WA 99352 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. Caterpillar Inc, Peoria, IL 61629 USA. EM chuck.peden@pnl.gov RI Kwak, Ja Hun/J-4894-2014 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 0021-CATL BP U53 EP U53 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800153 ER PT J AU Perebeinos, V Newton, MD AF Perebeinos, V Newton, MD TI Electronic structure of thiolate self-assembled monolayers on Cu(111) and Au(111) substrates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Phys 510A, Upton, NY 11973 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM vasili@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 079-COMP BP U744 EP U744 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803410 ER PT J AU Peterka, DS Poisson, L Lindinger, A Neumark, DM AF Peterka, DS Poisson, L Lindinger, A Neumark, DM TI Imaging studies of helium nanodroplets. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Div Chem Sci, Chem Dynam Grp, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Div Chem, Chem Dynam Grp, Berkeley, CA 94720 USA. Free Univ Berlin, D-1000 Berlin, Germany. EM dspeterka@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 299-phys BP U477 EP U477 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002474 ER PT J AU Petersen, CE Campbell, JA Hoppe, EW AF Petersen, CE Campbell, JA Hoppe, EW TI Capillary zone electrophoresis of organic acids in simulated Hanford tank waste using indirect UV detection. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Pacific NW Natl Lab, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 92-NUCL BP U263 EP U263 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001348 ER PT J AU Petrongolo, C Defazio, P Gray, SK Santoro, F AF Petrongolo, C Defazio, P Gray, SK Santoro, F TI Reaction dynamics with the Gray-Balint-Kurti approach. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Siena, Dept Chem, I-53100 Siena, Italy. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. CNR, Ist Proc Chimicofis, I-56100 Pisa, Italy. EM petrongolo@cuces.unisi.it RI Santoro, Fabrizio /E-1944-2011 OI Santoro, Fabrizio /0000-0003-4402-2685 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 101-PHYS BP U449 EP U449 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002281 ER PT J AU Petruska, MA Malko, AV Htoon, H Achermann, M Hollingsworth, JA Klimov, VI AF Petruska, MA Malko, AV Htoon, H Achermann, M Hollingsworth, JA Klimov, VI TI Nanocrystal quantum dot assemblies: Controlling electronic and photonic interactions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM petruska@lanl.gov RI Achermann, Marc/A-1849-2011 OI Achermann, Marc/0000-0002-3939-9309 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 241-PHYS BP U469 EP U469 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002417 ER PT J AU Phillips, J Chen, CK Zea, H Datye, AK AF Phillips, J Chen, CK Zea, H Datye, AK TI Plasma torch generation of supported metal catalysts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA. EM jphillips@lanl.gov RI Phillips, Jonathan/D-3760-2011 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 0010-CATL BP U51 EP U51 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800142 ER PT J AU Pickering, IJ Prince, RC Salt, DE George, GN AF Pickering, IJ Prince, RC Salt, DE George, GN TI Metals and metalloids in plants: What can X-rays tell us? SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Stanford Linear Accelerator Ctr, Synchrotron Radiat Lab, Stanford, CA 94061 USA. ExxonMobil Res & Engn, Corp Strateg Res, Annandale, NJ USA. Purdue Univ, Dept Hort & Landscape Architecture, W Lafayette, IN 47907 USA. EM pickering@slac.stanford.edu RI Salt, David/B-3864-2009; George, Graham/E-3290-2013; Pickering, Ingrid/A-4547-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 245-ENVR BP U837 EP U837 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803956 ER PT J AU Pines, A AF Pines, A TI "Lighting up" NMR and MRI. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. EM pines@cchem.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 196-ANYL BP U137 EP U138 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800602 ER PT J AU Poisson, L Shu, J Peterka, DS Nicolas, C Ahmed, M AF Poisson, L Shu, J Peterka, DS Nicolas, C Ahmed, M TI VUV photoionization studies of metal and metal oxide clusters. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Div Chem, Chem Dynam Grp, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM lionel@radon.echem.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 419-PHYS BP U511 EP U511 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002592 ER PT J AU Powell, KR Serkiz, SM Kaplan, DL Fliermans, CB Sochor, CS Brewers, KE Lee, CM Schank, A AF Powell, KR Serkiz, SM Kaplan, DL Fliermans, CB Sochor, CS Brewers, KE Lee, CM Schank, A TI Monitored natural attenuation of inorganics at a site impacted by coal plant operation: Defining the source term. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. Clemson Univ, Sch Environm Environm Engn & Sci, Clemson, SC 29631 USA. EM kim.powell@srs.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 156-ENVR BP U822 EP U822 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803867 ER PT J AU Pratt, ST AF Pratt, ST TI Double-resonance studies of photoionization dynamics in small molecules. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 132-PHYS BP U453 EP U453 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002310 ER PT J AU Quintana, D Roybal, F Ramsey, SS Stimmel, J Ramsey, KB AF Quintana, D Roybal, F Ramsey, SS Stimmel, J Ramsey, KB TI Granulation technology for the minimization of radioactive contaminated waste. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, ESA AET, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 23-NUCL BP U252 EP U252 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001279 ER PT J AU Quirke, JME Yost, RA VanBerkel, GJ AF Quirke, JME Yost, RA VanBerkel, GJ TI Mass spectrometric analyses of porphyrins and geoporphyrins SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Florida Int Univ, Dept Chem, Miami, FL 33199 USA. Univ Florida, Dept Chem, Gainesville, FL 32611 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. EM quirke@fiu.edu NR 0 TC 0 Z9 0 U1 1 U2 1 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 PY 2003 VL 225 MA 066-GEOC BP U921 EP U921 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804271 ER PT J AU Rao, LF Zanonato, P Di Bernardo, P Bismondo, A AF Rao, LF Zanonato, P Di Bernardo, P Bismondo, A TI Thermodynamic studies of U(VI) complexation with acetate in dimethyl sulfoxide. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Glenn T Seaborg Ctr, Div Chem Sci, Berkeley, CA 94720 USA. Univ Padua, Dipartimento Chim Inorgan & Analit, I-35100 Padua, Italy. CNR, Ist Chim & Tecnol, Padua, Italy. EM LRao@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 361-INOR BP U65 EP U65 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000358 ER PT J AU Reimus, PW Ware, SD Lu, NP Kung, KS Neu, MP Reilly, SD Kersting, AB AF Reimus, PW Ware, SD Lu, NP Kung, KS Neu, MP Reilly, SD Kersting, AB TI Colloid-facilitated transport of plutonium in saturated fractures from the Nevada Test Site. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. EM preimus@lanl.gov NR 0 TC 2 Z9 2 U1 0 U2 1 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 PY 2003 VL 225 MA 211-IEC BP U984 EP U984 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804630 ER PT J AU Reynolds, JG Shields, SJ Roos, JW AF Reynolds, JG Shields, SJ Roos, JW TI Analysis of combustion chamber deposits by ESI-TOF-MS and MALDI-TOF-MS: Evidence of thermal degradation of polymeric gasoline additives. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Ethyl Corp, Richmond, VA USA. EM reynolds3@llnl.gov; shields9@llnl.gov 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 PY 2003 VL 225 MA 109-PMSE BP U677 EP U677 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003528 ER PT J AU Reynolds, JG Coronado, PR AF Reynolds, JG Coronado, PR TI Hydrophobic aerogels for oil-spill clean up. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM reynolds3@llnl.gov 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 PY 2003 VL 225 MA 14-PETR BP U424 EP U424 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002142 ER PT J AU Rials, TG Dorsey, GF Griffith, WL Moschler, WW Winistorfer, P Cheng, S AF Rials, TG Dorsey, GF Griffith, WL Moschler, WW Winistorfer, P Cheng, S TI Preliminary investigations on the use of radiation-curable resins for bonding wood. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Tennessee, Forest Prod Ctr, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Virginia Tech, Wood Sci & Forest Prod, Blacksburg, VA 24061 USA. IBA, Liberty Corner, NJ USA. EM trials@utk.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 50-CELL BP U275 EP U275 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917801192 ER PT J AU Riha, BD Rossabi, J AF Riha, BD Rossabi, J TI NAPL characterization using the Ribbon NAPL Sampler. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. EM brian.riha@srs.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 14-NUCL BP U251 EP U251 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001270 ER PT J AU Rodriguez, JA Liu, G Chang, ZP Jirsak, T Dvorak, J Hrbek, J Maiti, A AF Rodriguez, JA Liu, G Chang, ZP Jirsak, T Dvorak, J Hrbek, J Maiti, A TI Activation of Au nanoparticles on titania: A novel desox catalyst SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM rodrigez@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 44 BP U958 EP U958 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804466 ER PT J AU Roh, Y Phelps, TJ AF Roh, Y Phelps, TJ TI Microbial formation of Fe minerals and metal-substituted magnetite nanoparticles by iron reducing bacteria. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM rohy@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 180-GEOC BP U940 EP U940 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804385 ER PT J AU Rudd, RE AF Rudd, RE TI Nanomechanics through concurrent multiscale simulation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, PAT H Div, Livermore, CA 94550 USA. EM robert.rudd@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 011-COMP BP U703 EP U703 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803343 ER PT J AU Rundberg, RS Bredeweg, T Haight, RC Palmer, PD Reifarth, R Vieira, DJ Wouters, J O'Donnell, JM Ullmann, JL Wilhelmy, JB AF Rundberg, RS Bredeweg, T Haight, RC Palmer, PD Reifarth, R Vieira, DJ Wouters, J O'Donnell, JM Ullmann, JL Wilhelmy, JB TI Neutron cross-section measurements of off-stable nuclides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, C INC, Los Alamos, NM 87545 USA. Forschungszentrum Karlsruhe, Inst Kernphys, D-76021 Karlsruhe, Germany. Los Alamos Natl Lab, Chem Sci & Technol Div, Nucl Chem Grp, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 139-NUCL BP U271 EP U271 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001395 ER PT J AU Ruscic, B AF Ruscic, B TI Divertimento in thermochemistry: From photoionization spectroscopy of radicals to active tables. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM ruscic@anl.gov RI Ruscic, Branko/A-8716-2008 OI Ruscic, Branko/0000-0002-4372-6990 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 58-PHYS BP U443 EP U443 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002240 ER PT J AU Rustenholtz, AF Fulton, JL Wai, CM AF Rustenholtz, AF Fulton, JL Wai, CM TI FT-IR study of crown ether complexation with water in liquid and supercritical CO2. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Idaho, Dept Chem, Moscow, ID 83844 USA. Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 349-PHYS BP U484 EP U484 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002524 ER PT J AU Ruth, LA AF Ruth, LA TI Vision 21: Pathway to clean power from coal. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM ruth@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 138-FUEL BP U865 EP U865 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804111 ER PT J AU Ruzycki, NJ Herman, GS Boatner, LA Diebold, U AF Ruzycki, NJ Herman, GS Boatner, LA Diebold, U TI Scanning tunneling microscopy study of the anatase (100) surface. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Tulane Univ, Dept Phys, New Orleans, LA 70118 USA. Hewlett Packard Corp, Palo Alto, CA USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. EM nruzycki@tulane.edu RI Diebold, Ulrike/A-3681-2010 OI Diebold, Ulrike/0000-0003-0319-5256 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 39-PETR BP U428 EP U428 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002166 ER PT J AU Saha, B Espenson, JH AF Saha, B Espenson, JH TI Oxidation of substituted N-hydroxyphthalimide by Co(III) species. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Iowa State Univ, Dept Chem, Ames, IA 50011 USA. EM basudeb@iastate.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 566-INOR BP U97 EP U97 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000561 ER PT J AU Sanders, LM Datye, K Sault, AG Swartzentruber, BS AF Sanders, LM Datye, K Sault, AG Swartzentruber, BS TI Diffusion of three-dimensional metal particles on an oxide substrate. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ New Mexico, Dept Chem Engn, Dept Chem Mat, Sandia Natl Labs, Albuquerque, NM 87185 USA. EM lamiyos@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 473-COLL BP U681 EP U681 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803222 ER PT J AU Sandi, G Kizilel, R Joachin, H Carrado, KA Seifert, S Smith, LJ Gerald, RE AF Sandi, G Kizilel, R Joachin, H Carrado, KA Seifert, S Smith, LJ Gerald, RE TI Characterization of polymer nanocomposites used in rechargeable systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. IIT, Chem & Environm Engn Dept, Chicago, IL 60616 USA. Argonne Natl Lab, Div Sci Mat, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. EM gsandi@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 227-FUEL BP U878 EP U878 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804200 ER PT J AU Schuetz, CA Frenklach, M Kollias, AC Lester, WA AF Schuetz, CA Frenklach, M Kollias, AC Lester, WA TI Response-surface geometry optimization in quantum Monte Carlo: Application to formaldehyde. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Kenneth S Pitzer Ctr Theoret Chem, Lester Grp, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM schuetz@me.berkeley.edu; sasha@okra.cchem.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 276-PHYS BP U474 EP U474 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002451 ER PT J AU Schultz, AJ AF Schultz, AJ TI Applications of pulsed-neutron single-crystal diffraction in chemical crystallography. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 469-INOR BP U82 EP U82 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000466 ER PT J AU Scott, JR McJunkin, TR Tremblay, PL AF Scott, JR McJunkin, TR Tremblay, PL TI Classification of mass spectra using fuzzy logic inference engine. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Idaho Natl Engn & Environm Lab, Dept Chem, Idaho Falls, ID 83415 USA. EM scotjr@inel.gov RI McJunkin, Timothy/G-8385-2011; Scott, Jill/G-7275-2012 OI McJunkin, Timothy/0000-0002-4987-9170; NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 078-CINF BP U561 EP U561 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802691 ER PT J AU Serkiz, SM Powell, KR Pishko, AL AF Serkiz, SM Powell, KR Pishko, AL TI Impact of precipitates on the removal of cesium from Hanford waste tank simulants. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. EM steven.serkiz@srs.gov; kim.powell@srs.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 73-NUCL BP U260 EP U260 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001329 ER PT J AU Serkiz, SM Kanzleiter, K Cumbie, EE Karanfil, T AF Serkiz, SM Kanzleiter, K Cumbie, EE Karanfil, T TI Evaluation of silver impregnated activated carbons for I-129 and Tc-99 from an acidic groundwater. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA. Clemson Univ, Dept Environm Sci & Engn, Clemson, SC 29631 USA. EM steven.serkiz@srs.gov RI Karanfil, Tanju/D-5323-2009 OI Karanfil, Tanju/0000-0003-0986-5628 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 PY 2003 VL 225 MA 70-NUCL BP U259 EP U259 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001326 ER PT J AU Shamsi, A AF Shamsi, A TI Study of carbon formation on NI-MGO catalyst during reforming of (CH4)-C-13 with CO2 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26505 USA. EM ashams@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 121-FUEL BP U862 EP U862 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804094 ER PT J AU Shao, YH AF Shao, YH TI Linear-scaling indirect-diagonalization methods in density functional theory calculations. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Gordon Grp, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM yihan@bastille.cchem NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 11-PHYS BP U436 EP U436 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002193 ER PT J AU Shaughnessy, DA Dardenne, YXM Moody, KJ Stoyer, MA Wild, JF AF Shaughnessy, DA Dardenne, YXM Moody, KJ Stoyer, MA Wild, JF TI Development of a U-235M generator for measurement of neutron cross sections. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Analyt & Nucl Chem Div, Livermore, CA 94551 USA. EM shaughnessy2@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 146-NUCL BP U272 EP U272 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001402 ER PT J AU Shelnutt, JA Haddad, R Medforth, CJ AF Shelnutt, JA Haddad, R Medforth, CJ TI Nonplanar deformations cause the red shifts in the UV-visible bands of ruffled tetraalkylporphyrins SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Sandia Natl Labs, Albuquerque, NM 87106 USA. Univ New Mexico, Dept Chem & Nucl Engn, Albuquerque, NM 87131 USA. EM jasheln@unm.edu RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 065-GEOC BP U921 EP U921 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804270 ER PT J AU Shepard, R Wagner, AF Minkoff, M Zhou, Y AF Shepard, R Wagner, AF Minkoff, M Zhou, Y TI Applications of the SPAM iterative diagonalization method. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. EM shepard@tcg.anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 32-PHYS BP U439 EP U439 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002214 ER PT J AU Sholl, D Kamakoti, P Alfonso, D AF Sholl, D Kamakoti, P Alfonso, D TI OFT studies of surface reactivity for Pd-alloy hydrogen membranes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA. Natl Energy Technol Lab, Pittsburgh, PA USA. EM sholl@andrew.cmu.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 399-COLL BP U669 EP U669 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803148 ER PT J AU Sigman, ME Dabestani, R Hagaman, EW AF Sigman, ME Dabestani, R Hagaman, EW TI Photochemical and spectroscopic studies of PAH motion at interfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Cent Florida, Orlando, FL 32816 USA. Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. EM hagamanew@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 120-ENVR BP U816 EP U816 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803831 ER PT J AU Simons, DJH Anderson, KB AF Simons, DJH Anderson, KB TI Laboratory-scale flow reactor design to study metal sulfide interactions with carbon species under hydrothermal conditions SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM simons@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 015-GEOC BP U913 EP U913 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804220 ER PT J AU Siriwardane, R Shen, M Fisher, E Poston, J AF Siriwardane, R Shen, M Fisher, E Poston, J TI CO2 capture utilizing solid sorbents SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA. EM rsiriw@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 25 BP U955 EP U955 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804447 ER PT J AU Slade, A Sasaki, DY Waggoner, TA Burns, AR Yip, CM AF Slade, A Sasaki, DY Waggoner, TA Burns, AR Yip, CM TI Nanoscale imaging of biological toxin-lipid bilayer interactions by scanning probe microscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Toronto, Inst Biomat & Biomed Engn, Dept Biochem, Toronto, ON M5S 3G9, Canada. Sandia Natl Labs, Biomol Mat & Interface Sci Dept, Livermore, CA 94550 USA. Sandia Natl Labs, Biomol Mat & Interfaces Dept, Livermore, CA 94550 USA. Univ Toronto, Inst Biomat & Biomed Engn, Dept Chem Engn & Appl Chem, Toronto, ON, Canada. EM andrea.slade@utoronto.ca NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 201-COLL BP U638 EP U638 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802951 ER PT J AU Sloop, FV Bonnesen, PV AF Sloop, FV Bonnesen, PV TI Synthesis of dibenzo-14-crown-4 ethers bearing fluorinated alcohol sidearms. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM sloopfvjr@ornl.gov RI Sloop, Jr., Frederick/J-2301-2016 OI Sloop, Jr., Frederick/0000-0001-6473-9507 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 351-ORGN BP U338 EP U339 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001756 ER PT J AU Smalley, JF Feldberg, SW Newton, MD AF Smalley, JF Feldberg, SW Newton, MD TI Heterogeneous electron transfer kinetics through alkanethiol monolayers on gold. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM smalley@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 172-COLL BP U634 EP U634 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802922 ER PT J AU Smith, BL Perry, WL Bulian, CJ Busse, JR Ott, KC Dye, RC Son, SF AF Smith, BL Perry, WL Bulian, CJ Busse, JR Ott, KC Dye, RC Son, SF TI Synthesis and performance of nano-scale tungsten oxides in metastable intermolecular composite materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Dynam Expt Div, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM bettina@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 009-TECH BP U565 EP U565 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802699 ER PT J AU Smith, DH Bromhal, GS Ertekin, T Odusote, O Sams, WN Jikich, SJ AF Smith, DH Bromhal, GS Ertekin, T Odusote, O Sams, WN Jikich, SJ TI Simulating carbon dioxide sequestration in coal seams: Effects of anisotropy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Natl Energy Technol Lab, Morgantown, WV 26507 USA. Natl Energy Technol Lab, Parsons, WV USA. Penn State Univ, Dept Energy & Geoenvironm Engn, University Pk, PA 16802 USA. EM dsmith@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 056-FUEL BP U851 EP U851 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804029 ER PT J AU Smith, RD AF Smith, RD TI Analyzing complex biological systems: The roles of separations and mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 251-ANYL BP U146 EP U146 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800657 ER PT J AU Smith, RD Tang, KQ AF Smith, RD Tang, KQ TI Achieving the ultimate in sensitivity and dynamic range with ESI-MS. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. Pacific NW Lab, Environm Mol Sci Lab, Richland, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 239-ANYL BP U144 EP U144 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800645 ER PT J AU Somorjai, G Hwang, K AF Somorjai, G Hwang, K TI Surface mobility of atoms and molecules is the key ingredient of their chemical acitivty. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. EM Somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 128-COLL BP U627 EP U627 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802879 ER PT J AU Somorjai, GA Zhu, J Grunes, J AF Somorjai, GA Zhu, J Grunes, J TI Fabrication of 2-dimensional and 3-dimensional platinum nanoparticle systems for chemisorption and catalytic reaction studies SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. EM Somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 45 BP U958 EP U959 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804467 ER PT J AU Somorjai, GA Chou, K AF Somorjai, GA Chou, K TI Use of sum frequency generation (SFG) vibrational spectroscopy to monitor the structure of adsorbates with changing electrode potential. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. EM Somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 72-COLL BP U618 EP U618 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802823 ER PT J AU Somorjai, GA Opdahl, A AF Somorjai, GA Opdahl, A TI Combined atomic force microscopy (AFM) and sum frequency generation (SFG) vibrational spectroscopy studies of polymer surfaces. Friction, stretching and stiffness. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Berkeley, CA 94720 USA. Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. EM somorjai@socrates.berkeley.edu 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 PY 2003 VL 225 MA 283-PMSE BP U703 EP U703 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003702 ER PT J AU Somorjai, GA Kim, J Koffas, T AF Somorjai, GA Kim, J Koffas, T TI Strategies for polymer surface modification: Sum frequency generation (SFG) vibrational spectroscopy and atomic force microscopy (AFM) studies. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Dept Chem, Berkeley, CA 94720 USA. EM Somorjai@socrates.berkeley.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 56-POLY BP U540 EP U540 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002753 ER PT J AU Sonnenberg, JL Hay, PJ Martin, RL Keogh, DW AF Sonnenberg, JL Hay, PJ Martin, RL Keogh, DW TI Theoretical studies of bonding in uranyl complexes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Ohio State Univ, Dept Chem, Columbus, OH 43210 USA. Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Div Chem, GT Seaborg Inst, Los Alamos, NM 87545 USA. EM sonnenberg.11@osu.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 878-INOR BP U161 EP U161 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000872 ER PT J AU Soong, Y Jones, RJ Harrison, DK Goodman, AL BAltrus, JP Walbert, GF Hedges, SW AF Soong, Y Jones, RJ Harrison, DK Goodman, AL BAltrus, JP Walbert, GF Hedges, SW TI CO2 sequestration with oriskany brine. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, NETL, Pittsburgh, PA 15236 USA. EM soong@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 058-FUEL BP U852 EP U852 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804031 ER PT J AU Spence, RD Barton, JW AF Spence, RD Barton, JW TI Mercury speciation and stabilization in high PH tank waste. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Sci & Technol, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN 37831 USA. EM spencerd@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 118-IEC BP U969 EP U969 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804538 ER PT J AU Spence, RD AF Spence, RD TI Grout formulations for filling tanks and stabilizing contaminants. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA. EM spencerd@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 115-IEC BP U969 EP U969 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804535 ER PT J AU Sportsman, KS Abney, KD Bluhm, EA AF Sportsman, KS Abney, KD Bluhm, EA TI Actinide extraction via facilitated transport through fixed site carrier membranes. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Nucl Mat Technol, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Actinide Proc Chem Grp, Los Alamos, NM 87545 USA. EM sport@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 123-IEC BP U970 EP U970 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804543 ER PT J AU Srinivasan, T Rao, LF Garnov, AY AF Srinivasan, T Rao, LF Garnov, AY TI Studies on NP(V) hydrolysis at variable temperatures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. EM tgsrinivasan@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 399-INOR BP U71 EP U71 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000396 ER PT J AU Srivastava, SC Meinken, GE Springer, K Freimuth, P AF Srivastava, SC Meinken, GE Springer, K Freimuth, P TI Novel ligands based on adenoviral knob protein for molecular imaging. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. EM suresh@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 0004-BTEC BP U44 EP U44 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800116 ER PT J AU Stamenkovic, V Arenz, M Ross, PN Markovic, N AF Stamenkovic, V Arenz, M Ross, PN Markovic, N TI Surface chemistry on bimetallic alloy surfaces: Adsorption of anions and oxidation of COONPt3Sn(111). SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM VLStamenkovic@lbl.gov; NMMarkovic@lbl.gov RI Arenz, Matthias/C-7385-2009; Arenz, Matthias/C-3195-2016 OI Arenz, Matthias/0000-0001-9765-4315; Arenz, Matthias/0000-0001-9765-4315 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 487-COLL BP U683 EP U683 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803236 ER PT J AU Steckel, JA Cugini, AV AF Steckel, JA Cugini, AV TI Computational approaches to modeling interactions of Hg with organic compounds SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM stockelj@pitt.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 280 BP U775 EP U775 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803609 ER PT J AU Stiegel, GJ Ramezan, M AF Stiegel, GJ Ramezan, M TI Overview of clean efficient advanced power system concepts. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM stiegel@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 187-FUEL BP U872 EP U872 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804160 ER PT J AU Stiegel, GJ Ramezan, M Ratafia-Brown, J AF Stiegel, GJ Ramezan, M Ratafia-Brown, J TI Overview of advanced gas separation membrane technology for gasification systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Fed Energy Technol Ctr, Pittsburgh, PA 15236 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 PY 2003 VL 225 MA 106-FUEL BP U859 EP U860 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804079 ER PT J AU Stone, KC Jamison, GM White, PS Templeton, JL AF Stone, KC Jamison, GM White, PS Templeton, JL TI Tungsten carbyne ligand transformations: Protonation, alkyne insertion, and vinylcarbene formation. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA. Sandia Natl Labs, Livermore, CA 94550 USA. EM kstone@email.unc.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 833-INOR BP U154 EP U154 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000827 ER PT J AU Straatsma, TP AF Straatsma, TP TI Molecular basis for microbial adhesion to geochemical surfaces: Computer simulation of pseudomonas aeruginosa adhesion to goethite SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Natl Lab, Biol Sci Div, Richland, WA 99352 USA. EM tps@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 59 BP U805 EP U806 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803770 ER PT J AU Stroud, MA Salazar, RR Abney, KD Bluhm, EA AF Stroud, MA Salazar, RR Abney, KD Bluhm, EA TI Resolving the chloride residue issue in plutonium purification. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Actinide Proc Chem Grp, Los Alamos, NM 87545 USA. EM mstroud@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 135-NUCL BP U270 EP U270 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001391 ER PT J AU Suits, AG Liu, XH Gross, RL AF Suits, AG Liu, XH Gross, RL TI Imaging H abstraction dynamics with single photon ionization. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM arthur.suits@sunysb.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 163-PHYS BP U458 EP U458 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002340 ER PT J AU Sumpter, BG Noid, DW Hathorn, BC Goddard, WA AF Sumpter, BG Noid, DW Hathorn, BC Goddard, WA TI Normal and multibody modes in structured soft matter systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Comp & Math Div, Oak Ridge, TN 37831 USA. CALTECH, Mat & Proc Simulat Ctr, Pasadena, CA 91125 USA. EM sumpterbg@ornl.gov RI Sumpter, Bobby/C-9459-2013 OI Sumpter, Bobby/0000-0001-6341-0355 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 080-COMP BP U744 EP U744 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803411 ER PT J AU Sumpter, BG Noid, DW Mays, JW AF Sumpter, BG Noid, DW Mays, JW TI Molecular modeling of novel graft copolymers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Comp & Math Div, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. EM sumpterbg@ornl.gov RI Sumpter, Bobby/C-9459-2013 OI Sumpter, Bobby/0000-0001-6341-0355 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 215-PMSE BP U693 EP U693 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918003634 ER PT J AU Sutton, SR Newville, M Lanzirotti, A Rivers, M Eng, P AF Sutton, SR Newville, M Lanzirotti, A Rivers, M Eng, P TI Microscale environmental science studies using high energy synchrotron radiation SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Chicago, Consortium Adv Radiat Sci, Adv Photon Source, Dept Geophys Sci, Argonne, IL 60439 USA. Univ Chicago, Consortium Adv Radiat Sci, Adv Photon Source, GSECARS, Argonne, IL 60439 USA. EM sutton@cars.uchicago.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 244-ENVR BP U837 EP U837 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803955 ER PT J AU Szpunar, DE Butler, LJ Qi, F AF Szpunar, DE Butler, LJ Qi, F TI Photodissociation of acryloyl chloride excited at 193 nm. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Chicago, James Franck Inst, Chicago, IL 60637 USA. Univ Chicago, Dept Chem, Chicago, IL 60637 USA. Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA USA. EM deszpuna@uchicago.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 261-PHYS BP U471 EP U471 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002436 ER PT J AU Talley, CE Huser, TR Hollars, CW Lane, SM AF Talley, CE Huser, TR Hollars, CW Lane, SM TI Surface-enhanced Rman spectroscopy for localized sensing in biological systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Dept Chem & Mat Sci, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Dept Phys & Adv Technol, Livermore, CA USA. EM talley1@llnl.gov RI Huser, Thomas/H-1195-2012 OI Huser, Thomas/0000-0003-2348-7416 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 390-PHYS BP U506 EP U506 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002563 ER PT J AU Tandon, L Slemmons, AK Runde, W Montoya, VM Trujillo, LJ Field, SE Dave, AR AF Tandon, L Slemmons, AK Runde, W Montoya, VM Trujillo, LJ Field, SE Dave, AR TI Novel solid and liquid dosimetry systems. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. EM tandon@lanl.gov; vmontoya@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 56-NUCL BP U257 EP U257 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001312 ER PT J AU Tandon, L Slemmons, AK Blackadar, J LaVerne, JA Robertson, JD Schwarz, J Sanchez, AJ Hobart, DE AF Tandon, L Slemmons, AK Blackadar, J LaVerne, JA Robertson, JD Schwarz, J Sanchez, AJ Hobart, DE TI Microdosimetry studies of plutonium oxides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA. Univ Notre Dame, Notre Dame Radiat Lab, Notre Dame, IN 46556 USA. Univ Missouri, Dept Chem, Columbia, MO 65211 USA. Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. EM tandon@lanl.gov; aslemmons@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 46-NUCL BP U255 EP U255 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001302 ER PT J AU Tarasevich, BJ Chusuei, CC AF Tarasevich, BJ Chusuei, CC TI Calcium phosphate nucleation and growth onto self-assembled templates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Penn State Univ, University Pk, PA 16802 USA. Univ Missouri, Dept Chem, Rolla, MO 65401 USA. Pacific NW Natl Lab, Mat Chem Div, Richland, WA 99352 USA. EM barbara.tarasevich@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 555-COLL BP U693 EP U693 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803304 ER PT J AU Thundat, T AF Thundat, T TI Environmental monitoring using micromechanical sensors SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Life Sci, ORNL, Oak Ridge, TN 37831 USA. EM ugt@ornl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 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 PY 2003 VL 225 MA 250-ENVR BP U838 EP U838 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803961 ER PT J AU Thurnauer, MC AF Thurnauer, MC TI Success through diverse pathways. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. EM mariont@anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 0012-WCC BP U37 EP U37 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800101 ER PT J AU Tian, F Pei, JH Brown, GM Thundat, T AF Tian, F Pei, JH Brown, GM Thundat, T TI Investigation of the electrochemical potential-induced surface stress by metal-coated microcantilevers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN 37831 USA. EM tianf@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 534-COLL BP U690 EP U690 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803283 ER PT J AU Tian, ZGR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B AF Tian, ZGR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B TI Biomimetic syntheses of extended and oriented ZnO nanostructures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Sandia Natl Labs, Dept Biomol Mat & Interfaces, Albuquerque, NM 87185 USA. Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. EM zrtian@sandia.gov NR 0 TC 1 Z9 1 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 PY 2003 VL 225 MA 261-INOR BP U49 EP U49 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000258 ER PT J AU Tian, ZGR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B AF Tian, ZGR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B TI Large arrays of oriented nanowires: Generalized solution syntheses and applications. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Sandia Natl Labs, Dept Mol Mat & Interfaces, Albuquerque, NM 87185 USA. Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. EM zrtian@sandia.gov NR 0 TC 1 Z9 1 U1 0 U2 0 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 PY 2003 VL 225 MA 260-INOR BP U48 EP U49 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000257 ER PT J AU Tian, ZRR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B Matzke, CM AF Tian, ZRR Liu, J Voigt, JA Xu, HF McDermott, M McKenzie, B Matzke, CM TI Hierarchically growing, patterning, and aligning self-assembled nanostructured materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Sandia Natl Labs, Dept Biomol Mat & Interfaces, Albuquerque, NM 87185 USA. Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA. EM zrtian@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 715-INOR BP U136 EP U136 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000709 ER PT J AU Tretiak, S AF Tretiak, S TI Excited states and nonlinear optical response of conjugated molecules: A TDDFT study. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM serg@cnls.lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 127-COMP BP U752 EP U752 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803458 ER PT J AU Tripathi, A Medvedev, D Clearfield, A Celestian, AJ Parise, JB Nyman, M Hanson, J AF Tripathi, A Medvedev, D Clearfield, A Celestian, AJ Parise, JB Nyman, M Hanson, J TI In situ synchrotron X-ray structural studies of crystal growth and ion exchange in tunnel-type titanosilicates. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA. SUNY Stony Brook, Stony Brook, NY 11794 USA. Sandia Natl Labs, Livermore, CA 94550 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM atripathi@mail.chem.tamu.edu NR 0 TC 0 Z9 0 U1 1 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 PY 2003 VL 225 MA 543-INOR BP U93 EP U94 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000539 ER PT J AU Trivedi, P Sparks, D Dyer, JA Scrivner, N Pandya, K AF Trivedi, P Sparks, D Dyer, JA Scrivner, N Pandya, K TI Metal sorption onto hydrated iron oxides in anoxic environments: Role of Fe(II) ions, reaction time, and temperature. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Delaware, Dept Plant & Soil Sci, Newark, DE 19717 USA. DuPont Engn Technol, Wilmington, DE USA. Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. EM paras@udel.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 8-NUCL BP U250 EP U250 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001264 ER PT J AU Uddin, J Hay, BP AF Uddin, J Hay, BP TI Computer-aided design of receptors for tetravalent actinides. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Pacific NW Natl Lab, Mol Interact & Transformat Grp, Richland, WA 99352 USA. EM Jamal.Uddin@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 159-COMP BP U757 EP U757 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803490 ER PT J AU Vairavamurthy, M AF Vairavamurthy, M TI Chromium(VI) is reduced by sulfur nucleophiles and bacteria: Mechanistic studies using XANES spectroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Energy Sci & Technol, Upton, NY 11786 USA. EM vmurthy@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 22-NUCL BP U252 EP U252 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001278 ER PT J AU Valeev, EF Leininger, ML Janssen, CL Sherrill, CD AF Valeev, EF Leininger, ML Janssen, CL Sherrill, CD TI Toward the complete basis set limit: Massively parallel implementation of MP2-R12 methods. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Georgia Tech, Sch Chem & Biochem, Atlanta, GA 30332 USA. Sandia Natl Labs, Dept Comp Sci, Livermore, CA USA. EM edward.valeev@chemistry.gatech.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 250-PHYS BP U470 EP U470 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002425 ER PT J AU Van Berkel, GJ AF Van Berkel, GJ TI Electrochemistry of electrospray. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM vanberkelgj@ornl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 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 PY 2003 VL 225 MA anyl-221 BP U141 EP U141 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800627 ER PT J AU Van Hove, MA AF Van Hove, MA TI Surface structures of complex materials. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM vanhove@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 443-COLL BP U676 EP U676 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803192 ER PT J AU Van Stipdonk, MJ Hanna, DA Anbalagan, V Groenewold, GS Gresham, GL Morrison, JA AF Van Stipdonk, MJ Hanna, DA Anbalagan, V Groenewold, GS Gresham, GL Morrison, JA TI Gas-phase reactions of polyatomic species containing the uranyl ion SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Wichita State Univ, Dept Chem, Wichita, KS 67260 USA. Kansas Wesleyan Univ, Dept Chem, Salina, KS USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID USA. EM mike.vanstipdonk@wichita.edu NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 226-INOR BP U43 EP U44 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000223 ER PT J AU Vieira, DJ Bibeau, RA Hausmann, M Taylor, WA AF Vieira, DJ Bibeau, RA Hausmann, M Taylor, WA TI Collecting mass- and recoil-separated reactions products at RIA. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM vieira@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 141-NUCL BP U271 EP U271 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001397 ER PT J AU Vieira, DJ Hausmann, M Wu, JW Zhao, XX AF Vieira, DJ Hausmann, M Wu, JW Zhao, XX TI Fundamental symmetry measurements with trapped radioactive atoms at RIA. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM vieira@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 128-NUCL BP U269 EP U269 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001384 ER PT J AU Voter, AF AF Voter, AF TI Accelerated molecular dynamics methods SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM afv@lanl.gov NR 0 TC 0 Z9 0 U1 1 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 PY 2003 VL 225 MA 335 BP U784 EP U784 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803663 ER PT J AU Wan, JM Tokunaga, TK Larsen, JT Zheng, ZP AF Wan, JM Tokunaga, TK Larsen, JT Zheng, ZP TI Evolution of redox tank waste plumes in Hanford vadose zone: A conceptual model developed through reactive transport studies SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA. EM jmwan@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 242-ENVR BP U836 EP U836 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803953 ER PT J AU Wan, Q Liu, TB Burger, C Chu, B AF Wan, Q Liu, TB Burger, C Chu, B TI Synthesis and manipulation of polyoxomolybdate nanostructures. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM qwan@ic.sunysb.edu RI Liu, Tianbo/D-8915-2017 OI Liu, Tianbo/0000-0002-8181-1790 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 265-INOR BP U49 EP U49 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000262 ER PT J AU Wang, DH He, JB McCaughy, BF Hampsey, JE Ji, XL Jiang, YB Xu, HF Zhou, WLL Tang, JK Schmehl, R O'Connor, CJ Brinker, CJ Lu, YF AF Wang, DH He, JB McCaughy, BF Hampsey, JE Ji, XL Jiang, YB Xu, HF Zhou, WLL Tang, JK Schmehl, R O'Connor, CJ Brinker, CJ Lu, YF TI Templating synthesis of hierarchical nanowire and nanomesh thin films. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Tulane Univ, Dept Chem Engn, Lindy Boggs Ctr 300, New Orleans, LA 70118 USA. Tulane Univ, Coordinated Instrumentat Facil, New Orleans, LA 70118 USA. Univ New Mexico, Tranmiss Electron Microscopy Lab, Albuquerque, NM 87131 USA. Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA. Univ New Orleans, Dept Phys, New Orleans, LA 70148 USA. Tulane Univ, Dept Chem, New Orleans, LA 70118 USA. Univ New Orleans, Adv Mat Res Inst, New Orleans, LA 70148 USA. Sandia Natl Labs, Ctr Microengineered Mat, Livermore, CA 94550 USA. EM dwang2@tulane.edu RI Wang, Donghai/L-1150-2013 OI Wang, Donghai/0000-0001-7261-8510 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 PY 2003 VL 225 MA 718-INOR BP U136 EP U136 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000712 ER PT J AU Wang, LL Grindstaff, QG AF Wang, LL Grindstaff, QG TI Quantitative gas analysis by a quadrupole mass spectrometer. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM wangl@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 121-NUCL BP U268 EP U268 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001377 ER PT J AU Wang, R Yan, FN Chen, LH Reddy, CVG AF Wang, R Yan, FN Chen, LH Reddy, CVG TI Synthesis of a universal photolabile cross-linker and its application in AFM imaging SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 IIT, Dept Biol Chem & Phys Sci, Chicago, IL 60616 USA. Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. EM wangr@iit.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 553-ORGN BP U390 EP U390 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001957 ER PT J AU Wang, W Gu, BH AF Wang, W Gu, BH TI Preparation and surface modification of monodisperse submicrometer silica spheres for near infrared photonic crystals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM wangw@ornl.gov RI Wang, Wei/B-5924-2012 NR 0 TC 0 Z9 0 U1 2 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 PY 2003 VL 225 MA 404-PHYS BP U509 EP U509 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002577 ER PT J AU Wang, W Gu, BH AF Wang, W Gu, BH TI Fabrication of 2-D arrays of SiO2,TiO2, and ZrO2 nanoparticles. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. EM wangw@ornl.gov RI Wang, Wei/B-5924-2012 NR 0 TC 0 Z9 0 U1 2 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 PY 2003 VL 225 MA 255-INOR BP U48 EP U48 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918000252 ER PT J AU Wang, XP Krause, T Kumar, R AF Wang, XP Krause, T Kumar, R TI Sulfur removal from reformate. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Argonne Natl Lab, Div Chem Technol, Argonne, IL 60439 USA. EM wangx@cmt.anl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 26-PETR BP U426 EP U426 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002153 ER PT J AU Warner, JA Letain, TE Booth, CH Shuh, DK Nitsche, H AF Warner, JA Letain, TE Booth, CH Shuh, DK Nitsche, H TI EXAFS study of uranyl adsorption to bacteria. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. EM jawarner@lbl.gov RI Booth, Corwin/A-7877-2008 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 21-NUCL BP U252 EP U252 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001277 ER PT J AU Waychunas, GA Davis, JA Reitmeyer, R AF Waychunas, GA Davis, JA Reitmeyer, R TI Iron hydroxide nanoprecipitate formation and suppression on quartz surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Lab, Div Earth Sci, Berkeley, CA 94720 USA. US Geol Survey, Div Water Resources, Denver, CO USA. EM gawaychunas@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 194-GEOC BP U943 EP U943 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804399 ER PT J AU Wehlburg, CM Guenard, R Pell, R Melgaard, DK Haaland, DM AF Wehlburg, CM Guenard, R Pell, R Melgaard, DK Haaland, DM TI Alternative benchmark for calibration transfer of process analytical techniques. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Sandia Natl Labs, IDEA Dept, Albuquerque, NM 87123 USA. Dow Chem Co USA, Mol Struct, Midland, MI 48674 USA. Dow Chem Co USA, Modeling & Automat, Midland, MI 48674 USA. EM cmwehlb@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 273-ANYL BP U149 EP U150 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800679 ER PT J AU White, CM AF White, CM TI Initial set of working hypotheses concerning some chemical and physical events when CO2, is injected into a coalbed. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM curt.white@netl.doe.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 055-FUEL BP U851 EP U851 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804028 ER PT J AU White, MG Tan, M AF White, MG Tan, M TI VUV probes of photo-induced reactions on metal surfaces. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11715 USA. SUNY Stony Brook, Upton, NY 11715 USA. EM mgwhite@bnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 166-PHYS BP U458 EP U458 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002343 ER PT J AU Whitten, WB Xu, J Moxom, J Reilly, PTA Ramsey, JM AF Whitten, WB Xu, J Moxom, J Reilly, PTA Ramsey, JM TI Microscale gas-phase analysis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. EM whittenwb@ornl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 232-ANYL BP U143 EP U143 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800638 ER PT J AU Wilcoxon, JP AF Wilcoxon, JP TI Synthesis and application of nanosize semiconductors for photooxidation of toxic organic chemicals SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Sandia Natl Labs, Dept 1122, Albuquerque, NM 87185 USA. EM jpwilco@sandia.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 48 BP U959 EP U959 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804470 ER PT J AU Wilkinson, TJ Perry, DL Martin, MC McKinney, WR AF Wilkinson, TJ Perry, DL Martin, MC McKinney, WR TI Nondestructive forensic analysis of antique stamps by use of synchrotron radiation infrared spectromicroscopy. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM TJWilkinson@lbl.gov; DLPerry@lbl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 158-IEC BP U976 EP U976 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804578 ER PT J AU Wilkinson, TJ Perry, DL Martin, MC McKinney, WR AF Wilkinson, TJ Perry, DL Martin, MC McKinney, WR TI Using synchrotron radiation to chemically identify and characterize human latent fingerprints - A novel forensic approach. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM TJWilkinson@lbl.gov; DLPerry@lbl.gov NR 0 TC 3 Z9 3 U1 1 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 PY 2003 VL 225 MA 157-IEC BP U975 EP U976 PN 1 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804577 ER PT J AU Williams, SC Goh, SL Micheel, CM Zanchet, D Parak, WJ Gerion, D Alivisatos, AP AF Williams, SC Goh, SL Micheel, CM Zanchet, D Parak, WJ Gerion, D Alivisatos, AP TI Producing discrete and more complex nanoparticle arrangements using asymmetric branched DNA trimers. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RI Parak, Wolfgang J./M-3998-2014; Zanchet, Daniela/D-6566-2012 OI Parak, Wolfgang J./0000-0003-1672-6650; Zanchet, Daniela/0000-0003-1475-2548 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 56-PHYS BP U442 EP U442 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002238 ER PT J AU Williams, SKR Lee, H Wahl, KL Valentine, NB AF Williams, SKR Lee, H Wahl, KL Valentine, NB TI Analysis of whole bacterial cells by flow field-flow fractionation and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Colorado Sch Mines, Golden, CO 80401 USA. Pacific NW Natl Lab, Richland, WA USA. EM krwillia@mines.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 204-ANYL BP U139 EP U139 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917800610 ER PT J AU Wilson, RE Shaughnessy, DA Booth, CH Hu, YJ Wilk, PA Nitsche, H AF Wilson, RE Shaughnessy, DA Booth, CH Hu, YJ Wilk, PA Nitsche, H TI EXAFS studies of the interaction of Pu(VI)O(2)2+with goethite. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RI Wilson, Richard/H-1763-2011; Booth, Corwin/A-7877-2008 OI Wilson, Richard/0000-0001-8618-5680; 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 PY 2003 VL 225 MA 3-NUCL BP U249 EP U249 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001259 ER PT J AU Windus, TL Jurrus, ER Krishnan, M Nieplocha, J Janssen, CL Bernholdt, DE Mclnnes, LC Sarich, J Benson, S AF Windus, TL Jurrus, ER Krishnan, M Nieplocha, J Janssen, CL Bernholdt, DE Mclnnes, LC Sarich, J Benson, S TI Using the common component architecture in chemistry SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Argonne, IL 60439 USA. Sandia Natl Labs, Sci Comp Dept, Livermore, CA USA. Pacific NW Natl Lab, Mol Sci Software Grp, Richland, WA 99352 USA. EM theresa.windus@pnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 002-COMP BP U702 EP U702 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803334 ER PT J AU Wingo, RM Prenger, FC Johnson, MD Worl, LA Ying, TY AF Wingo, RM Prenger, FC Johnson, MD Worl, LA Ying, TY TI High gradient magnetic field-split flow fractionation of nanoscale paramagnetic particles. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Engn Sci & Applicat Div, ESA, EPE, Los Alamos, NM 87545 USA. New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA. EM wingo@lanl.gov 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 PY 2003 VL 225 MA 248-IEC BP U990 EP U990 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804667 ER PT J AU Wulzke, JL Fahlstrom, CA Cavinato, AG Wang, ZM Lin, MS Rasco, BA AF Wulzke, JL Fahlstrom, CA Cavinato, AG Wang, ZM Lin, MS Rasco, BA TI Investigation of near-infrared optical parameters in fish tissue by photon time-of-flight analysis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Eastern Oregon Univ, Dept Chem, La Grande, OR 97850 USA. Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA USA. Washington State Univ, Dept Food Sci & Human Nutr, Pullman, WA 99164 USA. EM wutzkej@eou.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 232-CHED BP U358 EP U358 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917801539 ER PT J AU Yang, WS Auciello, O Butler, JE Cai, W Carlisle, JA Gerbi, J Gruen, DM Knickerbocker, T Lasseter, TL Russell, JN Smith, LM Hamers, RJ AF Yang, WS Auciello, O Butler, JE Cai, W Carlisle, JA Gerbi, J Gruen, DM Knickerbocker, T Lasseter, TL Russell, JN Smith, LM Hamers, RJ TI Covalently-bonded adducts of biomolecules with diamond thin films: Synthesis, biochemical properties, and bioelectronic characterization SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Univ Wisconsin, Dept Chem, Madison, WI 53706 USA. Argonne Natl Lab, Div Sci Mat, Argonne, IL 60439 USA. USN, Res Lab, Washington, DC USA. EM wensha@chem.wisc.edu RI Butler, James/B-7965-2008; Hamers, Robert/C-6466-2008 OI Butler, James/0000-0002-4794-7176; Hamers, Robert/0000-0003-3821-9625 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 34 BP U612 EP U612 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917802785 ER PT J AU Ying, TY Prenger, FC Worl, LA Johnson, MD Wingo, RM AF Ying, TY Prenger, FC Worl, LA Johnson, MD Wingo, RM TI Selective separation of ultrafine particles by magnetophoresis. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, ESA, AET, Engn Sci & Applicat Div, Los Alamos, NM 87545 USA. New Mexico State Univ, Dept Chem & Biochem, Las Cruces, NM 88003 USA. EM tying@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 226-IEC BP U986 EP U986 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804645 ER PT J AU Yoon, SJ Jones, KW Lanzirotti, A Feng, HE Um, W Serne, RJ Karthikeyan, KG Bleam, WF AF Yoon, SJ Jones, KW Lanzirotti, A Feng, HE Um, W Serne, RJ Karthikeyan, KG Bleam, WF TI X-ray microtomography study of metal distribution in sediments related to pore structure modification by mineral dissolution and neophase formation under extremely alkaline conditions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Brookhaven Natl Lab, Dept Environm Sci, Upton, NY 11973 USA. Univ Chicago, Chicago, IL 60637 USA. Montclair State Univ, Montclair, NJ 07043 USA. Pacific NW Natl Lab, Richland, WA USA. Univ Wisconsin, Dept Biol Syst Engn, Madison, WI USA. EM syoon@bnl.gov NR 0 TC 1 Z9 1 U1 0 U2 0 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 PY 2003 VL 225 MA 48-NUCL BP U256 EP U256 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918001304 ER PT J AU You, H AF You, H TI X-ray surface scattering study of Pt(111)/CO/acidic solution interface. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Argonne Natl Lab, Div Sci Mat, Argonne, IL 60563 USA. EM hyou@anl.gov RI You, Hoydoo/A-6201-2011 OI You, Hoydoo/0000-0003-2996-9483 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 488-COLL BP U683 EP U683 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803237 ER PT J AU Young, JS Espinoza, BF Berchtold, KA Long, GD Jarvinen, GD Jorgensen, BS Orme, CJ Onorato, F AF Young, JS Espinoza, BF Berchtold, KA Long, GD Jarvinen, GD Jorgensen, BS Orme, CJ Onorato, F TI High temperature CO2 separations using polymeric-metallic composite membranes SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA. Univ Colorado, Dept Mech Engn, Idaho Natl Engn & Environm Lab, Boulder, CO 80309 USA. EM jyoung@lanl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 27 BP U956 EP U956 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917804449 ER PT J AU Yu, HG AF Yu, HG TI Two-layer Lanczos iterative diagonalization. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Brookhaven Natl Lab, Upton, NY 11973 USA. EM hgy@bnl.gov RI Yu, Hua-Gen/N-7339-2015 NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 67-PHYS BP U444 EP U444 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002249 ER PT J AU Yu, ZH O'connor, DB Barbara, PF Li, JB Wang, LW AF Yu, ZH O'connor, DB Barbara, PF Li, JB Wang, LW TI Dark excitons in CdS nanocrystals. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. EM z.yu@mail.utexas.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 197-PHYS BP U462 EP U463 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002373 ER PT J AU Zaug, JM Goncharov, AF Fried, LE Hansen, DW AF Zaug, JM Goncharov, AF Fried, LE Hansen, DW TI High pressure super critical fluid reactions. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Lawrence Livermore Natl Lab, Chem & Mat Sci AD, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, CMS, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Energet Mat Ctr, Livermore, CA USA. EM zaug1@llnl.gov RI Fried, Laurence/L-8714-2014 OI Fried, Laurence/0000-0002-9437-7700 NR 0 TC 0 Z9 0 U1 0 U2 1 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 PY 2003 VL 225 MA 359-PHYS BP U486 EP U486 PN 2 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002534 ER PT J AU Zhang, M AF Zhang, M TI Engineering zymomonas mobilis for efficient ethanol production from lignocellulosic feedstocks. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Natl Bioenergy Ctr, Natl Renewable Energy Lab, Biotechnol Div Fuels & Chem, Golden, CO 80401 USA. EM min_zhang@nrel.gov NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 29-CELL BP U272 EP U272 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917801171 ER PT J AU Zhang, YZ Granite, EJ Maroto-Valer, MM Tang, Z AF Zhang, YZ Granite, EJ Maroto-Valer, MM Tang, Z TI Activated carbons produced from unburned carbon in fly ash and their application for mercury capture SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LA SP Amer Chem Soc C1 Penn State Univ, Energy Inst, University Pk, PA 16802 USA. Natl Energy Technol Lab, Dept Energy, Morgantown, WV USA. EM yoz1@psu.edu NR 0 TC 1 Z9 1 U1 0 U2 1 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 PY 2003 VL 225 MA 015-FUEL BP U845 EP U845 PN 1 PG 1 WC Chemistry, Multidisciplinary SC Chemistry GA 761PU UT WOS:000187917803988 ER PT J AU Zheng, SJ Thompson, JD Khan, SL Rubin, Y AF Zheng, SJ Thompson, JD Khan, SL Rubin, Y TI Synthesis and magnetic properties of the perchloro-2,5,8-triazaphenalenyl radical and its dimer. SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract CT 225th National Meeting of the American-Chemical-Society CY MAR 23-27, 2003 CL NEW ORLEANS, LOUISIANA SP Amer Chem Soc C1 Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM rubin@chem.ucla.edu NR 0 TC 0 Z9 0 U1 0 U2 0 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 PY 2003 VL 225 MA 641-ORGN BP U405 EP U406 PN 2 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA 761PW UT WOS:000187918002044 ER PT J AU Rupp, B AF Rupp, B TI High-throughput crystallography at an affordable cost: The TB Structural Genomics Consortium Crystallization Facility SO ACCOUNTS OF CHEMICAL RESEARCH LA English DT Review ID MOLECULAR REPLACEMENT; PROTEIN CRYSTALLIZATION; MAXIMUM-LIKELIHOOD; DATABASE; MODELS; SEARCH AB The crystallization facility of the TB Structural Genomics Consortium, one of nine P50 structural genomics centers sponsored by the National Institutes of Health, provides TB consortium members with automated crystallization, data collection, and basic molecular replacement structure solution up to bias-minimized maps. In contrast to venture capital -funded commercial enterprises, the TB consortium facilities are decentralized and aim to develop high-throughput crystallography methods and automation on a comparatively small budget. In addition to financial constraints, the logistics and organization of a production environment differ considerably from academic settings. The TB Structural Genomics Consortium crystallization facility may thus provide a model for cost-effective, efficient high-throughput crystallography. Processes and methods presented in this review should assist academic institutions planning to invest in high-throughput structural biology to assess both the rewards and risks of establishing structural genomics programs. C1 Lawrence Livermore Natl Lab, Macromol Crystallog & TB Struct Genom Consortium, Livermore, CA 94551 USA. RP Rupp, B (reprint author), Lawrence Livermore Natl Lab, Macromol Crystallog & TB Struct Genom Consortium, Livermore, CA 94551 USA. EM br@llnl.gov FU NIGMS NIH HHS [P50 GM62410] NR 42 TC 52 Z9 56 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0001-4842 J9 ACCOUNTS CHEM RES JI Accounts Chem. Res. PD MAR PY 2003 VL 36 IS 3 BP 173 EP 181 DI 10.1021/ar020021t PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA 658DT UT WOS:000181706900004 PM 12641474 ER PT J AU Gertz, EM Wright, SJ AF Gertz, EM Wright, SJ TI Object-oriented software for quadratic programming SO ACM TRANSACTIONS ON MATHEMATICAL SOFTWARE LA English DT Article DE algorithms; design; quadratic programming; object-oriented software; interior-point methods ID HERMITIAN LINEAR-SYSTEMS AB The object-oriented software package OOQP for solving convex quadratic programming problems (QP) is described. The primal-dual interior point algorithms supplied by OOQP are implemented in a way that is largely independent of the problem structure. Users may exploit problem structure by supplying linear algebra, problem data, and variable classes that are customized to their particular applications. The OOQP distribution contains default implementations that solve several important QP problem types, including general sparse and dense QPs, bound-constrained QPs, and QPs arising from support vector machines and Huber regression. The implementations supplied with the OOQP distribution are based on such well known linear algebra packages as MA27/57, LAPACK, and PETSc. OOQP demonstrates the usefulness of object-oriented design in optimization software development, and establishes standards that can be followed in the design of software packages for other classes of optimization problems. A number of the classes in OOQP may also be reusable directly in other codes. C1 Univ Wisconsin, Dept Comp Sci, Madison, WI 53706 USA. RP Gertz, EM (reprint author), Argonne Natl Lab, Div Math & Comp Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM gertz@mcs.anl.gov; swright@cs.wisc.edu OI Gertz, E. Michael/0000-0001-8390-4387 NR 28 TC 83 Z9 83 U1 0 U2 3 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036 USA SN 0098-3500 J9 ACM T MATH SOFTWARE JI ACM Trans. Math. Softw. PD MAR PY 2003 VL 29 IS 1 BP 58 EP 81 DI 10.1145/641876.641880 PG 24 WC Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA 660CB UT WOS:000181815300004 ER PT J AU He, H Marchesini, S Howells, M Weierstall, U Hembree, G Spence, JCH AF He, H Marchesini, S Howells, M Weierstall, U Hembree, G Spence, JCH TI Experimental lensless soft-X-ray imaging using iterative algorithms: phasing diffuse scattering SO ACTA CRYSTALLOGRAPHICA SECTION A LA English DT Article ID DIFFRACTION; RETRIEVAL; CRYSTALLOGRAPHY; RECONSTRUCTION; MICROSCOPE; RESOLUTION; SUPPORT; OBJECT; IMAGES AB Images of randomly placed two-dimensional arrays of gold balls have been reconstructed from their soft-X-ray transmission diffraction patterns. An iterative hybrid input-output (HiO) algorithm was used to solve the phase problem for the continuous distribution of diffuse X-ray scattering. Knowledge of the approximate size of the clusters was required. The images compare well with scanning electron microscope (SEM) images of the same sample. The use of micrometre-sized silicon nitride window supports is suggested, and absorption filters have been used to allow collection of low spatial frequencies often obscured by a beam stop. This method of phasing diffuse scattering may have application to scattering from individual inorganic nanostructures or single macromolecules. C1 Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RP Spence, JCH (reprint author), Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA. RI Marchesini, Stefano/A-6795-2009; Weierstall, Uwe/B-3568-2011 NR 28 TC 39 Z9 40 U1 0 U2 3 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0108-7673 J9 ACTA CRYSTALLOGR A JI Acta Crystallogr. Sect. A PD MAR PY 2003 VL 59 BP 143 EP 152 DI 10.1107/S0108767302022511 PN 2 PG 10 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 656LV UT WOS:000181610000006 PM 12604853 ER PT J AU Geiser, U Schlueter, JA AF Geiser, U Schlueter, JA TI KMnAg3(CN)(6), a new triply interpenetrating network solid SO ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS LA English DT Article ID CRYSTAL-STRUCTURE; NETS AB The single-crystal structure of potassium manganese tris[dicyanoargentate(I)], KMnAg3(CN)(6), is described. This is the first Mn-containing example of the triply interpenetrating MAg3(CN)(6) type. The K+ ion is found to be located in an ordered manner on one of two possible interstitial sites, leading to a chiral space group. C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA. RP Geiser, U (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM ugeiser@anl.gov NR 16 TC 11 Z9 11 U1 0 U2 6 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0108-2701 J9 ACTA CRYSTALLOGR C JI Acta Crystallogr. Sect. C-Cryst. Struct. Commun. PD MAR PY 2003 VL 59 BP I21 EP I23 DI 10.1107/S0108270103001264 PN 3 PG 3 WC Chemistry, Multidisciplinary; Crystallography SC Chemistry; Crystallography GA 653TG UT WOS:000181452700001 PM 12711759 ER PT J AU Banumathi, S Dauter, M Dauter, Z AF Banumathi, S Dauter, M Dauter, Z TI Phasing at high resolution using Ta6Br12 cluster SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID ANGSTROM RESOLUTION; ISOMORPHOUS REPLACEMENT; PROTEIN CRYSTALLOGRAPHY; REFINEMENT; ASSEMBLIES; ENZYME AB The Ta6Br122+ cluster compound is known to be a powerful reagent for derivatization of crystals of large macromolecules at low resolution. The cluster is a regular octahedron of six Ta atoms with 12 bridging Br atoms at the edges of the octahedron. The cluster is compact, of approximately spherical shape, with a radius of about 6 Angstrom. Both tantalum and bromine display a significant anomalous diffraction signal at their absorption edges at 1.25 and 0.92 Angstrom, respectively. At resolutions lower than 5 Angstrom the tantalum cluster behaves as a super-atom and provides very large isomorphous and anomalous signals, which significantly diminish at about 4 Angstrom. However, beyond 3 Angstrom the individual Ta atoms can be resolved and the phasing power of the cluster increases again. The Ta6Br122+ cluster has been used for phasing four different proteins at high resolution. Ta6Br122+ appeared to be a mild derivatization reagent and, despite partial incorporation, led to a successful solution of crystal structures by the single-wavelength anomalous diffraction (SAD) approach. C1 SAIC Frederick Inc, Basic Res Program, Brookhaven Natl Lab, Upton, NY 11973 USA. NCI, Synchrotron Radiat Res Sect, Ctr Macromol Crystallog, Brookhaven Natl Lab, Upton, NY 11973 USA. RP Dauter, Z (reprint author), SAIC Frederick Inc, Basic Res Program, Brookhaven Natl Lab, Bldg 725A-X9, Upton, NY 11973 USA. NR 25 TC 17 Z9 17 U1 0 U2 1 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD MAR PY 2003 VL 59 BP 492 EP 498 DI 10.1107/S0907444903000064 PN 3 PG 7 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 656LT UT WOS:000181609800011 PM 12595706 ER PT J AU Kim, MH Derewenda, U Devedjiev, Y Dauter, Z Derewenda, ZS AF Kim, MH Derewenda, U Devedjiev, Y Dauter, Z Derewenda, ZS TI Purification and crystallization of the N-terminal domain from the human doublecortin-like kinase SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID MICROTUBULE-ASSOCIATED PROTEIN; LISSENCEPHALY SYNDROME; NEURONAL MIGRATION; GENE; MUTATIONS; HETEROTOPIA; EXPRESSION; ENCODES; SUBUNIT; LIS1 AB The unique doublecortin-like tandem of two homologous domains is found in certain microtubule-associated proteins such as doublecortin (DCX) and doublecortin-like kinase (DCLK). It is responsible for interactions with tubulin/microtubules and regulates microtubule dynamics. Here, the expression and purification of the tandem from human DCLK (residues 49-280) and of the isolated domains (residues 49-154 and 176-280) and the successful crystallization of the N-terminal domain (N-DCLK) are reported. High-quality wildtype crystals were obtained and a complete native data set was collected to 1.5 Angstrom resolution. The crystals belong to space group C2, with unit-cell parameters a = 85.98, b = 29.62, c = 40.33 Angstrom, beta = 101.3degrees. Crystals of SeMet-substituted N-DCLK (Leu120Met) were also obtained, but they exhibit the symmetry of space group P2(1), with unit-cell parameters a = 38.81, b = 29.43, c = 40.1 Angstrom, beta = 115.7degrees. C1 Univ Virginia, Dept Mol Physiol & Biol Phys, Charlottesville, VA 22908 USA. Univ Virginia, Ctr Canc, Charlottesville, VA 22908 USA. NCI, Synchrotron Radiat Res Sect, Macromol Crystallog Lab, Brookhaven Natl Lab, Upton, NY 11973 USA. RP Derewenda, ZS (reprint author), Univ Virginia, Dept Mol Physiol & Biol Phys, POB 800736, Charlottesville, VA 22908 USA. FU NINDS NIH HHS [NS36267] NR 18 TC 3 Z9 4 U1 0 U2 1 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD MAR PY 2003 VL 59 BP 502 EP 505 DI 10.1107/S0907444903000027 PN 3 PG 4 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 656LT UT WOS:000181609800013 PM 12595708 ER PT J AU Aono, S Hartsch, T Schulze-Gahmen, U AF Aono, S Hartsch, T Schulze-Gahmen, U TI Crystallization of a member of the recFOR DNA repair pathway, RecO, with and without bound oligonucleotide SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID ESCHERICHIA-COLI; RECOMBINATION AB RecFOR proteins are important for DNA repair by homologous recombination in bacteria. The RecO protein from Thermus thermophilus was cloned and purified, and its binding to oligonucleotides was characterized. The protein was crystallized alone and in complex with a 14-mer oligonucleotide. Both crystal forms grow under different crystallization conditions in the same space group, P3(1)21 or P3(2)21, with almost identical unit-cell parameters. Complete data sets were collected to 2.8 and 2.5 Angstrom for RecO alone and for the RecO-oligonucleotide complex, respectively. Visual comparison of the diffraction patterns between the two crystal forms and calculation of an R-merge of 33.9% on F indicate that one of the crystal forms is indeed a complex of RecO with bound oligonucleotide. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. Univ Gottingen, Gottingen Genom Lab, D-3400 Gottingen, Germany. RP Schulze-Gahmen, U (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA. NR 10 TC 6 Z9 6 U1 0 U2 1 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD MAR PY 2003 VL 59 BP 576 EP 579 DI 10.1107/S0907444903000428 PN 3 PG 4 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 656LT UT WOS:000181609800036 PM 12595731 ER PT J AU Paaventhan, P Joseph, JS Nirthanan, S Rajaseger, G Gopalakrishnakone, P Kini, MR Kolatkar, PR AF Paaventhan, P Joseph, JS Nirthanan, S Rajaseger, G Gopalakrishnakone, P Kini, MR Kolatkar, PR TI Crystallization and preliminary X-ray analysis of candoxin, a novel reversible neurotoxin from the Malayan krait Bungarus candidus SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY LA English DT Article ID NICOTINIC ACETYLCHOLINE-RECEPTORS; BLACK MAMBA VENOM; MOLECULAR REPLACEMENT; CALCIUM-CHANNEL; TOXIN; ANTAGONIST; ALPHA-7; NMR; PROTEINS; BUCANDIN AB Candoxin, a novel three-finger toxin from Bungarus candidus, is a reversible antagonist of muscle (alphabetagammadelta) but a poorly reversible antagonist of neuronal alpha7 nicotinic acetylcholine receptors. It has a molecular weight of 7344 Da, with 66 amino-acid residues including ten half-cystines. The fifth disulfide bridge is located at the tip of loop I (Cys6-Cys11) instead of in loop II as found in other alpha-neurotoxins. Interestingly, candoxin lacks the segment cyclized by the fifth disulfide bridge at the tip of the middle loop of long-chain neurotoxins, which was reported to be critical for binding to alpha7 receptors. As a first step to determining its three-dimensional structure, candoxin was crystallized by the hanging-drop vapour-diffusion technique in conditions around 1.5 M sodium chloride, 10%(v/v) ethanol. The crystals formed belonged to the hexagonal system, space group P6(2)22, with unit-cell parameters a = 54.88, b = 54.88, c = 75.54 Angstrom, alpha = beta = 90, = 120degrees, and diffract to a resolution of 1.80 Angstrom. The crystallographic asymmetric unit contains one molecule of candoxin, with an estimated solvent content of 44.6%. Attempts to solve these structures by molecular-replacement methods have not been successful and a heavy-atom derivative search has been initiated. C1 Genome Inst Singapore, Singapore, Singapore. Natl Univ Singapore, Dept Anat, Singapore 117548, Singapore. Harvard Univ, Sch Med, Dept Neurobiol, Cambridge, MA 02138 USA. Def Med Res Inst, Singapore, Singapore. Natl Univ Singapore, Dept Biol Sci, Singapore 117548, Singapore. Virginia Commonwealth Univ, Med Coll Virginia, Dept Biochem & Mol Biophys, Richmond, VA 23284 USA. Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. RP Kolatkar, PR (reprint author), Genome Inst Singapore, Singapore, Singapore. EM gisprk@nus.edu.sg RI Kini, Manjunatha/H-8029-2012; OI kolatkar, prasanna/0000-0003-4970-5944 NR 24 TC 2 Z9 3 U1 0 U2 2 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0907-4449 J9 ACTA CRYSTALLOGR D JI Acta Crystallogr. Sect. D-Biol. Crystallogr. PD MAR PY 2003 VL 59 BP 584 EP 586 DI 10.1107/S0907444903001094 PN 3 PG 3 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Biophysics; Crystallography SC Biochemistry & Molecular Biology; Biophysics; Crystallography GA 656LT UT WOS:000181609800038 PM 12595733 ER PT J AU Hoffman, DC AF Hoffman, DC TI Professor Adam Sobiczewski: Seminal contributions to understanding and predicting nuclear stability of the heaviest elements SO ACTA PHYSICA POLONICA B LA English DT Biographical-Item AB Throughout his long career Adam Sobiczewski has made major contributions to the interpretation and understanding of experimental results on the synthesis and decay properties of the heaviest nuclei and to the development of theoretical methods for predicting properties of as yet undiscovered nuclei. He led the way in using a dynamical approach to macroscopic-microscopic calculations of spontaneous fission half-lives of deformed nuclei in a multi-dimensional deformation space without adjustable parameters. Examination of the well-deformed even-even nuclei with Z=104-114 and N=142-176 showed that inclusion of higher order deformations greatly increased the N=162 shell correction. Nuclei in the region of the doubly magic deformed nucleus (270)108 were predicted to be much more stable than previously believed and significant deviations from the old rule of rapidly decreasing spontaneous-fission half-lives with increasing Z should occur. The impact and influence of these results on experimental investigations and the interactions between theory and experiment will be discussed. C1 Univ Calif Berkeley, Dept Chem, Seaborg Inst Transactinium Sci, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Chem, Div Nucl Sci, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Hoffman, DC (reprint author), Univ Calif Berkeley, Dept Chem, Seaborg Inst Transactinium Sci, Lawrence Berkeley Natl Lab, MS 70R0319, Berkeley, CA 94720 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS PI KRAKOW PA REYMONTA 4, 30-059 KRAKOW, POLAND SN 0587-4254 J9 ACTA PHYS POL B JI Acta Phys. Pol. B PD MAR PY 2003 VL 34 IS 3 BP 1639 EP + PG 12 WC Physics, Multidisciplinary SC Physics GA 663PX UT WOS:000182014900001 ER PT J AU Swiatecki, WJ AF Swiatecki, WJ TI On nuclear molecules built up from Sn-132 components SO ACTA PHYSICA POLONICA B LA English DT Article ID FISSION-BARRIERS AB The possible existence of nuclear quasi-molecules built up from Sn-132 components is investigated. The crucial question is whether the extra stability of the doubly magic Sn-132 nuclei makes them sufficiently rigid to be able to withstand the strains imposed by their mutual interactions. It is argued that if the simplest quasi-molecular dumbbell configuration were found to be (meta-)stable, then triangular and even tetrahedral structures might have comparable barriers against disintegration and comparable spontaneous fission lifetimes. These are estimated using simplifying assumptions. As regards the dumbbell's stability, one may relate this to the existence of a potential energy pocket in the deformation energy landscape of a fissioning Fm-264 nucleus, and to the presence of 'bimodal' fission in heavy Fm isotopes. Further experimental and theoretical studies of such systems may be relevant for answering the question concerning nuclear quasi-molecules. C1 Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. RP Swiatecki, WJ (reprint author), Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. NR 15 TC 0 Z9 0 U1 0 U2 0 PU ACTA PHYSICA POLONICA B, JAGELLONIAN UNIV, INST PHYSICS PI KRAKOW PA REYMONTA 4, 30-059 KRAKOW, POLAND SN 0587-4254 J9 ACTA PHYS POL B JI Acta Phys. Pol. B PD MAR PY 2003 VL 34 IS 3 BP 1901 EP 1908 PG 8 WC Physics, Multidisciplinary SC Physics GA 663PX UT WOS:000182014900016 ER PT J AU Peles, JD Rhodes, OE Smith, MH AF Peles, JD Rhodes, OE Smith, MH TI Spermatozoan numbers and characteristics of associated organs in male white-tailed deer during the breeding season SO ACTA THERIOLOGICA LA English DT Article DE Odocoileus virginianus; reproductive characteristics; spermatozoa; testes; epididymes ID DAMA-DAMA; PROLACTIN; PLASMA; FSH; LH AB Short-term changes in testicular spermatozoa, testes weight, testes length, epididymes weight, epididymal spermatozoa, and body weight of adult and yearling male white-tailed deer Odocoileus virginianus (Zimmermann, 1780) were examined over a 9-week period that included the peak of the breeding season in South Carolina. Mean values for all characteristics were significantly greater in adults compared to yearlings. Values for reproductive characteristics tended to be highest during the last week in October or the first week in November and decreased over the course of the investigation. Body weight of adults decreased from late October through early December, whereas body weight of yearlings fluctuated only slightly throughout the 9-week period. Significant correlations were observed among all reproductive characteristics and body weight was highly correlated with all characteristics except testicular spermatozoa. Values for reproductive characteristics differed significantly between the right and left sides of the reproductive tracts. Results demonstrate the occurrence of short-term changes in reproductive capabilities of white-tailed deer that are relevant for the development of management strategies for this species. C1 Penn State Univ, Mckeesport, PA 15132 USA. Purdue Univ, Dept Forestry & Nat Resources, W Lafayette, IN 47907 USA. Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Peles, JD (reprint author), Penn State Univ, 4000 Univ Dr, Mckeesport, PA 15132 USA. NR 20 TC 1 Z9 1 U1 0 U2 2 PU POLISH ACAD SCIENCES PI BIALOWIEZA PA MAMMAL RESEARCH INST, 17-230 BIALOWIEZA, POLAND SN 0001-7051 J9 ACTA THERIOL JI Acta Theriol. PD MAR PY 2003 VL 48 IS 1 BP 123 EP 130 DI 10.1007/BF03194272 PG 8 WC Zoology SC Zoology GA 665AJ UT WOS:000182097200012 ER PT J AU Laskin, A Iedema, MJ Cowin, JP AF Laskin, A Iedema, MJ Cowin, JP TI Time-resolved aerosol collector for CCSEM/EDX single-particle analysis SO AEROSOL SCIENCE AND TECHNOLOGY LA English DT Article ID X-RAY-MICROANALYSIS; HETEROGENEOUS CHEMISTRY; WINDOW EPMA; KOREA AB An automated Time-Resolved Aerosol Collector (TRAC) has been developed for sequential sampling of field-collected aerosols for laboratory-based Computer Controlled Scanning Electron Microscopy/Energy Dispersed X-ray (CCSEM/EDX) single-particle analysis. The collector is optimized for the use of grid-supported 50 nm carbon films as deposition substrates. The carbon films have low enough X-ray background to permit EDX analysis down to 0.1-0.2 mum particles, including detection of low-Z elements: C, N, and O. The TRAC provides unattended sampling onto a set of 151 individual grids, at sequential time intervals as short as 1 min. After collection, the samples are sealed and refrigerated pending analysis. The utility of the TRAC-CCSEM/EDX approach is exemplified using the aerosol samples collected during the Texas 2000 Air Quality Study (August 15-September 15, 2000). We are able to follow the time evolution in the relative contribution of nonvolatile particles such as ammonium sulfate, mineral dust, sea salt, and carbonaceous in the aerosol makeup. The results show, among other things, the diurnal cycles in appearance of fine carbonaceous and ammonium sulfate particles and substantial mixing/coating of mineral particles with ammonium sulfates. C1 Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, Richland, WA 99352 USA. RP Laskin, A (reprint author), Pacific NW Natl Lab, William R Wiley Environm Mol Sci Lab, POB 999,MSIN K8-88, Richland, WA 99352 USA. RI Laskin, Alexander/I-2574-2012 OI Laskin, Alexander/0000-0002-7836-8417 NR 33 TC 40 Z9 41 U1 2 U2 21 PU TAYLOR & FRANCIS INC PI PHILADELPHIA PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA SN 0278-6826 J9 AEROSOL SCI TECH JI Aerosol Sci. Technol. PD MAR PY 2003 VL 37 IS 3 BP 246 EP 260 DI 10.1080/02786820390125106 PG 15 WC Engineering, Chemical; Engineering, Mechanical; Environmental Sciences; Meteorology & Atmospheric Sciences SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 641CF UT WOS:000180726300005 ER PT J AU Yew, BG Drumm, EC Guiochon, G AF Yew, BG Drumm, EC Guiochon, G TI Mechanics of column beds: I. Acquisition of the relevant parameters SO AICHE JOURNAL LA English DT Article ID DYNAMIC AXIAL-COMPRESSION; CHROMATOGRAPHIC COLUMNS; LIQUID-CHROMATOGRAPHY; PACKING MATERIALS; RADIAL-DISTRIBUTION; FLOW VELOCITY; CONSOLIDATION; EFFICIENCY; SOLIDS; HOMOGENEITY AB The efficiency of chromatographic columns is adversely affected by large-scale radial variations of the packing density or void ratio of the material used to prepare the bed. This heterogeneity is due to wall friction effects that take place during the preparation of the column and to seepage effects operating during the packing process and the subsequent operation of the column. The dependence of the bed's void fraction on the stress applied during its consolidation was determined, as well as its permeability at various stages of the consolidation process and the coefficient of friction between typical packing materials and the stainless steel wall of chromatographic columns. These results are required to develop and use numerical models of the volumetric response to axial compression of the bed and models of the coupled mechanical-seepage rheology of particulate materials. C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. RP Guiochon, G (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. OI Drumm, Eric/0000-0001-9491-0934 NR 50 TC 18 Z9 19 U1 0 U2 7 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 3 PARK AVE, NEW YORK, NY 10016-5901 USA SN 0001-1541 J9 AICHE J JI AICHE J. PD MAR PY 2003 VL 49 IS 3 BP 626 EP 641 DI 10.1002/aic.690490309 PG 16 WC Engineering, Chemical SC Engineering GA 654ZA UT WOS:000181525800008 ER PT J AU Yew, BG Ureta, J Shalliker, RA Drumm, EC Guiochon, G AF Yew, BG Ureta, J Shalliker, RA Drumm, EC Guiochon, G TI Mechanics of column beds: II. Modeling of coupled stress-strain-flow behavior SO AICHE JOURNAL LA English DT Article ID DYNAMIC AXIAL-COMPRESSION; LIQUID-CHROMATOGRAPHY; PACKING MATERIALS; WALL FRICTION; VISUALIZATION; CONSOLIDATION; DISPERSION; DIAMETER AB The rheological behavior of a bed of packing material during its consolidation was investigated using an elastic-plastic model, the Frictional Material Model. This model takes into account the behavior of the packing material under compression stress, its consolidation, its internal friction, its fiction against the column wall, and the dependence of the bed's permeability on the local void fraction. The complexity of the problem arises from the nonlinear behavior of the relationships between the critical parameters controlling the column bed behavior and the external stresses applied to this bed. Solutions of the model were calculated for combinations of axial compression and seepage stresses, the latter corresponding to the flow of the mobile-phase stream under typical conditions used in HPLC The results demonstrate the importance of the internal angle of friction of the packing material used on the degree of radial and axial heterogeneity of the beds of chromatographic columns packed with this material. C1 Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN 37996 USA. Univ Western Sydney, Ctr Biostruct & Biomol Res, Richmond, NSW 1797, Australia. RP Guiochon, G (reprint author), Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. OI Drumm, Eric/0000-0001-9491-0934 NR 41 TC 51 Z9 52 U1 0 U2 9 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 3 PARK AVE, NEW YORK, NY 10016-5901 USA SN 0001-1541 J9 AICHE J JI AICHE J. PD MAR PY 2003 VL 49 IS 3 BP 642 EP 664 DI 10.1002/aic.690490310 PG 23 WC Engineering, Chemical SC Engineering GA 654ZA UT WOS:000181525800009 ER PT J AU Yeung, E AF Yeung, E TI Big science versus small science SO ANALYTICAL CHEMISTRY LA English DT Editorial Material C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA. RP Yeung, E (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA. NR 0 TC 0 Z9 0 U1 0 U2 1 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 MAR 1 PY 2003 VL 75 IS 5 BP 85A EP 85A PG 1 WC Chemistry, Analytical SC Chemistry GA 650JE UT WOS:000181259300001 ER PT J AU Petritis, K Kangas, LJ Ferguson, PL Anderson, GA Pasa-Tolic, L Lipton, MS Auberry, KJ Strittmatter, EF Shen, YF Zhao, R Smith, RD AF Petritis, K Kangas, LJ Ferguson, PL Anderson, GA Pasa-Tolic, L Lipton, MS Auberry, KJ Strittmatter, EF Shen, YF Zhao, R Smith, RD TI Use of artificial neural networks for the accurate prediction of peptide liquid chromatography elution times in proteome analyses SO ANALYTICAL CHEMISTRY LA English DT Article ID REVERSED-PHASE CHROMATOGRAPHY; FTICR MASS-SPECTROMETRY; RETENTION TIMES; GEL-ELECTROPHORESIS; SYNTHETIC PEPTIDES; HELICAL PEPTIDES; AMINO-ACIDS; BEHAVIOR; COEFFICIENTS; COLUMNS AB The use of artificial neural networks (ANNs) is described for predicting the reversed-phase liquid chromatography retention times of peptides enzymatically digested from proteome-wide proteins. To enable the accurate comparison of the numerous LC/MS data sets, a genetic algorithm was developed to normalize the peptide retention data into a range (from 0 to 1), improving the peptide elution time reproducibility to similar to1%. The network developed in this study was based on amino acid residue composition and consists of 20 input nodes, 2 hidden nodes, and 1 output node. A data set of similar to7000 confidendy identified peptides from the microorganism Deinococcus radiodurans was used for the training of the ANN. The ANN was then used to predict the elution times for another set of 5200 peptides tentatively identified by MS/MS from a different microorganism (Shewanella oneidensis). The model was found to predict the elution times of peptides with up to 54 amino acid residues (the longest peptide identified after tryptic digestion of S. oneidensis) with an average accuracy of similar to3%. This predictive capability was then used to distinguish with high confidence isobar peptides otherwise indistinguishable by accurate mass measurements as well as to uncover peptide misidentifications. Thus, integration of ANN peptide elution time prediction in the proteomic research will increase both the number of protein identifications and their confidence. C1 Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. Pacific NW Natl Lab, Environm & Mol Lab, Richland, WA 99352 USA. RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999, Richland, WA 99352 USA. RI Petritis, Konstantinos/F-2156-2010; Smith, Richard/J-3664-2012; Ferguson, Lee/A-5501-2013 OI Smith, Richard/0000-0002-2381-2349; NR 62 TC 226 Z9 232 U1 5 U2 30 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 MAR 1 PY 2003 VL 75 IS 5 BP 1039 EP 1048 DI 10.1021/ac0205154 PG 10 WC Chemistry, Analytical SC Chemistry GA 650JE UT WOS:000181259300009 PM 12641221 ER PT J AU Herr, AE Molho, JI Drouvalakis, KA Mikkelsen, JC Utz, PJ Santiago, JG Kenny, TW AF Herr, AE Molho, JI Drouvalakis, KA Mikkelsen, JC Utz, PJ Santiago, JG Kenny, TW TI On-chip coupling of isoelectric focusing and free solution electrophoresis for multidimensional separations SO ANALYTICAL CHEMISTRY LA English DT Article ID CAPILLARY ZONE ELECTROPHORESIS; 2-DIMENSIONAL ELECTROPHORESIS; LIQUID-CHROMATOGRAPHY; ELECTROOSMOTIC FLOW; IMAGING DETECTION; MICROCHIP; PROTEIN; SPEED; PERFORMANCE; EFFICIENCY AB We have developed an acrylic microfluidic device that sequentially couples liquid-phase isoelectric focusing (IEF) and free solution capillary electrophoresis (CE). Rapid separation (< 1 min) and preconcentration (73 x) of species were achieved in the initial IEF dimension. Using full-field fluorescence imaging, we observed non-dispersive mobilization velocities on the order of 20mum/s during characterization of the IEF step. This transport behavior allowed controlled electrokinetic mobilization of focused sample bands to a channel junction, where voltage switching was used to repeatedly inject effluent from the IEF dimension into an ampholyte-based CE separation. This second dimension was capable of analyzing all fluid volumes of interest from the IEF dimension, as IEF was 'parked' during each CE analysis and refocused prior to additional CE analyses. Investigation of each dimension of the integrated system showed time-dependent species displacement and band-broadening behavior consistent with IEF and CE, respectively. The peak capacity of the 2D system was similar to1300. A comprehensive 2D analysis of a fluid volume spanning 15% of the total IEF channel length was completed in less than 5 min. C1 Stanford Univ, Dept Chem Engn, Dept Mech Engn, Stanford, CA 94305 USA. Stanford Univ, Dept Med, Stanford, CA 94305 USA. RP Herr, AE (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. FU NIAID NIH HHS [5U19 AI50864]; NIDDK NIH HHS [5U19 DK61934] NR 41 TC 165 Z9 170 U1 2 U2 42 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 MAR 1 PY 2003 VL 75 IS 5 BP 1180 EP 1187 DI 10.1021/ac026239a PG 8 WC Chemistry, Analytical SC Chemistry GA 650JE UT WOS:000181259300027 PM 12641239 ER PT J AU Hogg, AG Higham, TFG Lowe, DJ Palmer, JG Reimer, PJ Newnham, RM AF Hogg, AG Higham, TFG Lowe, DJ Palmer, JG Reimer, PJ Newnham, RM TI A wiggle-match date for Polynesian settlement of New Zealand SO ANTIQUITY LA English DT Article DE East Polynesia; New Zealand; Maori; dendrochronology; wiggle-matching; C-14 dating; colonisation; deforestation; tephrochronology; tephra; Kaharoa eruption ID RAT RATTUS EXULANS; NORTHERNMOST NEW-ZEALAND; PACIFIC RAT; RADIOCARBON CALIBRATION; ENVIRONMENTAL-CHANGE; TAUPO ERUPTION; LATE-HOLOCENE; SOUTHERN-HEMISPHERE; FOUNDING POPULATION; SEDIMENT RECORD AB Dating initial colonisation and environmental impacts by Polynesians in New Zealand is controversial. A key horizon is provided by the Kaharoa Tephra, deposited from a eruption of Mt Tarawera, because just underneath this layer are the first signs of forest clearance which imply human settlement. The authors used a log of celery pine from within Kaharoa deposits to derive a new precise date for the eruption via 'wiggle-matching'--matching the radiocarbon dates of a sequence of samples from the log with the Southern Hemisphere calibration curve. The date obtained was 1314 +/- 12 AD (2 sigma error), and the first environmental impacts and human occupation are argued to have occurred in the previous 60 years, i.e. in the late 13th-early 14th centuries AD. This date is contemporary with earliest settlement dates determined from archaeological sites in the New Zealand archipelago. C1 Univ Waikato, Hamilton, New Zealand. Oxford Radiocarbon Accelerator Unit, Oxford OX1 3QJ, England. Queens Univ Belfast, Sch Archaeol & Palaeoecology, Belfast BT7 1NN, Antrim, North Ireland. Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA. Univ Plymouth, Plymouth PL4 8AA, Devon, England. RP Hogg, AG (reprint author), Univ Waikato, Hamilton, New Zealand. RI Newnham, Rewi/F-1111-2011; Lowe, David/G-2654-2013; Reimer, Paula/I-5915-2015; Palmer, Jonathan/J-7834-2012 OI Lowe, David/0000-0002-2547-6019; Palmer, Jonathan/0000-0002-6665-4483 NR 68 TC 72 Z9 72 U1 1 U2 15 PU ANTIQUITY PUBL LTD PI CAMBRIDGE PA NEW HALL, CAMBRIDGE CB3 0DF, ENGLAND SN 0003-598X J9 ANTIQUITY JI Antiquity PD MAR PY 2003 VL 77 IS 295 BP 116 EP 125 PG 10 WC Anthropology; Archaeology SC Anthropology; Archaeology GA 665TC UT WOS:000182136500013 ER PT J AU Suzuki, Y Kelly, SD Kemner, KA Banfield, JF AF Suzuki, Y Kelly, SD Kemner, KA Banfield, JF TI Microbial populations stimulated for hexavalent uranium reduction in uranium mine sediment SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Article ID SULFATE-REDUCING BACTERIA; RIBOSOMAL-RNA GENES; SP-NOV; FE(III) REDUCTION; U(VI); BIOREMEDIATION; SUBSURFACE; AMPLIFICATION; GROUNDWATER; REMEDIATION AB Uranium-contaminated sediment and water collected from an inactive uranium mine were incubated anaerobically with organic substrates. Stimulated microbial populations removed U almost entirely from solution within I month. X-ray absorption near-edge structure analysis showed that U(VI) was reduced to U(IV) during the incubation. Observations by transmission electron microscopy, selected area diffraction pattern analysis, and energy-dispersive X-ray spectroscopic analysis showed two distinct types of prokaryotic cells that precipitated only a U(IV) mineral uraninite (UO2) or both uraninite and metal sulfides. Prokaryotic cells associated with uraninite and metal sulfides were inferred to be sulfate-reducing bacteria. Phylogenetic analysis of 16S ribosomal DNA obtained from the original and incubated sediments revealed that microbial populations were changed from microaerophilic Proteobacteria to anaerobic low-G+C gram-positive sporeforming bacteria by the incubation. Forty-two out of 94 clones from the incubated sediment were related to sulfate-reducing Desulfiosporosinus spp., and 23 were related to fermentative Clostridium spp. The results suggest that, if in situ bioremediation were attempted in the uranium mine ponds, Desulfiosporosinus spp. would be a major contributor to U(VI) and sulfate reduction and Clostridium spp. to U(VI) reduction. C1 Univ Wisconsin, Dept Geol & Geophys, Madison, WI 53706 USA. Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA. Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA. RP Suzuki, Y (reprint author), Japan Marine Sci & Technol Ctr, Frontier Res Syst Extremophiles, 2-15 Natushima Cho, Yokohama, Kanagawa 237006, Japan. EM yohey@jamstec.go.jp RI ID, MRCAT/G-7586-2011; Suzuki, Yohey/G-4980-2014 NR 48 TC 110 Z9 110 U1 3 U2 23 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0099-2240 EI 1098-5336 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD MAR PY 2003 VL 69 IS 3 BP 1337 EP 1346 DI 10.1128/AEM.69.3.1337-1346.2003 PG 10 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA 653LA UT WOS:000181435600001 PM 12620814 ER PT J AU Davison, BH Finkelstein, M AF Davison, BH Finkelstein, M TI Introduction to the Proceedings of the Twenty-Fourth Symposium on Biotechnology for Fuels and Chemicals SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Editorial Material C1 Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Davison, BH (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN USA. RI Davison, Brian/D-7617-2013 OI Davison, Brian/0000-0002-7408-3609 NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP III EP VII PG 5 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000001 ER PT J AU Shoemaker, SP Wright, LL AF Shoemaker, SP Wright, LL TI Feedstock production, genetic modification, and processing SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Editorial Material C1 Univ Calif Davis, Davis, CA 95616 USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Shoemaker, SP (reprint author), Univ Calif Davis, Davis, CA 95616 USA. NR 0 TC 1 Z9 1 U1 0 U2 2 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 3 EP 4 DI 10.1385/ABAB:105:1-3:3 PG 2 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000002 ER PT J AU Hames, BR Thomas, SR Sluiter, AD Roth, CJ Templeton, DW AF Hames, BR Thomas, SR Sluiter, AD Roth, CJ Templeton, DW TI Rapid biomass analysis - New tools for compositional analysis of corn stover feedstocks and process intermediates from ethanol production SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE corn stover; near infrared spectroscopy; projection to latent structures; feedstock; multivariate analysis AB New, rapid, and inexpensive methods that monitor the chemical composition of corn stover and corn stover-derived samples are a key element to enabling the commercialization of processes that convert stover to fuels and chemicals. These new techniques combine near infrared (NIR) spectroscopy and projection to latent structures (PLS) multivariate analysis to allow the compositional analysis of hundreds of samples in 1 d at a cost of about $10 each. The new NIR/PLS rapid analysis methods can also be used to support a variety of research projects that would have been too costly to pursue by traditional methods. C1 Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Hames, BR (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. NR 3 TC 80 Z9 83 U1 2 U2 17 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 5 EP 16 DI 10.1385/ABAB:105:1-3:5 PG 12 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000003 PM 12721471 ER PT J AU Keller, FA Hamilton, JE Nguyen, QA AF Keller, FA Hamilton, JE Nguyen, QA TI Microbial pretreatment of biomass - Potential for reducing severity of thermochemical biomass pretreatment SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE microbial pretreatment; fungal pretreatment; corn stover; enzymatic hydrolysis ID WHITE-ROT FUNGI AB Typical pretreatment requires high-energy (steam and electricity) and corrosion-resistant, high-pressure reactors. A review of the literature suggests that fungal pretreatment could potentially lower the severity requirements of acid, temperature and time. These reductions in severity are also expected to result in less biomass degradation and consequently lower inhibitor concentrations compared to conventional thermochemical pretreatment. Furthermore, potential advantages of fungal pretreatment of agricultural residues, such as corn stover, are suggested by its effectiveness in improving the cellulose digestibility of many types of forage fiber and agricultural wastes. Our preliminary tests show a three- to five-fold improvement in enzymatic cellulose digestibility of corn stover after pretreatment with Cyathus stercoreus; and a ten- to 100-fold reduction in shear force needed to obtain the same shear rate of 3.2 to 7 rev/s, respectively, after pretreatment with Phanerochaete chrysosporium. C1 Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Nguyen, QA (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. NR 16 TC 131 Z9 139 U1 3 U2 24 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 27 EP 41 DI 10.1385/ABAB:105:1-3:27 PG 15 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000005 PM 12721473 ER PT J AU Hess, JR Thompson, DN Hoskinson, RL Shaw, PG Grant, DR AF Hess, JR Thompson, DN Hoskinson, RL Shaw, PG Grant, DR TI Physical separation of straw stem components to reduce silica SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE wheat straw; silica; selective harvest; bioenergy; combustion; whole crop utilization AB In this paper, we describe ongoing efforts to solve challenges to using straw for bioenergy and bioproducts. Among these, silica in straw forms a low-melting eutectic with potassium, causing slag deposits, and chlorides cause corrosion beneath the deposits. Straw consists principally of stems, leaves, sheaths, nodes, awns, and chaff. Leaves and sheaths are higher in silica, while chaff, leaves, and nodes are the primary sources of fines. Our approach to reducing silica is to selectively harvest the straw stems using an in-field physical separation, leaving the remaining components in the field to build soil organic matter and contribute soil nutrients. C1 Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA. Grant 4D Farms, Rupert, ID 83350 USA. RP Hess, JR (reprint author), Idaho Natl Engn & Environm Lab, POB 1625, Idaho Falls, ID 83415 USA. NR 5 TC 17 Z9 17 U1 0 U2 3 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 43 EP 51 DI 10.1385/ABAB:105:1-3:43 PG 9 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000006 PM 12721474 ER PT J AU Schell, DJ Farmer, J Newman, M McMillan, JD AF Schell, DJ Farmer, J Newman, M McMillan, JD TI Dilute-sulfuric acid pretreatment of corn stover in pilot-scale reactor - Investigation of yields, kinetics, and enzymatic digestibilities of solids SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE pretreatment; dilute-sulfuric acid; enzymatic conversion; corn stover; xylan conversion; kinetics; pilot scale AB Corn stover is a domestic feedstock that has potential to produce significant quantities of fuel ethanol and other bioenergy and biobased products. However, comprehensive yield and carbon mass balance information and validated kinetic models for dilute-sulfuric acid (H2SO4) pretreatment of corn stover have not been available. This has hindered the estimation of process economics and also limited the ability to perform technoeconomic modeling to guide research. To better characterize pretreatment and assess its kinetics, we pretreated corn stover in a continuous 1 t/d reactor. Corn stover was pretreated at 20% (w/w) solids concentration over a range of conditions encompassing residence times of 3-12 min, temperatures of 165-195degreesC, and H2SO4 concentrations of 0.5-1.4% (w/w). Xylan conversion yield and carbon mass balance data were collected at each run condition. Performance results were used to estimate kinetic model parameters assuming biphasic hemicellulose hydrolysis and a hydrolysis mechanism incorporating formation of intermediate xylo-oligomers. In addition, some of the pretreated solids were tested in a simultaneous saccharification and fermentation (SSF) process to measure the reactivity of their cellulose component to enzymatic digestion by cellulase enzymes. Monomeric xylose yields of 69-71% and total xylose yields (monomers and oligomers) of 70-77% were achieved with performance level depending on pretreatment severity. Cellulose conversion yields in SSF of 80-87% were obtained for some of the most digestible pretreated solids. C1 Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Schell, DJ (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. NR 21 TC 270 Z9 279 U1 5 U2 70 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 69 EP 85 DI 10.1385/ABAB:105:1-3:69 PG 17 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000008 PM 12721476 ER PT J AU Tucker, MP Kim, KH Newman, MM Nguyen, QA AF Tucker, MP Kim, KH Newman, MM Nguyen, QA TI Effects of temperature and moisture on dilute-acid steam explosion pretreatment of corn stover and cellulase enzyme digestibility SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE pretreatment; dilute-acid; acid hydrolysis; corn stover; enzymatic hydrolysis AB Corn stover is emerging as a viable feedstock for producing bioethanol from renewable resources. Dilute-acid pretreatment of corn stover can solubilize a significant portion of the hemicellulosic component and enhance the enzymatic digestibility of the remaining cellulose for fermentation into ethanol. In this study, dilute H2SO4 pretreatment of corn stover was performed in a steam explosion reactor at 160degreesC, 180degreesC, and 190degreesC, approx 1 wt% H2SO4, and 70-s to 840-s residence times. The combined severity (Log(10) [R-0] - pH), an expression relating pH, temperature, and residence time of pretreatment, ranged from 1.8 to 2.4. Soluble xylose yields varied from 63 to 77% of theoretical from pretreatments of corn stover at 160 and 180degreesC. However, yields >90% of theoretical were found with dilute-acid pretreatments at 190degreesC. A narrower range of higher combined severities was required for pretreatment to obtain high soluble xylose yields when the moisture content of the acid-impregnated feedstock was increased from 55 to 63 wt%. Simultaneous saccharification and fermentation (SSF) of washed solids from corn stover pretreated at 190degreesC, using an enzyme loading of 15 filter paper units (FPU)/g of cellulose, gave ethanol yields in excess of 85%. Similar SSF ethanol yields were found using washed solid residues from 160 and 180degreesC pretreatments at similar combined severities but required a higher enzyme loading of approx 25 FPU/g of cellulose. C1 Natl Renewable Energy Lab, Biotechnol Div Fuels & Chem, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Tucker, MP (reprint author), Natl Renewable Energy Lab, Biotechnol Div Fuels & Chem, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. RI Kim, Kyoung Heon/F-1059-2013 OI Kim, Kyoung Heon/0000-0003-4600-8668 NR 21 TC 94 Z9 98 U1 2 U2 38 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 165 EP 177 DI 10.1385/ABAB:105:1-3:165 PG 13 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000015 PM 12721483 ER PT J AU Thompson, DN Shaw, PG Lacey, JA AF Thompson, DN Shaw, PG Lacey, JA TI Post-harvest processing methods for reduction of silica and alkali metals in wheat straw SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE bioenergy; combustion; gasification; fluidized bed; silica; potassium; chloride; slagging AB Silica and alkali metals in wheat straw limit its use for bioenergy and gasification. Slag deposits occur via the eutectic melting Of SiO2 with K2O, trapping chlorides at surfaces and causing corrosion. A minimum melting point of 950degreesC is desirable, corresponding to an SiO2:K2O weight ratio of about 3:1. Mild chemical treatments were used to reduce Si, K, and Cl, while varying temperature, concentration, % solids, and time. Dilute acid was more effective at removing K and Cl, while dilute alkali was more effective for Si. Reduction of minerals in this manner may prove economical for increasing utilization of the straw for combustion or gasification. C1 Idaho Natl Engn & Environm Lab, Dept Biotechnol, Idaho Falls, ID 83415 USA. RP Thompson, DN (reprint author), Idaho Natl Engn & Environm Lab, Dept Biotechnol, POB 1625, Idaho Falls, ID 83415 USA. NR 10 TC 12 Z9 16 U1 2 U2 6 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 205 EP 218 DI 10.1385/ABAB:105:1-3:205 PG 14 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000018 PM 12721486 ER PT J AU Ho, NWY Roberto, FF AF Ho, NWY Roberto, FF TI Microbial catalysis and metabolic engineering SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Editorial Material C1 Purdue Univ, Renewable Resources Engn Lab, W Lafayette, IN 47907 USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID USA. RP Ho, NWY (reprint author), Purdue Univ, Renewable Resources Engn Lab, W Lafayette, IN 47907 USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 245 EP 246 DI 10.1385/ABAB:105:1-3:245 PG 2 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000021 ER PT J AU Stambuk, BU Franden, MA Singh, A Zhang, M AF Stambuk, BU Franden, MA Singh, A Zhang, M TI D-xylose transport by Candida succiphila and Kluyveromyces marxianus SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE D-xylose; transport kinetics; fermentation; Candida succiphila; Kluyveromyces marxianus ID YEAST PICHIA-STIPITIS; SACCHAROMYCES-CEREVISIAE; FERMENTATION; GLUCOSE; ETHANOL; RECOMBINANT; SUGARS; KINETICS; SYSTEM AB The kinetics and regulation Of D-Xylose uptake were investigated in the efficient pentose fermentor Candida succiphila, and in Kluyveromyces marxianus, which assimilate but do not ferment pentose sugars. Active high-affinity (K-m similar to 3.8 mM; V-max similar to 15 nmol/[mg.min]) and putative facilitated diffusion low-affinity (K-m similar to 140,mM; V-max similar to 130 nmol/ [mg.min]) transport activities were found in C. succiphila grown, respectively, on xylose or glucose. K. marxianus showed facilitated diffusion low-affinity (K-m similar to 103 mm; V-max similar to 190 nmol/ [mg.min]) transport activity when grown on xylose under microaerobic conditions, and both a low-affinity and an active high-affinity (K-m similar to 0.2 mM; V-max similar to 10 nmol/ [mg.min]) transport activity when grown on xylose under fully aerobic conditions. C1 Natl Bioenergy Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. Univ Fed Santa Catarina, Dept Bioquim, BR-88040900 Florianopolis, SC, Brazil. RP Stambuk, BU (reprint author), Natl Bioenergy Ctr, Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA. NR 34 TC 21 Z9 22 U1 1 U2 4 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 255 EP 263 PG 9 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000023 PM 12721449 ER PT J AU Lee, JW Greenbaum, E AF Lee, JW Greenbaum, E TI A new oxygen sensitivity and its potential application in photosynthetic H-2 production SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE oxygen sensitivity; H-2 production; photosynthetic H-2 production; H-2 production pathways; hydrogenase AB We have discovered a new competitive pathway for O-2 sensitivity in algal H-2 production that is distinct from the O-2 sensitivity of hydrogenase per se. This O-2 sensitivity is apparently linked to the photosynthetic H-2 production pathway that is coupled to proton translocation across the thylakoid membrane. Addition of the proton uncoupler carbonyl cyanide-p-trifluoro-methoxy-phenylhydrazone eliminates this mode Of O-2 inhibition on H-2 photoevolution. This newly discovered inhibition is most likely owing to background O-2 that apparently serves as a terminal electron acceptor in competition with the H-2 production pathway for photosynthetically generated electrons from water splitting. This O-2-sensitive H-2 production electron transport pathway was inhibited by 3[3,4-dichlorophenyl]1,1-dimethylurea. Our experiments demonstrated that this new pathway is more sensitive to O-2 than the traditionally known O-2 sensitivity of hydrogenase. This discovery provides new insight into the mechanism of O-2 inactivation of hydrogenase and may contribute to the development of a more-efficient and robust system for photosynthetic H-2 production. C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. RP Lee, JW (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA. NR 5 TC 29 Z9 29 U1 0 U2 9 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 303 EP 313 PG 11 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000028 PM 12721454 ER PT J AU Thompson, DN Houghton, TP Lacey, JA Shaw, PG Hess, RS AF Thompson, DN Houghton, TP Lacey, JA Shaw, PG Hess, RS TI Preliminary investigation of fungal bioprocessing of wheat straw for production of straw-thermoplastic composites SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE fungal upgrading; white-rot fungi; wheat straw; Pleurotus ostreatus; straw composite ID WHITE-ROT FUNGI; LIGNOCELLULOSIC MATERIALS; ENZYMATIC-HYDROLYSIS; LIGNINOLYTIC FUNGI; PRETREATMENT; DEGRADATION; DELIGNIFICATION; BIODEGRADATION; DIGESTIBILITY; PLEUROTUS AB Straw utilization for composites is limited by poor resin and polymer penetration, and excessive resin consumption owing to the straw cuticle, fines, and lignin-hemicellulose matrix. White-rot fungi degrade these components of straw and could, therefore, potentially be used to improve resin penetration and resin binding without the use of physical or chemical pretreatments. Although long treatment times and large footprints the limit use of fungal treatments on a large scale, distributed fungal pretreatments could alleviate land requirements. In this article, we present progress toward the development of a passive fungal straw upgrading system utilizing white-rot fungi. C1 Idaho Natl Engn & Environm Lab, Dept Biotechnol, Idaho Falls, ID 83415 USA. RP Thompson, DN (reprint author), Idaho Natl Engn & Environm Lab, Dept Biotechnol, POB 1625, Idaho Falls, ID 83415 USA. NR 30 TC 7 Z9 7 U1 0 U2 2 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 423 EP 436 PG 14 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000039 PM 12721465 ER PT J AU Pettersson, PO Torget, RW Eklund, R Xiang, Q Lee, YY Zacchi, G AF Pettersson, PO Torget, RW Eklund, R Xiang, Q Lee, YY Zacchi, G TI Simplistic Modeling approach to heterogeneous dilute-acid hydrolysis of cellulose microcrystallites SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE dilute-acid hydrolysis; kinetic model; heterogeneous model AB The classic kinetic model for cellulose hydrolysis is often referred to as pseudo-homogeneous, a term revealing the insight that the process is actually heterogeneous. During the past 10-15 yr, the shortcomings of this model have been demonstrated in various studies and the interest in the heterogeneous aspects has increased. The present work presents a simplistic model in which the intrinsic, heterogeneous hydrolysis and transport rates are coupled by the assumption of a constant glucosidic surface concentration. The mechanisms affecting these two rates are largely unknown, but the model serves as a guideline for further exploration of the process. C1 Mid Sweden Univ, S-89118 Ornskoldsvik, Sweden. Natl Renewable Energy Lab, Golden, CO USA. Umea Univ, S-90187 Umea, Sweden. Auburn Univ, Auburn, AL 36849 USA. Lund Univ, S-22100 Lund, Sweden. RP Pettersson, PO (reprint author), Mid Sweden Univ, S-89118 Ornskoldsvik, Sweden. NR 7 TC 4 Z9 5 U1 2 U2 2 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 451 EP 455 PG 5 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000041 ER PT J AU Xiang, Q Lee, YY Pettersson, PO Torget, R AF Xiang, Q Lee, YY Pettersson, PO Torget, R TI Heterogeneous aspects of acid hydrolysis of alpha-cellulose SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE acid hydrolysis; cellulose; hydrogen bonding; kinetics; crystallinity AB Hydrolysis of alpha-cellulose by H2SO4 is a heterogeneous reaction. As such the reaction is influenced by physical factors. The hydrolysis reaction is therefore controlled not only by the reaction conditions (acid concentration and temperature) but also by the physical state of the cellulose. As evidence of this, the reaction rates measured at the high-temperature region (above 200degreesC) exhibited a sudden change in apparent activation energy at a certain temperature, deviating from Arrhenius law. Furthermore, cc-cellulose, once it was dissolved into concentrated H2SO4 and reprecipitated, showed a reaction rate two orders of magnitude higher than that of untreated cellulose, about the same magnitude as cornstarch. The cc-cellulose when treated with a varying level of H2SO4 underwent an abrupt change in physical structure (fibrous form to gelatinous form) at about 65% H2SO4. The sudden shift of physical structure and reaction pattern in response to acid concentration and temperature indicates that the main factor causing the change in cellulose structure is disruption of hydrogen bonding. Finding effective means of disrupting hydrogen bonding before or during the hydrolysis reaction may lead to a novel biomass saccharification process. C1 Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA. Mid Sweden Univ, S-89118 Ornskoldsvik, Sweden. Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Lee, YY (reprint author), Auburn Univ, Dept Chem Engn, 230 Ross Hall, Auburn, AL 36849 USA. NR 14 TC 111 Z9 113 U1 2 U2 17 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 505 EP 514 PG 10 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000046 PM 12721431 ER PT J AU Decker, SR Adney, WS Jennings, E Vinzant, TB Himmel, ME AF Decker, SR Adney, WS Jennings, E Vinzant, TB Himmel, ME TI Automated filter paper assay for determination of cellulase activity SO APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY LA English DT Article; Proceedings Paper CT 24th Symposium on Biotechnology for Fuels and Chemicals CY APR 28-MAY 01, 2002 CL GATLINBURG, TENNESSEE DE filter paper assay; cellulase; cellulose; Trichoderma reesei; filter paper unit ID BIOETHANOL PRODUCTION; PERSPECTIVE; EVOLUTION; PROTEIN; BIOMASS AB Recent developments in molecular breeding and directed evolution have promised great developments in industrial enzymes as demonstrated by exponential improvements in beta-lactamase and green fluorescent protein (GFP). Detection of and screening for improved enzymes are relatively easy if the target enzyme is expressible in a suitable high-throughput screening host and a clearly defined and usable screen or selection is available, as with GFP and beta-lactamase. Fungal cellulases, however, are difficult to measure and have limited expressibility in heterologous hosts. Furthermore, traditional cellulase assays are tedious and time-consuming. Multiple enzyme components, an insoluble substrate, and generally slow reaction rates have plagued cellulase researchers interested in creating cellulase mixtures with increased activities and/or enhanced biochemical properties. Although the International Union of Pure and Applied Chemists standard measure of cellulase activity, the filter paper assay (FPA), can be reproduced in most laboratories with some effort, this method has long been recognized for its complexity and susceptibility to operator error. Our current automated FPA method is based on a Cyberlabs C400 robotics deck equipped with customized incubation, reagent storage, and plate-reading capabilities that allow rapid evaluation of cellulases acting on cellulose and has a maximum throughput of 84 enzyme samples per day when performing the automated FPA. C1 Natl Renewable Energy Lab, Natl Bioenergy Ctr, Golden, CO 80401 USA. RP Decker, SR (reprint author), Natl Renewable Energy Lab, Natl Bioenergy Ctr, 1617 Cole Blvd, Golden, CO 80401 USA. NR 22 TC 52 Z9 54 U1 0 U2 9 PU HUMANA PRESS INC PI TOTOWA PA 999 RIVERVIEW DRIVE SUITE 208, TOTOWA, NJ 07512 USA SN 0273-2289 J9 APPL BIOCHEM BIOTECH JI Appl. Biochem. Biotechnol. PD SPR PY 2003 VL 105 BP 689 EP 703 PG 15 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA 675YK UT WOS:000182725000063 PM 12721448 ER PT J AU Brooks, SC Carroll, SL AF Brooks, SC Carroll, SL TI Geochemical reactions governing the fate of Co-NTA in contact with natural subsurface materials SO APPLIED GEOCHEMISTRY LA English DT Article ID CHELATING-AGENTS HEDP; AQUATIC MODEL SYSTEMS; CHELATOBACTER-HEINTZII; SEQUENTIAL EXTRACTION; NITRILOTRIACETATE NTA; MINERAL PHASES; ADSORPTION; COMPLEXES; TRANSPORT; SOILS AB Subsurface codisposal of toxic metals and radionuclides with organic chelating agents has created vast areas of contaminated soils and groundwater. The fate of the metal/ radionuclide and ligand are inexorably linked in their interaction with soil minerals and aquifer solids. The present study was conducted to investigate the geochemical reactions (sorption, dissolution, dissociation, oxidation) that govern the fate of Co(II)NTA complexes in contact with natural subsurface materials that are typical of materials underlying some waste disposal areas. Equilibrium measurements indicated that at low pH (4) and in the presence of abundant surface exchangeable Al, the adsorption of Co and NTA was independent of the presence of the other component. By contrast, at higher pH (6 and 7.4) the sorption of both Co and NTA decreased in the presence of the other moiety. Solution phase analyses indicated that the decrease in sorption was driven by the formation of stable aqueous complexes of Co(II) and Co(III) with NTA. The time-dependent loss of Co(II)NTA from solution was accounted for by sorption, complex dissociation, and the oxidation of Co(II) to Co(III). Biodegradation of NTA was not an important process over the 21-day incubation period. Formation of Co(III) complexes has broad implications in these systems as these species are kinetically and thermodynamically stable, exhibit lower adsorption onto solids, and are resistant to biodegradation. Thus, with the exception of relatively extreme conditions (low pH, abundant readily available Al), NTA decreased Co partitioning to surfaces through the formation of stable aqueous complexes. This behavior may contribute to the undesirable transport of Co-60 through the subsurface. (C) 2002 Elsevier Science Ltd. All rights reserved. C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. RP Brooks, SC (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008,MS 6038, Oak Ridge, TN 37831 USA. RI Brooks, Scott/B-9439-2012 OI Brooks, Scott/0000-0002-8437-9788 NR 58 TC 2 Z9 2 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0883-2927 J9 APPL GEOCHEM JI Appl. Geochem. PD MAR PY 2003 VL 18 IS 3 BP 423 EP 433 AR PII S0883-2927(02)00074-4 DI 10.1016/S0883-2927(02)00074-4 PG 11 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 643HB UT WOS:000180854900007 ER PT J AU Gilbert, ES Walker, AW Keasling, JD AF Gilbert, ES Walker, AW Keasling, JD TI A constructed microbial consortium for biodegradation of the organophosphorus insecticide parathion SO APPLIED MICROBIOLOGY AND BIOTECHNOLOGY LA English DT Article ID BACTERIAL CONSORTIUM; PSEUDOMONAS STRAINS; EXPRESSION VECTORS; DEGRADATION; METABOLISM; MINERALIZATION; SPHINGOMONAS; COCULTURE; HYDROLASE; KINETICS AB A consortium comprised of two engineered microorganisms was assembled for biodegradation of the organophosphate insecticide parathion. Escherichia coli SD2 harbored two plasmids, one encoding a gene for parathion hydrolase and a second carrying a green fluorescent protein marker. Pseudomonas putida KT2440 pSB337 contained a p-nitrophenol-inducible plasmid-borne operon encoding the genes for p-nitrophenol mineralization. The co-culture effectively hydrolyzed 500 muM parathion (146 mg 1(-1)) and prevented the accumulation of P-nitrophenol in suspended culture. Kinetic analyses were conducted to characterize the growth and substrate utilization of the consortium members. Parathion hydrolysis by E. coli SD2 followed Michaelis-Menten kinetics. p-Nitrophenol mineralization by P. putida KT2440 pSB337 exhibited substrate-inhibition kinetics. The growth of both strains was inhibited by increasing concentrations of p-nitrophenol, with E. coli SD2 completely inhibited by 600 muM p-nitrophenol (83 mg 1(-1)) and P. putida KT2440 pSB337 inhibited by 1,000 muM p-nitrophenol (139 mg 1(-1)). Cultivation of the consortium as a biofilm indicated that the two species could cohabit as a population of attached cells. Analysis by confocal microscopy showed that the biofilm was predominantly comprised of P. putida KT2440 pSB337 and that the distribution of E. coli SD2 within the biofilm was heterogeneous. The use of biofilms for the construction of degradative consortia may prove beneficial. C1 Georgia State Univ, Dept Biol, Atlanta, GA 30303 USA. Sandia Natl Labs, Livermore, CA USA. Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA. RP Gilbert, ES (reprint author), Georgia State Univ, Dept Biol, 24 Peachtree Ctr Ave, Atlanta, GA 30303 USA. RI Keasling, Jay/J-9162-2012 OI Keasling, Jay/0000-0003-4170-6088 NR 33 TC 51 Z9 56 U1 5 U2 18 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0175-7598 J9 APPL MICROBIOL BIOT JI Appl. Microbiol. Biotechnol. PD MAR PY 2003 VL 61 IS 1 BP 77 EP 81 DI 10.1007/s00253-002-1203-5 PG 5 WC Biotechnology & Applied Microbiology SC Biotechnology & Applied Microbiology GA 671GB UT WOS:000182456000010 PM 12658518 ER PT J AU Hamza, AV Newman, MW Thielen, PA Lee, HWH Schenkel, T McDonald, JW Schneider, DH AF Hamza, AV Newman, MW Thielen, PA Lee, HWH Schenkel, T McDonald, JW Schneider, DH TI Exciton dispersion in silicon nanostructures formed by intense, ultra-fast electronic excitation SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID HIGHLY-CHARGED IONS; SI NANOCRYSTALS; POROUS SILICON; SURFACES; SOLIDS; TIME; SLOW; DEPOSITION; GAAS AB The intense, ultra-fast electronic excitation of clean silicon (100)-(2 x 1) surfaces leads to the formation of silicon nanostructures embedded in silicon, which photoluminesce in the yellow-green (similar to 2-eV band gap). The silicon surfaces were irradiated with slow, highly charged ions (e.g. Xe44+ and Au53+) to produce the ultra-fast electronic excitation. The observation of excitonic features in the luminescence from these nanostructures has recently been reported. In this paper we report the dispersion of the excitonic features with laser excitation energy. A phonon-scattering process is proposed to explain the observed dispersion. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Hamza, AV (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 22 TC 3 Z9 3 U1 0 U2 2 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD MAR PY 2003 VL 76 IS 3 BP 313 EP 317 DI 10.1007/s00339-002-1814-9 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 624VH UT WOS:000179782100004 ER PT J AU Chan, JW Huser, TR Risbud, SH Krol, DM AF Chan, JW Huser, TR Risbud, SH Krol, DM TI Modification of the fused silica glass network associated with waveguide fabrication using femtosecond laser pulses SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID VITREOUS SILICA; TRANSPARENT MATERIALS; INDUCED DAMAGE; AMORPHOUS SIO2; WAVE-GUIDES; DENSIFICATION; IRRADIATION; RAMAN; MICROFABRICATION; DIELECTRICS AB Atomic-scale structural changes have been observed in the glass network of fused silica after modification by tightly focused 800-nm, 130-fs laser pulses at fluences between 5 and 200 J cm(-2). Raman spectroscopy of the modified glass shows an increase in the 490 and 605-cm(-1) peaks, indicating an increase in the number of 4- and 3-membered ring structures in the silica network. These results provide evidence that densification of the ass occurs after exposure to fs pulses. Fluorescence spectroscopy of the modified glass shows a broad fluorescence band at 630 nm, indicating the formation of non-bridging oxygen hole centers (NBOHC) by fs pulses. Waveguides that support the fundamental mode at 633 nm have been fabricated inside fused silica by scanning the glass along the fs laser beam axis. The index changes are estimated to be approximately 0.07 x 10(-3). C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA. Univ Calif Davis, Dept Appl Sci, Livermore, CA 94550 USA. RP Krol, DM (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RI Huser, Thomas/H-1195-2012; Chan, James/J-3829-2014 OI Huser, Thomas/0000-0003-2348-7416; NR 31 TC 133 Z9 135 U1 5 U2 40 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD MAR PY 2003 VL 76 IS 3 BP 367 EP 372 DI 10.1007/s00339-002-1822-9 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 624VH UT WOS:000179782100012 ER PT J AU Wynne, AE Stuart, BC AF Wynne, AE Stuart, BC TI Rate dependence of short-pulse laser ablation of metals in air and vacuum SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID FEMTOSECOND LASERS; PICOSECOND; NANOSECOND; EXCITATION AB Ablation rates of aluminum and stainless steel are studied as a function of fluence, hole depth, pulse duration and ambient pressure (air vs vacuum). We find a weak rate dependence on pulse duration from 150 fs to 500 ps, and a strong rate dependence on hole depth due to surface roughness. Machining in air plays an important role in deep holes, but has a weaker influence on initial surface ablation rates. Oxidation greatly reduces drilling rates for deep holes in aluminum. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Stuart, BC (reprint author), Lawrence Livermore Natl Lab, POB 808,L-477, Livermore, CA 94550 USA. RI Stuart, Brent/K-4988-2015 NR 18 TC 78 Z9 80 U1 8 U2 32 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD MAR PY 2003 VL 76 IS 3 BP 373 EP 378 DI 10.1007/s00339-002-1823-8 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 624VH UT WOS:000179782100013 ER PT J AU Sundaram, SK Schaffer, CB Mazur, E AF Sundaram, SK Schaffer, CB Mazur, E TI Microexplosions in tellurite glasses SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article ID FEMTOSECOND LASER-PULSES; TRANSPARENT MATERIALS; INDUCED BREAKDOWN; RAMAN-SPECTRA; OPTICAL-PROPERTIES; FUSED-SILICA; WAVE-GUIDES; TEMPERATURE; THRESHOLDS; ENERGY AB Femtosecond laser pulses were used to produce localized damage in the bulk and near the surface of baseline, Al2O3-doped and La2O3-doped sodium tellurite glasses. Single or multiple laser pulses were non-linearly absorbed in the focal volume by the glass, leading to permanent changes in the material in the focal volume. These changes were caused by an explosive expansion of the ionized material in the focal volume into the surrounding material, i.e. a microexplosion. The writing of simple structures (periodic array of voxels, as well as lines) was demonstrated. The regions of microexplosion and writing were subsequently characterized using scanning electron microscopy (SEM), energy-dispersive spectrometry (EDS) and atomic force microscopy (AFM). Fingerprints of microexplosions (concentric lines within the region and a concentric ring outside the region), due to the shock wave generated during microexplosions, were evident. In the case of the baseline glass, no chemistry change was observed within the region of the microexplosion. However, Al2O3-doped and La2O3-doped glasses showed depletion of the dopant from the edge to the center of the region of the microexplosions, indicating a chemistry gradient within the regions. Interrogation of the bulk- and laser-treated regions using micro-Raman spectroscopy revealed no structural change due to the microexplosions and writing within these glasses. C1 Pacific NW Natl Lab, Environm Technol Div, Richland, WA 99352 USA. Univ Calif San Diego, Dept Chem & Biochem, San Diego, CA 92093 USA. Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA. Harvard Univ, Dept Phys, Cambridge, MA 02138 USA. RP Sundaram, SK (reprint author), Pacific NW Natl Lab, Environm Technol Div, Richland, WA 99352 USA. RI Schaffer, Chris/A-7409-2008; Mazur, Eric/B-8918-2009 OI Schaffer, Chris/0000-0002-7800-9596; NR 36 TC 28 Z9 28 U1 3 U2 9 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD MAR PY 2003 VL 76 IS 3 BP 379 EP 384 DI 10.1007/s00339-002-1824-7 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA 624VH UT WOS:000179782100014 ER PT J AU Marquet, C Schmidt-Kaler, F James, DFV AF Marquet, C Schmidt-Kaler, F James, DFV TI Phonon-phonon interactions due to non-linear effects in a linear ion trap SO APPLIED PHYSICS B-LASERS AND OPTICS LA English DT Article ID QUANTUM INFORMATION; ENTANGLED STATES; PAUL TRAP; COMPUTATION AB We examine in detail the theory of the intrinsic non-linearities in the dynamics of trapped ions due to the Coulomb interaction. In particular, the possibility of mode-mode coupling, which can be a source of decoherence in trapped ion quantum computation, or can be exploited for parametric down-conversion of phonons, is discussed and conditions under which such coupling is possible are derived. C1 Los Alamos Natl Lab, Theoret Div T4, Los Alamos, NM 87545 USA. Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria. Univ Paris 06, MIP, F-75005 Paris, France. Ecole Normale Super, Dept Phys, F-75005 Paris, France. RP James, DFV (reprint author), Los Alamos Natl Lab, Theoret Div T4, Mail Stop B-283,POB 1663, Los Alamos, NM 87545 USA. EM dfvj@lanl.gov RI James, Daniel/B-9805-2009; Schmidt-Kaler, Ferdinand/E-2151-2017 OI James, Daniel/0000-0003-3981-4602; NR 30 TC 25 Z9 25 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0946-2171 J9 APPL PHYS B-LASERS O JI Appl. Phys. B-Lasers Opt. PD MAR PY 2003 VL 76 IS 3 BP 199 EP 208 DI 10.1007/s00340-003-1097-7 PG 10 WC Optics; Physics, Applied SC Optics; Physics GA 676NH UT WOS:000182758000001 ER PT J AU Lewis, GM Smowton, PM Blood, P Chow, WW AF Lewis, GM Smowton, PM Blood, P Chow, WW TI Effect of tensile strain/well-width combination on the measured gain-radiative current characteristics of 635 nm laser diodes SO APPLIED PHYSICS LETTERS LA English DT Article ID SPONTANEOUS EMISSION AB Polarization sensitive measurements, in real units, of gain and spontaneous emission of GaInP lasers with three strain and well-width combinations allow us to isolate the intrinsic effects of strain when the well width is also adjusted to maintain a fixed output wavelength. Varying tensile strain and well width, for 635 nm operation, have no effect on transverse magnetic polarized recombination at fixed gain, which is consistent with a constant effective mass in the uppermost valence band, but the total transparency current decreases from 116 to 83 A cm(-2) due to increasing separation of light and heavy hole bands. (C) 2003 American Institute of Physics. C1 Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales. Sandia Natl Labs, Semicond Mat & Device Sci Dept, Albuquerque, NM 87185 USA. RP Lewis, GM (reprint author), Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3YB, S Glam, Wales. OI Smowton, Peter/0000-0002-9105-4842 NR 9 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR PY 2003 VL 82 IS 10 BP 1524 EP 1526 DI 10.1063/1.1559658 PG 3 WC Physics, Applied SC Physics GA 652AW UT WOS:000181358200010 ER PT J AU Borghesi, M Romagnani, L Schiavi, A Campbell, DH Haines, MG Willi, O Mackinnon, AJ Galimberti, M Gizzi, L Clarke, RJ Hawkes, S AF Borghesi, M Romagnani, L Schiavi, A Campbell, DH Haines, MG Willi, O Mackinnon, AJ Galimberti, M Gizzi, L Clarke, RJ Hawkes, S TI Measurement of highly transient electrical charging following high-intensity laser-solid interaction SO APPLIED PHYSICS LETTERS LA English DT Article ID PLASMA INTERACTION; PULSE AB The multi-million-electron-volt proton beams accelerated during high-intensity laser-solid interactions have been used as a particle probe to investigate the electric charging of microscopic targets laser-irradiated at intensity similar to10(19) W cm(2). The charge-up, detected via the proton deflection with high temporal and spatial resolution, is due to the escape of energetic electrons generated during the interaction. The analysis of the data is supported by three-dimensional tracing of the proton trajectories. (C) 2003 American Institute of Physics. C1 Queens Univ Belfast, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland. Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 1BZ, England. Univ Dusseldorf, Inst Laser & Plasmaphys, D-4000 Dusseldorf, Germany. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. CNR, Ist Proc Chim Fis, I-56100 Pisa, Italy. Rutherford Appleton Lab, Cent Laser Facil, Chilton OX11 0QX, England. RP Borghesi, M (reprint author), Queens Univ Belfast, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland. RI Gizzi, Leonida/F-4782-2011; Borghesi, Marco/K-2974-2012; MacKinnon, Andrew/P-7239-2014; Galimberti, Marco/J-8376-2016; Schiavi, Angelo/D-2924-2017 OI Gizzi, Leonida A./0000-0001-6572-6492; MacKinnon, Andrew/0000-0002-4380-2906; Galimberti, Marco/0000-0003-0661-7282; Schiavi, Angelo/0000-0002-7081-2747 NR 12 TC 68 Z9 69 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR PY 2003 VL 82 IS 10 BP 1529 EP 1531 DI 10.1063/1.1560554 PG 3 WC Physics, Applied SC Physics GA 652AW UT WOS:000181358200012 ER PT J AU Chen, Y Ohlberg, DAA Li, XM Stewart, DR Williams, RS Jeppesen, JO Nielsen, KA Stoddart, JF Olynick, DL Anderson, E AF Chen, Y Ohlberg, DAA Li, XM Stewart, DR Williams, RS Jeppesen, JO Nielsen, KA Stoddart, JF Olynick, DL Anderson, E TI Nanoscale molecular-switch devices fabricated by imprint lithography SO APPLIED PHYSICS LETTERS LA English DT Article AB Nanoscale molecular-electronic devices comprising a single molecular monolayer of bistable [2]rotaxanes sandwiched between two 40-nm metal electrodes were fabricated using imprint lithography. Bistable current-voltage characteristics with high on-off ratios and reversible switching properties were observed. Such devices may function as basic elements for future ultradense electronic circuitry. (C) 2003 American Institute of Physics. C1 Hewlett Packard Labs, Quantum Sci Res, Palo Alto, CA 94304 USA. Univ Calif Los Angeles, Dept Chem & Biochem, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Calif NanoSyst Inst, Los Angeles, CA 90095 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Chen, Y (reprint author), Hewlett Packard Labs, Quantum Sci Res, 1501 Page Mill Rd,MS1123, Palo Alto, CA 94304 USA. RI Williams, R. Stanley/A-8281-2009; Stoddart, James /H-1518-2011 OI Williams, R. Stanley/0000-0003-0213-4259; NR 10 TC 205 Z9 211 U1 0 U2 19 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR PY 2003 VL 82 IS 10 BP 1610 EP 1612 DI 10.1063/1.1559439 PG 3 WC Physics, Applied SC Physics GA 652AW UT WOS:000181358200039 ER PT J AU Byon, E Oates, TWH Anders, A AF Byon, E Oates, TWH Anders, A TI Coalescence of nanometer silver islands on oxides grown by filtered cathodic arc deposition SO APPLIED PHYSICS LETTERS LA English DT Article ID THIN-FILMS; TI FILMS; VACUUM AB Ultrathin silver films have been deposited on glass and oxide-coated glass using filtered cathodic arc deposition and, for comparison, magnetron sputtering. The energetic differences between these deposition methods lead to initially different film properties. Silver films made by cathodic arc deposition show an earlier onset of island coalescence, indicating a lower aspect ratio than islands produced by evaporation and sputtering. However, the as-deposited films are thermodynamically unstable, exhibiting changes on a timescale of minutes. While films of islands tend to increase their sheet resistance with time, the sheet resistance of contiguous films shows a decrease. Both effects can be explained by silver mobility driven to minimize film and interfacial energy. (C) 2003 American Institute of Physics. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Anders, A (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RI Oates, Tom /B-4658-2011; Anders, Andre/B-8580-2009 OI Anders, Andre/0000-0002-5313-6505 NR 14 TC 37 Z9 37 U1 2 U2 9 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD MAR PY 2003 VL 82 IS 10 BP 1634 EP 1636 DI 10.1063/1.1558955 PG 3 WC Physics, Applied SC Physics GA 652AW UT WOS:000181358200047 ER PT J AU Gregory, DM Botto, RE AF Gregory, DM Botto, RE TI Pore structure and sorption properties of silica aerogels studied by magnetic resonance imaging and pulsed-field gradient spectroscopy SO APPLIED SPECTROSCOPY LA English DT Article DE imaging; nuclear magnetic resonance; NMR; pulsed-field gradient; PFG; aerogels; diffusion; pore size; gas sorption ID XE-129 NMR-SPECTROSCOPY; ZEOLITES; GAS AB Magnetic resonance imaging (MRI) has provided direct visualization of gaseous xenon and methane in the void spaces of aerogels, offering unique information and insights into the pore structure and molecular diffusivities of occluded sorbates. Nuclear magnetic resonance (NMR) pulsed-field gradient (PFG) techniques were used to characterize exchange and diffusive motion of sorbed xenon gas at equilibrium. PFG measurements showed evidence of anisotropic diffusion; nominal self-diffusivity coefficients of xenon on the order of D = 10(-7) m(2)/s were determined. Based on a mathematical relationship for the restricted diffusion of gases in confined environments, an expression for estimating the mean free path was derived, from which the average pore size could be obtained from the extrapolated value of the diffusion coefficient to low xenon pressures. C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RP Botto, RE (reprint author), Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 30 TC 3 Z9 3 U1 0 U2 4 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 USA SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD MAR PY 2003 VL 57 IS 3 BP 245 EP 250 DI 10.1366/000370203321558137 PG 6 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA 704UE UT WOS:000184358200002 PM 14658614 ER PT J AU Kreimann, EL Miura, M Itoiz, ME Heber, E Garavaglia, RN Batistoni, D Rebagliati, RJ Roberti, MJ Micca, PL Coderre, JA Schwint, AE AF Kreimann, EL Miura, M Itoiz, ME Heber, E Garavaglia, RN Batistoni, D Rebagliati, RJ Roberti, MJ Micca, PL Coderre, JA Schwint, AE TI Biodistribution of a carborane-containing porphyrin as a targeting agent for Boron Neutron Capture Therapy of oral cancer in the hamster cheek pouch SO ARCHIVES OF ORAL BIOLOGY LA English DT Article DE hamster cheek pouch; oral cancer; Boron Neutron Capture Therapy; boronated porphyrin; CuTCPH ID BRAIN-BARRIER DISRUPTION; PARA-BORONOPHENYLALANINE; GLIOBLASTOMA-MULTIFORME; INTRACAROTID INJECTION; INTRACEREBRAL MELANOMA; SODIUM BOROCAPTATE; SELECTIVE DELIVERY; NA2B12H11SH BSH; NECK-CANCER; PHASE-I AB Boron Neutron Capture Therapy (BNCT) is a bimodal cancer treatment based on the selective accumulation of B-10 in tumors and concurrent irradiation with thermalized neutrons. The short-range, high-LET radiation produced by the capture of neutrons by B-10 could potentially control tumor white sparing normal. tissue if the boron compound targets tumor selectively within the treatment volume. In previous studies, we proposed and validated the hamster cheek pouch model of oral cancer for BNCT studies, proved that absolute and relative uptake of the clinically employed boron compound boronophenylalanine (BPA) would be potentially therapeutic in this model and provided evidence of the efficacy of in vivo BPA-mediated BNCT to control hamster oral mucosa tumors with virtually no damage to normal tissue. We herein present the biodistribution and pharmacokinetics of a lipophilic, carborane-containing tetraphenylporphyrin (CuTCPH) in the hamster oral cancer model. CuTCPH is a novel, non-toxic compound that may be advantageous in terms of selective and absolute delivery of boron to tumor tissues. For potentially effective BNCT, tumor boron concentrations from a new agent should be greater than 30 ppm and tumor/blood and tumor/normal tissue boron concentration ratios should be greater than 5/1 without causing significant toxicity. We administered CuTCPH intraperitoneally (i.p.) as a single dose of 32 mug/g body weight (b.w.) (10 mug B/g b.w.) or as four doses of 32 mug/g b.w. over 2 days. Blood (Bl) and tissues were sampled at 3, 6, 12, 24, 48, and 72 h in the single-dose protocol and at 1-4 days after the Last injection in the multidose protocol. The tissues sampled were tumor (T), precancerous tissue surrounding tumor, normal pouch (N), skin, tongue, cheek and palate mucosa, liver, spleen, parotid gland and brain. The maximum mean B ratios for the single-dose protocol were T/N: 9.2/1 (12 h) and T/Bl: 18.1/1 (72 h). The B value peaked to 20.7 +/- 18.5 ppm in tumor at 24 h. The multidose protocol maximum mean ratios were T/N: 11.9/1 (3 days) and T/Bl: 235/1 (4 days). Absolute boron concentration in tumor reached a maximum value of 116 ppm and a mean value of 71.5 +/- 48.3 ppm at 3 days. The fact that absolute and relative B values markedly exceeded the BNCT therapeutic threshold with no apparent toxicity may confer on this compound a therapeutic advantage. CuTCPH-mediated BNCT would be potentially useful for the treatment of oral cancer in an experimental model. (C) 2003 Elsevier Science Ltd. All rights reserved. C1 Natl Atom Energy Commiss, Dept Radiol, RA-1429 Buenos Aires, DF, Argentina. Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. Univ Buenos Aires, Fac Dent, Dept Oral Pathol, RA-1122 Buenos Aires, DF, Argentina. Natl Atom Energy Commiss, Dept Chem, RA-1429 Buenos Aires, DF, Argentina. MIT, Dept Nucl Engn, Boston, MA 02115 USA. RP Schwint, AE (reprint author), Natl Atom Energy Commiss, Dept Radiol, Avenida Libertador 8250, RA-1429 Buenos Aires, DF, Argentina. OI Schwint, Amanda Elena/0000-0001-6727-3669 NR 46 TC 18 Z9 18 U1 1 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0003-9969 J9 ARCH ORAL BIOL JI Arch. Oral Biol. PD MAR PY 2003 VL 48 IS 3 BP 223 EP 232 DI 10.1016/S0003-9969(02)00210-8 PG 10 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA 676LK UT WOS:000182753400007 PM 12648560 ER PT J AU Rasmussen, S Raven, MJ Keating, GN Bedau, MA AF Rasmussen, S Raven, MJ Keating, GN Bedau, MA TI Collective intelligence of the artificial life community on its own successes, failures, and future SO ARTIFICIAL LIFE LA English DT Article DE Internet; survey; consensus; consent; conflict; collective intelligence; decision support; organizational learning; professional society AB We describe a novel Internet-based method for building consensus and. clarifying conflicts in large stakeholder groups facing complex issues, and we use the method to survey and map the scientific and organizational perspectives of the artificial life community during the Seventh International Conference on Artificial Life (summer 2000). The issues addressed in this survey included artificial life's main successes, main failures, main open scientific questions, and main strategies for the future, as well as the benefits and pitfalls of creating a professional society for artificial life. By illuminating the artificial life community's collective perspective on these issues, this survey illustrates the value of such methods of harnessing the collective intelligence of large stakeholder groups. C1 Los Alamos Natl Lab, GISLab, Los Alamos, NM 87545 USA. Santa Fe Inst, Santa Fe, NM 87501 USA. Reed Coll, Portland, OR 97202 USA. RP Rasmussen, S (reprint author), Los Alamos Natl Lab, GISLab, EES-6,MS-T003, Los Alamos, NM 87545 USA. NR 20 TC 7 Z9 7 U1 0 U2 3 PU M I T PRESS PI CAMBRIDGE PA FIVE CAMBRIDGE CENTER, CAMBRIDGE, MA 02142 USA SN 1064-5462 J9 ARTIF LIFE JI Artif. Life PD SPR PY 2003 VL 9 IS 2 BP 207 EP 235 DI 10.1162/106454603322221531 PG 29 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods SC Computer Science GA 691LA UT WOS:000183606700006 PM 12906730 ER PT J AU Dieckmann, J Roth, KW Brodrick, J AF Dieckmann, J Roth, KW Brodrick, J TI Dedicated outdoor air systems SO ASHRAE JOURNAL LA English DT Article ID VAV SYSTEMS; VENTILATION C1 TIAX, Cambridge, MA USA. US DOE, Bldg Technol Program, Washington, DC USA. NR 5 TC 6 Z9 6 U1 2 U2 4 PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC, PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA SN 0001-2491 J9 ASHRAE J JI ASHRAE J. PD MAR PY 2003 VL 45 IS 3 BP 58 EP 59 PG 2 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA 654JR UT WOS:000181493500015 ER PT J AU Lowe, DR Byerly, GR Kyte, FT Shukolyukov, A Asaro, F Krull, A AF Lowe, DR Byerly, GR Kyte, FT Shukolyukov, A Asaro, F Krull, A TI Spherule beds 3.47-3.24 billion years old in the Barberton Greenstone Belt, South Africa: A record of large meteorite impacts and their influence on early crustal and biological evolution SO ASTROBIOLOGY LA English DT Article; Proceedings Paper CT 10th Rubey Colloquium CY FEB 08-09, 2002 CL LOS ANGELES, CA DE impacts; spherule beds; Archean; Barberton Greenstone Belt ID CRETACEOUS-TERTIARY BOUNDARY; FIG TREE GROUP; ARCHEAN SILICATE SPHERULES; MOUNTAIN LAND; WESTERN-AUSTRALIA; EARLY EARTH; ASTEROID IMPACTS; ONVERWACHT GROUP; ORIGIN; GEOCHEMISTRY AB Four layers, S1-S4, containing sand-sized spherical particles formed as a result of large meteorite impacts, occur in 3.47-3.24 Ga rocks of the Barberton Greenstone Belt, South Africa. Ir levels in S3 and S4 locally equal or exceed chondritic values but in other sections are at or only slightly above background. Most spherules are inferred to have formed by condensation of impact-produced rock vapor clouds, although some may represent ballistically ejected liquid droplets. Extreme Ir abundances and heterogeneity may reflect element fractionation during spherule formation, hydraulic fractionation during deposition, and/or diagenetic and metasomatic processes. Deposition of S1, S2, and S3 was widely influenced by waves and/or currents interpreted to represent impact-generated tsunamis, and S1 and S2 show multiple graded layers indicating the passage of two or more wave trains. These tsunamis may have promoted mixing within a globally stratified ocean, enriching surface waters in nutrients for biological communities. S2 and S3 mark the transition from the 300-million-year-long Onverwacht stage of predominantly basaltic and komatiitic volcanism to the late orogenic stage of greenstone belt evolution, suggesting that regional and possibly global tectonic reorganization resulted from these large impacts. These beds provide the oldest known direct record of terrestrial impacts and an opportunity to explore their influence on early life, crust, ocean, and atmosphere. The apparent presence of impact clusters at 3.26-3.24 Ga and similar to2.65-2.5 Ga suggests either spikes in impact rates during the Archean or that the entire Archean was characterized by terrestrial impact rates above those currently estimated from the lunar cratering record. C1 Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA. Louisiana State Univ, Dept Geol & Geophys, Baton Rouge, LA 70803 USA. Univ Calif Los Angeles, Ctr Astrobiol, Inst Geophys & Planetary Phys, Los Angeles, CA USA. Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Lowe, DR (reprint author), Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 USA. EM lowe@pangea.Stanford.edu RI Davatzes, Alexandra/B-1479-2012; Byerly, Gary Ray/D-7316-2012 OI Byerly, Gary Ray/0000-0003-4400-6909 NR 79 TC 78 Z9 80 U1 0 U2 21 PU MARY ANN LIEBERT INC PI NEW ROCHELLE PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA SN 1531-1074 J9 ASTROBIOLOGY JI Astrobiology PD SPR PY 2003 VL 3 IS 1 BP 7 EP 48 DI 10.1089/153110703321632408 PG 42 WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology GA 676LF UT WOS:000182753000003 PM 12804363 ER PT J AU Pier, JR Munn, JA Hindsley, RB Hennessy, GS Kent, SM Lupton, RH Ivezic, Z AF Pier, JR Munn, JA Hindsley, RB Hennessy, GS Kent, SM Lupton, RH Ivezic, Z TI Astrometric calibration of the Sloan Digital Sky Survey SO ASTRONOMICAL JOURNAL LA English DT Article DE astrometry; methods : data analysis; surveys ID CELESTIAL EQUATOR; 1ST SURVEY; SYSTEM; CATALOG; REGIONS AB The astrometric calibration of the Sloan Digital Sky Survey is described. For point sources brighter than r similar to 20, the astrometric accuracy is 45 mas rms per coordinate when reduced against the USNO CCD Astrograph Catalog and 75 mas rms when reduced against Tycho-2, with an additional 20 30 mas systematic error in both cases. The rms errors are dominated by anomalous refraction and random errors in the primary reference catalogs. The relative astrometric accuracy between the r filter and each of the other filters (u, g, i, z) is 25-35 mas rms. At the survey limit (r similar to 22), the astrometric accuracy is limited by photon statistics to approximately 100 mas rms for typical seeing. Anomalous refraction is shown to contain components correlated over 2degrees or more on the sky. C1 USN Observ, Flagstaff Stn, Flagstaff, AZ 86002 USA. USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA. USN Observ, Washington, DC 20392 USA. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. Princeton Univ Observ, Princeton, NJ 08544 USA. RP Pier, JR (reprint author), USN Observ, Flagstaff Stn, POB 1149, Flagstaff, AZ 86002 USA. EM jrp@nofs.navy.mil; jam@nofs.navy.mil; hindsley@nrl.navy.mil; gsh@usno.navy.mil; skent@fnal.gov; rhl@astro.princeton.edu; ivezic@astro.princeton.edu NR 29 TC 747 Z9 749 U1 0 U2 2 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 MAR PY 2003 VL 125 IS 3 BP 1559 EP 1579 DI 10.1086/346138 PG 21 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 647LR UT WOS:000181094700050 ER PT J AU Bartelmann, M Perrotta, F Baccigalupi, C AF Bartelmann, M Perrotta, F Baccigalupi, C TI Halo concentrations and weak-lensing number counts in dark energy cosmologies (vol 396, pg 21, 2002) SO ASTRONOMY & ASTROPHYSICS LA English DT Correction C1 Max Planck Inst Astrophys, D-85741 Garching, Germany. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Osserv Astron Padova, I-35122 Padua, Italy. SISSA, ISAS, I-34014 Trieste, Italy. RP Bartelmann, M (reprint author), Max Planck Inst Astrophys, POB 1317, D-85741 Garching, Germany. RI Bartelmann, Matthias/A-5336-2014 NR 2 TC 2 Z9 2 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD MAR PY 2003 VL 400 IS 1 BP 19 EP 19 DI 10.1051/0004-6361:20030067 PG 1 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 648XT UT WOS:000181177300007 ER PT J AU Barraud, C Olive, JF Lestrade, JP Atteia, JL Hurley, K Ricker, G Lamb, DQ Kawai, N Boer, M Dezalay, JP Pizzichini, G Vanderspek, R Crew, G Doty, J Monnelly, G Villasenor, J Butler, N Levine, A Yoshida, A Shirasaki, Y Sakamoto, T Tamagawa, T Torii, K Matsuoka, M Fenimore, EE Galassi, A Tavenner, T Donaghy, TQ Graziani, C Jernigan, JG AF Barraud, C Olive, JF Lestrade, JP Atteia, JL Hurley, K Ricker, G Lamb, DQ Kawai, N Boer, M Dezalay, JP Pizzichini, G Vanderspek, R Crew, G Doty, J Monnelly, G Villasenor, J Butler, N Levine, A Yoshida, A Shirasaki, Y Sakamoto, T Tamagawa, T Torii, K Matsuoka, M Fenimore, EE Galassi, A Tavenner, T Donaghy, TQ Graziani, C Jernigan, JG TI Spectral analysis of 35 GRBs/XRFs observed with HETE-2/FREGATE SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE gamma-rays : bursts ID GAMMA-RAY BURSTS; BATSE; BEPPOSAX; ENERGY; EMISSION; SHOCKS; GRB; AFTERGLOWS; RADIATION; CATALOG AB We present a spectral analysis of 35 GRBs detected with the HETE-2 gamma-ray detectors (the FREGATE instrument) in the energy range 7-400 keV. The GRB sample analyzed is made of GRBs localized with the Wide Field X-ray Monitor onboard HETE-2 or with the GRB Interplanetary Network. We derive the spectral parameters of the time-integrated spectra, and present the distribution of the low-energy photon index, alpha, and of the peak energy, E-p. We then discuss the existence and nature of the recently discovered X-Ray Flashes and their relationship with classical GRBs. C1 Observ Midi Pyrenees, Astrophys Lab, F-31400 Toulouse, France. Observ Midi Pyrenees, CESR, F-31028 Toulouse, France. Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA. MIT, Ctr Space Res, Cambridge, MA 02139 USA. Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan. RIKEN, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan. Aoyama Gakuin Univ, Dept Phys, Setagaya Ku, Tokyo 1578572, Japan. Natl Space Dev Agcy Japan, Tsukuba Space Ctr, Tsukuba, Ibaraki 3058505, Japan. Natl Astron Observ, Tokyo 1818588, Japan. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. CNR, IASF, I-40129 Bologna, Italy. RP Barraud, C (reprint author), Observ Midi Pyrenees, Astrophys Lab, F-31400 Toulouse, France. EM barraud@ast.obs-mip.fr OI Boer, Michel/0000-0001-9157-4349 NR 57 TC 102 Z9 105 U1 0 U2 1 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD MAR PY 2003 VL 400 IS 3 BP 1021 EP 1030 DI 10.1051/0004-6361:20030074 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 653UY UT WOS:000181456500021 ER PT J AU Huang, J Hotta, N Kasahara, K Ohta, I Ozawa, S Saito, T Shibata, M Xu, XW Yuda, T AF Huang, J Hotta, N Kasahara, K Ohta, I Ozawa, S Saito, T Shibata, M Xu, XW Yuda, T TI Primary proton spectrum around the knee deduced from the emulsion-chamber data obtained at Mts. Fuji and Kanbala SO ASTROPARTICLE PHYSICS LA English DT Article DE cosmic ray; emulsion chamber; gamma-family; neural network; Monte Carlo simulation; proton; knee region ID COSMIC-RAY COMPOSITION; HIGH-ENERGY; HADRONIC-INTERACTIONS; SHOCK ACCELERATION; CROSS-SECTIONS; TEV; FAMILIES; REGION AB We have done extensive Monte Carlo simulations using the new simulation codes of CORSIKA and COSMOS to compare with the gamma-family data obtained at Mts. Fuji (3750 m above sea level) and Kanbala (5500 m above sea level). Then, we estimated the primary proton and helium spectra around the knee energy region using a multiple-layered feed-forward neural network as a classifier of primary particle kind. The selection efficiency of proton-induced family events is estimated to be 82%. The flux value of protons at 2 x 10(15) eV is (5.5 +/- 1.5) x 10(-14) (m(-2) s(-1) sr(-1) GeV-1). The result suggests heavy-enriched primary composition around the knee region. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Utsunomiya Univ, Fac Engn, Utsunomiya, Tochigi 3218505, Japan. Utsunomiya Univ, Fac Educ, Utsunomiya, Tochigi 3218585, Japan. Shibaura Inst Technol, Fac Syst Engn, Omiya, Saitama 3308570, Japan. Tokyo Metropolitan Coll Aeronaut Engn, Tokyo 1160003, Japan. Yokohama Natl Univ, Dept Phys, Yokohama, Kanagawa 2408501, Japan. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan. RP Huang, J (reprint author), Utsunomiya Univ, Fac Engn, Utsunomiya, Tochigi 3218505, Japan. NR 31 TC 8 Z9 9 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0927-6505 J9 ASTROPART PHYS JI Astropart Phys. PD MAR PY 2003 VL 18 IS 6 BP 637 EP 648 AR PII S0927-6505(02)00182-2 DI 10.1016/S0927-6505(02)00182-2 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA 649BQ UT WOS:000181187400008 ER PT J AU van Dokkum, PG Stanford, SA AF van Dokkum, PG Stanford, SA TI The fundamental plane at z=1.27: First calibration of the mass scale of red galaxies at redshifts z > 1 SO ASTROPHYSICAL JOURNAL LA English DT Article DE galaxies : clusters : general; galaxies : elliptical and lenticular, cD; galaxies : evolution; galaxies : kinematics and dynamics; galaxies : structure ID FIELD ELLIPTIC GALAXIES; CLUSTER CL 1358+62; TO-LIGHT RATIO; DISTANT CLUSTERS; LUMINOSITY EVOLUTION; VELOCITY DISPERSION; STELLAR POPULATION; INTERMEDIATE REDSHIFT; ULTRAVIOLET-SPECTRA; SURFACE PHOTOMETRY AB We present results on the fundamental plane of early-type galaxies in the cluster RDCS J0848+4453 at z=1.27. Internal velocity dispersions of three K-selected early-type galaxies are determined from deep Keck spectra, using absorption lines in the rest-frame wavelength range 3400-4000 Angstrom. Structural parameters are determined from Hubble Space Telescope NICMOS images. The galaxies show substantial offsets from the fundamental plane of the nearby Coma Cluster, as expected from passive evolution of their stellar populations. The offsets from the fundamental plane can be expressed as offsets in mass-to-light (M/L) ratio. The M/L ratios of the two most massive galaxies are consistent with an extrapolation of results obtained for clusters at 0.023 and R-K>5, and our results show that it is hazardous to use simple models for converting luminosity to mass for these objects. The work presented here, and previous mass measurements at lower redshift, can be considered first steps to empirically disentangle luminosity and mass evolution at the high-mass end of the galaxy population, lifting an important degeneracy in the interpretation of evolution of the luminosity function. C1 CALTECH, Pasadena, CA 91125 USA. Univ Calif Davis, Dept Phys, Davis, CA 95616 USA. Lawrence Livermore Natl Lab, Inst Geophys & Planetary Phys, Livermore, CA 94550 USA. RP van Dokkum, PG (reprint author), CALTECH, MS 105-24, Pasadena, CA 91125 USA. NR 76 TC 127 Z9 127 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAR 1 PY 2003 VL 585 IS 1 BP 78 EP 89 DI 10.1086/345989 PN 1 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 646QV UT WOS:000181046500008 ER PT J AU Lee, J Gallagher, PT Gary, DE Nita, GM Choe, GS Bong, SC Yun, HS AF Lee, J Gallagher, PT Gary, DE Nita, GM Choe, GS Bong, SC Yun, HS TI H alpha, extreme-ultraviolet, and microwave observations of the 2000 March 22 solar flare and spontaneous magnetic reconnection SO ASTROPHYSICAL JOURNAL LA English DT Article DE MHD; radiation mechanisms : nonthermal; Sun : flares; Sun : magnetic fields; Sun : radio radiation; Sun : UV radiation ID QUASI-SEPARATRIX LAYERS; X-RAY OBSERVATIONS; SPATIAL-RESOLUTION; BURSTS; MODEL; CONFIGURATION; RADIATION; TOPOLOGY; CORONA; LOOPS AB The evolution of a GOES class X1.1 solar are, which occurred in NOAA Active Region 8910 on 2000 March 22, is discussed using observations from the Owens Valley Solar Array (OVSA), Big Bear Solar observatory (BBSO), Transition Region and Coronal Explorer (TRACE), and the Michelson Doppler Imager (MDI) on board Solar and Heliospheric Observatory (SOHO). During the impulsive phase, a set of coronal loops are visible in the TRACE 171 Angstrom (similar to 1 X 10(6) K) wavelength band, which is confined to a small volume in the center of the large betagammadelta-type active region. This is rapidly followed by the emergence of bright Halpha ribbons that coincide with the EUV emission. Radio images show a single source encompassing the Halpha ribbons at 5 GHz, but at higher frequencies a double source is seen within the area bounded by the compact Halpha and EUV emissions. We interpret the observation under the idea of the confined are in contrast with the more commonly cited, eruptive are. We use a schematic magnetic reconnection geometry based on the MDI magnetogram to suggest that the EUV loops show some parts of a separatrix, and that the radio and Halpha sources coincide with the whole part of the separatrix and its footpoints, respectively. First of all, it explains why this are lacks the separating motion of Halpha ribbons, a signature for eruptive flares. Second, the very short duration of microwave bursts in spite of the large amount of soft X-ray flux is explicable under this scenario, since energy release via spontaneous reconnection in a confined magnetic structure can be very rapid. Third, the confined magnetic geometry is also considered favorable for preserving chromospheric evaporation and plasma turbulence as inferred from the OVSA microwave spectrum. In addition, a coronal mass ejection as detected in the LASCO coronagraph after this flare is briefly discussed in relation to the above are model. C1 New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. NASA, L3 Commun Analyt Corp, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Seoul Natl Univ, SEES, Astron Program, Seoul 151742, South Korea. RP Lee, J (reprint author), New Jersey Inst Technol, Dept Phys, Newark, NJ 07102 USA. RI Choe, Gwangson/E-2366-2013; Gallagher, Peter/C-7717-2011 OI Gallagher, Peter/0000-0001-9745-0400 NR 54 TC 15 Z9 15 U1 0 U2 3 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAR 1 PY 2003 VL 585 IS 1 BP 524 EP 535 DI 10.1086/346024 PN 1 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 646QV UT WOS:000181046500045 ER PT J AU Dalal, N Holz, DE Chen, XL Frieman, JA AF Dalal, N Holz, DE Chen, XL Frieman, JA TI Corrective lenses for high-redshift supernovae SO ASTROPHYSICAL JOURNAL LA English DT Article DE cosmology : observations; cosmology : theory; dark matter; gravitational lensing; supernovae : general ID FARTHEST KNOWN SUPERNOVA; DARK-MATTER; ACCELERATING UNIVERSE; PREDICTIONS; 1997FF AB Weak lensing of high-redshift Type Ia supernovae induces an external dispersion in their observed standard candle brightnesses, comparable in magnitude to the intrinsic dispersion for redshifts z > 1. The same matter fluctuations responsible for the magnification of distant supernovae also generate shear in the images of background galaxies. We investigate the possibility of using lensing shear maps constructed from galaxies surrounding the supernovae as a means of correcting the lensing-induced magnification dispersion. We find that a considerable fraction of the lensing dispersion derives from subarcminute scales, which are not probed by shear maps smoothed on arcminute scales. We thus find that weak-lensing shear maps will be of only limited value in reducing the weak-lensing magnification fluctuations of supernovae. C1 Inst Adv Study, Sch Nat Sci, Princeton, NJ 08540 USA. Univ Calif Santa Barbara, Kaveli Inst Theoret Phys, Santa Barbara, CA 93106 USA. Fermilab Natl Accelerator Lab, NASA Fermilab Astrophys Ctr, Batavia, IL 60510 USA. Univ Chicago, Ctr Cosmol Phys, Chicago, IL 60637 USA. Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. RP Dalal, N (reprint author), Inst Adv Study, Sch Nat Sci, Einstein Dr, Princeton, NJ 08540 USA. NR 32 TC 40 Z9 40 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAR 1 PY 2003 VL 585 IS 1 BP L11 EP L14 DI 10.1086/374207 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 646QW UT WOS:000181046600003 ER PT J AU Hogg, DW Blanton, MR Eisenstein, DJ Gunn, JE Schlegel, DJ Zehavi, I Bahcall, NA Brinkmann, J Csabai, I Schneider, DP Weinberg, DH York, DG AF Hogg, DW Blanton, MR Eisenstein, DJ Gunn, JE Schlegel, DJ Zehavi, I Bahcall, NA Brinkmann, J Csabai, I Schneider, DP Weinberg, DH York, DG TI The overdensities of galaxy environments as a function of luminosity and color SO ASTROPHYSICAL JOURNAL LA English DT Article DE galaxies : clusters : general; galaxies : fundamental parameters; galaxies : statistics; large-scale structure of universe ID DIGITAL SKY SURVEY; SPECTROSCOPIC TARGET SELECTION; DARK-MATTER HALOES; EARLY DATA RELEASE; REDSHIFT SURVEY; SURFACE-BRIGHTNESS; SPIRAL GALAXIES; STAR-FORMATION; VIRGO CLUSTER; DEPENDENCE AB We study the mean environments of galaxies in the Sloan Digital Sky Survey (SDSS) as a function of rest-frame luminosity and color. Overdensities in galaxy number are estimated in 8 and 1 h(-1) Mpc spheres centered on 115,000 galaxies taken from the SDSS spectroscopic sample. We find that, at constant color, overdensity is independent of luminosity for galaxies with the blue colors of spirals. This suggests that at fixed star formation history, spiral-galaxy mass is a very weak function of environment. Overdensity does depend on luminosity for galaxies with the red colors of early types; both low-luminosity and high-luminosity red galaxies are found to be in highly overdense regions. C1 NYU, Dept Phys, Ctr Cosmol & Particle Phys, New York, NY 10003 USA. Univ Arizona, Steward Observ, Tucson, AZ 85721 USA. Princeton Univ Observ, Princeton, NJ 08544 USA. Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA. Apache Point Observ, Sunspot, NM 88349 USA. Eotvos Lorand Univ, Dept Phys, H-1518 Budapest, Hungary. Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA. Ohio State Univ, Dept Astron, Columbus, OH 43210 USA. RP Hogg, DW (reprint author), NYU, Dept Phys, Ctr Cosmol & Particle Phys, 4 Washington Pl, New York, NY 10003 USA. EM david.hogg@nyu.edu RI Csabai, Istvan/F-2455-2012; OI Csabai, Istvan/0000-0001-9232-9898; Hogg, David/0000-0003-2866-9403 NR 46 TC 192 Z9 192 U1 0 U2 3 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 MAR 1 PY 2003 VL 585 IS 1 BP L5 EP L9 DI 10.1086/374238 PN 2 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 646QW UT WOS:000181046600002 ER PT J AU Smith, MC Mao, S Wozniak, P AF Smith, MC Mao, S Wozniak, P TI A brown dwarf microlens candidate from the second phase of the Optical Gravitational Lensing Experiment SO ASTROPHYSICAL JOURNAL LA English DT Article DE gravitational lensing; stars : individual (sc26_2218); stars : low-mass, brown dwarfs ID DIFFERENCE IMAGE-ANALYSIS; II BULGE DATA; GALACTIC BULGE; PHOTOMETRY; EXTINCTION; PARALLAX; COLORS; MACHOS; SEARCH; EVENT AB We describe a unique mass determination for a microlensing event from the second phase of the Optical Gravitational Lensing Experiment. The event, sc26_2218, which is very bright (baseline magnitude I = 15.10), appears to exhibit both parallax and finite- source effects. The parallax effect allows us to determine the projected Einstein radius on the observer plane ((r) over tilde (E) approximate to 3.8 AU), while the finite-source effect allows us to determine the ratio of the angular source size and the angular Einstein radius. As the angular size of the star can be estimated using its color and magnitude, we can hence determine the angular Einstein radius theta(E) approximate to 0.1. By combining (r) over tilde (E) and theta(E), we can determine the lens mass M approximate to 0.050(-0.011)(+0.016) M., independent of the source distance. The lens is therefore a brown dwarf candidate, located at a distance of similar to6.5 kpc. However, the "parallax" signature is weak, and so we cannot completely discount the possibility that these signatures originate from binary rotation of the source (which would prevent any estimate of the lens mass) rather than parallax. However, this can be tested by future spectroscopic observations. This event highlights the scientific returns for intense monitoring of bright microlensing events, since the parallax and finite-source effects can be more easily identified because of their high signal-to-noise ratios. C1 Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Smith, MC (reprint author), Univ Manchester, Jodrell Bank Observ, Macclesfield SK11 9DL, Cheshire, England. NR 31 TC 11 Z9 11 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD MAR 1 PY 2003 VL 585 IS 1 BP L65 EP L68 DI 10.1086/373985 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA 646QW UT WOS:000181046600016 ER PT J AU Schwartz, SE AF Schwartz, SE TI James P. Lodge, Jr.: a tribute to an editor SO ATMOSPHERIC ENVIRONMENT LA English DT Editorial Material C1 Brookhaven Natl Lab, Dept Appl Sci, Upton, NY 11973 USA. RP Schwartz, SE (reprint author), Brookhaven Natl Lab, Dept Appl Sci, Upton, NY 11973 USA. RI Schwartz, Stephen/C-2729-2008 OI Schwartz, Stephen/0000-0001-6288-310X NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1352-2310 J9 ATMOS ENVIRON JI Atmos. Environ. PD MAR PY 2003 VL 37 IS 9-10 BP 1159 EP 1160 DI 10.1016/S1352-2310(02)01006-3 PG 2 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 659LA UT WOS:000181777100002 ER PT J AU Torres, DJ O'Rourke, PJ Amsden, AA AF Torres, DJ O'Rourke, PJ Amsden, AA TI A discrete multicomponent fuel model SO ATOMIZATION AND SPRAYS LA English DT Article ID DROPLET VAPORIZATION; MASS-TRANSFER; EVAPORATION; COMBUSTION AB Equations are derived for multicomponent fuel evaporation of airborne fuel droplets and wall films, and are implemented as a multicomponent fuel model into KIVA-3V. Temporal and spatial variations in liquid droplet composition and temperature are not modeled but solved for by discretizing the interior of the droplet in an implicit and computationally efficient way. We find that an interior discretization is necessary to compute the evolution of the droplet composition correctly. This is because an interior discretization gives significantly improved results for the evolution of droplet compositions and temperatures over the alternatives of using infinite diffusivities or of using correlations based on the differences between surface and average values. Numerical simulations of the evaporation of single droplets, axisymmetric sprays, and sprays in 3-D engine geometries demonstrate the need for interior discretization and for using a multicomponent fuel model in gasoline spray simulations. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. RP Torres, DJ (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. NR 29 TC 15 Z9 15 U1 2 U2 12 PU BEGELL HOUSE INC PI NEW YORK PA 145 MADISON AVE, NEW YORK, NY 10016 USA SN 1044-5110 J9 ATOMIZATION SPRAY JI Atom. Sprays PD MAR-JUN PY 2003 VL 13 IS 2-3 BP 131 EP 172 DI 10.1615/AtomizSpr.v13.i23.10 PG 42 WC Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 755LY UT WOS:000187405400001 ER PT J AU Plague, GR McArthur, JV AF Plague, GR McArthur, JV TI Phenotypic plasticity of larval retreat design in a net-spin ning caddisfly SO BEHAVIORAL ECOLOGY LA English DT Article DE artificial stream channel; behavioral plasticity; Hydropsychidae; interspecific competition; Macrostemum carolina; microhabitat selection; Trichoptera ID MACROSTEMUM-CAROLINA; HYDROPSYCHIDAE; TRICHOPTERA; DIMORPHISM; SELECTION; CRICKET; INSECTS AB Larval Macrostemum carolina caddisflies construct silken catchnets within protective retreats, often on submerged trees and branches (i.e., snags). In the Savannah River, M. carolina larvae construct three distinct retreats that differ in the configuration of the water entrance hole: (1) at the end of a silken tube, (2) flush with the top of the retreat, and (3) backed by a similar to180-degree silken backstop. To identify the proximate mechanism mediating this retreat polymorphism, we removed larvae of known phenotype from their original retreats and brought them into the laboratory, allowing them to construct new retreats. We found that (1) larvae can construct more than one type of retreat, so variation in this behavior is not under strict genetic control; (2) larvae do not preferentially reconstruct their original retreat design, so these alternative behaviors apparently exhibit little heritability; and (3) larvae primarily construct each phenotype in a particular microhabitat (i.e., "tube" and "backstop" retreats are principally constructed on the downstream half of the snag, and "flush" retreats on the upstream-bottom quadrant) Therefore, the retreat polymorphism in M. carolina is phenotypically plastic and is controlled by microhabitat location or a correlated environmental variable. Most net-spinning caddisflies construct their nets in fairly specific microhabitats. However, behavioral plasticity allows M. carolina larvae to construct retreats all around a snag, thereby reducing potentially intense competition for space with other net-spinning caddisflies. Consequently, this may be the ultimate reason this polymorphism evolved. C1 Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Plague, GR (reprint author), Univ Arizona, Dept Ecol & Evolutionary Biol, Biol Sci W 310, Tucson, AZ 85721 USA. NR 35 TC 5 Z9 5 U1 0 U2 3 PU OXFORD UNIV PRESS INC PI CARY PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA SN 1045-2249 J9 BEHAV ECOL JI Behav. Ecol. PD MAR-APR PY 2003 VL 14 IS 2 BP 221 EP 226 DI 10.1093/beheco/14.2.221 PG 6 WC Behavioral Sciences; Biology; Ecology; Zoology SC Behavioral Sciences; Life Sciences & Biomedicine - Other Topics; Environmental Sciences & Ecology; Zoology GA 657HV UT WOS:000181661100009 ER PT J AU Li, ZZ Ding, YS Gifford, A Fowler, JS Gatley, JS AF Li, ZZ Ding, YS Gifford, A Fowler, JS Gatley, JS TI Synthesis of structurally identical fluorine-18 and iodine isotope labeling compounds for comparative imaging SO BIOCONJUGATE CHEMISTRY LA English DT Article ID VIVO PROTEIN TRANSDUCTION; RESEARCH-AND-DEVELOPMENT; ANTISENSE OLIGONUCLEOTIDES; DELIVERY; CANCER; TAT; PET; OLIGODEOXYNUCLEOTIDE; RADIOHALOGENATION; SUBSTITUTION AB The synthesis of a benzophenone-based labeling compound designed for comparative imaging studies with both in vivo positron emission tomograph (PET) and single-photon computed tomography (SPECT) and ex vivo autoradiography is described. The new compound can be labeled with either F-18 or iodine radioisotopes to give two different radioisotopmers: N-[2-fluoro-5-(3-[I-131]iodobenzoyl)benzyl]-2-bromoacetamide (1) and N-[2-[F-18]fluoro-5-(3-iodobenzoyl)benzyl]-2-bromoacetamide (2). Compound 1 and 2 have a 2-bromoacetyl group, which can be used to conjugate with biomolecules through a nucleophilic substitution reaction. Compound 1 was synthesized from the corresponding tributyltin derivatives via an oxidative destannylation reaction, and compound 2 was prepared via a four-step radiosynthesis (nucleophilic aromatic substitution, reduction, oxidation, and alkylation) starting from 4-(N,N,N-trimethylammonio)-3-cyano-3'-iodobenzophenone triflate. A remarkably high radiochemical yield (> 90%) was achieved for the F-18 nucleophilic aromatic substitution under mild conditions (room temperature in less than 10 min), indicating the structural advantage of the designed molecule to facilitate the F-18 for trimethylammonium. substitution in the presence of two electron-withdrawing groups (nitrile and carbonyl). The overall radiosynthesis time for compound 2 is less than 3 h after end of bombardment (EOB) with an unoptimized radiochemical yield of about 2% (not decay corrected) and specific activity of 0.8 Ci/mumol at EOB. The radiolabeling precursors for compound 1 and 2 were synthesized via a carbon-carbon bond-forming reaction between 2-substituted-5-lithiobenzonitrile and 3-substituted benzaldehyde derivatives. Compounds 1 and 2 should allow us to label biomolecules with F-18 or iodine isotopes and gives structurally identical products, which are expected to have identical biological properties and should be useful for comparative imaging studies. C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11978 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11978 USA. RP Li, ZZ (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11978 USA. EM zizhong@bnl.gov NR 36 TC 8 Z9 8 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 1043-1802 J9 BIOCONJUGATE CHEM JI Bioconjugate Chem. PD MAR-APR PY 2003 VL 14 IS 2 BP 287 EP 294 DI 10.1021/bc025616n PG 8 WC Biochemical Research Methods; Biochemistry & Molecular Biology; Chemistry, Multidisciplinary; Chemistry, Organic SC Biochemistry & Molecular Biology; Chemistry GA 658JW UT WOS:000181718700006 PM 12643738 ER PT J AU Makowski, L Soares, A AF Makowski, L Soares, A TI Estimating the diversity of peptide populations from limited sequence data SO BIOINFORMATICS LA English DT Article ID LIBRARY; PHAGE; LIGANDS AB Motivation: Combinatorial libraries of peptides such as those displayed on the surface of a bacteriophage particle have become widely used tools for characterizing protein-protein and protein-small molecule interactions. The quality of a library frequently depends on its completeness, or diversity-the proportion of possible sequences actually present in the library. The diversity of these libraries is frequently quoted on the basis of phage titers that provide little information about their completeness. Results: Here, an analytical expression for diversity is introduced and a method for estimating the diversity of a peptide library from the sequences of a limited number of the members of the library is demonstrated. The diversities of a number of computationally constructed and actual peptide libraries are estimated using this method. C1 Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA. Brookhaven Natl Lab, Dept Biol, Upton, NY 11973 USA. RP Makowski, L (reprint author), Argonne Natl Lab, Biosci Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Soares, Alexei/F-4800-2014 OI Soares, Alexei/0000-0002-6565-8503 NR 12 TC 24 Z9 24 U1 0 U2 9 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 1367-4803 J9 BIOINFORMATICS JI Bioinformatics PD MAR 1 PY 2003 VL 19 IS 4 BP 483 EP 489 DI 10.1093/bioinformatics/btg013 PG 7 WC Biochemical Research Methods; Biotechnology & Applied Microbiology; Computer Science, Interdisciplinary Applications; Mathematical & Computational Biology; Statistics & Probability SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology; Computer Science; Mathematical & Computational Biology; Mathematics GA 652ZL UT WOS:000181410700006 PM 12611803 ER PT J AU Malba, V Maxwell, R Evans, LB Bernhardt, AE Cosman, M Yan, K AF Malba, V Maxwell, R Evans, LB Bernhardt, AE Cosman, M Yan, K TI Laser-lathe lithography - a novel method for manufacturing nuclear magnetic resonance microcoils SO BIOMEDICAL MICRODEVICES LA English DT Article DE microcoil; NMR; electrodeposited photoresist; solenoid; saddle coil; PEPR ID NMR-SPECTROSCOPY; SAMPLES; DESIGN AB A novel 3-dimensional laser-lathe process for manufacturing magnetic resonance microcoils is presented. The process has been used to print coils on a variety of materials, including glass and Teflon. The dimensions of these coils can be varied easily to allow any number of different coil designs, including solenoids and saddle coils. In our fabrication process, capillary tubes sputter-coated with a thin titanium-copper multilayer are plated with a positive electrodeposited photoresist. The resist is exposed with a computer-controlled laser-lathe apparatus consisting of an argon-ion laser, an acousto-optic modulator, a movable aperture, a lead screw stage and a spindle stage. After exposure and development, copper is electrolytically deposited through the resist mask. Following copper deposition the resist mask is removed and the sputtered copper and titanium are etched away, leaving a microcoil firmly adhered to the capillary. The resistivity of the laser-lathe copper windings is 7.6% higher than the resistivity of hand-wound coils (1.85 muOmega-cm for laser-lathe copper compared with 1.72 muOmega-cm for bulk annealed copper). For laser-lathe and hand-wound microcoils of similar size and geometry, the coil quality factor, Q, of the laser patterned coils would be 7.6% lower than the hand-wound coils. Examples of C-13 NMR spectra obtained using laser-lathe coils are shown, and a relative improvement of 68 in the NMR sensitivity is calculated for a laser-lathe microcoil compared with a conventional 5 mm NMR sample tube. C1 Lawrence Livermore Natl Lab, Dept Engn, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Dept Chem & Mat Sci, Livermore, CA 94550 USA. Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94550 USA. Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA. RP Malba, V (reprint author), Lawrence Livermore Natl Lab, Dept Engn, 7000 E Ave,M-S L-270, Livermore, CA 94550 USA. NR 20 TC 26 Z9 26 U1 1 U2 7 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 1387-2176 J9 BIOMED MICRODEVICES JI Biomed. Microdevices PD MAR PY 2003 VL 5 IS 1 BP 21 EP 27 DI 10.1023/A:1024407231584 PG 7 WC Engineering, Biomedical; Nanoscience & Nanotechnology SC Engineering; Science & Technology - Other Topics GA 694JR UT WOS:000183771900003 ER PT J AU Gnanakaran, S Garcia, AE AF Gnanakaran, S Garcia, AE TI Folding of a highly conserved diverging turn motif from the SH3 domain SO BIOPHYSICAL JOURNAL LA English DT Article ID MOLECULAR-DYNAMICS SIMULATIONS; BETA-HAIRPIN FORMATION; PEPTIDE-FRAGMENTS; STAPHYLOCOCCAL NUCLEASE; ENERGY LANDSCAPE; SECONDARY STRUCTURE; COUPLING-CONSTANTS; PROTEIN STABILITY; COMPLETE SEQUENCE; AQUEOUS-SOLUTION AB Recent NMR structural characterization studies showed that a seven-residue segment (FKKGERL) from the src SH3 domain adopts the nativelike diverging type II beta-turn in aqueous solution in support of the prediction based on the I-sites library of sequence structural motifs. We study the conformational variability and folding/unfolding thermodynamics of this peptide in explicit solvent using replica-exchange molecular dynamics simulations, which greatly enhances the sampling of the conformational space. This pepticle samples three main free energy basins (nativelike, intermediate, and unfolded) separated by small barriers. The nativelike basin is fractionally populated (DeltaG(300K) = 0.4 kcal/mol) with structures that satisfy a subset of the NMR-derived constraints. The intrinsic stability of the diverging turn is examined in relationship to the nature of three specific contacts: a turn-hydrogen bond, a mainchain-to-sidechain hydrogen bond, and an end-to-end hydrophobic contact. We have carried out simulations of mutants at the highly conserved GE positions in the sequence. The mutation E5D destabilizes the isolated diverging turn motif, contrary to the observation that this mutation stabilizes the fyn SH3 domain. The G4T mutation also destabilizes the isolated diverging turn; however, the extent of destabilization is smaller than that of the reverse mutation in the drk SH3. C1 Los Alamos Natl Lab, Theoret Biol & Biophys Grp, Los Alamos, NM 87545 USA. RP Gnanakaran, S (reprint author), Los Alamos Natl Lab, Theoret Biol & Biophys Grp, T10,MS K710, Los Alamos, NM 87545 USA. NR 68 TC 24 Z9 24 U1 0 U2 0 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD MAR PY 2003 VL 84 IS 3 BP 1548 EP 1562 PG 15 WC Biophysics SC Biophysics GA 682ZY UT WOS:000183123000011 PM 12609860 ER PT J AU Shroll, RM Straatsma, TP AF Shroll, RM Straatsma, TP TI Molecular basis for microbial adhesion to geochemical surfaces: Computer simulation of Pseudomonas aeruginosa adhesion to goethite SO BIOPHYSICAL JOURNAL LA English DT Article ID CRYSTALLINE IRON(III) OXIDES; STATICS CALCULATIONS; BIOREMEDIATION; REDUCTION; REMOVAL; MICROORGANISMS; DYNAMICS; MEMBRANE; BINDING; METALS AB The adhesion of Pseudomonas aeruginosa to the goethite mineral is investigated using classical molecular simulation. A fragment model for goethite has been integrated into a fully atomistic membrane model. Properties for the resulting system are evaluated for a 1.5-ns simulation in the isothermal-isobaric ensemble. The response of the membrane to the presence of the mineral is investigated. Radial distribution functions are used to present an average picture of the hydrogen bonding. Orientational vectors, assigned to the saccharide groups, reveal the extent of the mineral's perturbations on the membrane. Significant structural changes were observed for the outermost saccharide groups, several of which rotate to form hydrogen bonds with the mineral surface. The structure of the inner core, and the corresponding integrity of the membrane, is maintained. The mineral surface dehydrates slightly in the presence of the membrane as saccharide hydroxyl groups compete with water molecules for hydrogen-bonding sites on its surface. C1 Pacific NW Natl Lab, Biol Sci Div, Richland, WA 99352 USA. RP Straatsma, TP (reprint author), POB 999,MS K1-92, Richland, WA 99352 USA. NR 38 TC 16 Z9 16 U1 0 U2 7 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD MAR PY 2003 VL 84 IS 3 BP 1765 EP 1772 PG 8 WC Biophysics SC Biophysics GA 682ZY UT WOS:000183123000029 PM 12609878 ER PT J AU Yang, L Huang, HW AF Yang, L Huang, HW TI A rhombohedral phase of lipid containing a membrane fusion intermediate structure SO BIOPHYSICAL JOURNAL LA English DT Article ID X-RAY-DIFFRACTION; STALK MECHANISM; PORES; MODEL; SCATTERING; ENERGETICS; TRANSITION; ASSEMBLIES; BILAYERS; MAGAININ AB We constructed the electron density distribution from the x-ray diffraction of a phase of phospholipid that exhibited rhombohedral symmetry. To determine the phases of the diffraction amplitudes, we first extended the well-known one-dimensional swelling method for planar bilayers to a three-dimensional method applicable to a layered system containing in-plane structures, such as rhombohedral structures. The complete phase determination was accomplished by a combination of the swelling method and Luzzati's pattern recognition method. The constructed electron density distribution showed that in each unit cell, two apposed monolayers merged across the water layer and developed into an hourglass structure consistent with a postulated membrane fusion intermediate state called a stalk. The observation of the stalk structure lends a strong support to the stalk hypothesis for membrane fusion and opens a way to measure the structural parameters in the fusion pathway. C1 Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA. Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA. RP Huang, HW (reprint author), Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA. EM hwhuang@rice.edu RI Yang, Lin/D-5872-2013 OI Yang, Lin/0000-0003-1057-9194 FU NCRR NIH HHS [R01 RR014812, RR14812]; NIGMS NIH HHS [R01 GM055203, GM55203] NR 35 TC 66 Z9 67 U1 3 U2 8 PU CELL PRESS PI CAMBRIDGE PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA SN 0006-3495 EI 1542-0086 J9 BIOPHYS J JI Biophys. J. PD MAR PY 2003 VL 84 IS 3 BP 1808 EP 1817 PG 10 WC Biophysics SC Biophysics GA 682ZY UT WOS:000183123000033 PM 12609882 ER PT J AU Gulotta, M Rogatsky, E Callender, RH Dyer, RB AF Gulotta, M Rogatsky, E Callender, RH Dyer, RB TI Primary folding dynamics of sperm whale apomyoglobin: Core formation SO BIOPHYSICAL JOURNAL LA English DT Article ID MOLTEN GLOBULE INTERMEDIATE; MOLAR HEAT-CAPACITY; FAST EVENTS; SECONDARY STRUCTURE; INITIATION SITES; PEPTIDE MODELS; RELAXATION DYNAMICS; FTIR SPECTROSCOPY; CONTACT FORMATION; INFRARED-SPECTRA AB The structure, thermodynamics, and kinetics of heat-induced unfolding of sperm whale apomyoglobin core formation have been studied. The most rudimentary core is formed at pH* 3.0 and up to 60 mM NaCl. Steady state for ultraviolet circular dichroism and fluorescence melting studies indicate that the core in this acid-destabilized state consists of a heterogeneous composition of structures of similar to26 residues, two-thirds of the number involved for horse heart apomyoglobin under these conditions. Fluorescence temperature-jump relaxation studies show that there is only one process involved in Trp burial. This occurs in 20 mus for a 7degrees jump to 52degreesC, which is close to the limits placed by diffusion on folding reactions. However, infrared temperature jump studies monitoring native helix burial are biexponential with times of 5 mus and 56 mus for a similar temperature jump. Both fluorescence and infrared fast phases are energetically favorable but the slow infrared absorbance phase is highly temperature-dependent, indicating a substantial enthalpic barrier for this process. The kinetics are best understood by a multiple-pathway kinetics model. The rapid phases likely represent direct burial of one or both of the Trip residues and parts of the G- and H-helices. We attribute the slow phase to burial and subsequent rearrangement of a misformed core or to a collapse having a high energy barrier wherein both Trps are solvent-exposed. C1 Yeshiva Univ Albert Einstein Coll Med, Dept Biochem, Bronx, NY 10461 USA. Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Gulotta, M (reprint author), Yeshiva Univ Albert Einstein Coll Med, Dept Biochem, 1300 Morris Pk Ave, Bronx, NY 10461 USA. RI Rogatsky, Eduard/A-7989-2009 FU NIGMS NIH HHS [GM35183, GM53640, R01 GM053640] NR 49 TC 24 Z9 24 U1 0 U2 3 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD MAR PY 2003 VL 84 IS 3 BP 1909 EP 1918 PG 10 WC Biophysics SC Biophysics GA 682ZY UT WOS:000183123000044 PM 12609893 ER PT J AU Schmidt, M Rajagopal, S Ren, Z Moffat, K AF Schmidt, M Rajagopal, S Ren, Z Moffat, K TI Application of singular value decomposition to the analysis of time-resolved macromolecular X-ray data SO BIOPHYSICAL JOURNAL LA English DT Article ID PHOTOACTIVE YELLOW PROTEIN; INTERMEDIATE SPECTRA; PHOTOCYCLE KINETICS; ECTOTHIORHODOSPIRA-HALOPHILA; BACTERIORHODOPSIN PHOTOCYCLE; ANGSTROM RESOLUTION; DIFFERENCE SPECTRA; MOLECULAR MOVIE; CRYSTALLOGRAPHY; DIFFRACTION AB Singular value decomposition (SVD) is a technique commonly used in the analysis of spectroscopic data that both acts as a noise filter and reduces the dimensionality of subsequent least-squares fits. To establish the applicability of SVD to crystallographic data, we applied SVD to calculated difference Fourier maps simulating those to be obtained in a time-resolved crystallographic study of photoactive yellow protein. The atomic structures of one dark state and three intermediates were used in qualitatively different kinetic mechanisms to generate time-dependent difference maps at specific time points. Random noise of varying levels in the difference structure factor amplitudes, different extents of reaction initiation, and different numbers of time points were all employed to simulate a range of realistic experimental conditions. Our results show that SVD allows for an unbiased differentiation between signal and noise; a small subset of singular values and vectors represents the signal well, reducing the random noise in the data. Due to this, phase information of the difference structure factors can be obtained. After identifying and fitting a kinetic mechanism, the time-independent structures of the intermediates could be recovered. This demonstrates that SVD will be a powerful tool in the analysis of experimental time-resolved crystallographic data. C1 Tech Univ Munich, Phys Dept E17, D-85747 Garching, Germany. Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA. Argonne Natl Lab, BioCARS, Argonne, IL 60439 USA. Renz Res, Des Plaines, IL 60018 USA. RP Schmidt, M (reprint author), Tech Univ Munich, Phys Dept E17, D-85747 Garching, Germany. RI Rajagopal, Sudarshan/G-8975-2013; Schmidt, Marius/A-1537-2014 OI Rajagopal, Sudarshan/0000-0002-3443-5040; Schmidt, Marius/0000-0002-0962-9468 FU NCRR NIH HHS [RR07707, P41 RR007707]; NIGMS NIH HHS [GM36452, R01 GM036452, R37 GM036452] NR 40 TC 59 Z9 62 U1 1 U2 13 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD MAR PY 2003 VL 84 IS 3 BP 2112 EP 2129 PG 18 WC Biophysics SC Biophysics GA 682ZY UT WOS:000183123000063 PM 12609912 ER PT J AU Kaczmarski, K Zhou, DM Gubernak, M Guiochon, G AF Kaczmarski, K Zhou, DM Gubernak, M Guiochon, G TI Equivalent models of indanol isomers adsorption on cellulose tribenzoate SO BIOTECHNOLOGY PROGRESS LA English DT Article ID FRONTAL ANALYSIS; BAND PROFILES; DIFFUSION; ENANTIOMERS; PREDICTION; ISOTHERMS; LANGMUIR; BEHAVIOR; MIXTURES; BINARY AB The adsorption isotherm data of (R)- and (S)-1-indanol and of their racemic mixture on cellulose tribenzoate were measured by frontal analysis. The experimental data for each enantiomers were fitted to the single-component bilangmuir isotherm model. The competitive experimental data were fitted to the ideal adsorption solution model (IAS), the real adsorption solution model (RAS), and the bilangmuir thermodynamically consistent model (BTC). The mass transfer kinetic parameters were estimated from systematic comparisons between the experimental single-component band profiles and profiles calculated using the general rate model (GR) of chromatography coupled with the generalized Maxwell-Stefan equation (GMS). The validation of the isotherm model and of the mass transfer kinetic model was made by comparing the experimental band profiles obtained for solutions of the two enantiomers and those calculated with the competitive GR-GMS model. The excellent agreement observed proves that a combination of the BTC isotherm model and the GMS kinetic model, using the best values of the BTC and GMS parameters estimated from single component experiments, allows an excellent prediction of the binary isotherm and the binary mass transfer kinetics. C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Rzeszow Univ Technol, Fac Chem, PL-35959 Rzeszow, Poland. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. RP Guiochon, G (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. NR 26 TC 9 Z9 9 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 8756-7938 J9 BIOTECHNOL PROGR JI Biotechnol. Prog. PD MAR-APR PY 2003 VL 19 IS 2 BP 455 EP 463 DI 10.1021/bp020117m PG 9 WC Biotechnology & Applied Microbiology; Food Science & Technology SC Biotechnology & Applied Microbiology; Food Science & Technology GA 665LH UT WOS:000182121800032 PM 12675587 ER PT J AU Lee, G Spring, FA Parsons, SF Mankelow, TJ Peters, LL Koury, MJ Mohandas, N Anstee, DJ Chasis, JA AF Lee, G Spring, FA Parsons, SF Mankelow, TJ Peters, LL Koury, MJ Mohandas, N Anstee, DJ Chasis, JA TI Novel secreted isoform of adhesion molecule ICAM-4: potential regulator of membrane-associated ICAM-4 interactions SO BLOOD LA English DT Article ID ERYTHROID PROGENITOR CELLS; BLOOD-GROUP ANTIGENS; BONE-MARROW; TERMINAL MATURATION; ERYTHROBLASTS; DIFFERENTIATION; ERYTHROPOIETIN; EXPRESSION; PROTEIN; BINDING AB Intercellular adhesion molecule-4 (ICAM-4), a newly characterized adhesion molecule, is expressed early in human erythropoiesis and functions as a ligand for binding alpha(4)beta(1) and alpha(v) integrin-expressing cells. Within the bone marrow, erythroblasts surround central macrophages forming erythroblastic islands. Evidence suggests that these islands are highly specialized subcompartments where cell adhesion events, in concert with cytokines, play critical roles in regulating erythropoiesis and apoptosis. Since erythroblasts express alpha(4)beta(1) and ICAM-4 and macrophages exhibit av, ICAM-4 is an attractive candidate for mediating cellular interactions within erythroblastic islands. To determine whether ICAM-4 binding properties are conserved across species, we first cloned and sequenced the murine homologue. The translated amino acid sequence showed 68% overall identity with human ICAM-4. Using recombinant murine ICAM-4 extracellular domains, we discovered that hematopoietic alpha(4)beta(1)-expressing HEL cells and nonhematopoietic alpha(v)-expressing FLY cells adhered to mouse ICAM-4. Cell adhesion studies showed that FLY and HEL cells bound to mouse and human proteins with similar avidity. These data strongly suggest conservation of integrin-binding properties across species. Importantly, we characterized a novel second splice cDNA that would be predicted to encode an ICAM-4 isoform, lacking the membrane-spanning domain. Erythroblasts express both isoforms of ICAM-4. COS-7 cells transfected with green flourescent protein constructs of prototypic or novel ICAM-4 cDNA showed different cellular localization patterns. Moreover, analysis of tissue culture medium revealed that the novel ICAM-4 cDNA encodes a secreted protein. We postulate that secretion of this newly described isoform, ICAM-4S, may modulate binding of membrane-associated ICAM-4 and could thus play a critical regulatory role in erythroblast molecular attachments. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. Bristol Inst Transfus Sci, Bristol, Avon, England. Jackson Lab, Bar Harbor, ME 04609 USA. Vanderbilt Univ, Nashville, TN USA. New York Blood Ctr, New York, NY 10021 USA. RP Chasis, JA (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Bldg 74,1 Cyclotron Rd, Berkeley, CA 94720 USA. FU NHLBI NIH HHS [HL31579, R01 HL064885]; NIDDK NIH HHS [DK32094, DK56267, DK26263] NR 37 TC 25 Z9 28 U1 0 U2 0 PU AMER SOC HEMATOLOGY PI WASHINGTON PA 1900 M STREET. NW SUITE 200, WASHINGTON, DC 20036 USA SN 0006-4971 J9 BLOOD JI Blood PD MAR 1 PY 2003 VL 101 IS 5 BP 1790 EP 1797 DI 10.1182/blood-2002-08-2529 PG 8 WC Hematology SC Hematology GA 648EE UT WOS:000181136200020 PM 12406883 ER PT J AU Percus, JK Percus, OE Markowitz, M Ho, DD Di Mascio, M Perelson, AS AF Percus, JK Percus, OE Markowitz, M Ho, DD Di Mascio, M Perelson, AS TI The distribution of viral blips observed in HIV-1 infected patients treated with combination antiretroviral therapy SO BULLETIN OF MATHEMATICAL BIOLOGY LA English DT Article ID IMMUNODEFICIENCY-VIRUS INFECTION; DRUG-RESISTANCE; PLASMA; CELL; REPLICATION; DECAY; RNA; PERSISTENCE; ZIDOVUDINE; INDINAVIR AB Human immunodeficiency virus type 1 (HIV-1) infected patients treated with combination antiretroviral therapy frequently have the level of HIV-1 RNA detectable in plasma driven below the lower limit of detection of current assays, 50 copies ml(-1). Patients may continue to exhibit viral loads (VLs) below the assay limit for years, yet on some occasions the VL may be above the limit of detection. Whether these 'blips' in VL are simply assay errors or are indicative of intermittent episodes of increased viral replication is of great clinical concern. By analyzing the occurrence of viral blips in 123 treated HIV-infected patients, we show that patients do not share a common probability distribution of blip amplitude and thus reject the hypothesis that blips are solely due to assay variation. (C) 2003 Society for Mathematical Biology. Published by Elsevier Science Ltd. All rights reserved. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NYU, Courant Inst Math Sci, New York, NY 10012 USA. Rockefeller Univ, Aaron Diamond AIDS Res Ctr, New York, NY 10016 USA. RP Perelson, AS (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. FU NIAID NIH HHS [AI47033, AI28433, AI40387] NR 24 TC 22 Z9 22 U1 0 U2 0 PU ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0092-8240 J9 B MATH BIOL JI Bull. Math. Biol. PD MAR PY 2003 VL 65 IS 2 BP 263 EP 277 DI 10.1016/S0092-8240(02)00095-2 PG 15 WC Biology; Mathematical & Computational Biology SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational Biology GA 656FY UT WOS:000181599100004 PM 12675332 ER PT J AU Sturman, AP Bradley, S Drummond, P Grant, K Gudiksen, P Kossmann, M McGowan, HA Oliphant, A Owens, IF Powell, S Spronken-Smith, R Zawar-Reza, P AF Sturman, AP Bradley, S Drummond, P Grant, K Gudiksen, P Kossmann, M McGowan, HA Oliphant, A Owens, IF Powell, S Spronken-Smith, R Zawar-Reza, P TI The Lake Tekapo Experiment (LTEX) - An investigation of atmospheric boundary layer processes in complex terrain SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article ID REGIONAL-SCALE FLOWS; NEW-ZEALAND; SOUTHERN ALPS; SEA-BREEZE; MOUNTAINOUS TERRAIN; WIND SYSTEMS; BASIN; EVOLUTION; VALLEY; TEMPERATURE C1 Univ Canterbury, Dept Geog, Christchurch 1, New Zealand. Univ Auckland, Dept Phys, Auckland 1, New Zealand. Lawrence Livermore Natl Lab, Livermore, CA USA. Univ Queensland, Dept Geog, Brisbane, Qld, Australia. RP Sturman, AP (reprint author), Univ Canterbury, Dept Geog, Private Bag 4800, Christchurch 1, New Zealand. OI Sturman, Andrew/0000-0002-2103-3616; Spronken-Smith, Rachel/0000-0002-0630-8909 NR 38 TC 14 Z9 15 U1 0 U2 4 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD MAR PY 2003 VL 84 IS 3 BP 371 EP 380 DI 10.1175/BAMS-84-3-371 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA 662WC UT WOS:000181971100017 ER PT J AU Heiken, G Ort, M Valentine, G AF Heiken, G Ort, M Valentine, G TI Obituary to Richard V. Fisher SO BULLETIN OF VOLCANOLOGY LA English DT Biographical-Item C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. No Arizona Univ, Dept Geol, Flagstaff, AZ 86011 USA. No Arizona Univ, Ctr Environm Sci & Educ, Flagstaff, AZ 86011 USA. RP Heiken, G (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 1 TC 1 Z9 1 U1 0 U2 1 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 0258-8900 J9 B VOLCANOL JI Bull. Volcanol. PD MAR PY 2003 VL 65 IS 2-3 BP 221 EP 222 DI 10.1007/s00445-002-0272-8 PG 2 WC Geosciences, Multidisciplinary SC Geology GA 665CG UT WOS:000182101600010 ER PT J AU Hendriks, BS Opresko, LK Wiley, HS Lauffenburger, D AF Hendriks, BS Opresko, LK Wiley, HS Lauffenburger, D TI Coregulation of epidermal growth factor receptor/human epidermal growth factor receptor 2 (HER2) levels and locations: Quantitative analysis of HER2 overexpression effects SO CANCER RESEARCH LA English DT Article ID MAMMARY EPITHELIAL-CELLS; HUMAN-BREAST-CANCER; ERBB SIGNALING NETWORK; TYROSINE KINASES; EGF RECEPTORS; INTRACELLULAR TRAFFICKING; POSTENDOCYTIC TRAFFICKING; ENDOSOMAL RETENTION; ENDOCYTIC SYSTEM; DOWN-REGULATION AB Elevated expression of human epidermal growth factor receptor 2 (HER2) is known to alter cell signaling and behavioral responses implicated in tumor progression. However, multiple diverse mechanisms may be involved in these overall effects, including signaling by HER2 itself, modulation of signaling by epidermal growth factor receptor (EGFR), and modification of trafficking dynamics for both EGFR and HER2. Because these processes are so tightly interrelated, the net effect of HER2 overexpression is difficult to reliably attribute to any single particular mechanism. To take an important first step toward dissecting the effects of HER2 overexpression on cell responses in terms of the various specific underlying mechanisms, we have developed and validated a quantitative model of the relevant trafficking processes. We then use our model for successful prediction of EGFR and HER2 level and location changes attributable to HER2 overexpression in 184A1 human mammary epithelial cells expressing a series of HER2 levels by retroviral infection. Model predictions are based on our independent experimental measurement of key trafficking parameters for both EGFR and HER2. In terms of trafficking processes, HER2 overexpression reduces the EGFR internalization rate constant and increases the fraction of EGFR recycled. Consequently, our model successfully predicts that HER2 increases the overall level of activated EGFR by both enhancing its recycling and reducing its internalization, but it increases activated EGFR localization at the cell surface almost solely by its reduction of internalization. Furthermore, the model also successfully predicts the effects of monoclonal antibody 2C4, which interferes with HER2/EGFR heterodimerization, on EGFR and HER2 levels and compartmental locations. We anticipate that this model should ultimately be useful in parsing the relative contributions of direct effects of HER2 via signaling vis-a-vis indirect effects of HER2 via modification of EGFR signaling. C1 MIT, Dept Chem Engn, Biol Engn Div, Cambridge, MA 02139 USA. MIT, Canc Res Ctr, Cambridge, MA 02139 USA. Pacific NW Natl Lab, Environm & Hlth Sci Div, Richland, WA 99352 USA. RP Lauffenburger, D (reprint author), MIT, Dept Chem Engn, Biol Engn Div, 56-341, Cambridge, MA 02139 USA. OI Wiley, Steven/0000-0003-0232-6867 FU NCI NIH HHS [CA-88865]; NIGMS NIH HHS [GM-62575] NR 56 TC 80 Z9 81 U1 2 U2 8 PU AMER ASSOC CANCER RESEARCH PI BIRMINGHAM PA PO BOX 11806, BIRMINGHAM, AL 35202 USA SN 0008-5472 J9 CANCER RES JI Cancer Res. PD MAR 1 PY 2003 VL 63 IS 5 BP 1130 EP 1137 PG 8 WC Oncology SC Oncology GA 651PC UT WOS:000181327700034 PM 12615732 ER PT J AU Chou, YC Uehara, N Lowry, JR Shyamala, G AF Chou, YC Uehara, N Lowry, JR Shyamala, G TI Mammary epithelial cells of PR-A transgenic mice exhibit distinct alterations in gene expression and growth potential associated with transformation SO CARCINOGENESIS LA English DT Article ID PROGESTERONE-RECEPTOR-A; IN-SITU LOCALIZATION; CYCLIN D1; GLAND DEVELOPMENT; BREAST-CANCER; CDK INHIBITORS; ESTROGEN; FORM; P21 AB Expression of the 'A' and W forms of progesterone receptor (PR), in an appropriate ratio is critical for normal mammary development. As such, mammary glands of PR-A transgenic mice, carrying additional 'A' form of PR as transgene, exhibit morphological and histological characteristics associated with transformation. Accordingly, in the present studies, we analyzed these mammary glands for the presence of transformed epithelial cells by examining for alterations in gene expressions and growth potential, known to be associated with different stages of transformation. These studies reveal that, in the aberrant mammary epithelial structures, there is a decrease in p21 expression, an increase in cyclin D1 expression accompanied by an increase in cell proliferation, and a decrease in estrogen receptor alpha (ERalpha). In mammary ducts with normal histology, there is a decrease in p21 expression without an elevation in cyclin D1 expression or cell proliferation or a decrease in ERalpha expression. Treatment of PR-A transgenics with anti-progestin, mifepristone, has no effect on cell proliferation, cyclin D1 or ERalpha expression in the aberrant epithelial structures. In contrast, mifepristone restored the loss of p21 expression in the epithelial cells of both the ducts with normal histology and aberrant structures. Parallel studies reveal no apparent differences between the mammary glands of wild-type and PR-B transgenic mice, which carry additional PR 'B' form. Accordingly, we conclude that (i) mammary glands of PR-A transgenics contain at least two distinct populations of transformed epithelial cells, (ii) the epithelial cell population in the ducts with normal histology contain presumptive immortalized cells, indicative of early stages of transformation, (iii) the aberrant epithelial structures contain later stages of transformation associated with hyperplasias/pre-neoplasias and (iv) the transformation of mammary epithelial cells in PR-A transgenics might be due to a misregulation in progesterone action resulting from overexpression of PR 'A' form. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RP Shyamala, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA. RI Uehara, Norihisa/F-5933-2012 FU NCI NIH HHS [CA 66541] NR 29 TC 13 Z9 13 U1 0 U2 0 PU OXFORD UNIV PRESS PI OXFORD PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND SN 0143-3334 J9 CARCINOGENESIS JI Carcinogenesis PD MAR PY 2003 VL 24 IS 3 BP 403 EP 409 DI 10.1093/carcin/24.3.403 PG 7 WC Oncology SC Oncology GA 666AV UT WOS:000182154200007 PM 12663498 ER PT J AU Mahajan, D Gutlich, P Stumm, U AF Mahajan, D Gutlich, P Stumm, U TI The role of nano-sized iron particles in slurry phase Fischer-Tropsch synthesis SO CATALYSIS COMMUNICATIONS LA English DT Article DE nano catalysis; Fischer-Tropsch; slurry phase catalysis; hydrocarbon synthesis ID ULTRAFINE PARTICLES; CATALYST; ACTIVATION; COPPER AB The slurry phase Fischer-Tropsch (F-T) activity of three alpha-Fe2O3-based materials, two unsupported nano-sized, NANOCAT (3 nm) and BASF (20-80 nm), and a supported micron-sized (32.5 mum) UCI, are compared with respect to total hydrocarbon production from synthesis gas (H-2 /CO similar to 2/ 1) at 513 K. Low temperature Mossbauer spectra of the quenched slurry samples after 120 h on-line show that all three catalysts are essentially a mixture of oxide and carbide phases with magnetite (Fe3O4) being the dominant phase. TEM images of the quenched samples reveal unexpected particle characteristics. While both unsupported nano-sized materials essentially avoid expected agglomeration, the micron-sized UCI transforms into nano-sized material. These results suggest a crucial role of nano Fe during F-T synthesis. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Dept Energy Sci & Technol, Upton, NY 11793 USA. Univ Mainz, Inst Anorgan & Analyt Chem, D-55099 Mainz, Germany. SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. RP Mahajan, D (reprint author), Brookhaven Natl Lab, Dept Energy Sci & Technol, Upton, NY 11793 USA. EM dmahajan@bnl.gov NR 28 TC 28 Z9 29 U1 3 U2 19 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 PY 2003 VL 4 IS 3 BP 101 EP 107 DI 10.1016/S1566-7367(03)00002-5 PG 7 WC Chemistry, Physical SC Chemistry GA 657ZN UT WOS:000181697300004 ER PT J AU Grunes, J Zhu, J Yang, MC Somorjai, GA AF Grunes, J Zhu, J Yang, MC Somorjai, GA TI CO poisoning of ethylene hydrogenation over Pt catalysts: a comparison of Pt(111) single crystal and Pt nanoparticle activities SO CATALYSIS LETTERS LA English DT Article DE CO poisoning; ethylene hydrogenation over Pt; Pt/Al2O3 nanoparticles. ID INFRARED REFLECTION-ABSORPTION; SUPPORTED METAL-CATALYSTS; ELECTRON-BEAM LITHOGRAPHY; SUM-FREQUENCY GENERATION; STRUCTURE SENSITIVITY; GAS-PHASE; SURFACE; ADSORPTION; PRESSURE; OXIDATION AB The ethylene hydrogenation reaction was studied on two platinum model catalyst systems in the presence of carbon monoxide to examine poisoning effects. The catalysts were a Pt(111) single crystal and lithographically fabricated platinum nanoparticles deposited on alumina. Gas chromatographic results for Pt(111) show that CO adsorption reduces the turnover rate from 10(1) to 10(2) molecules/Pt site/s at 413 K, and the activation energy for hydrogenation on the poisoned surface becomes 20.2 +/- 0.1 kcal/mol. The activation energy for ethylene hydrogenation over Pt(111) in the absence of CO is 10.8 kcal/mol. The Pt nanoparticle system shows the same rate for the reaction as over Pt(111) in the absence of CO. When CO is adsorbed on the Pt nanoparticle array, the rate of the reaction is reduced from 10(2) to 10(0) nmol/s at 413 K. However, the activation energy remains largely unchanged. The Pt nanoparticles show an apparent activation energy for ethylene hydrogenation of 10.2 +/- 0.2 kcal/mol in the absence of CO and 11.4 +/- 0.6 kcal/mol on the CO-poisoned nanoparticle array. This is the first observation of a significant difference in catalytic behavior between Pt(111) and the Pt nanoparticle arrays. It is proposed that the active sites at the oxide metal interface are responsible for the difference in activation energies for the hydrogenation reaction over the two model platinum catalysts. C1 Univ Calif Berkeley, Dept Chem, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Div Sci Mat, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Somorjai, GA (reprint author), Univ Calif Berkeley, Dept Chem, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 29 TC 57 Z9 57 U1 4 U2 34 PU KLUWER ACADEMIC/PLENUM PUBL PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1011-372X J9 CATAL LETT JI Catal. Lett. PD MAR PY 2003 VL 86 IS 4 BP 157 EP 161 DI 10.1023/A:1022628404888 PG 5 WC Chemistry, Physical SC Chemistry GA 652TD UT WOS:000181395000002 ER PT J AU Liu, QY Ribecco-Lutkiewicz, M Carson, C Testolin, L Bergeron, D Kohwi-Shigematsu, T Walker, PR Sikorska, M AF Liu, QY Ribecco-Lutkiewicz, M Carson, C Testolin, L Bergeron, D Kohwi-Shigematsu, T Walker, PR Sikorska, M TI Mapping the initial DNA breaks in apoptotic Jurkat cells using ligation-mediated PCR SO CELL DEATH AND DIFFERENTIATION LA English DT Article DE MARs; BUR-binding proteins; proteolysis; endonucleolysis ID SCAFFOLD/MATRIX-ATTACHED REGIONS; MATRIX-ASSOCIATED-REGION; BINDING PROTEIN SATB1; A SAF-A; NUCLEAR MATRIX; POLY(ADP-RIBOSE) POLYMERASE; CHROMATIN CONDENSATION; STRAND BREAKS; IN-VIVO; FRAGMENTATION AB Apoptotic DNA degradation could be initiated by the accumulation of single-strand (ss) breaks in vulnerable chromatin regions, such as base unpairing regions (BURs), which might be preferentially targeted for degradation by both proteases and nucleases. We tested this hypothesis in anti-Fas-treated apoptotic Jurkat cells. Several nuclear proteins known for their association with both MARs and the nuclear matrix, that is, PARP, NuMA, lamin B and SATB1, were degraded, but the morphological rearrangement of the BUR-binding SATB1 protein was one of the earliest detected changes. Subsequently, we have identified several genes containing sequences homologous to the 25 bp BUR element of the IgH gene, a known SATB1-binding site, and examined the integrity of genomic DNA in their vicinity. Multiple ss breaks were found in close proximity to these sites relative to adjacent regions of DNA. Consistent with our prediction, the results indicated that the initiation of DNA cleavage in anti-Fas-treated Jurkat cells occurred within the BUR sites, which likely became accessible to endonucleases due to the degradation of BUR-binding proteins. C1 Natl Res Council Canada, Inst Biol Sci, Apoptosis Res Grp, Ottawa, ON K1A 0R6, Canada. Lawrence Berkeley Natl Lab, Dept Cell & Mol Biol, Berkeley, CA 94720 USA. RP Liu, QY (reprint author), Natl Res Council Canada, Inst Biol Sci, Apoptosis Res Grp, 1200 Montreal Rd,Bldg M-54, Ottawa, ON K1A 0R6, Canada. NR 57 TC 19 Z9 19 U1 0 U2 3 PU NATURE PUBLISHING GROUP PI LONDON PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND SN 1350-9047 J9 CELL DEATH DIFFER JI Cell Death Differ. PD MAR PY 2003 VL 10 IS 3 BP 278 EP 289 DI 10.1038/sj.cdd.4401146 PG 12 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 674HZ UT WOS:000182632500002 PM 12700628 ER PT J AU Jankowiak, R Markushin, Y Cavalieri, EL Small, GJ AF Jankowiak, R Markushin, Y Cavalieri, EL Small, GJ TI Spectroscopic characterization of the 4-hydroxy catechol estrogen quinones-derived GSH and N-acetylated Cys conjugates SO CHEMICAL RESEARCH IN TOXICOLOGY LA English DT Article ID LINE-NARROWING SPECTROSCOPY; DNA-ADDUCTS; HORSERADISH-PEROXIDASE; POTENTIAL BIOMARKERS; INITIATED CANCER; HAMSTERS; URINE; IDENTIFICATION; RADICALS; TISSUE AB Estrogens, including the natural hormones estrone (E-1) and estradiol (E-2) are thought to be involved in tumor induction. Specifically, catechol estrogen quinones (CEQs) derived from the catechol estrogens 4-hydroxyestrone (4-OHE1) and 4-hydroxyestradiol (4-OHE2) react with DNA and form DNA adducts (Cavalieri, E. L., et al. (1997) Proc. Natl Acad. Sci. U.S.A. 94, 10037). CEQs are also conjugated with GSH, a reaction that prevents damage to DNA, providing biomarkers of exposure to CEQs. Current detection limits for these analytes by HPLC with multichannel electrochemical detection are in the picomole range (Devanesan, P., et al. (2001) Carcinogenesis 22, 489). To improve the detection limit of CEQ-derived conjugates, spectrophotometric monitoring was investigated. Fluorescence and/or phosphorescence spectra of the 4-OHE1, 4-OHE2, Cys, N-acetylcysteine (NAcCys), 4-OHE1-2-SG, and 4-OHE2-2-SG conjugates and their decomposition products 4-OHE1-2-NAcCys and 4-OHE2-2-NAcCys were obtained at 300 and 77 K. It is shown that (i) 4-OHE1- and 4-OHE2-derived SG and NAcCys conjugates are weakly fluorescent at 300 K (with the emission maximum at 332 nm) but strongly phosphorescent at 77 K; (ii) Cys and NAcCys exhibit fluorescence and phosphorescence only at 77 K; and (iii) 4-OHE1 and 4-OHE2 are weakly fluorescent at 300 and 77 K and not phosphorescent. The phosphorescence spectra of SG and NAcCys conjugates are characterized by a weak origin band at similar to383 nm and two intense vibronic bands at 407 and 425 nm. After they are cooled from 300 to 77 K, the total luminescence intensity of SG and NAcCys conjugates increases by a factor of similar to150 predominantly due to phosphorescence enhancement. Theoretical calculations revealed, in agreement with the experimental data, that the lowest singlet (SI) and triplet (T-1) states of 4-OHE2-2-NAcCys are of n,pi* and pi,pi* character, respectively, leading to a large intersystem crossing yield and strong phosphorescence. The limit of detection (LOD) for CEQ-derived conjugates, based on phosphorescence measurements, is in the low femtomole range. The concentration LOD is approximately 10(-9) M. Therefore, we propose that capillary electrophoresis interfaced with low temperature phosphorescence detection can be used to test for human exposure to CEQs by analyzing urine. C1 Iowa State Univ Sci & Technol, US DOE, Ames Lab, Ames, IA 50011 USA. Iowa State Univ Sci & Technol, Dept Chem, Ames Lab, Ames, IA 50011 USA. Univ Nebraska, Med Ctr, Eppley Inst Res Canc, Omaha, NE 68198 USA. RP Jankowiak, R (reprint author), Iowa State Univ Sci & Technol, US DOE, Ames Lab, Ames, IA 50011 USA. FU NCI NIH HHS [2P01 CA49210-12] NR 45 TC 7 Z9 7 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0893-228X J9 CHEM RES TOXICOL JI Chem. Res. Toxicol. PD MAR PY 2003 VL 16 IS 3 BP 304 EP 311 DI 10.1021/tx020088p PG 8 WC Chemistry, Medicinal; Chemistry, Multidisciplinary; Toxicology SC Pharmacology & Pharmacy; Chemistry; Toxicology GA 661QL UT WOS:000181901200007 PM 12641430 ER PT J AU Jiang, Z Zhu, SJ Hamilton, JH Ramayya, AV Hwang, JK Zhang, Z Xu, RQ Xiao, SD Che, XL U, YN Ma, WC Cole, JD Drigert, MW Lee, IY Rasmussen, JO Luo, YX AF Jiang, Z Zhu, SJ Hamilton, JH Ramayya, AV Hwang, JK Zhang, Z Xu, RQ Xiao, SD Che, XL U, YN Ma, WC Cole, JD Drigert, MW Lee, IY Rasmussen, JO Luo, YX TI Collective bands in the neutron-rich Ru-110 nucleus SO CHINESE PHYSICS LETTERS LA English DT Article ID SPONTANEOUS FISSION; ISOTOPES AB High spin states in neutron-rich Ru-110 nucleus have been investigated by measuring high-fold prompt gamma-ray coincidence events of the spontaneous fission of Cf-252 with the Gammasphere detector array. The ground-state band and the gamma-vibrational band have been confirmed and extended with spin up to 18h and 13h, respectively. The other three side bands, two proposed as two-quasiparticle bands and one proposed as a four-quasiparticle band, have been observed for the first time. The possible configurations for the quasi-particle bands are discussed. The cranked shell model calculations show that Ru-110 nucleus may have oblate triaxial deformation with parameters beta(2) = -0.30 and gamma = 24degrees, and the band crossing in the yrast band is due to the alignment of a pair of h(11/2) neutrons. C1 Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. Vanderbilt Univ, Dept Phys, Nashville, TN 37235 USA. Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA. Mississippi State Univ, Dept Phys, Mississippi State, MS 39762 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Jiang, Z (reprint author), Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China. RI Jiang, Zhuo/E-3110-2010 NR 15 TC 20 Z9 23 U1 0 U2 0 PU CHINESE PHYSICAL SOC PI BEIJING PA P O BOX 603, BEIJING 100080, PEOPLES R CHINA SN 0256-307X J9 CHINESE PHYS LETT JI Chin. Phys. Lett. PD MAR PY 2003 VL 20 IS 3 BP 350 EP 353 PG 4 WC Physics, Multidisciplinary SC Physics GA 659QY UT WOS:000181790000010 ER PT J AU Parson, EA Corell, RW Barron, EJ Burkett, V Janetos, A Joyce, L Karl, TR MacCracken, MC Melillo, J Morgan, MG Schimel, DS Wilbanks, T AF Parson, EA Corell, RW Barron, EJ Burkett, V Janetos, A Joyce, L Karl, TR MacCracken, MC Melillo, J Morgan, MG Schimel, DS Wilbanks, T TI Understanding climatic impacts, vulnerabilities, and adaptation in the United States: Building a capacity for assessment SO CLIMATIC CHANGE LA English DT Review ID INCREASING CARBON-DIOXIDE; INTEGRATED ASSESSMENT; FOREST ECOSYSTEMS; EXPERT JUDGMENTS; CHANGING CLIMATE; GLOBAL CHANGE; TEMPERATURE; VARIABILITY; WEEDS; RICE AB Based on the experience of the U.S. National Assessment, we propose a program of research and analysis to advance capability for assessment of climate impacts, vulnerabilities, and adaptation options. We identify specific priorities for scientific research on the responses of ecological and socioeconomic systems to climate and other stresses: for improvement in the climatic inputs to impact assessments; and for further development of assessment methods to improve their practical utility to decision-makers. Finally, we propose a new institutional model for assessment, based principally on regional efforts that integrate observations, research, data, applications, and assessment on climate and linked environmental-change issues. The proposed program will require effective collaboration between scientists, resource managers, and other stakeholders, all of whose expertise is needed to define and prioritize key regional issues, characterize relevant uncertainties, and assess potential responses. While both scientifically and omanizationally challenging, such an integrated program holds the best promise of advancing Our capacity to manage resources and the economy adaptively under a changing climate. C1 Harvard Univ, John F Kennedy Sch Govt, Cambridge, MA 02138 USA. Amer Meteorol Soc, Washington, DC USA. Penn State Univ, University Pk, PA 16802 USA. USGS, Natl Wetlands Res Ctr, Lafayette, LA USA. World Resources Inst, Washington, DC 20006 USA. Forest Serv, USDA, Washington, DC USA. NOAA, Natl Climat Data Ctr, Washington, DC USA. US Global Change Res Program, Washington, DC USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Marine Biol Lab, Ctr Ecosyst, Woods Hole, MA 02543 USA. Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. Max Planck Inst Biogeochem, Jena, Germany. Natl Ctr Atmospher Res, Boulder, CO 80307 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. RP Parson, EA (reprint author), Harvard Univ, John F Kennedy Sch Govt, 79 JFK St, Cambridge, MA 02138 USA. NR 101 TC 32 Z9 35 U1 1 U2 17 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD MAR PY 2003 VL 57 IS 1-2 BP 9 EP 42 DI 10.1023/A:1022188519982 PG 34 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 651UJ UT WOS:000181340200003 ER PT J AU Reilly, J Tubiello, F McCarl, B Abler, D Darwin, R Fuglie, K Hollinger, S Izaurralde, C Jagtap, S Jones, J Mearns, L Ojima, D Paul, E Paustian, K Riha, S Rosenberg, N Rosenzweig, C AF Reilly, J Tubiello, F McCarl, B Abler, D Darwin, R Fuglie, K Hollinger, S Izaurralde, C Jagtap, S Jones, J Mearns, L Ojima, D Paul, E Paustian, K Riha, S Rosenberg, N Rosenzweig, C TI US agriculture and climate change: New results SO CLIMATIC CHANGE LA English DT Article ID UNITED-STATES; ADAPTATION; FREQUENCY; VARIABILITY; TEMPERATURE; IMPACTS; EVENTS; TRENDS; SECTOR AB We examined the impacts on U.S. agriculture of transient climate change as simulated by 2 global general circulation models focusing on the decades of the 2030s and 2090s. We examined historical shifts in the location of crops and trends in the variability of U.S. average crop yields, finding that non-climatic forces have likely dominated the north and westward movement of crops and the trends in yield variability. For the simulated future climates we considered impacts on crops, grazing and pasture, livestock, pesticide use, irrigation water supply and demand, and the sensitivity to international trade assumptions, finding that the aggregate of these effects were positive for the U.S. consumer but negative, due to declining crop prices, for producers. We examined the effects of potential changes in El Nino/Southern Oscillation (ENSO) and impacts on yield variability of changes in mean climate conditions. Increased losses occurred with ENSO intensity and frequency increases that could not be completely offset even if the events could be perfectly forecasted. Effects on yield variability of changes in mean temperatures were mixed. We also considered case study interactions of climate, agriculture, and the environment focusing on climate effects on nutrient loading to the Chesapeake Bay and groundwater depletion of the Edward's Aquifer that provides water for municipalities and agriculture to the San Antonio, Texas area. While only case studies, these results suggest environmental targets such as pumping limits and changes in farm practices to limit nutrient run-off Would need to be tightened if current environmental goals were to be achieved under the climate scenarios we examined. C1 MIT, Cambridge, MA 02139 USA. Goddard Inst Space Studies, New York, NY USA. Texas A&M Univ, College Stn, TX 77843 USA. Penn State Univ, University Pk, PA 16802 USA. USDA, Washington, DC 20250 USA. Illinois State Water Survey, Champaign, IL 61820 USA. Pacific NW Natl Lab, Richland, WA USA. Univ Florida, Gainesville, FL USA. Natl Ctr Atmospher Res, Boulder, CO 80307 USA. Colorado State Univ, Ft Collins, CO 80523 USA. Michigan State Univ, E Lansing, MI 48824 USA. Cornell Univ, Ithaca, NY 14853 USA. RP Reilly, J (reprint author), MIT, 77 Massachusetts Ave,E40-269, Cambridge, MA 02139 USA. RI McCarl, Bruce/E-9445-2011; Izaurralde, Roberto/E-5826-2012; Ojima, Dennis/C-5272-2016; Paustian, Keith/L-7593-2016 NR 50 TC 127 Z9 139 U1 6 U2 70 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD MAR PY 2003 VL 57 IS 1-2 BP 43 EP 69 DI 10.1023/A:1022103315424 PG 27 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA 651UJ UT WOS:000181340200004 ER PT J AU Margolis, SB Telengator, AM Williams, FA AF Margolis, SB Telengator, AM Williams, FA TI Influence of subsurface gaseous combustion on the burning of confined porous energetic materials SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE porous energetic materials; subsurface combustion; overpressure; convective burning ID QUASI-STEADY DEFLAGRATIONS; 2-PHASE FLOW; STABILITY; FLAMES; MODEL AB The combustion of porous energetic materials under confinement is generally characterized by a relatively rapid increase in the flame-propagation speed as the pressure difference, or overpressure, between the burned gases in the product region and the unburned gases deep within the pores of the unburned solid increases. The structure of the deflagration wave during this transition from conductive to convective burning is likely to correspond to a previously identified intrusive regime associated with higher overpressures. In this intrusive limit, the distributed gas-phase reactions proceed in the vicinity of the solid/gas interface, where surface reactions representing sublimation and pyrolysis occur. In this merged-flame regime, gaseous combustion can then either be confined to the purely gas-phase region beyond the solid surface or, depending on a number of factors, can penetrate inside the unburned porous material. A large-activation-energy analysis of the latter scenario is presented in this work to investigate the effects of gas-phase reaction permeation on the structure and propagation speed of quasi-steady deflagrations in confined porous propellants. The results of the current study are compared to the corresponding results that are obtained when, in the same intrusive regime, the gas flame is assumed not to penetrate into the subsurface region. It is demonstrated that the burning rate derived in the current scenario exhibits a higher sensitivity to increasing overpressure, because the heat release from gas-phase reactions within the porous solid permits additional preheating of the material. C1 Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA. Univ Calif San Diego, Dept Mech & Aerosp Engn, La Jolla, CA 92093 USA. RP Margolis, SB (reprint author), Sandia Natl Labs, Combust Res Facil, Livermore, CA 94550 USA. NR 24 TC 6 Z9 7 U1 0 U2 4 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PD MAR PY 2003 VL 175 IS 3 BP 421 EP 452 DI 10.1080/00102200390123908 PG 32 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA 648WZ UT WOS:000181175200001 ER PT J AU Lam, JSL Chan, CK Talbot, L Shepherd, IG AF Lam, JSL Chan, CK Talbot, L Shepherd, IG TI On the high-resolution modelling of a turbulent premixed open V-flame SO COMBUSTION THEORY AND MODELLING LA English DT Article ID FRONT-TRACKING METHOD; SIMULATION; TRANSPORT; SURGERY AB The clustering of marker nodes in regions of high curvature and the topological change of flame fronts have long been the main difficulties that limit conventional Lagrangian front-tracking methods from wide use in the modelling of turbulent premixed flame propagation. In this work, we introduce a robust numerical method called contour advection with surgery (CAS) to simulate, in wholly Lagrangian terms, the propagation and advection of the flame front in ambient turbulent flows. With a novel technique known as contour surgery, CAS can properly treat topological changes of the flame front. We apply CAS to study the problem of the two-dimensional turbulent premixed open V-flame. The computed velocity statistics and the estimated flame surface density are compared with corresponding laboratory measurements, and show satisfactory agreement for the trends and basic features. In addition, this method is found to be able to capture the counter-gradient diffusion effects and to reproduce the trends of distributions of local flame front curvature observed in experiments. C1 Hong Kong Polytech Univ, Dept Math Appl, Hong Kong, Hong Kong, Peoples R China. Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Combust Grp, Div Energy & Environm, Berkeley, CA 94720 USA. RP Chan, CK (reprint author), Hong Kong Polytech Univ, Dept Math Appl, Hong Kong, Hong Kong, Peoples R China. RI Chan, CK/E-9174-2012 OI Chan, CK/0000-0002-5248-0734 NR 28 TC 10 Z9 10 U1 0 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1364-7830 J9 COMBUST THEOR MODEL JI Combust. Theory Model. PD MAR PY 2003 VL 7 IS 1 BP 1 EP 28 AR PII S1364-7830(03)36024-3 DI 10.1088/1364-7830/7/1/301 PG 28 WC Thermodynamics; Energy & Fuels; Engineering, Chemical; Mathematics, Interdisciplinary Applications SC Thermodynamics; Energy & Fuels; Engineering; Mathematics GA 666MN UT WOS:000182181200001 ER PT J AU Torres, DJ O'Rourke, PJ Amsden, AA AF Torres, DJ O'Rourke, PJ Amsden, AA TI Efficient multicomponent fuel algorithm SO COMBUSTION THEORY AND MODELLING LA English DT Article ID DROPLET VAPORIZATION; COMBUSTION; MODEL AB We derive equations for multicomponent fuel evaporation in airborne fuel droplets and wall films, and implement the model into KIVA-3V. Temporal and spatial variations in liquid droplet composition and temperature are not modelled but solved for by discretizing the interior of the droplet in an implicit and computationally efficient way. We find that an interior discretization is necessary to correctly compute the evolution of the droplet composition. The details of the one-dimensional numerical algorithm are described. Numerical simulations of multicomponent evaporation are performed for single droplets and compared to experimental data. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Torres, DJ (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NR 26 TC 31 Z9 31 U1 3 U2 10 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1364-7830 J9 COMBUST THEOR MODEL JI Combust. Theory Model. PD MAR PY 2003 VL 7 IS 1 BP 67 EP 86 AR PII S1364-7830(03)36582-9 PG 20 WC Thermodynamics; Energy & Fuels; Engineering, Chemical; Mathematics, Interdisciplinary Applications SC Thermodynamics; Energy & Fuels; Engineering; Mathematics GA 666MN UT WOS:000182181200004 ER PT J AU Gorton, I Liu, A Brebner, P AF Gorton, I Liu, A Brebner, P TI Rigorous evaluation of COTS Middleware technology SO COMPUTER LA English DT Article AB Over the past decade, the adoption of commercial off-the-shelf middleware products across the software industry has gathered significant momentum. While COTS middleware products demonstrably solve many problems, their adoption and use are by no means straightforward. Competition among products that apparently offer identical services complicates the COTS middleware selection process, especially when competing products provide different implementations of standards-based technologies, such as Corba and Java 2 Enterprise Edition. The Middleware Technology Evaluation project represents a significant attempt to provide rigorously derived, indepth technology evaluations for use by middleware product adopters. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. CSIRO Math & Informat Sci, Software Architectures & Component Technol Grp, Adelaide, SA, Australia. RP Gorton, I (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM Ian.Gorton@pnl.gov; Annali@microsoft.com; paul.brebner@csiro.au RI Gorton, Ian/A-8247-2009 NR 10 TC 11 Z9 11 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0018-9162 J9 COMPUTER JI Computer PD MAR PY 2003 VL 36 IS 3 BP 50 EP + DI 10.1109/MC.2003.1185217 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA 653MT UT WOS:000181440900021 ER PT J AU Breslau, JA Jardin, SC AF Breslau, JA Jardin, SC TI A parallel algorithm for global magnetic reconnection studies SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article DE extended MHD; magnetic reconnection ID CHALLENGE; RESISTIVITY; PLASMA; FIELDS; LINE; MHD AB A new algorithm is presented for the computation of two-dimensional magnetic reconnection in plasmas. Both resistive magnetohydrodynamic (MHD) and two-fluid models are considered. It has been implemented on several parallel platforms and shows good scalability up to 32 CPUs for reasonable problem sizes. A fixed, non-uniform rectangular mesh is used to resolve the different spatial scales in the reconnection problem. The resistive MHD version uses an implicit/explicit hybrid method, while the two-fluid version uses an alternating-direction implicit (ADI) method with high-order artificial dissipation. The technique has proven useful for comparing several different theories of collisional and collisionless reconnection. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Breslau, JA (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RI Jardin, Stephen/E-9392-2010 NR 23 TC 5 Z9 5 U1 0 U2 1 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 MAR 1 PY 2003 VL 151 IS 1 BP 8 EP 24 AR PII S1001-4655(02)00693-8 DI 10.1016/S0010-4655(02)00693-8 PG 17 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 641ET UT WOS:000180732400002 ER PT J AU Maly, K Olariu, S Zhang, LP Rao, NW AF Maly, K Olariu, S Zhang, LP Rao, NW TI Fairness in DQDB revisited: a new solution SO COMPUTER SYSTEMS SCIENCE AND ENGINEERING LA English DT Article DE network protocols; fairness; slotted networks; DQDB ID PERFORMANCE; NETWORK; PROTOCOL AB The DQDB (Distributed Queue Dual Bus) system consists of a linear arrangement of nodes that communicate with each other using two contra-flowing buses; the nodes use an extremely simple protocol to send messages on these buses. This simple and elegant protocol has been found to be very challenging to analyse. It has been long recognized that DQDB suffers from inherent access unfairness problems and several solutions to this problem have been proposed in the literature. Unfortunately, none of these solutions is completely satisfactory. The main contribution of this work is to propose a new way of looking at fairness in a DQDB system. Our scheme is very simple and efficient to implement and compares favorably with the leading rate-controlled schemes proposed in the literature. In addition, simulation results show that in the presence of non-uniform loads, such as a file server being brought up, our scheme converges rapidly to a fair steady state. C1 Old Dominion Univ, Dept Comp Sci, Norfolk, VA 23529 USA. Oak Ridge Natl Lab, Ctr Engn Syst Adv Res, Oak Ridge, TN 37831 USA. RP Maly, K (reprint author), Old Dominion Univ, Dept Comp Sci, Norfolk, VA 23529 USA. OI Rao, Nageswara/0000-0002-3408-5941 NR 33 TC 0 Z9 0 U1 0 U2 0 PU C R L PUBLISHING LTD PI MARKET HARBOROUG PA PO BOX 31, MARKET HARBOROUG LE16 9RQ, LEICS, ENGLAND SN 0267-6192 J9 COMPUT SYST SCI ENG JI Comput. Syst. Sci. Eng. PD MAR PY 2003 VL 18 IS 2 BP 63 EP 70 PG 8 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA 701RH UT WOS:000184181700001 ER PT J AU Cottom, TL AF Cottom, TL TI Using swig to bind C++ to python SO COMPUTING IN SCIENCE & ENGINEERING LA English DT Editorial Material C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Cottom, TL (reprint author), POB 808 L-312, Livermore, CA 94551 USA. NR 0 TC 4 Z9 5 U1 0 U2 2 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 1521-9615 J9 COMPUT SCI ENG JI Comput. Sci. Eng. PD MAR-APR PY 2003 VL 5 IS 2 BP 88 EP U1 DI 10.1109/MCISE.2003.1182968 PG 10 WC Computer Science, Interdisciplinary Applications SC Computer Science GA 653MR UT WOS:000181440800015 ER PT J AU Murali, N Krishnan, V AF Murali, N Krishnan, V TI A primer for nuclear magnetic relaxation in liquids SO CONCEPTS IN MAGNETIC RESONANCE PART A LA English DT Article DE NMR; spin relaxation; semiclassical theory; equation of motion; motional limits; rate constants; autocorrelation; cross-correlation ID EULER-RODRIGUES PARAMETERS; CALRETICULIN P-DOMAIN; CROSS-CORRELATION; SPIN RELAXATION; NMR RELAXATION; TRANSVERSE RELAXATION; RESONANCE RELAXATION; PULSE EXPERIMENTS; GHZ NMR; SYSTEMS AB This article is a primer that is intended to serve as a concise source of information for researchers interested in learning relaxation aspects in NMR. Explicit expressions have been derived for the equation of motion of nuclear spins in the solution state. General expressions valid for all motional regimes, including anisotropy of spin interactions and molecular motions, are presented. intricate details that impact the validity of various expressions have been elaborated and efforts have been made to maintain consistent notation. The suitable examples given here should help in the understanding of the concepts developed in the theory. (C) 2003 Wiley Periodicals, Inc. C1 Varian NMR Syst, Palo Alto, CA 94304 USA. Univ Calif Lawrence Livermore Natl Lab L 448, Mol Biophys Grp, Biol & Biotechnol Res Program, Livermore, CA 94551 USA. RP Murali, N (reprint author), Varian NMR Syst, 3120 Hansen Way,MS D-298, Palo Alto, CA 94304 USA. NR 85 TC 10 Z9 12 U1 1 U2 13 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1043-7347 J9 CONCEPTS MAGN RESO A JI Concepts Magn. Reson. Part A PD MAR PY 2003 VL 17A IS 1 BP 86 EP 116 DI 10.1002/cmr.a.10060 PG 31 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy SC Chemistry; Physics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy GA 670MJ UT WOS:000182412300002 ER PT J AU VanderHeyden, WB Dendy, ED Padial-Collins, NT AF VanderHeyden, WB Dendy, ED Padial-Collins, NT TI CartaBlanca - a pure-Java, component-based systems simulation tool for coupled nonlinear physics on unstructured grids - an update SO CONCURRENCY AND COMPUTATION-PRACTICE & EXPERIENCE LA English DT Article; Proceedings Paper CT ACM 2001 Java Grande/International Symposium on Computing in Object-Oriented Parallel Environments CY JUN 02-04, 2001 CL STANFORD UNIV, STANFORD, CALIFORNIA HO STANFORD UNIV DE Java; high performance computing; object oriented design; finite volume; nonlinear solver; development environment AB This paper describes a component-based nonlinear physical system simulation prototyping package written entirely in Java using object-oriented design. The package provides scientists and engineers with a 'developer-friendly' software environment for large-scale computational algorithm and physical model development. The software design centers on the Jacobian-free Newton-Krylov solution method surrounding a finite-volume treatment of conservation equations. This enables a clean component-like implementation. We first provide motivation for the development of the software and then discuss software structure. The discussion includes a description of the use of Java's built-in thread facility that enables parallel, shared-memory computations on a wide variety of unstructured grids with triangular, quadrilateral, tetrahedral and hexahedral elements. We also discuss the use of Java's inheritance mechanism in the construction of a hierarchy of physics systems objects and linear and nonlinear solver objects that simplify development and foster software re-use. We provide a brief review of the Jacobian-free Newton-Krylov nonlinear system solution method and discuss how it fits into our design. Following this, we show results from example calculations and then discuss plans including the extension of the software to distributed-memory computer systems. Copyright (C) 2003 John Wiley Sons, Ltd. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Los Alamos Comp Sci Inst, Los Alamos, NM 87545 USA. RP VanderHeyden, WB (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NR 28 TC 8 Z9 8 U1 0 U2 1 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND SN 1532-0626 J9 CONCURR COMP-PRACT E JI Concurr. Comput.-Pract. Exp. PD MAR-APR PY 2003 VL 15 IS 3-5 BP 431 EP 458 DI 10.1002/cpe.662 PG 28 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA 652CF UT WOS:000181361400013 ER PT J AU Newton, MD AF Newton, MD TI Thermal and optical electron transfer involving transition metal complexes: insights from theory and computation SO COORDINATION CHEMISTRY REVIEWS LA English DT Review DE electron transfer; energy surfaces; electronic coupling elements; activation parameters ID PHOTOSYNTHETIC REACTION-CENTER; TRANSFER MATRIX-ELEMENTS; AB-INITIO CALCULATIONS; DONOR-ACCEPTOR INTERACTIONS; LIGAND CHARGE-TRANSFER; RHODOPSEUDOMONAS-VIRIDIS; REORGANIZATION ENERGY; DISTANCE DEPENDENCE; COUPLING ELEMENTS; THEORETICAL-EXAMINATION AB Current theories of electron transfer (ET) kinetics in conjunction with techniques of computational quantum chemistry are reviewed and applied to the analysis of thermal and optical ET processes involving transition metal complexes (TMCs). The roles of geometrical and electronic structure in controlling the relevant energetics and electronic coupling are discussed, and a number of limiting cases of kinetic behavior are displayed. Particular attention is paid to the formulation of the initial and final states involved in the ET, including the consequences of near-degeneracy and spin-orbit coupling. The roles of metal/ligand mixing and other types of 'mediation' of donor/acceptor coupling by molecular spacers are noted and illustrated with calculated results. An example of a detailed computation of activation parameters is also presented, including entropic effects and nuclear tunnelling. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. RP Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM newton@bnl.gov NR 107 TC 42 Z9 42 U1 1 U2 21 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0010-8545 EI 1873-3840 J9 COORDIN CHEM REV JI Coord. Chem. Rev. PD MAR PY 2003 VL 238 BP 167 EP 185 AR PII S0010-8545(02)00253-9 DI 10.1016/S0010-8545(02)00253-9 PG 19 WC Chemistry, Inorganic & Nuclear SC Chemistry GA 680BZ UT WOS:000182957600010 ER PT J AU Fonnesbeck, JE AF Fonnesbeck, JE TI Quantisation of hydrogen gas formed by aqueous corrosion of metallic uranium SO CORROSION ENGINEERING SCIENCE AND TECHNOLOGY LA English DT Article AB Three unirradiated experimental breeder reactor H blanket fuel samples containing depleted uranium metal (U-238) were corrosion tested in simulated J13 well water at 90degreesC. The purpose was to study the products of the aqueous corrosion of U metal, i.e. UO2, UO2+x, UH3, and H-2. The corrosion products were weighed for mass balance and analysed by X-ray powder diffraction. The data showed that UO2 powder, as well as higher oxides, i.e. UO2+x had formed. However, no UH3 was detected The corrosion rate of uranium metal in water at 90degreesC was inferred by collecting and quantitatively measuring the hydrogen gas evolved. CEST/2010 The author is in the Argonne National Laboratory-West, PO Box 2528, Idaho Falls, ID 83401, USA (jacqueline. fonnesbeck@anlw.anl.gov). Manuscript received 17 October 2002; accepted 23 December 2003. (C) 2003 Io M Communications Ltd. Published by Money for the Institute of Materials, Minerals and Mining. C1 Argonne Natl Lab, Idaho Falls, ID 83401 USA. RP Fonnesbeck, JE (reprint author), Argonne Natl Lab, POB 2528, Idaho Falls, ID 83401 USA. NR 8 TC 2 Z9 2 U1 2 U2 9 PU MANEY PUBLISHING PI LEEDS PA HUDSON RD, LEEDS LS9 7DL, ENGLAND SN 1478-422X J9 CORROS ENG SCI TECHN JI Corros. Eng. Sci. Technol. PD MAR PY 2003 VL 38 IS 1 BP 51 EP 56 DI 10.1179/147842203225001469 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA 689GW UT WOS:000183484100002 ER PT J AU Cui, HH Valdez, JG Steinkamp, JA Crissman, HA AF Cui, HH Valdez, JG Steinkamp, JA Crissman, HA TI Fluorescence lifetime-based discrimination and quantification of cellular DNA and RNA with phase-sensitive flow cytometry SO CYTOMETRY PART A LA English DT Article DE flow cytometry; DNA; RNA; propidium iodide; ethidium bromide; ethidium homodimer 1; fluorescence lifetime; phase-sensitive detection; phase-resolved separation ID ETHIDIUM-BROMIDE; INTERCALATING DYES; CELLS; BINDING; SIGNALS AB Background: Simultaneous measurement of cellular DNA and RNA content provides information for determination of the functional status of cells and, clinically, for the diagnosis and grading assessment of various tumors. Most current flow cytometric methods are based on resolving the fluorescence emission spectra of dyes that bind preferentially to either type of nucleic acid. However, several monochromatic nucleic acid-binding fluorochromes display resolvable differences in fluorescence lifetime when bound to DNA or RNA. The differences in the lifetime of one fluorescent probe provide an alternate means to distinguish the binding of one probe to these cellular macromolecules and to simultaneously measure their cellular contents. Methods: Three nucleic acid intercalating dyes, propidium iodide, ethidium bromide, and ethidium homodimer 1, were selected to study differences in fluorescence lifetimes when. bound to cellular DNA and RNA. Fixed HL-60 cells were treated with specific nucleases to initially determine the lifetime values of each dye when bound to the cellular DNA, RNA, or both. The lifetime values were then used as the signatures to resolve the cellular DNA and RNA contents in untreated cells. Results: All three dyes showed fluorescence lifetime differences when bound to RNase-treated, DNase-treated, or untreated cells. With these lifetime values, the fluorescence emissions from DNA, RNA, or DNA/RNA were resolved from untreated cells with the use of phase-sensitive detection. The lifetime differences resulting from the binding to either type of nucleic acid depended on the dye, the staining concentration, and the analysis condition. Conclusions: The lifetimes of the nucleic acid-binding fluorochromes were altered when binding to different macromolecules under different conditions. Phase-sensitive flow cytometry provided a unique means for simultaneous discrimination and quantification of subcellular macromolecules with one fluorescent probe. The data demonstrated the capabilities for resolving relative cellular DNA and RNA contents based on fluorescence lifetime. Published 2003 Wiley-liss, Inc. C1 Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Crissman, HA (reprint author), Los Alamos Natl Lab, Biosci Div, MS M888, Los Alamos, NM 87545 USA. FU NCI NIH HHS [CA92632]; NCRR NIH HHS [P41-RR01315, R01 RR07855] NR 26 TC 23 Z9 24 U1 2 U2 17 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA SN 0196-4763 J9 CYTOM PART A JI Cytom. Part A PD MAR PY 2003 VL 52A IS 1 BP 46 EP 55 DI 10.1002/cyto.a.10022 PG 10 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA 671EQ UT WOS:000182452700006 PM 12596251 ER PT J AU Ivashchenko, VI Turchi, PEA Shevchenko, VI Ivashchenko, LA Rusakov, GV AF Ivashchenko, VI Turchi, PEA Shevchenko, VI Ivashchenko, LA Rusakov, GV TI Tight-binding-molecular-dynamics investigation of the atomic and electronic structure properties of a-C, a-Si and a-SiC SO DIAMOND AND RELATED MATERIALS LA English DT Article; Proceedings Paper CT 13th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes, Nitrides and Sililcon Carbide (Diamond 2002) CY SEP 03-08, 2002 CL GRANADA, SPAIN SP AIXTRON AG, Elsevier, Inst Elect Engineers, iplas Innovat Plasma Syst GmbH, Jobin Yvon SA, Renishaw plc, Seki Techotron DE tetrahedral amorphous carbon; amorphous alloys; defect characterization; electronic states ID SILICON-CARBON ALLOYS; SHORT-RANGE DISORDER; AMORPHOUS-SILICON; PSEUDOPOTENTIALS; SIMULATIONS; ENERGETICS; LIQUID; STATES; MODEL; ORDER AB Molecular dynamics simulations based on the sp(3)s* tight-binding force model is employed to calculate the atomic and electronic properties of amorphous tetrahedral silicon (a-Si), carbon (a-C), and silicon carbide (a-SiC). The two sets of the amorphous samples are generated from melts and dilute vapors. The vapor-based samples of 128 atoms are less topologically ordered than the 64-atom samples obtained from the melts. The procedure is used to investigate the electronic distribution in the band gap region. The changes in the density of states caused by a presence of coordination defects, strongly distorted tetrahedral species (and homo-polar bonds in the case of a-SiC) are examined. The computed characteristics were found to be in rather good agreement with the results from ab initio pseudo-potential calculations. (C) 2002 Elsevier Science B.V. All rights reserved. C1 NAS Ukraine, Lab 61, Inst Problems Mat Sci, UA-03680 Kiev 142, Ukraine. Univ Calif Lawrence Livermore Natl Lab L353, Livermore, CA 94551 USA. RP Ivashchenko, VI (reprint author), NAS Ukraine, Lab 61, Inst Problems Mat Sci, Krzhyzhanovsky St 3, UA-03680 Kiev 142, Ukraine. NR 31 TC 2 Z9 2 U1 1 U2 6 PU ELSEVIER SCIENCE SA PI LAUSANNE PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND SN 0925-9635 J9 DIAM RELAT MATER JI Diam. Relat. Mat. PD MAR-JUL PY 2003 VL 12 IS 3-7 BP 993 EP 997 DI 10.1016/S0925-9635(02)00271-6 PG 5 WC Materials Science, Multidisciplinary SC Materials Science GA 678MX UT WOS:000182872000145 ER PT J AU Whitham, TG Young, WP Martinsen, GD Gehring, CA Schweitzer, JA Shuster, SM Wimp, GM Fischer, DG Bailey, JK Lindroth, RL Woolbright, S Kuske, CR AF Whitham, TG Young, WP Martinsen, GD Gehring, CA Schweitzer, JA Shuster, SM Wimp, GM Fischer, DG Bailey, JK Lindroth, RL Woolbright, S Kuske, CR TI Community and ecosystem genetics: A consequence of the extended phenotype SO ECOLOGY LA English DT Review DE community evolution; community genetics; community heritability; dominant species; ecosystems; extended phenotype; genetic variation; keystone species; minimum viable interacting population ID PLANT HYBRID ZONES; QUANTITATIVE TRAIT LOCI; GROUP SELECTION; PINYON PINE; PHRAGMITES-AUSTRALIS; CLONAL VARIATION; EUCALYPT HYBRID; SOFT SELECTION; HARD SELECTION; NORTH-AMERICA AB We present evidence that the heritable genetic variation within individual species, especially dominant and keystone species, has community and ecosystem consequences. These consequences represent extended phenotypes, i.e., the effects of genes at levels higher than the population. Using diverse examples from microbes to vertebrates, we demonstrate that the extended phenotype can be traced from the individuals possessing the trait, to the community, and to ecosystem processes such as leaf litter decomposition and N mineralization. In our development of a community genetics perspective, we focus on intraspecific genetic variation because the extended phenotypes of these genes can be passed from one generation to the next, which provides a mechanism for heritability. In support of this view, common-garden experiments using synthetic crosses of a dominant tree show that their progeny tend to support arthropod communities that resemble those of their parents. We also argue that the combined interactions of extended phenotypes contribute to the among-community variance in the traits of individuals within communities. The genetic factors underlying this among-community variance in trait expression, particularly those involving genetic interactions among species, constitute community heritability. These findings have diverse implications. (1) They provide a genetic framework for understanding community structure and ecosystem processes. The effects of extended phenotypes at these higher levels need not be diffuse; they may be direct or may act in relatively few steps, which enhances our ability to detect and predict their effects. (2) From a conservation perspective, we introduce the concept of the minimum viable interacting population (MVIP), which represents the size of a population needed to maintain genetic diversity at levels required by other interacting species in the community. (3) Genotype X environment interactions in dominant and keystone species can shift extended phenotypes to have unexpected consequences at community and ecosystem levels, an issue that is especially important as it relates to global change. (4) Documenting community heritability justifies a community genetics perspective and is an essential first step in demonstrating community evolution. (5) Community genetics requires and promotes an integrative approach, from genes to ecosystems, that is necessary for the marriage of ecology and genetics. Few studies span from genes to ecosystems, but such integration is probably essential for understanding the natural world. C1 No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA. No Arizona Univ, Dept Forest Ecosyst, Flagstaff, AZ 86011 USA. No Arizona Univ, Merriam Powell Ctr Environm Res, Flagstaff, AZ 86011 USA. Univ Wisconsin, Dept Entomol, Madison, WI 53706 USA. Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Whitham, TG (reprint author), No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA. EM Thomas.Whitham@nau.edu RI Lindroth, Richard/A-8538-2009 OI Lindroth, Richard/0000-0003-4587-7255 NR 117 TC 360 Z9 376 U1 19 U2 220 PU ECOLOGICAL SOC AMER PI WASHINGTON PA 1707 H ST NW, STE 400, WASHINGTON, DC 20006-3915 USA SN 0012-9658 J9 ECOLOGY JI Ecology PD MAR PY 2003 VL 84 IS 3 BP 559 EP 573 DI 10.1890/0012-9658(2003)084[0559:CAEGAC]2.0.CO;2 PG 15 WC Ecology SC Environmental Sciences & Ecology GA 656VF UT WOS:000181629500003 ER PT J AU Arehart, GB Chakurian, AM Tretbar, DR Christensen, JN McInnes, BA Donelick, RA AF Arehart, GB Chakurian, AM Tretbar, DR Christensen, JN McInnes, BA Donelick, RA TI Evaluation of radioisotope dating of Carlin-type deposits in the Great Basin, western North America, and implications for deposit genesis SO ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS LA English DT Review ID DISSEMINATED GOLD DEPOSITS; HUMBOLDT-COUNTY; INVISIBLE GOLD; CENTRAL NEVADA; TWIN-CREEKS; MINERALIZATION; UTAH; GEOCHEMISTRY; DISTRICT; GEOLOGY AB A variety of techniques have been used in attempts to date the mineralization in Carlin-type deposits in the Great Basin, with highly variable results. These techniques and results are reviewed in this paper, along with presentation of two new dates, for the Rodeo deposit on the Carlin trend and for the Barneys Canyon deposit in Utah. Complete resetting of sericite by hydrothermal fluids of the temperature and duration of hydrothermal activity that form Carlin-type deposits is considered highly unlikely. Therefore, dates from sericite are generally of questionable value unless that sericite can be shown to have formed during the same hydrothermal event during which An was deposited. For the deposits that have been investigated to date, sericite dates rarely, if ever, record the age of An mineralization. However, sericite ages do appear to record pre-Au events in some districts. Such events may have contributed to ground preparation and, to a much lesser extent, to the tenor of the ore. Fission-track and U/Th-He techniques provide important age constraints on mineralization in some districts but also suffer from a less than clear association with An. Rb-Sr dating of galkhaite, an Hg sulfosalt, provides the only direct age of mineralization, but galkhaite has been recognized in only a few locations (and dated in only two deposits). In a similar manner, adularia is contemporaneous with An at Twin Creeks, but Twin Creeks is the only Carlin-type deposit where adularia has been reported. Several other techniques (U-Pb, Re-Os, Sm-Nd) have been used in attempts to date the deposits but with limited success. The best available ages are those from preore and postore igneous events and those from galkhaite. Galkhaite from Getchell indicates a mineralization age of similar to 39 Ma and that from Rodeo (Carlin trend) indicates a mineralization age of 40 Ma. A new U/Th-He age (34 Ma) for apatite at Barneys Canyon suggests contemporaneity with the nearby Bingham porphyry Cu system. The most reliable data from several deposits and districts in the Great Basin indicate that Carlin-type mineralization occurred in a relatively narrow time interval, between 33 and 42 Ma. This interval coincides with the transition from a compressional to an extensional tectonic environment in the region. Although similar tectonic environments have existed at different times and places in western North America, no other Carlin-type mineralization is known to exist in the region. Therefore, although the age and tectonic environment of these deposits is now reasonably well constrained, it is clear that tectonic environment alone is insufficient to explain the genesis of Carlin-type deposits. Additional, perhaps unique, factors such as host rock geochemistry must have contributed to the development of these exceptional deposits. C1 Univ Nevada, Dept Geol Sci, Reno, NV 89557 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. CSIRO Ore Deposit Proc, Minerals Res Labs, N Ryde, NSW, Australia. Univ Idaho, Dept Geol & Geol Engn, Moscow, ID 83844 USA. RP Arehart, GB (reprint author), Univ Nevada, Dept Geol Sci, Reno, NV 89557 USA. EM arehart@unr.edu RI McInnes, Brent/B-7408-2013; Christensen, John/D-1475-2015 NR 106 TC 41 Z9 51 U1 1 U2 24 PU SOC ECONOMIC GEOLOGISTS, INC PI LITTLETON PA 7811 SCHAFFER PARKWAY, LITTLETON, CO 80127 USA SN 0361-0128 J9 ECON GEOL BULL SOC JI Econ. Geol. Bull. Soc. Econ. Geol. PD MAR-APR PY 2003 VL 98 IS 2 BP 235 EP 248 DI 10.2113/98.2.235 PG 14 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA 670PL UT WOS:000182417400002 ER PT J AU Luo, B Kim, J Ren, F Baca, AG Briggs, RD Gila, BP Onstine, AH Allums, KK Abernathy, CR Pearton, SJ Dwivedi, R Fogarty, TN Wilkins, R AF Luo, B Kim, J Ren, F Baca, AG Briggs, RD Gila, BP Onstine, AH Allums, KK Abernathy, CR Pearton, SJ Dwivedi, R Fogarty, TN Wilkins, R TI Effect of high-energy proton irradiation on DC characteristics and current collapse in MgO and Sc2O3 passivated AlGaN/GaN HEMTs SO ELECTROCHEMICAL AND SOLID STATE LETTERS LA English DT Article ID PERFORMANCE; TRANSISTORS AB MgO or Sc2O3 passivated AlGaN/GaN high electron mobility transistors (HEMTs) were irradiated with 40 MeV protons at a dose equivalent to similar to10 years in low-earth orbit. Very little change in drain-source current, transconductance, or diode ideality factor was observed under these conditions, but the reverse breakdown increased due to a decrease in channel electron density. In addition, no significant change was observed in the drain-source current under pulsed conditions, indicating that the proton irradiation did not alter the effectiveness of the MgO and Sc2O3 in passivating surface states. (C) 2003 The Electrochemical Society. C1 Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA. Prairie View A&M Univ, Ctr Appl Radiat Res, Prairie View, TX 77446 USA. RP Luo, B (reprint author), Univ Florida, Dept Chem Engn, Gainesville, FL 32611 USA. RI Kim, Jihyun/F-6940-2013 NR 19 TC 10 Z9 10 U1 0 U2 1 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 1099-0062 J9 ELECTROCHEM SOLID ST JI Electrochem. Solid State Lett. PD MAR PY 2003 VL 6 IS 3 BP G31 EP G33 DI 10.1149/1.1540791 PG 3 WC Electrochemistry; Materials Science, Multidisciplinary SC Electrochemistry; Materials Science GA 640VL UT WOS:000180708600013 ER PT J AU Wang, YG Zou, J Kucheyev, SO Williams, JS Jagadish, C Li, G AF Wang, YG Zou, J Kucheyev, SO Williams, JS Jagadish, C Li, G TI Nature of planar defects in ion-implanted GaN SO ELECTROCHEMICAL AND SOLID STATE LETTERS LA English DT Article ID DAMAGE AB Wurtzite GaN films bombarded with keV ions were studied by high-resolution transmission electron microscopy. Results showed that irradiation under a wide range of implant conditions (such as ion mass, dose, and implant temperature) led to the formation of planar defects which were parallel to the basal plane of the wurtzite structure. For all implant conditions studied, all planar defects observed in the similar to20 nm thick near-surface layers of GaN were interstitial in nature and had Burgers vectors of either 1/2[0001] or 1/6<2 (2) over bar 03>. Although the nature of these irradiation-produced planar defects appeared to be independent of implant conditions, irradiation parameters were found to influence the average defect size and density. In particular, larger planar defects were observed for higher irradiation temperatures. Possible physical mechanisms for the formation of such planar defects are discussed. (C) 2003 The Electrochemical Society. C1 Univ Sydney, Australian Key Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia. Chinese Acad Sci, Beijing Lab Electron Microscopy, Inst Phys, Beijing 100080, Peoples R China. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Australian Natl Univ, Dept Elect Mat Engn, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia. Ledex Corp, Kaohsiung, Taiwan. RP Wang, YG (reprint author), Univ Sydney, Australian Key Ctr Microscopy & Microanal, Sydney, NSW 2006, Australia. RI Zou, Jin/B-3183-2009 OI Zou, Jin/0000-0001-9435-8043 NR 13 TC 22 Z9 22 U1 1 U2 3 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 1099-0062 J9 ELECTROCHEM SOLID ST JI Electrochem. Solid State Lett. PD MAR PY 2003 VL 6 IS 3 BP G34 EP G36 DI 10.1149/1.1541257 PG 3 WC Electrochemistry; Materials Science, Multidisciplinary SC Electrochemistry; Materials Science GA 640VL UT WOS:000180708600014 ER PT J AU Jackman, R Schmerr, MJ AF Jackman, R Schmerr, MJ TI Analysis of the performance of antibody capture methods using fluorescent peptides with capillary zone electrophoresis with laser-induced fluorescence SO ELECTROPHORESIS LA English DT Article DE capillary electrophoresis; fluorescent peptides; immunoaffinity ID BLOOD-TRANSFUSION; PRION PROTEIN; CHROMATOGRAPHY; AFFINITY; TRANSMISSION; PURIFICATION; IMMUNOASSAY; BINDING AB A method to analyze the performance of an antibody capture method using fluorescent peptides by capillary zone electrophoresis using laser-induced fluorescence (CZE-LIF) for detection has been developed. Fluorescent peptides from the prion protein were synthesized and the corresponding antibodies were produced in rabbits against these peptides. The antibodies were used to capture the fluorescent peptides. The antibodies were then bound to protein A Sepharose. After elution, the amount of fluorescent peptide that was captured vs. the total amount placed in the assay was evaluated by CZE-LIF. Of the three peptides used in this evaluation, it was found that the recovery was approximately 25-35%. When the abnormal prion protein was prepared from scrapie-infected brain samples from hamsters and a sheep using the previously described extraction method and this method, the amount of abnormal prion protein that was measured in the fluorescence immunoassay correlated with amounts estimated from Western blot. We conclude that this method can be used to detect abnormal prion protein in a tissue sample. C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA. Vet Lab Agcy, Surrey, England. RP Schmerr, MJ (reprint author), Iowa State Univ, Ames Lab, 208 Gilman Hall, Ames, IA 50011 USA. EM mschmerr@ameslab.gov NR 20 TC 25 Z9 27 U1 0 U2 1 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 0173-0835 J9 ELECTROPHORESIS JI Electrophoresis PD MAR PY 2003 VL 24 IS 5 BP 892 EP 896 DI 10.1002/elps.200390112 PG 5 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA 658ZZ UT WOS:000181752800018 PM 12627452 ER PT J AU Kushler, M Vine, E York, D AF Kushler, M Vine, E York, D TI Using energy efficiency to help address electric systems reliability: an initial examination of 2001 experience SO ENERGY LA English DT Article AB This paper presents the highlights from a study of "reliability-focused energy-efficiency programs" implemented for the summer of 2001. We define these types of programs as those that were specifically designed, modified, or rapidly enlarged to address electric system reliability concerns. After first describing the methodology of the project, we present the results of a 50-State Screening Survey, followed by a description of 22 reliability-focused energy efficiency programs identified and selected as "case studies" in this project. We then discuss examples of three other different types of energy efficiency policy responses that were taken to address reliability concerns. Finally, we conclude by providing some preliminary aggregate impact estimates and outlining some lessons learned during the 2001 experience. (C) 2002 Elsevier Science Ltd. All rights reserved. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Energy Anal Dept, Environm Energy Tech Div, Berkeley, CA 94720 USA. Amer Council Energy Efficient Econ, Williamstown, MI 48895 USA. Amer Council Energy Efficient Econ, Madison, WI 53714 USA. RP Vine, E (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Energy Anal Dept, Environm Energy Tech Div, 1 Cyclotron Rd,MS 90-4000, Berkeley, CA 94720 USA. NR 6 TC 11 Z9 11 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 J9 ENERGY JI Energy PD MAR PY 2003 VL 28 IS 4 BP 303 EP 317 DI 10.1016/S0360-5442(02)00117-2 PG 15 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA 649MP UT WOS:000181212800002 ER PT J AU Vine, E AF Vine, E TI Opportunitites for promoting energy efficiency in buildings as an air quality compliance approach SO ENERGY LA English DT Article AB Increasing the energy efficiency of end-use equipment in the residential, commercial, and industrial sectors can reduce air pollution emissions and greenhouse gases significantly. Because energy efficiency is an effective means of reducing multi-pollutant emissions, it is important to ensure that energy efficiency is a fully engaged component of emission-reduction programs. However, while energy-efficiency measures are perceived by many stakeholders to be important options for improving air quality, some members in the air quality community are concerned about the ability of these measures to fit in a regulatory framework-in particular, the ability of emissions reductions from energy-efficiency measures to be real, quantifiable, certifiable, and enforceable. Hence, there are few air quality programs that include energy efficiency as a tool for complying with air quality regulations. This paper describes the connection between energy consumption and air quality, the potential role of energy-efficiency measures to meet air quality regulations, the barriers and challenges to the use of these measures in the air quality regulatory environment, and the opportunities that organizations could exploit in this area. (C) 2002 Elsevier Science Ltd. All rights reserved. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Energy Anal Dept, Environm Energy Tech Div, Berkeley, CA 94720 USA. RP Vine, E (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Energy Anal Dept, Environm Energy Tech Div, 1 Cyclotron Rd,MS 90-4000, Berkeley, CA 94720 USA. NR 68 TC 14 Z9 14 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0360-5442 J9 ENERGY JI Energy PD MAR PY 2003 VL 28 IS 4 BP 319 EP 341 DI 10.1016/S0360-5442(02)00112-3 PG 23 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA 649MP UT WOS:000181212800003 ER PT J AU Johnston, NAC Blake, DR Rowland, FS Elliott, S Lackner, KS Ziock, HJ Dubey, MK Hanson, HP Barr, S AF Johnston, NAC Blake, DR Rowland, FS Elliott, S Lackner, KS Ziock, HJ Dubey, MK Hanson, HP Barr, S TI Chemical transport modeling of potential atmospheric CO2 sinks SO ENERGY CONVERSION AND MANAGEMENT LA English DT Article DE carbon dioxide; modeling; sequestration ID CARBON-DIOXIDE; SEQUESTRATION; OCEAN; SIMULATION; INJECTION; OZONE; GAS AB The potential for carbon dioxide (CO2) sequestration via engineered chemical sinks is investigated using a three dimensional chemical transport model (CTM). Meteorological and chemical constraints for flat or vertical systems that would absorb CO2 from the atmosphere, as well as an example chemical system of calcium hydroxide (Ca(OH)(2)) proposed by Elliott et al. [Compensation of atmospheric CO2 buildup through engineered chemical sinkage, Geophys. Res. Lett. 28 (2001) 1235] are reviewed. The CTM examines land based deposition sinks, with 4degrees x 5degrees latitude/longitude resolution at various locations, and deposition velocities (nu). A maximum uptake of similar to20 Gton (10(15) g) C yr(-1) is attainable with nu > 5 cm s(-1) at a mid-latitude site. The atmospheric increase of CO2 (3 Gton yr(-1)) can be balanced by an engineered sink with an area of no more than 75,000 km(2) at nu of 1 cm s(-1). By building the sink upwards or splitting this area into narrow elements can reduce the active area by more than an order of magnitude as discussed in Dubey et al. [31]. (C) 2002 Elsevier Science Ltd. All rights reserved. C1 Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA. Los Alamos Natl Lab, Los Alamos, NM USA. RP Johnston, NAC (reprint author), Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA. RI Dubey, Manvendra/E-3949-2010 OI Dubey, Manvendra/0000-0002-3492-790X NR 31 TC 8 Z9 8 U1 1 U2 6 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0196-8904 J9 ENERG CONVERS MANAGE JI Energy Conv. Manag. PD MAR PY 2003 VL 44 IS 5 BP 681 EP 689 AR PII S0196-8904(02)00078-X DI 10.1016/S0196-8904(02)00078-X PG 9 WC Thermodynamics; Energy & Fuels; Mechanics SC Thermodynamics; Energy & Fuels; Mechanics GA 624VX UT WOS:000179783300003 ER PT J AU Chang, ACC Chuang, SSC Gray, M Soong, Y AF Chang, ACC Chuang, SSC Gray, M Soong, Y TI In-situ infrared study of CO2 adsorption on SBA-15 grafted with gamma-(aminopropyl)triethoxysilane SO ENERGY & FUELS LA English DT Article ID SURFACE MODIFICATION; MESOPOROUS SILICA; CARBON-DIOXIDE; TITANIUM AB CO2 adsorption/desorption on SBA-15 grafted with gamma-(aminopropyl)triethoxysilane (APTS) has been studied by infrared spectroscopy coupled with temperature-programmed desorption. SBA-15, a mesoporous silica material with a uniform pore size of 21 nm and a surface area of 200230 m(2)/g, provides an OH functional group for grafting of gamma-(aminopropyl)triethoxysilane. The amine-grafted SBA-15 adsorbed CO2 as carbonates and bicarbonates with a total capacity of 200-400, mumol/g. The heat of CO2 desorption was determined to be 3.2-4.5 kJ/mol in the presence of H2O and 6.6-11.0 kJ/mol in the absence of H2O during temperature-programmed desorption. Repeated CO2 adsorption/desorption CO2 cycles shifted the desorption peak temperature downward and decreased the heat of CO2 adsorption. C1 US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. Univ Akron, Dept Chem Engn, Akron, OH 44325 USA. RP Chuang, SSC (reprint author), US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA. EM schuang@uakron.edu OI Chang, Alex C.-C./0000-0003-3177-8643 NR 22 TC 246 Z9 262 U1 3 U2 60 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 MAR-APR PY 2003 VL 17 IS 2 BP 468 EP 473 DI 10.1021/ef020176h PG 6 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA 658MB UT WOS:000181723800032 ER PT J AU Griffith, MB Husby, P Hall, RK Kaufmann, PR Hill, BH AF Griffith, MB Husby, P Hall, RK Kaufmann, PR Hill, BH TI Analysis of macroinvertebrate assemblages in relation to environmental gradients among lotic habitats of California's Central Valley SO ENVIRONMENTAL MONITORING AND ASSESSMENT LA English DT Article DE biotic indices; California; canonical analyses; Central Valley Ecoregion; macroinvertebrate assemblages; metrics ID CANONICAL CORRESPONDENCE-ANALYSIS; RIVER; INDEX; FAUNA; ECOSYSTEMS; POLLUTION; WATERS; STATES; SITES AB We assessed relationships between environmental characteristics and macroinvertebrate assemblages in lotic habitats of California's Central Valley with community metric and multivariate statistical approaches. Using canonical ordination analyses, we contrasted results when assemblage structure was assessed with macroinvertebrate metrics, as suggested for use in indices of biotic integrity, or with genera abundances. Our objectives were to identify metrics or taxa diagnostic of lotic environmental stressors and compare the capacity of these approaches to detect stressors in order to suggest how they might be used to diagnose stressors. For macroinvertebrate metrics, redundancy analysis (RDA) extracted three axes correlated with channel morphology and substrates. For genera abundances, canonical correspondence analysis (CCA) extracted two axes correlated with soluble salts and with channel morphology and substrates but did not separate these gradients onto different axes. Cluster analyses identified five RDA and five CCA site groups, which exhibited differences for environmental variables, metrics, or genera abundances, and agreement between the analyses in partitioning of sites was greater than if sites were partitioned randomly. These approaches differ in their ability to detect environmental stressors, because they measure different aspects of assemblages and would be complementary in design of new metrics diagnostic of stressors. C1 US EPA, Reg Lab 9, Richmond, CA USA. US EPA, Reg 9, Water Div, San Francisco, CA USA. US EPA, ORD, NHEERL WED, Corvallis, OR 97333 USA. US EPA, Oak Ridge Inst Sci & Educ, ORD, NERL, Cincinnati, OH 45268 USA. US EPA, ORD, NHEERL MED, Duluth, MN 55804 USA. RP Griffith, MB (reprint author), US EPA, ORD, NCEA, MS-190, Cincinnati, OH 45268 USA. RI Hill, Brian/E-6799-2013 NR 46 TC 17 Z9 17 U1 0 U2 6 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0167-6369 J9 ENVIRON MONIT ASSESS JI Environ. Monit. Assess. PD MAR PY 2003 VL 82 IS 3 BP 281 EP 309 DI 10.1023/A:1021994318025 PG 29 WC Environmental Sciences SC Environmental Sciences & Ecology GA 635KZ UT WOS:000180399200004 PM 12602632 ER PT J AU Hopkins, WA Tatara, CP Brant, HA Jagoe, CH AF Hopkins, WA Tatara, CP Brant, HA Jagoe, CH TI Relationships between mercury body concentrations, standard metabolic rate, and body mass in eastern mosquitofish (Gambusia holbrooki) from three experimental populations SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article DE mercury; mosquitofish; respiration; standard metabolic rate; tolerance ID TROUT ONCORHYNCHUS-MYKISS; DEMOGRAPHIC RESPONSES; FISH; GENERATIONS; MORPHOLOGY; TOXICITY; COSTS; LAKE AB Eastern mosquitofish (Gambusia holbrooki) were sampled from three experimental populations (two Hg-exposed populations and one reference population) to determine whether transgenerational exposure (lifelong exposure of multiple generations) to Hg adversely affects standard metabolic rate (SMR). Mosquitofish subjected to lifelong Hg exposure accumulated significant concentrations of Hg in their tissues compared to fish from the reference population (mean: 3.89-4.13 vs 0.08 muHg/g wet mass, respectively). Less than 10% of the variability in Hg tissue concentrations could be explained by fish body mass, likely because of the short life span and/or dietary habits of this species. Despite the high body burdens of Hg in exposed fish, we found no significant difference in SMR among individuals from Hg-exposed or reference populations. Our findings contrast recent laboratory work describing elevated SMR in mosquitofish exposed to 100 mug/L dissolved inorganic Hg for 48 h. To account for contrasting results between studies, we hypothesize that acute exposure to dissolved inorganic Hg damages gill epithelium, resulting in increased metabolic rate, but that lifelong Hg exposure via trophic uptake of methyl mercury does not affect fish respiratory structures. Alternative hypotheses include the possibility that G. holbrooki is a species that can tolerate high body burdens of Hg or that more than four years of genetic isolation during Hg exposure (8-12 generations) resulted in selection for Hg-tolerant or -resistant individuals. C1 Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. NW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Manchester, WA 98353 USA. RP Hopkins, WA (reprint author), Univ Georgia, Savannah River Ecol Lab, Drawer E, Aiken, SC 29802 USA. NR 29 TC 15 Z9 16 U1 3 U2 11 PU SETAC PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3367 USA SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PD MAR PY 2003 VL 22 IS 3 BP 586 EP 590 DI 10.1897/1551-5028(2003)022<0586:RBMBCS>2.0.CO;2 PG 5 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA 647JE UT WOS:000181089000017 PM 12627646 ER PT J AU Verberne, HJ Sloof, GW Beets, AL Murphy, AM van Eck-Smit, BLF Knapp, FF AF Verberne, HJ Sloof, GW Beets, AL Murphy, AM van Eck-Smit, BLF Knapp, FF TI I-125-BMIPP and F-18-FDG uptake in a transgenic mouse model of stunned myocardium SO EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING LA English DT Article DE transgenic mouse model; blood flow; glucose metabolism; lipid metabolism; stunning ID REPERFUSED CANINE MYOCARDIUM; COLLATERAL-DEPENDENT MYOCARDIUM; OXYGEN-FREE-RADICALS; FATTY-ACIDS; IN-VIVO; POSTISCHEMIC MYOCARDIUM; BLOOD-FLOW; EMISSION TOMOGRAPHY; ISCHEMIC HEART; GLUCOSE-UPTAKE AB Reported metabolic patterns in myocardial stunning are not uniform. We investigated relative myocardial perfusion, glucose and fatty acid uptake using a technetium-99 hexakis-2-methoxyisobutyl-isonitrile (MIBI), fluorine-18 2-fluoro-2-deoxyglucose (FDG) and iodine-125 15-(p-iodo-phenyl)-3(R,S)-methylpentadecanoic acid (BMIPP) mixture, in a recently developed transgenic (TR) mouse model which mimics stunned myocardium. Twenty-seven mice - 14 TR and 13 age-matched wild type controls (C) - were divided into four groups: TR-fed, TR-fasted, C-fed and C-fasted. Animals were sacrificed 2 h after injection, tissue samples counted and percent-injected dose/gram tissue (% id/g) calculated for each radioisotope. Tissues were also Folch extracted and I-125 incorporation into the various lipid pools (TG, triglycerides; DG, diglycerides; FFA, free fatty acids; PL, phospholipids) was determined by thin-layer chromatography (TLC). The pooled data for each of the four groups (TR-fed vs C-fed and TR-fed vs C-fasted) showed no differences in myocardial blood flow (% MIBI id/g), glucose uptake (% FDG id/g) or fatty acid uptake (% BMIPP id/g). Only minor differences were observed in the incorporation of I-125-BMIPP into the myocardial TG, DG, FFA and PL lipid pools. However, significantly decreased myocardial FDG uptake was observed in a subset of fasted mice - four out of ten TR-fasted mice (3.4% vs 20.5% id/g) and three out of nine C-fasted mice (5.5% vs 30.6% id/g). The transgenic mouse model of stunned myocardium shows normal myocardial perfusion and overall intact myocardial glucose and myocardial fatty acid uptake as determined with clinically applicable radiolabelled analogues. These data are in line with the hypothesis that the contractile inefficiency in stunned myocardium is not linked to metabolic alterations but is associated with an insufficient chemical to mechanical energy coupling. C1 Univ Amsterdam, Acad Med Ctr, Dept Nucl Med, NL-1105 AZ Amsterdam, Netherlands. Oak Ridge Natl Lab, Nucl Med Program, Oak Ridge, TN USA. Johns Hopkins Univ, Dept Pediat, Baltimore, MD 21218 USA. Johns Hopkins Univ, Inst Mol Cardiobiol, Baltimore, MD 21218 USA. RP Verberne, HJ (reprint author), Univ Amsterdam, Acad Med Ctr, Dept Nucl Med, Meibergdreef 9, NL-1105 AZ Amsterdam, Netherlands. EM h.j.verbeme@amc.uva.nl FU NHLBI NIH HHS [HL-63038] NR 58 TC 8 Z9 8 U1 0 U2 2 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013 USA SN 1619-7070 J9 EUR J NUCL MED MOL I JI Eur. J. Nucl. Med. Mol. Imaging PD MAR PY 2003 VL 30 IS 3 BP 431 EP 439 DI 10.1007/s00259-002-0999-7 PG 9 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 660QK UT WOS:000181843700016 PM 12722739 ER PT J AU Urban, W Rzaca-Urban, T Schulz, N Durell, JL Phillips, WR Smith, AG Varley, BJ Ahmad, I AF Urban, W Rzaca-Urban, T Schulz, N Durell, JL Phillips, WR Smith, AG Varley, BJ Ahmad, I TI The strength of octupole correlations in neutron-rich Xe isotopes SO EUROPEAN PHYSICAL JOURNAL A LA English DT Article ID INTRINSIC REFLECTION ASYMMETRY; BARIUM ISOTOPES; NUCLEI; TRANSITION; ISOTONES; N=85; DEFORMATION; PARITIES; FISSION; BA-141 AB Excited levels in Xe-140 and Xe-142 nuclei, populated in the spontaneous fission of Cm-141, were studied by means of prompt gamma-ray spectroscopy, using EUROGAM2 array. We report the first observation of an octupole band in Xe-142 and extend the octupole band in Xe-140. Level schemes of Xe-140 and Xe-142 obtained in this work show patterns characteristic of ocupole-vibrational bands. Properties of octupole bands in Xe isotopes indicate that octupole correlations in these nuclei are lower than in the corresponding Ba nuclei. The electric dipole moment of Xe-142 was found to be larger than in other Xe isotopes, contrary to theoretical predictions. This may be due to the special role of the N = 88 neutron number. C1 Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland. CNRS, UMR7500, IN2P3, Inst Rech Subatom, F-67037 Strasbourg, France. Univ Strasbourg 1, F-67037 Strasbourg, France. Univ Manchester, Dept Phys & Astron, Schuster Lab, Manchester M13 9PL, Lancs, England. Argonne Natl Lab, Argonne, IL 60439 USA. RP Urban, W (reprint author), Univ Warsaw, Inst Expt Phys, Hoza 69, PL-00681 Warsaw, Poland. NR 17 TC 18 Z9 19 U1 0 U2 1 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 1434-6001 J9 EUR PHYS J A JI Eur. Phys. J. A PD MAR PY 2003 VL 16 IS 3 BP 303 EP 307 DI 10.1140/epja/i2002-10127-4 PG 5 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 666YV UT WOS:000182204800002 ER PT J AU Martinez, M Miquel, R AF Martinez, M Miquel, R TI Multi-parameter fits to the t(t)over-bar threshold observables at a future e(+)e(-) linear collider SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID PRODUCTION NEAR-THRESHOLD; QUARK PAIR PRODUCTION; MOMENTUM DISTRIBUTIONS; CROSS-SECTION; TOP; DECAY; MASS; QCD; PHYSICS; WIDTH AB A realistic study of the physics reach of a t (t) over bar threshold scan at a future e(+)e(-) linear collider is presented. The results obtained take into account experimental and, to a large extent, theoretical systematic errors, as well as beam effects. Because of the large correlations between the physical parameters that can be extracted from the threshold scan, a multi-parameter fit is seen as mandatory. It is shown that the top mass, the top width and alpha(S)(M-Z) can be extracted simultaneously with uncertainties around 20 MeV, 30 MeV and 0.0012, respectively, while the top Yukawa coupling can be measured, with the previous three parameters, to an uncertainty of about 35%, after assuming an external prior on alpha(S) of +/-0.001. C1 Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain. Lawrence Berkeley Lab, Div Phys, Berkeley, CA 94720 USA. RP Martinez, M (reprint author), Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain. OI Martinez Rodriguez, Manel/0000-0002-9763-9155 NR 34 TC 74 Z9 74 U1 0 U2 0 PU SPRINGER-VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 USA SN 1434-6044 J9 EUR PHYS J C JI Eur. Phys. J. C PD MAR PY 2003 VL 27 IS 1 BP 49 EP 55 DI 10.1140/epjc/s2002-01094-1 PG 7 WC Physics, Particles & Fields SC Physics GA 666BL UT WOS:000182155700005 ER PT J AU Chekanov, S Krakauer, D Magill, S Musgrave, B Repond, J Yoshida, R Mattingly, MCK Antonioli, P Bari, G Basile, M Bellagamba, L Boscherini, D Bruni, A Bruni, G Romeo, GC Cifarelli, L Cindolo, F Contin, A Corradi, M De Pasquale, S Giusti, P Iacobucci, G Margotti, A Nania, R Palmonari, F Pesci, A Sartorelli, G Zichichi, A Aghuzumtsyan, G Bartsch, D Brock, I Goers, S Hartmann, H Hilger, E Irrgang, P Jakob, HP Kappes, A Katz, UF Kind, O Paul, E Rautenberg, J Renner, R Schnurbusch, H Stifutkin, A Tandler, J Voss, KC Wang, M Weber, A Bailey, DS Brook, NH Cole, JE Foster, B Heath, GP Heath, HF Robins, S Rodrigues, E Scott, J Tapper, RJ Wing, M Capua, M Mastroberardino, A Schioppa, M Susinno, G Kim, JY Kim, YK Lee, JH Lim, IT Pac, MY Caldwell, A Helbich, M Liu, X Mellado, B Ning, Y Paganis, S Ren, Z Schmidke, WB Sciulli, F Chwastowski, J Eskreys, A Figiel, J Olkiewicz, K Stopa, P Zawiejski, L Adamczyk, L Bold, T Grabowska-Bold, I Kisielewska, D Kowal, AM Kowal, M Kowalski, T Przybycien, M Suszycki, L Szuba, D Szuba, J Kotasnski, A Slominski, W Bauerdick, LAT Behrens, U Bloch, I Borras, K Chiochia, V Dannheim, D Derrick, M Drews, G Fourletova, J Fox-Murphy, A Fricke, U Geiser, A Goebel, F Gottlicher, P Gutsche, O Haas, T Hain, W Hartner, GF Hillert, S Kotz, U Kowalski, H Kramberger, G Labes, H Lelas, D Lohr, B Mankel, R Melzer-Pellmann, IA Moritz, M Notz, D Petrucci, MC Polini, A Raval, A Schneekloth, U Selonke, F Wessoleck, H Wichmann, R Wolf, G Youngman, C Zeuner, W Viani, ALD Meyer, A Schlenstedt, S Barbagli, G Gallo, E Genta, C Pelfer, PG Bamberger, A Benen, A Coppola, N Bell, M Bussey, PJ Doyle, AT Glasman, C Hanlon, S Lee, SW Lupi, A McCance, GJ Saxon, DH Skillicorn, IO Gialas, I Bodmann, B Carli, T Holm, U Klimek, K Krumnack, N Lohrmann, E Milite, M Salehi, H Stonjek, S Wick, K Ziegler, A Ziegler, A Collins-Tooth, C Foudas, C Goncalo, R Long, KR Metlica, F Tapper, AD Cloth, P Filges, D Kuze, M Nagano, K Tokushuku, K Yamada, S Yamazaki, Y Barakbaev, AN Boos, EG Pokrovskiy, NS Zhautykov, BO Lim, H Son, D Barreiro, F Gonzalez, O Labarga, L del Peso, J Redondo, I Tassi, E Terron, J Vazquez, M Barbi, M Bertolin, A Corriveau, F Ochs, A Padhi, S Stairs, DG St-Laurent, M Tsurugai, T Antonov, A Danilov, P Dolgoshein, BA Gladkov, D Sosnovtsev, V Suchkov, S Dementiev, RK Ermolov, PF Golubkov, YA Katkov, II Khein, LA Korzhavina, IA Kuzmin, VA Levchenko, BB Lukina, OY Proskuryakov, AS Shcheglova, LM Vlasov, NN Zotkin, SA Bokel, C Engelen, J Grijpink, S Koffeman, E Kooijman, P Maddox, E Pellegrino, A Schagen, S Tiecke, H Tuning, N Velthuis, JJ Wiggers, L de Wolf, E Brummer, N Bylsma, B Durkin, LS Ling, TY Boogert, S Cooper-Sarkar, AM Devenish, RCE Ferrando, J Grzelak, G Matsushita, T Rigby, M Ruske, O Sutton, MR Walczak, R Brugnera, R Carlin, R Dal Corso, F Dusini, S Garfagnini, A Limentani, S Longhin, A Parenti, A Posocco, M Stanco, L Turcato, M Heaphy, EA Oh, BY Saull, PRB Whitmore, JJ Iga, Y D'Agostini, G Marini, G Nigro, A Cormack, C Hart, JC McCubbin, NA Heusch, C Park, IH Pavel, N Abramowicz, H Gabareen, A Kananov, S Kreisel, A Levy, A Abe, T Fusayasu, T Kagawa, S Kohno, T Tawara, T Yamashita, T Hamatsu, R Hirose, T Inuzuka, M Kitamura, S Matsuzawa, K Nishimura, T Arneodo, M Ferrero, MI Monaco, V Ruspa, M Sacchi, R Solano, A Galea, R Koop, T Levman, GM Martin, JF Mirea, A Sabetfakhri, A Butterworth, JM Gwenlan, C Hall-Wilton, R Jones, TW Lightwood, MS Loizides, JH West, BJ Ciborowski, J Ciesielski, R Nowak, RJ Pawlak, JM Smalska, B Sztuk, J Tymieniecka, T Ukleja, A Ukleja, J Zarnecki, AF Adamus, M Plucinski, P Eisenberg, Y Gladilin, LK Hochman, D Karshon, U Kcira, D Lammers, S Li, L Reeder, DD Savin, AA Smith, WH Deshpande, A Dhawan, S Hughes, VW Straub, PB Bhadra, S Catterall, CD Fourletov, S Menary, S Soares, M Standage, J AF Chekanov, S Krakauer, D Magill, S Musgrave, B Repond, J Yoshida, R Mattingly, MCK Antonioli, P Bari, G Basile, M Bellagamba, L Boscherini, D Bruni, A Bruni, G Romeo, GC Cifarelli, L Cindolo, F Contin, A Corradi, M De Pasquale, S Giusti, P Iacobucci, G Margotti, A Nania, R Palmonari, F Pesci, A Sartorelli, G Zichichi, A Aghuzumtsyan, G Bartsch, D Brock, I Goers, S Hartmann, H Hilger, E Irrgang, P Jakob, HP Kappes, A Katz, UF Kind, O Paul, E Rautenberg, J Renner, R Schnurbusch, H Stifutkin, A Tandler, J Voss, KC Wang, M Weber, A Bailey, DS Brook, NH Cole, JE Foster, B Heath, GP Heath, HF Robins, S Rodrigues, E Scott, J Tapper, RJ Wing, M Capua, M Mastroberardino, A Schioppa, M Susinno, G Kim, JY Kim, YK Lee, JH Lim, IT Pac, MY Caldwell, A Helbich, M Liu, X Mellado, B Ning, Y Paganis, S Ren, Z Schmidke, WB Sciulli, F Chwastowski, J Eskreys, A Figiel, J Olkiewicz, K Stopa, P Zawiejski, L Adamczyk, L Bold, T Grabowska-Bold, I Kisielewska, D Kowal, AM Kowal, M Kowalski, T Przybycien, M Suszycki, L Szuba, D Szuba, J Kotasnski, A Slominski, W Bauerdick, LAT Behrens, U Bloch, I Borras, K Chiochia, V Dannheim, D Derrick, M Drews, G Fourletova, J Fox-Murphy, A Fricke, U Geiser, A Goebel, F Gottlicher, P Gutsche, O Haas, T Hain, W Hartner, GF Hillert, S Kotz, U Kowalski, H Kramberger, G Labes, H Lelas, D Lohr, B Mankel, R Melzer-Pellmann, IA Moritz, M Notz, D Petrucci, MC Polini, A Raval, A Schneekloth, U Selonke, F Wessoleck, H Wichmann, R Wolf, G Youngman, C Zeuner, W Viani, ALD Meyer, A Schlenstedt, S Barbagli, G Gallo, E Genta, C Pelfer, PG Bamberger, A Benen, A Coppola, N Bell, M Bussey, PJ Doyle, AT Glasman, C Hanlon, S Lee, SW Lupi, A McCance, GJ Saxon, DH Skillicorn, IO Gialas, I Bodmann, B Carli, T Holm, U Klimek, K Krumnack, N Lohrmann, E Milite, M Salehi, H Stonjek, S Wick, K Ziegler, A Ziegler, A Collins-Tooth, C Foudas, C Goncalo, R Long, KR Metlica, F Tapper, AD Cloth, P Filges, D Kuze, M Nagano, K Tokushuku, K Yamada, S Yamazaki, Y Barakbaev, AN Boos, EG Pokrovskiy, NS Zhautykov, BO Lim, H Son, D Barreiro, F Gonzalez, O Labarga, L del Peso, J Redondo, I Tassi, E Terron, J Vazquez, M Barbi, M Bertolin, A Corriveau, F Ochs, A Padhi, S Stairs, DG St-Laurent, M Tsurugai, T Antonov, A Danilov, P Dolgoshein, BA Gladkov, D Sosnovtsev, V Suchkov, S Dementiev, RK Ermolov, PF Golubkov, YA Katkov, II Khein, LA Korzhavina, IA Kuzmin, VA Levchenko, BB Lukina, OY Proskuryakov, AS Shcheglova, LM Vlasov, NN Zotkin, SA Bokel, C Engelen, J Grijpink, S Koffeman, E Kooijman, P Maddox, E Pellegrino, A Schagen, S Tiecke, H Tuning, N Velthuis, JJ Wiggers, L de Wolf, E Brummer, N Bylsma, B Durkin, LS Ling, TY Boogert, S Cooper-Sarkar, AM Devenish, RCE Ferrando, J Grzelak, G Matsushita, T Rigby, M Ruske, O Sutton, MR Walczak, R Brugnera, R Carlin, R Dal Corso, F Dusini, S Garfagnini, A Limentani, S Longhin, A Parenti, A Posocco, M Stanco, L Turcato, M Heaphy, EA Oh, BY Saull, PRB Whitmore, JJ Iga, Y D'Agostini, G Marini, G Nigro, A Cormack, C Hart, JC McCubbin, NA Heusch, C Park, IH Pavel, N Abramowicz, H Gabareen, A Kananov, S Kreisel, A Levy, A Abe, T Fusayasu, T Kagawa, S Kohno, T Tawara, T Yamashita, T Hamatsu, R Hirose, T Inuzuka, M Kitamura, S Matsuzawa, K Nishimura, T Arneodo, M Ferrero, MI Monaco, V Ruspa, M Sacchi, R Solano, A Galea, R Koop, T Levman, GM Martin, JF Mirea, A Sabetfakhri, A Butterworth, JM Gwenlan, C Hall-Wilton, R Jones, TW Lightwood, MS Loizides, JH West, BJ Ciborowski, J Ciesielski, R Nowak, RJ Pawlak, JM Smalska, B Sztuk, J Tymieniecka, T Ukleja, A Ukleja, J Zarnecki, AF Adamus, M Plucinski, P Eisenberg, Y Gladilin, LK Hochman, D Karshon, U Kcira, D Lammers, S Li, L Reeder, DD Savin, AA Smith, WH Deshpande, A Dhawan, S Hughes, VW Straub, PB Bhadra, S Catterall, CD Fourletov, S Menary, S Soares, M Standage, J CA ZEUS Collaboration TI Measurements of inelastic J/psi and psi ' photoproduction at HERA SO EUROPEAN PHYSICAL JOURNAL C LA English DT Article ID CENTRAL TRACKING DETECTOR; ZEUS BARREL CALORIMETER; LUND MONTE-CARLO; ROOT S=1.8 TEV; P(P)OVER-BAR COLLISIONS; PARTON DISTRIBUTIONS; QUARKONIUM PRODUCTION; JET FRAGMENTATION; MESONS; CONSTRUCTION AB The cross sections for inelastic photoproduction of J/psi and psi' mesons have been measured in ep collisions with the ZEUS detector at HERA, using an integrated luminosity of 38.0 pb(-1). The events were required to have 0.1 < z < 0.9 and 50 < W < 180 GeV, where z is the fraction of the incident photon energy carried by the J/psi in the proton rest frame and W is the photon-proton centre-of-mass energy. The psi' to J/psi cross-section ratio was measured in the range 0.55 < z < 0.9. The J/psi data, for various ranges of transverse momentum, are compared to theoretical models incorporating colour-singlet and colour-octet matrix elements. Predictions of a next-to-leading-order colour-singlet model give a good description of the data, although there is a large normalisation uncertainty. The J/psi helicity distribution for z > 0.4 is compared to leading-order QCD predictions. C1 Argonne Natl Lab, Argonne, IL 60439 USA. Andrews Univ, Berrien Springs, MI 49104 USA. Univ Bologna, Bologna, Italy. INFN Bologna, Bologna, Italy. Univ Bonn, Inst Phys, D-5300 Bonn, Germany. Univ Bristol, HH Wills Phys Lab, Bristol, Avon, England. Univ Calabria, Dept Phys, I-87036 Cosenza, Italy. INFN, I-87036 Cosenza, Italy. Chonnam Natl Univ, Kwangju, South Korea. Columbia Univ, Nevis Labs, New York, NY 10027 USA. Inst Phys Nucl, Krakow, Poland. Univ Min & Met Krakow, Fac Phys & Nucl Tech, Krakow, Poland. Jagiellonian Univ, Dept Phys, Krakow, Poland. DESY Zeuthen, Zeuthen, Germany. Deutsch Elecktronen Synchrotron DESY, Hamburg, Germany. Univ Florence, Florence, Italy. Ist Nazl Fis Nucl, I-50125 Florence, Italy. Univ Freiburg, Fak Phys, D-7800 Freiburg, Germany. Univ Glasgow, Dept Phys & Astron, Glasgow, Lanark, Scotland. Univ Aegean, Dept Engn Management & Finance, Aegean, Greece. Univ Hamburg, Inst Exp Phys, Hamburg, Germany. Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England. Forschungszentrum Julich, Inst Kernphys, Julich, Germany. KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan. Minist Educ Res, Minist Educ & Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan. Kyungpook Natl Univ, Taegu, South Korea. Univ Autonoma Madrid, Dept Fis Teor, Madrid, Spain. McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. Meiji Gakuin Univ, Fac Gen Educ, Yokohama, Kanagawa, Japan. Moscow Phys Engn Inst, Moscow, Russia. Moscow MV Lomonosov State Univ, Inst Phys Nucl, Moscow, Russia. NIKHEF, Amsterdam, Netherlands. Univ Amsterdam, Amsterdam, Netherlands. Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. Univ Oxford, Dept Phys, Oxford, England. Univ Padua, Dipartimento Fis, Padua, Italy. Ist Nazl Fis Nucl, Padua, Italy. Penn State Univ, Dept Phys, University Pk, PA 16802 USA. Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy. Ist Nazl Fis Nucl, I-00185 Rome, Italy. Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England. Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA. Ewha Womans Univ, Dept Phys, Seoul, South Korea. Univ Siegen, Fachbereich Phys, D-5900 Siegen, Germany. Tel Aviv Univ, Sch Phys, Raymond & Beverly Sackler Fac Exact Sci, Tel Aviv, Israel. Univ Tokyo, Dept Phys, Tokyo, Japan. Tokyo Metropolitan Univ, Dept Phys, Tokyo, Japan. Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy. INFN, Turin, Italy. Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada. UCL, Dept Phys & Astron, London, England. Warsaw Univ, Inst Expt Phys, Warsaw, Poland. Inst Nucl Studies, PL-00681 Warsaw, Poland. Weizmann Inst Sci, Dept Particle Phys, Rehovot, Israel. Univ Wisconsin, Dept Phys, Madison, WI 53706 USA. Yale Univ, Dept Phys, New Haven, CT 06520 USA. York Univ, Dept Phys, N York, ON M3J 1P3, Canada. RP Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Gladilin, Leonid/B-5226-2011; Suchkov, Sergey/M-6671-2015; dusini, stefano/J-3686-2012; Goncalo, Ricardo/M-3153-2016; Li, Liang/O-1107-2015; De Pasquale, Salvatore/B-9165-2008; Wing, Matthew/C-2169-2008; Doyle, Anthony/C-5889-2009; collins-tooth, christopher/A-9201-2012; Ferrando, James/A-9192-2012; Golubkov, Yury/E-1643-2012; Levchenko, B./D-9752-2012; Proskuryakov, Alexander/J-6166-2012; Dementiev, Roman/K-7201-2012; Katz, Uli/E-1925-2013; Wiggers, Leo/B-5218-2015; Tassi, Enrico/K-3958-2015 OI Gladilin, Leonid/0000-0001-9422-8636; dusini, stefano/0000-0002-1128-0664; Goncalo, Ricardo/0000-0002-3826-3442; Li, Liang/0000-0001-6411-6107; De Pasquale, Salvatore/0000-0001-9236-0748; Doyle, Anthony/0000-0001-6322-6195; Ferrando, James/0000-0002-1007-7816; Katz, Uli/0000-0002-7063-4418; Wiggers, Leo/0000-0003-1060-0520; NR 49 TC 31 Z9 31 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1434-6044 EI 1434-6052 J9 EUR PHYS J C JI Eur. Phys. J. C PD MAR PY 2003 VL 27 IS 2 BP 173 EP 188 DI 10.1140/epjc/s2002-01130-2 PG 16 WC Physics, Particles & Fields SC Physics GA 666YU UT WOS:000182204700002 ER PT J AU Becker, JA Gemmell, DS Schiffer, JP Wilhelmy, JB AF Becker, JA Gemmell, DS Schiffer, JP Wilhelmy, JB TI Comment on "Tunable synchrotron radiation used to induce gamma-emission from the 31-year isomer of Hf-178" by C. B. Collins et al. SO EUROPHYSICS LETTERS LA English DT Letter C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Argonne Natl Lab, Argonne, IL 60439 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Becker, JA (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD MAR PY 2003 VL 61 IS 5 BP 721 EP 721 DI 10.1209/epl/i2003-00136-9 PG 1 WC Physics, Multidisciplinary SC Physics GA 647EV UT WOS:000181080600022 ER PT J AU Kopnin, NB Vinokur, VM AF Kopnin, NB Vinokur, VM TI Spectral flow in superconducting point contacts SO EUROPHYSICS LETTERS LA English DT Article ID JOSEPHSON-JUNCTIONS; MAGNUS FORCE; WEAK LINKS; TRANSPORT; ANOMALIES; CHANNEL; CHARGE; LIMIT AB We find that multiple Andreev reflections mediating the transport in superconducting point contacts are strongly affected by a small amount of impurities in the area of the contact. We also argue that the model based on Zener transitions within independent conducting channels is not suitable for kinetic processes in multichannel contacts. C1 Helsinki Univ Technol, Low Temp Lab, FIN-02015 Espoo, Finland. LD Landau Theoret Phys Inst, Moscow 117940, Russia. Argonne Natl Lab, Argonne, IL 60439 USA. RP Kopnin, NB (reprint author), Helsinki Univ Technol, Low Temp Lab, FIN-02015 Espoo, Finland. NR 21 TC 1 Z9 1 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD MAR PY 2003 VL 61 IS 6 BP 824 EP 830 DI 10.1209/epl/i2003-00308-1 PG 7 WC Physics, Multidisciplinary SC Physics GA 653VB UT WOS:000181456800016 ER PT J AU Hart, WE AF Hart, WE TI Locally-adaptive and memetic evolutionary pattern search algorithms SO EVOLUTIONARY COMPUTATION LA English DT Article DE convergence; constraints; memetic algorithms; adaptation; local search ID CONVERGENCE; OPTIMIZATION AB Recent convergence analyses of evolutionary pattern search algorithms (EPSAs) have shown that these methods have a weak stationary point convergence theory for a broad class of unconstrained and linearly constrained problems. This paper describes how the convergence theory for EPSAs can be adapted to allow each individual in a population to have its own mutation step length (similar to the design of evolutionary programing and evolution strategies algorithms). These are called locally-adaptive EPSAs (LA-EPSAs) since each individual's mutation step length is independently adapted in different local neighborhoods. The paper also describes a variety of standard formulations of evolutionary algorithms that can be used for LA-EPSAs. Further, it is shown how this convergence theory can be applied to memetic EPSAs, which use local search to refine points within each iteration. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Hart, WE (reprint author), Sandia Natl Labs, POB 5800,MS 1110, Albuquerque, NM 87185 USA. EM wehart@sandia.gov NR 43 TC 12 Z9 12 U1 0 U2 5 PU MIT PRESS PI CAMBRIDGE PA ONE ROGERS ST, CAMBRIDGE, MA 02142-1209 USA SN 1063-6560 EI 1530-9304 J9 EVOL COMPUT JI Evol. Comput. PD SPR PY 2003 VL 11 IS 1 BP 29 EP 51 PG 23 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods SC Computer Science GA 658ZW UT WOS:000181752400003 PM 12804096 ER PT J AU Chen, W Song, B Frew, DJ Forrestal, MJ AF Chen, W Song, B Frew, DJ Forrestal, MJ TI Dynamic small strain measurements of a metal specimen with a split Hopkinson pressure bar SO EXPERIMENTAL MECHANICS LA English DT Article DE split Hopkinson pressure bar; dynamic elastic modulus; small strains; dynamic mechanical response AB When a conventional split Hopkinson pressure bar (SHPB) is used to investigate the dynamic flow behavior of ductile metals, the results at small strains (epsilon AF2 transition at T-1. Large negative magnetoresistance effects have been observed not only in the AF state as a result of the metamagnetic transition to canted structure at B-c, but also at temperatures far above T-N. The latter result is attributed to the existence of AF correlations or short range AF orderings in the paramagnetic range. The value of T-N increases with increasing applied pressure, whereas T-1 simultaneously decreases. It is also found that B-c decreases with increasing pressure. As a consequence, the stability range of the AF-1 phase expands with applied pressure partially on account of the ground-state AF-2 phase. C1 Charles Univ, KFES MFF UK, Dept Elect Struct, Prague 12116 2, Czech Republic. New Mexico State Univ, Las Cruces, NM 88003 USA. Acad Sci Czech Republ, Inst Phys, CR-18121 Prague, Czech Republic. Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA. Slovak Acad Sci, Inst Expt Phys, Kosice 04353, Slovakia. RP Honda, F (reprint author), Charles Univ, KFES MFF UK, Dept Elect Struct, Ke Karlovu 5, Prague 12116 2, Czech Republic. RI Kamarad, Jiri/G-5880-2014; HONDA, Fuminori/D-5578-2015; Sechovsky, Vladimir/A-5256-2008 OI Kamarad, Jiri/0000-0003-3502-9930; HONDA, Fuminori/0000-0002-9485-7384; Sechovsky, Vladimir/0000-0003-1298-2120 NR 4 TC 0 Z9 0 U1 0 U2 3 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0895-7959 J9 HIGH PRESSURE RES JI High Pressure Res. PD MAR-JUN PY 2003 VL 23 IS 1-2 BP 177 EP 180 DI 10.1080/0895795031000147740 PG 4 WC Physics, Multidisciplinary SC Physics GA 710NB UT WOS:000184685300031 ER PT J AU Shalf, J Bethel, EW AF Shalf, J Bethel, EW TI The grid and future visualization system architectures SO IEEE COMPUTER GRAPHICS AND APPLICATIONS LA English DT Editorial Material C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Shalf, J (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,Mail Stop 50F, Berkeley, CA 94720 USA. NR 4 TC 23 Z9 23 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0272-1716 J9 IEEE COMPUT GRAPH JI IEEE Comput. Graph. Appl. PD MAR-APR PY 2003 VL 23 IS 2 BP 6 EP 9 DI 10.1109/MCG.2003.1185573 PG 4 WC Computer Science, Software Engineering SC Computer Science GA 651AT UT WOS:000181298400002 ER PT J AU Jankun-Kelly, TJ Kreylos, O Ma, KL Hamann, B Joy, KI Shalf, J Bethel, EW AF Jankun-Kelly, TJ Kreylos, O Ma, KL Hamann, B Joy, KI Shalf, J Bethel, EW TI Deploying Web-based visual exploration tools on the grid SO IEEE COMPUTER GRAPHICS AND APPLICATIONS LA English DT Article ID VISUALIZATION AB Our Web-based portal lets users explore, encapsulate and disseminate visualization results over the grid. This portal integrates an interface client a visualization Web application, and a centralized application server. C1 Univ Calif Davis, Visualizat & Graph Res Grp, Ctr Image Proc & Integrated Comp, Dept Comp Sci, Davis, CA 95616 USA. Lawrence Berkeley Natl Lab, Visualizat Grp, Berkeley, CA USA. RP Univ Calif Davis, Visualizat & Graph Res Grp, Ctr Image Proc & Integrated Comp, Dept Comp Sci, Davis, CA 95616 USA. EM qk@acm.org NR 17 TC 22 Z9 23 U1 0 U2 1 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0272-1716 EI 1558-1756 J9 IEEE COMPUT GRAPH JI IEEE Comput. Graph. Appl. PD MAR-APR PY 2003 VL 23 IS 2 BP 40 EP 50 DI 10.1109/MCG.2003.1185579 PG 11 WC Computer Science, Software Engineering SC Computer Science GA 651AT UT WOS:000181298400008 ER PT J AU Bethel, EW Shalf, J AF Bethel, EW Shalf, J TI Grid-distributed visualizations using connectionless protocols SO IEEE COMPUTER GRAPHICS AND APPLICATIONS LA English DT Article AB We discuss the advantages of using connectionless protocols to greatly accelerate network throughput of grid-based distributed applications through our experience with Visapult and Cactus. C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bethel, EW (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,Mail Stop 50F, Berkeley, CA 94720 USA. NR 9 TC 20 Z9 21 U1 0 U2 0 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0272-1716 J9 IEEE COMPUT GRAPH JI IEEE Comput. Graph. Appl. PD MAR-APR PY 2003 VL 23 IS 2 BP 51 EP 59 DI 10.1109/MCG.2003.1185580 PG 9 WC Computer Science, Software Engineering SC Computer Science GA 651AT UT WOS:000181298400009 ER PT J AU Tolbert, LM Peterson, WA Theiss, TJ Scudiere, MB AF Tolbert, LM Peterson, WA Theiss, TJ Scudiere, MB TI Gen-sets SO IEEE INDUSTRY APPLICATIONS MAGAZINE LA English DT Article ID GENERATOR C1 Univ Tennessee, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. E&M Power, Binghamton, NY USA. RP Tolbert, LM (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. EM tolbert@utk.edu; peterson@EandMpower.com; theisstj@ornl.gov; scudieremh@ornl.gov OI Tolbert, Leon/0000-0002-7285-609X NR 8 TC 14 Z9 14 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1077-2618 J9 IEEE IND APPL MAG JI IEEE Ind. Appl. Mag. PD MAR-APR PY 2003 VL 9 IS 2 BP 48 EP 54 DI 10.1109/MIA.2003.1180949 PG 7 WC Engineering, Industrial; Engineering, Electrical & Electronic SC Engineering GA 649FW UT WOS:000181197400013 ER PT J AU Alfano, RR Demos, SG Gayen, SK AF Alfano, RR Demos, SG Gayen, SK TI Introduction to the issue on lasers in biology and medicine SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS LA English DT Editorial Material C1 CUNY City Coll, New York, NY 10031 USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Alfano, RR (reprint author), CUNY City Coll, New York, NY 10031 USA. RI Gayen, Swapan/K-8159-2015; OI Gayen, Swapan/0000-0002-4071-6084 NR 0 TC 2 Z9 2 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 1077-260X J9 IEEE J SEL TOP QUANT JI IEEE J. Sel. Top. Quantum Electron. PD MAR-APR PY 2003 VL 9 IS 2 BP 140 EP 141 DI 10.1109/JSTQE.2003.814944 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA 735VK UT WOS:000186135100001 ER PT J AU Patel, RR Bond, SW Pocha, MD Larson, MC Garrett, HE Drayton, RF Petersen, HE Krol, DM Deri, RJ Lowry, ME AF Patel, RR Bond, SW Pocha, MD Larson, MC Garrett, HE Drayton, RF Petersen, HE Krol, DM Deri, RJ Lowry, ME TI Multiwavelength parallel optical interconnects for massively parallel processing SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS LA English DT Article DE coarse WDM; massively parallel processing interconnects; multiwavelength bit parallel transmitters; multiwavelength parallel optical interconnects; WDM filter modules ID SURFACE-EMITTING LASERS; MOLECULAR-BEAM EPITAXY; DATA LINKS; MULTIMODE WDM; STAR COUPLERS; ARRAYS; ENHANCEMENT; PERFORMANCE; MULTIPLEXER; NETWORKS AB We describe a multiwavelength, multifiber (parallel) optical interconnect based on multimode fiber ribbon cables with applications in massively parallel processing systems. By combining the benefits of parallel optics and coarse wavelength division multiplexing high aggregate throughputs are possible in a broadcast and select architecture that provides a single hop to all nodes. We identify the key components needed for such a system and report on our component development efforts for multiwavelength parallel optical interconnects. System components reported herein include a four-wavelength bit-parallel transmitter using a silicon optical bench and hybrid packaging, and two-port and three-port wavelength selective filter modules packaged to be compatible with mechanically transferable ferrule terminated ribbon cables. The transmitters were modulated up to 1.25 Gb/s with a bit-error rate better than 10(-12) and no measurable power penalty due to multiple wavelength bit parallel operation. The filters exhibited insertion losses of between I and 2 dB and would support 10 nm spaced channels at -23-dB crosstalk. C1 MIT, Lincoln Lab, Lexington, MA 02420 USA. Univ Calif Davis, Livermore, CA 95616 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA. Univ Calif Davis, Dept Appl Sci, Davis, CA 95616 USA. RP Patel, RR (reprint author), MIT, Lincoln Lab, Lexington, MA 02420 USA. RI Franklin, Rhonda/C-8037-2011 NR 39 TC 9 Z9 10 U1 0 U2 7 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA SN 1077-260X J9 IEEE J SEL TOP QUANT JI IEEE J. Sel. Top. Quantum Electron. PD MAR-APR PY 2003 VL 9 IS 2 BP 657 EP 666 DI 10.1109/JSTQE.2003.813313 PG 10 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA 735VK UT WOS:000186135100058 ER PT J AU Liu, A Gorton, I AF Liu, A Gorton, I TI Accelerating COTS middleware acquisition: The i-Mate process SO IEEE SOFTWARE LA English DT Article AB COTS middleware speeds e-business application deployment but can be difficult to select. The i-Mate tool provides a proven, structured software engineering process for COTS middleware acquisition. Using i-Mate in six major projects for a wide range of organizations led to highly visible, accountable, and ultimately reliable selections of COTS middleware products in greatly compressed time scales. This significantly reduced the risks associated with inappropriate product selections and made these projects more likely to succeed. C1 CSIRO, Sydney, NSW, Australia. Battelle Mem Inst, Pacific NW Natl Lab, Richland, WA 99352 USA. RP Microsoft Australia, 1 Epping Rd, N Ryde, NSW 2113, Australia. EM annali@microsoft.com; ian.gorton@pnl.gov RI Gorton, Ian/A-8247-2009 NR 10 TC 14 Z9 14 U1 0 U2 1 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA SN 0740-7459 EI 1937-4194 J9 IEEE SOFTWARE JI IEEE Softw. PD MAR-APR PY 2003 VL 20 IS 2 BP 72 EP + DI 10.1109/MS.2003.1184171 PG 9 WC Computer Science, Software Engineering SC Computer Science GA 648CA UT WOS:000181131200016 ER PT J AU Maroni, VA Murphy, NN Mika, M Luo, ZP Tang, YL Claus, H Miller, DJ Park, JH Dorris, SE Riley, GN Fleshler, S Williams, RK AF Maroni, VA Murphy, NN Mika, M Luo, ZP Tang, YL Claus, H Miller, DJ Park, JH Dorris, SE Riley, GN Fleshler, S Williams, RK TI Search for a silver-sheathed 1212-type superconductor with a grain colony microstructure: M1Sr2Y1-xCaxCu2Oz with M=(Bi,Pb), (Cd,Pb), and (Fe,Pb) SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY LA English DT Article DE (Bi,Pb)-1212; (Cd,Pb)-1212; composite superconductor; (Fe,Pb)-1212; grain colony microstructure ID COMPOSITE CONDUCTORS; T-C; PHASE-FORMATION; TEXTURE DEVELOPMENT; CRYSTAL-STRUCTURE; PINNING-FORCE; (BI,PB)-1212; TAPES; (PB AB We have investigated the possibility of forming a silver-sheathed 1212-type high-critical-temperature superconductor (HTS) with the same type of grain colony microstructure (GCM) that develops in the silver-sheathed Bi-2223 (Ag/Bi-2223) composite conductor. The basis for this study is that a silver-sheathed 1212-type superconductor having a GCM should exhibit 1) good long-length transport critical current properties, 2) better in-field performance than Ag/Bi-2223 due to the significantly shorter, blocking layer distance in 1212-type as opposed to 2223-type HTS phases, and 3) long-length transport current capacity equaling or exceeding that of Ag/Bi-2223 in present-day applications. Three series of M1Sr2Y1-xCaxCu2Oz (M-1212) compositions with M = (Bi,Pb), (Cd,Pb), and (Fe,Pb) were prepared in silver-sheathed/flat wire form by the powder-in-tube method. For M = (Bi,Pb), we were able to obtain over 80% conversion to a 1212-phase in a relatively short time (6 h) for oxygen partial pressures in the range from 0.08 to 0.21 atm and temperatures from 900 degreesC to 940 degreesC. The (Bi,Pb)-1212 phase grew with a GCM that had the same type of fiber texture found in Ag/Bi-2223 composites. However, within the range of processing conditions tolerated by a silver sheath, no transport critical current was achieved in any of the Ag/(Bi,Pb)-1212 specimens, including ones that showed the presence of an HTS phase. Various oxygen doping treatments performed at very high (ca. 88 atm O-2), intermediate (1 atm O-2), and low oxygen partial. pressures (0.01 atm O-2) failed to induce a global HTS phase that carried a transport current. The preponderance of evidence from these studies indicated that any superconductivity detected in Ag/(Bi,Pb)-1212 specimens was most likely due to trace amounts of either Bi-2201 or Bi-2212. For M = (Cd,Pb) and (Fe,Pb), M-1212 phases in appreciable quantity did form in the silver-sheathed composites after heat treatment, but those M-1212 phases had granular microstructures. In the case of Ag/(Cd,Pb)-1212, the superconductivity that was detected in several specimens appeared to originate from a 2212-like phase. In the case of Ag/(Fe,Pb)-1212, there was clear evidence for the formation of a superconducting 1212 phase, but neither the Ag/(Cd,Pb)-1212 nor the Ag/(Fe,Pb)-1212 specimens exhibited a measurable transport critical current, presumably (in the latter case at least) because of the absence of a GCM. C1 Argonne Natl Lab, Argonne, IL 60439 USA. Texas A&M Univ, Microscopy & Imaging Ctr, College Stn, TX 77843 USA. Amer Superconductor, Westborough, MA 01581 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Maroni, VA (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM Maroni@cmt.anl.gov RI Luo, Zhiping/C-4435-2014 OI Luo, Zhiping/0000-0002-8264-6424 NR 37 TC 0 Z9 0 U1 1 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 MAR PY 2003 VL 13 IS 1 BP 7 EP 16 DI 10.1109/TASC.2003.809596 PG 10 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA 677ZT UT WOS:000182840400002 ER PT J AU Jiang, SB Kumar, R Garcia, HE AF Jiang, SB Kumar, R Garcia, HE TI Optimal sensor selection for discrete-event systems with partial observation SO IEEE TRANSACTIONS ON AUTOMATIC CONTROL LA English DT Article DE discrete-event systems; partial observation; sensor selection ID DECENTRALIZED SUPERVISORY CONTROL; DIAGNOSABILITY AB For discrete-event systems under partial observation, we study the problem of selection of an optimal set of sensors that can provide sufficient yet minimal events observation information needed to accomplish the task at hand, such as that of control or estimation. The sufficiency of the observed information is captured as the fulfillment of a desired formal property such as (co-)observability or normality (for control under partial observation), state-observability (for state estimation under partial observation), diagnosability (for failure diagnosis under partial observation), etc. A selection of sensors can be viewed as a selection of an observation mask and also of an equivalence class of events. A sensor set is called optimal if any coarser selection of the corresponding equivalence class of events results in some loss of the events observation information so that the task at hand cannot be accomplished, or equivalently, the desired formal property cannot be fulfilled. general We study an optimal selection of sensors over the set of "nonprojection" observation masks. We show that this problem is NP hard in general. For mask-monotonic properties (that are preserved under increasing precision in events observation information, such as (co)-observability, normality, state-observability, diagnosability, etc.), we present a "top -down" and a "bottom-up" algorithm each of polynomial complexity. We show that observerness is not mask-monotonic. We show that the computational complexity can be further improved if the property is preserved under the projection via an intermediary observation mask that is an observer. Our results are obtained in a general setting so that they can be adapted for an optimal selection of sensors for a variety of applications in discrete-event systems including (co-)observability, normality, diagnosability (single failure as well as repeated failures), state-observability, and invertibility. C1 GM Corp, R&D & Planning, Warren, MI 48090 USA. Iowa State Univ, Dept Elect & Comp Engn, Ames, IA 50011 USA. Argonne Natl Lab, Idaho Falls, ID 83403 USA. RP Jiang, SB (reprint author), GM Corp, R&D & Planning, Warren, MI 48090 USA. RI Kumar, Ratnesh/H-5309-2012 NR 22 TC 58 Z9 60 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9286 J9 IEEE T AUTOMAT CONTR JI IEEE Trans. Autom. Control PD MAR PY 2003 VL 48 IS 3 BP 369 EP 381 DI 10.1109/TAC.2003.809144 PG 13 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA 655FX UT WOS:000181541600002 ER PT J AU Bennett, TR Booker, JM Keller-McNulty, S Singpurwalla, ND AF Bennett, TR Booker, JM Keller-McNulty, S Singpurwalla, ND TI Testing the untestable: Reliability in the 21st century SO IEEE TRANSACTIONS ON RELIABILITY LA English DT Article DE belief functions; decision making; expert testimonies; foundational issues in reliability; possibility theory; probability; subjectivity AB As science and technology become increasingly sophisticated, government and industry are relying more and more on science's advanced methods to determine reliability. Unfortunately, political, economic, time, and other constraints imposed by the real world, inhibit the ability of researchers to calculate reliability efficiently and accurately. Because of such constraints, reliability must undergo an evolutionary change. The first step in this evolution is to re-interpret the concept so that it meets the new century's needs. The next step is to quantify reliability using both empirical methods and auxiliary data sources, such as expert knowledge, corporate memory, and mathematical modeling and simulation. C1 Los Alamos Natl Lab, Stat Grp, Los Alamos, NM 87545 USA. George Washington Univ, Dept Stat, Washington, DC 20052 USA. OI SINGPURWALLA, Nozer Darabsha/0000-0003-3578-2308 NR 38 TC 7 Z9 10 U1 0 U2 3 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA SN 0018-9529 J9 IEEE T RELIAB JI IEEE Trans. Reliab. PD MAR PY 2003 VL 52 IS 1 BP 118 EP 124 DI 10.1109/TR.2002.807239 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA 647QA UT WOS:000181104200024 ER PT J AU Daisey, JM Angell, WJ Apte, MG AF Daisey, JM Angell, WJ Apte, MG TI Indoor air quality, ventilation and health symptoms in schools: an analysis of existing information SO INDOOR AIR LA English DT Article DE allergy; asthma; microbiological contaminant; carbon dioxide concentration; formaldehyde; sick building syndrome; ventilation rate ID VOLATILE ORGANIC-COMPOUNDS; BUILDING SYNDROME SYMPTOMS; DAY-CARE-CENTERS; DER-P-I; FEL-D-I; RESPIRATORY SYMPTOMS; CO2 CONCENTRATIONS; SMOOTH FLOORS; DUST; CHILDREN AB We reviewed the literature on Indoor Air Quality (IAQ), ventilation, and building-related health problems in schools and identified commonly reported building-related health symptoms involving schools until 1999. We collected existing data on ventilation rates, carbon dioxide (CO(2) ) concentrations and symptom-relevant indoor air contaminants, and evaluated information on causal relationships between pollutant exposures and health symptoms. Reported ventilation and CO(2) data strongly indicate that ventilation is inadequate in many classrooms, possibly leading to health symptoms. Adequate ventilation should be a major focus of design or remediation efforts. Total volatile organic compounds, formaldehyde (HCHO) and microbiological contaminants are reported. Low HCHO concentrations were unlikely to cause acute irritant symptoms (<0.05 ppm), but possibly increased risks for allergen sensitivities, chronic irritation, and cancer. Reported microbiological contaminants included allergens in deposited dust, fungi, and bacteria. Levels of specific allergens were sufficient to cause symptoms in allergic occupants. Measurements of airborne bacteria and airborne and surface fungal spores were reported in schoolrooms. Asthma and 'sick building syndrome' symptoms are commonly reported. The few studies investigating causal relationships between health symptoms and exposures to specific pollutants suggest that such symptoms in schools are related to exposures to volatile organic compounds (VOCs), molds and microbial VOCs, and allergens. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, Berkeley, CA 94720 USA. Univ Minnesota, Minnesota Extens Serv, Indoor Air Qual Project, St Paul, MN 55108 USA. RP Apte, MG (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Indoor Environm Dept, MS 90-3058,1 Cyclotron Rd, Berkeley, CA 94720 USA. EM mgapte@lbl.gov FU NIAID NIH HHS [K24 AI106822, R01 AI073964] NR 65 TC 313 Z9 322 U1 23 U2 160 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA SN 0905-6947 J9 INDOOR AIR JI Indoor Air PD MAR PY 2003 VL 13 IS 1 BP 53 EP 64 DI 10.1034/j.1600-0668.2003.00153.x PG 12 WC Construction & Building Technology; Engineering, Environmental; Public, Environmental & Occupational Health SC Construction & Building Technology; Engineering; Public, Environmental & Occupational Health GA 650UX UT WOS:000181282700007 PM 12608926 ER PT J AU Rousseau, A Saglini, S Jakov, M Gray, D Hardy, K AF Rousseau, A Saglini, S Jakov, M Gray, D Hardy, K TI Trade-offs between fuel economy and NOx emissions using fuzzy logic control with a hybrid CVT configuration SO INTERNATIONAL JOURNAL OF AUTOMOTIVE TECHNOLOGY LA English DT Article DE CVT; fuzzy logic control strategy; hybrid vehicle; NOx emission AB The Center for Transportation Research at the Argonne National Laboratory (ANL) supports the DOE by evaluating advanced automotive technologies in a systems context. ANL has developed a unique set of compatible simulation tools and test equipment to perform an integrated systems analysis project from modeling through hardware testing and validation. This project utilized these capabilities to demonstrate the trade-off in fuel economy and Oxides of Nitrogen (NOx) emissions in a so-called `pre-transmission' parallel hybrid powertrain. The powertrain configuration (in simulation and on the dynamometer) consists of a Compression Ignition Direct Ignition (CIDI) engine, a Continuously Variable Transmission (CVT) and an electric drive motor coupled to the CVT input shaft. The trade-off is studied in a simulated environment using PSAT(C) with different controllers (fuzzy logic and rule based) and engine models (neural network and steady state models developed from ANL data). C1 Argonne Natl Lab, Argonne, IL 60439 USA. RP Rousseau, A (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 362,Rm C265, Argonne, IL 60439 USA. NR 10 TC 5 Z9 5 U1 1 U2 6 PU KOREAN SOC AUTOMOTIVE ENGINEERS PI SEOUL PA TEHERAN OFFICE BLDG #809, 707-38 YEOKSAM-DONG, GANGNAM-GU, SEOUL, KOREA SN 1229-9138 J9 INT J AUTOMOT TECHN JI Int. J. Automot. Technol. PD MAR PY 2003 VL 4 IS 1 BP 47 EP 55 PG 9 WC Engineering, Mechanical; Transportation Science & Technology SC Engineering; Transportation GA 710UD UT WOS:000184699100006 ER PT J AU Volkow, ND Wang, GJ Maynard, L Jayne, M Fowler, JS Zhu, W Logan, J Gatley, SJ Ding, YS Wong, C Pappas, N AF Volkow, ND Wang, GJ Maynard, L Jayne, M Fowler, JS Zhu, W Logan, J Gatley, SJ Ding, YS Wong, C Pappas, N TI Brain dopamine is associated with eating behaviors in humans SO INTERNATIONAL JOURNAL OF EATING DISORDERS LA English DT Article DE brain dopamine; eating behaviors; restraint; neurobiologic processes ID NUCLEUS-ACCUMBENS; C-11 RACLOPRIDE; BINDING; REWARD; PET; SCHIZOPHRENIA; RESPONSES; STRIATUM; RATS AB Objective: Eating behavior in humans is influenced by variables other than just hunger-satiety including cognitive restraint, emotional distress, and sensitivity to food stimuli. We investigate the role of dopamine (DA), a neurotransmitter involved with food motivation, in these variables. Methods: We used the Dutch Eating Behavior Questionnaire (DEBQ) to measure Restraint, Emotionality, and Externality in 10 subjects. We correlated DEBQ scores with brain DA levels. Positron emission tomography and [C-11]raclopride uptake were used to measure baseline D-2 receptors (neutral stimulation) and to assess changes in extracellular DA to food stimulation (display of food). Results: Restraint was correlated with DA changes with food, stimulation (higher restraint, greater responsivity), emotionality was negatively correlated with baseline D2 receptors (higher emotionality, lower D-2 receptors), whereas externality was not. These correlations were significant in the dorsal but not in the ventral striatum. Discussion: These results provide evidence that DA in the dorsal striatum is involved with the restraint and emotionality components regulating eating behavior and that these two dimensions reflect different neurobiologic processes. (C) 2003 by Wiley Periodicals, Inc. C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. SUNY Stony Brook, Dept Appl Math, Stony Brook, NY 11794 USA. RP Volkow, ND (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. OI Logan, Jean/0000-0002-6993-9994 FU NIDA NIH HHS [DA06278, DA09490-01] NR 32 TC 123 Z9 127 U1 3 U2 13 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0276-3478 J9 INT J EAT DISORDER JI Int. J. Eating Disord. PD MAR PY 2003 VL 33 IS 2 BP 136 EP 142 DI 10.1002/eat.10118 PG 7 WC Psychology, Clinical; Nutrition & Dietetics; Psychiatry; Psychology SC Psychology; Nutrition & Dietetics; Psychiatry GA 649QF UT WOS:000181218900003 PM 12616579 ER PT J AU Berman, GP Kamenev, DI Kassman, RB Pineda, C Tsifrinovich, VI AF Berman, G. P. Kamenev, D. I. Kassman, R. B. Pineda, C. Tsifrinovich, V. I. TI METHOD FOR IMPLEMENTATION OF UNIVERSAL QUANTUM LOGIC GATES IN A SCALABLE ISING SPIN QUANTUM COMPUTER SO INTERNATIONAL JOURNAL OF QUANTUM INFORMATION LA English DT Article DE Ising spin quantum computer AB We present protocols for implementation of universal quantum gates on an arbitrary superposition of quantum states in a scalable solid-state Ising spin quantum computer. The spin chain is composed of identical spins 1/2 with the Ising interaction between the neighboring spins. the selective excitations of the spins are provided by the gradient of the external magnetic field. The protocols are built of rectangular radio-frequency pulses. Since the wavelength of the radio-frequency pulses is much larger than the distance between the spins, each pulse affects all spins in the chain and introduces the phase and probability errors, which occur even without the influence of the environment. These errors caused by the unwanted transitions are minimized and computed numerically. C1 [Berman, G. P.; Kamenev, D. I.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. [Berman, G. P.; Kamenev, D. I.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. [Kassman, R. B.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA. [Pineda, C.] Univ Nacl Autonoma Mexico, Mexico City 01000, DF, Mexico. [Tsifrinovich, V. I.] Polytech Univ, IDS Dept, Metrotech Ctr 6, Brooklyn, NY 11201 USA. RP Berman, GP (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. FU Department of Energy (DOE) [W-7405-ENG-36]; National Security Agency (NSA); Advanced Research and Development Activity (ARDA); Direccion General de Estudios de Posgrado (DGEP) FX We are thankful to T. Seligman for useful discussions. This work was supported by the Department of Energy (DOE) under Contract No. W-7405-ENG-36, by the National Security Agency (NSA), and by the Advanced Research and Development Activity (ARDA). The work of C.P. was supported by Direccion General de Estudios de Posgrado (DGEP). C.P. is thankful to the Center for Nonlinear Studies at the Los Alamos National Laboratory for hospitality. NR 25 TC 18 Z9 18 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE SN 0219-7499 EI 1793-6918 J9 INT J QUANTUM INF JI Int. J. Quantum Inf. PD MAR PY 2003 VL 1 IS 1 BP 51 EP 77 DI 10.1142/S0219749903000085 PG 27 WC Computer Science, Theory & Methods; Physics, Particles & Fields; Physics, Mathematical SC Computer Science; Physics GA V34FQ UT WOS:000209072700005 ER PT J AU Morris, GM Coderre, JA Hopewell, JW Micca, PL Nawrocky, M Miura, M AF Morris, GM Coderre, JA Hopewell, JW Micca, PL Nawrocky, M Miura, M TI Porphyrin-mediated boron neutron capture therapy: evaluation of the reactions of skin and central nervous system SO INTERNATIONAL JOURNAL OF RADIATION BIOLOGY LA English DT Article ID RAT SPINAL-CORD; P-BORONOPHENYLALANINE; PHOTODYNAMIC THERAPY; BOROCAPTATE SODIUM; X-RAYS; IRRADIATION; PATHOGENESIS; TOLERANCE; TISSUE; HEAD AB Purpose: Recently, various boronated porphyrins have been shown to preferentially target a variety of tumour types. Of the different porphyrins evaluated, copper tetra-phenyl-carboranyl porphyrin (CuTCPH) is a strong candidate for future preclinical evaluation. In the present study, the responses of two critical normal tissues, skin and central nervous system (CNS), to boron neutron capture (BNC) irradiation in the presence of this porphyrin were evaluated. Materials and methods: Standard models for the skin and spinal of adult male Fischer 344 rats were used. CuTCPH was administered by intravenous infusion at a dose of 200 mg kg(-1) body weight, over 48 h. The thermal beam at the Brookhaven Medical Research Reactor was used for the BNC irradiations. The 20-mm diameter irradiation field, for both the skin and the spinal cord, was located on the mid-dorsal line of the neck. Dose-response data were fitted using probit analysis and the doses required to produce a 50% incidence rate of early and late skin changes or myeloparesis (ED50 +/- SE) were calculated from these curves. Results: Biodistribution studies indicated very low levels of boron (< 3 μg g(-1)) in the blood 3 days after the administration of CuTCPH. This was the time point selected for radiation exposure in the radiobiological studies. Levels of boron in the CNS were also low (2.8 +/- 0.6 μg g(-1)) after 3 days. However, the concentration of boron in the skin was considerably higher at 22.7 +/- 2.6 μg g(-1). Single radiation exposures were carried out a thermal neutron beam. The impact of CuTCPH-mediated BNC irradiation on the normal skin and CNS at therapeutically effective exposure times was minimal. This was primarily due to the very low blood boron levels ( from CuTCPH) at the time of irradiation. Analysis of the relevant dose-effect data gave compound biological effectiveness factors of about 1.8 for skin ( moist desquamation) and about 4.4 for spinal cord ( myeloparesis) for CuTCPH. These values were based on the BNC radiation doses to tissues calculated using the blood boron levels at the time of irradiation. Conclusions: CuTCPH-mediated BNC irradiation will not cause significant damage to skin and CNS at clinically relevant radiation doses provided that blood boron levels are low at the time of radiation exposure. C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA. Churchill Hosp, Normal Tissue Radiobiol Res Grp, Res Inst, Oxford OX3 7LJ, England. RP Hopewell, JW (reprint author), Churchill Hosp, Dept Clin Oncol, Oxford OX3 7LJ, England. NR 37 TC 2 Z9 2 U1 0 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0955-3002 J9 INT J RADIAT BIOL JI Int. J. Radiat. Biol. PD MAR PY 2003 VL 79 IS 3 BP 149 EP 158 DI 10.1080/0955300031000073392 PG 10 WC Biology; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA 669AM UT WOS:000182329800001 PM 12745879 ER PT J AU Samios, NP AF Samios, NP TI How the laser happened: Adventures of a scientist. SO ISIS LA English DT Book Review C1 Brookhaven Natl Lab, Upton, NY 11973 USA. RIKEN, BNL Res Ctr, Wako, Saitama, Japan. RP Samios, NP (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. NR 1 TC 0 Z9 0 U1 1 U2 2 PU UNIV CHICAGO PRESS PI CHICAGO PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA SN 0021-1753 J9 ISIS JI Isis PD MAR PY 2003 VL 94 IS 1 BP 184 EP 185 DI 10.1086/376171 PG 2 WC History & Philosophy Of Science SC History & Philosophy of Science GA 659BK UT WOS:000181757000080 ER PT J AU Fitzpatrick, A AF Fitzpatrick, A TI Making waves: Stories from my life. SO ISIS LA English DT Book Review C1 Los Alamos Natl Lab, Comp & Computat Sci Div, Los Alamos, NM 87545 USA. RP Fitzpatrick, A (reprint author), Los Alamos Natl Lab, Comp & Computat Sci Div, POB 1663, Los Alamos, NM 87545 USA. NR 1 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 0021-1753 J9 ISIS JI Isis PD MAR PY 2003 VL 94 IS 1 BP 185 EP 185 DI 10.1086/376172 PG 1 WC History & Philosophy Of Science SC History & Philosophy of Science GA 659BK UT WOS:000181757000081 ER PT J AU Wigley, T Caldeira, K Hoffert, M Santer, B Schlesinger, M Schneider, S Trenberth, K AF Wigley, T Caldeira, K Hoffert, M Santer, B Schlesinger, M Schneider, S Trenberth, K TI Climate research SO ISSUES IN SCIENCE AND TECHNOLOGY LA English DT Editorial Material C1 Natl Ctr Atmospher Res, Boulder, CO 80307 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. NYU, New York, NY USA. Univ Illinois, Urbana, IL 61801 USA. Stanford Univ, Stanford, CA 94305 USA. RP Wigley, T (reprint author), Natl Ctr Atmospher Res, Boulder, CO 80307 USA. RI Caldeira, Ken/E-7914-2011; Trenberth, Kevin/A-5683-2012; Santer, Benjamin/F-9781-2011 OI Trenberth, Kevin/0000-0002-1445-1000; NR 0 TC 0 Z9 0 U1 0 U2 0 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0748-5492 J9 ISSUES SCI TECHNOL JI Issues Sci. Technol. PD SPR PY 2003 VL 19 IS 3 BP 5 EP 6 PG 2 WC Engineering, Multidisciplinary; Engineering, Industrial; Multidisciplinary Sciences; Social Issues SC Engineering; Science & Technology - Other Topics; Social Issues GA 666GX UT WOS:000182170000002 ER PT J AU Benedick, R AF Benedick, R TI Climate research SO ISSUES IN SCIENCE AND TECHNOLOGY LA English DT Editorial Material C1 Pacific NW Natl Lab, Joint Global Change Res Inst, Richland, WA 99352 USA. RP Benedick, R (reprint author), Pacific NW Natl Lab, Joint Global Change Res Inst, Richland, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0748-5492 J9 ISSUES SCI TECHNOL JI Issues Sci. Technol. PD SPR PY 2003 VL 19 IS 3 BP 7 EP 8 PG 2 WC Engineering, Multidisciplinary; Engineering, Industrial; Multidisciplinary Sciences; Social Issues SC Engineering; Science & Technology - Other Topics; Social Issues GA 666GX UT WOS:000182170000004 ER PT J AU Han, SW Tripathy, S Miceli, PF Badica, E Covington, M Greene, LH Aprili, M AF Han, SW Tripathy, S Miceli, PF Badica, E Covington, M Greene, LH Aprili, M TI X-ray reflectivity study of interdiffusion at YBa2Cu3O7-x and metal interfaces SO JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS LA English DT Article DE interdiffusion; interface; surface; thin film; reflectivity; X-ray; YBCO; superconductor ID JOSEPHSON TUNNEL-JUNCTIONS; THIN-FILMS; AG; SUPERCONDUCTOR; GOLD; CONTACTS; DEPOSITION; SCATTERING; VORTICES; SYMMETRY AB We present a study of interdiffusion at interfaces of YBa2Cu3O7 - x (YBCO) and metals, Au, Ag, and Pb by using X-ray reflectivity. YBCO thin films were epitaxially grown by off-axis sputter deposition and coevaporation, with the c-axis perpendicular to the SrTiO3 substrate surfaces. The capping layers were subsequently deposited on the YBCO film in situ and ex situ near room temperature. Glancing incident X-ray reflectivity was employed to investigate the surfaces and their buried interfaces. We find that interdiffusion at the interfaces of Au/YBCO and Ag/YBCO is negligible. However, a large interdiffusion zone, similar to60 Angstrom, is present at the Pb/YBCO interface and the lead films grown, both in situ and ex situ, were entirely oxidized. We do not observe any diffraction peaks from the Pb/YBCO films. The diffraction peaks are found up to (007) from the YBCO films of the Au/YBCO and Ag/YBCO films. This implies that the loss of crystalline structure in a similar to300-Angstrom-thick YBCO film underneath Pb is caused by interdiffusion. C1 Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA. Univ Illinois, Dept Phys, Urbana, IL 61801 USA. Univ Paris 11, CNRS, CSNSM, F-91405 Orsay, France. RP Univ Calif Berkeley, Lawrence Berkeley Lab, Div Chem Sci, Berkeley, CA 94720 USA. NR 39 TC 6 Z9 6 U1 0 U2 3 PU JAPAN SOC APPLIED PHYSICS PI TOKYO PA KUDAN-KITA BUILDING 5TH FLOOR, 1-12-3 KUDAN-KITA, CHIYODA-KU, TOKYO, 102-0073, JAPAN SN 0021-4922 J9 JPN J APPL PHYS 1 JI Jpn. J. Appl. Phys. Part 1 - Regul. Pap. Brief Commun. Rev. Pap. PD MAR PY 2003 VL 42 IS 3 BP 1395 EP 1399 DI 10.1143/JJAP.42.1395 PG 5 WC Physics, Applied SC Physics GA 668DX UT WOS:000182276000059 ER PT J AU Phillips, JM Marechaux, T AF Phillips, JM Marechaux, T TI The story of the National Materials Advisory Board SO JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY LA English DT Editorial Material C1 CNR, Natl Mat Advisory Board, Washington, DC 20001 USA. Sandia Natl Labs, Phys & Chem Sci Ctr, Albuquerque, NM 87185 USA. RP Marechaux, T (reprint author), CNR, Natl Mat Advisory Board, 800 5th St NW, Washington, DC 20001 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 184 THORN HILL RD, WARRENDALE, PA 15086 USA SN 1047-4838 J9 JOM-J MIN MET MAT S JI JOM-J. Miner. Met. Mater. Soc. PD MAR PY 2003 VL 55 IS 3 BP 64 EP 64 DI 10.1007/s11837-003-0164-1 PG 1 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy; Mining & Mineral Processing GA 656TL UT WOS:000181624500010 ER PT J AU Ade, H Kilcoyne, ALD Tyliszczak, T Hitchcock, P Anderson, E Harteneck, B Rightor, EG Mitchell, GE Hitchcock, AP Warwick, T AF Ade, H Kilcoyne, ALD Tyliszczak, T Hitchcock, P Anderson, E Harteneck, B Rightor, EG Mitchell, GE Hitchcock, AP Warwick, T TI Scanning transmission X-ray microscopy at a bending magnet beamline at the Advanced Light Source SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID SPECTROSCOPY AB During the last two decades, scanning transmission x-ray microscopy (STXM) has evolved into a powerful characterization tool. For best performance, STXM's are located at undulator sources at synchrotron facilities. The scarcity and expense of undulator sources and associated beamlines limits the number of available STXMs. We have successfully re-examined the use of bending magnets as a source for a STXM and implemented a interferometer controlled STXM with excellent performance at the beamline 5.3.2. at the Advanced Light Source. Near the carbon K-edge, periodic features with 30 nm half-period could be resolved with a zone plate that has a 40 nm outermost zone width with an energy resolution corresponding to 100 meV and an intensity of about 1 MHz. The design and performance of the microscope are described. C1 N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada. Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Dow Chem Co USA, Midland, MI 48667 USA. RP Ade, H (reprint author), N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA. RI Ade, Harald/E-7471-2011; Kilcoyne, David/I-1465-2013 NR 8 TC 7 Z9 7 U1 1 U2 8 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 3 EP 8 DI 10.1051/jp4:200300017 PG 6 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900004 ER PT J AU Denbeaux, G Schneider, G Pearson, A Chao, W Bates, B Harteneck, B Olynick, D Anderson, E Fischer, P Juenger, M AF Denbeaux, G Schneider, G Pearson, A Chao, W Bates, B Harteneck, B Olynick, D Anderson, E Fischer, P Juenger, M TI Recent progress with high resolution X-ray microscopy at the XM-1 SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE C1 Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Max Planck Inst Met Res, D-70569 Stuttgart, Germany. Univ Calif Berkeley, Dept Civil & Environm Engn, Berkeley, CA 94720 USA. RP Denbeaux, G (reprint author), Lawrence Berkeley Natl Lab, Ctr Xray Opt, 1 Cyclotron Rd,MS 2-400, Berkeley, CA 94720 USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 9 EP 9 DI 10.1051/jp4:200300018 PG 1 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900005 ER PT J AU McNulty, I Paterson, D Arko, J Erdmann, M Frigo, SP Goetze, K Ilinski, P Krapf, N Mooney, T Retsch, CC Stampfl, APJ Vogt, S Wang, Y Xu, S AF McNulty, I Paterson, D Arko, J Erdmann, M Frigo, SP Goetze, K Ilinski, P Krapf, N Mooney, T Retsch, CC Stampfl, APJ Vogt, S Wang, Y Xu, S TI The 2-ID-B intermediate-energy scanning X-ray microscope at the APS SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID INTEGRATED-CIRCUIT INTERCONNECT; RESOLUTION; SPECTROMICROSCOPY; ELECTROMIGRATION; PERFORMANCE; MICROPROBE; TOMOGRAPHY AB The intermediate-energy scanning x-ray microscope at beamline 2-ID-B at the Advanced Photon Source is a dedicated instrument for materials and biological research. The microscope uses a zone plate lens to focus coherent 1-4 keV x-rays to a 60 nm focal spot of 10(9) photons/s onto the sample. It records simultaneous transmission and energy-resolved fluorescence images. We have used the microscope for nanotomography of chips and microspectroscopy of cells. C1 Argonne Natl Lab, Argonne, IL 60439 USA. No Arizona Univ, Dept Phys & Astron, Flagstaff, AZ 86011 USA. Univ Chicago, Dept Phys, Chicago, IL 60637 USA. ZAF PT, St Gobain Sekurit Deutschland, D-52134 Herzogenrath, Germany. Australian Nucl Sci & Technol Org, Div Phys, Menai, NSW 2234, Australia. X Radia Inc, Concord, CA 94520 USA. RP McNulty, I (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 NR 18 TC 26 Z9 26 U1 2 U2 5 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 11 EP 15 DI 10.1051/jp4:200300019 PG 5 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900006 ER PT J AU Cai, Z Lai, B Xiao, Y Xu, S AF Cai, Z Lai, B Xiao, Y Xu, S TI An X-ray diffraction microscope at the Advanced Photon Source SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID COLOSSAL MAGNETORESISTIVE FILMS; GRAIN-BOUNDARIES; MICRODIFFRACTION; MICROPROBE AB An instrument capable of high-resolution spatial mapping of crystallographic phase, lattice strain, and lattice distortion with x-rays of energies from 6 to 20 keV has been constructed and commissioned at the 2-ID-D beamline of the Advanced Photon Source. By integrating a hard x-ray Fresnel zone-plate-based microprobe and a six-circle diffractometer, the instrument provides a spatial resolution better than 250 nm, angular resolution of diffractometer circles better than 0.0001degrees, angular repeatability of the sample circles better than 0.001degrees, and almost full accessibility to the entire reciprocal space. The microprobe employs 10 cm and 40 cm (focal length at 8 keV) zone plates to provide high and moderate focusing power, respectively. Each zone-plate assembly has two identical zone plates stacked together to provide higher efficiency for higher energy (up to 30 keV) applications. The x-ray diffraction microscope has been applied to studies of the microstructures of bicrystal-supported magnetoresistive films. C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Cai, Z (reprint author), Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 11 TC 19 Z9 19 U1 0 U2 8 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 17 EP 20 DI 10.1051/jp4:200300020 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900007 ER PT J AU Beetz, T Jacobsen, C Kao, CC Kirz, J Mentes, O Sanchez-Hanke, C Sayre, D Shapiro, D AF Beetz, T Jacobsen, C Kao, CC Kirz, J Mentes, O Sanchez-Hanke, C Sayre, D Shapiro, D TI Development of a novel apparatus for experiments in soft X-ray diffraction imaging and diffraction tomography SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB We report the development of a novel experimental chamber for experiments in soft x-ray diffraction tomography, diffraction imaging of single biological objects, and magnetic speckle imaging. The chamber will allow for acquisition of nearly full three-dimensional diffraction data sets as well as high magnification zone plate images of holograms for the diffraction tomography experiment. C1 SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Upton, NY 11973 USA. RP Beetz, T (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RI Jacobsen, Chris/E-2827-2015 OI Jacobsen, Chris/0000-0001-8562-0353 NR 1 TC 2 Z9 2 U1 1 U2 4 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 27 EP 30 DI 10.1051/jp4:200300022 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900009 ER PT J AU Takemoto, K Mizuno, T Yoshikawa, T Mishibata, H Ueki, T Uyama, T Miyoshi, T Sawa, D Matsumoto, T Wada, N Onoda, H Kojima, K Niemann, B Hettwer, M Rudolph, D Anderson, E Attwood, D Kern, DP Iwasaki, H Kihara, H AF Takemoto, K Mizuno, T Yoshikawa, T Mishibata, H Ueki, T Uyama, T Miyoshi, T Sawa, D Matsumoto, T Wada, N Onoda, H Kojima, K Niemann, B Hettwer, M Rudolph, D Anderson, E Attwood, D Kern, DP Iwasaki, H Kihara, H TI X-ray microscopy in Ritsumeikan Synchrotron Radiation Center SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB X-ray microscopy enables high-resolution analysis of thick specimens such as several microns in aqueous and atmospheric pressure environments in fields of biological and material sciences. Most commonly, zone plates (ZPs) are used as optical elements in combination with the use of synchrotron radiation (SR) as an x-ray source. It is realized at the x-ray microscopy station at BL-12 of Ritsumeikan SR center. The highest spatial resolution is 45 nm. This X ray microscope has been applied in biology, medicine, and material science. Various specimens can be clearly observed. We report some applied researches of our X-ray microscope. C1 Kansai Med Univ, Dept Phys, Hirakata, Osaka 5731136, Japan. Ritsumeikan Univ, Fac Sci & Engn, Dept Photon, Shiga 5258577, Japan. Hiroshima Univ, Grad Sch Sci, Marine Biol Lab, Hiroshima 7220073, Japan. Fukui Med Univ, Dept Pathol 1, Fukui 9101193, Japan. Ritsumeikan Univ, Fac Sci & Engn, Dept Appl Chem, Shiga 5258577, Japan. Univ Gottingen, Inst Rontgenphys, D-37073 Gottingen, Germany. Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Univ Tubingen, Inst Angew Phys, Tubingen 1, Germany. RP Takemoto, K (reprint author), Kansai Med Univ, Dept Phys, Uyamahigashi 19-89, Hirakata, Osaka 5731136, Japan. NR 7 TC 1 Z9 1 U1 0 U2 1 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 57 EP 61 DI 10.1051/jp4:200300029 PG 5 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900016 ER PT J AU Hignette, O Cloetens, P Lee, WK Ludwig, W Rostaing, G AF Hignette, O Cloetens, P Lee, WK Ludwig, W Rostaing, G TI Hard X-ray microscopy with reflecting mirrors status and perspectives of the ESRF technology SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB Third generation synchrotron sources allow imaging at high energy with sub-micron resolution. The reflective optics systems, with their high efficiency and achromatic nature are promising approaches towards that goal. The Kirkpatrick Baez (KB) technology, being developed at the ESRF, has achieved a measured spot size of 0.16X0.21 mum at 20.5 keV on the ID19 beamline. Despite non-perfect optics, nearly diffraction size has been achieved in one direction. Examples of projection full field and microfluorescence scanning imaging are reported. The expected performance of these systems under coherent illumination and their applications are discussed in view of the progress achieved in optical manufacturing technology. C1 European Synchrotron Radiat Facil, F-38043 Grenoble, France. Argonne Natl Lab, Argonne, IL 60439 USA. RP Hignette, O (reprint author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. NR 7 TC 49 Z9 49 U1 0 U2 7 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 231 EP 234 DI 10.1051/jp4:200300068 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900055 ER PT J AU Bigault, T Ziegler, E Morawe, C Ludwig, W Soufli, R AF Bigault, T Ziegler, E Morawe, C Ludwig, W Soufli, R TI High spatial-resolution reflectivity and fluorescence mapping of multilayers using a sub-micrometer focused synchrotron X-ray beam SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB The quality of X-ray multilayers (roughness, composition, layer registry) is usually derived from specular reflectivity and diffuse scattering measurements, these signals being usually averaged over a beam footprint a few millimeters wide. However, some imaging applications involving multilayer optics, e.g., Extreme Ultra-Violet Lithography (EUVL) or synchrotron phase holo-tomography, require multilayers that provide a uniform response at the mum-scale or below. Therefore, the detection of defects at this scale, either present in or replicated through the multilayer, is essential to the development of defect-free reflective surfaces. In this paper a method capable of detecting such defects has been investigated. While a x-y piezo-driven stage raster scans the sample under the beam, the reflected signal can be recorded. Results obtained for Ru/Al2O3 and Ru/B4C designed for synchrotron optics and for Mo/Si multilayers for EUVL applications are presented. By choosing an incident energy slightly higher than the absorption edge of the heavy element of the multilayer structure, the fluorescence signals of the various components could be monitored simultaneously during reflectivity mapping. C1 European Synchrotron Radiat Facil, F-38043 Grenoble, France. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Bigault, T (reprint author), European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. OI Bigault, Thierry/0000-0002-8656-408X NR 7 TC 0 Z9 0 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 247 EP 250 DI 10.1051/jp4:200300072 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900059 ER PT J AU Takenaka, H Ichimaru, S Haga, T Ohchi, T Ito, H Muramatsu, Y Guilikson, EM Perera, RCC AF Takenaka, H Ichimaru, S Haga, T Ohchi, T Ito, H Muramatsu, Y Guilikson, EM Perera, RCC TI Fabrication of soft X-ray beam splitters for use in the wavelength region around 13 nm SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB Two kinds of soft X-ray beam splitters were fabricated for use at wavelengths around 13 nm: a Mo/Si multilayer beam splitter for near normal incidence and a Ru/SiN bilayer beam splitter for grazing incidence. In the wavelength region around 13 mn, measurements showed the Mo/Si multilayer beam splitter to have a reflectivity of 28% and a transmittance of 32% at a grazing incidenct angle of 80degrees, and the Ru/SiN bilayer beam splitter to have a reflectivity and transmittance of 11% at a grazing incidenct angle of 17.5degrees. C1 NTT Adv Technol Co, Tokai, Ibaraki 3191193, Japan. NTT Corp, Microintegrat Syst Lab, Atsugi, Kanagawa 2430198, Japan. Japan Atom Energy Res Inst, Kouto, Hyogo 6795148, Japan. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Takenaka, H (reprint author), NTT Adv Technol Co, 162 Shirakata, Tokai, Ibaraki 3191193, Japan. RI Haga, Tsuneyuki/C-3372-2015 NR 9 TC 3 Z9 3 U1 0 U2 0 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 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 251 EP 254 DI 10.1051/jp4:200300073 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900060 ER PT J AU Takenaka, H Nagai, K Ito, H Ichimaru, S Ohchi, T Muramatsu, Y Gullikson, EM AF Takenaka, H Nagai, K Ito, H Ichimaru, S Ohchi, T Muramatsu, Y Gullikson, EM TI High reflective CoxCr1-x/C multilayer mirror for using X-ray photoemission spectroscopy in the wavelength region around 6 nm SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID SPECTROMICROSCOPY; MO/SI AB The development of highly reflective multilayer mirrors for use in the wavelength region around 6-nm is desired for X-ray photoemission spectroscopy for inner-shell excitation using a Schwarzschild objective. For this application, reflectivity is the most critical parameter determining the performance of multilayer mirrors, because the reflectivity of multilayers in the 6-nm region is generally very low. We have fabricated the Co/C and Cr/C multilayer mirrors by magnetron sputtering. The measured peak reflectivity of the Cr/C multilayer is about 18.9% at the wavelength of 6.42 nm and the incident angle of 88degrees and the reflectivity of the Co/C multilayer is 10.1% at the wavelength of 6.06 nm and the incident angle of 88degrees. The reflectivities of the Cr/C and Co0.8Cr0.2/C multilayers are enough high. Therefore, we found that Cr/C or CoxCr1-x/C multilayer is sufficiently used for Schwarzschild mirror for X-ray photoemission spectroscopy at 6 nm X-ray. C1 NTT Adv Technol Co, Tokai, Ibaraki 3191193, Japan. Japan Atom Energy Res Inst, Kouto, Hyogo 6795148, Japan. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Takenaka, H (reprint author), NTT Adv Technol Co, 162 Shirakata, Tokai, Ibaraki 3191193, Japan. NR 10 TC 1 Z9 1 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 255 EP 258 DI 10.1051/jp4.:200300074 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900061 ER PT J AU Maser, J Wagner, D Lai, B Cai, Z Legnini, D Moric, I Bermudez, L AF Maser, J Wagner, D Lai, B Cai, Z Legnini, D Moric, I Bermudez, L TI Trace metals and their relation to bacterial infections studied by X-ray microscopy SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID MYCOBACTERIUM-AVIUM; TUBERCULOSIS; MACROPHAGES; MICROPROBE AB Bacterial pathogens survive in different environments in the human host by responding with expression of virulence factors that enable them to adapt to changing conditions. Trace elements regulate the expression of many virulence genes in bacteria and are thus important for their survival in the host. Mycobacteria are intracellular pathogens that can cause diseases such as tuberculosis or secondary infections in immunocompromised patients. We have used a hard x-ray microprobc to study the trace element distribution in the mycobacterial phagosome after infection of macrophages. We have studied phagosomes with virulent (M. avium) and nonvirulent (M. smegmatis) mycobacteria. In this article, we will show that the iron concentration in phagosomes with macrophages infected with nonvirulent M. smegmatis is reduced 24 hours after infection but increased in phagosomes in cells infected with virulent M. avium. In addition, we will show the effect activation of macrophages with tumor necrosis factor (TNF-alpha) or interferon (IFN-gamma) has on the iron concentration in M. avium. C1 Argonne Natl Lab, Expt Facilities Div, Argonne, IL 60439 USA. Univ Freiburg, Dept Internal Med 2, D-79106 Freiburg, Germany. Kuzell Inst Arthritis & Infectious Dis, San Francisco, CA 94115 USA. RP Maser, J (reprint author), Argonne Natl Lab, Expt Facilities Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Wagner, Dirk/G-4598-2013; Maser, Jorg/K-6817-2013; Wagner, Dirk/D-9778-2016 OI Wagner, Dirk/0000-0002-3271-5815 NR 13 TC 2 Z9 2 U1 1 U2 4 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 283 EP 288 DI 10.1051/jp4:200300081 PG 6 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900068 ER PT J AU Dillon, CT Kennedy, BJ Lay, PA Lai, B Cai, Z Stampfl, APJ Ilinski, P Legnini, D Maser, J Rodrigues, W Shea-McCarthy, G Cholewa, M AF Dillon, CT Kennedy, BJ Lay, PA Lai, B Cai, Z Stampfl, APJ Ilinski, P Legnini, D Maser, J Rodrigues, W Shea-McCarthy, G Cholewa, M TI Implementation of X-ray microscopy and micro-XANES analysis for investigations of the cellular uptake and cellular metabolism of transition metals SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID HAMSTER LUNG-CELLS; CHROMIUM; GENOTOXICITY; COMPLEXES AB Micro-SRIXE (synchrotron-radiation-induced X-ray emission) and micro-XAS (X-ray absorption spectroscopy) were used to probe the uptake of exogenous metals by cells. The high flux and the sub-micron resolution of the hard X-ray microprobe, offer the experimenter the ability to obtain highly sensitive spatial and structural information of cellular elements. In this work the uptake of carcinogenic Cr(VI) was compared with that of a relatively non-toxic Cr(III) complex by micro-SRIXE mapping of whole cells. High intracellular Cr concentrations were observed in Cr(VI)-treated cells, while no significant Cr uptake was observed for Cr(Ill)-treated cells, as is consistent with uptake studies performed by other techniques. Micro-XANES analysis of Cr(V)- and Cr(VI)-treated cells showed that the predominant oxidation product following cellular metabolism was Cr(III). As shown by X-ray microscopic analysis of thin-sectioned cells, however, the reduction of Cr(VI) to Cr(III) did not occur at a fast enough rate to exclude Cr entry into the cell nucleus. C1 Univ Sydney, Sch Chem, Ctr Heavy Metals Res, Sydney, NSW 2006, Australia. Argonne Natl Lab, Expt Facil Div, Argonne, IL 60439 USA. Australian Nucl Sci & Technol Org, Div Phys, Menai, NSW 2234, Australia. Brookhaven Natl Lab, Upton, NY 11973 USA. Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany. RP Dillon, CT (reprint author), Univ Sydney, Sch Chem, Ctr Heavy Metals Res, Sydney, NSW 2006, Australia. RI Cholewa, Marian/C-9474-2011; Maser, Jorg/K-6817-2013; Lay, Peter/B-4698-2014; OI Lay, Peter/0000-0002-3232-2720; Kennedy, Brendan/0000-0002-7187-4579 NR 9 TC 8 Z9 8 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 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 293 EP 296 DI 10.1051/jp4:200300083 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900070 ER PT J AU Paunesku, T Stojicevic, N Vogt, S Maser, J Lai, B Rajh, T Thurnauer, M Woloschak, G AF Paunesku, T Stojicevic, N Vogt, S Maser, J Lai, B Rajh, T Thurnauer, M Woloschak, G TI Intracellular localization of titanium dioxide-biomolecule nanocomposites SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB Emerging areas of nanotechnology hold the promise of overcoming the limitations of existing technology for intracellular manipulation. These new developments include the creation of nanocomposites that can be introduced into the cells, targeted to specific subcellular sites, and subsequently used as platforms for initiation of intracellular processes dependent on or aided by locally high concentrations of specific molecules delivered as components of the nanocomposites. Nanocomposites that combine functional properties of biomolecules with the functional properties of inorganic components could provide new tools for biology, medicine, chemistry and material sciences. Here we describe how we introduced TiO2-DNA nanocomposites into cells, and localized titanium in the cells by mapping the Ti Kalpha X-ray fluorescence induced at the 2-ID-E microprobe of the SRI-CAT at the Advanced Photon Source at Argonne National Laboratory. C1 Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA. Argonne Natl Lab, Adv Photon Source, SRI CAT, Argonne, IL 60439 USA. Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA. RP Paunesku, T (reprint author), Northwestern Univ, Dept Radiol, 303 E Chicago Ave, Chicago, IL 60611 USA. RI Maser, Jorg/K-6817-2013; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013; Paunesku, Tatjana/A-3488-2017; Woloschak, Gayle/A-3799-2017 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513; Paunesku, Tatjana/0000-0001-8698-2938; Woloschak, Gayle/0000-0001-9209-8954 NR 2 TC 4 Z9 4 U1 0 U2 3 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 317 EP 319 DI 10.1051/jp4:200300089 PG 3 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900076 ER PT J AU Smith, AD Schofield, PF Scholl, A Pattrick, RAD Bridges, JC AF Smith, AD Schofield, PF Scholl, A Pattrick, RAD Bridges, JC TI XPEEM valence state imaging of mineral micro-intergrowths with a spatial resolution of 100 nm SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID X-RAY-ABSORPTION; SPECTROSCOPY AB The crystal chemistry and textural relationships of minerals hold a vast amount of information relating to the formation, history and stability of natural materials. The application of soft X-ray spectroscopy to mineralogical material has revealed that 2p(L-2,L- (3)) spectra provide a sensitive fingerprint of the electronic states of 3d metals. In bulk powdered samples much of the textural and microstructural information is lost, but the area-selectivity capability of X-ray Photo-Emission Electron Microscopy (XPEEM) provides the ability to obtain valence state information from mineral intergrowths with a submicron spatial resolution. Using the state-of-the-art PEEM2 facility on beamline 7.3.1.1 at the Advanced Light Source, Berkeley, USA, a range of minerals, mineral intergrowths and mineralogical textures have been studied for a broad suite of geological, planetary and environmental science materials. High-quality, multi-element valence images have been obtained showing the distribution/variation of the metal valence states across single grains or mineral intergrowths/textures at the 100 nm scale and quantitative valence state ratios can be obtained from areas of similar to0.01 mum(2). C1 CLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England. Nat Hist Museum, Dept Mineral, London SW7 5BD, England. Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. Univ Manchester, Dept Earth Sci, Manchester M13 9PL, Lancs, England. RP Smith, AD (reprint author), CLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England. RI Scholl, Andreas/K-4876-2012 NR 12 TC 7 Z9 7 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 373 EP 376 DI 10.1051/jp4:20030102 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900089 ER PT J AU Knochel, C Thieme, J Gleber, S Schneider, G Bates, W Schmahl, G AF Knochel, C Thieme, J Gleber, S Schneider, G Bates, W Schmahl, G TI Tomographic studies of nontronite particles in aqueous media SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID RAY AB X-ray microscopy allows the direct visualization of soil colloids in water. In combination with tomographic techniques it is possible to visualize the three dimensional distribution of the linear absorption coefficient of soil colloids and to investigate the surface amount and spatial arrangement of the particles. First experiments of Nontronite particles from the XM-1 are presented. C1 Univ Gottingen, Inst Xray Phys, D-37073 Gottingen, Germany. Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. RP Knochel, C (reprint author), Univ Gottingen, Inst Xray Phys, Geiststr 11, D-37073 Gottingen, Germany. RI Thieme, Juergen/D-6814-2013 NR 5 TC 1 Z9 1 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 425 EP 428 DI 10.1051/jp4:20030114 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900101 ER PT J AU Twining, BS Baines, SB Fisher, NS Jacobsen, C Maser, J AF Twining, BS Baines, SB Fisher, NS Jacobsen, C Maser, J TI Quantification and localization of trace metals in natural plankton cells using a synchrotron X-ray fluorescence microprobe SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID PHYTOPLANKTON BLOOM; IRON FERTILIZATION; DEFICIENCY; OCEAN AB The accumulation of trace metals by planktonic protists influences the growth of primary producers, metal biogeochemical cycling, and metal bioaccumulation in aquatic food chains. Despite their importance, unequivocal measurements of trace element concentrations in individual plankton cells have not been possible to date. We have used the 2-ID-E side-branch hard x-ray microprobe at the Advanced Photon Source to measure trace elements in individual marine plankton cells. This microprobe employs zoneplate optics to produce the sub-micron spatial resolution and low background fluorescence required to produce trace element maps of planktonic protist cells ranging in size from 3 to >50 mum. We have developed preservation, rinsing, and mounting protocols that remove most of the salt from our marine samples, thus simplifying the identification of unknown cells and reducing high Cl-related background fluorescence. We have also developed spectral modeling techniques that account for the frequent overlap of adjacent fluorescence peaks and non-uniform detector response. Finally, we have used parallel soft x-ray transmission and epifluorescence microscopy images to estimate C normalized trace element concentrations, identify functional cell types (e.g., photosynthetic vs. non-photosynthetic), and correlate cell structures with spatial patterns in trace element fluorescence. C1 SUNY Stony Brook, Marine Sci Res Ctr, Stony Brook, NY 11794 USA. SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Twining, BS (reprint author), SUNY Stony Brook, Marine Sci Res Ctr, Stony Brook, NY 11794 USA. RI Maser, Jorg/K-6817-2013; Jacobsen, Chris/E-2827-2015; OI Jacobsen, Chris/0000-0001-8562-0353; Twining, Benjamin/0000-0002-1365-9192 NR 9 TC 10 Z9 10 U1 0 U2 6 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 435 EP 438 DI 10.1051/jp4:20030117 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900104 ER PT J AU Neuhausler, U Feng, H Jones, KW AF Neuhausler, U Feng, H Jones, KW TI Characterization of sulfur in New York New Jersey waterway sediment SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB Sulfur plays an important role in the biogeochemical cycle of trace elements and in the diagenetic reactions in sediments/soils. Due to very low solubility of sulfide compounds, metal sulfides are a big concern in the coastal and marine environment. in this study, we investigated sulfur compounds and speciation in contaminated sediments from the waterways of New York and New Jersey in the region of New York City, USA. Measurements were made on particles from the National Institute of Standards and Technology Standard Reference Material (SRM) 1944 (a composite from 6 locations) and from a mud flat on the Passaic River in New Jersey, USA. The experimental measurements were made at the ID21 X-ray Microscopy beamline at the European Synchrotron Radiation Facility (ESRF), France. Maps of the Si, P, and S distributions were made with a sub-mum beam on individual sediment particles. In order to chemically specify sulfur, X-ray absorption near-edge spectroscopy (XANES) measurements were taken from selected areas (regions-of-interest) within these maps. C1 European Synchrotron Radiat Facil, X Ray Microscopy Beamline ID21, F-38043 Grenoble, France. Montclair State Univ, Dept Earth & Environm Studies, Montclair, NJ 07043 USA. Brookhaven Natl Lab, Lab Earth & Environm Sci, Upton, NY 11973 USA. RP Neuhausler, U (reprint author), European Synchrotron Radiat Facil, X Ray Microscopy Beamline ID21, BP 220, F-38043 Grenoble, France. NR 6 TC 4 Z9 4 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 439 EP 442 DI 10.1051/jp4:20030118 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900105 ER PT J AU Fischer, P Denbeaux, G Stoll, H Puzic, A Raabe, J Nolting, F Eimuller, T Schutz, G AF Fischer, P Denbeaux, G Stoll, H Puzic, A Raabe, J Nolting, F Eimuller, T Schutz, G TI Magnetic imaging with soft X-ray microscopies SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID DOMAINS AB yyX-ray magnetic circular dichroism yields at inner-core absorption edges large values up to 50%. This serves as huge magnetic contrast mechanism to image magnetic domain structures. The current status of magnetic soft X-ray microscopy providing currently a resolution down to about 20nm to study static domain configurations is demonstrated by selected examples on high magnetostrictive thin films and laterally microstructured elements measured at the XM-I microscope at the ALS (Berkeley CA). Element-specificity allows insight into magnetic coupling mechanisms and the evolution of the domain patterns within full hysteresis loops can be studied by recording the images within external magnetic fields. Both in-plane and out-of-plane configurations of the magnetization can be addressed by tilting the sample at an axis perpendicular to the photon propagation direction. Magnetic X-PEEM measurements obtained at the Swiss Light Source provide complementary information. Spin dynamics, i.e. precession and relaxation of the magnetization, can be addressed by taking into account the inherent pulsed time structure of synchrotrons. First results with a sub-100psee time resolution obtained in a stroboscopic pump-probe experiment with a patterned permalloy element at the XM-1are reported. C1 Max Planck Inst Met Res, D-70569 Stuttgart, Germany. Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Univ Regensburg, D-93053 Regensburg, Germany. Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland. RP Fischer, P (reprint author), Max Planck Inst Met Res, Postfach 80 06 65,Heisenberg Str 1, D-70569 Stuttgart, Germany. RI Fischer, Peter/A-3020-2010; Raabe, Joerg/C-4818-2012 OI Fischer, Peter/0000-0002-9824-9343; Raabe, Joerg/0000-0002-2071-6896 NR 12 TC 6 Z9 6 U1 0 U2 1 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 471 EP 476 DI 10.1051/jp4:20030125 PG 6 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900112 ER PT J AU Denbeaux, G Anderson, E Bates, B Chao, W Liddle, JA Harteneck, B Pearson, A Salmassi, F Schneider, G Fischer, P Eimuller, T Taylor, S Chang, H Kusinski, GJ AF Denbeaux, G Anderson, E Bates, B Chao, W Liddle, JA Harteneck, B Pearson, A Salmassi, F Schneider, G Fischer, P Eimuller, T Taylor, S Chang, H Kusinski, GJ TI X-ray magnetic microscopy for correlations between magnetic domains and crystal structure SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID CO/PT MULTILAYERS; 25 NM AB Accurately determining the resolution of x-ray microscopes has been a challenge because good test patterns for x-ray microscopy have been hard to make. We report on a sputter-deposited multilayer imaged in cross section as a test pattern with small features and high aspect ratios. One application of high-resolution imaging is magnetic materials. Off-axis bend magnet radiation is known to have a component of circular polarization which can be used for x-ray magnetic circular dichroism. We calculate the integrated circular polarization collected by the illumination optics in the XM-1 full-field x-ray microscope. C1 Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Max Planck Inst Met Res, D-70569 Stuttgart, Germany. Lawrence Berkeley Natl Lab, Div Sci Mat, Berkeley, CA 94720 USA. MMFX Technol, Irvine, CA USA. RP Denbeaux, G (reprint author), Lawrence Berkeley Natl Lab, Ctr Xray Opt, 1 Cyclotron Rd,MS 2-400, Berkeley, CA 94720 USA. RI Fischer, Peter/A-3020-2010; Liddle, James/A-4867-2013 OI Fischer, Peter/0000-0002-9824-9343; Liddle, James/0000-0002-2508-7910 NR 13 TC 1 Z9 1 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 477 EP 481 DI 10.1051/jp4:20030126 PG 5 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900113 ER PT J AU Eimuller, T Fischer, P Guttmann, P Denbeaux, G Scholz, M Kohler, M Schmahl, G Bayreuther, G Schutz, G AF Eimuller, T Fischer, P Guttmann, P Denbeaux, G Scholz, M Kohler, M Schmahl, G Bayreuther, G Schutz, G TI Multilayered magnetic nanostrips studied by transmission X-ray microscopy SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID CIRCULAR-DICHROISM; DOMAINS; INSTABILITIES; EVOLUTION AB Transmission x-ray microscopy with the x-ray magnetic circular dichroism as a contrast mechanism was used to image the field dependent evolution of magnetic domains in artificially nanostructured strips of a multilayered Fe/Gd system. A diversity of domain configurations have been imaged for different strengths of the applied magnetic field and different widths of the strips, varying between 100 nm, and 1 mum. Undulating domain patterns, analogous to those observed in other condensed matter systems could be found. C1 Max Planck Inst Met Res, D-70569 Stuttgart, Germany. Univ Gottingen, Inst Xray Phys, D-37073 Gottingen, Germany. Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Univ Regensburg, D-93040 Regensburg, Germany. RP Eimuller, T (reprint author), Max Planck Inst Met Res, Heisenberg Str 1, D-70569 Stuttgart, Germany. RI Fischer, Peter/A-3020-2010; Guttmann, Peter/H-9869-2015 OI Fischer, Peter/0000-0002-9824-9343; Guttmann, Peter/0000-0002-0534-238X NR 12 TC 0 Z9 0 U1 0 U2 3 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 483 EP 486 DI 10.1051/jp4:20030127 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900114 ER PT J AU Smith, AD Pradell, T Molera, J Vendrell, M Marcus, MA Pantos, E AF Smith, AD Pradell, T Molera, J Vendrell, M Marcus, MA Pantos, E TI MicroEXAFS study into the oxidation states of copper coloured Hispano-Moresque lustre decorations SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID POTTERY; GLAZES AB Lustreware is a traditional decorative finish applied to ceramics, giving a copper-gold metallic finish. Following an Islamic tradition, it was a highly prized luxury finish that was exported throughout the Mediterranean in medieval times. The technology required to produce the highly desired artifacts was the province of highly skilled artisans, that it was also non-trivial is evidenced by the slow development of rival production centres elsewhere and the large proportion of fragments from failed production runs found at the established centres. We have used the MicroEXAFS facility on Beamline 10.3.2 at the ALS to determine the spatial distributions of the Cu oxidation states both within areas of a constant colour and in different coloured specimens. Fluorescence microXAFS is an important technique and has enabled us to penetrate the predominately Al and Si surface layer (of the order of 100Angstrom - 200 Angstrom thick) to probe the metal glaze beneath. C1 CCLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England. Univ Politecn Cataluna, CEIB, Dept FEN, ESAB, Barcelona 08036, Spain. Univ Barcelona, Dept Cristallog & Mineral, Barcelona 08028, Spain. Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Smith, AD (reprint author), CCLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England. RI Pradell, Trinitat/D-4765-2014; Molera, Judit/K-9474-2013 OI Pradell, Trinitat/0000-0002-8720-5492; Molera, Judit/0000-0003-3116-0456 NR 6 TC 16 Z9 16 U1 0 U2 1 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 519 EP 522 DI 10.1051/jp4:20030136 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900123 ER PT J AU Feser, M Jacobsen, C Rehak, P DeGeronimo, G AF Feser, M Jacobsen, C Rehak, P DeGeronimo, G TI Scanning transmission X-ray microscopy with a segmented detector SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID RESOLUTION; SPECIMENS; STEM AB A segmented silicon detector has been developed for the Stony Brook soft x-ray scanning transmission x-ray microscope. The detector combines good detective quantum efficiency (90% at 520 eV) and low noise (approximate to5 photons/channel/ integration at 520 eV) with the ability of having up to 10 independent sensitive regions that are matched to the microscope geometry. In addition to the usual bright field images, differential phase contrast images and dark field images are recorded simultaneously in one scan. A Fourier filtering method has been employed to recover an estimate of the sample absorption and phase shift from the partially coherent images collected on the detector segments. 'A reconstruction of a Germanium test pattern exhibits good agreement between the predictions from the tabulated x-ray optical constants and the experiment. C1 SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Instrumentat Div, Upton, NY 11973 USA. RP Feser, M (reprint author), SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA. RI Jacobsen, Chris/E-2827-2015 OI Jacobsen, Chris/0000-0001-8562-0353 NR 9 TC 15 Z9 15 U1 0 U2 1 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 529 EP 534 DI 10.1051/jp4:20030138 PG 6 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900125 ER PT J AU Howells, MR Chapman, H Hau-Riege, S He, H Marchesini, S Spence, J Weierstall, U AF Howells, MR Chapman, H Hau-Riege, S He, H Marchesini, S Spence, J Weierstall, U TI X-ray microscopy by phase-retrieval methods at the advanced light source SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID DIFFRACTION; RECONSTRUCTION; ALGORITHMS; ELECTRON AB We report our experiments in soft x-ray coherent diffraction leading to reconstructed images via phase retrieval methods. We describe the history and principles of the method and the technical systems we have used to implement it. The main requirement is to have a sufficiently isolated sample. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA. RP Howells, MR (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. RI Marchesini, Stefano/A-6795-2009; Chapman, Henry/G-2153-2010; Weierstall, Uwe/B-3568-2011 OI Chapman, Henry/0000-0002-4655-1743; NR 17 TC 4 Z9 4 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 557 EP 561 DI 10.1051/jp4:20030143 PG 5 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900130 ER PT J AU Neuhausler, U Schneider, G Ludwig, W Hambach, D AF Neuhausler, U Schneider, G Ludwig, W Hambach, D TI Phase contrast X-ray microscopy at 4 keV photon energy with 60 nm resolution SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID ELECTROMIGRATION AB X-ray microscopy in the multi-keV photon energy range offers unique possibilities to study relatively thick samples with high spatial resolution. When employing a high N.A. condenser zone plate for sample illumination in combination with a high resolution micro zone plate objective lens, a spatial resolution of currently 60 nm is achieved. We report here on phase contrast X-ray microscopy at 4 keV photon energy on copper interconnect structures, buried in silicon dioxide. While the amplitude contrast in these samples is only 7%, negative as well as positive phase contrast were demonstrated using 2.2 mum and 0.7 mum high Nickel phase rings with a contrast of 30% and 39%, respectively. C1 European Synchrotron Radiat Facil, Xray Microscopy Beamline ID21, ESRF, F-38043 Grenoble, France. Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Univ Gottingen, Inst Rontgenphys, D-37073 Gottingen, Germany. RP Neuhausler, U (reprint author), European Synchrotron Radiat Facil, Xray Microscopy Beamline ID21, ESRF, BP 220, F-38043 Grenoble, France. RI Ludwig, Wolfgang/G-5823-2012 NR 11 TC 11 Z9 11 U1 0 U2 0 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 567 EP 570 DI 10.1051/jp4:20030145 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900132 ER PT J AU Schneider, G Denbeaux, G Anderson, E Pearson, A Bates, W Vogt, S Knochel, C Meyer, MA Zschech, E AF Schneider, G Denbeaux, G Anderson, E Pearson, A Bates, W Vogt, S Knochel, C Meyer, MA Zschech, E TI High resolution X-ray tomography with applications in biology and materials science SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID COMPUTED-TOMOGRAPHY; MICROSCOPY; ELECTROMIGRATION AB With the new tomography setup developed for the x-ray microscope XM-1 installed at the Advanced Light Source, tomography of immunolabelled frozen-hydrated cells to detect protein distributions inside of cells was performed. The distribution of the nuclear protein, male specific lethal 1 (MSL-1) in the Drosophila melanogaster cell was studied. Another application field for high resolution tomography which is of fundamental interest in materials science is electromigration in advanced copper interconnects. In this work, quantitative time-resolved x-ray microscopy mass transport studies of the early stages of electromigration in an inlaid Cu line/via structure were performed with 40 nm spatial resolution at 1.8 keV photon energy. Correlation of the real time x-ray microscopy images with post mortem high voltage electron micrographs of the sample shows that the void nucleation occurs at the site of grain boundaries in Cu and that the voids migrate along these grain boundaries during electromigration. To provide 3D information about the exact location (bulk or interface) of void nucleation and migration during an EM experiment, as well as to measure quantitatively the mass transport in the volume, future experiments must be based on time-resolved x-ray tomography. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Univ Gottingen, Inst Rontgenphys, D-37073 Gottingen, Germany. AMD Saxony LLC & Co KG, D-01330 Dresden, Germany. RP Schneider, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, 1 Cyclotron Rd,MS 2-400, Berkeley, CA 94720 USA. RI Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 NR 11 TC 8 Z9 8 U1 0 U2 2 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 607 EP 613 DI 10.1051/jp4:20030155 PG 7 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900142 ER PT J AU Vogt, S Maser, J Jacobsen, C AF Vogt, S Maser, J Jacobsen, C TI Data analysis for X-ray fluorescence imaging SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB X-ray-microprobe-based X-ray fluorescence (XRF) scanning microscopy is a powerful technique to map and quantify element distributions in biological specimens, such as cells and bacteria. Principal component analysis (PCA) provides a method to correlate an XRF data set with full spectra at each scan point and to weigh each component of the spectrum, and its corresponding eigenimage, according to its respective significance in the data set. In particular, photon noise is not correlated among pixels and therefore does not contribute to the principal components. We show that, by fitting the eigenspectra of the principal components, one can then generate maps of fitted elemental components with high accuracy, without the need to fit the spectra of single pixels. Additionally, the correlation of elemental distributions can be used to reveal information about the number and composition of the different major constituents of a cell. We also demonstrate that cluster analysis can be used to classify the sample into spatially separate regions of characteristic elemental compositions, for example nucleus, cytoplasm, and vesicles. C1 Argonne Natl Lab, Expt Facilities Div, Argonne, IL 60439 USA. SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RP Vogt, S (reprint author), Argonne Natl Lab, Expt Facilities Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Maser, Jorg/K-6817-2013; Jacobsen, Chris/E-2827-2015; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Jacobsen, Chris/0000-0001-8562-0353; Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 NR 9 TC 33 Z9 33 U1 2 U2 13 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 617 EP 622 DI 10.1051/jp4:20030156 PG 6 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900143 ER PT J AU Jacobsen, C Feser, M Lerotic, M Vogt, S Maser, J Schafer, T AF Jacobsen, C Feser, M Lerotic, M Vogt, S Maser, J Schafer, T TI Cluster analysis of soft X-ray spectromicroscopy data SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE ID SPECTROSCOPY; SEQUENCES; SPECTRA; IMAGES AB We describe the use of principle component analysis (PCA) to serve as a prefilter for cluster analysis or pattern recognition analysis of soft x-ray spectromicroscopy data. Cluster analysis provides a method to group regions with common spectral features even if no prior knowledge of their spectra is available, such as in biology or environmental science. C1 SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany. RP Jacobsen, C (reprint author), SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. RI Schafer, Thorsten /A-1258-2010; Maser, Jorg/K-6817-2013; Jacobsen, Chris/E-2827-2015; Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Schafer, Thorsten /0000-0002-7133-8717; Jacobsen, Chris/0000-0001-8562-0353; Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 NR 11 TC 11 Z9 11 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 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 623 EP 626 DI 10.1051/jp4:20030157 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900144 ER PT J AU Vogt, S AF Vogt, S TI MAPS: A set of software tools for analysis and visualization of 3D X-ray fluorescence data sets SO JOURNAL DE PHYSIQUE IV LA English DT Article; Proceedings Paper CT 7th International Conference on X-Ray Microscopy CY JUL 28-AUG 02, 2002 CL GRENOBLE, FRANCE AB X-ray fluorescence (XRF) imaging of biological cells typically involves the creation (and subsequent analysis) of 3-dimensional (313) data sets, where at each scan position the full spectrum is recorded. This allows one to later process the data in a variety of different approaches, e.g., by spectral region of interest (ROIE) summation with or without background subtraction, principal component analysis, or fitting. Additionally, it is possible to sum up the per pixel spectra over selected spatial ROIs so as to improve the photon statistics in such a spectrum. A software package is presented here that implements these functions to provide a toolset for the analysis of 3D XRF data sets. C1 Argonne Natl Lab, Expt Facilities Div, Argonne, IL 60439 USA. RP Vogt, S (reprint author), Argonne Natl Lab, Expt Facilities Div, 9700 S Cass Ave, Argonne, IL 60439 USA. RI Vogt, Stefan/B-9547-2009; Vogt, Stefan/J-7937-2013 OI Vogt, Stefan/0000-0002-8034-5513; Vogt, Stefan/0000-0002-8034-5513 NR 7 TC 161 Z9 161 U1 2 U2 29 PU E D P SCIENCES PI LES ULIS CEDEXA PA 7, AVE DU HOGGAR, PARC D ACTIVITES COURTABOEUF, BP 112, F-91944 LES ULIS CEDEXA, FRANCE SN 1155-4339 J9 J PHYS IV JI J. Phys. IV PD MAR PY 2003 VL 104 BP 635 EP 638 DI 10.1051/jp4:20030160 PG 4 WC Physics, Multidisciplinary SC Physics GA 685QC UT WOS:000183273900147 ER PT J AU Curry, JJ Adler, HG Shastri, SD Lee, WK AF Curry, JJ Adler, HG Shastri, SD Lee, WK TI X-ray induced fluorescence measurement of density distributions in a metal-halide lighting arc SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID LASER-INDUCED FLUORESCENCE; STATE SCANDIUM IONS; OPTOGALVANIC SPECTROSCOPY; DISCHARGE; LAMP AB The use of x-ray induced fluorescence to measure elemental densities in a metal-halide lighting arc is described. High-energy synchrotron radiation generated on the Sector 1 Insertion Device beam line at the Advanced Photon Source induces K-shell fluorescence in a high-pressure plasma arc. The detected fluorescence is spectrally resolved, so that multiple elemental species are observed simultaneously. Absolute calibration of the measured densities is straightforward and robust. The penetrating nature of high-energy photons allows these measurements to be made in situ, with the arc contained by an optically translucent polycrystalline alumina (Al2O3) arc tube and a glass vacuum jacket. Spatial distributions extending from one end of the arc tube to the other and from the arc core all-the way to the wall have been obtained for all the principal elements in the arc. A volume element measuring 1 mm x 1 mm x 1 mm is resolved in the present work, with significantly better spatial resolution possible. Densities as low as 2x10(16) cm(-3) have been observed. X-ray induced fluorescence is useful for the observation of many important high-pressure plasma lighting chemistries including those containing Hg, Tl, Dy, Tm, Ho, Cs, Sn, I, and Xe. (C) 2003 American Institute of Physics. C1 Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA. OSRAM SYLVANIA, Beverly, MA 01915 USA. Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Curry, JJ (reprint author), Natl Inst Stand & Technol, 100 Bur Dr,Stop 8422, Gaithersburg, MD 20899 USA. NR 23 TC 14 Z9 14 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 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2359 EP 2368 DI 10.1063/1.1534623 PG 10 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000006 ER PT J AU Ko, SC Lee, S Hsueh, CH AF Ko, SC Lee, S Hsueh, CH TI Viscoelastic stress relaxation in film/substrate systems - Kelvin model SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID THIN-FILMS; VISCOUS-FLOW; RESIDUAL-STRESSES; SILICON; SUBSTRATE; VISCOSITY AB Although the Maxwell model was widely applied to analyze viscoelastic behavior of film/substrate systems, Rafferty et al. [Appl. Phys. Lett. 54, 151 (1989)] found that the structural relaxation of silicon oxide films on silicon wafers during thermal annealing could be explained by the Kelvin model but not the Maxwell model. This result motivated us to investigate the relaxation of residual stresses due to viscoelastic deformation in a film/substrate system using the Kelvin model. The system can be a viscoelastic film on an elastic substrate or an elastic film on a viscoelastic substrate. The viscoelastic solutions of both cases can be obtained from the elastic solution using the Laplace transform. The stress relaxation rate increases with decreasing film-to-substrate thickness ratio for a viscoelastic film deposited on an elastic substrate. However, it shows the opposite trend for an elastic film deposited on a viscoelastic substrate. The present results are compared with those obtained from the Maxwell model. (C) 2003 American Institute of Physics. C1 Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. RP Lee, S (reprint author), Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 30013, Taiwan. RI Hsueh, Chun-Hway/G-1345-2011 NR 21 TC 12 Z9 12 U1 0 U2 8 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2453 EP 2457 DI 10.1063/1.1541108 PG 5 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000020 ER PT J AU Nelson, AJ Reynolds, JG Christou, G AF Nelson, AJ Reynolds, JG Christou, G TI Spin-state effects on the outer core-level multiplet structures for high-spin Mn molecular clusters SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MANGANESE COMPLEXES; TETRANUCLEAR; MAGNETS; WATER AB Oxo-bridged manganese polynuclear complexes have applications in a variety of technologies, such as single-molecule nanomagnets, catalysis, and photosynthetic redox chemistry. X-ray photoemission spectroscopy was used to study the Mn 3p, 3s, and valence hand electronic behavior as a function of Mn cluster structural properties, where the cluster size and, nuclearity are systematically varied. Results show a chemical shift of the Mn 3P(3/2,1/2) spin-orbit pair related to the cluster size and nuclearity. In addition, the Mn 3s S-7 and S-5. final state multiplet components shift since they involve the binding energy of a ligand valence electron. In addition, the branching ratio of the S-7:S-5 states is related to the 3s-3d electron correlation. Specifically, in the S-7 state, the remaining 3s electron is well correlated with 3d electrons of parallel spin, while in the S-5 state, the two spins are antiparallel. Changes in this electron correlation are clearly observed in the S-7:S-5 branching ratio as a function of cluster size and ligand electronegativity. (C) 2003 American Institute. of Physics. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Univ Florida, Dept Chem, Gainesville, FL 32611 USA. RP Nelson, AJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RI Christou, George /A-3072-2014 NR 15 TC 8 Z9 8 U1 0 U2 10 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2536 EP 2539 DI 10.1063/1.1540737 PG 4 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000032 ER PT J AU Myers, SM Wright, AF AF Myers, SM Wright, AF TI Trapping with anisotropic diffusion in an applied field: H+ in Mg-doped GaN SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID ELECTRON-GAS; HYDROGEN; DYNAMICS; POINTS; STATE AB The anisotropy of H+ diffusion in wurtzite GAN is treated using the density-functional theory, and the effects of this anisotropy on trapping by charged and neutral sinks are examined through a numerical solution of the time-dependent diffusion problem. The results clarify recent findings from modeling of experimentally observed H+ drift in reverse-biased GAN p-n junctions, where the fitted effective capture radius for trapping of H+ by Mg- was much larger than expected for isotropic diffusion. More generally, diffusion anisotropy is found to introduce qualitative changes in the solution of the classic Onsager problem of trapping by electrostatic attraction in the presence of an externally applied electric field. (C) 2003 American Institute of Physics. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Myers, SM (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM smmyers@sandia.gov NR 23 TC 9 Z9 9 U1 1 U2 2 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 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2608 EP 2617 DI 10.1063/1.1554076 PG 10 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000045 ER PT J AU Shan, W Walukiewicz, W Wu, J Yu, KM Ager, JW Li, SX Haller, EE Geisz, JF Friedman, DJ Kurtz, SR AF Shan, W Walukiewicz, W Wu, J Yu, KM Ager, JW Li, SX Haller, EE Geisz, JF Friedman, DJ Kurtz, SR TI Band-gap bowing effects in BxGa1-xAs alloys SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID GAINNAS ALLOYS; NITROGEN; GAAS AB Photomodulation spectroscopy studies of the transitions at the Gamma point of the Brillouin zone of thin film of BxGa1-xAs alloys grown by metal-organic chemical-vapor deposition are presented. A very small increase of the fundamental band gap is found in samples with B content up to 3%. Under hydrostatic pressure, the band gap increases at a rate almost identical to the pressure dependence of the GaAs band gap. In contrast to the case of N incorporation at similar concentrations into GaAs, the experimental results show that B incorporation does not cause large modifications of the conduction-band structure in BxGa1-xAs alloys. (C) 2003 American Institute of Physics. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Mat Sci & Mineral Engn, Berkeley, CA 94720 USA. Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA. EM WShan@lbl.gov RI Wu, Junqiao/G-7840-2011; Yu, Kin Man/J-1399-2012; OI Wu, Junqiao/0000-0002-1498-0148; Yu, Kin Man/0000-0003-1350-9642; Ager, Joel/0000-0001-9334-9751 NR 21 TC 25 Z9 27 U1 0 U2 0 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 MAR 1 PY 2003 VL 93 IS 5 BP 2696 EP 2699 DI 10.1063/1.1540230 PG 4 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000059 ER PT J AU McDonald, K Weller, RA Pantelides, ST Feldman, LC Chung, GY Tin, CC Williams, JR AF McDonald, K Weller, RA Pantelides, ST Feldman, LC Chung, GY Tin, CC Williams, JR TI Characterization and modeling of the nitrogen passivation of interface traps in SiO(2)/4H-SiC SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID SILICON-CARBIDE; BAND-EDGES; NITRIC-OXIDE; OXIDATION; PERFORMANCE; POLYTYPE; MOSFETS; ANNEALS; DENSITY; STATES AB The relationship between nitrogen content and interface trap density (D(it)) in SiO(2)/4H-SiC near the conduction band has been quantitatively determined. Nitridation using NO significantly reduces D(it) near the conduction band, but the effect saturates after approximate to2.5x10(14) cm(-2) of nitrogen. These results are consistent with a model of the interface in which defects such as carbon clusters or silicon suboxide states produce traps with energies corresponding to the sizes of the defects. Nitrogen passivation results in the dissolution of the defects, which then lowers the energies of the traps in the band gap. (C) 2003 American Institute of Physics. C1 Vanderbilt Univ, Nashville, TN 37235 USA. Auburn Univ, Dept Phys, Auburn, AL 36849 USA. RP McDonald, K (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM jkmcdon@sandia.gov RI Tin, Chin-Che/A-9122-2012 NR 23 TC 72 Z9 73 U1 1 U2 18 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2719 EP 2722 DI 10.1063/1.1542935 PG 4 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000063 ER PT J AU Choosuwan, H Guo, R Bhalla, AS Balachandran, U AF Choosuwan, H Guo, R Bhalla, AS Balachandran, U TI Low-temperature dielectric behavior of Nb2O5-SiO2 solid solutions SO JOURNAL OF APPLIED PHYSICS LA English DT Article AB Dielectric properties of Nb2O5(0.92):SiO2(0-08) ceramic were measured in the temperature range of 10-300 K by the cryostat system. Frequency-dependent dielectric loss suggests the relaxation behavior of this material. The relaxation mechanism was analyzed by the Arrhenius relationship and the Cole-Cole plot. Calculated distribution of relaxation time reveals deviation from the pure Debye relaxation. (C) 2003 American Institute of Physics. C1 Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA. Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA. RP Choosuwan, H (reprint author), Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA. NR 17 TC 6 Z9 6 U1 0 U2 2 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 MAR 1 PY 2003 VL 93 IS 5 BP 2876 EP 2879 DI 10.1063/1.1545160 PG 4 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000088 ER PT J AU Kucheyev, SO Jagadish, C Williams, JS Deenapanray, PNK Yano, M Koike, K Sasa, S Inoue, M Ogata, K AF Kucheyev, SO Jagadish, C Williams, JS Deenapanray, PNK Yano, M Koike, K Sasa, S Inoue, M Ogata, K TI Implant isolation of ZnO SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID ELECTRICAL ISOLATION; IRRADIATION TEMPERATURE; PROTON-BOMBARDMENT; ION-IMPLANTATION; GAN; GAAS AB We study ion-irradiation-induced electrical isolation in n-type single-crystal ZnO epilayers. Emphasis is given to improving the thermal stability of isolation and obtaining a better understanding of the isolation mechanism. Results show that an increase in the dose of 2 MeV O-16 ions (up to similar to2 orders of magnitude above the threshold isolation dose) and irradiation temperature (up to 350degreesC) has a relatively minor effect on the thermal stability of electrical isolation, which is limited to temperatures of similar to300-400degreesC. An analysis of the temperature dependence of sheet resistance suggests that effective levels associated with irradiation-produced defects are rather shallow (<50 meV). For the case of implantation with keV Cr, Fe, or Ni ions, the evolution of sheet resistance with annealing temperature is consistent with defect-induced isolation, with a relatively minor effect of Cr, Fe, or Ni impurities on the thermal stability of isolation. Results also reveal a negligible ion-beam flux effect in the case of irradiation with 2 MeV O-16 ions, supporting high diffusivity of ion-beam-generated defects during ion irradiation and a very fast stabilization of collision cascade processes in ZnO. Based on these results, the mechanism for electrical isolation in by ion bombardment is discussed. (C) 2003 American Institute of Physics. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Australian Natl Univ, Res Sch Phys Sci & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia. Osaka Inst Technol, New Mat Res Ctr, Asahi Ku, Osaka 5358585, Japan. Osaka Inst Technol, Bioventure Ctr, Asahi Ku, Osaka 5358585, Japan. RP Kucheyev, SO (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 22 TC 52 Z9 53 U1 1 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 2972 EP 2976 DI 10.1063/1.1542939 PG 5 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000105 ER PT J AU Zhang, W Roy, GG Elmer, JW DebRoy, T AF Zhang, W Roy, GG Elmer, JW DebRoy, T TI Modeling of heat transfer and fluid flow during gas tungsten arc spot welding of low carbon steel SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID TYPE-304 STAINLESS-STEEL; POOL DEVELOPMENT; PHASE-CHANGE; GTA; CONVECTION; METAL; PENETRATION AB The evolution of temperature and velocity fields during gas tungsten arc spot welding of AISI 1005 steel was studied using a transient numerical model. The calculated geometry of the weld-fusion zone and heat affected zone and the weld thermal cycles were in good agreement with the corresponding experimental results. Dimensional analysis was used to understand the importance of heat transfer by,conduction and convection at various stages of the evolution of the weld pool and the role of various, driving forces for convection in the liquid pool. The calculated cooling rates are found to be almost independent of position between the 1073 and 773 K (800 and 500degreesC) temperature range, but vary significantly at the onset of solidification at different portions of the weld pool. During solidification, the mushy zone grew significantly with time until the pure liquid region vanished. The solidification rate of the mushy zone/solid interface was shown to increase while the temperature gradient in the mushy zone at this interface was shown to decrease as solidification of the weld pool progressed. Tracking these solidification parameters with time shows that the weld pool solidifies with decreasing interface stability, i.e., with a higher tendency to form dendrites towards the center of the weld. (C) 2003 American Institute of Physics. C1 Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA. Lawrence Livermore Natl Lab, Dept Chem & Mat Sci, Livermore, CA 94551 USA. RP Zhang, W (reprint author), Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA. EM debroy@psu.edu RI DebRoy, Tarasankar/A-2106-2010; Zhang, Wei/B-9471-2013 NR 24 TC 133 Z9 136 U1 7 U2 68 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 MAR 1 PY 2003 VL 93 IS 5 BP 3022 EP 3033 DI 10.1063/1.1540744 PG 12 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000112 ER PT J AU Neff, S Tauschwitz, A Niemann, C Penache, D Hoffmann, DHH Yu, SS Sharp, WM AF Neff, S Tauschwitz, A Niemann, C Penache, D Hoffmann, DHH Yu, SS Sharp, WM TI Gas density measurements with heavy ion beams SO JOURNAL OF APPLIED PHYSICS LA English DT Article AB High current discharge channels are a promising option for the final stage of beam transport in a heavy ion fusion reactor. The creation and the properties of the channel are studied at the Gesellschaft fuer Schwerionenforschung accelerator facility. This article discusses a diagnostic technique to. determine the neutral gas density channel created by a laser in a, neutral gas. The concept is to measure the spreading of an ion beamlet due to collisional scattering with the gas, and thereby deduce the average line-integrated gas density. The results show a density reduction near the axis, which compares favorably with one-dimensional code calculations. (C) 2003 American Institute of Physics. C1 Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Neff, S (reprint author), Gesell Schwerionenforsch mbH, Planckstr 1, D-64291 Darmstadt, Germany. RI Hoffmann, Dieter H.H./A-5265-2008 NR 12 TC 4 Z9 4 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 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD MAR 1 PY 2003 VL 93 IS 5 BP 3079 EP 3081 DI 10.1063/1.1543652 PG 3 WC Physics, Applied SC Physics GA 651EF UT WOS:000181307000119 ER PT J AU Sentman, DD Wescott, EM Picard, RH Winick, JR Stenbaek-Nielsen, HC Dewan, EM Moudry, DR Sabbas, FTS Heavner, MJ Morrill, J AF Sentman, DD Wescott, EM Picard, RH Winick, JR Stenbaek-Nielsen, HC Dewan, EM Moudry, DR Sabbas, FTS Heavner, MJ Morrill, J TI Simultaneous observations of mesospheric gravity waves and sprites generated by a midwestern thunderstorm SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS LA English DT Article; Proceedings Paper CT Conference on Sprites, Elves and Their Global Activities CY SEP 10, 2002 CL FRANKFURT, GERMANY DE sprites; gravity waves; lightning ID OH NIGHTGLOW; PHOTOMETRIC MEASUREMENTS; VIBRATIONAL POPULATIONS; MSX SATELLITE; RED SPRITES; EMISSIONS; STRATOSPHERE; CONVECTION; IONIZATION; EXCITATION AB The present report investigates using simultaneous observations of coincident gravity waves and sprites to establish an upper limit on sprite-associated thermal energy deposition in the mesosphere. The University of Alaska operated a variety of optical imagers and photometers at two ground sites in support of the NASA Sprites99 balloon campaign. One site was atop a US Forest Service lookout tower on Bear Mt. in the Black Hills, in western South Dakota. On the night of 18 August 1999 we obtained from this site simultaneous images of sprites and OH airglow modulated by gravity waves emanating from a very active sprite producing thunderstorm over Nebraska, to the Southeast of Bear Mt. Using 25 s exposures with a bare CCD camera equipped with a red filter, we were able to coincidentally record both short duration ( < 10 ms) but bright ( > 3 MR) N-2 1PG red emissions from sprites and much weaker (similar to1 kR), but persistent, OH Meinel nightglow emissions. A time lapse movie created from images revealed short period, complete 360degrees concentric wave structures emanating radially outward from a central excitation region directly above the storm. During the initial stages of the storm outwardly expanding waves possessed a period of tau approximate to 10 min and wavelength lambda approximate to 50 km. Over a 1 h interval the waves gradually changed to longer period tau approximate to 11 min and shorter wavelength lambda approximate to 40 km. Over the full 2 It observation time, about two dozen bright sprites generated by the underlying thunderstorm were recorded near the center of the outwardly radiating gravity wave pattern. No distinctive OH brightness signatures uniquely associated with the sprites were detected at the level of 2% of the ambient background brightness, establishing an associated upper limit of approximately DeltaT less than or equal to 0.5 K for a neutral temperature perturbation over the Volume of the sprites. The corresponding total thermal energy deposited by the sprite is bounded by these measurements to be less than similar to1 GJ. This value is well above the total energy deposited into the medium by the sprite, estimated by several independent methods to be on the order of similar to1-10 MJ. (C) 2003 Elsevier Science Ltd. All rights reserved. C1 Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA. USAF, Res Lab, Space Vehicles Directorate, Hanscom AFB, MA USA. Los Alamos Natl Lab, NIS1, Los Alamos, NM 87545 USA. USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA. RP Sentman, DD (reprint author), Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA. RI Sao Sabbas, Fernanda/B-7999-2014 OI Sao Sabbas, Fernanda/0000-0002-4381-7446 NR 57 TC 92 Z9 92 U1 2 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1364-6826 J9 J ATMOS SOL-TERR PHY JI J. Atmos. Sol.-Terr. Phys. PD MAR PY 2003 VL 65 IS 5 BP 537 EP 550 DI 10.1016/S1364-6826(02)00328-0 PG 14 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA 676GU UT WOS:000182743600008 ER PT J AU Bucsela, E Morrill, J Heavner, M Siefring, C Berg, S Hampton, D Moudry, D Wescott, E Sentman, D AF Bucsela, E Morrill, J Heavner, M Siefring, C Berg, S Hampton, D Moudry, D Wescott, E Sentman, D TI N-2(B-3 Pi(g)) and N-2(+)(A(2) Pi(u)) vibrational distributions observed 2 in sprites SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS LA English DT Article; Proceedings Paper CT Conference on Sprites, Elves and Their Global Activities CY SEP 10, 2002 CL FRANKFURT, GERMANY DE red sprites; ionized N-2; 1PG and Meinel spectra; vibrational distributions ID PHOTOMETRIC MEASUREMENTS; POPULATIONS; IONIZATION; EXCITATION; EMISSIONS; THUNDERSTORMS; DAYGLOW; ELVES; N-2+; N2 AB A pair of spectra taken simultaneously by two different ground-based instruments has been analyzed by our group. As with previous observations, the spectra are composed primarily of the N-2 first positive group (1PG) (B(3)Pi(g) - A(3)Sigma(u)(+)). In a previous study, we compared the N-2(B) vibrational distributions from the spectral analysis with those resulting from a time-dependent kinetic model of N-2 triplet excited state populations. Both spectra reflect emission between 50 and 60 km. The higher-attitude spectrum is primarily 1PG but also shows the presence of features which appear to be N-2(+) Meinel (A(2) Pi(u) - X(2)Sigma(g)(+)). The lower-attitude spectrum shows little or none of the apparent Meinel emission but has an N-2(B) vibrational distribution similar to ones observed in laboratory afterglows. In this paper we discuss the apparent presence of the Meinel emission and present the observed N-2(B) vibrational distributions. (C) 2003 Elsevier Science Ltd. All rights reserved. C1 Goddard Earth Sci & Technol Ctr, Baltimore, MD USA. USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA. Computat Phys Inc, Springfield, VA USA. Ball Aerosp & Technol Corp, Boulder, CO USA. Univ Alaska, Inst Geophys, Fairbanks, AL USA. RP Bucsela, E (reprint author), Goddard Earth Sci & Technol Ctr, Baltimore, MD USA. NR 36 TC 40 Z9 40 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 1364-6826 J9 J ATMOS SOL-TERR PHY JI J. Atmos. Sol.-Terr. Phys. PD MAR PY 2003 VL 65 IS 5 BP 583 EP 590 DI 10.1016/S1364-6826(02)00316-4 PG 8 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA 676GU UT WOS:000182743600013 ER PT J AU Rard, JA Wijesinghe, AM AF Rard, JA Wijesinghe, AM TI Conversion of parameters between different variants of Pitzer's ion-interaction model, both with and without ionic strength dependent higher-order terms SO JOURNAL OF CHEMICAL THERMODYNAMICS LA English DT Article DE Pitzer's model; ion-interaction model; aqueous electrolytes; rubidium sulphate; caesium sulphate; sodium nitrate; calcium nitrate ID CHEMICAL-EQUILIBRIUM MODEL; CONCENTRATED ELECTROLYTE MIXTURES; AQUEOUS CALCIUM-CHLORIDE; THERMODYNAMIC PROPERTIES; ACTIVITY-COEFFICIENTS; NATURAL-WATERS; ISOPIESTIC DETERMINATION; MINERAL SOLUBILITIES; 323.15 K; 298.15 K AB In this article we present a method for converting the parameters between different variants of Pitzer's ion-interaction model for electrolyte solutions. The original version of Pitzer's ion-interaction model contains an ionic-strength dependent virial coefficient for two-ion interactions, but the virial coefficient for three-ion interactions is set to an empirically determined constant value. Extended versions of the ion-interaction model are now in common use, where the virial coefficient for three-ion interactions is also allowed to depend on the ionic strength, and terms for higher-order interactions may also be included. These extended ion-interaction equations may have one or more additional ionic-strength dependent terms, and are particularly useful for representing the thermodynamic activity values of highly soluble electrolytes. However, the parameters of the original Pitzer model are often needed to supplement existing databases based on this model. Analytical equations presented here allow the parameters of these extended ion-interaction models to be directly transformed to the parameters of the original Pitzer model. The parameters of the original Pitzer model derived by this approach are compared against parameter values obtained by directly fitting the parameters to values of the osmotic coefficients calculated using the equations and parameters of the extended Pitzer models, with excellent agreement. This approach is demonstrated by application to Rb2SO4(aq), Cs2SO4(aq), NaNO3(aq), and Ca(NO3)(2)(aq). (C) 2003 Elsevier Science Ltd. All rights reserved. C1 Lawrence Livermore Natl Lab, Energy & Environm Directorate, Livermore, CA 94550 USA. RP Rard, JA (reprint author), Lawrence Livermore Natl Lab, Energy & Environm Directorate, Livermore, CA 94550 USA. EM rard1@llnl.gov NR 38 TC 25 Z9 25 U1 2 U2 13 PU ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD PI LONDON PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND SN 0021-9614 J9 J CHEM THERMODYN JI J. Chem. Thermodyn. PD MAR PY 2003 VL 35 IS 3 BP 439 EP 473 DI 10.1016/S0021-9614(02)00377-4 PG 35 WC Thermodynamics; Chemistry, Physical SC Thermodynamics; Chemistry GA 659ND UT WOS:000181782300006 ER PT J AU Coker, PR Smith, KL Fellows, PF Rybachuck, G Kousoulas, KG Hugh-Jones, ME AF Coker, PR Smith, KL Fellows, PF Rybachuck, G Kousoulas, KG Hugh-Jones, ME TI Bacillus anthracis virulence in guinea pigs vaccinated with anthrax vaccine adsorbed is linked to plasmid quantities and clonality SO JOURNAL OF CLINICAL MICROBIOLOGY LA English DT Article ID TANDEM REPEAT ANALYSIS; REAL-TIME PCR; QUANTITATIVE PCR; ENVIRONMENTAL-SAMPLES; COMPARATIVE EFFICACY; INHALATION ANTHRAX; PROTECTIVE ANTIGEN; RHESUS MACAQUES; MULTIPLE-LOCUS; PATHOGENESIS AB Bacillus anthracis is a bacterial pathogen of great importance, both historically and in the present. This study presents data collected from several investigations and indicates that B. anthracis virulence is associated with the clonality and virulence of plasmids pX01 and pX02. Guinea pigs vaccinated with Anthrax Vaccine Adsorbed were challenged with 20 B. anthracis isolates representative of worldwide genetic diversity. These same isolates were characterized with respect to plasmid copy number by using a novel method of quantitative PCR developed for rapid and efficient detection of B. anthracis from environmental samples. We found that the copy numbers for both pX01 and pX02 differed from those in previously published reports. By combining the data on survival, plasmid copy numbers, and clonality, we developed a model predicting virulence. This model was validated by using a randomly chosen set of 12 additional B. anthracis isolates. Results from this study will be helpful in future efforts to elucidate the basis for variation in the virulence of this important pathogen. C1 Louisiana State Univ, Sch Vet Med, Dept Pathobiol Sci, Baton Rouge, LA 70803 USA. Louisiana State Univ, Sch Vet Med, Div Biotechnol & Mol Med, Baton Rouge, LA 70803 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. USA, Med Res Inst Infect Dis, Bacteriol Div, Ft Detrick, MD 21702 USA. RP Coker, PR (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-452, Livermore, CA 94550 USA. NR 35 TC 42 Z9 46 U1 0 U2 0 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA SN 0095-1137 J9 J CLIN MICROBIOL JI J. Clin. Microbiol. PD MAR PY 2003 VL 41 IS 3 BP 1212 EP 1218 DI 10.1128/JCM.41.3.1212-1218.2003 PG 7 WC Microbiology SC Microbiology GA 656PQ UT WOS:000181616500045 PM 12624053 ER PT J AU Shestakov, AI Cohen, RH Crotinger, JA LoDestro, LL Tarditi, A Xu, XQ AF Shestakov, AI Cohen, RH Crotinger, JA LoDestro, LL Tarditi, A Xu, XQ TI Self-consistent modeling of turbulence and transport SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article ID DRIFT-WAVE TURBULENCE; SIMULATIONS AB We describe an efficient procedure for coupling a turbulent system to a transport equation which evolves the equilibrium fields that drive and are driven by the turbulence. As an example, we apply the procedure to the coupling of turbulence simulations of the two-dimensional Hasegawa-Wakatani equations to a one-dimensional transport equation for the density n. Our coupling scheme uses implicit temporal discretization of the transport equation, rendering it stable for arbitrarily large time steps. This allows the computation of turbulence with self-consistent steady-state equilibrium profiles in a single time step of the transport equations and with a total computational time comparable to that required for the turbulence code alone to reach a statistical steady state with fixed equilibrium profiles. Results are presented for both local and non-local turbulence simulations. In the former, which requires running a separate turbulence simulation for each transport grid cell, the transport flux F(x) depends on only local values of n(x) and n'(x); for this case, F is expressed using Fick's law, F = -Dn', with D > 0 prescribed by the turbulence. In the non-local simulations, F(x) depends on the form of n over the entire domain. For such simulations we present two methods for representing F that allow for anomalous flux transport, i.e., regions where the flux flows up the local gradient of n. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP LoDestro, LL (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 20 TC 6 Z9 6 U1 1 U2 4 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 MAR 1 PY 2003 VL 185 IS 2 BP 399 EP 426 DI 10.1016/S0021-9991(02)00063-3 PG 28 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 654YT UT WOS:000181525100004 ER PT J AU Knoll, DA Chacon, L Margolin, LG Mousseau, VA AF Knoll, DA Chacon, L Margolin, LG Mousseau, VA TI On balanced approximations for time integration of multiple time scale systems SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article ID NONEQUILIBRIUM RADIATION DIFFUSION; EQUATIONS; IMPLICIT; ACCURACY; SOLVER; FLOWS AB The effect of various numerical approximations used to solve linear and nonlinear problems with multiple time scales is studied in the framework of modified equation analysis (MEA). First, MEA is used to study the effect of linearization and splitting in a simple nonlinear ordinary differential equation (ODE), and in a linear partial differential equation (PDE). Several time discretizations of the ODE and PDE are considered, and the resulting truncation terms are compared analytically and numerically. It is demonstrated quantitatively that both linearization and splitting can result in accuracy degradation when a computational time step larger than any of the competing (fast) time scales is employed. Many of the issues uncovered on the simple problems are shown to persist in more realistic applications. Specifically, several differencing schemes using linearization and/or time splitting are applied to problems in nonequilibrium radiation-diffusion, magnetohydrodynamics, and shallow water flow, and their solutions are compared to those using balanced time integration methods. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. Los Alamos Natl Lab, Div Appl Phys, Los Alamos, NM 87545 USA. RP Knoll, DA (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM nol@lanl.gov NR 34 TC 64 Z9 66 U1 1 U2 9 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD MAR 1 PY 2003 VL 185 IS 2 BP 583 EP 611 DI 10.1016/S0021-9991(03)00008-1 PG 29 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA 654YT UT WOS:000181525100013 ER PT J AU Wang, C Zhang, H Wang, TH Ciszek, TF AF Wang, C Zhang, H Wang, TH Ciszek, TF TI A continuous Czochralski silicon crystal growth system SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 14th American Conference on Crystal Growth and Epitaxy CY AUG 04-09, 2002 CL SEATTLE, WASHINGTON SP Amer Assoc Crystal Growth, Amer Chem Soc, Journal Crystal Growth & Design, Coherent Crystal Associates, Crystal Syst Inc, Engelhard Clal LP, Eichem Inc, Haraus, Mat Technol Div, Johnson Matthey Corp, Thermal Technol Inc, Toyo Tanso USA Inc, Vesuvius McDanel, Zicar Ceramics Inc, Shopley Metalorgan, Pillar Ind, Rath Performance Fibers DE computer simulation; Czochralski method; growth from melt; industrial crystallization; single crystal growth; semiconducting silicon ID SIMULATION; DIAMETER; FURNACE; FLOW AB Demand for large silicon wafers has driven the growth of silicon crystals from 200 to 300 mm in diameter. With the increasing silicon ingot sizes, melt volume has grown dramatically. Melt flow becomes more turbulent as melt height and volume increase. To suppress turbulent flow in a large silicon melt, a new Czochralski (CZ) growth furnace has been designed that has a shallow melt. In this new design, a crucible consists of a shallow growth compartment in the center and a deep feeding compartment around the periphery. Two compartments are connected with a narrow annular channel. A long crystal may be continuously grown by feeding silicon pellets into the dedicated feeding compartment. We use our numerical model to simulate temperature distribution and velocity field in a conventional 200-mm CZ crystal growth system and also in the new shallow crucible CZ system. By comparison, advantages and disadvantages of the proposed system are observed, operating conditions are determined, and the new system is improved. (C) 2002 Elsevier Science B.V. All rights reserved. C1 SUNY Stony Brook, Dept Mech Engn, Stony Brook, NY 11794 USA. Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Wang, C (reprint author), SUNY Stony Brook, Dept Mech Engn, Stony Brook, NY 11794 USA. NR 11 TC 14 Z9 14 U1 1 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD MAR PY 2003 VL 250 IS 1-2 BP 209 EP 214 DI 10.1016/S0022-0248(02)02241-8 PG 6 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA 652HE UT WOS:000181373100037 ER PT J AU Vianco, PT Rejent, JA Kilgo, AC AF Vianco, PT Rejent, JA Kilgo, AC TI Time-independent mechanical and physical properties of the ternary 95.5Sn-3.9Ag-0.6Cu solder SO JOURNAL OF ELECTRONIC MATERIALS LA English DT Article DE rin-silver-copper (Sn-Ag-Cu) solder; thermal-mechanical fatigue; modeling; constitutive equation; yield stress; elastic modulus; thermal expansion AB The development of a constitutive model for predicting the thermal-mechanical fatigue (TMF) of 95.5Sn-3.9Ag-0.6Cu (wt.%) Pb-free solder interconnects requires the measurement of time-independent mechanical and physical properties. Yield stress was measured over the temperature range of -25-160degreesC using strain rates of 4.2 x 10(-5) s(-1) and 8.3 x 10(-4) s(-1). The yield-stress values ranged from approximately 40 MPa at -25degreesC to 10 MPa at, 160degreesC for tests performed at 4.2 x 10(-5) s(-1). The faster strain rate and specimen aging had a limited impact on the yield stress. The true stress/true strain curves indicated that dynamic-recovery and dynamic-recrystallization processes took place in as-east samples exposed to temperatures of 125degreesC and 160degreesC, respectively, while tested at a strain rate of 4.2 x 10-5 s(-1). Aging the sample prior to testing, as well as a faster strain rate, mitigated both phenomena. Dynamic Young's modulus values ranged from 55 GPa at -50degreesC to 35 GPa at 200degreesC, while the coefficient of thermal expansion (CTE) increased from approximately 12 x 10(-6o)C(-1) to 24 x 10(-6o)C(-1) for the same temperature range. The aging treatment had little effect on either Young's modulus or the CTE. C1 Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Vianco, PT (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. NR 9 TC 45 Z9 45 U1 0 U2 3 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 184 THORN HILL RD, WARRENDALE, PA 15086 USA SN 0361-5235 J9 J ELECTRON MATER JI J. Electron. Mater. PD MAR PY 2003 VL 32 IS 3 BP 142 EP 151 DI 10.1007/s11664-003-0185-0 PG 10 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied SC Engineering; Materials Science; Physics GA 653BV UT WOS:000181416100006 ER PT J AU Park, JE Jasiuk, I Zubelewicz, A AF Park, JE Jasiuk, I Zubelewicz, A TI Stresses and fracture at the chip/underfill interface in flip-chip assemblies SO JOURNAL OF ELECTRONIC PACKAGING LA English DT Article ID THERMAL-STRESSES; INHOMOGENEOUS MATERIALS; ELASTIC ENERGY; UNDERFILL; EXTENSION; BEHAVIOR AB We study stresses and fracture due to temperature change in a flip-chip assembly at the chip/underfill interface for various thermo-mechanical properties of underfill and the device's geometry. We conduct our calculations numerically using a finite element method, and employ the J-integral approach and calculate the stress intensity factors for fracture analysis. We assume that all materials are linear elastic and isotropic, and properties are temperature independent. We use several simplified models of flip-chip devices, while neglecting C4 solder interconnects. We represent the devices as either bi-material strips or as three different types of a three-layer model. C1 Lockheed Martin Aeronaut Co, Marietta, GA 30063 USA. Georgia Inst Technol, GWW Sch Mech Engn, Atlanta, GA 30332 USA. Los Alamos Natl Lab, Struct Property Relat Grp, Los Alamos, NM 87545 USA. RP Park, JE (reprint author), Lockheed Martin Aeronaut Co, Marietta, GA 30063 USA. RI Jasiuk, Iwona/A-7796-2014 OI Jasiuk, Iwona/0000-0001-9663-4734 NR 64 TC 2 Z9 2 U1 0 U2 2 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 1043-7398 J9 J ELECTRON PACKAGING JI J. Electron. Packag. PD MAR PY 2003 VL 125 IS 1 BP 44 EP 52 DI 10.1115/1.1527656 PG 9 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA 660ZR UT WOS:000181866500007 ER PT J AU Knox, AS Kaplan, DI Adriano, DC Hinton, TG Wilson, MD AF Knox, AS Kaplan, DI Adriano, DC Hinton, TG Wilson, MD TI Apatite and phillipsite as sequestering agents for metals and radionuclides SO JOURNAL OF ENVIRONMENTAL QUALITY LA English DT Article ID INORGANIC CATION-EXCHANGERS; CONTAMINATED SOILS; LEAD IMMOBILIZATION; SYNTHETIC HYDROXYAPATITES; AQUEOUS-SOLUTIONS; PLANT UPTAKE; ZINC; CADMIUM; PB; CHLOROPYROMORPHITE AB Laboratory and greenhouse studies were conducted to quantify apatite and phillipsite (zeolite) sequestration of selected metal contaminants.-The laboratory batch study measured the sorption of aqueous Co2+, Ba2+, Ph2+, Eu3+, and UO22+. Apatite sorbed more Co2+, Ph2+, Eu3+, and UO22+ from the spike solution than phillipsite, resulting in distribution coefficients (K-d values) of >200 000 L kg(-1). Phillipsite was more effective than apatite at sorbing aqueous Ba2+. Results from the laboratory study Were used to design the greenhouse study that used a soil affected by a Zn-Pb-smelter from Pribram, Czech Republic. Two application rates (25 and 50 g, kg(-1)) of phillipsite and apatite and two plant species, maize (Zea mays L.) and oat (Avena sativa L.), were evaluated in this study. There was little (maize) to no (oat) plant growth in the unamended contaminated soil. Apatite and, to a slightly lesser extent, phillipsite additions significantly enhanced plant growth and reduced Cd, Ph, and Zn concentration in all analyzed tissues (grain, leaves, and roots). The sequestering agents also affected some essential elements (Ca, Fe, and Mg). Phillipsite reduced Fe and apatite reduced P and Fe concentrations in oat tissues; however, the level of these elements in oat leaves and grains remained sufficient. Sequential extractions of the soil indicated that the Cd, Ph, and Zn were much more strongly sorbed onto the amended soil, making the contaminants less phytoavailable. C1 Westinghouse Savannah River Co, Aiken, SC 29808 USA. Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Knox, AS (reprint author), Westinghouse Savannah River Co, Aiken, SC 29808 USA. OI Wilson, Machelle/0000-0003-1734-2755 NR 52 TC 36 Z9 41 U1 0 U2 9 PU AMER SOC AGRONOMY PI MADISON PA 677 S SEGOE RD, MADISON, WI 53711 USA SN 0047-2425 J9 J ENVIRON QUAL JI J. Environ. Qual. PD MAR-APR PY 2003 VL 32 IS 2 BP 515 EP 525 PG 11 WC Environmental Sciences SC Environmental Sciences & Ecology GA 656QK UT WOS:000181618300016 PM 12708675 ER PT J AU Jackson, BP Bertsch, PM Cabrera, ML Camberato, JJ Seaman, JC Wood, CW AF Jackson, BP Bertsch, PM Cabrera, ML Camberato, JJ Seaman, JC Wood, CW TI Trace element speciation in poultry litter SO JOURNAL OF ENVIRONMENTAL QUALITY LA English DT Article ID LAND APPLICATION; ORGANIC-MATTER; SOIL; COPPER; ZINC; SOLUBILITY; CADMIUM; MANAGEMENT; SLURRY; METALS AB Trace elements are added to poultry, feed for disease prevention and enhanced feed efficiency. High concentrations ire found in poultry litter (PL), which raises concerns regarding trace element loading of soils. Trace metal cation solubility from PL may be enhanced by complexation with dissolved organic carbon (DOC). Mineralization of organo-As compounds may result in more toxic species such as As(III) and As(V). Speciation of these elements in PL leachates should assist in predicting their fate in soil. Elemental concentrations of 40 PL samples from the southeastern USA were determined. Water-soluble extractions (WSE) were fractionated into hydrophobic,,an ionic, and cationic species with solid-phase extraction columns. Arsenic speciation of seven As species, including the main As poultry feed additives, roxarsone (ROX; 3-nitro-4-hydroxyphenylarsonic acid) and prarsanilic acid (p-ASA; 4-aminophenylarsonic acid), was performed by ion chromatography-inductively coupled plasma-mass spectrometry (IC-ICP-MS). Total As-concentrations in the litter varied from 1 to 39 mg kg(-1), averaging 16 mg kg(-1). Mean total Cu, Ni, and Zn concentrations were 479, 11, and 373 mg kg(-1), respectively. Copper and Ni were relatively soluble (49 and 41% respectively) while only 6% of Zn was soluble. Arsenic was highly soluble with an average of 71% WSE. Roxarsone was-the major As species in 50% of PL samples. However, the-presence of As(V) as the major species in 50% of the PL samples indicates that mineralization of ROX had occurred. The high solubility of As from litter and its apparent ready mineralization to inorganic forms coupled-with the large quantity of litter that is annually land-applied in the USA suggests a potential detrimental effect on soil and water quality in the long term. C1 Univ Georgia, Savannah River Ecol Lab, Adv Analyt Ctr Environm Sci, Aiken, SC 29003 USA. Univ Georgia, Dept Crop & Soil Sci, Athens, GA 30602 USA. Clemson Univ, Dept Crop & Soil Environm Sci, Clemson, SC 29634 USA. Auburn Univ, Dept Agron & Soils, Auburn, AL 36849 USA. RP Jackson, BP (reprint author), Univ Georgia, Savannah River Ecol Lab, Adv Analyt Ctr Environm Sci, PO Drawer E, Aiken, SC 29003 USA. NR 30 TC 125 Z9 157 U1 5 U2 57 PU AMER SOC AGRONOMY PI MADISON PA 677 S SEGOE RD, MADISON, WI 53711 USA SN 0047-2425 J9 J ENVIRON QUAL JI J. Environ. Qual. PD MAR-APR PY 2003 VL 32 IS 2 BP 535 EP 540 PG 6 WC Environmental Sciences SC Environmental Sciences & Ecology GA 656QK UT WOS:000181618300018 PM 12708677 ER PT J AU Tokunaga, TK Wan, JM Hazen, TC Schwartz, E Firestone, MK Sutton, SR Newville, M Olson, KR Lanzirotti, A Rao, W AF Tokunaga, TK Wan, JM Hazen, TC Schwartz, E Firestone, MK Sutton, SR Newville, M Olson, KR Lanzirotti, A Rao, W TI Distribution of chromium contamination and microbial activity in soil aggregates SO JOURNAL OF ENVIRONMENTAL QUALITY LA English DT Article ID HEXAVALENT CHROMIUM; REDUCTION; MICROORGANISMS; DIFFUSION; DENITRIFICATION; DIVERSITY; SEDIMENTS; GRADIENTS; BIOFILMS; CHROMATE AB Biogeochemical transformations of redox-sensitive chemicals in soils can be strongly transport-controlled and localized. This was tested through experiments on chromium diffusion and reduction in soil aggregates that were exposed to chromate solutions. Reduction of soluble Cr(VI) to insoluble Cr(III) occurred only within the surface layer of aggregates with higher available organic carbon and higher microbial respiration. Sharply terminated Cr diffusion fronts develop when the reduction rate increases rapidly with depth. The final state of such aggregates consists of a Cr-contaminated exterior, and an uncontaminated core, each having different microbial community compositions and activity. Microbial activity was significantly higher in the more reducing soils, while total microbial biomass was similar in all of the soils. The small fraction of Cr(VI) remaining unreduced resides along external surfaces of aggregates, leaving it potentially available to future transport down the soil profile. Using the Thiele modulus, Cr(VI) reduction in soil aggregates is shown to be diffusion rate- and reaction rate-limited in anaerobic and aerobic aggregates, respectively. Thus, spatially resolved chemical and microbiological measurements are necessary within anaerobic soil aggregates to characterize and predict the fate of Cr contamination. Typical methods of soil sampling and analyses that average over redox gradients within aggregates can erase important biogeochemical spatial relations necessary for understanding these environments. C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. Univ Calif Berkeley, Berkeley, CA 94720 USA. Univ Chicago, Chicago, IL 60637 USA. Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Tokunaga, TK (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Tokunaga, Tetsu/H-2790-2014; Wan, Jiamin/H-6656-2014; Hazen, Terry/C-1076-2012 OI Tokunaga, Tetsu/0000-0003-0861-6128; Hazen, Terry/0000-0002-2536-9993 NR 41 TC 31 Z9 37 U1 3 U2 24 PU AMER SOC AGRONOMY PI MADISON PA 677 S SEGOE RD, MADISON, WI 53711 USA SN 0047-2425 J9 J ENVIRON QUAL JI J. Environ. Qual. PD MAR-APR PY 2003 VL 32 IS 2 BP 541 EP 549 PG 9 WC Environmental Sciences SC Environmental Sciences & Ecology GA 656QK UT WOS:000181618300019 PM 12708678 ER PT J AU Wagner, SE Peryea, FJ Filby, RA AF Wagner, SE Peryea, FJ Filby, RA TI Antimony impurity in lead arsenate insecticide enhances the antimony content of old orchard soils SO JOURNAL OF ENVIRONMENTAL QUALITY LA English DT Article ID CONTAMINATED GRASSLAND AB Lead arsenate was a commonly used insecticide during the first half of the 20th century, particularly in deciduous tree fruit orchards. Antimony is cotransported with As during the ore refining process and could occur as an impurity in commercial lead arsenate products. The total concentrations of As and Sb in eight soil samples collected from eight orchards located throughout central Washington State were analyzed by neutron activation analysis. Total soil Sb concentrations ranged between 0.4 and 1.5 mg kg(-1), while total soil As concentration ranged from I to 170 mg kg(-1). Total soil Sb and As concentrations were positively related. Total Ph and As concentrations in four of the soils were substantially higher than natural background, while the Sb to As concentration ratios in these soils were consistent with values measured in three lead arsenate insecticide products. These results confirm that Sb impurity is present in lead arsenate insecticide and has contributed to Sb enrichment of soils on which lead arsenate-treated plants were grown. Although higher than in uncontaminated soils from the same region, the Sb concentrations in the affected soils fall within the normal range observed worldwide and are substantially lower than values associated with impaired human or environmental health. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Washington State Univ, Ctr Tree Fruit Res & Extens, Wenatchee, WA 98801 USA. Washington State Univ, Pullman, WA 99164 USA. RP Peryea, FJ (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 24 TC 8 Z9 8 U1 0 U2 4 PU AMER SOC AGRONOMY PI MADISON PA 677 S SEGOE RD, MADISON, WI 53711 USA SN 0047-2425 J9 J ENVIRON QUAL JI J. Environ. Qual. PD MAR-APR PY 2003 VL 32 IS 2 BP 736 EP 738 PG 3 WC Environmental Sciences SC Environmental Sciences & Ecology GA 656QK UT WOS:000181618300040 PM 12708699 ER PT J AU Gaines, KF Cumbee, JC Stephens, WL AF Gaines, KF Cumbee, JC Stephens, WL TI Nest characteristics of the Clapper Rail in coastal Georgia SO JOURNAL OF FIELD ORNITHOLOGY LA English DT Article DE Georgia; Rallus longirostris; Spartina alterniflora; tidal-creek; tidal-pool ID CALIFORNIA; EGGS AB The nesting habitat of the Clapper Rail (Rallus longirostris) is not well studied in the southeastern United States. We documented Clapper Rail nest characteristics and surrounding habitats near Brunswick on the Georgia coast. Of 159 nests found, only 29 were active. Although some nests may have been abandoned or never used, many could have been depreciated. Nests were constructed farther away from tidal influences than in those populations studied in the mid-Atlantic region of the United States. Clapper Rails also tended to nest near tidal pools as frequently as tidal creeks, contrasting with other Atlantic coast studies. The greater tidal amplitude of Brunswick as compared to the mid-Atlantic coast may explain this finding. Tidal-creek nests were found farther away from, and were associated with taller vegetation near the banks of, a water source than tidal-pool nests. While nest placement differed based on habitat characteristics in this study, nest-structure morphometrics were similar between tidal-creek and tidal-pool habitats and were consistent with those found in other regions of the country. C1 Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. RP Gaines, KF (reprint author), Univ Georgia, Savannah River Ecol Lab, PO Drawer E, Aiken, SC 29802 USA. NR 22 TC 13 Z9 14 U1 3 U2 9 PU ASSOC FIELD ORNITHOLOGISTS PI STATESBORO PA GEORGIA SOUTHERN UNIV, DEPT BIOLOGY, STATESBORO, GA 30460-8042 USA SN 0273-8570 J9 J FIELD ORNITHOL JI J. Field Ornithol. PD SPR PY 2003 VL 74 IS 2 BP 152 EP 156 PG 5 WC Ornithology SC Zoology GA 668QD UT WOS:000182303900007 ER PT J AU Kilani, MI Galambos, PC Haik, YS Chen, CJ AF Kilani, MI Galambos, PC Haik, YS Chen, CJ TI Design and analysis of a surface micrornachined spiral-channel viscous pump SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME LA English DT Article AB A new viscous spiral micropump which uses the surface micromachining technology is introduced. The paper outlines the design of a spiral pump fabricated in five levels of polysilicon using Sandia's Uttraplanar Multilevel MEMS Technology (SUMMiT), and presents an analytical solution of the flow field in its spiral channel. The pump characteristics are obtained experimentally for a scaled-up prototype and are found to be in good agreement with the results obtained using the analytical model. C1 Florida State Univ, Dept Mech Engn, Tallahassee, FL 32310 USA. Sandia Natl Labs, Intelligent Micromachine Dept, Albuquerque, NM 87185 USA. RP Kilani, MI (reprint author), Univ Jordan, Dept Mech Engn, Amman, Jordan. NR 7 TC 18 Z9 19 U1 0 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA SN 0098-2202 J9 J FLUID ENG-T ASME JI J. Fluids Eng.-Trans. ASME PD MAR PY 2003 VL 125 IS 2 BP 339 EP 344 DI 10.1115/1.1524582 PG 6 WC Engineering, Mechanical SC Engineering GA 666WX UT WOS:000182200400014 ER PT J AU Huang, Y Cavinato, AG Mayes, DM Kangas, LJ Bledsoe, GE Rasco, BA AF Huang, Y Cavinato, AG Mayes, DM Kangas, LJ Bledsoe, GE Rasco, BA TI Nondestructive determination of moisture and sodium chloride in cured Atlantic salmon (Salmo salar) (Teijin) using short-wavelength near-infrared spectroscopy (SW-NIR) SO JOURNAL OF FOOD SCIENCE LA English DT Article DE near-infrared (NIR); partial least square regression; artificial neural networks; cured salmon; nondestructive analysis ID LEAST-SQUARES REGRESSION; HYDROGEN BOND SYSTEMS; OH BAND INTENSITIES; TEMPERATURE DEPENDENCE; DIFFUSE SPECTROSCOPY; FREQUENCY SHIFTS; FAT; PROTEIN; REGION; MUSCLE AB Moisture (49.70 to 74.20% w/w) and salt (0.13 to 12.30% w/w) concentrations in cured Atlantic salmon (Salmo salar) or teijin were determined by short-wavelength near-infrared (SW-NIR) reflectance spectroscopy (600 to 1100 nm) using partial least square regression (PLS) and artificial neural networks (ANN) calibration methods. ANN and PLS yielded similar results (Salt: ANN RMS = 1.43% w/w, PLS RMS = 1.37% w/w; Water, ANN RMS = 2.08% w/w, PLS RMS = 2.04% w/w). Sampling the dorsal or ventral portion of the fish did not appear to affect the prediction error of the salt or moisture models. C1 Washington State Univ, Dept Food Sci & Human Nutr, Pullman, WA 99164 USA. Eastern Oregon Univ, Chem Program, La Grande, OR 97850 USA. DSquared Dev Inc, La Grande, OR 97850 USA. Battelle Mem Inst, Pacific NW Natl Lab, Richland, WA 99352 USA. Washington State Univ, Dept Biol Syst Engn, Pullman, WA 99164 USA. RP Rasco, BA (reprint author), Washington State Univ, Dept Food Sci & Human Nutr, Box 646376, Pullman, WA 99164 USA. NR 28 TC 22 Z9 22 U1 1 U2 8 PU INST FOOD TECHNOLOGISTS PI CHICAGO PA 525 WEST VAN BUREN, STE 1000, CHICAGO, IL 60607-3814 USA SN 0022-1147 J9 J FOOD SCI JI J. Food Sci. PD MAR PY 2003 VL 68 IS 2 BP 482 EP 486 DI 10.1111/j.1365-2621.2003.tb05698.x PG 5 WC Food Science & Technology SC Food Science & Technology GA 714JN UT WOS:000184910300012 ER PT J AU Eidhin, DN Burke, J Lynch, B O'Beirne, D AF Eidhin, DN Burke, J Lynch, B O'Beirne, D TI Effects of dietary supplementation with camelina oil on porcine bloods lipids SO JOURNAL OF FOOD SCIENCE LA English DT Article DE camelina oil; omega 3 fatty acids; fish oil; pigs; plasma fatty acids ID ALPHA-LINOLENIC ACID; N-3 FATTY-ACIDS; CORONARY HEART-DISEASE; HEALTHY-YOUNG MEN; COD-LIVER OIL; PLASMA-LIPIDS; FISH-OIL; EICOSAPENTAENOIC ACID; SERUM-LIPIDS; PLATELET-AGGREGATION AB The effects of dietary supplementation with camelina oil on, porcine plasma fatty acid composition and on serum cholesterol/triglyceride concentrations were investigated and compared with the effects of fish oil. The diets consisted of a control diet and diets supplemented with 5% camelina off, 10% camelina oil and 5% fish oil. The camelina and fish-oil diets increased plasma omega3 fatty acids and reduced plasma omega6 fatty acids. Plasma eicosapentaenoic acid (C20:5omega3, EPA) was increased more by the fish oils diet than the camelina-oil diets. Serum triglyceride levels were reduced by the camelina-oil diets. C1 Univ Limerick, Dept Life Sci, Food Sci Res Ctr, Limerick, Ireland. TEAGASC, Oak Pk Res Ctr, Carlow, Ireland. TEAGASC, Pig Husb Dept, Moorepk Res Ctr, Fermoy, Cork, Ireland. RP O'Beirne, D (reprint author), Univ Limerick, Dept Life Sci, Food Sci Res Ctr, Limerick, Ireland. NR 71 TC 15 Z9 18 U1 2 U2 8 PU INST FOOD TECHNOLOGISTS PI CHICAGO PA 525 WEST VAN BUREN, STE 1000, CHICAGO, IL 60607-3814 USA SN 0022-1147 J9 J FOOD SCI JI J. Food Sci. PD MAR PY 2003 VL 68 IS 2 BP 671 EP 679 DI 10.1111/j.1365-2621.2003.tb05730.x PG 9 WC Food Science & Technology SC Food Science & Technology GA 714JN UT WOS:000184910300044 ER PT J AU Gunter, LE Roberts, GT Lee, K Larimer, FW Tuskan, GA AF Gunter, LE Roberts, GT Lee, K Larimer, FW Tuskan, GA TI The development of two flanking SCAR markers linked to a sex determination locus in Salix viminalis L. SO JOURNAL OF HEREDITY LA English DT Article ID PLANTS; DIFFERENTIATION; MERCURIALIS; EXPRESSION; GENETICS; GROWTH; GENES AB Most studies of sex determination systems in plants involve dioecious annuals that have known sex chromosomes. Despite the absence of such structures in the majority of dioecious plants, gender seems to be under relatively strict genetic control in some species. Genetic markers linked to a female sex-determination locus in Salix viminalis L. have been discovered through bulked segregant analysis of three full-sib families using approximately 1,000 arbitrary primers. Two RAPD markers that were present in the common female parent as well as in predominantly female progeny of these families were subsequently sequenced and converted to sequence characterized amplified region (SCAR) markers. The two SCAR markers are correlated with gender in the three full-sib families and are present in 96.4% of the female progeny and 2.2% of the males, providing evidence of linkage to a putative female-specific locus associated with gender determination in S. viminalis. Estimates of recombination suggest that the two markers are flanking a putative sex determination locus, SDL-II, in certain families of S. viminalis. C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN USA. RP Gunter, LE (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA. RI Tuskan, Gerald/A-6225-2011; Gunter, Lee/L-3480-2016 OI Tuskan, Gerald/0000-0003-0106-1289; Gunter, Lee/0000-0003-1211-7532 NR 25 TC 37 Z9 47 U1 0 U2 8 PU OXFORD UNIV PRESS INC PI CARY PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA SN 0022-1503 J9 J HERED JI J. Hered. PD MAR PY 2003 VL 94 IS 2 BP 185 EP 189 DI 10.1093/jhered/esg023 PG 5 WC Evolutionary Biology; Genetics & Heredity SC Evolutionary Biology; Genetics & Heredity GA 674GE UT WOS:000182628400011 PM 12721232 ER PT J AU Ganser, LR Hopkins, WA O'Neil, L Hasse, S Roe, JH Sever, DM AF Ganser, LR Hopkins, WA O'Neil, L Hasse, S Roe, JH Sever, DM TI Liver histopathology of the southern watersnake, Nerodia fasciata fasciata, following chronic exposure to trace element-contaminated prey from a coal ash disposal site SO JOURNAL OF HERPETOLOGY LA English DT Article ID SELENIUM ACCUMULATION; COMBUSTION WASTES AB Previous studies have demonstrated the accumulation of arsenic, cadmium, selenium, strontium, and vanadium in livers of Southern Watersnakes fed fish from a coal-ash contaminated site. Our study is the first to investigate effects of trace element accumulation on cytology of snake liver. Snakes were born in the laboratory and raised for one or two years on diets consisting of varying proportions of contaminated fish. The majority (71%) of snakes fed contaminated prey did not exhibit any differences in liver histology when compared to control snakes fed an uncontaminated diet. In the remaining contaminant-exposed snakes, some aberrations were noted. The most prevalent pathology involved the proliferation of collagen fibers that resulted in narrowing or occlusion of sinusoids and increasing the mass of the intersinsuoidal parenychma. Fibrosis of the liver as a result of chronic injury has been reported previously in reptiles, but this is the first report that links such tissue damage to dietary contamination. C1 St Marys Coll, Dept Biol, Notre Dame, IN 46556 USA. Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA. Univ S Carolina, Dept Biol Sci, Columbia, SC 29208 USA. Indiana Univ, Dept Sci Biol, Ft Wayne, IN 46805 USA. RP Ganser, LR (reprint author), Univ Miami, Dept Biol, 1301 Mem Dr Cox Sci, Coral Gables, FL 33142 USA. NR 14 TC 14 Z9 14 U1 1 U2 19 PU SOC STUDY AMPHIBIANS REPTILES PI ST LOUIS PA C/O ROBERT D ALDRIDGE, ST LOUIS UNIV, DEPT BIOLOGY, 3507 LACLEDE, ST LOUIS, MO 63103 USA SN 0022-1511 J9 J HERPETOL JI J. Herpetol. PD MAR PY 2003 VL 37 IS 1 BP 219 EP 226 DI 10.1670/0022-1511(2003)037[0219:LHOTSW]2.0.CO;2 PG 8 WC Zoology SC Zoology GA 731WX UT WOS:000185910400035 ER PT J AU Alishahiha, M Ganor, OJ AF Alishahiha, M Ganor, OJ TI Twisted backgrounds, PP-waves and nonlocal field theories SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE field theories in higher dimensions; D-branes; Penrose limit and pp-wave background; AdS-CFT and dS-CFT correspondence ID INFINITE-DIMENSIONAL ALGEBRAS; KALUZA-KLEIN THEORY; D-BRANE SOLUTIONS; MATRIX DESCRIPTION; PENROSE LIMITS; ADS SPACE; SUPERGRAVITY; T-5 AB We study partially supersymmetric plane-wave like deformations of string theories and M-theory on brane backgrounds. These deformations are dual to nonlocal field theories. We calculate various expectation values of configurations of closed as well as open Wilson loops and Wilson surfaces in those theories. We also discuss the manifestation of the nonlocality structure in the supergravity backgrounds. A plane-wave like deformation of little string theory has also been studied. C1 Inst Studies Theoret Phys & Math, Tehran, Iran. Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA. RP Inst Studies Theoret Phys & Math, POB 19395-5531, Tehran, Iran. EM alishah@theory.ipm.ac.ir; origa@socrates.berkeley.edu NR 69 TC 43 Z9 43 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD MAR PY 2003 IS 3 AR 006 PG 40 WC Physics, Particles & Fields SC Physics GA 679UA UT WOS:000182939300006 ER PT J AU Evslin, J Varadarajan, U AF Evslin, J Varadarajan, U TI K-theory and S-duality: starting over from square 3 SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE string duality; D-branes; tachyon condensation AB Recently Maldacena, Moore, and Seiberg (MMS) have proposed a physical interpretation of the Atiyah-Hirzebruch spectral sequence, which roughly computes the K-homology groups that classify D-branes. We note that in IIB string theory, this approach can be generalized to include NS charged objects and conjecture an S-duality covariant, nonlinear extension of the spectral sequence. We then compute the contribution of the MMS double-instanton configuration to the derivation d(5) and as an application compute the (p, q)-string spectrum on the group manifold SU(3). We conclude with an M-theoretic generalization reminiscent of 11-dimensional E-8 gauge theory. C1 Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Theoret Phys Grp, Berkeley, CA 94720 USA. RP Evslin, J (reprint author), Univ Calif Berkeley, Dept Math, Berkeley, CA 94720 USA. EM jarah@uclink4.berkeley.edu; udayv@socrates.berkeley.edu NR 24 TC 14 Z9 14 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD MAR PY 2003 IS 3 AR 026 PG 26 WC Physics, Particles & Fields SC Physics GA 679UA UT WOS:000182939300026 ER PT J AU Kachru, S McAllister, L AF Kachru, S McAllister, L TI Bouncing brane cosmologies from warped string compactifications SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE D-branes; cosmology of theories beyond the SM ID MIRAGE COSMOLOGY; GRACEFUL EXIT; FIELD-THEORY; UNIVERSE; SINGULARITY; INFLATION; CONSTANT; MODELS AB We study the cosmology induced on a brane probing a warped throat region in a Calabi-Yau compactification of type-IIB string theory. For the case of a BPS D3-brane probing the Klebanov-Strassler warped deformed conifold, the cosmology described by a suitable brane observer is a bouncing, spatially flat Friedmann-Robertson-Walker universe with time-varying Newton's constant, which passes smoothly from a contracting to an expanding phase. In the Klebanov-Tseytlin approximation to the Klebanov-Strassler solution the cosmology would end with a big crunch singularity. In this sense, the warped deformed conifold provides a string theory resolution of a spacelike singularity in the brane cosmology. The four-dimensional effective action appropriate for a brane observer is a simple scalar-tensor theory of gravity. In this description of the physics, a bounce is possible because the relevant energy-momentum tensor can classically violate the null energy condition. C1 Stanford Univ, Dept Phys, Stanford, CA 94305 USA. Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94305 USA. RP Kachru, S (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA. EM skachru@stanford.edu; lpm@stanford.edu NR 51 TC 37 Z9 37 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD MAR PY 2003 IS 3 AR 018 PG 18 WC Physics, Particles & Fields SC Physics GA 679UA UT WOS:000182939300018 ER PT J AU Kachru, S Schulz, MB Tripathy, PK Trivedi, SP AF Kachru, S Schulz, MB Tripathy, PK Trivedi, SP TI New supersymmetric string compactifications SO JOURNAL OF HIGH ENERGY PHYSICS LA English DT Article DE string duality; superstring vacua ID CALABI-YAU; MIRROR SYMMETRY; T-DUALITY; FLUXES; BREAKING; BRANES; SUPERGRAVITY; SUPERSTRINGS; BACKGROUNDS; DIMENSIONS AB We describe a new class of supersymmetric string compactifications to 4d Minkowski space. These solutions involve type II strings propagating on (orientifolds of) non Calabi-Yau spaces in the presence of background NS and RR fluxes. The simplest examples have descriptions as cosets, generalizing the three-dimensional nilmanifold. They can also be thought of as twisted tori. We derive a formula for the (super) potential governing the light fields, which is generated by the fluxes and certain "twists" in the geometry. Detailed consideration of an example also gives strong evidence that in some cases, these exotic geometries are related by smooth transitions to standard Calabi-Yau or G(2) compactifications of M-theory. C1 Stanford Univ, Dept Phys, Stanford, CA 94305 USA. Stanford Univ, SLAC, Stanford, CA 94305 USA. CALTECH, Pasadena, CA 91125 USA. Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India. RP Kachru, S (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA. EM skachru@stanford.edu; mschulz@theory.caltech.edu; prasanta@theory.tifr.res.in; sandip@tifr.res.in NR 62 TC 188 Z9 188 U1 0 U2 1 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1029-8479 J9 J HIGH ENERGY PHYS JI J. High Energy Phys. PD MAR PY 2003 IS 3 AR 061 PG 36 WC Physics, Particles & Fields SC Physics GA 679UA UT WOS:000182939300061 ER PT J AU De Boer, RJ Mohri, H Ho, DD Perelson, AS AF De Boer, RJ Mohri, H Ho, DD Perelson, AS TI Turnover rates of B cells, T cells, and NK cells in simian immunodeficiency virus-infected and uninfected rhesus macaques SO JOURNAL OF IMMUNOLOGY LA English DT Article ID ACTIVE ANTIRETROVIRAL THERAPY; HIV-1 INFECTION; IMMUNE ACTIVATION; RHEUMATOID-ARTHRITIS; LYMPHOID-TISSUES; RAPID TURNOVER; VIRAL LOAD; LIFE-SPAN; CD4(+); LYMPHOCYTES AB We determined average cellular turnover rates by fitting mathematical models to 5-bromo-2'-deoxyuridine measurements in SIV-infected and uninfected rhesus macaques. The daily turnover rates of CD4(+) T cells, CD4(-) T cells, CD20(+) B cells, and CD16(+) NK cells in normal uninfected rhesus macaques were 1, 1, 2, and 2%, respectively. Daily turnover rates of CD45RA(-) memory T cells were 1%, and those of CD45RA(+) naive T cells were 0.5% for CD4(+) T cells and similar to1% for CD4(-)CD45RA(+) T cells. In SIV-infected monkeys with high viral loads, the turnover rates of T cells were increased similar to2-fold, and that of memory T cells similar to3-fold. The turnover of CD4(+)CD45RA(+) naive T cells was increased 2-fold, whereas that of CD4(-)CD45RA(+) naive T cells was marginally increased. B cells and NK cells also had increased turnover in SIV-infected macaques, averaging 3 and 2.5% per day, respectively. For all cell types studied here the daily turnover rate increased with the decrease of the CD4 count that accompanied SIV infection. As a consequence, the turnover rates of CD4(+) T cells, CD4- T cells, B cells, and NK cells within each monkey are strongly correlated. This suggests that the cellular turnover of different lymphocyte populations is governed by a similar process which one could summarize as "generalized immune activation." Because the viral load and the CD4 T cell count are negatively correlated we cannot determine which of the two plays the most important role in this generalized immune activation. C1 Univ Utrecht, NL-3584 CH Utrecht, Netherlands. Rockefeller Univ, Aaron Diamond AIDS Res Ctr, New York, NY 10016 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP De Boer, RJ (reprint author), Univ Utrecht, Padualaan 8, NL-3584 CH Utrecht, Netherlands. RI De Boer, Rob/B-6050-2011 OI De Boer, Rob/0000-0002-2130-691X FU NCRR NIH HHS [RR06555]; NIAID NIH HHS [AI28433, AI40387] NR 59 TC 73 Z9 74 U1 1 U2 4 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA SN 0022-1767 J9 J IMMUNOL JI J. Immunol. PD MAR 1 PY 2003 VL 170 IS 5 BP 2479 EP 2487 PG 9 WC Immunology SC Immunology GA 648JD UT WOS:000181146800030 PM 12594273 ER PT J AU Nikitenko, VI Gornakov, VS Kabanov, YP Shapiro, AJ Shull, RD Chien, CL Jiang, JS Bader, SD AF Nikitenko, VI Gornakov, VS Kabanov, YP Shapiro, AJ Shull, RD Chien, CL Jiang, JS Bader, SD TI Magneto-optical indicator film study of the hybrid exchange spring formation and evolution processes SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS LA English DT Article; Proceedings Paper CT 2nd Moscow International Symposium on Magnetism (MISM 2001) CY JUN 20-24, 2001 CL MOSCOW STATE UNIV, MOSCOW, RUSSIA HO MOSCOW STATE UNIV DE magnetic bilayers : domain walls; exchange springs; magnetic imaging ID MULTILAYERS; COERCIVITY; ASYMMETRY; BILAYERS; MODEL AB The elementary events of the remagnetization processes in nanocomposite magnetic bilayers were investigated using iron-garnet indicator films with in-plane anisotropy. We have observed hybrid domain walls consisting of both ferromagnetic and antiferromagnetic sections perpendicular to the interface. The external magnetic field shifts only the ferromagnetic part of the domain walls. This leads to the formation of a hybrid exchange spin spring parallel to the interface. The processes of spring nucleation and untwisting occur at different locations. With the field oriented antiparallel to the macroscopic unidirectional anisotropy, remagnetization of the soft ferromagnet layer in the hard/soft nanocomposite starts by the formation of an exchange spring consisting of micrometer-scale sub-domains with opposite direction spin twisting. A rotating magnetic field (smaller than some critical value) creates firstly a single-chiral spin spiral; this spiral then loses stability, incoherently untwists and gradually inverts its chirality with increasing field rotation. Untwisting of the hybrid exchange spring at higher fields leads to the creation of unusual hybrid non-180degrees domain walls. The initial (ground) state of the bilayer with such noncollinear magnetized domains is not restored after stopping the field rotation and returning it to zero. The revealed phenomena are attributed to the influence of the dispersion in the unidirectional anisotropy induced by magnetization frustration in the interface and bilayer crystal lattice defects. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia. Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA. Johns Hopkins Univ, Baltimore, MD 21218 USA. Argonne Natl Lab, Argonne, IL 60439 USA. RP Nikitenko, VI (reprint author), Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia. EM nikiten@issp.ac.ru RI Bader, Samuel/A-2995-2013; Shull, Robert/F-5971-2013 NR 16 TC 7 Z9 7 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-8853 J9 J MAGN MAGN MATER JI J. Magn. Magn. Mater. PD MAR PY 2003 VL 258 SI SI BP 19 EP 24 AR PII S0304-8853(02)00998-8 DI 10.1016/S0304-8853(02)00998-8 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 658BP UT WOS:000181702000006 ER PT J AU Belashchenko, KD Antropov, VP AF Belashchenko, KD Antropov, VP TI Bridging the gap between micromagnetism and ab initio calculations: basic hysteretic properties of CoPt-type magnets SO JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS LA English DT Article; Proceedings Paper CT 2nd Moscow International Symposium on Magnetism (MISM 2001) CY JUN 20-24, 2001 CL MOSCOW STATE UNIV, MOSCOW, RUSSIA HO MOSCOW STATE UNIV DE magnetization reversal; CoPt-type magnets; multiscale modeling ID ALLOYS; KINETICS AB We demonstrate how first-principles, microstructural and microscopic model calculations may be combined to obtain material-specific input for micromagnetic calculations. We elucidate the generic links between microstructural features and coercivity of polytwinned CoPt-type magnets. It is shown with the help of ab initio calculations that domain walls in these alloys are strongly attracted to antiphase boundaries, and, using microscopic simulations, that at twin boundaries they are split in magnetostatically coupled segments. We predict a peculiar mechanism of magnetization reversal via DW splitting in `partial walls'. General features of magnetization reversal are explained and estimates of coercivity given for the strong and weak pinning cases. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Ames Lab, Ames, IA 50011 USA. RP Antropov, VP (reprint author), Ames Lab, Ames, IA 50011 USA. EM antropov@ameslab.gov RI Belashchenko, Kirill/A-9744-2008 OI Belashchenko, Kirill/0000-0002-8518-1490 NR 12 TC 3 Z9 3 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-8853 J9 J MAGN MAGN MATER JI J. Magn. Magn. Mater. PD MAR PY 2003 VL 258 SI SI BP 244 EP 247 AR PII S0304-8853(02)01028-4 DI 10.1016/S0304-8853(02)01028-4 PG 4 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA 658BP UT WOS:000181702000064 ER PT J AU Xu, Y Goyal, A Rutter, NA Shi, D Paranthaman, M Sathyamurthy, S Martin, PM Kroeger, DM AF Xu, Y Goyal, A Rutter, NA Shi, D Paranthaman, M Sathyamurthy, S Martin, PM Kroeger, DM TI Fabrication of high-critical current density YBa2Cu3O7-delta films using a fluorine-free sol gel approach SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID THIN-FILMS AB Superconducting YBa2Cu3O7-delta (YBCO) films with critical transition temperature T-c(0) of 90 K were fabricated via a fluorine-free, metal trimethylacetate based sol-gel route. Precursor films were spin-coated onto single-crystal (001) LaAlO3 (LAO) and (001) SrTiO3 (STO) substrates. Optimization of the burnout process resulted in films with excellent out-of-plane and in-plane texture. Transport critical current densities, J(c), of 1.6 and 1.1 MA/cm(2) were obtained at 77 K in self-field on films grown on LAO and STO substrates, respectively. This is the first demonstration of high-J(c) YBCO film fabrication using a fluorine-free, ex-situ process. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Cincinnati, Dept Mat Sci & Engn, Cincinnati, OH 45221 USA. RP Goyal, A (reprint author), Bethel Valley Rd,POB 2008, Oak Ridge, TN 37831 USA. RI Paranthaman, Mariappan/N-3866-2015 OI Paranthaman, Mariappan/0000-0003-3009-8531 NR 11 TC 25 Z9 25 U1 1 U2 6 PU MATERIALS RESEARCH SOCIETY PI WARRENDALE PA 506 KEYSTONE DR, WARRENDALE, PA 15086 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD MAR PY 2003 VL 18 IS 3 BP 677 EP 681 DI 10.1557/JMR.2003.0090 PG 5 WC Materials Science, Multidisciplinary SC Materials Science GA 652ZR UT WOS:000181411200022 ER PT J AU Lou, J Shrotriya, P Buchheit, T Yang, D Soboyejo, WO AF Lou, J Shrotriya, P Buchheit, T Yang, D Soboyejo, WO TI Nanoindentation study of plasticity length scale effects in LIGA Ni microelectromechanical systems structures SO JOURNAL OF MATERIALS RESEARCH LA English DT Article ID STRAIN GRADIENT PLASTICITY; SENSING INDENTATION EXPERIMENTS; MECHANICAL-PROPERTIES; CONTACT AREA; ELASTIC-MODULUS; HARDNESS; DEPTH; LOAD; MEMS AB This paper presents the results of a nanoindentation study of the effects of strain gradient plasticity on the elastic-plastic deformation of lithographie, galvanoformung, abformung (LIGA) Ni microelectromechanical systems (MEMS) structures plated from sulfamate baths. Both Berkovich and North Star/cube corner indenter tips were used in the study to investigate possible effects of residual indentation depth on the hardness of LIGA Ni MEMS structures between the micro- and nanoscales. A microstructural length scale parameter, l = 2.2 mum, was determined for LIGA nickel films. This is shown to be consistent with a stretch gradient length-scale parameter, l(s), of approximately 0.9 mum. C1 Princeton Univ, Mat Inst, Princeton, NJ 08544 USA. Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA. Sandia Natl Labs, Mech Reliabil & Modeling Dept, Albuquerque, NM 87185 USA. Hysitron Inc, Minneapolis, MN 55439 USA. RP Lou, J (reprint author), Princeton Univ, Mat Inst, Princeton, NJ 08544 USA. RI Shrotriya, Pranav/F-5960-2011 OI Shrotriya, Pranav/0000-0001-9263-4892 NR 34 TC 39 Z9 39 U1 0 U2 4 PU MATERIALS RESEARCH SOCIETY PI WARRENDALE PA 506 KEYSTONE DR, WARRENDALE, PA 15086 USA SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD MAR PY 2003 VL 18 IS 3 BP 719 EP 728 DI 10.1557/JMR.2003.0097 PG 10 WC Materials Science, Multidisciplinary SC Materials Science GA 652ZR UT WOS:000181411200029 ER PT J AU Zhou, CH Beyerlein, IJ Schadler, LS AF Zhou, CH Beyerlein, IJ Schadler, LS TI Time-dependent micromechanical behavior in graphite/epoxy composites under constant load at elevated temperatures SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID EPOXY-RESIN; FIBER; STRENGTH AB Time dependent deformation at the individual fiber level was investigated in graphite fiber/epoxy composites at elevated temperatures using micro Raman spectroscopy (MRS) and a time dependent shear-lag based single fiber composite model (SFM). The modeling parameters were obtained from the creep response of the unfilled epoxy at several stress levels and at temperatures up to 80 degreesC. An effective fiber spacing was used in the model predictions to account for the radial decay of the interfacial shear stress from the fiber surface. Good agreement was observed between the model predictions and MRS data when the temperature dependence of p (the shear stress in the matrix yielded zone) and c (the critical shear strain for the onset of inelasticity) were taken into account. Overall, the inelastic length growing from the fiber fractures increases with temperature and time. This leads to a wider stress concentration profile in the neighboring intact fibers, which increases the chance of failure in the intact fibers and facilitates the creep-rupture process of the composite. (C) 2003 Kluwer Academic Publishers. C1 Rensselaer Polytech Inst, Troy, NY 12180 USA. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Schadler, LS (reprint author), Rensselaer Polytech Inst, Troy, NY 12180 USA. RI Beyerlein, Irene/A-4676-2011 NR 13 TC 4 Z9 4 U1 0 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD MAR 1 PY 2003 VL 38 IS 5 BP 877 EP 884 DI 10.1023/A:1022348419344 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA 645ZW UT WOS:000181011200002 ER PT J AU Dong, JH Payzant, EA Hu, MZC Depaoli, DW Lin, YS AF Dong, JH Payzant, EA Hu, MZC Depaoli, DW Lin, YS TI Synthesis of MFI-type zeolite membranes on porous-alumina supports by wet gel crystallization in the vapor phase SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID TRANSPORT METHOD; COMPOSITE MEMBRANES; SILICALITE-1 MEMBRANES; SEPARATION PROPERTIES; CERAMIC SUPPORTS; ZSM-5 MEMBRANES; PERMEATION; TEMPERATURE; PERFORMANCE; MECHANISM AB A new method has been developed for synthesis of MFI-type zeolite membranes on porous alpha-alumina supports. Using this method, a thin layer of wet-gel precursor precoated from a synthesis sol containing SiO2, tetrapropylammonium hydroxide (TPAOH), NaOH, and H2O was converted to an MFI zeolite film by vapor-phase treatment at elevated temperatures. MFI zeolite films were formed on the alpha-alumina substrates, respectively, in the vapor phases of TPAOH solution and an ethylenediamine(EDA)/triethylamine (TEA)/water mixture, but an amorphous material was obtained in the vapor phase of pure water. Scanning electron microscopy and helium permeation examinations before calcination showed that the MFI membrane obtained in the vapor phase of the TPAOH solution was of higher quality than that synthesized in the vapor phase of the EDA/TEA/water mixture in terms of zeolite film integrity and compactness. It was also found that the existence of the template TPA(+) in the parental synthesis sol was critical to the formation of MFI zeolite under the investigated conditions. When precursor layers coated from a template-free colloidal silica system were used, the vapor-phase treatment resulted in formation of Na-P1 and ANA zeolite films, respectively, in the vapors of TPAOH solution and the EDA/TEA/water mixture. The method developed in this work has the advantages of improved controllability, minimal waste generation, and reduced chemical consumption that are desirable for large-scale production of zeolite membranes. (C 2003 Kluwer Academic Publishers. C1 Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA. Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. Univ Cincinnati, Dept Chem Engn, Cincinnati, OH 45221 USA. RP Hu, MZC (reprint author), Oak Ridge Natl Lab, Div Chem Technol, Oak Ridge, TN 37831 USA. RI Payzant, Edward/B-5449-2009; Lin, Jerry/F-1235-2010 OI Payzant, Edward/0000-0002-3447-2060; Lin, Jerry/0000-0001-5905-8336 NR 42 TC 14 Z9 16 U1 1 U2 28 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD MAR 1 PY 2003 VL 38 IS 5 BP 979 EP 985 DI 10.1023/A:1022381326613 PG 7 WC Materials Science, Multidisciplinary SC Materials Science GA 645ZW UT WOS:000181011200016 ER PT J AU Ames, RL Bluhm, EA Way, JD Bune, AL Abney, KD Schreiber, SB AF Ames, RL Bluhm, EA Way, JD Bune, AL Abney, KD Schreiber, SB TI Physical characterization of 0.5 mu m cut-off sintered stainless steel membranes SO JOURNAL OF MEMBRANE SCIENCE LA English DT Article DE barrier membranes; diffusion; inorganic membranes; metal membranes; microporous and porous membranes ID POROMETRY AB An investigation was conducted to determine the basic physical characteristics of stainless steel membrane material considered for an aqueous waste separation process and concurrently to develop a procedure for future use in characterizing membrane material. The initial choice of sintered 316L stainless steel material was the result of the need for a robust and acid resistant membrane having the potential for aqueous separations capabilities. The membrane material tested had a nominal filtration rating (particle cut-off) of 0.5 mum and a thickness of approximately 0.123 cm. Characterization tests conducted were used to determine the pore size distribution, mean pore diameter, porosity, and tortuosity of the stainless steel membrane material. Results indicated that the average pore diameter was approximately 2.2 mum and the average of the porosity was determined to be 24.9%. The diffusion tortuosity, determined from the measurement of C-14-labeled sucrose diffusion through the stainless steel membrane, was estimated to be approximately 1.3. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. Colorado Sch Mines, Dept Chem Engn, Golden, CO 80401 USA. RP Ames, RL (reprint author), Los Alamos Natl Lab, 2-CINC,Mail Stop E511, Los Alamos, NM 87545 USA. RI Bunge, Annette/A-7995-2012 OI Bunge, Annette/0000-0002-0287-3724 NR 14 TC 11 Z9 12 U1 1 U2 3 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 MAR 1 PY 2003 VL 213 IS 1-2 BP 13 EP 23 AR PII S0376-7388(02)00508-2 DI 10.1016/S0376-7388(02)00508-2 PG 11 WC Engineering, Chemical; Polymer Science SC Engineering; Polymer Science GA 648JM UT WOS:000181147800002 ER PT J AU Chialvo, AA Cummings, PT Simonson, JM AF Chialvo, AA Cummings, PT Simonson, JM TI H3O+/Cl- ion pairing in hydrothermal solutions by simulation and electrical conductance. A review SO JOURNAL OF MOLECULAR LIQUIDS LA English DT Article; Proceedings Paper CT 27th International Conference on Solution Chemistry CY AUG 26-31, 2001 CL VAALS, NETHERLANDS ID CONSTRAINED MOLECULAR-DYNAMICS; SODIUM-CHLORIDE SOLUTIONS; FLOW-THROUGH CELL; HIGH-TEMPERATURES; THERMODYNAMIC PROPERTIES; ELECTROLYTE-SOLUTIONS; CONDUCTIVITY MEASUREMENTS; SUPERCRITICAL WATER; HYDROCHLORIC-ACID; AQUEOUS-SOLUTIONS AB The H3O+...Cl- pair association is studied by molecular simulation and conductance measurements over a wide range of state conditions. The overall ion-pair association constants and equilibrium constants between contact and solvent-shared ion-pair configurations indicate that more than 97% of configurations are contact ion-pairs. The adequacy of some simple, fully-electrostatic models to represent ion-pair association behavior in high temperature aqueous solutions is also discussed. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, High Temp Aqueous Chem Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. Univ Tennessee, Dept Chem Engn, Knoxville, TN 37996 USA. Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Univ Tennessee, Dept Comp Sci, Knoxville, TN 37996 USA. RP Chialvo, AA (reprint author), Oak Ridge Natl Lab, High Temp Aqueous Chem Grp, Div Chem Sci, Oak Ridge, TN 37831 USA. RI Cummings, Peter/B-8762-2013; OI Cummings, Peter/0000-0002-9766-2216; Chialvo, Ariel/0000-0002-6091-4563 NR 52 TC 8 Z9 8 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-7322 J9 J MOL LIQ JI J. Mol. Liq. PD MAR PY 2003 VL 103 SI SI BP 235 EP 248 AR PII S0167-7322(02)00143-5 DI 10.1016/S0167-7322(02)00143-5 PG 14 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA 643RP UT WOS:000180874500021 ER PT J AU Hong-Geller, E Gupta, G AF Hong-Geller, E Gupta, G TI Therapeutic approaches to superantigen-based diseases: a review SO JOURNAL OF MOLECULAR RECOGNITION LA English DT Review DE superantigens; therapeutics; S. aureus; toxic shock ID STAPHYLOCOCCAL-ENTEROTOXIN-B; TOXIC-SHOCK-SYNDROME; T-CELL RECEPTOR; STREPTOCOCCAL PYROGENIC TOXINS; RECOMBINANT EXOPROTEIN-A; INHIBITING PEPTIDE RIP; TUMOR-NECROSIS-FACTOR; COMPLEX CLASS-II; BACTERIAL SUPERANTIGENS; LETHAL SHOCK AB Superantigens secreted by the bacterial pathogen Staphyloccocus aureus are extremely potent toxins that overstimulate the host immune system by binding to the MHC class 11 and T cell receptors and activating a large population of T cells. Superantigen infection has been shown to be the causative agents in acute diseases, food poisoning and toxic shock syndrome, and in more chronic conditions such as inflammatory skin diseases. In addition to the toll on public health, S. aureus superantigens also represent a potential biothreat to our national security. To address these risks, a number of different therapeutic strategies have been developed that target different aspects of the pathogenic mechanism of S. aureus and superantigen infection. These therapies, which encompass strategies as diverse as production of neutralizing antibodies, inhibitory peptide/receptor design and blockage of superantigen gene transcription, are being tested for treatment of established S. aureus infections in pre- and post-exposure scenarios. In this review, we will describe these different strategies and their efficacies in inhibition of superantigen-induced effects in the host, and present the future outlook for successfully producing therapies for superantigen-based disease. Copyright (C) 2003 John Wiley Sons, Ltd. C1 Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA. RP Gupta, G (reprint author), Los Alamos Natl Lab, Biosci Div, HRL-1,MS-M888, Los Alamos, NM 87545 USA. NR 86 TC 16 Z9 19 U1 0 U2 2 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND SN 0952-3499 J9 J MOL RECOGNIT JI J. Mol. Recognit. PD MAR-APR PY 2003 VL 16 IS 2 BP 91 EP 101 DI 10.1002/jmr.612 PG 11 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA 673MC UT WOS:000182583900004 PM 12720278 ER PT J AU Gribbins, KM Gist, DH Congdon, JD AF Gribbins, KM Gist, DH Congdon, JD TI Cytological evaluation of spermatogenesis and organization of the germinal epithelium in the male slider turtle, Trachemys scripta SO JOURNAL OF MORPHOLOGY LA English DT Article DE spermatogenesis; germ cell types; germinal epithelium; turtle ID CHRYSEMYS-PICTA; STORAGE; CYCLE; SPERM AB The germ cell development in the slider turtle (Trachemys scripta) testis was investigated by viewing the histology of the seminiferous epithelium in plastic sections with a light microscope. Germ cell morphologies in the slider turtle testis were similar to the morphologies of other vertebrate germ cell types. However, the slider turtle seminiferous epithelium contained germ cells that progress through spermatogenesis in a temporal rather than a spatial pattern, resulting in a single spermatogenic event that climaxed with one massive sperm release in November. Mature sperm then are stored within the epididymis until breeding commences in the following spring. The germ cell development strategy in the slider turtle is different from that of other amniotes and is more reminiscent of the developmental strategy found in the anamniotic testis. This temporal progression of germ cells through spermatogenesis within a tubular testis represents a transitional model that may be evolutionarily significant. J. Morphol. 255:337-346, 2003. (C) 2003 Wiley-Liss, Inc. C1 Wittenberg Univ, Dept Biol, Springfield, OH 45501 USA. Univ Cincinnati, Dept Biol Sci, Cincinnati, OH 45221 USA. Savannah River Ecol Lab, Aiken, SC 29801 USA. RP Gribbins, KM (reprint author), Wittenberg Univ, Dept Biol, Springfield, OH 45501 USA. NR 29 TC 31 Z9 33 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA SN 0362-2525 J9 J MORPHOL JI J. Morphol. PD MAR PY 2003 VL 255 IS 3 BP 337 EP 346 DI 10.1002/jmor.10069 PG 10 WC Anatomy & Morphology SC Anatomy & Morphology GA 644XA UT WOS:000180944700006 PM 12520551 ER PT J AU Nigg, DW AF Nigg, DW TI Computational dosimetry and treatment planning considerations for neutron capture therapy SO JOURNAL OF NEURO-ONCOLOGY LA English DT Article DE neutron; BNCT; radiotherapy; treatment planning ID DOSE DISTRIBUTION ANALYSIS; TRANSPORT; RADIOTHERAPY; TUMOR AB Specialized treatment planning software systems are generally required for neutron capture therapy ( NCT) research and clinical applications. The standard simplifying approximations that work well for treatment planning computations in the case of many other modalities are usually not appropriate for application to neutron transport. One generally must obtain an explicit three- dimensional numerical solution of the governing transport equation, with energy- dependent neutron scattering completely taken into account. Treatment planning systems that have been successfully introduced for NCT applications over the past 15 years rely on the Monte Carlo stochastic simulation method for the necessary computations, primarily because of the geometric complexity of human anatomy. However, historically, there has also been interest in the application of deterministic methods, and there have been some practical developments in this area. Most recently, interest has turned toward the creation of treatment planning software that is not limited to any specific therapy modality, with NCT as only one of several applications. A key issue with NCT treatment planning has to do with boron quantification, and whether improved information concerning the spatial biodistribution of boron can be effectively used to improve the treatment planning process. Validation and benchmarking of computations for NCT are also of current developmental interest. Various institutions have their own procedures, but standard validation models are not yet in wide use. C1 Idaho Natl Lab, Idaho Falls, ID USA. RP Nigg, DW (reprint author), Idaho Natl Lab, POB 1625,Mail Stop 3890, Idaho Falls, ID 83415 USA. EM dwn@inel.gov NR 36 TC 21 Z9 22 U1 1 U2 5 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0167-594X EI 1573-7373 J9 J NEURO-ONCOL JI J. Neuro-Oncol. PD MAR-APR PY 2003 VL 62 IS 1 BP 75 EP 86 PG 12 WC Oncology; Clinical Neurology SC Oncology; Neurosciences & Neurology GA 664PV UT WOS:000182070200008 PM 12749704 ER PT J AU Silver, RB Kriebel, ME Keller, B Pappas, GD AF Silver, RB Kriebel, ME Keller, B Pappas, GD TI Porocytosis: Secretion from small and medium-diameter vesicles and vesicle arrays without membrane fusion SO JOURNAL OF NEUROCYTOLOGY LA English DT Review ID FROG NEUROMUSCULAR-JUNCTION; CALCIUM-CONCENTRATION MICRODOMAINS; ADRENAL CHROMAFFIN CELLS; DIVALENT-CATION BINDING; TORPEDO ELECTRIC ORGAN; TRANSMITTER RELEASE; PHOSPHATIDYLSERINE VESICLES; SYNAPTIC VESICLES; BILAYER-MEMBRANES; NEUROTRANSMITTER RELEASE AB We have recently proposed a mechanism to describe secretion, a fundament process in all cells. That hypothesis, called porocytosis, embodies all available data, and encompasses both forms of secretion, i.e., vesicular and constitutive. The current accepted view of exocytotic secretion involves the physical fusion of vesicle- and plasma membranes. However, that hypothesized mechanism does not fit all available physiological data (Silver et al., 2001; Kriebel et al., 2001). Energetics of apposed lipid bilayers do not favor unfacilitated fusion. Calcium ion levels are elevated in microdomains at levels of 10(-4)-10(-3) M for 1 ms or less, with the calcium ions showing limited lateral mobility at the site of secretion (Llinas et al., 1992, Silver et al., 1994). We consider that calcium ions, whose mobility is restricted in space and time, establish "salt-bridges'' among adjacent lipid molecules, and establishes transient pores that span the vesicle and plasma membrane lipid bilayers; the lifetime of that transient pore being completely dependent on duration of sufficient calcium ion levels. C1 Marine Biol Lab, Woods Hole, MA 02543 USA. Wayne State Univ, Sch Med, Dept Pharmacol, Detroit, MI 48202 USA. Wayne State Univ, Sch Med, Dept Physiol, Detroit, MI 48202 USA. Wayne State Univ, Sch Med, Dept Radiol, Detroit, MI 48202 USA. Wayne State Univ, Coll Engn, Dept Biomed Engn, Detroit, MI 48202 USA. Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA. SUNY Upstate Med Univ, Dept Neurosci & Physiol, Syracuse, NY 13210 USA. Univ Illinois, Coll Med, Inst Psychiat, Dept Anat & Cell Biol, Chicago, IL USA. RP Marine Biol Lab, Woods Hole, MA 02543 USA. RI X, Simon/F-4678-2011 FU NIDA NIH HHS [DA 015511] NR 110 TC 3 Z9 4 U1 0 U2 0 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0300-4864 J9 J NEUROCYTOL JI J. Neurocytol. PD MAR PY 2003 VL 32 IS 3 BP 277 EP 291 DI 10.1023/B:NEUR.0000010086.07636.df PG 15 WC Cell Biology; Neurosciences SC Cell Biology; Neurosciences & Neurology GA 757EE UT WOS:000187535200007 PM 14724390 ER PT J AU Miller, MK Shen, TD Schwarz, RB AF Miller, MK Shen, TD Schwarz, RB TI Atom probe studies of metallic glasses SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div AB Atom probe tomography was used to characterize the distribution of atoms in bulk amorphous Pd40Ni40P20, Pd40Ni40-xFexP20 (0 < x < 20), and (Pd50Cu50)(100-x)P-x (x = 16.5, 17.5, 19) alloys. The analyses were performed on samples cut from 7-mm diameter rods, which were prepared by quenching the melt at cooling rates of approximately 200 K/s. All the alloys were examined in the as-quenched condition. In the Pd40Ni40-xFexP20 glasses, the increase in Fe concentration causes a systematic increase in the clustering of palladium and ordering of phosphorus. The 20% Fe alloy exhibited a two-phase microstructure. The (Pd50Cu50)(100-x)P-x glasses exhibited fine-scale phase separation into copper-enriched/phosphorus-depleted and copper-depleted/phosphorus-enriched regions. These observations follow from statistical analysis of the concentration frequency distributions, the composition enrichments of shells around each atom, and composition maps. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Met & Ceram, Microscopy Microanal Microstruct Grp, Oak Ridge, TN 37831 USA. Los Alamos Natl Lab, Struct Properties Relat Grp, Los Alamos, NM 87545 USA. RP Miller, MK (reprint author), Oak Ridge Natl Lab, Div Met & Ceram, Microscopy Microanal Microstruct Grp, POB 2008, Oak Ridge, TN 37831 USA. NR 7 TC 9 Z9 9 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 10 EP 16 DI 10.1016/S0022-3093(02)02001-X PG 7 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300003 ER PT J AU Cherne, FJ Baskes, MI Schwarz, RB AF Cherne, FJ Baskes, MI Schwarz, RB TI Atomistic simulations of the phase stability and elastic properties of nickel-zirconium alloys SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID EMBEDDED-ATOM METHOD; MOLECULAR-DYNAMICS; POTENTIALS; AMORPHIZATION; IMPURITIES; SURFACES; METALS; FILMS AB We study them phase stability and the elastic properties of amorphous and crystalline nickel-zirconium alloys using the modified embedded-atom method (MEAM). This binary system was chosen because it has been., extensively characterized. both in the crystalline and amorphous phases. The MEAM potentials developed here predict the melting temperatures of pure Ni and Zr, and those of the known NiZr intermetallic compounds to better than 13%. For all known intermetallic crystalline structures, the enthalpies of formation predicted by the MEAM model compare favorably to experimental data. The calculated atomic volumes show a slight negative deviation from Vegard's law. Calculated values of the shear modulus of the amorphous phase also show good agreement with experiment. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Cherne, FJ (reprint author), Los Alamos Natl Lab, POB 1663,MS G755,MST-8 Struct & Property Relat, Los Alamos, NM 87545 USA. OI Cherne, Frank/0000-0002-8589-6058 NR 23 TC 6 Z9 6 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 45 EP 51 DI 10.1016/S0022-3093(02)01982-8 PG 7 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300009 ER PT J AU Kramer, MJ Besser, MF Yang, N Rozhkova, E Sordelet, DJ Zhang, Y Lee, PL AF Kramer, MJ Besser, MF Yang, N Rozhkova, E Sordelet, DJ Zhang, Y Lee, PL TI Devitrification studies of Zr-Pd and Zr-Pd-Cu metallic glasses SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of the Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WA SP Minerals, Met & Mat Soc, Extract & Proc Div ID QUASI-CRYSTALLINE PHASE; SHORT-RANGE ORDER; ALLOY; TRANSFORMATION; DIFFRACTION AB High temperature X-ray diffraction (HTXRD) is used to investigate the devitrification pathway for two related Zr-based metallic glasses, Zr(70)Pd(30) and Zr(70)Pd(20)Cu(10). Both alloys have similar as-quenched structures and initially devitrify to form a meta-stable quasicrystalline phase. The HTXRD data for the Zr(70)Pd(30) alloy shows the coexistence of the quasicrystalline and the Zr(2)Pd (I4/mmm) crystalline phases over a range of 25 K. Conversely, the Zr(70)Pd(20)Cu(10) alloy shows an additional transformation of the quasicrystalline phase to a meta-stable Zr(2)(PdCu) intermetallic (Zr(2)Si type structure, I4/mcm) that polymorphically transforms to the Zr(2)Ni type structure (I4/mmm) over a very narrow temperature range. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Iowa State Univ, Ames Lab, Met & Ceram Sci Program, USDOE,Dept Mat Sci & Engn, Ames, IA 50011 USA. Argonne Natl Lab, APS, Argonne, IL 60439 USA. RP Kramer, MJ (reprint author), Iowa State Univ, Ames Lab, Met & Ceram Sci Program, USDOE,Dept Mat Sci & Engn, 37 Wilhelm Hall, Ames, IA 50011 USA. EM mjkramer@ameslab.gov NR 23 TC 19 Z9 19 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 62 EP 70 DI 10.1016/S0022-3093(02)01984-1 PG 9 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300011 ER PT J AU Jankowski, AF Wall, MA Nieh, TG AF Jankowski, AF Wall, MA Nieh, TG TI Crystallization of beryllium-boron metallic glasses SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID DEPOSITION; STRENGTH; NITRIDE; ZR AB Prior studies of evaporation and sputter deposition show that the grain size of pure beryllium can be dramatically refined through the incorporation of metal impurities. Recently, the addition of boron at a concentration greater than 11% is shown promote glass formation in sputter deposited beryllium. Here, thermally induced. crystallization of the beryllium-boron metallic glass is reported. The samples are characterized during an in situ annealing treatment with bright field imaging and electron diffraction using transmission electron microscopy. A nanocrystalline structure evolves from the annealed amorphous phase and the crystallization temperature is affected by the boron concentration. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Jankowski, AF (reprint author), Lawrence Livermore Natl Lab, POB 808,Mail Stop L-352,7000 E Ave, Livermore, CA 94550 USA. RI Nieh, Tai-Gang/G-5912-2011 OI Nieh, Tai-Gang/0000-0002-2814-3746 NR 30 TC 7 Z9 7 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 129 EP 136 DI 10.1016/S0022-3093(02)01993-2 PG 8 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300021 ER PT J AU Sordelet, DJ Rozhkova, E Besser, MF Kramer, MJ AF Sordelet, DJ Rozhkova, E Besser, MF Kramer, MJ TI Consolidation of gas atomized Cu47Ti34Zr11Ni8 amorphous powders SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID ALLOYS; GLASS AB The dense, random atomic configuration of bulk metallic glasses enhances their stability against crystallization in the supercooled liquid state. This stability provides the opportunity to deform the material by plastic processing methods such as warm extrusion. Gas atomized Cu47Ti34Zr11Ni8 powders were consolidated at various temperatures above their glass transition temperature (688 K) at extrusion ratios of 5, 9 and 13. At extrusion temperatures approaching T-x (743 K), powders consolidated at an extrusion ratio of 5 were predominantly amorphous while at higher ratios the powders were completely devitrified, yet fully consolidated. Gradients in the degree of devitrification were observed along the length (i.e., top to bottom) of all extruded materials. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Iowa State Univ Sci & Technol, US DOE, Ames Lab, Met & Ceram Sci Program, Ames, IA 50011 USA. RP Sordelet, DJ (reprint author), Iowa State Univ Sci & Technol, US DOE, Ames Lab, Met & Ceram Sci Program, 125 Spedding Hall, Ames, IA 50011 USA. NR 9 TC 19 Z9 21 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 137 EP 143 DI 10.1016/S0022-3093(02)01994-4 PG 7 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300022 ER PT J AU Robertson, J Im, JT Karaman, I Hartwig, KT Anderson, IE AF Robertson, J Im, JT Karaman, I Hartwig, KT Anderson, IE TI Consolidation of amorphous copper based powder by equal channel angular extrusion SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div AB Cu50Ti32Zr12Ni5Si1 gas-atomized powder was consolidated by equal channel angular extrusion (ECAE). Powder was vacuum encapsulated in copper cans and extruded at a temperature above the glass transition temperature (T-g), but below the crystallization temperature (T-x). Five samples were subjected to one extrusion pass, each with a different temperature and extrusion rate. Microstructure, thermal stability, X-ray diffraction measurements and hardness of the ECAE consolidates were examined and compared with those of the initial powder and with a conventional extrusion (CE) consolidate. All consolidates exhibit a supercooled liquid region slightly narrower than that of the starting powder. No significant crystallization peaks are observed in XRD measurements; however, changes in peak shape and the total enthalpy of crystallization in differential scanning calorimetry measurements are attributed to nanocrystallization that is not easily detected by these methods. Greater microhardness values in ECAE consolidates in comparison with the starting powder also support the probability of nanocrystallization. The brittle behavior exhibited by all consolidates is attributed to an initial high oxygen contamination of the powder (similar to2000 ppm) and the possibility of crystallization due to long exposure to temperatures above T-g during consolidation. Microstructural examination of the ECAE consolidates shows significant shear deformation of the particles with one ECAE pass. The results of the present study encourage further work on the fabrication of bulk metallic glass from powder by ECAE consolidation. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. Iowa State Univ Sci & Technol, Ames Lab, Ames, IA 50011 USA. RP Hartwig, KT (reprint author), Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. RI Karaman, Ibrahim/E-7450-2010 OI Karaman, Ibrahim/0000-0001-6461-4958 NR 7 TC 69 Z9 73 U1 1 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 144 EP 151 DI 10.1016/S0022-3093(02)01995-6 PG 8 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300023 ER PT J AU Balch, DK Ustundag, E Dunand, DC AF Balch, DK Ustundag, E Dunand, DC TI Diffraction strain measurements in a partially crystallized bulk metallic glass composite containing ductile particles SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID MECHANICAL-PROPERTIES AB In situ diffraction experiments were performed with high-energy synchrotron X-rays to examine load partitioning and high-stress relaxation during uniaxial compression of a bulk metallic glass composite containing both ductile tantalum particles and crystallized matrix material. The tantalum particles yielded at an applied stress of -800 MPa, while the matrix precipitates remained elastic up to the maximum applied stress of -1250 MPa. The von Mises effective stress in the tantalum particles at yielding was 1500 MPa, well in excess of typical tantalum yield stresses, which is attributed to a combination of solid-solution strengthening and the inhibition of dislocation motion in the 1-2 mum particles. A series of constant crosshead-position measurements made at -1250 MPa suggested the possibility of room-temperature matrix relaxation under high applied loads. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA. CALTECH, Dept Mat Sci, Pasadena, CA 91125 USA. RP Dunand, DC (reprint author), Sandia Natl Labs, Engineered Mat Dept, POB 969,MS 9402, Livermore, CA 94551 USA. RI Dunand, David/B-7515-2009; Ustundag, Ersan/C-1258-2009; OI Ustundag, Ersan/0000-0002-0812-7028; Dunand, David/0000-0001-5476-7379 NR 11 TC 16 Z9 16 U1 1 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 176 EP 180 DI 10.1016/S0022-3093(02)02008-2 PG 5 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300028 ER PT J AU Peter, WH Buchanan, RA Liu, CT Liaw, PK AF Peter, WH Buchanan, RA Liu, CT Liaw, PK TI The fatigue behavior of a zirconium-based bulk metallic glass in vacuum and air SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID MECHANICAL-PROPERTIES; AMORPHOUS METAL; ALLOYS AB Early fatigue studies on bulk metallic glasses (BMGs) have indicated fatigue strengths lower than anticipated. It was suspected that environmental effects degraded the fatigue life. In the present study a zirconium-based BMG, BMG-11 (Zr-10Al-5Ti-17.9Cu-14.6Ni, at.%), was tested in vacuum and air. This comparison was made to define any-detrimental environmental effects due to water vapor on the fatigue lifetime of BMG-11. The limited results obtained so far suggest that water vapor in air does not affect the lifetime. Moreover, the fatigue endurance limit for BMG-11 in air was found to be quite high, 907 MPa, and comparable to, or better than, those of many conventional high-strength alloys. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA. RP Liaw, PK (reprint author), Univ Tennessee, Dept Mat Sci & Engn, 434 Dougherty Engn Bldg, Knoxville, TN 37996 USA. OI Liu, Chain Tsuan/0000-0001-7888-9725 NR 11 TC 58 Z9 58 U1 0 U2 10 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 187 EP 192 DI 10.1016/S0022-3093(02)02009-4 PG 6 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300030 ER PT J AU Harms, U Jin, O Schwarz, RB AF Harms, U Jin, O Schwarz, RB TI Effects of plastic deformation on the elastic modulus and density of bulk amorphous Pd40Ni10Cu30P20 SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article; Proceedings Paper CT Annual Meeting of The-Minerals-Metals-and-Materials-Society CY FEB 17-21, 2002 CL SEATTLE, WASHINGTON SP Minerals Met & Mat Soc, Extract & Proc Div ID METALLIC-GLASS; DEPENDENCE; RELAXATION; VOLUME AB The effect of annealing and plastic deformation on the density and modulus of bulk amorphous Pd40Cu30Ni10P20 was measured. The shear and bulk modulus were measured by resonant-ultrasound spectroscopy. Annealing causes the density and shear modulus to increase, but the bulk modulus remains approximately constant. Following annealing, plastic deformation reduces both the density and shear modulus to their values in the as-quenched samples. A linear relationship was found between the shear modulus and the density. The relative change in the shear modulus is approximately 25 times larger than the relative change in the density. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Schwarz, RB (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. NR 20 TC 41 Z9 44 U1 0 U2 8 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 1-2 BP 200 EP 205 DI 10.1016/S0022-3093(02)02010-0 PG 6 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 650FB UT WOS:000181251300032 ER PT J AU Fu, RW Lin, YM Rabin, O Gresselhaus, G Dresselhaus, MS Satcher, JH Baumann, TF AF Fu, RW Lin, YM Rabin, O Gresselhaus, G Dresselhaus, MS Satcher, JH Baumann, TF TI Transport properties of copper-doped carbon aerogels SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article ID PHOTOCONDUCTIVITY AB The magnetic susceptibility, conductivity, magnetoresistance (MR) and Hall effect of copper-doped carbon aerogels are measured and compared with corresponding results from the original carbon aerogels. The experimental results indicate that the temperature-dependent magnetic susceptibility of the copper-doped and of the original carbon aerogels is well fit by a Curie function at low temperatures. The copper-doped carbon aerogels show a higher susceptibility and spin concentration than the original carbon aerogel. After doping by copper, the materials exhibit a more linear current-voltage curve than the original carbon aerogel under the same measurement conditions. The electrical resistance of the copper-doped carbon aerogels is strikingly lower than that of the original carbon aerogels, and decreases with increasing copper content in the samples. The temperature-dependent resistivity p(T) of all of the copper-doped and original carbon aerogels can be fitted by an exp(T-1/2) dependence for T < 100 K. The copper-doped and pristine carbon aerogels follow a quadratic MR behavior Deltap/p = AB(2) in the magnetic field range B investigated (up to 5 T), except at very low temperatures (T < 4 K). (C) 2003 Elsevier Science B.V. All rights reserved. C1 MIT, Cambridge, MA 02139 USA. Zhongshan Univ, PCFM Lab, Guangzhou 510275, Peoples R China. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Dresselhaus, MS (reprint author), MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA. RI Rabin, Oded/E-5791-2011 NR 11 TC 11 Z9 12 U1 1 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 3 BP 247 EP 253 DI 10.1016/S0022-3093(02)01818-5 PG 7 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 652GC UT WOS:000181370600004 ER PT J AU Kukkadapu, RK Li, H Smith, GL Crum, JD Jeoung, JS Poisl, WH Weinberg, MC AF Kukkadapu, RK Li, H Smith, GL Crum, JD Jeoung, JS Poisl, WH Weinberg, MC TI Mossbauer and optical spectroscopic study of temperature and redox effects on iron local environments in a Fe-doped (0.5 mol% Fe2O3) 18Na(2)O-72SiO(2) glass SO JOURNAL OF NON-CRYSTALLINE SOLIDS LA English DT Article ID QUADRUPOLE SPLITTING DISTRIBUTIONS; SILICA GLASSES; MINERALS; BOROSILICATE; SPECTRA AB Local environments of ferric and ferrous irons were systematically studied with Mossbauer (at liquid helium temperature) and ultraviolet-visible-near infrared spectroscopic methods for various 18Na(2)O-72SiO(2) glasses doped with 0.5 mol% Fe2O3. These were prepared at temperatures of 1300-1600 degreesC in ambient air or at 1500 degreesC under reducing conditions with oxygen partial pressures from 12.3 to 0.27 x 10(-7) atmospheres. The Mossbauer spectroscopic method identified three types of local environments, which were represented by the Fe3+ sextet, the Fe3+ doublet, and the Fe2+ doublet. The Fe3+ sextet ions were assigned to 'isolated' octahedral ions. Under reducing conditions, the octahedral Fe3+ ions were readily converted into octahedral ferrous ions. The Fe3+ doublet exists both in octahedral and tetrahedral environment, mainly as tetrahedral sites in the reduced samples. The tetrahedral ions were found stable against reduction to ferrous ions. The Fe2+ doublet sites existed in octahedral coordination. Combining results from both spectroscopic studies, the 1120- and 2020-nm optical bands were assigned to octahedral ferrous ions with a different degree of distortion rather than different coordinations. Further, we assigned the 375-nm band to the transition of octahedral ferric ions that are sensitive to the change of oxygen partial pressure in glass melting and 415-, 435-, and 485-nm bands to the transitions of the tetrahedral ferric ions that are insensitive to oxidation states of the melt. The effect of ferric and ferrous ions with different coordination environments on the glass immiscibility was elucidated. (C) 2002 Elsevier Science B.V. All rights reserved. C1 Environm Mol Sci Lab, Richland, WA 99352 USA. Pacific NW Natl Lab, Richland, WA 99352 USA. Univ Arizona, Dept Mat Sci & Engn, Tucson, AZ 85721 USA. RP Kukkadapu, RK (reprint author), Environm Mol Sci Lab, Richland, WA 99352 USA. NR 39 TC 18 Z9 19 U1 0 U2 15 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3093 J9 J NON-CRYST SOLIDS JI J. Non-Cryst. Solids PD MAR PY 2003 VL 317 IS 3 BP 301 EP 318 AR PII S0022-3093(02)01815-X DI 10.1016/S0022-3093(02)01815-X PG 18 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA 652GC UT WOS:000181370600009 ER PT J AU Federici, G Andrew, P Barabaschi, P Brooks, J Doerner, R Geier, A Herrmann, A Janeschitz, G Krieger, K Kukushkin, A Loarte, A Neu, R Saibene, G Shimada, M Strohmayer, G Sugihara, M AF Federici, G Andrew, P Barabaschi, P Brooks, J Doerner, R Geier, A Herrmann, A Janeschitz, G Krieger, K Kukushkin, A Loarte, A Neu, R Saibene, G Shimada, M Strohmayer, G Sugihara, M TI Key ITER plasma edge and plasma-material interaction issues SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma-wall interaction; divertor; boundary plasmas; ITER; plasma-edge physics; B2-EIRENE code ID ELMY H-MODES; ASDEX-UPGRADE; HYDROCARBON RADICALS; FACING COMPONENTS; THERMAL RESPONSE; PELLET INJECTION; HIGH-DENSITY; DIII-D; DIVERTOR; FEAT AB Some of the remaining crucial plasma edge physics and plasma-material interaction issues of the ITER tokamak are discussed in this paper, using either modelling or projections of experimental results from existing tokamak operation or relevant laboratory simulations. The paper covers the following subject areas at issue in the design of the ITER device: (1) plasma thermal loads during Type I ELMs and disruptions, ensuing erosion effects and prospects for mitigating measures, (2) control of co-deposited tritium inventory when carbon is used even on small areas in the divertor near the strike points, (3) efficiency of edge and core fuelling for expected pedestal densities in ITER, and (4) erosion and impurity transport with a full tungsten divertor. Directions and priorities of future research are proposed to narrow remaining uncertainties in the above areas. (C) 2003 Published by Elsevier Science B.V. C1 ITER JWS Garching Co Ctr, D-85748 Garching, Germany. Jet Joint Undertaking, Abingdon OX14 3EA, Oxon, England. Argonne Natl Lab, Argonne, IL 60439 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Max Planck Inst Plasma Phys, D-85748 Garching, Germany. Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany. EFDA Close Support Unit, D-85748 Garching, Germany. ITER Naka Joint Work Site, Naka, Ibaraki 3110193, Japan. RP Federici, G (reprint author), ITER JWS Garching Co Ctr, Boltzmannstr 2, D-85748 Garching, Germany. RI Krieger, Karl/F-9762-2014; Neu, Rudolf /B-4438-2010 OI Krieger, Karl/0000-0003-0427-8184; Neu, Rudolf /0000-0002-6062-1955 NR 57 TC 220 Z9 224 U1 4 U2 66 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 MAR PY 2003 VL 313 BP 11 EP 22 AR PII S0022-3115(02)01327-2 DI 10.1016/S0022-3115(02)01327-2 PG 12 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700003 ER PT J AU Bardamid, AF Belyayeva, AI Bondarenko, VN Galuza, AA Gann, VV Jacobson, L Konovalov, VG Orlinskij, DV Papirov, II Ryzhkov, IV Shapoval, AN Shtan, AF Solodovchenko, SI Vasil'ev, AA Voitsenya, VS AF Bardamid, AF Belyayeva, AI Bondarenko, VN Galuza, AA Gann, VV Jacobson, L Konovalov, VG Orlinskij, DV Papirov, II Ryzhkov, IV Shapoval, AN Shtan, AF Solodovchenko, SI Vasil'ev, AA Voitsenya, VS TI Some peculiarities in the behavior of Be surfaces under bombardment by ions from a deuterium plasma SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE beryllium; reflectance; oxide; hydroxide; annealing ID EROSION; ITER AB In experiments with Be mirrors bombarded by keV ions from a deuterium plasma a sharp drop of reflectance in the wavelength 220-650 nm was observed after quite low ion fluence although no mass loss of Be sample was measurable. Therefore such change of reflectance was ascribed to the transformation of the oxide layer, that naturally coats the Be mirror, into a hydroxide film. Supporting this hypothesis, the vacuum annealing of exposed samples at elevated temperature resulted in partial restoration of the reflectance. The effect of deuterium ion bombardment was closely related to the ion energy: the higher energy the deeper the drop of reflectance. In the paper we present results on the reflectance of Be mirrors depending on the experimental conditions, i.e., on the ion energy, annealing temperature, duration of exposure to bombardment by deuterium ions. (C) 2003 Elsevier Science B.V. All rights reserved. C1 NSC KIPT, Inst Plasma Phys, UA-61108 Kharkov, Ukraine. T Shevchenko Natl Univ, UA-03127 Kiev, Ukraine. Natl Tech Univ, UA-61002 Kharkov, Ukraine. Los Alamos Natl Lab, Los Alamos, NM 87545 USA. IV Kurchatov Atom Energy Inst, Moscow 123182, Russia. RP Voitsenya, VS (reprint author), NSC KIPT, Inst Plasma Phys, Akad Str 1, UA-61108 Kharkov, Ukraine. OI Galuza, Alexey/0000-0003-3809-149X NR 13 TC 8 Z9 8 U1 1 U2 2 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 MAR PY 2003 VL 313 BP 112 EP 115 AR PII S0022-3115(02)01384-3 DI 10.1016/S0022-3115(02)01384-3 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700019 ER PT J AU Kugel, HW Soukhanovskii, V Bell, M Blanchard, W Gates, D LeBlanc, B Maingi, R Mueller, D Na, HK Paul, S Skinner, CH Stutman, D Wampler, WR AF Kugel, HW Soukhanovskii, V Bell, M Blanchard, W Gates, D LeBlanc, B Maingi, R Mueller, D Na, HK Paul, S Skinner, CH Stutman, D Wampler, WR TI Impact of the wall conditioning program on plasma performance in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE wall conditioning; impurity control; boronization; boron fueling ID SPHERICAL TORUS EXPERIMENT; BORONIZATION AB High performance operating regimes have been achieved on NSTX through impurity control and wall conditioning techniques. These techniques include HeGDC-aided boronization using deuterated trimethylboron, inter-discharge HeGDC, 350 degreesC PFC bake-out followed by D-2 and HeGDC, and experiments to test fueling discharges with either a He-trimethylboron mixture or pure trimethylboron. The impact of this impurity and density control program on recent advances in NSTX plasma performance is discussed. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Korea Basic Sci Inst, Taejon 305333, South Korea. Johns Hopkins Univ, Baltimore, MD 21218 USA. Sandia Natl Labs, Albuquerque, NM 87123 USA. RP Kugel, HW (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RI Stutman, Dan/P-4048-2015 NR 13 TC 11 Z9 11 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 187 EP 193 AR PII S0022-3115(02)01433-2 DI 10.1016/S0022-3115(02)01433-2 PG 7 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700033 ER PT J AU Buzhinskij, OI Ostroshchenko, VG Whyte, DG Baldwin, M Conn, RW Doerner, RP Seraydarian, R Luckhardt, S Kugel, H West, WP AF Buzhinskij, OI Ostroshchenko, VG Whyte, DG Baldwin, M Conn, RW Doerner, RP Seraydarian, R Luckhardt, S Kugel, H West, WP TI Plasma deposition of boron films with high growth rate and efficiency using carborane SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma; boron films; carborane; high growth; tokamak; plasma-wall interaction ID BORONIZATION AB The injection of carborane (C2B10H12) on the PISCES-B linear plasma device has been used to produce boron containing films on various target species. Film growth rates achieved are extremely high (up to 30 nm/s) compared to those typically found for glow discharges (similar to0.01 nm/s). For low-Z target materials (C and Al) the film production is highly efficient, with the boron film growth rate comparable to the incident ion flux and the injection rate of boron atoms. The boron to carbon ratio is 3.0-3.6 for these films. Similarly high growth rates (similar to10 nm/s) are obtained with high-Z target (W), but with lower deposition efficiency and higher B/C film ratio. The high film growth rate/efficiency are apparently linked to the high degree of carborane ionization and dissociation caused by the similar to40 eV PISCES-B plasma, compared with T < 1 eV plasmas of glow discharges. This technique opens the possibility of continuously producing protective B films in thermonuclear devices where net erosion rates approach 10 nm/s. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Troitsk Inst Innovat & Thermonucl Res, Troitsk 142190, Moscow Region, Russia. Univ Calif San Diego, La Jolla, CA 92093 USA. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Gen Atom Co, San Diego, CA USA. RP Buzhinskij, OI (reprint author), Troitsk Inst Innovat & Thermonucl Res, Troitsk 142190, Moscow Region, Russia. NR 4 TC 24 Z9 25 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 MAR PY 2003 VL 313 BP 214 EP 218 AR PII S0022-3115(02)01482-4 DI 10.1016/S0022-3115(02)01482-4 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700038 ER PT J AU Kasuya, K Kasamatsu, A Kinoshita, Y Kamiya, T Saiki, A Renk, TJ Olson, CL AF Kasuya, K Kasamatsu, A Kinoshita, Y Kamiya, T Saiki, A Renk, TJ Olson, CL TI Ablation rate estimation of inertial fusion reactor candidate material with intense ion beam and X-ray SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE internal fusion; reactor chamber database; wall materials; ablation with ions and X-rays; laser microscope; surface composition AB Various candidate materials were collected from many sources. Some of them were irradiated with intense proton beams at Yokohama campus of Tokyo Institute of Technology (TITech), and some others were irradiated with intense nitrogen beams at Albuquerque site of Sandia National Laboratories (SNL). Intense X-rays of SNL were also used to irradiate other materials including the above collected ones. A series of numerical calculations of X-ray ablations was additionally performed at TITech, which results were compared with the experimental ones. Our aims were to supply necessary data for the future design of inertial fusion reactor chambers. One of the key issues in this field was the ablation thickness of the various chamber wall materials with typical inertial fusion reactions. We measured the ablation thickness of various samples, and we also observed the surface conditions of the samples before and after the irradiations with a microscope and an X-ray luminescence composition analyzer. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Tokyo Inst Technol, Dept Energy Sci, Midori Ku, Kanagawa 2268502, Japan. Tokyo Inst Technol, Ctr Adv Mat Anal, Tokyo 1528550, Japan. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Kasuya, K (reprint author), Tokyo Inst Technol, Dept Energy Sci, Midori Ku, Nagatsuta 4259, Kanagawa 2268502, Japan. NR 8 TC 5 Z9 5 U1 0 U2 0 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 MAR PY 2003 VL 313 BP 235 EP 238 AR PII S0022-3115(02)01485-X DI 10.1016/S0022-3115(02)01485-X PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700042 ER PT J AU Wampler, WR Whyte, DG Wong, CPC West, WP AF Wampler, WR Whyte, DG Wong, CPC West, WP TI Erosion in the DIII-D divertor by neon-detached plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE erosion; carbon; divertor; neon; detached plasma AB We report the first measurements of erosion of divertor materials by plasmas detached by neon injection. Neon injection cooled the plasma edge by radiation, reduced the temperature and increased the density of the divertor plasma, and reduced the peak heat flux onto the divertor plate, while maintaining good H-mode energy confinement and purity of core plasma. The rate of carbon erosion at the outer strike point was very high (similar to 15 nm/s), in contrast to the absence of erosion from plasmas detached by deuterium injection observed in previous experiments. The erosion rate for tungsten and vanadium remained low for neon-detached plasma. A likely cause of the high net carbon erosion rate is physical sputtering by neon, chemically enhanced by the formation of hydrocarbons. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Sandia Natl Labs, Dept 1111, Albuquerque, NM 87185 USA. Univ Calif San Diego, San Diego, CA 92103 USA. Gen Atom Co, San Diego, CA USA. RP Wampler, WR (reprint author), Sandia Natl Labs, Dept 1111, POB 5800,MS 1056, Albuquerque, NM 87185 USA. NR 16 TC 10 Z9 10 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 MAR PY 2003 VL 313 BP 333 EP 336 AR PII S0022-3115(02)01353-3 DI 10.1016/S0022-3115(02)01353-3 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700060 ER PT J AU Cambe, A Gauthier, E Hogan, J Layet, JM AF Cambe, A Gauthier, E Hogan, J Layet, JM TI Chemical sputtering of carbon in Tore-Supra outboard pump limiter SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE chemical sputtering; erosion; redeposition; tokamak; Tore-Supra; carbon ID EROSION; GRAPHITE; DIVERTOR AB The use of a large amount of carbon in tokamaks induces two major problems mainly due to the chemical sputtering: erosion and tritium retention. In the Tore-Supra outboard pump limiter, the in situ chemical sputtering yield of the carbon neutralizer plate has been studied. Investigation of methane and heavier hydrocarbon (C2D(x) and C3Dy) emission has been performed in ohmic and lower hybrid heated discharges, by means of mass spectrometry and optical spectroscopy. Simulation performed with a Monte Carlo code (BBQ) allows validation of the sputtering yield calculation method and show good agreement with experimental data. (C) 2003 Elsevier Science B.V. All rights reserved. C1 EURATOM, CEA Fus Controlee, Ctr Etud Cadarache, F-13108 St Paul Les Durance, France. ORNL, Div Fus Energy, Oak Ridge, TN 37831 USA. Univ Aix Marseille 1, CNRS, UMR 6633, Ctr Univ St Jerome,Serv 241, F-13397 Marseille, France. RP Gauthier, E (reprint author), EURATOM, CEA Fus Controlee, Ctr Etud Cadarache, F-13108 St Paul Les Durance, France. RI GAUTHIER, Eric/E-1076-2011 NR 19 TC 10 Z9 10 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 MAR PY 2003 VL 313 BP 364 EP 369 AR PII S0022-3115(02)01583-0 DI 10.1016/S0022-3115(02)01583-0 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700066 ER PT J AU Brooks, JN Kirschner, A Whyte, DG Ruzic, DN Alman, DA AF Brooks, JN Kirschner, A Whyte, DG Ruzic, DN Alman, DA TI Advances in the modeling of chemical erosion/redeposition of carbon divertors and application to the JET tritium codeposition problem SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE REDEP code; erosion/redeposition; carbon; codeposition/tritium; JET; ITER ID MOLECULAR-DYNAMICS; DIII-D; TOKAMAK; EROSION; REDEPOSITION; RETENTION; PLASMAS AB We have improved the modeling of chemically eroded carbon transport and applied this to JET and ITER. New features are: (1) coupled REDEP and ERO-JET impurity transport code calculations for sputtered wall/divertor carbon, (2) MolDyn molecular dynamics calculations of carbon/hydrocarbon particle reflection at hydrogen-saturated carbon surfaces, (3) ADAS full collisional radiative carbon ion recombination rate coefficients. At low incident particle energies relevant to chemical-erosion (similar to0.1-15 eV), we predict high reflection coefficients (similar to20-100%), implying more net erosion and T/C codeposition than for full-sticking models. Calculated tritium codeposition rates for the JET MkIIA divertor, using 'reference' chemical erosion yields of order 1% - while higher than previously estimated are well short (X similar to 1/40) of published data. Possible explanations include much higher chemical erosion yields. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Argonne Natl Lab, Argonne, IL 60439 USA. Forschungszentrum Julich, Inst Plasma Phys, D-52425 Julich, Germany. Univ Calif San Diego, San Diego, CA 92093 USA. Univ Illinois, Urbana, IL 61801 USA. RP Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM brooks@anl.gov OI Kirschner, Andreas/0000-0002-3213-3225 NR 20 TC 24 Z9 24 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 424 EP 428 AR PII S0022-3115(02)01405-8 DI 10.1016/S0022-3115(02)01405-8 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700077 ER PT J AU Kirschner, A Brooks, JN Philipps, V Wienhold, P Pospieszczyk, A Janev, RK Samm, U AF Kirschner, A Brooks, JN Philipps, V Wienhold, P Pospieszczyk, A Janev, RK Samm, U TI Modelling of the transport of methane and higher hydrocarbons in fusion devices SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma-wall-interaction; ERO-TEXTOR; deposition; JET; hydrocarbons; chemical erosion ID CHEMICAL EROSION; TEXTOR-94; PLASMA AB New Monte Carlo modelling with the ERO-TEXTOR code has been done for methane transport in the scrape off layer of TEXTOR using recently published rate coefficients of the methane family from Brooks/Janev. Compared to former used rate coefficients from Ehrhardt-Langer the new data result in significantly larger D/XB-values at plasma temperatures above similar to20 eV. The computed amount of re-deposit ion is at high plasma temperatures up to a factor of 100 smaller with the new rate coefficients. Parameter studies of the transport of locally injected methane and C2D4 in the divertor MkIIa of JET with ERO-JET (adapted version of ERO-TEXTOR) show a strong influence of the location of injection on D/XB. Calculated D/XB-values can increase up to a factor of 1000 if hydrocarbons are puffed at a location inside the SOL instead at the strike point. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Forschungszentrum Julich, Inst Plasmaphys, EURATOM Assoc, D-52425 Julich, Germany. Argonne Natl Lab, Argonne, IL 60439 USA. RP Forschungszentrum Julich, Inst Plasmaphys, EURATOM Assoc, Postfach 1913, D-52425 Julich, Germany. EM a.kirschner@fz-juelich.de OI Kirschner, Andreas/0000-0002-3213-3225 NR 10 TC 14 Z9 14 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 444 EP 449 AR PII S0022-3115(02)01355-7 DI 10.1016/S0022-3115(02)01355-7 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700081 ER PT J AU Causey, RA AF Causey, RA TI Sputtering and codeposition of silicon carbide with deuterium SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE silicon carbide; sputtering; deuterium; codeposition ID CHEMICAL EROSION; ION-BOMBARDMENT; HYDROGEN; SURFACE; REMOVAL; LAYERS AB Due to its excellent thermal properties, silicon carbide is being considered as a possible plasma-facing material for fusion devices. If used as a plasma-facing material, the energetic hydrogen isotope ions and charge-exchanged neutrals escaping from the plasma,will sputter the silicon carbide. To assess the tritium inventory problems that will be generated by the use of this material, it is necessary that we know the codeposition properties of the redeposited silicon carbide. To determine the codeposition properties, the deuterium plasma experiment at Sandia National Laboratories in Livermore, California has been used to directly compare the deuterium sputtering and codeposition of silicon carbide with that of graphite. A Penning discharge at a flux of 6 x 10(19) D/m(2) and an energy of approximate to300 eV was used to sputter silicon and carbon from a pair of 0.05 in diameter silicon carbide disks. The removal rate of deuterium gas from the fixed volume of the system isolated from all other sources and sinks was used to measure the codeposition probability (probability-that a hydrogen isotope atom will be removed through codeposition per ion striking the sample surface). A small catcher plate used to capture a fraction of the codeposited film was analyzed using Auger spectroscopy. This analysis showed the film to begin with a high carbon to silicon ratio due to preferential sputtering of the carbon. As the film became thicker, the ratio of the depositing material changed over to the (1:1) value that must eventually be attained. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Sandia Natl Labs, Livermore, CA 94550 USA. RP Causey, RA (reprint author), Sandia Natl Labs, POB 969, Livermore, CA 94550 USA. NR 16 TC 0 Z9 0 U1 1 U2 4 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 MAR PY 2003 VL 313 BP 450 EP 454 AR PII S0022-3115(02)01358-2 DI 10.1016/S0022-3115(02)01358-2 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700082 ER PT J AU Sharpe, JP Rohde, V Sagara, A Suzuki, H Komori, A Motojima, O AF Sharpe, JP Rohde, V Sagara, A Suzuki, H Komori, A Motojima, O CA ASDEX Upgrade Expt Team LHD Expt Grp TI Characterization of dust collected from ASDEX-Upgrade and LHD SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE tokamak dust; dust; particulate AB Dust has been collected and analyzed from Axial Symmetric Divertor Experiment-Upgrade (ASDEX-Upgrade) and the Large Helical Device (LHD). A total quantity of 984.4 mg of dust was collected from ASDEX-Upgrade, whereas only 17.6 mg was obtained from roughly equal sampling areas in LHD. Particle sizes determined by count-based measurements from all locations in ASDEX-Upgrade averaged 3.33 mum and LHD dust had an average size of 9.64 mum. Dust from both devices was composed mainly of carbon and constituents of stainless steel, the materials used for most plasma-facing surfaces and the vacuum vessels. Specific surface area (SSA) of the dust from ASDEX-Upgrade ranged between 0.70 and 3.70 m(2)/g. LHD samples contained insufficient mass for measuring SSA. Details from the analysis of each dust collection activity in ASDEX-Upgrade and LHD are described in this paper. (C) 2003 Elsevier Science B.V. All rights reserved. C1 INEEL, Fus Safety Program, Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA. Max Planck Inst Plasma Phys, D-85748 Garching, Germany. Natl Inst Fus Sci, Gifu, Japan. RP INEEL, Fus Safety Program, Idaho Natl Engn & Environm Lab, MS 3860,POB 1625,2525 Fremont Ave, Idaho Falls, ID 83415 USA. EM sharjp@inel.gov NR 4 TC 56 Z9 56 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 455 EP 459 AR PII S0022-3115(02)01360-0 DI 10.1016/S0022-3115(02)01360-0 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700083 ER PT J AU Tanabe, T Bekris, N Coad, P Skinner, CH Glugla, M Miya, N AF Tanabe, T Bekris, N Coad, P Skinner, CH Glugla, M Miya, N TI Tritium retention of plasma facing components in tokamaks SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE tritium; inventory; retention mechanism; TEXTOR; JT-60U; TFTR; JET; divertor; first wall ID IMAGING PLATE TECHNIQUE; FUSION TEST REACTOR; HYDROCARBON FILMS; GRAPHITE; EROSION; CARBON; JT-60U; TFTR; WALL; JET AB The areal distribution of tritium retention in tiles from TEXTOR, TFTR, JT-60U and JET has been measured via the imaging plate technique and the results are discussed from the perspective of carbon-hydrogen chemistry. It is found that the observed tritium distribution clearly shows asymmetries in poloidal and toroidal directions and also reflects the local temperature history of the analyzed tiles. We show the first clear evidence of the loss of high energy tritons by toroidal magnetic field ripple. We distinguish three different contributions to tritium retention in tokamaks with carbon plasma facing components: high energy tritons escaping from the core plasma, low energy ions and neutrals from the edge plasma, and molecular tritium from gas fueling. These components are retained at different depths and with different concentrations. Tritium from the edge plasma dominates the retained inventory but could be reduced if the surface temperature was higher. We propose tokamak operation with plasma facing components above 1000 K as a possible way to reduce the tritium inventory. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan. Forschungszentrum Karlsruhe, Tritium Lab, D-76021 Karlsruhe, Germany. UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 3110193, Japan. RP Tanabe, T (reprint author), Nagoya Univ, Ctr Integrated Res Sci & Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan. NR 39 TC 57 Z9 58 U1 0 U2 4 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 MAR PY 2003 VL 313 BP 478 EP 490 AR PII S0022-3115(02)01377-6 DI 10.1016/S0022-3115(02)01377-6 PG 13 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700087 ER PT J AU Skinner, CH Bekris, N Coad, JP Gentile, CA Glugla, M AF Skinner, CH Bekris, N Coad, JP Gentile, CA Glugla, M TI Tritium removal from JET and TFTR tiles by a scanning laser SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE tritium removal; thermal desorption; lasers; JET; TFTR ID TOKAMAKS AB Fast and efficient tritium removal is needed for future DT machines with carbon plasma facing components. A novel method for tritium release has been demonstrated on codeposited layers on tiles retrieved from the Tokamak Fusion Test Reactor (TFTR) and from the Joint European Torus (JET). A scanning continuous wave Nd laser beam was focused to approximate to100 W/mm(2) and scanned at high speed over the codeposits, heating them to temperatures approximate to2000degreesC for about 10 ms in either air or argon atmospheres. Up to 87% of the codeposited tritium was thermally desorbed from the JET and TFTR samples. Fiber optic coupling between the laser and scanner was implemented. This technique appears to be a promising in situ method for tritium removal in a next step DT device as it does not rely on oxidation, and avoids the associated deconditioning of the plasma facing surfaces and the expense of processing large quantities of tritium oxide. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Forschungszentrum Karlsruhe, Tritium Lab, D-76021 Karlsruhe, Germany. UKAEA Euratom Fus Assoc, Jet Joint Undertaking, Abingdon, Oxon, England. RP Skinner, CH (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451,James Forrestal Campus, Princeton, NJ 08543 USA. NR 15 TC 48 Z9 48 U1 0 U2 7 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 MAR PY 2003 VL 313 BP 496 EP 500 AR PII S0022-3115(02)01382-X DI 10.1016/S0022-3115(02)01382-X PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700089 ER PT J AU Bekris, N Skinner, CH Berndt, U Gentile, CA Glugla, M Schweigel, B AF Bekris, N Skinner, CH Berndt, U Gentile, CA Glugla, M Schweigel, B TI Tritium depth profiles in 2D and 4D CFC tiles from JET and TFTR SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE 2D/4D; CFC; detritiation; JET; TFTR; tritium profiles ID RETENTION; GRAPHITE; REMOVAL AB Carbon fibre composite (CFC) is currently the candidate material for the vertical target tiles in the International Thermonuclear Experimental Reactor (ITER) divertor because of its superior thermornechanical properties. However, its affinity for hydrogen isotopes and their co-deposition with eroded carbon may severely limit ITER plasma operations. Recently tritium depth profiles in divertor tiles retrieved from the Joint European Torus have been obtained by the coring/full combustion technique. The results revealed that a surprisingly large fraction (up to 61%) of the retained tritium had diffused deep into the bulk of the tile, most probably between the woven sheets of the CFC. Additionally, the coring/full combustion technique has shown that only the surface tritium (few ten mum) is efficiently released by air baking while the bulk tritium is almost not affected. Baking the tile under air even at 500degreesC does not detritiate the bulk. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Forschungszentrum Karlsruhe, Tritium Lab, D-76021 Karlsruhe, Germany. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany. RP Bekris, N (reprint author), Forschungszentrum Karlsruhe, Tritium Lab, HVT-TL-Bau 451,Weber Str 5,Postfach 3640, D-76021 Karlsruhe, Germany. NR 20 TC 27 Z9 27 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 501 EP 506 AR PII S0022-3115(02)01576-3 DI 10.1016/S0022-3115(02)01576-3 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700090 ER PT J AU Baylor, LR Jernigan, TC Colchin, RJ Jackson, GL Owen, LW Petrie, TW AF Baylor, LR Jernigan, TC Colchin, RJ Jackson, GL Owen, LW Petrie, TW TI Comparison of fueling efficiency from different fueling locations on DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE fueling; pellet; DIII-D; recylcing; gas ID HIGH-FIELD SIDE; PELLET INJECTION; ASDEX UPGRADE; D TOKAMAK AB Fueling with gas and pellet injection from several different locations has been used on the DIII-D tokamak to study core fueling and transport in H-mode and L-mode plasmas. Specific experiments have been carried out to examine the fueling efficiency into DIII-D H-mode plasmas that have periodic edge localized modes (ELMs). The fueling efficiency, defined as the total increase in number of plasma electrons divided by the number of input fuel atoms, is determined by measurements of plasma electron density profiles before and after a fueling pulse. We have found previously that there is a significantly higher fueling efficiency for pellets injected from the inner wall [J. Nucl. Mater. 290 (2001) 398] versus outside midplane pellet injection or gas puffing. In this study we extend this work to include the investigation of gas puffing from the same inner wall injection locations as the pellets to determine if a similar effect may exist. The mechanism for the improved pellet fueling from the inner wall is hypothesized to be a delB induced polarization of the pellet cloud leading to an E x B drift [Phys. Plasmas 7 (2000) 1968] in the major radius direction. The possibility of similar physics playing a role in gas puff fueling is examined in these experiments and does not appear to be a significant effect. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37831 USA. Gen Atom Co, San Diego, CA 92186 USA. Lawrence Livermore Natl Lab, Livermore, CA USA. RP Baylor, LR (reprint author), Oak Ridge Natl Lab, Div Fus Energy, POB 2009, Oak Ridge, TN 37831 USA. NR 12 TC 14 Z9 14 U1 1 U2 6 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 MAR PY 2003 VL 313 BP 530 EP 533 AR PII S0022-3115(02)01456-3 DI 10.1016/S0022-3115(02)01456-3 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700095 ER PT J AU Umansky, MV Rognlien, TD Fenstermacher, ME Borchardt, M Mutzke, A Riemann, J Schneider, R Owen, LW AF Umansky, MV Rognlien, TD Fenstermacher, ME Borchardt, M Mutzke, A Riemann, J Schneider, R Owen, LW TI Modeling of localized neutral particle sources in 3D edge plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE 3D edge plasma; neutral transport; stellarator ID MAGNETIC-FIELD; TRANSPORT; DIVERTOR; CODE; BETA AB A 3D fluid neutral model is added to the 3D plasma transport code BoRiS. The neutral model includes equations for parallel momentum and collisional perpendicular diffusion. This makes BoRiS an integrated plasma-neutral model suitable for a variety of applications. Results are presented for the distribution of neutrals from a localized gas source in the National Compact Stellarator Experiment geometry. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany. Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. RP Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM umansky@llnl.gov NR 16 TC 6 Z9 6 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 559 EP 563 AR PII S0022-3115(02)01373-9 DI 10.1016/S0022-3115(02)01373-9 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700101 ER PT J AU Wolf, NS Petrie, TW Porter, GD Rognlien, TD Groebner, RJ Mahdavi, MA AF Wolf, NS Petrie, TW Porter, GD Rognlien, TD Groebner, RJ Mahdavi, MA TI Role of neutrals in core fueling and pedestal structure in H-mode DIII-D discharges SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE UEDGE; simulations; fueling; core carbon; pedestal width; pedestal gradient ID PLASMAS AB The 2-D fluid code UEDGE was used to analyze DIII-D experiments to determine the role of neutrals in core fueling, core impurities, and also the H-mode pedestal structure. We compared the effects of divertor closure on the fueling rate and impurity density of high-triangularity, H-mode plasmas. UEDGE simulations indicate that the decrease in both-deuterium core fueling (approximate to15-20%) and core carbon density (approximate to15-30%) with the closed divertor compared to the open divertor configuration is due to greater divertor screening of neutrals. We also compared UEDGE results with a simple analytic model of the H-mode pedestal structure [Nucl. Fusion 42 (2002) 52]. The model predicts both the width and gradient of the transport barrier in n(e) as a function of the pedestal density. The more sophisticated UEDGE simulations of H-mode discharges corroborate the simple analytic model, which is consistent with the hypothesis that fueling processes play a role in H-mode transport barrier formation. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Gen Atom Co, San Diego, CA 92186 USA. RP Wolf, NS (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. NR 11 TC 3 Z9 3 U1 0 U2 5 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 MAR PY 2003 VL 313 BP 564 EP 567 AR PII S0022-3115(02)01406-X DI 10.1016/S0022-3115(02)01406-X PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700102 ER PT J AU Soukhanovskii, VA Maingi, R Raman, R Kugel, HW LeBlanc, BP Roquemore, AL Skinner, CH AF Soukhanovskii, VA Maingi, R Raman, R Kugel, HW LeBlanc, BP Roquemore, AL Skinner, CH CA NSTX Res Team TI Core fueling and edge particle flux analysis in ohmically and auxiliary heated NSTX plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE spherical torus; fueling; particle balance; NSTX ID ALCATOR C-MOD; TRANSPORT AB The Boundary Physics program of the National Spherical Torus Experiment (NSTX) is focusing on optimization of the edge power and particle flows in beta(l) greater than or equal to 25% L- and H-mode plasmas of t less than or equal to 0.8 s duration heated by up to 6 MW of high harmonic fast wave and up to 5 MW of neutral beam injection (NBI). Particle balance and core fueling efficiencies of low and high field side gas fueling in L-mode ohmic and NBI-heated plasmas have been compared using an analytical zero-dimensional particle balance model and measured ion and neutral fluxes. Gas fueling efficiencies are in the range of 0.05-0.20 and do not depend on discharge magnetic configuration, density or poloidal location of the injector. The particle balance modeling indicates that the addition of a pseudo-constant high field side (HFS) fueling source results in a reversal of the wall loading rate and higher wall inventories. Initial particle source estimates obtained from neutral pressure and spectroscopic measurements indicate that the recycling flux in the divertor exceeds the main chamber ion and neutral fluxes by over an order of magnitude. Present analysis provides the basis for detailed fluid modeling of edge heat and particle flows using transport models which include both diffusion and convection. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Washington, Seattle, WA 98195 USA. RP Princeton Plasma Phys Lab, POB 451,MS-15, Princeton, NJ 08543 USA. EM vlad@pppl.gov NR 9 TC 9 Z9 9 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 573 EP 578 AR PII S0022-3115(02)01413-7 DI 10.1016/S0022-3115(02)01413-7 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700104 ER PT J AU Colchin, RJ Owen, LW AF Colchin, RJ Owen, LW TI Neutral particle fueling at the midplane of DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma fueling; plasma edge; DIII-D; B2.5-DEGAS ID DIVERTED PLASMAS; TRANSPORT AB Data from an array of eight tangential D-alpha viewchords, located at the outer midplane of DIII-D, are inverted to obtain atomic neutral density profiles across the separatrix and are compared to results of B2.5 and DEGAS simulations. In H-mode and (low density) L-mode plasma conditions, charge-exchange neutrals reflected and desorbed from the outer midplane region of the vacuum vessel wall can account for the midplane neutral density that is deduced from the D-alpha data, making it unnecessary to invoke main chamber ion recycling, The midplane measurements and DEGAS calculations are used to validate a slab-model of neutrals in the edge. In this model, cold neutrals from the wall fuel the edge and are attenuated by charge-exchange and ionization, and the results are in agreement with measured neutral profiles. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37831 USA. RP Colchin, RJ (reprint author), Oak Ridge Natl Lab, Div Fus Energy, POB 2009, Oak Ridge, TN 37831 USA. NR 10 TC 7 Z9 7 U1 1 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 MAR PY 2003 VL 313 BP 609 EP 613 AR PII S0022-3115(02)01436-8 DI 10.1016/S0022-3115(02)01436-8 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700111 ER PT J AU Majeski, R Boaz, M Hoffman, D Jones, B Kaita, R Kugel, H Munsat, T Spaleta, J Soukhanovskii, V Timberlake, J Zakharov, L Antar, G Doerner, R Luckhardt, S Conn, RW Finkenthal, M Stutman, D Maingi, R Ulrickson, M AF Majeski, R Boaz, M Hoffman, D Jones, B Kaita, R Kugel, H Munsat, T Spaleta, J Soukhanovskii, V Timberlake, J Zakharov, L Antar, G Doerner, R Luckhardt, S Conn, RW Finkenthal, M Stutman, D Maingi, R Ulrickson, M TI CDX-U operation with a large area liquid lithium limiter SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE lithium; tokamak; limiter AB The current drive experiment-upgrade (CDX-U) at the Princeton Plasma Physics Laboratory has begun experiments with a fully toroidal liquid lithium limiter. CDX-U is a compact (R = 34 cm, a = 22 cm B-toroidal = 2 kG, I-P = 100 kA, T-e(0) similar to 100 eV, n(e)(0) similar to 5 x 10(19) m(-3)) short-pulse (<25 ms) spherical torus with extensive diagnostics. The limiter, which consists of a shallow circular stainless steel tray of radius 34 cm and width 10 cm, can be filled with lithium to a depth of a few millimeters, and forms the lower limiting surface for the discharge. Heating elements beneath the tray are used to liquefy the lithium prior to the experiment. Surface coatings are evident on part of the lithium. Despite the surface coatings, tokamak discharges operated in contact with the lithium-filled tray show evidence of reduced impurities and recycling. The reduction in recycling is largest when the lithium is liquefied. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Univ Calif San Diego, San Diego, CA 92103 USA. Johns Hopkins Univ, Baltimore, MD USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Majeski, R (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RI Stutman, Dan/P-4048-2015 NR 11 TC 20 Z9 21 U1 1 U2 6 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 MAR PY 2003 VL 313 BP 625 EP 629 AR PII S0022-3115(02)01365-X DI 10.1016/S0022-3115(02)01365-X PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700114 ER PT J AU Hassanein, A Konkashbaev, I AF Hassanein, A Konkashbaev, I TI Comprehensive modeling of ELMs and their effect on plasma-facing surfaces during normal tokamak operation SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE ELMs; disruptions; vapor shielding; erosion; divertor; HEIGHTS package ID INSTABILITIES; DIVERTOR AB During the normal operation of the high confinement regime (H-mode) in next generation tokamaks, edge-localized modes (ELMs) are a serious concern for divertor plasma-facing components. The periodic relaxation of edge pressure gradient results in pulses of energy and particles transported across the Separatrix to the scrape-off-layer (SOL) and eventually to the divertor surface. ELMs could, therefore, result in cyclic thermal stresses, excessive target erosion, and consequently shorter divertor lifetime. In this study a comprehensive two-fluid model has been developed to integrate SOL parameters during ELMs with divertor surface evolution (melting, vaporization, vapor cloud dynamics, and macroscopic spallation) for different ELM parameters. Calculations were performed using the HEIGHTS numerical simulation package. Initial results indicate that high-power ELMs in ITER-like machines can cause serious damage to divertor components, may terminate plasma in disruptions, and may affect subsequent plasma operations due to extensive contamination. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Argonne Natl Lab, Argonne, IL 60439 USA. RP Hassanein, A (reprint author), Argonne Natl Lab, 9700 S Cass Ave,Bldg 308, Argonne, IL 60439 USA. NR 7 TC 23 Z9 24 U1 0 U2 12 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 MAR PY 2003 VL 313 BP 664 EP 669 AR PII S0022-3115(02)01376-4 DI 10.1016/S0022-3115(02)01376-4 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700121 ER PT J AU Leonard, AW Boedo, JA Fenstermacher, ME Groebner, RJ Goth, M Lasnier, CJ Mahdavi, MA Osborne, TH Rudakov, DL Petrie, TW Watkins, JG AF Leonard, AW Boedo, JA Fenstermacher, ME Groebner, RJ Goth, M Lasnier, CJ Mahdavi, MA Osborne, TH Rudakov, DL Petrie, TW Watkins, JG TI Transport of ELM energy and particles into the SOL and divertor of DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE ELM; boundary transport; transient heat flux; pedestal ID ASDEX-UPGRADE; HIGH-DENSITY; H-MODES; CONFINEMENT; FLUX; JET AB We report on DIII-D data that reveal the underlying processes responsible for transport of energy and particles from the edge pedestal to the divertor target during Type I edge-localized modes (ELMs). The separate convective and conductive transport of energy due to an ELM is determined by Thomson scattering measurements of electron density and temperature in the pedestal. Conductive transport is measured as a drop in pedestal temperature and decreases with increasing density. The convective transport of energy, measured as a loss of density from the pedestal, however, remains constant as a function of density. From the SOL, ELM energy is quickly carried to the divertor target. An expected sheath limit to the ELM heat flux set by the slower arrival of pedestal ions is overcome by additional ionization of neutrals generated from the divertor target as evidenced by a fast, similar to100 mus, rise in divertor density. A large in/out asymmetry of the divertor ELM heat flux is observed at high density, but becomes nearly symmetric at low density. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom, San Diego, CA 92186 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Leonard, AW (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. NR 19 TC 34 Z9 34 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 768 EP 776 AR PII S0022-3115(02)01426-5 DI 10.1016/S0022-3115(02)01426-5 PG 9 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700141 ER PT J AU Pitts, RA Andrew, P Andrew, Y Becoulet, M Coffey, I Coster, D McDonald, DC Eich, T Erents, SK Fenstermacher, ME Fundamenski, W Haas, G Hermann, A Hidalgo, C Hillis, D Huber, A Ingesson, LC Jachmich, S Kallenbach, A Korotkov, A Lawson, K Lomas, P Loarer, T Loarte, A Matthews, GF McCracken, G Meigs, A Mertens, P O'Mullane, M Phillipps, V Porter, G Pospieszczyk, A Rapp, J Reiter, D Riccardo, V Saibene, G Sartori, R Stamp, MF Tsitrone, E Wischmeier, W Gafert, J AF Pitts, RA Andrew, P Andrew, Y Becoulet, M Coffey, I Coster, D McDonald, DC Eich, T Erents, SK Fenstermacher, ME Fundamenski, W Haas, G Hermann, A Hidalgo, C Hillis, D Huber, A Ingesson, LC Jachmich, S Kallenbach, A Korotkov, A Lawson, K Lomas, P Loarer, T Loarte, A Matthews, GF McCracken, G Meigs, A Mertens, P O'Mullane, M Phillipps, V Porter, G Pospieszczyk, A Rapp, J Reiter, D Riccardo, V Saibene, G Sartori, R Stamp, MF Tsitrone, E Wischmeier, W Gafert, J CA EFDA-JET workprogramme TI Comparing scrape-off layer and divertor physics in JET pure He and D discharges SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE tokamak; divertor; helium; density limit; carbon source; detachment AB Though helium plasmas are one option for the low activation phase of ITER, little effort has thus far been devoted to studying them in a large, diverted tokamak. A recent campaign on JET has therefore sought to address some of the important questions related to helium operation (He concentrations near 90%) in single null configuruations, particularly with regard to edge and divertor physics. This contribution compiles a selection of results from these experiments, in which, in each case, discharges have been chosen to match as closely as possible previous, well characterised D plasmas in both L and ELMing H-modes. These matched pulses are used to draw conclusions regarding the principle source and location of carbon production in D plasmas, to compare and contrast the mechanisms of the density limit and the detachment process in D and He, to investigate the nature of cross-field power transport in the SOL and to gain insight into the process by which ELM energy is transported to the divertor targets. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, Ctr Rech & Phys Plasmas, CH-1015 Lausanne, Switzerland. UKAEA Euratom Fus Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England. Assoc EURATOM CEA, CEA Cadarache, F-13018 St Paul Les Durance, France. EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Assoc EURATOM CIEMAT, Madrid 28040, Spain. Oak Ridge Natl Lab, Oak Ridge, TN USA. Euratom Inst Plasmasphys, FZJ Julich GmbH, TEC, D-52425 Julich, Germany. EURATOM, FOM, NL-3430 BE Nieuwegein, Netherlands. Assoc Euratom Belgian State, ERM KMS, LPP, B-1000 Brussels, Belgium. Max Planck Inst Plasma Phys, EFDA CSU, D-85748 Garching, Germany. RP Pitts, RA (reprint author), Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, Ctr Rech & Phys Plasmas, CH-1015 Lausanne, Switzerland. RI Coster, David/B-4311-2010; Hidalgo, Carlos/H-6109-2015; OI Coster, David/0000-0002-2470-9706; Rapp, Juergen/0000-0003-2785-9280 NR 16 TC 14 Z9 14 U1 0 U2 7 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 MAR PY 2003 VL 313 BP 777 EP 786 AR PII S0022-3115(02)01429-0 DI 10.1016/S0022-3115(02)01429-0 PG 10 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700142 ER PT J AU Boedo, JA Rudakov, DL Colchin, RJ Moyer, RA Krasheninnikov, S Whyte, DG McKee, GR Porter, G Schaffer, MJ Stangeby, PC West, WP Allen, SL Leonard, AW AF Boedo, JA Rudakov, DL Colchin, RJ Moyer, RA Krasheninnikov, S Whyte, DG McKee, GR Porter, G Schaffer, MJ Stangeby, PC West, WP Allen, SL Leonard, AW TI Intermittent convection in the boundary of DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE transport; intermittency; SOL; tokamak ID SCRAPE-OFF-LAYER; BEAM EMISSION-SPECTROSCOPY; FAST SCANNING PROBE; ALCATOR C-MOD; ELECTRON-TEMPERATURE; TURBULENT TRANSPORT; PLASMA TRANSPORT; D TOKAMAK; EDGE; FLUCTUATIONS AB Intermittent plasma objects (IPOs) featuring higher pressure than the surrounding plasma, and responsible for similar to50% of the E x B-T radial transport, are observed in the scrape-off layer (SOL) and edge of the DIII-D tokamak. The skewness (i.e., asymmetry of fluctuations from the average) of probe and BES intermittent data suggest IPO formation at or near the last closed flux surface (LCFS) and the existence of hole-IPO pairs. The particle content of the IPOs at the LCFS is linearly dependent on the discharge density, however, when normalized to the local averaged density, it is fairly insensitive to density variations. It is also shown that the IPOs thermalize with the background plasma within I cm of the LCFS. The IPOs appear in the SOL of both L and H mode discharges carrying similar to50% of the total SOL radial E x B-T transport at all radii. However, the total flux and the IPO contribution, are highly reduced in H-mode conditions due to the increased confinement. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom, San Diego, CA 92186 USA. Univ Calif San Diego, San Diego Energy Res Ctr, La Jolla, CA 92093 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Wisconsin, Madison, WI 53706 USA. Univ Toronto, Inst Aerosp Studies, N York, ON M3H 5T6, Canada. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Boedo, JA (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. NR 31 TC 29 Z9 29 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 MAR PY 2003 VL 313 BP 813 EP 819 AR PII S0022-3115(02)01443-5 DI 10.1016/S0022-3115(02)01443-5 PG 7 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700146 ER PT J AU Asakura, N Sakurai, S Itami, K Naito, O Takenaga, H Higashijima, S Koide, Y Sakamoto, Y Kubo, H Porter, GD AF Asakura, N Sakurai, S Itami, K Naito, O Takenaga, H Higashijima, S Koide, Y Sakamoto, Y Kubo, H Porter, GD TI Plasma flow measurement in high- and low-field-side SOL and influence on the divertor plasma in JT-60U SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE SOL plasma flow; flow reversal; drift effects; high-field-side SOL; in-out asymmetry; Mach probe ID SCRAPE-OFF LAYERS; TOKAMAK; TRANSPORT AB Three reciprocating Mach probes were installed at the high-field-side (HFS) baffle, low-field-side (LFS) midplane and just below the X-point in JT-60U tokamak in order to investigate the SOL flow pattern. Profiles of particle fluxes produced by parallel SOL flow and E, x B-drift flow were evaluated from Mach number, electron temperature, density and floating potential. The drift particle flux was dominant near the separatrix, while it became smaller than the parallel particle flux at the outer flux surfaces. Total particle fluxes towards HFS and LFS divertors were investigated at various plasma densities. The drift flux was comparable to the parallel flux at relatively low densities, while the parallel flux became dominant at high densities. Drift flux in the private flux region was also evaluated, and it contributed to produce in-out asymmetries in the divertor ion flux and particle recycling under attached divertor condition. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Japan Atom Energy Res Inst, Naka Fus Res Estab, Naka, Ibaraki 3110193, Japan. Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Asakura, N (reprint author), Japan Atom Energy Res Inst, Naka Fus Res Estab, 801-1 Mukouyama, Naka, Ibaraki 3110193, Japan. NR 16 TC 28 Z9 28 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 820 EP 827 AR PII S0022-3115(02)01446-0 DI 10.1016/S0022-3115(02)01446-0 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700147 ER PT J AU Petrie, TW Watkins, JG Baylor, LR Brooks, NH Fenstermacher, ME Hyatt, AW Jackson, GL Lasnier, CJ Leonard, AW Pigarov, AY Rensink, ME Rognlien, TD Schaffer, MJ Wolf, NS AF Petrie, TW Watkins, JG Baylor, LR Brooks, NH Fenstermacher, ME Hyatt, AW Jackson, GL Lasnier, CJ Leonard, AW Pigarov, AY Rensink, ME Rognlien, TD Schaffer, MJ Wolf, NS CA DIII-D Team TI Changes in edge and scrape-off layer plasma behavior due to variation in magnetic balance in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE divertor; magnetic balance; DIII-D; recycling; UEDGE; double-null ID DIVERTOR; TOKAMAKS AB Changes in the divertor magnetic balance in DIII-D H-mode plasmas affects core, edge, and divertor plasma behavior. Both the pedestal density n(ePED) and plasma stored energy W-T were sensitive to changes in magnetic balance near the double-null (DN) configuration, e.g., both decreased 20-30% when the DN shifted to a slightly unbalanced DN, where the B x delB. drift direction. pointed away from the main X-point. Recycling at each of the four divertor targets was sensitive to changes in magnetic balance and the B x delB drift direction. The poloidal distribution of the recycling in DN is in qualitative agreement with the predictions of UEDGE modeling with particle drifts included. The particle flux at the inner divertor target is shown to be much more sensitive to magnetic balance than the particle flux at the outer divertor target near the DN shape. These results suggest possible advantages and drawbacks for balanced DN operation. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom, San Diego, CA 92186 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. RP Petrie, TW (reprint author), Gen Atom, POB 85608, San Diego, CA 92186 USA. NR 12 TC 16 Z9 16 U1 0 U2 0 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 MAR PY 2003 VL 313 BP 834 EP 838 AR PII S0022-3115(02)01459-9 DI 10.1016/S0022-3115(02)01459-9 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700149 ER PT J AU Coster, DP Bonnin, X Corrigan, G Dejarnac, R Fenstermacher, M Fundamenski, W Geier, A Hogan, J Kallenbach, A Kirschner, A Krieger, K Loarte, A Matthews, G Pitts, RA Porter, G Pugno, R Reiser, D Reiter, D Sipila, S Spence, J Stangeby, PC Tsitrone, E Tskhakaya, D Wischmeier, M AF Coster, DP Bonnin, X Corrigan, G Dejarnac, R Fenstermacher, M Fundamenski, W Geier, A Hogan, J Kallenbach, A Kirschner, A Krieger, K Loarte, A Matthews, G Pitts, RA Porter, G Pugno, R Reiser, D Reiter, D Sipila, S Spence, J Stangeby, PC Tsitrone, E Tskhakaya, D Wischmeier, M CA EFDA-JET Workprogramme TI An overview of JET edge modelling activities SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE JET; divertor; impurities; edge fluid codes; edge Monte-Carlo codes; edge modelling ID ONION-SKIN MODEL; CODE; SIMULATION; FLUID; TOKAMAK AB A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed modelling (that looking at particular physics effects) and integrated modelling (attempting to combine codes or encapsulate the physics from some codes into other codes) is examined. (C) 2003 Elsevier Science B.V. All rights reserved. C1 EURATOM, Max Planck Inst Plasmaphys, D-85748 Garching, Germany. EURATOM, Max Planck Inst Plasmaphys, Greifswald, Germany. EURATOM, Culham Sci Ctr, Abingdon, Oxon, England. DRFC, Assoc Euratom CEA, Cadarache, France. Gen Atom, San Diego, CA USA. Oak Ridge Natl Lab, Oak Ridge, TN USA. EURATOM, FZ Julich, Inst Plasmaphys, Julich, Germany. Close Support Unit, European Fus Dev Agreement, Garching, Germany. Ecole Polytech Fed Lausanne, Assoc EURATOM Confederat Suisse, CRPP, Lausanne, Switzerland. LLNL, Livermore, CA USA. Aalto Univ, Assoc Euratom, Tekes, Finland. Univ Toronto, Inst Aerosp Studies, Toronto, ON, Canada. Univ Innsbruck, Dept Theoret Phys, Innsbruck, Austria. RP EURATOM, Max Planck Inst Plasmaphys, Boltzmann Str 2, D-85748 Garching, Germany. EM david.coster@ipp.mpg.de RI Coster, David/B-4311-2010; Krieger, Karl/F-9762-2014; OI Coster, David/0000-0002-2470-9706; Krieger, Karl/0000-0003-0427-8184; Bonnin, Xavier/0000-0002-6743-1062; Kirschner, Andreas/0000-0002-3213-3225 NR 12 TC 10 Z9 10 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 868 EP 872 AR PII S0022-3115(02)01466-6 DI 10.1016/S0022-3115(02)01466-6 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700155 ER PT J AU Isler, RC Colchin, RJ Brooks, NH Evans, TE West, WP Whyte, DG AF Isler, RC Colchin, RJ Brooks, NH Evans, TE West, WP Whyte, DG TI Carbon sources in the DIII-D tokamak SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE carbon production; spectroscopy; sputtering; divertor; carbon line profiles AB Physical and chemical sputtering in the DIII-D divertors are distinguished by comparisons of emission rates of C 1, CD, and C-2 radiation and by spectral profiles of C I lines. When flux measurements indicate chemical sputtering dominates, the effective C I temperatures (best fit to a thermal distribution) tend to lie in the range 1.0 +/- 0.2 eV, as expected for atoms coming from molecular dissociation. When P-inj greater than or equal to 7 MW and (n) over bar (e), < 5 x 10(13) cm(-3), molecular emissions are very weak, if present at all, and effective C I temperatures reach values 5-7 eV. In these cases, detailed examinations of the C I line profiles often reveal that they are asymmetric with shifted peaks. Such characteristics are consistent with expectations for physical sputtering, and attempts have been made to understand the line shapes by modeling them using Thompson flux distributions. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Gen Atom, San Diego, CA 92186 USA. Univ Calif San Diego, San Diego, CA 92093 USA. RP Isler, RC (reprint author), Oak Ridge Natl Lab, Box 2009, Oak Ridge, TN 37831 USA. OI Isler, Ralph/0000-0002-5368-7200 NR 6 TC 7 Z9 7 U1 1 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 MAR PY 2003 VL 313 BP 873 EP 877 AR PII S0022-3115(02)01468-X DI 10.1016/S0022-3115(02)01468-X PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700156 ER PT J AU Jackson, GL Boedo, JA Lasnier, CJ Leonard, AW McKee, GR Murakami, M Wade, MR Watkins, JG West, WP Whyte, DG AF Jackson, GL Boedo, JA Lasnier, CJ Leonard, AW McKee, GR Murakami, M Wade, MR Watkins, JG West, WP Whyte, DG TI Edge plasma effects in DIII-D impurity seeded discharges SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE DIII-D; impurity seeding; H-mode; SOL ID CONFINEMENT; DIVERTOR; DENSITY AB DIII-D, ELMing H-mode radiating mantle discharges have been obtained with electron density near the Greenwald density limit and a large fraction of the input power radiated inside the last closed flux surface, significantly reducing peak divertor heat fluxes. In these 'puff and pump' discharges, the introduction of argon reduces particle flux to divertor tiles by a factor of 4 while peak heat flux is half of the no impurity value, suggesting that impurity seeding may be a useful control tool to reduce wall heat and particle fluxes in fusion reactors. A robust H-mode transport barrier is maintained and there are only small changes in the ELM energy and ELM frequency. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom Co, San Diego, CA 92186 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Wisconsin, Madison, WI 53706 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Jackson, GL (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA. NR 15 TC 1 Z9 1 U1 1 U2 4 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 MAR PY 2003 VL 313 BP 878 EP 882 AR PII S0022-3115(02)01469-1 DI 10.1016/S0022-3115(02)01469-1 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700157 ER PT J AU Stangeby, PC Elder, JD Boedo, JA Bray, B Brooks, NH Fenstermacher, ME Groth, M Isler, RC Lao, LL Lisgo, S Porter, GD Reiter, D Rudakov, DL Watkins, JG West, WP Whyte, DG AF Stangeby, PC Elder, JD Boedo, JA Bray, B Brooks, NH Fenstermacher, ME Groth, M Isler, RC Lao, LL Lisgo, S Porter, GD Reiter, D Rudakov, DL Watkins, JG West, WP Whyte, DG TI Interpretive modeling of simple-as-possible-plasma discharges on DIII-D using the OEDGE code SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE OEDGE; DIVIMP; EIRENE; modeling; divertor Thompson; edge spectroscopy ID DIVERTOR AB Recently a number of major, unanticipated effects have been reported in tokamak edge research raising the question of whether we understand the controlling physics of the edge. This report is on the first part - here focused on the outer divertor - of a systematic study of the simplest possible edge plasma - no ELMs, no detachment, etc. - for a set of 10 repeat, highly diagnosed, single-null, divertor discharges in DIII-D. For almost the entire, extensive data set so far evaluated, the matches of experiment and model are so close as to imply that the controlling processes at the outer divertor for these simple plasma conditions have probably been correctly identified and quantitatively characterized in the model. The principal anomaly flagged so far relates to measurements of T-e near the target, potentially pointing to a deficiency in our understanding of sheath physics in the tokamak environment. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Univ Toronto, Inst Aerosp Studies, N York, ON M3H 5T6, Canada. Gen Atom Co, San Diego, CA 92186 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Calif San Diego, La Jolla, CA 90293 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Dusseldorf, D-52425 Julich, Germany. KFA, D-52425 Julich, Germany. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Stangeby, PC (reprint author), Univ Toronto, Inst Aerosp Studies, 4925 Dufferin St, N York, ON M3H 5T6, Canada. RI Groth, Mathias/G-2227-2013; OI Isler, Ralph/0000-0002-5368-7200 NR 9 TC 38 Z9 38 U1 0 U2 10 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 MAR PY 2003 VL 313 BP 883 EP 887 AR PII S0022-3115(02)01470-8 DI 10.1016/S0022-3115(02)01470-8 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700158 ER PT J AU Lasnier, CJ Burrell, KH deGrassie, JS Leonard, AW Moyer, RA Porter, GD Watkins, JG AF Lasnier, CJ Burrell, KH deGrassie, JS Leonard, AW Moyer, RA Porter, GD Watkins, JG CA DIII-D Team TI Scrape-off layer features of the QH-mode SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE SOL; divertor; QH; QDB; EHO; ELM; trapped particle orbits ID DIII-D TOKAMAK; DOUBLE-BARRIER REGIME; QUIESCENT AB The quiescent high confinement (QH-mode) and quiescent double barrier (QDB) modes in DIII-D have long-duration H-mode confinement without ELMs, possibly an alternative operating mode in future tokamaks for avoiding damage by ELMs. Instead of ELMs, there is an edge harmonic oscillation (EHO), which is a continuous electromagnetic mode with associated density fluctuations. The edge pedestal is similar to ELMing H-mode, but at very low density to date. We see C6+ ion temperatures of 3-7 keV in scrape-off layer (SOL), 100 kV/m radial electric fields just inside the separatrix, and a hot area on the divertor baffle whose heating correlates with the presence of the EHO. We attribute the baffle heating to perturbation of trapped ion orbits by the EHO, allowing particles to strike the baffle. The outboard SOL is wider than the inboard, probably for lack of trapped ions on the inside. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom Co, LLNL, San Diego, CA 92186 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Lasnier, CJ (reprint author), Gen Atom Co, LLNL, POB 85608, San Diego, CA 92186 USA. NR 7 TC 9 Z9 9 U1 1 U2 2 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 MAR PY 2003 VL 313 BP 904 EP 908 AR PII S0022-3115(02)01474-5 DI 10.1016/S0022-3115(02)01474-5 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700162 ER PT J AU Hill, DN Wood, RD Bulmer, R McLean, HS Ryutov, D Stallard, BW Woodruff, S AF Hill, DN Wood, RD Bulmer, R McLean, HS Ryutov, D Stallard, BW Woodruff, S TI Wall conditioning and power balance for spheromak plasmas in SSPX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE spheromak; boronization; impurity radiation; conditioning; power balance ID BORONIZATION; CONFINEMENT AB We report here results from power balance measurements for ohmically heated plasmas in the sustained spheromak physics experiment. The plasma is formed inside a close-fitting tungsten-coated copper shell; wall conditioning by baking, glow discharge cleaning (GDC), Ti gettering, and helium shot conditioning produces clean plasmas (Z(eff) < 2.5) and reduces impurity radiation to a small fraction of the input energy, except when the molybdenum divertor plate has been overheated. We find that most of the input energy is lost by conduction to the walls (the divertor plate and the inner electrode in the coaxial source region). Recently, carborane was added during GDC to boronize the plasma-facing surfaces, but little benefit was obtained. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Hill, DN (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 14 TC 3 Z9 3 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 941 EP 946 AR PII S0022-3115(02)01391-0 DI 10.1016/S0022-3115(02)01391-0 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700169 ER PT J AU Loarte, A Saibene, G Sartori, R Becoulet, M Horton, L Eich, T Herrmann, A Laux, M Matthews, G Jachmich, S Asakura, N Chankin, A Leonard, A Porter, G Federici, G Shimada, M Sugihara, M Janeschitz, G AF Loarte, A Saibene, G Sartori, R Becoulet, M Horton, L Eich, T Herrmann, A Laux, M Matthews, G Jachmich, S Asakura, N Chankin, A Leonard, A Porter, G Federici, G Shimada, M Sugihara, M Janeschitz, G TI ELM energy and particle losses and their extrapolation to burning plasma experiments SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE edge pedestal; ELMs; ELM gamma; H-mode; ITER; plasma-wall interactions; divertor power load ID MODES AB Analysis of Type I ELMs from present experiments shows that ELM energy losses decrease with increasing pedestal plasma collionality (nu(ped)*) and/or increasing tau(parallel to)(Front), where (tau(parallel to)(Front) = 2piRq(95)/C-s ped) is the typical ion transport time from the pedestal to the divertor target. nu(ped)* and T-parallel to(Front) are not the only parameters that affect the ELMs, also the edge magnetic shear influences the plasma volume affected by the ELMs. ELM particle losses are influenced by this ELM affected volume and are weakly dependent on other pedestal plasma parameters. 'Minimum' Type I ELMs, with energy losses acceptable for ITER, where there is no change in the plasma temperature profile during the ELM, are observed for some conditions in JET and DIII-D. The duration of the divertor ELM power pulse is well correlated with T-parallel to(Front) and not with the duration of the ELM-associated MHD activity. Similarly, the time scale of ELM particle fluxes is also determined by tau(parallel to)(Front). The extrapolation of present experimental results to ITER is summarised. (C) 2003 A. Loarte. Published by Elsevier Science B.V. All rights reserved. C1 Max Planck Inst Plasma Phys, European Fus Dev Agreement, EFDA CSU Garching, D-85748 Garching, Germany. CEA Cadarache, EURATOM Assoc, DRFC, F-13108 St Paul Les Durance, France. Max Planck Inst Plasma Phys, EURATOM Assoc, D-85748 Garching, Germany. UKAEA Euratom Fus Assoc, Culham Lab, Abingdon OX14 3DB, Oxon, England. Assoc Euratom Belgian State, Ecole Royale Mil, B-1000 Brussels, Belgium. Japan Atom Energy Res Inst, Naka, Ibaraki 31101, Japan. Gen Atom Co, San Diego, CA 92186 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Max Planck Inst Plasma Phys, ITER IT, D-85748 Garching, Germany. Japan Atom Energy Res Inst, ITER IT, Naka Working Site, Naka, Ibaraki 31101, Japan. Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany. RP Loarte, A (reprint author), Max Planck Inst Plasma Phys, European Fus Dev Agreement, EFDA CSU Garching, Boltzmannstr 2, D-85748 Garching, Germany. NR 10 TC 76 Z9 76 U1 1 U2 6 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 MAR PY 2003 VL 313 BP 962 EP 966 AR PII S0022-3115(02)01398-3 DI 10.1016/S0022-3115(02)01398-3 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700173 ER PT J AU Rognlien, TD Shimada, M AF Rognlien, TD Shimada, M TI E x B-drift, current, and kinetic effects on divertor plasma profiles during ELMs SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE divertor plasma modeling; edge-localized modes (ELMs); 2D edge-plasma transport; E x B drifts; plasma edge current ID TOKAMAK AB The transient heat load on divertor surfaces from edge-localized modes (ELMs) in tokamaks can be very large and thus of concern for a large device such as ITER. Models for kinetic modifications to fluid models are discussed that should allow a reasonable description of the long mean-free path regime encountered owing to the high plasma temperatures in the scrape-off layer (SOL) during large ELMs. A set of two-dimensional simulations of the dynamic response of the SOL plasma to an ELM is presented. The role of plasma currents and E x B motion is emphasized, which cause large changes in divertor density and temperature, but small changes in the outer-plate heat flux. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. ITER Int Team, ITER Naka Co Ctr, Naka, Ibaraki 3110193, Japan. RP Rognlien, TD (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. NR 13 TC 6 Z9 6 U1 1 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 MAR PY 2003 VL 313 BP 1000 EP 1004 AR PII S0022-3115(02)01438-1 DI 10.1016/S0022-3115(02)01438-1 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700181 ER PT J AU Maingi, R Kugel, HW Lasnier, CJ Roquemore, AL Soukhanovskii, VA Bush, CE AF Maingi, R Kugel, HW Lasnier, CJ Roquemore, AL Soukhanovskii, VA Bush, CE CA NSTX Team TI Heat flux scaling experiments in NSTX SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma-wall interactions; divertor; boundary plasmas; heat flux; power balance; infrared thermogrpaphy ID EDGE PLASMA; TOKAMAK; DISCHARGES AB We report the first results of heat flux scaling experiments in National Spherical Torus Experiment (NSTX). We find that the peak heat flux observed in the outer divertor was similar to6 MW/m(2) at 5 MW heating power in lower-single-null diverted configuration. The peak heat flux was observed to increase with heating power, and the highest heat fluxes had narrow profile widths. The peak heat flux is lower than predicted by early 2-D edge transport conservative design calculations. However, the total power flow to the divertor is only 15-30% of the input power, suggesting other processes reduce the available open field line power which can be conducted and convected to the target. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Maingi, R (reprint author), Oak Ridge Natl Lab, POB 2009, Oak Ridge, TN 37831 USA. NR 12 TC 7 Z9 7 U1 1 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 MAR PY 2003 VL 313 BP 1005 EP 1009 AR PII S0022-3115(02)01441-1 DI 10.1016/S0022-3115(02)01441-1 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700182 ER PT J AU Riemann, J Borchardt, M Schneider, R Bonnin, X Mutzke, A Rognlien, T AF Riemann, J Borchardt, M Schneider, R Bonnin, X Mutzke, A Rognlien, T TI Hierarchy tests of edge transport models (BoRiS, UEDGE) SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE SOL transport modelling; 3D modelling; magnetic fusion edge plasmas; BoRiS code; UEDGE code; B2-Eirene code ID FLUID CODE; PLASMA AB BoRiS is a 3D scrape-off layer (SOL) transport code under development to solve a system of plasma fluid equations. Using a simplified SOL model including particle continuity, parallel momentum and energy equations for both electrons and ions, BoRiS is tested in different geometries. To verify its proper operation in 1D and 2D cases, BoRiS solutions are compared to the results obtained with the established UEDGE code. In addition to these benchmarks some results for 3D problems are obtained. (C) 2003 Elsevier Science B.V. All rights reserved. C1 EURATOM, Max Planck Inst Plasmaphys, Teilinst Greifswald, D-17491 Greifswald, Germany. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Riemann, J (reprint author), EURATOM, Max Planck Inst Plasmaphys, Teilinst Greifswald, Wendelsteinerstr, D-17491 Greifswald, Germany. OI Bonnin, Xavier/0000-0002-6743-1062 NR 6 TC 6 Z9 6 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 MAR PY 2003 VL 313 BP 1030 EP 1035 AR PII S0022-3115(02)01504-0 DI 10.1016/S0022-3115(02)01504-0 PG 6 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700187 ER PT J AU Hillis, DL Loarer, T Bucalossi, J Pospieszczyk, A Fundamenski, W Matthews, G Meigs, A Morgan, P Phillips, V Pitts, R Stamp, M von Hellermann, M AF Hillis, DL Loarer, T Bucalossi, J Pospieszczyk, A Fundamenski, W Matthews, G Meigs, A Morgan, P Phillips, V Pitts, R Stamp, M von Hellermann, M CA EFDA JET workprogramme contributor TI Deuterium to helium plasma-wall change-over experiments in the JET MkII-gas box divertor SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE JET; helium; deuterium; divertor; retention; pumping ID TRITIUM AB The deuterium and helium dynamics in the plasma and subdivertor regions of JET are compared during a sequence of similar ohmic and ICRH pulses where 100% He gas is injected into the JET vacuum vessel, whose graphite walls were previously saturated with deuterium. After the first six He fueled change-over discharges, only He plasma operation was performed. Following this investigation, the situation is reversed and the change-over from an initially saturated He wall is investigated when only D-2 plasma fuelling is used. The He concentration is measured in the subdivertor with a species selective Penning gauge. Comparison of the time dependence of the divertor concentrations with those at the edge and strike point shows significant differences during the first six discharges. This difference along with a global He particle balance is used to assess the status of the wall saturation over the initial 6-7 He change-over discharges. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37831 USA. EURATOM, CEA Cadarache, St Paul Les Durance, France. EURATOM, IPP, Forschungszentrum Juelich, D-52425 Julich, Germany. EURATOM, UKAEA Fus Assoc, Abingdon OX14 3EA, Oxon, England. EURATOM, EPFL, CRPP, CH-1015 Lausanne, Switzerland. EURATOM, FOM, IVP, NL-3430 BE Nieuwegein, Netherlands. RP Hillis, DL (reprint author), Oak Ridge Natl Lab, Div Fus Energy, Bldg 9201-2,MS-8072,POB 2009, Oak Ridge, TN 37831 USA. NR 5 TC 5 Z9 5 U1 1 U2 2 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 MAR PY 2003 VL 313 BP 1061 EP 1065 AR PII S0022-3115(02)01538-6 DI 10.1016/S0022-3115(02)01538-6 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700193 ER PT J AU Stotler, DP LaBombard, B Terry, JL Zweben, SJ AF Stotler, DP LaBombard, B Terry, JL Zweben, SJ TI Neutral transport simulations of gas puff imaging experiments SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE turbulence; neutral gas modeling; DEGAS code ID C-MOD TOKAMAK; TURBULENCE AB Visible imaging of gas puffs has been used on the Alcator C-Mod tokamak to characterize edge plasma turbulence, yielding data that can be compared with plasma turbulence codes. Simulations of these experiments with the DEGAS 2 Monte Carlo neutral transport code have been carried out to explore the relationship between the plasma fluctuations and the observed light emission. By imposing two-dimensional modulations on the measured time-average plasma density and temperature profiles, we demonstrate that the spatial structure of the emission cloud reflects that of the underlying turbulence. However, the photon emission rate depends on the plasma density and temperature in a complicated way, and no simple scheme for inferring the plasma parameters directly from the light emission patterns is apparent. The simulations indicate that excited atoms generated by molecular dissociation are a significant source of photons, further complicating interpretation of the gas puff imaging results. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. MIT, Plasma Sci & Fus Ctr, Cambridge, MA 02139 USA. RP Stotler, DP (reprint author), Princeton Univ, Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RI Stotler, Daren/J-9494-2015 OI Stotler, Daren/0000-0001-5521-8718 NR 12 TC 34 Z9 34 U1 0 U2 5 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 MAR PY 2003 VL 313 BP 1066 EP 1070 AR PII S0022-3115(02)01495-2 DI 10.1016/S0022-3115(02)01495-2 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700194 ER PT J AU Groth, M Fenstermacher, ME Boedo, JA Brooks, NH Gray, DS Lasnier, CJ Leonard, AW Porter, GD Watkins, JG AF Groth, M Fenstermacher, ME Boedo, JA Brooks, NH Gray, DS Lasnier, CJ Leonard, AW Porter, GD Watkins, JG TI High time-resolved, 2D imaging of type-I ELMs in DIII-D using a image-intensified CID camera SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE divertor; plasma imaging; ELM evolution; line emission profiles ID D DIVERTOR; D TOKAMAK; DENSITY AB The evolution of 2D emission profiles of D-alpha and C III during type-I edge localised modes (ELMs) has been investigated in DIII-D using a tangentially viewing gated, intensified charge-injected device (CID) camera. The measured CIII emission profiles indicate transient inner leg attachment with the arrival of the ELM heat pulse. The measured D-alpha emission profiles during an ELM cycle show enhanced deuterium recycling during the deposition of the ELM particle pulse at the target, which suggests the detachment of the divertor plasma from the target plates. Measurements taken in ELMy H-mode discharges at densities of 50% and 90% of the Greenwald density limit are compared utilising the CID camera system and a comprehensive set of other divertor diagnostics. An ELM models based on fluid and PIC simulations are used to discuss the observation on the response of the divertor plasma to the ELM heat and particle pulse. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Gen Atom Co, San Diego, CA 92186 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Groth, M (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. RI Groth, Mathias/G-2227-2013 NR 16 TC 12 Z9 12 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 MAR PY 2003 VL 313 BP 1071 EP 1075 AR PII S0022-3115(02)01539-8 DI 10.1016/S0022-3115(02)01539-8 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700195 ER PT J AU Pigarov, AY Krasheninnikov, SI West, WP Rognlien, TD Boedo, JA Whyte, DG Lasnier, CJ Petrie, TW Schaffer, MJ Watkins, JG AF Pigarov, AY Krasheninnikov, SI West, WP Rognlien, TD Boedo, JA Whyte, DG Lasnier, CJ Petrie, TW Schaffer, MJ Watkins, JG TI DIII-D edge plasma simulations with UEDGE code including non-diffusive anomalous cross-field transport SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE anomalous convection; non-diffusive transport; edge plasma; UEDGE code ID SCRAPE-OFF-LAYER; ALCATOR C-MOD; TOKAMAK; PARTICLE AB Recently, both Alcator C-Mod and DIII-D tokamaks observed fast anomalous cross-field plasma transport in the SOL. These observations supported by theoretical studies have indicated that such transport is essentially non-diffusive and intermittent. We present the results of macroscopic plasma simulations with the UEDGE transport code including anomalous cross-field outward-directed convection for a series of low-power DIII-D shots. Our analysis of experimental and simulation data supports the view that non-diffusive transport is important for the entire edge plasma behavior in both L- and H-mode discharges. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA. Gen Atom Co, San Diego, CA 92186 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Pigarov, AY (reprint author), Univ Calif San Diego, Energy Res Ctr, La Jolla, CA 92093 USA. NR 7 TC 18 Z9 18 U1 0 U2 0 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 MAR PY 2003 VL 313 BP 1076 EP 1080 AR PII S0022-3115(02)01540-4 DI 10.1016/S0022-3115(02)01540-4 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700196 ER PT J AU Porter, GD Rognlien, TD Rensink, ME Loarte, A Asakura, N Takenaga, H Matthews, G AF Porter, GD Rognlien, TD Rensink, ME Loarte, A Asakura, N Takenaga, H Matthews, G TI Simulation of the effect of plasma flows in DIII-D, JET, and JT-60U SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE boundary plasma; UEDGE code; plasma flow; carbon; plasma-wall interaction ID ELECTRIC-FIELD; SEPARATRIX; PROFILES AB The results of 2D fluid plasma simulations of the ion flow in the boundary plasma of DIII-D, JET, and JT-60U are reported. The model includes the effects of drifts and of impurity radiation using a multi-species model of intrinsic carbon impurities. Drift effects are important in determining the primary and impurity ion fluxes in the SOL and the private region, with E x B drifts dominant. Simulated parallel velocities are consistent with experimental measurement on the high field side of JT-60U, where the parallel flow is determined by ion sources. Simulated parallel velocities are significantly less than seen in experiment at the outer midplane of JT-60U, and at the top of JET where the flow is sensitive to poloidal variations of the turbulence driven transport, suggesting the velocity in these regions is determined by transport. Parallel flows are reversed by changing the direction of the ion delB drift relative to the X-point. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. Max Planck Inst Plasma Phys, CSU, EFDA, D-85748 Garching, Germany. Japan Atom Energy Res Inst, Naka, Ibaraki 31101, Japan. UKAEA Euratom Fus Assoc, Abingdon OX14 3DB, Oxon, England. RP Porter, GD (reprint author), Lawrence Livermore Natl Lab, POB 808,L-637, Livermore, CA 94550 USA. NR 7 TC 22 Z9 22 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 1085 EP 1088 AR PII S0022-3115(02)01542-8 DI 10.1016/S0022-3115(02)01542-8 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700198 ER PT J AU Kubo, H Sakurai, S Higashijima, S Takenaga, H Itami, K Konoshima, S Nakona, T Koide, Y Asakura, N Shimizu, K Fujita, T Hill, KW AF Kubo, H Sakurai, S Higashijima, S Takenaga, H Itami, K Konoshima, S Nakona, T Koide, Y Asakura, N Shimizu, K Fujita, T Hill, KW TI Radiation enhancement and impurity behavior in JT-60U reversed shear discharges SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE reversed shear plasma; impurity injection; impurity transport; JT-60U; internal transport barrier; radiation losses ID INSTITUTE TOKAMAK-60 UPGRADE; HIGH-PERFORMANCE; NEOCLASSICAL TRANSPORT; PARTICLE CONTROL; CONFINEMENT; PLASMAS AB In order to extend the high-confinement reversed shear regime with an internal transport barrier (ITB) toward high radiation loss power, Ne and Ar injection have been investigated in JT-60U. With Ne injection, high confinement (H-89PL > 2.4, HH98(y.2) > 1.6) and high radiation loss power fraction (> 80%) were simultaneously obtained at high density (> 0.7n(GW)). The radiation loss power was enhanced both in the main plasma and in the divertor plasma. With divertor plasma detachment and an X-point MARFE, the ITB was pronounced and the H-89PL factor reached 1.8. However, Ar injection resulted in excessive radiation loss enhancement inside the ITB. The Ne and the C density profile were similar to the electron density profile, and their accumulation was not significant. On the other hand, Ar showed accumulation inside the ITB. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Japan Atom Energy Res Inst, Naka, Ibaraki 3110193, Japan. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Japan Atom Energy Res Inst, Naka, Ibaraki 3110193, Japan. EM kubo@naka.jaeri.go.jp NR 14 TC 13 Z9 13 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 1197 EP 1201 AR PII S0022-3115(02)01531-3 DI 10.1016/S0022-3115(02)01531-3 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700218 ER PT J AU Fenstermacher, ME Lawson, KD Porter, GD Erents, SK Ingesson, C Matthews, GF McCracken, GM Philipps, V Pitts, RA Stamp, MF AF Fenstermacher, ME Lawson, KD Porter, GD Erents, SK Ingesson, C Matthews, GF McCracken, GM Philipps, V Pitts, RA Stamp, MF TI Comparison of carbon and main ion radiation profiles in matched helium and deuterium plasmas in JET SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE carbon impurities; helium plasma; diverted tokamak; plasma properties; fluid modeling; carbon sputtering sources ID TRANSPORT SIMULATIONS AB This paper examines the radiation profiles and corresponding ionization source profiles of carbon and main plasma ions in matched helium and deuterium. L-mode plasmas in JET. The radiation intensities from C1+, C2+ and C3+ in the helium plasmas showed reduction by factors of 8, 10 and 25, respectively along the inner SOL and divertor leg compared with the deuterium cases. However, the emission in the outer divertor leg was less than a factor of 2 lower in helium. Using photon efficiencies calculated by the UEDGE code for the spectrometer lines of sight, the calculated source rates of C1+ and C3+ along the inner SOL and inner divertor were reduced by factors of 4 and 20, respectively in the helium plasmas. In the outer divertor leg the source rate of C3+ was reduced by a factor of 10 but the C1+ source rate did not change in helium. These measurements are consistent with a model that chemical sputtering of carbon dominates the source from the inner wall and inner divertor in deuterium L-mode plasmas while physical sputtering appears to dominate the source from the outer divertor. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Ecole Polytech Fed Lausanne, CRPP, Assoc Euratom Confederat Suisse, CH-1015 Lausanne, Switzerland. Forschungszentrum Julich, EURATOM Assoc, D-52425 Julich, Germany. EURATOM, FOM, Inst Plasmafys Rijnhuizen, NL-3430 BE Nieuwegein, Netherlands. UKAEA, JET, EFDA, Culham Sci Ctr, Abingdon OX14 3EA, Oxon, England. Lawrence Livermore Natl Lab, Natl Fus Facil D3 D, Livermore, CA 94550 USA. RP Gen Atom Co, POB 86508, San Diego, CA 92186 USA. EM max.fenstermacher@gat.com NR 8 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 1206 EP 1210 AR PII S0022-3115(02)01532-5 DI 10.1016/S0022-3115(02)01532-5 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700220 ER PT J AU West, WP Lasnier, CJ Whyte, DG Isler, RC Evans, TE Jacksons, GL Rudakov, D Wade, MR Strachan, J AF West, WP Lasnier, CJ Whyte, DG Isler, RC Evans, TE Jacksons, GL Rudakov, D Wade, MR Strachan, J TI Methane penetration in DIII-D ELMing H-mode plasmas SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE tokamak impurity sources; carbon contamination; impurity transport; chemical sputtering ID EDGE PLASMA; TRANSPORT AB Carbon penetration into the core plasma during midplane and divertor methane puffing has been measured for DIII-D ELMing H-mode plasmas. The methane puffs are adjusted to a measurable signal, but global plasma parameters are only weakly affected (line average density, increases by < 10%, energy confinement time, tau(E), drops by < 10%). The total carbon content is derived from C6+ density profiles in the core measured as a function of time using charge exchange recombination spectroscopy. The methane penetration factor is defined as the difference in the core content with the puff on and puff off, divided by the carbon confinement time and the methane puffing rate. In ELMing H-mode discharges with ion delB drift direction into the X-point, increasing the line averaged density from 5 to 8 x 10(19) m(-3) dropped the penetration factor from 6.6% to 4.6% for main chamber puffing. The penetration factor for divertor puffing was below the detection limit (< 1%). Changing the ion delB drift to away from the X-point decreased the penteration factor by more than a factor of five for main chamber puffing. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Gen Atom Co, San Diego, CA 92186 USA. Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP West, WP (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA. OI Isler, Ralph/0000-0002-5368-7200 NR 9 TC 9 Z9 9 U1 1 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 MAR PY 2003 VL 313 BP 1211 EP 1215 AR PII S0022-3115(02)01517-9 DI 10.1016/S0022-3115(02)01517-9 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700221 ER PT J AU Hogan, J Colchin, R Coster, D Baylor, L Fenstermacher, M Groth, M Wade, M AF Hogan, J Colchin, R Coster, D Baylor, L Fenstermacher, M Groth, M Wade, M TI Modeling of ELM events and their effect on impurity enrichment SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma-wall interactions; divertor; boundary plasma; neon; recycling; B2-EIRENE code ID ASDEX-UPGRADE; DIVERTOR; PLASMAS AB Modeling of transient impurity transport during large ELMs is used to explore basic processes which may determine ELM-averaged enrichment. The b2-Eirene code (solps4), used for DIII-D geometry, suggests that a complex sequence can occur during an ELM cycle in which a transiently detached phase, with relatively low enrichment, can occur even under nominally attached conditions. A slower recovery phase then follows, in which the effect of induced scrape-off layer flows can increase in importance. The model results are compared with available fast time-scale measurements. The observed increased enrichment with higher Z is similar to trends in basic particle reflection properties. Neon recycling processes may thus introduce a significant history effect, as illustrated by analysis of continuous, unforced neon accumulation in a DIII-D discharge with a well-characterized operational history. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37830 USA. Max Planck Inst Plasma Phys, D-85748 Garching, Germany. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Hogan, J (reprint author), Oak Ridge Natl Lab, Div Fus Energy, Oak Ridge, TN 37830 USA. RI Groth, Mathias/G-2227-2013; Coster, David/B-4311-2010 OI Coster, David/0000-0002-2470-9706 NR 17 TC 0 Z9 0 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 1221 EP 1228 AR PII S0022-3115(02)01520-9 DI 10.1016/S0022-3115(02)01520-9 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700223 ER PT J AU Whyte, DG Jernigan, TC Humphreys, DA Hyatt, AW Lasnier, CJ Parks, PB Evans, TE Taylor, PL Kellman, AG Gray, DS Hollmann, EM AF Whyte, DG Jernigan, TC Humphreys, DA Hyatt, AW Lasnier, CJ Parks, PB Evans, TE Taylor, PL Kellman, AG Gray, DS Hollmann, EM TI Disruption mitigation with high-pressure noble gas injection SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE disruption; plasma-facing components; burning plasmas; halo currents; runaway electrons ID RUNAWAY ELECTRONS; DIII-D; GENERATION; AVALANCHE; TOKAMAK; QUENCH; PLASMA; PELLET; JT-60U AB High-pressure gas jets of neon and argon are used to mitigate the three principal damaging effects of tokamak disruptions: thermal loading of the divertor surfaces, vessel stress from poloidal halo currents and the buildup and loss of relativistic electrons to the wall. The gas jet penetrates as a neutral species through to the central plasma at its sonic velocity. The injected gas atoms increase up to 500 times the total electron inventory in the plasma volume, resulting in a relatively benign radiative dissipation of >95% of the plasma stored energy. The rapid cooling and the slow movement of the plasma to the wall reduce poloidal halo currents during the current decay. The thermally collapsed plasma is very cold (similar to1-2 eV) and the impurity charge distribution can include >50% fraction neutral species. If a sufficient quantity of gas is injected, the neutrals inhibit runaway electrons. A physical model of radiative cooling is developed and validated against DIII-D experiments. The model shows that gas jet mitigation, including runaway suppression, extrapolates favorably to burning plasmas where disruption damage will be more severe. Initial results of real-time disruption detection triggering gas jet injection for mitigation are shown. (C) 2003 Published by Elsevier Science B.V. C1 Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Gen Atom Co, San Diego, CA 92186 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Whyte, DG (reprint author), Univ Calif San Diego, 9500 Gilman Dr, La Jolla, CA 92093 USA. NR 14 TC 53 Z9 53 U1 0 U2 2 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 MAR PY 2003 VL 313 BP 1239 EP 1246 DI 10.1016/S0022-3115(02)01525-8 PG 8 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700226 ER PT J AU Watkins, JG Petrie, TW Lasnier, CJ Allen, SL Fenstermacher, ME Luce, TC Mahdavi, MA Maingi, R Owen, LW Rensink, ME Wade, MR AF Watkins, JG Petrie, TW Lasnier, CJ Allen, SL Fenstermacher, ME Luce, TC Mahdavi, MA Maingi, R Owen, LW Rensink, ME Wade, MR TI Effect of plasma shape on particle flux and particle removal in DIII-D SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE magnetic balance; double-null; tokamak; Langmuir probes; particle flux; recycling ID MAGNETIC SHEAR DISCHARGES; D DIVERTOR; TOKAMAK AB Measurements from balanced or slightly unbalanced, double-null, ELMing H-mode plasmas show that the upper, more closed, divertor strike point particle fluxes are larger than the lower, more open, divertor strike point particle fluxes for comparable conditions. Comparison of the upper and lower outer strike, point peak particle fluxes measured with Langmuir probes during scans of the magnetic balance shows an. asymmetry around the magnetic balance point which is consistent with both the enhanced upper recycling and the expected direction of private region E x B drifts. Comparison of the inner and outer peak particle fluxes in the upper divertor shows a dependence on magnetic field direction that is also consistent with the private region E x B drift direction. (C) 2003 Published by Elsevier Science B.V. C1 Sandia Natl Labs, Gen Atom 13 350, San Diego, CA 92186 USA. Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Watkins, JG (reprint author), Sandia Natl Labs, Gen Atom 13 350, POB 85608, San Diego, CA 92186 USA. NR 10 TC 0 Z9 0 U1 1 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 MAR PY 2003 VL 313 BP 1258 EP 1261 AR PII S0022-3115(02)01529-5 DI 10.1016/S0022-3115(02)01529-5 PG 4 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700229 ER PT J AU Mioduszewski, P Grossman, A Fenstermacher, M Koniges, A Owen, L Rognlien, T Umansky, M AF Mioduszewski, P Grossman, A Fenstermacher, M Koniges, A Owen, L Rognlien, T Umansky, M TI Plasma boundary considerations for the national compact stellarator experiment SO JOURNAL OF NUCLEAR MATERIALS LA English DT Article; Proceedings Paper CT 15th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI-15) CY MAY 26-31, 2002 CL GIFU, JAPAN DE plasma boundary; divertors; compact stellarators; stochastic fields AB The national compact stellarator experiment (NCSX) [EPS 2001, Madeira, Portugal, 18-22 June 2001] is a new fusion project located at Princeton Plasma Physics Laboratory, Princeton, NJ. Plasma boundary control in stellarators has been shown to be very effective in improving plasma performance [EPS 2001, Madeira, Portugal, 18-22 June 2001] and, accordingly, will be an important element from the very beginning of the NCSX design. Plasma-facing components will be developed systematically according to our understanding of the NCSX boundary, with the eventual goal to develop a divertor with all the benefits for impurity and neutrals control. Neutrals calculations have been started to investigate the effect of neutrals penetration at various cross-sections. (C) 2003 Elsevier Science B.V. All rights reserved. C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. Univ Calif San Diego, La Jolla, CA 92093 USA. Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Oak Ridge Natl Lab, POB 2009, Oak Ridge, TN 37831 USA. EM mioduszewspk@ornl.gov NR 9 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-3115 EI 1873-4820 J9 J NUCL MATER JI J. Nucl. Mater. PD MAR PY 2003 VL 313 BP 1304 EP 1308 AR PII S0022-3115(02)01505-2 DI 10.1016/S0022-3115(02)01505-2 PG 5 WC Materials Science, Multidisciplinary; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA 665XN UT WOS:000182146700238 ER PT J AU Wiseman, GA Kornmehl, E Leigh, B Erwin, WD Podoloff, DA Spies, S Sparks, RB Stabin, MG Witzig, T White, CA AF Wiseman, GA Kornmehl, E Leigh, B Erwin, WD Podoloff, DA Spies, S Sparks, RB Stabin, MG Witzig, T White, CA TI Radiation dosimetry results and safety correlations from Y-90-ibritumomab tiuxetan radioimmunotherapy for relapsed or refractory non-Hodgkin's lymphoma: Combined data from 4 clinical trials SO JOURNAL OF NUCLEAR MEDICINE LA English DT Article DE dosimetry; radioimmunotherapy; Y-90-ibritumomab tiuxetan; rituximab ID BONE-MARROW DOSIMETRY; IDEC-Y2B8 RADIOIMMUNOTHERAPY; IBRITUMOMAB TIUXETAN; ANTIBODIES AB Ibritumomab tiuxetan is an ant-CD20 murine IgG1 K monoclonal antibody (ibritumomab) conjugated to the linker-chelator tiuxetan, which securely chelates In-111 for imaging or dosimetry and Y-90 for radioimmunotherapy (RIT). Dosimetry and pharmacokinetic data from 4 clinical trials of Y-90-ibritumomab tiuxetan RIT for relapsed or refractory B-cell non-Hodgkin's lymphoma (NHL) were combined and assessed for correlations with toxicity data. Methods: Data from 17 patients were available for analysis. Common eligibility criteria included <25% bone marrow involvement by NHL, no prior myeloablative therapy, and no prior RIT. The baseline platelet count was required to be greater than or equal to100,000 cells/mm(3) for the reduced Y-90-ibritumomab tiuxetan administered dose (7.4-11 MBq/kg [0.2-0.3 mCi/kg]) or greater than or equal to150,000 cells/mm3 for the standard Y-90-ibritumomab tiuxetan administered dose (15 MBq/kg [0.4 mCi/kg]). Patients were given a tracer administered dose of 185 MBq (5 mCi) In-111-ibritumomab tiuxetan on day 0, evaluated with dosimetry, and then a therapeutic administered dos of 7.4-15 MBq/kg (0.20.4 mCi/kg) Y-90-ibritumomab tiuxetan on day 7. Both ibritumomab tiuxetan administered doses were preceded by an infusion of 250 mg/m(2) rituximab to clear peripheral B-cells and improve ibritumomab tiuxetan biodistribution. Residence times for Y-90 in blood and major organs were estimated from In-111 biodistribution, and the MIRDOSE3 computer software program was used, with modifications to account for patient-specific organ masses, to calculate radiation absorbed doses to organs and red marrow. Results: Median radiation absorbed doses for Y-90 were 7.42 Gy to spleen, 4.50 Gy to liver, 2.11 Gy to lung, 0.23 Gy to kidney, 0.62 Gy (blood-derived method) and 0.97 Gy (sacral image-derived method) to red marrow, and 0.57 Gy to total body. The median effective blood half-life was 27 h, and the area under the curve (AUC) was 25 h. No patient failed to meet protocol-defined dosimetry safety criteria and all patients were eligible for treatment. Observed toxicity was primarily hematologic, transient, and reversible. Hematologic toxicity did not correlate with estimates of red marrow radiation absorbed dose, total-body radiation absorbed dose, blood-effective half-life, or blood AUC. Conclusion: Relapsed or refractory NHL in patients with adequate bone marrow reserve and <25% bone marrow involvement by NHL can be treated safely with Y-90-ibritumomab tiuxetan RIT on the basis of a fixed, weight-adjusted dosing schedule. Dosimetry and pharmacokinetic results do not correlate with toxicity. C1 Mayo Clin & Mayo Fdn, Dept Internal Med, Div Hematol, Rochester, MN 55905 USA. Vanderbilt Univ, Nashville, TN USA. Oak Ridge Associated Univ, Knoxville, TN USA. MD Anderson Canc Ctr, Dept Nucl Med, Houston, TX USA. Northwestern Univ, Dept Nucl Med, Chicago, IL 60611 USA. IDEC Pharmaceut Corp, San Diego, CA USA. Harvard Univ, Sch Med, Beth Israel Deaconess Med Ctr, Boston, MA USA. Harvard Univ, Sch Med, Dana Farber Canc Inst, Brigham & Womens Hosp,Dept Radiat Oncol, Boston, MA 02115 USA. Mayo Clin & Mayo Fdn, Dept Radiol, Rochester, MN 55905 USA. RP Wiseman, GA (reprint author), Mayo Clin, Dept Diagnost Radiol, 200 1st St SW, Rochester, MN 55905 USA. NR 21 TC 144 Z9 148 U1 1 U2 1 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 MAR PY 2003 VL 44 IS 3 BP 465 EP 474 PG 10 WC Radiology, Nuclear Medicine & Medical Imaging SC Radiology, Nuclear Medicine & Medical Imaging GA 653QF UT WOS:000181447700028 PM 12621016 ER PT J AU Rogers, JD AF Rogers, JD TI Untitled SO JOURNAL OF PETROLEUM TECHNOLOGY LA English DT Editorial Material C1 US DOE, NETL, Washington, DC 20585 USA. RP Rogers, JD (reprint author), US DOE, NETL, Washington, DC 20585 USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SOC PETROLEUM ENG PI RICHARDSON PA 222 PALISADES CREEK DR,, RICHARDSON, TX 75080 USA SN 0149-2136 J9 J PETROL TECHNOL JI J. Pet. Technol. PD MAR PY 2003 VL 55 IS 3 BP 58 EP 58 PG 1 WC Energy & Fuels; Engineering, Chemical; Engineering, Petroleum; Geosciences, Multidisciplinary SC Energy & Fuels; Engineering; Geology GA 652DH UT WOS:000181364300012 ER PT J AU Treguier, AM Hogg, NG Maltrud, M Speer, K Thierry, V AF Treguier, AM Hogg, NG Maltrud, M Speer, K Thierry, V TI The origin of deep zonal flows in the Brazil Basin SO JOURNAL OF PHYSICAL OCEANOGRAPHY LA English DT Article ID BOTTOM WATER; CIRCULATION; ATLANTIC; OCEAN; VARIABILITY; MODEL; TRANSPORT; CURRENTS; PACIFIC AB Recent data from a deployment of Lagrangian floats in the Brazil Basin of the South Atlantic reveal a swift western boundary current and predominantly zonal flow in the interior at a depth of about 2500 m. Dynamical mechanisms for the deep interior flow are considered using two high-resolution models, a global and a regional one, together with a suite of sensitivity studies at low resolution. Outside the western boundary region, model energy levels are similar to observations. The models are able to reproduce, at somewhat reduced strength depending on resolution, much of the meridional structure of the observed deep zonal flows. Several candidates for generating such flows are examined, including nonlinear rectification, baroclinic instability, and thermohaline and wind forcing. A primary mechanism for the deep flow in the models is the response to the wind stress, as recently argued to be the case for a model of the Pacific Ocean. However, thermohaline forcing is significant, especially where density contrasts between basins generate strong currents in deep passages. The deep thermohaline flow appears to be linked to the depth of the midocean ridge. Baroclinic instability of the mean meridional flow, which is alone capable of generating nearly zonal currents of the observed scale, is a possible additional forcing but is not essential in the models investigated here. The meridional scale of the zonal flows in the models is extremely dependent on the horizontal resolution and horizontal mixing. C1 IFREMER, CNRS, Lab Phys Oxeans, UBO, F-29280 Plouzane, France. Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA. Los Alamos Natl Lab, Los Alamos, NM USA. Florida State Univ, Tallahassee, FL 32306 USA. Scripps Inst Oceanog, San Diego, CA USA. RP Treguier, AM (reprint author), IFREMER, CNRS, Lab Phys Oxeans, UBO, BP70, F-29280 Plouzane, France. RI Treguier, Anne Marie/B-7497-2009; Thierry, Virginie/M-3086-2015 OI Treguier, Anne Marie/0000-0003-4569-845X; Thierry, Virginie/0000-0003-1602-6478 NR 30 TC 31 Z9 31 U1 1 U2 5 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 USA SN 0022-3670 J9 J PHYS OCEANOGR JI J. Phys. Oceanogr. PD MAR PY 2003 VL 33 IS 3 BP 580 EP 599 DI 10.1175/1520-0485(2003)033<0580:TOODZF>2.0.CO;2 PG 20 WC Oceanography SC Oceanography GA 647KX UT WOS:000181092900006 ER PT J AU Schramm, S Zschiesche, D AF Schramm, S Zschiesche, D TI Rotating neutron stars in a chiral SU(3) model SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Article ID NUCLEI; PULSAR AB We study the properties of rotating neutron stars within a generalized chiral SU(3)-flavour model. The influence of the rotation on the inner structure and the hyperon matter content of the star is discussed. We calculate the Kepler frequency and moments of inertia of the neutron star sequences. An estimate for the braking index of the associated pulsars is given. C1 Argonne Natl Lab, Argonne, IL 60439 USA. Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany. RP Schramm, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. NR 19 TC 14 Z9 15 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 0954-3899 J9 J PHYS G NUCL PARTIC JI J. Phys. G-Nucl. Part. Phys. PD MAR PY 2003 VL 29 IS 3 BP 531 EP 542 AR PII S0954-3899(03)55428-7 DI 10.1088/0954-3899/29/3/307 PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 661BM UT WOS:000181871400011 ER PT J AU Sargsian, MM Arrington, J Bertozzi, W Boeglin, W Carlson, CE Day, DB Frankfurt, LL Egiyan, K Ent, R Gilad, S Griffioen, K Higinbotham, DW Kuhn, S Melnitchouk, W Miller, GA Piasetzky, E Stepanyan, S Strikman, MI Weinstein, LB AF Sargsian, MM Arrington, J Bertozzi, W Boeglin, W Carlson, CE Day, DB Frankfurt, LL Egiyan, K Ent, R Gilad, S Griffioen, K Higinbotham, DW Kuhn, S Melnitchouk, W Miller, GA Piasetzky, E Stepanyan, S Strikman, MI Weinstein, LB TI Hadrons in the nuclear medium SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS LA English DT Review ID INELASTIC ELECTRON-SCATTERING; LARGE MOMENTUM-TRANSFER; LEPTON-PAIR PRODUCTION; COLOR-TRANSPARENCY; VECTOR-MESONS; QUARK DISTRIBUTIONS; CROSS-SECTIONS; WAVE-FUNCTION; FORM-FACTORS; HIGH Q(2) AB Quantum chromodynamics (QCD), the microscopic theory of strong interactions, has not yet been applied to the calculation of nuclear wavefunctions. However, it certainly provokes a number of specific questions and suggests the existence of novel phenomena in nuclear physics which are not part of the traditional framework of the meson-nucleon description of nuclei. Many of these phenomena are related to high nuclear densities and the role of colour in nucleonic interactions. Quantum fluctuations in the spatial separation between nucleons may lead to local high-density configurations of cold nuclear matter in nuclei, up to four times larger than typical nuclear densities. We argue here that experiments utilizing the higher energies available upon completion of the Jefferson Laboratory energy upgrade will be able to probe the quark-gluon structure of such high-density configurations and therefore elucidate the fundamental nature of nuclear matter. We review three key experimental programmes: quasi-elastic electro-disintegration of light nuclei, deep inelastic scattering from nuclei at x > 1 and the measurement of tagged structure functions. These interrelated programmes are all aimed at the exploration of the quark structure of high-density nuclear configurations. The study of the QCD dynamics of elementary hard processes is another important research direction and nuclei provide a unique avenue to explore these dynamics. In particular, we argue that the use of nuclear targets and large values of momentum transfer at energies available with the Jefferson Laboratory upgrade would allow us to determine whether the physics of the nucleon form factors is dominated by spatially small configurations of three quarks. Similarly, one could determine if hard two-body processes such as exclusive vector meson electroproduction are dominated by production of mesons in small-size q (q) over bar configurations. C1 Florida Int Univ, University Pk, PA USA. Argonne Natl Lab, Argonne, IL 60439 USA. MIT, Cambridge, MA 02139 USA. Coll William & Mary, Williamsburg, VA USA. Univ Virginia, Charlottesville, VA USA. Tel Aviv Univ, IL-69978 Tel Aviv, Israel. Yerevan Phys Inst, Yerevan 375036, Armenia. Thomas Jefferson Natl Accelerator Facil, Newport News, VA USA. Old Dominion Univ, Norfolk, VA USA. Univ Washington, Seattle, WA 98195 USA. Penn State Univ, University Pk, PA 16802 USA. RP Sargsian, MM (reprint author), Florida Int Univ, University Pk, PA USA. RI Arrington, John/D-1116-2012; Higinbotham, Douglas/J-9394-2014; Day, Donal/C-5020-2015 OI Arrington, John/0000-0002-0702-1328; Higinbotham, Douglas/0000-0003-2758-6526; Day, Donal/0000-0001-7126-8934 NR 180 TC 48 Z9 48 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0954-3899 EI 1361-6471 J9 J PHYS G NUCL PARTIC JI J. Phys. G-Nucl. Part. Phys. PD MAR PY 2003 VL 29 IS 3 BP R1 EP R45 AR PII S0954-3899(03)54926-X DI 10.1088/0954-3899/29/3/201 PG 45 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA 661BM UT WOS:000181871400004 ER PT J AU Tonn, B AF Tonn, B TI Concrete and clay: Reworking nature in New York City SO JOURNAL OF PLANNING EDUCATION AND RESEARCH LA English DT Book Review C1 Univ Tennessee, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN USA. RP Tonn, B (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. NR 2 TC 0 Z9 0 U1 0 U2 0 PU SAGE PUBLICATIONS INC PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA SN 0739-456X J9 J PLAN EDUC RES JI J. Plan. Educ. Res. PD SPR PY 2003 VL 22 IS 3 BP 319 EP 320 DI 10.1177/0739456X03022003013 PG 2 WC Planning & Development; Urban Studies SC Public Administration; Urban Studies GA 652AB UT WOS:000181355600013 ER PT J AU Goshe, MB Blonder, J Smith, RD AF Goshe, MB Blonder, J Smith, RD TI Affinity labeling of highly hydrophobic integral membrane proteins for proteome-wide analysis SO JOURNAL OF PROTEOME RESEARCH LA English DT Article DE affinity labeling; biotinylation; membrane proteins; hydrophobic proteins; proteomics; mass spectrometry ID MASS-SPECTROMETRY; OUTER-MEMBRANE; 2-DIMENSIONAL ELECTROPHORESIS; MULTIDRUG TRANSPORTERS; ABC TRANSPORTERS; DRUG-RESISTANCE; IDENTIFICATION; TAGS; MECHANISMS; ENRICHMENT AB The ability to identify and quantitate integral membrane proteins is an analytical challenge for mass spectrometry-based proteomics. The use of surfactants to solubilize and facilitate derivatization of these proteins can suppress peptide ionization and interfere with chromatographic separations during microcapillary reversed-phase liquid chromatography-electrospray-tandem mass spectrometry. To circumvent the use of surfactants and increase proteome coverage, an affinity labeling method has been developed to target highly hydrophobic integral membrane proteins using organic-assisted extraction and solubilization followed by cysteinyl-specific labeling using biotinylation reagents. As demonstrated on the membrane subproteome of Deinococcus radiodurans, specific and quantitative labeling of integral membrane proteins was achieved using a 60% methanol-aqueous buffer system and (+)-biotinyl-iodoacetamidyl-3,6-dioxaoctanediamine as the cysteinyl-alkylating reagent. From a total of 220 unique Cys-labeled peptides, 89 proteins were identified, of which 40 were integral membrane proteins containing from one to nine mapped transmembrane domains with a maximum positive GRAVY of 1.08. The protocol described can be used with other stable isotope labeling reagents (e.g., ICAT) to enable comparative measurements to be made on differentially expressed hydrophobic membrane proteins from various organisms (e.g., pathogenic bacteria) and cell types and provide a viable method for comparative proteome-wide analyses. C1 Pacific NW Natl Lab, Div Biol Sci, Richland, WA 99352 USA. RP Smith, RD (reprint author), Pacific NW Natl Lab, Div Biol Sci, POB 999,MSIN K8-98, Richland, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 NR 38 TC 59 Z9 62 U1 0 U2 1 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 MAR-APR PY 2003 VL 2 IS 2 BP 153 EP 161 DI 10.1021/pr0255607 PG 9 WC Biochemical Research Methods SC Biochemistry & Molecular Biology GA 665WD UT WOS:000182143500005 PM 12716129 ER PT J AU Rai, D Felmy, AR Yui, M AF Rai, D Felmy, AR Yui, M TI Thermodynamic model for the solubility of NdPO4(c) in the aqueous Na+-H+-H2PO4--HPO42--OH--Cl--H2O system SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY LA English DT Article ID ELECTROLYTES; COMPLEXATION; CONSTANTS; PRODUCT AB The solubility of NdPO4(c) was studied at 23+/-2 degreesC from both the over and undersaturation directions, with pH ranging from 0 to 9, P concentrations ranging from 0.0003 to 1.00M, and equilibration periods ranging from 6 to 57 days. Equilibrium was reached in < 6 days. From the H+, Nd, and P concentrations in equilibrated solutions, the logarithm of the thermodynamic equilibrium constant for the reaction (NdPO4(c) &REVARR; Nd3+ + PO43-) was calculated to be -24.65+/-0.23 and the value of the Pitzer ion-interaction parameter beta((2)) for Nd3+-H2PO4- was determined to be -92.9. Predictions based on these thermodynamic quantities were in excellent agreement with the experimental data. C1 Pacific NW Natl Lab, Richland, WA 99352 USA. Tokai Works, Japan Nucl Cycle Dev Inst, Tokai, Ibaraki, Japan. RP Rai, D (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. NR 24 TC 8 Z9 8 U1 0 U2 6 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0236-5731 J9 J RADIOANAL NUCL CH JI J. Radioanal. Nucl. Chem. PD MAR PY 2003 VL 256 IS 1 BP 37 EP 43 DI 10.1023/A:1023339723535 PG 7 WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science & Technology SC Chemistry; Nuclear Science & Technology GA 667BL UT WOS:000182210900006 ER PT J AU Miyabe, K Guiochon, G AF Miyabe, K Guiochon, G TI Measurement of the parameters of the mass transfer kinetics in high performance liquid chromatography SO JOURNAL OF SEPARATION SCIENCE LA English DT Review DE mass transfer kinetics; moment analysis; pulse on a plateau method; kinetic parameters; surface diffusion ID TRANSFER RATE COEFFICIENT; COLUMN RADIAL HETEROGENEITY; INTRAPARTICLE SORPTION RATE; IMPRINTED STATIONARY-PHASE; POROUS POLYMER PACKINGS; ENTHALPY-ENTROPY COMPENSATION; ANION-EXCHANGE CHROMATOGRAPHY; SURFACE-DIFFUSION PHENOMENA; BOVINE SERUM-ALBUMIN; LINEAR CHROMATOGRAPHY AB Fundamental studies of the mass transfer kinetics are as essential as those of the retention equilibrium for a detailed understanding of the characteristics and the mechanisms of chromatographic separations. The acquisition of a large amount of reliable experimental data and of meaningful results is necessary for any further progress of our knowledge of kinetics. The main goal of this review is to provide information on the methods used to perform accurate measurements and on the data analysis procedures used for deriving the kinetic parameters characterizing mass transfer in HPLC. First, the general characteristics of several methods of determination of some kinetic parameters are briefly reviewed. Secondly, we give detailed explanations of the experimental conditions of the pulse on a plateau method (i.e., elution chromatography on a plateau of finite concentration or pulse response method) and of the data analysis procedures based on moment analysis. Thirdly, we explain some important requirements for the acquisition of appropriate experimental data and discuss corrections to be applied when deriving several kinetic parameters. Fourthly, we discuss the accuracy of the kinetic parameters derived from the pulse on a plateau method and from moment analysis. Finally, some results concerning the mass transfer kinetics in RPLC systems are demonstrated as examples. C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. Oak Ridge Natl Lab, Div Chem & Analyt Sci, Oak Ridge, TN 37831 USA. Nagoya Inst Technol, Dept Appl Chem, Nagoya, Aichi 4668555, Japan. RP Guiochon, G (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. NR 82 TC 98 Z9 99 U1 0 U2 18 PU WILEY-V C H VERLAG GMBH PI WEINHEIM PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY SN 1615-9314 J9 J SEP SCI JI J. Sep. Sci. PD MAR PY 2003 VL 26 IS 3-4 BP 155 EP 173 DI 10.1002/jssc.200390024 PG 19 WC Chemistry, Analytical SC Chemistry GA 662MD UT WOS:000181950200002 ER PT J AU Baker, GA AF Baker, GA TI Can an attractive potential increase the pressure of an ideal electron gas? SO JOURNAL OF STATISTICAL PHYSICS LA English DT Article DE quantum statistical mechanics; equations of state; Fermi gas; cellular model; hydrogen ID THOMAS-FERMI; ATOMS AB We examine the intuitive, classical idea that an interactive system involving commonly used attractive potentials should always have a pressure which is less than that of an ideal Fermi gas. We find that quantum effects are of crucial importance and that, while this idea is normally correct, under certain circumstances, the pressure can exceed that of the ideal Fermi gas. C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Baker, GA (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. NR 14 TC 3 Z9 3 U1 0 U2 0 PU KLUWER ACADEMIC/PLENUM PUBL PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-4715 J9 J STAT PHYS JI J. Stat. Phys. PD MAR PY 2003 VL 110 IS 3-6 BP 971 EP 979 PG 9 WC Physics, Mathematical SC Physics GA 640RG UT WOS:000180701300024 ER PT J AU Kawasaki, K AF Kawasaki, K TI Dynamical van der Waals model of glassy behavior SO JOURNAL OF STATISTICAL PHYSICS LA English DT Article DE glassy behavior; van der Waals; replica approach; mode coupling theory ID LINEAR HYDRODYNAMIC FLUCTUATIONS; LONG-LIVED STRUCTURES; SUPERCOOLED LIQUIDS; COUPLING-THEORY; METASTABLE STATES; FIELD-THEORY; STATISTICAL-MECHANICS; GENERAL THEORY; SYSTEMS; TRANSITION AB A model fluid system whose intermolecular forces consist of the short range part characterizing usual stable fluid and the long range part of Kac-type is considered. When the ratio of the force ranges is large enough, the system can be described by regarding the system having only short range interactions as a reference fluid treated as a continuum, on which long range forces acting among tiny fluid elements are superimposed. We discuss the glassy behavior of this model relating it to the mode coupling theory and using real replica theory. These theories lead to the two equations for non-ergodicity parameter which are totally different from each other. We argue that our model can be a basis for examining nature of the drastic approximations entering derivations of the mode coupling equations. We further explore the possibility of developing the dynamical real replica approach for our model system with the hope of providing a framework to cope with different time scales characterizing complex glassy behavior. C1 Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. RP Kawasaki, K (reprint author), 4-37-9 Takamidai,Higashi Ku, Fukuoka 8110215, Japan. NR 79 TC 14 Z9 14 U1 1 U2 2 PU KLUWER ACADEMIC/PLENUM PUBL PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0022-4715 J9 J STAT PHYS JI J. Stat. Phys. PD MAR PY 2003 VL 110 IS 3-6 BP 1249 EP 1304 DI 10.1023/A:1022161330306 PG 56 WC Physics, Mathematical SC Physics GA 640RG UT WOS:000180701300038 ER PT J AU Kilcoyne, ALD Tyliszczak, T Steele, WF Fakra, S Hitchcock, P Franck, K Anderson, E Harteneck, B Rightor, EG Mitchell, GE Hitchcock, AP Yang, L Warwick, T Ade, H AF Kilcoyne, ALD Tyliszczak, T Steele, WF Fakra, S Hitchcock, P Franck, K Anderson, E Harteneck, B Rightor, EG Mitchell, GE Hitchcock, AP Yang, L Warwick, T Ade, H TI Interferometer-controlled scanning transmission X-ray microscopes at the Advanced Light Source SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Article DE X-rays; zone plates; scanning microscopy; NEXAFS ID PLATE GENERATED MICROPROBE; ZONE PLATES; SPECTROMICROSCOPY; RESOLUTION; SPECTROSCOPY; NM; RADIATION; NANOFABRICATION; INSTRUMENTATION; UNDULATOR AB Two new soft X-ray scanning transmission microscopes located at the Advanced Light Source (ALS) have been designed, built and commissioned. Interferometer control implemented in both microscopes allows the precise measurement of the transverse position of the zone plate relative to the sample. Long-term positional stability and compensation for transverse displacement during translations of the zone plate have been achieved. The interferometer also provides low-distortion orthogonal x, y imaging. Two different control systems have been developed: a digital control system using standard VXI components at beamline 7.0, and a custom feedback system based on PC AT boards at beamline 5.3.2. Both microscopes are diffraction limited with the resolution set by the quality of the zone plates. Periodic features with 30 nm half period can be resolved with a zone plate that has a 40 nm outermost zone width. One microscope is operating at an undulator beamline (7.0), while the other is operating at a novel dedicated bending-magnet beamline (5.3.2), which is designed specifically to illuminate the microscope. The undulator beamline provides count rates of the order of tens of MHz at high-energy resolution with photon energies of up to about 1000 eV. Although the brightness of a bending-magnet source is about four orders of magnitude smaller than that of an undulator source, photon statistics limited operation with intensities in excess of 3 MHz has been achieved at high energy resolution and high spatial resolution. The design and performance of these microscopes are described. C1 N Carolina State Univ, Dept Phys, Raleigh, NC 27895 USA. McMaster Univ, Brockhouse Inst Mat Res, Hamilton, ON L8S 4M1, Canada. Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. Dow Chem Co USA, Midland, MI 48667 USA. RP Ade, H (reprint author), N Carolina State Univ, Dept Phys, Raleigh, NC 27895 USA. RI Ade, Harald/E-7471-2011; Kilcoyne, David/I-1465-2013 NR 51 TC 410 Z9 411 U1 6 U2 58 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0909-0495 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD MAR PY 2003 VL 10 BP 125 EP 136 DI 10.1107/S0909049502017739 PN 2 PG 12 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA 656LJ UT WOS:000181609000003 PM 12606790 ER PT J AU Tamura, N MacDowell, AA Spolenak, R Valek, BC Bravman, JC Brown, WL Celestre, RS Padmore, HA Batterman, BW Patel, JR AF Tamura, N MacDowell, AA Spolenak, R Valek, BC Bravman, JC Brown, WL Celestre, RS Padmore, HA Batterman, BW Patel, JR TI Scanning X-ray microdiffraction with submicrometer white beam for strain/stress and orientation mapping in thin films SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Article DE X-ray microdiffraction; thin films; strain/stress ID SPATIAL-RESOLUTION; MICROBEAM DIFFRACTION; GRAIN-ORIENTATION; LAUE DIFFRACTION; WAVE-GUIDE; STRAIN; MICROPROBE; TEXTURE; OPTICS; ELECTROMIGRATION AB Scanning X-ray microdiffraction (muSXRD) combines the use of high-brilliance synchrotron sources with the latest achromatic X-ray focusing optics and fast large-area two-dimensional-detector technology. Using white beams or a combination of white and monochromatic beams, this technique allows for the orientation and strain/stress mapping of polycrystalline thin films with submicrometer spatial resolution. The technique is described in detail as applied to the study of thin aluminium and copper blanket films and lines following electromigration testing and/or thermal cycling experiments. It is shown that there are significant orientation and strain/stress variations between grains and inside individual grains. A polycrystalline film when investigated at the granular (micrometer) level shows a highly mechanically inhomogeneous medium that allows insight into its mesoscopic properties. If the muSXRD data are averaged over a macroscopic range, results show good agreement with direct macroscopic texture and stress measurements. C1 Univ Calif Berkeley, Lawrence Berkeley Lab, ALS, Berkeley, CA 94720 USA. Agere Syst, Murray Hill, NJ 07974 USA. Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA. Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA. Stanford Univ, Stanford Linear Accelerator Ctr, SSRL, Stanford, CA 94309 USA. RP Tamura, N (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, ALS, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RI Spolenak, Ralph/A-1655-2008; MacDowell, Alastair/K-4211-2012 NR 37 TC 168 Z9 170 U1 5 U2 50 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0909-0495 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD MAR PY 2003 VL 10 BP 137 EP 143 DI 10.1107/S0909049502021362 PN 2 PG 7 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA 656LJ UT WOS:000181609000004 PM 12606791 ER PT J AU Wong, J Ressler, T Elmer, JW AF Wong, J Ressler, T Elmer, JW TI Dynamics of phase transformations and microstructure evolution in carbon-manganese steel arc welds using time-resolved synchrotron X-ray diffraction SO JOURNAL OF SYNCHROTRON RADIATION LA English DT Article DE phase transformation; dynamics; time-resolved diffraction; fusion welds ID IN-SITU OBSERVATIONS; HEAT-AFFECTED ZONE; TRANSPORT PHENOMENA; FUSION WELDS; DIAGRAMS; SOLIDIFICATION; FUNDAMENTALS; RADIATION; SYSTEM; MACRO AB Phase transformations that occur in both the heat-affected zone (HAZ) and the fusion zone (FZ) of a carbon-manganese steel spot weld have been investigated using time-resolved X-ray diffraction (TRXRD) with time resolutions down to 50 ms. It is found that in both zones the gamma(f.c.c.) --> alpha(b.c.c.) transformation on cooling is twice as fast as the forward transformation of alpha --> gamma on heating. Profile analysis of the major Bragg reflections recorded in the TRXRD patterns reveals similarities and differences in the microstructural evolution with time in the HAZ and in the FZ. The latter undergoes melting and solidification in addition to solid-state transformations. With increasing temperature, the (110) d-spacing of the alpha phase prior to and during the alpha --> gamma transformation and the (111) d-spacing of the phase just after the same transformation exhibit a decrease. The observed (and unusual) lattice contraction with temperature rise may be attributed to chemical effects, such as carbide precipitation in the alpha matrix, and/or mechanical effects due to stress relief. In the FZ, the gamma-Fe that forms has a preferential (200) texture on solidification of the liquid, whereas, on cooling in the HAZ, the gamma-Fe retains largely a (111) texture that is induced in the alpha --> gamma transformation on heating. On cooling in the HAZ, the width of the gamma(111) reflection increases initially, which is indicative of microstrain developing in the f.c.c. lattice, but decreases as expected, with a reduction of thermal disorder, on further cooling until the completion of the gamma --> alpha transformation. In the FZ, however, the microstrain in the phase increases steadily on solidification and more rapidly for the duration of the gamma --> alpha transformation on further cooling. The final microstructure of the FZ is likely to consist of a single alpha phase dispersed in two morphological entities, whereas in the HAZ the alpha phase persists in one morphological entity in the final microstructure. C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Wong, J (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94551 USA. EM wong10@llnl.gov NR 35 TC 17 Z9 17 U1 3 U2 8 PU BLACKWELL MUNKSGAARD PI COPENHAGEN PA 35 NORRE SOGADE, PO BOX 2148, DK-1016 COPENHAGEN, DENMARK SN 0909-0495 J9 J SYNCHROTRON RADIAT JI J. Synchrot. Radiat. PD MAR PY 2003 VL 10 BP 154 EP 167 DI 10.1107/S0909049502020289 PN 2 PG 14 WC Instruments & Instrumentation; Optics; Physics, Applied SC Instruments & Instrumentation; Optics; Physics GA 656LJ UT WOS:000181609000007 PM 12606794 ER PT J AU Backhaus, S Swift, GW AF Backhaus, S Swift, GW TI An acoustic streaming instability in thermoacoustic devices utilizing jet pumps SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Article ID PULSE TUBE REFRIGERATORS; STIRLING HEAT ENGINE AB Thermoacoustic-Stirling hybrid engines and feedback pulse tube refrigerators can utilize jet pumps to suppress streaming that would otherwise cause large heat leaks and reduced efficiency. It is desirable to use jet pumps to suppress streaming because they do not introduce moving parts such as bellows or membranes. In most cases, this form of streaming suppression works reliably. However, in some cases, the streaming suppression has been found to be unstable. Using a simple model of the acoustics in the regenerators and jet pumps of these devices, a stability criterion is derived that predicts when,jet pumps can reliably suppress streaming. (C) 2003 Acoustical Society of America. C1 Los Alamos Natl Lab, Condensed Matter & Thermal Phys Grp, Los Alamos, NM 87545 USA. RP Backhaus, S (reprint author), Los Alamos Natl Lab, Condensed Matter & Thermal Phys Grp, POB 1663, Los Alamos, NM 87545 USA. RI Backhaus, Scott/F-4285-2012 NR 20 TC 9 Z9 10 U1 0 U2 4 PU ACOUSTICAL SOC AMER AMER INST PHYSICS PI MELVILLE PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA SN 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD MAR PY 2003 VL 113 IS 3 BP 1317 EP 1324 DI 10.1121/1.1543588 PG 8 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA 653CB UT WOS:000181416700014 PM 12656366 ER EF