FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Nordholt, JE
   Reisenfeld, DB
   Wiens, RC
   Gary, SP
   Crary, F
   Delapp, DM
   Elphic, RC
   Funsten, HO
   Hanley, JJ
   Lawrence, DJ
   McComas, DJ
   Shappirio, M
   Steinberg, JT
   Wang, J
   Young, DT
AF Nordholt, JE
   Reisenfeld, DB
   Wiens, RC
   Gary, SP
   Crary, F
   Delapp, DM
   Elphic, RC
   Funsten, HO
   Hanley, JJ
   Lawrence, DJ
   McComas, DJ
   Shappirio, M
   Steinberg, JT
   Wang, J
   Young, DT
TI Deep Space 1 encounter with Comet 19P/Borrelly: Ion composition
   measurements by the PEPE mass spectrometer
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID PLASMA COMPOSITION MEASUREMENTS; P/HALLEY; HALLEY
AB [1] We report in situ ion mass spectrometer measurements from the coma of Comet 19P/Borrelly, obtained during the flyby of the Deep Space 1 spacecraft on 22 September 2001. Cometary ions were detected at distances from similar to5.5 x 10(5) km to 2200 km from the nucleus of the comet. The predominant heavy ions observed during the seven minute interval about closest approach to Borrelly included OH+ (at 57% of the total water-group density), H2O+ (at 29%), O+ (at 13%), CH3+ (at 5%), and CH2+ (at 4%). Of particular note is the small amount of H3O+ (<9%), as this was the most abundant molecular ion observed at closest approach to Comet Halley. This difference is due to the difference in water production rates between the two comets.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Univ Michigan, Ann Arbor, MI 48109 USA.
   SW Res Inst, San Antonio, TX 78238 USA.
   Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
RP Nordholt, JE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Funsten, Herbert/A-5702-2015; Reisenfeld, Daniel/F-7614-2015; Lawrence,
   David/E-7463-2015
OI Funsten, Herbert/0000-0002-6817-1039; Lawrence,
   David/0000-0002-7696-6667
NR 11
TC 10
Z9 10
U1 0
U2 0
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 6
PY 2003
VL 30
IS 9
AR 1465
DI 10.1029/2002GL016840
PG 4
WC Geosciences, Multidisciplinary
SC Geology
GA 678NG
UT WOS:000182872900002
ER

PT J
AU Ivanova, K
   Ackerman, TP
   Clothiaux, EE
   Ivanov, PC
   Stanley, HE
   Ausloos, M
AF Ivanova, K
   Ackerman, TP
   Clothiaux, EE
   Ivanov, PC
   Stanley, HE
   Ausloos, M
TI Time correlations and 1/f behavior in backscattering radar reflectivity
   measurements from cirrus cloud ice fluctuations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE ice; correlations; cirrus clouds; scaling laws; fractals; radar
   backscattering cross section
ID SCALING BEHAVIOR; TEMPERATURE-FLUCTUATIONS; MICROPHYSICAL PROPERTIES;
   DETRENDED FLUCTUATION; CONDENSED MATTER; LIQUID WATER; PARAMETERIZATION;
   SERIES; NUCLEATION; PERSISTENCE
AB [1] The state of the atmosphere is governed by the classical laws of fluid motion and exhibits correlations in various spatial and temporal scales. These correlations are crucial to understand the short- and long-term trends in climate. Cirrus clouds are important ingredients of the atmospheric boundary layer. To improve future parameterization of cirrus clouds in climate models, it is important to understand the cloud properties and how they change within the cloud. We study correlations in the fluctuations of radar signals obtained at isodepths of winter and fall cirrus clouds. In particular, we focus on three quantities: (1) the backscattering cross-section, (2) the Doppler velocity, and (3) the Doppler spectral width. They correspond to the physical coefficients used in Navier Stokes equations to describe flows, i.e., bulk modulus, viscosity, and thermal conductivity. In all cases we find that power law time correlations exist with a crossover between regimes at about 3 to 5 min. We also find that different type of correlations, including 1/f behavior, characterize the top and the bottom layers and the bulk of the clouds. The underlying mechanisms for such correlations are suggested to originate in ice nucleation and crystal growth processes.
C1 Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA.
   Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
   US DOE, Pacific NW Natl Lab, Richland, WA 99352 USA.
   Univ Liege, SUPRAS, B-4000 Liege, Belgium.
   Univ Liege, Grp Res Appl Stat Phys, B-4000 Liege, Belgium.
RP Ivanova, K (reprint author), Boston Univ, Ctr Polymer Studies, Boston, MA 02215 USA.
EM kristy@bgearn.bitnet
RI Ivanov, Plamen /E-8004-2012
NR 68
TC 11
Z9 11
U1 0
U2 1
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 6
PY 2003
VL 108
IS D9
AR 4268
DI 10.1029/2002JD003000
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 678PA
UT WOS:000182874600007
ER

PT J
AU Jacobson, AR
   Light, TEL
AF Jacobson, AR
   Light, TEL
TI Bimodal radio frequency pulse distribution of intracloud-lightning
   signals recorded by the FORTE satellite
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID FIRST RETURN STROKES; PHOTODIODE DETECTOR; OPTICAL-EMISSIONS; VHF
   SIGNALS; PHENOMENOLOGY; RADIATION; FLASHES; PAIRS; PARAMETERS; PICTURES
AB [1] The FORTE satellite's radio frequency receiver payload has made millions of recordings of lightning discharges. The most commonly occurring such radio emission arises from intracloud (IC) electrical breakdown and is usually recognizable by a pulse followed by a delayed echo from the ground reflection. We show that these IC pulses have two polar opposite types that together account for much of the pulse population. One type is a very bright pulse characterized by extended width (> 2 mus), deep random fading within the pulse, and lack of prior pulses within a flash to which it belongs. The other type of IC pulse is two orders of magnitude less intense and is characterized by narrow width (< 0.1 mu s), a simple pulse shape evidencing no random fading, linear polarization, and occurrence in close association with other such pulses within the same flash. We develop the characteristics of these two pulse types by extensive statistical analysis of FORTE data. We relate the two pulse types to prior observations by other instruments.
C1 Los Alamos Natl Lab, Space & Atmospher Sci Grp, Los Alamos, NM 87545 USA.
RP Jacobson, AR (reprint author), Los Alamos Natl Lab, Space & Atmospher Sci Grp, NIS-1,Mail Stop D466, Los Alamos, NM 87545 USA.
EM ajacobson@lanl.gov
NR 48
TC 28
Z9 30
U1 0
U2 0
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 6
PY 2003
VL 108
IS D9
AR 4266
DI 10.1029/2002JD002613
PG 26
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 678PA
UT WOS:000182874600005
ER

PT J
AU Zhai, X
   Peleshanko, S
   Klimenko, NS
   Genson, KL
   Vaknin, D
   Vortman, MY
   Shevchenko, VV
   Tsukruk, VV
AF Zhai, X
   Peleshanko, S
   Klimenko, NS
   Genson, KL
   Vaknin, D
   Vortman, MY
   Shevchenko, VV
   Tsukruk, VV
TI Amphiphilic dendritic molecules: Hyperbranched polyesters with
   alkyl-terminated branches
SO MACROMOLECULES
LA English
DT Article
ID AIR-WATER-INTERFACE; SCANNING PROBE MICROSCOPY; X-RAY-DIFFRACTION;
   2,2-BIS(HYDROXYMETHYL)PROPIONIC ACID; ALIPHATIC POLYESTERS;
   POLYPHENYLENE DENDRIMERS; CARBOSILANE DENDRIMERS; NEUTRON REFLECTIVITY;
   AIR/WATER INTERFACE; LANGMUIR MONOLAYERS
AB We report on the synthesis of a series of second-generation hyperbranched polyesters with a variable composition of alkyl-terminated groups. We observed that the chemical modification of the hyperbranched cores by substituting a controlled fraction of the terminal hydroxyl groups with hydrophobic alkyl chains is an effective method for a controlling amphiphilic balance of hyperbranched cores with a degree of branching of 50%. Even for imperfect cores, the chemical reaction of hydroxyl groups alkyl tails was very efficient. In fact, the number of attached alkyl tails was fairly close to the theoretical value based on the assumption that all targeted hydroxyl groups were available for the reaction despite their different interior/exterior location. Detailed microstructural analysis of the structure revealed that organized monolayers could be formed at the air-water interface if the number of alkyl tails was higher than two per core. Similar to regular dendrimers, the alkyl tails of hyperbranched molecules at high surface pressure form intramonolayer ordering of the quasi-hexagonal type. However, higher defectness and irregularities of the hyperbranched cores are responsible for poor intralayer ordering of alkyl tails in comparison with regular dendrimers. At high surface pressure, the alkyl tails became arranged in an up-right orientation. The highly water-swollen state of the hyperbranched cores of prolate shape and the partially submerged and standing-off alkyl tails is a characteristic of hyperbranched molecules with fewer alkyl chains in condensed monolayer state at the air-water interface. The core structure is transformed into the oblate, flattened state with preservation of standing-off orientation of the alkyl tails for hyperbranched molecules with crowded outer shells.
C1 Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
   Inst Macromol Chem, UA-02160 Kiev, Ukraine.
   Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
   Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Tsukruk, VV (reprint author), Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RI Vaknin, David/B-3302-2009
OI Vaknin, David/0000-0002-0899-9248
NR 73
TC 64
Z9 65
U1 1
U2 15
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAY 6
PY 2003
VL 36
IS 9
BP 3101
EP 3110
DI 10.1021/ma021383j
PG 10
WC Polymer Science
SC Polymer Science
GA 674QC
UT WOS:000182646600017
ER

PT J
AU Zhang, C
   Hong, SC
   Ji, N
   Wang, YP
   Wei, KH
   Shen, YR
AF Zhang, C
   Hong, SC
   Ji, N
   Wang, YP
   Wei, KH
   Shen, YR
TI Sum-frequency vibrational spectroscopic study of surface glass
   transition of poly(vinyl alcohol)
SO MACROMOLECULES
LA English
DT Article
ID SCANNING-FORCE MICROSCOPY; POLYMER-FILMS; THIN-FILMS; POLYSTYRENE FILMS;
   TEMPERATURE; DYNAMICS; POLYPROPYLENE; RELAXATIONS; INTERFACE
AB Sum-frequency vibrational spectroscopy was employed to study surface glass transition of poly(vinyl alcohol) by monitoring the relaxation of rubbing-induced alignment of surface chains with increase of temperature. The observed chain relaxation is two-dimensional, parallel to the surface. The surface transition temperature is 58 +/- 2 degreesC, essentially the same as the bulk one.
C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
   Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30049, Taiwan.
RP Shen, YR (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
NR 23
TC 18
Z9 19
U1 0
U2 3
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD MAY 6
PY 2003
VL 36
IS 9
BP 3303
EP 3306
DI 10.1021/ma025681s
PG 4
WC Polymer Science
SC Polymer Science
GA 674QC
UT WOS:000182646600041
ER

PT J
AU Rouleau, CM
   Jellison, GE
   Beach, DB
AF Rouleau, CM
   Jellison, GE
   Beach, DB
TI Influence of MgO substrate miscut on domain structure of pulsed laser
   deposited SrxBa1-xNb2O6 as characterized by x-ray diffraction and
   spectroscopic ellipsometry
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID NIOBATE THIN-FILMS; GROWTH
AB Pulsed laser deposition has been used to grow highly oriented SrxBa1-xNb2O6 (SBN:x) on (001)MgO and miscut MgO (2degrees off 001 toward 100) in the presence of a pulsed O-2 jet. The target stoichiometry was SBN:52+/-1.5%, but films grown at 700 degreesC were cation deficient and had a final composition of SBN:61+/-1.5%. Visually, the films were specular, but spectroscopic ellipsometry measurements showed they were highly absorbing, requiring a short anneal in O-2 at 700 degreesC to make them fully transparent. Pole figure analysis indicated that a thick 626+/-1 nm film consisted of the characteristic antiphase domain structure of SBN, but four antiphase domains were found in a thin 185+/-1 nm film. However, the formation of these additional domains was suppressed in a 165+/-1 nm film grown on miscut MgO. Spectroscopic ellipsometry measurements have been made to measure surface and interface roughness, film thickness, as well as the spectroscopic refractive index and extinction coefficient of the films. (C) 2003 American Institute of Physics.
C1 Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA.
   Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Rouleau, CM (reprint author), Oak Ridge Natl Lab, Div Solid State, POB 2008, Oak Ridge, TN 37831 USA.
RI Rouleau, Christopher/Q-2737-2015
OI Rouleau, Christopher/0000-0002-5488-3537
NR 12
TC 15
Z9 17
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 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 5
PY 2003
VL 82
IS 18
BP 2990
EP 2992
DI 10.1063/1.1572464
PG 3
WC Physics, Applied
SC Physics
GA 673FR
UT WOS:000182570000018
ER

PT J
AU Yang, Q
   Feick, H
   Weber, ER
AF Yang, Q
   Feick, H
   Weber, ER
TI Observation of a hydrogenic donor in the luminescence of
   electron-irradiated GaN
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID VAPOR-PHASE EPITAXY; BOUND EXCITONS; NATIVE DEFECTS; PHOTOLUMINESCENCE
AB Excitonic luminescence of GaN after irradiation with 0.42-MeV electrons has been investigated in detail. The low-energy irradiation generates damage exclusively in the N sublattice. Additional bound-exciton lines are found and are shown to arise from a hydrogenic donor with a binding energy of 25 meV. The donor binding energy, bound-exciton localization energy, and bound-exciton lifetime are discussed in comparison with the values observed for O-N and Si-Ga in the same sample. Nitrogen vacancies V-N forming a hydrogenic donor state are suggested to be the most likely origin of this luminescence emission. Finally, a metastable behavior related to the damage-induced defects is reported and discussed in conjunction with interstitial-nitrogen-related defects. (C) 2003 American Institute of Physics.
C1 Univ Calif Berkeley, Div Sci Mat, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Yang, Q (reprint author), Univ Calif Berkeley, Div Sci Mat, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
EM qingyang@uclink.berkeley.edu
NR 27
TC 28
Z9 29
U1 0
U2 3
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 MAY 5
PY 2003
VL 82
IS 18
BP 3002
EP 3004
DI 10.1063/1.1570943
PG 3
WC Physics, Applied
SC Physics
GA 673FR
UT WOS:000182570000022
ER

PT J
AU Nogues, J
   Sort, J
   Surinach, S
   Munoz, JS
   Baro, MD
   Bobo, JF
   Luders, U
   Haanappel, E
   Fitzsimmons, MR
   Hoffmann, A
   Cai, JW
AF Nogues, J
   Sort, J
   Surinach, S
   Munoz, JS
   Baro, MD
   Bobo, JF
   Luders, U
   Haanappel, E
   Fitzsimmons, MR
   Hoffmann, A
   Cai, JW
TI Isothermal tuning of exchange bias using pulsed fields
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID BLOCKING TEMPERATURE; COOLING FIELD; SPIN-FLOP; BILAYERS; NIO;
   ANTIFERROMAGNETS; COERCIVITY; ANISOTROPY; INTERFACES; STABILITY
AB Exchange bias, H-E, and coercivity, H-C, of antiferromagnetic (AFM)/ferromagnetic bilayers can be adjusted, after deposition, at temperatures below the Neel temperature of the AFM by subjecting the samples to large pulsed fields (in excess of H-Pulse=550 kOe). The efficiency of the process depends on the AFM system and the direction of the applied field with respect of the unidirectional anisotropy direction. Textured (111) Fe19Ni81/Fe50Mn50 bilayers show an H-E reduction and a H-C increase when the pulse field is applied antiparallel to the unidirectional anisotropy, while they only exhibit a reduction in H-C when the pulse is applied parallel to their unidirectional anisotropy. On the other hand, textured (111) NiO/Co bilayers exhibit a change of the angular dependence of H-E when the pulse is applied away from the unidirectional anisotropy. The effects could be caused by field induced changes in the domain structure of the AFM or transitions in the AFM (spin-flop or AFM-paramagnetic). (C) 2003 American Institute of Physics.
C1 Univ Autonoma Barcelona, ICREA, Bellaterra 08193, Spain.
   Univ Autonoma Barcelona, Dept Fis, Bellaterra 08193, Spain.
   UPS, INSA, LPMC, CNRS,UMR 5830, F-31077 Toulouse, France.
   Lab Natl Champs Magnet Pulses, F-31432 Toulouse, France.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China.
RP Nogues, J (reprint author), Univ Autonoma Barcelona, ICREA, Bellaterra 08193, Spain.
RI Surinach, Santiago/A-1749-2009; Baro, Maria Dolors/A-2096-2009; Nogues,
   Josep/D-7791-2012; Lujan Center, LANL/G-4896-2012; Hoffmann,
   Axel/A-8152-2009; Sort, Jordi/F-6582-2014
OI Surinach, Santiago/0000-0001-8125-0594; Baro, Maria
   Dolors/0000-0002-8636-1063; Nogues, Josep/0000-0003-4616-1371; Hoffmann,
   Axel/0000-0002-1808-2767; Sort, Jordi/0000-0003-1213-3639
NR 29
TC 39
Z9 39
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 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 5
PY 2003
VL 82
IS 18
BP 3044
EP 3046
DI 10.1063/1.1565711
PG 3
WC Physics, Applied
SC Physics
GA 673FR
UT WOS:000182570000036
ER

PT J
AU Toney, MF
   Rubin, KA
   Choi, SM
   Glinka, CJ
AF Toney, MF
   Rubin, KA
   Choi, SM
   Glinka, CJ
TI Small-angle neutron scattering measurements of magnetic cluster sizes in
   magnetic recording disks
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID THIN-FILM MEDIA; GRAIN-SIZE; LONGITUDINAL MEDIA; THERMAL-STABILITY;
   MICROSTRUCTURE; DISTRIBUTIONS; MICROSCOPY; DECAY
AB We describe small-angle neutron scattering measurements of the magnetic cluster size distributions for several longitudinal magnetic recording media. We find that the average magnetic cluster size is slightly larger than the average physical grain size, that there is a broad distribution of cluster sizes, and that the cluster size is inversely correlated to the media signal-to-noise ratio. These results show that intergranular magnetic coupling in these media is small and they provide empirical data for the cluster-size distribution that can be incorporated into models of magnetic recording. (C) 2003 American Institute of Physics.
C1 IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA.
   Natl Inst Stand & Technol, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
   Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA.
RP Toney, MF (reprint author), IBM Corp, Almaden Res Ctr, Div Res, San Jose, CA 95120 USA.
EM mftoney@slac.stanford.edu
NR 26
TC 14
Z9 14
U1 0
U2 3
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 MAY 5
PY 2003
VL 82
IS 18
BP 3050
EP 3052
DI 10.1063/1.1571652
PG 3
WC Physics, Applied
SC Physics
GA 673FR
UT WOS:000182570000038
ER

PT J
AU Hong, SC
   Zhang, C
   Shen, YR
AF Hong, SC
   Zhang, C
   Shen, YR
TI Rubbing-induced polar ordering in nylon-11
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SUM-FREQUENCY GENERATION; SURFACE
AB Sum-frequency vibrational spectroscopy was used to show that mechanical rubbing could induce domains of ferroelectric ordering in films of odd-numbered nylon. In each domain, the dipole groups of NH and CO were aligned perpendicular to the rubbing direction and parallel to the surface. (C) 2003 American Institute of Physics.
C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Hong, SC (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM shenyr@socrates.berkeley.edu
NR 12
TC 11
Z9 11
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 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD MAY 5
PY 2003
VL 82
IS 18
BP 3068
EP 3070
DI 10.1063/1.1570937
PG 3
WC Physics, Applied
SC Physics
GA 673FR
UT WOS:000182570000044
ER

PT J
AU Henderson, P
   Arnold, T
   McMakin, A
AF Henderson, P
   Arnold, T
   McMakin, A
TI Target business opportunities through in-depth interviews
SO CHEMISTRY & INDUSTRY
LA English
DT Article
C1 Washington State Univ, Pullman, WA 99164 USA.
   Pacific NW Natl Lab, Richland, WA USA.
RP Henderson, P (reprint author), Washington State Univ, Pullman, WA 99164 USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU SOC CHEMICAL INDUSTRY
PI LONDON
PA 14 BELGRAVE SQUARE, LONDON SW1X 8PS, ENGLAND
SN 0009-3068
J9 CHEM IND-LONDON
JI Chem. Ind.
PD MAY 5
PY 2003
IS 9
BP 10
EP 10
PG 1
WC Chemistry, Applied
SC Chemistry
GA 680HE
UT WOS:000182969600012
ER

PT J
AU Li, B
   Chi, LS
   Corbett, JD
AF Li, B
   Chi, LS
   Corbett, JD
TI Na6TISb4: Synthesis, structure, and bonding. An electron-rich salt with
   a chain conformation and a TlI-Tl bond length determined by the cation
SO INORGANIC CHEMISTRY
LA English
DT Article
ID METALLIC ZINTL PHASE; CRYSTAL-STRUCTURE; ZIGZAG CHAINS; CLUSTERS;
   ANTIMONIDE; NETWORK; COMPOUND; HALIDES; ANIONS; LAYERS
AB The title compound forms on fusion and annealing of a stoichiometric mixture of the elements. The structure was determined by single-crystal X-ray diffraction methods in the monoclinic space group C2/c, with a = 15.154(3) Angstrom, b = 10.401(2) Angstrom, c= 17.413(4) Angstrom, and beta = 113.57(3)degrees, Z = 8. Four-membered Tl-Sb1-Sb4-Sb3 rings interlinked by pairs of Sb2 bridges generate swinglike repeat units [Tl2Sb8] that are further interlinked through external Tl-Tl bonds to form infinite one-dimensional chains. Cations play a major role in the structure. In contrast to the Zintl-phase K6Tl2Sb3 with similar swinglike [Tl4Sb6] repeating units and Tl-Tl interlinkages, Na6TlSb4 has a more compact conformation of the chains and a notably smaller cell volume than expected. The new phase is metallic with two excess cations according to empirical electron counting, EHTB band calculations for the anion, and the compound's measured resistivities and magnetic susceptibilities. The notably shorter Tl-Tl bond in the present salt (2.954 Angstrom) can be directly attributed to the smaller cation and reduced intercation repulsions across that bond.
C1 Iowa State Univ, Ames Lab, DOE, Ames, IA 50011 USA.
   Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
RP Corbett, JD (reprint author), Iowa State Univ, Ames Lab, DOE, Ames, IA 50011 USA.
NR 43
TC 11
Z9 11
U1 1
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0020-1669
J9 INORG CHEM
JI Inorg. Chem.
PD MAY 5
PY 2003
VL 42
IS 9
BP 3036
EP 3042
DI 10.1021/ic020728b
PG 7
WC Chemistry, Inorganic & Nuclear
SC Chemistry
GA 674RU
UT WOS:000182650400032
PM 12716198
ER

PT J
AU Woosley, SE
   Heger, A
   Rauscher, T
   Hoffman, RD
AF Woosley, SE
   Heger, A
   Rauscher, T
   Hoffman, RD
TI Nuclear data needs for the study of nucleosynthesis in massive stars
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID R-PROCESS NUCLEOSYNTHESIS; C-12(ALPHA,GAMMA)O-16 REACTION-RATE; CAPTURE
   CROSS-SECTIONS; NEUTRINO-DRIVEN WINDS; GAMMA-RAY BURSTS; S-PROCESS;
   ASYMMETRIC SUPERNOVAE; MODEL CALCULATIONS; RANGE; EVOLUTION
AB The critical nuclear physics needed to calculate the evolution of and nucleosynthesis in massive stars is reviewed with emphasis on the uncertainties. Some reaction rates - the most important and uncertain still being C-12 (alpha, gamma)O-16 - are important for energy generation and stellar structure. Others, like Ne-22(alpha,n)Mg-25 and individual cross sections for neutron capture determine the overall yield and distribution of the s-process for elements lighter than A = 90. Still others affect the synthesis of individual nuclei, e.g., by the nu-process, the rp-process, and the gamma-process. Weak interaction rates are important in determining the structure of both the pre-collapse and the post-collapse supernova core. Finally, both the site for, and the nuclear physics of the r-process remains very uncertain, quite possibly because of the neglect of magnetic fields.
C1 Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
   Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
   Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
   Lawrence Livermore Natl Lab, Nucl Theory & Modeling Grp, Livermore, CA 94550 USA.
RP Woosley, SE (reprint author), Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
RI Rauscher, Thomas/D-2086-2009
OI Rauscher, Thomas/0000-0002-1266-0642
NR 45
TC 21
Z9 21
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 3C
EP 12C
DI 10.1016/S0375-9474(03)00673-0
PG 10
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300002
ER

PT J
AU Blackmon, JC
   Bardayan, DW
   Bradfield-Smith, W
   Brummitt, R
   Champagne, AE
   Chen, AA
   Davinson, T
   Dessieux, L
   Guidry, MW
   Hahn, KI
   Hale, GM
   Hix, WR
   Kozub, RL
   Ma, Z
   Parker, PD
   Rajbaidya, G
   Runkle, RC
   Rowland, CM
   Shotter, AC
   Smith, MS
   Van Wormer, LA
   Visser, DW
   Woods, PJ
AF Blackmon, JC
   Bardayan, DW
   Bradfield-Smith, W
   Brummitt, R
   Champagne, AE
   Chen, AA
   Davinson, T
   Dessieux, L
   Guidry, MW
   Hahn, KI
   Hale, GM
   Hix, WR
   Kozub, RL
   Ma, Z
   Parker, PD
   Rajbaidya, G
   Runkle, RC
   Rowland, CM
   Shotter, AC
   Smith, MS
   Van Wormer, LA
   Visser, DW
   Woods, PJ
TI The O-14(alpha,p)F-17 reaction rate
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID NE-18
AB The O-14(alpha,p)F-17 reaction is an important part of the hot CNO cycle. We have measured cross sections for the F-17(pp)F-17(gs), F-17(p,p(1))F-17(495)*, and F-17(p,alpha)O-14 reactions in inverse kinematics using radioactive F-17 beams from the Holifield Radioactive Ion Beam Facility. The properties of states in Ne-18, including those important for the O-14(alpha,p)F-17 reaction rate, were determined from an R-matrix analysis of the measured cross sections. An improved O-14(alpha,p)F-17 reaction rate has been determined.
   The hot CNO cycle of reactions is important in explosive astrophysical environments such as novae and X-ray bursts. In this cycle, proton captures by C-12 and N-13 in succession lead to the production of O-14. Destruction of O-14 occurs by O-14(beta(+))N-14 and by the O-14 (alpha,p)F-17 reaction. The slow rate of this reaction can limit energy generation and result in substantial abundances of the O-14 isotope in novae [1] and X-ray bursts [2].
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Hiram Coll, Dept Phys, Hiram, OH 44234 USA.
   Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
   Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
   Ewha Womans Univ, Seoul 120750, South Korea.
   Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Simon Fraser Univ, Burnaby, BC V5A 1S6, Canada.
   Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
   Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06511 USA.
   Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
RP Blackmon, JC (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RI Visser, Dale/A-8117-2009; Hix, William/E-7896-2011
OI Visser, Dale/0000-0002-2891-4731; Hix, William/0000-0002-9481-9126
NR 8
TC 23
Z9 24
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 127C
EP 130C
DI 10.1016/S0375-9747(03)00689-4
PG 4
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300018
ER

PT J
AU Thielemann, FK
   Argast, D
   Brachwitz, F
   Hix, WR
   Hoflich, P
   Liebendorfer, M
   Martinez-Pinedo, G
   Mezzacappa, A
   Panov, I
   Rauscher, T
AF Thielemann, FK
   Argast, D
   Brachwitz, F
   Hix, WR
   Hoflich, P
   Liebendorfer, M
   Martinez-Pinedo, G
   Mezzacappa, A
   Panov, I
   Rauscher, T
TI Nuclear cross sections, nuclear structure and stellar nucleosynthesis
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Sports, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astron Observ Japan
ID CORE-COLLAPSE SUPERNOVAE; STATISTICAL-MODEL CALCULATIONS; BOLTZMANN
   NEUTRINO TRANSPORT; ASTROPHYSICAL REACTION-RATES; R-PROCESS; IA
   SUPERNOVAE; POSTBOUNCE EVOLUTION; STAR MERGERS; DRIVEN WINDS; ABUNDANCES
AB The role of nuclear reactions (strong, weak and electromagnetic) and nuclear structure effects are discussed in a number of stellar applications. We address fusion cross sections in stellar evolution, neutrino-induced reactions in type II supernovae, electron captures in type la supernovae and fission in the r-process. All of this is discussed in the context of nucleosynthesis products and their role in galactic chemical evolution.
C1 Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ Texas, Dept Astron, Austin, TX 78712 USA.
RP Univ Basel, Dept Phys & Astron, Klingelbergstr 82, CH-4056 Basel, Switzerland.
EM martinez@quasar.physik.unibas.ch; Igor.panov@itep.ru;
   Thomas.Rauscher@unibas.ch
RI Rauscher, Thomas/D-2086-2009; Hix, William/E-7896-2011; Martinez-Pinedo,
   Gabriel/A-1915-2013; Panov, Igor/F-1454-2013; Mezzacappa,
   Anthony/B-3163-2017
OI Rauscher, Thomas/0000-0002-1266-0642; Hix, William/0000-0002-9481-9126;
   Martinez-Pinedo, Gabriel/0000-0002-3825-0131; Mezzacappa,
   Anthony/0000-0001-9816-9741
NR 66
TC 47
Z9 47
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
EI 1873-1554
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 139C
EP 146C
DI 10.1016/S0375-9474(03)00704-8
PG 8
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300021
ER

PT J
AU Rehm, KE
   Wuosmaa, AH
   Jiang, CL
   Greene, J
   Heinz, A
   Henderson, D
   Janssens, RVF
   Jisonna, L
   Moore, EF
   Mukherjee, G
   Pardo, RC
   Paul, M
   Pennington, T
   Schiffer, JP
   Segel, RE
   Siemssen, RH
AF Rehm, KE
   Wuosmaa, AH
   Jiang, CL
   Greene, J
   Heinz, A
   Henderson, D
   Janssens, RVF
   Jisonna, L
   Moore, EF
   Mukherjee, G
   Pardo, RC
   Paul, M
   Pennington, T
   Schiffer, JP
   Segel, RE
   Siemssen, RH
TI The branching ratio Gamma(alpha)/Gamma(gamma) of the 4.033 MeV state in
   Ne-19
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID STRENGTHS; ALPHA
AB The O-15(alpha,gamma)Ne-19 reaction is an important pathway from the hot CNO cycle to the rp process that leads to the synthesis of heavier nuclei. At lower temperatures, the reaction rate is dominated by the transition to the 4.033 MeV 3/2(+) state in Ne-19, the first level above the O-15(alpha, gamma) threshold at 3.534 MeV. We have performed an indirect measurement of the ratio Gamma(alpha)/Gamma(gamma) by populating the 3/2(+) state via the He-3 (Ne-20,alpha)Ne-19 reaction in inverse kinematics. The alpha particles were detected in a double-sided Si strip detector telescope while the heavy reaction products, Ne-19 and O-15, were identified in the focal plane of a magnetic spectrograph. For the 4.033 MeV state in Ne-19 an upper limit Gamma(alpha)/Gamma(gamma), of less than or equal to 7x10(-4) has been obtained.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
   Northwestern Univ, Evanston, IL USA.
   Hebrew Univ Jerusalem, Jerusalem, Israel.
RP Rehm, KE (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Heinz, Andreas/E-3191-2014
NR 13
TC 0
Z9 0
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 151C
EP 154C
DI 10.1016/S0375-9474(03)00706-1
PG 4
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300023
ER

PT J
AU Heger, A
   Woosley, SE
   Langanke, K
   Kolbe, E
   Rauscher, T
   Hoffman, RD
AF Heger, A
   Woosley, SE
   Langanke, K
   Kolbe, E
   Rauscher, T
   Hoffman, RD
TI Nucleosynthesis of heavy elements in massive stars
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID EVOLUTION; PHYSICS; WINDS
AB We present nucleosynthesis results form calculations that follow the evolution of massive stars from their birth on the main sequence through their explosion as supernovae. Our simulations include all relevant isotopes and reaction rates up to bismuth. These are the first calculations to follow self-consistently in a complete massive star model the heavy s-process, p-process (gamma-process), and nu-process. We discuss where in the star the heavy p-process and nu-process are made. We show the first calculations of the charged and neutral current nu-process including a two particle cascade for the production of La-138 and Ta-180 in complete stellar models.
C1 Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
   Lawrence Livermore Natl Lab, Nucl Theory & Modeling Grp, Livermore, CA 94550 USA.
   Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
   Aarhus Univ, Inst Fys & Astron, DK-8000 Aarhus C, Denmark.
   Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
RP Heger, A (reprint author), Univ Chicago, Dept Astron & Astrophys, 5640 S Ellis Ave, Chicago, IL 60637 USA.
RI Rauscher, Thomas/D-2086-2009
OI Rauscher, Thomas/0000-0002-1266-0642
NR 12
TC 2
Z9 2
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 159C
EP 166C
DI 10.1016/S0375-9474(03)00708-5
PG 8
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300025
ER

PT J
AU Boyd, RN
   Murphy, AS
   Talaga, RL
AF Boyd, RN
   Murphy, AS
   Talaga, RL
TI OMNIS, the Observatory of Multiflavor NeutrInos from Supernovae
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID SOLAR NEUTRINOS; OPTIMIZATION; COLLAPSE; LEAD; B-8
AB OMNIS, the Observatory for Multiflavor Neutrlnos from Supernovae, is being designed to detect supernova neutrinos via their interactions with lead nuclei. The information obtained will impact our understanding of the stellar collapse process, neutrino mass and oscillations, nucleosynthesis, black hole astrophysics, and nucleon decay.
C1 Ohio State Univ, Dept Astron, Dept Phys, Columbus, OH 43210 USA.
   Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Argonne Natl Lab, Argonne, IL 60439 USA.
RP Boyd, RN (reprint author), Ohio State Univ, Dept Astron, Dept Phys, Columbus, OH 43210 USA.
OI Murphy, Alexander/0000-0001-8337-4427
NR 17
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 222C
EP 225C
DI 10.1016/S0375-9474(03)00718-8
PG 4
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300034
ER

PT J
AU Paul, M
   Feldstein, C
   Ahmad, I
   Berkovits, D
   Bordeanu, C
   Caggiano, J
   Ghelberg, S
   Goerres, J
   Greene, J
   Hass, M
   Heinz, A
   Henderson, D
   Hui, SK
   Janssens, RVF
   Jiang, CL
   Jiang, S
   Nirel, Y
   Pardo, RC
   Pennington, T
   Rehm, KE
   Savard, G
   Verri, G
   Vondrasek, R
   Wiedenhover, I
   Wiescher, M
AF Paul, M
   Feldstein, C
   Ahmad, I
   Berkovits, D
   Bordeanu, C
   Caggiano, J
   Ghelberg, S
   Goerres, J
   Greene, J
   Hass, M
   Heinz, A
   Henderson, D
   Hui, SK
   Janssens, RVF
   Jiang, CL
   Jiang, S
   Nirel, Y
   Pardo, RC
   Pennington, T
   Rehm, KE
   Savard, G
   Verri, G
   Vondrasek, R
   Wiedenhover, I
   Wiescher, M
TI Counting Ti-44 nuclei from the Ca-40(alpha,gamma)Ti-44 reaction
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID COMPTEL OBSERVATIONS; EMISSION
AB Among the many production and destruction nuclear reactions that bear on the net Ti-44 yield in the supernova environment, recently highlighted by gamma-ray astronomy observations, the a capture on Ca-40 stands out in the alpha-rich freezeout phase conjectured by astrophysical models. We activate a He-gas target with a Ca-40 beam and implant recoiling Ti-44 nuclei (similar to10(6)) in a Cu catcher. The Ti-44 atoms chemically extracted with a Ti-nat carrier are counted by accelerator mass spectrometry (AMS). The measurement of the Ti-44/Ti ratio, together with the amount of Ti carrier added, determine the number of Ti-44 nuclei produced in the activation, independent of chemical yield or transmission efficiency. The resonance strength (7.4+/-2.5 eV) at E-cm similar to1.1 MeV/n determined for two close-by levels of Ti-44 is in excellent agreement with previous prompt-gamma measurements. We plan to extend our experiments to the lower energy range.
C1 Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
   Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Soreq NRC, Yavne, Israel.
   Weizmann Inst Sci, Particle Phys Dept, IL-76100 Rehovot, Israel.
   Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RP Paul, M (reprint author), Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
RI Bordeanu, Cristina/J-3438-2012; Heinz, Andreas/E-3191-2014
OI Bordeanu, Cristina/0000-0003-4641-0630; 
NR 11
TC 11
Z9 11
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 239C
EP 242C
DI 10.1016/S0375-9474(03)00720-6
PG 4
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300036
ER

PT J
AU Smith, MS
AF Smith, MS
TI Nuclear data for astrophysics
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID THERMONUCLEAR REACTION-RATES; CAPTURE
AB In order to address important astrophysics problems such as the origin of the chemical elements, the inner workings of our Sun, and the evolution of stars, crucial nuclear datasets are needed. Recent evaluation and dissemination efforts have produced a number of such datasets, many of which are online and readily available to the research community. Current international efforts in this field are, unfortunately, insufficient to keep pace with the latest nuclear physics measurements and model calculations. A dedicated effort is required to update and expand existing datasets. I discuss several strategies and new initiatives that would ensure a more effective utilization of nuclear data in astrophysics. These include launching a new web site www.nucastrodata.org to aid in locating available nuclear data sets, and an interactive online plotting program with an easy-to-use graphical user interface to over 8000 reaction rates. An enhanced effort in this field could be maintained by formalizing the position of a Nuclear Astrophysics Data Coordinator.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Smith, MS (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
NR 30
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 339C
EP 346C
DI 10.1016/S0375-9474(03)00736-X
PG 8
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300051
ER

PT J
AU Rauscher, T
   Guber, KH
AF Rauscher, T
   Guber, KH
TI Prediction of astrophysical reaction rates as a challenge to nuclear
   physics
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID STATISTICAL-MODEL CALCULATIONS; CAPTURE CROSS-SECTIONS; LEVEL DENSITY;
   S-PROCESS; NUCLEOSYNTHESIS
AB Explosive nuclear burning in astrophysical environments produces unstable nuclei which again can be targets for subsequent reactions. In addition, it involves a large number of stable nuclides which are not fully explored by experiments, yet. Thus, it is necessary to be able to predict reaction cross sections and thermonuclear rates with the aid of theoretical models. Such predictions are also of interest for investigations at radioactive ion beam facilities. An extended library of theoretical cross sections and reaction rates is presented. The problem of properly predicting cross sections at low level densities is illustrated by the Ni-62(n,gamma) reaction.
C1 Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
   Oak Ridge Natl Lab, Nucl Sci & Technol Div, Oak Ridge, TN 37831 USA.
RP Rauscher, T (reprint author), Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
RI Rauscher, Thomas/D-2086-2009
OI Rauscher, Thomas/0000-0002-1266-0642
NR 13
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 347C
EP 350C
DI 10.1016/S0375-9474(03)00737-1
PG 4
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300052
ER

PT J
AU Lange, JS
AF Lange, JS
CA STAR Collaboration
TI Search for new states of matter with the STAR experiment at RHIC
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Sports, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astron Observ Japan
ID GEV AU+AU COLLISIONS; ROOT-S(NN)=130 GEV
AB High energy nucleus-nucleus collisions are used for the search for the Quark-Gluon Plasma, a state of matter predicted by lattice QCD. Since 1999, the STAR experiment recorded in total similar or equal to10 x 10(6) Au + Au events at roots = 130 GeV and 200 GeV, which were analyzed to determine the temperature, size and density of the collision system.
C1 Goethe Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany.
RP Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 19
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
EI 1873-1554
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 367C
EP 374C
DI 10.1016/S0375-9474(03)00741-3
PG 8
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300056
ER

PT J
AU Sampaio, JM
   Langanke, K
   Martinez-Pinedo, G
   Kolbe, E
   Dean, DJ
AF Sampaio, JM
   Langanke, K
   Martinez-Pinedo, G
   Kolbe, E
   Dean, DJ
TI Electron capture rates for core collapse supernovae
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Sports, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astron Observ Japan
C1 Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark.
   Univ Basel, Dept Phys & Astron, Basel, Switzerland.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark.
EM sampaio@ifa.au.dk; langanke@ifa.au.dk; martinez@quasar.physik.unibas.ch
RI Martinez-Pinedo, Gabriel/A-1915-2013; Sampaio, Jorge/M-4750-2013; 
OI Martinez-Pinedo, Gabriel/0000-0002-3825-0131; Sampaio,
   Jorge/0000-0003-4359-493X; Dean, David/0000-0002-5688-703X
NR 6
TC 4
Z9 4
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
EI 1873-1554
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 440C
EP 442C
DI 10.1016/S0375-9474(03)00832-7
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300076
ER

PT J
AU Rehm, KE
   Winter, W
   Jiang, CL
   Ahmad, I
   Freedman, SJ
   Greene, J
   Heinz, A
   Henderson, D
   Janssens, RVF
   Moore, EF
   Mukherjee, G
   Pardo, RC
   Paul, M
   Pennington, T
   Savard, G
   Schiffer, JP
   Seweryniak, D
   Zinkann, G
AF Rehm, KE
   Winter, W
   Jiang, CL
   Ahmad, I
   Freedman, SJ
   Greene, J
   Heinz, A
   Henderson, D
   Janssens, RVF
   Moore, EF
   Mukherjee, G
   Pardo, RC
   Paul, M
   Pennington, T
   Savard, G
   Schiffer, JP
   Seweryniak, D
   Zinkann, G
TI Study of the B-8 neutrino spectrum with a new technique.
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID DECAY; ALPHA
AB The neutrino spectrum from the decay of B-8 is a crucial ingredient in interpreting recent data from solar neutrino detectors. Since 113 decays to a broad state in Be-8, the shape of the neutrino spectrum is best obtained from a measurement of the a spectrum following the beta(+) decay. A new technique has been used at the ATLAS accelerator to measure this spectrum by implanting B-8 particles into the mid-plane of a 91 mum thick Si detector. The advantage of this method is that both alpha particles are detected and systematic effects due to energy loss in catcher foils and dead layers of the detector are eliminated. To calibrate the detector, alpha's from the decay of Na-20 ions produced and implanted with the same technique were used.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
   Lawrence Berkeley Natl Lab, Berkeley, CA USA.
   Hebrew Univ Jerusalem, Jerusalem, Israel.
RP Rehm, KE (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Heinz, Andreas/E-3191-2014
NR 5
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 443C
EP 445C
DI 10.1016/S0375-9474(03)00841-8
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300077
ER

PT J
AU Messer, OEB
   Hix, WR
   Liebendorfer, M
   Mezzacappa, A
AF Messer, OEB
   Hix, WR
   Liebendorfer, M
   Mezzacappa, A
TI Electron capture and shock formation in core-collapse supernovae
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID WEAK-INTERACTION RATES; SD-SHELL NUCLEI; NEUTRINO TRANSPORT; STELLAR;
   MODEL
AB New supernova progenitor models incorporating modern electron capture and beta decay rates have recently become available. One of the more notable differences in these new models is an increase in the electron fraction throughout the iron core when compared to earlier models. We describe fully self-consistent radiation hydrodynamic simulations of core collapse and shock formation using both sets of models, including both a standard set of electron capture rates for supernova simulations and a parameterized scheme meant to approximate the modern updates.
C1 Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
RP Messer, OEB (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RI Hix, William/E-7896-2011; Messer, Bronson/G-1848-2012; Mezzacappa,
   Anthony/B-3163-2017
OI Hix, William/0000-0002-9481-9126; Messer, Bronson/0000-0002-5358-5415;
   Mezzacappa, Anthony/0000-0001-9816-9741
NR 15
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 449C
EP 451C
DI 10.1016/S0375-9474(03)00846-7
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300079
ER

PT J
AU Martinez-Pinedo, G
   Dean, DJ
   Langanke, K
   Sampaio, J
AF Martinez-Pinedo, G
   Dean, DJ
   Langanke, K
   Sampaio, J
TI Neutrino-nucleus interactions in core-collapse supernova
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID ENVIRONMENT
C1 Univ Basel, Dept Phys & Astron, CH-4003 Basel, Switzerland.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Aarhus Univ, Inst Fys & Astron, Aarhus, Denmark.
RP Martinez-Pinedo, G (reprint author), Inst Estudis Espacials Catalunya, Edifici Nexus,Gran Capita 2, E-08034 Barcelona, Spain.
RI Martinez-Pinedo, Gabriel/A-1915-2013; Sampaio, Jorge/M-4750-2013; 
OI Martinez-Pinedo, Gabriel/0000-0002-3825-0131; Sampaio,
   Jorge/0000-0003-4359-493X; Dean, David/0000-0002-5688-703X
NR 8
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 452C
EP 454C
DI 10.1016/S0375-9474(03)00849-2
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300080
ER

PT J
AU Rauscher, T
   Heger, A
   Hoffman, RD
   Woosley, SE
AF Rauscher, T
   Heger, A
   Hoffman, RD
   Woosley, SE
TI Hydrostatic and explosive nucleosynthesis in massive stars using
   improved nuclear and stellar physics
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID THERMONUCLEAR REACTION-RATES; CROSS-SECTIONS; MODEL CALCULATIONS;
   O-18(ALPHA,GAMMA)NE-22; BEAM
AB We have performed the first calculations to follow the evolution of all stable nuclei and their radioactive progenitors in a finely-zoned stellar model computed from the onset of central hydrogen burning through explosion as a Type 11 supernova. Calculations were done for 15 M-circle dot, 19 M-circle dot, 20 Mcircle dot, 21 Mcircle dot, and 25 Mcircle dot Pop I stars using the most recently available set of experimental and theoretical nuclear data, revised opacity tables, and taking into account mass loss due to stellar winds. Here, we focus on the nuclear inputs.
C1 Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
   Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
   LLNL, Nucl Theory & Modelling Grp, Livermore, CA 94550 USA.
   Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
RP Rauscher, T (reprint author), Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland.
RI Rauscher, Thomas/D-2086-2009
OI Rauscher, Thomas/0000-0002-1266-0642
NR 34
TC 8
Z9 8
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 463C
EP 465C
DI 10.1016/S0375-9474(03)00852-2
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300083
ER

PT J
AU Reifarth, R
   Haight, R
   Heil, M
   Fowler, MM
   Kappeler, F
   Miller, GG
   Rundberg, RS
   Ullmann, JL
   Wilhelmy, JB
AF Reifarth, R
   Haight, R
   Heil, M
   Fowler, MM
   Kappeler, F
   Miller, GG
   Rundberg, RS
   Ullmann, JL
   Wilhelmy, JB
TI Neutron capture measurements on Tm-171
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
AB A first proof of principal experiment of measuring neutron capture cross sections of radioactive isotopes was performed on Tm-171 which has a half life of 1.92 years. This isotope was chosen for its ease of production and its radiation properties. The experiment was done at an 8 meter irradiation station at LANSCE using the pulse height weighting technique. A complemental activation measurement at FZK as well as a theoretical estimation indicated a significant background component above I keV neutron energy during the experiment at LANSCE.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Forschungszentrum Karlsruhe, D-76021 Karlsruhe, Germany.
RP Reifarth, R (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 5
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 478C
EP 480C
DI 10.1016/S0375-9474(03)00862-5
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300088
ER

PT J
AU Bardayan, DW
   Blackmon, JC
   Champagne, AE
   Dummer, AK
   Davinson, T
   Greife, U
   Hill, D
   Iliadis, C
   Johnson, BA
   Kozub, RL
   Lee, CS
   Smith, MS
   Woods, PJ
AF Bardayan, DW
   Blackmon, JC
   Champagne, AE
   Dummer, AK
   Davinson, T
   Greife, U
   Hill, D
   Iliadis, C
   Johnson, BA
   Kozub, RL
   Lee, CS
   Smith, MS
   Woods, PJ
TI Study of Si-26 states important for Al-26 nucleosynthesis in novae
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID AL-25(P,GAMMA)SI-26
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
   Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
   Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
   Chung Ang Univ, Dept Phys, Seoul 156756, South Korea.
RP Bardayan, DW (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
NR 10
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 505C
EP 507C
DI 10.1016/S0375-9474(03)00825-X
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300097
ER

PT J
AU Blackmon, JC
   Bardayan, DW
   Brune, CR
   Champagne, AE
   Crespo, R
   Davinson, T
   Fernandes, JC
   Gagliardi, CA
   Greife, U
   Gross, CJ
   Hausladen, PA
   Iliadis, C
   Jewett, CC
   Kozub, RL
   Lewis, TA
   Liang, F
   Moazen, BH
   Mukhamedzhanov, AM
   Nesaraja, CD
   Nunes, FM
   Parker, PD
   Radford, DC
   Sahin, L
   Scott, JP
   Shapira, D
   Smith, MS
   Thomas, JS
   Trache, L
   Tribble, RE
   Woods, PJ
   Yu, CH
AF Blackmon, JC
   Bardayan, DW
   Brune, CR
   Champagne, AE
   Crespo, R
   Davinson, T
   Fernandes, JC
   Gagliardi, CA
   Greife, U
   Gross, CJ
   Hausladen, PA
   Iliadis, C
   Jewett, CC
   Kozub, RL
   Lewis, TA
   Liang, F
   Moazen, BH
   Mukhamedzhanov, AM
   Nesaraja, CD
   Nunes, FM
   Parker, PD
   Radford, DC
   Sahin, L
   Scott, JP
   Shapira, D
   Smith, MS
   Thomas, JS
   Trache, L
   Tribble, RE
   Woods, PJ
   Yu, CH
TI The F-17(p, gamma)Ne-18 direct capture cross section
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID NE-18
AB The F-17(p, gamma) Ne-18 direct capture cross section is important for understanding nucleosynthesis in novae. We have measured cross sections for the proton-transfer reaction N-14 (F-17, Ne-18) C-13 in order to determine asymptotic normalization coefficients for the F-17 + p system and hence the F-17(p, gamma) Ne-18 direct capture cross section. The technique and preliminary results are presented.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA.
   Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
   Inst Super Tecn, Dept Fis, P-1049001 Lisbon, Portugal.
   Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
   Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA.
   Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37831 USA.
   Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
   Univ Fernando Pessoa, P-4200 Oporto, Portugal.
   Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06511 USA.
   Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ 08903 USA.
RP Blackmon, JC (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RI radford, David/A-3928-2015; Trache, Livius/M-6265-2016; 
OI crespo, raquel/0000-0001-7338-0014; Nesaraja,
   Caroline/0000-0001-5571-8341
NR 8
TC 8
Z9 8
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 587C
EP 589C
DI 10.1016/S0375-9474(03)00872-8
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300123
ER

PT J
AU Bardayan, DW
   Batchelder, JC
   Blackmon, JC
   Champagne, AE
   Davinson, T
   Fitzgerald, R
   Hix, WR
   Iliadis, C
   Kozub, RL
   Ma, Z
   Parete-Koon, S
   Parker, PD
   Shu, N
   Smith, MS
   Woods, PJ
AF Bardayan, DW
   Batchelder, JC
   Blackmon, JC
   Champagne, AE
   Davinson, T
   Fitzgerald, R
   Hix, WR
   Iliadis, C
   Kozub, RL
   Ma, Z
   Parete-Koon, S
   Parker, PD
   Shu, N
   Smith, MS
   Woods, PJ
TI Measurement of the F-18(p, alpha)O-15 cross section at nova energies
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID F-18(P,ALPHA)
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Oak Ridge Associated Univ, UNIRIB, Oak Ridge, TN 37831 USA.
   Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
   Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
   Tennessee Technol Univ, Dept Phys, Cookeville, TN 38505 USA.
   Yale Univ, AW Wright Nucl Struct Lab, New Haven, CT 06520 USA.
   Chinese Inst Atom Energy, Beijing 102413, Peoples R China.
RP Bardayan, DW (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RI Hix, William/E-7896-2011
OI Hix, William/0000-0002-9481-9126
NR 8
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 590C
EP 592C
DI 10.1016/S0375-9474(03)00873-X
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300124
ER

PT J
AU Davids, B
   van den Berg, AM
   Dendooven, P
   Fleurot, F
   Hunyadi, M
   de Huu, MA
   Rehm, KE
   Segel, RE
   Siemssen, RH
   Wilschut, HW
   Wortche, HJ
   Wuosmaa, AH
AF Davids, B
   van den Berg, AM
   Dendooven, P
   Fleurot, F
   Hunyadi, M
   de Huu, MA
   Rehm, KE
   Segel, RE
   Siemssen, RH
   Wilschut, HW
   Wortche, HJ
   Wuosmaa, AH
TI Alpha-decay branching ratios of near-threshold states in Ne-19 and the
   astrophysical rate of O-15(alpha,gamma)Ne-19
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
ID STRENGTHS
AB The O-15(alpha,gamma)Ne-19 reaction is one of two routes for breakout from the hot CNO cycles into the rp process in accreting neutron stars. Its astrophysical rate depends critically on the decay properties of excited states in Ne-19 lying just above the O-15 + alpha threshold. We have measured the alpha-decay branching ratios for these states using the p(Ne-21,t)Ne-19 reaction at 43 MeV/u.
C1 Kernfys Versneller Inst, NL-9747 AA Groningen, Netherlands.
   Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Northwestern Univ, Dept Phys, Evanston, IL 60208 USA.
RP Davids, B (reprint author), Kernfys Versneller Inst, Zernikelaan 25, NL-9747 AA Groningen, Netherlands.
RI van den Berg, Adriaan/P-6792-2015
NR 8
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 605C
EP 607C
DI 10.1016/S0375-9474(03)00899-6
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300129
ER

PT J
AU Hix, WR
   Smith, MS
   Starrfield, S
   Mezzacappa, A
   Smith, DL
AF Hix, WR
   Smith, MS
   Starrfield, S
   Mezzacappa, A
   Smith, DL
TI Impact of nuclear reaction rate uncertainties on nova models
SO NUCLEAR PHYSICS A
LA English
DT Article; Proceedings Paper
CT 7th International Symposium on Nuclei in the Cosmos (NIC7)
CY JUL 08-12, 2002
CL FUJI, JAPAN
SP Todai Int Symp, Univ Tokyo, Int Symp Minist Educ, Culture, Spoets, Sci & Technol, Commemorat Assoc Japan World Exposit 1970, Japan Soc Promot Sci, Inoue Fdn Sci, Kajima Fdn, Natl Astronom Observ Japan
AB We have, for the first time, determined the effect of nuclear reaction rate uncertainties on nova model predictions by simultaneously considering uncertainties in all relevant reaction rates. Our unique Monte Carlo approach enables a robust determination of uncertainties of nuclear origin in predictions of synthesized abundances, including radioisotopes which may be observable. This technique also enables us to identify which reactions most influence the production of each isotope, thereby guiding future measurements.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA.
   Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
   Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA.
   Argonne Natl Lab, Technol Dev Div, Argonne, IL 60439 USA.
RP Hix, WR (reprint author), Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37830 USA.
RI Hix, William/E-7896-2011; Mezzacappa, Anthony/B-3163-2017
OI Hix, William/0000-0002-9481-9126; Mezzacappa,
   Anthony/0000-0001-9816-9741
NR 8
TC 18
Z9 18
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9474
J9 NUCL PHYS A
JI Nucl. Phys. A
PD MAY 5
PY 2003
VL 718
BP 620C
EP 622C
DI 10.1016/S0375-9474(03)00904-7
PG 3
WC Physics, Nuclear
SC Physics
GA 668VR
UT WOS:000182314300134
ER

PT J
AU Hill, RJ
   Neubert, M
AF Hill, RJ
   Neubert, M
TI Spectator interactions in soft-collinear effective theory
SO NUCLEAR PHYSICS B
LA English
DT Article
ID EFFECTIVE-FIELD-THEORY; HEAVY-LIGHT CURRENTS; MESON FORM-FACTORS; QCD
   FACTORIZATION; DISTRIBUTION AMPLITUDES; DECAYS; QUARK; ORDER;
   INVARIANCE; OPERATORS
AB Soft-collinear effective theory is generalized to include soft massless quarks in addition to collinear fields. This extension is necessary for the treatment of interactions with the soft spectator quark in a heavy meson. The power counting of the relevant fields and the construction of the effective Lagrangian are discussed at leading order in Lambda/m(b). Several novel effects occur in the matching of full-theory amplitudes onto effective-theory operators containing soft light quarks, such as the appearance of an intermediate mass scale and large non-localities of operators on scales of order 1/Lambda. Important examples of effective-theory operators with soft light quarks are studied and their renormalization properties explored. The formalism presented here forms the basis for a systematic analysis of factorization and power corrections for any exclusive B-meson decay into light particles. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA.
   Cornell Univ, Newman Lab Elementry Particle Phys, Ithaca, NY 14853 USA.
RP Hill, RJ (reprint author), Stanford Univ, Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA.
RI Hill, Richard/C-8820-2017
OI Hill, Richard/0000-0003-1982-589X
NR 27
TC 98
Z9 98
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0550-3213
J9 NUCL PHYS B
JI Nucl. Phys. B
PD MAY 5
PY 2003
VL 657
IS 1-3
BP 229
EP 256
DI 10.1016/S0550-3213(03)00116-0
PG 28
WC Physics, Particles & Fields
SC Physics
GA 670YB
UT WOS:000182436700008
ER

PT J
AU Xu, Y
   Yariv, A
   Fleming, JG
   Lin, SY
AF Xu, Y
   Yariv, A
   Fleming, JG
   Lin, SY
TI Asymptotic analysis of silicon based Bragg fibers
SO OPTICS EXPRESS
LA English
DT Article
ID LIGHT; AIR
AB We developed an asymptotic formalism that fully characterizes the propagation and loss properties of a Bragg fiber with finite cladding layers. The formalism is subsequently applied to miniature air-core Bragg fibers with Silicon-based cladding mirrors. The fiber performance is analyzed as a function of the Bragg cladding geometries, the core radius and the material absorption. The problems of fiber core deformation and other defects in Bragg fibers are also addressed using a finite-difference time-domain analysis and a Gaussian beam approximation, respectively. (C) 2003 Optical Society of America.
C1 CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA.
   Sandia Natl Labs, MEMS & Novel Silicon Technol, Albuquerque, NM 87185 USA.
RP Xu, Y (reprint author), CALTECH, Dept Appl Phys, MS 128-95, Pasadena, CA 91125 USA.
EM yong@its.caltech.edu
NR 11
TC 43
Z9 47
U1 0
U2 0
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD MAY 5
PY 2003
VL 11
IS 9
BP 1039
EP 1049
DI 10.1364/OE.11.001039
PG 11
WC Optics
SC Optics
GA 678VD
UT WOS:000182886600010
PM 19465968
ER

PT J
AU Rosenau, P
AF Rosenau, P
TI Hamiltonian dynamics of dense chains and lattices: or how to correct the
   continuum
SO PHYSICS LETTERS A
LA English
DT Article
ID SOLITARY WAVES; SYSTEMS; LIMIT
AB We discuss the problems involved in deriving correct quasi-continuum approximations of Hamiltonians describing the motion of dense lattices directly from the underlying discrete Hamiltonian. This assures that the resulting equations of motion have a Hamiltonian structure and are free from ultra-violet instabilities. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Tel Aviv Univ, Sackler Fac Exact Sci, Sch Math Sci, IL-69978 Tel Aviv, Israel.
   Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RP Rosenau, P (reprint author), Tel Aviv Univ, Sackler Fac Exact Sci, Sch Math Sci, IL-69978 Tel Aviv, Israel.
NR 17
TC 37
Z9 38
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9601
J9 PHYS LETT A
JI Phys. Lett. A
PD MAY 5
PY 2003
VL 311
IS 1
BP 39
EP 52
DI 10.1016/S0375-9601(03)00455-9
PG 14
WC Physics, Multidisciplinary
SC Physics
GA 674AT
UT WOS:000182614700006
ER

PT J
AU Blasing, TJ
   Scott, D
   Kaiser, D
AF Blasing, TJ
   Scott, D
   Kaiser, D
TI Evidence for recent changes in a surface-air warming singularity in late
   winter over central North America
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID HEIGHT FIELD
AB [1] Evidence for an earlier onset of spring in recent years is supported by daily temperature data from central North America. From 1976-1999, mean temperatures during February 15th through 24th were appreciably higher (5degreesC or more over large areas) than during 1952-1975. This is associated with a strengthened Aleutian Low for those calendar days during 1976-1999, with negative pressure anomalies extending well into North America. This apparently reflects a decrease in strong, cold, high-pressure systems moving from western Canada into the north central United States during late February. These changes appear to be related to conditions in and over the North Pacific Ocean, possibly in conjunction with global warming, although the latter signal is not clearly obvious. Comparison of time series of daily minimum temperatures for the earlier period (1952 1975) and the recent period (1976-1999) indicates other times of the year when an appreciable warming has occurred; such warming is largely confined to the first half of the calendar year.
C1 Oak Ridge Natl Lab, Carbon Dioxide Informat Anal Ctr, Oak Ridge, TN 37831 USA.
   St Cloud State Univ, St Cloud, MN 56301 USA.
RP Blasing, TJ (reprint author), Oak Ridge Natl Lab, Carbon Dioxide Informat Anal Ctr, Oak Ridge, TN 37831 USA.
RI Blasing, T/B-9498-2012
NR 18
TC 1
Z9 1
U1 0
U2 0
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 2
PY 2003
VL 30
IS 9
AR 1452
DI 10.1029/2002GL016807
PG 4
WC Geosciences, Multidisciplinary
SC Geology
GA 678GN
UT WOS:000182858300005
ER

PT J
AU Gritti, F
   Guiochon, G
AF Gritti, F
   Guiochon, G
TI Effect of the mobile phase composition on the isotherm parameters and
   the high concentration band profiles in reversed-phase liquid
   chromatography
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE mobile phase composition; band profiles; frontal analysis; adsorption
   isotherms; adsorption energy distribution; phenol
ID MAGNETIC-RESONANCE SPECTROSCOPY; OPTIMIZING EXPERIMENTAL CONDITIONS;
   COMPETITIVE ADSORPTION-ISOTHERMS; FINITE-ELEMENTS; SYSTEMS; SOLVATION;
   METHANOL; PROBE; PERFORMANCE; COMPONENTS
AB Single-component adsorption isotherm data were acquired by frontal analysis for phenol on a C-18-Kromasil packed column, under reversed-phase liquid chromatography conditions, using various methanol-water solutions (30-60%, v/v, methanol,). The isotherm model accounting best for these data was the biLangmuir model. With increasing methanol content, the two saturation capacities decrease, particularly that of the high-energy sites, the adsorption constant of the low-energy sites decreases significantly and that of the high-energy sites decreases strongly. These results allow a quantitative investigation of the properties of the high-energy sites (which are not necessarily the so-called active sites), a feature rarely discussed yet. The band profiles calculated with the numerical values of the isotherm model parameters derived by fitting the frontal analysis data to the model and using the equilibrium-dispersive model agree very well with the experimental band profiles in the whole concentration range. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN USA.
RP Guiochon, G (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
NR 31
TC 42
Z9 43
U1 1
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0021-9673
J9 J CHROMATOGR A
JI J. Chromatogr. A
PD MAY 2
PY 2003
VL 995
IS 1-2
BP 37
EP 54
DI 10.1016/S0021-9673(03)00489-8
PG 18
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 681FG
UT WOS:000183025800005
PM 12800921
ER

PT J
AU Adams, J
   Adler, C
   Ahammed, Z
   Allgower, C
   Amonett, J
   Anderson, BD
   Anderson, M
   Averichev, GS
   Balewski, J
   Barannikova, O
   Barnby, LS
   Baudot, J
   Bekele, S
   Belaga, VV
   Bellwied, R
   Berger, J
   Bichsel, H
   Billmeier, A
   Bland, LC
   Blyth, CO
   Bonner, BE
   Boucham, A
   Brandin, A
   Bravar, A
   Cadman, RV
   Caines, H
   Sanchez, MCL
   Cardenas, A
   Carroll, J
   Castillo, J
   Castro, M
   Cebra, D
   Chaloupka, P
   Chattopadhyay, S
   Chen, Y
   Chernenko, SP
   Cherney, M
   Chikanian, A
   Choi, B
   Christie, W
   Coffin, JP
   Cormier, TM
   Corral, MM
   Cramer, JG
   Crawford, HJ
   Derevschikov, AA
   Didenko, L
   Dietel, T
   Draper, JE
   Dunin, VB
   Dunlop, JC
   Eckardt, V
   Efimov, LG
   Emelianov, V
   Engelage, J
   Eppley, G
   Erazmus, B
   Fachini, P
   Faine, V
   Faivre, J
   Fatemi, R
   Filimonov, K
   Finch, E
   Fisyak, Y
   Flierl, D
   Foley, KJ
   Fu, J
   Gagliardi, CA
   Gagunashvili, N
   Gans, J
   Gaudichet, L
   Germain, M
   Geurts, F
   Ghazikhanian, V
   Grachov, O
   Grigoriev, V
   Guedon, M
   Guertin, SM
   Gushin, E
   Hallman, TJ
   Hardtke, D
   Harris, JW
   Heinz, M
   Henry, TW
   Heppelmann, S
   Herston, T
   Hippolyte, B
   Hirsch, A
   Hjort, E
   Hoffmann, GW
   Horsley, M
   Huang, HZ
   Humanic, TJ
   Igo, G
   Ishihara, A
   Ivanshin, YI
   Jacobs, P
   Jacobs, WW
   Janik, M
   Johnson, I
   Jones, PG
   Judd, EG
   Kaneta, M
   Kaplan, M
   Keane, D
   Kiryluk, J
   Kisiel, A
   Klay, J
   Klein, SR
   Klyachko, A
   Kollegger, T
   Konstantinov, AS
   Kopytine, M
   Kotchenda, L
   Kovalenko, AD
   Kramer, M
   Kravtsov, P
   Krueger, K
   Kuhn, C
   Kulikov, AI
   Kunde, GJ
   Kunz, CL
   Kutuev, RK
   Kuznetsov, AA
   Lamont, MAC
   Landgraf, JM
   Lange, S
   Lansdell, CP
   Lasiuk, B
   Laue, F
   Lauret, J
   Lebedev, A
   Lednicky, R
   Leontiev, VM
   LeVine, MJ
   Li, Q
   Lindenbaum, SJ
   Lisa, MA
   Liu, F
   Liu, L
   Liu, Z
   Liu, QJ
   Ljubicic, T
   Llope, WJ
   Long, H
   Longacre, RS
   Lopez-Noriega, M
   Love, WA
   Ludlam, T
   Lynn, D
   Ma, J
   Magestro, D
   Majka, R
   Margetis, S
   Markert, C
   Martin, L
   Marx, J
   Matis, HS
   Matulenko, YA
   McShane, TS
   Meissner, F
   Melnick, Y
   Meschanin, A
   Messer, M
   Miller, ML
   Milosevich, Z
   Minaev, NG
   Mitchell, J
   Moore, CF
   Morozov, V
   de Moura, MM
   Munhoz, MG
   Nelson, JM
   Nevski, P
   Nikitin, VA
   Nogach, LV
   Norman, B
   Nurushev, SB
   Odyniec, G
   Ogawa, A
   Okorokov, V
   Oldenburg, M
   Olson, D
   Paic, G
   Pandey, SU
   Panebratsev, Y
   Panitkin, SY
   Pavlinov, AI
   Pawlak, T
   Perevoztchikov, V
   Peryt, W
   Petrov, VA
   Planinic, M
   Pluta, J
   Porile, N
   Porter, J
   Poskanzer, AM
   Potrebenikova, E
   Prindle, D
   Pruneau, C
   Putschke, J
   Rai, G
   Rakness, G
   Ravel, O
   Ray, RL
   Razin, SV
   Reichhold, D
   Reid, JG
   Renault, G
   Retiere, F
   Ridiger, A
   Ritter, HG
   Roberts, JB
   Rogachevski, OV
   Romero, JL
   Rose, A
   Roy, C
   Rykov, V
   Sakrejda, I
   Salur, S
   Sandweiss, J
   Savin, I
   Schambach, J
   Scharenberg, RP
   Schmitz, N
   Schroeder, LS
   Schuttauf, A
   Schweda, K
   Seger, J
   Seliverstov, D
   Seyboth, P
   Shahaliev, E
   Shestermanov, KE
   Shimanskii, SS
   Simon, F
   Skoro, G
   Smirnov, N
   Snellings, R
   Sorensen, P
   Sowinski, J
   Spinka, HM
   Srivastava, B
   Stephenson, EJ
   Stock, R
   Stolpovsky, A
   Strikhanov, M
   Stringfellow, B
   Struck, C
   Suaide, AAP
   Sugarbaker, E
   Suire, C
   Sumbera, M
   Surrow, B
   Symons, TJM
   de Toledo, AS
   Szarwas, P
   Tai, A
   Takahashi, J
   Tang, AH
   Thein, D
   Thomas, JH
   Thompson, M
   Tikhomirov, V
   Tokarev, M
   Tonjes, MB
   Trainor, TA
   Trentalange, S
   Tribble, RE
   Trofimov, V
   Tsai, O
   Ullrich, T
   Underwood, DG
   Van Buren, G
   Vander Molen, AM
   Vasilevski, IM
   Vasiliev, AN
   Vigdor, SE
   Voloshin, SA
   Wang, F
   Ward, H
   Watson, JW
   Wells, R
   Westfall, GD
   Whitten, C
   Wieman, H
   Willson, R
   Wissink, SW
   Witt, R
   Wood, J
   Xu, N
   Xu, Z
   Yakutin, AE
   Yamamoto, E
   Yang, J
   Yepes, P
   Yurevich, VI
   Zanevski, YV
   Zborovsky, I
   Zhang, H
   Zhang, WM
   Zoulkarneev, R
   Zubarev, AN
AF Adams, J
   Adler, C
   Ahammed, Z
   Allgower, C
   Amonett, J
   Anderson, BD
   Anderson, M
   Averichev, GS
   Balewski, J
   Barannikova, O
   Barnby, LS
   Baudot, J
   Bekele, S
   Belaga, VV
   Bellwied, R
   Berger, J
   Bichsel, H
   Billmeier, A
   Bland, LC
   Blyth, CO
   Bonner, BE
   Boucham, A
   Brandin, A
   Bravar, A
   Cadman, RV
   Caines, H
   Sanchez, MCL
   Cardenas, A
   Carroll, J
   Castillo, J
   Castro, M
   Cebra, D
   Chaloupka, P
   Chattopadhyay, S
   Chen, Y
   Chernenko, SP
   Cherney, M
   Chikanian, A
   Choi, B
   Christie, W
   Coffin, JP
   Cormier, TM
   Corral, MM
   Cramer, JG
   Crawford, HJ
   Derevschikov, AA
   Didenko, L
   Dietel, T
   Draper, JE
   Dunin, VB
   Dunlop, JC
   Eckardt, V
   Efimov, LG
   Emelianov, V
   Engelage, J
   Eppley, G
   Erazmus, B
   Fachini, P
   Faine, V
   Faivre, J
   Fatemi, R
   Filimonov, K
   Finch, E
   Fisyak, Y
   Flierl, D
   Foley, KJ
   Fu, J
   Gagliardi, CA
   Gagunashvili, N
   Gans, J
   Gaudichet, L
   Germain, M
   Geurts, F
   Ghazikhanian, V
   Grachov, O
   Grigoriev, V
   Guedon, M
   Guertin, SM
   Gushin, E
   Hallman, TJ
   Hardtke, D
   Harris, JW
   Heinz, M
   Henry, TW
   Heppelmann, S
   Herston, T
   Hippolyte, B
   Hirsch, A
   Hjort, E
   Hoffmann, GW
   Horsley, M
   Huang, HZ
   Humanic, TJ
   Igo, G
   Ishihara, A
   Ivanshin, YI
   Jacobs, P
   Jacobs, WW
   Janik, M
   Johnson, I
   Jones, PG
   Judd, EG
   Kaneta, M
   Kaplan, M
   Keane, D
   Kiryluk, J
   Kisiel, A
   Klay, J
   Klein, SR
   Klyachko, A
   Kollegger, T
   Konstantinov, AS
   Kopytine, M
   Kotchenda, L
   Kovalenko, AD
   Kramer, M
   Kravtsov, P
   Krueger, K
   Kuhn, C
   Kulikov, AI
   Kunde, GJ
   Kunz, CL
   Kutuev, RK
   Kuznetsov, AA
   Lamont, MAC
   Landgraf, JM
   Lange, S
   Lansdell, CP
   Lasiuk, B
   Laue, F
   Lauret, J
   Lebedev, A
   Lednicky, R
   Leontiev, VM
   LeVine, MJ
   Li, Q
   Lindenbaum, SJ
   Lisa, MA
   Liu, F
   Liu, L
   Liu, Z
   Liu, QJ
   Ljubicic, T
   Llope, WJ
   Long, H
   Longacre, RS
   Lopez-Noriega, M
   Love, WA
   Ludlam, T
   Lynn, D
   Ma, J
   Magestro, D
   Majka, R
   Margetis, S
   Markert, C
   Martin, L
   Marx, J
   Matis, HS
   Matulenko, YA
   McShane, TS
   Meissner, F
   Melnick, Y
   Meschanin, A
   Messer, M
   Miller, ML
   Milosevich, Z
   Minaev, NG
   Mitchell, J
   Moore, CF
   Morozov, V
   de Moura, MM
   Munhoz, MG
   Nelson, JM
   Nevski, P
   Nikitin, VA
   Nogach, LV
   Norman, B
   Nurushev, SB
   Odyniec, G
   Ogawa, A
   Okorokov, V
   Oldenburg, M
   Olson, D
   Paic, G
   Pandey, SU
   Panebratsev, Y
   Panitkin, SY
   Pavlinov, AI
   Pawlak, T
   Perevoztchikov, V
   Peryt, W
   Petrov, VA
   Planinic, M
   Pluta, J
   Porile, N
   Porter, J
   Poskanzer, AM
   Potrebenikova, E
   Prindle, D
   Pruneau, C
   Putschke, J
   Rai, G
   Rakness, G
   Ravel, O
   Ray, RL
   Razin, SV
   Reichhold, D
   Reid, JG
   Renault, G
   Retiere, F
   Ridiger, A
   Ritter, HG
   Roberts, JB
   Rogachevski, OV
   Romero, JL
   Rose, A
   Roy, C
   Rykov, V
   Sakrejda, I
   Salur, S
   Sandweiss, J
   Savin, I
   Schambach, J
   Scharenberg, RP
   Schmitz, N
   Schroeder, LS
   Schuttauf, A
   Schweda, K
   Seger, J
   Seliverstov, D
   Seyboth, P
   Shahaliev, E
   Shestermanov, KE
   Shimanskii, SS
   Simon, F
   Skoro, G
   Smirnov, N
   Snellings, R
   Sorensen, P
   Sowinski, J
   Spinka, HM
   Srivastava, B
   Stephenson, EJ
   Stock, R
   Stolpovsky, A
   Strikhanov, M
   Stringfellow, B
   Struck, C
   Suaide, AAP
   Sugarbaker, E
   Suire, C
   Sumbera, M
   Surrow, B
   Symons, TJM
   de Toledo, AS
   Szarwas, P
   Tai, A
   Takahashi, J
   Tang, AH
   Thein, D
   Thomas, JH
   Thompson, M
   Tikhomirov, V
   Tokarev, M
   Tonjes, MB
   Trainor, TA
   Trentalange, S
   Tribble, RE
   Trofimov, V
   Tsai, O
   Ullrich, T
   Underwood, DG
   Van Buren, G
   Vander Molen, AM
   Vasilevski, IM
   Vasiliev, AN
   Vigdor, SE
   Voloshin, SA
   Wang, F
   Ward, H
   Watson, JW
   Wells, R
   Westfall, GD
   Whitten, C
   Wieman, H
   Willson, R
   Wissink, SW
   Witt, R
   Wood, J
   Xu, N
   Xu, Z
   Yakutin, AE
   Yamamoto, E
   Yang, J
   Yepes, P
   Yurevich, VI
   Zanevski, YV
   Zborovsky, I
   Zhang, H
   Zhang, WM
   Zoulkarneev, R
   Zubarev, AN
CA STAR Collaboration
TI Narrowing of the balance function with centrality in Au plus Au
   collisions at root s(NN)=130 GeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID QUARK-GLUON PLASMA; HEAVY-ION COLLISIONS; FLUCTUATION
AB The balance function is a new observable based on the principle that charge is locally conserved when particles are pair produced. Balance functions have been measured for charged particle pairs and identified charged pion pairs in Au+Au collisions at roots(NN)=130 GeV at the Relativistic Heavy Ion Collider using STAR. Balance functions for peripheral collisions have widths consistent with model predictions based on a superposition of nucleon-nucleon scattering. Widths in central collisions are smaller, consistent with trends predicted by models incorporating late hadronization.
C1 Univ Birmingham, Birmingham, W Midlands, England.
   Argonne Natl Lab, Argonne, IL 60439 USA.
   Brookhaven Natl Lab, Upton, NY 11973 USA.
   Univ Calif Berkeley, Berkeley, CA 94720 USA.
   Univ Calif Davis, Davis, CA 95616 USA.
   Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
   Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
   Creighton Univ, Omaha, NE 68178 USA.
   Joint Inst Nucl Res Dubna, Lab High Energy, Dubna, Russia.
   Joint Inst Nucl Res Dubna, Particle Phys Lab, Dubna, Russia.
   Goethe Univ Frankfurt, D-6000 Frankfurt, Germany.
   Indiana Univ, Bloomington, IN 47408 USA.
   Inst Rech Subatom, Strasbourg, France.
   Kent State Univ, Kent, OH 44242 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
   Michigan State Univ, E Lansing, MI 48824 USA.
   Moscow Engn Phys Inst, Moscow 115409, Russia.
   CUNY City Coll, New York, NY 10031 USA.
   Ohio State Univ, Columbus, OH 43210 USA.
   Penn State Univ, University Pk, PA 16802 USA.
   Inst High Energy Phys, Protvino, Russia.
   Purdue Univ, W Lafayette, IN 47907 USA.
   Rice Univ, Houston, TX 77251 USA.
   Univ Sao Paulo, Sao Paulo, Brazil.
   SUBATECH, Nantes, France.
   Texas A&M Univ, College Stn, TX 77843 USA.
   Univ Texas, Austin, TX 78712 USA.
   Warsaw Univ Technol, Warsaw, Poland.
   Univ Washington, Seattle, WA 98195 USA.
   Wayne State Univ, Detroit, MI 48201 USA.
   CCNU, HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
   Yale Univ, New Haven, CT 06520 USA.
RP Adams, J (reprint author), Univ Birmingham, Birmingham, W Midlands, England.
RI Skoro, Goran/P-1229-2014; Skoro, Goran/F-3642-2010; Barnby,
   Lee/G-2135-2010; Takahashi, Jun/B-2946-2012; Chen, Yu/E-3788-2012;
   Planinic, Mirko/E-8085-2012; Witt, Richard/H-3560-2012; Castillo
   Castellanos, Javier/G-8915-2013; Voloshin, Sergei/I-4122-2013; Johnson,
   Ian/I-2439-2013; Lednicky, Richard/K-4164-2013; Zborovsky,
   Imrich/G-7964-2014; Sumbera, Michal/O-7497-2014; Strikhanov,
   Mikhail/P-7393-2014; Kisiel, Adam/O-8754-2015; Tikhomirov,
   Vladimir/M-6194-2015; Chaloupka, Petr/E-5965-2012; Suaide,
   Alexandre/L-6239-2016; Okorokov, Vitaly/C-4800-2017
OI Skoro, Goran/0000-0001-7745-9045; Barnby, Lee/0000-0001-7357-9904;
   Takahashi, Jun/0000-0002-4091-1779; Castillo Castellanos,
   Javier/0000-0002-5187-2779; Sumbera, Michal/0000-0002-0639-7323;
   Strikhanov, Mikhail/0000-0003-2586-0405; Kisiel,
   Adam/0000-0001-8322-9510; Tikhomirov, Vladimir/0000-0002-9634-0581;
   Suaide, Alexandre/0000-0003-2847-6556; Okorokov,
   Vitaly/0000-0002-7162-5345
NR 21
TC 70
Z9 70
U1 0
U2 4
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 172301
DI 10.1103/PhysRevLett.90.172301
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800014
PM 12786068
ER

PT J
AU Carr, ST
   Tsvelik, AM
AF Carr, ST
   Tsvelik, AM
TI Spectrum and correlation functions of a quasi-one-dimensional quantum
   Ising model
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID FIELD-THEORIES; SPIN; DYNAMICS
AB For a model of weakly coupled quantum Ising chains we outline the phase diagram and establish that well below the transition line the system has a remarkably one-dimensional spectrum. We study the dynamical magnetic susceptibility and find a very rich spectrum with several modes corresponding to a fundamental particle and its bound states. The approach is based on the Bethe ansatz and the random phase approximation applied to the interchain exchange.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
   Univ Oxford, Dept Theoret Phys, Oxford OX1 3NP, England.
RP Carr, ST (reprint author), Brookhaven Natl Lab, Dept Phys, Bldg 510A, Upton, NY 11973 USA.
RI Carr, Sam/E-5141-2011; Carr, Sam/M-2264-2013
OI Carr, Sam/0000-0001-7527-0783; Carr, Sam/0000-0001-9995-4944
NR 20
TC 15
Z9 15
U1 0
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 177206
DI 10.1103/PhysRevLett.90.177206
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800048
PM 12786102
ER

PT J
AU Chernyshev, AL
   Fishman, RS
AF Chernyshev, AL
   Fishman, RS
TI Spin diffusion in double-exchange manganites
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID COLOSSAL-MAGNETORESISTANCE; FERROMAGNETIC TRANSITION; INFINITE
   DIMENSIONS; MODEL; TEMPERATURE; DYNAMICS; PHASE
AB The theoretical study of spin diffusion in double-exchange magnets by means of dynamical mean-field theory is presented. We demonstrate that the spin-diffusion coefficient becomes independent of the Hund's coupling J(H) in the range of parameters J(H)S>W>T, W being the bandwidth, relevant to colossal magnetoresistive manganites in the metallic part of their phase diagram. Our study reveals a close correspondence as well as some counterintuitive differences between the results on Bethe and hypercubic lattices. Our results are in accord with neutron-scattering data and with previous theoretical work for high temperatures.
C1 Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
   Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA.
RP Chernyshev, AL (reprint author), Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
RI Fishman, Randy/C-8639-2013
NR 30
TC 10
Z9 10
U1 0
U2 0
PU AMERICAN PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 177202
DI 10.1103/PhysRevLett.90.177202
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800044
PM 12786098
ER

PT J
AU Gando, Y
   Fukuda, S
   Fukuda, Y
   Ishitsuka, M
   Itow, Y
   Kajita, T
   Kameda, J
   Kaneyuki, K
   Kobayashi, K
   Koshio, Y
   Miura, M
   Moriyama, S
   Nakahata, M
   Nakayama, S
   Namba, T
   Obayashi, Y
   Okada, A
   Ooyabu, T
   Saji, C
   Sakurai, N
   Shiozawa, M
   Suzuki, Y
   Takeuchi, H
   Takeuchi, Y
   Totsuka, Y
   Yamada, S
   Desai, S
   Earl, M
   Kearns, E
   Messier, MD
   Stone, JL
   Sulak, LR
   Walter, CW
   Goldhaber, M
   Barszczak, T
   Casper, D
   Gajewski, W
   Kropp, WR
   Mine, S
   Liu, DW
   Smy, MB
   Sobel, HW
   Vagins, MR
   Gago, A
   Ganezer, KS
   Hill, J
   Keig, WE
   Ellsworth, RW
   Tasaka, S
   Kibayashi, A
   Learned, JG
   Matsuno, S
   Takemori, D
   Hayato, Y
   Ichikawa, AK
   Ishii, T
   Kobayashi, T
   Maruyama, T
   Nakamura, K
   Oyama, Y
   Sakuda, M
   Yoshida, M
   Kohama, M
   Iwashita, T
   Suzuki, AT
   Inagaki, T
   Kato, I
   Nakaya, T
   Nishikawa, K
   Haines, TJ
   Dazeley, S
   Hatakeyama, S
   Svoboda, R
   Blaufuss, E
   Chen, ML
   Goodman, JA
   Guillian, G
   Sullivan, GW
   Turcan, D
   Scholberg, K
   Habig, A
   Ackermann, M
   Jung, CK
   Martens, K
   Malek, M
   Mauger, C
   McGrew, C
   Sharkey, E
   Viren, B
   Yanagisawa, C
   Toshito, T
   Mitsuda, C
   Miyano, K
   Shibata, T
   Kajiyama, Y
   Nagashima, Y
   Nitta, K
   Takita, M
   Kim, HI
   Kim, SB
   Yoo, J
   Okazawa, H
   Ishizuka, T
   Etoh, M
   Hasegawa, T
   Inoue, K
   Ishihara, K
   Shirai, J
   Suzuki, A
   Koshiba, M
   Hatakeyama, Y
   Ichikawa, Y
   Koike, M
   Nishijima, K
   Ishino, H
   Morii, M
   Nishimura, R
   Watanabe, Y
   Kielczewska, D
   Berns, HG
   Boyd, SC
   Stachyra, AL
   Wilkes, RJ
AF Gando, Y
   Fukuda, S
   Fukuda, Y
   Ishitsuka, M
   Itow, Y
   Kajita, T
   Kameda, J
   Kaneyuki, K
   Kobayashi, K
   Koshio, Y
   Miura, M
   Moriyama, S
   Nakahata, M
   Nakayama, S
   Namba, T
   Obayashi, Y
   Okada, A
   Ooyabu, T
   Saji, C
   Sakurai, N
   Shiozawa, M
   Suzuki, Y
   Takeuchi, H
   Takeuchi, Y
   Totsuka, Y
   Yamada, S
   Desai, S
   Earl, M
   Kearns, E
   Messier, MD
   Stone, JL
   Sulak, LR
   Walter, CW
   Goldhaber, M
   Barszczak, T
   Casper, D
   Gajewski, W
   Kropp, WR
   Mine, S
   Liu, DW
   Smy, MB
   Sobel, HW
   Vagins, MR
   Gago, A
   Ganezer, KS
   Hill, J
   Keig, WE
   Ellsworth, RW
   Tasaka, S
   Kibayashi, A
   Learned, JG
   Matsuno, S
   Takemori, D
   Hayato, Y
   Ichikawa, AK
   Ishii, T
   Kobayashi, T
   Maruyama, T
   Nakamura, K
   Oyama, Y
   Sakuda, M
   Yoshida, M
   Kohama, M
   Iwashita, T
   Suzuki, AT
   Inagaki, T
   Kato, I
   Nakaya, T
   Nishikawa, K
   Haines, TJ
   Dazeley, S
   Hatakeyama, S
   Svoboda, R
   Blaufuss, E
   Chen, ML
   Goodman, JA
   Guillian, G
   Sullivan, GW
   Turcan, D
   Scholberg, K
   Habig, A
   Ackermann, M
   Jung, CK
   Martens, K
   Malek, M
   Mauger, C
   McGrew, C
   Sharkey, E
   Viren, B
   Yanagisawa, C
   Toshito, T
   Mitsuda, C
   Miyano, K
   Shibata, T
   Kajiyama, Y
   Nagashima, Y
   Nitta, K
   Takita, M
   Kim, HI
   Kim, SB
   Yoo, J
   Okazawa, H
   Ishizuka, T
   Etoh, M
   Hasegawa, T
   Inoue, K
   Ishihara, K
   Shirai, J
   Suzuki, A
   Koshiba, M
   Hatakeyama, Y
   Ichikawa, Y
   Koike, M
   Nishijima, K
   Ishino, H
   Morii, M
   Nishimura, R
   Watanabe, Y
   Kielczewska, D
   Berns, HG
   Boyd, SC
   Stachyra, AL
   Wilkes, RJ
CA Super-Kamiokande Collaboration
TI Search for (nu)over-bar(e) from the Sun at Super-Kamiokande-I
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NEUTRINO OSCILLATION PARAMETERS; SOLAR ANTINEUTRINOS; ENERGY-SPECTRUM;
   DECAY; B-8; SUPERKAMIOKANDE; FLUX
AB We present the results of a search for low energy (nu) over bar (e) from the Sun using 1496 days of data from Super-Kamiokande-I. We observe no significant excess of events and set an upper limit for the conversion probability to (nu) over bar (e) of the B-8 solar neutrino. This conversion limit is 0.8% (90% C.L.) of the standard solar model's neutrino flux for total energy=8-20 MeV. We also set a flux limit for monochromatic (nu) over bar (e) for E-(nu) over bare=10-17 MeV.
C1 Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan.
   Univ Tokyo, Inst Cosm Ray Res, Chiba 2778582, Japan.
   Boston Univ, Dept Phys, Boston, MA 02215 USA.
   Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
   Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA.
   Calif State Univ Dominguez Hills, Dept Phys, Carson, CA 90747 USA.
   George Mason Univ, Dept Phys, Fairfax, VA 22030 USA.
   Gifu Univ, Dept Phys, Gifu 5011193, Japan.
   Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA.
   High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan.
   Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan.
   Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
   Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87544 USA.
   Louisiana State Univ, Dept Phys & Astron, Baton Rouge, LA 70803 USA.
   Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
   MIT, Dept Phys, Cambridge, MA 02139 USA.
   Univ Minnesota, Dept Phys, Duluth, MN 55812 USA.
   SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA.
   Nagoya Univ, Dept Phys, Aichi 4648602, Japan.
   Niigata Univ, Dept Phys, Niigata 9502181, Japan.
   Osaka Univ, Dept Phys, Osaka 5600043, Japan.
   Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea.
   Shizuoka Seika Coll, Shizuoka 4258611, Japan.
   Shizuoka Univ, Dept Syst Engn, Shizuoka 4328561, Japan.
   Univ Tokyo, Tokyo 1130033, Japan.
   Tokai Univ, Dept Phys, Kanagawa 2591292, Japan.
   Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan.
   Univ Warsaw, Inst Expt Phys, PL-00681 Warsaw, Poland.
   Univ Washington, Dept Phys, Seattle, WA 98195 USA.
RP Gando, Y (reprint author), Tohoku Univ, Res Ctr Neutrino Sci, Sendai, Miyagi 9808578, Japan.
RI Takeuchi, Yasuo/A-4310-2011; Yoo, Jonghee/K-8394-2016; Nakamura,
   Kenzo/F-7174-2010; Sobel, Henry/A-4369-2011; Suzuki,
   Yoichiro/F-7542-2010; Martens, Kai/A-4323-2011; Wilkes,
   R.Jeffrey/E-6011-2013; Kim, Soo-Bong/B-7061-2014; Sakurai,
   Nobuyuki/M-5009-2014; Ishino, Hirokazu/C-1994-2015; Koshio,
   Yusuke/C-2847-2015; Kibayashi, Atsuko/K-7327-2015; Obayashi,
   Yoshihisa/A-4472-2011
OI Sakurai, Nobuyuki/0000-0002-1002-217X; Ishino,
   Hirokazu/0000-0002-8623-4080; Koshio, Yusuke/0000-0003-0437-8505; 
NR 23
TC 46
Z9 46
U1 0
U2 2
PU AMERICAN PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 171302
DI 10.1103/PhysRevLett.90.171302
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800013
PM 12786067
ER

PT J
AU Glenzer, SH
   Gregori, G
   Lee, RW
   Rogers, FJ
   Pollaine, SW
   Landen, OL
AF Glenzer, SH
   Gregori, G
   Lee, RW
   Rogers, FJ
   Pollaine, SW
   Landen, OL
TI Demonstration of spectrally resolved x-ray scattering in dense plasmas
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID DIFFRACTION; STATE
AB We present the first spectrally resolved x-ray scattering measurements from solid-density plasmas. The scattering spectra show the broadened Compton down-shifted feature allowing us to determine the electron temperature and density with high accuracy. In the low temperature limit, our data indicate that the ionization balance reflects the electrons in the conduction band consistent with calculations that include quantum mechanical corrections to the interaction potential.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Glenzer, SH (reprint author), Lawrence Livermore Natl Lab, L-399,POB 808, Livermore, CA 94551 USA.
NR 22
TC 175
Z9 178
U1 3
U2 15
PU AMERICAN PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 175002
DI 10.1103/PhysRevLett.90.175002
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800023
PM 12786077
ER

PT J
AU Koshelev, AE
   Golubov, AA
AF Koshelev, AE
   Golubov, AA
TI Mixed state of a dirty two-band superconductor: Application to MgB2
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID POINT-CONTACT SPECTROSCOPY; 2-BAND SUPERCONDUCTIVITY; TUNNELING
   SPECTROSCOPY; MAGNESIUM DIBORIDE; JUNCTIONS; HEAT
AB We investigate the vortex state in a two-band superconductor with strong intraband and weak interband electronic scattering rates. Coupled Usadel equations are solved numerically, and the distributions of the pair potentials and local densities of states are calculated for two bands at different values of magnetic fields. The existence of two distinct length scales corresponding to different bands is demonstrated. The results provide qualitative interpretation of recent scanning tunneling microscopy experiments on vortex structure imaging in MgB2.
C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Univ Twente, Dept Appl Phys, NL-7500 AE Enschede, Netherlands.
RP Koshelev, AE (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Koshelev, Alexei/K-3971-2013
OI Koshelev, Alexei/0000-0002-1167-5906
NR 34
TC 94
Z9 95
U1 1
U2 8
PU AMERICAN PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 177002
DI 10.1103/PhysRevLett.90.177002
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800042
PM 12786096
ER

PT J
AU Liu, J
   Wu, B
   Niu, Q
AF Liu, J
   Wu, B
   Niu, Q
TI Nonlinear evolution of quantum states in the adiabatic regime
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID BOSE-EINSTEIN CONDENSATE; DYNAMICS; LANDAU; PHASE; ATOMS
AB We investigate adiabatic evolution of quantum states as governed by the nonlinear Schrodinger equation and provide examples of applications with a nonlinear tunneling model for Bose-Einstein condensates. Our analysis not only spells out conditions for adiabatic evolution of eigenstates but also characterizes the motion of noneigenstates which cannot be obtained from the former in the absence of the superposition principle. We find that Aharonov-Anandan phases play the role of classical canonical actions and are conserved in the adiabatic evolution of noneigenstates.
C1 Univ Texas, Dept Phys, Austin, TX 78712 USA.
   Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA.
RP Liu, J (reprint author), Univ Texas, Dept Phys, Austin, TX 78712 USA.
RI Wu, Biao/B-3329-2008; Niu, Qian/G-9908-2013
OI Wu, Biao/0000-0001-9229-5894; 
NR 37
TC 157
Z9 165
U1 5
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 170404
DI 10.1103/PhysRevLett.90.170404
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800004
PM 12786058
ER

PT J
AU Pierce, MS
   Moore, RG
   Sorensen, LB
   Kevan, SD
   Hellwig, O
   Fullerton, EE
   Kortright, JB
AF Pierce, MS
   Moore, RG
   Sorensen, LB
   Kevan, SD
   Hellwig, O
   Fullerton, EE
   Kortright, JB
TI Quasistatic x-ray speckle metrology of microscopic magnetic return-point
   memory
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID STRIPE DOMAIN-STRUCTURES; THIN FERROMAGNETIC FILM; BARKHAUSEN NOISE;
   MESOSCOPIC NOISE; DIFFRACTION; HYSTERESIS; SCATTERING; RECONSTRUCTION;
   AVALANCHES
AB We have used coherent, resonant, x-ray magnetic speckle patterns to measure the statistical evolution of the microscopic magnetic domains in perpendicular magnetic films as a function of the applied magnetic field. Our work constitutes the first direct, ensemble-averaged study of microscopic magnetic return-point memory, and demonstrates the profound impact of interfacial roughness on this phenomenon. At low fields, the microscopic magnetic domains forget their past history with an exponential field dependence.
C1 Univ Washington, Dept Phys, Seattle, WA 98195 USA.
   Univ Oregon, Dept Phys, Eugene, OR 97403 USA.
   Hitachi Global Storage Technol, San Jose, CA 95120 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Pierce, MS (reprint author), Univ Washington, Dept Phys, Seattle, WA 98195 USA.
RI Kevan, Stephen/F-6415-2010; Fullerton, Eric/H-8445-2013; Pierce,
   Michael/D-5570-2014
OI Kevan, Stephen/0000-0002-4621-9142; Fullerton, Eric/0000-0002-4725-9509;
   Pierce, Michael/0000-0002-9209-8556
NR 34
TC 63
Z9 64
U1 0
U2 20
PU AMERICAN PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 175502
DI 10.1103/PhysRevLett.90.175502
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800026
PM 12786080
ER

PT J
AU Vaknin, D
   Kruger, P
   Losche, M
AF Vaknin, D
   Kruger, P
   Losche, M
TI Anomalous x-ray reflectivity characterization of ion distribution at
   biomimetic membranes
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SURFACE MONOLAYERS; NUCLEATION; INTERFACE; MODEL; ELECTROSTATICS;
   DIFFRACTION; GROWTH; FILMS
AB Anomalous x-ray reflectivity measurements provides detailed information on ion binding to biomembrane surfaces. Using a monochromatic beam tuned to various x-ray energies at the Argonne National Laboratory Advanced Photon Source and utilizing a newly commissioned x-ray liquid surfaces reflectometer, measurements at and away from ion absorption edges allow determination of the distribution of these ions as they accumulate near lipid membranes. As a model, the interaction of Ba2+ ions with DMPA(-) (1,2-dimyristoyl-sn-glycero-3-phosphatidic acid) monolayers at the aqueous surface is studied. We find an unexpectedly large concentration of barium at the interface, approximate to1.5 per DMPA(-), forming a Stern layer of bound ions and a cloud of less densely bound ions near the lipid headgroups. This result can be understood only if one assumes that bound cations are partially speciated, e.g., as BaOH+.
C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
   Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
   Univ Leipzig, Inst Expt Phys 1, D-04103 Leipzig, Germany.
   Johns Hopkins Univ, Dept Chem & Biomol Engn, Baltimore, MD 21218 USA.
RP Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RI Losche, Mathias/J-2986-2013; Vaknin, David/B-3302-2009
OI Losche, Mathias/0000-0001-6666-916X; Vaknin, David/0000-0002-0899-9248
FU NCRR NIH HHS [1 R01 RR14812]
NR 23
TC 52
Z9 52
U1 1
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
EI 1079-7114
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD MAY 2
PY 2003
VL 90
IS 17
AR 178102
DI 10.1103/PhysRevLett.90.178102
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 673WT
UT WOS:000182603800053
PM 12786107
ER

PT J
AU Misewich, JA
   Martel, R
   Avouris, P
   Tsang, JC
   Heinze, S
   Tersoff, J
AF Misewich, JA
   Martel, R
   Avouris, P
   Tsang, JC
   Heinze, S
   Tersoff, J
TI Electrically induced optical emission from a carbon nanotube FET
SO SCIENCE
LA English
DT Article
ID INDIUM-PHOSPHIDE NANOWIRES; SINGLE-WALL; TRANSISTORS; TRANSPORT;
   CIRCUITS; GROWTH
AB Polarized infrared optical emission was observed from a carbon nanotube ambipolar field-effect transistor (FET). An effective forward-biased p-n junction, without chemical dopants, was created in the nanotube by appropriately biasing the nanotube device. Electrical measurements show that the observed optical emission originates from radiative recombination of electrons and holes that are simultaneously injected into the undoped nanotube. These observations are consistent with a nanotube FET model in which thin Schottky barriers form at the source and drain contacts. This arrangement is a novel optical recombination radiation source in which the electrons and holes are injected into a nearly field-free region. Such a source may form the basis for ultrasmall integrated photonic devices.
C1 IBM Corp, Div Res, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA.
RP Misewich, JA (reprint author), Brookhaven Natl Lab, Dept Mat Sci, Upton, NY 11973 USA.
RI Martel, Richard/G-7589-2011; 李, 府中/H-4357-2011
OI Martel, Richard/0000-0002-9021-4656; 
NR 21
TC 683
Z9 693
U1 15
U2 144
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD MAY 2
PY 2003
VL 300
IS 5620
BP 783
EP 786
DI 10.1126/science.1081294
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 673KH
UT WOS:000182579800046
PM 12730598
ER

PT J
AU Spence, JCH
   Wu, JS
   Giacovazzo, C
   Carrozzini, B
   Cascarano, GL
   Padmore, HA
AF Spence, JCH
   Wu, JS
   Giacovazzo, C
   Carrozzini, B
   Cascarano, GL
   Padmore, HA
TI Solving non-periodic structures using direct methods: phasing diffuse
   scattering
SO ACTA CRYSTALLOGRAPHICA SECTION A
LA English
DT Article
ID DIFFRACTION
AB The problem of reconstructing the charge density of a non-periodic sample from its diffuse X-ray scattering is considered. For a sample known to be isolated, an artificial superlattice may be assumed and the numerical direct methods of crystallography applied to the continuous distribution of diffuse scattering in order to solve the phase problem. This method is applied to simulated soft-X-ray transmission speckle patterns from a two-dimensional array of gold balls of 50 nm diameter. The results are relevant to efforts to phase the scattering from many individual macromolecules that cannot be crystallized, and to the scattering from individual inorganic nanoparticles.
C1 Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA.
   Univ Bari, Dipartimento Geomineral, Ist Cristallog, I-70125 Bari, Italy.
   Lawrence Berkeley Lab, Berkeley, CA 94729 USA.
RP Spence, JCH (reprint author), Arizona State Univ, Dept Phys & Astron, Tempe, AZ 85287 USA.
RI Carrozzini, Benedetta/N-5278-2015; 
OI Carrozzini, Benedetta/0000-0001-9052-0074; CASCARANO, GIOVANNI
   LUCA/0000-0001-8252-5254
NR 13
TC 8
Z9 8
U1 0
U2 2
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 MAY
PY 2003
VL 59
BP 255
EP 261
DI 10.1107/S0108767303005233
PN 3
PG 7
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA 672WX
UT WOS:000182547000008
PM 12714777
ER

PT J
AU Ramagopal, UA
   Dauter, M
   Dauter, Z
AF Ramagopal, UA
   Dauter, M
   Dauter, Z
TI SAD manganese in two crystal forms of glucose isomerase
SO ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
LA English
DT Article
ID D-XYLOSE ISOMERASE; ELECTRON-DENSITY MAPS; ANOMALOUS SCATTERING;
   ANGSTROM RESOLUTION; S-ATOMS; MACROMOLECULAR CRYSTALLOGRAPHY; PROTEIN;
   SULFUR; REFINEMENT; MECHANISM
AB Glucose isomerase from Streptomyces rubiginosus was crystallized in two forms: I222, with one molecule of 44 kDa in the asymmetric unit, and P2(1)2(1)2, with two unique molecules. The I222 structure is known, but the P21212 form has not been solved before. X-ray diffraction data for the P21212 form were collected at a wavelength of 1.54 Angstrom and data for the I222 form were collected at three different wavelengths: 1.34, 1.07 and 0.98 Angstrom. The amount of anomalous signal from one Mn and eight S atoms in these data sets varies from 1.24% to as low as 0.56%. The dual-space direct-methods program SHELXD, run against the Bijvoet differences, gave a clear solution of all anomalous scatterers for all data sets. The Mn positions only were used for SAD phasing of all four data sets. The electron-density map after density modification, resulting from the phasing of a single-wavelength data set and based purely on the anomalous deltaf" contribution, was clearly interpretable; an almost complete model of the protein was built by wARP without human intervention in all four cases. As far as is known, this is the first time that an anomalous signal as low as 0.6% has successfully been used to determine the structure of a macromolecule.
C1 SAIC Frederick Inc, Brookhaven Natl Lab, Upton, NY 11973 USA.
   NCI, Synchrotron Radiat Res Sect, Brookhaven Natl Lab, Upton, NY 11973 USA.
RP Dauter, Z (reprint author), SAIC Frederick Inc, Brookhaven Natl Lab, Bldg 725A-X9, Upton, NY 11973 USA.
NR 40
TC 27
Z9 28
U1 1
U2 3
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 MAY
PY 2003
VL 59
BP 868
EP 875
DI 10.1107/S0907444903005663
PN 5
PG 8
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
   Biophysics; Crystallography
SC Biochemistry & Molecular Biology; Biophysics; Crystallography
GA 672WW
UT WOS:000182546900011
PM 12777803
ER

PT J
AU Lowe, TC
   Zhu, YT
AF Lowe, TC
   Zhu, YT
TI Commercialization of nanostructured metals produced by severe plastic
   deformation processing
SO ADVANCED ENGINEERING MATERIALS
LA English
DT Article; Proceedings Paper
CT 2nd International Conference on Nanomaterials by Severe Plastic
   Deformation (SPD): Fundamentals Processing Applications
CY 2002
CL VIENNA UNIV, VIENNA, AUSTRIA
HO VIENNA UNIV
ID SUPERPLASTICITY; BEHAVIOR
AB The promise of nanotechnology is increasingly being realized as governments, universities, public and private research laboratories, and the various industrial sectors devote resources to this emerging area. Estimates for the economic impact of nanotechnology on existing global markets exceed $700 billion by the year 2008. Nanomaterials are projected to be one of the earliest components of nanotechnology to appear in commercial applications. Amongst the emerging new nanomaterials, bulk nanostructures metals produced by severe plastic deformation (SPD) have shown promise in a wide range of application areas. In this paper, we overview developments in severe plastic deformation technology, emphasizing progress, since the international workshop "Investigations and Applications of Severe Plastic Deformation" held 2-8 August 1999 in Moscow, Russia. Then, we overview some of principal areas of application for SPD metals and alloys.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Lowe, TC (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
EM tlowe@lanl.gov
RI Zhu, Yuntian/B-3021-2008
OI Zhu, Yuntian/0000-0002-5961-7422
NR 18
TC 35
Z9 36
U1 0
U2 7
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1438-1656
J9 ADV ENG MATER
JI Adv. Eng. Mater.
PD MAY
PY 2003
VL 5
IS 5
BP 373
EP 378
DI 10.1002/adem.200310076
PG 6
WC Materials Science, Multidisciplinary
SC Materials Science
GA 693GD
UT WOS:000183708000020
ER

PT J
AU Coe, BJ
   Harris, JA
   Asselberghs, I
   Wostyn, K
   Clays, K
   Persoons, A
   Brunschwig, BS
   Coles, SJ
   Gelbrich, T
   Light, ME
   Hursthouse, MB
   Nakatani, K
AF Coe, BJ
   Harris, JA
   Asselberghs, I
   Wostyn, K
   Clays, K
   Persoons, A
   Brunschwig, BS
   Coles, SJ
   Gelbrich, T
   Light, ME
   Hursthouse, MB
   Nakatani, K
TI Quadratic optical nonlinearities of N-methyl and N-aryl pyridinium salts
SO ADVANCED FUNCTIONAL MATERIALS
LA English
DT Article
ID HYPER-RAYLEIGH SCATTERING; HIGH-FREQUENCY DEMODULATION; TRANSITION-METAL
   COMPLEXES; CHARGE-TRANSFER STATES; ELECTROABSORPTION SPECTROSCOPY;
   MOLECULAR HYPERPOLARIZABILITY; MULTIPHOTON FLUORESCENCE; ORGANIC SALTS;
   ENHANCEMENT; CHROMOPHORES
AB Four series of dyes with dimethylamino electron donor groups and N-R-pyridinium (R = methyl Me, phenyl Ph, 2,4-dinitrophenyl 2,4-DNPh, or 2-pyrimidyl 2-Pym) electron acceptors are studied as their hexafluorophosphate salts. The intramolecular charge-transfer (ICT) energies (E-max) of these compounds decrease within each of the series in the order R = Me > Ph > 2,4-DNPh > 2-Pym, as the electron-accepting ability of the pyridinium ring increases. Hyper-Rayleigh scattering with femtosecond 1300 or 800 nm losers yields fluorescence-free first hyperpolarizabilities beta, and static first hyperpolarizabilities beta(0)[H] are obtained via the two-state model. Dipole moment changes Deltamu(12) for the ICT transitions obtained from Stark spectroscopy afford beta(0)[S] values by using beta(0) = 3Deltamu(12)(mu(12))(2)/2 (E-max)(2) (mu(12) = transition dipole moment). The beta(0)[S] data show that the combination of pyridyl N-arylation with conjugation extension affords large increases in beta(0). The beta(0)[H] data generally agree with this conclusion, but resonance effects may explain some apparent anomalies. X-ray structural studies on various salts reveal that the use of tosylate anions is not a generally applicable approach to engineering noncentrosymmetric structures of pyridinium salts. However, trans-N-phenyl-4-(4-dimethylaminophenyl-4-buta-1,3-dienyl)pyridinium hexafluorophosphate adopts the polar space group Cc, and shows a very large powder second harmonic generation efficiency from a 1907 nm laser; which is similar to that of the well-studied material trans-4'-(dimethylamino)-N-methyl-4-stilbazolium tosylate (DAST).
C1 Univ Manchester, Dept Chem, Manchester M13 9PL, Lancs, England.
   Univ Louvain, Ctr Res Mol Elect & Photon, Lab Chem & Biol Dynam, B-3001 Heverlee, Belgium.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   Univ Southampton, Dept Chem, Hursthouse EPSRC Xray Crystallog Serv, Southampton SO17 1BJ, Hants, England.
   Ecole Normale Super, URA 1906, F-94235 Cachan, France.
RP Coe, BJ (reprint author), Univ Manchester, Dept Chem, Oxford Rd, Manchester M13 9PL, Lancs, England.
EM b.coe@man.ac.uk
RI Coles, Simon/A-1795-2009; Light, Mark/B-6555-2009; Hursthouse,
   Michael/B-9885-2011; Brunschwig, Bruce/G-4249-2011; Gelbrich,
   Thomas/A-8739-2013
OI Coles, Simon/0000-0001-8414-9272; Light, Mark/0000-0002-0585-0843;
   Hursthouse, Michael/0000-0002-9492-054X; 
NR 61
TC 111
Z9 111
U1 1
U2 17
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1616-301X
EI 1616-3028
J9 ADV FUNCT MATER
JI Adv. Funct. Mater.
PD MAY
PY 2003
VL 13
IS 5
BP 347
EP 357
DI 10.1002/adfm200300026
PG 11
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
   Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
   Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
   Physics
GA 679KK
UT WOS:000182920900001
ER

PT J
AU Hu, BX
   Wu, JC
   Panorska, AK
   Zhang, DX
   He, CM
AF Hu, BX
   Wu, JC
   Panorska, AK
   Zhang, DX
   He, CM
TI Stochastic study on groundwater flow and solute transport in a porous
   medium with multi-scale heterogeneity
SO ADVANCES IN WATER RESOURCES
LA English
DT Article
DE heterogeneity; multi-scale; groundwater flow; solute transport
ID FLUX APPROACH; CONDUCTIVITY; VARIABILITY; SAND
AB In this study, a numerical moment method (NMM) is applied to study groundwater flow and solute transport in a multiple-scale heterogeneous formation. The formation is composed of various materials and conductivity distribution within each material is heterogeneous. The distribution of materials in the study domain is characterized by an indicator function and the conductivity field within each material is assumed to be statistically stationary. Based on this assumption, the covariance function of log-hydraulic conductivity in the composite field is analytically derived and expressed in terms of the covariance of the indicator function and the statistics of log conductivity in every material. The NMM is used to investigate the effects of various uncertain parameters on flow and transport predictions in two case studies. It is shown from the case studies that the two-scale stochastic processes will both significantly influence the flow and transport predictions, especially for the variances of hydraulic head and solute fluxes. The case studies also show that the NMM can be used to study flow and transport in complex subsurface environments. In comparison with Monte Carlo simulation, NMM results are consistent with those obtained by Monte Carlo simulation method even when the total variance of log conductivity is larger than 1. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Desert Res Inst, Div Hydrol Sci, Las Vegas, NV 89119 USA.
   Univ Nevada, Hydrol Program, Reno, NV 89557 USA.
   Nanjing Univ, Dept Earth Sci, Nanjing 210093, Peoples R China.
   Los Alamos Natl Lab, Hydrol & Geochem & Geol Grp, Los Alamos, NM 87545 USA.
RP Hu, BX (reprint author), Desert Res Inst, Div Hydrol Sci, Las Vegas, NV 89119 USA.
EM hu@dri.edu
RI Zhang, Dongxiao/D-5289-2009
OI Zhang, Dongxiao/0000-0001-6930-5994
NR 32
TC 3
Z9 5
U1 2
U2 11
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0309-1708
EI 1872-9657
J9 ADV WATER RESOUR
JI Adv. Water Resour.
PD MAY
PY 2003
VL 26
IS 5
BP 541
EP 560
DI 10.1016/S0309-1708(03)00003-4
PG 20
WC Water Resources
SC Water Resources
GA 668FF
UT WOS:000182279100006
ER

PT J
AU Bandaranayake, W
   Qian, YL
   Parton, WJ
   Ojima, DS
   Follett, RF
AF Bandaranayake, W
   Qian, YL
   Parton, WJ
   Ojima, DS
   Follett, RF
TI Estimation of soil organic carbon changes in turfgrass systems using the
   CENTURY model
SO AGRONOMY JOURNAL
LA English
DT Article; Proceedings Paper
CT Symposium on Use of Soil Electrical Conductivity in Precision
   Agriculture
CY NOV   08, 2000
CL MINNEAPOLIS, MINNESOTA
ID GREAT-PLAINS; WHEAT-FALLOW; SEQUESTRATION; DECOMPOSITION; NITROGEN;
   DYNAMICS
AB Soil organic C (SOC) directly affects soil quality by influencing aeration and water retention and serving as a major repository and reserve source of plant nutrients. Limited information is available concerning the long-term SOC changes in turfgrass systems. The CENTURY simulation model offers an opportunity to predict long-term SOC trends based on mathematical representations of C-cycling processes in the soil-plant systems. The objectives of this study were to (i) evaluate the ability and effectiveness of the CENTURY model to simulate the long-term SOC dynamics in highly managed turfgrass ecosystems and (ii) simulate long-term SOC changes for golf course fairway and putting green scenarios with the CENTURY model. The CENTURY model simulations near Denver and Fort Collins, CO, indicate that turfgrass systems can serve as a C sink following establishment. Model estimates are that 23 to 32 Mg ha(-1) SOC were sequestered in the 0 to 20 cm below the soil surface after about 30 yr. Historic soil-testing data from parts of 16 golf courses with age ranging from 1 to 45 yr were used to compare with the simulated results. Model predictions of organic C accumulation compared reasonably well with observed SOC, with regression coefficients of 0.67 for fairways and 0.83 for putting greens. Our results suggest that the CENTURY model can be used to simulate SOC changes in turfgrass systems and has the potential to compare C sequestration under various turf management conditions. Simulation results also suggest that warming temperatures have greater degree of influence on SOC in turf systems compared with native grasslands.
C1 Colorado State Univ, Dept Hort & Landscape Architecture, Ft Collins, CO 80523 USA.
   Colorado State Univ, NREL, Ft Collins, CO 80523 USA.
   USDA ARS, Soil Plant Nutr Res Unit, Ft Collins, CO 80522 USA.
RP Qian, YL (reprint author), Colorado State Univ, Dept Hort & Landscape Architecture, Ft Collins, CO 80523 USA.
RI Ojima, Dennis/C-5272-2016
NR 27
TC 67
Z9 69
U1 3
U2 27
PU AMER SOC AGRONOMY
PI MADISON
PA 677 S SEGOE RD, MADISON, WI 53711 USA
SN 0002-1962
J9 AGRON J
JI Agron. J.
PD MAY-JUN
PY 2003
VL 95
IS 3
BP 558
EP 563
PG 6
WC Agronomy
SC Agriculture
GA 685HJ
UT WOS:000183256300010
ER

PT J
AU Gorelenkov, NN
   Zakharov, LE
   Gorelenkova, MV
AF Gorelenkov, NN
   Zakharov, LE
   Gorelenkova, MV
TI Toroidal plasma thruster for deep space flights
SO AIAA JOURNAL
LA English
DT Article
ID PHYSICS; TOKAMAK; TFTR
AB A conceptual, theoretical assessment of using the toroidal fusion reactor, tokamak, for deep space interplanetary and interstellar missions is presented. Toroidal thermonuclear fusion reactors, such as tokamaks and stellarators, are unique for space propulsion, allowing a design with the magnetic configuration localized inside the toroidal magnetic field coils. Plasma energetic ions, including charged fusion products, can escape such closed configuration at certain conditions as a result of vertical drift in the toroidal rippled magnetic field. Escaping particles can be used for direct propulsion (because toroidal drift is directed one way vertically) or to create and heat externally confined plasma, so that the latter can be used for propulsion. In contrast to other fusion concepts proposed for space propulsion, this concept utilizes the natural drift motion of charged particles out of the closed magnetic field configuration. Also, using deuterium-tritium (D-T) plasma is a novel way to use fusion neutrons with the energy of 14 MeV for direct propulsion ("neutron rocket") for out of solar system missions. A special design of the blanket of the reactor allows neutrons to escape the device in a preferable direction. This provides a direct (partial) conversion of fusion energy into thrust.
C1 Princeton Univ, Plasma Phys Lab, Princeton, NJ 08543 USA.
   Troitsk Inst Innovat & Thermonucl Res, Troitsk 142092, Moscow Region, Russia.
RP Gorelenkov, NN (reprint author), Princeton Univ, Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
NR 30
TC 0
Z9 0
U1 0
U2 0
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0001-1452
J9 AIAA J
JI AIAA J.
PD MAY
PY 2003
VL 41
IS 5
BP 774
EP 784
DI 10.2514/2.2039
PG 11
WC Engineering, Aerospace
SC Engineering
GA 678LW
UT WOS:000182869500003
ER

PT J
AU Boswell, BA
   Dutton, JC
AF Boswell, BA
   Dutton, JC
TI Velocity measurements in a three-dimensional compressible base flow
SO AIAA JOURNAL
LA English
DT Article; Proceedings Paper
CT 40th AIAA Aerospace Sciences and Exhibit Conferene
CY JAN 14-18, 2002
CL RENO, NEVADA
SP Amer Inst Aeronaut & Astronaut
ID FREE SHEAR LAYERS; CYLINDRICAL AFTERBODY; SUPERSONIC-FLOW; PRESSURE
AB The velocity field in the base region of a circular cylinder with a length-to-radius ratio of 3.0 aligned at a 10-deg angle of attack to a nominal Mach 2.5 freestream has been investigated experimentally. The objective is to better understand the mechanisms that govern the characteristics and development of three-dimensional, compressible base flows. Laser Doppler velocimetry was used to measure both mean velocity components and turbulence statistics. The results reveal all expected base How features, including a low-speed recirculation region, a separated shear layer, a reattachment region, and a trailing wake. The distance from the base to the rear stagnation point in this three-dimensional base flow is reduced by 55% as compared to the corresponding axisymmetric base flow. The shear layer in the leeward region of the How turns sharply toward the radial centerline, resulting in a shift of the flow stagnation location toward the windward side of the base flow. In addition, the shear layer in the leeward plane thickens at a substantially faster rate than in either the windward or side planes. The turbulent stresses in the windward region of the shear layer are larger in magnitude than observed in either the leeward or side regions. The peak stresses measured in this three-dimensional base flow are located in the reattachment region, in direct contrast to axisymmetric results, where peak stresses were measured in the shear layer just upstream of reattachment.
C1 Sandia Natl Labs, Dept 2132, Albuquerque, NM 87185 USA.
   Univ Illinois, Dept Mech & Ind Engn, Urbana, IL 61801 USA.
RP Boswell, BA (reprint author), Sandia Natl Labs, Dept 2132, POB 5800, Albuquerque, NM 87185 USA.
NR 24
TC 8
Z9 8
U1 0
U2 1
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0001-1452
J9 AIAA J
JI AIAA J.
PD MAY
PY 2003
VL 41
IS 5
BP 785
EP 794
DI 10.2514/2.2040
PG 10
WC Engineering, Aerospace
SC Engineering
GA 678LW
UT WOS:000182869500004
ER

PT J
AU Stefaniak, AB
   Hoover, MD
   Dickerson, RM
   Peterson, EJ
   Day, GA
   Breysse, PN
   Kent, MS
   Scripsick, RC
AF Stefaniak, AB
   Hoover, MD
   Dickerson, RM
   Peterson, EJ
   Day, GA
   Breysse, PN
   Kent, MS
   Scripsick, RC
TI Surface area of respirable beryllium metal, oxide, and copper alloy
   aerosols and implications for assessment of exposure risk of chronic
   beryllium disease
SO AIHA JOURNAL
LA English
DT Article
DE chronic beryllium disease; dissolution; particles; surface area
ID ALVEOLAR MACROPHAGES; SENSITIZATION; PARTICLES
AB The continued occurrence of chronic beryllium disease (CBD) suggests the current occupational exposure limit of 2 mug beryllium per cubic meter of air does not adequately protect workers. This study examined the morphology and measured the particle surface area of aerodynamically size-separated powders and process-sampled particles of beryllium metal, beryllium oxide, and copper-beryllium alloy. The beryllium metal powder consisted of compact particles, whereas the beryllium oxide powder and particles were clusters of smaller primary particles. Specific surface area (SSA) results for all samples (N=30) varied by a factor of 37, from 0.56 +/- 0.07 m(2)/g (for the 0.4-0.7 mum size fraction of the process-sampled reduction furnace particles) to 20.8 +/- 0.4 m(2)/g (for the less than or equal to0.4 mum size fraction of the metal powder). Large relative differences in SSA were observed as a function of particle size for the powder of beryllium metal, from 4.0 +/- 0.01 m(2)/g (for the particle size fraction >6 mum) to 20.8 +/- 0.44 m(2)/g (for the particle size fraction less than or equal to0.4 mum). In contrast, little relative difference in SSA (<25%) was observed as a function of particle size for the beryllium oxide powder and particles collected from the screening operation. The SSA of beryllium metal powder decreases with increasing particle size, as expected for compact particles, and the SSA of the beryllium oxide powders and particles remains constant as a function of particle size, which might be expected for clustered particles. These associations illustrate how process-related factors can influence the morphology and SSA of beryllium materials. To avoid errors in predicting bioavailability of beryllium and the associated risks for CBD, the mechanisms of particle formation should be understood and the SSA of beryllium particles should be measured directly.
C1 Los Alamos Natl Lab, Ind Hyg & Safety Grp HSR5, Los Alamos, NM 87545 USA.
   Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Div Environm Hlth Engn, Baltimore, MD 21205 USA.
   Lovelace Resp Res Inst, Albuquerque, NM 87185 USA.
   NIOSH, Ctr Dis Control & Prevent, Morgantown, WV USA.
   Los Alamos Natl Lab, Struct Property Relat Grp MST8, Los Alamos, NM 87545 USA.
   Los Alamos Natl Lab, MSTSTC, Los Alamos, NM 87545 USA.
   Los Alamos Natl Lab, Mat Technol & Met Grp MST6, Los Alamos, NM 87545 USA.
   Univ Oklahoma, Hlth Sci Ctr, Oklahoma City, OK 73190 USA.
   Brush Wellman Inc, Elmore, OH 43416 USA.
RP Scripsick, RC (reprint author), Los Alamos Natl Lab, Ind Hyg & Safety Grp HSR5, MS K553, Los Alamos, NM 87545 USA.
RI Stefaniak, Aleksandr/I-3616-2012; Hoover, Mark/I-4201-2012
OI Hoover, Mark/0000-0002-8726-8127
NR 33
TC 40
Z9 41
U1 1
U2 8
PU AMER INDUSTRIAL HYGIENE ASSOC
PI FAIRFAX
PA 2700 PROSPERITY AVE #250, FAIRFAX, VA 22031-4307 USA
SN 1529-8663
J9 AIHA J
JI AIHA J.
PD MAY-JUN
PY 2003
VL 64
IS 3
BP 297
EP 305
DI 10.1080/15428110308984820
PG 9
WC Environmental Sciences; Public, Environmental & Occupational Health
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
   Health
GA 688BT
UT WOS:000183413000001
PM 12809534
ER

PT J
AU Ewsuk, KG
   Arguello, JG
   Bencoe, DN
   Ellerby, DT
   Glass, SJ
   Zeuch, DH
   Anderson, J
AF Ewsuk, KG
   Arguello, JG
   Bencoe, DN
   Ellerby, DT
   Glass, SJ
   Zeuch, DH
   Anderson, J
TI Characterizing powders for dry pressing, sintering
SO AMERICAN CERAMIC SOCIETY BULLETIN
LA English
DT Article
ID ALUMINA POWDERS; COMPACTION; STRENGTH
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
   Univ New Mexico, Adv Mat Lab, Albuquerque, NM 87131 USA.
RP Ewsuk, KG (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 34
TC 5
Z9 6
U1 1
U2 5
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43086-6136 USA
SN 0002-7812
J9 AM CERAM SOC BULL
JI Am. Ceram. Soc. Bull.
PD MAY
PY 2003
VL 82
IS 5
BP 41
EP 47
PG 11
WC Materials Science, Ceramics
SC Materials Science
GA 679GQ
UT WOS:000182912700044
ER

PT J
AU Post, JE
   Heaney, PJ
   Von Dreele, RB
   Hanson, JC
AF Post, JE
   Heaney, PJ
   Von Dreele, RB
   Hanson, JC
TI Neutron and temperature-resolved synchrotron X-ray powder diffraction
   study of akaganeite
SO AMERICAN MINERALOGIST
LA English
DT Article
ID BETA-FEOOH; RIETVELD REFINEMENT; THERMAL-DECOMPOSITION
AB Rietveld refinements using neutron powder diffraction data were used to locate H atom positions and obtain a more precise crystal structure refinement for akaganeite [Fe7.63+Ni0.42+O6.35 (OH)(9.65)Cl(1.25)(.)nH(2)O]. Difference Fourier maps clearly showed H atoms positions near those O atoms at the midpoints of the tunnel edges. The O-H vectors point toward the Cl sites at the center of the tunnel, and weak hydrogen bonds likely form between the framework 0 atoms and Cl. The Cl position is near the center of a prism defined by the eight hydroxyl H atoms. The Cl atoms fill similar to2/3 of the tunnel sites, suggesting an ordering scheme in a given tunnel with every third tunnel site vacant. Such an arrangement allows the Cl anions to increase their separation distance along a tunnel by displacing away from one another toward their respective adjacent vacancies. The Fe-O octahedra in akaganeite are distorted with Fe-(O, OH) distances ranging from 1.94 to 2.13 Angstrom and show three longer and three shorter Fe-O distances; as expected the longer distances are associated with the OH- anions.
   Temperature-resolved synchrotron X-ray powder diffraction data and Rietveld refinements were used to investigate changes in the akagandite structure and its transformation into hematite as it was heated from 26 to 800 degreesC. Rietveld refinements revealed surprising consistency in all unit-cell parameters between room temperature and similar to225 degreesC, resulting in nearly zero thermal expansion of the akaganeite structure over a 200 degreesC interval. Above similar to225 degreesC, the unit-cell volume gradually decreased, primarily in response to decreases in c and b, and an increase in the P angle. The a parameter remained nearly constant until similar to225 degreesC and increased thereafter. Akaganeite started to transform to hematite in the temperature range 290 to 310 degreesC with no evidence for maghemite as an intermediate phase.
C1 Smithsonian Inst, Dept Mineral Sci, Washington, DC 20560 USA.
   Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
   Los Alamos Natl Lab, LANSCE 12, Los Alamos, NM 87545 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11793 USA.
RP Post, JE (reprint author), Smithsonian Inst, Dept Mineral Sci, Washington, DC 20560 USA.
RI Hanson, jonathan/E-3517-2010
NR 26
TC 66
Z9 66
U1 3
U2 13
PU MINERALOGICAL SOC AMER
PI WASHINGTON
PA 1015 EIGHTEENTH ST, NW SUITE 601, WASHINGTON, DC 20036 USA
SN 0003-004X
J9 AM MINERAL
JI Am. Miner.
PD MAY-JUN
PY 2003
VL 88
IS 5-6
BP 782
EP 788
PG 7
WC Geochemistry & Geophysics; Mineralogy
SC Geochemistry & Geophysics; Mineralogy
GA 677XY
UT WOS:000182835600007
ER

PT J
AU Fialips, CI
   Majzlan, J
   Beaufort, D
   Navrotsky, A
AF Fialips, CI
   Majzlan, J
   Beaufort, D
   Navrotsky, A
TI New thermochemical evidence on the stability of dickite vs. kaolinite
SO AMERICAN MINERALOGIST
LA English
DT Article
ID HIGH-TEMPERATURE CALORIMETRY; X-RAY-DIFFRACTION; EQUILIBRATION
   EXPERIMENTS; THERMODYNAMIC PROPERTIES; RIETVELD REFINEMENT; SANDSTONE
   RESERVOIR; ENDMEMBER ILLITE; CLAY-MINERALS; SURFACE; CRYSTALLINITY
AB The energetics of the Saint Claire dickite sample, a highly pure and low defect material, have been studied by high-temperature oxide-melt solution calorimetry. Data were corrected for adsorbed water, the only significant impurity to the ideal formula Al2Si2O5(OH)(4). Enthalpies of dickite dissolution into molten lead borate at 702 degreesC and of dickite formation from the oxides and from the elements at 25 degreesC and 1 bar are 356.3 +/- 3.3 kJ/mol, -31.1 +/- 4.2 kJ/mol, and -4099.8 +/- 4.8 kJ/mol, respectively. Using entropy data from the literature, the standard Gibbs free energy of dickite formation from the elements at 25 degreesC is -3777.5 +/- 4.8 kJ/mol. This value is 7 to 25 kJ/mol more endothermic than literature values obtained for other dickites by calculations, solubility measurements, or calorimetry. Since the Saint Claire dickite is almost pure, the applied corrections are very small and these results are likely to be the most reliable of the available data. The Gibbs free energy of formation of the Saint Claire dickite at 25 degreesC and 1 bar is 12 to 25 kJ/mol less negative than data obtained for kaolinite using the same and different techniques. This trend is unlikely to reverse at higher temperature and/or pressure in the range of kaolin mineral occurrences. Thus, the new data further corroborate our earlier findings that dickite is thermodynamically metastable relative to kaolinite. This is in agreement with results obtained by mineral synthesis and with most of the observations of kaolinite and dickite occurrences in natural environments. However, further investigations are required to fully explain the transformation of kaolinite to dickite, which appears to occur during diagenesis.
C1 Los Alamos Natl Lab, Dept Earth & Environm Sci, Los Alamos, NM 87545 USA.
   Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
   Univ Poitiers, CNRS, UMR6532, Lab HydrASA, F-86022 Poitiers, France.
RP Los Alamos Natl Lab, Dept Earth & Environm Sci, EES-6,Mail Stop D469, Los Alamos, NM 87545 USA.
EM fialips@lanl.gov
NR 59
TC 19
Z9 21
U1 2
U2 6
PU MINERALOGICAL SOC AMER
PI CHANTILLY
PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA
SN 0003-004X
EI 1945-3027
J9 AM MINERAL
JI Am. Miner.
PD MAY-JUN
PY 2003
VL 88
IS 5-6
BP 837
EP 845
PG 9
WC Geochemistry & Geophysics; Mineralogy
SC Geochemistry & Geophysics; Mineralogy
GA 677XY
UT WOS:000182835600012
ER

PT J
AU O'Neill, HSC
   Redfern, SAT
   Kesson, S
   Short, S
AF O'Neill, HSC
   Redfern, SAT
   Kesson, S
   Short, S
TI An in situ neutron diffraction study of cation disordering in synthetic
   qandilite Mg2TiO4 at high temperatures
SO AMERICAN MINERALOGIST
LA English
DT Article
ID STRUCTURE REFINEMENTS; POWDER DIFFRACTION; SIMPLE SPINELS;
   THERMODYNAMICS; DISTRIBUTIONS; DEPENDENCE; CHEMISTRY; MGAL2O4
AB Temperature-dependent cation order-disorder has been studied in many 2+ - 3+ oxide spinels but 4+ - 2+ spinels have been found to be either completely normal or completely inverse when examined at room temperature. Here we report the temperature dependence of the cation distribution in the 4-2 spinel synthetic qandilite (Mg2TiO4) from in situ time-of-flight neutron powder diffraction experiments to 1416 degreesC. At room temperature, Mg2TiO4 is confirmed to have completely inverse cation distribution, with Ti atoms occupying half the octahedrally coordinated cation sites. Cation disordering becomes observable above about 900 degreesC, with 4% of the Ti occupying the tetrahedral site by 1416 degreesC. The rate of reordering on cooling is fast, such that high-temperature disorder is not preserved on cooling to room temperature. The thermodynamics of the change in cation distribution with temperature can be described by an enthalpy of Mg-Ti disorder of -46.1 +/- 0.4 kJ/mol.
C1 Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT 0200, Australia.
   Univ Cambridge, Dept Earth Sci, Cambridge CB2 3EQ, England.
   Argonne Natl Lab, Intense Pulsed Neutron Source, Argonne, IL 60439 USA.
RP Australian Natl Univ, Res Sch Earth Sci, GPO Box 4, Canberra, ACT 0200, Australia.
EM satr@esc.cam.ac.uk
RI O'Neill, Hugh/G-2302-2011; Redfern, Simon/B-3733-2010
OI O'Neill, Hugh/0000-0001-7018-9783; Redfern, Simon/0000-0001-9513-0147
NR 18
TC 25
Z9 25
U1 0
U2 7
PU MINERALOGICAL SOC AMER
PI CHANTILLY
PA 3635 CONCORDE PKWY STE 500, CHANTILLY, VA 20151-1125 USA
SN 0003-004X
EI 1945-3027
J9 AM MINERAL
JI Am. Miner.
PD MAY-JUN
PY 2003
VL 88
IS 5-6
BP 860
EP 865
PG 6
WC Geochemistry & Geophysics; Mineralogy
SC Geochemistry & Geophysics; Mineralogy
GA 677XY
UT WOS:000182835600015
ER

PT J
AU Lewis, CL
   Moser, MA
   Dale, DE
   Hang, W
   Hassell, C
   King, FL
   Majidi, V
AF Lewis, CL
   Moser, MA
   Dale, DE
   Hang, W
   Hassell, C
   King, FL
   Majidi, V
TI Time-gated pulsed glow discharge: Real-time chemical speciation at the
   elemental, structural, and molecular level for gas chromatography
   time-of-flight mass spectrometry
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID ION-SOURCE; IONIZATION; EMISSION
AB A millisecond pulsed glow discharge is used as a versatile ion source for time-gated generation of elemental, structural, and molecular ions. The utility of this ion source for comprehensive chemical analysis of a series of aromatic and halogenated hydrocarbons is illustrated in this manuscript. To highlight the analytical utility of this transient ion source, it was connected to a gas chromatograph for the mass spectrometric determination of mixtures containing benzene, toluene, o-xylene, cymene, tert-butylbenzene, carbon tetrachloride, chloroform, chlorobenzene, tetrachlorethane, and dichlorobenzene. Explicit chemical analysis was accomplished by introducing the GC eluent into a pulsed glow discharge operating at a rate of 100 Hz with a 50% duty cycle. Using three independent digitizers for time-gated acquisition in three separate time regimes, nearly concurrent collection of elemental, structural, and molecular information was accomplished. In general, elemental information was obtained during the first 0.015 ms after the plasma onset; structural information, as ascertained from molecular fragmentation, was obtained during the plateau time regime when the plasma pulse is at a steady state, whereas molecular M+ and MH+ ions were obtained during the afterpeak time regime, that is, after the cessation of the plasma power pulse.
C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
   USA, Med Res Inst Chem Def, Aberdeen Proving Ground, MD 21010 USA.
   W Virginia Univ, Dept Chem, Morgantown, WV 26505 USA.
RP Lewis, CL (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
NR 27
TC 51
Z9 52
U1 1
U2 8
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 MAY 1
PY 2003
VL 75
IS 9
BP 1983
EP 1996
DI 10.1021/ac026242u
PG 14
WC Chemistry, Analytical
SC Chemistry
GA 674XN
UT WOS:000182662800016
PM 12720331
ER

PT J
AU Miller, TC
   Joseph, MR
   Havrilia, GJ
   Lewis, C
   Majid, V
AF Miller, TC
   Joseph, MR
   Havrilia, GJ
   Lewis, C
   Majid, V
TI Capillary electrophoresis micro X-ray fluorescence: A tool for benchtop
   elemental analysis
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID PLASMA-MASS SPECTROMETRY; ELECTROCHEMICAL DETECTION; SPECIATION
AB A new tool was developed for separation and elemental detection by interfacing a simple capillary electrophoresis (CE) apparatus, constructed using a thin-walled fused-silica capillary, with a benchtop energy-dispersive micro X-ray fluorescence (MXRF) system. X-ray excitation and detection of the separated analytes was done using an EDAX Eagle 11 micro X-ray fluorescence system equipped with a polycapillary Rh target excitation source and a SiLi detector. It was demonstrated that this prototype system could be used for the separation and detection of species containing two different metals from one another, specifically Cu and Co. Free Co could also be separated from Co bound to cyanocobalamin (vitamin B-12). Two organic compounds were also separated from one another, a large biological protein, ferritin, from a small biological organic, cyanocobalamin. Preliminary average detection limits obtained on this system were on the order of 10(-4) M and compared favorably to those reported for the similar technique of CE-synchrotron XRF. CEMXRF allows for nondestructive, simultaneous, on-line, benchtop elemental analysis for chemical speciation applications.
C1 Los Alamos Natl Lab, Analyt Chem Sci Grp, Div Chem, Los Alamos, NM 87545 USA.
   Los Alamos Natl Lab, Actinide Analyt Chem Grp, Div Chem, Los Alamos, NM 87545 USA.
   Westminster Coll, Dept Chem, New Wilmington, PA 16172 USA.
RP Havrilia, GJ (reprint author), Los Alamos Natl Lab, Analyt Chem Sci Grp, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
NR 19
TC 13
Z9 13
U1 1
U2 4
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 MAY 1
PY 2003
VL 75
IS 9
BP 2048
EP 2053
DI 10.1021/ac0207269
PG 6
WC Chemistry, Analytical
SC Chemistry
GA 674XN
UT WOS:000182662800024
PM 12720339
ER

PT J
AU Duan, YX
   Wang, CJ
   Winstead, CB
AF Duan, YX
   Wang, CJ
   Winstead, CB
TI Exploration of microwave plasma source cavity ring-down spectroscopy for
   elemental measurements
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID INDUCTIVELY-COUPLED PLASMA; ATOMIC-ABSORPTION SPECTROMETRY; MIP-AAS;
   PERFORMANCE; MODE
AB We are exploring sensitive techniques for elemental measurements using cavity ring-down spectroscopy (CRDS) combined with a compact microwave plasma source as an atomic absorption cell. The research work marries the high sensitivity of CRDS with a low-power microwave plasma source to develop a new instrument that yields high sensitivity and capability for elemental measurements. CRDS can provide orders of magnitude improvement in sensitivity over conventional absorption techniques. Additional benefit is gained from a compact microwave plasma source that possesses the advantages of low power and low-plasma gas flow rate, which are of benefit for atomic absorption measurements. A laboratory CRDS system consisting of a tunable dye laser is used in this work for developing a scientific base and demonstrating the feasibility of the technique. A laboratory-designed and -built sampling system for solution sample introduction is used for testing. The ring-down signals are monitored using a photomultiplier tube and recorded using a digital oscilloscope interfaced to a computer. Lead is chosen as a typical element for the system optimization and characterization. The effects of baseline noise from the plasma source are reported. A detection limit of 0.8 ppb (10(-10)) is obtained with such a device.
C1 Los Alamos Natl Lab, CACS, Los Alamos, NM 87545 USA.
   Mississippi State Univ, Diagnost Instrumentat & Anal Lab, Starkville, MS 39759 USA.
   Univ So Mississippi, Dept Phys & Astron, Hattiesburg, MS 39406 USA.
RP Duan, YX (reprint author), Los Alamos Natl Lab, CACS, POB 1663,MS K484, Los Alamos, NM 87545 USA.
NR 33
TC 20
Z9 20
U1 0
U2 7
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 MAY 1
PY 2003
VL 75
IS 9
BP 2105
EP 2111
DI 10.1021/ac0207832
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 674XN
UT WOS:000182662800033
PM 12720348
ER

PT J
AU Ognibene, TJ
   Bench, G
   Vogel, JS
   Peaslee, GF
   Murov, S
AF Ognibene, TJ
   Bench, G
   Vogel, JS
   Peaslee, GF
   Murov, S
TI A high-throughput method for the conversion of CO2 obtained from
   biochemical samples to graphite in septa-sealed vials for quantification
   of C-14 via accelerator mass spectrometry
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID AMS; CONTAMINATION; SYSTEM
AB The growth of accelerator mass spectrometry as a tool for quantitative isotope ratio analysis in the biosciences necessitates high-throughput sample preparation. A method has been developed to convert CO2 obtained from carbonaceous samples to solid graphite for highly sensitive and precise C-14 quantification. Septa-sealed vials are used along with commercially available disposable materials, eliminating sample cross contamination, minimizing complex handling, and keeping per sample costs low. Samples containing between 0.25 and 10 mg of total carbon can be reduced to graphite in similar to4 h in routine operation. Approximately 150 samples per 8-h day can be prepared by a single technician.
C1 Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA.
   Hope Coll, Dept Chem, Holland, MI 49423 USA.
   Modesto Jr Coll, Sci Math & Engn Div, Modesto, CA 95350 USA.
RP Ognibene, TJ (reprint author), Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94551 USA.
FU NCRR NIH HHS [RR13461]
NR 26
TC 89
Z9 89
U1 2
U2 12
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 MAY 1
PY 2003
VL 75
IS 9
BP 2192
EP 2196
DI 10.1021/ac026334j
PG 5
WC Chemistry, Analytical
SC Chemistry
GA 674XN
UT WOS:000182662800047
PM 12720362
ER

PT J
AU Muehleman, C
   Chapman, LD
   Kuettner, KE
   Rieff, J
   Mollenhauer, JA
   Massuda, K
   Zhong, Z
AF Muehleman, C
   Chapman, LD
   Kuettner, KE
   Rieff, J
   Mollenhauer, JA
   Massuda, K
   Zhong, Z
TI Radiography of rabbit articular cartilage with diffraction-enhanced
   imaging
SO ANATOMICAL RECORD PART A-DISCOVERIES IN MOLECULAR CELLULAR AND
   EVOLUTIONARY BIOLOGY
LA English
DT Article
DE diffraction-enhanced imaging; cartilage imaging; cartilage radiography
ID OSTEOARTHRITIS
AB Articular cartilage of synovial joints is not visible with conventional X-ray imaging. Hence, the gradual degeneration and destruction of articular cartilage, which is characteristic of degenerative joint diseases, is only detected at a late stage when the cartilage is lost and the joint space that it once occupied narrows. The development of an X-ray imaging technique that could detect both the degenerative cartilage and bone features of joint diseases is of special interest. Here we show, for the first time, that a high-contrast imaging technique, diffraction-enhanced X-ray imaging (DEI), allows the visualization of articular cartilage of both disarticulated and articulated rabbit knee joints. Furthermore, a single cartilage lesion can be visualized within an intact joint. The results suggest that DEI has the potential to be of use in the study of cartilage degeneration. (C) 2003 Wiley-Liss, Inc.
C1 Rush Med Coll, Dept Anat, Chicago, IL 60612 USA.
   Rush Med Coll, Dept Biochem, Chicago, IL 60612 USA.
   IIT, Biol Chem & Phys Sci Dept, Chicago, IL 60616 USA.
   Univ Jena, Dept Orthopaed Surg, Waldkrankenhaus Rudolf Elle, Eisenberg, Germany.
   Brookhaven Natl Lab, Natl Synchrotron Light Source Dept, Upton, NY 11973 USA.
   Rush Med Coll, Dept Orthoped Surg, Chicago, IL 60612 USA.
RP Muehleman, C (reprint author), Rush Med Coll, Dept Anat, ACFAC 507,600 S Paulina St, Chicago, IL 60612 USA.
RI Chapman, Dean/I-6168-2013
OI Chapman, Dean/0000-0001-6590-4156
FU NIAMS NIH HHS [2-P50-AR 39239, R01 AR 48292-01]; NIGMS NIH HHS
   [GM59395-01]
NR 14
TC 38
Z9 42
U1 0
U2 3
PU WILEY-LISS
PI NEW YORK
PA DIV JOHN WILEY & SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA
SN 0003-276X
J9 ANAT REC PART A
JI Anat. Rec. Part A
PD MAY
PY 2003
VL 272A
IS 1
BP 392
EP 397
DI 10.1002/ar.a.10043
PG 6
WC Anatomy & Morphology
SC Anatomy & Morphology
GA 672XE
UT WOS:000182547900004
PM 12704696
ER

PT J
AU Amthor, JS
AF Amthor, JS
TI Efficiency of lignin biosynthesis: a quantitative analysis
SO ANNALS OF BOTANY
LA English
DT Article
DE biosynthesis; coniferyl alcohol; p-coumaryl alcohol; lignin; metabolic
   efficiency; respiration; sinapyl alcohol
ID MOLECULAR-BIOLOGY; CHORISMATE MUTASE; FORMATE DEHYDROGENASE; NITROGEN
   ASSIMILATION; ARABIDOPSIS-THALIANA; HIGHER-PLANTS; ATP SYNTHASE;
   CELL-WALLS; METABOLISM; PATHWAY
AB Lignin is derived mainly from three alcohol monomers: p-coumaryl alcohol, coniferyl alcohol and sinapyl alcohol. Biochemical reactions probably responsible for synthesizing these three monomers from sucrose, and then polymerizing the monomers into lignin, were analysed to estimate the amount of sucrose required to produce a unit of lignin. Included in the calculations were amounts of respiration required to provide NADPH (from NADP(+)) and ATP (from ADP) for lignin biosynthesis. Two pathways in the middle stage of monomer biosynthesis were considered: one via tyrosine (found in monocots) and the other via phenylalanine (found in all plants). If lignin biosynthesis proceeds with high efficiency via tyrosine, 76.9, 70.4 and 64.3 % of the carbon in sucrose can be retained in the fraction of lignin derived from p-coumaryl alcohol, coniferyl alcohol and sinapyl alcohol, respectively. The corresponding carbon retention values for lignin biosynthesis via phenylalanine are less, at 73.2, 65.7 and 60.7 %, respectively. Energy (i.e. heat of combustion) retention during lignin biosynthesis via tyrosine could be as high as 81.6, 74.5 and 67.8 % for lignin derived from p-coumaryl alcohol, coniferyl alcohol and sinapyl alcohol, respectively, with the corresponding potential energy retention values for lignin biosynthesis via phenylalanine being less, at 77.7, 69.5 and 63.9 %, respectively. Whether maximum efficiency occurs in situ is unclear, but these values are targets that can be considered in: (1) plant breeding programmes aimed at maximizing carbon or energy retention from photosynthate; (2) analyses of (minimum) metabolic costs of responding to environmental change or pest attack involving increased lignin biosynthesis; (3) understanding costs of lignification in older tissues; and (4) interpreting carbon balance measurements of organs and plants with large lignin concentrations. (C) 2003 Annals of Botany Company.
C1 US DOE, Washington, DC 20585 USA.
RP Amthor, JS (reprint author), US DOE, SC-74 Germantown Bldg,1000 Independence Ave SW, Washington, DC 20585 USA.
RI Amthor, Jeffrey/F-2696-2016
OI Amthor, Jeffrey/0000-0002-1410-6100
NR 92
TC 71
Z9 76
U1 2
U2 23
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0305-7364
J9 ANN BOT-LONDON
JI Ann. Bot.
PD MAY
PY 2003
VL 91
IS 6
BP 673
EP 695
DI 10.1093/aob/mcg073
PG 23
WC Plant Sciences
SC Plant Sciences
GA 676XL
UT WOS:000182777800008
PM 12714366
ER

PT J
AU Radnedge, L
   Agron, PG
   Hill, KK
   Jackson, PJ
   Ticknor, LO
   Keim, P
   Andersen, GL
AF Radnedge, L
   Agron, PG
   Hill, KK
   Jackson, PJ
   Ticknor, LO
   Keim, P
   Andersen, GL
TI Genome differences that distinguish Bacillus anthracis from Bacillus
   cereus and Bacillus thuringiensis
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID REAL-TIME PCR; YERSINIA-PESTIS; SUBTRACTIVE HYBRIDIZATION; S-LAYER;
   IDENTIFICATION; SEQUENCE; GENE; DNA; STRAINS; DIVERSITY
AB The three species of the group I bacilli, Bacillus anthracis, B. cereus, and B. thuringiensis, are genetically very closely related. All inhabit soil habitats but exhibit different phenotypes. B. anthracis is the causative agent of anthrax and is phylogenetically monomorphic, while B. cereus and B. thuringiensis are genetically more diverse. An amplified fragment length polymorphism analysis described here demonstrates genetic diversity among a collection of non-anthrax-causing Bacillus species, some of which show significant similarity to B. anthracis. Suppression subtractive hybridization was then used to characterize the genomic differences that distinguish three of the non-anthrax-causing bacilli from B. anthracis Ames. Ninety-three DNA sequences that were present in B. anthracis but absent from the non-anthrax-causing Bacillus genomes were isolated. Furthermore, 28 of these sequences were not found in a collection of 10 non-anthrax-causing Bacillus species but were present in all members of a representative collection of B. anthracis strains. These sequences map to distinct loci on the B. anthracis genome and can be assayed simultaneously in multiplex PCR assays for rapid and highly specific DNA-based detection of B. anthracis.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, Berkeley, CA 94720 USA.
   Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94551 USA.
   Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
   No Arizona Univ, Dept Biol Sci, Flagstaff, AZ 86011 USA.
RP Andersen, GL (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Environm Biotechnol, 1 Cyclotron Rd,Mail Stop 70A-3317, Berkeley, CA 94720 USA.
RI Keim, Paul/A-2269-2010; Andersen, Gary/G-2792-2015
OI Andersen, Gary/0000-0002-1618-9827
NR 40
TC 123
Z9 132
U1 1
U2 10
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD MAY
PY 2003
VL 69
IS 5
BP 2755
EP 2764
DI 10.1128/AEM.69.5.2755-2764.2003
PG 10
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 677LD
UT WOS:000182808300041
PM 12732546
ER

PT J
AU Chandler, DP
   Newton, GJ
   Small, JA
   Daly, DS
AF Chandler, DP
   Newton, GJ
   Small, JA
   Daly, DS
TI Sequence versus structure for the direct detection of 16S rRNA on planar
   oligonucleotide microarrays
SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY
LA English
DT Article
ID MUTATION DETECTION; DNA MICROARRAYS; FLOW-CYTOMETRY; RIBOSOMAL-RNA;
   HYBRIDIZATION; PROBES; ARRAYS; DIAGNOSTICS; MICROCHIPS; DATABASE
AB A two-probe proximal chaperone detection system consisting of a species-specific capture probe for the microarray and a labeled, proximal chaperone probe for detection was recently described for direct detection of intact rRNAs from environmental samples on oligonucleotide arrays. In this study, we investigated the physical spacing and nucleotide mismatch tolerance between capture and proximal chaperone detector probes that are required to achieve species-specific 16S rRNA detection for the dissimilatory metal and sulfate reducer 16S rRNAs. Microarray specificity was deduced by analyzing signal intensities across replicate microarrays with a statistical analysis-of-variance model that accommodates well-to-well and slide-to-slide variations in microarray signal intensity. Chaperone detector probes located in immediate proximity to the capture probe resulted in detectable, nonspecific binding of nontarget rRNA, presumably due to base-stacking effects. Species-specific rRNA detection was achieved by using a 22-nt capture probe and a 15-nt detector probe separated by 10 to 14 nt along the primary sequence. Chaperone detector probes with up to three mismatched nucleotides still resulted in species-specific capture of 16S rRNAs. There was no obvious relationship between position or number of mismatches and within- or between-genus hybridization specificity. From these results, we conclude that relieving secondary structure is of principal concern for the successful capture and detection of 16S rRNAs on planar surfaces but that the sequence of the capture probe is more important than relieving secondary structure for achieving specific hybridization.
C1 Argonne Natl Lab, Biochip Technol Ctr, Argonne, IL 60439 USA.
   Pacific NW Natl Lab, Appl Stat Grp, Richland, WA 99352 USA.
RP Chandler, DP (reprint author), Argonne Natl Lab, Biochip Technol Ctr, 9700 S Cass Ave,Bldg 202,A-249, Argonne, IL 60439 USA.
NR 29
TC 69
Z9 77
U1 0
U2 5
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0099-2240
J9 APPL ENVIRON MICROB
JI Appl. Environ. Microbiol.
PD MAY
PY 2003
VL 69
IS 5
BP 2950
EP 2958
DI 10.1128/AEM.69.5.2950-2958.2003
PG 9
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 677LD
UT WOS:000182808300066
PM 12732571
ER

PT J
AU Windt, DL
   Donguy, S
   Hailey, CJ
   Koglin, J
   Honkimaki, V
   Ziegler, E
   Christensen, FE
   Chen, H
   Harrison, FA
   Craig, WW
AF Windt, DL
   Donguy, S
   Hailey, CJ
   Koglin, J
   Honkimaki, V
   Ziegler, E
   Christensen, FE
   Chen, H
   Harrison, FA
   Craig, WW
TI W/SiC x-ray multilayers optimized for use above 100 keV
SO APPLIED OPTICS
LA English
DT Article
ID SCATTERING; TELESCOPE; MIRRORS
AB We have developed a new depth-graded multilayer system comprising W and SiC layers, suitable for use as hard x-ray reflective coatings operating in the energy range 100-200 keV. Grazing-incidence x-ray reflectance at E = 8 keV was used to characterize the interface widths, as well as the temporal and thermal stability in both periodic and depth-graded W/SiC structures, whereas synchrotron radiation was used to measure the hard x-ray reflectance of a depth-graded multilayer designed specifically for use in, the range Esimilar to150-170 keV. We have modeled the hard x-ray reflectance using newly derived optical constants, which we determined from reflectance versus incidence angle measurements also made using synchrotron radiation, in the range E = 120-180 keV. We describe our experimental investigation in detail, compare the new W/SiC multilayers with both W/Si and W/B4C films that have been studied previously, and discuss the significance of these results with regard to the eventual development of a hard x-ray nuclear line telescope. (C) 2003 Optical Society of America.
C1 Columbia Astrophys Lab, New York, NY 10027 USA.
   European Synchrotron Radiat Facil, F-38043 Grenoble, France.
   Danish Space Res Inst, DK-2100 Copenhagen, Denmark.
   CALTECH, Pasadena, CA 91125 USA.
   Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Windt, DL (reprint author), Columbia Astrophys Lab, 550 W 120 St, New York, NY 10027 USA.
EM windt@astro.columbia.edu
NR 15
TC 24
Z9 25
U1 0
U2 4
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD MAY 1
PY 2003
VL 42
IS 13
BP 2415
EP 2421
DI 10.1364/AO.42.002415
PG 7
WC Optics
SC Optics
GA 672KN
UT WOS:000182519900024
PM 12737477
ER

PT J
AU Silver, GL
AF Silver, GL
TI Plutonium disproportionation: the ambiguity phenomenon
SO APPLIED RADIATION AND ISOTOPES
LA English
DT Article
DE plutonium; environment; disproportionation; alpha coefficients;
   ambiguity
ID SEAWATER
AB Plutonium oxidation-state studies may yield ambiguous results if the parameters are not carefully chosen. The effect can be related to environmental plutonium as illustrated by an example. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Silver, GL (reprint author), Los Alamos Natl Lab, POB 1663,MS E500, Los Alamos, NM 87545 USA.
NR 11
TC 5
Z9 5
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0969-8043
J9 APPL RADIAT ISOTOPES
JI Appl. Radiat. Isot.
PD MAY
PY 2003
VL 58
IS 5
BP 529
EP 532
DI 10.1016/S0969-8043(03)00061-7
PG 4
WC Chemistry, Inorganic & Nuclear; Nuclear Science & Technology; Radiology,
   Nuclear Medicine & Medical Imaging
SC Chemistry; Nuclear Science & Technology; Radiology, Nuclear Medicine &
   Medical Imaging
GA 684KR
UT WOS:000183206500001
PM 12735968
ER

PT J
AU Schoonover, JR
   Marx, R
   Zhang, SLL
AF Schoonover, JR
   Marx, R
   Zhang, SLL
TI Multivariate curve resolution in the analysis of vibrational
   spectroscopy data files
SO APPLIED SPECTROSCOPY
LA English
DT Review
ID POLYURETHANE BLOCK COPOLYMERS; FT-IR; ALUMINATE SOLUTIONS; ELASTOMER;
   SYSTEM
C1 Los Alamos Natl Lab, Div Mat Sci, Los Alamos, NM 87545 USA.
   Unilever Res, Edgewater, NJ 07020 USA.
RP Schoonover, JR (reprint author), Los Alamos Natl Lab, Div Mat Sci, Los Alamos, NM 87545 USA.
EM schoons@lanl.gov
NR 30
TC 45
Z9 45
U1 0
U2 5
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 5320 SPECTRUM DRIVE SUITE C, FREDERICK, MD 21703 USA
SN 0003-7028
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAY
PY 2003
VL 57
IS 5
BP 154A
EP 170A
PG 17
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA 704UG
UT WOS:000184358400001
PM 14658670
ER

PT J
AU Harvey, SD
   Peters, TJ
   Wright, BW
AF Harvey, SD
   Peters, TJ
   Wright, BW
TI Safety considerations for sample analysis using a near-infrared (785 nm)
   Raman laser source
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE laser safety; near-infrared laser; Raman hazards; sample heating;
   laser-induced deflagration; laser-induced detonation
ID SPECTROSCOPY; SPECTRA
AB Raman spectroscopy is often considered a nondestructive analytical technique; however, this is not always the case. The 300-mW 785-nm near-infrared (NIR) laser source used with many commercially available instruments has sufficient power to burn samples. This destructive potential is of special concern if the sample is irreplaceable (e.g., fine art, forensic evidence, or for in vivo medical diagnostics) or a hazardous energetic material (explosive or pyrophoric samples). This study quantifies the heat resulting from illuminating an extensive color array with a 785-nm NIR laser and relates these values to the hazards associated with Raman analysis. In general, darker colors were found to be more problematic. Since visible colors are not ideally correlated with absorptive characteristics at 785 nm, predictions based on thermography are not perfect; however, this approximation gives a useful method for predicting the thermal response of unknown samples to NIR exposure. Additionally, experimental studies evaluated the analysis of flammable organic solvents, propellants, military explosives, mixtures containing military explosives, shock-sensitive explosives, and gunpowders (i.e., smokeless, black, and Pyrodex powders). Safety guidelines for analysis are presented.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Harvey, SD (reprint author), Pacific NW Natl Lab, Battelle Blvd,POB 999,P8-50, Richland, WA 99352 USA.
NR 14
TC 11
Z9 11
U1 0
U2 7
PU SOC APPLIED SPECTROSCOPY
PI FREDERICK
PA 201B BROADWAY ST, FREDERICK, MD 21701 USA
SN 0003-7028
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAY
PY 2003
VL 57
IS 5
BP 580
EP 587
DI 10.1366/000370203321666632
PG 8
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA 704UG
UT WOS:000184358400018
PM 14658687
ER

PT J
AU Holmes, LL
   Harbottle, G
AF Holmes, LL
   Harbottle, G
TI In the steps of William the Conqueror: Neutron activation analysis of
   Caen stone
SO ARCHAEOMETRY
LA English
DT Article
DE France; Caen stone; limestone; quarries; neutron activation analysis;
   gothic sculpture; medieval; abbey churches
ID SCULPTURE
AB Quarries in the Bathonian stone formation surrounding Caen produced high-quality limestone for medieval churches in northern France and southern England and for their sculptural decoration. To investigate compositional differences among proximate stone sources, 103 samples collected from five separate quarries were analysed by NAA. The results show Caen stone to be essentially pure calcite and relatively homogeneous, but distinction among quarries is possible by discriminant analysis. Comparing compositions of quarry samples with data in the Brookhaven Limestone Database identified the origin of stone used in masonry and sculpture at Saint-Etienne and La Trinite, Caen, and in several museum objects.
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Stony Brook, NY 11794 USA.
RP Holmes, LL (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
NR 28
TC 2
Z9 2
U1 0
U2 4
PU BLACKWELL PUBL LTD
PI OXFORD
PA 108 COWLEY RD, OXFORD OX4 1JF, OXON, ENGLAND
SN 0003-813X
J9 ARCHAEOMETRY
JI Archaeometry
PD MAY
PY 2003
VL 45
BP 199
EP 220
DI 10.1111/1475-4754.00104
PN 2
PG 22
WC Archaeology; Chemistry, Analytical; Chemistry, Inorganic & Nuclear;
   Geosciences, Multidisciplinary
SC Archaeology; Chemistry; Geology
GA 695XD
UT WOS:000183854900001
ER

PT J
AU Jia, Z
   Forte, TM
   Bielicki, JK
AF Jia, Z
   Forte, TM
   Bielicki, JK
TI Phospholipid hydroperoxides convert lecithin : cholesterol
   acyltransferase to an antioxidative form
SO ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
LA English
DT Meeting Abstract
CT 4th Annual Conference on Arteriosclerosis Thrombosisand Vascular Biology
CY MAY 08-10, 2003
CL WASHINGTON, D.C.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1079-5642
J9 ARTERIOSCL THROM VAS
JI Arterioscler. Thromb. Vasc. Biol.
PD MAY
PY 2003
VL 23
IS 5
MA P366
BP A64
EP A64
PG 1
WC Hematology; Peripheral Vascular Disease
SC Hematology; Cardiovascular System & Cardiology
GA 676GG
UT WOS:000182742500377
ER

PT J
AU Natarajan, P
   Narayanaswami, V
   Ryan, RO
   Forte, TM
   Bielicki, JK
AF Natarajan, P
   Narayanaswami, V
   Ryan, RO
   Forte, TM
   Bielicki, JK
TI ApolipoproteinA-IMilano and apolipoproteinE3 share structural features
   that confer antioxidant activity
SO ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
LA English
DT Meeting Abstract
CT 4th Annual Conference on Arteriosclerosis Thrombosisand Vascular Biology
CY MAY 08-10, 2003
CL WASHINGTON, D.C.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Childrens Hosp Oakland, Res Inst, Oakland, CA 94609 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1079-5642
J9 ARTERIOSCL THROM VAS
JI Arterioscler. Thromb. Vasc. Biol.
PD MAY
PY 2003
VL 23
IS 5
MA P203
BP A36
EP A36
PG 1
WC Hematology; Peripheral Vascular Disease
SC Hematology; Cardiovascular System & Cardiology
GA 676GG
UT WOS:000182742500227
ER

PT J
AU Quarck, R
   Werreth, W
   Mertens, A
   Verhamme, P
   Bielicki, JK
   Holvoet, P
AF Quarck, R
   Werreth, W
   Mertens, A
   Verhamme, P
   Bielicki, JK
   Holvoet, P
TI LCAT gene transfer decreases atherosclerosis and oxidative stress in
   dyslipidemic obese mice
SO ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
LA English
DT Meeting Abstract
CT 4th Annual Conference on Arteriosclerosis Thrombosisand Vascular Biology
CY MAY 08-10, 2003
CL WASHINGTON, D.C.
C1 Katholieke Univ Leuven, Louvain, Belgium.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1079-5642
J9 ARTERIOSCL THROM VAS
JI Arterioscler. Thromb. Vasc. Biol.
PD MAY
PY 2003
VL 23
IS 5
MA P273
BP A48
EP A48
PG 1
WC Hematology; Peripheral Vascular Disease
SC Hematology; Cardiovascular System & Cardiology
GA 676GG
UT WOS:000182742500291
ER

PT J
AU Verreth, W
   Verhamme, P
   Bielicki, JK
   Mackness, M
   Quarck, R
   Holvoet, P
AF Verreth, W
   Verhamme, P
   Bielicki, JK
   Mackness, M
   Quarck, R
   Holvoet, P
TI Restricted dietary intake and weight-loss is associated with reversal of
   hypertriglyceridemia and prevention of atherosclerosis in obese
   dyslipidemic mice
SO ARTERIOSCLEROSIS THROMBOSIS AND VASCULAR BIOLOGY
LA English
DT Meeting Abstract
CT 4th Annual Conference on Arteriosclerosis Thrombosisand Vascular Biology
CY MAY 08-10, 2003
CL WASHINGTON, D.C.
C1 Katholieke Univ Leuven, Louvain, Belgium.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Univ Manchester, Manchester, Lancs, England.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1079-5642
J9 ARTERIOSCL THROM VAS
JI Arterioscler. Thromb. Vasc. Biol.
PD MAY
PY 2003
VL 23
IS 5
MA P70
BP A13
EP A14
PG 2
WC Hematology; Peripheral Vascular Disease
SC Hematology; Cardiovascular System & Cardiology
GA 676GG
UT WOS:000182742500103
ER

PT J
AU Hamilton, SD
   Roth, KW
   Brodrick, J
AF Hamilton, SD
   Roth, KW
   Brodrick, J
TI Improved duct sealing
SO ASHRAE JOURNAL
LA English
DT Article
C1 TIAX, Appliance & Bldg Technol Sector, Cambridge, MA USA.
   US DOE, Bldg Technol Program, Washington, DC USA.
RP Hamilton, SD (reprint author), TIAX, Appliance & Bldg Technol Sector, Cambridge, MA USA.
NR 7
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC HEATING REFRIGERATING AIR-CONDITIONING ENG, INC,
PI ATLANTA
PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 USA
SN 0001-2491
J9 ASHRAE J
JI ASHRAE J.
PD MAY
PY 2003
VL 45
IS 5
BP 64
EP 65
PG 2
WC Thermodynamics; Construction & Building Technology; Engineering,
   Mechanical
SC Thermodynamics; Construction & Building Technology; Engineering
GA 674XM
UT WOS:000182662700019
ER

PT J
AU Raymond, SN
   Szkody, P
   Hawley, SL
   Anderson, SF
   Brinkmann, J
   Covey, KR
   McGehee, PM
   Schneider, DP
   West, AA
   York, DG
AF Raymond, SN
   Szkody, P
   Hawley, SL
   Anderson, SF
   Brinkmann, J
   Covey, KR
   McGehee, PM
   Schneider, DP
   West, AA
   York, DG
TI A first look at white dwarf M dwarf pairs in the Sloan Digital Sky
   Survey
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE binaries : spectroscopic; stars : activity; stars : late-type; white
   dwarfs
ID STAR SPECTROSCOPIC SURVEY; BINARY-SYSTEMS; MAIN-SEQUENCE; EVOLUTION;
   KINEMATICS
AB We have identified 109 white dwarf (WD)-M dwarf pairs in the Sloan Digital Sky Survey (SDSS) with g < 20th magnitude. For each system we determined the temperature of the WD primary and the spectral type of the M dwarf secondary. Using H&alpha; emission as a proxy for the chromospheric activity level of the M dwarf, we investigated correlations between the activity level and properties of the system. Compared with field M dwarfs previously observed in the Palomar/MSU Survey, we see a slightly higher active fraction of early-type stars, with activity levels similar to the field. We have conducted follow-up observations at the ARC 3.5 m telescope to obtain radial velocity information and to search for short-period binaries that may be on the verge of interacting. We report on one system with a 4.1 hr period and several additional systems with significant velocity variations.
C1 Univ Washington, Dept Astron, Seattle, WA 98195 USA.
   Apache Point Observ, Sunspot, NM 88349 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
   Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA.
   Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
RP Raymond, SN (reprint author), Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA.
RI West, Andrew/H-3717-2014; 
OI Covey, Kevin/0000-0001-6914-7797
NR 31
TC 57
Z9 58
U1 0
U2 2
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD MAY
PY 2003
VL 125
IS 5
BP 2621
EP 2629
DI 10.1086/374762
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 669VU
UT WOS:000182371800026
ER

PT J
AU Abazajian, KN
AF Abazajian, KN
TI Telling three from four neutrinos with cosmology
SO ASTROPARTICLE PHYSICS
LA English
DT Article
ID BIG-BANG NUCLEOSYNTHESIS; HYDROGEN ABUNDANCE RATIO; DEUTERIUM ABUNDANCE;
   EARLY UNIVERSE; PRIMORDIAL ABUNDANCE; STERILE NEUTRINOS; FLAVOR
   OSCILLATIONS; ANTIMATTER DOMAINS; BARYON DENSITY; QSO
AB New results, namely the independent determination of the deuterium abundance in several quasar absorption systems, and the complementary determination of the cosmological baryon density by observations of anisotropies in the cosmic microwave background (CMB), allow for a reevaluation of the constraints on the relativistic particle content of the Universe at primordial nucleosynthesis. Expressed in terms of the neutrino energy density, we find 1.7 < N-v < 3.5 (95% CL). In particular, we show that phenomenological four neutrino models including a sterile state (not participating in SU(2)(L) x U(1)(Y) interactions) unavoidably thermalize a fourth neutrino, and are highly disfavored in the standard minimal model of primordial nucleosynthesis, if the systematic uncertainty in the primordial helium abundance is small. We describe plausible extensions of the minimal model which evade this constraint. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 NASA, Fermilab Astrophys Ctr, Fermi Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Abazajian, KN (reprint author), NASA, Fermilab Astrophys Ctr, Fermi Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM aba@fnal.gov
NR 97
TC 44
Z9 44
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-6505
EI 1873-2852
J9 ASTROPART PHYS
JI Astropart Phys.
PD MAY
PY 2003
VL 19
IS 2
BP 303
EP 312
DI 10.1016/S0927-6505(02)00204-9
PG 10
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 665JH
UT WOS:000182116100010
ER

PT J
AU Schaefer, BE
   Gerardy, CL
   Hoflich, P
   Panaitescu, A
   Quimby, R
   Mader, J
   Hill, GJ
   Kumar, P
   Wheeler, JC
   Eracleous, M
   Sigurdsson, S
   Meszaros, P
   Zhang, B
   Wang, L
   Hessman, FV
   Petrosian, V
AF Schaefer, BE
   Gerardy, CL
   Hoflich, P
   Panaitescu, A
   Quimby, R
   Mader, J
   Hill, GJ
   Kumar, P
   Wheeler, JC
   Eracleous, M
   Sigurdsson, S
   Meszaros, P
   Zhang, B
   Wang, L
   Hessman, FV
   Petrosian, V
TI GRB 021004: A massive progenitor star surrounded by shells
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays : bursts; stars : Wolf-Rayet
ID GAMMA-RAY BURST; CIRCUMSTELLAR GAS; LIGHT CURVES; AFTERGLOW; SUPERNOVA;
   EVOLUTION; GRB-970228; ENERGY; SPECTROSCOPY; VARIABILITY
AB We present spectra of the optical transient of GRB 021004 obtained with the Hobby-Eberly Telescope starting 15.48 hr, 20.31 hr, and 4.84 days after the gamma-ray burst and a spectrum obtained with the H. J. Smith 2.7 m Telescope starting 14.31 hr after the gamma-ray burst. GRB 021004 is the first burst afterglow for which the spectrum is dominated by absorption lines from high-ionization species with multiple velocity components separated by up to 3000 km s(-1). We argue that these absorption lines are likely to come from shells around a massive progenitor star. The high velocities and high ionizations arise from a combination of acceleration and. ash ionization by the burst photons and the wind velocity and steady ionization by the progenitor. We also analyze the broadband spectrum and the light curve so as to distinguish the structure of gas within 0.3 pc of the burster. We delineate six components in the medium surrounding the gamma-ray burst along the line of sight: (1) The z similar or equal to 2.293 absorption lines arise from the innermost region closest to the burst, where the ionization will be highest and the 3000 km s(-1) velocity comes from the intrinsic velocity of a massive star wind boosted by acceleration from the burst flux. For a mass-loss rate of similar to6 x 10(-5) M. yr(-1), this component also provides the external medium with which the jet collides over radial distances 0.004-0.3 pc to create the afterglow light. (2) A second cloud or shell produces absorption lines with a relative velocity of 560 km s(-1). This component could be associated with the shell created by the fast massive star wind blowing a bubble in the preceding slow wind at a radial distance on the order of 10 pc or by a clump at similar to0.5 pc accelerated by the burst. (3) More distant clouds within the host galaxy that lie between 30 and 2500 pc and have been ionized by the burst will create the z similar or equal to 2.33 absorption lines. (4-6) If the three bumps in the afterglow light curve at 0.14, 1.1, and 4.0 days are caused by clumps or shells in the massive star wind along the line of sight, then the radii and overdensities of these are 0.022, 0.063, and 0.12 pc and 50%, 10%, and 10%, respectively. The immediate progenitor of the gamma-ray burst could be either a WC-type Wolf-Rayet star with a high-velocity wind or a highly evolved massive star the original mass of which was too small for it to become a WN-type Wolf-Rayet star. In summary, the highly ionized lines with high relative velocities most likely come from shells or clumps of material close to the progenitor, and these shells were plausibly produced by a massive star soon before its collapse.
C1 Univ Texas, Dept Astron, Austin, TX 78712 USA.
   Penn State Univ, Dept Astron, DAvey Lab 525, University Pk, PA 16802 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Univ Gottingen, Univ Sternwarte, D-37083 Gottingen, Germany.
   Stanford Univ, Ctr Space Sci & Astrophys, Stanford, CA 94305 USA.
RP Schaefer, BE (reprint author), Univ Texas, Dept Astron, RLM 15308, Austin, TX 78712 USA.
OI Sigurdsson, Steinn/0000-0002-8187-1144
NR 89
TC 86
Z9 87
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 MAY 1
PY 2003
VL 588
IS 1
BP 387
EP 399
DI 10.1086/373896
PN 1
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 671EF
UT WOS:000182451800032
ER

PT J
AU Falcone, A
   Atkins, R
   Benbow, W
   Berley, D
   Chen, ML
   Coyne, DG
   Dingus, BL
   Dorfan, DE
   Ellsworth, RW
   Fleysher, L
   Fleysher, R
   Gisler, G
   Goodman, JA
   Haines, TJ
   Hoffman, CM
   Hugenberger, S
   Kelley, LA
   Leonor, I
   McCullough, JF
   McEnery, JE
   Miller, RS
   Mincer, AI
   Morales, MF
   Nemethy, P
   Ryan, JM
   Shen, B
   Shoup, A
   Sinnis, G
   Smith, AJ
   Sullivan, GW
   Tumer, T
   Wang, K
   Wascko, MO
   Westerhoff, S
   Williams, DA
   Yang, T
   Yodh, GB
AF Falcone, A
   Atkins, R
   Benbow, W
   Berley, D
   Chen, ML
   Coyne, DG
   Dingus, BL
   Dorfan, DE
   Ellsworth, RW
   Fleysher, L
   Fleysher, R
   Gisler, G
   Goodman, JA
   Haines, TJ
   Hoffman, CM
   Hugenberger, S
   Kelley, LA
   Leonor, I
   McCullough, JF
   McEnery, JE
   Miller, RS
   Mincer, AI
   Morales, MF
   Nemethy, P
   Ryan, JM
   Shen, B
   Shoup, A
   Sinnis, G
   Smith, AJ
   Sullivan, GW
   Tumer, T
   Wang, K
   Wascko, MO
   Westerhoff, S
   Williams, DA
   Yang, T
   Yodh, GB
TI Observation of GeV solar energetic particles from the 1997 November 6
   event using Milagrito
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; interplanetary medium; Sun : flares; Sun :
   particle emission
ID CORONAL MASS EJECTIONS; ACCELERATION; FLARE; HELIOSPHERE; SUN
AB Milagrito was an extensive air-shower observatory that served as a prototype for the larger Milagro instrument. Milagrito operated from 1997 February to 1998 May. Although it was designed as a very high energy (few hundred GeV threshold) water-Cerenkov gamma-ray observatory, it could also be used to study solar energetic particles (SEPs). By recording scaler data, which correspond to photomultiplier tube singles rates, it was sensitive to muons and small showers from hadronic primary particles with rigidities above similar to4 GV. Milagrito simultaneously recorded air-shower trigger data of primary particles with energies greater than similar to100 GeV that provide the data to help reconstruct event directions. The Milagrito scalers registered a ground-level enhancement associated with the 1997 November 6 SEP event and X9 solar. are. At its peak, the enhancement was 22 times the background rms fluctuations. Based on comparisons to neutron monitor and satellite data, we find evidence that the rigidity power-law spectrum for the differential flux of energetic protons steepened above similar to4 GV and that the acceleration site was high in the corona (at similar to3 R-circle dot above the photosphere), assuming that a CME-driven shock was responsible for the ground-level enhancement.
C1 Univ New Hampshire, Ctr Space Sci, Durham, NH 03824 USA.
   Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
   Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
   Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
   George Mason Univ, Fairfax, VA 22030 USA.
   NYU, Dept Phys, New York, NY 10003 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Univ Calif Irvine, Dept Phys, Irvine, CA 92717 USA.
   Univ Calif Riverside, Dept Phys, Riverside, CA 92521 USA.
RP Falcone, A (reprint author), Purdue Univ, W Lafayette, IN 47907 USA.
OI Dingus, Brenda/0000-0001-8451-7450
NR 38
TC 12
Z9 12
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 MAY 1
PY 2003
VL 588
IS 1
BP 557
EP 565
DI 10.1086/373950
PN 1
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 671EF
UT WOS:000182451800046
ER

PT J
AU Birn, J
   Forbes, TG
   Schindler, K
AF Birn, J
   Forbes, TG
   Schindler, K
TI Models of three-dimensional flux ropes
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE MHD; Sun : corona; Sun : coronal mass ejections (CMEs); Sun : magnetic
   fields
ID CORONAL MASS EJECTIONS; FIELD-ALIGNED FLOW; MAGNETIC-FIELDS; CURRENT
   SHEET; MAGNETOTAIL; EQUILIBRIA; EVOLUTION; STREAMER; ERUPTION
AB A crucial problem in the study of coronal mass ejections is understanding the evolution prior to the eruption and the development of initial configurations and boundary conditions that can produce an eruption of the field configuration and the identification of observable features from these configurations. In this paper we present a general framework to derive approximate equilibrium configurations suitable to describe pre-eruption states, using an approach originally developed for the Earth's magnetotail but including magnetic shear and gravity. The solutions hold for configurations that vary most strongly in one spatial direction perpendicular to the direction of gravity. We illustrate the approach by deriving configurations for both force-free and non-force-free states. The variable models contain a twisted flux rope connected to the photosphere and anchored in the corona by an overlying arcade. The models may also include a magnetic configuration above the flux rope typical for helmet streamers.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Univ New Hampshire, Durham, NH 03824 USA.
   Ruhr Univ Bochum, D-4630 Bochum, Germany.
RP Birn, J (reprint author), Los Alamos Natl Lab, MS D466, Los Alamos, NM 87545 USA.
NR 30
TC 9
Z9 9
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 MAY 1
PY 2003
VL 588
IS 1
BP 578
EP 585
DI 10.1086/373921
PN 1
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 671EF
UT WOS:000182451800048
ER

PT J
AU Fryer, CL
   Meszaros, P
AF Fryer, CL
   Meszaros, P
TI Neutrino-driven explosions in gamma-ray bursts and hypernovae
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE stars : evolution
ID ACCRETION MODELS; MASSIVE STARS; NUCLEOSYNTHESIS; SUPERNOVAE
AB We study the physics behind the neutrino-driven mechanism for gamma-ray bursts (GRBs) and hypernovae, deriving the critical density at which these outbursts occur in the collapsar model. The agreement between this derivation and results from past collapsar simulations (MacFadyen & Woosley) is excellent, implying that we have captured the essential physics. We then use this derivation to study a range of progenitors for collapsar GRBs. We derive how much of the star will accrete onto the black hole core before the infall density drops below this critical density, leading to an estimate of the remnant black hole mass for GRBs and hypernovae. We also estimate the time delays between gravity-wave or neutrino signals and the onset of the explosion or burst event. This derivation, combined with future observational constraints, provides a physical insight into the structure of the GRB progenitor.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
   Penn State Univ, Dept Phys, University Pk, PA 16802 USA.
RP Fryer, CL (reprint author), Los Alamos Natl Lab, POB 1663,Mail Stop B288, Los Alamos, NM 87545 USA.
NR 12
TC 35
Z9 35
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 MAY 1
PY 2003
VL 588
IS 1
BP L25
EP L28
DI 10.1086/375412
PN 2
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 671EG
UT WOS:000182451900007
ER

PT J
AU Roussev, II
   Forbes, TG
   Gombosi, TI
   Sokolov, IV
   DeZeeuw, DL
   Birn, J
AF Roussev, II
   Forbes, TG
   Gombosi, TI
   Sokolov, IV
   DeZeeuw, DL
   Birn, J
TI A three-dimensional flux rope model for coronal mass ejections based on
   a loss of equilibrium
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE MHD; Sun : corona; Sun : coronal mass ejections (CMEs); Sun : flares;
   Sun : magnetic fields
ID MAGNETIC-FIELD; FLARES; SIMULATION
AB A series of simulation runs are carried out to investigate the loss of equilibrium of the three-dimensional flux rope configuration of Titov & Demoulin as a suitable mechanism for the initiation of coronal mass ejections. By means of these simulations, we are able to determine the conditions for which stable equilibria no longer exist. Our results imply that it is possible to achieve a loss of equilibrium even though the ends of the flux rope are anchored to the solar surface. However, in order to have the flux rope escape, it is necessary to modify the configuration by eliminating the arcade field.
C1 Univ Michigan, Ctr Space Environm Modeling, Ann Arbor, MI 48109 USA.
   Univ New Hampshire, Dept Phys, Durham, NH 03824 USA.
   Univ New Hampshire, Inst Study Earth Ocean & Space, Durham, NH 03824 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Roussev, II (reprint author), Univ Michigan, Ctr Space Environm Modeling, 2455 Hayward St, Ann Arbor, MI 48109 USA.
RI Roussev, Ilia/E-9141-2011; De Zeeuw, Darren/F-3667-2011; Gombosi,
   Tamas/G-4238-2011; Sokolov, Igor/H-9860-2013
OI Gombosi, Tamas/0000-0001-9360-4951; Sokolov, Igor/0000-0002-6118-0469
NR 18
TC 137
Z9 139
U1 0
U2 2
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 MAY 1
PY 2003
VL 588
IS 1
BP L45
EP L48
DI 10.1086/375442
PN 2
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 671EG
UT WOS:000182451900012
ER

PT J
AU Sinha, P
   Hobbs, PV
   Yokelson, RJ
   Christian, TJ
   Kirchstetter, TW
   Bruintjes, R
AF Sinha, P
   Hobbs, PV
   Yokelson, RJ
   Christian, TJ
   Kirchstetter, TW
   Bruintjes, R
TI Emissions of trace gases and particles from two ships in the southern
   Atlantic Ocean
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE ship emissions; particles from ships; gases from ships; emissions from
   ships; pollution from ships
ID CLOUDS; CLIMATE
AB Measurements were made of the emissions of particles and gases from two diesel-powered ships in the southern Atlantic Ocean off the coast of Namibia. The measurements are used to derive emission factors from ships of three species not reported previously, namely, black carbon, accumulation-mode particles, and cloud condensation nuclei (CCN), as well as for carbon dioxide, carbon monoxide (CO), methane (CH4) non-methane hydrocarbons, sulfur dioxide (SO2) nitrogen oxides (NOx), and condensation nuclei. The effects of fuel grade and engine power on ship emissions are discussed. The emission factors are combined with fuel usage data to obtain estimates of global annual emissions of various particles and gases from ocean-going ships. Global emissions of black carbon, accumulation-mode particles, and CCN from ocean-going ships are estimated to be 19-26 Gg yr(-1), (4.4-6.1) x 10(26) particles yr(-1), and (1.0-1.5) x 10(26) particles yr(-1), respectively. Black carbon emissions from ocean-going ships are similar to0.2% of total anthropogenic emissions. Emissions of NOx and SO2 from ocean-going ships are similar to10-14% and similar to3-4%, respectively, of the total emissions of these species from the burning of fossil fuels, and similar to40% and similar to70%, respectively, of the total emissions of these species from the burning of biomass. Global annual emissions of CO and CH4 from ocean-going ships are similar to2% and similar to2-5%, respectively, of natural oceanic emissions of these species. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
   Univ Montana, Dept Chem, Missoula, MT USA.
   Lawrence Berkeley Natl Lab, Berkeley, CA USA.
   Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
RP Hobbs, PV (reprint author), Univ Washington, Dept Atmospher Sci, Box 351640, Seattle, WA 98195 USA.
RI Yokelson, Robert/C-9971-2011
OI Yokelson, Robert/0000-0002-8415-6808
NR 23
TC 72
Z9 75
U1 2
U2 31
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 MAY
PY 2003
VL 37
IS 15
BP 2139
EP 2148
DI 10.1016/S1352-2310(03)00080-3
PG 10
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 672ZN
UT WOS:000182554100013
ER

PT J
AU Das, M
   Kang, DW
   Aneja, VP
   Lonneman, W
   Cook, DR
   Wesely, ML
AF Das, M
   Kang, DW
   Aneja, VP
   Lonneman, W
   Cook, DR
   Wesely, ML
TI Measurements of hydrocarbon air-surface exchange rates over maize
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE VOCs; maize; Zea mays; biogenic VOCs; VOC fluxes; hydrocarbons;
   air-surface exchange
ID VOLATILE ORGANIC-COMPOUNDS; BOUNDARY-LAYER; EMISSIONS; FLUXES;
   ATMOSPHERE; METHANOL; MODEL
AB Vertical gradients of volatile organic compounds (VOCs) were measured over a maize (Zea mays) field, in its early growth period, during May 1995, in the Lower Coastal Plains of North Carolina. These measurements were combined with micrometeorological flux measurements to determine emission flux measurements for various VOCs. This measurement program was part of project NOVA (Natural emissions of Oxidant precursors: Validation of techniques and Assessment) to estimate the flux of VOCs. Average emissions of VOCs (and standard error) was estimated to be 4900 +/- 700 mug/m(2)/h out of which emission for methanol averaged (3450 +/- 420) mug/m(2)/h. A methanol emission rate of 35 mug/g/h was calculated for maize from the estimated emission of methanol and biomass density for the site. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
   US EPA, Res Triangle Pk, NC 27711 USA.
   Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA.
RP Aneja, VP (reprint author), N Carolina State Univ, Dept Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
NR 31
TC 13
Z9 13
U1 1
U2 6
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 MAY
PY 2003
VL 37
IS 16
BP 2269
EP 2277
DI 10.1016/S1352-2310(03)00076-1
PG 9
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 676XY
UT WOS:000182778900009
ER

PT J
AU Safronova, UI
   Sataka, M
   Albritton, JR
   Johnson, WR
   Safronova, MS
AF Safronova, UI
   Sataka, M
   Albritton, JR
   Johnson, WR
   Safronova, MS
TI Relativistic many-body calculations of electric-dipole lifetimes,
   transition rates, and oscillator strengths for n=3 states in Al-like
   ions
SO ATOMIC DATA AND NUCLEAR DATA TABLES
LA English
DT Article
ID ALUMINUM ISOELECTRONIC SEQUENCE; BEAM-FOIL LIFETIME; GROTRIAN DIAGRAMS;
   SPECTRAL DATA; ATOMIC DATA; PROBABILITIES; FE; ENERGY; NI; TI
AB Transition rates, oscillator strengths, and line strengths are calculated for electric-dipole (EI) transitions between even-parity 3s3p(2), 3s(2)3d, 3p(2)3d, 3d(2)3s, and 3d(3) states and odd-parity 3s(2)3p, 3p(3), 3s3p3d, and 3d(2)3p states in Al-like ions with the nuclear charges ranging from Z = 15 to 100. Relativistic many-body perturbation theory (MBPT), including the Breit interaction, is used to evaluate retarded El matrix elements in length and velocity forms. The calculations start from a 1s(2)2s(2)2p(6) Dirac-Fock potential. First-order MBPT is used to obtain intermediate coupling coefficients and second-order MBPT is used to calculate transition matrix elements. Contributions from negative-energy states are included in the second-order El matrix elements to ensure gauge-independence of transition amplitudes. Transition energies used in the calculation of oscillator strengths and transition rates are from second-order MBPT. Transition rates, line strengths, and oscillator strengths are compared with critically evaluated experimental values and with results from other recent calculations. We present data for selected transitions between 10 of the possible 73 even-parity 3s3p(2), 3s(2)3d states and 29 of the possible 75 odd-parity 3s(2)3p, 3p(3), and 3s3p3d states in Al-like ions. Trends of the transition rates as functions of Z are illustrated graphically for 220 of the 3220 possible transitions. Lifetimes of the 10 even-parity lower levels and the 27 odd-parity upper levels are given for Z = 15-100. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
   Japan Atom Energy Res Inst, Dept Mat Sci, Tokai, Ibaraki 3191195, Japan.
   Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Safronova, UI (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
EM usafrono@nd.edu
NR 35
TC 32
Z9 33
U1 0
U2 1
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0092-640X
J9 ATOM DATA NUCL DATA
JI Atom. Data Nucl. Data Tables
PD MAY
PY 2003
VL 84
IS 1
BP 1
EP 83
DI 10.1016/S0092-640X(03)00013-5
PG 83
WC Physics, Atomic, Molecular & Chemical; Physics, Nuclear
SC Physics
GA 678WR
UT WOS:000182890100001
ER

PT J
AU Bearinger, JP
   Orme, CA
   Gilbert, JL
AF Bearinger, JP
   Orme, CA
   Gilbert, JL
TI In situ imaging and impedance measurements of titanium surfaces using
   AFM and SPIS
SO BIOMATERIALS
LA English
DT Article
DE titanium; titanium oxide; atomic force microscopy; electrochemical
   methods; corrosion; surface structure; interfaces
ID POLYCRYSTALLINE TIO2 FILMS; MOTT-SCHOTTKY PLOTS; OXIDE-FILMS;
   ELECTROCHEMICAL-BEHAVIOR; IMPLANT MATERIALS; STAINLESS-STEEL; PASSIVE
   FILMS; DISSOLUTION; ADSORPTION; SPECTROSCOPY
AB Surfaces of commercially pure titanium and titanium, 6-aluminum, 4-vanadium were subjected to simultaneous polarization/ impedance testing and in situ electrochemical atomic force microscopy imaging to evaluate how the structure and properties of the passive oxide film is affected by varying potential and hydration. Current transients were acquired via a step polarization impedance spectroscopy technique: the voltage was stepped between -1 and 1 V in 50 mV increments, while current transients and surface morphology were digitally recorded. Numerical Laplace transformation applied to the current transient data provided frequency-dependent admittance (impedance(-1)). Simultaneous AFM imaging of dry surfaces, initially hydrated surfaces, and surfaces immersed and changing with potential revealed that all sample surfaces were covered with protective titanium oxide domes that grew in area and coalesced due to hydration and as a function of increasing applied voltage and time. Reversal of dome growth did not occur upon voltage reduction, while impedance behavior was quasi-reversible, suggesting independence between structural and electrical properties. Oxide growth appeared to occur in part by lateral spreading and overgrowth of domes at the oxide-solution interface. Interfacial impedance data reflect oxide passivity and n-type semiconductor behavior. Non-linear Mott-Schottky fits specified multi-layer donor concentrations between 10(18) and 10(19) cm(-3), depending on the surface. (C) 2003 Published by Elsevier Science Ltd.
C1 Syracuse Univ, Dept Bioengn & Neurosci, Syracuse, NY 13244 USA.
   Lawrence Livermore Natl Lab, Med Technol Program, Livermore, CA USA.
   Northwestern Univ, Dept Biomed Engn, Evanston, IL 60208 USA.
RP Gilbert, JL (reprint author), Syracuse Univ, Dept Bioengn & Neurosci, Syracuse, NY 13244 USA.
EM gilbert@ecs.syr.edu
RI Orme, Christine/A-4109-2009
NR 37
TC 32
Z9 32
U1 1
U2 21
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0142-9612
J9 BIOMATERIALS
JI Biomaterials
PD MAY
PY 2003
VL 24
IS 11
BP 1837
EP 1852
AR PII S0142-9612(02)00547-1
DI 10.1016/S0142-9612(02)00547-1
PG 16
WC Engineering, Biomedical; Materials Science, Biomaterials
SC Engineering; Materials Science
GA 658KV
UT WOS:000181720900001
PM 12615474
ER

PT J
AU Kadam, KL
   McMillan, JD
AF Kadam, KL
   McMillan, JD
TI Availability of corn stover as a sustainable feedstock for bioethanol
   production
SO BIORESOURCE TECHNOLOGY
LA English
DT Article
DE corn stover; pulp and paper; furfural; strawboard; fiberboard;
   particleboard; medium-density fiberboard (MDF); ethanol
ID STRAW; TRANSPORTATION
AB The amount of corn stover that can be sustainably collected is estimated to be 80-100 million dry tonnes/yr (t/yr), a majority of which would be available to ethanol plants in the near term as only a small portion is currently used for other applications. Potential long-term demand for corn stover by non-fermentative applications in the United States is estimated to be about 20 million dry t/yr, assuming that corn stover-based products replace 50% of both hardwood pulp and wood-based particleboard, and that 50% of all furfural production is from corncobs. Hence, 60-80 million dry t/yr of corn stover should be available to fermentative routes. To achieve an ethanol production potential of 11 billion L (3 billion gal) per year (a target level for a non-niche feedstock), about 40% of the harvestable corn stover is needed. This amount should be available as long as the diversion of corn stover to non-ethanol fermentative products remains limited. (C) 2002 Elsevier Science Ltd. All rights reserved.
C1 Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Kadam, KL (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 55
TC 152
Z9 162
U1 0
U2 32
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0960-8524
J9 BIORESOURCE TECHNOL
JI Bioresour. Technol.
PD MAY
PY 2003
VL 88
IS 1
BP 17
EP 25
AR PII S0960-8524(02)00269-9
DI 10.1016/S0960-8524(02)00269-9
PG 9
WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy &
   Fuels
SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels
GA 668FT
UT WOS:000182280200003
PM 12573559
ER

PT J
AU Zhou, DM
   Liu, XD
   Kaczmarski, K
   Felinger, A
   Guiochon, G
AF Zhou, DM
   Liu, XD
   Kaczmarski, K
   Felinger, A
   Guiochon, G
TI Prediction of band profiles of mixtures of bradykinin and kallidin from
   data acquired by competitive frontal analysis
SO BIOTECHNOLOGY PROGRESS
LA English
DT Article
ID PERFORMANCE LIQUID-CHROMATOGRAPHY; ADSORPTION-ISOTHERMS; PROTEIN
   ADSORPTION; INSULIN VARIANTS; MASS-TRANSFER; AMINO-ACIDS; EQUILIBRIUM;
   ENANTIOMERS; SEPARATION; PEPTIDE
AB The competitive adsorption isotherms of two closely related peptides, bradykinin and kallidin, were measured by frontal analysis on a Zorbax SB-C18 microbore column. An aqueous soluton at 20% acetonitrile (0.1% TFA) was used as the mobile phase. The competitive isotherm data were fitted to four different models: Langmuir, Bilangmuir, Langmuir-Freundlich, and Toth. These data fitted best to a Bilangmuir isotherm model. The influence of the pressure on the retention factors of the two peptides was found to be small and was not investigated in detail. The band profiles of large samples of the single components and of their mixtures were recorded. The overloaded profiles calculated using either the equilibrium-dispersive or POR model are in excellent agreement with the experimental profiles in all cases. Our results confirm that the competitive isotherm data derived from mixtures may suffice for a reasonably accurate prediction of the band profiles of all mixtures of the two components, provided their composition is close to 1/1.
C1 Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN USA.
   Rzeszow Univ Technol, Fac Chem, PL-35929 Rzeszow, Poland.
RP Guiochon, G (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
RI Felinger, Attila/A-1595-2008
OI Felinger, Attila/0000-0001-7130-1968
NR 43
TC 18
Z9 18
U1 0
U2 5
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 MAY-JUN
PY 2003
VL 19
IS 3
BP 945
EP 954
DI 10.1021/bp020148h
PG 10
WC Biotechnology & Applied Microbiology; Food Science & Technology
SC Biotechnology & Applied Microbiology; Food Science & Technology
GA 740QN
UT WOS:000186413200036
PM 12790661
ER

PT J
AU Bhattacharyya, MH
   Regunathan, A
   Glesne, D
   Wilson, A
   Flores, T
AF Bhattacharyya, MH
   Regunathan, A
   Glesne, D
   Wilson, A
   Flores, T
TI Microarray analysis of bone cell gene expression early after cadmium
   gavage in mice
SO BONE
LA English
DT Meeting Abstract
CT 1ST Joint meeting of the
   International-Bone-and-Mineral-Society/Japanese-Society-for-Bone-and-Min
   eral-Research
CY JUN 03-07, 2003
CL OSAKA, JAPAN
SP Int Bone & Mineral Soc, Japanese Soc bone & Mineral Res
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
   Benedictine Univ, Lisle, IL USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 8756-3282
J9 BONE
JI Bone
PD MAY
PY 2003
VL 32
IS 5
SU S
BP S160
EP S160
PG 1
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 683AB
UT WOS:000183123300387
ER

PT J
AU Hillegonds, DJ
   Lin, Y
   Gertz, RE
   Fitzgerald, RL
   Vogel, JS
AF Hillegonds, DJ
   Lin, Y
   Gertz, RE
   Fitzgerald, RL
   Vogel, JS
TI Methods and application of accelerator mass spectrometry for highly
   accurate bone resorption determination utilizing 41CA
SO BONE
LA English
DT Meeting Abstract
CT 1ST Joint meeting of the
   International-Bone-and-Mineral-Society/Japanese-Society-for-Bone-and-Min
   eral-Research
CY JUN 03-07, 2003
CL OSAKA, JAPAN
SP Int Bone & Mineral Soc, Japanese Soc bone & Mineral Res
C1 Lawrence Livermore Natl Lab, Livermore, CA USA.
   Univ Calif Davis, Davis, CA 95616 USA.
   Univ Calif San Diego, San Diego, CA 92103 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 8756-3282
J9 BONE
JI Bone
PD MAY
PY 2003
VL 32
IS 5
SU S
BP S96
EP S96
PG 1
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 683AB
UT WOS:000183123300111
ER

PT J
AU Mills, E
AF Mills, E
TI Climate change, insurance and the buildings sector: technological
   synergisms between adaptation and mitigation
SO BUILDING RESEARCH AND INFORMATION
LA English
DT Article
DE buildings; climate change; energy efficiency; extreme weather;
   insurance; risk management
ID ENERGY-EFFICIENCY; FIRE
AB Examining the intersection of risk analysis and sustainable energy strategies reveals numerous examples of energy-efficient and renewable energy technologies that offer insurance loss-prevention benefits. The growing threat of climate change provides an added motivation for the risk community to understand better this area of opportunity. While analyses of climate change mitigation typically focus on the emissions-reduction characteristics of sustainable energy technologies, less often recognised are a host of synergistic ways in which these technologies also offer adaptation benefits, e.g. making buildings more resilient to natural disasters. While there is already some relevant activity, there remain various barriers to expanding these efforts significantly. Achieving successful integration of sustainable energy considerations with risk-management objectives requires a more proactive orientation, and coordination among diverse actors and industry groups.
C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Mills, E (reprint author), Lawrence Berkeley Natl Lab, MS 90-4000, Berkeley, CA 94720 USA.
NR 69
TC 24
Z9 24
U1 3
U2 9
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0961-3218
J9 BUILD RES INF
JI Build. Res. Informat.
PD MAY-AUG
PY 2003
VL 31
IS 3-4
BP 257
EP 277
DI 10.1080/0961321032000097674
PG 21
WC Construction & Building Technology
SC Construction & Building Technology
GA 688EE
UT WOS:000183419700007
ER

PT J
AU Miller, AJ
   Alexander, MA
   Boer, GJ
   Chai, F
   Denman, K
   Erickson, DJ
   Frouin, R
   Gabric, AJ
   Laws, EA
   Lewis, MR
   Liu, ZY
   Murtugudde, R
   Nakamoto, S
   Neilson, DJ
   Norris, JR
   Ohlmann, JC
   Perry, RI
   Schneider, N
   Shell, KM
   Timmermann, A
AF Miller, AJ
   Alexander, MA
   Boer, GJ
   Chai, F
   Denman, K
   Erickson, DJ
   Frouin, R
   Gabric, AJ
   Laws, EA
   Lewis, MR
   Liu, ZY
   Murtugudde, R
   Nakamoto, S
   Neilson, DJ
   Norris, JR
   Ohlmann, JC
   Perry, RI
   Schneider, N
   Shell, KM
   Timmermann, A
TI Potential feedbacks between Pacific Ocean ecosystems and interdecadal
   climate variations
SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
LA English
DT Review
ID SEA-SURFACE TEMPERATURE; NINO SOUTHERN OSCILLATION; GENERAL-CIRCULATION
   MODEL; NORTH PACIFIC; EL-NINO; EQUATORIAL PACIFIC; SST ANOMALIES;
   INTERANNUAL VARIABILITY; ANCHOVY POPULATIONS; DECADAL VARIABILITY
C1 Univ Calif San Diego, Scripps Inst Oceanog, Div Climate Res, La Jolla, CA 92093 USA.
   NOAA, Climate Diagnost Ctr, Boulder, CO 80303 USA.
   Univ Victoria, Meteorol Serv Canada, Victoria, BC, Canada.
   Univ Maine, Orono, ME USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Griffith Univ, Nathan, Qld 4111, Australia.
   Univ Hawaii Manoa, Honolulu, HI 96822 USA.
   Dalhousie Univ, Halifax, NS B3H 3J5, Canada.
   Univ Wisconsin, Madison, WI 53706 USA.
   Univ Maryland, College Pk, MD 20742 USA.
   Adv Earth Sci & Technol Org, Tokyo, Japan.
   Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA.
   Fisheries & Oceans Canada, Nanaimo, BC V9R 5K6, Canada.
   Inst Meereskunde, D-2300 Kiel, Germany.
RP Miller, AJ (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, Div Climate Res, La Jolla, CA 92093 USA.
EM ajmiller@ucsd.edu
RI Norris, Joel/A-9785-2008; Shell, Karen/C-5161-2009; Timmermann, Axel
   /F-4977-2011; Alexander, Michael/A-7097-2013
OI Norris, Joel/0000-0003-4384-0977; Shell, Karen/0000-0002-9059-6842;
   Timmermann, Axel /0000-0003-0657-2969; Alexander,
   Michael/0000-0001-9646-6427
NR 106
TC 36
Z9 37
U1 0
U2 5
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0003-0007
EI 1520-0477
J9 B AM METEOROL SOC
JI Bull. Amer. Meteorol. Soc.
PD MAY
PY 2003
VL 84
IS 5
BP 617
EP 633
DI 10.1175/BAMS-84-5-617
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 684TT
UT WOS:000183223200020
ER

PT J
AU Stock, SR
   Barss, J
   Dahl, T
   Veis, A
   Almer, JD
   De Carlo, F
AF Stock, SR
   Barss, J
   Dahl, T
   Veis, A
   Almer, JD
   De Carlo, F
TI Synchrotron X-ray studies of the keel of the short-spined sea urchin
   Lytechinus variegatus: Absorption microtomography (microCT) and small
   beam diffraction mapping
SO CALCIFIED TISSUE INTERNATIONAL
LA English
DT Article
DE Lytechinus variegatus; microtomography (microCT); sea urchin; tooth;
   X-ray diffraction; synchrotron radiation
ID REFRACTIVE LENSES; DETECTOR SYSTEMS; CALCITE; PROTEINS; TEETH;
   CALIBRATION; DISTORTIONS; GROWTH; DESIGN; IMAGE
AB In sea urchin teeth, the keel plays an important structural role, and this paper reports results of microstructural characterization of the keel of Lytechinus variegatus using two noninvasive synchrotron x-ray techniques: x-ray absorption microtomography (microCT) and x-ray diffraction mapping. MicroCT with 14 keV x-rays mapped the spatial distribution of mineral at the 1.3 mum level in a millimeter-sized fragment of a mature portion of the keel. Two rows of low absorption channels (i.e., primary channels) slightly less than 10 mum in diameter were found running linearly from the flange to the base of the keel and parallel to its sides. The primary channels paralleled the oral edge of the keel, and the microCT slices revealed a planar secondary channel leading from each primary channel to the side of the keel. The primary and secondary channels were more or less coplanar and may correspond to the soft tissue between plates of the carinar process. Transmission x-ray diffraction with 80.8 keV x-rays and a 0.1 mm beam mapped the distribution of calcite crystal orientations and the composition Ca1-xMgxCO3 of the calcite. Unlike the variable Mg concentration and highly curved prisms found in the keel of Paracentrotus lividus, a constant Mg content (x = 0.13) and relatively little prism curvature was found in the keel of Lytechinus variegatus.
C1 Northwestern Univ, Inst Bioengn & Nanosci Adv Med, Chicago, IL 60611 USA.
   Northwestern Univ, Sch Med, Dept Cell & Mol Biol, Chicago, IL 60611 USA.
   Argonne Natl Lab, SRI CAT, Adv Photon Source, Argonne, IL 60439 USA.
RP Stock, SR (reprint author), Northwestern Univ, Inst Bioengn & Nanosci Adv Med, Chicago, IL 60611 USA.
FU NIDCR NIH HHS [DE07201, KO8-DE00424, DE01374]
NR 31
TC 21
Z9 21
U1 0
U2 3
PU SPRINGER-VERLAG
PI NEW YORK
PA 175 FIFTH AVE, NEW YORK, NY 10010 USA
SN 0171-967X
J9 CALCIFIED TISSUE INT
JI Calcif. Tissue Int.
PD MAY
PY 2003
VL 72
IS 5
BP 555
EP 566
DI 10.1007/s00223-002-1037-2
PG 12
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 685ZG
UT WOS:000183294500004
PM 12721775
ER

PT J
AU Li, L
   Iglesia, E
AF Li, L
   Iglesia, E
TI Modeling and analysis of hydrogen permeation in mixed proton-electronic
   conductors
SO CHEMICAL ENGINEERING SCIENCE
LA English
DT Review
DE model; simulation; mass transfer; membrane; proton conduction
ID PEROVSKITE-TYPE OXIDES; HIGH-TEMPERATURE; MOBILITY;
   SRCE0.95YB0.05O3-ALPHA; MEMBRANES; TRANSPORT; BEHAVIOR; CERAMICS
AB A rigorous model for hydrogen permeation through dense mixed conductors was derived using the formalism of non-equilibrium thermodynamics for various operating modes and process conditions. The concentrations of charge carriers were rigorously included in this model through defect equilibria with the chemical environment at each membrane surface and through balance equations and a virtual pressure formalism within the membrane. Hydrogen permeation rates through proton-electron-hole mixed conductors were simulated using this framework under open-circuit, short-circuited, and applied potential operating modes. The sensitivity of H-2 permeation rates to the reduction-oxidation potentials at each side of the membrane and to the membrane properties (e.g. electron/hole diffusivity, oxygen binding energy) was examined in terms of the mobility and concentration of each charge carrier in order to identify rate-limiting steps for H-2 transport. These simulations showed that electronic transport controls H-2 permeation rates in proton-electron-hole mixed conductors typically used for H-2 permeation, especially when hydrogen chemical potentials are significantly different in the two sides of the membrane. These electronic conduction limitations arise from a region of very low electronic conductivity within the membrane, caused by a shift in the predominant charge carriers from electron to holes with decreasing hydrogen chemical potential. Under these asymmetrical conditions, H-2 permeation rates increase more markedly when an external electron-conducting path is introduced than at lower chemical potential gradients. Such interplay between rate-controlling variables leads to complex effects of H-2 chemical potential gradients on permeation rates. The effects of intrinsic membrane properties on H-2 permeation were examined by systematic changes in the defect equilibrium constants. A decrease in oxygen binding energy, manifested in a stronger tendency for reduction of the oxide membrane material, leads to higher electron concentrations and to higher rates for open-circuit operation, during which electron conduction limits H-2 transport rates. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Iglesia, E (reprint author), Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA.
RI Iglesia, Enrique/D-9551-2017
OI Iglesia, Enrique/0000-0003-4109-1001
NR 24
TC 16
Z9 17
U1 1
U2 16
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0009-2509
J9 CHEM ENG SCI
JI Chem. Eng. Sci.
PD MAY
PY 2003
VL 58
IS 10
BP 1977
EP 1988
DI 10.1016/S0009-2509(03)00057-5
PG 12
WC Engineering, Chemical
SC Engineering
GA 703ZD
UT WOS:000184312400004
ER

PT J
AU Fryer, CL
AF Fryer, CL
TI Black-hole formation from stellar collapse
SO CLASSICAL AND QUANTUM GRAVITY
LA English
DT Article; Proceedings Paper
CT 4th International LISA Symposium
CY JUL 19-24, 2002
CL PENN STATE UNIV, UNIVERSITY PK, PENNSYLVANIA
HO PENN STATE UNIV
ID GAMMA-RAY BURSTS; MASS; SUPERNOVAE; STARS
AB I review the end-state of massive stellar evolution, following the evolution of these massive stars from the onset of collapse through the formation of a compact remnant and the possible supernova or hypernova explosion. In particular, I concentrate on the formation of black holes from stellar collapse: the fraction of stars that form black holes, the black-hole mass distribution and the velocities these black-hole remnants may receive during their formation process.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Fryer, CL (reprint author), Los Alamos Natl Lab, POB 1663,MS B210, Los Alamos, NM 87545 USA.
NR 22
TC 3
Z9 3
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0264-9381
J9 CLASSICAL QUANT GRAV
JI Class. Quantum Gravity
PD MAY
PY 2003
VL 20
IS 10
BP S73
EP S80
AR PII S0264-9381(03)54233-2
DI 10.1088/0264-9381/20/10/309
PG 8
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles
   & Fields
SC Astronomy & Astrophysics; Physics
GA 693HE
UT WOS:000183710500010
ER

PT J
AU Schmidt, R
   Komistek, RD
   Blaha, JD
   Penenberg, BL
   Maloney, WJ
AF Schmidt, R
   Komistek, RD
   Blaha, JD
   Penenberg, BL
   Maloney, WJ
TI Fluoroscopic analyses of cruciate-retaining and medial pivot knee
   implants
SO CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
LA English
DT Article
ID ARTHROPLASTY
AB Contemporary posterior cruciate-retaining total knee designs have provided pain relief and improved knee function but have failed to reproduce the kinematics and stability of the normal nonarthritic knee. The Medial Pivot total knee design features a near constant radius of curvature of the femoral component. The tibial surface is highly congruent and asymmetric, permitting a medial pivot motion during knee flexion. The purpose of the current study was to analyze and compare the gait kinematics of the Sigma(R) posterior cruciate-retaining total knee implant, the Advance(R) Traditional posterior cruciate-retaining total knee implant, and the Advance(R) Medial Pivot knee implant using fluoroscopic analysis. In vivo kinematics were determined for 15 clinically successful total knee arthroplasties. Five knee implants were evaluated from each group. The authors analyzed the kinematics of knee motion during the stance phase of gait for each patient. On average, subjects with the Medial Pivot knee implant had a medial pivot motion. Both posterior cruciate-retaining designs had a paradoxical roll forward of the tibia on femur during knee flexion and had greater excursion of both condyles during knee flexion than the medial pivot de sign. Nine of 10 of the posterior cruciate-retaining designs had condylar lift-off averaging 1.7 mm whereas only one Medial Pivot knee implant had condylar lift-off measuring 1.1 mm.
C1 Texas Hip & Knee Ctr, Ft Worth, TX 76104 USA.
   Univ Tennessee, Knoxville, TN USA.
   Oak Ridge Natl Lab, Oak Ridge, TN USA.
   W Virginia Univ, Morgantown, WV 26506 USA.
   Cedars Sinai Med Ctr, Beverly Hills, CA USA.
   Washington Univ, Sch Med, St Louis, MO USA.
RP Texas Hip & Knee Ctr, 750 8th Ave,Suite 400, Ft Worth, TX 76104 USA.
EM rschmidt@caregate.net
NR 21
TC 54
Z9 55
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0009-921X
EI 1528-1132
J9 CLIN ORTHOP RELAT R
JI Clin. Orthop. Rel. Res.
PD MAY
PY 2003
IS 410
BP 139
EP 147
DI 10.1097/01.blo.0000063565.90853.a4
PG 9
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 674HB
UT WOS:000182630400015
PM 12771824
ER

PT J
AU Papac, MJ
   Dunn-Rankin, D
   Stipe, CB
   Lucas, D
AF Papac, MJ
   Dunn-Rankin, D
   Stipe, CB
   Lucas, D
TI N(2)CARS thermometry and O-2 LIF concentration measurements in a flame
   under electrically induced microbuoyancy
SO COMBUSTION AND FLAME
LA English
DT Article
DE microgravity combustion; electric field; diffusion flame; ion wind
ID STOKES-RAMAN-SPECTROSCOPY; INTERNAL-COMBUSTION ENGINE; CARS THERMOMETRY;
   FLUORESCENCE; LASER; TEMPERATURES
AB Microgravity combustion is fundamentally characterized by the absence of buoyancy driven flows. To facilitate a large range of diagnostics on microgravity flames, it is useful to create an equivalent microbuoyant condition in an earth-based laboratory. This experiment simulates microbuoyancy using electric fields to balance local convection in a region of the flame. Previous studies used N-2 coherent anti-Stokes Raman spectroscopy (CARS) temperature measurements to show that a region exists in which the temperature profile corresponds to that of a spherically symmetric diffusion profile, as would be expected in a true microgravity environment. The current study utilizes CARS thermometry and laser induced fluorescence (LIF) to examine the temperature and 0, concentration profiles in a region below the flame. The results show that the electrically balanced flame apparatus produces a spherically symmetric wedge of microbuoyant flame extending 10degrees from the vertical axis of the capillary flame arrangement; thereby quantifying the extent of the microbuoyant region. (C) 2003 The Combustion Institute. All rights reserved.
C1 Univ Calif Irvine, Dept Mech & Aerosp Engn, Irvine, CA 92697 USA.
   Univ Calif Berkeley, Dept Mech Engn, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Environm Energies Technol Div, Berkeley, CA 94720 USA.
RP Dunn-Rankin, D (reprint author), Univ Calif Irvine, Dept Mech & Aerosp Engn, Irvine, CA 92697 USA.
NR 25
TC 5
Z9 5
U1 0
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD MAY
PY 2003
VL 133
IS 3
BP 241
EP 254
DI 10.1016/S0010-2180(03)00011-7
PG 14
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
   Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 689YL
UT WOS:000183520500003
ER

PT J
AU Sinibaldi, JO
   Driscoll, JF
   Mueller, CJ
   Donbar, JM
   Carter, CD
AF Sinibaldi, JO
   Driscoll, JF
   Mueller, CJ
   Donbar, JM
   Carter, CD
TI Propagation speeds and stretch rates measured along wrinkled flames to
   assess the theory of flame stretch
SO COMBUSTION AND FLAME
LA English
DT Article
DE laminar premixed flames; propagation speed; diagnostics
ID LAMINAR BURNING VELOCITIES; TURBULENT FLAMES; PREMIXED FLAMES; JET
   FLAMES; AIR FLAMES; COMBUSTION; DYNAMICS
AB Local propagation speeds and stretch rates were measured along a premixed flame that undergoes unsteady wrinkling in order to see if these two quantities correlate in the manner that is predicted by the theory of flame stretch. The Markstein number, which relates these two quantities, also was measured. Previous studies had considered the simple geometries of counterflow or spherical flames, but in this case a complex geometry was generated by interacting a flame,with a vortex, such that both the strain and curvature components of the stretch rate are present. The diagnostics used were shadowgraph movies and simultaneous particle imaging velocimetry and OH planar laser-induced fluorescence. The overall conclusion is that the theory of flame stretch remains valid for these unsteady complex conditions, because the measured trends are found to be in agreement with trends predicted by the theory. That is, propagation speeds decrease at locations where positive stretch is applied to stable (lean propane-air and rich methane-air) flames. Conversely, propagation speeds increase where positive stretch was applied to unstable (lean methane-air) flames. The shape of the profiles of propagation speed along stable flames is opposite to that of unstable flames, as is predicted by the theory. However, values of Markstein number show large variations and are much larger than that of an outwardly propagating spherical flame. Negative strain regions are of particular interest because they previously had not been studied experimentally; these regions yield the largest propagation speeds for the stable cases and some negative speeds for the unstable cases. (C) 2003 The Combustion Institute. All rights reserved.
C1 Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA.
   Sandia Natl Labs, Livermore, CA USA.
   PRAS, AFRL, Wright Patterson AFB, OH 45433 USA.
RP Driscoll, JF (reprint author), Univ Michigan, Dept Aerosp Engn, Ann Arbor, MI 48109 USA.
OI Sinibaldi, Jose/0000-0002-9871-0590
NR 29
TC 20
Z9 20
U1 0
U2 6
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0010-2180
J9 COMBUST FLAME
JI Combust. Flame
PD MAY
PY 2003
VL 133
IS 3
BP 323
EP 334
DI 10.1016/S0010-2180(03)00016-6
PG 12
WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary;
   Engineering, Chemical; Engineering, Mechanical
SC Thermodynamics; Energy & Fuels; Engineering
GA 689YL
UT WOS:000183520500010
ER

PT J
AU Corum, JM
   Battiste, RL
   Ruggles-Wrenn, MB
AF Corum, JM
   Battiste, RL
   Ruggles-Wrenn, MB
TI Low-energy impact effects on candidate automotive structural composites
SO COMPOSITES SCIENCE AND TECHNOLOGY
LA English
DT Article
DE polymer-matrix composites; glass fibers; carbon fibers; impact behavior;
   strength
ID DAMAGE; EPOXY
AB The objective of the work described in this paper was to experimentally characterize the susceptibility of three candidate automotive structural composites to incidental, low-energy impact damage. The composites, each of which had the same urethane matrix, were produced by a rapid molding process suitable for high-volume automotive applications. The reinforcement for the first composite was a random chopped-glass-fiber, while the remaining two were reinforced with stitch-bonded carbon-fiber mats, one in a crossply layup, and the other in a quasi-isotropic layup. A pendulum device, representative of events such as tool drops, and a gas-gun projectile, representative of events such as kickups of roadway debris, were used to impact plate specimens. Brick-drop tests were also performed to assess the applicability of the baseline pendulum and gas-gun data to other events. Following the impacts, the damage areas were measured and the plates were cut into either tensile, standard compressive, or compression-after-impact specimens for determining strength degradation. The glass-fiber composite was least susceptible to damage, followed by the crossply carbon-fiber laminate, which had the same thickness. The quasi-isotropic carbon-fiber composite, which was thinner than the other two, sustained the most damage. While compressive strength was significantly degraded by moderate damage in the random-glass-fiber composite, tensile strength was not. On the other hand, both tensile and compressive strengths were degraded in the crossply carbon-fiber laminate (only compressive strength loss was measured in the quasi-isotropic laminate). Compressive strength degradation for a given damage area was similar in the two carbon-fiber laminates. Both showed lesser degradation than did the glass-fiber composite. For the quasi-isotropic carbon-fiber laminate, it was shown that strength degradation produced by an open circular hole provides a reasonable lower bound to the degradation due to an impact damage area of the same size. (C) 2002 Elsevier Science Ltd. All rights reserved.
C1 Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
RP Corum, JM (reprint author), Oak Ridge Natl Lab, Div Met & Ceram, POB 2008, Oak Ridge, TN 37831 USA.
EM corumjm@ornl.gov
RI Ruggles-Wrenn, Marina/J-6103-2014
NR 23
TC 14
Z9 20
U1 1
U2 9
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0266-3538
J9 COMPOS SCI TECHNOL
JI Compos. Sci. Technol.
PD MAY
PY 2003
VL 63
IS 6
BP 755
EP 769
AR PII S0266-3538(02)00265-8
DI 10.1016/S0266-3538(02)00265-8
PG 15
WC Materials Science, Composites
SC Materials Science
GA 658BK
UT WOS:000181701600001
ER

PT J
AU Sun, HD
   Li, M
   Xu, Y
AF Sun, HD
   Li, M
   Xu, Y
TI MOLVIE: an interactive visualization environment for molecular
   structures
SO COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE
LA English
DT Article
DE 3D structure of protein sequences; molecular graphics; interactive
   visualization; protein recognition; protein interaction
ID SECONDARY STRUCTURE; VIEWER; CN3D
AB A Molecular visualization interactive environment (MOLVIE), is designed to display three-dimensional (3D) structures of molecules and support the structural analysis and research on proteins. The paper presents the features, design considerations and applications Of MOLVIE, especially the new functions used to compare the structures of two molecules and view the partial fragment of a molecule. Being developed ill JAVA, MOLVIE is platform-independent. Moreover, it may run oil a webpage as an applet for remote users. MOLVIE is available at http://www.cs.ucsb.edu/similar to mli/Bioinf/software/index.html. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
C1 Univ Calif Santa Barbara, Dept Comp Sci, Bioinformat Lab, Santa Barbara, CA 93106 USA.
   Bioinformat Solut Inc, Waterloo, ON N2L 3L2, Canada.
   ORNL, Div Life Sci, Prot Informat Grp, Oak Ridge, TN 37830 USA.
RP Sun, HD (reprint author), Univ Calif Santa Barbara, Dept Comp Sci, Bioinformat Lab, Santa Barbara, CA 93106 USA.
NR 13
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCI IRELAND LTD
PI CLARE
PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE,
   IRELAND
SN 0169-2607
J9 COMPUT METH PROG BIO
JI Comput. Meth. Programs Biomed.
PD MAY
PY 2003
VL 71
IS 1
BP 85
EP 90
AR PII S0169-2607(02)00078-0
DI 10.1016/S0169-2607(02)00078-0
PG 6
WC Computer Science, Interdisciplinary Applications; Computer Science,
   Theory & Methods; Engineering, Biomedical; Medical Informatics
SC Computer Science; Engineering; Medical Informatics
GA 679ZF
UT WOS:000182951300008
PM 12725967
ER

PT J
AU Alvin, KF
   Robertson, AN
   Reich, GW
   Park, KC
AF Alvin, KF
   Robertson, AN
   Reich, GW
   Park, KC
TI Structural system identification: from reality to models
SO COMPUTERS & STRUCTURES
LA English
DT Article
ID EIGENSYSTEM REALIZATION-ALGORITHM; LINEAR-MULTIVARIABLE SYSTEMS; DAMAGE
   DETECTION; MODAL PARAMETERS; ZEROS; COMPUTATION; EXTRACTION; REDUCTION;
   WAVELETS
AB The paper is an expository contribution on the subject of structural system identification, measured signal processing and their applications to model-based structural health detection. The materials covered in this paper are by and large extracted from the three theses of the first three authors. The paper focuses on the state-space oriented system identification theory as specialized to structural dynamics governing equations of motion, a judicious use of wavelet transformation techniques for extracting impulse response functions, various input-output combinations for multi-input and multi-output problems, robust ways of identifying both proportional and non-proportional damping parameters, and the use of localized identification theory for damage detection from measured response data. The authors then offer several outstanding challenges in structural system identification theory and their applications. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Univ Colorado, Dept Aerosp Engn Sci, Ctr Aerosp Struct, Boulder, CO 80309 USA.
   Sandia Natl Labs, Struct Dynam Res, Albuquerque, NM 87185 USA.
   Los Alamos Natl Lab, ESA, WR, Los Alamos, NM 87545 USA.
   USAF, Res Lab, Air Vehicles Directorate, Wright Patterson AFB, OH 45433 USA.
RP Park, KC (reprint author), Univ Colorado, Dept Aerosp Engn Sci, Ctr Aerosp Struct, Campus Box 429, Boulder, CO 80309 USA.
RI park, k.c./E-8898-2010
NR 65
TC 79
Z9 83
U1 1
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7949
J9 COMPUT STRUCT
JI Comput. Struct.
PD MAY
PY 2003
VL 81
IS 12
BP 1149
EP 1176
DI 10.1016/S0045-7949(03)00034-8
PG 28
WC Computer Science, Interdisciplinary Applications; Engineering, Civil
SC Computer Science; Engineering
GA 672YX
UT WOS:000182552400004
ER

PT J
AU Myers, JD
   Chappell, AR
   Elder, M
   Geist, A
   Schwidder, J
AF Myers, JD
   Chappell, AR
   Elder, M
   Geist, A
   Schwidder, J
TI Re-integrating the research record
SO COMPUTING IN SCIENCE & ENGINEERING
LA English
DT Article
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Pacific NW Natl Lab, Richland, WA 99352 USA.
EM jimmyers@pnl.gov; Alan.Chappell@pnl.gov; Matthew.Elder@pnl.gov;
   gst@ornl.gov; schwidderj@ornl.gov
OI Myers, James/0000-0001-8462-650X; Chappell, Alan/0000-0003-0479-3223
NR 14
TC 7
Z9 7
U1 0
U2 0
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1521-9615
EI 1558-366X
J9 COMPUT SCI ENG
JI Comput. Sci. Eng.
PD MAY-JUN
PY 2003
VL 5
IS 3
BP 44
EP 50
DI 10.1109/MCISE.2003.1196306
PG 7
WC Computer Science, Interdisciplinary Applications
SC Computer Science
GA 669YY
UT WOS:000182380500009
ER

PT J
AU Hill, MA
   Hanrahan, RJ
   Haertling, CL
   Schulze, RK
   Lillard, RS
AF Hill, MA
   Hanrahan, RJ
   Haertling, CL
   Schulze, RK
   Lillard, RS
TI Influence of beryllides on the corrosion of commercial grades of
   beryllium
SO CORROSION
LA English
DT Article
DE beryllium; corrosion rate; galvanic corrosion; intermetallics;
   polarization resistance
ID INTERMETALLIC PHASES; LOCALIZED CORROSION; PERCOLATION MODEL; ALLOYS;
   PASSIVATION
AB The bulk form of the Be intermetallics FeAtBe4, FeBe5, and TiBe12 were examined in solutions ranging in pH from 2 to 12.5 at ambient temperature. The intermetallics were manufactured by arc-melting stoichiometric amounts of Be and the alloying elements Al, Ti, and Fe as indicated. Composition and structure were verified with x-ray diffraction. Polarization data along with open-circuit potential measurements were used to make mixed potential predictions of the electrochemical activity of the beryllides in commercial grades of Be. These predictions were verfied for FeBe5, by arc-melting a button consisting of Be-10 at% FeBe5. For near-neutral and slightly alkaline pH, the beryllides were passive at all potentials examined. In pH 2 solution, the beryllides were active. To characterize the oxide film on as-prepared and post-immersion samples, angle-resolved x-ray photoelectron spectroscopy (XPS) was used. In general, the near-surface oxide was stoichiormetric to hyper-stoichiometric oxidized Be. In some cases, selective dissolution was observed in the XPS data. In all cases, the oxide formed on samples exposed to pH 2 solution was thinner as compared to as-polished samples.
C1 Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Lillard, RS (reprint author), Los Alamos Natl Lab, Mat Corros & Environm Effects Lab, Div Mat Sci & Technol, MST-6,POB 1663, Los Alamos, NM 87545 USA.
NR 26
TC 4
Z9 4
U1 0
U2 0
PU NATL ASSN CORROSION ENG
PI HOUSTON
PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA
SN 0010-9312
J9 CORROSION
JI Corrosion
PD MAY
PY 2003
VL 59
IS 5
BP 424
EP 435
PG 12
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
   Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 676RU
UT WOS:000182766700005
ER

PT J
AU Schultz, AJ
   Henning, RW
   Hitchman, MA
   Stratemeier, H
AF Schultz, AJ
   Henning, RW
   Hitchman, MA
   Stratemeier, H
TI Influence of pressure and temperature on the crystal structure of
   deuterated ammonium copper tutton salt, (ND4)(2)[Cu(D2O)(6)](SO4)(2)
SO CRYSTAL GROWTH & DESIGN
LA English
DT Article
ID JAHN-TELLER DISTORTION; HEXAAQUACOPPER(II) SULFATE; NEUTRON-DIFFRACTION;
   DEPENDENCE; EPR; TRANSITION; CHEMISTRY; COMPLEXES
AB The influence of pressure on the unit cell parameters of deuterated ammonium copper(II) sulfate hexahydrate at various temperatures from 50 to 325 K obtained from pulsed neutron powder diffraction is reported. Application of pressure causes the structure to switch to a packing arrangement like that observed for the corresponding hydrogenous compound over the complete temperature range, with a higher pressure being required at lower temperatures. A pressure hysteresis occurs upon the release of pressure in the temperature range 303275 K and below similar to295 K the compound remains in the high pressure (high density) modification at 1 bar. As the temperature is raised from similar to296 to 298 K, the structure reverts progressively to the low-pressure modification. Using the Clapeyron equation, an enthalpy DeltaH of 259 cm(-1) at 260 K was evaluated for the transition. With zero applied pressure, a negative temperature expansion coefficient is observed above 230 K, apparently due to an increasing thermal population of the high-density packing arrangement at higher temperatures.
C1 Argonne Natl Lab, IPNS, Argonne, IL 60439 USA.
   Univ Tasmania, Sch Chem, Hobart, Tas 7001, Australia.
RP Schultz, AJ (reprint author), Argonne Natl Lab, IPNS, Bldg 360, Argonne, IL 60439 USA.
NR 25
TC 6
Z9 6
U1 0
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1528-7483
J9 CRYST GROWTH DES
JI Cryst. Growth Des.
PD MAY-JUN
PY 2003
VL 3
IS 3
BP 403
EP 407
DI 10.1021/cg025611c
PG 5
WC Chemistry, Multidisciplinary; Crystallography; Materials Science,
   Multidisciplinary
SC Chemistry; Crystallography; Materials Science
GA 680NP
UT WOS:000182984500017
ER

PT J
AU Xiong, YL
AF Xiong, YL
TI Solubility and speciation of rhenium in anoxic environments at ambient
   temperature and applications to the Black Sea
SO DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
LA English
DT Article
DE Black Sea; rhenium speciation; anoxic environments; thermodynamic
   properties of rhenium; rhenium disulfide; rhenate
ID MARINE-SEDIMENTS; PYRITE FORMATION; HYDROTHERMAL SOLUTIONS; CONSERVATIVE
   BEHAVIOR; REACTIVE IRON; TRACE-METALS; SULFUR; GEOCHEMISTRY; TRANSPORT;
   BASIN
AB The aqueous speciation of rhenium at the temperatures on or near the Earth's surface, especially in anoxic environments, is not well known. For the first time, the relative importance of ReO(4)(-) and the neutral rhenium species, Re(OH)04, is thermodynamically modeled in anoxic environments at ambient temperature where ReS(2) or its solid solution(s) is likely to control the solubility. This thermodynamic model suggests that ReO(4)(-) is an insignificant species in anoxic environments. In comparison to observed total rhenium concentrations in anoxic waters (from similar to3 to similar to30 pmol/kg), the contribution from ReO(4)(-) would be less than 10(-8) ppb (similar to4 x 10(-5) pmol/kg). In contrast, the neutral rhenium species is an important species in anoxic environments. At SigmaH(2)S= 10(-4) molal, 10(-2) ppb (similar to40 pmol/kg) of Re(OH)(4)(0) can exist in equilibrium with ReS(2) in the HS(-) field at a pH of about 9 or under the oxygen fugacity conditions imposed by the HS(-)/SO(4)(2-) redox couple, demonstrating its importance in anoxic environments. Applications of the present study to the Black Sea indicate that rhenium concentrations in the anoxic water column at depths ranging from 105 to similar to390 m can be successfully modeled as Re(OH)(4)(0), implying that the dominant species in solution may be Re(OH)(4)(0). (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Rutgers State Univ, Dept Geol Sci, Piscataway, NJ 08854 USA.
RP Xiong, YL (reprint author), Sandia Natl Labs, 4100 Natl Parks Highway, Carlsbad, NM 88220 USA.
EM yxiong@sandia.gov
NR 48
TC 8
Z9 8
U1 1
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0967-0637
J9 DEEP-SEA RES PT I
JI Deep-Sea Res. Part I-Oceanogr. Res. Pap.
PD MAY
PY 2003
VL 50
IS 5
BP 681
EP 690
DI 10.1016/S0967-0637(03)00037-2
PG 10
WC Oceanography
SC Oceanography
GA 767NX
UT WOS:000188458300007
ER

PT J
AU Zhang, QH
   Murcia, NS
   Chittenden, LR
   Richards, WG
   Michaud, EJ
   Woychik, RP
   Yoder, BK
AF Zhang, QH
   Murcia, NS
   Chittenden, LR
   Richards, WG
   Michaud, EJ
   Woychik, RP
   Yoder, BK
TI Loss of the Tg737 protein results in skeletal patterning defects
SO DEVELOPMENTAL DYNAMICS
LA English
DT Article
DE limb; skeletal patterning; Shh; Fgf; Hox; polydactyly; tooth; rescue;
   polycystic kidneys; cilia
ID POLYCYSTIC KIDNEY-DISEASE; VERTEBRATE LIMB DEVELOPMENT; LEFT-RIGHT
   ASYMMETRY; RIGHT AXIS DETERMINATION; APICAL ECTODERMAL RIDGE;
   SONIC-HEDGEHOG; POLARIZING ACTIVITY; PRIMARY CILIA; MOUSE MUTANT;
   INTRAFLAGELLAR TRANSPORT
AB Tg737 mutant mice exhibit pathologic conditions in numerous, tissues along with skeletal patterning defects. Herein, we characterize the skeletal pathologic conditions and confirm a role for Tg737 in skeletal patterning through transgenic rescue. Analyses were conducted in both the hypornorphic Tg737(orpk) allele, that results in duplication of digit one and in the null Tg737(Delta2-3betaGal) allele that is an embryonic lethal mutation exhibiting eight digits per I limb. In early limb buds, Tg737 expression is detected throughout the mesenchyme becoming concentrated in precartilage condensations at later stages. In situ analyses indicate that the Tg737(orpk) mutant limb defects are not associated with changes in expression of Shh, Ihh, HoxD11-13, Patched, BMPs, or Glis. Likewise, in Tg737(Delta2-3betaGal) mutant embryos, there was no change in Shh expression. However, in both alleles, Fgf4 was ectopically expressed on the anterior apical ectodermal. ridge. Collectively, the data argue for a dosage effect of Tg737 on the limb, phenotypes and that the polydactyly is independent of Shh misexpression.
C1 Univ Alabama, Dept Cell Biol, Birmingham, AL 35294 USA.
   Case Western Reserve Univ, Rainbow Babies & Childrens Hosp, Dept Pediat, Cleveland, OH 44106 USA.
   Lawrence Livermore Natl Lab, Genom Div, Livermore, CA USA.
   Amgen Inc, Metab Disorders Dept, Thousand Oaks, CA USA.
   Oak Ridge Associated Univ, Div Life Sci, Oak Ridge, TN USA.
   Jackson Lab, Bar Harbor, ME 04609 USA.
RP Yoder, BK (reprint author), Univ Alabama, Dept Cell Biol, 1530 3rd Ave S,MCLM652, Birmingham, AL 35294 USA.
FU NIDDK NIH HHS [DK55007, DK58939, DK062758, DK51068]
NR 79
TC 89
Z9 92
U1 0
U2 2
PU WILEY-LISS
PI NEW YORK
PA DIV JOHN WILEY & SONS INC, 605 THIRD AVE, NEW YORK, NY 10158-0012 USA
SN 1058-8388
J9 DEV DYNAM
JI Dev. Dyn.
PD MAY
PY 2003
VL 227
IS 1
BP 78
EP 90
DI 10.1002/dvdy.10289
PG 13
WC Anatomy & Morphology; Developmental Biology
SC Anatomy & Morphology; Developmental Biology
GA 673GD
UT WOS:000182571300008
PM 12701101
ER

PT J
AU Matmon, A
   Crouvi, O
   Enzel, Y
   Bierman, P
   Larsen, J
   Porat, N
   Amit, R
   Caffee, M
AF Matmon, A
   Crouvi, O
   Enzel, Y
   Bierman, P
   Larsen, J
   Porat, N
   Amit, R
   Caffee, M
TI Complex exposure histories of chert clasts in the late Pleistocene
   shorelines of Lake Lisan, southern Israel
SO EARTH SURFACE PROCESSES AND LANDFORMS
LA English
DT Article
DE cosmogenic nuclides; shorelines; Lake Lisan; alluvial storage
ID SITU COSMOGENIC NUCLIDES; DEAD-SEA GRABEN; EROSION RATES; LANDSCAPE
   EVOLUTION; SEDIMENT PRODUCTION; RADIOACTIVE DECAY; DENUDATION RATES;
   NAMIB DESERT; BE-10; AL-26
AB Activities of Al-26 and Be-10 in five chert clasts sampled from two beach ridges of late Pleistocene Lake Lisan, precursor of the Dead Sea in southern Israel, indicate low rates of chert bedrock erosion and complex exposure, burial, and by inference, transport histories. The chert clasts were derived from the Senonian Mishash Formation, a chert-bearing chalk, which is widely exposed in the Nahal Zin drainage basin, the drainage system that supplied most of the material to the beach ridges. Simple exposure ages, assuming only exposure at the beach ridge sampling sites, range from 35 to 354 ky; using the ratio Al-26/Be-10, total clast histories range from 0.46 to 4.3 My, unrelated to the clasts' current position and exposure period on the late Pleistocene beach ridges, 160-177 m below sea level. Optically stimulated luminescence dating of fine sediments from the same and nearby beach ridges yielded ages of 20.0 +/- 1.4 ka and 36.1 +/- 3.3 ka. These ages are supported by the degree of soil development on the beach ridges and correspond well with previously determined ages of Lake Lisan, which suggest that the take reached its highest stand around 27 000 cal. years BP.
   If the clasts were exposed only once and than buried beyond the range of significant cosmogenic nuclide production, then the minimum initial exposure and the total burial times before delivery to the beach ridge are in the ranges 50-1300 ky and 390-3130 ky respectively. Alternatively, the initial cosmogenic dosing could have occurred during steady erosion of the source bedrock. Back calculating such rates of rock erosion suggests values between 0-4 and 12 m My(-1). The relatively long burial periods indicate extended sediment storage as colluvium on slopes and/or as alluvial deposits in river terraces. Some clasts may have been stored for long periods in abandoned Pliocene and early Pleistocene routes of Nahal Zin to the Mediterranean before being transported again back into the Nahal Zin drainage system and washed on to the shores of Lake Lisan during the late Pleistocene. Copyright (C) 2003 John Wiley Sons, Ltd.
C1 Univ Vermont, Dept Geol, Burlington, VT 05405 USA.
   Hebrew Univ Jerusalem, Inst Earth Sci, IL-91904 Jerusalem, Israel.
   Univ Vermont, Dept Geol, Burlington, VT 05405 USA.
   Univ Vermont, Sch Natl Resources, Burlington, VT 05405 USA.
   Geol Survey Israel, IL-95501 Jerusalem, Israel.
   Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
RP US Geol Survey, 345 Middlefield Rd,MS 977 Menlo Pk, Menlo Pk, CA 94025 USA.
EM amatmon@usgs.gov
RI Caffee, Marc/K-7025-2015
OI Caffee, Marc/0000-0002-6846-8967
NR 90
TC 18
Z9 18
U1 0
U2 3
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0197-9337
EI 1096-9837
J9 EARTH SURF PROC LAND
JI Earth Surf. Process. Landf.
PD MAY
PY 2003
VL 28
IS 5
BP 493
EP 506
DI 10.1002/esp.454
PG 14
WC Geography, Physical; Geosciences, Multidisciplinary
SC Physical Geography; Geology
GA 687AL
UT WOS:000183353600004
ER

PT J
AU Wilcox, BP
   Breshears, DD
   Allen, CD
AF Wilcox, BP
   Breshears, DD
   Allen, CD
TI Ecohydrology of a resource-conserving semiarid woodland: Effects of
   scale and disturbance
SO ECOLOGICAL MONOGRAPHS
LA English
DT Article
DE banded vegetation; dryland hydrology; ecohydrology; erosion; landscape
   ecology; pinyon; pinon-juniper; runoff; semiarid hydrology; vegetation
   patches; water yield
ID PINYON-JUNIPER WOODLAND; PONDEROSA PINE HILLSLOPE; NEW-MEXICO;
   SOIL-MOISTURE; GRASSLAND/FOREST CONTINUUM; VEGETATION PATTERNS; EROSION
   PREDICTION; BANDED VEGETATION; CLIMATE VARIATION; SPATIAL PATTERN
AB In semiarid landscapes, the linkage between runoff and vegetation is a particularly close one. In this paper we report on the results of a long-term and multiple-scale study of interactions between runoff, erosion, and vegetation in a pi (n) over tilde on-juniper woodland in New Mexico. We use our results to address three knowledge gaps: (1) the temporal scaling relationships between precipitation and runoff; (2) the effects of spatial scale on runoff and erosion, as influenced by vegetation; and (3) the influence of disturbance on these relationships. On the basis of our results, we tested three assumptions that represent current thinking in these areas (as evidenced, for example, by explicit or implicit assumptions embedded in commonly used models). The first assumption, that aggregated precipitation can be used as a surrogate for total runoff in semiarid environments, was not verified by our findings. We found that when runoff is generated mainly by overland flow in these systems, aggregated precipitation amounts alone (by year, season, or individual event) are a poor predictor of runoff amounts. The second assumption, that at the hillslope and smaller scales runoff and erosion are independent of spatial scale, was likewise not verified. We found that the redistribution of water and sediment within the hillslope was substantial and that there was a strong and nonlinear reduction in unit-area runoff and erosion with increasing scale (our scales were slope lengths ranging from I in to 105 in). The third assumption, that disturbance-related increases in runoff and erosion remain constant with time, was partially verified. We found that for low-slope-gradient sites, disturbance led to accelerated runoff and erosion, and these conditions may persist for a decade or longer. On the basis of our findings, we further suggest that (a) disturbance alters the effects of scale on runoff and erosion in a predictable way-scale relationships in degraded areas will be fundamentally different from those in nondegraded areas because more runoff will escape-off site and erosion rates will be much higher; and (b) there exists a slope threshold, below which semiarid landscapes will eventually recover following disturbance and above which there will be no recovery without mitigation or remediation.
C1 Texas A&M Univ, Dept Rangeland Ecol & Management, College Stn, TX 77845 USA.
   Los Alamos Natl Lab, Environm Dynam & Spatial Anal Grp, Div Earth & Environm Sci, Los Alamos, NM 87545 USA.
   US Geol Survey, Midcontinent Ecol Sci Ctr, Jemez Mt Field Stn, Los Alamos, NM 87544 USA.
RP Wilcox, BP (reprint author), Texas A&M Univ, Dept Rangeland Ecol & Management, College Stn, TX 77845 USA.
RI Breshears, David/B-9318-2009
OI Breshears, David/0000-0001-6601-0058
NR 90
TC 186
Z9 203
U1 5
U2 54
PU ECOLOGICAL SOC AMER
PI WASHINGTON
PA 1990 M STREET NW, STE 700, WASHINGTON, DC 20036 USA
SN 0012-9615
EI 1557-7015
J9 ECOL MONOGR
JI Ecol. Monogr.
PD MAY
PY 2003
VL 73
IS 2
BP 223
EP 239
DI 10.1890/0012-9615(2003)073[0223:EOARSW]2.0.CO;2
PG 17
WC Ecology
SC Environmental Sciences & Ecology
GA 689NQ
UT WOS:000183500200004
ER

PT J
AU Fritz, JS
AF Fritz, JS
TI The role of organic solvents in the separation of nonionic compounds by
   capillary electrophoresis
SO ELECTROPHORESIS
LA English
DT Review
DE micellar electrokinetic chromatography; nonionic compounds; review
ID ZONE ELECTROPHORESIS; NONAQUEOUS MEDIA; ELECTROKINETIC CHROMATOGRAPHY;
   SURFACTANTS; RESOLUTION; ADDITIVES; MOLECULES; SULFATE; ANIONS
AB Although nonionic compounds can be separated by micellar electrokinetic chromatography (MEKC), application of this technique is restricted by a somewhat limited elution range. Incorporation of organic solvents in the background electrolyte (BGE) greatly extends the scope of MEKC and provides a major variable in optimizing, the separation of neutral analytes. This paper provides a systematic review of the principles and scope of the separation of neutral analytes by capillary electrophoresis (CE) in, organic-aqueous solution. The methods surveyed include those that use tetraalkylammonium salts, dioctyl sulfosuccinate, lauryl poly(oxyethylene) sulfate. Polyaromatic hydrocarbon (PAH) compounds can be separated using sodium hexadecyl sulfate in 70% methanol (30% aqueous) to 100% methanol.
C1 Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
   Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA.
RP Fritz, JS (reprint author), Iowa State Univ, Dept Chem, Ames, IA 50011 USA.
NR 29
TC 16
Z9 17
U1 1
U2 9
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 MAY
PY 2003
VL 24
IS 10
BP 1530
EP 1536
DI 10.1002/elps.200305397
PG 7
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 685CF
UT WOS:000183242700005
PM 12761782
ER

PT J
AU Siriwardane, RV
   Shen, MS
   Fisher, EP
AF Siriwardane, RV
   Shen, MS
   Fisher, EP
TI Adsorption of CO(2), N(2), and O(2) on natural zeolites
SO ENERGY & FUELS
LA English
DT Article
ID CARBON; ALUMINA; ZINC
AB Pressure swing adsorption (PSA) and temperature swing adsorption are potential techniques for removing CO(2) from high-pressure fuel gas streams. Natural zeolites are suitable candidate sorbents for use in the PSA process. Studies of volumetric gas adsorption Of CO(2), N(2), and O(2) on three natural zeolites, with different major cations, were conducted at 25 degreesC up to a pressure of 300 psi (2 x 10(6) Pa). Preferential adsorption Of CO(2) was observed with all three zeolites. The natural zeolite with the highest sodium content and highest surface area showed the highest CO(2) adsorption capacity. Competitive gas adsorption studies also showed that the zeolite with the highest sodium content gave the best separation Of CO(2) from the gas mixtures. Contact time did not affect the extent of adsorption of the zeolites. Temperature-programmed desorption studies indicated that the majority of the physically adsorbed CO(2) was desorbed at room temperature, while some strongly bound CO(2) was desorbed at 115 degreesC.
C1 US DOE, Natl Energy Technol Lab, Morgantown, WV 26507 USA.
RP Siriwardane, RV (reprint author), US DOE, Natl Energy Technol Lab, 3610 Collins Ferry Rd,POB 880, Morgantown, WV 26507 USA.
EM siriwardane@netl.doe.gov
NR 15
TC 90
Z9 98
U1 1
U2 14
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 MAY-JUN
PY 2003
VL 17
IS 3
BP 571
EP 576
DI 10.1021/ef020135l
PG 6
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 682JY
UT WOS:000183089500008
ER

PT J
AU Serban, M
   Lewis, MA
   Marshall, CL
   Doctor, RD
AF Serban, M
   Lewis, MA
   Marshall, CL
   Doctor, RD
TI Hydrogen production by direct contact pyrolysis of natural gas
SO ENERGY & FUELS
LA English
DT Article
ID NICKEL-CATALYSTS; DIRECT CRACKING; FOSSIL-FUELS; METHANE; DECOMPOSITION;
   DECARBONIZATION
AB In this paper, we propose the concept of utilizing the heat generated in Generation IV nuclear reactors to produce hydrogen and carbon from methane or natural gas by direct contact pyrolysis, a process that features zero greenhouse gas emissions. Methane or natural gas was bubbled through a bed of either low-melting-point metals (e.g., lead or tin), granular or catalytic materials (e.g., silicon carbide, a-alumina, NiMo/gamma-alumina), or a mechanical mixture of molten metal and solid media. The methane conversions were found to be dependent upon the contact time between the methane and the heat transfer media, as well as on the methane bubble size. The most efficient systems used for the pyrolysis process were found to be the ones in which natural gas was bubbled through Mott porous metal filters, in a bed of either 4-in. Sn + SiC or Sn, with the product stream comprised of almost 80 and 70 vol % of hydrogen at 750degreesC, respectively. The main advantage of this proposed system is the ease of buoyant separation of the generated carbon byproduct from the liquid heat transfer media. These experiments lay the groundwork for developing technical expertise in producing pure hydrogen cost-effectively by utilizing the heat energy contained in the liquid metal coolant in Generation IV nuclear reactors.
C1 Argonne Natl Lab, Div Energy Syst, Div Chem Technol, Argonne, IL 60439 USA.
RP Marshall, CL (reprint author), Argonne Natl Lab, Div Energy Syst, Div Chem Technol, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Marshall, Christopher/D-1493-2015
OI Marshall, Christopher/0000-0002-1285-7648
NR 27
TC 30
Z9 34
U1 4
U2 18
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 MAY-JUN
PY 2003
VL 17
IS 3
BP 705
EP 713
DI 10.1021/ef020271q
PG 9
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 682JY
UT WOS:000183089500028
ER

PT J
AU Gera, D
   Mathur, M
   Freeman, M
AF Gera, D
   Mathur, M
   Freeman, M
TI Parametric sensitivity study of a CFD-based coal devolatilization model
SO ENERGY & FUELS
LA English
DT Article
ID TEMPERATURE
C1 Fluent Inc, Morgantown, WV 26505 USA.
   US DOE, Natl Energy Technol Lab, Pittsburgh, PA 15236 USA.
RP Gera, D (reprint author), Fluent Inc, 3647 Collins Ferry Rd, Morgantown, WV 26505 USA.
NR 7
TC 13
Z9 17
U1 0
U2 1
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 MAY-JUN
PY 2003
VL 17
IS 3
BP 794
EP 795
DI 10.1021/ef020286o
PG 2
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 682JY
UT WOS:000183089500040
ER

PT J
AU Langniss, O
   Wiser, R
AF Langniss, O
   Wiser, R
TI The renewables portfolio standard in Texas: an early assessment
SO ENERGY POLICY
LA English
DT Article
AB Texas has rapidly emerged as one of the leading wind power markets in the United States. This development can be largely traced to a well-designed and carefully implemented renewables portfolio standard (RPS). The RPS is a new policy mechanism that has received increasing attention as an attractive approach to support renewable power generation. Though replacing existing renewable energy policies with an as-of-yet untested approach in the RPS is risky, early experience from Texas suggests that an RPS can effectively spur renewables development and encourage competition among renewable energy producers. Initial RPS targets in Texas were well exceeded by the end of 2001, with 915 MW of wind installed in that year alone. RPS compliance costs appear negligible with new wind projects reportedly contracted for well under 3(US)cent/k/Wh, in part as a result of a 1.7(US)cent/kWh production tax credit, an outstanding wind resource and an RPS that is sizable enough to drive project economies of scale. Obliged retail suppliers have been willing to enter into long-term contracts with renewable generators, reducing important risks for both the developer and the retail supplier. Finally, the country's first comprehensive renewable energy certificate program has been put into place to monitor and track RPS compliance. (C) 2002 Published by Elsevier Science Ltd.
C1 Lund Univ, Dept Environm & Energy Syst Studies, SE-22362 Lund, Sweden.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Langniss, O (reprint author), Lund Univ, Dept Environm & Energy Syst Studies, Gerdagatan 13, SE-22362 Lund, Sweden.
NR 22
TC 79
Z9 79
U1 1
U2 13
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
J9 ENERG POLICY
JI Energy Policy
PD MAY
PY 2003
VL 31
IS 6
BP 527
EP 535
AR PII S0301-4215(02)00095-2
DI 10.1016/S0301-4215(02)00095-2
PG 9
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA 647KK
UT WOS:000181091800005
ER

PT J
AU Deng, BL
   Lan, L
   Houston, K
   Brady, PV
AF Deng, BL
   Lan, L
   Houston, K
   Brady, PV
TI Effects of clay minerals on Cr(VI) reduction by organic compounds
SO ENVIRONMENTAL MONITORING AND ASSESSMENT
LA English
DT Article
DE chromate; clay minerals; illite; oxalate; reduction; smectite
ID IN-SITU REMEDIATION; CHROMIUM(VI) REDUCTION; HYDROGEN-SULFIDE;
   HEXAVALENT CHROMIUM; CHROMATE REDUCTION; FERROUS IRON; ACID; ADSORPTION;
   OXIDATION; KINETICS
AB The objective of this study is to examine the effect of clay minerals ( illite, montmorillonite, and kaolinite) on chromate (Cr(VI)) reduction by several low molecular weight organic compounds. Batch experiments at pH ranging from 3.0 to 6.0 and 25degreesC showed that 2: 1 layered clays illite and smectite catalyzed Cr(VI) reduction by oxalate. The catalytic effect increased as pH was decreased. The 1: 1 clay kaolinite had no catalytic effect under comparable conditions. Direct Cr(VI) reduction by reactive moieties associated with illite and montmorillonite was observed, but at a much slower rate than the catalytic pathway. Cr(VI) reduction by glyoxylic acid, glycolic acid, lactic acid, and mandelic acid was accelerated by illite, although aqueous phase reduction might occur in parallel. These results suggest that Cr(VI) reduction rates in subsurface environments rich in organic compounds may be elevated through catalysis of surface-bound metals and/or soluble species from the clay minerals, and as a result, higher than those expected from aqueous phase reaction alone. Such rate enhancement for Cr(VI) reduction needs to be accounted for when developing new remedial techniques for chromium site remediation or assessing its natural attenuation.
C1 New Mexico Inst Min & Technol, Dept Environm Engn, Socorro, NM 87801 USA.
   Sandia Natl Labs, Geochem Dept MS0750, Albuquerque, NM 87185 USA.
RP Deng, BL (reprint author), New Mexico Inst Min & Technol, Dept Environm Engn, Socorro, NM 87801 USA.
EM dengb@missouri.edu
OI Deng, Baolin/0000-0001-6569-1808
NR 52
TC 17
Z9 17
U1 3
U2 29
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0167-6369
J9 ENVIRON MONIT ASSESS
JI Environ. Monit. Assess.
PD MAY
PY 2003
VL 84
IS 1-2
BP 5
EP 18
DI 10.1023/A:1022890909779
PG 14
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 657WE
UT WOS:000181688700002
PM 12733805
ER

PT J
AU Punshon, T
   Bertsch, PM
   Lanzirotti, A
   McLeod, K
   Burger, J
AF Punshon, T
   Bertsch, PM
   Lanzirotti, A
   McLeod, K
   Burger, J
TI Geochemical signature of contaminated sediment remohilization revealed
   by spatially resolved X-ray microanalysis of annual rings of Salix nigra
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID PLASMA-MASS SPECTROMETRY; OAK TREE-RINGS; DENDROCHEMICAL ANALYSIS;
   RADIAL-DISTRIBUTION; HISTORICAL CHANGES; HEAVY-METALS; RED SPRUCE;
   DENDROANALYSIS; FLUORESCENCE; URANIUM
AB An X-ray microprobe was used to determine the concentration and distribution of Ni, U, and other metals within annual rings of willows (Salix nigra L.) from a former de facto radiological settling basin (Steed Pond; SP) and a depositional environment downstream (Tims Branch; TB) on the Savannah River Site (SRS). Geochemical and historical information about both areas are well documented. Following spillway breaches at SP in 1984 and the early 1990s, TB is inundated with contaminated sediments during storms. Bulk elemental composition of tree cores was determined using ICP-OES. Synchrotron X-ray fluorescence (SXRF) analysis showed that the metal contents of SP and TB cores were an order of magnitude higher than those from a reference site. TB cores were enriched with Ni in 1984 and 1991, corresponding with SP spillway breaches (containing 790 mg kg(-1) Ni in 1991). Cores from SP exhibited an extremely high Ni peak in 1996, approximately 5000 mg kg(-1), even though contaminant levels at SP did not change. The geochemical signature of contaminants recorded in TB annual rings reflected the significant sediment remobilization events consistent with the detailed history of the site, and at concentrations relative to their proximity to the source term. However, physiological processes occurring within impacted trees strongly influence the chronological accuracy of dendroanalysis and must be investigated further.
C1 Rutgers State Univ, Environm & Occupat Hlth Sci Inst, Consortium Risk Evaluat Stakeholder Participat, Div Life Sci, Piscataway, NJ 08854 USA.
   Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
   Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA.
RP Punshon, T (reprint author), Univ Georgia, Savannah River Ecol Lab, Drawer E, Aiken, SC 29802 USA.
NR 45
TC 28
Z9 30
U1 0
U2 10
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAY 1
PY 2003
VL 37
IS 9
BP 1766
EP 1774
DI 10.1021/es0261628
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 674KD
UT WOS:000182635200029
PM 12775047
ER

PT J
AU Diallo, MS
   Simpson, A
   Gassman, P
   Faulon, JL
   Johnson, JH
   Goddard, WA
   Hatcher, PG
AF Diallo, MS
   Simpson, A
   Gassman, P
   Faulon, JL
   Johnson, JH
   Goddard, WA
   Hatcher, PG
TI 3-D structural modeling of humic acids through experimental
   characterization, computer assisted structure elucidation and atomistic
   simulations. 1. Chelsea soil humic acid
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATIONS; RESONANCE MASS-SPECTROMETRY;
   NUCLEAR-MAGNETIC-RESONANCE; NATURAL ORGANIC-MATTER; AQUATIC
   FULVIC-ACIDS; ELECTROSPRAY-IONIZATION; INFRARED-SPECTROSCOPY;
   MULTIDIMENSIONAL NMR; SUBSTANCES; RESOLUTION
AB This paper describes an integrated experimental and computational framework for developing 3-D structural models for humic acids (HAS). This approach combines experimental characterization, computer assisted structure elucidation (CASE), and atomistic simulations to generate all 3-D structural models or a representative sample of these models consistent with the analytical data and bulk thermodynamic/structural properties of HAS. To illustrate this methodology, structural data derived from elemental analysis, diffuse reflectance FT-IR spectroscopy, 1-D/2-D (1)H and (13)C solution NMR spectroscopy, and electrospray ionization quadrupole time-of-flight mass spectrometry (ESI QqTOF MS) are employed as input to the CASE program SIGNATURE to generate all 3-D structural models for Chelsea soil humic acid (HA). These models are subsequently used as starting 3-D structures to carry out constant temperature-constant pressure molecular dynamics simulations to estimate their bulk densities and Hildebrand solubility parameters. Surprisingly, only a few model isomers are found to exhibit molecular compositions and bulk thermodynamic properties consistent with the experimental data. The simulated (13)C NMR spectrum of an equimolar mixture of these model isomers compares favorably with the measured spectrum of Chelsea soil HA.
C1 CALTECH, Mat & Proc Simulat Ctr, Beckman Inst, Pasadena, CA 91125 USA.
   Howard Univ, Dept Civil Engn, Washington, DC 20059 USA.
   Univ Toronto, Scarborough Coll, Dept Phys Sci, Toronto, ON M1C 1A4, Canada.
   Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
   Sandia Natl Labs, Computat Biol & Evolutionary Comp Dept, Livermore, CA 94551 USA.
   Ohio State Univ, Dept Chem, Columbus, OH 43210 USA.
RP Diallo, MS (reprint author), CALTECH, Mat & Proc Simulat Ctr, Beckman Inst, 139-74, Pasadena, CA 91125 USA.
EM diallo@wag.caltech.edu
NR 68
TC 50
Z9 51
U1 7
U2 27
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAY 1
PY 2003
VL 37
IS 9
BP 1783
EP 1793
DI 10.1021/es0259638
PG 11
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 674KD
UT WOS:000182635200031
PM 12775049
ER

PT J
AU Brooks, SC
   Fredrickson, JK
   Carroll, SL
   Kennedy, DW
   Zachara, JM
   Plymale, AE
   Kelly, SD
   Kemner, KM
   Fendorf, S
AF Brooks, SC
   Fredrickson, JK
   Carroll, SL
   Kennedy, DW
   Zachara, JM
   Plymale, AE
   Kelly, SD
   Kemner, KM
   Fendorf, S
TI Inhihition of bacterial U(VI) reduction by calcium
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID MICROBIAL REDUCTION; SHEWANELLA-PUTREFACIENS; DISSIMILATORY REDUCTION;
   ORGANIC-COMPLEXES; REDUCING BACTERIA; URANIUM REDUCTION;
   ESCHERICHIA-COLI; IRON; MANGANESE; INHIBITION
AB The rapid kinetics of bacterial U(VI) reduction and low solubility of uraninite (UO2,cr) make this process an attractive option for removing uranium from groundwater. Nevertheless, conditions that may promote or inhibit U(VI) reduction are not well-defined. Recent descriptions of Ca-UO2-CO3 complexes indicate that these species may dominate the aqueous speciation of U(VI) in many environments. We monitored the bacterial reduction of U(VI) in bicarbonate-buffered solution in the presence and absence of Ca. XAFS measurements confirmed the presence of a Ca-U(VI)-CO3 complex in the initial solutions containing calcium. Calcium, at millimolar concentrations (0.45-5 mM), caused a significant decrease in the rate and extent of bacterial U(VI) reduction. Both facultative (Shewanella putrefaciens strain CN32) and obligate (Desulfovibrio desulfuricans, Geobacter sulfurreducens) anaerobic bacteria were affected by the presence of calcium. Reduction of U(VI) ceased when the calculated system Eh reached -0.046 +/- 0.001 V, based on the Ca2UO2(CO3)(3) --> UO2,cr couple. The results are consistent with the hypothesis that U is a less energetically favorable electron acceptor when the Ca-UO2-CO3 complexes are present. The results do not support Ca inhibition caused by direct interactions with the cells or with the electron donor as the reduction of fumarate or Tc(VII)O-4(-) under identical conditions was unaffected by the presence of Ca.
C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
   Pacific NW Natl Lab, Richland, WA 99338 USA.
   Argonne Natl Lab, Argonne, IL 60439 USA.
   Stanford Univ, Dept Geol & Environm Sci, Stanford, CA 94305 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; ID, MRCAT/G-7586-2011; 
OI Brooks, Scott/0000-0002-8437-9788; Kennedy, David/0000-0003-0763-501X
NR 49
TC 163
Z9 168
U1 7
U2 44
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD MAY 1
PY 2003
VL 37
IS 9
BP 1850
EP 1858
DI 10.1021/es0210042
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 674KD
UT WOS:000182635200039
PM 12775057
ER

PT J
AU Punshon, T
   Gaines, KF
   Bertsch, PM
   Burger, J
AF Punshon, T
   Gaines, KF
   Bertsch, PM
   Burger, J
TI Bioavailability of uranium and nickel to vegetation in a contaminated
   riparian ecosystem
SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
LA English
DT Article
DE bioavailability; trophic transfer; uranium; nickel; transport
ID HYDROXYAPATITE ADDITION; SOIL PARTICLES; METALS; SEDIMENTS;
   IMMOBILIZATION; ABSORPTION; EXTRACTION; PLANTS
AB The lower portion of Tims Branch (TB), a second-order stream system on the Savannah River site (SC, USA), receives influx of mixed waste-contaminated sediments from Steed Pond, a former settling basin for target processing wastes for over three decades. The magnitude and distribution of U, Ni, and other metals and the potential for trophic movement were studied to facilitate risk assessment and determine potential remedial action. Total and sequential extraction of TB soils demonstrated contaminant heterogeneity both spatially and between operationally defined fractions. Metal concentrations were elevated within riparian zone soils in contrast to stream sediments, suggesting off-site transport. Leaf tissue from TB contained an order of magnitude more Ni than tissue from reference sites. Leaves from streamside trees contained no U but elevated Ni up to 75.4 (+/-25) mg/kg dry weight (dry wt). Understory flora (Discanthelium sp. and Andropogon sp.) contained high concentrations of U associated with leaves up to 518 (+/-7.5) mg/kg dry weight U. The contrast in contaminant content and ratio of streamside and understory vegetation may result from resuspension of particulate U and Ni onto leaf surfaces and represents a potential pathway for trophic movement. The findings of this study have important ramifications for remediation of the ecosystem, suggesting that a strategy based on contaminant immobilization may be the most appropriate.
C1 Rutgers State Univ, Div Life Sci, Environm & Occupat Hlth Sci Inst, Piscataway, NJ 08854 USA.
   Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
RP Punshon, T (reprint author), Rutgers State Univ, Div Life Sci, Environm & Occupat Hlth Sci Inst, 604 Allison Rd, Piscataway, NJ 08854 USA.
EM punshon@srel.edu
NR 31
TC 16
Z9 16
U1 2
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0730-7268
EI 1552-8618
J9 ENVIRON TOXICOL CHEM
JI Environ. Toxicol. Chem.
PD MAY
PY 2003
VL 22
IS 5
BP 1146
EP 1154
DI 10.1897/1551-5028(2003)022<1146:BOUANT>2.0.CO;2
PG 9
WC Environmental Sciences; Toxicology
SC Environmental Sciences & Ecology; Toxicology
GA 668HZ
UT WOS:000182285400025
ER

PT J
AU Yruela, I
   Miota, F
   Torrado, E
   Seibert, M
   Picorel, R
AF Yruela, I
   Miota, F
   Torrado, E
   Seibert, M
   Picorel, R
TI Cytochrome b(559) content in isolated photosystem II reaction center
   preparations
SO EUROPEAN JOURNAL OF BIOCHEMISTRY
LA English
DT Article
DE chromatography; cytochrome b(559); detergent; immunoblot; photosystem II
ID D1-D2-CYTOCHROME B559 COMPLEX; PIGMENT-PROTEIN COMPLEXES; THYLAKOID
   MEMBRANES; PHOTOINHIBITION; B-559; STOICHIOMETRY; SPECTROSCOPY;
   PROTECTION; TOPOGRAPHY; REDOX
AB The cytochrome b (559) content was examined in five types of isolated photosystem II D1-D2-cytochrome b (559) reaction center preparations containing either five or six chlorophylls per reaction center. The reaction center complexes were obtained following isolation procedures that differed in chromatographic column material, washing buffer composition and detergent concentration. Two different types of cytochrome b (559) assays were performed. The absolute heme content in each preparation was obtained using the oxidized-minus-reduced difference extinction coefficient of cytochrome b (559) at 559 nm. The relative amount of D1 and cytochrome b (559) alpha-subunit polypeptide was also calculated for each preparation from immunoblots obtained using antibodies raised against the two polypeptides. The results indicate that the cytochrome b (559) heme content in photosystem II reaction center complexes can vary with the isolation procedure, but the variation of the cytochrome b (559) alpha-subunit/D1 polypeptide ratio was even greater. This variation was not found in the PSII-enriched membrane fragments used as the RC-isolation starting material, as different batches of membranes obtained from spinach harvested at different seasons of the year or those from sugar beets grown in a chamber under controlled environmental conditions lack variation in their alpha-subunit/D1 polypeptide ratio. A precise determination of the ratio using an RC1-control sample calibration curve gave a ratio of 1.25 cytochrome b (559) alpha-subunit per 1.0 D1 polypeptide in photosystem II membranes. We conclude that the variations found in the reaction center preparations were due to the different procedures used to isolate and purify the different reaction center complexes.
C1 CSIC, Estac Expt Aula Dei, E-50080 Zaragoza, Spain.
   Basic Sci Ctr, Natl Renewable Energy Lab, Golden, CO USA.
RP Picorel, R (reprint author), CSIC, Estac Expt Aula Dei, Ctra Montanana 1005, E-50080 Zaragoza, Spain.
RI PICOREL, RAFAEL/K-7930-2014; Yruela, Inmaculada/A-9330-2015
OI PICOREL, RAFAEL/0000-0003-3791-129X; Yruela,
   Inmaculada/0000-0003-3608-4720
NR 36
TC 1
Z9 1
U1 0
U2 5
PU BLACKWELL PUBLISHING LTD
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DG, OXON, ENGLAND
SN 0014-2956
J9 EUR J BIOCHEM
JI Eur. J. Biochem.
PD MAY
PY 2003
VL 270
IS 10
BP 2268
EP 2273
DI 10.1046/j.1432-1033.2003.03597.x
PG 6
WC Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 675VP
UT WOS:000182717400017
PM 12752446
ER

PT J
AU Hamann, J
   Kwakkenbos, MJ
   de Jong, EC
   Heus, H
   Olsen, AS
   van Lier, RAW
AF Hamann, J
   Kwakkenbos, MJ
   de Jong, EC
   Heus, H
   Olsen, AS
   van Lier, RAW
TI Inactivation of the EGF-TM7 receptor EMR4 after the Pan-Homo divergence
SO EUROPEAN JOURNAL OF IMMUNOLOGY
LA English
DT Article
DE class B GPCR; EGF-TM7 family; EMR4; frameshift mutation
ID 7-SPAN TRANSMEMBRANE MOLECULE; PROTEIN-COUPLED RECEPTORS; DENDRITIC
   CELLS; CELLULAR LIGAND; MOUSE CD97; FAMILY; 7-TRANSMEMBRANE; CLONING;
   MEMBER; HUMAN-CHROMOSOME-19
AB We here report on the identification of a novel human EGF-TM7 receptor, designated EMR4. Like most EGF-TM7 receptor genes, EMR4 is localized on the short arm of chromosome 19, in close proximity to EMR1. Remarkably, due to a one-nucleotide deletion in exon 8, translation of human EMR4 would result in a truncated 232-amino acid protein lacking the entire seven-span transmembrane region. This deletion is not present in nonhuman primates, including chimpanzees, suggesting that EMR4 became nonfunctional only after human speciation, about five million years ago. Thus, EMR4 surprisingly accounts for a genetic difference between humans and primates related to immunity.
C1 Univ Amsterdam, Acad Med Ctr, Expt Immunol Lab, NL-1100 DE Amsterdam, Netherlands.
   Univ Amsterdam, Acad Med Ctr, Dept Cell Biol & Histol, NL-1105 AZ Amsterdam, Netherlands.
   NV Organon, Target Discovery Unit, NL-5340 BH Oss, Netherlands.
   US DOE, Joint Genome Inst, Walnut Creek, CA 94598 USA.
RP Hamann, J (reprint author), Univ Amsterdam, Acad Med Ctr, Expt Immunol Lab, POB 22700, NL-1100 DE Amsterdam, Netherlands.
RI Heus, Hans/F-9696-2015; 
OI van Lier, Rene/0000-0002-3201-7144; Kwakkenbos, Mark/0000-0003-0340-5655
NR 35
TC 29
Z9 31
U1 0
U2 3
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0014-2980
J9 EUR J IMMUNOL
JI Eur. J. Immunol.
PD MAY
PY 2003
VL 33
IS 5
BP 1365
EP 1371
DI 10.1002/eji.200323881
PG 7
WC Immunology
SC Immunology
GA 680DM
UT WOS:000182961100026
PM 12731063
ER

PT J
AU Asner, D
   Burkhardt, H
   De Roeck, A
   Ellis, J
   Gronberg, J
   Heinemeyer, S
   Schmitt, M
   Schulte, D
   Velasco, M
   Zimmermann, F
AF Asner, D
   Burkhardt, H
   De Roeck, A
   Ellis, J
   Gronberg, J
   Heinemeyer, S
   Schmitt, M
   Schulte, D
   Velasco, M
   Zimmermann, F
TI Higgs physics with a gamma gamma collider based on CLIC 1
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID SUPERSYMMETRIC STANDARD MODEL; ANOMALOUS MAGNETIC-MOMENT; PHOTON
   COLLIDER; LINEAR COLLIDER; MASS; BOSON; MSSM; PRECISION; PROGRAM
AB We present the machine parameters and physics capabilities of the CLIC Higgs Experiment (CLICHE), a low-energy gammagamma collider based on CLIC 1, the demonstration project for the higher-energy two-beam accelerator CLIC. CLICHE is conceived as a factory capable of producing around 20,000 light Higgs bosons per year. We discuss the requirements for the CLIC 1 beams and a laser backscattering system capable of producing a gammagamma total (peak) luminosity of 2.0 (0.36) x 10(34) cm(-2) s(-1) with E-CM(gammagamma) similar to 115 GeV. We show how CLICHE could be used to measure accurately the mass, (b) over barb, WW and gamma decays of a light Higgs boson. We illustrate how these measurements may distinguish between the Standard Model Higgs boson and those in supersymmetric and more general two-Higgs-doublet models, complementing the measurements to be made with other accelerators. We also comment on other prospects in gammagamma and e(-)gamma physics with CLICHE.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   CERN, CH-1211 Geneva 23, Switzerland.
   Brookhaven Natl Lab, Upton, NY 11973 USA.
   Northwestern Univ, Evanston, IL 60201 USA.
RP Asner, D (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 68
TC 25
Z9 25
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 MAY
PY 2003
VL 28
IS 1
BP 27
EP 44
DI 10.1140/epjc/s2002-01113-3
PG 18
WC Physics, Particles & Fields
SC Physics
GA 687VY
UT WOS:000183398700003
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
   Crittenden, J
   Goers, S
   Hartmann, H
   Hilger, E
   Irrgang, P
   Jakob, HP
   Kappes, A
   Katz, UF
   Kerger, R
   Kind, O
   Paul, E
   Rautenberg, J
   Renner, R
   Schnurbusch, H
   Stifutkin, A
   Tandler, J
   Voss, KC
   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
   Piotrzkowski, K
   Przybycien, MB
   Stopa, P
   Zawiejski, L
   Adamczyk, L
   Bold, T
   Grabowska-Bold, I
   Kisielewska, D
   Kowal, AM
   Kowal, M
   Kowalski, T
   Przybycien, M
   Kotanski, A
   Slominski, W
   Bauerdick, LAT
   Behrens, U
   Borras, K
   Cassel, DC
   Chiochia, V
   Darmheim, 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
   Martinez, M
   Melzer-Pellmann, IA
   Moritz, M
   Notz, D
   Petrucci, MC
   Polini, A
   Raval, A
   Schneekloth, U
   Selonke, F
   Surrow, B
   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
   Raach, H
   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
   Miller, DB
   Tapper, AD
   Walker, R
   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
   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
   Tassi, E
   Tiecke, H
   Tuning, N
   Velthuis, JJ
   Wiggers, L
   de Wolf, E
   Brummer, N
   Bylsma, B
   Durkin, LS
   Gilmore, J
   Ginsburg, CM
   Kim, CL
   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
   Cartiglia, N
   Cirio, R
   Costa, M
   Ferrero, MI
   Maselli, S
   Monaco, V
   Peroni, C
   Ruspa, M
   Sacchi, R
   Solano, A
   Staiano, 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, A
   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
   Crittenden, J
   Goers, S
   Hartmann, H
   Hilger, E
   Irrgang, P
   Jakob, HP
   Kappes, A
   Katz, UF
   Kerger, R
   Kind, O
   Paul, E
   Rautenberg, J
   Renner, R
   Schnurbusch, H
   Stifutkin, A
   Tandler, J
   Voss, KC
   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
   Piotrzkowski, K
   Przybycien, MB
   Stopa, P
   Zawiejski, L
   Adamczyk, L
   Bold, T
   Grabowska-Bold, I
   Kisielewska, D
   Kowal, AM
   Kowal, M
   Kowalski, T
   Przybycien, M
   Kotanski, A
   Slominski, W
   Bauerdick, LAT
   Behrens, U
   Borras, K
   Cassel, DC
   Chiochia, V
   Darmheim, 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
   Martinez, M
   Melzer-Pellmann, IA
   Moritz, M
   Notz, D
   Petrucci, MC
   Polini, A
   Raval, A
   Schneekloth, U
   Selonke, F
   Surrow, B
   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
   Raach, H
   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
   Miller, DB
   Tapper, AD
   Walker, R
   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
   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
   Tassi, E
   Tiecke, H
   Tuning, N
   Velthuis, JJ
   Wiggers, L
   de Wolf, E
   Brummer, N
   Bylsma, B
   Durkin, LS
   Gilmore, J
   Ginsburg, CM
   Kim, CL
   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
   Cartiglia, N
   Cirio, R
   Costa, M
   Ferrero, MI
   Maselli, S
   Monaco, V
   Peroni, C
   Ruspa, M
   Sacchi, R
   Solano, A
   Staiano, 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, A
   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 Measurement of high-Q(2) e(-)p neutral current cross sections at HERA
   and the extraction of xF(3)
SO EUROPEAN PHYSICAL JOURNAL C
LA English
DT Article
ID MONTE-CARLO GENERATOR; DEEP-INELASTIC SCATTERING; ZEUS BARREL
   CALORIMETER; PARTON DISTRIBUTIONS; NUCLEON SCATTERING; PROTON
   COLLISIONS; JET FRAGMENTATION; EVENT GENERATOR; EP COLLISIONS;
   E+E-PHYSICS
AB Cross sections for e(-)p neutral current deep inelastic scattering have been measured at a centre-of-mass energy of 318 GeV using an integrated luminosity of 15.9 pb(-1) collected with the ZEUS detector at HERA. Results on the double-differential cross-section d(2)sigma/dx dQ(2) in the range 185 < Q(2) < 50 000 GeV(2) and 0.0037 < x < 0.75, as well as the single-differential cross-sections dsigma/dQ(2), dsigma/dx and dsigma/dy for Q(2) > 200 GeV(2), are presented. To study the effect of Z-boson exchange, dsigma/dx has also been measured for Q(2) > 10 000 GeV(2). The structure function xF(3) has been extracted by combining the e(-)p results presented here with the recent ZEUS measurements of e(+)p neutral current deep inelastic scattering. All results agree well with the predictions of the Standard Model.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
   Andrews Univ, Berrien Springs, MI 49104 USA.
   Univ Bologna, Bologna, Italy.
   Ist Nazl Fis Nucl, I-40126 Bologna, Italy.
   Inst Phys, Bonn, Germany.
   Univ Bonn, D-5300 Bonn, Germany.
   Univ Bristol, HH Wills Phys Lab, Bristol BS8 1TL, Avon, England.
   Univ Calabria, Dept Phys, I-87036 Cosenza, Italy.
   Ist Nazl Fis Nucl, Cosenza, Italy.
   Chonnam Natl Univ, Kwangju, South Korea.
   Columbia Univ, Nevis Labs, New York, NY 10027 USA.
   Inst Nucl Phys, Krakow, Poland.
   Univ Min & Met Krakow, Fac Phys & Nucl Tech, Krakow, Poland.
   Jagiellonian Univ, Dept Phys, Krakow, Poland.
   DESY, Deutsch Elektronen Synchrotron, D-2000 Hamburg, Germany.
   DESY Zeuthen, Zeuthen, 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, Mitilini, Greece.
   Univ Hamburg, Inst Expt Phys, Hamburg, Germany.
   Univ London Imperial Coll Sci Technol & Med, High Energy Nucl Phys Grp, London, England.
   Forschungszentrum, Inst Kernphys, Julich, Germany.
   KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki, Japan.
   Minist Educ Sci Kazakhstan, Inst Phys & Technol, Alma Ata, Kazakhstan.
   Kyungpook Natl Univ, Taegu 702701, 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 Nucl Phys, Moscow, Russia.
   NIKHEF H, NL-1009 DB Amsterdam, Netherlands.
   Univ Amsterdam, NL-1009 DB 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.
   Polytech Univ, Sagamihara, Kanagawa, Japan.
   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, Raymond & Beverly Sackler Fac Exact Sci, IL-69978 Tel Aviv, Israel.
   Univ Tokyo, Dept Phys, Tokyo 113, Japan.
   Tokyo Metropolitan Univ, Dept Phys, Tokyo 158, Japan.
   Univ Turin, Dipartimento Fis Sperimentale, Turin, Italy.
   Ist Nazl Fis Nucl, I-10125 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, IL-76100 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.
   Univ Piemonte Orinetale, Novara, Italy.
   Univ Lodz, PL-90131 Lodz, Poland.
RP Chekanov, S (reprint author), 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; Dementiev,
   Roman/K-7201-2012; Katz, Uli/E-1925-2013; Wiggers, Leo/B-5218-2015;
   Tassi, Enrico/K-3958-2015; 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
OI Gladilin, Leonid/0000-0001-9422-8636; dusini,
   stefano/0000-0002-1128-0664; Goncalo, Ricardo/0000-0002-3826-3442; Katz,
   Uli/0000-0002-7063-4418; Wiggers, Leo/0000-0003-1060-0520; De Pasquale,
   Salvatore/0000-0001-9236-0748; Doyle, Anthony/0000-0001-6322-6195;
   Ferrando, James/0000-0002-1007-7816; 
NR 41
TC 58
Z9 58
U1 0
U2 2
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1434-6044
J9 EUR PHYS J C
JI Eur. Phys. J. C
PD MAY
PY 2003
VL 28
IS 2
BP 175
EP 201
DI 10.1140/rpjc/s2003-01163-y
PG 27
WC Physics, Particles & Fields
SC Physics
GA 696EH
UT WOS:000183873000002
ER

PT J
AU Ozcan, S
   Broun, DM
   Morgan, B
   Haselwimmer, RKW
   Sarrao, JL
   Kamal, S
   Bidinosti, CP
   Turner, PJ
   Raudsepp, M
   Waldram, JR
AF Ozcan, S
   Broun, DM
   Morgan, B
   Haselwimmer, RKW
   Sarrao, JL
   Kamal, S
   Bidinosti, CP
   Turner, PJ
   Raudsepp, M
   Waldram, JR
TI London penetration depth measurements of the heavy-fermion
   superconductor CeCoIn5 near a magnetic quantum critical point
SO EUROPHYSICS LETTERS
LA English
DT Article
ID THERMAL-CONDUCTIVITY; ANISOTROPY; CEIRIN5; IR; CO
AB We have measured the London penetration depth lambda( T) of CeCoIn5, a quantum-critical metal where superconductivity arises from a non-Fermi-liquid normal state. Using a tunnel diode oscillator with a novel coil geometry designed to avoid spurious contributions to lambda(T), we have established the existence of intrinsic and anomalous power law behaviour at low temperature. A systematic analysis raises the possibility that the unusual observations might be due to an extension of quantum criticality into the superconducting state.
C1 Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
   Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Univ British Columbia, Dept Earth & Ocean Sci, Vancouver, BC V6T 1Z4, Canada.
RP Ozcan, S (reprint author), Univ Cambridge, Cavendish Lab, Madingley Rd, Cambridge CB3 0HE, England.
RI Broun, David/C-2077-2008
NR 30
TC 42
Z9 42
U1 1
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 0295-5075
J9 EUROPHYS LETT
JI Europhys. Lett.
PD MAY
PY 2003
VL 62
IS 3
BP 412
EP 418
DI 10.1209/epl/i2003-00411-9
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 668LV
UT WOS:000182296200018
ER

PT J
AU Besseling, R
   Drose, T
   Vinokur, VM
   Kes, PH
AF Besseling, R
   Drose, T
   Vinokur, VM
   Kes, PH
TI Depinning of a vortex chain in a disordered flow channel
SO EUROPHYSICS LETTERS
LA English
DT Article
ID CHARGE-DENSITY WAVES; DRIVEN; SUPERCONDUCTORS; VORTICES; DYNAMICS;
   LATTICES; MEDIA; PHASE; MODEL
AB We study depinning of vortex chains in channels formed by static, disordered vortex arrays. Depinning is governed either by the barrier for defect nucleation or for defect motion, depending on whether the chain periodicity is commensurate or incommensurate with the surrounding arrays. We analyze the reduction of the gap between these barriers as a function of disorder. At large disorder, commensurability becomes irrelevant and the pinning force is reduced to a small fraction of the ideal shear strength of ordered channels. Implications for experiments on channel devices are discussed.
C1 Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands.
   Univ Hamburg, Inst Theoret Phys 1, D-20355 Hamburg, Germany.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Besseling, R (reprint author), Leiden Univ, Kamerlingh Onnes Lab, POB 9504, NL-2300 RA Leiden, Netherlands.
RI Besseling, Rut/A-7475-2011
OI Besseling, Rut/0000-0002-6144-3054
NR 23
TC 10
Z9 10
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 0295-5075
J9 EUROPHYS LETT
JI Europhys. Lett.
PD MAY
PY 2003
VL 62
IS 3
BP 419
EP 425
DI 10.1209/epl/i2003-00412-2
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 668LV
UT WOS:000182296200019
ER

PT J
AU Akcelik, V
   Biros, G
   Ghattas, O
   Long, KR
   Waanders, BV
AF Akcelik, V
   Biros, G
   Ghattas, O
   Long, KR
   Waanders, BV
TI A variational finite element method for source inversion for
   convective-diffusive transport
SO FINITE ELEMENTS IN ANALYSIS AND DESIGN
LA English
DT Article
ID VELOCITY TRACKING PROBLEM; NAVIER-STOKES FLOWS
AB We consider the inverse problem of determining an arbitrary source in a time-dependent convective-diffusive transport equation, given a velocity field and pointwise measurements of the concentration. Applications that give rise to such problems include determination of groundwater or airborne pollutant sources from measurements of concentrations, and identification of sources of chemical or biological attacks. To address ill-posedness of the problem, we employ Tikhonov and total variation regularization. We present a variational formulation of the first-order optimality system, which includes the initial-boundary value state problem, the final-boundary value adjoint problem, and the space-time boundary value source problem. We discretize in the space-time volume using Galerkin finite elements. Several examples demonstrate the influence of the density of the sensor array, the effectiveness of total variation regularization for discontinuous sources, the invertibility of the source as the transport becomes increasingly convection-dominated, the ability of the space-time inversion formulation to track moving sources, and the optimal convergence rate of the finite element approximation. Published by Elsevier Science B.V.
C1 Carnegie Mellon Univ, Mech Algorithms & Comp Lab, Dept Biomed Engn, Pittsburgh, PA 15213 USA.
   Carnegie Mellon Univ, Mech Algorithms & Comp Lab, Dept Civil & Environm Engn, Pittsburgh, PA 15213 USA.
   NYU, Courant Inst Math Sci, New York, NY 10012 USA.
   Sandia Natl Labs, Livermore, CA 94551 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Ghattas, O (reprint author), Carnegie Mellon Univ, Mech Algorithms & Comp Lab, Dept Biomed Engn, Pittsburgh, PA 15213 USA.
NR 13
TC 29
Z9 36
U1 1
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-874X
J9 FINITE ELEM ANAL DES
JI Finite Elem. Anal. Des.
PD MAY
PY 2003
VL 39
IS 8
BP 683
EP 705
DI 10.1016/S0168-874X(03)00054-4
PG 23
WC Mathematics, Applied; Mechanics
SC Mathematics; Mechanics
GA 677FG
UT WOS:000182795800001
ER

PT J
AU Stevens, RG
   Morris, JE
   Cordis, GA
   Anderson, LE
   Rosenberg, DW
   Sasser, LB
AF Stevens, RG
   Morris, JE
   Cordis, GA
   Anderson, LE
   Rosenberg, DW
   Sasser, LB
TI Oxidative damage in colon and mammary tissue of the HFE-knockout mouse
SO FREE RADICAL BIOLOGY AND MEDICINE
LA English
DT Article
DE iron; hemochromatosis; oxidative stress; MDA; free radicals
ID HEREDITARY HEMOCHROMATOSIS; DNA-DAMAGE; IRON; CARCINOGENESIS; CANCER;
   MODEL; HEME; ASSOCIATION; PROTEINS; RADICALS
AB The HFE mutation is common and, when homozygous, can lead to a morbid accumulation of body iron and the disease hereditary hemochromatosis. Heterozygotes compose 10-15% of the European-American population, and have evidence of elevated body iron compared to homozygous normal people. Dietary iron content was hypothesized to interact with the HFE genotype to influence oxidative damage in mammary and colon tissue. Two groups of HFE-knockout mice were fed a standard iron diet (300 ppm) or a low iron diet (30 ppm). There was a significantly elevated concentration of malondialdehyde (by HPLC) in mammary (305 pmol/g vs. 166, p = .04) and colon (349 pmol/g vs. 226, p = .02) tissue among those mice on the standard iron diet compared to those on the low iron diet. These results suggest that dietary modification may affect the course of iron overload from HFE mutations. (C) 2003 Elsevier Inc.
C1 Univ Connecticut, Ctr Hlth, Dept Community Med, Farmington, CT 06030 USA.
   Pacific NW Natl Lab, Richland, WA USA.
RP Stevens, RG (reprint author), Univ Connecticut, Ctr Hlth, Dept Community Med, 263 Farmington Ave, Farmington, CT 06030 USA.
FU NCI NIH HHS [P20-CA93931]
NR 29
TC 15
Z9 15
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0891-5849
J9 FREE RADICAL BIO MED
JI Free Radic. Biol. Med.
PD MAY 1
PY 2003
VL 34
IS 9
BP 1212
EP 1216
DI 10.1016/S0891-5849(03)00072-8
PG 5
WC Biochemistry & Molecular Biology; Endocrinology & Metabolism
SC Biochemistry & Molecular Biology; Endocrinology & Metabolism
GA 668WD
UT WOS:000182315400011
PM 12706501
ER

PT J
AU Ebey, PS
   Dole, JM
   Hoffer, JK
   Nasise, JE
   Nobile, A
   Nolen, RL
   Sheliak, JD
AF Ebey, PS
   Dole, JM
   Hoffer, JK
   Nasise, JE
   Nobile, A
   Nolen, RL
   Sheliak, JD
TI Development of the Los Alamos National Laboratory cryogenic pressure
   loader
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE inertial fusion targets; cryogenics; beta layering
ID TARGET
AB Targets for inertial-fusion research and ignition at OMEGA, the National Ignition Facility, LMJ, and future facilities rely on beta-radiation-driven layering of spherical cryogenic DT ice layers contained within plastic or metal shells. Plastic shells will be permeation filled at room temperature then cooled to cryogenic temperatures before removal of the overpressure. The cryogenic pressure loader (CPL) was recently developed at Los Alamos National Laboratory as a testbed for studying the filling and layering of plastic target shells with DT A technical description of the CPL is provided. The CPL consists of a cryostat; which contains a high-pressure permeation cell, and has optical access for investigating beta layering. The cryostat is housed within a tritium glovebox that contains manifolds for supplying high-pressure DT The CPL shares some design elements with the cryogenic target handling system at the OMEGA facility to allow testing of tritium issues related to that system. The CPL has the capability to fill plastic targets by permeation to pressures up to 100 MPa and to cool them to 15 K. The CPL will accommodate a range of targets and may be modified for future experiments.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Gen Atom Co, San Diego, CA 92121 USA.
RP Ebey, PS (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 7
TC 4
Z9 4
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 259
EP 269
PG 11
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000003
ER

PT J
AU Steckle, WP
   Nobile, A
AF Steckle, WP
   Nobile, A
TI Low-density materials for use in inertial fusion targets
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE polymer foam; low density; metal dopant
ID DESIGN
AB Low-density polymer foams have been an integral part of targets used in inertial confinement fusion (ICF) experiments. Target designs are unique in the ICF program, and targets are made on an individual basis. Costs for these targets are high due to the time required to machine, assemble, and characterize each target. To produce targets in high volume and at low cost, a polymer system is required that is amenable to scale up. High internal phase emulsion (HIPE) polystyrene is a robust system that offers great flexibility in terms of tailoring the density and incorporating metal dopants. Emulsions used to fabricate HIPE foams currently are made in a batch process. With the use of metering pumps for both the water and oil phases, emulsions can be produced in a continuous process. This not only makes these foams potential candidates for direct-drive capsules, but high-Z dopants can be metered in making these foams attractive for hohlraum components in indirect-drive systems. Preparation of HIPE foams are discussed for both direct-drive and indirect-drive systems.
C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Polymer & Coatings Grp, Los Alamos, NM 87545 USA.
RP Steckle, WP (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Polymer & Coatings Grp, Los Alamos, NM 87545 USA.
NR 11
TC 9
Z9 10
U1 0
U2 3
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 301
EP 306
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000008
ER

PT J
AU Streit, J
   Schroen, D
AF Streit, J
   Schroen, D
TI Development of divinylbenzene foam shells for use as inertial fusion
   energy reactor targets
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE divinylbenzene; microencapsulation; fusion capsules
AB An overview of the present status of development of a hollow foam shell designed to produce high yields when used in a krypton fluoride inertial fusion energy (IFE) reactor is presented. Prototype shells have been produced from a 100 mg/cm(3) density CH foam with an similar to4-mm diameter and 300 mum wall thickness. A triple-orifice droplet generator was used to form the shells using solutions of an internal water phase, an oil phase (divinylbenzene monomer, dibutyl phthalate solvent, and a radical initiator), and an external water phase. The lowest percent of nonconcentricity measured for a completed shell was 3%, and the lowest average percent of nonconcentricity for a batch of shells was 7%. A technique to overcoat the shells with a 1- to 5-mum-thick full-density polymer layer using an interfacial polycondensation reaction is being developed. Methods to further optimize dimensions to produce shells that meet IFE specifications are also discussed.
C1 Schafer Corp, Livermore, CA 94551 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Streit, J (reprint author), Schafer Corp, 303 Lindbergh Ave, Livermore, CA 94551 USA.
NR 8
TC 23
Z9 24
U1 1
U2 6
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 321
EP 326
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000011
ER

PT J
AU Perlado, JM
   Lodi, D
   Marian, J
   Plata, AG
   Salvador, M
   Colombo, L
   Caturla, MJ
   De la Rubia, TD
AF Perlado, JM
   Lodi, D
   Marian, J
   Plata, AG
   Salvador, M
   Colombo, L
   Caturla, MJ
   De la Rubia, TD
TI Time-dependent neutronics in structural materials of inertial fusion
   reactors and simulation of defect accumulation in pulsed Fe and SiC
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE inertial fusion energy; multiscale modeling materials; time-dependent
   radiation damage
ID MOLECULAR-DYNAMICS; SILICON; CARBON
AB New results are presented on the time-dependent neutron intensities and energy spectra from compressed inertial fusion energy (IFE) targets and in structural Fe walls behind typical IFE chamber protection schemes. Protection schemes of LiPb and Flibe have been considered with two different thicknesses, and neutron fluxes in the outer Fe layer as a function of the time from target emission are given. Differences between the two solutions are noted and explained, and the effect of thickness is quantitatively shown. Time-dependent defect characterization of the Fe layer under pulse irradiation is presented. A new well-established multiscale modeling procedure injects, at the appropriate dose rate, damage cascades in a kinetic Monte Carlo lattice (microscopic) to study defect diffusion, clustering, and disintegration. The differences with a continuous irradiation for a still low fluence of irradiation are presented. Experimental validation of a multiscale modeling approach has been recognized and proposed in the Spanish VENUS-II project by using Fe ions on pure and ultrapure Fe. To study similar problems in SiC, new tools are needed to quantify the kinetic defects; results leading to the validation of a new tight binding molecular dynamics code for SiC are presented.
C1 Univ Politecn Madrid, Inst Fus Nucl, ETSII, E-28006 Madrid, Spain.
   Lawrence Livermore Natl Lab, Livermore, CA USA.
   Univ Cagliari, I-09124 Cagliari, Italy.
RP Perlado, JM (reprint author), Univ Politecn Madrid, Inst Fus Nucl, ETSII, Jose Gutierrez Abascal 2, E-28006 Madrid, Spain.
RI Caturla, Maria /D-6241-2012; Colombo, Luciano/D-9013-2013
OI Caturla, Maria /0000-0002-4809-6553; Colombo,
   Luciano/0000-0001-5335-4652
NR 28
TC 1
Z9 1
U1 1
U2 9
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 384
EP 392
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000020
ER

PT J
AU Sharp, WM
   Callahan, DA
   Tabak, M
   Yu, SS
   Peterson, PF
   Welch, DR
   Rose, DV
   Olson, CL
AF Sharp, WM
   Callahan, DA
   Tabak, M
   Yu, SS
   Peterson, PF
   Welch, DR
   Rose, DV
   Olson, CL
TI Modeling chamber transport for heavy-ion fusion
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE heavy-ion fusion; chamber transport; simulation
ID TARGET CHAMBER; DESIGN; BEAMS; SIMULATIONS; PLASMA
AB In a typical thick-liquid-wall scenario for heavy-ion fusion (HIF), between 70 and 200 high-current beams approach the target chamber in entry pipes and propagate similar to3 m to the target. Since molten-salt jets are planned to protect the chamber wall, the beams move through vapor from the jets, and collisions between beam ions and this background gas both strip the ions and ionize the gas molecules. Radiation from the preheated target causes further beam stripping and gas ionization. Because of this stripping, beams for HIF are expected to require substantial neutralization in a target chamber. Much recent research has, therefore, focused on beam neutralization by electron sources that were neglected in earlier simulations, including emission from walls and the target, photoionization by the target radiation, and preneutralization by a plasma generated along the beam path. When these effects are included in simulations with practicable beam and chamber parameters, the resulting focal spot is approximately the size required by a distributed radiator target.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Berkeley, CA 95720 USA.
   Mission Res Corp, Albuquerque, NM 87104 USA.
   Sandia Natl Labs, Albuquerque, NM 87107 USA.
RP Sharp, WM (reprint author), Lawrence Livermore Natl Lab, L-645, Livermore, CA 94550 USA.
NR 27
TC 18
Z9 19
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 393
EP 400
PG 8
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000021
ER

PT J
AU Debonnel, CS
   Welch, DR
   Rose, DV
   Yu, SS
   Peterson, PF
AF Debonnel, CS
   Welch, DR
   Rose, DV
   Yu, SS
   Peterson, PF
TI Gas transport and density control in the HYLIFE heavy-ion beam lines
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE heavy-ion fusion; beam line; gas density
ID MAGNETIC-FIELD; PLASMA
AB The effective propagation and focusing of heavy-ion beams in the final-focus magnet region of inertial fusion target chambers require controlling the background gas density and pressure in the beam tubes. Liquid vortexes will coat the inside of the tubes next to the beam ports and will help eliminate the need for mechanical shutters to mitigate the venting of target chamber background gas into the final-focus magnet region. Before the neutralizing region, the beam space charge is high, and ablation and target debris deposition in the final-focus magnet region may cause voltage breakdown. Previous studies focused on evaluating the amount of target chamber debris reaching the entrance of the beam ports. The TSUNAMI code has now been used to assess the density, temperature, and velocity of the vortex debris transported similar to3 m up the beam tubes and reaching the final-focus magnet region, assuming that the liquid vortexes are perfectly absorbing surfaces. To further mitigate debris deposition in the final-focus magnet region, and prevent voltage breakdown, a "magnetic shutter" has been envisaged to divert the debris out of the final-focus region. This shutter will prevent the hot ablation debris from reaching the magnet region and, coupled to some ionizing scheme, will conveniently suppress early ingression of debris into the final-focus magnet region.
C1 Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Heavy Ion Inertial Fus Virtual Natl Lab, Berkeley, CA 94720 USA.
   Mission Res Corp, Albuquerque, NM 87110 USA.
RP Debonnel, CS (reprint author), Univ Calif Berkeley, Dept Nucl Engn, 4118 Etcheverry Hall, Berkeley, CA 94720 USA.
NR 5
TC 7
Z9 7
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 408
EP 413
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000023
ER

PT J
AU Gentile, CA
   Fan, HM
   Hartfield, JW
   Hawryluk, RJ
   Hegeler, F
   Heitzenroeder, PJ
   Jun, CH
   Ku, LP
   LaMarche, PH
   Myers, MC
   Parker, JJ
   Parsells, RF
   Payen, M
   Raftopoulos, S
   Sethian, JD
AF Gentile, CA
   Fan, HM
   Hartfield, JW
   Hawryluk, RJ
   Hegeler, F
   Heitzenroeder, PJ
   Jun, CH
   Ku, LP
   LaMarche, PH
   Myers, MC
   Parker, JJ
   Parsells, RF
   Payen, M
   Raftopoulos, S
   Sethian, JD
TI Development of a silicon-based electron beam transmission window for use
   in a KrF excimer laser system
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE KrF laser; electron transmission; hibachi window
AB Princeton Plasma Physics Laboratory, in collaboration with the Naval Research Laboratory, is currently investigating various novel materials (single-crystal silicon, (100), (110), and (111)) for use as electron beam transmission windows in a krypton fluoride (KrF) excimer laser system. The primary function of the window is to isolate the active medium (excimer gas) from the excitation mechanism (field-emission diodes). The chosen window geometry must accommodate electron energy transfer >80% (750 keV) while maintaining the structural integrity during the mechanical load (1.3- to 2.0-atm base pressure differential, similar to0.5-atm cyclic pressure amplitude, 5-Hz repetition rate) and the thermal load across the entire hibachi area (similar to0.9 W.cm(-2)). In addition, the window must be chemically resistant to attack by fluorine free radicals (hydrofluoric acid, secondary). In accordance with these structural, functional, and operational parameters, a 22.4-mm square silicon prototype window, coated with 500-nm thin-film silicon nitride (Si3N4), has been fabricated. The window consists of 81 square panes 0.019 +/- 0.001 mm thick. The stiffened (orthogonal) sections are 0.065 mm wide and 0.500 mm thick (approximate). Assessment of silicon (and silicon nitride) material properties and computer-aided design modeling/analysis of the window design suggest that silicon may be a viable solution to inherent parameters and constraints.
C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
   Commonwealth Technol Inc, Alexandria, VA 22315 USA.
   USN, Res Lab, Washington, DC 20375 USA.
RP Gentile, CA (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
NR 35
TC 0
Z9 0
U1 0
U2 2
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 414
EP 419
PG 6
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000024
ER

PT J
AU Moses, EI
   Wuest, CR
AF Moses, EI
   Wuest, CR
TI The National Ignition Facility: Status and plans for laser fusion and
   high-energy-density experimental studies
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE lasers; fusion; inertial fusion
AB The National Ignition Facility (NIF), currently under, construction at the University of California's Lawrence Livermore National Laboratory, is a stadium-sized facility containing a 192-beam, 1.8-MJ, 500-TW, 351-nm laser system and a 10-m-diam target chamber with room for nearly 100 experimental diagnostics. NIF is being built by the National Nuclear Security Administration and when completed will be the world's largest laser experimental system, providing a national center to study inertial confinement fusion and the physics of matter at extreme energy densities and pressures. NIF will provide 192 energetic laser beams that will compress small fusion targets to conditions where they will ignite and burn, liberating more energy than is required to initiate the fusion reactions. NIF experiments will allow the study of physical processes at temperatures approaching 100 million K and 100 billion times atmospheric pressure. These conditions exist naturally only in the interior of stars and in nuclear weapons explosions. In the course of designing the world's most energetic laser system, a number of significant technology breakthroughs have been achieved Research is also underway to develop a shorter pulse capability on NIF for very high power and extreme electromagnetic field research and applications. We discuss here the technology challenges and solutions that have made NIF possible, along with enhancements to NIF's design that could lead to near-exawatt power levels.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Moses, EI (reprint author), Lawrence Livermore Natl Lab, POB 808,L-466, Livermore, CA 94551 USA.
NR 7
TC 49
Z9 50
U1 3
U2 10
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 420
EP 427
PG 8
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000025
ER

PT J
AU Rochau, GE
   Morrow, CW
   Pankuch, PJ
AF Rochau, GE
   Morrow, CW
   Pankuch, PJ
TI A concept for containing inertial fusion energy pulses in a
   Z-Pinch-Driven Power Plant
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE inertial fusion energy; Z-pinch; containment
AB The Z-Pinch Power Plant (ZP-3) is the first concept to use the results at Sandia National Laboratories' Z accelerator in a powerplant application. Assuming high-yield fusion pulses (of 1 to 20 GJ per shot at a rate Of 0.1 Hz), we consider a unique shock and energy absorbing system to contain the energy. One concept answers the need for system standoff from the fusion reaction with a replaceable mechanical cartridge manufactured on-site. System studies suggest integrated blanket designs for absorbing the fusion energy, cartridge manufacture of recycled materials, and cartridge installation/replacement to maintain a reasonable duty cycle. An effective system design for ZP-3 requires an integrated blanket to shield the permanent structures from the high-energy neutron flux and strong shock wave, breed tritium, and simultaneously absorb the released fusion energy. We investigate the feasibility of this integrated blanket concept and explore the principles of a containment chamber-a crucible - and the containment mechanisms. An operational cycle is proposed to physically load hardware in 10-s intervals while maintaining operational conditions. Preliminary pressure and shock calculations demonstrate that high-yield inertial fusion energy pulses can be contained if the appropriate energy-absorbing materials are used.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
   EG&G Tech Serv Inc, Albuquerque, NM 87106 USA.
RP Rochau, GE (reprint author), Sandia Natl Labs, POB 5800,MS-0748, Albuquerque, NM 87185 USA.
NR 5
TC 5
Z9 6
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 447
EP 455
PG 9
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000028
ER

PT J
AU Reyes, S
   Latkowski, JF
   Cadwallader, LC
AF Reyes, S
   Latkowski, JF
   Cadwallader, LC
TI Safety and environmental aspects of inertial fusion energy: An overview
   of recent activities and developments in the United States
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE inertial fusion; safety; environment
AB During the past 2 yr, significant progress has been made in several areas related to the safety and environmental (S&E) aspects of inertial fusion energy (IFE). An updated methodology has been developed, and accident analyses have been performed for two IFE conceptual powerplants and a target fabrication facility. Parallel to the consequence analyses of different accident scenarios, ongoing studies of accident initiating events are being used to support safety assessment and create a basic framework of types of events to consider in future risk characterization of new plant designs. Target designers/ fabrication specialists have been provided with ranking information related to the S&E characteristics of candidate target materials. We have revisited waste management options for IFE, introducing the concept of clearance versus the traditional shallow land burial. A brief summary of results in each of these activities is given, and plans for future work are outlined.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA.
RP Reyes, S (reprint author), Lawrence Livermore Natl Lab, POB 808,L-641, Livermore, CA 94550 USA.
RI Cadwallader, Lee/F-6933-2014
NR 22
TC 1
Z9 1
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 468
EP 472
PG 5
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000030
ER

PT J
AU Sanz, J
   Falquina, R
   Rodriguez, A
   Cabellos, O
   Reyes, S
   Latkowski, JF
AF Sanz, J
   Falquina, R
   Rodriguez, A
   Cabellos, O
   Reyes, S
   Latkowski, JF
TI Monte-carlo uncertainty analyses of pulsed activation in the National
   Ignition Facility gunite shielding
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 2nd International Atomic Energy Agency Technical Meeting
CY JUN 17-19, 2002
CL SAN DIEGO, CALIFORNIA
DE uncertainty analysis of activation responses; pulsed activation;
   National Ignition Facility
AB The global effect of activation cross-section uncertainties on calculated radiological quantities is investigated for the first time using a methodology based on Monte Carlo random sampling. The method is applied to the calculation of the uncertainty in the contact dose rate from the gunite shielding of the National Ignition Facility chamber after 30 yr of pulsed irradiation. Some critical cross section contributing significantly to the overall uncertainty are identified By a reasonable reduction of the uncertainty in those cross sections, the accuracy in the calculated total contact dose rate is greatly improved.
C1 Univ Nacl Educ Distancia, Dept Ingn Energet, E-28040 Madrid, Spain.
   Univ Politecn Madrid, Inst Fus Nucl, Madrid, Spain.
   Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Sanz, J (reprint author), Univ Nacl Educ Distancia, Dept Ingn Energet, Ciudad Univ S-N, E-28040 Madrid, Spain.
NR 8
TC 8
Z9 8
U1 0
U2 1
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD MAY
PY 2003
VL 43
IS 3
BP 473
EP 477
PG 5
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 667JT
UT WOS:000182229000031
ER

PT J
AU Deng, W
   Tsao, SW
   Guan, XY
   Lucas, JN
   Cheung, ALM
AF Deng, W
   Tsao, SW
   Guan, XY
   Lucas, JN
   Cheung, ALM
TI Role of short telomeres in inducing preferential chromosomal aberrations
   in human ovarian surface epithelial cells: A combined telomere
   quantitative fluorescence in situ hybridization and whole-chromosome
   painting study
SO GENES CHROMOSOMES & CANCER
LA English
DT Article
ID CELLULAR SENESCENCE; HUMAN-LYMPHOCYTES; HUMAN FIBROBLASTS; VIRAL
   ONCOGENES; DNA PROBES; LENGTH; INSTABILITY; TUMORS; IMMORTALIZATION;
   ABNORMALITIES
AB It is well established that specific cancers and immortalized cells have nonrandom chromosome aberrations. However, little is understood about the underlying mechanism that initiates these aberrations in human cells. To examine whether human chromosomes with the shortest telomeres initiate the preferential chromosomal aberrations before cellular immortalization, we simultaneously applied telomere quantitative fluorescence in situ hybridization and specific whole-chromosome painting on chromosomes 1, 5, 8, 17, 19, and 20 in human ovarian surface epithelial (HOSE 6-3) cells expressing human papilloma viral oncogenes (HPV16 E6E7) The HPV16 E6E7-expressing cells, with extended in vitro life span and telomerase-negative status, were previously identified as having nonrandom chromosomal imbalances and high frequencies of dicentrics. Our analyses showed that among six pairs of targeted chromosomes, chromosomes 8 and 20 showed critically short telomeres with an undetectable telomere signal in more than 50% of cells analyzed. These chromosomes with the critically short telomeres were preferentially involved in various types of chromosomal aberrations including dicentrics, translocations, breaks, insertions, and losses or gains of chromosomal elements. Our findings suggest that nonrandom chromosome aberrations in HOSE cells occurring before cellular immortalization could be caused by the telomere length heterogeneity. (C) 2003 Wiley-Liss, Inc.
C1 Univ Hong Kong, Dept Anat, Fac Med, Hong Kong, Hong Kong, Peoples R China.
   Univ Hong Kong, Dept Clin Oncol, Hong Kong, Hong Kong, Peoples R China.
   Lawrence Livermore Natl Lab, Livermore, CA USA.
   AL Tech Biomed Inc, Arlington, VA USA.
RP Cheung, ALM (reprint author), Univ Hong Kong, Dept Anat, Fac Med, 1-F Lab Block,Bldg,21 Sassoon Rd, Hong Kong, Hong Kong, Peoples R China.
RI Cheung, Annie/C-4230-2009; Tsao, George/C-4422-2009; Guan,
   Xin-Yuan/A-3639-2009; Deng, Wen/C-4154-2009; 
OI Guan, Xin-Yuan/0000-0002-4485-6017; /0000-0003-3217-1456
NR 30
TC 21
Z9 22
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 1045-2257
J9 GENE CHROMOSOME CANC
JI Gene Chromosomes Cancer
PD MAY
PY 2003
VL 37
IS 1
BP 92
EP 97
DI 10.1002/gcc.10190
PG 6
WC Oncology; Genetics & Heredity
SC Oncology; Genetics & Heredity
GA 665AA
UT WOS:000182096400010
PM 12661010
ER

PT J
AU Zacchi, P
   Sblattero, D
   Florian, F
   Marzari, R
   Bradbury, ARM
AF Zacchi, P
   Sblattero, D
   Florian, F
   Marzari, R
   Bradbury, ARM
TI Selecting open reading frames from DNA
SO GENOME RESEARCH
LA English
DT Article
ID BIOLOGICALLY-ACTIVE PEPTIDES; SITE-SPECIFIC RECOMBINATION; FILAMENTOUS
   PHAGE DISPLAY; LIGAND-BINDING DOMAINS; IN-VITRO SELECTION;
   HUMAN-ANTIBODIES; EPITOPE LIBRARY; PROTEIN INTERACTIONS; LINEAR
   EPITOPES; CDNA LIBRARIES
AB We describe a method to select DNA encoding functional open reading frames (ORFs) from noncoding DNA within the context of a specific vector. Phage display has been used as an example, but any system requiring DNA encoding protein fragments, for example, the yeast two-hybrid system, could be used. By cloning DNA fragments upstream of a fusion gene, consisting of the beta-lactamase gene flanked by lox recombination sites, which is, in turn, upstream of gene 3 from fd phage, only those clones containing DNA fragments encoding ORFs confer ampicillin resistance and survive. After selection, the beta-lactamase gene can be removed by Cre recombinase, leaving a standard phage display vector with ORFs fused to gene 3. This vector has been tested on a plasmid containing tissue transglutaminase. All surviving clones analyzed by sequencing were found to contain ORFs, of which 83% were localized to known genes, and at least 80% produced immunologically detectable polypeptides. Use of a specific anti-tTG monoclonal antibody allowed the identification of clones containing the correct epitope. This approach could be applicable to the efficient selection of random ORFs representing the coding potential of whole organisms, and their subsequent downstream use in a number of different systems.
C1 SISSA, Trieste, Italy.
   Univ Trieste, Dipartimento Biol, Trieste, Italy.
   Los Alamos Natl Lab, Div Biol, Los Alamos, NM 87545 USA.
RP Bradbury, ARM (reprint author), SISSA, Trieste, Italy.
EM amb@lanl.gov
NR 75
TC 35
Z9 37
U1 0
U2 2
PU COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
PI COLD SPRING HARBOR
PA 1 BUNGTOWN RD, COLD SPRING HARBOR, NY 11724 USA
SN 1088-9051
J9 GENOME RES
JI Genome Res.
PD MAY
PY 2003
VL 13
IS 5
BP 980
EP 990
DI 10.1101/gr.861503
PG 11
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
   Genetics & Heredity
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
   Genetics & Heredity
GA 674PQ
UT WOS:000182645500024
PM 12727911
ER

PT J
AU Arvidson, RS
   Ertan, IE
   Amonette, JE
   Luttge, A
AF Arvidson, RS
   Ertan, IE
   Amonette, JE
   Luttge, A
TI Variation in calcite dissolution rates: A fundamental problem?
SO GEOCHIMICA ET COSMOCHIMICA ACTA
LA English
DT Article
ID FORCE MICROSCOPY AFM; CARBONATE MINERALS; SURFACE-AREA; REAL-TIME;
   KINETICS; GROWTH; MORPHOLOGY; INTERFACE; SYSTEMS; CRYSTAL
AB A comparison of published calcite dissolution rates measured far from equilibrium at a pH of similar to6 and above shows well over an order of magnitude in variation. Recently published AFM step velocities extend this range further still. In an effort to understand the source of this variation, and to provide additional constraint from a new analytical approach, we have measured dissolution rates by vertical scanning interferometry. In areas of the calcite cleavage surface dominated by etch pits, our measured dissolution rate is 10(-10.95) mol/cm(2)/s (PCO2 10(-3.41) atm, pH 8.82), 5 to similar to100 times slower than published rates derived from bulk powder experiments, although similar to rates derived from AFM step velocities. On cleavage surfaces free of local etch pit development, dissolution is limited by a slow, "global" rate (10(-11.68) mol/cm(2)/s). Although these differences confirm the importance of etch pit (defect) distribution as a controlling mechanism in calcite dissolution, they also suggest that "bulk" calcite dissolution rates observed in powder experiments may derive substantial enhancement from grain boundaries having high step and kink density. We also observed significant rate inhibition by introduction of dissolved manganese. At 2.0 muM Mn, the rate diminished to 10(-12.4) mol/cm(2)/s, and the well formed rhombic etch pits that characterized dissolution in pure solution were absent. These results are in good agreement with the pattern of manganese inhibition in published AFM step velocities, assuming a step density on smooth terraces of similar to9 mum(-1). Copyright (C) 2003 Elsevier Science Ltd.
C1 Rice Univ, Dept Earth Sci, Houston, TX 77251 USA.
   Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Arvidson, RS (reprint author), Rice Univ, Dept Earth Sci, MS-126,POB 1892, Houston, TX 77251 USA.
RI Luttge, Andreas/A-2560-2011; 
OI Luttge, Andreas/0000-0002-5878-4026; Arvidson, Rolf/0000-0002-8997-1262
NR 44
TC 145
Z9 148
U1 7
U2 60
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0016-7037
J9 GEOCHIM COSMOCHIM AC
JI Geochim. Cosmochim. Acta
PD MAY
PY 2003
VL 67
IS 9
BP 1623
EP 1634
DI 10.1016/S0016-7037(02)01177-8
PG 12
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 673PT
UT WOS:000182589900003
ER

PT J
AU Wang, YF
   Bryan, C
   Xu, HF
   Gao, HZ
AF Wang, YF
   Bryan, C
   Xu, HF
   Gao, HZ
TI Nanogeochemistry: Geochemical reactions and mass transfers in nanopores
SO GEOLOGY
LA English
DT Article
DE nanostructured material; nanopore confinement; ion sorption;
   bioavailability; interface chemistry
ID DESORPTION-KINETICS; SURFACE; WATER; ADSORPTION; MECHANISM; SORPTION;
   DIFFUSION; GOETHITE; SORBENTS; BEHAVIOR
AB Nanopores are ubiquitous in porous geologic media and may account for >90% of total mineral surface areas. Surface chemistry, ion sorption, and the related geochemical reactions within nanopores can be significantly modified by a manometer-scale space confinement. As the pore size is reduced to a few nanometers, the difference between surface acidity constants (DeltapK = pK(2) - pK(1)) decreases, giving rise to a higher surface charge density on a nanopore surface than that on an unconfined mineral-water interface. The change in surface acidity constants results in a shift of ion sorption edges and enhances ion sorption on nanopore surfaces. Also; the water activity in a nanopore is greatly reduced, thus increasing the tendency for inner sphere complexation and mineral precipitation. All these effects combine to preferentially enrich trace elements in nanopores, as observed in both field and laboratory studies. The work reported here sheds new light on such fundamental geochemical issues as the irreversibility of ion sorption and desorption, the bioavailability of subsurface contaminants, and the enrichment of trace metals in ore deposits, as well as the kinetics of mineral dissolution and/or precipitation.
C1 Sandia Natl Labs, Carlsbad, NM 88220 USA.
   Univ New Mexico, Dept Earth & Planetary Sci, Albuquerque, NM 87131 USA.
RP Wang, YF (reprint author), Sandia Natl Labs, 4100 Natl Pk Highway, Carlsbad, NM 88220 USA.
EM ywang@sandia.gov; crbryan@sandia.gov; hfxu@unm.edu; hgao@sandia.gov
NR 35
TC 44
Z9 50
U1 4
U2 35
PU GEOLOGICAL SOC AMER, INC
PI BOULDER
PA PO BOX 9140, BOULDER, CO 80301-9140 USA
SN 0091-7613
EI 1943-2682
J9 GEOLOGY
JI Geology
PD MAY
PY 2003
VL 31
IS 5
BP 387
EP 390
DI 10.1130/0091-7613(2003)031<0387:NGRAMT>2.0.CO;2
PG 4
WC Geology
SC Geology
GA 672KF
UT WOS:000182519200001
ER

PT J
AU Newman, GA
   Recher, S
   Tezkan, B
   Neubauer, FM
AF Newman, GA
   Recher, S
   Tezkan, B
   Neubauer, FM
TI 3D inversion of a scalar radio magnetotelluric field data set
SO GEOPHYSICS
LA English
DT Article
ID NONLINEAR CONJUGATE GRADIENTS; GERMANY
AB A radio magnetotelluric (MT) field data set, acquired in scalar mode, over a buried waste site has been successfully analyzed using a 3D MT inversion scheme using nonlinear conjugate gradients. The results of this analysis demonstrate the utility of the scheme where more than 4800 data points collected on multiple measurement profiles have been inverted simultaneously. The resulting image clearly detects the buried waste; when receiver profiles cross pit boundaries, the image maps the lateral extent of the pit. However, the base of the pit is poorly resolved, and depends upon the starting model used to launch the inversion. Hence, critical information on whether contamination is leaching into a resistive gravel bed lining the base of the pit, as well as the deeper geological horizons consisting of brown coal, clay, and tertiary sands, is inconclusive. Nevertheless, by incorporating within the inversion process a priori information of the background media that is host to the waste, sharper images of the base of the pit are obtained, which are in good agreement with borehole data. The 3D analysis applied in this paper overcomes previous limitations in the radio magnetotelluric (RMT) method using 2D data analysis and inversion. With 3D analysis, it is unnecessary to make assumptions regarding geological strike, and near-surface statics can be accommodated in both source polarizations. Our findings also indicate that 2D MT interpretation can overestimate the pit's depth extent. This may lead to the erroneous conclusion that the geological horizons beneath the pit have been contaminated.
C1 Sandia Natl Labs, Livermore, CA 94551 USA.
   Univ Cologne, Inst Geophys & Meteorol, D-5000 Cologne 41, Germany.
RP Sandia Natl Labs, POB 969,MS-9217, Livermore, CA 94551 USA.
EM ganewma@sandia.gov; tezkan@geo.uni-koeln.de
RI Newman, Gregory/G-2813-2015
NR 24
TC 34
Z9 37
U1 4
U2 11
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA 8801 S YALE ST, TULSA, OK 74137 USA
SN 0016-8033
EI 1942-2156
J9 GEOPHYSICS
JI Geophysics
PD MAY-JUN
PY 2003
VL 68
IS 3
BP 791
EP 802
DI 10.1190/1.1581032
PG 12
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 812JQ
UT WOS:000220836200002
ER

PT J
AU Daley, TM
   Gritto, R
   Majer, EL
   West, P
AF Daley, TM
   Gritto, R
   Majer, EL
   West, P
TI Tube-wave suppression in single-well seismic acquisition
SO GEOPHYSICS
LA English
DT Article
ID BOREHOLE; CROSSWELL
AB Single-well seismic imaging is significantly hampered by the presence of borehole tube waves. A tube-wave suppressor has been tested using single-well seismic equipment at the Lost Hills (California) oil field. The suppressor uses a gas-filled bladder kept slightly above borehole fluid pressure. Field tests show a measurable reduction in tube-wave energy as compared to body waves propagating in the surrounding reservoir rock. When using a high-frequency (500-4000 Hz) piezoelectric source, the P-wave-tube-wave amplitude ratio was increased by 33 dB. When using a lower frequency (50-350 Hz) orbital vibrator source, the S-wave-tube-wave amplitude ratio was increased by 21 dB while the P-wave-tube-wave amplitude ratio was increased by 23 dB. These reductions in tube-wave amplitudes significantly improve single-well data quality.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Seismol, Berkeley, CA 94720 USA.
   Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA.
RP Daley, TM (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Ctr Computat Seismol, 1 Cyclotron Rd,MS 90-1116, Berkeley, CA 94720 USA.
EM tmdaley@lbl.gov; rgritto@lbl.gov
RI Daley, Thomas/G-3274-2015
OI Daley, Thomas/0000-0001-9445-0843
NR 20
TC 6
Z9 7
U1 0
U2 1
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA 8801 S YALE ST, TULSA, OK 74137 USA
SN 0016-8033
J9 GEOPHYSICS
JI Geophysics
PD MAY-JUN
PY 2003
VL 68
IS 3
BP 863
EP 869
DI 10.1190/1.1581038
PG 7
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 812JQ
UT WOS:000220836200008
ER

PT J
AU Reister, DB
AF Reister, DB
TI Using measured velocity to estimate gas hydrates concentration
SO GEOPHYSICS
LA English
DT Article
ID MARINE-SEDIMENTS; EQUATION
AB A new method for using measured P-wave and S-wave velocities to estimate gas hydrate concentration uses the Hashin-Shtrikman (HS) lower bound to provide both an upper and lower bound for mixtures of water and hydrate in unconsolidated marine sediments. The method parameterizes the region between the upper and lower bounds by using two upper bounds: HS and Voigt. Well log measurements of resistivity and the Archie equation are used to calculate hydrate concentration, and quadratic functions that relate the hydrate parameters to the hydrate concentration are estimated. For this data set, neither resistivity nor velocity provide a good method for detecting values of hydrate concentration that are less than 20%.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Reister, DB (reprint author), Oak Ridge Natl Lab, Bldg 6010,MS 6355,1 Bethel Valley Rd, Oak Ridge, TN 37831 USA.
EM dbr@ornl.gov
NR 16
TC 6
Z9 7
U1 1
U2 5
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA 8801 S YALE ST, TULSA, OK 74137 USA
SN 0016-8033
J9 GEOPHYSICS
JI Geophysics
PD MAY-JUN
PY 2003
VL 68
IS 3
BP 884
EP 891
DI 10.1190/1.1581040
PG 8
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 812JQ
UT WOS:000220836200010
ER

PT J
AU Weiss, CJ
   Newman, GA
AF Weiss, CJ
   Newman, GA
TI Electromagnetic induction in a generalized 3D anisotropic earth, Part 2:
   The LIN preconditioner
SO GEOPHYSICS
LA English
DT Article
ID FINITE-DIFFERENCES; FREQUENCY; EQUATIONS
AB A practical limitation in the use of generalized 3D forward modeling algorithms for inversion of electromagnetic data is the high computational cost of solving large, ill-conditioned systems of linear equations arising from the discretization of the governing Maxwell equations. To address this problem, a new class of preconditioners has recently been proposed which is based on a Helmholtz decomposition of the electric field in the low induction number (LIN) regime. This paper further develops that idea and introduces a LIN preconditioner which can be applied to problems characterized by a fully generalized anisotropic medium. Included are sample calculations demonstrating a reduction by two orders of magnitude in the number of "quasi-minimal residual" iterates and a speedup by a factor of approximately four in the solution time for one forward calculation. Also included are results previously unobtainable by standard Jacobi preconditioning for simulating multicomponent induction sonde response in a horizontal well within a crossbedded formation.
C1 Sandia Natl Labs, Geophys Technol Dept, Albuquerque, NM 87185 USA.
RP Weiss, CJ (reprint author), Sandia Natl Labs, Geophys Technol Dept, POB 5800,MS 0750, Albuquerque, NM 87185 USA.
EM cjweiss@sandia.gov
RI Newman, Gregory/G-2813-2015
NR 28
TC 22
Z9 25
U1 0
U2 3
PU SOC EXPLORATION GEOPHYSICISTS
PI TULSA
PA 8801 S YALE ST, TULSA, OK 74137 USA
SN 0016-8033
J9 GEOPHYSICS
JI Geophysics
PD MAY-JUN
PY 2003
VL 68
IS 3
BP 922
EP 930
DI 10.1190/1.1581044
PG 9
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 812JQ
UT WOS:000220836200014
ER

PT J
AU Nilson, RH
   Griffiths, SK
   Yang, N
   Walsh, PM
   Allendorf, MD
   Bugeat, B
   Marin, O
   Spear, KE
   Pecoraro, G
AF Nilson, RH
   Griffiths, SK
   Yang, N
   Walsh, PM
   Allendorf, MD
   Bugeat, B
   Marin, O
   Spear, KE
   Pecoraro, G
TI Analytical models for high-temperature corrosion of silica refractories
   in glass-melting furnaces
SO GLASS SCIENCE AND TECHNOLOGY
LA English
DT Review
ID SELF-DIFFUSION; FORMING MELTS; WATER; SUPERSTRUCTURE; LIQUID;
   SOLUBILITY; OXYGEN; BRICK
AB Corrosion of refractory silica brick used to line the crown of many glass-melting furnaces is a serious problem in furnaces using oxygen-fuel rather than air-fuel mixtures. To better understand and to quantify this process analytical models are utilized to evaluate the importance of four potential rate-limiting processes: a) gas-phase transport of NaOH to the crown surface; b) diffusion of sodium-containing reactants through a liquid product layer that forms on the brick face; c) gas-phase diffusion of NaOH into refractory pores. and d) chemical-kinetic limitations at the silica grain surface. Predictions are compared with reported corrosion rates and product compositions previously determined by post-mortem analysis of refractory samples. It is concluded that corrosion occurs largely by reaction and removal of material from the exposed brick face, rather than by transport of reactants into the porous bricks. The observed presence of corrosion products deep within the brick pores is shown to be consistent with capillary suction of high-viscosity liquid products from the hot face into the interior. The results further suggest that mechanisms (b) and (c) do not substantially limit the rate of corrosion, but that mechanisms (a) and (d) may both be important. Comparison of measurements with equilibrium predictions of corrosion-product composition indicate that the corrosion reactions are likely to be close to equilibrium at the conditions and lifetimes typical of full-scale furnaces, but that significant departures from equilibrium may occur in short-duration tests. Although computed corrosion rates based on mass transport through a gas boundary layer are somewhat greater than those observed, the results are very sensitive to the gas-phase concentration of NaOH and to the refractory temperature, both of which contain significant uncertainties.
C1 Sandia Natl Labs, Livermore, CA 94551 USA.
   Amer Air Liquide, Chicago Res Ctr, Countryside, IL USA.
   Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA.
   PPG Ind Inc, Glass Technol Ctr, Pittsburgh, PA USA.
RP Allendorf, MD (reprint author), Sandia Natl Labs, PO B969,MS 9052, Livermore, CA 94551 USA.
NR 60
TC 7
Z9 8
U1 1
U2 4
PU VERLAG DEUTSCHEN GLASTECHNISCHEN
PI FRANKFURT
PA MENDELSSOHNSTR 75-77, D-60325 FRANKFURT, GERMANY
SN 0946-7475
J9 GLASS SCI TECHNOL
JI Glass Sci. Technol.
PD MAY-JUN
PY 2003
VL 76
IS 3
BP 136
EP 151
PG 16
WC Materials Science, Ceramics
SC Materials Science
GA 702MF
UT WOS:000184227100006
ER

PT J
AU Asner, GP
   Scurlock, JMO
   Hicke, JA
AF Asner, GP
   Scurlock, JMO
   Hicke, JA
TI Global synthesis of leaf area index observations: implications for
   ecological and remote sensing studies
SO GLOBAL ECOLOGY AND BIOGEOGRAPHY
LA English
DT Article
DE canopy structure; ecosystem modelling; global ecology; LAI; leaf area
   index; remote sensing
ID PHOTOSYNTHETICALLY ACTIVE RADIATION; FOREST ECOSYSTEM PROCESSES; NET
   PRIMARY PRODUCTION; TERRESTRIAL ECOSYSTEMS; BIOGEOCHEMICAL CYCLES;
   REGIONAL APPLICATIONS; CANOPY ARCHITECTURE; GENERAL-MODEL; AMAZONIA;
   BALANCE
AB Aim We present the first global synthesis of plant canopy leaf area index (LAI) measurements from more than 1000 published estimates representing similar to400 unique field sites. LAI is a key variable for regional and global models of biosphere-atmosphere exchanges of energy, carbon dioxide, water vapour, and other materials.
   Location The location is global, geographically distributed.
   Results Biomes with LAI values well represented in the literature included croplands, forests and plantations. Biomes not well represented were deserts, shrublands, tundra and wetlands. Nearly 40% of the records in the database were published in the past 10 years (1991-2000), with a further 20% collected between 1981 and 1990. Mean (+/-SD) LAI, distributed between 15 biome classes, ranged from 1.3+/-0.9 for deserts to 8.7+/-4.3 for tree plantations, with temperate evergreen forests (needleleaf and broadleaf) displaying the highest average LAI (5.1-6.7) among the natural terrestrial vegetation classes. Following a statistical outlier analysis, the global mean (+/-SD) LAI decreased from 5.2 (4.1) to 4.5 (2.5), with a maximum LAI of 18. Biomes with the highest LAI values were plantations > temperate evergreen forests > wetlands. Those with the lowest LAI values were deserts < grasslands < tundra. Mean LAI values for all biomes did not differ statistically by the methodology employed. Direct and indirect measurement approaches produced similar LAI results. Mean LAI values for all biomes combined decreased significantly in the 1990s, a period of substantially more studies and improved methodologies.
   Main conclusions Applications of the LAI database span a wide range of ecological, biogeochemical, physical, and climate research areas. The data provide input to terrestrial ecosystem and land-surface models, for evaluation of global remote sensing products, for comparisons to field studies, and other applications. Example uses of the database for global plant productivity, fractional energy absorption, and remote sensing studies are highlighted.
C1 Carnegie Inst Washington, Dept Global Ecol, Stanford, CA 94305 USA.
   Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
RP Asner, GP (reprint author), Carnegie Inst Washington, Dept Global Ecol, Stanford, CA 94305 USA.
RI Hicke, Jeff/M-9677-2013; Asner, Gregory/G-9268-2013
OI Asner, Gregory/0000-0001-7893-6421
NR 48
TC 274
Z9 300
U1 11
U2 99
PU BLACKWELL PUBLISHING LTD
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DG, OXON, ENGLAND
SN 0960-7447
J9 GLOBAL ECOL BIOGEOGR
JI Glob. Ecol. Biogeogr.
PD MAY
PY 2003
VL 12
IS 3
BP 191
EP 205
DI 10.1046/j.1466-822X.2003.00026.x
PG 15
WC Ecology; Geography, Physical
SC Environmental Sciences & Ecology; Physical Geography
GA 666NV
UT WOS:000182184100003
ER

PT J
AU Kathren, RL
   Lynch, TP
   Traub, RJ
AF Kathren, RL
   Lynch, TP
   Traub, RJ
TI Six-year follow-up of an acute Am-241 inhalation intake
SO HEALTH PHYSICS
LA English
DT Article
DE Am-241; biokinetics; inhalation; lungs; human
ID TRANS-URANIUM REGISTRY; UNITED-STATES TRANSURANIUM; BIOKINETIC MODELS;
   SPECIAL ISSUE; WHOLE-BODY; AMERICIUM; ACTINIDES
AB A 38-y-old Caucasian male who suffered an acute accidental inhalation intake of 6.3 kBq of Am-241 was monitored over 2,135 d using periodic in vivo measurements of the activity in the lungs, liver, and skeleton. Lung clearance was described by a two-compartment exponential model with half-times of 110 d and 10,000 d. The observed uptake of Am-241 in the liver (72 Bq) and skeleton (170 Bq) was significantly greater than predicted by the ICRP models for liver (5 Bq) and skeleton (8 Bq). The half-time in the liver was approximately 850 d. Estimates of skeletal activity based on head, wrist, and knee counts generally agreed within 25% over the course of the monitoring period. The half-time in the skeleton was approximately 20,000 d.
C1 Pacific NW Natl Lab, Dept Pharmaceut Sci, Richland, WA 99352 USA.
   Washington State Univ, Dept Pharmaceut Sci, Richland, WA 99352 USA.
RP Lynch, TP (reprint author), Pacific NW Natl Lab, Dept Pharmaceut Sci, POB 999,MS B1-60, Richland, WA 99352 USA.
EM tim.lynch@pnl.gov
RI WSU, USTUR/I-1056-2013
NR 20
TC 11
Z9 11
U1 1
U2 5
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAY
PY 2003
VL 84
IS 5
BP 576
EP 581
DI 10.1097/00004032-200305000-00002
PG 6
WC Environmental Sciences; Public, Environmental & Occupational Health;
   Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
   Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
   Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
   Medical Imaging
GA 668AZ
UT WOS:000182269300002
PM 12747476
ER

PT J
AU Barat, K
AF Barat, K
TI Laser accidents: Occurrence and response
SO HEALTH PHYSICS
LA English
DT Article
DE operational topic; lasers; accident; handling; operational safety
AB The goal of the laser safety officer and any laser safety program is to prevent a laser accident from occurring, in particular, one that causes an injury to a person's eyes. Most laser safety courses "in-house commercial" discuss laser accidents, causes, and types of injury. Many do not address appropriate actions to be taken if such an accident occurs. This article reviews a sampling of laser accidents that have occurred and provides a quick overview of the appropriate steps to take when a laser accident occurs.
C1 Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Barat, K (reprint author), Lawrence Berkeley Natl Lab, MS 75B,1 Cyclotron Rd, Berkeley, CA 94720 USA.
EM barat1@LLNL.gov
NR 0
TC 5
Z9 5
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAY
PY 2003
VL 84
IS 5
SU S
BP S93
EP S95
DI 10.1097/00004032-200305001-00013
PG 3
WC Environmental Sciences; Public, Environmental & Occupational Health;
   Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
   Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
   Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
   Medical Imaging
GA 668NF
UT WOS:000182299500010
PM 12751200
ER

PT J
AU Berger, ME
   Jones, OW
   Ricks, RC
   Garrett, S
AF Berger, ME
   Jones, OW
   Ricks, RC
   Garrett, S
TI Decontaminating the nasal passages
SO HEALTH PHYSICS
LA English
DT Article
ID MUCOCILIARY CLEARANCE; SALINE SOLUTION; IRRIGATION; SURGERY
AB Nasal decontamination may be indicated when the anterior nasal passages are contaminated with highly radioactive material or radioactive material with either irritating or toxic properties. Nasal irrigation (wash, rinse, douche, lavage) is an established technique used for other conditions and can be applied in these cases. This paper discusses the rationale and use of nasal irrigation and how to perform the technique.
C1 Oak Ridge Associated Univ, Radiat Emergency Assistance Ctr, Oak Ridge, TN 37831 USA.
RP Berger, ME (reprint author), Oak Ridge Associated Univ, Radiat Emergency Assistance Ctr, Training Site REAC-TS,POB 117, Oak Ridge, TN 37831 USA.
EM mebalpha@aol.com
NR 16
TC 4
Z9 4
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAY
PY 2003
VL 84
IS 5
SU S
BP S80
EP S82
DI 10.1097/00004032-200305001-00010
PG 3
WC Environmental Sciences; Public, Environmental & Occupational Health;
   Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
   Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
   Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
   Medical Imaging
GA 668NF
UT WOS:000182299500007
PM 12751197
ER

PT J
AU Clark, JM
AF Clark, JM
TI Radiation Protection Program for declared pregnant workers at Los Alamos
   National Laboratory
SO HEALTH PHYSICS
LA English
DT Article
DE operational topic; occupational safety; pregnancy; radiation protection
AB This article presents an overview of Los Alamos National Laboratory's (LANL) Fetal Radiation Protection Program (FRP) that satisfies the requirements set forth in 10 CFR 835 and LANL's Radiation Protection Program. At LANL, the FRP is one of three components of the larger Reproductive Health Hazards Program, which also includes Occupational Medicine and Industrial Hygiene. Although pregnant employees usually enter the program through Occupational Medicine, coordination with all three groups is achieved. The most important part of the FRP Program is performance of the workplace evaluation at the pregnant worker's workplace. At the meeting between the health physicist and the pregnant employee, the following topics are reviewed: risks to the embryo/fetus of working around sources of ionizing radiation; LANL's requirements and 10 CFR 835 regulations; her dose history; basic methods of radiation protection; and a detailed discussion of the work assignments/ locations that enables the health physicist to complete an evaluation of the level of radiological hazards. Interface with her supervisor and the Operational Health Physics health physicist in charge of her work areas is essential in acquiring additional information. All of these data, including the radiation dose history and recommendations for possible work modifications or reassignment, are summarized in the workplace evaluation memo, which becomes part of the pregnant employee's medical file. Using input from LANL's legal staff, the author developed a document titled "Guidance to the Supervisors Regarding Fetal Radiation Protection and Reproductive Health Hazards," which instructs supervisors regarding the requirements and regulations, contact names for workplace evaluations, and, very importantly, how to avoid discriminatory behavior against pregnant employees.
C1 Los Alamos Natl Lab, Hlth Safety & Radiat Protect Div, Los Alamos, NM 87545 USA.
RP Clark, JM (reprint author), Los Alamos Natl Lab, Hlth Safety & Radiat Protect Div, MS K-483, Los Alamos, NM 87545 USA.
EM jmclark@lanl.gov
NR 6
TC 2
Z9 2
U1 1
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAY
PY 2003
VL 84
IS 5
SU S
BP S66
EP S70
DI 10.1097/00004032-200305001-00007
PG 5
WC Environmental Sciences; Public, Environmental & Occupational Health;
   Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
   Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
   Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
   Medical Imaging
GA 668NF
UT WOS:000182299500004
PM 12751194
ER

PT J
AU Murphy, JE
   Vakhtin, AB
   Leone, SR
AF Murphy, JE
   Vakhtin, AB
   Leone, SR
TI Laboratory kinetics of C2H radical reactions with ethane, propane, and
   n-butane at T=96-296 K: implications for Titan
SO ICARUS
LA English
DT Article
DE prebiotic chemistry; satellites, atmospheres; satellites of Saturn;
   Titan
ID LAVAL NOZZLE APPARATUS; TEMPERATURE RATE COEFFICIENTS; 359 K;
   ATMOSPHERE; O-2; CH4; SPECTROSCOPY; PROPENE; H-2
AB The kinetics of the reactions of C2H radical with ethane (k(1)), propane (k(2)), and n-butane (k(3)) are studied over the temperature range of T = 96-296 K with a pulsed Laval nozzle apparatus that utilizes a pulsed laser photolysis-chemiluminescence technique. The C2H decay profiles in the presence of both the alkane reactant and O-2 are monitored by the CH(A(2)Delta) chemiluminescence tracer method. The results, together with available literature data, yield the following Arrhenius expressions: k(1)(7) = (0.51 +/- 0.06) X 10(-10) exp[(-76 +/- 30)K/T] cm(3) molecule(-1) s(-1) (T = 96-800 K), k(2)(T) = (0.98 +/- 0.32) X 10(-10) exp[(-71 +/- 60)K/T] cm(3) molecule(-1) s(-1) (T = 96-361 K), and k(3)(T) = (1.23 +/- 0.26) X 10(-10) cm(3) molecule(-1) s(-1) (T = 96-297 K). At T = 296 K, k(1) is measured as a function of total pressure and has little or no pressure dependence. The results from this work support a direct hydrogen abstraction mechanism for the title reactions. Implications to the atmospheric chemistry of Titan are discussed. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
   Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
   Univ Colorado, Natl Inst Stand & Technol, JILA, Boulder, CO 80309 USA.
RP Leone, SR (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
NR 25
TC 26
Z9 26
U1 1
U2 6
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0019-1035
J9 ICARUS
JI Icarus
PD MAY
PY 2003
VL 163
IS 1
BP 175
EP 181
DI 10.1016/S0019-1035(03)00071-X
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 681VN
UT WOS:000183056400013
ER

PT J
AU Gorton, I
   Liu, A
AF Gorton, I
   Liu, A
TI Evaluating the performance of EJB components
SO IEEE INTERNET COMPUTING
LA English
DT Article
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Pacific NW Natl Lab, Richland, WA 99352 USA.
EM ian.gorton@pnl.gov; annali@microsoft.com
RI Gorton, Ian/A-8247-2009
NR 6
TC 24
Z9 27
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 1089-7801
EI 1941-0131
J9 IEEE INTERNET COMPUT
JI IEEE Internet Comput.
PD MAY-JUN
PY 2003
VL 7
IS 3
BP 18
EP 23
DI 10.1109/MIC.2003.1200296
PG 6
WC Computer Science, Software Engineering
SC Computer Science
GA 677ME
UT WOS:000182811500006
ER

PT J
AU Young, EW
   Choquette, KD
   Seurin, JFP
   Chuang, SL
   Geib, KM
   Allerman, AA
AF Young, EW
   Choquette, KD
   Seurin, JFP
   Chuang, SL
   Geib, KM
   Allerman, AA
TI Comparison of wavelength splitting for selectively oxidized, ion
   implanted, and hybrid vertical-cavity surface-emitting lasers
SO IEEE JOURNAL OF QUANTUM ELECTRONICS
LA English
DT Article
DE laser modes; vertical-cavity surface-emitting laser (VCSEL)
ID TRANSVERSE-MODE; PERFORMANCE
AB The wavelength splitting between the LP01 and LP11 modes of selectively oxidized, ion implanted, and hybrid ion implanted/selectively oxidized. vertical-cavity surface-emitting lasers is studied by experiment and theory. Measured splittings at threshold show marked differences between the different laser structures due to the effects of index guiding and thermal lensing. Theoretical results were obtained using a vector optical mode solver and show good agreement with experimental results. The hybrid lasers exhibited behavior intermediate between the ion implanted and selectively oxidized lasers and could be optimized for high power single transverse mode emission.
C1 Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA.
   Printeton Optron Inc, Mercerville, NJ 08619 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Young, EW (reprint author), Univ Illinois, Dept Elect & Comp Engn, 1406 W Green St, Urbana, IL 61801 USA.
NR 13
TC 9
Z9 9
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 0018-9197
J9 IEEE J QUANTUM ELECT
JI IEEE J. Quantum Electron.
PD MAY
PY 2003
VL 39
IS 5
BP 634
EP 639
DI 10.1109/JQE.2003.810264
PG 6
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 671ZM
UT WOS:000182495700002
ER

PT J
AU Hader, J
   Moloney, JV
   Koch, SW
   Chow, WW
AF Hader, J
   Moloney, JV
   Koch, SW
   Chow, WW
TI Microscopic modeling of gain and luminescence in semiconductors
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE absorption; gain; gain measurement; modeling; photo luminescence (PL);
   quantum-well lasers
ID QUANTUM-WELL LASERS; LINEWIDTH ENHANCEMENT FACTOR; SPONTANEOUS EMISSION;
   FILAMENTATION; PREDICTION; SPECTRA
AB The capabilities of a fully microscopic approach for the calculation of optical material properties of semiconductor lasers are reviewed. Several comparisons between the results of these calculations and measured data are used to demonstrate that the approach yields excellent quantitative agreement with the experiment. It is outlined how this approach allows one to predict the optical properties of devices under high-power operating conditions based only on low-intensity photo luminescence (PL) spectra. Examples for the gain-, absorption-, PL- and linewidth enhancement factor-spectra in single and multiple quantum-well structures, superlattices, Type 11 quantum wells and quantum dots, and for various material systems are discussed.
C1 Univ Arizona, Arizona Ctr Math Sci, Tucson, AZ 85721 USA.
   Univ Arizona, Ctr Opt Sci, Tucson, AZ 85721 USA.
   Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany.
   Univ Marburg, Wissensch Zentrum Mat Wissensch, D-35032 Marburg, Germany.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Hader, J (reprint author), Univ Arizona, Arizona Ctr Math Sci, Tucson, AZ 85721 USA.
EM jhader@acms.arizona.edu
NR 25
TC 38
Z9 38
U1 0
U2 9
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 MAY-JUN
PY 2003
VL 9
IS 3
BP 688
EP 697
DI 10.1109/JSTQE.2003.818342
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 750LW
UT WOS:000186993000002
ER

PT J
AU Beach, RJ
   Feit, MD
   Mitchell, SC
   Cutter, KP
   Payne, SA
   Mead, RW
   Hayden, JS
   Krashkevich, D
   Alunni, DA
AF Beach, RJ
   Feit, MD
   Mitchell, SC
   Cutter, KP
   Payne, SA
   Mead, RW
   Hayden, JS
   Krashkevich, D
   Alunni, DA
TI Phase-locked antiguided multiple-core ribbon fiber
SO IEEE PHOTONICS TECHNOLOGY LETTERS
LA English
DT Article
DE clad pumping; fiber lasers; multicore fiber; phase locking; waveguides
ID BEAM QUALITY; PROPAGATION; LASER
AB We report on the first experimental demonstration of a scalable fiber laser approach based on phase-locking multiple gain cores in an antiguided structure. A novel fabrication technology is used, with soft glass components to construct, the multiple core fiber used in our experiments. The waveguide region is rectangular in shape and comprised of a periodic sequence of gain and no-gain segments having nearly uniform refractive index. The rectangular waveguide is itself embedded in a lower refractive index cladding region. Experimental results confirm that our five-core Nd-doped glass prototype structure runs predominately in two spatial antiguided modes as predicted by our modeling.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
   Collimated Holes Inc, Campbell, CA 95008 USA.
   Schott Glass Technol Inc, Duryea, PA 18642 USA.
RP Beach, RJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RI Feit, Michael/A-4480-2009
NR 12
TC 11
Z9 11
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA
SN 1041-1135
J9 IEEE PHOTONIC TECH L
JI IEEE Photonics Technol. Lett.
PD MAY
PY 2003
VL 15
IS 5
BP 670
EP 672
DI 10.1109/LPT.2003.809943
PG 3
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 675CE
UT WOS:000182674800014
ER

PT J
AU Warne, LK
   Lee, KSH
   Hudson, HG
   Johnson, WA
   Jorgenson, RE
   Stronach, SL
AF Warne, LK
   Lee, KSH
   Hudson, HG
   Johnson, WA
   Jorgenson, RE
   Stronach, SL
TI Statistical properties of linear antenna impedance in an electrically
   large cavity
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE antenna measurements; antenna theory; cavities; cavity resonators;
   chaos; impedance; resonance; statistics
ID REVERBERATION CHAMBER; DOMAIN
AB This paper presents models and measurements of linear antenna input impedance in resonant cavities at high frequencies. Results are presented for both the case where the cavity is undermoded (modes with separate and discrete spectra) as well as the overmoded case (modes with overlapping spectra). A modal series is constructed and analyzed to determine the impedance statistical distribution. Both electrically small as well as electrically longer resonant and wall mounted antennas are analyzed. Measurements in a large mode stirred chamber cavity are compared with calculations. Finally a method based on power arguments is given, yielding simple formulas for the impedance distribution.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
   ITT Ind AES, Los Angeles, CA 90024 USA.
RP Warne, LK (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 24
TC 29
Z9 33
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 0018-926X
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD MAY
PY 2003
VL 51
IS 5
BP 978
EP 992
DI 10.1109/TAP.2003.811483
PG 15
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 697NG
UT WOS:000183949000007
ER

PT J
AU Hively, LM
   Protopopescu, VA
AF Hively, LM
   Protopopescu, VA
TI Channel-consistent forewarning of epileptic events from scalp EEG
SO IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING
LA English
DT Article
DE dynamical systems; epileptic seizure forewarning; nonlinear analysis;
   phase-space dissimilarity measures
ID DYNAMICAL CHANGE; TIME-SERIES; SEIZURES; PREDICTION; CHAOS
AB Phase-space dissimilarity measures (PSDM) have been recently proposed to provide forewarning of impending epileptic events from scalp electroencephalographic (EEG) for eventual ambulatory settings. Despite high noise in scalp EEG, PSDM yield consistently superior performance over traditional nonlinear indicators, such as Kolmogorov entropy Lyapunov exponents, and correlation dimension. However, blind Application of PSDM may result in channel inconsistency, Whereby multiple datasets from the same patient yield conflicting forewarning indications in the same channel. This paper presents a first attempt to solve this problem.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Hively, LM (reprint author), Oak Ridge Natl Lab, POB 2008,Bldg 6011,MS-6415, Oak Ridge, TN 37831 USA.
NR 24
TC 28
Z9 28
U1 0
U2 0
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA
SN 0018-9294
J9 IEEE T BIO-MED ENG
JI IEEE Trans. Biomed. Eng.
PD MAY
PY 2003
VL 50
IS 5
BP 584
EP 593
DI 10.1109/TBME.2003.810693
PG 10
WC Engineering, Biomedical
SC Engineering
GA 678ML
UT WOS:000182870900006
PM 12769434
ER

PT J
AU Hamid, MS
   Harvey, NR
   Marshall, S
AF Hamid, MS
   Harvey, NR
   Marshall, S
TI Genetic algorithm optimization of multidimensional grayscale soft
   morphological filters with applications in film archive restoration
SO IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
LA English
DT Article
DE film restoration; filter optimization; genetic algorithms; soft
   morphology
ID MEDIAN FILTERS; MISSING DATA; IMAGE
AB Automatic restoration of old film archives has become of increasing interest in the last few years with the rise of consumer digital video applications and the need to supply more programming material of an acceptable quality in a multimedia context. A technique is described for the optimization of multidimensional grayscale soft morphological filters for applications in automatic film archive restoration, specific to the problem of film dirt removal. The optimization is undertaken with respect to a criterion based on mean absolute error and is performed using a genetic algorithm. Experiments have shown that the filter found using this technique has excellent performance in attenuating/removing film dirt from image sequences and has little, if any, effect on the image detail. The results of applying such a filter to a real image sequence were analyzed and compared to those obtained by restoring the same image sequence using a global filtering approach (LUM filter) and a spatio-temporal local filtering approach (ML3Dex filter with noise detection). From a film dirt removal point of view, the optimized soft morphological filter showed improved results compared to the LUM filter and comparable results with respect to the ML3Dex filter with noise detection. Also, the optimized filter accurately restored all fast-moving objects present in the sequence, without the need for motion compensation, whereas the other two methods failed to do this. The proposed method proved to be a simple, fast, and cheap approach for the automatic restoration of old film archives.
C1 Univ Strathclyde, Glasgow G1 1XQ, Lanark, Scotland.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Hamid, MS (reprint author), Univ Strathclyde, Glasgow G1 1XQ, Lanark, Scotland.
NR 36
TC 35
Z9 37
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 1051-8215
J9 IEEE T CIRC SYST VID
JI IEEE Trans. Circuits Syst. Video Technol.
PD MAY
PY 2003
VL 13
IS 5
BP 406
EP 416
DI 10.1109/TCSVT.2003.811608
PG 11
WC Engineering, Electrical & Electronic
SC Engineering
GA 686WB
UT WOS:000183343000005
ER

PT J
AU Jordan, GB
   Streit, LD
   Binkley, JS
AF Jordan, GB
   Streit, LD
   Binkley, JS
TI Assessing and improving the effectiveness of National Research
   Laboratories
SO IEEE TRANSACTIONS ON ENGINEERING MANAGEMENT
LA English
DT Article
DE assessment; Competing Values; employee attitude survey; improvement
   process; National Laboratories; organizational effectiveness; research
   environment; US Department of Energy (DOE)
ID ORGANIZATIONS
AB This paper presents initial work at two U.S. Department of Energy (DOE) national laboratories to develop a process for assessing and improving the effectiveness of research organizations. The approach to assessment reflects the complexity of the research environment and provides information that allows the research organization to define a few key actions for improvement. The work described here focuses on identifying attributes of DOE laboratory research environments that are most important for fostering excellent research. Thirty-six attributes in four areas were identified by scientists and engineers at these institutions and are presented using the Competing Values model for discussing organizational effectiveness. These attributes served as the basis for the development of a self-assessment survey and improvement process designed specifically for research environments. Assessments involving more than 1000 scientists and engineers in four organizations have shown that this approach provides a good basis for understanding and improvement.
C1 Sandia Natl Labs, Washington, DC 20024 USA.
   McNeil Technol Inc, Springfield, VA 22150 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Jordan, GB (reprint author), Sandia Natl Labs, Washington, DC 20024 USA.
NR 10
TC 8
Z9 8
U1 1
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855 USA
SN 0018-9391
J9 IEEE T ENG MANAGE
JI IEEE Trans. Eng. Manage.
PD MAY
PY 2003
VL 50
IS 2
BP 228
EP 235
DI 10.1109/TEM.2003.810820
PG 8
WC Business; Engineering, Industrial; Management
SC Business & Economics; Engineering
GA 686VE
UT WOS:000183341000010
ER

PT J
AU Strassner, B
   Chang, K
AF Strassner, B
   Chang, K
TI 5.8-GHz circularly polarized dual-rhombic-loop traveling-wave rectifying
   antenna for low power-density wireless power transmission applications
SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
LA English
DT Article
DE circularly polarized (CP) antennas; coplanar stripline (CPS) filter;
   microwave power transmission; rectifying antenna; wireless power
   transmission
ID RECTENNA; EFFICIENCY; ARRAY
AB This paper reports a right-hand circularly polarized (RHCP) high-efficiency traveling-wave rectifying antenna (rectenna) designed in a coplanar stripline (CPS) circuit that is etched on a Rogers Duroid 5870 substrate with epsilon(r) = 2.2 and 20-mil thickness. A 4 x 1 traveling-wave array of RHCP high-gain dual-rhombic-loop antennas (DRLAs) and a reflecting plane are used to provide highly efficient RF-to-dc conversion in the presence of lower power densities regardless of the rectenna's broadside orientation. The DRLA array has a circularly polarized antenna gain of 14.6 dB with a 2: 1 voltage standing-wave ratio bandwidth of 17% and a better than 3-dB axial ratio fractional bandwidth of 7% centered about 5.8 GHz. The rectenna achieves 82% RF-to-dc conversion efficiency at 5.8 GHz and uses a low-profile CPS band-reject filter to suppress the re-radiated second harmonic by over 14 dB. The rectenna operating at low power density should have many applications when the transmitting power is low and/or the transmission distance is long.
C1 Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA.
RP Strassner, B (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 14
TC 34
Z9 35
U1 1
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA
SN 0018-9480
J9 IEEE T MICROW THEORY
JI IEEE Trans. Microw. Theory Tech.
PD MAY
PY 2003
VL 51
IS 5
BP 1548
EP 1553
DI 10.1109/TMTT.2003.810137
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA 672LF
UT WOS:000182521500017
ER

PT J
AU Cannon, M
   Fugate, M
   Hush, DR
   Scovel, C
AF Cannon, M
   Fugate, M
   Hush, DR
   Scovel, C
TI Selecting a restoration technique to minimize OCR error
SO IEEE TRANSACTIONS ON NEURAL NETWORKS
LA English
DT Article
DE empirical error minimization; estimation error bounds; multiclass
   classification; optical character recognition (OCR); perception
   algorithm; pocket algorithm
AB This paper introduces a, learning problem related to the of converting printed documents to ASCII text files.. the goal of the learning procedure is to produce a function that maps documents to restoration techniques in such away that on average the restored documents have, minimum optical character recognition-error. We derive a general form. for the optimal function and Use it to, motivate the, development of a nonparametric method based on nearest neighbors. We also develop a direct method, of solution based on empirical error minimization for which we prove a finite sample bound, on. estimation error that. is independent of distribution. We show that this empirical error minimization problem is, an extension of the empirical optimization problem for traditional M-class classification with general loss function and prove computational hardness for! this problem. We then derive a simple iterative algorithm called generalized multiclass. ratchet (GMR) and, prove that it produces, an optimal function asymptotically (with probability, 1). To obtain the GMR algorithm we introduce a new data map, that extends Kesler's construction for the multiclass problem (see, e.g., [5p, 266]) and then apply an algorithm called Ratchet to this mapped data, Where Ratchet is a,modification of the Pocket algorithm [6]. Finally; we apply these methods to, a collection of documents and report on the experimental results.
C1 Los Alamos Natl Lab, Comp Res & Applicat Grp, Los Alamos, NM 87544 USA.
RP Cannon, M (reprint author), Los Alamos Natl Lab, Comp Res & Applicat Grp, POB 1663, Los Alamos, NM 87544 USA.
NR 14
TC 1
Z9 1
U1 0
U2 0
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017-2394 USA
SN 1045-9227
J9 IEEE T NEURAL NETWOR
JI IEEE Trans. Neural Netw.
PD MAY
PY 2003
VL 14
IS 3
BP 478
EP 490
DI 10.1109/TNN.2003.811711
PG 13
WC Computer Science, Artificial Intelligence; Computer Science, Hardware &
   Architecture; Computer Science, Theory & Methods; Engineering,
   Electrical & Electronic
SC Computer Science; Engineering
GA 680LU
UT WOS:000182980300002
PM 18238033
ER

PT J
AU Allen, RA
   Ende, BAA
   Cresswell, MW
   Murabito, CE
   Headley, TJ
   Guthrie, WF
   Linholm, LW
   Ellenwood, CH
   Bogardus, EH
AF Allen, RA
   Ende, BAA
   Cresswell, MW
   Murabito, CE
   Headley, TJ
   Guthrie, WF
   Linholm, LW
   Ellenwood, CH
   Bogardus, EH
TI Test structures for referencing electrical linewidth measure ments to
   silicort lattice parameters using HRTEM
SO IEEE TRANSACTIONS ON SEMICONDUCTOR MANUFACTURING
LA English
DT Article; Proceedings Paper
CT International Conference on Microelectronic Test Structures (ICMTS)
CY APR 08-11, 2002
CL CORK, IRELAND
DE critical dimension (CD); electrical test structures; high-resolution
   transmission electron microscopy (HRTEM); linewidth metrology; reference
   materials
ID METROLOGY; FEATURES
AB A technique has, been developed to determine the linewidths of the features of a prototype reference material for the calibration of critical-dimension (CD) metrology instruments. The reference features are fabricated in mono-crystalline-silicon with the sidewalls aligned to the (111) lattice planes. A two-step measurement procedure is used to determine the CDs. The primary measurement is via lattice-plane counting of selected samples using high-resolution transmission electron microscopy (HRTEM); the transfer calibration is via electrical CD (ECD) test-structure metrology. Samples of these prototype reference materials were measured and provided, as the National Institute of Standards and Technology (NIST) Reference Material RM8110, to International SEMATECH for evaluation by its member companies. In this paper, we will describe the measurement procedure and show how the combined uncertainty of less than 15 nm was derived. Additionally, we demonstrate a technique to automate the analysis of the phase-contrast images in order to both minimize the cost and reduce the uncertainty of the calibration of the standards.
C1 Natl Inst Stand & Technol, Div Semicond Elect, Gaithersburg, MD 20899 USA.
   Natl Inst Stand & Technol, Div Semicond Elect, Gaithersburg, MD 20899 USA.
   Natl Inst Stand & Technol, Math & Computat Sci Div, Gaithersburg, MD 20899 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
   Natl Inst Stand & Technol, Stat Engn Div, Gaithersburg, MD 20899 USA.
   Int SEMATECH, Austin, TX 78741 USA.
RP Allen, RA (reprint author), Natl Inst Stand & Technol, Div Semicond Elect, Gaithersburg, MD 20899 USA.
NR 15
TC 21
Z9 22
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 0894-6507
J9 IEEE T SEMICONDUCT M
JI IEEE Trans. Semicond. Manuf.
PD MAY
PY 2003
VL 16
IS 2
BP 239
EP 248
DI 10.1109/TSM.2003.812163
PG 10
WC Engineering, Manufacturing; Engineering, Electrical & Electronic;
   Physics, Applied; Physics, Condensed Matter
SC Engineering; Physics
GA 676KA
UT WOS:000182749500022
ER

PT J
AU Slepenkin, A
   Motin, V
   de la Maza, LM
   Peterson, EM
AF Slepenkin, A
   Motin, V
   de la Maza, LM
   Peterson, EM
TI Temporal expression of type III secretion genes of Chlamydia pneumoniae
SO INFECTION AND IMMUNITY
LA English
DT Article
ID PERSISTENT INFECTION; PROTEIN SECRETION; PATHOGENICITY ISLANDS; HEP-2
   CELLS; TRACHOMATIS; SYSTEMS; BRONCHITIS; RISK
AB Chlamydia pneumoniae has been shown to possess at least 13 genes that are homologous with other known type III secretion (TTS) systems. Upon infection of HEp-2 cells with C. pneumoniae, the expression of these genes was followed by reverse transcriptase PCR throughout the developmental cycle of this obligate intracellular pathogen. In addition, expression was analyzed when C. pneumoniae was grown in the presence of human gamma interferon (IFN-gamma). The groEL-1, ompA, and omcB genes were used as markers for the early, middle, and late stages of the developmental cycle, respectively, and the inhibition of expression of the fstK gene was used as a marker for the effect of IFN-gamma on the maturation of C. pneumoniae. In the absence of IFN-gamma, the TTS genes were expressed as follows: early stage (1.5 to 8 h), yscC, yscS, yscL, yscJ and lcrH-2; middle stage (by 12 to 18 h), lcrD, yscN, and yscR; and late stage (by 24 h), lcrE, sycE, lcrH-1, and yscT. Of the genes expressed early, the lcrH-2 gene was detected the earliest, at 1.5 h. Expression of the yscU gene was not detected at any of the time points examined. Under the influence of IFN-gamma, the cluster of TTS genes that were normally not expressed until the middle to late stages of the developmental cycle, namely, lcrD, IcrE, and sycE, as well as lcrH-1, were down-regulated, and expression could not be detected up to 48 h. In contrast, the expression of the other TTS genes appeared to be unchanged in the presence of IFN-gamma. The lcrH-1 and lcrH-2 genes differed from one another in both their temporal expression and response to IFN-gamma. In other TTS systems, these genes code for proteins that function in regulation of effector protein synthesis as well as serve as chaperones for proteins that provide for the translocation of the effector proteins into the host cell. In summary, the expression pattern of the TTS genes of C. pneumoniae examined suggests that they are temporally regulated throughout the developmental cycle. Furthermore, paralleling the inhibition of the maturation of the reticulate body to the elementary body, TTS genes expressed in the later stages of the cycle appear to be down-regulated when the organism is grown in the presence of IFN-gamma.
C1 Univ Calif Irvine, Dept Pathol, Irvine, CA 92697 USA.
   Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Peterson, EM (reprint author), Univ Calif Irvine, Dept Pathol, Med Sci Bldg,Room D-440, Irvine, CA 92697 USA.
RI Motin, Vladimir/O-1535-2013
NR 37
TC 50
Z9 51
U1 1
U2 8
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0019-9567
J9 INFECT IMMUN
JI Infect. Immun.
PD MAY
PY 2003
VL 71
IS 5
BP 2555
EP 2562
DI 10.1128/IAI.71.5.2555-2562.2003
PG 8
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 672BT
UT WOS:000182501500031
PM 12704128
ER

PT J
AU Thrall, KD
   Schwartz, RE
   Weitz, KK
   Soelberg, JJ
   Foureman, GL
   Prah, JD
   Timchalk, C
AF Thrall, KD
   Schwartz, RE
   Weitz, KK
   Soelberg, JJ
   Foureman, GL
   Prah, JD
   Timchalk, C
TI A real-time method to evaluate the nasal deposition and clearance of
   acetone in the human volunteer
SO INHALATION TOXICOLOGY
LA English
DT Article
ID COMPUTATIONAL FLUID-DYNAMICS; AIR-FLOW; F344 RAT; VAPORS; EXPOSURE;
   METABOLISM; ACETATE; AIRWAYS; MODEL
AB Nasal dosimetry models have become increasingly quantitative as insights into tissue deposition/clearance and computational fluid dynamics have become available. Validation of these models requires sufficient experimental data. However, investigations into respiratory deposition, particularly in human volunteers, have been historically limited due to methodological limitations. To overcome this, a method for evaluating the nasal wash-in, wash-out phenomena of a highly water-soluble compound in human volunteers was developed and characterized. This methodology was assessed using controlled human inhalation exposures to uniformly labeled [C-13]acetone at approximately 1 ppm concentration for 30 min under different breathing maneuvers (inhale nose/exhale nose; inhale nose/exhale mouth; inhale mouth/exhale nose). A small-diameter air-sampling probe inserted in the nasopharyngeal cavity of the volunteer was connected directly to an ion-trap mass spectrometer capable of sampling every 0.8 s. A second ion-trap mass spectrometer simultaneously sampled from the volunteer's exhaled breath stream via a breath-inlet device interface. Together, the two mass spectrometers provided real-time appraisal of the [C-13]acetone concentrations in the nasopharyngeal region and in the exhaled breath stream before, during, and after the different breathing maneuvers. The breathing cycle (depth and frequency) and heart rate were concurrently monitored throughout the exposure using a heart-rate monitor and a human plethysmograph to differentiate inhalation and exhalation. Graphical overlay of the plethysmography results with the mass spectrometer measurements show clear quantifiable differences in [C-13]acetone levels at the nasal probe as a function of breathing maneuvers. Breath-by-breath analyses of [C-13]acetone concentrations indicate that between 40 and 75% of the compound is absorbed upon inhalation and nearly all of that absorbed is released back into the breath stream during exhalation.
C1 Battelle Mem Inst, Pacific NW Lab, Div Biol Sci, Richland, WA 99352 USA.
   US EPA, Natl Ctr Environm Assessment, Res Triangle Pk, NC 27711 USA.
   US EPA, Human Studies Div, Chapel Hill, NC USA.
RP Thrall, KD (reprint author), Battelle Mem Inst, Pacific NW Lab, Div Biol Sci, 902 Battelle Blvd,Mail Stop P7-59, Richland, WA 99352 USA.
NR 21
TC 6
Z9 6
U1 1
U2 1
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0895-8378
J9 INHAL TOXICOL
JI Inhal. Toxicol.
PD MAY
PY 2003
VL 15
IS 6
BP 523
EP 538
DI 10.1080/08958370390205056
PG 16
WC Toxicology
SC Toxicology
GA 681XQ
UT WOS:000183061200001
PM 12692729
ER

PT J
AU Donchev, A
   Gleeson, B
   Schutze, M
AF Donchev, A
   Gleeson, B
   Schutze, M
TI Thermodynamic considerations of the beneficial effect of halogens on the
   oxidation resistance of TiAl-based alloys
SO INTERMETALLICS
LA English
DT Article
DE titanium aluminides; based on TiAl; oxidation; thermodynamic and
   thermochemical properties
ID AL-CR ALLOYS; TITANIUM ALUMINIDES; ION-IMPLANTATION; CHLORINE;
   IMPROVEMENT; BEHAVIOR
AB The high-temperature oxidation resistance of gamma-TiAl alloys can be significantly improved by the addition of small amounts of halogens, e.g. by ion implantation. The mechanism for this so-called halogen effect is based on the exclusive transport and subsequent oxidation of a gaseous aluminium-containing species in the inner region of the initially-formed scale to develop an Al2O3-rich protective layer. The present study verified this mechanism on the basis of thermodynamic calculations in the temperature range 700-1100 degreesC. The standard Gibbs energies of the most important reactions for the halogens F, Cl, Br, and I were considered and temperature-dependent halogen partial-pressure limits for the occurrence of the beneficial effect were determined. The lower partial-pressure limit was considered to be dictated by the minimum supply rate of aluminium necessary to sustain Al2O3 scale growth, while the upper limit was dictated by the competition between Al2O3 and TiO2 formation. The results from the chlorine calculations were used to estimate the number of chlorine atoms necessary at the alloy surface for the beneficial effect to operate. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 DECHEMA eV, Karl Winnacker Inst, D-60486 Frankfurt, Germany.
   Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
   Iowa State Univ, Met & Ceram Sci Program, Ames Lab, USDoE, Ames, IA 50011 USA.
RP Schutze, M (reprint author), DECHEMA eV, Karl Winnacker Inst, Theodor Heuss Allee 25, D-60486 Frankfurt, Germany.
EM schuetze@dechema.de
NR 25
TC 73
Z9 76
U1 2
U2 20
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0966-9795
EI 1879-0216
J9 INTERMETALLICS
JI Intermetallics
PD MAY
PY 2003
VL 11
IS 5
BP 387
EP 398
DI 10.1016/S0966-9795(03)00003-7
PG 12
WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy &
   Metallurgical Engineering
SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
GA 668KP
UT WOS:000182290100001
ER

PT J
AU Martinez-Frias, J
   Pham, AQ
   Aceves, SM
AF Martinez-Frias, J
   Pham, AQ
   Aceves, SM
TI A natural gas-assisted steam electrolyzer for high-efficiency production
   of hydrogen
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
ID HIGH-TEMPERATURE ELECTROLYSIS; WATER-VAPOR
AB This paper presents a description and analysis of a novel, high-efficiency, solid oxide natural gas-assisted steam electrolyzer (NGASE). In conventional solid oxide electrolyzers, most of the electric power is used in forcing the oxygen to diffuse through the electrolyzer, against a high chemical potential. In the NGASE, natural gas is reacted with the oxygen produced in the electrolysis, reducing the chemical potential across the electrolyzer, thus minimizing electricity consumption. The oxygen produced in the electrolysis is consumed in either a total oxidation or a partial oxidation reaction with natural gas. Experiments performed on single cells show a voltage reduction of as much as 1 V when compared to conventional steam electrolyzers. Analysis indicates that incorporating the electrolyzer with a heat recovery system (heat exchangers and catalytic reactor) results in a high-efficiency hydrogen production system. The system efficiency is up to 70% with respect to primary energy. (C) 2002 Published by Elsevier Science Ltd on behalf of the International Association for Hydrogen Energy.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Martinez-Frias, J (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave,L-644, Livermore, CA 94551 USA.
RI aceves, salvador/G-9052-2011; Zeng, Min/E-5884-2014
OI aceves, salvador/0000-0001-5687-7256; Zeng, Min/0000-0002-0376-3041
NR 13
TC 49
Z9 51
U1 2
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD MAY
PY 2003
VL 28
IS 5
BP 483
EP 490
AR PII S0360-3199(02)00135-0
DI 10.1016/S0360-3199(02)00135-0
PG 8
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 655RD
UT WOS:000181565700003
ER

PT J
AU Forrestal, MJ
   Frew, DJ
   Hickerson, JP
   Rohwer, TA
AF Forrestal, MJ
   Frew, DJ
   Hickerson, JP
   Rohwer, TA
TI Penetration of concrete targets with deceleration-time measurements
SO INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
LA English
DT Article
DE penetration; concrete targets; deceleration-time measurements
ID NOSE STEEL PROJECTILES; 6061-T6511 ALUMINUM TARGETS; STRIKING
   VELOCITIES; 3.0 KM/S; RODS
AB We conducted two sets of penetration experiments with concrete targets that had average compressive strengths of 23 and 39 MPa (3.3 and 5.7 ksi). The 76.2-mm-diameter, 530-mm-long, ogive-nose projectiles were machined from 4340 R(c)45 steel and designed to contain a single-channel acceleration data recorder. Thus, we recorded acceleration during launch and deceleration during penetration. An 83-mm-diameter powder gun launched the 13 kg projectiles to striking velocities between 140 and 460 m/s. Measured penetration depths and deceleration-time data were analyzed with a previously published model. In addition, we compared the results of this study with results obtained from smaller diameter projectiles and this comparison suggested a projectile diameter scale effect. (C) 2002 Published by Elsevier Science Ltd.
C1 Sandia Natl Labs, Dept 15414, Albuquerque, NM 87185 USA.
   USA, Strurct & Geotech lab, ERDC, WES, Vicksburg, MS 39180 USA.
RP Frew, DJ (reprint author), Sandia Natl Labs, Dept 15414, POB 5800, Albuquerque, NM 87185 USA.
NR 18
TC 102
Z9 165
U1 5
U2 28
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0734-743X
J9 INT J IMPACT ENG
JI Int. J. Impact Eng.
PD MAY
PY 2003
VL 28
IS 5
BP 479
EP 497
AR PII S0734-743X(02)00108-2
DI 10.1016/S0734-743X(02)00108-2
PG 19
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA 648MB
UT WOS:000181154200002
ER

PT J
AU Yadav, S
   Ravichandran, G
AF Yadav, S
   Ravichandran, G
TI Penetration resistance of laminated ceramic/polymer structures
SO INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
LA English
DT Article
ID LOW-VELOCITY IMPACT; MICROMECHANICAL MODEL; LAYERED CERAMICS; GLASS
   SUBJECT; FAILURE; ALUMINA; WAVES; PROPAGATION; COMPOSITES; INTERFACE
AB Ballistic penetration experiments have been performed on ceramic tiles laminated with thin layers of polymer in between. The experiment involves shooting a cylindrical rod made of a tungsten heavy alloy (WHA) against an unconfined ceramic/polymer laminated structure that is backed by a 6061-T6 aluminum alloy cylindrical-block, at a velocity ranging between 1000 to 1200 m/s. The residual depth of penetration in the aluminum block is used as a measure of the resistance offered by the laminated ceramic/polymer structure to ballistic penetration. Penetration resistance of the laminated ceramic/polymer structures is compared to that of monolithic ceramic structures of the same total thickness. Experimental results demonstrate that penetration resistance of an unconfined ceramic structure can be improved significantly by laminating ceramic tiles with thin polymer layers in between. This enhanced performance of the laminated structure is attributed to a reduced wave propagation (and damage) velocity in the laminated ceramic/polymer structure and also to the crack arresting feature of the polymer layer. (C) 2002 Elsevier Science Ltd. All rights reserved.
C1 CALTECH, Grad Aeronaut Labs, Pasadena, CA 91125 USA.
RP Yadav, S (reprint author), Fermilab Natl Accelerator Lab, MS 316,POB 500,Wilson & Kirk Rd, Batavia, IL 60510 USA.
NR 44
TC 30
Z9 38
U1 0
U2 22
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0734-743X
J9 INT J IMPACT ENG
JI Int. J. Impact Eng.
PD MAY
PY 2003
VL 28
IS 5
BP 557
EP 574
AR PII S0734-743X(02)00122-7
DI 10.1016/S0734-743X(02)00122-7
PG 18
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA 648MB
UT WOS:000181154200006
ER

PT J
AU Fugate, M
   Gattiker, JR
AF Fugate, M
   Gattiker, JR
TI Computer intrusion detection with classification and anomaly detection,
   using SVMs
SO INTERNATIONAL JOURNAL OF PATTERN RECOGNITION AND ARTIFICIAL INTELLIGENCE
LA English
DT Article; Proceedings Paper
CT 1st International Workshop on Pattern Recognition with Support Vector
   Machines
CY AUG 10, 2002
CL NIAGARA FALLS, CANADA
SP KAIST, Brain Sci Res Ctr, MIT Ctr Biol & Computat Learning, Seoul Natl Univ, Stat Res Ctr Complex Syst, WatchVision Inc, Korea Univ Ctr Artificial Vis Res, Univ Genova, Comp Sci Dept
DE support vector machines; anomaly detection; intrusion detection;
   classification; outlier detection
AB This paper describes experiences and results applying Support Vector Machine (SVM) to a Computer Intrusion Detection (CID) dataset. First, issues in supervised classification are discussed, then the incorporation of anomaly detection enhancing the modeling and prediction of cyber-attacks. SVM methods axe seen as competitive with benchmark methods and other studies, and are used as a standard for the anomaly detection investigation. The anomaly detection approaches compare one class SVMs with a thresholded Mahalanobis distance to define support regions. Results compare the performance of the methods and investigate joint performance of classification and anomaly detection. The dataset used is the DARPA/KDD-99 publicly available dataset of features from network packets, classified into nonattack and four-attack categories.
C1 Los Alamos Natl Lab, Nonproliferat & Int Secur Safeguards Syst, Los Alamos, NM 87545 USA.
RP Los Alamos Natl Lab, Nonproliferat & Int Secur Safeguards Syst, NIS 7, Los Alamos, NM 87545 USA.
EM fugate@lanl.gov; gatt@lanl.gov
NR 18
TC 19
Z9 22
U1 1
U2 5
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-0014
EI 1793-6381
J9 INT J PATTERN RECOGN
JI Int. J. Pattern Recognit. Artif. Intell.
PD MAY
PY 2003
VL 17
IS 3
BP 441
EP 458
DI 10.1142/S0218001403002459
PG 18
WC Computer Science, Artificial Intelligence
SC Computer Science
GA 690WW
UT WOS:000183574300008
ER

PT J
AU Beyerlein, IJ
   Zhou, CH
   Schadler, LS
AF Beyerlein, IJ
   Zhou, CH
   Schadler, LS
TI A time dependent micro-mechanical fiber composite model for inelastic
   zone growth in viscoelastic matrices
SO INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
LA English
DT Article
DE fracture; polymer matrix composites; creep; micro-Raman spectroscopy;
   interfacial slipping; plastic matrix
ID BROKEN FIBERS; RAMAN-SPECTROSCOPY; CREEP-RUPTURE; REINFORCED COMPOSITES;
   STRESS-RELAXATION; LOAD-TRANSFER; STATISTICS; EVOLUTION; PROFILES;
   LIFETIME
AB In this work, a fiber composite model is developed to predict the time dependent stress transfer behavior due to fiber fractures, as driven by the viscoelastic behavior of the polymer matrix, and the initiation and propagation of inelastic zones. We validate this model using in situ, room temperature, micro-Raman spectroscopy fiber strain measurements. Multifiber composites were placed under constant load creep tests and the fiber strains were evaluated with time after one fiber break occurred. These composite specimens ranged in fiber volume fraction and strain level. Comparison between prediction and MRS measurements allows us to characterize key in situ material parameters, the critical matrix shear strain for inelastic zones and interfacial frictional slip shear stress. We find that the inelastic zone is predominately either shear yielding or interfacial slipping, and the type depends on the local fiber spacing. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
   Rensselaer Polytech Inst, Troy, NY 12180 USA.
RP Beyerlein, IJ (reprint author), Los Alamos Natl Lab, Div Theoret, Mail Stop B216, Los Alamos, NM 87545 USA.
RI Beyerlein, Irene/A-4676-2011
NR 30
TC 6
Z9 6
U1 0
U2 2
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0020-7683
J9 INT J SOLIDS STRUCT
JI Int. J. Solids Struct.
PD MAY
PY 2003
VL 40
IS 9
BP 2171
EP 2194
DI 10.1016/S0020-7683(03)00021-0
PG 24
WC Mechanics
SC Mechanics
GA 665WA
UT WOS:000182143200008
ER

PT J
AU Blakely, EA
   Chang, PY
   McNamara, MP
   Bjornstad, KA
   Rosen, CJ
   Mancini, R
   Goldstein, LE
   Chylack, LT
AF Blakely, EA
   Chang, PY
   McNamara, MP
   Bjornstad, KA
   Rosen, CJ
   Mancini, R
   Goldstein, LE
   Chylack, LT
TI Gene expression of CDK-inhibitors during lens differentiation and the
   radiation response of cultured human lens cells
SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
LA English
DT Meeting Abstract
CT Annual Meeting of the
   Association-for-Research-in-Vision-and-Ophthalmology
CY MAY   04, 2003
CL FT LAUDERDALE, FLORIDA
SP Assoc Res Vis & Ophthalmol
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
   SRI Int, Biopharmaceut Div, Menlo Pk, CA 94025 USA.
   Roger Williams Med Ctr, Brighton, MA USA.
   Brigham & Womens Hosp, Ctr Ophthalm Res, Boston, MA 02115 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASSOC RESEARCH VISION OPHTHALMOLOGY INC
PI ROCKVILLE
PA 12300 TWINBROOK PARKWAY, ROCKVILLE, MD 20852-1606 USA
SN 0146-0404
J9 INVEST OPHTH VIS SCI
JI Invest. Ophthalmol. Vis. Sci.
PD MAY
PY 2003
VL 44
SU 2
MA 3257
BP U211
EP U211
PG 1
WC Ophthalmology
SC Ophthalmology
GA 709CK
UT WOS:000184607000722
ER

PT J
AU Goldstein, LE
   Moir, R
   Cherny, R
   Pineda, R
   Blakely, E
   Chang, P
   Bjornstad, K
   Tanzi, R
   Bush, A
   Chylack, LT
AF Goldstein, LE
   Moir, R
   Cherny, R
   Pineda, R
   Blakely, E
   Chang, P
   Bjornstad, K
   Tanzi, R
   Bush, A
   Chylack, LT
TI Expression and further characterization of Alzheimer's disease
   beta-amyloid (Abeta) in human aqueous humor and lens
SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
LA English
DT Meeting Abstract
CT Annual Meeting of the
   Association-for-Research-in-Vision-and-Ophthalmology
CY MAY   04, 2003
CL FT LAUDERDALE, FLORIDA
SP Assoc Res Vis & Ophthalmol
C1 Brigham & Womens Hosp, Ctr Ophthalm Res, Boston, MA 02115 USA.
   Massachusetts Gen Hosp, Dept Neurol, Genet & Aging Res Unit, Boston, MA 02114 USA.
   Univ Melbourne, Dept Pathol, Melbourne, Vic, Australia.
   Massachusetts Eye & Ear Infirm, Dept Ophthalmol, Boston, MA 02114 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Massachusetts Gen Hosp, Genet & Aging Res Unit, Charlestown, MA USA.
   Massachusetts Gen Hosp, Lab Oxidat Biol, Charlestown, MA USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
PU ASSOC RESEARCH VISION OPHTHALMOLOGY INC
PI ROCKVILLE
PA 12300 TWINBROOK PARKWAY, ROCKVILLE, MD 20852-1606 USA
SN 0146-0404
J9 INVEST OPHTH VIS SCI
JI Invest. Ophthalmol. Vis. Sci.
PD MAY
PY 2003
VL 44
SU 2
MA 3488
BP U260
EP U260
PG 1
WC Ophthalmology
SC Ophthalmology
GA 709CK
UT WOS:000184607000950
ER

PT J
AU Guven, D
   Fujii, G
   Maghribi, MN
   Okandan, M
   Krulevitch, P
   Wessendorf, K
   Weiland, JD
   Humayun, MS
AF Guven, D
   Fujii, G
   Maghribi, MN
   Okandan, M
   Krulevitch, P
   Wessendorf, K
   Weiland, JD
   Humayun, MS
TI High-density high electrode count retinal stimulating arrays
SO INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE
LA English
DT Meeting Abstract
CT Annual Meeting of the
   Association-for-Research-in-Vision-and-Ophthalmology
CY MAY   04, 2003
CL FT LAUDERDALE, FLORIDA
SP Assoc Res Vis & Ophthalmol
C1 Univ So Calif, Doheny Retina Inst, Doheny Eye Inst, Keck Sch Med, Los Angeles, CA USA.
   Lawrence Livermore Natl Lab, Livermore, CA USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASSOC RESEARCH VISION OPHTHALMOLOGY INC
PI ROCKVILLE
PA 12300 TWINBROOK PARKWAY, ROCKVILLE, MD 20852-1606 USA
SN 0146-0404
J9 INVEST OPHTH VIS SCI
JI Invest. Ophthalmol. Vis. Sci.
PD MAY
PY 2003
VL 44
SU 2
MA 5060
BP U703
EP U703
PG 1
WC Ophthalmology
SC Ophthalmology
GA 709CK
UT WOS:000184607002519
ER

PT J
AU Gray, JE
   Hines, ME
   Biester, H
   Lasorsa, BK
AF Gray, JE
   Hines, ME
   Biester, H
   Lasorsa, BK
TI Mercury methylation in mine wastes collected from abandoned mercury
   mines in the USA
SO JOURNAL DE PHYSIQUE IV
LA English
DT Article; Proceedings Paper
CT 12th International Conference on Heavy Metals in the Environment
CY MAY 26-30, 2003
CL GRENOBLE, FRANCE
SP ISERE, Vill Grenoble, Grenoble Alpes, SHF Hydrotech, Alpexpo, AMSE, SUG, LGGE, Minist Affaires Etrangeres, Minist L Ecologie Dev Durable
ID SPECIATION; SEDIMENTS; SLOVENIA; RIVER
AB Speciation and transformation of Hg was studied in mine wastes collected from abandoned Hg mines at McDermitt, Nevada, and Terlingua, Texas, to evaluate formation of methyl-Hg, which is highly toxic. In these mine wastes, we measured total Hg and methyl-Hg contents, identified various Hg compounds using a pyrolysis technique, and determined rates of Hg methylation and methyl-Hg demethylation using isotopic-tracer methods. Mine wastes contain total Hg contents as high as 14000 mug/g and methyl-Hg concentrations as high as 88 ng/g. Mine wastes were found to contain variable amounts of cinnabar, metacinnabar, Hg salts, Hg-0, and Hg-0 and Hg sorbed onto matrix particulates. Samples with Hg-0 and matrix-sorbed Hg generally contained significant methyl-Hg contents. Similarly, samples containing Hg-0 compounds generally produced significant Hg methylation rates, as much as 26 %/day. Samples containing mostly cinnabar showed little or no Hg methylation. Mine wastes with high methyl-Hg contents generally showed low methyl-Hg demethylation, suggesting that Hg methylation was dominant. Methyl-Hg demethylation was by both oxidative and microbial pathways. The correspondence of mine wastes containing Hg-0 compounds and measured Hg methylation suggests that Hg-0 oxidizes to Hg2+, which is subsequently bioavailable for microbial Hg methylation.
C1 US Geol Survey, Denver, CO 80225 USA.
   Univ Massachusetts, Dept Biol Sci, Lowell, MA 01854 USA.
   Univ Heidelberg, Inst Environm Geochem, D-69120 Heidelberg, Germany.
   Battelle Marine Sci Lab, Sequim, WA 98382 USA.
RP Gray, JE (reprint author), US Geol Survey, POB 25046,MS 973, Denver, CO 80225 USA.
NR 12
TC 8
Z9 9
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 MAY
PY 2003
VL 107
BP 573
EP 576
DI 10.1051/jp4:20030368
PN 1
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 694PE
UT WOS:000183782300141
ER

PT J
AU Isaure, MP
   Manceau, A
   Laboudigue, A
   Tamura, N
   Marcus, MA
AF Isaure, MP
   Manceau, A
   Laboudigue, A
   Tamura, N
   Marcus, MA
TI Zn speciation in a soil contaminated by the deposition of a dredged
   sediment by synchrotron X-ray techniques
SO JOURNAL DE PHYSIQUE IV
LA English
DT Article; Proceedings Paper
CT 12th International Conference on Heavy Metals in the Environment
CY MAY 26-30, 2003
CL GRENOBLE, FRANCE
SP ISERE, Vill Grenoble, Grenoble Alpes, SHF Hydrotech, Alpexpo, AMSE, SUG, LGGE, Minist Affaires Etrangeres, Minist L Ecologie Dev Durable
ID QUANTITATIVE SPECIATION; EXAFS SPECTROSCOPY
AB The nature and proportion of Zn species present in an agricultural soil overlaid by a dredged contaminated sediment have been untangled by the novel combination of three non-invasive synchrotron-based x-ray techniques: x-ray microfluorescence (muSXRF), microdiffraction (muXRD), and absorption spectroscopy (EXAFS). One primary (franklinite) and two secondary (phyllomanganate and phyllosilicate) Zn-containing minerals were identified in the initial soil, and another primary (ZnS) and a new secondary (Fe-(oxyhydr)oxide) Zn species in the covered soil. The quantitative analysis of EXAFS spectra recorded on bulk samples indicated that ZnS and Zn-Fe (oxyhydr)oxides amounted to 71+/-10% and 27+/-10%, respectively, and the other Zn species to less than 10%. The two new Zn species found in the covered soil result from the gravitational migration of ZnS particles initially present in the sediment, and from their farther oxidative dissolution and fixation of leached Zn on Fe (oxyhydr)oxides.
C1 Univ Grenoble 1, Environm Geochem Grp, LGIT Maison Geosci, F-38041 Grenoble 9, France.
   Ctr Natl Rech Sites & Sols Pollues, F-59505 Douai, France.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
RP Isaure, MP (reprint author), CEA Grenoble, DRT DTEN SAT, 17 Rue Martyrs, F-38054 Grenoble 9, France.
RI Laboudigue, Agnes/B-9025-2013
NR 6
TC 2
Z9 3
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 MAY
PY 2003
VL 107
BP 657
EP 660
DI 10.1051/jp4:20030389
PN 1
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 694PE
UT WOS:000183782300162
ER

PT J
AU Kirpichtchikova, T
   Manceau, A
   Lanson, B
   Marcus, MA
   Jacquet, T
AF Kirpichtchikova, T
   Manceau, A
   Lanson, B
   Marcus, MA
   Jacquet, T
TI Speciation and mobility of Zn, Cu and Pb in a truck farming soil
   contaminated by sewage irrigation
SO JOURNAL DE PHYSIQUE IV
LA English
DT Article; Proceedings Paper
CT 12th International Conference on Heavy Metals in the Environment
CY MAY 26-30, 2003
CL GRENOBLE, FRANCE
SP ISERE, Vill Grenoble, Grenoble Alpes, SHF Hydrotech, Alpexpo, AMSE, SUG, LGGE, Minist Affaires Etrangeres, Minist L Ecologie Dev Durable
ID HEAVY-METALS; CHELATING-AGENTS
AB The forms and mobility of Cu (290 mg/kg), Zn (1103 mg/kg), and Pb (535 mg/kg) in a soil used for intensive truck fanning from the Region Ile-de-France, and which has been irrigated for more than a century with sewage water from the city of Paris, have been studied by chemical treatments and advanced x-ray techniques. Elemental associations and forms of metals were determined qualitatively and quantitatively by a combination of physical techniques, including muPIXE (Cu, Zn, Pb), muSXRF (Cu, Zn), muEXAFS (Zn) and powder EXAFS (Zn). The nature, number, and relative proportion of Zn species were obtained by principal component analysis and decomposition of Zn K-edge EXAFS spectra. These data collectively indicate that Cu is associated mainly with organic matter, and that Zn and Ph are bound essentially to mineral constituents. Four Zn-containing species were positively identified: Zn-phosphate and phyllosilicate as dominant species, and Zn-Fe oxyhydroxide and willemite (Zn2SiO4) as minor species. Studies are underway to determine the structural forms of Cu and Pb. Depending on the chemical treatment, up to 70% Cu, similar to50% Zn, and similar to85% Pb can be removed in a few days with citrate and EDTA. Citrate is generally at least as efficient as EDTA, and it has the advantage of being easily biodegradable and, hence, less harmful to ecosystems.
C1 Univ Grenoble 1, CNRS, LGIT, Environm Geochem Grp, F-38041 Grenoble 9, France.
   Site & Concept, F-75011 Paris, France.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Kirpichtchikova, T (reprint author), Univ Grenoble 1, CNRS, LGIT, Environm Geochem Grp, BP 53, F-38041 Grenoble 9, France.
RI lanson, bruno/A-4207-2009
OI lanson, bruno/0000-0003-1187-3221
NR 7
TC 5
Z9 5
U1 0
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 MAY
PY 2003
VL 107
BP 695
EP 698
DI 10.1051/jp4:20030398
PN 1
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 694PE
UT WOS:000183782300171
ER

PT J
AU Sarret, G
   Schroeder, WH
   Marcus, MA
   Geoffroy, N
   Manceau, A
AF Sarret, G
   Schroeder, WH
   Marcus, MA
   Geoffroy, N
   Manceau, A
TI Localization and speciation of Zn in mycorrhized roots by mu SXRF and mu
   EXAFS
SO JOURNAL DE PHYSIQUE IV
LA English
DT Article; Proceedings Paper
CT 12th International Conference on Heavy Metals in the Environment
CY MAY 26-30, 2003
CL GRENOBLE, FRANCE
SP ISERE, Vill Grenoble, Grenoble Alpes, SHF Hydrotech, Alpexpo, AMSE, SUG, LGGE, Minist Affaires Etrangeres, Minist L Ecologie Dev Durable
ID SPECTROSCOPY
AB Mycorrhizae are symbiotic associations between soil fungi and plant roots, which enhance mineral nutrition for the plant, and might play an important role in metals acquisition and accumulation. The processes allowing metals mobilization in the soil, absorption by the root and/or the fungus, transfer or bioaccumulation are still poorly understood. However, the properties of mycorrhizal fungi could be used for phytoremediation, a soft technique using plants for the clean-up of metal polluted soils. In this work, mycorrhized roots of tomato plants grown in a Zn-contaminated soil were investigated. The distribution of metals and the speciation of Zn were studied at the micron scale using micro synchrotron-based X-ray fluorescence (muSXRF) and micro X-ray absorption spectroscopy (muEXAFS). Zn associated to the root was Zn malate and/or Zn citrate, and Zn associated to the fungus was Zn phyllosilicate. This study illustrates the great potential of X-ray microbeams for the study of biological samples containing various amounts of metals.
C1 Univ Grenoble 1, CNRS, LGIT, Environm Geochem Grp, F-38041 Grenoble 9, France.
   Forschungszentrum Juelich, Inst Phytosphaere IGC 3 14 8, D-52425 Julich, Germany.
   Lawrence Berkeley Lab, ALS, Berkeley, CA 94720 USA.
RP Sarret, G (reprint author), Univ Grenoble 1, CNRS, LGIT, Environm Geochem Grp, BP 53, F-38041 Grenoble 9, France.
RI Sarret, Geraldine/I-2797-2016
NR 7
TC 13
Z9 14
U1 0
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 MAY
PY 2003
VL 107
BP 1193
EP 1196
DI 10.1051/jp4:20030514
PN 2
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 694PG
UT WOS:000183782500112
ER

PT J
AU Lopez-Herrera, JM
   Barrero, A
   Lopez, A
   Loscertales, IG
   Marquez, M
AF Lopez-Herrera, JM
   Barrero, A
   Lopez, A
   Loscertales, IG
   Marquez, M
TI Coaxial jets generated from electrified Taylor cones. Scaling laws
SO JOURNAL OF AEROSOL SCIENCE
LA English
DT Article
ID SELECTIVE WITHDRAWAL; DRUG-DELIVERY; MICROSPHERE; SYSTEM
AB An experimental investigation on the electrified co-axial jets of two immiscible liquids issuing from a structured Taylor cone (Science 295 (5560) (2002) 1695) has been carried out. The structure of these almost conical electrified menisci consists of an outer meniscus surrounding an inner one. The liquid threads which issue from the vertex of each one of the menisci give rise to a two-concentric layered jet whose eventual breakup results in an aerosol of relatively monodisperse compound droplets with the outer liquid encapsulating the inner one. The effect of the flow rates of both liquids on the current transported by these coaxial jets and on the size of the compound droplets has been investigated. Several couples of liquids have been used to explore the influence on the spraying process of the properties of the liquids: i.e. the electrical conductivity K, dielectric constant beta, interfacial tension of the liquid couple gamma, viscosity mu, etc. We have found that the measurements of the current emitted through the coaxial jet when they are made dimensionless fit satisfactorily the current scaling law of regular electrosprays. Data of the mean diameter of the compound droplets have been obtained using a non-intrusive laser system. As expected the breakup process and therefore the droplet size are strongly dependent on the liquid viscosities and on the ratio of the liquid flow rates. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Univ Sevilla, Escuela Super Ingn, Seville 41092, Spain.
   YFLOW SL, Seville 41018, Spain.
   Ecole Natl Super Mecan & Aerotech, F-86960 Chasseneuil, France.
   Univ Malaga, Escuela Tecn Super Ingn Ind, Malaga 41013, Spain.
   Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
   Natl Inst Stand & Technol, Phys & Chem Properties Div, Computat Chem Grp, Gaithersburg, MD 20899 USA.
   Kraft Gen R&D, Nanotechnol Lab, Glenview, IL 60025 USA.
RP Barrero, A (reprint author), Univ Sevilla, Escuela Super Ingn, Camino Descubrimientos S-N, Seville 41092, Spain.
OI Lopez-Herrera, Jose/0000-0002-3063-8676
NR 14
TC 103
Z9 111
U1 5
U2 37
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0021-8502
J9 J AEROSOL SCI
JI J. Aerosol. Sci.
PD MAY
PY 2003
VL 34
IS 5
BP 535
EP 552
DI 10.1016/S0021-8502(03)00021-1
PG 18
WC Engineering, Chemical; Engineering, Mechanical; Environmental Sciences;
   Meteorology & Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
   Sciences
GA 681FE
UT WOS:000183025600002
ER

PT J
AU Li, J
   Zhong, Z
   Lidtke, R
   Kuettner, KE
   Peterfy, C
   Aliyeva, E
   Muehleman, C
AF Li, J
   Zhong, Z
   Lidtke, R
   Kuettner, KE
   Peterfy, C
   Aliyeva, E
   Muehleman, C
TI Radiography of soft tissue of the foot and ankle with diffraction
   enhanced imaging
SO JOURNAL OF ANATOMY
LA English
DT Article
DE cartilage imaging; cartilage radiography; soft tissue radiography;
   tendon imaging; X-ray imaging
AB Non-calcified tissues, including tendons, ligaments, adipose tissue and cartilage, are not visible, for any practical purposes, with conventional X-ray imaging. Therefore, any pathological changes in these tissues generally necessitate detection through magnetic resonance imaging or ultrasound technology. Until recently the development of an X-ray imaging technique that could detect both bone and soft tissues seemed unrealistic. However, the introduction of diffraction enhanced X-ray imaging (DEI) which is capable of rendering images with absorption, refraction and scatter rejection qualities has allowed detection of specific soft tissues based on small differences in tissue densities. Here we show for the first time that DEI allows high contrast imaging of soft tissues, including ligaments, tendons and adipose tissue, of the human foot and ankle.
C1 Rush Med Coll, Dept Anat, Chicago, IL 60612 USA.
   Rush Med Coll, Dept Biochem, Chicago, IL 60612 USA.
   Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
   Finch Univ Hlth Sci Chicago Med Sch, WM Scholl Coll Podiatr Med, N Chicago, IL 60064 USA.
   SYNARC Inc, San Francisco, CA 94105 USA.
RP Muehleman, C (reprint author), Rush Med Coll, Dept Anat, ACFAC507,600 S Paulina, Chicago, IL 60612 USA.
FU NIAMS NIH HHS [R01 AR 48292, R01 AR048292, 2-P50-AR 39239, P50
   AR039239]; NIGMS NIH HHS [GM59395-01]
NR 10
TC 57
Z9 61
U1 0
U2 4
PU BLACKWELL PUBLISHING LTD
PI OXFORD
PA 9600 GARSINGTON RD, OXFORD OX4 2DG, OXON, ENGLAND
SN 0021-8782
J9 J ANAT
JI J. Anat.
PD MAY
PY 2003
VL 202
IS 5
BP 463
EP 470
PG 8
WC Anatomy & Morphology
SC Anatomy & Morphology
GA 674XX
UT WOS:000182663800006
PM 12739623
ER

PT J
AU McGrane, SD
   Moore, DS
   Funk, DJ
AF McGrane, SD
   Moore, DS
   Funk, DJ
TI Sub-picosecond shock interferometry of transparent thin films
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID VIBRATIONAL SPECTROSCOPY; WAVE; PRESSURE; TEMPERATURE
AB Ultrafast spatial interferometric measurements of shock dynamics in transparent thin films exhibit phase shifts caused by both surface motion and the interference of multiple reflections off the moving shock wave interface. The interference effects are strong perturbations on the phase shift, which do not allow independent measurement of surface motion. Calculations of the time dependent phase shift that include reflective surface motion, shock wave transit through the transparent thin film, and thin film interference effects are shown to match experimental measurements in 625-nm-thick films of polymethylmethacrylate (PMMA) shocked to 19 GPa. Interferometric data obtained at two angles of incidence and two polarizations were sufficient to uniquely determine the PMMA shocked refractive index, shock speed, and particle velocity. Interferometric results as a function of shock strength, 2-20 GPa, suggest that submicron PMMA films have essentially the same material response to shock loading (Hugoniot) as macroscopic samples. (C) 2003 American Institute of Physics.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP McGrane, SD (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
RI Moore, David/C-8692-2013
NR 29
TC 30
Z9 30
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 MAY 1
PY 2003
VL 93
IS 9
BP 5063
EP 5068
DI 10.1063/1.1563034
PG 6
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700014
ER

PT J
AU Usov, I
   Parikh, N
   Kudriavtsev, Y
   Asomoza, R
   Reitmeier, Z
   Davis, R
AF Usov, I
   Parikh, N
   Kudriavtsev, Y
   Asomoza, R
   Reitmeier, Z
   Davis, R
TI GaN evaporation and enhanced diffusion of Ar during high-temperature ion
   implantation
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID NITRIDES
AB GaN films were implanted with 150 keV Ar+ at temperatures up to 1100 degreesC to a dose of 3x10(15) cm(-2). Concentration profiles of Ar were measured by secondary ion mass spectroscopy and depth distributions of ion-induced damage were estimated from Rutherford backscattering/channeling spectra. No redistribution of Ar atoms was detected up to 700 degreesC. At 1000 degreesC a deep penetrating diffusion tail and a shift of the Ar peak to the surface were observed. At temperatures higher than 800 degreesC shift of the damage peak to the surface was also observed. We attributed the shift of the Ar peak and the damage peaks to evaporation of thin layer of GaN during high-temperature implantation and estimated its temperature dependence. (C) 2003 American Institute of Physics.
C1 Univ N Carolina, Curriculum Appl & Mat Sci, Chapel Hill, NC 27599 USA.
   IPN, Dept Ingn Elect SEES, CINVESTAV, Mexico City 07300, DF, Mexico.
   N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
RP Usov, I (reprint author), Los Alamos Natl Lab, MST STC, POB 1663, Los Alamos, NM 87545 USA.
RI Kudriavtsev, Yuriy/A-7389-2008
NR 10
TC 3
Z9 3
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
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5140
EP 5142
DI 10.1063/1.1564271
PG 3
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700028
ER

PT J
AU Gupta, A
   Wang, H
   Kvit, A
   Duscher, G
   Narayan, J
AF Gupta, A
   Wang, H
   Kvit, A
   Duscher, G
   Narayan, J
TI Effect of microstructure on diffusion of copper in TiN films
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID VAPOR-DEPOSITION; 100 SILICON; CU; METALLIZATION
AB We investigated the effect of the microstructure of TiN films on the diffusion behavior of Cu. Cu/TiN films were synthesized on Si(100) substrate by the pulsed laser deposition (PLD) technique. Three different microstructures of TiN were achieved by growing the films at different substrate temperatures, where higher deposition temperatures (similar to650 degreesC) led to epitaxial growth by the mechanism of domain matching epitaxy and lower temperature depositions resulted in polycrystalline and nanocrystalline TiN films. These structures were characterized using x-ray diffraction and high-resolution transmission electron microscopy. Cu was deposited in situ on the samples with three different microstructures of TiN films on Si(100) by PLD. All three samples were simultaneously annealed at 500 degreesC for 30 min in high vacuum to study the effect of diffusion characteristics of Cu as a function of microstructure of the TiN films. Secondary ion mass spectroscopy, Z-contrast imaging and electron energy-loss spectroscopy were used to understand the diffusion mechanisms and rationalize results in different microstructures. (C) 2003 American Institute of Physics.
C1 N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
   N Carolina State Univ, NSF, Ctr Adv Mat & Smart Struct, Raleigh, NC 27695 USA.
   Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA.
RP Gupta, A (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA.
RI Narayan, Jagdish/D-1874-2009; Duscher, Gerd/G-1730-2014; Wang,
   Haiyan/P-3550-2014
OI Duscher, Gerd/0000-0002-2039-548X; Wang, Haiyan/0000-0002-7397-1209
NR 18
TC 17
Z9 18
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5210
EP 5214
DI 10.1063/1.1566472
PG 5
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700040
ER

PT J
AU Colvin, JD
   Legrand, M
   Remington, BA
   Schurtz, G
   Weber, SV
AF Colvin, JD
   Legrand, M
   Remington, BA
   Schurtz, G
   Weber, SV
TI A model for instability growth in accelerated solid metals
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID RAYLEIGH-TAYLOR INSTABILITY; ELASTIC-PLASTIC SOLIDS; CONSTITUTIVE MODEL;
   STRAIN-RATE; ALUMINUM; VISCOSITY; PLASMAS
AB We present an approximate analytical dispersion relationship for elastic-plastic acceleration-driven instability growth. In this model, the accelerated solid behaves like a viscoplastic after its elastic yield strength is exceeded, with the viscosity inversely proportional to the strain rate. We have applied this model, or a 1993 model of shock-driven viscous instability growth, where applicable, to perturbation growth measurements made in three separate types of experiments: High-explosive (HE)-driven planar Al plates, HE-driven implosions of steel cylinders, and planar Al foils driven indirectly by Lawrence Livermore National Laboratory's Nova laser. We have also compared the analytical modeling of these experiments with simulations done with a two-dimensional Lagrangian radiation-hydrodynamics computer code containing an elastic-plastic constitutive model. We find that for the moderate strain rates of the HE experiments, the simulations and analytical modeling of perturbation growth agree with each other and with the data, using an equivalent plastic viscosity consistent with the von Mises plasticity criterion. For the high strain rates of the Nova experiments, on the other hand, the early-time growth data is consistent with viscoplastic growth, with viscosity ten to a hundred times less than the von Mises plastic viscosity for nominal strength. This observed initial material weakening is followed by a transition to a strengthened state to match the late-time growth data, which we show to be consistent with a "relaxation" hypothesis in which plastic flow at high strain rate is confined to discrete shear bands. We also show under what conditions the perturbation growth is independent of initial amplitude. (C) 2003 American Institute of Physics.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   DAM, Commissariat Energie Atom, F-91680 Bruyeres Le Chatel, France.
RP Colvin, JD (reprint author), Lawrence Livermore Natl Lab, POB 808, Livermore, CA 94550 USA.
NR 43
TC 38
Z9 41
U1 3
U2 14
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
   MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5287
EP 5301
DI 10.1063/1.1565188
PG 15
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700051
ER

PT J
AU Schelling, PK
   Phillpot, SR
AF Schelling, PK
   Phillpot, SR
TI Multiscale simulation of phonon transport in superlattices
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID THERMAL-CONDUCTIVITY
AB A particle-based model for phonon transport and the scattering of phonon wave packets at interfaces is developed. The model, which incorporates the interference effects associated with the wave nature of phonons, is parametrized with frequency-dependent scattering rates obtained from molecular-dynamics simulations of the interaction of phonon wave packets with a single interface. From simulations of scattering of phonon wave packets from superlattices, we find that when the interference effects are not included there is qualitative disagreement between the molecular-dynamics and particle simulations. Moreover, we show that such interference effects tend to result in a larger amount of energy being transmitted through a superlattice. (C) 2003 American Institute of Physics.
C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Forschungszentrum Karlsruhe, Inst Nanotechnol, D-76021 Karlsruhe, Germany.
RP Schelling, PK (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Phillpot, Simon/J-9117-2012; 
OI Phillpot, Simon/0000-0002-7774-6535
NR 11
TC 42
Z9 44
U1 1
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
   MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5377
EP 5387
DI 10.1063/1.1561601
PG 11
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700062
ER

PT J
AU Pope, AL
   Tritt, TM
   Canfield, PC
   Bud'ko, SL
   Liebenberg, DH
AF Pope, AL
   Tritt, TM
   Canfield, PC
   Bud'ko, SL
   Liebenberg, DH
TI Thermal conductivity in large residual resistance ratio MgB2 wire
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID TRANSPORT-PROPERTIES; SUPERCONDUCTORS
AB We measured the thermal conductivity in MgB2 wires, with T-c=39.5 K, in both the superconducting and normal state regimes between 10-70 K. As expected, the thermal conductivity is increased for this sample, which has a residual resistance ratio (RRR) of about 32, as compared with earlier measurements on bulk samples with much lower RRR values. Over the measured temperature range, this more metallic material exhibits a temperature dependence of the thermal conductivity in the superconducting state that is different from that in previous reports and can be ascribed primarily to defect scattering. Unusual results are presented for the magnetic field dependence of the thermal conductivity around T-c for fields up to 9 T. (C) 2003 American Institute of Physics.
C1 Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA.
   Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
   Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA.
EM ttritt@clemson.edu
RI Canfield, Paul/H-2698-2014
NR 30
TC 1
Z9 1
U1 1
U2 4
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 MAY 1
PY 2003
VL 93
IS 9
BP 5531
EP 5537
DI 10.1063/1.1563304
PG 7
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700084
ER

PT J
AU Kim, DJ
   Maria, JP
   Kingon, AI
   Streiffer, SK
AF Kim, DJ
   Maria, JP
   Kingon, AI
   Streiffer, SK
TI Evaluation of intrinsic and extrinsic contributions to the piezoelectric
   properties of Pb(Zr1-xTX)O-3 thin films as a function of composition
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID LEAD-ZIRCONATE-TITANATE; CHEMICAL-VAPOR-DEPOSITION; SOLID-SOLUTION
   SYSTEM; DOMAIN-WALL; MICROELECTROMECHANICAL SYSTEMS; ORIENTATION
   DEPENDENCE; COEFFICIENTS; CERAMICS; BOUNDARY; TEXTURE
AB The piezoelectric, dielectric, and ferroelectric properties of highly (111)-textured, 200-nm-thick polycrystalline lead zirconate titanate (PZT) films have been investigated as a function of Zr/Ti ratio. The distinct peak in piezoelectric coefficient at the morphotropic phase boundary found in bulk PZT ceramics is not observed in thin film PZTs. Measurements of the temperature dependence of relative permittivity and the nonlinear behavior of relative permittivity and piezoelectric coefficient suggest that non-180degrees domain wall motion in these films is negligible, indicating that the extrinsic contribution to the room temperature permittivity is dominated by only 180degrees domain wall motion. The semiempirical phenomenological equation relating the piezoelectric coefficient to measured polarization and permittivity values is demonstrated to give an excellent description of the piezoelectric behavior in these films, assuming bulk electrostrictive and elastic coefficients. The small deviation between calculated and measured piezoelectric coefficients as well as the dependence of piezoelectric and polarization behavior on the external field, i.e., hysteresis loop, are suggested to be primarily due to backswitching of 180degrees domains. (C) 2003 American Institute of Physics.
C1 N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Kim, DJ (reprint author), N Carolina State Univ, Dept Mat Sci & Engn, Box 7907, Raleigh, NC 27695 USA.
RI KIM, DONG-JOO/C-2277-2008; Streiffer, Stephen/A-1756-2009
NR 33
TC 104
Z9 105
U1 6
U2 46
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
   MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5568
EP 5575
DI 10.1063/1.1566478
PG 8
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700091
ER

PT J
AU Lee, HN
   Hesse, D
   Zakharov, N
   Lee, SK
   Gosele, U
AF Lee, HN
   Hesse, D
   Zakharov, N
   Lee, SK
   Gosele, U
TI Growth of uniformly a-axis-oriented ferroelectric lanthanum-substituted
   bismuth titanate films on silicon substrates
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID SRBI2TA2O9 THIN-FILMS; PULSED-LASER DEPOSITION;
   CHEMICAL-VAPOR-DEPOSITION; EPITAXIAL-GROWTH; STRUCTURE REFINEMENT;
   ORIENTATION; CAPACITORS; BI4TI3O12; SI(100)
AB Uniformly a-axis-oriented, epitaxially twinned La-substituted Bi4Ti3O12 (BLT) thin films having the major spontaneous polarization entirely along the film normal were grown by pulsed laser deposition on yttria-stabilized zirconia-buffered Si(100) substrates covered with very thin SrRuO3 bottom electrodes. Using SrRuO3 bottom electrodes of a specific low thickness in combination with a relatively high growth rate and a high oxygen pressure, the volume fraction of the BLT (100) orientation, which is competing with the BLT (118) orientation, was increased up to 99%. In this way the growth of fully a-axis-oriented BLT films was achieved, attaining a remanent polarization of 32 muC/cm(2). Initial fatigue experiments indicated hardly any fatigue after 10(9) switching cycles. (C) 2003 American Institute of Physics.
C1 Max Planck Inst Mikrostrukturphys, D-06120 Halle Saale, Germany.
RP Lee, HN (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI Lee, Ho Nyung/K-2820-2012
OI Lee, Ho Nyung/0000-0002-2180-3975
NR 31
TC 28
Z9 28
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5592
EP 5601
DI 10.1063/1.1565513
PG 10
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700094
ER

PT J
AU Birrell, J
   Gerbi, JE
   Auciello, O
   Gibson, JM
   Gruen, DM
   Carlisle, JA
AF Birrell, J
   Gerbi, JE
   Auciello, O
   Gibson, JM
   Gruen, DM
   Carlisle, JA
TI Bonding structure in nitrogen doped ultrananocrystalline diamond
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID X-RAY-ABSORPTION; CHEMICAL-VAPOR-DEPOSITION; NANOCRYSTALLINE DIAMOND;
   AMORPHOUS-CARBON; GRAIN-BOUNDARIES; THIN-FILMS; POLYCRYSTALLINE DIAMOND;
   RAMAN-SCATTERING; FINE-STRUCTURE; GROWTH
AB The transport properties of diamond thin films are well known to be sensitive to the sp(2)/sp(3)-bonded carbon ratio, the presence of the grain boundaries and other defects, and to the presence of various impurities. In order to clarify the roles these factors play in the conduction mechanisms of nitrogen-doped ultrananocrystalline diamond (UNCD), Raman scattering, near edge x-ray absorption fine structure (NEXAFS), soft x-ray fluorescence (SXF), and secondary ion mass spectroscopy (SIMS) measurements were performed. Transmission electron microscopy analysis of nitrogen doped UNCD has previously indicated that the films are composed of crystalline diamond nano-grains with boundaries of amorphous carbon, and NEXAFS measurements reveal that the global amount of sp(2)-bonded carbon in these films increases slightly with nitrogen doping. The nitrogen content is quantified with high-resolution SIMS analysis, while NEXAFS and SXF indicates that the nitrogen exists primarily in tetrahedrally coordinated sites. These measurements indicate that the overall grain boundary volume of nitrogen-doped ultrananocrystalline diamond is increasing, while the grains themselves remain pure diamond. This supports our previously reported hypothesis that grain boundary conduction is the mechanism for the observed increase in conductivity in ultrananocrystalline diamond with nitrogen doping. (C) 2003 American Institute of Physics.
C1 Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Birrell, J (reprint author), Univ Illinois, Dept Mat Sci & Engn, 1304 W Green St, Urbana, IL 61801 USA.
EM carlisel@anl.gov
RI Gibson, Murray/E-5855-2013
OI Gibson, Murray/0000-0002-0807-6224
NR 41
TC 189
Z9 191
U1 3
U2 55
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 MAY 1
PY 2003
VL 93
IS 9
BP 5606
EP 5612
DI 10.1063/1.1564880
PG 7
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700096
ER

PT J
AU White, CW
   Withrow, SP
   Sorge, KD
   Meldrum, A
   Budai, JD
   Thompson, JR
   Boatner, LA
AF White, CW
   Withrow, SP
   Sorge, KD
   Meldrum, A
   Budai, JD
   Thompson, JR
   Boatner, LA
TI Oriented ferromagnetic Fe-Pt alloy nanoparticles produced in Al2O3 by
   ion-beam synthesis
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID PERPENDICULAR MAGNETIC-ANISOTROPY; GRANULAR THIN-FILMS; REDUCING
   ATMOSPHERES; IMPLANTED SAPPHIRE; AL-O; MICROSTRUCTURE; TEMPERATURE;
   IRON; TRANSFORMATION; FABRICATION
AB Oriented Fe1-xPtx nanoparticles have been formed in single-crystal Al2O3 host matrices by the sequential implantation of Fe and Pt ions followed by thermal annealing. For x in the range of similar to35-55 at. % Pt, these nanoparticles are in the chemically ordered tetragonal L1(0) structure of FePt and appear to be fully ordered. The nanoparticles are ferromagnetic, and the magnetic coercivity is a strong function of the alloy composition, reaching values in excess of 20 kOe for xsimilar to45%. The crystallographic orientation and morphology of the nanoparticles are strongly dependent on the implantation conditions. Under certain implantation conditions, a buried amorphous layer can be formed in the Al2O3 matrix which crystallizes during annealing giving rise to the formation of an interconnected network of large FePt particles with a single orientation. Oriented nanoparticles of Fe3Pt and FePt3 were also synthesized. The Fe3Pt and FePt3 particles have the ordered, cubic L1(2) structure with an order parameter of 0.5-0.8; and these particles also exhibit ferromagnetic behavior. The magnetic and structural properties of the Fe1-xPtx nanoparticles are compared to and contrasted with those of nanoparticles of Fe and Pt in Al2O3 that were also formed by ion-beam synthesis. Evidence for Al incorporation into the nanoparticles is also presented. (C) 2003 American Institute of Physics.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Knoxville, TN 37996 USA.
   Univ Alberta, Edmonton, AB T6G 2M7, Canada.
RP White, CW (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI Boatner, Lynn/I-6428-2013; Budai, John/R-9276-2016
OI Boatner, Lynn/0000-0002-0235-7594; Budai, John/0000-0002-7444-1306
NR 52
TC 32
Z9 32
U1 0
U2 11
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
   MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 1
PY 2003
VL 93
IS 9
BP 5656
EP 5669
DI 10.1063/1.1565691
PG 14
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700102
ER

PT J
AU Barabash, RI
   Ice, GE
   Tamura, N
   Valek, BC
   Bravman, JC
   Spolenak, R
   Patel, JR
AF Barabash, RI
   Ice, GE
   Tamura, N
   Valek, BC
   Bravman, JC
   Spolenak, R
   Patel, JR
TI Quantitative analysis of dislocation arrangements induced by
   electromigration in a passivated Al (0.5 wt % Cu) interconnect
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID X-RAY-DIFFRACTION; MICROBEAM DIFFRACTION; METAL LINES; DEFORMATION;
   ALUMINUM; CRYSTALS; TEXTURE; STRAIN; STRESS; WIRES
AB Electromigration during accelerated testing can induce plastic deformation in apparently undamaged Al interconnect lines as recently revealed by white beam scanning x-ray microdiffraction. In the present article, we provide a first quantitative analysis of the dislocation structure generated in individual micron-sized Al grains during an in situ electromigration experiment. Laue reflections from individual interconnect grains show pronounced streaking during the early stages of electromigration. We demonstrate that the evolution of the dislocation structure during electromigration is highly inhomogeneous and results in the formation of unpaired randomly distributed dislocations as well as geometrically necessary dislocation boundaries. Approximately half of all unpaired dislocations are grouped within the walls. The misorientation created by each boundary and density of unpaired individual dislocations is determined. The origin of the observed plastic deformation is considered in view of the constraints for dislocation arrangements under the applied electric field during electromigration. (C) 2003 American Institute of Physics.
C1 Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
   Adv Light Source, Berkeley, CA 94720 USA.
   Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
   Max Planck Inst Met Res, D-7056 Stuttgart, Germany.
   Stanford Synchrotron Radiat Labs, Stanford, CA 94309 USA.
RP Barabash, RI (reprint author), Oak Ridge Natl Lab, Div Met & Ceram, POB 2008, Oak Ridge, TN 37831 USA.
RI Spolenak, Ralph/A-1655-2008
NR 31
TC 21
Z9 21
U1 0
U2 4
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 MAY 1
PY 2003
VL 93
IS 9
BP 5701
EP 5706
DI 10.1063/1.1563033
PG 6
WC Physics, Applied
SC Physics
GA 668MA
UT WOS:000182296700108
ER

PT J
AU Braun, J
   Rocken, C
   Liljegren, J
AF Braun, J
   Rocken, C
   Liljegren, J
TI Comparisons of line-of-sight water vapor observations using the global
   positioning system and a pointing microwave radiometer
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID GPS METEOROLOGY; DELAYS; NETWORK; NOAA
AB Line-of-sight measurements of integrated water vapor from a global positioning system (GPS) receiver and a microwave radiometer are compared. These two instruments were collocated at the central facility of the Department of Energy's Atmospheric Radiation Measurement Program's Southern Great Plains region, near Lamont, Oklahoma. The comparison was made using 47 days of observations in May and June of 2000. Weather conditions during this time period were variable with total integrated water vapor ranging from less than 10 to more than 50 mm. To minimize errors in the microwave radiometer observations, observations were compared during conditions when the liquid water measured by the radiometer was less than 0.1 mm. The linear correlation of the observations between the two instruments is 0.99 with a root-mean-square difference of the GPS water vapor to a linear fit of the microwave radiometer of 1.3 mm. The results from these comparisons are used to evaluate the ability of networks of GPS receivers to measure instantaneous line-of-sight integrals of water vapor. A discussion and analysis is provided regarding the additional information of the water vapor field contained in these observations compared to time- and space-averaged zenith and gradient measurements.
C1 Univ Corp Atmospher Res, GPS Sci & Technol Grp, Boulder, CO 80307 USA.
   Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA.
RP Braun, J (reprint author), Univ Corp Atmospher Res, GPS Sci & Technol Grp, POB 3000, Boulder, CO 80307 USA.
RI Braun, John/B-2913-2010
OI Braun, John/0000-0002-6380-7739
NR 20
TC 26
Z9 33
U1 0
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0739-0572
J9 J ATMOS OCEAN TECH
JI J. Atmos. Ocean. Technol.
PD MAY
PY 2003
VL 20
IS 5
BP 606
EP 612
DI 10.1175/1520-0426(2003)20<606:COLOSW>2.0.CO;2
PG 7
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 671EJ
UT WOS:000182452100002
ER

PT J
AU Chain, P
   Lamerdin, J
   Larimer, F
   Regala, W
   Lao, V
   Land, M
   Hauser, L
   Hooper, A
   Klotz, M
   Norton, J
   Sayavedra-Soto, L
   Arciero, D
   Hommes, N
   Whittaker, M
   Arp, D
AF Chain, P
   Lamerdin, J
   Larimer, F
   Regala, W
   Lao, V
   Land, M
   Hauser, L
   Hooper, A
   Klotz, M
   Norton, J
   Sayavedra-Soto, L
   Arciero, D
   Hommes, N
   Whittaker, M
   Arp, D
TI Complete genome sequence of the ammonia-oxidizing bacterium and obligate
   chemolithoautotroph Nitrosomonas europaea
SO JOURNAL OF BACTERIOLOGY
LA English
DT Article
ID GRAM-NEGATIVE BACTERIA; HYDROXYLAMINE OXIDOREDUCTASE; NITRITE REDUCTASE;
   TRANSCRIPTIONAL REGULATION; METHYLOCOCCUS-CAPSULATUS;
   SACCHAROMYCES-CEREVISIAE; PSEUDOMONAS-AERUGINOSA; ACID BIOSYNTHESIS;
   ESCHERICHIA-COLI; OXIDATIVE STRESS
AB Nitrosomonas europaea (ATCC 19718) is a gram-negative obligate chemolithoautotroph that can derive all its energy and reductant for growth from the oxidation of ammonia to nitrite. Nitrosomonas europaea participates in the biogeochemical N cycle in the process of nitrification. Its genome consists of a single circular chromosome of 2,812,094 bp. The GC skew analysis indicates that the genome is divided into two unequal replichores. Genes are distributed evenly around the genome, with similar to47% transcribed from one strand and similar to53% transcribed from the complementary strand. A total of 2,460 protein-encoding genes emerged from the modeling effort, averaging 1,011 bp in length, with intergenic regions averaging 117 bp. Genes necessary for the catabolism of ammonia, energy and reductant generation, biosynthesis, and CO2 and NH3 assimilation were identified. In contrast, genes for catabolism of organic compounds are limited. Genes encoding transporters for inorganic ions were plentiful, whereas genes encoding transporters for organic molecules were scant. Complex repetitive elements constitute ca. 5% of the genome. Among these are 85 predicted insertion sequence elements in eight different families. The strategy of N. europaea to accumulate Fe from the environment involves several classes of Fe receptors with more than 20 genes devoted to these receptors. However, genes for the synthesis of only one siderophore, citrate, were identified in the genome. This genome has provided new insights into the growth and metabolism of ammonia-oxidizing bacteria.
C1 Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 USA.
   Joint Genome Inst, Walnut Creek, CA 94598 USA.
   Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Univ Minnesota, Minneapolis, MN 55455 USA.
   Univ Louisville, Louisville, KY 40208 USA.
   Utah State Univ, Logan, UT 84322 USA.
RP Arp, D (reprint author), Oregon State Univ, Dept Bot & Plant Pathol, Corvallis, OR 97331 USA.
RI Land, Miriam/A-6200-2011; Hauser, Loren/H-3881-2012; chain,
   patrick/B-9777-2013; Norton, Jeanette/G-2633-2011
OI Land, Miriam/0000-0001-7102-0031; Norton, Jeanette/0000-0002-6596-8691
NR 83
TC 306
Z9 747
U1 9
U2 87
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0021-9193
J9 J BACTERIOL
JI J. Bacteriol.
PD MAY
PY 2003
VL 185
IS 9
BP 2759
EP 2773
DI 10.1128/JB.185.9.2759-2773.2003
PG 15
WC Microbiology
SC Microbiology
GA 671HP
UT WOS:000182459500011
PM 12700255
ER

PT J
AU Faulon, JL
   Visco, DP
   Pophale, RS
AF Faulon, JL
   Visco, DP
   Pophale, RS
TI The signature molecular descriptor. 1. Using extended valence sequences
   in QSAR and QSPR studies
SO JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
LA English
DT Article
ID HIV-1 PROTEASE INHIBITORS; STRUCTURE-PROPERTY RELATIONSHIP; QUANTITATIVE
   STRUCTURE; TOPOLOGICAL INDEXES; CHEMICAL GRAPHS; BOILING POINTS; WIENER
   INDEX; INVARIANTS; BINDING; DESIGN
AB We present a new descriptor named signature based on extended valence sequence. The signature of an atom is a canonical representation of the atom's environment up to a predefined height h. The signature of a molecule is a vector of occurrence numbers of atomic signatures. Two QSAR and QSPR models based on signature are compared with models obtained using popular molecular 2D descriptors taken from a commercially available software (Molconn-Z). One set contains the inhibition concentration at 50% for 121 HIV-1 protease inhibitors, while the second set contains 12865 octanol/water partitioning coefficients (Log P). For both data sets, the models created by signature performed comparable to those from the commercially available descriptors in both correlating the data and in predicting test set values not used in the parametrization. While probing signature's QSAR and QSPR performances, we demonstrates that for any given molecule of diameter D, there is a molecular signature of height h less than or equal to D+1, from which any 2D descriptor can be computed. As a consequence of this finding any QSAR or QSPR involving 2D descriptors can be replaced with a relationship involving occurrence number of atomic signatures.
C1 Sandia Natl Labs, Livermore, CA 94551 USA.
   Tennessee Technol Univ, Dept Chem Engn, Cookeville, TN 38502 USA.
RP Sandia Natl Labs, POB 969,MS 9951, Livermore, CA 94551 USA.
EM jfaulon@sandia.gov
NR 61
TC 113
Z9 115
U1 2
U2 17
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0095-2338
J9 J CHEM INF COMP SCI
JI J. Chem. Inf. Comput. Sci.
PD MAY-JUN
PY 2003
VL 43
IS 3
BP 707
EP 720
DI 10.1021/ci020345w
PG 14
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
   Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA 684LR
UT WOS:000183209300001
PM 12767129
ER

PT J
AU Faulon, JL
   Churchwell, CJ
   Visco, DP
AF Faulon, JL
   Churchwell, CJ
   Visco, DP
TI The signature molecular descriptor. 2. Enumerating molecules from their
   extended valence sequences
SO JOURNAL OF CHEMICAL INFORMATION AND COMPUTER SCIENCES
LA English
DT Article
ID ACTIVITY RELATIONSHIP MODELS; INFORMATION-TRANSFER; TOPOLOGICAL INDEXES;
   GENETIC ALGORITHM; GRAPHS; DESIGN; DEGENERACY; FAMILIES; CONSTRUCTION;
   DATABASE
AB We present a new algorithm that enumerates molecular structures matching a predefined extended valence sequence or signature. The algorithm can construct molecular structures composed of about 50 non-hydrogen atoms in CPU seconds time scale. The algorithm is run to produce all molecular structures matching the binding affinities (IC50) of some HIV-1 protease inhibitors. The algorithm is also used to compute the degeneracy, or the number of molecular structures, corresponding to a given signature. Signature degeneracy is systematically studied for varying signature heights on four molecular series, alkanes, alcohols, fullerene-type structures, and peptides. Signature degeneracy is compared with similar results obtained with popular topological indices (TIs). As a general rule, we find that signature degeneracy decreases as the signature height increases. We also find that alkanes, alcohols, and fullerene-type structures comprising n non-hydrogen atoms are uniquely characterized by signatures of height n/4, while peptides up to 4000 amino acids can be singled out with signatures of heights as small as 2 and 3.
C1 Sandia Natl Labs, Livermore, CA 94551 USA.
   Tennessee Technol Univ, Dept Chem Engn, Cookeville, TN 38505 USA.
RP Faulon, JL (reprint author), Sandia Natl Labs, POB 969,MS 9951, Livermore, CA 94551 USA.
NR 36
TC 83
Z9 84
U1 0
U2 7
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0095-2338
J9 J CHEM INF COMP SCI
JI J. Chem. Inf. Comput. Sci.
PD MAY-JUN
PY 2003
VL 43
IS 3
BP 721
EP 734
DI 10.1021/ci020346o
PG 14
WC Chemistry, Multidisciplinary; Computer Science, Information Systems;
   Computer Science, Interdisciplinary Applications
SC Chemistry; Computer Science
GA 684LR
UT WOS:000183209300002
PM 12767130
ER

PT J
AU Liu, P
   Rodriguez, JA
   Hou, H
   Muckerman, JT
AF Liu, P
   Rodriguez, JA
   Hou, H
   Muckerman, JT
TI Chemical reactivity of metcar Ti8C12, nanocrystal Ti14C13 and a bulk
   TiC(001) surface: A density functional study
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID AB-INITIO SCF; ELECTRONIC-STRUCTURE; CLUSTERS; ADSORPTION; MOLECULES;
   M8C12; METALLOCARBOHEDRENES; SPECTROSCOPY; CHEMISTRY; ENERGY
AB Density functional calculations show that the "magic" structures of titanium carbide nanoparticles display an unexpected high reactivity toward CO, NH3, and H2O when compared to the bulk TiC(001) surface. In spite of the large C/Ti ratio in Ti8C12, our results show that the bulk surface is much more tightly bonded than the nanocluster, and thus the nanocluster has a much higher chemical activity. (C) 2003 American Institute of Physics.
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RP Rodriguez, JA (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RI Muckerman, James/D-8752-2013
NR 34
TC 45
Z9 45
U1 1
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
   MELVILLE, NY 11747-4501 USA
SN 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAY 1
PY 2003
VL 118
IS 17
BP 7737
EP 7740
DI 10.1063/1.1570397
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 668DY
UT WOS:000182276100002
ER

PT J
AU Jellinek, J
   Acioli, PH
AF Jellinek, J
   Acioli, PH
TI Converting Kohn-Sham eigenenergies into electron binding energies
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID DENSITY-FUNCTIONAL THEORY; SELF-INTERACTION CORRECTION; TO-METAL
   TRANSITION; PHOTOELECTRON-SPECTROSCOPY; MAGNESIUM CLUSTERS; REMOVAL
   ENERGIES; APPROXIMATION; EIGENVALUE; BEHAVIOR; NEON
AB A new accurate scheme for converting the Kohn-Sham eigenenergies into electron binding energies is formulated. The accuracy of the scheme is illustrated in applications to ten atoms and three molecules. (C) 2003 American Institute of Physics.
C1 Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
   Univ Brasilia, Inst Fis, BR-70919970 Brasilia, DF, Brazil.
RP Argonne Natl Lab, Div Chem, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 33
TC 23
Z9 24
U1 0
U2 5
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAY 1
PY 2003
VL 118
IS 17
BP 7783
EP 7796
DI 10.1063/1.1560134
PG 14
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 668DY
UT WOS:000182276100008
ER

PT J
AU Chialvo, AA
   Simonson, JM
AF Chialvo, AA
   Simonson, JM
TI Aqueous Na+Cl- pair association from liquidlike to steamlike densities
   along near-critical isotherms
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; SODIUM-CHLORIDE SOLUTIONS;
   HIGH-TEMPERATURE; SUPERCRITICAL WATER; ION-PAIR; NACL SOLUTIONS; GAS
   PHASE; THERMODYNAMICS; CONDUCTANCE; VAPOR
AB An extensive molecular-based study of ion-pair formation in near-critical dilute aqueous NaCl solutions is performed along three near- (super- and sub-) critical isotherms and from liquidlike to steamlike densities. The study encompasses the determination of the ion-pair association constant via potential of mean force calculations. The main goal is to find answers to some relevant questions regarding the thermodynamic and corresponding microscopic behavior of the ion-pair formation at steamlike densities, where experimental data are extremely difficult to obtain accurately. A direct comparison is made between simulation, theoretical developments, and experiment to aid the interpretation of experimental data and their macroscopic modeling. (C) 2003 American Institute of Physics.
C1 Oak Ridge Natl Lab, Div Chem Sci, Aqueous Chem & Geochem Grp, Oak Ridge, TN 37831 USA.
RP Chialvo, AA (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Aqueous Chem & Geochem Grp, Oak Ridge, TN 37831 USA.
OI Chialvo, Ariel/0000-0002-6091-4563
NR 78
TC 33
Z9 33
U1 0
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 0021-9606
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAY 1
PY 2003
VL 118
IS 17
BP 7921
EP 7929
DI 10.1063/1.1564052
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 668DY
UT WOS:000182276100025
ER

PT J
AU Volkow, ND
   Fowler, JS
   Wang, GJ
AF Volkow, ND
   Fowler, JS
   Wang, GJ
TI The addicted human brain: insights from imaging studies
SO JOURNAL OF CLINICAL INVESTIGATION
LA English
DT Editorial Material
ID ORBITOFRONTAL CORTEX; COCAINE ABUSERS; DOPAMINE RELEASE; DRUG-ADDICTION;
   METHAMPHETAMINE ABUSERS; MOLECULAR MECHANISMS; NUCLEUS-ACCUMBENS;
   DECISION-MAKING; REWARD; ACTIVATION
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.
RP Volkow, ND (reprint author), Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
FU NIAAA NIH HHS [AA/0D-09481]; NIDA NIH HHS [DA-09490, DA-06278, DA-06891]
NR 62
TC 348
Z9 375
U1 4
U2 30
PU AMER SOC CLINICAL INVESTIGATION INC
PI ANN ARBOR
PA 35 RESEARCH DR, STE 300, ANN ARBOR, MI 48103 USA
SN 0021-9738
J9 J CLIN INVEST
JI J. Clin. Invest.
PD MAY
PY 2003
VL 111
IS 10
BP 1444
EP 1451
DI 10.1172/JCI200318533
PG 8
WC Medicine, Research & Experimental
SC Research & Experimental Medicine
GA 680KK
UT WOS:000182976400002
PM 12750391
ER

PT J
AU Schwarz, UD
AF Schwarz, UD
TI A generalized analytical model for the elastic deformation of an
   adhesive contact between a sphere and a flat surface
SO JOURNAL OF COLLOID AND INTERFACE SCIENCE
LA English
DT Article
DE Hertz model; adhesion; adhesive contacts; JKR-DMT transition; contact
   mechanics; Maugis-Dugdale model; sphere-plane contact
ID ATOMIC-FORCE-MICROSCOPE; JKR-DMT TRANSITION; MOLECULAR FORCES; RIGID
   PLANE; FRICTION; PARTICLES; STICKING; AREA; LOAD
AB A new method to calculate the elastic deformation of a sphere on a flat surface is presented. The model considers the influence of short-range as well as long-range attractive forces both inside and outside the actual contact area. In contrast to earlier models, this theory describes the nature of these deformations in the intermediate regime between the so-called JKR and DMT limits by simple analytic expressions. Equations for the calculation of the contact radius, the deformation, and the pressure distribution are given. In all equations, the critical force that might vary between the limiting values found in the DMT and the JKR model acts as transition parameter. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 Univ Calif Berkeley, Div Sci Mat, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Schwarz, UD (reprint author), Yale Univ, Dept Mech Engn, POB 208284, New Haven, CT 06520 USA.
NR 38
TC 134
Z9 135
U1 6
U2 45
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9797
J9 J COLLOID INTERF SCI
JI J. Colloid Interface Sci.
PD MAY 1
PY 2003
VL 261
IS 1
BP 99
EP 106
DI 10.1016/S0021-9797(03)00049-3
PG 8
WC Chemistry, Physical
SC Chemistry
GA 677JH
UT WOS:000182803300012
PM 12725829
ER

PT J
AU Miller, TC
   Mann, G
   Havrilla, GJ
   Wells, CA
   Warner, BP
   Baker, RT
AF Miller, TC
   Mann, G
   Havrilla, GJ
   Wells, CA
   Warner, BP
   Baker, RT
TI Micro-X-ray fluorescence as a general high-throughput screening method
   for catalyst discovery and small molecule recognition
SO JOURNAL OF COMBINATORIAL CHEMISTRY
LA English
DT Article
ID COMBINATORIAL CHEMISTRY; PHOTOELECTRON-SPECTROSCOPY; PARALLEL ANALYSIS;
   LIBRARY MEMBERS; SPECTROMETRY
AB A powerful high-throughput screening technique is described for the rapid screening of bead-based libraries for catalyst discovery and molecular recognition. Micro-X-ray fluorescence (MXRF) screens materials for elemental composition with mesoscale analysis. This method is nondestructive and requires minimal sample preparation and no special tags for analysis, and the screening time is dependent on the desired sensitivity. The speed, sensitivity, and simplicity of MXRF as a high-throughput screening technique were applied to screen bead-based libraries of oligopeptides for phosphate hydrolysis catalysts and molecular recognition of selective receptors for the degradation products and analogues of chemical warfare agents. This paper demonstrates the analytical or HTS capability of MXRF for combinatorial screening. It is meant only to show the capabilities of MXRF and is not meant as an exhaustive study of the catalyst and molecular recognition systems presented.
C1 Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
RP Havrilla, GJ (reprint author), Los Alamos Natl Lab, Div Chem, Mail Stop K484, Los Alamos, NM 87545 USA.
NR 23
TC 17
Z9 17
U1 1
U2 5
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-4766
J9 J COMB CHEM
JI J. Comb. Chem.
PD MAY-JUN
PY 2003
VL 5
IS 3
BP 245
EP 252
DI 10.1021/cc020102g
PG 8
WC Chemistry, Applied; Chemistry, Medicinal; Chemistry, Multidisciplinary
SC Chemistry; Pharmacology & Pharmacy
GA 731XE
UT WOS:000185911100011
PM 12739940
ER

PT J
AU Hadjiconstantinou, NG
   Garcia, AL
   Bazant, MZ
   He, G
AF Hadjiconstantinou, NG
   Garcia, AL
   Bazant, MZ
   He, G
TI Statistical error in particle simulations of hydrodynamic phenomena
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE statistical error; sampling; fluctuations; Monte Carlo; molecular
   dynamics; hydrodynamics
ID MONTE-CARLO; EQUATION; ALGORITHM; STATE
AB We present predictions for the statistical error due to finite sampling in the presence of thermal fluctuations in molecular simulation algorithms. Specifically, we establish how these errors depend on Mach number, Knudsen number, number of particles, etc. Expressions for the common hydrodynamic variables of interest such as flow velocity, temperature, density, pressure, shear stress, and heat flux are derived using equilibrium statistical mechanics. Both volume-averaged and surface-averaged quantities are considered. Comparisons between theory and computations using direct simulation Monte Carlo for dilute gases, and molecular dynamics for dense fluids, show that the use of equilibrium theory provides accurate results. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 MIT, Dept Engn Mech, Cambridge, MA 02139 USA.
   Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA.
   MIT, Dept Math, Cambridge, MA 02139 USA.
   San Jose State Univ, Dept Phys, San Jose, CA 95192 USA.
RP Hadjiconstantinou, NG (reprint author), MIT, Dept Engn Mech, 77 Massachusetts Ave, Cambridge, MA 02139 USA.
NR 23
TC 142
Z9 143
U1 0
U2 8
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD MAY 1
PY 2003
VL 187
IS 1
BP 274
EP 297
DI 10.1016/S0021-9991(03)00099-8
PG 24
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 673XE
UT WOS:000182605500013
ER

PT J
AU Csaki, C
   Kaloper, N
   Peloso, M
   Terning, J
AF Csaki, C
   Kaloper, N
   Peloso, M
   Terning, J
TI Super-GZK photons from photon-axion mixing
SO JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
LA English
DT Article
DE cosmic rays; axions; high energy photons
ID ENERGY COSMIC-RAYS; ZATSEPIN-KUZMIN CUTOFF; DARK-MATTER; NEUTRINOS;
   SPECTRUM; PROPAGATION; ABSORPTION; PARTICLES
AB We show that photons with energies above the GZK cutoff can reach us from very distant sources if they mix with light axions in extragalactic magnetic fields. The effect which enables this is the conversion of photons into axions, which are sufficiently weakly coupled to travel large distances unimpeded. These axions then convert back into high energy photons close to the Earth. We show that photon - axion mixing facilitates the survival of super-GZK photons most efficiently with a photon - axion coupling scale M greater than or similar to 10(11) GeV, which is in the same range as the scale for the photon - axion mixing explanation for the dimming of supernovae without cosmic acceleration. We discuss possible observational consequences of this effect.
C1 Cornell Univ, Newman Lab Elementary Particle Phys, Ithaca, NY 14853 USA.
   Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
   Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada.
   Los Alamos Natl Lab, Theory Div T8, Los Alamos, NM 87545 USA.
RP Csaki, C (reprint author), Cornell Univ, Newman Lab Elementary Particle Phys, Ithaca, NY 14853 USA.
EM csaki@mail.lns.cornell.edu; kaloper@physics.ucdavis.edu;
   peloso@cita.utoronto.ca; terning@lanl.gov
NR 46
TC 39
Z9 39
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1475-7516
J9 J COSMOL ASTROPART P
JI J. Cosmol. Astropart. Phys.
PD MAY
PY 2003
IS 5
AR 005
PG 16
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 729EM
UT WOS:000185759700005
ER

PT J
AU Chang, KC
   Bentley, J
   Porter, LM
AF Chang, KC
   Bentley, J
   Porter, LM
TI Nanoscale characterization of the silicon dioxide-silicon carbide
   interface using elemental mapping by energy-filtered transmission
   electron microscopy
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article
DE silicon carbide (SiC); oxide; interface; excess carbon; transmission
   electron microscopy (TEM); energy-filtered transmission electron
   microscopy (EFTEM)
ID OXIDATION; SPECTROSCOPY; STATES
AB Energy-filtered transmission electron microscopy (EFTEM) was used to study 6H-SiC/SiO2 interfaces produced by thermal oxidation as a function of the oxidation conditions. Elemental maps of C and Si were used to calculate C-to-Si concentration profiles across the interfaces. Enhanced C/Si concentrations (up to similar to 35%) were observed at distinct regions in samples oxidized at 1100degreesC for 4 h in a wet ambient. The data from a number of randomly selected regions indicate that re-oxidation at 950degreesC for 3 h significantly reduced, but did not eliminate, the amount of excess interfacial carbon.
C1 Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
   Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
RP Chang, KC (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
RI Porter, Lisa/C-9729-2010
OI Porter, Lisa/0000-0002-0970-0420
NR 18
TC 12
Z9 12
U1 0
U2 0
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 MAY
PY 2003
VL 32
IS 5
BP 464
EP 469
DI 10.1007/s11664-003-0179-y
PG 6
WC Engineering, Electrical & Electronic; Materials Science,
   Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA 676UE
UT WOS:000182770100034
ER

PT J
AU Berisford, YC
   Bush, PB
   Blake, JI
   Bayer, CL
AF Berisford, YC
   Bush, PB
   Blake, JI
   Bayer, CL
TI Use of mini-sprinklers to strip trichloroethylene and
   tetrachloroethylene from contaminated ground water
SO JOURNAL OF ENVIRONMENTAL QUALITY
LA English
DT Article
ID TCE; DEHALOGENATION; PERMANGANATE; REMEDIATION; OXIDATION; REMOVAL; PCE
AB Three low-volume mini-sprinklers were tested for their efficacy to strip trichloroethylene (TCE) and tetrachloroethylene (PCE) from water. Deionized water spiked with TCE and PCE was pumped for approximately 1 h at 0.19 to 0.21 MPa (28 to 30 lb m(-2)) through a mini-sprinkler supported on top of a 1.8-m-tall riser. Water was collected in collection vessels at 0.61 and 1.22 in above the ground on support columns that were spaced at 0.61-m intervals from the riser base, and samples were composited per height and distance from the riser. Overall, air-stripping reduced dissolved concentrations of TCE and PCE by 99.1 to 100 and 96.9 to 100%, respectively, from mean influent dissolved concentrations of 466 to 1675 mug L-1 TCE and 206 to 940 mug L-1 PCE. In terms of mass removed, the mini-sprinklers removed TCE and PCE at a rate of approximately 1400 to 1700 and 700 to 900 mug L-1, respectively, over a 1-h test period. Mini-sprinklers offer the advantages of (i) easy setup in series that can be used on practically any terrain; (ii) operation over a long period of time that does not threaten aquifer depletion; (iii) use in small or confined aquifers in which the capacity is too low to support large irrigation or purging systems'. and (iv) use in forests in which the small, low-impact droplets of the mini-sprinklers do not damage hark and in which trees can help manage (via evapotranspiration) excess waste water.
C1 Univ Georgia, Pesticide & Hazardous Wastes Lab, Agr & Environm Serv Labs, Athens, GA 30605 USA.
   US Forest Serv, Savannah River Site, Ellenton, SC 29809 USA.
   Bechtel Savannah River Inc, Aiken, SC 29808 USA.
RP Bush, PB (reprint author), Univ Georgia, Pesticide & Hazardous Wastes Lab, Agr & Environm Serv Labs, 2300 Coll Stn Rd, Athens, GA 30605 USA.
EM pbush@arches.uga.edu
NR 33
TC 0
Z9 0
U1 1
U2 3
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 MAY-JUN
PY 2003
VL 32
IS 3
BP 801
EP 815
PG 15
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 680UN
UT WOS:000182997100007
PM 12809281
ER

PT J
AU DeVolder, PS
   Brown, SL
   Hesterberg, D
   Pandya, K
AF DeVolder, PS
   Brown, SL
   Hesterberg, D
   Pandya, K
TI Metal bioavailability and speciation in a wetland tailings repository
   amended with biosolids compost, wood ash, and sulfate
SO JOURNAL OF ENVIRONMENTAL QUALITY
LA English
DT Article
ID ACID-VOLATILE SULFIDE; RAY-ABSORPTION-SPECTROSCOPY; LABORATORY
   EVALUATION; CONTAMINATED SOIL; ZINC SPECIATION; WATER INTERFACE;
   SEDIMENTS; LEAD; TOXICITY; EXTRACTION
AB Lead poisoning of waterfowl from direct ingestion of wetland mine tailings has been reported at the Coeur d'Alene River basin in Idaho. A greenhouse study was conducted to evaluate the effects of surface applications of amendments on lead bioavailability in the tailings. Treatments included sediment only, and sediment with three different surface amendments: (i) biosolids compost plus wood ash, (ii) compost + wood ash + a low SO(4)(2-) addition as K(2)SO(4), and (iii) compost + wood ash + a high SO(4)(2-) addition. Measured variables included growth and tissue Pb, Zn, and Cd concentration of arrowhead (Sagittaria latifolia Willd.) and cattail (Typha latifolia L.) and soil pH, redox potential (Eh), pore water Pb, Pb speciation by X-ray absorption spectroscopy, and in vitro Pb bioavailability. The compost + ash amendment alleviated phytotoxicity for both plant species. Bioavailability of Pb as measured by a rapid in vitro extract decreased by 24 to 34% (over control) in the tailings directly below the amendment layer in the compost + SO(4) treatments. The ratio of acid volatile sulfide (AVS) to simultaneously extracted metals (SEM) also indicated a reduction in Pb bioavailability (1:40 control, 1:20 compost, 1:8 compost + low SO(4), and 1:3 compost + high SO(4)). Extended X-ray adsorption fine structure (EXAFS) and X-ray absorption near edge structure (XANES) spectroscopy data indicated that lead sulfide was greater after 99 d in the treatments that included additions of sulfate. These results indicated that, under reducing conditions, surface amendments of compost + wood ash (with or without sulfate) decreased the bioavailability of Pb in metal-contaminated mine tailings.
C1 Univ Washington, Coll Forest Resources, Seattle, WA 98195 USA.
   Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
   N Carolina State Univ, Dept Soil Sci, Raleigh, NC 27695 USA.
RP Brown, SL (reprint author), Univ Washington, Coll Forest Resources, Box 352100, Seattle, WA 98195 USA.
EM slb@u.washington.edu
NR 50
TC 27
Z9 27
U1 4
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 MAY-JUN
PY 2003
VL 32
IS 3
BP 851
EP 864
PG 14
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 680UN
UT WOS:000182997100012
PM 12809286
ER

PT J
AU Sowder, AG
   Bertsch, PM
   Morris, PJ
AF Sowder, AG
   Bertsch, PM
   Morris, PJ
TI Partitioning and availability of uranium and nickel in contaminated
   riparian sediments
SO JOURNAL OF ENVIRONMENTAL QUALITY
LA English
DT Article
ID HYDROUS IRON-OXIDE; X-RAY ABSORPTION; SEQUENTIAL EXTRACTIONS;
   HYDROXYAPATITE ADDITION; SURFACE WATERS; SAVANNA RIVER; HEAVY-METALS;
   TRACE-METALS; SOILS; NI
AB The effects of iron oxides and organic matter on the partitioning and chemical lability of U and Ni were examined for contaminated riparian sediments from the U.S. Department of Energy's Savannah River Site. In sequential extractions of four sediments that ranged from 12.7 to 82.2 g kg(-1) in organic carbon, U was found almost exclusively in moderately labile fractions (93% in acid-soluble + organically bound). Nickel was distributed across all operationally defined fractions, including substantial amounts in the very labile fractions (4-15% in water-soluble + exchangeable), noncrystalline and crystalline iron oxides (38-49%), and in the nonlabile residual fraction (25-34%). Aqueous U concentrations in 1:1 sediment-water extracts were highly correlated to dissolved organic carbon (DOC) (R-2 = 0.96; p < 0.0001) and ranged from 29 to 410 mug L-1. Aqueous concentrations of Ni exceeded U by two to three orders of magnitude (124-2227 mug L-1) but were not correlated with DOC (R-2 = 0.04; p = 0.53). Partitioning and solubility trends suggest that Ni availability is controlled primarily by iron-oxide phases, whereas U availability is dominated by naturally occurring organic carbon. Discrete mineral phases were also identified as nonlabile reservoirs of anthropogenic metals. In spite of comparably high sediment concentrations, Ni appears to be significantly more available than U in riparian sediments and therefore warrants greater consideration in terms of environmental consequences (i.e., transport, biological uptake, and toxicity).
C1 Univ Georgia, Savannah River Ecol Lab, Aiken, SC 29802 USA.
   Med Univ S Carolina, Charleston, SC 29425 USA.
RP Bertsch, PM (reprint author), Univ Georgia, Savannah River Ecol Lab, Drawer E, Aiken, SC 29802 USA.
NR 94
TC 34
Z9 34
U1 1
U2 14
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 MAY-JUN
PY 2003
VL 32
IS 3
BP 885
EP 898
PG 14
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 680UN
UT WOS:000182997100015
PM 12809289
ER

PT J
AU Walsh, PJ
   Mayer, GD
   Medina, M
   Bernstein, ML
   Barimo, JF
   Mommsen, TP
AF Walsh, PJ
   Mayer, GD
   Medina, M
   Bernstein, ML
   Barimo, JF
   Mommsen, TP
TI A second glutamine synthetase gene with expression in the gills of the
   gulf toadfish (Opsanus beta)
SO JOURNAL OF EXPERIMENTAL BIOLOGY
LA English
DT Article
DE glutamine synthetase; toadfish; ureotely; ornithine-urea cycle; ammonia
   detoxification; Opsanus beta; ammonia excretion; gill; ORF; UTR
ID PULSATILE UREA EXCRETION; CARBAMOYL-PHOSPHATE; NITROGEN-METABOLISM;
   BOSTRICHTHYS-SINENSIS; BATRACHOIDID FISHES; MESSENGER-RNA; LIVER;
   MUSCLE; CYCLE; PURIFICATION
AB We characterized the expression of the nitrogen metabolism enzyme glutamine synthetase [GSase; L-glutamate: ammonia ligase (ADP-forming), E.C. 6.3.1.2] in tissues of the gulf toadfish Opsanus beta subjected to unconfined (ammonotelic) and confined (ureotelic) conditions. Enzymological results demonstrate that mass-specific GSase activities rank, in the order of brain > liver > stomach approximate to kidney > intestine > gill > heart/spleen > muscle. When tissue mass is used to calculate a glutamine synthetic potential, the liver has the greatest, followed by muscle > stomach and intestine, with minor. contributions from the remaining tissues. Additionally, during confinement stress, GSase activity increases significantly only in liver (fivefold) and muscle (twofold), tissues that previously showed significant expression of the other enzymes of urea synthesis. Western analyses of samples on SDS gels demonstrated that GSase-specific protein content reflected enzyme activity, and all tissues except muscle had a single, similarly sized GSase subunit of 49.4 kDa; muscle showed staining of two bands of 36.8 and 98.9 kDa, which may possibly result from another gene product or post-translational modification.
   RT-PCR and RACE-PCR revealed the presence of a second GSase cDNA from gill tissue that shares only 73% nucleotide and amino acid sequence similarity with the GSase cDNA previously cloned from liver, and that lacks a mitochondrial leader-targeting sequence. RT-PCR and restriction digestion experiments demonstrated that mRNA from the original 'liver' GSase is expressed in all tissues examined (liver, gill, stomach, intestine, kidney, brain and muscle), whereas the new 'gill' form shows expression primarily, in the gill. Gill GSase activity shows apparently exclusive expression in the soluble compartment, while other tissues expressing the 'liver' form show both cytoplasmic and mitochondrial activities.
   Phylogenetic analysis of a number of GSases demonstrates that the toadfish gill GSase has a greater affinity for a clade that includes the Xenopus GSase genes and one of two Fugu GSase genes, than it has for a clade containing the toadfish liver GSase and other described teleost GSase genes. The results are discussed in the context of a prior hypothesis on an ammonia-trapping mechanism in the gill of the toadfish.
C1 Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, NIEHS, Marine & Freshwater Biomed Sci Ctr, Miami, FL 33149 USA.
   Joint Genome Inst, Genomic Divers Lab, Walnut Creek, CA 94598 USA.
   Univ Victoria, Dept Biochem & Microbiol, Victoria, BC, Canada.
RP Walsh, PJ (reprint author), Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, NIEHS, Marine & Freshwater Biomed Sci Ctr, 4600 Rickenbacker Causeway, Miami, FL 33149 USA.
RI Mayer, Gregory/K-4496-2012; Mayer, Gregory/A-8459-2017
OI Mayer, Gregory/0000-0002-2652-9856; Mayer, Gregory/0000-0002-2652-9856
FU NIEHS NIH HHS [ES07320, ES 05705]
NR 35
TC 35
Z9 37
U1 0
U2 4
PU COMPANY OF BIOLOGISTS LTD
PI CAMBRIDGE
PA BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE CB4 4DL,
   CAMBS, ENGLAND
SN 0022-0949
J9 J EXP BIOL
JI J. Exp. Biol.
PD MAY
PY 2003
VL 206
IS 9
BP 1523
EP 1533
DI 10.1242/jeb.00251
PG 11
WC Biology
SC Life Sciences & Biomedicine - Other Topics
GA 677JQ
UT WOS:000182804100019
PM 12654891
ER

PT J
AU Gemmen, RS
AF Gemmen, RS
TI Analysis for the effect of inverter ripple current on fuel cell
   operating condition
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
ID DEGRADATION; MEMBRANE; CATHODE; TRANSPORT; ANODES; MODEL; LAYER
AB The effect of inverter ripple current on fuel cell stack performance and stack lifetime remains uncertain. This paper provides a first attempt to examine the impact of inverter load dynamics on the fuel cell. Since reactant utilization is known to impact the mechanical nature of a fuel cell, it is suggested that the varying reactant conditions surrounding the cell govern, at least in part, the lifetime of the cells, This paper investigates these conditions through the use of a dynamic model for the bulk conditions within the stack, as well as a one-dimensional model for the detailed mass transport occurring within the electrode of a cell. These two independent modeling approaches are used to verify their respective numerical procedures. In this work the inverter load is imposed as a boundary condition to the models. Results show the transient behavior of the reactant concentrations within the stack, and of the mass diffusion within the electrode under inverter loads, with frequencies between 30 Hz and 1250 Hz.
C1 Natl Energy Technol Ctr, Gas Energy Technol Ctr, Morgantown, WV 26507 USA.
RP Gemmen, RS (reprint author), Natl Energy Technol Ctr, Gas Energy Technol Ctr, Morgantown, WV 26507 USA.
NR 30
TC 105
Z9 108
U1 0
U2 4
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 MAY
PY 2003
VL 125
IS 3
BP 576
EP 585
DI 10.1115/1.1567307
PG 10
WC Engineering, Mechanical
SC Engineering
GA 692EC
UT WOS:000183646900019
ER

PT J
AU Baltz, EA
   Murayama, H
AF Baltz, EA
   Murayama, H
TI Gravitino warm dark matter with entropy production
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE supersymmetry phenomenology; dark matter
ID DYNAMICAL SUPERSYMMETRY BREAKING; GAUGE MEDIATION; MODELS; UNIVERSE
AB Gravitinos with a mass in the keV range are an interesting candidate for warm dark matter. Recent measurements of the matter density of the universe and of cosmic structures at the dwarf galaxy scale rule out the simplest gravitino models with thermal freeze-out. We construct a model where the decay of the messenger particles that transmit the supersymmetry breaking to the observable sector generates the required entropy to dilute the gravitino relic density by the required factor of a few to come in line with observations. The model is natural, and requires only that the coupling of the messenger sector to the standard model be set so that the decay happens at the appropriate time.
C1 Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Theory Grp, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
RP Baltz, EA (reprint author), Columbia Univ, Columbia Astrophys Lab, 538 W 120th St,Mail Code 5247, New York, NY 10027 USA.
EM eabaltz@physics.columbia.edu; murayama@lbl.gov
RI Murayama, Hitoshi/A-4286-2011
NR 23
TC 42
Z9 42
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 MAY
PY 2003
IS 5
AR 067
PG 9
WC Physics, Particles & Fields
SC Physics
GA 717HU
UT WOS:000185083300067
ER

PT J
AU Bena, L
   Murayama, H
   Tatar, R
AF Bena, L
   Murayama, H
   Tatar, R
TI Matrix model description of baryonic deformations
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE string duality; supersymmetric effective theories
ID DYNAMICAL SUPERSYMMETRY BREAKING; EXACT SUPERPOTENTIALS; GAUGE-THEORY;
   LARGE N; GEOMETRIC TRANSITION; TOPOLOGICAL STRINGS; DUALITIES; SPACE;
   VACUA
AB We investigate supersymmetric QCD with N-c + 1 flavors using an extension of the recently proposed relation between gauge theories and matrix models. The impressive agreement between the two sides provides a beautiful confirmation of the extension of the gauge theory-matrix model relation to this case.
C1 Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
   Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
RP Bena, L (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
EM iosif@physics.ucla.edu; murayama@lbl.gov; rtatar@socrates.berkeley.edu
RI Murayama, Hitoshi/A-4286-2011
NR 63
TC 0
Z9 0
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 MAY
PY 2003
IS 5
AR 049
PG 29
WC Physics, Particles & Fields
SC Physics
GA 717HU
UT WOS:000185083300049
ER

PT J
AU Kachru, S
   Liu, X
   Schulz, M
   Trivedi, SP
AF Kachru, S
   Liu, X
   Schulz, M
   Trivedi, SP
TI Supersymmetry changing bubbles in string theory
SO JOURNAL OF HIGH ENERGY PHYSICS
LA English
DT Article
DE superstring vacua; D-branes; F-theory
ID BLACK-HOLE CONDENSATION; CALABI-YAU MANIFOLDS; DOMAIN-WALLS; VACUA;
   SUPERGRAVITY
AB We give examples of string compactifications to 4d Minkowski space with different amounts of supersymmetry that can be connected by spherical domain walls. The tension of these domain walls is tunably lower than the 4d Planck scale. The "stringy" description of these walls is known in terms of certain configurations of wrapped Dirichlet and NS branes. This construction allows us to connect a variety of vacua with 4d N = 4, 3, 2, 1 supersymmetry.
C1 Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
   Stanford Univ, SLAC, Stanford, CA 94305 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; liuxiao@stanford.edu; mschulz@stanford.edu;
   sandip@tifr.res.in
NR 21
TC 11
Z9 11
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 MAY
PY 2003
IS 5
AR 014
PG 11
WC Physics, Particles & Fields
SC Physics
GA 717HU
UT WOS:000185083300014
ER

PT J
AU Mayes, MA
   Jardine, PM
   Mehlhorn, TL
   Bjornstad, BN
   Ladd, T
   Zachara, JM
AF Mayes, MA
   Jardine, PM
   Mehlhorn, TL
   Bjornstad, BN
   Ladd, T
   Zachara, JM
TI Transport of multiple tracers in variably saturated humid region
   structured soils and semi-arid region laminated sediments
SO JOURNAL OF HYDROLOGY
LA English
DT Article
DE unsaturated zone; preferential flow; diffusion; equilibrium;
   breakthrough curves
ID UNSATURATED POROUS-MEDIA; REPELLENT SANDY SOIL; SOLUTE TRANSPORT;
   HYDRAULIC CONDUCTIVITY; FLOW-INTERRUPTION; FRACTURE SURFACES; IMMOBILE
   WATER; MASS-TRANSFER; GROUND-WATER; FILM FLOW
AB The processes governing physical nonequilibrium (PNE)-coupled preferential flow and matrix diffusion-are diverse between humid and semi-arid regions, and are directly related to climate and rock/sediment type, and indirectly related to subsequent soil profile development. The fate and transport of contaminants in these variably saturated undisturbed media is largely a function of the influence of PNE processes. Large cores of laminated silts and sands were collected from the US Department of Energy Pacific Northwest National Laboratory (PNNL) in semi-arid south central Washington. Additional cores of weathered, fractured interbedded limestone and shale saprolite were collected from the Oak Ridge National Laboratory (ORNL) in humid eastern Tennessee. PNNL cores were collected parallel (FBP) and perpendicular (FXB) to bedding, and the ORNL core was 30degrees to bedding. Saturated and unsaturated transport experiments were performed using multiple nonreactive tracers that had different diffusion coefficients (Br-, PFBA, and PIPES), in order to identify the influence of PNE on the fate and transport of solutes. In the ORNL structured saprolite, solute transport was governed by coupled preferential flow and matrix diffusion, as evidenced by tracer separation and highly asymmetric breakthrough curves (BTC). BTCs became more symmetric as preferential flowpaths became inactive during drainage. Tracer separation persisted during unsaturated flow suggesting the continued importance of nonequilibrium mass transfer between flowpaths and the immobile water that was held in the. soil matrix. No evidence of PNE was observed under near-saturated conditions in the semi-arid region (PNNL) laminated silts and sands. Unsaturated flow in cores with discontinuous layering resulted in preferential flow and the development of perched, immobile water as evidenced by early breakthrough and separation of tracers. Conversely, transport parallel to laterally continuous beds did not result in preferential flow, the development of perched water, or tracer separation regardless of water content. These observations suggested that desaturation had two effects: (1) grain size variations between individual beds resulted in different antecedent water contents, and (2) the exchange of water and solutes between individual sedimentary beds was subsequently inhibited. Under unsaturated conditions, these effects may promote either stable lateral flow, or unstable vertical finger flow coupled with the development of perched, immobile water. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Environm Sci, Oak Ridge, TN 37831 USA.
   Pacific NW Natl Lab, Richland, WA 99352 USA.
   Tennessee Technol Univ, Cookeville, TN 38505 USA.
RP Mayes, MA (reprint author), Oak Ridge Natl Lab, Div Environm Sci, POB 2008, Oak Ridge, TN 37831 USA.
NR 57
TC 29
Z9 29
U1 3
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1694
J9 J HYDROL
JI J. Hydrol.
PD MAY 1
PY 2003
VL 275
IS 3-4
BP 141
EP 161
DI 10.1016/S0022-1694(03)00039-8
PG 21
WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources
SC Engineering; Geology; Water Resources
GA 674FB
UT WOS:000182625800002
ER

PT J
AU Tartakovsky, DM
   Lu, ZM
   Guadagnini, A
   Tartakovsky, AM
AF Tartakovsky, DM
   Lu, ZM
   Guadagnini, A
   Tartakovsky, AM
TI Unsaturated flow in heterogeneous soils with spatially distributed
   uncertain hydraulic parameters
SO JOURNAL OF HYDROLOGY
LA English
DT Article
DE stochastic; random; moment equations; porous media; nonlinear
ID STEADY-STATE FLOW; CONDITIONAL MOMENT EQUATIONS; WATER TRANSPORT
   PARAMETERS; EXACT NONLOCAL FORMALISM; IN-SITU MEASUREMENTS; TRANSIENT
   FLOW; RECURSIVE APPROXIMATIONS; GEOSTATISTICAL APPROACH;
   STOCHASTIC-ANALYSIS; WEAK APPROXIMATION
AB Uncertain soil proper-ties are often modeled as random fields. This renders the unsaturated flow equations stochastic. Determining statistics of pressure head statistics, psi, is nontrivial, since the Richards equation is highly nonlinear. The prevalent approach is to linearize relative hydraulic conductivity, K-r(psi), around the ensemble mean pressure head, (psi), which often leads to significant errors. Recently, an approach has been proposed to avoid such a linearization for the Gardner model, K-r = exp(alphapsi), with the soil parameter a being a random variable. We generalize this approach by allowing a to be a random field. This is achieved by means of a partial mean-field approximation with respect to alpha(x). Using two-dimensional infiltration into a heterogeneous soil with uncertain hydraulic parameters as an example, we. demonstrate that our predictions of the mean pressure-head and its variance remain accurate for moderately variable as. The robustness of our solutions increases with the correlation length of a. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Los Alamos Natl Lab, Earth & Environm Sci Div, Los Alamos, NM USA.
   Politecn Milan, DIIAR, Milan, Italy.
   Idaho Natl Lab, Idaho Falls, ID USA.
RP Tartakovsky, DM (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM dmt@lanl.gov; zhiming@lanl.gov; alberto.guadagnini@polimi.it
RI Tartakovsky, Daniel/E-7694-2013; 
OI Lu, Zhiming/0000-0001-5800-3368
NR 39
TC 18
Z9 19
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1694
J9 J HYDROL
JI J. Hydrol.
PD MAY 1
PY 2003
VL 275
IS 3-4
BP 182
EP 193
DI 10.1016/S0022-1694(03)00042-8
PG 12
WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources
SC Engineering; Geology; Water Resources
GA 674FB
UT WOS:000182625800004
ER

PT J
AU Wu, JC
   Hu, BX
   Zhang, DX
AF Wu, JC
   Hu, BX
   Zhang, DX
TI Applications of nonstationary stochastic theory to solute transport in
   multi-scale geological media
SO JOURNAL OF HYDROLOGY
LA English
DT Article
ID HETEROGENEOUS MEDIA; GROUNDWATER-FLOW; FLUX APPROACH; CONDUCTIVITY;
   AQUIFERS; DISPERSION; MOMENTS; FIELDS
AB In this study, we make use of a nonstationary stochastic theory in studying solute flux through spatially nonstationary flows in porous media. The nonstationarity of flow stems from various sources, such as multi-scale, nonstationary medium features and complex hydraulic boundary conditions. These flow nonstationarities are beyond the applicable range of the "classical' stochastic theory for stationary flow fields, but widely exist in natural media. In this study, the stochastic frames for flow and transport are developed through an analytical analysis while the solutions are obtained with a numerical method. This approach combines the stochastic concept with the flexibility of the numerical method in. handling medium nonstationarity and boundary/initial conditions. It provides a practical way for applying stochastic theory to solute transport in complex groundwater environments. This approach is demonstrated through some synthetic cases of solute transport in multi-scale media as well as some hypothetical scenarios of solute transport in the groundwater below the Yucca Mountain project areas It is shown that the spatial variations of mean log-conductivity and correlation function significantly affect the mean and variance of solute flux. Even for a stationary medium, complex hydraulic boundary conditions may result in a nonstationary flow field. How nonstationarity and/or nonuniform distribution of initial plume (geometry and/or density) may lead to nonGaussian behaviors (with multiple peaks) for mean and variance of the solute flux. The calculated standard deviation of solute flux is generally larger than its mean value, which implies that real solute fluxes may significantly deviate from the mean predictions. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ & Community Syst Nevada, Desert Res Inst, Div Hydrol Sci, Las Vegas, NV 89119 USA.
   Nanjing Univ, Dept Earth Sci, Nanjing 210008, Peoples R China.
   Los Alamos Natl Lab, Hydrol Geochem & Geol Grp, Los Alamos, NM USA.
RP Hu, BX (reprint author), Univ & Community Syst Nevada, Desert Res Inst, Div Hydrol Sci, 755 E Flamingo Rd, Las Vegas, NV 89119 USA.
RI Zhang, Dongxiao/D-5289-2009
OI Zhang, Dongxiao/0000-0001-6930-5994
NR 25
TC 8
Z9 11
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1694
J9 J HYDROL
JI J. Hydrol.
PD MAY 1
PY 2003
VL 275
IS 3-4
BP 208
EP 228
DI 10.1016/S0022-1694(03)00044-1
PG 21
WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources
SC Engineering; Geology; Water Resources
GA 674FB
UT WOS:000182625800006
ER

PT J
AU Lee, DH
AF Lee, DH
TI Inhomogeneity in doped Mott insulator
SO JOURNAL OF LOW TEMPERATURE PHYSICS
LA English
DT Article; Proceedings Paper
CT International Conference on Physics and Chemistry of Molecular and Oxide
   Superconductors (MOS2002)
CY AUG 13-18, 2002
CL HSINCHU, TAIWAN
ID PHASE; SUPERCONDUCTORS; LATTICE; GAP
AB We introduce the concept that there are two generic classes of Mott insulators in nature. They are distinguished by their responses to weak doping. Doped charges form cluster (i.e. distribute inhomogeneously) in type I Mott insulators while distribute homogeneously in type II Mott insulators. We present our opinion on the role inhomogeneity plays in the cuprates.
C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
   Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.
RP Lee, DH (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
NR 23
TC 2
Z9 2
U1 0
U2 0
PU KLUWER ACADEMIC/PLENUM PUBL
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2291
J9 J LOW TEMP PHYS
JI J. Low Temp. Phys.
PD MAY
PY 2003
VL 131
IS 3-4
BP 181
EP 192
DI 10.1023/A:1022956515096
PG 12
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 659GB
UT WOS:000181768000004
ER

PT J
AU Chen, Y
   Wang, ZD
   Zhu, JX
   Ting, CS
AF Chen, Y
   Wang, ZD
   Zhu, JX
   Ting, CS
TI The sign of vortex charges in high temperature superconductors
SO JOURNAL OF LOW TEMPERATURE PHYSICS
LA English
DT Article; Proceedings Paper
CT International Conference on Physics and Chemistry of Molecular and Oxide
   Superconductors (MOS2002)
CY AUG 13-18, 2002
CL HSINCHU, TAIWAN
ID SPIN-DENSITY-WAVE; II SUPERCONDUCTORS; MAGNETIC-FIELD; VORTICES; STATES;
   CORE
AB Based on a widely adopted effective model Hamiltonian with competing antiferromagnetic (AF) and d-wave superconductivity (DSC) interactions, the vortex charge in high T-c superconductors is investigated by solving self-consistently the Bogoliubov-de Gennes equations. The band parameters are chosen in such a way that the obtained local densities at and far away from the vortex center are in qualitative agreement with the STM measurements on YBCO. Both the hole-rich normal and electron-rich AF vortices are found, depending on the strength of induced AF order. The vortex charge is strongly influenced by the competing effects from the AF order and the DSC order at the vortex core. By tuning the on-site Coulomb repulsion U or the doping parameter delta, a transition between the positive and negative vortex charges may occur. Recent NMR and Hall effect experiments on vortex charges can be understood in terms of the present results. New imaging experiments should be able to probe the vortex charge directly.
C1 Univ Houston, Texas Ctr Supercond, Houston, TX 77204 USA.
   Univ Houston, Dept Phys, Houston, TX 77204 USA.
   Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
   Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Chen, Y (reprint author), Univ Houston, Texas Ctr Supercond, Houston, TX 77204 USA.
RI Wang, Zidan/D-3138-2009; Chen, Yan/B-2158-2012
OI Chen, Yan/0000-0002-1906-1802
NR 27
TC 0
Z9 0
U1 0
U2 5
PU KLUWER ACADEMIC/PLENUM PUBL
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2291
J9 J LOW TEMP PHYS
JI J. Low Temp. Phys.
PD MAY
PY 2003
VL 131
IS 3-4
BP 229
EP 238
DI 10.1023/A:1022968917822
PG 10
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 659GB
UT WOS:000181768000010
ER

PT J
AU Reznik, D
   Pintschovius, L
   Reichardt, W
   Endoh, Y
   Hiraka, H
   Tranquada, JM
   Tajima, S
   Uchiyama, H
   Masui, T
AF Reznik, D
   Pintschovius, L
   Reichardt, W
   Endoh, Y
   Hiraka, H
   Tranquada, JM
   Tajima, S
   Uchiyama, H
   Masui, T
TI Oxygen phonon branches in detwinned YBa2Cu3O7
SO JOURNAL OF LOW TEMPERATURE PHYSICS
LA English
DT Article; Proceedings Paper
CT International Conference on Physics and Chemistry of Molecular and Oxide
   Superconductors (MOS2002)
CY AUG 13-18, 2002
CL HSINCHU, TAIWAN
ID LATTICE
AB We report results of inelastic neutron scattering measurements of phonon dispersions on a detwinned sample of YBa2Cu3O7 and compare them with model calculations. Plane oxygen bond stretching phonon branches disperse steeply downwards from the zone center in both the a and the b direction indicating a strong electron-phonon coupling. Half way to the zone boundary, the phonon peaks become ill-defined but we see no need to invoke unit cell doubling or charge stripe formation: lattice dynamical shell model calculations predict such behavior as a result of branch anticrossings. There were no observable superconductivity-related temperature effects on selected plane oxygen bond stretching modes measured on a twinned sample.
C1 Forschungszentrum Karlsruhe, Inst Festkorperphys, D-76021 Karlsruhe, Germany.
   CENS, Lab Leon Brillouin, CEA CNRS, F-91191 Gif Sur Yvette, France.
   Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan.
   Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
   ISTEC, Superconduct Res Lab, Tokyo 1350062, Japan.
RP Reznik, D (reprint author), Forschungszentrum Karlsruhe, Inst Festkorperphys, Postfach 3640, D-76021 Karlsruhe, Germany.
RI Tranquada, John/A-9832-2009
OI Tranquada, John/0000-0003-4984-8857
NR 6
TC 7
Z9 7
U1 0
U2 1
PU KLUWER ACADEMIC/PLENUM PUBL
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0022-2291
J9 J LOW TEMP PHYS
JI J. Low Temp. Phys.
PD MAY
PY 2003
VL 131
IS 3-4
BP 417
EP 421
DI 10.1023/A:1022978614613
PG 5
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 659GB
UT WOS:000181768000039
ER

PT J
AU Klintenberg, MK
   Weber, MJ
   Derenzo, DE
AF Klintenberg, MK
   Weber, MJ
   Derenzo, DE
TI Luminescence and scintillation of PbI2 and HgI2
SO JOURNAL OF LUMINESCENCE
LA English
DT Article; Proceedings Paper
CT International Conference on Luminescence and Optical Spectroscopy of
   Condensed Matter
CY AUG 24-29, 2002
CL BUDAPEST, HUNGARY
DE wide bandgap semiconductors; near-band-edge emission; scintillation
   properties; pulsed X-ray excitation
ID MERCURIC IODIDE; CRYSTALS
AB The luminescence spectra and scintillation decay properties of wide-bandgap semiconductors PbI2 and HgI2 have been investigated as a function of temperature in the range 10-165 K. Decay times and luminosities were measured using powder samples and crystals and a pulsed X-ray facility capable of a time resolution of similar to 60 ps. In both materials, near-band-edge exciton lines and broad emission bands shifted to lower energies are observed. The X-ray excited scintillations exhibit fast (ns), nonexponential decays. The rise and decay rates of the broad emission bands decrease with increasing wavelength characteristic of donor-acceptor pair emission. With increasing temperature, the luminosities decrease much faster than the fwhm decay lifetimes. Therefore the reduction in luminosity is not due primarily to thermal quenching of the excited states but to thermally activated trapping of charge carriers on nonradiative recombination centers. Published by Elsevier Science B.V.
C1 Uppsala Univ, Dept Phys, Uppsala, Sweden.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Weber, MJ (reprint author), Uppsala Univ, Dept Phys, Uppsala, Sweden.
NR 15
TC 18
Z9 20
U1 1
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-2313
J9 J LUMIN
JI J. Lumines.
PD MAY
PY 2003
VL 102
BP 287
EP 290
AR PII S0022-2313(02)00511-2
DI 10.1016/S0022-2313(02)00511-2
PG 4
WC Optics
SC Optics
GA 669XL
UT WOS:000182376000055
ER

PT J
AU Gektin, AV
   Shiran, NV
   Neicheva, SV
   Weber, M
   Derenzo, SE
   Moses, WW
AF Gektin, AV
   Shiran, NV
   Neicheva, SV
   Weber, M
   Derenzo, SE
   Moses, WW
TI Energy transfer in LiCaAlF6 : Ce3+
SO JOURNAL OF LUMINESCENCE
LA English
DT Article; Proceedings Paper
CT International Conference on Luminescence and Optical Spectroscopy of
   Condensed Matter
CY AUG 24-29, 2002
CL BUDAPEST, HUNGARY
DE LiCaAlF6 : Ce3+; scintillation process; ultrafast rise time
   measurements; thermostimulated luminescence
ID CRYSTAL
AB Time-resolved X-ray excited luminescence, induced absorption and thermostimulated luminescence in pure and Ce-doped LiCaAlF6 crystals have been investigated. It was found that the Ce-doped samples have a fast rise time and a 25 ns decay time following pulsed photoexcitation and a 6 ns rise time and a 50 ns decay time following pulsed X-ray excitation. This may be connected with the transport and sequential capture of charge carriers at or near the Ce3+ ion. The overlapping self-trapped exciton emission (280 nm) and Ce3+ ion absorption (270 nm) bands also makes excitonic energy transfer possible. Shallow and deep traps were found in the LiCaAlF6:Ce3+ crystals. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Inst Single Crystals, AHC Dept, UA-310001 Kharkov, Ukraine.
   Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Gektin, AV (reprint author), Inst Single Crystals, AHC Dept, 60 Lenin Ave 61001, UA-310001 Kharkov, Ukraine.
NR 9
TC 15
Z9 15
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-2313
J9 J LUMIN
JI J. Lumines.
PD MAY
PY 2003
VL 102
BP 460
EP 463
DI 10.1016/S0022-2313(02)00599-9
PG 4
WC Optics
SC Optics
GA 669XL
UT WOS:000182376000085
ER

PT J
AU Harris, DJ
   de Azevedo, ER
   Bonagamba, TJ
AF Harris, DJ
   de Azevedo, ER
   Bonagamba, TJ
TI Difference-NMR techniques for selection of components on the basis of
   relaxation times
SO JOURNAL OF MAGNETIC RESONANCE
LA English
DT Article
DE direct-polarization; cross-polarization; selection; relaxation time; T-1
AB This work describes a numerical methodology to obtain more efficient relaxation filters to selectively retain or remove components based on relaxation times. The procedure uses linear combinations of spectra with various recycle or filter delays to obtain components that are both quantitative and pure. Modulation profiles are calculated assuming exponential relaxation behavior. The method is general and can be applied to a wide range of solution or solid-state NMR experiments including direct-polarization (DP), or filtered cross-polarization (CP) spectra. C-13 NMR experiments on isotactic poly(I-butene) and dimethyl sulfone showed the utility of the technique for selectively suppressing peaks. Published by Elsevier Science (USA).
C1 Sandia Natl Labs, Organ Mat Dept, Albuquerque, NM 87185 USA.
   Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP, Brazil.
RP Harris, DJ (reprint author), 1151 Boston Providence Turnpike, Norwood, MA 02062 USA.
RI Bonagamba, Tito/A-2166-2008; deAzevedo, Eduardo/A-1906-2013; Sao Carlos
   Institute of Physics, IFSC/USP/M-2664-2016
OI deAzevedo, Eduardo/0000-0003-2461-4755; 
NR 7
TC 4
Z9 4
U1 1
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1090-7807
J9 J MAGN RESON
JI J. Magn. Reson.
PD MAY
PY 2003
VL 162
IS 1
BP 67
EP 73
DI 10.1016/S1090-7807(03)00043-0
PG 7
WC Biochemical Research Methods; Physics, Atomic, Molecular & Chemical;
   Spectroscopy
SC Biochemistry & Molecular Biology; Physics; Spectroscopy
GA 687JD
UT WOS:000183372400005
PM 12762984
ER

PT J
AU Chuzhoy, L
   DeVor, RE
   Kapoor, SG
   Beaudoin, AJ
   Bammann, DJ
AF Chuzhoy, L
   DeVor, RE
   Kapoor, SG
   Beaudoin, AJ
   Bammann, DJ
TI Machining simulation of ductile iron and its constituents, part 1
   estimation of material model
SO JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE
   ASME
LA English
DT Article
AB A microstructure-level simulation model was recently developed to characterize machining behavior of heterogeneous materials. During machining of heterogeneous materials such as cast iron, the material around the machining-affected zone undergoes reverse loading, which manifests itself in permanent material softening. In addition, cracks are formed below and ahead of the tool. To accurately simulate machining of heterogeneous materials the microstmcture-level model has to reproduce the effect of material softening on reverse loading (MSRL effect) and material damage. This paper describes procedures used to calculate the material behavior parameters for the aforementioned phenomena. To calculate the parameters associated with the MSRL effect, uniaxial reverse loading experiments and simulations were conducted using individual constituents of ductile iron. The material model was validated with reverse loading experiments of ductile iron specimens. To determine the parameters associated with fracture of each constituent, experiments and simulation of notched specimens are performed. During the validation stage, response of simulated ductile iron was in good agreement with the experimental data.
C1 Caterpillar Inc, Ctr Tech, R&D, Peoria, IL 61525 USA.
   Univ Illinois, Dept Mech & Ind Engn, Urbana, IL 61801 USA.
   Sandia Natl Labs, Livermore, CA 94550 USA.
RP Chuzhoy, L (reprint author), Caterpillar Inc, Ctr Tech, R&D, Peoria, IL 61525 USA.
NR 13
TC 41
Z9 41
U1 0
U2 3
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1087-1357
J9 J MANUF SCI E-T ASME
JI J. Manuf. Sci. Eng.-Trans. ASME
PD MAY
PY 2003
VL 125
IS 2
BP 181
EP 191
DI 10.1115/1.1557294
PG 11
WC Engineering, Manufacturing; Engineering, Mechanical
SC Engineering
GA 672WT
UT WOS:000182546600001
ER

PT J
AU Shih, AJ
   Scattergood, RO
   Curry, AC
   Yonushonis, TM
   Gust, DJ
   Grant, MB
   McSpadden, SB
   Watkins, TR
AF Shih, AJ
   Scattergood, RO
   Curry, AC
   Yonushonis, TM
   Gust, DJ
   Grant, MB
   McSpadden, SB
   Watkins, TR
TI Cost-effective grinding of zirconia using the dense vitreous bond
   silicon carbide wheel
SO JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE
   ASME
LA English
DT Article
ID BLADE DIAMOND TOOLS; WEAR
AB Results of grinding zirconia using wheels with fine grain size SiC and dense vitreous bond are presented Wheel wear results demonstrated that this type of SiC wheel could grind fully and partially stabilized zirconia (PSZ) very effectively. X-ray diffraction was used to analyze the percentage of monoclinic phase in the PSZ base material, ground surface, and debris. As expected, due to the stress- and temperature-induced phase transformation during grinding, the percentage of monoclinic phase on the ground surface was increased relative to the base material. However X-ray diffraction showed no monoclinic phase in the PSZ debris. This suggests that, during grinding, the low thermal conductivity of zirconia and SiC, compared to that of diamond, facilitates heat retention in the chip and softens the work-material. This makes the efficient grinding of PSZ possible. Grinding temperature measurement results supported this hypothesis.
C1 Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
   N Carolina State Univ, Dept Mat Sci & Engn, Raleigh, NC 27695 USA.
   N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA.
   Cummins Tech Ctr, Columbus, IN 47202 USA.
   Oak Ridge Natl Lab, High Temp Mat Lab, Oak Ridge, TN 37831 USA.
RP Shih, AJ (reprint author), Univ Michigan, Dept Mech Engn, Ann Arbor, MI 48109 USA.
RI Scattergood, Ronald/D-5204-2009; Watkins, Thomas/D-8750-2016
OI Watkins, Thomas/0000-0002-2646-1329
NR 18
TC 7
Z9 7
U1 0
U2 0
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1087-1357
J9 J MANUF SCI E-T ASME
JI J. Manuf. Sci. Eng.-Trans. ASME
PD MAY
PY 2003
VL 125
IS 2
BP 297
EP 303
DI 10.1115/1.1559167
PG 7
WC Engineering, Manufacturing; Engineering, Mechanical
SC Engineering
GA 672WT
UT WOS:000182546600013
ER

PT J
AU Nguyen, BN
   Johnson, KI
   Khaleel, MA
AF Nguyen, BN
   Johnson, KI
   Khaleel, MA
TI Analysis of tube hydroforming by means of an inverse approach
SO JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE
   ASME
LA English
DT Article
ID METAL FORMING PARTS; SHEET; DESIGN
AB This paper presents a computational tool for the analysis of freely hydroformed tubes by means of an inverse approach. The formulation of the inverse method developed by Guo et al. [1] is adopted and extended to the tube hydroforming problems in which the initial geometry is a round tube submitted to hydraulic pressure and axial feed at the tube ends (end-feed). A simple criterion based on a forming limit diagram is used to predict the necking regions in the deformed workpiece. Although the developed computational tool is a stand-alone code, it has been linked to the Marc finite element code for meshing and visualization of results. The application of the inverse approach to tube hydroforming is illustrated through the analyses of the aluminum alloy AA6061-T4 seamless tubes under free hydroforming conditions. The results obtained are in good agreement with those issued from a direct incremental approach. However the computational time in the inverse procedure is much less than that in the incremental method.
C1 Pacific NW Natl Lab, Computat Mech & Mat Behav Grp, Richland, WA 99352 USA.
RP Khaleel, MA (reprint author), Pacific NW Natl Lab, Computat Mech & Mat Behav Grp, Richland, WA 99352 USA.
OI khaleel, mohammad/0000-0001-7048-0749
NR 16
TC 10
Z9 10
U1 0
U2 2
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1087-1357
J9 J MANUF SCI E-T ASME
JI J. Manuf. Sci. Eng.-Trans. ASME
PD MAY
PY 2003
VL 125
IS 2
BP 369
EP 377
DI 10.1115/1.1559166
PG 9
WC Engineering, Manufacturing; Engineering, Mechanical
SC Engineering
GA 672WT
UT WOS:000182546600022
ER

PT J
AU Leonard, KJ
   Goyal, A
   Kroeger, DM
   Jones, JW
   Kang, S
   Rutter, N
   Paranthaman, M
   Lee, DF
   Kang, BW
AF Leonard, KJ
   Goyal, A
   Kroeger, DM
   Jones, JW
   Kang, S
   Rutter, N
   Paranthaman, M
   Lee, DF
   Kang, BW
TI Thickness dependence of microstructure and critical current density of
   YBa2Cu3O7-delta on rolling-assisted biaxially textured substrates
SO JOURNAL OF MATERIALS RESEARCH
LA English
DT Article
ID THIN-FILMS; COATED CONDUCTORS; SUPERCONDUCTING FILMS;
   ELECTRON-MICROSCOPY; SURFACE OUTGROWTHS; Y2O3 INCLUSIONS; DEPOSITION
   RATE; POWER-CABLE; 100 SRTIO3; GROWTH
AB The change in microstructure associated with the decrease in critical current density (J(c)) of YBa2Cu3O7-delta (YBCO) films with increasing thickness was examined. Samples of pulse laser deposited YBCO films varying in thickness from 0.19 to 3.0 mum on rolling-assisted biaxially textured substrates with an architecture of CeO2/YSZ/CeO2/Ni were prepared by tripod polishing for cross-sectional electron microscopy. More randomly oriented grains in the upper portion of the YBCO film surface were observed with increasing film thickness, resulting in less cube texture. In addition, increases in mismatch across the boundaries of the c-axis grains with increasing time during deposition, along with the development of BaCeO3 and Y2BaCuO5 phases at the YBCO/CeO2 interface, contributed to the degradation of film properties. Surface outgrowths of the YBCO film were examined as well as the defect structures and second-phase formations within the films.
C1 Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Pohang Univ Sci & Technol, Dept Phys, Pohang, South Korea.
RP Leonard, KJ (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RI Paranthaman, Mariappan/N-3866-2015
OI Paranthaman, Mariappan/0000-0003-3009-8531
NR 40
TC 24
Z9 24
U1 1
U2 3
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 MAY
PY 2003
VL 18
IS 5
BP 1109
EP 1122
DI 10.1557/JMR.2003.0153
PG 14
WC Materials Science, Multidisciplinary
SC Materials Science
GA 673NG
UT WOS:000182586600014
ER

PT J
AU Qian, J
   Zerda, TW
   He, D
   Daemen, L
   Zhao, Y
AF Qian, J
   Zerda, TW
   He, D
   Daemen, L
   Zhao, Y
TI Micron diamond composites with nanocrystalline silicon carbide bonding
SO JOURNAL OF MATERIALS RESEARCH
LA English
DT Article
ID HIGH-PRESSURE; SUPERHARD MATERIALS; AMORPHOUS-SILICON; MELTING-POINT;
   SIC COMPOSITE; PERSPECTIVES; DIFFRACTION; CRYSTALS; GROWTH; FILMS
AB Diamond composites with nanocrystalline cubic silicon carbide bonding were sintered from diamond/amorphous silicon mixtures under high pressure and high temperature (p = 5 GPa and temperatures up to 1673 K). Differential scanning calorimetry, ex situ x-ray, and Raman spectroscopy investigations showed that amorphous silicon partially transformed into nanocrystalline silicon at 873 K under 5 GPa. This was followed by the formation of nanocrystalline silicon carbide from the reaction between the silicon and diamond after silicon melting. Refinement of the x-ray diffraction patterns of composites with the Rietveld method revealed that considerable microstrain (0.3-0.5%) remained within the nanocrystalline silicon carbide grains. Small strain (0.1-0.2%) was observed in the compacted diamonds, but after the reaction they became almost strain free (<0.1%). Enhanced fracture toughness was obtained for hybrid composites compared to liquid-infiltrated composites.
C1 Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA.
   Los Alamos Natl Lab, Manuel Lujan Jr Neutron Scattering Ctr, Los Alamos, NM 87545 USA.
RP Qian, J (reprint author), Texas Christian Univ, Dept Phys & Astron, Ft Worth, TX 76129 USA.
RI Lujan Center, LANL/G-4896-2012
NR 27
TC 13
Z9 15
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 MAY
PY 2003
VL 18
IS 5
BP 1173
EP 1178
DI 10.1557/JMR.2003.0161
PG 6
WC Materials Science, Multidisciplinary
SC Materials Science
GA 673NG
UT WOS:000182586600022
ER

PT J
AU Hsueh, CH
   Miranda, P
AF Hsueh, CH
   Miranda, P
TI Modeling of contact-induced radial cracking in ceramic bilayer coatings
   on compliant substrates
SO JOURNAL OF MATERIALS RESEARCH
LA English
DT Article
ID BRITTLE LAYER STRUCTURES; CONCENTRATED LOADS; RESIDUAL-STRESSES;
   THIN-FILMS; FRACTURE; INTERLAYER; DAMAGE
AB Contact-induced radial cracking in ceramic coatings on compliant substrates was analyzed recently. Radial cracks initiate at the coating/substrate interface beneath the contact where maximum flexural tension occurs, and an analytical expression for the onset of radial cracking in monolayer coatings was formulated on the basis of the classical solution for flexing plates on elastic foundation. In the present study, the analytical expression was derived for the case of ceramic bilayer coatings on compliant substrates, which have significant applications in the structure of dental crowns. It was found that the analytical solution for bilayer-coating/substrate systems can be obtained from that of monolayer-coating/substrate systems by replacing the neutral surface position and the flexural rigidity of monolayer coating with those of bilayer coating. The predicted critical loads for initiating radial cracking were found to be in good agreement with existing measurements and finite element results for glass/alumina, glass/glass-ceramic, and glass/Y2O3-stabilized ZrO2 polycrystal bilayers on polycarbonate substrates. Limitations of the present analysis are discussed.
C1 Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
   Univ Extremadura, Escuela Ingn Ind, Dept Elect & Ingn Electromecan, Badajoz 06071, Spain.
RP Hsueh, CH (reprint author), Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN 37831 USA.
RI Hsueh, Chun-Hway/G-1345-2011; Miranda, Pedro/C-4465-2008
OI Miranda, Pedro/0000-0003-4348-110X
NR 23
TC 17
Z9 17
U1 0
U2 3
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 MAY
PY 2003
VL 18
IS 5
BP 1275
EP 1283
DI 10.1557/JMR.2003.0175
PG 9
WC Materials Science, Multidisciplinary
SC Materials Science
GA 673NG
UT WOS:000182586600036
ER

PT J
AU Straub, TM
   Chandler, DP
AF Straub, TM
   Chandler, DP
TI Towards a unified system for detecting waterborne pathogens
SO JOURNAL OF MICROBIOLOGICAL METHODS
LA English
DT Review
DE unified system; waterborne pathogen; current technology
ID POLYMERASE-CHAIN-REACTION; CRYPTOSPORIDIUM-PARVUM OOCYSTS; REVERSE
   TRANSCRIPTION-PCR; ESCHERICHIA-COLI O157-H7; HOLLOW-FIBER ULTRAFILTERS;
   HEPATITIS-A VIRUS; 16S RIBOSOMAL-RNA; IMMUNOMAGNETIC SEPARATION; RAPID
   DETECTION; RENEWABLE MICROCOLUMNS
AB Currently, there is no single method to collect, process, and analyze a water sample for all pathogenic microorganisms of interest. Some of the difficulties in developing a universal method include the physical differences between the major pathogen groups (viruses, bacteria, protozoa), efficiently concentrating large volume water samples to detect low target concentrations of certain pathogen groups, removing co-concentrated inhibitors from the sample, and standardizing 4 culture-independent endpoint detection method. Integrating the disparate technologies into a single, universal, simple method and detection system would represent a significant advance in public health and microbiological water quality analysis. Recent advances in sample collection, on-line sample processing and purification, and DNA microarray technologies may form the basis of a universal method to detect known and emerging waterborne pathogens. This review discusses some of the challenges in developing a universal pathogen detection method, current technology that may be employed to overcome these challenges, and the remaining needs for developing an integrated pathogen detection and monitoring system for source or finished water. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Analyt Microbiol Grp, Richland, WA 99352 USA.
   Argonne Natl Lab, Biochip Technol Ctr, Argonne, IL 60439 USA.
RP Straub, TM (reprint author), Pacific NW Natl Lab, Analyt Microbiol Grp, 902 Battelle Blvd,POB 999 MSIN P7-50, Richland, WA 99352 USA.
NR 81
TC 117
Z9 127
U1 2
U2 19
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-7012
J9 J MICROBIOL METH
JI J. Microbiol. Methods
PD MAY
PY 2003
VL 53
IS 2
BP 185
EP 197
DI 10.1016/S0167-7012(03)00023-X
PG 13
WC Biochemical Research Methods; Microbiology
SC Biochemistry & Molecular Biology; Microbiology
GA 668NB
UT WOS:000182299100007
PM 12654490
ER

PT J
AU Turner, R
   Desta, Y
   Kelly, K
   Zhang, J
   Geiger, E
   Cortez, S
   Mancini, DC
AF Turner, R
   Desta, Y
   Kelly, K
   Zhang, J
   Geiger, E
   Cortez, S
   Mancini, DC
TI Tapered LIGA HARMs
SO JOURNAL OF MICROMECHANICS AND MICROENGINEERING
LA English
DT Article
ID X-RAY-LITHOGRAPHY; DEEP
AB The standard LIGA process takes advantage of the use of x-ray lithography to produce mold inserts with nearly vertical sidewall; the typical slope of patterns produced by x-ray lithography of polymethylmethacrylate is 0.1%. This lack of significant taper (draft angle) greatly increases the difficulty associated with ejecting parts during demolding. In this paper, a procedure is described to fabricate a mold insert with tapered features having a height of approximately I mm and lateral dimensions of approximately 300 mum. A set of six oblique exposures of a thick layer of SU-8 (an EPON epoxy based negative tone resist) is used to create hexagonal posts with a 3degrees draft angle. An electroforming process is used to fabricate a nickel mold insert with the tapered features. This mold insert is used to injection mold tapered polymer high aspect ratio microstructures. The dimensions of the SU-8 tapered structures (as well as the mold insert) are within 4 mum of desired/predicted values.
C1 Louisiana State Univ, Dept Engn Mech, Baton Rouge, LA 70803 USA.
   Ctr Adv Microstruct & Devices, Baton Rouge, LA USA.
   Argonne Natl Lab, Argonne, IL 60439 USA.
RP Turner, R (reprint author), Louisiana State Univ, Dept Engn Mech, Baton Rouge, LA 70803 USA.
RI Geiger, Emil/G-5341-2015
OI Geiger, Emil/0000-0001-5828-805X
NR 12
TC 28
Z9 28
U1 0
U2 8
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0960-1317
J9 J MICROMECH MICROENG
JI J. Micromech. Microeng.
PD MAY
PY 2003
VL 13
IS 3
BP 367
EP 372
AR PII S0960-1317(03)55908-3
DI 10.1088/0960-1317/13/3/303
PG 6
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
   Instruments & Instrumentation; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Instruments &
   Instrumentation; Physics
GA 680LL
UT WOS:000182979600003
ER

PT J
AU Buelna, G
   Jarek, RL
   Thornberg, SM
   Nenoff, TM
AF Buelna, G
   Jarek, RL
   Thornberg, SM
   Nenoff, TM
TI Real-time study on cumene formation based on RGA/MS analysis
SO JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
LA English
DT Article
DE alkylation of benzene; gas chromatography; mass spectroscopy; real-time;
   residual gas analysis
ID SURFACE-ENHANCED RAMAN; MASS-SPECTROMETRY; METHANOL OXIDATION; AMBIENT
   PRESSURES; BETA-ZEOLITE; FUEL-CELL; BENZENE; ALKYLATION; PROPENE;
   SPECTROSCOPIES
AB Commonly, catalytic reactions are carried out in batch reactors and analyses are performed upon reaction completion yielding little information about time-resolved concentrations of reactants and products. Herein an in situ analysis by real-time mass spectroscopy provides time-resolved information about heterogeneous catalytic reactions, such as reaction completion time and product formation. This paper presents a novel application of real-time mass spectrometry to monitor the progress of an alkylation reaction of benzene with propylene to produce cumene, using an H+ beta-zeolite (Si/Al: 12/1) catalyst at 150 degreesC with a 7:1 benzene to propylene molar ratio. Quantitative analysis of products was performed by gas chromatography (GC). Mass spectroscopy (MS) was utilized to continuously monitor reactants being consumed and products being formed during the alkylation process in real-time, to identify side products formed during the reaction, and to determine reaction completion. The real-time monitoring indicated that propylene was quickly absorbed/consumed, while cumene had a delayed release back into the gas phase. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Sandia Natl Labs, Environm Monitoring & Characterizat Dept, Albuquerque, NM 87185 USA.
   Sandia Natl Labs, Total Syst Performance Assessment Dept, Albuquerque, NM 87185 USA.
   Sandia Natl Labs, Chem & Biol Sensing Imaging & Anal Dept, Albuquerque, NM 87185 USA.
RP Nenoff, TM (reprint author), Sandia Natl Labs, Environm Monitoring & Characterizat Dept, POB 5800,MS-0755, Albuquerque, NM 87185 USA.
NR 18
TC 8
Z9 8
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1381-1169
J9 J MOL CATAL A-CHEM
JI J. Mol. Catal. A-Chem.
PD MAY 1
PY 2003
VL 198
IS 1-2
BP 289
EP 295
DI 10.1016/S1381-1169(02)00735-5
PG 7
WC Chemistry, Physical
SC Chemistry
GA 678ZP
UT WOS:000182896800029
ER

PT J
AU Smith, UR
   Kuiken, C
   Korber, BT
AF Smith, UR
   Kuiken, C
   Korber, BT
TI Recent evolutionary history of human immunodeficiency virus type I
   subtype B - Response
SO JOURNAL OF MOLECULAR EVOLUTION
LA English
DT Letter
DE HIV-1; AIDS; epidemic; molecular clock; most recent common ancestor
ID INFECTION; ANCESTOR
AB The year of origin estimated by Lukashov and Goudsmit for HIV-1 subtype B is 1976 (95% CI, 1974-1977); this is significantly different from our prior estimate, 1967 (95% CI, 1960-1971). We review published evidence, which suggests that their estimate is too late.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Smith, UR (reprint author), Los Alamos Natl Lab, MS K-710, Los Alamos, NM 87545 USA.
NR 8
TC 5
Z9 5
U1 0
U2 0
PU SPRINGER-VERLAG
PI NEW YORK
PA 175 FIFTH AVE, NEW YORK, NY 10010 USA
SN 0022-2844
J9 J MOL EVOL
JI J. Mol. Evol.
PD MAY
PY 2003
VL 56
IS 5
BP 643
EP 644
DI 10.1007/s00239-002-2438-6
PG 2
WC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics &
   Heredity
SC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics &
   Heredity
GA 664MR
UT WOS:000182065300011
PM 12718318
ER

PT J
AU Chang, BC
   Guss, J
   Sears, TJ
AF Chang, BC
   Guss, J
   Sears, TJ
TI Hot bands in the A <- X spectrum of HCBr
SO JOURNAL OF MOLECULAR SPECTROSCOPY
LA English
DT Article
ID FREQUENCY-MODULATION SPECTROSCOPY; ABSORPTION-SPECTROSCOPY;
   BROMOMETHYLENE; NM; PHOTODISSOCIATION; BROMOFORM; CHBR3; EXCITATION;
   MOLECULES; OZONE
AB Spectra of both the (A) over tilde (0, 0, 0)-(X) over tildet(0, 1, 0) and (A) over tilde (0, 0, 0)-(X) over tilde (0, 0, 1) bands in the (A) over tilde-(X) over tilde band system of HCBr have been recorded and rotationally assigned. The HCBr radical was formed by 193 nm excimer laser photolysis of bromoform. We found no signals from HCBr when the photolysis laser wavelength was changed to 248 nm, although strong CH product emission was observed by eye at both wavelengths. Most of the spectra were recorded in absorption at ambient temperature in a long-path absorption cell using a single frequency Ti:sapphire laser as the light source, but some congested sections were recorded under jet-cooled conditions. Analysis yielded accurate values for the vibrational fundamentals and rotational constants for the vibrationally excited ground state levels determined. A combination of experimental measurements and ab initio vibration-rotation constants was used to estimate equilibrium parameters and a ground state structure for HCBr. Published by Elsevier Science (USA).
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   Natl Cent Univ, Dept Chem, Chungli 32054, Taiwan.
RP Sears, TJ (reprint author), Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
RI Sears, Trevor/B-5990-2013
OI Sears, Trevor/0000-0002-5559-0154
NR 27
TC 24
Z9 24
U1 0
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-2852
J9 J MOL SPECTROSC
JI J. Mol. Spectrosc.
PD MAY
PY 2003
VL 219
IS 1
BP 136
EP 144
DI 10.1016/S0022-2852(03)00032-8
PG 9
WC Physics, Atomic, Molecular & Chemical; Spectroscopy
SC Physics; Spectroscopy
GA 684RW
UT WOS:000183221200016
ER

PT J
AU DeSain, JD
   Ho, AD
   Taatjes, CA
AF DeSain, JD
   Ho, AD
   Taatjes, CA
TI High-resolution diode laser absorption spectroscopy of the O-H stretch
   overtone band (2,0,0)<-(0,0,0) of the HO2 radical
SO JOURNAL OF MOLECULAR SPECTROSCOPY
LA English
DT Article
DE HO2 radical; overtone; infrared spectroscopy; diode laser
ID PLUS O-2 REACTIONS; PRODUCT FORMATION; SPECTRUM; KINETICS; RESONANCE; MU
AB The O-H stretching overtone (2v(1)) of the HO2 radical was observed between 6603.2 to 6685.5 cm(-1) by using tunable diode laser absorption spectroscope, (TDLAS). About 1000 lines were observed in this region of which 491 transitions could be definitively assigned to the 2v(1). The spectrum is observed to be an A/B hybrid band with band features of both a perpendicular and parallel nature. Transitions of the A-type bands with K-a' = 0-3, N' less than or equal to 16 and transitions of the B-type bands with K-a' = 01 1, N' less than or equal to 15 were assigned. The origin calculated front the best fit to the present spectrum is at 6651.1876(38) cm(-1) which is similar to4.6 cm(-1) higher than previously reported. The overtone spectrum is observed to be heavily perturbed, possibly by Fermi resonance with energy levels of the nearby (v(2) + 5v(3)) state. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 Aerosp Corp, Los Angeles, CA 90009 USA.
   Sandia Natl Labs, Combust Res Facil, Livermore, CA 94551 USA.
RP DeSain, JD (reprint author), Aerosp Corp, POB 92957,M5-754, Los Angeles, CA 90009 USA.
EM john.d.desain@aero.org
NR 27
TC 26
Z9 28
U1 3
U2 17
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-2852
EI 1096-083X
J9 J MOL SPECTROSC
JI J. Mol. Spectrosc.
PD MAY
PY 2003
VL 219
IS 1
BP 163
EP 169
DI 10.1016/S0022-2852(03)00022-5
PG 7
WC Physics, Atomic, Molecular & Chemical; Spectroscopy
SC Physics; Spectroscopy
GA 684RW
UT WOS:000183221200019
ER

PT J
AU Rajarara, V
   Gutmann, DH
   Conboy, JG
   Perry, A
AF Rajarara, V
   Gutmann, DH
   Conboy, JG
   Perry, A
TI Deletion testing of protein 4.1 family members by fluorescence in-situ
   hybridization (FISH) in ependymomas.
SO JOURNAL OF NEUROPATHOLOGY AND EXPERIMENTAL NEUROLOGY
LA English
DT Meeting Abstract
CT 79th Annual Meeting of the American-Association-of-Neuropathologists
CY JUN 19-22, 2003
CL ORLANDO, FLORIDA
SP Amer Assoc Neuropatholgists
C1 Washington Univ, Sch Med, St Louis, MO 63130 USA.
   Lawrence Berkeley Lab, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSN NEUROPATHOLOGISTS INC
PI LAWRENCE
PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 USA
SN 0022-3069
J9 J NEUROPATH EXP NEUR
JI J. Neuropathol. Exp. Neurol.
PD MAY
PY 2003
VL 62
IS 5
MA 28
BP 545
EP 545
PG 1
WC Clinical Neurology; Neurosciences; Pathology
SC Neurosciences & Neurology; Pathology
GA 680CQ
UT WOS:000182959100040
ER

PT J
AU Click, CA
   Brow, RK
   Ehrmann, PR
   Campbell, JH
AF Click, CA
   Brow, RK
   Ehrmann, PR
   Campbell, JH
TI Characterization of Pt4+ in alumino-metaphosphate laser glasses
SO JOURNAL OF NON-CRYSTALLINE SOLIDS
LA English
DT Article
ID PHOSPHATE-GLASSES; PLATINUM; SOLUBILITY; MELTS; IMPURITIES
AB The pt(4+) optical spectra (16 600-50 000 cm(-1)) in a series of alkali/alkaline alumino-metaphosphate glasses are reported. The four observed spectral bands are assigned to the d-d transitions from the (1)A(1g) ground state to the T-3(1g) (similar to23 500 cm(-1)), T-3(2g) (similar to28 000 cm(-1)), T-1(1g) (similar to33 300 cm(-1)) and T-1(2g) (similar to40 000 cm(-1)) excited states assuming pt(4+) resides in a distorted octahedral site. The absorption band intensities are found to exist in two groups, with the low compositionally averaged modifier field strength (<3.5 Angstrom(-2)) having the greater absorption intensities. The ligand splitting energy and Racah parameter B vary between similar to38 000 and 40 000 cm(-1) and between similar to435 and 650 cm(-1), respectively, depending on the choice of modifier. The pt(4+) absorption coefficient, alpha, at 25 000 cm(-1) is correlated with the platinum concentration (ppm(w)) in a potassium magnesium-alumino-metaphosphate glass by the equation: [Pt] ppm(w) = 526alpha (cm(-1)). A comparison of relative Pt uptake during melting shows that the rare-earth doped potassium magnesium alumino-phosphate melt has the greatest uptake and is approximately 25 times greater than the concentration reported for the commercial silicate laser glass, ED-2. The effect of pt(4+) (0-860 ppm(w)) on fluorescence quenching rate from the Nd3+ F-4(3/2) state is small (k(A) approximate to 0.3 Hz/ppm(w)) in agreement with predictions based on the Forster-Dexter theory for dipolar energy transfer. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Missouri, Dept Ceram Engn, Rolla, MO 65409 USA.
   Lawrence Livermore Natl Lab, Laser Mat & Opt Technol Grp, Livermore, CA 94550 USA.
RP Brow, RK (reprint author), Univ Missouri, Dept Ceram Engn, 222 McNutt Hall, Rolla, MO 65409 USA.
NR 44
TC 4
Z9 5
U1 3
U2 16
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 MAY 1
PY 2003
VL 319
IS 1-2
BP 95
EP 108
DI 10.1016/S0022-3093(02)01962-2
PG 14
WC Materials Science, Ceramics; Materials Science, Multidisciplinary
SC Materials Science
GA 668NG
UT WOS:000182299600009
ER

PT J
AU Schrooten, J
   Meyer, B
   Martin, SW
   Borsa, F
AF Schrooten, J
   Meyer, B
   Martin, SW
   Borsa, F
TI Preparation and characterization of boron oxysulfide glasses
SO JOURNAL OF NON-CRYSTALLINE SOLIDS
LA English
DT Article
ID SHORT-RANGE ORDER; VIBRATIONAL-SPECTRA; THIN-FILMS; B-11 NMR; B2O3;
   CONDUCTIVITY; POLYCRYSTALS; BORATE
AB Stable, homogeneous xB(2)O(3) + (1 - x)B2S3 glasses were prepared between 0 less than or equal to x less than or equal to 0.80. It was not possible to prepare homogeneous, stable glasses of compositions 0.85 less than or equal to x less than or equal to 0.95 due to a strong exothermic enthalpy of mixing between the B2S3 and B2O3 phases. Raman and B-11 NMR spectroscopies, used to characterize the structure of the glasses, show that the boron oxide structures of B2O3 especially the six-membered (thioboroxol) rings, quickly diminish with increasing sulfide content, whereas the corresponding sulfide structures in B2S3 remain relatively intense as the oxide content is increased. Differential scanning calorimetry and density measurements, used to characterize the physical properties of the glasses, show that the physical properties of these boron oxysulfide glasses heavily favor the B2S3 properties regardless of the amount of B2O3 added to the system. It is hypothesized that the stability of the thioboroxol ring group relative to that of the BS3/2 trigonal group is a possible source of this behavior. The large heat of mixing for B2O3 rich glasses is associated with the formation of new mixed boron oxysulfide structures of composition BSiO3-i where 0 < i < 3. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
   Iowa State Univ, US Dept Energy, Ames Lab, Ames, IA 50011 USA.
RP Martin, SW (reprint author), Iowa State Univ, Dept Mat Sci & Engn, 3053 Gilman Hall, Ames, IA 50011 USA.
NR 21
TC 3
Z9 3
U1 0
U2 1
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 MAY 1
PY 2003
VL 319
IS 1-2
BP 136
EP 144
DI 10.1016/S0022-3093(02)01919-1
PG 9
WC Materials Science, Ceramics; Materials Science, Multidisciplinary
SC Materials Science
GA 668NG
UT WOS:000182299600013
ER

PT J
AU Senor, DJ
   Youngblood, GE
   Greenwood, LR
   Archer, DV
   Alexander, DL
   Chen, MC
   Newsome, GA
AF Senor, DJ
   Youngblood, GE
   Greenwood, LR
   Archer, DV
   Alexander, DL
   Chen, MC
   Newsome, GA
TI Defect structure and evolution in silicon carbide irradiated to 1
   dpa-SiC at 1100 degrees C
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID NEUTRON-IRRADIATION; THERMAL-CONDUCTIVITY; CERAMICS; DAMAGE
AB Transmission electron microscopy (TEM), swelling measurements, isochronal annealing, and thermal diffusivity testing were used to characterize the effects of radiation damage in SiC. Together, these techniques provided a comprehensive set of tools for observing and characterizing the structure and evolution of radiation-induced defects in SiC as a function of irradiation temperature and dose. In this study, two types of dense, crystalline, monolithic SiC were subjected to irradiation doses up to I dpa-SiC at a temperature of I 100 degreesC, as well as post-irradiation annealing up to 1500 degreesC. The microscopic defect structures observed by TEM were correlated to changes in the macroscopic dimensions, thermal diffusivity and thermal conductivity. The results demonstrated the value of using ultrapure beta-SiC as an effective reference material to characterize the nature of expected radiation damage in other, more complex, SiC-based materials such as SiC/SiC composites. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
   Lockheed Martin Corp, Schenectady, NY 12301 USA.
RP Senor, DJ (reprint author), Pacific NW Natl Lab, POB 999,MSIN P8-10, Richland, WA 99352 USA.
RI Greenwood, Lawrence/H-9539-2016
OI Greenwood, Lawrence/0000-0001-6563-0650
NR 26
TC 43
Z9 46
U1 1
U2 19
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 MAY 1
PY 2003
VL 317
IS 2-3
BP 145
EP 159
DI 10.1016/S0022-3115(03)00077-1
PG 15
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 672RJ
UT WOS:000182535000003
ER

PT J
AU Foster, JP
   Bunde, K
   Porter, DL
AF Foster, JP
   Bunde, K
   Porter, DL
TI Irradiation creep of annealed 304L stainless steel at low dose levels
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
AB A detailed analysis was performed with previously reported solution-annealed 304L irradiation creep data. The test was irradiated in EBR-II at a temperature of 390 degreesC to a maximum dose of 93.3 dpa. The test samples were unpressurized and pressurized tubes. The stress values covered the range of 69-188 MPa. Previous investigations of the data have focused on the high dose behavior. This evaluation performed a detailed evaluation of the low dose data. The results show that the swelling independent steady state irradiation creep coefficient is equal to 0.380 x 10(-6)/MPa-dpa. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Westinghouse Elect Co, Commercial Nucl Fuel Div, Columbia, SC 29250 USA.
   Argonne Natl Lab, Idaho Falls, ID 83401 USA.
RP Foster, JP (reprint author), Westinghouse Elect Co, Commercial Nucl Fuel Div, 5801 Bluff Rd,PO Drawer R, Columbia, SC 29250 USA.
NR 7
TC 6
Z9 6
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 MAY 1
PY 2003
VL 317
IS 2-3
BP 167
EP 174
DI 10.1016/S0022-3115(03)00083-7
PG 8
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 672RJ
UT WOS:000182535000005
ER

PT J
AU Dinh, LN
   McLean, W
   Schildbach, MA
   LeMay, JD
   Siekhaus, WJ
   Balooch, M
AF Dinh, LN
   McLean, W
   Schildbach, MA
   LeMay, JD
   Siekhaus, WJ
   Balooch, M
TI The nature and effects of the thermal stability of lithium hydroxide
SO JOURNAL OF NUCLEAR MATERIALS
LA English
DT Article
ID DECOMPOSITION
AB Temperature programmed decomposition and complimentary microscopy/spectroscopy techniques were performed on lithium hydroxide with micron-sized grains. The lithium hydroxide grains thermally decomposed into Li2O, releasing H2O, following a three dimensional phase boundary moving from the surface inward. The energy barriers measured for the decomposition of surface and near-surface lithium hydroxide are noticeably smaller than those of bulk counterpart. The conversion of Li2O grains back to lithium hydroxide during moisture exposure was also found to proceed from the surface inward such that surface states are filled before bulk states. In a different set of experiments, nanometer-scale composite grains composed of LiD inner cores and LiOH outer layers were observed to form on top of pressed polycrystalline LiD upon moisture exposure. A diffusion coefficient on the order of 10(-23) m(2)/s was measured for the diffusion controlled reaction of LiOH with LiD in the nanopowder at room temperature in a dry environment. The measured kinetics were used to model the evolution of the LiD/LiOH composite system in a dry environment. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Dinh, LN (reprint author), Lawrence Livermore Natl Lab, POB 808,L-356, Livermore, CA 94551 USA.
NR 11
TC 24
Z9 26
U1 1
U2 17
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 MAY 1
PY 2003
VL 317
IS 2-3
BP 175
EP 188
DI 10.1016/S0022-3115(03)00084-9
PG 14
WC Materials Science, Multidisciplinary; Nuclear Science & Technology
SC Materials Science; Nuclear Science & Technology
GA 672RJ
UT WOS:000182535000006
ER

PT J
AU Logan, J
   Volkow, ND
   Wang, GJ
   Franceschi, D
   Telang, F
   Levy, AV
   Ma, Y
   Maynard, L
AF Logan, J
   Volkow, ND
   Wang, GJ
   Franceschi, D
   Telang, F
   Levy, AV
   Ma, Y
   Maynard, L
TI The metabolic spectral signature method applied to alcohol intoxication
   in males and females.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 38
BP 12P
EP 13P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600039
ER

PT J
AU Volkow, ND
   Wang, GJ
   Fowler, JS
   Logan, J
   Telang, F
   Jayne, M
   Wong, C
   Gatley, SJ
   Ding, YS
   Pappas, N
   Swanson, JM
AF Volkow, ND
   Wang, GJ
   Fowler, JS
   Logan, J
   Telang, F
   Jayne, M
   Wong, C
   Gatley, SJ
   Ding, YS
   Pappas, N
   Swanson, JM
TI Evidence that methylphenidate enhances the increases in dopamine induced
   by salient stimuli in the human brain.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA.
   Univ Calif Irvine, Dept Pediat, Irvine, CA 92717 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 117
BP 37P
EP 37P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600118
ER

PT J
AU Qi, J
   Huesman, RH
   Reutter, BW
AF Qi, J
   Huesman, RH
   Reutter, BW
TI Comparison of different CT-based attenuation correction schemes for PET
   with respiratory motion.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Lawrence Berkeley Nat Lab, Dept Nuclear Med & Funct Imaging, Berkeley, CA USA.
RI Qi, Jinyi/A-1768-2010
OI Qi, Jinyi/0000-0002-5428-0322
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 121
BP 38P
EP 38P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600122
ER

PT J
AU Glass, J
   Gifford, AN
   Li, Z
   Tovar-Salazar, A
   Ding, YS
   Gatley, SJ
AF Glass, J
   Gifford, AN
   Li, Z
   Tovar-Salazar, A
   Ding, YS
   Gatley, SJ
TI An efficient method for coupling labeling intermediates with peptides or
   peptide nucleic acids via a bromoacetyl group.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 165
BP 51P
EP 51P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600166
ER

PT J
AU Zeng, GL
   Gullberg, GT
AF Zeng, GL
   Gullberg, GT
TI Cardiac SPECT using combined cone-beam and fan-beam collimation.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Utah, MIRL Radiol, Salt Lake City, UT 84112 USA.
   EO Lawrence Berkeley Nat Lab, Dept Nuc Med & Funct Imaging, Berkeley, CA USA.
NR 0
TC 4
Z9 4
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 204
BP 63P
EP 63P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600205
ER

PT J
AU Volkow, ND
   Wang, GJ
   Begleiter, H
   Porjesz, B
   Fowler, JS
   Logan, J
   Telang, F
   Gatley, SJ
   Ding, YS
   Wong, C
   Pappas, N
AF Volkow, ND
   Wang, GJ
   Begleiter, H
   Porjesz, B
   Fowler, JS
   Logan, J
   Telang, F
   Gatley, SJ
   Ding, YS
   Wong, C
   Pappas, N
TI Subjects with a genetic risk for alcoholism have decreased activity in
   the orbitofrontal cortex and high levels of DA D2 receptors.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL New Orleans, LA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA.
   SUNY, Brooklyn, NY USA.
NR 0
TC 2
Z9 2
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 213
BP 66P
EP 66P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600214
ER

PT J
AU Volkow, ND
   Newcorn, J
   Wang, GJ
   Solanto, M
   Sanders, M
   Fowler, JS
   Schultz, K
   Logan, J
   Gatley, SJ
   Ding, YS
   Wong, C
   Swanson, JM
AF Volkow, ND
   Newcorn, J
   Wang, GJ
   Solanto, M
   Sanders, M
   Fowler, JS
   Schultz, K
   Logan, J
   Gatley, SJ
   Ding, YS
   Wong, C
   Swanson, JM
TI Evidence of decreased brain dopamine function in never medicated adults
   with ADHD.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA.
   Mt Sinai Sch Med, Dept Psychiat, New York, NY USA.
   Univ Calif Irvine, Dept Pediat, Irvine, CA 92717 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 216
BP 67P
EP 67P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600217
ER

PT J
AU Schiffer, WK
   Alexoff, DL
   Logan, J
   Dewey, SL
AF Schiffer, WK
   Alexoff, DL
   Logan, J
   Dewey, SL
TI Understanding the fundamentals of radiotracer binding in the rodent
   dopaminergic system using simultaneous microPET and microdialysis
   techniques.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Stony Brook, NY 11794 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 225
BP 70P
EP 70P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600226
ER

PT J
AU Gatley, SJ
   Gifford, AN
   Fowler, JS
AF Gatley, SJ
   Gifford, AN
   Fowler, JS
TI Kinetic considerations for in vivo imaging of binding sites present at
   very low concentrations.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 227
BP 71P
EP 71P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600228
ER

PT J
AU Wymer, DC
   Green, TD
   Keppel, C
   Keiper, D
   Weisenberger, AG
   Majewski, S
AF Wymer, DC
   Green, TD
   Keppel, C
   Keiper, D
   Weisenberger, AG
   Majewski, S
TI Evaluation of clinically occult mammographic abnormalities using
   scintimammography with enhanced gamma camera imaging.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Florida, Shands Hosp, Dept Radiol, Gainesville, FL 32611 USA.
   Thomas Jefferson Nat Accelerator Fac, Tech Detector Grp, Newport News, VA USA.
   Hampton Univ, Dept Phys, Hampton, VA 23668 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 251
BP 78P
EP 78P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600252
ER

PT J
AU Marshall, RC
   VanBrocklin, HF
   O'Neil, JP
   Powers-Risius, P
   Reutter, BW
   Huesman, RH
AF Marshall, RC
   VanBrocklin, HF
   O'Neil, JP
   Powers-Risius, P
   Reutter, BW
   Huesman, RH
TI Kinetic analysis of 18F-fluorodihydrorotenone as a deposited myocardial
   flow tracer: Comparison to (201)thallium.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Calif Berkeley, Lawrence Berkeley Nat Lab, Dept Nucl Med & Function Imaging, Berkeley, CA 94720 USA.
   No California Hlth Care Syst, Martinez Vet Affairs, Martinez, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 282
BP 87P
EP 87P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600283
ER

PT J
AU Bal, H
   DiBella, EV
   Gullberg, GT
AF Bal, H
   DiBella, EV
   Gullberg, GT
TI Myocardial assessment with dynamic teboroxime SPECT in a reperfused
   canine model.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Utah, Salt Lake City, UT 84112 USA.
   Lawrence Berkeley Nat Lab, Dept Nucl Med & Function Imaging, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 369
BP 113P
EP 113P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600370
ER

PT J
AU Hattori, N
   Huang, SC
   Rassovsky, Y
   Wu, HM
   Glenn, TC
   Vespa, PM
   Phelps, ME
   Hovda, DA
   Bergsneider, M
AF Hattori, N
   Huang, SC
   Rassovsky, Y
   Wu, HM
   Glenn, TC
   Vespa, PM
   Phelps, ME
   Hovda, DA
   Bergsneider, M
TI FDG PET may predict long-term neuropsychological outcome after traumatic
   brain injury.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, DOE Ctr Mol Med, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, Neuropsychiat Inst & Hosp, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, David Geffen Sch Med, Brain Injury Res Ctr, Div Neurosurg, Los Angeles, CA USA.
RI Hattori, Naoya/G-2298-2012
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 384
BP 118P
EP 118P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600385
ER

PT J
AU Vaska, P
   Alexoff, DL
AF Vaska, P
   Alexoff, DL
TI Effects of natural LSO radioactivity on microPET quantitation.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
NR 0
TC 4
Z9 4
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 451
BP 138P
EP 138P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600452
ER

PT J
AU Choong, WS
   Moses, WW
   Zaikin, R
   Suzuki, M
   Mandelli, E
   Mergui, S
AF Choong, WS
   Moses, WW
   Zaikin, R
   Suzuki, M
   Mandelli, E
   Mergui, S
TI Small field of view gamma camera for lymph node scintigraphy.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Lawrence Berkeley Nat Lab, Dept Nucl Med & Function Imaging, Berkeley, CA USA.
   Capintec Inc, Ramsey, NJ USA.
NR 0
TC 0
Z9 0
U1 0
U2 2
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 454
BP 139P
EP 139P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600455
ER

PT J
AU Veress, AI
   Weiss, JA
   Klein, GJ
   Gullberg, GT
AF Veress, AI
   Weiss, JA
   Klein, GJ
   Gullberg, GT
TI Comparison of 3D left ventricular deformation predicted by hyperelastic
   Warping of PET and cine-MRI images.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Utah, Dept Bioengn, Salt Lake City, UT 84112 USA.
   Univ Utah, Dept Radiol, Med Imaging Res Lab, Salt Lake City, UT 84132 USA.
   Lawrence Berkeley Nat Lab, Dept Nucl Med & Function Imaging, Berkeley, CA USA.
   Quantificare SA, Sophia Antipolas, France.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 460
BP 141P
EP 141P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600461
ER

PT J
AU Shen, S
   Forero, A
   LoBuglio, AF
   Breitz, H
   Khazaeli, MB
   Fisher, DR
   Meredith, RF
AF Shen, S
   Forero, A
   LoBuglio, AF
   Breitz, H
   Khazaeli, MB
   Fisher, DR
   Meredith, RF
TI Patient-specific radiation dosimetry of Pretarget radioimmunotherapy
   using CC-49 fusion protein in patients with gastrointestinal
   malignancies.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Alabama, Ctr Comprehens Canc, Birmingham, AL 35294 USA.
   NEORX Corp, Seattle, WA 98119 USA.
   Pacific NW Lab, Richland, WA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 494
BP 151P
EP 152P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600495
ER

PT J
AU Siantar, CLH
   DeNardo, GL
   DeNardo, SJ
   Seaborg, GT
AF Siantar, CLH
   DeNardo, GL
   DeNardo, SJ
   Seaborg, GT
TI Impact of nodal regression on radiation dose for lymphoma patients
   following radioimmunotherapy.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, Livermore, CA USA.
   Univ Calif Davis, Mol Canc Inst, Sacramento, CA 95817 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 495
BP 152P
EP 152P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600496
ER

PT J
AU Smith, MF
   Raylman, RR
   Majewski, S
AF Smith, MF
   Raylman, RR
   Majewski, S
TI Positron emission mammotomography (PEM-T).
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Thomas Jefferson Nat Accelerator Facil, Div Phys, Newport News, VA USA.
   W Virginia Univ, Dept Radiol, Morgantown, WV 26506 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 526
BP 162P
EP 162P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600527
ER

PT J
AU Alexoff, DL
   Fowler, JS
   Logan, J
AF Alexoff, DL
   Fowler, JS
   Logan, J
TI Feasibility studies of MAO B imaging in the mouse using the microPET R4
   with [C-11]L-deprenyl and deuterium substituted [C-11]L-deprenyl.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 782
BP 214P
EP 215P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600699
ER

PT J
AU Alexoff, DL
   Fowler, JS
   Vaska, P
   King, P
AF Alexoff, DL
   Fowler, JS
   Vaska, P
   King, P
TI Virtual dissection with the microPET - R4: Validation of whole body
   imaging in the mouse.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 780
BP 214P
EP 214P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600697
ER

PT J
AU Ding, YS
   Mueller, M
   Schwaegler, M
   Alexoff, D
   Roesch, F
   Fowler, JS
   Volkow, ND
AF Ding, YS
   Mueller, M
   Schwaegler, M
   Alexoff, D
   Roesch, F
   Fowler, JS
   Volkow, ND
TI PET studies of ephedrine and pseudoephedrine
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
   Univ Mainz, Inst Kernchem, D-6500 Mainz, Germany.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 798
BP 219P
EP 219P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600715
ER

PT J
AU Fowler, JS
   Wang, GJ
   Volkow, ND
   Telang, F
   Logan, J
   Pappas, N
   Shea, C
   Garza, V
   Xu, Y
   Ding, YS
   Ferrieri, R
   Alexoff, D
   Zhu, W
AF Fowler, JS
   Wang, GJ
   Volkow, ND
   Telang, F
   Logan, J
   Pappas, N
   Shea, C
   Garza, V
   Xu, Y
   Ding, YS
   Ferrieri, R
   Alexoff, D
   Zhu, W
TI Evidence that smokers have reduced monoamine oxidase B in peripheral
   organs.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
   SUNY Stony Brook, Stony Brook, NY 11794 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 800
BP 220P
EP 220P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600717
ER

PT J
AU Gerasimov, MR
   Ferrieri, R
   Muller, R
   Alexoff, D
   Logan, J
   Dewey, SL
AF Gerasimov, MR
   Ferrieri, R
   Muller, R
   Alexoff, D
   Logan, J
   Dewey, SL
TI Comparison of brain pharmacokinetics of two inhalants using PET.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 802
BP 220P
EP 220P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600719
ER

PT J
AU Biegon, A
   Budinger, TF
   Hanrahan, SM
   Mankoff, DA
   O'Neil, JP
   VanBrocklin, HF
AF Biegon, A
   Budinger, TF
   Hanrahan, SM
   Mankoff, DA
   O'Neil, JP
   VanBrocklin, HF
TI Evaluation of ligands for estrogen receptor imaging in the brain
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Lawrence Berkeley Nat Lab, Berkeley, CA USA.
   Univ Washington, Seattle, WA 98195 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 809
BP 222P
EP 223P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600726
ER

PT J
AU Hattori, N
   Huang, SC
   Wu, HM
   Liao, WH
   Yu, CL
   Glenn, TC
   Vespa, PM
   Phelps, ME
   Hovda, DA
   Bergsneider, M
AF Hattori, N
   Huang, SC
   Wu, HM
   Liao, WH
   Yu, CL
   Glenn, TC
   Vespa, PM
   Phelps, ME
   Hovda, DA
   Bergsneider, M
TI Reduced oxygen metabolism in pericontusional low-density areas acutely
   after traumatic brain injury.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Univ Calif Los Angeles, David Geffen Sch Med, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, DOE Ctr Mol Med, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, DOE Ctr Mol Med, Los Angeles, CA 90024 USA.
   Univ Calif Los Angeles, David Geffen Sch Med, Div Neurosurg, Brain Injury Res Ctr, Los Angeles, CA 90024 USA.
RI Hattori, Naoya/G-2298-2012
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 885
BP 245P
EP 245P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600802
ER

PT J
AU Wang, GJ
   Volkow, ND
   Telang, F
   Jayne, M
   Fowler, JS
   Ma, Y
   Rao, M
   Zhu, W
   Wong, C
   Pappas, N
   Geliebter, A
AF Wang, GJ
   Volkow, ND
   Telang, F
   Jayne, M
   Fowler, JS
   Ma, Y
   Rao, M
   Zhu, W
   Wong, C
   Pappas, N
   Geliebter, A
TI Motivation for food and orbitofrontal cortex activation during food
   presentation.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL New Orleans, LA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA.
   SUNY, Dept Math Appl, Upton, NY USA.
   St Lukes Roosevelt Hosp, Dept Med, New York, NY 10025 USA.
   St Lukes Roosevelt Hosp, Dept Psychiat, New York, NY 10025 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 890
BP 246P
EP 247P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600807
ER

PT J
AU Wang, GJ
   Volkow, ND
   Telang, F
   Jayne, M
   Fowler, JS
   Ma, Y
   Rao, M
   Zhu, W
   Pappas, N
   Ding, YS
   Gatley, SJ
AF Wang, GJ
   Volkow, ND
   Telang, F
   Jayne, M
   Fowler, JS
   Ma, Y
   Rao, M
   Zhu, W
   Pappas, N
   Ding, YS
   Gatley, SJ
TI Metabolic changes during methylphenidate challenge in alcoholics.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Psychiat, Stony Brook, NY 11794 USA.
   SUNY Stony Brook, Dept Appl Math, Stony Brook, NY 11794 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 898
BP 249P
EP 249P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600815
ER

PT J
AU Qi, YJ
   Gilland, KL
   Tsui, BM
   Frey, EC
   Gullberg, GT
AF Qi, YJ
   Gilland, KL
   Tsui, BM
   Frey, EC
   Gullberg, GT
TI Evaluation of data acquisition geometries and strategies for multi-head
   SPECT systems for myocardial SPECT imaging.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Johns Hopkins Med Inst, Dept Radiol, Baltimore, MD 21205 USA.
   Lawrence Berkeley Nat Lab, Dept Nucl Med & Funct Imaging, Berkeley, CA USA.
RI Qi, Yujin/C-9595-2014
OI Qi, Yujin/0000-0002-1929-1624
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 997
BP 278P
EP 278P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600914
ER

PT J
AU Li, Z
   Ding, YS
   Fowler, JS
   Xu, Y
   Shea, C
   Garza, V
   Pyatt, B
   Gifford, AN
   Gatley, SJ
   Makriyannis, A
AF Li, Z
   Ding, YS
   Fowler, JS
   Xu, Y
   Shea, C
   Garza, V
   Pyatt, B
   Gifford, AN
   Gatley, SJ
   Makriyannis, A
TI Synthesis of fluorine-18 and carbon-11 labeled cannabinoid receptor
   radioligands for PET studies.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   Univ Connecticut, Storrs, CT 06269 USA.
NR 0
TC 2
Z9 2
U1 0
U2 2
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 1052
BP 293P
EP 294P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729600969
ER

PT J
AU Mausner, LF
   Bars, E
   Hock, J
   Carty, J
AF Mausner, LF
   Bars, E
   Hock, J
   Carty, J
TI An innovative high intensity solid target for simultaneous production of
   Co-57 and Cd-109.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL New Orleans, LA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Collider Accelerator Dept, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   SUNY Buffalo, Dept Nucl Med, Buffalo, NY USA.
   United States Dept Energy, Office Isotopes Med & Sci, Germantown, MD USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 1101
BP 307P
EP 308P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729601018
ER

PT J
AU Srivastava, SC
   Toporov, Y
   Andreev, O
   Vakhetov, F
   Meinken, GE
   Karelin, Y
AF Srivastava, SC
   Toporov, Y
   Andreev, O
   Vakhetov, F
   Meinken, GE
   Karelin, Y
TI Optimization of the reactor production of tin-117m for therapeutic use.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Res Inst Atom Reactors, Ulyanovsk, Russia.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 1105
BP 309P
EP 309P
PG 1
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729601022
ER

PT J
AU Srivastava, SC
   Li, Z
AF Srivastava, SC
   Li, Z
TI Toxicology studies in mice of the synthetic 1 : 1 therapeutic agent
   tin-117m (4+) DTPA.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL NEW ORLEANS, LOUISIANA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
NR 0
TC 0
Z9 0
U1 0
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 MAY
PY 2003
VL 44
IS 5
SU S
MA 1165
BP 325P
EP 326P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729601082
ER

PT J
AU Benveniste, HD
   Fowler, JS
   Rooney, WD
   Moller, DH
   Backus, WW
   Warner, D
   Carter, P
   King, P
   Scharf, B
   Alexoff, DL
   Volkow, ND
AF Benveniste, HD
   Fowler, JS
   Rooney, WD
   Moller, DH
   Backus, WW
   Warner, D
   Carter, P
   King, P
   Scharf, B
   Alexoff, DL
   Volkow, ND
TI Maternal-fetal in vivo imaging: A combined PET and MRI study.
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Meeting Abstract
CT 50th Annual Meeting of the Society-of-Nuclear-Medicine
CY JUN 21-25, 2003
CL New Orleans, LA
SP Soc Nucl Med
C1 Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Anesthesiol, Stony Brook, NY 11794 USA.
   SUNY, Animal Fac, Brooklyn, NY 11794 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
SU S
MA 1239
BP 346P
EP 347P
PG 2
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 676AK
UT WOS:000182729601156
ER

PT J
AU Akabani, G
   Kennel, SJ
   Zalutsky, MR
AF Akabani, G
   Kennel, SJ
   Zalutsky, MR
TI Microdosimetric analysis of alpha-particle-emitting targeted
   radiotherapeutics using histological images
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Article
DE targeted radiotherapy; radioimmunotherapy; alpha-particle; Bi-213;
   At-211; autoradiography
ID CHROMOSOMAL INSTABILITY; RADIONUCLIDE THERAPY; COMPUTED-TOMOGRAPHY;
   RADIOIMMUNOTHERAPY; DOSIMETRY; CELLS; LUNG; BI-213; RADIATION; EMITTERS
AB The purpose of this study was to evaluate the therapeutic efficacy and limitations of alpha-particle-emitting radiolabeled compounds by means of 2-dimensional histological images and distribution of activity on a microscopic level. Methods: A microdosimetric approach based on histological images is used to analyze the therapeutic effectiveness of alpha-particle-emitting At-211 and Bi-213 conjugated to 201 B monoclonal antibody (mAb), which is reactive with murine lung blood vessels for the treatment of EMT-6 lung tumor colonies in nude mice. Autoradiography images were used to define the tissue morphology and activity distribution within lung tissues. Two animal groups were studied: Group A consisted of animals bearing small tumors (<130 mum) and group B consisted of larger tumors (<600 mum). Probability density functions (pdf) described the variability in average absorbed dose and survival probability among normal and tumor target cells and, in turn, were used to assess the survival fraction of tumor and normal tissue. Results: The average absorbed dose to tumor cells per unit cumulated activity concentration for animals in group A was 1.10 X 10(-3) and 1.37 X 10(-3) Gy g MBq(-1) s(-1) for At-211 and Bi-213, respectively, and for animals in group B was 3.8 X 10(-4) and 5.6 X 10(-4) Gy g MBq(-1) s(-1) for At-211 and Bi-213, respectively. The fraction of tumor cells that received a zero absorbed dose for animals in group A was 0.04% for Bi-213 and 0.2% for At-211 and for animals in group B was 25% for Bi-213 and 31% for At-211. Both Bi-213- and At-211-labeled 201B mAb were effective therapies for animals with small tumors, where predicted therapeutic effectiveness was consistent with experimental findings; however, they were ineffective for animals with larger tumors. Conclusion: Microdosimetric methods based on knowledge of tissue morphology and activity distribution on a small-scale level can be a useful tool for evaluating a priori the therapeutic efficacy and limitations of targeted alpha-particle endoradiotherapeutic strategies.
C1 Duke Univ, Med Ctr, Dept Radiol, Durham, NC 27710 USA.
   Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN USA.
RP Akabani, G (reprint author), Duke Univ, Med Ctr, Dept Radiol, Box 3808, Durham, NC 27710 USA.
FU NCI NIH HHS [CA70164, CA42324]
NR 40
TC 17
Z9 18
U1 0
U2 0
PU SOC NUCLEAR MEDICINE INC
PI RESTON
PA 1850 SAMUEL MORSE DR, RESTON, VA 20190-5316 USA
SN 0161-5505
J9 J NUCL MED
JI J. Nucl. Med.
PD MAY
PY 2003
VL 44
IS 5
BP 792
EP 805
PG 14
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 675XZ
UT WOS:000182724000024
PM 12732682
ER

PT J
AU Alexoff, DL
   Vaska, P
   Marsteller, D
   Gerasimov, T
   Li, J
   Logan, J
   Fowler, JS
   Taintor, NB
   Thanos, PK
   Volkow, ND
AF Alexoff, DL
   Vaska, P
   Marsteller, D
   Gerasimov, T
   Li, J
   Logan, J
   Fowler, JS
   Taintor, NB
   Thanos, PK
   Volkow, ND
TI Reproducibility of C-11-raclopride binding in the rat brain measured
   with the MicroPET R4: Effects of scatter correction and tracer specific
   activity
SO JOURNAL OF NUCLEAR MEDICINE
LA English
DT Article
DE microPET; rat brain; dopamine receptor; raclopride
ID POSITRON-EMISSION-TOMOGRAPHY; STRIATAL DOPAMINE-D-2 RECEPTORS; SMALL
   LABORATORY-ANIMALS; C-11 RACLOPRIDE BINDING; IN-VIVO;
   GLUCOSE-METABOLISM; HARDERIAN GLANDS; PET SYSTEM; EX-VIVO; L-DOPA
AB A new generation of commercial animal PET cameras may accelerate drug development by streamlining preclinical testing in laboratory animals. However, little information on the feasibility of using these machines for quantitative PET in small animals is available. Here we investigate the reproducibility of microPET imaging of C-11-raclopride in the rat brain and the effects of tracer-specific activity and photon scatter correction on measures of D2 receptor (D2R) availability. Methods: Sprague-Dawley rats (422 +/- 29 g; n = 7) were anesthetized with ketamine/xylazine and catheterized for tail vein injection of C-11-raclopride. Each animal was positioned prone in the microPET, centering the head in the field of view. MicroPET data was collected for 60 min-starting at C-11-raclopride injection-and binned into 24 time frames (6 x 10 s, 3 x 20 s, 8 x 60 s, 4 x 200 s, 3 x 600 s). In 3 studies, C-11-raclopride was administered a second time in the same animal, with 2-4 h between injections. In a fourth animal, raclopricle (1 mg/kg) was coinjected with C-11-raclopride for the second injection. Three rats received a single dose of C-11-raclopride. The range of doses for all studies was 6.11-18.54 MBq (165-501 muCi). The specific activity at injection was 4.07-48.1 GBq/mumol (0.11-1.3 Ci/mumol). Region-of-interest analysis was performed and the distribution volume ratio (DVR) was computed for striatum/cerebellum using sinograms uncorrected and corrected for scatter using a tail-fit method. Results: Test-retest results showed that the C-11-raclopride microPET DVR was reproducible (change in DVR = -8.3% +/- 4.4%). The average DVR from 6 rats injected with high specific activity (<4 nmol/kg) was 2.43 +/- 0.19 (coefficient of variation = 8%). The DVR for the blocking study was 1.23. The DVR depended on the mass of tracer "C-raclopride injected for doses >1.5 nmol/kg. Scatter fractions within the rat head were similar to25%-45% resulting in an average increase of DVR of 3.5% (range, 0%-10%) after correction. Conclusion: This study shows that the C-11-raclopride microPET-derived DVR is reproducible and suitable for studying D2R availability in the rat brain. MicroPET sensitivity was sufficient to determine reproducible DVRs from C-11-raclopride injections of 9.25 MBq (similar to250 muCi). However, the effect of tracer mass on the DVR should be considered for studies using more than similar to1-2 nmol/kg raclopride, and scatter correction has a measurable impact on the results.
C1 Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Dept Med, Upton, NY 11973 USA.
   SUNY Stony Brook, Dept Pharmacol Sci, Stony Brook, NY 11794 USA.
   SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA.
RP Alexoff, DL (reprint author), Brookhaven Natl Lab, Dept Chem, Bldg 555, Upton, NY 11973 USA.
NR 35
TC 62
Z9 63
U1 0
U2 2
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 MAY
PY 2003
VL 44
IS 5
BP 815
EP 822
PG 8
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 675XZ
UT WOS:000182724000026
PM 12732684
ER

PT J
AU Yui, M
   Rai, D
   Ochs, M
   Shibata, M
AF Yui, M
   Rai, D
   Ochs, M
   Shibata, M
TI Applicability of thermodynamic database of radioactive elements
   developed for the Japanese performance assessment of HLW repository
SO JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY
LA English
DT Article
DE thermodynamic database; solubility; speciation; radioactive elements;
   solubility limiting solid phase; redox state; cementitious condition;
   HLW disposal
ID AQUEOUS K+-HCO3--CO32--OH--H2O SYSTEM; DOPED GLASS; SOLUBILITY; MODEL;
   22-DEGREES-C; PUO2(AM); THORIUM
AB 1999 Japan Nuclear Cycle Development Institute (JNC) published a second progress report (also known as H12 report) on high-level radioactive waste (HLW) disposal in Japan (INC 1999). This report helped to develop confidence in the selected HLW disposal system and to establish the implementation body in 2000 for the disposal of HLW. JNC developed an in-house thermodynamic database for radioactive elements for performance analysis of the engineered barrier system (EBS) and the geosphere for H12 report. This paper briefly presents the status of the JNC's thermodynamic database and its applicability to perform realistic analyses of the solubilities of radioactive elements, evolution of solubility-limiting solid phases, predictions of the redox state of Pu in the neutral pH range under reducing conditions, and to estimate solubilities of radioactive elements in cementitious conditions.
C1 Japan Nucl Cycle Dev Inst, Naka, Ibaraki 3191194, Japan.
   Pacific NW Natl Lab, Richland, WA 99352 USA.
   BMG Engn Ltd, CH-8952 Zurich, Switzerland.
RP Yui, M (reprint author), Japan Nucl Cycle Dev Inst, 4-33 Muramatsu, Naka, Ibaraki 3191194, Japan.
NR 25
TC 4
Z9 5
U1 0
U2 3
PU ATOMIC ENERGY SOC JAPAN
PI TOKYO
PA 1-1-13 SHIMBASHI MINATO-KU, TOKYO, 105, JAPAN
SN 0022-3131
J9 J NUCL SCI TECHNOL
JI J. Nucl. Sci. Technol.
PD MAY
PY 2003
VL 40
IS 5
BP 356
EP 362
DI 10.3327/jnst.40.356
PG 7
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 699YH
UT WOS:000184084400010
ER

PT J
AU Keen, CL
   Jue, T
   Tran, CD
   Vogel, J
   Downing, RG
   Iyengar, V
   Rucker, RB
AF Keen, CL
   Jue, T
   Tran, CD
   Vogel, J
   Downing, RG
   Iyengar, V
   Rucker, RB
TI Analytical methods: Improvements, advancements and new horizons
SO JOURNAL OF NUTRITION
LA English
DT Article; Proceedings Paper
CT 11th International Symposium on Trace Elements in Man and Animals
CY JUN 02-06, 2002
CL BERKELEY, CALIFORNIA
DE fluorescent probes; nuclear magnetic resonance; inductively coupled
   plasma-mass spectrometry accelerator mass spectrometry; metrology
ID ACCELERATOR MASS-SPECTROMETRY; HUMAN SKELETAL-MUSCLE; FLUORESCENT-PROBE;
   CALCIUM CHANNELS; TRACE-ELEMENTS; FREE ZINC; CELLS; NMR;
   METALLOTHIONEIN; SPECTROSCOPY
AB The workshop and exhibits dealing with analytical methods were selected to highlight the current state of the art in elemental analysis. The presentations in the first part of the workshop described approaches and advances important to the analysis of trace minerals. These presentations included: 1) two approaches to mass spectrometry, inductively coupled plasma and accelerator mass spectrometry; 2) use of nuclear magnetic resonance in studies of mineral function; and 3) the use and limitations of fluorescent probes in studies of metal uptake and regulation. In, the second part of the workshop, the International Atomic Energy's contributions to nutritional "metrology" were described. Advances in instrumentation over the past decade have led to extraordinary improvements in the precision and sensitivity of mineral analyses. The ability to address isotopic speciation at such, low levels sets the stage for numerous novel approaches in the assessment of trace mineral function.
C1 Univ Calif Davis, Dept Nutr, Davis, CA 95616 USA.
   Univ Calif Davis, Sch Med, Davis, CA 95616 USA.
   Womens & Childrens Hosp, Gastroenterol Unit, Adelaide, SA, Australia.
   Lawrence Livermore Natl Lab, Ctr Accelerator Mass Spectrometry, Livermore, CA 94550 USA.
   RGD Res Inc, Niskayuna, NY USA.
   Atom Energy Agcy, Nutr & Hlth Related Environm Studies Sect, Vienna, Austria.
RP Keen, CL (reprint author), Univ Calif Davis, Dept Nutr, Davis, CA 95616 USA.
RI Tran, Cuong/H-8612-2013
OI Tran, Cuong/0000-0001-9220-2715
NR 34
TC 6
Z9 7
U1 1
U2 2
PU AMER INST NUTRITION
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-3166
J9 J NUTR
JI J. Nutr.
PD MAY
PY 2003
VL 133
IS 5
SU 1
BP 1574S
EP 1578S
PG 5
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA 677VD
UT WOS:000182828100035
PM 12730469
ER

PT J
AU Karonis, NT
   Toonen, B
   Foster, I
AF Karonis, NT
   Toonen, B
   Foster, I
TI MPICH-G2: A Grid-enabled implementation of the Message Passing Interface
SO JOURNAL OF PARALLEL AND DISTRIBUTED COMPUTING
LA English
DT Article
DE MPI; Grid computing; message passing; Globus Toolkit; MPICH-G2
ID HIGH-PERFORMANCE; COMMUNICATION; STANDARD; MPI
AB Application development for distributed-computing "Grids" can benefit from tools that variously hide or enable application-level management of critical aspects of the heterogeneous environment. As part of an investigation of these issues, we have developed MPICH-G2, a Grid-enabled implementation of the Message Passing Interface (MPI) that allows a user to run MPI programs across multiple computers, at the same or different sites, using the same commands that would be used on a parallel computer. This library extends the Argonne MPICH implementation of MPI to use services provided by the Globus Toolkit for authentication, authorization, resource allocation, executable staging, and I/O, as well as for process creation, monitoring, and control. Various performance-critical operations, including startup and collective operations, are configured to exploit network topology information. The library also exploits MPI constructs for performance management; for example, the MPI communicator construct is used for application-level discovery of, and adaptation to, both network topology and network quality-of-service mechanisms. We describe the MPICH-G2 design and implementation, present performance results, and review application experiences, including record-setting distributed simulations. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 No Illinois Univ, Dept Comp Sci, De Kalb, IL 60115 USA.
   Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.
   Univ Chicago, Chicago, IL 60637 USA.
RP No Illinois Univ, Dept Comp Sci, De Kalb, IL 60115 USA.
EM karonis@niu.edu; toonen@mcs.anl.gov; foster@mcs.anl.gov
NR 44
TC 260
Z9 266
U1 3
U2 12
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0743-7315
EI 1096-0848
J9 J PARALLEL DISTR COM
JI J. Parallel Distrib. Comput.
PD MAY
PY 2003
VL 63
IS 5
BP 551
EP 563
DI 10.1016/S0743-7315(03)00002-9
PG 13
WC Computer Science, Theory & Methods
SC Computer Science
GA 694AE
UT WOS:000183749900005
ER

PT J
AU Minkoff, SE
   Stone, CM
   Bryant, S
   Peszynska, M
   Wheeler, MF
AF Minkoff, SE
   Stone, CM
   Bryant, S
   Peszynska, M
   Wheeler, MF
TI Coupled fluid flow and geomechanical deformation modeling
SO JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
LA English
DT Article
DE coupled processes; simulation; mechanics; flow; deformation; petroleum
   engineering
ID CENTERED FINITE-DIFFERENCES; POROUS-MEDIA; RESERVOIR SIMULATION;
   ELLIPTIC PROBLEMS; MULTIPHASE FLOW; OIL-RESERVOIRS; PERMEABILITY
AB Accurate prediction of reservoir production in structurally weak geologic areas requires both mechanical deformation and fluid flow modeling. Loose staggered-in-time coupling of two independent flow and mechanics simulators captures much of the complex physics at a substantially reduced cost. Two 3-D finite element simulators-Integrated Parallel Accurate Reservoir Simulator (IPARS) for flow and JAS3D for mechanics-together model multiphase fluid flow in reservoir rocks undergoing deformation ranging from linear elasticity to large, nonlinear inelastic compaction. The loose coupling algorithm uses a high-level driver to call the flow simulator for a set of time steps with fixed reservoir properties. Pore pressures from flow are used as loads for the geomechanics code in the determination of stresses, strains, and displacements. The mechanics-derived strain is used to calculate changes to the reservoir parameters (porosity and permeability) for the next set of flow time steps. Mass is conserved in the coupled code despite dynamically changing reservoir parameters via a modification to the Newton system for the flow equations, and an approximate rock compressibility becomes a useful preconditioner to help with convergence of the modified flow equations. Two numerical experiments illustrate the accuracy of the coupled code. The first example is a quarter-five-spot waterflood undergoing poroelastic deformation, which is validated against a fully coupled simulator. Vertical displacements at the well locations match to within 10%. Moreover, experimentation shows that 13 mechanics time steps (taken over the course of 5 years of simulation time) were sufficient to achieve this result (a substantial cost savings over full coupling in which both the mechanics and flow equations must be solved at each time step). The second numerical example is based on real data from the Belridge Field in California, which illustrates one of the complex plastic constitutive relationships available in the coupled code. The results mimic behavior which was observed in the field. The coupled code serves as a prototype for loosely coupling together any two preexisting simulators modeling diverse physics. This technique produces a coupled code relatively quickly and inexpensively and has the advantage of accurately modeling complex nonlinear phenomena often observed in a real field but difficult to capture with a fully coupled simulator. Further, the code has produced promising results when used for time-lapse studies of compactible reservoirs. Crown Copyright (C) 2003 Published by Elsevier Science B.V. All rights reserved.
C1 Univ Maryland, Dept Math & Stat, Baltimore, MD 21250 USA.
   Sandia Natl Labs, Computat Solid Mech & Struct Dynam Dept 9142, Albuquerque, NM 87185 USA.
   Univ Texas, TICAM, Ctr Subsurface Modeling, Austin, TX 78712 USA.
RP Minkoff, SE (reprint author), Univ Maryland, Dept Math & Stat, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
RI Kipke, Daryl/A-2167-2009
NR 48
TC 77
Z9 83
U1 5
U2 22
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-4105
J9 J PETROL SCI ENG
JI J. Pet. Sci. Eng.
PD MAY
PY 2003
VL 38
IS 1-2
BP 37
EP 56
DI 10.1016/S0920-4105(03)00021-4
PG 20
WC Energy & Fuels; Engineering, Petroleum
SC Energy & Fuels; Engineering
GA 677JE
UT WOS:000182802900004
ER

PT J
AU Tanner, DD
   Kandanarachchi, P
   Das, NC
   Franz, JA
AF Tanner, DD
   Kandanarachchi, P
   Das, NC
   Franz, JA
TI Absolute rates of the solution-phase addition of atomic hydrogen to a
   vinyl ether and a vinyl ester: Effect of oxygen substitution on hydrogen
   atom reactivity with olefins
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID RATE CONSTANTS; ABSTRACTION
AB The reactions of vinyl butyl ether and vinyl butyrate with atomic hydrogen and deuterium lead to addition at the terminal position of the olefins. This observation is consistent with the reactions carried out earlier with other olefins. Both of the absolute rates of addition to vinylbutyl ether and vinyl butyrate, in acetone and hexane, were measured at several temperatures. The relative rates are consistent with only modest stabilization of the transition state of the radical adduct by the alpha-O substituent compared with that of hydrogen atom addition to 1-octene. The relative rates measured in acetone and hexane indicate no significant differential solvation of the ground state relative to the transition structures of the hydrogen atom addition. The kinetics reveal that the early transition states for hydrogen atom addition exhibit little selectivity (vinyl ether versus simple olefin) in either the abstraction of hydrogen alpha to the oxygen or by terminal addition to the olefinic ether and reflects the modest influence of the increased enthalpy of reaction associated with resonance stabilization by the oxygen substituent at the developing radical site.
C1 Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada.
   Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Tanner, DD (reprint author), Univ Alberta, Dept Chem, Edmonton, AB T6G 2G2, Canada.
NR 18
TC 0
Z9 0
U1 0
U2 1
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD MAY 1
PY 2003
VL 107
IS 17
BP 3054
EP 3063
DI 10.1021/jp021963i
PG 10
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 671XQ
UT WOS:000182490900009
ER

PT J
AU Wang, LG
   Sob, M
   Zhang, ZY
AF Wang, LG
   Sob, M
   Zhang, ZY
TI Instability of higher-energy phases in simple and transition metals
SO JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
LA English
DT Article
DE metal; ab initio calculations; phase transition; instability;
   pseudomorphic films
ID CENTERED-TETRAGONAL COPPER; ELASTIC-CONSTANTS; ELECTRON-GAS;
   STRUCTURAL-PROPERTIES; LATTICE STABILITIES; METASTABLE PHASES;
   EPITAXIAL-GROWTH; EXTENDED DEFECTS; LOCAL STABILITY; BCC STRUCTURE
AB We perform full-potential first-principles total energy calculations for several simple and transition metals along three distinct phase transformation paths, i.e. the tetragonal, trigonal and hexagonal paths. Our results show that higher-energy phases, such as the bcc structure for Al, Cu and Ti and the fcc structure for Nb, Mo, Ta and W, are always unstable with respect to one or more of transformation modes. Some local minima along the total energy profiles are found to correspond to the structures not dictated by the symmetry. We discuss the most interesting problem why a higher-energy phase may be stabilized in a pseudomorphic film. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Acad Sci Czech Republic, Inst Phys Mat, CZ-61662 Brno, Czech Republic.
   Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
RP Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
EM lwang@nrel.gov
RI Sob, Mojmir/D-1936-2012; Sob, Mojmir/G-6865-2011
NR 50
TC 26
Z9 26
U1 1
U2 8
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-3697
EI 1879-2553
J9 J PHYS CHEM SOLIDS
JI J. Phys. Chem. Solids
PD MAY
PY 2003
VL 64
IS 5
BP 863
EP 872
AR PII S0022-3697(02)00420-1
DI 10.1016/S0022-3697(02)00420-1
PG 10
WC Chemistry, Multidisciplinary; Physics, Condensed Matter
SC Chemistry; Physics
GA 647JP
UT WOS:000181089900020
ER

PT J
AU Chilingarian, A
   Avakyan, K
   Babayan, V
   Bostanjyan, N
   Chilingarian, S
   Eganov, V
   Hovhanissyan, A
   Karapetyan, G
   Gevorgyan, N
   Gharagyozyan, G
   Ghazaryan, S
   Garyaka, A
   Ivanov, V
   Martirosian, H
   Martirosov, R
   Melkumyan, L
   Sogoyan, H
   Sokhoyan, S
   Tserunyan, S
   Vardanyan, A
   Yeremian, A
   Zazyan, M
AF Chilingarian, A
   Avakyan, K
   Babayan, V
   Bostanjyan, N
   Chilingarian, S
   Eganov, V
   Hovhanissyan, A
   Karapetyan, G
   Gevorgyan, N
   Gharagyozyan, G
   Ghazaryan, S
   Garyaka, A
   Ivanov, V
   Martirosian, H
   Martirosov, R
   Melkumyan, L
   Sogoyan, H
   Sokhoyan, S
   Tserunyan, S
   Vardanyan, A
   Yeremian, A
   Zazyan, M
TI Aragats space-environmental centre: status and SEP forecasting
   possibilities
SO JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
LA English
DT Article; Proceedings Paper
CT 18th European Cosmic Ray Symposium
CY JUL 08-12, 2002
CL MOSCOW, RUSSIA
ID SOLAR COSMIC-RAYS; INTERPLANETARY SPACE; ENERGETIC PARTICLES; FLARE;
   ACCELERATION; PROPAGATION; SPECTRUM; PROTONS; EVENTS
AB The Aragats Space Environment Center in Armenia provides real-time monitoring of cosmic particle fluxes. Neutron monitors operating at altitudes of 2000 m and 3200 m on Mt Aragats continuously gather data to detect possible abrupt enhancement of the count rates.. Additional high precision detectors, measuring muon and electron fluxes, along with directional information have been put in operation on Mt Aragats in the summer of 2002. We plan to use this information to establish an early warning system against extreme solar energetic particle (SEP) events which pose danger to the satellite electronics and the space station crew. Solar ion and proton fluxes as measured by space-borne sensors on ACE and GOES satellites are used to derive expected arrival times of highest energy ions at 1 AU. The peaks in the time series detected by Aragats neutron monitors, coincided with these times, demonstrate the possibility of early detection of SEP events using the ground-based detectors.
C1 Yerevan Phys Inst, Cosm Ray Div, Yerevan 36, Armenia.
   Stanford Linear Accelerator Ctr, Stanford, CA 94309 USA.
RP Chilingarian, A (reprint author), Yerevan Phys Inst, Cosm Ray Div, Alikhanyan Brothers 2, Yerevan 36, Armenia.
RI chilingarian, ashot/E-1606-2014; chilingarian, ashot/B-1901-2014
OI chilingarian, ashot/0000-0002-2018-9715; chilingarian,
   ashot/0000-0002-2018-9715
NR 49
TC 32
Z9 33
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0954-3899
J9 J PHYS G NUCL PARTIC
JI J. Phys. G-Nucl. Part. Phys.
PD MAY
PY 2003
VL 29
IS 5
BP 939
EP 951
AR PII S0954-3899(03)54475-9
DI 10.1088/0954-3899/29/5/314
PG 13
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 684AQ
UT WOS:000183183600015
ER

PT J
AU Lam, PS
   Chao, YJ
   Zhu, XK
   Kim, Y
   Sindelar, RL
AF Lam, PS
   Chao, YJ
   Zhu, XK
   Kim, Y
   Sindelar, RL
TI Determination of constraint-modified J-R curves for carbon steel storage
   tanks
SO JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME
LA English
DT Article; Proceedings Paper
CT Pressure Vessels and Piping Conference of the
   American-Society-of-Mechanical-Engineers
CY AUG 04-08, 2002
CL VANCOUVER, CANADA
SP Amer Soc Mech Engineers
ID CRACK-TIP FIELDS; PLASTIC FRACTURE-MECHANICS; TRIAXIALITY PARAMETER;
   HARDENING MATERIAL; GROWTH; SPECIMENS; FAMILY; SIZE
AB Mechanical testing of A285 carbon steel, a storage tank material, was performed to develop fracture properties based on the constraint theory of fracture mechanics. A series of single edge-notched bend (SENB) specimen designs with various levels of crack tip constraint were used. The variation of crack tip constraint was achieved by changing the ratio of the initial crack length to the specimen depth. The test data show that the J-R curves are specimen-design-dependent, which is known as the constraint effect. A two-parameter fracture methodology is adopted to construct a constraint-modified J-R curve, which is a function of the constraint parameter, A(2), while J remains the loading parameter. This additional fracture parameter is derived from a closed,form solution and can be extracted from the finite element analysis for a specific crack configuration. Using this set of SENB test data, a mathematical expression representing a family of the J-R curves,for A285 carbon steel can be developed. It is shown that the predicted J-R curves match well with the SENB data over an extensive amount of crack growth. In addition, this expression is used to predict the J-R curve of a compact tension specimen (CT), and reasonable agreement to the actual test data is achieved. To demonstrate its application in a flaw stability evaluation, the configuration of a generic A285 storage tank with a postulated axial flaw is used. For a flaw length of 10% of the tank height, the predicted J-R curve is found to be similar to that for a SENB specimen with a short notch, which is in a state of low constraint. This implies that the use of a J-R curve from the ASTM (American Society for Testing and Materials) standard designs, which typically are high-constraint specimens, may be overly conservative for analysis of fracture resistance of large structures.
C1 Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA.
   Univ S Carolina, Dept Mech Engn, Columbia, SC 29208 USA.
RP Lam, PS (reprint author), Westinghouse Savannah River Co, Savannah River Technol Ctr, Aiken, SC 29808 USA.
NR 32
TC 21
Z9 21
U1 1
U2 5
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0094-9930
EI 1528-8978
J9 J PRESS VESS-T ASME
JI J. Press. Vessel Technol.-Trans. ASME
PD MAY
PY 2003
VL 125
IS 2
BP 136
EP 143
DI 10.1115/1.1564069
PG 8
WC Engineering, Mechanical
SC Engineering
GA 681WK
UT WOS:000183058400003
ER

PT J
AU Bao, LL
   Mahurin, SM
   Liang, CD
   Dai, S
AF Bao, LL
   Mahurin, SM
   Liang, CD
   Dai, S
TI Study of silver films over silica beads as a surface-enhanced Raman
   scattering (SERS) substrate for detection of benzoic acid
SO JOURNAL OF RAMAN SPECTROSCOPY
LA English
DT Article
DE silver films; silica beads; surface-enhanced Raman scattering; benzoic
   acid
ID NANOSPHERE SURFACES; OPTICAL-PROPERTIES; ISLAND FILMS; AG FILM;
   NANOPARTICLES; SPECTROSCOPY; DEPOSITION; NANOSTRUCTURE; PARAMETERS;
   STABILITY
AB Surfaces prepared by vacuum depositing silver on silica nanospheres were investigated as surface-enhanced Raman scattering (SERS) substrates using benzoic acid as an analyte. The SERS sensitivity of the substrates was probed as a function of substrate parameters, such as silver-film thickness and silica-bead dimensions. The SERS signals were found to increase with an increase in silver-film thickness and silica-bead diameter until a maximum signal was reached. Additional increases in the film thickness or the bead diameter resulted in a decrease in the SERS signal. Maximum SERS response was obtained with a substrate made by vapor depositing a 6 nm thick coating of silver on a thin layer of silica beads with a nominal diameter of 565 nm. Scanning electron microscopy (SEM) of the substrates was performed to consider the effect of surface morphology on the SERS responses. Optimal SERS substrates exhibited a detection limit of 5 x 10(-7) m for adsorbed benzoic acid. A linear relationship was demonstrated between the SERS response and the concentration of benzoic acid with two different slopes, one in the 10(-5)-10(-3) M range and the other in the 10(-3)-10(-1) m range. Published in 2003 by John Wiley Sons, Ltd.
C1 Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RP Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Sci, Oak Ridge, TN 37831 USA.
RI Liang, Chengdu/G-5685-2013; Dai, Sheng/K-8411-2015
OI Dai, Sheng/0000-0002-8046-3931
NR 19
TC 31
Z9 32
U1 3
U2 25
PU JOHN WILEY & SONS LTD
PI W SUSSEX
PA BAFFINS LANE CHICHESTER, W SUSSEX PO19 1UD, ENGLAND
SN 0377-0486
J9 J RAMAN SPECTROSC
JI J. Raman Spectrosc.
PD MAY
PY 2003
VL 34
IS 5
BP 394
EP 398
DI 10.1002/jrs.993
PG 5
WC Spectroscopy
SC Spectroscopy
GA 683VU
UT WOS:000183172100010
ER

PT J
AU Irani, S
   Leung, V
AF Irani, S
   Leung, V
TI Scheduling with conflicts on bipartite and interval graphs
SO JOURNAL OF SCHEDULING
LA English
DT Article
DE competitive analysis; online algorithms; scheduling; conflict graph;
   session scheduling; traffic intersection control
ID RESOURCE-ALLOCATION; DIVERSION
AB In this paper, we consider the on-line scheduling of jobs that may be competing for mutually exclusive resources. We model the conflicts between jobs with a conflict graph, so that the set of all concurrently running jobs must form an independent set in the graph. This model is natural and general enough to have applications in a variety of settings; however, we are motivated by the following two specific applications: traffic intersection control and session scheduling in high speed local area networks with spatial reuse. Our results focus on two special classes of graphs motivated by our applications: bipartite graphs and interval graphs. The cost function we use is maximum response time. In all of the upper bounds, we devise algorithms which maintain a set of invariants which bound the accumulation of jobs on cliques (in the case of bipartite graphs, edges) in the graph. The lower bounds show that the invariants maintained by the algorithms are tight to within a constant factor. For a specific graph which arises in the traffic intersection control problem, we show a simple algorithm which achieves the optimal competitive ratio.
C1 Univ Calif Irvine, Irvine, CA 92697 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Irani, S (reprint author), Univ Calif Irvine, 444 Comp Sci Bldg, Irvine, CA 92697 USA.
NR 28
TC 10
Z9 11
U1 0
U2 1
PU KLUWER ACADEMIC PUBL
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1094-6136
J9 J SCHED
JI J. Sched.
PD MAY-JUN
PY 2003
VL 6
IS 3
BP 287
EP 307
DI 10.1023/A:1022908509269
PG 21
WC Engineering, Manufacturing; Operations Research & Management Science
SC Engineering; Operations Research & Management Science
GA 820TP
UT WOS:000221412600006
ER

PT J
AU Mancini, T
   Heller, P
   Butler, B
   Osborn, B
   Schiel, W
   Goldberg, V
   Buck, R
   Diver, R
   Andraka, C
   Moreno, J
AF Mancini, T
   Heller, P
   Butler, B
   Osborn, B
   Schiel, W
   Goldberg, V
   Buck, R
   Diver, R
   Andraka, C
   Moreno, J
TI Dish-Stirling systems: An overview of development and status
SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
AB Dish-Stirling systems have demonstrated the highest efficiency of any solar power generation system by converting nearly 30% of direct-normal incident solar radiation into electricity after accounting for parasitic power losses[1]. These high-performance, solar power systems have been in development for two decades with the primary focus in recent years on reducing the capital and operating costs of systems. Even though the systems currently cost about $10,000 US/kW installed, major cost reduction will occur with mass production and further development of the systems. Substantial progress has been made to improve reliability thereby reducing the operating and maintenance costs of the systems. As capital costs drop to about $3000 US/kW promising market opportunities appear to be developing in green power and distributed generation markets in the southwestern United States and in Europe. In this paper we review the current status of four Dish-Stirling systems that are being developed for commercial markets and present system specifications and review system performance and cost data. We also review the economics, capital cost, operating and maintenance costs, and the emerging. markets for Dish-Stirling systems.
C1 Sandia Natl Labs, Solar Thermal Technol Dept, Albuquerque, NM 87185 USA.
   Deutsch Zentrum Luft & Raumfahrt, E-04200 Tabernas, Spain.
   Sci Applicat Int Corp, San Diego, CA 92121 USA.
   Stirling Energy Syst, Phoenix, AZ USA.
   Schlaich Bergermann & Partner, Stuttgart, Germany.
   WGAssociates, Dallas, TX USA.
   Deutsch Zentrum Luft & Raumfahrt, Stuttgart, Germany.
RP Mancini, T (reprint author), Sandia Natl Labs, Solar Thermal Technol Dept, POB 5800, Albuquerque, NM 87185 USA.
NR 37
TC 105
Z9 110
U1 2
U2 29
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0199-6231
J9 J SOL ENERG-T ASME
JI J. Sol. Energy Eng. Trans.-ASME
PD MAY
PY 2003
VL 125
IS 2
BP 135
EP 151
DI 10.1115/1.1562634
PG 17
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA 680UQ
UT WOS:000182997300001
ER

PT J
AU Spath, PL
   Amos, WA
AF Spath, PL
   Amos, WA
TI Using a concentrating solar reactor to produce hydrogen and carbon black
   via thermal decomposition of natural gas: Feasibility and economics
SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
AB Producing hydrogen in a cost-effective manner while minimizing environmental impacts is a big challenge. Hydrogen can be generated with carbon as a by-product from thermal decomposition of natural gas. A system using a solar reactor to produce hydrogen on-site for fueling stations was examined for its technical and economic feasibility. Integrated energy and material balance calculations were made to determine the amount of hydrogen that could be produced from a given reactor size and heliostat field area. Hourly solar data were applied to the model to properly estimate real storage requirements. This paper gives the results of the study including the greenhouse gas emissions and energy balance.
C1 Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Spath, PL (reprint author), Natl Renewable Energy Lab, 1617 Cole Blvd, Golden, CO 80401 USA.
NR 18
TC 13
Z9 13
U1 0
U2 3
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0199-6231
J9 J SOL ENERG-T ASME
JI J. Sol. Energy Eng. Trans.-ASME
PD MAY
PY 2003
VL 125
IS 2
BP 159
EP 164
DI 10.1115/1.1565083
PG 6
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA 680UQ
UT WOS:000182997300003
ER

PT J
AU Kearney, D
   Herrmann, U
   Nava, P
   Kelly, P
   Mahoney, R
   Pacheco, J
   Cable, R
   Potrovitza, N
   Blake, D
   Price, H
AF Kearney, D
   Herrmann, U
   Nava, P
   Kelly, P
   Mahoney, R
   Pacheco, J
   Cable, R
   Potrovitza, N
   Blake, D
   Price, H
TI Assessment of a molten salt heat transfer fluid in a parabolic trough
   solar field
SO JOURNAL OF SOLAR ENERGY ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
AB An evaluation was carried out to investigate the feasibility of utilizing a molten salt as the heat transfer fluid (HTF) and for thermal storage in a parabolic trough solar field to improve system performance and to reduce the levelized electricity cost. The operating SEGS (Solar Electric Generating Systems located in Mojave Desert, California) plants currently use a high temperature synthetic oil consisting of a eutectic mixture of biphenyl/ diphenyl oxide. The scope of this investigation included examination of known critical issues, postulating solutions or possible approaches where potential problems exist, and the quantification of performance and electricity cost using preliminary cost inputs. The two leading candidates were the so-called solar salt (a binary salt consisting of 60% NaNO3 and 40% KNO3) and a salt sold commercially as HitecXL (a ternary salt consisting of 48% Ca(NO3)(2), 7% NaNO3, and 45% KNO3). Assuming a two-tank storage system and a maximum operation temperature of 450degreesC, the evaluation showed that the levelized electricity cost can be reduced by 14.2% compared to a state-of-the-art parabolic trough plant such as the SEGS plants. If higher temperatures are possible, the improvement may be as high as 17.6%. Thermocline salt storage systems offer even greater benefits.
C1 Kearney & Associates, Vashon, WA 98070 USA.
   Flabeg Solar Int, D-58070 Cologne, Germany.
   Nexant Inc, San Francisco, CA 94105 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
   KJC Operating Co, Boron, CA 95316 USA.
   Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Kearney, D (reprint author), Kearney & Associates, POB 2568, Vashon, WA 98070 USA.
NR 8
TC 162
Z9 180
U1 8
U2 57
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0199-6231
J9 J SOL ENERG-T ASME
JI J. Sol. Energy Eng. Trans.-ASME
PD MAY
PY 2003
VL 125
IS 2
BP 170
EP 176
DI 10.1115/1.1565087
PG 7
WC Energy & Fuels; Engineering, Mechanical
SC Energy & Fuels; Engineering
GA 680UQ
UT WOS:000182997300005
ER

PT J
AU Roy, CJ
   Blottner, FG
AF Roy, CJ
   Blottner, FG
TI Methodology for turbulence model validation: Application to hypersonic
   flows
SO JOURNAL OF SPACECRAFT AND ROCKETS
LA English
DT Article; Proceedings Paper
CT AIAA 39th Aerospace Sciences Meeting and Exhibits
CY JAN 08-11, 2001
CL RENO, NEVADA
SP Amer Inst Aeronaut & Astronaut
ID DIFFERENCE-SCHEMES; BOUNDARY-LAYERS; FLAT-PLATE; PERSPECTIVE;
   TRANSITION; ACCURACY; EQUATION
AB Hypersonic transitional flows over a flat plate and a sharp cone are studied using four turbulence models: the one-equation eddy viscosity transport model of Spalart-Allmaras, a low-Reynolds-number k-epsilon model, the Menter k-w model, and the Wilcox k-w model. A framework is presented for the assessment of turbulence models that includes documentation procedures, numerical accuracy, model sensitivity, and model validation. The accuracy of the simulations is addressed, and the sensitivities of the models to grid refinement, freestream turbulence levels, and wall y(+) spacing are presented. The flat-plate skin-friction results are compared to the well-established laminar and turbulent correlations of Van Driest. Correlations for the sharp cone are discussed in detail. These correlations, along with recent experimental data, are used to judge the validity of the simulation results for skin friction. and surface heating on the sharp cone. The Spalart-Allmaras model performs the best with regards to model sensitivity and model accuracy, whereas the Menter k-w model also performs well for these zero pressure gradient boundary-layer flows.
C1 Sandia Natl Labs, Tech Staff, Albuquerque, NM 87185 USA.
RP Roy, CJ (reprint author), Sandia Natl Labs, Tech Staff, POB 5800,Mail Stop 0825, Albuquerque, NM 87185 USA.
RI Roy, Christopher/C-5427-2013
NR 54
TC 9
Z9 9
U1 2
U2 5
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0022-4650
J9 J SPACECRAFT ROCKETS
JI J. Spacecr. Rockets
PD MAY-JUN
PY 2003
VL 40
IS 3
BP 313
EP 325
DI 10.2514/2.3966
PG 13
WC Engineering, Aerospace
SC Engineering
GA 687FN
UT WOS:000183365800002
ER

PT J
AU Shenoy, GK
   Lewellen, JW
   Shu, DM
   Vinokurov, NA
AF Shenoy, GK
   Lewellen, JW
   Shu, DM
   Vinokurov, NA
TI Variable-period undulators as synchrotron radiation sources
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE variable-period undulators; synchrotron radiation sources; radiation
   damage
ID INSERTION DEVICES; WIGGLER; ARRAY; SPRING-8; MAGNETS; DESIGN
AB A concept for variable-period undulators for the production of synchrotron radiation from both medium- and high-energy storage rings is described. This concept is based on a staggered array of permeable poles placed in a magnetic solenoid that produces a longitudinal field. The concept permits variations in the short magnetic period of the undulator of as much as 100%. The unique capabilities of such undulators will allow them to be tuned by the variation of the period length and of the solenoid field. The device can be operated at either constant flux or constant power, independent of X-ray energy. It is expected that the new concept will have a major impact on the production and applications of X-rays because of the inherent simplicity and flexibility of the design and the absence of radiation damage. Analyses of the magnetic and mechanical design concepts are presented.
C1 Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
   Budker Inst Nucl Phys, Novosibirsk 630090, Russia.
RP Shenoy, GK (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
NR 30
TC 13
Z9 13
U1 0
U2 1
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 MAY
PY 2003
VL 10
BP 205
EP 213
DI 10.1107/S0909049502023257
PN 3
PG 9
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 672XB
UT WOS:000182547400001
PM 12714749
ER

PT J
AU Carr, R
AF Carr, R
TI Magnetic counterforce for insertion devices
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE wigglers; undulators; insertion devices; magnets
AB In a standard insertion device, such as a wiggler or undulator, the force between two rows of magnets increases exponentially as the gap between the rows decreases. This force is usually managed by a powerful mechanical gap adjustor, sometimes with the aid of springs at small values of gap. This paper is a description of how the magnetic forces can be nulled using auxiliary counterforce magnets.
C1 Stanford Univ, Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA.
RP Carr, R (reprint author), Stanford Univ, Stanford Linear Accelerator Ctr, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA.
NR 2
TC 2
Z9 2
U1 0
U2 0
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 MAY
PY 2003
VL 10
BP 269
EP 271
DI 10.1107/S0909049503002930
PN 3
PG 3
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 672XB
UT WOS:000182547400012
PM 12714760
ER

PT J
AU Welberry, TR
   Goossens, DJ
   Haeffner, DR
   Lee, PL
   Almer, J
AF Welberry, TR
   Goossens, DJ
   Haeffner, DR
   Lee, PL
   Almer, J
TI High-energy diffuse scattering on the 1-ID beamline at the Advanced
   Photon Source
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE diffuse scattering; cubic zirconia; wustite; high-energy synchrotron
   radiation
AB This paper reports on experiments in which high-energy (65.35 keV) X-rays were used to record the detailed diffuse diffraction patterns of a number of ceramic materials. The methodology has enabled a greater q-range to be explored (up to sin theta/lambda similar or equal to 0.97) than is possible with laboratory-based experiments, with better q-space resolution and increased sensitivity, thus allowing previously unseen detail in diffraction patterns to be recorded. In all, 11 sections of data have been collected for Ca-CSZ, eight for Y-CSZ and six for wustite.
C1 Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia.
   Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Welberry, TR (reprint author), Australian Natl Univ, Res Sch Chem, Canberra, ACT 0200, Australia.
RI Welberry, Thomas/H-7847-2014; 
OI Welberry, Thomas/0000-0002-6906-9191; Goossens,
   Darren/0000-0003-0776-2692
NR 6
TC 13
Z9 13
U1 0
U2 6
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 MAY
PY 2003
VL 10
BP 284
EP 286
DI 10.1107/S0909049503004643
PN 3
PG 3
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 672XB
UT WOS:000182547400015
PM 12714763
ER

PT J
AU Pickering, IJ
   Hirsch, G
   Prince, RC
   Sneeden, EY
   Salt, DE
   George, GN
AF Pickering, IJ
   Hirsch, G
   Prince, RC
   Sneeden, EY
   Salt, DE
   George, GN
TI Imaging of selenium in plants using tapered metal monocapillary optics
SO JOURNAL OF SYNCHROTRON RADIATION
LA English
DT Article
DE monocapillary optics; chemically specific imaging; selenium;
   hyperaccumulators; Astragalus bisulcatus
AB Tapered metal monocapillary optics provide a potential alternative to conventional methods of producing small X-ray beams. This paper presents the initial results of chemically specific imaging using such devices. Cellular resolution of organic selenium is obtained in a longitudinal section of mature Astragalus bisulcatus, a selenium hyperaccumulating plant. This work demonstrates the utility of metal monocapillary optics for imaging dilute levels of target elements in biological tissues.
C1 Stanford Synchrotron Radiat Lab, SLAC, Menlo Pk, CA 94025 USA.
   Hirsch Sci, Pacifica, CA 94044 USA.
   ExxonMobil Res & Engn Co, Annandale, NJ 08801 USA.
   Purdue Univ, Dept Hort & Landscape Architecture, W Lafayette, IN 47907 USA.
RP Pickering, IJ (reprint author), Stanford Synchrotron Radiat Lab, SLAC, 2575 Sand Hill Rd,MS 69, Menlo Pk, CA 94025 USA.
RI Salt, David/B-3864-2009; George, Graham/E-3290-2013; Pickering,
   Ingrid/A-4547-2013; 
OI Prince, Roger/0000-0002-5174-4216; Pickering, Ingrid/0000-0002-0936-2994
FU NCI NIH HHS [1R41CA80444-01]
NR 11
TC 17
Z9 17
U1 0
U2 4
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 MAY
PY 2003
VL 10
BP 289
EP 290
DI 10.1107/S0909049503003273
PN 3
PG 2
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA 672XB
UT WOS:000182547400017
PM 12714765
ER

PT J
AU Smith, BL
   Swift, GW
AF Smith, BL
   Swift, GW
TI Power dissipation and time-averaged pressure in oscillating flow through
   a sudden area change
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
AB Experiments on oscillating flow at the abrupt transition between a two-dimensional channel and essentially infinite space are presented. It is shown that phenomena associated with the transition are functions of three independent dimensionless parameters including the dimensionless radius rounding, the edge of the end of the channel. The effect of each of these three parameters on the time-averaged pressure difference across the transition and the acoustic power dissipation is explored by holding two parameters fixed while varying the third. Evidence is presented that the losses due to oscillatory flow in this geometry are smaller than would be expected from commonly accepted values for steady flow in similar geometry. (C) 2003 Acoustical Society of America.
C1 Utah State Univ, Dept Mech & Aerosp Engn, Logan, UT 84322 USA.
   Los Alamos Natl Lab, Condensed Matter & Thermal Phys Grp, Los Alamos, NM 87545 USA.
RP Utah State Univ, Dept Mech & Aerosp Engn, Logan, UT 84322 USA.
RI Smith, Barton/H-3585-2011
NR 18
TC 26
Z9 28
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
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD MAY
PY 2003
VL 113
IS 5
BP 2455
EP 2463
DI 10.1121/1.1564022
PG 9
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 676LA
UT WOS:000182752500010
PM 12765365
ER

PT J
AU Lehman, SK
   Devaney, AJ
AF Lehman, SK
   Devaney, AJ
TI Transmission mode time-reversal super-resolution imaging
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID GEOPHYSICAL DIFFRACTION TOMOGRAPHY; PROPAGATION; WAVE
AB The theory of time-reversal super-re solution imaging of point targets embedded in a reciprocal background medium [A. J. Devaney, "Super-resolution imaging using time-reversal and MUSIC," J. Acoust. Soc. Am. (to be published)] is generalized to the case where the transmitter and receiver sensor arrays need not be coincident and for cases where the background medium can be nonreciprocal. The new theory developed herein is based on the singular value decomposition of the generalized multistatic data matrix of the sensor system rather than the standard eigenvector/eigenvalue decomposition of the time-reversal matrix as was employed in the above-mentioned work and other treatments of time-reversal imaging [Prada, Thomas, and Fink, "The iterative time reversal process: Analysis of the convergence," J. Acoust. Soc. Am. 97, 62 (1995); Prada et al., "Decomposition of the time reversal operator: Detection and selective focusing on two scatterers," J. Acoust. Soc. Am. 99, 2067 (1996)]. A generalized multiple signal classification (MUSIC) algorithm is derived that allows super-resolution imaging of both well-resolved and non-well-resolved point targets from arbitrary sensor array geometries. MUSIC exploits the orthogonal nature of the scatterer and noise subspaces defined by the singular vectors of the multistatic data matrix to form scatterer images. The time-reversal/MUSIC algorithm is tested and validated in two computer simulations of offset vertical seismic profiling where the sensor sources are aligned along the earth's surface and the receiver array is aligned along a subsurface borehole. All results demonstrate the high contrast, high resolution imaging capabilities of this new algorithm combination when compared with "classical" backpropagation or field focusing. Above and beyond the application of seismo-acoustic imaging, the time-reversal super-resolution theory has applications in ocean acoustics for target location, and ultrasonic nondestructive evaluation of parts. (C) 2003 Acoustical Society of America.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Northeastern Univ, Boston, MA 02115 USA.
RP Lehman, SK (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
NR 21
TC 88
Z9 89
U1 2
U2 28
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 MAY
PY 2003
VL 113
IS 5
BP 2742
EP 2753
DI 10.1121/1.1566975
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 676LA
UT WOS:000182752500037
PM 12765392
ER

PT J
AU Green, M
   Kuhns, H
   Pitchford, M
   Dietz, R
   Ashbaugh, L
   Watson, T
AF Green, M
   Kuhns, H
   Pitchford, M
   Dietz, R
   Ashbaugh, L
   Watson, T
TI Application of the tracer-aerosol gradient interpretive technique to
   sulfur attribution for the big bend regional aerosol and visibility
   observational study
SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
LA English
DT Article
AB A simple data analysis method called the Tracer-Aerosol Gradient Interpretive Technique (TAGIT) is used to attribute particulate S and SO, at Big Bend National Park in Texas and nearby areas to local and regional sources. Particulate S at Big Bend is of concern because of its effects on atmospheric visibility. The analysis used particulate S, SO2, and perfluorocarbon tracer data from six 6-hr sampling sites in and near Big Bend National Park. The data were collected in support of the Big Bend Regional Aerosol and Visibility Observational (BRAVO) Study; the field portion was conducted from July through October 1999. Perfluorocarbon tracer was released continuously from a tower at Eagle Pass, TX, approximately 25 km-northeast of two large coal-fired power plants (Carbon I and 11) in Coahuila, Mexico, and approximately 270 km east-south-east of Big Bend National Park.
   The perfluorocarbon tracer did not properly represent the location of the emissions from the Carbon power plants for individual, 6-hr sampling periods and attributed only 3% of the particulate S and 27% of the SO2 at the 6-hr sites in and near Big Bend to sources represented by the tracer. An alternative approach using SO2 to tag "local" sources such as the Carbon plants attributed 10% of the particulate S and 75% of the SO2 at the 6-hr sites to local sources. Based on these two approaches, most of the regional (65-86%) and a small fraction (19-31%) of the local. SO2 was converted to particulate S. The analysis implies that substantial reductions in particulate S at Big Bend National Park cannot be achieved by only reducing emissions from the Carbon power plants; reduction of emissions from many sources over a regional area would be necessary.
C1 Desert Res Inst, Div Atmospher Sci, Las Vegas, NV 89119 USA.
   NOAA, Air Resources Lab, Special Operat & Res Div, Las Vegas, NV USA.
   Brookhaven Natl Lab, Dept Environm Sci, Div Atmospher Sci, Upton, NY 11973 USA.
   Univ Calif Davis, Crocker Nucl Lab, Davis, CA 95616 USA.
   NOAA, Field Res Div, Air Resources Lab, Idaho Falls, ID USA.
RP Green, M (reprint author), Desert Res Inst, Div Atmospher Sci, Las Vegas, NV 89119 USA.
RI Kuhns, Hampden/C-3563-2008; Ashbaugh, Lowell/G-3661-2011
NR 9
TC 15
Z9 15
U1 0
U2 0
PU AIR & WASTE MANAGEMENT ASSOC
PI PITTSBURGH
PA ONE GATEWAY CENTER, THIRD FL, PITTSBURGH, PA 15222 USA
SN 1047-3289
J9 J AIR WASTE MANAGE
JI J. Air Waste Manage. Assoc.
PD MAY
PY 2003
VL 53
IS 5
BP 586
EP 595
PG 10
WC Engineering, Environmental; Environmental Sciences; Meteorology &
   Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
   Sciences
GA 674CE
UT WOS:000182618500010
PM 12774992
ER

PT J
AU Shields, SJ
   Oyeyemi, O
AF Shields, SJ
   Oyeyemi, O
TI Mass spectrometry and non-covalent protein-ligand complexes:
   Confirmation of binding sites and changes in tertiary structure
SO JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY
LA English
DT Article
ID ONLINE IMMUNOAFFINITY EXTRACTION; INDUCED CONFORMATIONAL-CHANGES;
   TETANUS TOXIN; CROSS-LINKING; NONCOVALENT COMPLEXES; LIMITED
   PROTEOLYSIS; SAMPLE PREPARATION; SIZE-EXCLUSION; IDENTIFICATION;
   RECEPTOR
AB An experimental approach is described for determining protein-small molecule non-covalent ligand binding sites and protein conformational changes induced by ligand binding. The methodology utilizes time resolved limited proteolysis and the high throughput analysis capability of MALDI TOF MS to determine the binding site in a tetanus toxin C-fragment (51 kDa)-doxorubicin (543 Da) non-covalent complex. Comparing relative ion abundances of peptides released from the time resolved limited proteolysis of tetanus toxin C-fragment (TetC) and the TetC-doxorubicin complex every 10 min from 10 to 120 min of digestion revealed that the binding of doxorubicin induced a significant change in surface topology of TetC. Four of the twenty-nine peptides observed by MALDI MS, including amino acids 351-360, 299-304, 305-311 and 312-316, had a lower abundance in the TetC-doxorubicin complex relative to TetC from 10 to 100 min of digestion. A decrease in ion abundance suggests doxorubicin obstructs the access of the protease to one or both termini of these peptides, identifying doxorubicin binding site(s). Conversely, five peptide ions, including amino acids 335-350, 364-375, 364-376, 281-298, and 316-328, all had a greater abundance in the digest of the complex, indicating an increase in accessibility to these sites. These five peptides flank regions of decreased ion abundance, suggesting that doxorubicin not only binds to the surface, but also induces a conformational change in TetC. (C) 2003 American Society for Mass Spectrometry.
C1 Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, Livermore, CA 94551 USA.
RP Shields, SJ (reprint author), Lawrence Livermore Natl Lab, Biol & Biotechnol Res Program, POB 808,L-231, Livermore, CA 94551 USA.
NR 43
TC 24
Z9 26
U1 1
U2 7
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1044-0305
J9 J AM SOC MASS SPECTR
JI J. Am. Soc. Mass Spectrom.
PD MAY
PY 2003
VL 14
IS 5
BP 460
EP 470
DI 10.1016/S1044-0305(03)00129-6
PG 11
WC Chemistry, Analytical; Chemistry, Physical; Spectroscopy
SC Chemistry; Spectroscopy
GA 683UV
UT WOS:000183169400006
PM 12745215
ER

PT J
AU Siebesma, AP
   Bretherton, CS
   Brown, A
   Chlond, A
   Cuxart, J
   Duynkerke, PG
   Jiang, HL
   Khairoutdinov, M
   Lewellen, D
   Moeng, CH
   Sanchez, E
   Stevens, B
   Stevens, DE
AF Siebesma, AP
   Bretherton, CS
   Brown, A
   Chlond, A
   Cuxart, J
   Duynkerke, PG
   Jiang, HL
   Khairoutdinov, M
   Lewellen, D
   Moeng, CH
   Sanchez, E
   Stevens, B
   Stevens, DE
TI A large eddy simulation intercomparison study of shallow cumulus
   convection
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID PLANETARY BOUNDARY-LAYER; LARGE-SCALE MODELS; TRADE-WIND CUMULI;
   3-DIMENSIONAL SIMULATION; CLOUD; SCHEME; PARAMETERIZATION;
   STRATOCUMULUS; TURBULENCE; PARAMETRIZATION
AB This paper reports an intercomparison study on undisturbed trade wind cumulus convection under steady-state conditions as observed during the Barbados Oceanographic and Meteorological Experiment (BOMEX) with 10 large eddy simulation (LES) models. A main objective of this study is to obtain a quantitative assessment of the quality of the turbulent dynamics for this type of boundary layer clouds as produced by the different LES codes. A 6-h simulation shows excellent model-to-model agreement of the observed vertical thermodynamical structure, reasonable agreement of variances and turbulent fluxes, and good agreement of quantities conditionally sampled within the model clouds, such as cloud cover, liquid water, and cloud updraft strength. In the second part of this paper the LES dataset is used to evaluate simple models that are used in parameterizations of current general circulation models (GCMs). Finally, the relation of this work to subsequent LES studies of more complicated regimes is discussed, and guidance is given for the design of future observational studies of shallow cumulus boundary layers.
C1 Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands.
   Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
   Meteorol Off, Bracknell RB12 2SZ, Berks, England.
   Max Planck Inst Meteorol, Hamburg, Germany.
   Univ Illes Balears, Dept Fis, E-07071 Palma de Mallorca, Spain.
   Inst Marine & Atmospher Res, Utrecht, Netherlands.
   Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
   W Virginia Univ, Morgantown, WV 26506 USA.
   Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
   Univ Complutense Madrid, Dept Geofis & Meteorol, Madrid, Spain.
   Univ Calif Los Angeles, Dept Atmospher Sci, Los Angeles, CA 90024 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Siebesma, AP (reprint author), Royal Netherlands Meteorol Inst, POB 201, NL-3730 AE De Bilt, Netherlands.
RI Lewellen, David/B-1453-2008; Stevens, Bjorn/A-1757-2013; Jiang,
   Hongli/N-3281-2014; Sanchez, Enrique/L-5086-2014
OI Stevens, Bjorn/0000-0003-3795-0475; Sanchez, Enrique/0000-0002-7720-4437
NR 58
TC 302
Z9 306
U1 3
U2 36
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD MAY
PY 2003
VL 60
IS 10
BP 1201
EP 1219
DI 10.1175/1520-0469(2003)60<1201:ALESIS>2.0.CO;2
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 673FH
UT WOS:000182569200001
ER

PT J
AU Giacomini, MT
   Balasubramanian, M
   Khalid, S
   McBreen, J
   Ticianelli, EA
AF Giacomini, MT
   Balasubramanian, M
   Khalid, S
   McBreen, J
   Ticianelli, EA
TI Characterization of the activity of palladium-modified polythiophene
   electrodes for the hydrogen oxidation and oxygen reduction reactions
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID X-RAY-ABSORPTION; ROTATING PLATINUM-ELECTRODES; DISK ELECTRODE; ACID
AB Pd particles were inserted into polythiophene (PT) films and studied for the activity for the hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) in acid media. In situ X-ray absorption spectroscopy (XAS) was employed for the characterization of the Pd particles and the results confirmed that they possess metallic character. At low potentials, hydrogen is incorporated into the Pd lattice resulting in an increase in both the average Pd-Pd bond distance as well as the structural disorder. XAS results also indicated that a considerable fraction of the total Pd atoms is located in the surface of the electrodeposit, as expected for such a high surface area material. No activity for the HOR is seen for the PT films in the absence of catalysts. For the catalyzed PT films, a chemical reaction involving atomic adsorbed hydrogen atoms on Pt or Pd and the carbon radical in the polaronic PT species may occur causing a progressive degradation of the film properties during HOR. The Pd-modified electrode exhibits a considerable catalytic activity for ORR. Above 0.3 V, only formation of hydrogen peroxide occurs, leading to a two electron ORR mechanism. For smaller potentials, further reduction of H2O2 to water occurs, resulting in a four electron global process. (C) 2003 The Electrochemical Society.
C1 USP, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil.
   Brookhaven Natl Lab, Dept Mat Sci, Upton, NY 11973 USA.
   Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
RP Giacomini, MT (reprint author), USP, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil.
RI Ticianelli, Edson/D-1560-2012
OI Ticianelli, Edson/0000-0003-3432-2799
NR 28
TC 26
Z9 27
U1 1
U2 9
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PD MAY
PY 2003
VL 150
IS 5
BP A588
EP A593
DI 10.1149/1.1562932
PG 6
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 666NW
UT WOS:000182184200007
ER

PT J
AU Scovazzo, P
   Poshusta, J
   DuBois, D
   Koval, C
   Noble, R
AF Scovazzo, P
   Poshusta, J
   DuBois, D
   Koval, C
   Noble, R
TI Electrochemical separation and concentration of < 1% carbon dioxide from
   nitrogen
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID IONIC LIQUIDS; COBALT(I); METHANOL; REMOVAL; BINDING; CO2
AB Low energy separations for <1% CO2 gases would benefit gas treatment and CO2 sequestration. Theoretically, electrochemical pumping can separate and concentrate CO2 from the atmosphere or other gases with <1% CO2 at significantly lower energy cost than current systems. Principles of electrochemical pumping for CO2 separations are discussed and results for both organic solvent and ionic liquid working fluid systems are presented. Due to the large quantities of gases requiring processing during the separation/concentration of <1% CO2 gases, this work looked at solvents with negligible vapor pressures, specifically propylene carbonate and the room-temperature ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate. Other important parameters, as illustrated by the data and models presented, are low CO2 solubility in the solvent, high CO2 carrier solubility, CO2 binding constants, and the CO2 carrier's electrochemistry. Reported is the electrochemical pumping of CO2 from 0.5% (in nitrogen) to 100%, a 200-fold increase in partial pressure, using the CO2 carrier 2,6-di-tert-butyl-1,4-benzoquinone in a propylene carbonate solution. The ratio of CO2 moles pumped per electron mole was 0.43. The models determined the optimal CO2 solubility in the solvent and the required redox swing in the CO2 binding constants of the carrier. (C) 2003 The Electrochemical Society.
C1 Univ Colorado, Dept Chem Engn, Boulder, CO 80309 USA.
   Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
   Natl Renewable Energy Lab, Golden, CO 80401 USA.
RP Noble, R (reprint author), Univ Colorado, Dept Chem Engn, Boulder, CO 80309 USA.
NR 21
TC 23
Z9 23
U1 3
U2 27
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PD MAY
PY 2003
VL 150
IS 5
BP D91
EP D98
DI 10.1149/1.1566962
PG 8
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 666NW
UT WOS:000182184200041
ER

PT J
AU Ramanathan, S
   Chi, D
   McIntyre, PC
   Wetteland, CJ
   Tesmer, JR
AF Ramanathan, S
   Chi, D
   McIntyre, PC
   Wetteland, CJ
   Tesmer, JR
TI Ultraviolet-ozone oxidation of metal films
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Article
ID ULTRATHIN ZIRCONIA DIELECTRICS; CHEMICAL-VAPOR-DEPOSITION; GATE
   DIELECTRICS; LOW-TEMPERATURE; OXIDE-GROWTH; SILICON; ZRO2; DIFFUSION;
   MECHANISM; ZR(0001)
AB Metal oxides such as zirconia and hafnia are being investigated as new materials for application as gate dielectrics in future complementary metal-oxide-semiconductor devices. In this paper, we present results on oxidation of metal films such as Zr, Hf, and Al by the ultraviolet (UV) ozone oxidation method. A nuclear reaction analysis technique, the O-16(d,alpha)N-14 nuclear reaction, was used to quantify the oxygen concentration in the dielectric stacks. The method was found to be sensitive to monolayer levels of oxygen. It was found that the oxidation kinetics of the metals increased significantly due to the presence of UV light. The oxidation rate was also found to depend on the oxygen partial pressure. The oxidation rate of Zr was greater than that of Hf, while Al oxidized more slowly than Hf for the UV-ozone oxidation conditions investigated. Possible reasons for the observed oxidation behavior are discussed in detail. (C) 2003 The Electrochemical Society.
C1 Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
   Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Ramanathan, S (reprint author), Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
NR 31
TC 25
Z9 25
U1 0
U2 9
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PD MAY
PY 2003
VL 150
IS 5
BP F110
EP F115
DI 10.1149/1.1566416
PG 6
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 666NW
UT WOS:000182184200052
ER

PT J
AU Sun, YK
   Lee, YS
   Yoshio, M
   AMine, K
AF Sun, YK
   Lee, YS
   Yoshio, M
   AMine, K
TI Synthesis and electrochemical properties of ZnO-coated LiNi0.5Mn1.5O4
   spinel as 5 V cathode material for lithium secondary batteries (vol 5,
   pg A99, 2002)
SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY
LA English
DT Correction
C1 Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea.
   Saga Univ, Dept Appl Chem, Saga 840, Japan.
   Argonne Natl Lab, Div Chem Technol, Electrochem Technol Program, Argonne, IL 60439 USA.
RP Sun, YK (reprint author), Hanyang Univ, Dept Chem Engn, Seoul 133791, South Korea.
RI Sun, Yang-Kook/B-9157-2013; Amine, Khalil/K-9344-2013
OI Sun, Yang-Kook/0000-0002-0117-0170; 
NR 1
TC 11
Z9 11
U1 0
U2 17
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 0013-4651
J9 J ELECTROCHEM SOC
JI J. Electrochem. Soc.
PD MAY
PY 2003
VL 150
IS 5
BP L11
EP L11
DI 10.1149/1.1566967
PG 1
WC Electrochemistry; Materials Science, Coatings & Films
SC Electrochemistry; Materials Science
GA 666NW
UT WOS:000182184200073
ER

PT J
AU Tomasik, P
   Schilling, CH
   Jankowiak, R
   Kim, JC
AF Tomasik, P
   Schilling, CH
   Jankowiak, R
   Kim, JC
TI The role of organic dispersants in aqueous alumina suspensions
SO JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
LA English
DT Article
DE Al2O3; suspensions; dispersants; rheology
ID CITRIC-ACID; CERAMICS; FORCES
AB Several groups of organic compounds were investigated as potential dispersants for aqueous suspensions of micrometric aluminum oxide powder. They were compounds dissociating into bulky cations and small anions (tetralkylammonium chlorides and hydroxides, Methylene Blue), into bulky anions and small cations (phenols, mono- and poly-carboxylic acids, and fluorescein sodium salt), organic acids, and bases (tetralkylammonium hydroxides), and bulky, non-dissociating, polar compounds (Malachite Green and maltodextrin). We selected these compounds in order to contribute to the knowledge of how electrostatic interactions, the size and structure of the additive, and surface sorption onto alumina influence the rheological properties of colloidal alumina suspensions. We focused on low molecular weight additives, of different shape to influence interparticle electrostatic interactions as the most essential in reducing the shear stress at a given strain rate. The size and structure effects of these low molecular weight additives may be overshadowed by interparticle electrostatic interactions. In the case of non-dissociating macromolecules (e.g., maltodextrin), electrostatic interparticle interactions are minimal, and sorption is a principal factor influencing rheology. (C) 2002 Elsevier Science Ltd. All rights reserved.
C1 Univ Agr, Dept Chem, PL-31120 Krakow, Poland.
   Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
   Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
RP Tomasik, P (reprint author), Univ Agr, Dept Chem, Mickiewicz Ave 21, PL-31120 Krakow, Poland.
EM rrtomasi@cyf-kr.edu.pl
NR 34
TC 20
Z9 22
U1 3
U2 9
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0955-2219
EI 1873-619X
J9 J EUR CERAM SOC
JI J. Eur. Ceram. Soc.
PD MAY
PY 2003
VL 23
IS 6
BP 913
EP 919
AR PII S0955-2219(02)00204-2
DI 10.1016/S0955-2219(02)00204-2
PG 7
WC Materials Science, Ceramics
SC Materials Science
GA 649UZ
UT WOS:000181227500013
ER

PT J
AU Lilleodden, ET
   Zimmerman, JA
   Foiles, SM
   Nix, WD
AF Lilleodden, ET
   Zimmerman, JA
   Foiles, SM
   Nix, WD
TI Atomistic simulations of elastic deformation and dislocation nucleation
   during nanoindentation
SO JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
LA English
DT Article
DE indentation and hardness; dislocations; atomistic; contact mechanics;
   grain boundaries
ID EMBEDDED-ATOM-METHOD; INDENTATION; DEFECTS; SURFACES; CRYSTALS; METALS;
   SOLIDS; LOAD
AB Nanoindentation experiments have shown that microstructural inhomogeneities across the surface of gold thin films lead to position-dependent nanoindentation behavior [Phys. Rev. B (2002), to be submitted]. The rationale for such behavior was based on the availability of dislocation sources at the grain boundary for initiating plasticity. In order to verify or refute this theory, a computational approach has been pursued. Here, a simulation study of the initial stages of indentation using the embedded atom method (EAM) is presented. First, the principles of the EAM are given, and a comparison is made between atomistic simulations and continuum models for elastic deformation. Then, the mechanism of dislocation nucleation in single crystalline gold is analyzed, and the effects of elastic anisotropy are considered. Finally, a systematic study of the indentation response in the proximity of a high angle, high sigma (low symmetry) grain boundary is presented; indentation behavior is simulated for varying indenter positions relative to the boundary. The results indicate that high angle grain boundaries are a ready source of dislocations in indentation-induced deformation. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA.
   Sandia Natl Labs, Livermore, CA 94551 USA.
   Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Lilleodden, ET (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd,MS-66-200, Berkeley, CA 94720 USA.
RI Zimmerman, Jonathan/A-8019-2012; 
OI Foiles, Stephen/0000-0002-1907-454X
NR 20
TC 187
Z9 191
U1 6
U2 69
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0022-5096
J9 J MECH PHYS SOLIDS
JI J. Mech. Phys. Solids
PD MAY
PY 2003
VL 51
IS 5
BP 901
EP 920
AR PII S0022-5096(02)00119-9
DI 10.1016/S0022-5096(02)00119-9
PG 20
WC Materials Science, Multidisciplinary; Mechanics; Physics, Condensed
   Matter
SC Materials Science; Mechanics; Physics
GA 662MZ
UT WOS:000181952400005
ER

PT J
AU Li, ZY
   Ho, KM
AF Li, ZY
   Ho, KM
TI Waveguides in three-dimensional layer-by-layer photonic crystals
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
LA English
DT Article
ID BAND-GAPS; INFRARED WAVELENGTHS; BENDS; TRANSMISSION; EMISSION; DEFECT;
   LIGHT; SLABS
AB A photonic crystal waveguide network can form in a three-dimensional layer-by-layer photonic crystal along three orthogonal directions. We investigate guided-mode band structures for different waveguide configurations by numerical calculations that combine a plane-wave expansion method with a supercell technique. The in-plane waveguide network composed of waveguides along the (100) and (010) directions of the crystal is located in a single layer of the photonic crystal. This structural design is easy to achieve experimentally. One can create these in-plane waveguides either by removing one single rod or by breaking a segment in each of an array of parallel rods. One produces the off-plane waveguide by removing some segments of rods along the (001) stacking direction of the crystal. Single-mode operation of a waveguide can be achieved by appropriate adjustment of geometrical parameters such as the location and the size of the waveguide. Intrinsic lattice symmetries in these photonic crystal waveguides have been fully employed to reduce the complexity of the numerical solution of guided-mode band structures significantly. (C) 2003 Optical Society of America.
C1 Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
   Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
RP Li, ZY (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50011 USA.
EM lizy@axel.ameslab.gov
NR 23
TC 41
Z9 41
U1 1
U2 3
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0740-3224
J9 J OPT SOC AM B
JI J. Opt. Soc. Am. B-Opt. Phys.
PD MAY
PY 2003
VL 20
IS 5
BP 801
EP 809
DI 10.1364/JOSAB.20.000801
PG 9
WC Optics
SC Optics
GA 675VB
UT WOS:000182715900002
ER

PT J
AU Hoyt, CW
   Hasselbeck, MP
   Sheik-Bahae, M
   Epstein, RI
   Greenfield, S
   Thiede, J
   Distel, J
   Valencia, J
AF Hoyt, CW
   Hasselbeck, MP
   Sheik-Bahae, M
   Epstein, RI
   Greenfield, S
   Thiede, J
   Distel, J
   Valencia, J
TI Advances in laser cooling of thulium-doped glass
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
LA English
DT Article
ID RARE-EARTH IONS; MULTIPHONON RELAXATION; CONDENSED-PHASE; FLUORIDE
   GLASS; UP-CONVERSION; REFRIGERATION; SEMICONDUCTORS
AB Recent developments in cooling thulium-doped heavy-metal fluoride glass are presented. Thulium-doped fluorozirconate (ZBLANP) is cooled to 19 K below ambient with a multiple-pass pump scheme. This represents over an order of magnitude increase from the previously reported single-pass geometry. The results agree with a simple model for anti-Stokes fluorescence cooling that includes considerations of quantum efficiency and parasitic heating mechanisms. Issues relating to a practical optical refrigerator are examined, including a general model for the effects of multiple pump passes. (C) 2003 Optical Society of America.
C1 Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Hoyt, CW (reprint author), Univ New Mexico, Dept Phys & Astron, 800 Yale Blvd NE, Albuquerque, NM 87131 USA.
NR 41
TC 76
Z9 82
U1 1
U2 7
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0740-3224
J9 J OPT SOC AM B
JI J. Opt. Soc. Am. B-Opt. Phys.
PD MAY
PY 2003
VL 20
IS 5
BP 1066
EP 1074
DI 10.1364/JOSAB.20.001066
PG 9
WC Optics
SC Optics
GA 675VB
UT WOS:000182715900033
ER

PT J
AU Kohsaka, Y
   Sasagawa, T
   Ronning, F
   Yoshida, T
   Kim, C
   Hanaguri, T
   Azuma, M
   Takano, M
   Shen, ZX
   Takagi, H
AF Kohsaka, Y
   Sasagawa, T
   Ronning, F
   Yoshida, T
   Kim, C
   Hanaguri, T
   Azuma, M
   Takano, M
   Shen, ZX
   Takagi, H
TI Angle-resolved photoemission spectroscopy of (Ca,Na)(2)CuO2Cl2 crystals:
   Fingerprints of a magnetic insulator in a heavily underdoped
   superconductor
SO JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
LA English
DT Article
DE ARPES; (Ca,Na)(2)CuO2Cl2; electronic evolution; electronic structure
ID FERMI-SURFACE; ELECTRONIC-STRUCTURE; BI2SR2CACU2O8+DELTA; LA2-XSRXCUO4;
   DISPERSION; CA2CUO2CL2; TRANSITION
AB Electronic evolution from an antiferromagnet to a high-T-c superconductor is revealed by angle-resolved photoemission experiments on tetragonal Ca1.9Na0.1CuO2Cl2 single crystals, which were successfully grown for the first time under high pressures. In this underdoped superconductor, we found clear fingerprints of the parent insulator: a shadow band and a large pseudogap. These observations are most likely described by a "chemical potential shift", which contrasts clearly with the prevailing wisdom of the "pinned chemical potential" learned from the prototype La2-xSrxCuO4, demonstrating that the route to a high-T-c superconductor is not unique.
C1 Univ Tokyo, Dept Adv Mat Sci, Kashiwa, Chiba 2778561, Japan.
   Japan Sci & Technol Corp, SORST, Kawaguchi, Saitama 3320012, Japan.
   Stanford Univ, Dept Phys Appl Phys, Stanford, CA 94305 USA.
   Stanford Univ, Stanford Synchrotron Radiat Lab, Stanford, CA 94305 USA.
   Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan.
RP Kohsaka, Y (reprint author), Univ Tokyo, Dept Adv Mat Sci, 5-1-5 Kashiwanoha, Kashiwa, Chiba 2778561, Japan.
EM takao@mail.ecc.u-tokyo.ac.jp
RI Azuma, Masaki/C-2945-2009; Takagi, Hidenori/B-2935-2010; Hanaguri,
   Tetsuo/I-6710-2012; Sasagawa, Takao/E-6666-2014
OI Azuma, Masaki/0000-0002-8378-321X; Hanaguri, Tetsuo/0000-0003-2896-0081;
   Sasagawa, Takao/0000-0003-0149-6696
NR 22
TC 21
Z9 21
U1 1
U2 6
PU PHYSICAL SOC JAPAN
PI TOKYO
PA YUSHIMA URBAN BUILDING 5F, 2-31-22 YUSHIMA, BUNKYO-KU, TOKYO, 113-0034,
   JAPAN
SN 0031-9015
J9 J PHYS SOC JPN
JI J. Phys. Soc. Jpn.
PD MAY
PY 2003
VL 72
IS 5
BP 1018
EP 1021
DI 10.1143/JPSJ.72.1018
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 695GU
UT WOS:000183823400013
ER

PT J
AU Nelson, AJ
   Meier, TC
   Saw, CK
   Griffith, LV
AF Nelson, AJ
   Meier, TC
   Saw, CK
   Griffith, LV
TI Surface and bulk chemistry of calcined UO2 powders
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID URANIUM
AB High-resolution x-ray photoemission spectroscopy (XPS) was used to examine the surface composition and chemical bonding of calcined UO2 powders as a function of. process parameters. It is believed that the surface composition of the powder grains ultimately affects packing density. XPS quantitative analysis revealed O/U ratios indicative of mixed uranium valences. In addition, high-resolution U4f(7/2,5/2) core-level spectra revealed reoxidation of U4+ to U6+ for the lower temperatures, and a reduction of U6+ to U4+ for the higher temperatures using 4% H-2/Ar. Reoxidation can also be affected by the presence of water or OH, and the powder samples calcined at the lower temperatures have the highest OH-/O2- peak area ratio. The valence-and electronic structure for the higher-temperature calcinations clearly shows a stronger 5f emission peak near the Fermi edge, a feature that is indicative of a highly localized state. Bulk structural analysis using x-ray diffraction also indicates a number of uranium oxide phases produced by calcination. However, at 600 degreesC the UO2 cubic phase resulted. (C) 2003 American Vacuum Society.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Nelson, AJ (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
NR 12
TC 4
Z9 4
U1 2
U2 12
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD MAY-JUN
PY 2003
VL 21
IS 3
BP 762
EP 765
DI 10.1116/1.1570835
PG 4
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 682NX
UT WOS:000183099300037
ER

PT J
AU Bach, HT
   Meyer, BA
   Tuggle, DG
AF Bach, HT
   Meyer, BA
   Tuggle, DG
TI Role of molecular diffusion in the theory of gas flow through
   crimped-capillary leaks
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID VISCOUS-FLOW; COEFFICIENTS; SYSTEMS
AB Gas flow through crimped-capillary leaks was studied with the use of a mass spectrometric system. The crimped-capillary leak was used as a single-stage pressure-reduction device between a gas inlet manifold and an ultrahigh-vacuum mass spectrometer. The steady state flows of binary gas mixtures (H-2-He-4 and H-2-D-2) through the crimped-capillary leak into the mass spectrometer vacuum chamber (<10(-9) Torr) were characterized over a pressure range from 5 to 5000 Torr. At pressures <5 and >1500 Torr, the gas flow is close to Knudsen diffusion (molecular flow) and viscous flow, respectively. The transition from the Knudsen diffusion to viscous flow takes place over 2 decades of pressure and is at a lower pressure range than can be explained by the combined Knudsen diffusion and viscous flow theories. This article considers the contribution of molecular diffusion (ordinary diffusion) to the theory of gas flow through crimped-capillary leak and presents a mathematical model for a multicomponent gas mixture. This model successfully predicts gas flow over a wide range of pressures especially in the transition flow regime for binary gas mixtures. (C) 2003 American Vacuum Society.
C1 Los Alamos Natl Lab, Engn Sci & Applicat Div, Tritium Sci & Engn Grp, Los Alamos, NM 87545 USA.
RP Bach, HT (reprint author), Los Alamos Natl Lab, Engn Sci & Applicat Div, Tritium Sci & Engn Grp, MS C927, Los Alamos, NM 87545 USA.
NR 13
TC 7
Z9 8
U1 3
U2 6
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD MAY-JUN
PY 2003
VL 21
IS 3
BP 806
EP 813
DI 10.1116/1.1569924
PG 8
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 682NX
UT WOS:000183099300044
ER

PT J
AU Guillorn, MA
   Hale, MD
   Merkulov, VI
   Simpson, ML
   Eres, GY
   Cui, H
   Puretzky, AA
   Geohegan, DB
AF Guillorn, MA
   Hale, MD
   Merkulov, VI
   Simpson, ML
   Eres, GY
   Cui, H
   Puretzky, AA
   Geohegan, DB
TI Integrally gated carbon nanotube field emission cathodes produced by
   standard microfabrication techniques
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID EMITTERS; ARRAYS
AB The fabrication of carbon nanotube (CNT)-based field-emission devices has recently been an area of intense investigation. Here, we report a simple process for the fabrication of integrally gated CNT field-emission cathodes that uses standard microfabrication techniques. The operation of 3 X 3 field-emitter arrays produced using this process was investigated and found to behave in a manner consistent with the Fowler-Nordheim model of field emission. (C) 2003 American Vacuum Society.
C1 Oak Ridge Natl Lab, Mol Scale Engn & Nanoscale Technol Res Grp, Oak Ridge, TN 37831 USA.
   Oak Ridge Natl Lab, Thin Film & Nanostruct Mat Phys Res Grp, Div Solid State, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
   Univ Tennessee, Dept Elect & Comp Engn, Knoxville, TN 37996 USA.
RP Guillorn, MA (reprint author), Oak Ridge Natl Lab, Mol Scale Engn & Nanoscale Technol Res Grp, POB 2008, Oak Ridge, TN 37831 USA.
RI Simpson, Michael/A-8410-2011; Puretzky, Alexander/B-5567-2016; Geohegan,
   David/D-3599-2013; Eres, Gyula/C-4656-2017
OI Simpson, Michael/0000-0002-3933-3457; Puretzky,
   Alexander/0000-0002-9996-4429; Geohegan, David/0000-0003-0273-3139;
   Eres, Gyula/0000-0003-2690-5214
NR 13
TC 20
Z9 20
U1 0
U2 3
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD MAY-JUN
PY 2003
VL 21
IS 3
BP 957
EP 959
DI 10.1116/1.1565343
PG 3
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
   Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA 692KT
UT WOS:000183660800007
ER

PT J
AU Abraham, IC
   Woodworth, JR
   Riley, ME
   Miller, PA
   Shul, RJ
   Willison, CG
AF Abraham, IC
   Woodworth, JR
   Riley, ME
   Miller, PA
   Shul, RJ
   Willison, CG
TI Electrical and plasma property measurements of a deep reactive ion
   etching Bosch process
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article; Proceedings Paper
CT IUVSTA 15th International Congress/AVS 48th International Symposium/11th
   International Conference on Solid Surfaces
CY OCT 28-NOV 02, 2001
CL SAN FRANCISCO, CALIFORNIA
SP IUVSTA, AVS
ID REFERENCE CELL; ENERGY-DISTRIBUTIONS; SHEATHS; FLUOROCARBON; DISCHARGES;
   DENSITIES
AB We measured electrical and plasma properties of a deep reactive ion etching Bosch process (Ar/SF6/C4F8) used for micromachining bulk silicon. The plasma-potential oscillations were measured by a glass-enclosed capacitive probe immersed in the plasma. We used rf-potential and current sensors installed at the output of the chuck's matching network and a calibrated equivalent circuit model to compute the chuck potential wave form. The plasma density and electron temperature were measured using a floating Langmuir double probe. Time-resolved measurements were made throughout the etch and deposition cycles of the Bosch process. Plasma densities in the reactor were quite nonuniform, with plasma densities close to the wafer chuck being more than a factor of 4 lower than densities in the center of the "bulk plasma" formed by the induction coil. Estimates of the ion energy distribution were obtained from a validated numerical model that employed the experimental data. For standard process conditions during the main etch part of the cycle, the chuck potential oscillations were in excess of 100 V-PP, but, because of the low plasma density near the wafer (>2 x 10(10) cm(-3)) and potential averaging across the resulting large sheath. width (600 mum), the width of the calculated argon ion energy distribution (IED) was. only 25 eV, for a double peaked IED centered about 80 eV The influence of rf-bias, plasma density,. and ion mass on the IEDs were also investigated. (C) 2003 American Vacuum Society.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
   L&M Technol, Albuquerque, NM 87109 USA.
RP Abraham, IC (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
NR 22
TC 8
Z9 8
U1 2
U2 8
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD MAY-JUN
PY 2003
VL 21
IS 3
BP 1112
EP 1119
DI 10.1116/1.1565145
PG 8
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
   Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA 692KT
UT WOS:000183660800033
ER

PT J
AU Dobson, PF
   Kneafsey, TJ
   Hulen, J
   Simmons, A
AF Dobson, PF
   Kneafsey, TJ
   Hulen, J
   Simmons, A
TI Porosity, permeability, and fluid flow in the Yellowstone geothermal
   system, Wyoming
SO JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH
LA English
DT Article
DE Yellowstone; hydrothermal alteration; self-sealing; permeability;
   porosity
ID NATIONAL-PARK; HYDROTHERMAL ALTERATION; DRILL CORES; OXYGEN
AB Cores from two of 13 U.S. Geological Survey research holes at Yellowstone National Park (Y-5 and Y-8) were evaluated to characterize lithology, texture, alteration, and the degree and nature of fracturing and veining. Porosity and matrix permeability measurements and petrographic examination of the cores were used to evaluate the effects of lithology and hydrothermal alteration on porosity and permeability. The intervals studied in these two core holes span the conductive zone and the upper portion of the convective geothermal reservoir. Variations in porosity and matrix permeability observed in the Y-5 and Y-8 cores are primarily controlled by lithology. Y-8 intersects three distinct lithologies: volcaniclastic sandstone, perlitic rhyolitic lava, and non-welded pumiceous ash-flow tuff. The sandstone typically has high permeability and porosity, and the tuff has very high porosity and moderate permeability, while the perlitic lava has very low porosity and is essentially impermeable. Hydrothermal self-sealing appears to have generated localized permeability barriers within the reservoir. Changes in pressure and temperature in Y-8 correspond to a zone of silicification in the volcaniclastic sandstone just above the contact with the perlitic rhyolite; this silicification has significantly reduced porosity and permeability. In rocks with inherently low matrix permeability (such as densely welded ash-flow tuff), fluid flow is controlled by the fracture network. The Y-5 core hole penetrates a thick intracaldera section of the 0.6-Ma Lava Creek ash-flow tuff. In this core, the degree of welding appears to be responsible for most of the variations in porosity, matrix permeability, and the frequency of fractures and veins. Fractures are most abundant within the more densely welded sections of the tuff. However, the most prominent zones of fracturing and mineralization are associated with hydrothermal breccias within densely welded portions of the tuff. These breccia zones represent transient conduits of high fluid flow that formed by the explosive release of overpressure in the underlying geothermal reservoir and that were subsequently sealed by supersaturated geothermal fluids. In addition to this fracture sealing, hydrothermal alteration at Yellowstone appears generally to reduce matrix permeability and focus flow along fractures, where multiple pulses of fluid flow and self-sealing have occurred. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
   Univ Utah, EGI, Salt Lake City, UT 84108 USA.
RP Dobson, PF (reprint author), Lawrence Berkeley Natl Lab, Div Earth Sci, Berkeley, CA 94720 USA.
RI Kneafsey, Timothy/H-7412-2014; Dobson, Patrick/D-8771-2015
OI Kneafsey, Timothy/0000-0002-3926-8587; Dobson,
   Patrick/0000-0001-5031-8592
NR 18
TC 33
Z9 37
U1 2
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-0273
J9 J VOLCANOL GEOTH RES
JI J. Volcanol. Geotherm. Res.
PD MAY 1
PY 2003
VL 123
IS 3-4
BP 313
EP 324
DI 10.1016/S0377-0273(03)00039-8
PG 12
WC Geosciences, Multidisciplinary
SC Geology
GA 674NA
UT WOS:000182641800004
ER

PT J
AU Schultz, JF
AF Schultz, JF
TI Quantum-cascade lasers enable infrared sensors
SO LASER FOCUS WORLD
LA English
DT Article
ID SPECTROSCOPY
AB The tunability, small size, and flexibility in the center wavelength of quantum-cascade lasers make them well-suited for sensing applications in the infrared.
C1 Pacific NW Natl Lab, Natl Secur Directorate, Richland, WA 99352 USA.
RP Schultz, JF (reprint author), Pacific NW Natl Lab, Natl Secur Directorate, 902 Battelle Blvd,MSIN K5-25, Richland, WA 99352 USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU PENNWELL PUBL CO
PI NASHUA
PA 98 SPIT BROOK RD, NASHUA, NH 03062-2801 USA
SN 0740-2511
J9 LASER FOCUS WORLD
JI Laser Focus World
PD MAY
PY 2003
VL 39
IS 5
BP 107
EP +
PG 3
WC Optics
SC Optics
GA 685CX
UT WOS:000183244200038
ER

PT J
AU Wu, M
   Michaud, EJ
   Johnson, DK
AF Wu, M
   Michaud, EJ
   Johnson, DK
TI Cloning, functional study and comparative mapping of Luzp2 to mouse
   Chromosome 7 and human Chromosome 11p13-11p14
SO MAMMALIAN GENOME
LA English
DT Article
ID DILUTION P LOCUS; PAX6 GENE; MAP; DELETION; MUTATIONS; ANIRIDIA;
   COMPLEX; REGION; MICE
AB A novel leucine-zipper gene, leucine zipper protein 2 (Luzp2), has been cloned as part of an aberrant deletion-fusion transcript in the chromosomal interval between Gas2 and Herc2 on mouse Chromosome 7 (Chr 7). Luzp2 is normally expressed only in brain and spinal cord. The human homolog of Luzp2 maps to Chr 11p13-11p14 by radiation-hybrid mapping and is deleted in some patients with Wilms tumor-Aniridia-Genitourinary anomalies-mental Retardation (WAGR) syndrome. Disruption of Luzp2 by gene targeting in mice did not result in any obvious abnormal phenotypes.
C1 Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Oak Ridge Natl Lab, Grad Sch Genome Sci & Technol, Oak Ridge, TN 37830 USA.
RP Johnson, DK (reprint author), Oak Ridge Natl Lab, Div Life Sci, POB 2009, Oak Ridge, TN 37831 USA.
NR 20
TC 7
Z9 8
U1 0
U2 1
PU SPRINGER-VERLAG
PI NEW YORK
PA 175 FIFTH AVE, NEW YORK, NY 10010 USA
SN 0938-8990
J9 MAMM GENOME
JI Mamm. Genome
PD MAY
PY 2003
VL 14
IS 5
BP 323
EP 334
DI 10.1007/s00335-002-2248-6
PG 12
WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
   Genetics & Heredity
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
   Genetics & Heredity
GA 672QC
UT WOS:000182531300004
PM 12856284
ER

PT J
AU Laskin, J
   Futrell, JH
AF Laskin, J
   Futrell, JH
TI Collisional activation of peptide ions in FT-ICR mass spectrometry
SO MASS SPECTROMETRY REVIEWS
LA English
DT Review
DE multiple-collision activation; surface-induced dissociation; peptide
   ions; collisional energy deposition function; master equation modeling;
   shattering
ID SURFACE-INDUCED DISSOCIATION; INTERNAL ENERGY-DISTRIBUTIONS;
   OFF-RESONANCE IRRADIATION; SLOW POLYATOMIC IONS; PROTONATED PEPTIDES;
   MOLECULAR-IONS; ELECTROSPRAY-IONIZATION; MONOLAYER SURFACE;
   RADICAL-CATION; KINETIC-ENERGY
AB In the last decade, the characterization of complex molecules, particularly biomolecules, became a focus of fundamental and applied research in mass spectrometry. Most of these studies utilize tandem mass spectrometry (MS/MS) to obtain structural information for complex molecules. Tandem mass spectrometry, (MS/MS) typically involves the mass selection of a primary ion, its activation by collision or photon excitation, unimolecular decay into fragment ions characteristic of the ion structure and its internal excitation, and mass analysis of the fragment ions. Although the fundamental principles of tandem mass spectrometry of relatively small molecules are fairly well-understood, our understanding of the activation and fragmentation of large molecules is much more primitive. For small ions, a single energetic collision is sufficient to dissociate the ion; however this is not the case for complex molecules. For large ions, two fundamental limits severely constrain fragmentation in tandem mass spectrometry. First, the center-of-mass collision energy - the absolute tipper limit of energy transfer in a collision process - decreases with increasing mass of the projectile ion for fixed ion kinetic energy and neutral mass. Secondly, the dramatic increase in density of states with increasing internal degrees of freedom of the ion decreases the rate of dissociation by many orders of magnitude at a given internal energy. Consequently, most practical MS/MS experiments with complex ions involve multiple-collision activation (MCA-CID), multi-photon activation, or surface-induced dissociation (SID). This review is focused on what has been learned in recent research studies concerned with fundamental aspects of MCA-CID and SID of model peptides, with an emphasis on experiments carried out with Fourier transform ion cyclotron resonance mass spectrometers (FT-ICR MS). These studies provide the first quantitative comparison of gas-phase muiltiple-collision activation and SID of peptide ions. Combining collisional energy-resolved data with RRKM-based modeling revealed the effect of peptide size and identity on energy transfer in collisions-very important characteristics of ion activation from fundamental and the analytical perspectives. Finally, the combination of FT-ICR with SID was utilized to carry out the first time-resolved experiments that examine the kinetics of peptide fragmentation. This has lead to the discovery that the time-dependence of ion dissociation varies smoothly up to a certain collision energy, and then shifts dramatically to a time-independent, extensive dissociation. This near-instantaneous "shattering" of the ion generates a large number of relatively small fragment ions. Shattering of ions on surfaces opens up a variety of dissociation pathways that are not accessible with multiple-collision and multiphoton excitation. (C) 2003 Wiley Periodicals, Inc.
C1 Fundamental Sci Directorate, Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Laskin, J (reprint author), Fundamental Sci Directorate, Pacific NW Natl Lab, POB 999 K8-88, Richland, WA 99352 USA.
RI Laskin, Julia/H-9974-2012
OI Laskin, Julia/0000-0002-4533-9644
NR 83
TC 135
Z9 137
U1 3
U2 31
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0277-7037
J9 MASS SPECTROM REV
JI Mass Spectrom. Rev.
PD MAY-JUN
PY 2003
VL 22
IS 3
BP 158
EP 181
DI 10.1002/mas.10041
PG 24
WC Spectroscopy
SC Spectroscopy
GA 703WT
UT WOS:000184305600002
PM 12838543
ER

PT J
AU Karnaraj, M
   Serin, K
   Kolbe, M
   Neuking, K
   Eggeler, G
AF Karnaraj, M
   Serin, K
   Kolbe, M
   Neuking, K
   Eggeler, G
TI Shear creep deformation of the super alloy single crystal CMSX-4 at high
   temperatures and low stresses
SO MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
LA English
DT Article
DE super alloy single crystals; creep under different crystallographic
   loading conditions; shear creep deformation; specific macroscopic
   crystallographic shear systems; stress exponents; apparent creep
   activation energies
ID STRAIN ANALYSIS; NICKEL; 1000-DEGREES-C; SPECIMEN; STATE
AB In the present paper we investigate the shear creep behavior of the single crystal super alloy CMSX-4 at temperatures between 950 and 1100degreesC and shear stresses ranging from 80 to 155 MPa. A double shear creep test technique is used to study the shear creep behavior of four specific macroscopic crystallographic shear systems defined by a specific crystallographic shear plane and a specific crystallographic shear direction (systems investigated: {001}<110>, {100}<010>, {011}<01-1>, and {111}<01-1>). The shear creep behavior is analyzed in terms of the shape of individual creep curves and in terms of the stress and the temperature dependence of the secondary shear creep rate. Individual creep curves are generally characterized by a pronounced primary creep range where creep rates decrease by up to three orders of magnitude. A sharp creep rate minimum is not observed. The secondary creep range starts at shear stresses of the order of 0.02 and is followed by a secondary creep range which extends over shear strain ranges of the order of 0.1. No pronounced increase of shear creep rate in the later stages of creep is observed. Norton plots yield power law stress exponents ranging from 5.5 to 9.7. The temperature dependence of the secondary creep rate is of an Arrhenius type and apparent activation energies between 549 and 690 kJ/mol were found. There is a clear influence of crystallography on shear creep rates, which vary between different macroscopic crystallographic shear systems; this effect decreases with increasing temperature. The shear creep results obtained in the present study are discussed in the light of results from uniaxial testing and in the light of underlying microscopic deformation processes.
C1 Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany.
   Indian Inst Technol, Dept Met Engn, Madras 600036, Tamil Nadu, India.
   Oak Ridge Natl Lab, Div Met & Ceram, Oak Ridge, TN USA.
   DLR, Inst Raumsimulat, D-5000 Cologne, Germany.
RP Eggeler, G (reprint author), Ruhr Univ Bochum, Inst Werkstoffe, D-44780 Bochum, Germany.
RI Eggeler, Gunther/R-9833-2016
NR 29
TC 0
Z9 0
U1 0
U2 2
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0933-5137
J9 MATERIALWISS WERKST
JI Materialwiss. Werkstofftech.
PD MAY
PY 2003
VL 34
IS 5
BP 469
EP 477
PG 9
WC Materials Science, Multidisciplinary
SC Materials Science
GA 682WP
UT WOS:000183115600006
ER

PT J
AU Showalter, RE
   Visarraga, DB
AF Showalter, RE
   Visarraga, DB
TI Absorption-delay models of heat transport
SO MATHEMATICAL MODELS & METHODS IN APPLIED SCIENCES
LA English
DT Article
DE mathematical modeling; heat transfer; absorption; memory; kinetic
   models; approximation
ID SINGLE-PHASE FLOW; HOMOGENIZATION; MEDIA
AB A temperature jump in water traveling through a pipe is delayed by the absorption of heat into the pipe wall. The convective transport of heat by the water and the conductive exchange with the interior pipe wall are described by an exact but highly singular micro-model. The limiting form of this parabolic initial-boundary-value problem is a distributed microstructure model, which can successively be better approximated by simpler first- and second-order kinetic models. This model provides a means to validate and calibrate these classical multi-temperature kinetic models which are used to describe the delay.
C1 Univ Texas, Dept Math, Austin, TX 78712 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Showalter, RE (reprint author), Univ Texas, Dept Math, Austin, TX 78712 USA.
NR 21
TC 0
Z9 0
U1 0
U2 0
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA JOURNAL DEPT PO BOX 128 FARRER ROAD, SINGAPORE 912805, SINGAPORE
SN 0218-2025
J9 MATH MOD METH APPL S
JI Math. Models Meth. Appl. Sci.
PD MAY
PY 2003
VL 13
IS 5
BP 645
EP 660
DI 10.1142/S0218202503002684
PG 16
WC Mathematics, Applied
SC Mathematics
GA 687ZM
UT WOS:000183407300002
ER

PT J
AU Williams, PT
AF Williams, PT
TI The illusion of improved physical fitness and reduced mortality
SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
LA English
DT Article
DE morbidity; measurement error; cardiovascular disease; statistical
   artifact; public health policy; regression to the mean
ID ALL-CAUSE MORTALITY; HEART-DISEASE; MEN; EXERCISE; LEVEL; ASSOCIATION;
   SEDENTARY; HEALTHY; WOMEN; RISK
AB Purpose: To conduct a computer simulation to assess the effects of measurement error on prospective epidemiological studies that attribute mortality outcomes to apparent changes in the independent variable (e.g., physical fitness or activity) at baseline. Methods: As an example, we evaluated the design of the Aerobics Center Longitudinal Study (ACLS). This study compared apparent changes in fitness between two baseline visits to mortality during a subsequent 5-yr follow-up period. Unfit men who were reclassified as fit at the second baseline examination (6.6% of sample) and fit men who were reclassified as unfit (2.3%) had follow-up mortality rates that were between those of men who were consistently classified as fit or unfit. This study design was simulated assuming that differences between baseline treadmill test durations were due to measurement error alone. Based on our own data, we estimated that repeat measurements of treadmill test duration have correlation of r = 0.89 in the absence of any real fitness change. Results: There is excellent agreement between the published ACLS risk reductions and our simulated reductions for both cardiovascular disease (CVD) and total mortality. Compared with the "Unfit-->Unfit" (the referent group), the estimated relative risks from the simulations for men who were reclassified as fit (i.e., "Unfit-->Fit") were 0.57 for total mortality and 0.52 for CVD mortality, and for men who remained classified as fit ("Fit-->Fit"), they were 0.33 for total mortality and 0.20 for CVD mortality. Conclusion: The imprecision of the fitness measurement alone (i.e., measurement error) is sufficient to produce the reported ACLS risk reductions in initially unfit men who get reclassified as fit in a subsequent clinic visit. This statistical artifact will apply to other studies that use this design.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Williams, PT (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
FU NHLBI NIH HHS [HL-58621]; NIA NIH HHS [R03 AG032004, R03 AG032004-01A1]
NR 17
TC 9
Z9 10
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0195-9131
J9 MED SCI SPORT EXER
JI Med. Sci. Sports Exerc.
PD MAY
PY 2003
VL 35
IS 5
BP 736
EP 740
DI 10.1249/01.MSS.0000064995.89335.40
PG 5
WC Sport Sciences
SC Sport Sciences
GA 675UH
UT WOS:000182714200004
PM 12750581
ER

PT J
AU Perricone, MJ
   Dupont, JN
   Cieslak, MJ
AF Perricone, MJ
   Dupont, JN
   Cieslak, MJ
TI Solidification of hastelloy alloys: An alternative interpretation
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
   MATERIALS SCIENCE
LA English
DT Article
ID METALLURGY; SYSTEM; WELDS
AB HASTELLOY C-22 and C-276 are engineering nickel-based alloys that served as the focus of a comprehensive examination of the microstructural development of this class of materials presented previously by Cieslak et al. The work presented here provides a re-examination of this study. The use of computational thermodynamic algorithms combined with solidification-path calculations based on experimentally determined solute-partition data eliminates the need for many assumptions and serves as the basis for the solute-redistribution model that is presented here. A new series of solidification sequences for HASTELLOY C-22 and C-276 is proposed based on this model, and these conclusions are supported by the microstructural characterization presented in the previous work.
C1 Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA.
   Sandia Natl Labs, Mat & Proc Ctr, Albuquerque, NM 87185 USA.
   Sandia Natl Labs, Mat & Proc Sci Ctr, Albuquerque, NM 87185 USA.
RP Perricone, MJ (reprint author), Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA.
NR 14
TC 6
Z9 6
U1 2
U2 8
PU MINERALS METALS MATERIALS SOC
PI WARRENDALE
PA 184 THORN HILL RD, WARRENDALE, PA 15086 USA
SN 1073-5623
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD MAY
PY 2003
VL 34A
IS 5
BP 1127
EP 1132
DI 10.1007/s11661-003-0132-y
PG 6
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
   Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 675DA
UT WOS:000182676700009
ER

PT J
AU Rector, DM
   Ranken, DM
   George, JS
AF Rector, DM
   Ranken, DM
   George, JS
TI High-performance confocal system for microscopic or endoscopic
   applications
SO METHODS
LA English
DT Article
DE virtual pinhole; confocal microscope; endoscope; microlens array;
   micromirror device; high-speed camera
ID IN-VIVO; IMAGE
AB We designed a high-performance confocal system that can be easily adapted to an existing light microscope or coupled with an endoscope for remote imaging. The system employs spatially and temporally patterned illumination produced by one of several mechanisms, including a micromirror array video projection device driven by a computer video source or a microlens array scanned by a piezo actuator in the microscope illumination path. A series of subsampled "component" video images are acquired from a solid-state video camera. Confocal images are digitally reconstructed using "virtual pinhole" synthetic aperture techniques applied to the collection of component images. Unlike conventional confocal techniques that raster scan a single detector and illumination point, our system samples multiple locations in parallel, with particular advantages for monitoring fast dynamic processes. We compared methods of patterned illumination and confocal image reconstruction by characterizing the point spread function, contrast, and intensity of imaged objects. Sample 3D reconstructions include a diatom and a Golgi-stained nerve cell collected in transmission. (C) 2003 Elsevier Science (USA). All rights reserved.
C1 Los Alamos Natl Lab, Biophys Grp, Los Alamos, NM 87545 USA.
RP George, JS (reprint author), Los Alamos Natl Lab, Biophys Grp, POB 1663,P-21,MS-D454, Los Alamos, NM 87545 USA.
FU NCRR NIH HHS [RR14117]; NIMH NIH HHS [MH60263]
NR 21
TC 18
Z9 18
U1 1
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1046-2023
J9 METHODS
JI Methods
PD MAY
PY 2003
VL 30
IS 1
BP 16
EP 27
DI 10.1016/S1046-2023(03)00004-5
PG 12
WC Biochemical Research Methods; Biochemistry & Molecular Biology
SC Biochemistry & Molecular Biology
GA 672DQ
UT WOS:000182506200003
PM 12695100
ER

PT J
AU Kuske, CR
   Ticknor, LO
   Busch, JD
   Gehring, CA
   Whitham, TG
AF Kuske, CR
   Ticknor, LO
   Busch, JD
   Gehring, CA
   Whitham, TG
TI The pinyon rhizosphere, plant stress, and herbivory affect the abundance
   of microbial decomposers in soils
SO MICROBIAL ECOLOGY
LA English
DT Article
ID ENVIRONMENTAL-STRESS; SELECTIVE MEDIUM; PINE; PSEUDOMONAS; DIVERSITY;
   ECTOMYCORRHIZAE; SUPPRESSION; BIOCONTROL; PATHOGENS
AB In terrestrial ecosystems, changes in environmental conditions that affect plant performance cause a cascade of effects through many trophic levels. In a 2-year field study, seasonal abundance measurements were conducted for fast-growing bacterial heterotrophs, humate-degrading actinomycetes, fungal heterotrophs, and fluorescent pseudomonads that represent the decomposers in soil. Links between plant health and soil microbiota abundance in pinyon rhizospheres were documented across two soil types: a dry, nutrient-poor volcanic cinder field and a sandy-loam soil. On the stressful cinder fields, we identified relationships between soil decomposer abundance, pinyon age, and stress due to insect herbivory. Across seasonal variation, consistent differences in microbial decomposer abundance were identified between the cinders and sandy-loam soil. Abundance of bacterial heterotrophs and humate-degrading actinomycetes was affected by both soil nutritional status and the pinyon rhizosphere. In contrast, abundance of the fungal heterotrophs and fluorescent pseudomonads was affected primarily by the pinyon rhizosphere. On the cinder field, the three bacterial groups were more abundant on 150-year-old trees than on 60-year-old trees, whereas fungal heterotrophs were unaffected by tree age. Fungal heterotrophs and actinomycetes were more abundant on insect-resistant trees than on susceptible trees, but the opposite was true for the fluorescent pseudomonads. Although all four groups were present in all the environments, the four microbial groups were affected differently by the pinyon rhizosphere, by tree age, and by tree stress caused by the cinder soil and insect herbivory.
C1 Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
   Los Alamos Natl Lab, Decis Applicat Div, Los Alamos, NM 87545 USA.
   No Arizona Univ, Dept Biol, Flagstaff, AZ 86011 USA.
   No Arizona Univ, Merriam Powell Ctr Environm Res, Flagstaff, AZ 86011 USA.
RP Kuske, CR (reprint author), Los Alamos Natl Lab, Biosci Div, POB 1663, Los Alamos, NM 87545 USA.
NR 41
TC 18
Z9 18
U1 2
U2 8
PU SPRINGER-VERLAG
PI NEW YORK
PA 175 FIFTH AVE, NEW YORK, NY 10010 USA
SN 0095-3628
J9 MICROBIAL ECOL
JI Microb. Ecol.
PD MAY
PY 2003
VL 45
IS 4
BP 340
EP 352
DI 10.1007/s00248-002-1042-z
PG 13
WC Ecology; Marine & Freshwater Biology; Microbiology
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
   Microbiology
GA 685XE
UT WOS:000183289000003
PM 12704562
ER

PT J
AU Horstemeyer, MF
   Baskes, MI
   Prantil, VC
   Philliber, J
   Vonderheide, S
AF Horstemeyer, MF
   Baskes, MI
   Prantil, VC
   Philliber, J
   Vonderheide, S
TI A multiscale analysis of fixed-end simple shear using molecular
   dynamics, crystal plasticity, and a macroscopic internal state variable
   theory
SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
LA English
DT Article
ID EMBEDDED-ATOM METHOD; POLYCRYSTAL ELASTOVISCOPLASTICITY; LENGTH SCALE;
   DEFORMATION; SIMULATIONS; METALS; STRAIN
AB We examine FCC nickel undergoing simple shear by using three different numerical frameworks formulated at three different size scales. The three frameworks included embedded atom method potentials used in molecular dynamics simulations, crystal plasticity used in finite element simulations, and a macroscale internal state variable formulation used in finite element simulations. Simple shear simulations were performed in which the specimen aspect ratio was varied to give insight into the homogeneous and inhomogeneous aspects of large deformation. This study revealed that the 'apparent' yield stress was sensitive to the specimen aspect ratio except when the length-to-height ratio reached about 8:1, the yield stress remained constant. The three numerical frameworks gave similar qualitative responses related to inhomogeneous stress and strain distributions in the corner regions of the specimens and also similar responses in the centralized homogeneous deformation region. However, when comparing the shear stress distribution for the finite element analyses to the atomistic simulations, a much narrower distribution arose for the finite element analyses due to the lack of thermal vibrations experienced in the atomistic simulations at 300 K. A 10 K an atomistic simulation which dampened out the high frequency thermal vibrations verified this reasoning. Three different sizes of blocks of atoms were also used in the atomistic simulations and the results showed very similar stress and strain distributions with respect to each other indicating that no size scale effect is evidenced when normalized by the global shear stress. However, a size scale effect exists related to the global (volume average) shear stress in the specimen. As the specimen size increased, the yield stress decreased. Finally, when comparing the three different numerical frameworks, the location of maximum dislocation nucleation occurred at the location of the maximum plastic spin, stress gradients, and strain gradients.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Milwaukee Sch Engn, Dept Engn Mech, Milwaukee, WI 53202 USA.
   Sandia Natl Labs, Ctr Mat Sci & Engn, Livermore, CA 94551 USA.
RP Horstemeyer, MF (reprint author), Mississippi State Univ, Dept Engn Mech, 206 Carpenter Bldg, Mississippi State, MS 39762 USA.
OI Horstemeyer, Mark/0000-0003-4230-0063
NR 24
TC 44
Z9 47
U1 0
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0965-0393
J9 MODEL SIMUL MATER SC
JI Model. Simul. Mater. Sci. Eng.
PD MAY
PY 2003
VL 11
IS 3
BP 265
EP 286
AR PII S0965-0393(03)53075-3
DI 10.1088/0965-0393/11/3/301
PG 22
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 683FN
UT WOS:000183137700002
ER

PT J
AU Hoyt, JJ
   Garvin, JW
   Webb, EB
   Asta, M
AF Hoyt, JJ
   Garvin, JW
   Webb, EB
   Asta, M
TI An embedded atom method interatomic potential for the Cu-Pb system
SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
LA English
DT Article
ID ADSORBED METAL MONOLAYERS; MONTE-CARLO-SIMULATION; SURFACE SEGREGATION;
   TRANSITION-METALS; SOLID-SOLUTIONS; PHASE-DIAGRAM; FCC METALS;
   LOW-INDEX; LEAD; NI
AB A simple procedure is used to formulate a Cu-Pb pair interaction function within the embedded atom (EAM) method framework. Embedding, density and pair functions for pure Cu and pure Pb are taken from previously published EAM studies. Optimization of the Cu-Pb potential was achieved by comparing with experiment the computed heats of mixing for Cu-Pb liquid alloys and the equilibrium phase diagram, the latter being determined via a thermodynamic integration technique. The topology of the temperature-composition phase diagram computed with this EAM potential is consistent with experiment and features a liquid-liquid miscibility gap, low solubility of Pb in solid Cu and a monotectic reaction at approximately 1012 K.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
   Univ Iowa, Dept Mech & Ind Engn, Iowa City, IA 52242 USA.
   Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
RP Sandia Natl Labs, MS 1411, Albuquerque, NM 87185 USA.
NR 65
TC 39
Z9 44
U1 1
U2 20
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0965-0393
EI 1361-651X
J9 MODEL SIMUL MATER SC
JI Model. Simul. Mater. Sci. Eng.
PD MAY
PY 2003
VL 11
IS 3
BP 287
EP 299
AR PII S0965-0393(03)59032-5
DI 10.1088/0965-0393/11/3/302
PG 13
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 683FN
UT WOS:000183137700003
ER

PT J
AU Radhakrishnan, B
   Zacharia, T
AF Radhakrishnan, B
   Zacharia, T
TI Monte Carlo simulation of stored energy driven interface migration
SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
LA English
DT Article
ID GRAIN-GROWTH; RECRYSTALLIZATION; MODEL
AB The linear relationship, V = muF where V is the interface velocity, mu is the mobility and F is the driving force is captured only under restricted conditions in conventional Monte Carlo simulations of recrystallization that use a bulk deformation stored energy term in the energy Hamiltonian. In this paper, the migration of an interface driven by a difference in the stored energy of deformation across the interface is simulated using a Monte Carlo approach where the stored energy of deformation is represented as the surface energy of cells/subgrains formed by dynamic recovery during deformation. The interface migration velocity is calculated as a function of the driving force as well as the interface mobility. The simulations capture the linear relationship between interface velocity and driving force for constant interface mobility, and also between interface velocity and mobility for constant driving force, assuming that there is no recovery of the subgrain structure in the bulk of the material during interface migration, and the lattice temperatures are high enough to prevent the locking of the interface in positions of local energy minima. In the presence of simultaneous recovery by subgrain growth in the bulk, the driving force across the interface gradually decreases during interface migration, causing a decrease in the interface velocity. The relevance of these results to mesoscale modelling of recrystallization is discussed.
C1 Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA.
RP Radhakrishnan, B (reprint author), Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA.
OI Zacharia, Thomas/0000-0001-6463-5425
NR 7
TC 13
Z9 13
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0965-0393
J9 MODEL SIMUL MATER SC
JI Model. Simul. Mater. Sci. Eng.
PD MAY
PY 2003
VL 11
IS 3
BP 307
EP 319
AR PII S0965-0393(03)58943-4
DI 10.1088/0965-0393/11/3/304
PG 13
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 683FN
UT WOS:000183137700005
ER

PT J
AU Craig, L
   Taylor, RK
   Pique, ME
   Adair, BD
   Arvai, AS
   Singh, M
   Lloyd, SJ
   Shin, DS
   Getzoff, ED
   Yeager, M
   Forest, KT
   Tainer, JA
AF Craig, L
   Taylor, RK
   Pique, ME
   Adair, BD
   Arvai, AS
   Singh, M
   Lloyd, SJ
   Shin, DS
   Getzoff, ED
   Yeager, M
   Forest, KT
   Tainer, JA
TI Type IV pilin structure and assembly: X-ray and EM analyses of Vibrio
   cholerae toxin-coregulated pilus and Pseudomonas aeruginosa PAK pilin
SO MOLECULAR CELL
LA English
DT Article
ID ENTEROPATHOGENIC ESCHERICHIA-COLI; AMINO-ACID SUBSTITUTIONS; BUCCAL
   EPITHELIAL-CELLS; C-TERMINAL REGION; TWITCHING MOTILITY; POLAR PILI;
   COLONIZATION; SUBUNIT; NEISSERIA; ADHERENCE
AB Pilin assembly into type IV pili is required for virulence by bacterial pathogens that cause diseases such as cholera, pneumonia, gonorrhea, and meningitis. Crystal structures of soluble, N-terminally truncated pilin from Vibrio cholera toxin-coregulated pilus (TCP) and full-length PAK pilin from Pseudomonas aeruginosa reveal a novel TCP fold, yet a shared architecture for the type IV pilins. In each pilin subunit a conserved, extended, N-terminal alpha helix wrapped by beta strands anchors the structurally variable globular head. Inside the assembled pilus, characterized by cryo-electron microscopy and crystallography, the extended hydrophobic alpha helices make multisubunit contacts to provide mechanical strength and flexibility. Outside, distinct interactions of adaptable heads contribute surface variation for specificity of pilus function in antigenicity, motility, adhesion, and colony formation.
C1 Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA.
   Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA.
   Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
   Dartmouth Coll Sch Med, Dept Microbiol & Immunol, Hanover, NH 03755 USA.
   Scripps Clin, Div Cardiovasc Dis, La Jolla, CA 92037 USA.
   Univ Wisconsin, Dept Bacteriol, Madison, WI 53706 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Tainer, JA (reprint author), Scripps Res Inst, Dept Mol Biol, La Jolla, CA 92037 USA.
FU NIAID NIH HHS [AI22160, AI31535]; NIGMS NIH HHS [GM59721]
NR 55
TC 169
Z9 178
U1 1
U2 12
PU CELL PRESS
PI CAMBRIDGE
PA 1100 MASSACHUSETTS AVE, CAMBRIDGE, MA 02138 USA
SN 1097-2765
J9 MOL CELL
JI Mol. Cell
PD MAY
PY 2003
VL 11
IS 5
BP 1139
EP 1150
DI 10.1016/S1097-2765(03)00170-9
PG 12
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 683GE
UT WOS:000183139400006
PM 12769840
ER

PT J
AU Hoelz, A
   Nairn, AC
   Kuriyan, J
AF Hoelz, A
   Nairn, AC
   Kuriyan, J
TI Crystal structure of a tetradecameric assembly of the association domain
   of Ca(2+)/calmodulin-dependent kinase II
SO MOLECULAR CELL
LA English
DT Article
ID DEPENDENT PROTEIN-KINASE; TRANSPORT FACTOR-2 NTF2; CALMODULIN; DENSITY;
   COMPLEX; ALPHA; TOOL; CRYSTALLOGRAPHY; AUTOREGULATION; RECOGNITION
AB We report the crystal structure of the 143 residue association domain of Ca(2+)/calmodulin-dependent protein kinase II (CaMKII). The association domain forms a hub-like assembly, composed of two rings of seven protomers each, which are stacked head to head and held together by extensive interfaces. The tetradecameric organization of the assembly was confirmed by analytical ultracentrifugation and multiangle light scattering. Individual protomers form wedge-shaped structures from which N-terminal helical segments that connect to the kinase domain extend toward the equatorial plane of the assembly, consistent with the arrangement of the kinase domains in a second outer ring. A deep and highly conserved pocket present within the association domain may serve as a docking site for proteins that interact with CaMKII.
C1 Rockefeller Univ, New York, NY 10021 USA.
   Yale Univ, Sch Med, Dept Psychiat, New Haven, CT USA.
   Univ Calif Berkeley, Howard Hughes Med Inst, Dept Mol & Cell Biol, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Howard Hughes Med Inst, Dept Chem, Berkeley, CA 94720 USA.
   Lawrence Berkeley Lab, Phys Biosci Div, Berkeley, CA 94720 USA.
RP Kuriyan, J (reprint author), Rockefeller Univ, 1230 York Ave, New York, NY 10021 USA.
EM kuriyan@uclink.berkeley.edu
OI Nairn, Angus/0000-0002-7075-0195
NR 39
TC 106
Z9 110
U1 0
U2 3
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 1097-2765
J9 MOL CELL
JI Mol. Cell
PD MAY
PY 2003
VL 11
IS 5
BP 1241
EP 1251
DI 10.1016/S1097-2765(03)00171-0
PG 11
WC Biochemistry & Molecular Biology; Cell Biology
SC Biochemistry & Molecular Biology; Cell Biology
GA 683GE
UT WOS:000183139400014
PM 12769848
ER

PT J
AU Weber, TJ
   Markillie, LM
AF Weber, TJ
   Markillie, LM
TI Regulation of activator protein-1 by 8-iso-prostaglandin E-2 in a
   thromboxane A(2) receptor-dependent and -independent manner
SO MOLECULAR PHARMACOLOGY
LA English
DT Article
ID SMOOTH-MUSCLE CELLS; RENAL EPITHELIAL-CELLS; NF-KAPPA-B; PROSTAGLANDIN
   E-2; ENDOTHELIAL-CELLS; HUMAN PLATELETS; KINASE-C; PROLIFERATION;
   ISOFORMS; ISOPROSTANES
AB The thromboxane (TX) A(2) receptor (TP) encompasses two alternatively spliced forms, termed the platelet/placental (TP-P) and endothelial (TP-E) type receptors. Experimental evidence suggests that TP activity may be modulated by novel ligands, termed the isoprostanes, that paradoxically act as TP agonists in smooth muscle and TP antagonists in platelet preparations. Here we have investigated whether prototypical isoprostanes 8-iso-prostaglandin (PG)F-2alpha and 8-iso-PGE(2) regulate the activity of TP isoforms expressed in Chinese hamster ovary (CHO) cells using activator protein-1 (AP-1)-luciferase activity as a reporter. AP-1-luciferase activity was increased by a TP agonist [9,11-dideoxy-9alpha,11alpha-methanoepoxy PGF(2alpha) (U46619)] in CHO cells transfected with the human TP-P and TP-E receptors, and this response was fully inhibited by TP antagonists [1S-[1alpha,2beta(Z),3alpha,5alpha]]-7-[3-[[4-iodophenyl)sulfonyl]amino]-6,6-dimethylbicyclo[3.1.1]hept-2-yl]-5-heptenoic acid (I-SAP) and [1S-[1alpha,2alpha(Z),3alpha,4alpha]]-7-[[2[(phenylamino)carbonyl]hydrazino] methyl]-7-oxabicyclo[2.2.1]hept-2-yl]-5-heptenoic acid (SQ 29,548)]. AP-1-luciferase activity was potently (nanomolar concentrations) increased by 8-iso-PGE(2) in CHO TP-P and TP-E cells, and this response was partially inhibited by cotreatment of cells with TP antagonists, whereas 8-iso-PGF(2alpha) was without effect. Cyclooxygenase inhibitors did not abolish 8-iso-PGE(2) mediated AP-1-luciferase activity, indicating that this response is not dependent on de novo TXA(2) biosynthesis. Interestingly, 8-iso-PGE(2)-mediated AP-1 -luciferase activity was near maximal in naive cells between 1 and 10 nM concentrations, and this response was not inhibited by TP antagonist or reproduced by agonists for TP or EP1/EP3 receptors. These observations 1) support a role for novel ligands in the regulation of TP-dependent signaling, 2) indicate that TP-P and TP-E couple to AP-1, 3) provide further evidence that isoprostanes function as TP agonists in a cell-type specific fashion, and 4) indicate that additional targets regulated by 8-iso-PGE(2) couple to AP-1.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Weber, TJ (reprint author), Pacific NW Natl Lab, 790 6th St,P7-56, Richland, WA 99352 USA.
NR 39
TC 16
Z9 17
U1 0
U2 0
PU AMER SOC PHARMACOLOGY EXPERIMENTAL THERAPEUTICS
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0026-895X
J9 MOL PHARMACOL
JI Mol. Pharmacol.
PD MAY
PY 2003
VL 63
IS 5
BP 1075
EP 1081
DI 10.1124/mol.63.5.1075
PG 7
WC Pharmacology & Pharmacy
SC Pharmacology & Pharmacy
GA 667NQ
UT WOS:000182238900014
PM 12695536
ER

PT J
AU Majumdar, D
   Balasubramanian, K
AF Majumdar, D
   Balasubramanian, K
TI A theoretical study of potential energy curves and spectroscopic
   constants of VC
SO MOLECULAR PHYSICS
LA English
DT Article
ID RELATIVISTIC EFFECTIVE POTENTIALS; DENSITY-FUNCTIONAL METHODS; ROW
   TRANSITION-METAL; SPIN-ORBIT OPERATORS; ELECTRONIC-STRUCTURE;
   PHOTOELECTRON-SPECTROSCOPY; AB-INITIO; STATES; CLUSTERS; MONOCARBIDE
AB Potential energy curves for the various low-lying electronic states of VC have been studied using complete active space multi-configuration self-consistent field (CASMCSCF) followed by first-order and multireference singles and doubles configuration interaction (FOCI, MRSDCI) calculations. The MRSDCI calculations included up to 6 million configurations. Two very low-lying electronic states are found as candidates for the ground state of VC, namely a high spin state (4)Delta and a low-spin (2)Delta state, which is favoured at higher levels. A number of low-lying excited electronic states of VC are predicted, which are yet to be observed. The low-lying electronic states of VC are found to be ionic as inferred from the dipole moments and the charge density calculations. Electron donation and the back-donation process are suggested to be operative in the V-C bond formation.
C1 Univ Calif Davis, Dept Appl Sci, Livermore, CA 94550 USA.
   Lawrence Livermore Natl Lab, Chem & Mat Sci Directorate, Livermore, CA 94550 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Glenn T Seaborg Ctr, Berkeley, CA 94720 USA.
RP Balasubramanian, K (reprint author), Univ Calif Davis, Dept Appl Sci, Livermore, CA 94550 USA.
NR 32
TC 12
Z9 12
U1 0
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0026-8976
J9 MOL PHYS
JI Mol. Phys.
PD MAY
PY 2003
VL 101
IS 9
BP 1369
EP 1376
DI 10.1080/0026897031000094434
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 698NW
UT WOS:000184006500017
ER

PT J
AU Tan, SY
   Guschin, D
   Davalos, A
   Lee, YL
   Spratt, K
   Ullman, C
   Reynolds, L
   Moore, M
   Case, CC
   Pabo, CO
   Campisi, J
   Gregory, PD
AF Tan, SY
   Guschin, D
   Davalos, A
   Lee, YL
   Spratt, K
   Ullman, C
   Reynolds, L
   Moore, M
   Case, CC
   Pabo, CO
   Campisi, J
   Gregory, PD
TI ZFP transcription therapy - Single gene specificity genome wide
SO MOLECULAR THERAPY
LA English
DT Meeting Abstract
CT 6th Annual Meeting of the American-Society-of-Gene-Therapy
CY JUN 04-08, 2003
CL WASHINGTON, D.C.
SP Amer Soc Gene Therapy
C1 Sangamo BioSci Inc, Richmond, CA USA.
   Lawrence Berkeley Lab, Life Sci Div, Berkeley, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1525-0016
J9 MOL THER
JI Mol. Ther.
PD MAY
PY 2003
VL 7
IS 5
MA 776
BP S299
EP S299
PN 2
PG 1
WC Biotechnology & Applied Microbiology; Genetics & Heredity; Medicine,
   Research & Experimental
SC Biotechnology & Applied Microbiology; Genetics & Heredity; Research &
   Experimental Medicine
GA 676FH
UT WOS:000182740300775
ER

PT J
AU Zhang, HF
   Wang, CM
   Buck, EC
   Wang, LS
AF Zhang, HF
   Wang, CM
   Buck, EC
   Wang, LS
TI Synthesis, characterization, and manipulation of helical SiO2
   nanosprings
SO NANO LETTERS
LA English
DT Article
ID CARBON NANOTUBES; NANOWIRES; MECHANISM; MORPHOLOGY
AB Amorphous helical SiO2 nanosprings (80 to 140 nm in diameter and up to 8 microns long) were synthesized with a chemical vapor deposition technique, characterized and manipulated by scanning (SEM) and transmission (TEM) electron microscopy and atomic force microscopy (AFM). The helical nanosprings were observed in the middle of a straight nanowire and were formed by a perturbation during the growth of the straight nanowire. Contraction and expansion of the helical nanosprings were observed under in situ electron beam heating during TEM, as well as bending induced by an AFM tip, suggesting that the helical nanosprings are highly flexible and may have potential applications in nanomechanical, nanoelectronmagnetic devices, and composite materials.
C1 Washington State Univ, Dept Phys, Richland, WA 99352 USA.
   Pacific NW Natl Lab, WR Riley Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Wang, LS (reprint author), Washington State Univ, Dept Phys, 2710 Univ Dr, Richland, WA 99352 USA.
RI Buck, Edgar/D-4288-2009; Buck, Edgar/N-7820-2013
OI Buck, Edgar/0000-0001-5101-9084
NR 18
TC 170
Z9 170
U1 5
U2 52
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD MAY
PY 2003
VL 3
IS 5
BP 577
EP 580
DI 10.1021/nl0341180
PG 4
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
   Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
   Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
   Physics
GA 681MN
UT WOS:000183040100002
ER

PT J
AU Mehta, A
   Kumar, P
   Dadmun, MD
   Zheng, J
   Dickson, RM
   Thundat, T
   Sumpter, BG
   Barnes, MD
AF Mehta, A
   Kumar, P
   Dadmun, MD
   Zheng, J
   Dickson, RM
   Thundat, T
   Sumpter, BG
   Barnes, MD
TI Oriented nanostructures from single molecules of a semiconducting
   polymer: Polarization evidence for highly aligned intramolecular
   geometries
SO NANO LETTERS
LA English
DT Article
ID ELECTRONIC-ENERGY TRANSFER; CONJUGATED POLYMERS; INDIVIDUAL MOLECULES;
   SPECTROSCOPY; NANOPHOTONICS
AB We report the observation of uniformly oriented transition moments perpendicular to the support substrate in single molecules of a conjugated polymer (MEH-PPV) isolated by ink-jet printing techniques. Fluorescence imaging combined with atomic force microscopy and polarization modulation studies, supported by molecular mechanics simulation, provides compelling evidence of polymer nanoparticle (single-molecule) structures with an extraordinary degree of intramolecular order. This is a general technique for preparing oriented nanostructures from structurally similar polymers.
C1 Oak Ridge Natl Lab, Div Sci, Oak Ridge, TN 37831 USA.
   Oak Ridge Natl Lab, Life Sci Comp Sci & Math Div, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.
   Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA.
RP Barnes, MD (reprint author), Oak Ridge Natl Lab, Div Sci, Oak Ridge, TN 37831 USA.
RI Sumpter, Bobby/C-9459-2013
OI Sumpter, Bobby/0000-0001-6341-0355
NR 20
TC 41
Z9 41
U1 2
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD MAY
PY 2003
VL 3
IS 5
BP 603
EP 607
DI 10.1021/nl0340733
PG 5
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
   Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
   Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
   Physics
GA 681MN
UT WOS:000183040100008
ER

PT J
AU Han, WQ
   Zettl, A
AF Han, WQ
   Zettl, A
TI Coating single-walled carbon nanotubes with tin oxide
SO NANO LETTERS
LA English
DT Article
ID GAS SENSORS; VAPOR-DEPOSITION; FILMS; FUNCTIONALIZATION
AB Single-walled carbon nanotubes coated with crystalline tin oxide by a simple chemical-solution route are reported. The room-temperature chemical treatment results in a nominally complete and uniform coating over the entire outer surface of singular nanotubes, nanotube bundles, and also fullerene-like nanoparticles. The samples have been characterized by high-resolution transmission electron microscopy, energy-dispersive X-ray spectrometry, and X-ray diffraction. The coating is composed of interconnected SnO2 nanoparticles of sizes between 1-6 nm. Typically, the coatings have a total thickness on the order of the constituent nanoparticle size.
C1 Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
RP Zettl, A (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
EM azettl@physics.berkeley.edu
RI Han, WQ/E-2818-2013; Zettl, Alex/O-4925-2016
OI Zettl, Alex/0000-0001-6330-136X
NR 22
TC 277
Z9 282
U1 7
U2 88
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD MAY
PY 2003
VL 3
IS 5
BP 681
EP 683
DI 10.1021/nl034142d
PG 3
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
   Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
   Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
   Physics
GA 681MN
UT WOS:000183040100024
ER

PT J
AU McKnight, TE
   Melechko, AV
   Griffin, GD
   Guillorn, MA
   Merkulov, VI
   Serna, F
   Hensley, DK
   Doktycz, MJ
   Lowndes, DH
   Simpson, ML
AF McKnight, TE
   Melechko, AV
   Griffin, GD
   Guillorn, MA
   Merkulov, VI
   Serna, F
   Hensley, DK
   Doktycz, MJ
   Lowndes, DH
   Simpson, ML
TI Intracellular integration of synthetic nanostructures with viable cells
   for controlled biochemical manipulation
SO NANOTECHNOLOGY
LA English
DT Article
ID ALIGNED CARBON NANOFIBERS; DNA DELIVERY; NANOTUBES; PROBES; GENE;
   GROWTH; ARRAYS
AB We demonstrate the integration of vertically aligned carbon nanofibre (VACNF) elements with the intracellular domains of viable cells for controlled biochemical manipulation. Deterministically synthesized VACNFs were modified with either adsorbed or covalently-linked plasmid DNA and were subsequently inserted into cells. Post insertion viability of the cells was demonstrated by continued proliferation of the interfaced cells and long-term (>22 day) expression of the introduced plasmid. Adsorbed plasmids were typically desorbed in the intracellular domain and segregated to progeny cells. Covalently bound plasmids remained tethered to nanofibres and were expressed in interfaced cells but were not partitioned into progeny, and gene expression ceased when the nanofibre was no longer retained. This provides a method for achieving a genetic modification that is non-inheritable and whose extent in time can be directly and precisely controlled. These results demonstrate the potential of VACNF arrays as an intracellular interface for monitoring and controlling subcellular and molecular phenomena within viable cells for applications including biosensors, in vivo diagnostics, and in vivo logic devices.
C1 Oak Ridge Natl Lab, Mol Scale Engn & Nanoscale Technol Res Grp, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Elect & Comp Engn, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Div Life Sci, Oak Ridge, TN 37831 USA.
   Oak Ridge Natl Lab, Condensed Matter Sci Div, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA.
RP McKnight, TE (reprint author), Oak Ridge Natl Lab, Mol Scale Engn & Nanoscale Technol Res Grp, Oak Ridge, TN 37831 USA.
RI Melechko, Anatoli/B-8820-2008; Doktycz, Mitchel/A-7499-2011; Simpson,
   Michael/A-8410-2011; McKnight, Tim/H-3087-2011; Hensley,
   Dale/A-6282-2016
OI Doktycz, Mitchel/0000-0003-4856-8343; Simpson,
   Michael/0000-0002-3933-3457; McKnight, Tim/0000-0003-4326-9117; Hensley,
   Dale/0000-0001-8763-7765
NR 28
TC 110
Z9 113
U1 0
U2 9
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD MAY
PY 2003
VL 14
IS 5
BP 551
EP 556
AR PII S0957-4484(03)58037-0
DI 10.1088/0957-4484/14/5/313
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
   Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 688CC
UT WOS:000183414000014
ER

PT J
AU Liu, YF
   Hong, X
   Kappler, J
   Jiang, L
   Zhang, RG
   Xu, LG
   Pan, CH
   Martin, WE
   Murphy, RC
   Shu, HB
   Dai, SD
   Zhang, GY
AF Liu, YF
   Hong, X
   Kappler, J
   Jiang, L
   Zhang, RG
   Xu, LG
   Pan, CH
   Martin, WE
   Murphy, RC
   Shu, HB
   Dai, SD
   Zhang, GY
TI Ligand-receptor binding revealed by the TNF family member TALL-1
SO NATURE
LA English
DT Article
ID TUMOR-NECROSIS-FACTOR; B-CELL MATURATION; CRYSTAL-STRUCTURE;
   AUTOIMMUNE-DISEASE; LYMPHOCYTE STIMULATOR; BAFF; TACI; BLYS; APRIL; BCMA
AB The tumour necrosis factor (TNF) ligand TALL-1 and its cognate receptors, BCMA, TACI and BAFF-R, were recently identified as members of the TNF superfamily, which are essential factors contributing to B-cell maturation. The functional, soluble fragment of TALL-1 (sTALL-1) forms a virus-like assembly for its proper function. Here we determine the crystal structures of sTALL-1 complexed with the extracellular domains of BCMA and BAFF-R at 2.6 and 2.5 Angstrom, respectively. The single cysteine-rich domain of BCMA and BAFF-R both have saddle-like architectures, which sit on the horseback-like surface formed by four coil regions on each individual sTALL-1 monomer. Three novel structural modules, D2, X2 and N, were revealed from the current structures. Sequence alignments, structural modelling and mutagenesis revealed that one disulphide bridge in BAFF-R is critical for determining the binding specificity of the extracellular domain eBAFF-R to TALL-1 instead of APRIL, a closely related ligand of TALL-1, which was confirmed by binding experiments in vitro.
C1 Univ Colorado, Hlth Sci Ctr, Sch Med, Natl Jewish Med & Res Ctr,Integrated Dept Immunol, Denver, CO 80206 USA.
   Univ Colorado, Hlth Sci Ctr, Sch Med, Howard Hughes Med Inst, Denver, CO 80206 USA.
   Univ Colorado, Hlth Sci Ctr, Sch Med, Dept Pharmacol,Biomol Struct Program, Denver, CO 80206 USA.
   Peking Univ, Coll Life Sci, Dept Cell Biol & Genet, Beijing 100871, Peoples R China.
   Argonne Natl Lab, Struct Biol Sect, Argonne, IL 60439 USA.
RP Zhang, GY (reprint author), Univ Colorado, Hlth Sci Ctr, Sch Med, Natl Jewish Med & Res Ctr,Integrated Dept Immunol, 1400 Jackson St, Denver, CO 80206 USA.
NR 45
TC 81
Z9 86
U1 0
U2 15
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
J9 NATURE
JI Nature
PD MAY 1
PY 2003
VL 423
IS 6935
BP 49
EP 56
DI 10.1038/nature01543
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 673CG
UT WOS:000182561600034
PM 12721620
ER

PT J
AU Souma, S
   Machida, Y
   Sato, T
   Takahashi, T
   Matsui, H
   Wang, SC
   Ding, H
   Kaminski, A
   Campuzano, JC
   Sasaki, S
   Kadowaki, K
AF Souma, S
   Machida, Y
   Sato, T
   Takahashi, T
   Matsui, H
   Wang, SC
   Ding, H
   Kaminski, A
   Campuzano, JC
   Sasaki, S
   Kadowaki, K
TI The origin of multiple superconducting gaps in MgB2
SO NATURE
LA English
DT Article
ID POINT-CONTACT SPECTROSCOPY; ART. NO. 157002; PHOTOEMISSION SPECTROSCOPY;
   BI2SR2CACU2O8; BORON
AB Magnesium diboride, MgB2, has the highest transition temperature (T-c = 39 K) of the known metallic superconductors(1). Whether the anomalously high T-c can be described within the conventional BCS (Bardeen-Cooper-Schrieffer) framework 2 has been debated. The key to understanding superconductivity lies with the 'superconducting energy gap' associated with the formation of the superconducting pairs. Recently, the existence of two kinds of superconducting gaps in MgB2 has been suggested by several experiments(3-9); this is in contrast to both conventional and high-T-c superconductors. A clear demonstration of two gaps has not yet been made because the previous experiments lacked the ability to resolve the momentum of the superconducting electrons. Here we report direct experimental evidence for the two-band superconductivity in MgB2, by separately observing the superconducting gaps of the sigma and pi bands (as well as a surface band). The gaps have distinctly different sizes, which unambiguously establishes MgB2 as a two-gap superconductor(10,11).
C1 Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan.
   Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan.
   Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Univ Illinois, Dept Phys, Chicago, IL 60607 USA.
   Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan.
RP Takahashi, T (reprint author), Tohoku Univ, Dept Phys, Sendai, Miyagi 9808578, Japan.
EM t.takahashi@arpes.phys.tohoku.ac.jp
RI Takahashi, Takashi/E-5080-2010; Sato, Takafumi/E-5094-2010; Tohoku,
   Arpes/A-4890-2010; souma, seigo/A-4858-2010; Wang, Shancai/F-6162-2013;
   Sasaki, Satoshi/F-7627-2014; 
OI Ding, Hong/0000-0003-4422-9248
NR 26
TC 163
Z9 168
U1 5
U2 34
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
EI 1476-4687
J9 NATURE
JI Nature
PD MAY 1
PY 2003
VL 423
IS 6935
BP 65
EP 67
DI 10.1038/nature01619
PG 3
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 673CG
UT WOS:000182561600038
PM 12721624
ER

PT J
AU Cai, ST
   Han, HJ
   Kohwi-Shigematsu, T
AF Cai, ST
   Han, HJ
   Kohwi-Shigematsu, T
TI Tissue-specific nuclear architecture and gene expession regulated by
   SATB1
SO NATURE GENETICS
LA English
DT Article
ID MATRIX-ATTACHMENT REGION; BINDING PROTEIN SATB1; BETA-GLOBIN LOCUS;
   CELL-SPECIFIC DEMETHYLATION; HISTONE H3 METHYLATION; C-MYC; CHAIN
   ENHANCER; IN-VIVO; CHROMATIN; DNA
AB Eukaryotic chromosomes are packaged in nuclei by many orders of folding. Little is known about how higher-order chromatin packaging might affect gene expression. SATB1 is a cell-type specific nuclear protein that recruits chromatin-remodeling factors and regulates numerous genes during thymocyte differentiation. Here we show that in thymocyte nuclei, SATB1 has a cage-like 'network' distribution circumscribing heterochromatin and selectively tethers specialized DNA sequences onto its network. This was shown by fluorescence in situ hybridization on wild-type and Satb1-null thymocytes using in vivo SATB1-bound sequences as probes. Many gene loci, including that of Myc and a brain-specific gene, are anchored by the SATB1 network at specific genomic sites, and this phenomenon is precisely correlated with proper regulation of distant genes. Histone-modification analyses across a gene-enriched genomic region of 70 kb showed that acetylation of histone H3 at Lys9 and Lys14 peaks at the SATB1-binding site and extends over a region of roughly 10 kb covering genes regulated by SATB1. By contrast, in Satb1-null thymocytes, this site is marked by methylation at H3 Lys9. We propose SATB1 as a new type of gene regulator with a novel nuclear architecture, providing sites for tissue-specific organization of DNA sequences and regulating region-specific histone modification.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
RP Kohwi-Shigematsu, T (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd 84-171, Berkeley, CA 94720 USA.
NR 50
TC 258
Z9 279
U1 0
U2 8
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 345 PARK AVE SOUTH, NEW YORK, NY 10010-1707 USA
SN 1061-4036
J9 NAT GENET
JI Nature Genet.
PD MAY
PY 2003
VL 34
IS 1
BP 42
EP 51
DI 10.1038/ng1146
PG 10
WC Genetics & Heredity
SC Genetics & Heredity
GA 674ZK
UT WOS:000182667900015
PM 12692553
ER

PT J
AU Paunesku, T
   Rajh, T
   Wiederrecht, G
   Maser, J
   Vogt, S
   Stojicevic, N
   Protic, M
   Lai, B
   Oryhon, J
   Thurnauer, M
   Woloschak, G
AF Paunesku, T
   Rajh, T
   Wiederrecht, G
   Maser, J
   Vogt, S
   Stojicevic, N
   Protic, M
   Lai, B
   Oryhon, J
   Thurnauer, M
   Woloschak, G
TI Biology of TiO2-oligonucleotide nanocomposites
SO NATURE MATERIALS
LA English
DT Article
ID NANOCRYSTALLINE TIO2; SURFACE MODIFICATION; NANOPARTICLE PROBES; CHARGE
   SEPARATION; DNA; COLLOIDS; AGENTS
C1 Northwestern Univ, Dept Radiol, Chicago, IL 60611 USA.
   Argonne Natl Lab, Biosci Div, Argonne, IL 60439 USA.
   Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
   Argonne Natl Lab, Div Expt Facilities, 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
FU NCI NIH HHS [CA73042, CA81375]; NINDS NIH HHS [NS21442]
NR 24
TC 211
Z9 219
U1 6
U2 77
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1476-1122
J9 NAT MATER
JI Nat. Mater.
PD MAY
PY 2003
VL 2
IS 5
BP 343
EP 346
DI 10.1038/nmat875
PG 4
WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics,
   Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 675EK
UT WOS:000182679900024
PM 12692534
ER

PT J
AU Campisi, J
AF Campisi, J
TI Cancer and ageing: Rival demons?
SO NATURE REVIEWS CANCER
LA English
DT Review
ID NORMAL HUMAN FIBROBLASTS; HUMAN-DIPLOID FIBROBLASTS; WERNER-SYNDROME
   PROTEIN; TUMOR-SUPPRESSOR GENES; REPLICATIVE SENESCENCE; CELLULAR
   SENESCENCE; BLOOMS-SYNDROME; DNA HELICASE; IN-VIVO; DAMAGE RESPONSE
AB Organisms with renewable tissues use a network of genetic pathways and cellular responses to prevent cancer. The main mammalian tumour-suppressor pathways evolved from ancient mechanisms that, in simple post-mitotic organisms, act predominantly to regulate embryogenesis or to protect the germline. The shift from developmental and/or germline maintenance in simple organisms to somatic maintenance in complex organisms might have evolved at a cost. Recent evidence indicates that some mammalian tumour-suppressor mechanisms contribute to ageing. How might this have happened, and what are its implications for our ability to control cancer and ageing?.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, Berkeley, CA 94720 USA.
   Buck Inst Age Res, Novato, CA 94945 USA.
RP Campisi, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Div Life Sci, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 141
TC 293
Z9 304
U1 3
U2 14
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 1474-175X
J9 NAT REV CANCER
JI Nat. Rev. Cancer
PD MAY
PY 2003
VL 3
IS 5
BP 339
EP 349
DI 10.1038/nrc1073
PG 11
WC Oncology
SC Oncology
GA 680YP
UT WOS:000183007900013
PM 12724732
ER

PT J
AU Kim, MH
   Cierpicki, T
   Derewenda, U
   Krowarsch, D
   Feng, YY
   Devedjiev, Y
   Dauter, Z
   Walsh, CA
   Otlewski, J
   Bushweller, JH
   Derewenda, ZS
AF Kim, MH
   Cierpicki, T
   Derewenda, U
   Krowarsch, D
   Feng, YY
   Devedjiev, Y
   Dauter, Z
   Walsh, CA
   Otlewski, J
   Bushweller, JH
   Derewenda, ZS
TI The DCX-domain tandems of doublecortin and doublecortin-like kinase
SO NATURE STRUCTURAL BIOLOGY
LA English
DT Article
ID MICROTUBULE-ASSOCIATED PROTEIN; MOLTEN GLOBULE; STRUCTURAL BASIS; PC
   MOTIF; NMR; MUTATIONS; HOMOLOGY; APOMYOGLOBIN; REPLACEMENT; RECOGNITION
AB The doublecortin-like domains (DCX), which typically occur in tandem, are novel microtubule-binding modules. DCX tandems are found in doublecortin, a 360-residue protein expressed in migrating neurons; the doublecortin-like kinase (DCLK); the product of the RP1 gene that is responsible for a form of inherited blindness; and several other proteins. Mutations in the gene encoding doublecortin cause lissencephaly in males and the 'double-cortex syndrome' in females. We here report a solution structure of the N-terminal DCX domain of human doublecortin and a 1.5 Angstrom resolution crystal structure of the equivalent domain from human DCLK. Both show a stable, ubiquitin-like tertiary fold with distinct structural similarities to GTPase-binding domains. We also show that the C-terminal DCX domains of both proteins are only partially folded. In functional assays, the N-terminal DCX domain of doublecortin binds only to assembled microtubules, whereas the C-terminal domain binds to both microtubules and unpolymerized tubulin.
C1 Univ Virginia, Dept Mol Physiol & Biol Phys, Charlottesville, VA 22908 USA.
   Univ Wroclaw, Inst Biochem & Mol Biol, PL-50137 Wroclaw, Poland.
   Beth Israel Deaconess Med Ctr, Dept Neurol, Div Neurogenet, Boston, MA 02115 USA.
   Brookhaven Natl Lab, Synchrotron Radiat Res Sect, Macromol Crystallog Lab, NCI, Upton, NY 11973 USA.
RP Bushweller, JH (reprint author), Univ Virginia, Dept Mol Physiol & Biol Phys, Charlottesville, VA 22908 USA.
RI Otlewski, Jacek/B-6340-2008
NR 55
TC 80
Z9 85
U1 0
U2 4
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 345 PARK AVE SOUTH, NEW YORK, NY 10010-1707 USA
SN 1072-8368
J9 NAT STRUCT BIOL
JI Nat. Struct. Biol.
PD MAY
PY 2003
VL 10
IS 5
BP 324
EP 333
DI 10.1038/nsb918
PG 10
WC Biochemistry & Molecular Biology; Biophysics; Cell Biology
SC Biochemistry & Molecular Biology; Biophysics; Cell Biology
GA 672RY
UT WOS:000182536300007
PM 12692530
ER

PT J
AU Sewards, TV
   Sewards, MA
AF Sewards, TV
   Sewards, MA
TI Fear and power-dominance motivation: proposed contributions of peptide
   hormones present in cerebrospinal fluid and plasma
SO NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
LA English
DT Review
DE cerebrospinal fluid; peptide hormone; power-dominance drive
ID CORTICOTROPIN-RELEASING-FACTOR; PHASEOLUS-VULGARIS-LEUKOAGGLUTININ;
   BETA-ENDORPHIN-IMMUNOREACTIVITY; RECEPTOR-LIKE IMMUNOREACTIVITY;
   POSTTRAUMATIC-STRESS-DISORDER; ANABOLIC-ANDROGENIC STEROIDS; CIRCADIAN
   LOCOMOTOR RHYTHMS; MESSENGER-RIBONUCLEIC-ACID; MEDIAL PREFRONTAL CORTEX;
   SYSTEMIC ANGIOTENSIN-II
AB We propose that fear and power-dominance drive motivation are generated by the presence of elevated plasma and cerebrospinal fluid (CSF) levels of certain peptide hormones. For the fear drive, the controlling hormone is corticotropin releasing factor, and we argue that elevated CSF and plasma levels of this peptide which occur as a result of fear-evoking and other stressful experiences in the recent past are detected and transduced into neuronal activities by neurons in the vicinity of the third ventricle, primarily in the periventricular and arcuate hypothalamic nuclei. For the power-dominance drive, we propose that the primary signal is the CSF concentration of vasopressin, which is detected in two circumventricular organs, the subfornical organ and organum vasculosum of the lamina terminalis. We suggest that the peptide-generated signals detected in periventricular structures are transmitted to four areas in which neuronal activities represent fear and power-dominance: one in the medial hypothalamus, one in the dorsolateral quadrant of the periaqueductal gray matter, a third in the midline thalamic nuclei, and the fourth within medial prefrontal cortex. The probable purpose of this system is to maintain a state of fear or anger and consequent vigilant or aggressive behavior after the initial fear- or anger-inducing stimulus is no longer perceptible. We further propose that all the motivational drives, including thirst, hunger and sexual desire are generated in part by non-steroidal hormonal signals, and that the unstimulated motivational status of an individual is determined by the relative CSF and plasma levels of several peptide hormones. (C) 2003 Elsevier Science Ltd. All rights reserved.
C1 Sandia Res Ctr, Placitas, NM 87043 USA.
RP Sewards, TV (reprint author), Sandia Res Ctr, 21 Perdiz Canyon Rd, Placitas, NM 87043 USA.
NR 237
TC 15
Z9 16
U1 0
U2 3
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0149-7634
J9 NEUROSCI BIOBEHAV R
JI Neurosci. Biobehav. Rev.
PD MAY
PY 2003
VL 27
IS 3
BP 247
EP 267
DI 10.1016/S0149-7634(03)00034-4
PG 21
WC Behavioral Sciences; Neurosciences
SC Behavioral Sciences; Neurosciences & Neurology
GA 687JV
UT WOS:000183373900005
PM 12788336
ER

PT J
AU Hueckstaedt, RM
AF Hueckstaedt, RM
TI Nonlinear thin shell instabilities in molecular clouds
SO NEW ASTRONOMY
LA English
DT Article
DE hydrodynamics; instabilities; ISM : structure
ID PARTIAL-DIFFERENTIAL EQUATIONS; H I CLOUDS; STAR-FORMATION; COLLISIONS;
   SHOCKS; FLOWS; SOFTWARE; MUDPACK; MODEL
AB Observations of molecular clouds point to the existence of supersonic, turbulent flows. Therefore, any theory which attempts to describe molecular cloud evolution and star formation must include a consideration of the dynamics of colliding flows. Previous studies have considered the collision of supersonic streams or clouds. The resultant instabilities provide a mechanism which may give rise to observable cloud morphologies and enhance the star formation rate. One such instability is the nonlinear thin shell instability (NTSI) of a shock-bounded slab. This process is driven by ram pressure and efficient cooling. In this study, I use numerical simulations to examine the head-on collision of supersonic gas streams in a cold, molecular gas. A dense slab forms in the collision midplane and is prone to a number of instabilities, including the NTSI. The thermodynamic processes involved are found to have a controlling influence upon the instability and fragmentation of the slab. Although some minimal amount of cooling is needed to drive the instability, too rapid a cooling rate gives rise to smaller wavelength instabilities which wipe out the NTSI. The growth rate of the NTSI in a gas undergoing molecular cooling corresponds to a timescale of order 10(12) s, in general agreement with the theoretical value for an isothermal gas. The NTSI may provide a viable mechanism for the instigation of rapid star formation. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Appl Phys, Los Alamos, NM 87545 USA.
RP Hueckstaedt, RM (reprint author), Los Alamos Natl Lab, Div Appl Phys, Los Alamos, NM 87545 USA.
NR 29
TC 14
Z9 14
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1384-1092
J9 NEW ASTRON
JI New Astron.
PD MAY
PY 2003
VL 8
IS 4
BP 295
EP 311
DI 10.1016/S1384-1076(02)00222-1
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 660KU
UT WOS:000181833000003
ER

PT J
AU Johnson, GE
   Ebberts, BD
   Dauble, DD
   Giorgi, AE
   Heisey, PG
   Mueller, RP
   Neitzel, DA
AF Johnson, GE
   Ebberts, BD
   Dauble, DD
   Giorgi, AE
   Heisey, PG
   Mueller, RP
   Neitzel, DA
TI Effects of jet entry at high-flow outfalls on juvenile Pacific salmon
SO NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
LA English
DT Article
ID PREDATION
AB We conducted field studies and laboratory experiments to explore the relationship between direct injury and mortality rates of juvenile Pacific salmon Oncorhyncus spp. and the jet entry velocities characteristic of high-flow (>28.3 m(3)/s) outfalls at hydroelectric facilities. During field tests, the range of calculated mean entry velocities was 9.3-13.7 m/s for low (28.3 m(3)/s) and high (68.0-70.2 m(3)/s) outfall discharge rates and two receiving water elevations. Mortality and injury rates of balloon-tagged hatchery juvenile spring chinook salmon O. tshawytscha in the field tests were less than 1%. At a high-velocity flume in a laboratory, small (87-100 mm fork length [FL]) and large (135-150 mm FL) hatchery fall chinook salmon were exposed to velocities of 0.0-24.4 m/s in a fast-fish-to-slow-water scenario. Jet entry velocities up to 15.2 m/s provided benign passage conditions for the sizes and physiological states of juvenile salmonids tested under the particular environmental conditions present during this study. Our results of direct injury and mortality indicate that a jet entry velocity up to 15.2 m/s should safely pass juvenile salmon at high-flow outfalls. It will be necessary, however, to conduct site-specific, postconstruction verification studies of fish injury and mortality at new high-flow outfalls.
C1 Battelles Pacific NW Div, Portland, OR 97204 USA.
   US Army Corps Engineers, Portland, OR 97208 USA.
   Pacific NW Natl Lab, Richland, WA 99352 USA.
   Normandeau Associates Inc, Drumore, PA 17518 USA.
RP Johnson, GE (reprint author), Battelles Pacific NW Div, 620 SW 5th Ave,Suite 810, Portland, OR 97204 USA.
NR 20
TC 11
Z9 12
U1 0
U2 1
PU AMER FISHERIES SOC
PI BETHESDA
PA 5410 GROSVENOR LANE SUITE 110, BETHESDA, MD 20814-2199 USA
SN 0275-5947
J9 N AM J FISH MANAGE
JI North Am. J. Fish Manage.
PD MAY
PY 2003
VL 23
IS 2
BP 441
EP 449
DI 10.1577/1548-8675(2003)023<0441:EOJEAH>2.0.CO;2
PG 9
WC Fisheries
SC Fisheries
GA 686UG
UT WOS:000183338900009
ER

PT J
AU Mandrekas, J
   Colchin, RJ
   Stacey, WM
   Zhang, D
   Owen, LW
AF Mandrekas, J
   Colchin, RJ
   Stacey, WM
   Zhang, D
   Owen, LW
TI Neutral transport analysis of recent DIII-D neutral density experiments
SO NUCLEAR FUSION
LA English
DT Article
ID PARTICLE-TRANSPORT; D TOKAMAK; DIVERTOR; PLASMAS; EDGE; MODEL
AB Recent measurements of the neutral densities both inside and outside the separatrix near the X-point of the DIII-D tokamak, in both L- and H-mode plasmas, are analysed with the two-dimensional transmission/escape probability neutral transport code GTNEUT and with the two-dimensional Monte Carlo code DEGAS. The predictions of the two codes are in good agreement with each other and agree with the experiment to within the experimental error bars in most cases.
C1 Georgia Inst Technol, Atlanta, GA 30332 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Mandrekas, J (reprint author), Georgia Inst Technol, Atlanta, GA 30332 USA.
NR 18
TC 6
Z9 6
U1 0
U2 0
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD MAY
PY 2003
VL 43
IS 5
BP 314
EP 320
AR PII S0029-5515(03)61219-6
DI 10.1088/0029-5515/43/5/303
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 689VK
UT WOS:000183513500003
ER

PT J
AU Luce, TC
   Wade, MR
   Ferron, JR
   Hyatt, AW
   Kellman, AG
   Kinsey, JE
   La Haye, RJ
   Lasnier, CJ
   Murakami, M
   Politzer, PA
   Scoville, JT
AF Luce, TC
   Wade, MR
   Ferron, JR
   Hyatt, AW
   Kellman, AG
   Kinsey, JE
   La Haye, RJ
   Lasnier, CJ
   Murakami, M
   Politzer, PA
   Scoville, JT
TI Stationary high-performance discharges in the DIII-D tokamak
SO NUCLEAR FUSION
LA English
DT Article
ID TEARING MODE; PLASMAS; BETA; TRANSPORT; CONFINEMENT; STABILITY; HEAT
AB Discharges which can satisfy the high gain goals of burning plasma experiments have been demonstrated in the DIII-D tokamak under stationary conditions at relatively low plasma current (q(95) > 4). A figure of merit for fusion gain (beta(N)H(89)/q(95)(2)) has been maintained at values corresponding to Q = 10 operation in a burning plasma for > 6 s or 36tau(E) and 2-tau(R). The key element is the relaxation of the current profile to a stationary state with q(min) > 1. In the absence of sawteeth and fishbones, stable operation has been achieved up to the estimated no-wall P limit. Feedback control of the energy content and particle inventory allow reproducible, stationary operation. The particle inventory is controlled by gas fuelling and active pumping; the wall plays only a small role in the particle balance. The reduced current lessens significantly the potential for structural damage in the event of a major disruption. In addition, the pulse length capability is greatly increased, which is essential for a technology testing phase of a burning plasma experiment where fluence (duty cycle) is important.
C1 Gen Atom Co, San Diego, CA 92186 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Lehigh Univ, Bethlehem, PA 18015 USA.
   Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Luce, TC (reprint author), Gen Atom Co, POB 85608, San Diego, CA 92186 USA.
EM luce@fusion.gat.com
NR 24
TC 73
Z9 73
U1 0
U2 0
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD MAY
PY 2003
VL 43
IS 5
BP 321
EP 329
AR PII S0029-5515(03)61218-4
DI 10.1088/0029-5515/43/5/304
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 689VK
UT WOS:000183513500004
ER

PT J
AU Menard, JE
   Bell, MG
   Bell, RE
   Fredrickson, ED
   Gates, DA
   Kaye, SM
   LeBlanc, BP
   Maingi, R
   Mueller, D
   Sabbagh, SA
   Stutman, D
   Bush, CE
   Johnson, DW
   Kaita, R
   Kugel, HW
   Maqueda, RJ
   Paoletti, F
   Paul, SF
   Ono, M
   Peng, YKM
   Skinner, CH
   Synakowski, EJ
AF Menard, JE
   Bell, MG
   Bell, RE
   Fredrickson, ED
   Gates, DA
   Kaye, SM
   LeBlanc, BP
   Maingi, R
   Mueller, D
   Sabbagh, SA
   Stutman, D
   Bush, CE
   Johnson, DW
   Kaita, R
   Kugel, HW
   Maqueda, RJ
   Paoletti, F
   Paul, SF
   Ono, M
   Peng, YKM
   Skinner, CH
   Synakowski, EJ
CA NSTX Res Team
TI beta-limiting MHD instabilities in improved-performance NSTX spherical
   torus plasmas
SO NUCLEAR FUSION
LA English
DT Article
ID DIII-D; STABILITY BOUNDARIES; TOKAMAK PLASMAS; PHYSICS; STABILIZATION;
   IMPACT; MODES; POWER
AB Global magnetohydrodynamic (MHD) stability limits in the National Spherical Torus Experiment (NSTX) have increased significantly recently due to a combination of device and operational improvements. First, more routine H-mode operation with broadened pressure profiles allows access to higher normalized beta and lower internal inductance. Second, the correction of a poloidal field coil induced error-field has largely eliminated locked tearing modes during normal operation and increased the maximum achievable beta. As a result of these improvements, peak P values have reached (not simultaneously) beta(T) = 35%, beta(N) = 6.4, <beta(N)> = 4.5, beta(N)/l(i) = 10, and beta(P) = 1.4. High Pp operation with reduced tearing activity has allowed a doubling of discharge pulse-length to just over 1 s with sustained periods of beta(N) approximate to 6 above the ideal no-wall limit and near the with-wall limit. Details of the beta-limit scalings and beta-limiting instabilities in various operating regimes are described.
C1 Princeton Plasma Phys Lab, Princeton, NJ 08543 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN USA.
   Columbia Univ, New York, NY USA.
   Johns Hopkins Univ, Baltimore, MD USA.
   Los Alamos Natl Lab, Los Alamos, NM USA.
RP Menard, JE (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA.
RI Sabbagh, Steven/C-7142-2011; Stutman, Dan/P-4048-2015; 
OI Menard, Jonathan/0000-0003-1292-3286
NR 37
TC 59
Z9 59
U1 0
U2 5
PU INT ATOMIC ENERGY AGENCY
PI VIENNA
PA WAGRAMERSTRASSE 5, PO BOX 100, A-1400 VIENNA, AUSTRIA
SN 0029-5515
J9 NUCL FUSION
JI Nucl. Fusion
PD MAY
PY 2003
VL 43
IS 5
BP 330
EP 340
AR PII S0029-5515(03)61249-4
DI 10.1088/0029-5515/43/5/305
PG 11
WC Physics, Fluids & Plasmas
SC Physics
GA 689VK
UT WOS:000183513500005
ER

PT J
AU Ozaki, S
   Palmer, RB
   Zisman, MS
AF Ozaki, S
   Palmer, RB
   Zisman, MS
TI US neutrino factory studies
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino; muon
AB The design and simulated performance of a second feasibility study are presented. The efficiency of producing muons is approximate to 0.17 mu/p with 24 GeV protons. This study was sponsored by the BNL Director, with BNL site specific driver and layout. It was a follow on to the First Study (http://www.fnal.gov/projects/muon-collider/nu-factory/fer-mi(-)study(-)after(-)april1st/) sponsored by the Fermilab Director, with Fermilab site specific driver and layout, and was the main US collaboration conceptual effort during the past year. Other studies, and technical work by the collaboration is reported in other papers. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 BNL, Upton, NY 11973 USA.
   LBNL, Berkeley, CA 94720 USA.
RP Ozaki, S (reprint author), BNL, Upton, NY 11973 USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 20
EP 25
DI 10.1016/S0168-9002(03)00636-3
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200005
ER

PT J
AU Albright, CH
AF Albright, CH
TI GUT implications from neutrino mass
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE GUT models; neutrino oscillations
ID GRAND UNIFIED MODEL; OSCILLATIONS; SYMMETRY; MATTER; HIGGS; LIGHT; SOLAR
AB An overview is given of the experimental neutrino mixing results and types of neutrino models proposed, with special attention to the general features of various GUT models involving intra-family symmetries and horizontal flavor symmetries. Many of the features are then illustrated by a specific SO(10) SUSY GUT model formulated by Barr and the author which can explain all four types of solar neutrino mixing solutions by various choices of the right-handed Majorana mass matrix. The quantitative nature of the model's large mixing angle solution is used to compare the reaches of a neutrino super-beam and a neutrino factory for determining the small U-e3 mixing matrix element. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Albright, CH (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
OI Albright, Carl/0000-0002-2252-6359
NR 23
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 47
EP 52
DI 10.1016/S0168-9002(03)00640-5
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200009
ER

PT J
AU Sessler, AM
AF Sessler, AM
TI Staging
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino factory muon accelerator
AB It is likely that a Neutrino Factory will be built in stages, both for physics and financial reasons. The physics that can be addressed, and the approximate costs, of each of four possible stages are presented. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Sessler, AM (reprint author), Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 62
EP 63
DI 10.1016/S0168-9002(03)00642-9
PG 2
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200011
ER

PT J
AU Geer, S
AF Geer, S
TI Muon cooling R&D
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE ionization cooling
AB International efforts are under way to design and test a muon ionization cooling channel. The present R&D program is described, and future plans outlined. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Geer, S (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM sgeer@fnal.gov
NR 10
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 64
EP 69
DI 10.1016/S0168-9002(03)00643-0
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200012
ER

PT J
AU Hassenein, A
   Bernadon, A
   Beshears, DL
   Brown, KA
   Cates, MC
   Fabich, A
   Fernow, RC
   Finfrock, CC
   Fukui, Y
   Gabriel, TA
   Gassner, DM
   Green, MA
   Greene, GA
   Haines, JR
   Johnson, CD
   Kahn, SA
   King, BJ
   Kirk, HG
   Lettry, J
   Lu, C
   Ludewig, H
   McDonald, KT
   Miller, JR
   Mokhov, NV
   Palmer, RB
   Pendzick, AF
   Prigl, R
   Ravn, H
   Reginato, LL
   Riemer, BW
   Samulyak, R
   Scaduto, J
   Simos, N
   Spampinato, PT
   Thieberger, P
   Tsai, CC
   Tsang, TYF
   Wang, H
   Weggel, RL
   Zeller, A
AF Hassenein, A
   Bernadon, A
   Beshears, DL
   Brown, KA
   Cates, MC
   Fabich, A
   Fernow, RC
   Finfrock, CC
   Fukui, Y
   Gabriel, TA
   Gassner, DM
   Green, MA
   Greene, GA
   Haines, JR
   Johnson, CD
   Kahn, SA
   King, BJ
   Kirk, HG
   Lettry, J
   Lu, C
   Ludewig, H
   McDonald, KT
   Miller, JR
   Mokhov, NV
   Palmer, RB
   Pendzick, AF
   Prigl, R
   Ravn, H
   Reginato, LL
   Riemer, BW
   Samulyak, R
   Scaduto, J
   Simos, N
   Spampinato, PT
   Thieberger, P
   Tsai, CC
   Tsang, TYF
   Wang, H
   Weggel, RL
   Zeller, A
TI An R&D program for targetry and capture at a neutrino factory and muon
   collider source
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE target; neutrino factory; muon collider
AB The need for intense muon beams for muon colliders and for neutrino factories based on muon storage rings leads to a concept of 1-4 MW proton beams incident on a moving target that is inside a 20-T solenoid magnet, with a mercury jet as a preferred example. Novel technical issues for such a system include disruption of the mercury jet by the proton beam and distortion of the jet on entering the solenoid, as well as more conventional issues of materials lifetime and handling of activated materials in an intense radiation environment. As part of the R&D program of the Neutrino Factory and Muon Collider Collaboration, an R&D effort related to targetry is being performed within the context of experiment E951 at Brookhaven National Laboratory, first results of which are reported here. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Princeton Univ, Princeton, NJ 08544 USA.
   Argonne Natl Lab, Argonne, IL 60439 USA.
   CERN, Geneva, Switzerland.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Brookhaven Natl Lab, Upton, NY 11973 USA.
   Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
   Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
   Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Michigan State Univ, E Lansing, MI 48824 USA.
RP McDonald, KT (reprint author), Princeton Univ, Princeton, NJ 08544 USA.
OI Riemer, Bernard/0000-0002-6922-3056
NR 38
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 70
EP 77
DI 10.1016/S0168-9002(03)00644-2
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200013
ER

PT J
AU Buckley-Geer, E
AF Buckley-Geer, E
TI Status of the MINOS experiment
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino oscillations
ID NEUTRINOS
AB We report on the status of the MINOS long baseline neutrino experiment presently under construction at the Fermi National Accelerator Laboratory and the Soudan mine. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Buckley-Geer, E (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
EM buckley@fnal.gov
NR 5
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 122
EP 123
DI 10.1016/S0168-9002(03)00652-1
PG 2
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200021
ER

PT J
AU Morfin, JG
AF Morfin, JG
TI Summary WG2 Part 1a: using neutrinos to study partons in the nucleon and
   the nucleus at the neutrino factory
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
AB A neutrino deep-inelastic scattering experiment at a neutrino factory is described. The improvements possible in extracting parton distribution functions both within the nucleon and the nuclear environment are shown. The intriguing possibility of using (anti)neutrino scattering off a polarized target to determine the individual partonic spin contributions to the nucleon is discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Morfin, JG (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 234
EP 239
DI 10.1016/S0168-9002(03)00683-1
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200052
ER

PT J
AU Johnstone, C
AF Johnstone, C
TI Recent studies of FFAGs in the USA
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino factory; nonscaling FFAG; muon acceleration
AB Muon acceleration is one of the most difficult stages to develop for a Neutrino Factory or Muon Collider. The large transverse and longitudinal admittances which must be designed into the system and the rapidity with which acceleration must take place because of muon decay preclude the use of conventional synchrotron design. The current baseline is a recirculating linac (RLA) in the shape of a racetrack with separate fixed-field arcs for each acceleration turn. However, RLAs have proved costly and are a potential bottleneck, at least with respect to the storage ring. Therefore, another approach, the fixed-field alternating gradient (FFAG) accelerator, is being actively pursued. This paper discusses the FFAG option and progress. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Johnstone, C (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 11
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 301
EP 305
DI 10.1016/S0168-9002(03)00702-2
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200071
ER

PT J
AU Bogacz, SA
   Lebedev, VA
AF Bogacz, SA
   Lebedev, VA
TI Recirculating linac muon accelerator for neutrino factory
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE muon acceleration; beam dynamics
AB A conceptual design of a muon acceleration scheme based on recirculating superconducting linacs is proposed. In the presented scenario, acceleration starts after ionization cooling at 2 10 MeV/c and proceeds to 20 GeV, where the beam is injected into a neutrino factory storage ring. The key technical issues are addressed, such as the choice of acceleration technology (superconducting versus normal conducting) and the choice of RF frequency, and finally, implementation of the overall acceleration scheme: capture, acceleration, transport and preservation of large phase space of fast decaying species. Beam transport issues for large-momentum-spread beams are accommodated by appropriate lattice design choices. The proposed arc optics is further optimized with a sextupole correction to suppress chromatic effects contributing to emittance dilution. The presented proof-of-principle design of the arc optics with horizontal separation of multipass beams is extended for all passes. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Jefferson Lab, Beam Phys Dept, Newport News, VA 23606 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Bogacz, SA (reprint author), Jefferson Lab, Beam Phys Dept, Newport News, VA 23606 USA.
NR 3
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 306
EP 308
DI 10.1016/S0168-9002(03)00703-4
PG 3
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200072
ER

PT J
AU Zisman, MS
AF Zisman, MS
TI Technical design aspects of Feasibility Study-II
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino; factory; muon; storage ring
AB Feasibility Study-II examined a high-performance Neutrino Factory providing 1 x 10(20) neutrinos per year aimed at a long-baseline detector. The Study was sponsored jointly by BNL and the Neutrino Factory and Muon Collider Collaboration and is based on a 1 MW proton driver operating at 24 GeV, i.e., an upgraded version of the AGS accelerator. Compared with the earlier FNAL-sponsored study (Feasibility Study-I), there is a sixfold improvement in performance. Here we describe details of the implementation of Study-II concepts and discuss their efficacy. Alternative approaches that will be pursued in follow-on R&D activities are also described briefly. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Berkeley Natl Lab, Ctr Beam Phys, Div Accelerator & Fus Res, Berkeley, CA 94720 USA.
RP Zisman, MS (reprint author), Lawrence Berkeley Natl Lab, Ctr Beam Phys, Div Accelerator & Fus Res, Berkeley, CA 94720 USA.
NR 11
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 384
EP 389
DI 10.1016/S0168-9002(03)00721-6
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200090
ER

PT J
AU Kaplan, DM
   Black, EL
   Boghosian, M
   Cassel, KW
   Johnson, RP
   Geer, S
   Johnstone, CJ
   Popovic, M
   Ishimoto, S
   Yoshimura, K
   Bandura, L
   Cummings, MA
   Dyshkant, A
   Hedin, D
   Kubik, D
   Darve, C
   Kuno, Y
   Errede, D
   Haney, M
   Majewski, S
   Reep, M
   Summers, D
AF Kaplan, DM
   Black, EL
   Boghosian, M
   Cassel, KW
   Johnson, RP
   Geer, S
   Johnstone, CJ
   Popovic, M
   Ishimoto, S
   Yoshimura, K
   Bandura, L
   Cummings, MA
   Dyshkant, A
   Hedin, D
   Kubik, D
   Darve, C
   Kuno, Y
   Errede, D
   Haney, M
   Majewski, S
   Reep, M
   Summers, D
TI Progress in absorber R&D for muon cooling
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE muon cooling; liquid hydrogen; neutrino factory
AB A stored-muon-beam neutrino factory may require transverse ionization cooling of the muon beam. We describe recent progress in research and development on energy absorbers for muon-beam cooling carried out by a collaboration of university and laboratory groups. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 IIT, Dept Phys, Chicago, IL 60616 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   KEK, Tsukuba, Ibaraki 3050801, Japan.
   No Illinois Univ, De Kalb, IL 60115 USA.
   Northwestern Univ, Evanston, IL USA.
   Osaka Univ, Osaka 5600043, Japan.
   Univ Illinois, Urbana, IL 61801 USA.
   Univ Mississippi, University, MS 38677 USA.
RP Kaplan, DM (reprint author), IIT, Dept Phys, 3301 S Dearborn, Chicago, IL 60616 USA.
EM kaplan@fnal.gov
OI Cassel, Kevin/0000-0003-0981-496X; Hedin, David/0000-0001-9984-215X
NR 18
TC 4
Z9 4
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 392
EP 395
DI 10.1016/S0168-9002(03)00723-X
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200092
ER

PT J
AU Ishimoto, S
   Bandura, L
   Black, EL
   Boghosian, M
   Cassel, KW
   Cummings, MA
   Darve, C
   Dyshkant, A
   Errede, D
   Geer, S
   Haney, M
   Hedin, D
   Johnson, R
   Johnstone, CJ
   Kaplan, DM
   Kubik, D
   Kuno, Y
   Majewski, S
   Popovic, M
   Reep, M
   Summers, D
   Suzuki, S
   Yoshimura, K
AF Ishimoto, S
   Bandura, L
   Black, EL
   Boghosian, M
   Cassel, KW
   Cummings, MA
   Darve, C
   Dyshkant, A
   Errede, D
   Geer, S
   Haney, M
   Hedin, D
   Johnson, R
   Johnstone, CJ
   Kaplan, DM
   Kubik, D
   Kuno, Y
   Majewski, S
   Popovic, M
   Reep, M
   Summers, D
   Suzuki, S
   Yoshimura, K
TI Convection-type LH2 absorber R&D for muon ionization cooling
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE muon cooling; liquid hydrogen; energy absorber; ionization loss;
   convection
AB A feasibility study on liquid hydrogen (LH2) absorbers for muon ionization cooling is reported. In muon ionization cooling, an LH2 absorber is required to have a high cooling power greater than 100 W to cool heat deposited by muons passing through. That heat in LH2 can be removed at either external or internal heat exchangers, which are cooled by cold helium gas. As one of the internal heat exchanger types, a convection-type absorber is proposed. In the convectiontype absorber, heat is taken away by the convection of LH2 in the absorber. The heat exchanger efficiency for the convection-type absorber is calculated. A possible design is presented. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 KEK, Tsukuba, Ibaraki, Japan.
   No Illinois Univ, De Kalb, IL 60115 USA.
   IIT, Chicago, IL 60616 USA.
   Northwestern Univ, Evanston, IL 60208 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Osaka Univ, Toyonaka, Osaka 560043, Japan.
   Univ Mississippi, University, MS 38677 USA.
RP Ishimoto, S (reprint author), KEK, 1-1 Oho, Tsukuba, Ibaraki, Japan.
EM shigeru.ishimoto@kek.jp; sgeer@fnal.gov; cjj@fermlab.gov;
   kaplan@fnal.gov; kuno@phys.sci.osaka-u.ac.jp; koji.yoshimura@kek.jp
OI Hedin, David/0000-0001-9984-215X; Cassel, Kevin/0000-0003-0981-496X
NR 6
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 396
EP 400
DI 10.1016/S0168-9002(03)00724-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200093
ER

PT J
AU Wang, CX
   Kim, KJ
AF Wang, CX
   Kim, KJ
TI Linear theory of transverse and longitudinal ionization cooling in a
   quadrupole channel
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE ionization cooling; muon collider; neutrino factory; emittance exchange;
   multiple scattering integrals; energy straggling integrals
AB Ionization cooling is the best-known cooling mechanism for the envisioned muon colliders and neutrino factories. In this paper, using the moment-equation approach, we present a linear theory of ionization cooling dynamics in 6D phase space in a quadrupole focusing channel. A simple set of differential equations that governs the evolution of both the transverse and longitudinal emittances is derived, and closed-form solutions are given. Two new significant heating processes have been identified. This theory is analogous to the standard linear theory in electron storage rings. Multiple scattering integrals and energy straggling integrals, quantities like the synchrotron radiation integrals, are introduced to specify the cooling process and the equilibrium emittances in a periodic cooling channel. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
   Univ Chicago, Chicago, IL 60637 USA.
RP Wang, CX (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM wangcx@aps.anl.gov
NR 9
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 401
EP 408
DI 10.1016/S0168-9002(03)00725-3
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200094
ER

PT J
AU Wang, CX
AF Wang, CX
TI Dispersion in a bent-solenoid channel
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE dispersion; bent-solenoid; emittance exchange; ionization cooling; muon
   collider
AB Longitudinal ionization cooling of a muon beam is essential for muon colliders and will be useful for neutrino factories. Bent-solenoid channels with symmetric focusing has been considered for beam focusing and for generating the required dispersion in the "emittance exchange" scheme of longitudinal cooling. In this paper, we derive the Hamiltonian that governs the linear beam dynamics of a bent-solenoid channel, solve the single-particle dynamics, and give equations for determining the lattice functions, in particular, the dispersion functions. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Argonne, IL 60439 USA.
RP Wang, CX (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM wangcx@aps.anl.gov
NR 7
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 409
EP 413
DI 10.1016/S0168-9002(03)00726-5
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200095
ER

PT J
AU Johnstone, C
   Garren, A
AF Johnstone, C
   Garren, A
TI Conventional 20-GeV muon storage rings for a neutrino factory
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
   SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 3rd International Workshop on Neutrino Factories Based on Muon Storage
   Rings
CY MAY 24-30, 2001
CL TSUKUBA, JAPAN
DE neutrino factory; muon storage ring
AB 20 and 50-GeV lattices have been designed for muon storage rings at Brookhaven National Laboratory (BNL) and Fermi National Accelerator Laboratory (FNAL), respectively. Only recent work on the 20-GeV ring will be discussed in detail here as the 50-GeV ring has been well documented (Fennilab-Pbu-00/108-E, 2000). The 20-GeV designs presented in this paper supplement the lattice developed at BNL for the Feasibility 11 Study of a Neutrino Factory (BNL-52623, June 2001). The principal difference between these designs is the use of an unconventional type of magnet in the Feasibility II Study design and of conventional magnets in the ones presented here. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Univ Calif Los Angeles, Los Angeles, CA USA.
RP Johnstone, C (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 2
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
   Equip.
PD MAY 1
PY 2003
VL 503
IS 1-2
BP 421
EP 424
DI 10.1016/S0168-9002(03)00729-0
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684WH
UT WOS:000183229200098
ER

PT J
AU Gao, F
   Weber, WJ
AF Gao, F
   Weber, WJ
TI Atomic simulation of ion-solid interaction in ceramics
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Annual Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MO
SP Amer Ceram Soc
DE ab initio calculations; molecular dynamics simulations; defect
   production; multiple ion-solid interaction; amorphization; SiC
ID IRRADIATION-INDUCED AMORPHIZATION; DISPLACEMENT CASCADES;
   MOLECULAR-DYNAMICS; SILICON-CARBIDE; DEFECT PRODUCTION;
   TEMPERATURE-DEPENDENCE; ANNEALING SIMULATION; NEUTRON-IRRADIATION; SCALE
   SIMULATION; DAMAGE
AB Understanding dynamic processes during ion irradiation, as well as irradiation-induced microstructural changes, requires fundamental knowledge on defect properties, defect generation in atomic collision processes, multiple ion-solid interactions and defect migration. The multiple scale simulation methods are presented in this paper, and in particular, an application on SiC is discussed in detail. Density functional theory (DFT) has been employed to determine defect energetics and the most favorable interstitial configurations in SiC. Based on DFT calculations, a new empirical potential has been developed in order to carry out large-scale simulations of microstructural evolution. Multimillion atom systems (up to 6 million) have been used to study defect production, defect clustering, multiple ion-solid interactions and structural evolution in SiC. The defect-stimulated growth and coalescence of clusters represents an important mechanism for irradiation-induced crystalline-to-amorphous transformation. The relative disordering and swelling behavior, as well as high-resolution transmission electron microscopy image simulations, based on molecular dynamics results, provide atomic-level interpretations of experimentally observed features in SiC. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Gao, F (reprint author), Pacific NW Natl Lab, MS K8-93,POB 999, Richland, WA 99352 USA.
EM fei.gao@pnl.gov
RI Weber, William/A-4177-2008; Gao, Fei/H-3045-2012
OI Weber, William/0000-0002-9017-7365; 
NR 51
TC 8
Z9 9
U1 0
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 10
EP 20
DI 10.1016/S0168-583X(03)00515-9
PG 11
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800003
ER

PT J
AU Meldrum, A
   Boatner, LA
   Ewing, RC
AF Meldrum, A
   Boatner, LA
   Ewing, RC
TI Size effects in the irradiation-induced crystalline-to-amorphous
   transformation
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Annual Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MO
SP Amer Ceram Soc
DE nanocrystals; amorphization; ZrO2; irradiation; zirconia
ID INDUCED AMORPHIZATION; PARTICLE IRRADIATION; PHASE-TRANSITION; ZIRCONIA;
   NANOCRYSTALS; IMPLANTATION; ENERGIES; OXIDES
AB Due to their unique properties, nanocrystalline composites are currently finding applications in high-radiation environments. By using zirconia (ZrO2) as an example, we show that at the smallest particle sizes, radiation damage effects can be strongly enhanced, and that under certain conditions, materials that are generally considered to be radiation resistant can become susceptible to irradiation-induced amorphization. Bulk zirconia has previously been irradiated to 680 dpa with no evidence of amorphization; however, we find that nanocrystalline zirconia can be amorphized at a dose as low as 0.9 dpa due, in part, to the energetics of the increased surface-to-volume ratio. These results have implications for the design of nanocomposite materials for use in space vehicles and in other high-radiation environments. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
   Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA.
RP Meldrum, A (reprint author), Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
EM ameldrum@ualberta.ca
RI Boatner, Lynn/I-6428-2013
OI Boatner, Lynn/0000-0002-0235-7594
NR 23
TC 27
Z9 28
U1 0
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 28
EP 35
DI 10.1016/S0168-583X(03)00519-6
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800005
ER

PT J
AU Meldrum, A
   Boatner, LA
   Sorge, K
AF Meldrum, A
   Boatner, LA
   Sorge, K
TI Microstructure and magnetic properties of Co nanoparticles in
   ion-implanted Al2O3
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MISSOURI
SP American Ceramic Soc
DE nanocrystals; microstructure; ion implantation; Co; Al2O3; magnetic
ID NANOCRYSTALS; PARTICLES; SILICON; FILMS; FE
AB Ion implantation and thermal processing can be used to create a variety of single-element or compound ferromagnetic nanocrystals embedded in dielectric host materials. This approach leads to the formation of nanocomposites with several attractive characteristics for potential applications in magnetic data storage media. A number of problems must be addressed before such applications can be realized in practice, however. One difficulty lies in the exercise of sufficiently fine control over the magnetic and microstructural properties of interest. Here, we show that Co nanocrystals produced by the ion implantation of Al2O3 can be formed either as spheroidal or well faceted single-crystal precipitates, depending on the synthesis conditions. Subsequent ion irradiation of the nanoparticles can alter the microstructure and internal chemistry of the particles as well as that of the host matrix, thereby providing a means of increasing the coercive field of the Co nanoparticles by almost two orders of magnitude. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
   Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA.
RP Meldrum, A (reprint author), Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
RI Boatner, Lynn/I-6428-2013
OI Boatner, Lynn/0000-0002-0235-7594
NR 19
TC 18
Z9 19
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 36
EP 44
DI 10.1016/S0168-583X(03)00520-2
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800006
ER

PT J
AU Alves, E
   Marques, C
   da Silva, RC
   Monteiro, T
   Soares, J
   McHargue, C
   Ononye, LC
   Allard, LF
AF Alves, E
   Marques, C
   da Silva, RC
   Monteiro, T
   Soares, J
   McHargue, C
   Ononye, LC
   Allard, LF
TI Structural and optical studies of Co and Ti implanted sapphire
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Annual Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MO
SP Amer Ceram Soc
DE nanoparticles; alpha-Al2O3; optical properties
ID ION-IMPLANTATION; AMORPHIZATION; ALPHA-AL2O3; DAMAGE; AL2O3
AB Single crystals of alpha-Al2O3 with different orientations were implanted with several fluences of Ti and Co ions. For low fluences both Ti and Co ions are fully incorporated in Al lattice sites and remain stable up to annealing temperatures of 1000 degreesC. For fluences of 5 x 10(16) cm(-2) the implanted region becomes completely disordered (amorphous) for samples implanted with Ti while for Co the same condition is achieved only for higher fluences (2 x 10(16) Co+/cm(2)). The recovery of the implantation damage is almost complete after annealing at 1000 degreesC in either oxidizing or reducing atmospheres for fluences below 5 x 10(16) cm(-2). For higher fluences annealing in a reducing ambient promotes the precipitation of crystalline metallic Co and Ti particles, as revealed by TEM and RBS. These precipitates retard the damage recovery. The presence of oxygen during annealing leads to the formation of mixed Co and Al oxides through the entire implanted region. Annealing at 1000 degreesC promotes the formation of a spinel phase (Al2CoO4) and the blue or green coloration of sapphire, depending on the Co fluence. Moreover, narrow red emission lines were observed. For Ti the oxides concentrate at the surface and optical absorption measurements show the presence of a broad absorption band centered at 325 nm. This band is absent in the samples annealed in a reducing atmosphere. Photoluminescence measurements reveal the presence of an emission band centered near 840 nm. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Inst Tecnol & Nucl, Dep Fis, P-2686953 Sacavem, Portugal.
   Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal.
   Univ Tennessee, Ctr Mat Proc, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Alves, E (reprint author), Inst Tecnol & Nucl, Dep Fis, EN 10, P-2686953 Sacavem, Portugal.
EM ealves@itn1.itn.pt
RI Marques, Carlos/C-2241-2008; Monteiro, Teresa/B-7466-2012; Universidade
   Aveiro, Departamento Fisica/E-4128-2013; Soares, Manuel/J-6537-2013;
   Alves, Eduardo/K-2481-2013; 
OI da Silva, Rui/0000-0002-4442-891X; Monteiro, Teresa/0000-0001-6945-2759;
   Soares, Manuel/0000-0002-8059-7067; Alves, Eduardo/0000-0003-0633-8937;
   Soares, Jose/0000-0001-5277-4575; Marques, Carlos/0000-0001-5691-6569
NR 26
TC 9
Z9 9
U1 0
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 55
EP 62
DI 10.1016/S0168-583X(03)00522-6
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800008
ER

PT J
AU Gao, F
   Wang, CM
   Maheswaran, S
   Thevuthasan, S
AF Gao, F
   Wang, CM
   Maheswaran, S
   Thevuthasan, S
TI Atomic-level simulations of misfit dislocation at the interface of
   Fe2O3/Al2O3 system
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MISSOURI
SP American Ceramic Soc
DE epitaxy; computer simulation; misfit dislocation; interface
ID EPITAXIAL-GROWTH; ALPHA-FE2O3; ALPHA-AL2O3; FILMS; SURFACES; ENERGY; MBE
AB When alpha-Fe2O3 thin films are deposited on alpha-Al2O3(0 0 0 1) substrates using oxygen plasma assisted molecular beam epitaxy, a periodic distribution of basal dislocations occurs due to lattice mismatch along the interfaces. High-resolution transmission electron microscopy shows, when observed from (11(2) over bar 0) zone axis, that these dislocations lie at the interface about 7.0 nm apart. Molecular-dynamics simulations were performed in order to understand the formation of misfit dislocations and the interface structural features in Fe2O3/Al2O3 system. It is found that the misfit dislocations are mainly formed in Al2O3 substrates with Burger's vector of 1/3 (11(2) over bar 0), and terminated at the interfaces, in consistent with experiments observed previously. These dislocations can dissociate into two partial dislocations with Burger's vectors of 1/3(10(1) over bar 0) and 1/3(01(1) over bar 0) by forming stacking faults on (0 0 0 1) planes. The core structures of the misfit dislocations in semicoherent interfaces are analyzed in detail, and the misfit dislocations have narrow cores in the plane of the interfaces. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
   Univ Western Sydney, Sch Engn & Ind Design, Penrith, NSW 1797, Australia.
RP Gao, F (reprint author), Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999,MSIN K8-93, Richland, WA 99352 USA.
RI Gao, Fei/H-3045-2012
NR 22
TC 6
Z9 6
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 63
EP 71
DI 10.1016/S0168-583X(03)00523-8
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800009
ER

PT J
AU Felter, TE
   Hrubesh, L
   Kubota, A
   Davila, L
   Caturla, M
AF Felter, TE
   Hrubesh, L
   Kubota, A
   Davila, L
   Caturla, M
TI Laser damage probability studies of fused silica modified by MeV ion
   implantation
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MISSOURI
SP American Ceramic Soc
DE laser damage threshold; fused silica; ion implantation; MeV; xenon; high
   intensity ultra violet light; molecular dynamics; modification of
   materials by ion beams; radiation effects; initial compaction or
   densification; plastic deformation; Feuston and Garofalini potential
ID IRRADIATION; SIO2; STRESS
AB Energetic ions in the MeV regime have pronounced effects on the stress-state and geometry of fused silica. In particular, Polman and co-workers have shown that 4 MeV xenon ions cause substantial changes in thin films and microspheres of fused silica. For example, 2 mum wide trenches in thin films can be partially closed and microspheres substantially distorted. In our study, we investigate implantation into bulk silica and the subsequent response to high intensity ultra violet light. Specifically, we compare the damage threshold of fused silica to intense ultra violet light at 355 nm before and after room temperature ion bombardment and find little change despite clear alteration of the stress-state in the glass. We have also performed molecular dynamics simulations in order to understand the underlying effects that lead to obscuration of optics under laser and ion irradiation. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Felter, TE (reprint author), Lawrence Livermore Natl Lab, POB 5508, Livermore, CA 94551 USA.
RI Caturla, Maria /D-6241-2012
OI Caturla, Maria /0000-0002-4809-6553
NR 18
TC 11
Z9 11
U1 3
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 72
EP 79
DI 10.1016/S0168-583X(03)00524-X
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800010
ER

PT J
AU Jiang, W
   Weber, WJ
   Thevuthasan, S
   Boatner, LA
AF Jiang, W
   Weber, WJ
   Thevuthasan, S
   Boatner, LA
TI Effect of ion irradiation in cadmium niobate pyrochlores
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Annual Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MO
SP Amer Ceram Soc
DE ion irradiation; lattice disorder; ion cleaving; ion channeling;
   pyrochlores
ID RADIATION; ACCUMULATION; DAMAGE
AB Irradiation experiments have been performed for cadmium niobate (Cd(2)Nb(2)O(7)) pyrochlore single crystals at both 150 and 300 K using 1.0 MeV Au(2+) ions over fluences ranging from 0.01 to 0.10 ions/nm(2). In-situ 3.0 MeV He(+) Rutherford backscattering spectrometry along the (100)-axial channeling direction (RBS/C) has been applied to study the damage states ranging from small defect concentrations to a fully amorphous state. Results show that the crystal can be readily amorphized under the irradiation conditions. Room-temperature recovery of the defects produced at 150 K has been observed. while the defects produced at 300 K are thermally stable at room temperature. Results also indicate that the RBS/C analysis used in this study induced negligible damage in the near-surface regime. In addition, irradiation at and below room temperature using He(+) and C(3+) ions leads to surface exfoliation at the corresponding damage peaks. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Jiang, W (reprint author), Pacific NW Natl Lab, POB 999,MSIN K8-93, Richland, WA 99352 USA.
EM weilin.jiang@pnl.gov
RI Weber, William/A-4177-2008; Boatner, Lynn/I-6428-2013; 
OI Weber, William/0000-0002-9017-7365; Boatner, Lynn/0000-0002-0235-7594;
   Jiang, Weilin/0000-0001-8302-8313
NR 20
TC 5
Z9 6
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 85
EP 91
DI 10.1016/S0168-583X(03)00526-3
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800012
ER

PT J
AU Jiang, W
   Weber, WJ
   Zhang, Y
   Thevuthasan, S
   Shutthanandan, V
AF Jiang, W
   Weber, WJ
   Zhang, Y
   Thevuthasan, S
   Shutthanandan, V
TI Ion beam analysis of irradiation effects in 6H-SiC
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 104th Annual Meeting of the American-Ceramic-Society
CY APR 28-MAY 01, 2002
CL ST LOUIS, MO
SP Amer Ceram Soc
DE ion irradiation; disorder accumulation and recovery; ion channeling
   analysis; SiC
ID SILICON-CARBIDE; EPITAXIAL CRYSTALLIZATION; LOW-TEMPERATURE;
   AMORPHIZATION; IMPLANTATION; RECOVERY; DISORDER; RECRYSTALLIZATION;
   SUBLATTICES; DIFFUSION
AB Irradiation in 6H-SiC single crystal wafers has been performed at temperatures ranging from 150 to 550 K using 2.0 MeV An(2+) or at 300 K using 50 keV He+ ions. Additional irradiation for the He+-irradiated specimen was carried out near room temperature using 50 MeV I10+ ions to similar to0.1 ions/nm(2). In situ isothermal annealing for 6H-SiC irradiated at 500 K to 2.0 Au2+/nm(2) was also conducted up to 90 min at the irradiation temperature. The lattice disorder in the irradiated samples has been determined using either 2.0 MeV He+ or 0.94 MeV D+ channeling analysis along the (0001) axis. Results show that there is a substantial diffusion of the Si defects into a greater depth during the Au2+ irradiation at 500 and 550 K. Complete amorphization at 550 K does not occur up to a maximum fluence of 15 Au2+/nm(2) in this study. Significant thermal recovery of the Si defects produced at 150 K was not observed during the subsequent thermal annealing at 500 K. Following the I10+ irradiation in the He+-irradiated specimen near room temperature, remarkable recrystallization at the amorphous-crystalline interfaces around the damage profile is observed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
   Uppsala Univ, Angstrom Lab, SE-75121 Uppsala, Sweden.
RP Jiang, W (reprint author), Pacific NW Natl Lab, POB 999,MSIN K8-93, Richland, WA 99352 USA.
EM weilin.jiang@pnl.gov
RI Weber, William/A-4177-2008; 
OI Weber, William/0000-0002-9017-7365; Jiang, Weilin/0000-0001-8302-8313
NR 28
TC 18
Z9 19
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 207
IS 1
BP 92
EP 99
DI 10.1016/S0168-583X(03)00527-5
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684FY
UT WOS:000183195800013
ER

PT J
AU Weber, WJ
   Gao, F
   Jiang, W
   Zhang, Y
AF Weber, WJ
   Gao, F
   Jiang, W
   Zhang, Y
TI Fundamental nature of ion-solid interactions in SiC
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE silicon carbide; defects; amorphization; thermal recovery; computer
   simulations
ID IRRADIATION-INDUCED AMORPHIZATION; SILICON-CARBIDE; DEFECT PRODUCTION;
   SIMULATION; CERAMICS; ENERGY
AB Experimental and computer simulation studies have been used to study the fundamental nature of defect production and damage accumulation as a result of ion-solid interactions in SiC. Density functional theory calculations and molecular dynamics simulations have been used to determine stable defect configurations, defect production, and cascade-overlap effects. Defect configurations and damage accumulation have been determined experimentally by ion-channeling methods. Ion-solid interactions in SiC primarily produce interstitials, vacancies, antisite defects, and small defect clusters directly during the collision cascade. The accumulation of isolated point defects and defect clusters dominate damage accumulation processes at low doses. The growth and coalescence of defect clusters at higher doses lead to amorphization and swelling that exceeds 8%. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
   Angstrom Lab, Div Ion Phys, SE-75121 Uppsala, Sweden.
RP Pacific NW Natl Lab, POB 999,MSIN K8-93, Richland, WA 99352 USA.
EM bill.weber@pnl.gov
RI Weber, William/A-4177-2008; Gao, Fei/H-3045-2012; 
OI Weber, William/0000-0002-9017-7365; Jiang, Weilin/0000-0001-8302-8313
NR 27
TC 12
Z9 13
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 1
EP 6
DI 10.1016/S0168-583X(03)00680-3
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500002
ER

PT J
AU Papaleo, RM
   Leal, R
   Trautmann, C
   Bringa, EM
AF Papaleo, RM
   Leal, R
   Trautmann, C
   Bringa, EM
TI Cratering by MeV-GeV ions as a function of angle of incidence
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE ion tracks; cratering; sputtering; polymers; scanning force microscopy
ID SCANNING FORCE MICROSCOPY; BOMBARDMENT; DEPENDENCE; TRACK; MICA
AB We report on a systematic scanning force microscope study of crater formation induced by swift heavy ions as a function of angle of incidence. PMMA films were bombarded with Au-197 (20 MeV), Bi-209 (2320 MeV) and U-238 (2640 MeV) ions at angles 0 varying from 0degrees to 84degrees to the surface normal. In all cases, the length of the craters as well as rim height and length scale with (cos 0)(-1). Crater width showed a much weaker (cos 0)(-0.3) dependence. Similar angular dependences were observed for the different ion species and energies used. The experimental data is compared to molecular dynamics simulations of crater formation in a model solid. The simulations show a (cos 0)(-1) dependence for the crater length, but no dependence for the crater width, unless a wide initial track of excitation is used. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Catholic Univ Rio Grande Do Sul, Fac Phys, BR-90619900 Porto Alegre, RS, Brazil.
   Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany.
   Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Papaleo, RM (reprint author), Catholic Univ Rio Grande Do Sul, Fac Phys, Av Ipiranga 6681, BR-90619900 Porto Alegre, RS, Brazil.
RI Bringa, Eduardo/F-8918-2011; Papaleo, Ricardo/J-2617-2012; Trautmann,
   Christina/C-6623-2016
OI Papaleo, Ricardo/0000-0003-3726-8951; 
NR 16
TC 5
Z9 5
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 7
EP 12
DI 10.1016/S0168-583X(03)00683-9
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500003
ER

PT J
AU Mitsuishi, K
   Song, M
   Furuya, K
   Allen, CW
   Birtcher, RC
   Dahmen, U
AF Mitsuishi, K
   Song, M
   Furuya, K
   Allen, CW
   Birtcher, RC
   Dahmen, U
TI Effect of aspect ratio on phase changes of rare-gas precipitates in an
   Al matrix
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE HRTEM; precipitate Xe; Laplace pressure
ID IRRADIATION; ALUMINUM; BUBBLES
AB The effect of the shape on the pressure at constant particle volume is discussed for the anisotropic case of Xe inclusions and compared with experiments. The Laplace pressure of a faceted particle is calculated by equating the work expended by increasing the anisotropic surface energy with the work done by expanding the particle volume. Although the value of gamma(200)/gamma(111) for the Xe/Al interfaces is not known precisely, it is found that the pressure change with shape variation is sufficiently large even for minimum anisotropy to quantitatively account for observed differences in the state of Xe precipitates having the same volume, but different shapes, in Al. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Natl Inst Mat Sci, Tsukuba, Ibaraki 3050003, Japan.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Natl Ctr Electron Microscopy, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
RP Mitsuishi, K (reprint author), Natl Inst Mat Sci, 3-13 Sakura, Tsukuba, Ibaraki 3050003, Japan.
NR 7
TC 3
Z9 3
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 109
EP 113
DI 10.1016/S0168-583X(03)00694-3
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500024
ER

PT J
AU Ono, K
   Arakawa, K
   Birtcher, RC
AF Ono, K
   Arakawa, K
   Birtcher, RC
TI Intermittent rapid motion of helium bubbles in Cu during irradiation
   with high energy self-ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE helium bubble; radiation damage; copper; electron microscopy; ion
   irradiation; defects
ID IN-SITU OBSERVATION; RADIATION-DAMAGE; BROWNIAN-MOTION
AB The dynamical response of helium bubbles to irradiation with high energy self-ions in pure Cu has been studied by in situ electron microscopy. At enough high temperature, Brownian type motion of helium bubbles in the matrix and their easy motion along the edge dislocation are observed. At low temperatures where bubbles are thermally immobile, it is found that intermittent motion of the bubble is induced along interstitial type dislocation loops that are growing or shrinking under the irradiation. Possible mechanisms for the intermittent motion under the irradiation are discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Shimane Univ, Dept Mat Sci, Matsue, Shimane 6908504, Japan.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Ono, K (reprint author), Shimane Univ, Dept Mat Sci, 1060 Nishi Kawatsu, Matsue, Shimane 6908504, Japan.
NR 8
TC 7
Z9 8
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 114
EP 117
DI 10.1016/S0168-583X(03)00695-5
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500025
ER

PT J
AU Alves, E
   da Silva, RC
   Pinto, JV
   Monteiro, T
   Savoini, B
   Caceres, D
   Gonzalez, R
   Chen, Y
AF Alves, E
   da Silva, RC
   Pinto, JV
   Monteiro, T
   Savoini, B
   Caceres, D
   Gonzalez, R
   Chen, Y
TI Radiation-damage recovery in undoped and oxidized Li doped MgO crystals
   implanted with lithium ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE MgO crystals; Li doping; RBS/channeling; optical absorption
ID PHOTONIC MATERIALS; SINGLE-CRYSTALS; BEAM SYNTHESIS; LUMINESCENCE;
   NANOCLUSTERS
AB Undoped MgO and oxidized Li-doped MgO single crystals were implanted with 1 x 10(17) Li+/cm(2) at 175 keV. The Rutherford backscattering spectrometry (RBS)/channeling data obtained after implantation shows that damage was produced throughout the entire range of the implanted ions. Optical absorption measurements indicate that after implantation the most intense band occurs at approximate to5.0 eV, which has been associated with anion vacancies.
   After annealing at 450 K the intensity of the oxygen-vacancy band decreases monotonically with temperature and completely disappears at 950 K. A broad extinction band centered at approximate to2.14 eV associated with lithium precipitates emerges gradually and anneals out at 1250 K. RBS/channeling shows that recovery of the implantation damage is completed after annealing the oxidized samples at 1250 K. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Inst Tecnol & Nucl, Dept Fis, P-2685953 Sacavem, Portugal.
   Univ Aveiro, Dept Fis, P-3810193 Aveiro, Portugal.
   Univ Carlos 3, Dept Fis, Madrid 28911, Spain.
   US DOE, Div Mat Sci, Germantown, MD 20874 USA.
RP Alves, E (reprint author), Inst Tecnol & Nucl, Dept Fis, EN 10, P-2685953 Sacavem, Portugal.
RI Monteiro, Teresa/B-7466-2012; Universidade Aveiro, Departamento
   Fisica/E-4128-2013; Alves, Eduardo/K-2481-2013; Vaz Pinto,
   Joana/J-3632-2013; 
OI Monteiro, Teresa/0000-0001-6945-2759; Alves,
   Eduardo/0000-0003-0633-8937; Vaz Pinto, Joana/0000-0003-0847-7711;
   SAVOINI, BEGONA/0000-0002-7347-7569; da Silva, Rui/0000-0002-4442-891X
NR 18
TC 6
Z9 6
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 148
EP 152
DI 10.1016/S0168-583X(03)00704-3
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500032
ER

PT J
AU Thevuthasan, S
   Jiang, W
   Shutthanandan, V
   Weber, WJ
AF Thevuthasan, S
   Jiang, W
   Shutthanandan, V
   Weber, WJ
TI Accumulation of ion beam induced disorder in strontium titanate
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE amorphization; ceramics; ion irradiation; radiation effects; atomic
   defects
ID IMPLANTED SRTIO3; THERMAL RECOVERY; IRRADIATION; OXIDES
AB Damage accumulation has been investigated in single crystal SrTiO2(100) irradiated with 1.0 MeV Au2+ by using in situ Rutherford backscattering spectrometry in channeling geometry (RBS/C). Samples were irradiated at temperatures of 170, 300 and 350 K with ion fluences ranging from 0.05 to 0.60 Au2+/nm(2). The in situ RBS/C analysis indicates that the relative disorder in both Sr and Ti sublattices shows a strong sigmoidal dependence on ion dose. After an ion fluence of 0.30 Au2+/nm(2) at 170 K, the buried region at the damage peak (similar to60 nm) becomes fully amorphous, which corresponds to a dose of similar to0.39 dpa. For irradiation at 300 and 350 K, ion fluences of 0.40 Au2+/nm(2) (similar to0.52 dpa) and 0.45 Au2+/nm(2) (similar to0.59 dpa) are necessary to achieve an amorphous state at the damage peak, respectively. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Environm Mol Sci Lab, Richland, WA 99352 USA.
RP Pacific NW Natl Lab, Environm Mol Sci Lab, POB 999,MSIN K8-93, Richland, WA 99352 USA.
EM theva@pnl.gov
RI Weber, William/A-4177-2008; 
OI Weber, William/0000-0002-9017-7365; Jiang, Weilin/0000-0001-8302-8313
NR 16
TC 5
Z9 5
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 162
EP 165
DI 10.1016/S0168-583X(03)00710-9
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500035
ER

PT J
AU Nordlund, K
   Tarus, J
   Keinonen, J
   Donnelly, SE
   Birtcher, RC
AF Nordlund, K
   Tarus, J
   Keinonen, J
   Donnelly, SE
   Birtcher, RC
TI Atomic fingers, bridges and slingshots: formation of exotic surface
   structures during ion irradiation of heavy metals
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE ion irradiation; surface damage; cratering; metals
ID DAMAGE; BOMBARDMENT; GOLD; FLOW
AB Recent experiments on ion irradiation of heavy metals such as gold and silver have shown that very unusual surface configurations can be produced by the irradiation. Typically, the surface damage has the shape of a crater, similar to those produced by meteorite impacts. The crater shapes are, however, often highly asymmetric and can show extended adatom ridges extending far from the crater well. Using molecular dynamics simulations we show how such exotic atom arrangements are produced. We describe atomic bridges over a crater and illustrate a slingshot-like effect which can propel atom clusters far from an impact position to produce isolated adatom islands. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Helsinki, Accelerator Lab, FIN-00014 Helsinki, Finland.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Univ Salford, Joule Phys Lab, Salford M5 4WT, Lancs, England.
RP Nordlund, K (reprint author), Univ Helsinki, Accelerator Lab, POB 43,Hameentie 100, FIN-00014 Helsinki, Finland.
RI Keinonen, Juhani/D-4347-2013; Nordlund, Kai/L-8275-2014; 
OI Nordlund, Kai/0000-0001-6244-1942; Donnelly, Stephen/0000-0002-9749-5550
NR 8
TC 23
Z9 23
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 189
EP 193
DI 10.1016/S0168-583X(03)00724-9
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500041
ER

PT J
AU Donnelly, SE
   Vishnyakov, VM
   Carter, G
   Terry, J
   Haworth, LI
   Sermanni, P
   Birtcher, RC
AF Donnelly, SE
   Vishnyakov, VM
   Carter, G
   Terry, J
   Haworth, LI
   Sermanni, P
   Birtcher, RC
TI The use of cavities for gettering in silicon microelectronic devices
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE silicon; cavities; gettering; TEM; MOSFET devices
ID TRANSITION-METALS; HELIUM DESORPTION; ION-IMPLANTATION; C-SI; VOIDS;
   MECHANISMS; OXYGEN
AB This paper presents results from an ongoing three-year project in which the use of microcavities to getter transition metal impurities in silicon-based microelectronic devices has been investigated. The paper reports on the results of a fundamental study of bubble growth mechanisms and on a systematic study of possible detrimental effects of cavity gettering on 1.2 mum p-type metal-oxide-semiconductor field effect transistors. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Salford, Inst Mat Res, Joule Phys Lab, Manchester M5 4WT, Lancs, England.
   Univ Edinburgh, Scottish Microelect Ctr, Edinburgh EH9 3JF, Midlothian, Scotland.
   Motorola UK Ltd, E Kilbride G75 0TG, Lanark, Scotland.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Donnelly, SE (reprint author), Univ Salford, Inst Mat Res, Joule Phys Lab, Manchester M5 4WT, Lancs, England.
RI Terry, Jonathan/K-6638-2016; 
OI Terry, Jonathan/0000-0002-4012-9330; Donnelly,
   Stephen/0000-0002-9749-5550; Vishnyakov, Vladimir/0000-0003-3045-3134
NR 20
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 422
EP 426
DI 10.1016/S0168-583X(03)00783-3
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500093
ER

PT J
AU Rehn, LE
   Kestel, BJ
   Baldo, PM
   Hiller, J
   McCormick, AW
   Birtcher, RC
AF Rehn, LE
   Kestel, BJ
   Baldo, PM
   Hiller, J
   McCormick, AW
   Birtcher, RC
TI Self-organized porous-alumina implantation masks for generating
   nanoscale arrays
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE ion implantation; mask; array; nanostructures
ID MEMBRANES
AB Starting from two-step anodizing recipes available in the literature, we fabricated self-supporting ordered ion-implantation masks that are several mm(2) in area and approximately 2 mum thick. SEM micrographs reveal self-organized structures with straight open pores, 50-150 nm in diameter, extending completely through the mask. As reported previously, the pore diameter and spacing depend critically upon the anodization parameters, e.g. type of acid and its molality, the applied voltage and the solution temperature. Ion-milling procedures were developed for opening the bottoms of the anodized pores. These masks appear quite robust during exposure to ion beams of I MeV He, Ne and Kr. The steps necessary to fabricate the implantation masks, including opening the pores, are described. Measurements are reported of the angular dependence of the transmitted ion current; these results are consistent with the physical dimensions of the opened pores. TEM images of an implanted array are also shown. (C) 2003 Published by Elsevier Science B.V.
C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Rehn, LE (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Hiller, Jon/A-2513-2009
OI Hiller, Jon/0000-0001-7207-8008
NR 5
TC 20
Z9 20
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 490
EP 494
DI 10.1016/S0168-583X(03)00805-X
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500108
ER

PT J
AU Yu, LD
   Vilaithong, T
   Phanchaisri, B
   Apavatjrut, P
   Anuntalabhochai, S
   Evans, P
   Brown, IG
AF Yu, LD
   Vilaithong, T
   Phanchaisri, B
   Apavatjrut, P
   Anuntalabhochai, S
   Evans, P
   Brown, IG
TI Ion penetration depth in the plant cell wall
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE ion penetration depth; plant cell wall; ion implantation; ion beam
   bioengineering
ID BEAM
AB This study investigates the depth of ion penetration in plant cell wall material. Based on the biological structure of the plant cell wall, a physical model is proposed which assumes that the wall is composed of randomly orientated layers of cylindrical microfibrils made from cellulose molecules of C6H12O6. With this model, we have determined numerical factors for ion implantation in the plant cell wall to correct values calculated from conventional ion implantation programs. Using these correction factors, it is possible to apply common ion implantation programs to estimate the ion penetration depth in the cell for bioengineering purposes. These estimates are compared with measured data from experiments and good agreement is achieved. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Chiang Mai Univ, Fac Sci, Dept Phys, Fast Neutron Res Facil, Chiang Mai 50200, Thailand.
   Chiang Mai Univ, Inst Sci & Technol Res & Dev, Chiang Mai 50202, Thailand.
   Chiang Mai Univ, Fac Agr, Dept Hort, Chiang Mai 50200, Thailand.
   Chiang Mai Univ, Fac Sci, Dept Biol, Chiang Mai 50200, Thailand.
   Australian Nucl Sci & Technol Org, Div Phys, Menai, NSW 2234, Australia.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Yu, LD (reprint author), Chiang Mai Univ, Fac Sci, Dept Phys, Fast Neutron Res Facil, Chiang Mai 50200, Thailand.
NR 12
TC 27
Z9 29
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 586
EP 590
DI 10.1016/S0168-583X(03)00840-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500127
ER

PT J
AU Afanasyev-Charkin, IV
   Nastasi, M
AF Afanasyev-Charkin, IV
   Nastasi, M
TI Dependence of optical properties and hardness on carbon content in
   silicon carbonitride films deposited by plasma ion immersion processing
   technique
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE plasma ion immersion processing; thin film; silicon nitride; silicon
   carbonitride; optical; hardness
AB Materials with Si-C-N composition are of great interest due to their remarkable properties such as high hardness and oxidation resistance. In this study amorphous silicon nitride and silicon carbonitride films were deposited on glass, fused silica, and carbon substrates by the plasma immersion ion processing technique. Gas pressure during the deposition was kept around 0.13 Pa (1 mTorr) and SiH4, N-2, Ar and C2H2 gas mixtures were used. Film hardness, composition and UV-visible optical absorption were characterized using nanoindentation, ion beam analysis techniques, and UV-visible spectroscopy, respectively. The films exhibit high transparency in the visible and near UV regions. Addition of the carbon to the films causes decrease in the density of the films, as well as decrease in hardness and transparency. These results suggest that in the low energy regime of PIIP the deposition of hard carbon composites with nitrogen and silicon does not take place. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Nastasi, M (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MST-8,Mail Stop K765, Los Alamos, NM 87545 USA.
NR 15
TC 9
Z9 10
U1 1
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 736
EP 740
DI 10.1016/S0168-583X(03)00829-2
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500159
ER

PT J
AU Birtcher, RC
   McCormick, AW
   Baldo, PM
   Toyoda, N
   Yamada, I
   Matsuo, J
AF Birtcher, RC
   McCormick, AW
   Baldo, PM
   Toyoda, N
   Yamada, I
   Matsuo, J
TI Gold nanoparticles sputtered by single ions and clusters
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE cluster beam; impact; crater; metals; surface modification
ID IMPACTS; BOMBARDMENT; SURFACES; AU
AB Transmission electron microscopy has been used to observe the effects of single ion and Ar cluster impacts. The impact of either single ions or cluster ions produces nanometer-sized craters on Au and ejects nanoparticles. The impact of single ions causes ejection of nanometer-sized particles of gold at the same rate as the rate of cratering leading to the conclusion that the two processes are coupled. The sputtering yield for cluster irradiation of Au exhibits a near cosine dependence on the ejection angle while the amount of Au in visible nanoparticles varies as the cube of the ejection angle. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Dept Mat Sci, Argonne, IL 60439 USA.
   Himeji Inst Technol, LASTI, Himeji, Hyogo 67122, Japan.
   Kyoto Univ, Ion Beam Engn Expt Lab, Sakyo Ku, Kyoto 606, Japan.
RP Birtcher, RC (reprint author), Argonne Natl Lab, Dept Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 10
TC 12
Z9 12
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 851
EP 854
DI 10.1016/S0168-583X(03)00877-2
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500182
ER

PT J
AU Verda, RD
   Nastasi, M
   Bower, RW
AF Verda, RD
   Nastasi, M
   Bower, RW
TI Boron-induced redistribution of hydrogen implanted at elevated
   temperature into crystalline silicon
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE hydrogen redistribution; depth profile; elevated-temperature
   implantation; boron
ID RECOIL DETECTION ANALYSIS/; DOPED SILICON; DIFFUSION
AB The redistribution of hydrogen during elevated-temperature implantation of boron-pre-implanted silicon was investigated. By redistribution we mean that the final hydrogen distribution differs from the distribution of a control sample, and is attributed to sample preparation. Samples were prepared with a single boron pre-implantation, with projected range either shallower or deeper with respect to the projected range of a subsequent elevated-temperature hydrogen implantation. For shallower boron, the hydrogen redistribution was a wholesale shift in the entire distribution toward the surface, whereas for deeper boron, partial redistribution of end-of-range hydrogen toward the bulk was observed. Self-implantation experiments show that the wholesale hydrogen redistribution is not due solely to boron pre-implantation damage to the silicon lattice, but is driven by chemical effects attributed to the presence of boron. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
   Univ Calif Davis, Davis, CA 95616 USA.
RP Nastasi, M (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, Mail Stop K765, Los Alamos, NM 87545 USA.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 927
EP 931
DI 10.1016/S0168-583X(03)00863-2
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500198
ER

PT J
AU Swadener, JG
   Nastasi, M
AF Swadener, JG
   Nastasi, M
TI Increasing the fracture toughness of silicon by ion implantation
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE fracture mechanics; implantation; radiation effects; silicon
ID NEUTRON-IRRADIATION; CERAMICS
AB Previous studies have shown that moderate doses of radiation can lead to increased fracture toughness in ceramics. An experimental investigation was conducted to determine the effects of ion implantation on fracture toughness in silicon. Specimens implanted with Ne showed increased fracture toughness, over the entire range of implantations tested. Using ions of various energies to better distribute implantation damage further increased the fracture toughness even though the region of amorphous damage was slightly decreased. The implantation damage accumulated in a predictable manner so that fracture toughness could be optimized. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Mat Sci & Technol, Los Alamos, NM 87545 USA.
RP Swadener, JG (reprint author), Los Alamos Natl Lab, Div Mat Sci & Technol, MST-8,MS-G755, Los Alamos, NM 87545 USA.
OI Swadener, John G/0000-0001-5493-3461
NR 11
TC 13
Z9 13
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 937
EP 940
DI 10.1016/S0168-583X(03)00865-6
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500200
ER

PT J
AU Bae, IT
   Ishimaru, M
   Hirotsu, Y
   Matsumura, S
   Sickafus, KE
AF Bae, IT
   Ishimaru, M
   Hirotsu, Y
   Matsumura, S
   Sickafus, KE
TI Ion-beam-induced amorphous structures in silicon carbide
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE silicon carbide; amorphous; transmission electron microscopy; electron
   diffraction; pair-distribution function
ID ALLOYS
AB Atomistic structure of ion-beam-induced amorphous silicon carbide (a-SiC) has been investigated by cross-sectional transmission electron microscopy. The electron intensities of halo patterns recorded on imaging plates were digitized quantitatively to extract reduced interference functions. We demonstrated the relationship between maximum scattering vector (Q(max)) measured in scattering experiments and the resolution of the corresponding pair-distribution function by changing Q(max) values from 160 to 230 nm(-1). The results revealed that the C-C peak becomes broadened and eventually a shoulder as the value becomes shorter, indicating that Q(max) values of <160 nm(-1) measured in previous studies are not enough to detect C-C homonuclear bonds in a-SiC. We are the first to reveal the existence of C-C and Si-Si homonuclear bonds in a-SiC using a diffraction technique. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan.
   Kyoto Univ, Dept Appl Quantum Phys & Nucl Engn, Fukuoka 8128581, Japan.
   Kyoto Univ, Dept Energy Sci & Engn, Fukuoka 8128581, Japan.
   Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Ishimaru, M (reprint author), Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan.
EM ishimaru@sanken.osaka-u.ac.jp
NR 15
TC 3
Z9 3
U1 2
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 974
EP 978
DI 10.1016/S0168-583X(03)00905-4
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500208
ER

PT J
AU Ishimaru, M
   Naito, M
   Hirotsu, Y
   Sickafus, KE
AF Ishimaru, M
   Naito, M
   Hirotsu, Y
   Sickafus, KE
TI Amorphous structures of silicon carbonitride formed by high-dose
   nitrogen ion implantation into silicon carbide
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE silicon carbonitride; amorphous; nano-beam electron diffraction; radial
   distribution function; phase decomposition
ID DIFFRACTION; CERAMICS; FILMS
AB Short-range order in amorphous silicon carbonitride (a-SiCxNy) has been examined using transmission electron microscopy. Single crystals of 6H-SiC with [0 0 0 1] orientation were implanted with 180 keV nitrogen ions at ambient temperature to a fluence of 5 x 10(17) N+/cm(2), followed by thermally annealing at 1500 degreesC for 30 min. A fully amorphous layer was formed at the topmost layer in the as-implanted sample. A part of the amorphous phase transformed into crystalline SiC after annealing. Radial distribution functions extracted via nano-beam electron diffraction patterns clearly showed that atomistic structures of the ion-beam-induced amorphous phase are different from those of the remaining amorphous phase in the annealed sample: a-SiCxNy possesses an intermediate bond length between Si-C and Si-N, while Si-N and Si-C bonds become more pronounced in the amorphous layer of the annealed specimen. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Osaka Univ, Inst Sci & Ind Res, Ibaraki, Osaka 5670047, Japan.
   Osaka Univ, Dept Mat Sci & Engn, Suita, Osaka 5650871, Japan.
   Los Alamos Natl Lab, Mat Sci & Technol Div, Los Alamos, NM 87545 USA.
RP Ishimaru, M (reprint author), Osaka Univ, Inst Sci & Ind Res, 8-1 Mihogaoka, Ibaraki, Osaka 5670047, Japan.
NR 16
TC 8
Z9 8
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 994
EP 998
DI 10.1016/S0168-583X(03)00909-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500212
ER

PT J
AU Azevedo, GD
   Glover, CJ
   Yu, KM
   Foran, GJ
   Ridgway, MC
AF Azevedo, GD
   Glover, CJ
   Yu, KM
   Foran, GJ
   Ridgway, MC
TI Direct observation of structural relaxation in amorphous compound
   semiconductors
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE InAs; EXAFS; ion implantation; amorphous solids
ID INP; SILICON; GE; SI
AB Extended X-ray absorption fine structure measurements have been used to characterize, at the atomic level, the thermally induced structural relaxation of InAs amorphized by ion implantation. Our results are consistent with a relaxation mechanism mediated by point-defect annihilation with concomitant reduction in both chemical and structural disorder. Though relaxation yields a decrease in chemical disorder, homopolar bonding is still retained in the fully relaxed amorphous structure. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Australian Natl Univ & Engn, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia.
   Lund Univ, Max Lab, S-22100 Lund, Sweden.
   Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA.
   Australian Nucl Sci & Technol Org, Menai, NSW 2234, Australia.
RP Australian Natl Univ & Engn, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia.
EM gustavo.azevedo@rsphysse.anu.edu.au
RI Yu, Kin Man/J-1399-2012; Ridgway, Mark/D-9626-2011; Azevedo,
   Gustavo/E-9399-2010
OI Yu, Kin Man/0000-0003-1350-9642; Ridgway, Mark/0000-0002-0642-0108;
   Azevedo, Gustavo/0000-0003-0301-3280
NR 12
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 1024
EP 1027
DI 10.1016/S0168-583X(03)00926-1
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500218
ER

PT J
AU Jiang, W
   Weber, WJ
   Wang, CM
AF Jiang, W
   Weber, WJ
   Wang, CM
TI Ion-beam-irradiation induced defects in gallium nitride
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE ion-beam irradiation; disorder accumulation; defect microstructures; GaN
ID GAN; IMPLANTATION; DISORDER; SILICON; DAMAGE
AB Epitaxial single-crystal gallium nitride (GaN) films on sapphire were irradiated at low and room temperatures using O+ ions over a range of fluences. The accumulation of disorder on the Ga sublattice has been investigated based on He+ Rutherford backscattering analysis along the (0 0 0 1)-axial channeling direction. The degree of disorder in the O+ irradiated GaN increases at low doses and saturates above 10 displacements per atom (dpa). The microstructures of two O+-irradiated specimens are characterized using high-resolution transmission electron microscopy. Similar planar defect structures at the saturated disorder level are observed for as-irradiated and thermally annealed GaN. The growth and annihilation of these defects during ion irradiation and thermal annealing are believed to contribute to the saturation and stability of defect concentrations. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Pacific NW Natl Lab, Richland, WA 99352 USA.
RP Jiang, W (reprint author), Pacific NW Natl Lab, MS K8-93,POB 999, Richland, WA 99352 USA.
RI Weber, William/A-4177-2008; 
OI Weber, William/0000-0002-9017-7365; Jiang, Weilin/0000-0001-8302-8313
NR 15
TC 5
Z9 5
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 1037
EP 1041
DI 10.1016/S0168-583X(03)00929-7
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500221
ER

PT J
AU Johnson, CM
   Wall, FD
   Barbour, JC
AF Johnson, CM
   Wall, FD
   Barbour, JC
TI Using ion implantation to study localized corrosion of Al
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 13th International Conference on Ion Beam Modification of Materials
CY SEP 01-06, 2002
CL KOBE, JAPAN
DE pitting; Al2O3; ion implantation; Cl; localized corrosion
AB A mechanistic-based understanding of corrosion is needed in order to predict aging characteristics and reliability of either electronic or structural components. Although it is well known that the presence of a halide such as Cl- is necessary for pit initiation, the precise role the Cl- plays in the oxide breakdown is not understood. Cl and Ar ion implantation were used to modify air passivated Al using the implantation profile to provide a variation in Cl concentration with depth, in conjunction with varying implant fluences. After irradiation, samples were exposed to a corrosive environment and the electrochemical behavior was characterized as a function of impurity level. The pitting potential varied in an inverse relationship with the Cl concentration when measured in Cl-containing solutions. In solutions without Cl it was estimated that a concentration on the order of 0.5 at.% was required to initiate pitting. Implanting the inert ion of Ar did not enhance pitting. (C) 2003 Published by Elsevier Science B.V.
C1 Sandia Natl Labs, Albuquerque, NM 87185 USA.
RP Barbour, JC (reprint author), Sandia Natl Labs, POB 5800,MS 1415, Albuquerque, NM 87185 USA.
NR 4
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 206
BP 1062
EP 1065
DI 10.1016/S0168-583X(03)00911-X
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 692ZQ
UT WOS:000183690500226
ER

PT J
AU Beiersdorfer, P
   Lopez-Urrutia, JRC
   Utter, SB
   Trabert, E
   Gustavsson, MGH
   Forssen, C
   Martensson-Pendrill, AM
AF Beiersdorfer, P
   Lopez-Urrutia, JRC
   Utter, SB
   Trabert, E
   Gustavsson, MGH
   Forssen, C
   Martensson-Pendrill, AM
TI Hyperfine structure of heavy hydrogen-like ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE hyperfine structure; hyperfine anomaly; nuclear magnetization; thallium
ID THALLIUM; MAGNETIZATION; BEAM
AB The hyperfine splittings of the Is hydrogen-like ground level of two isotopes of thallium were measured using the SuperEBIT electron beam ion trap. The measurements allowed us to accurately infer a magnetization radius. The inferred radius exceeds the single particle estimate by about 10% and the nuclear charge radius by about 7%. Because two isotopes were measured, we were able to observe for the first time the interaction between the finite size of the nuclear magnetization distribution and the finite size of the charge distribution on the hyperfine anomaly. The measured isotope difference of 30.59 +/- 0.38 meV differs from the value of 31.04 +/- 0.01 meV inferred from neutral thallium using a point magnetic dipole approximation, but is in good agreement with the difference of 30.71 +/- 0.16 meV calculated by using an extended magnetic dipole. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Univ Gothenburg, SE-41296 Gothenburg, Sweden.
   Chalmers Univ Technol, SE-41296 Gothenburg, Sweden.
   Ruhr Univ Bochum, Fak Phys & Astron, D-4630 Bochum, Germany.
RP Beiersdorfer, P (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RI Forssen, Christian/C-6093-2008; Crespo Lopez-Urrutia, Jose
   R./F-7069-2011
OI Forssen, Christian/0000-0003-3458-0480; Crespo Lopez-Urrutia, Jose
   R./0000-0002-2937-8037
NR 14
TC 9
Z9 9
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 62
EP 65
DI 10.1016/S0168-583X(03)00534-2
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200011
ER

PT J
AU Trabert, E
   Beiersdorfer, P
   Gwinner, G
   Pinnington, EH
   Wolf, A
AF Trabert, E
   Beiersdorfer, P
   Gwinner, G
   Pinnington, EH
   Wolf, A
TI M1 transition rates from electron beam ion trap and heavy-ion storage
   ring
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE forbidden transitions; atomic lifetimes; ion trapping
ID BORON ISOELECTRONIC SEQUENCE; FE-XIII; B-LIKE; INTERCOMBINATION;
   CONFIGURATIONS; LIFETIMES; LINES; XIV
AB The transition probability of the magnetic dipole (M1) transition 2s(2)2p P-2(0) J = 1/2 to J' = 3/2 (lambda = 574.19 nm) in the B-like ion Cl12- has been measured using two different light sources, the Heidelberg heavy-ion storage ring TSR and the Livermore electron beam ion trap EBIT-I. Our results for the atomic level lifetime are (21.2 +/- 0.6) ms from the heavy-ion storage ring and (21.0 +/- 0.5) ms from the electron beam ion trap. Particular attention has been paid to systematic errors, using these measurements as well as recent measurements on Fe10+ and Fe13+ ions as examples. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany.
   Lawrence Livermore Natl Lab, Div Phys & Adv Technol, Livermore, CA 94550 USA.
   Max Planck Inst Kernphys, D-69117 Heidelberg, Germany.
   Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
RP Trabert, E (reprint author), Ruhr Univ Bochum, Fak Phys & Astron, D-44780 Bochum, Germany.
NR 21
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 83
EP 86
DI 10.1016/S0168-583X(03)00545-7
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200016
ER

PT J
AU Takacs, E
   Silver, E
   Laming, JM
   Gillaspy, JD
   Schnopper, H
   Brickhouse, N
   Barbera, M
   Mantraga, M
   Ratliff, LP
   Tawara, H
   Makonyi, K
   Madden, N
   Landis, D
   Beeman, J
   Haller, EE
AF Takacs, E
   Silver, E
   Laming, JM
   Gillaspy, JD
   Schnopper, H
   Brickhouse, N
   Barbera, M
   Mantraga, M
   Ratliff, LP
   Tawara, H
   Makonyi, K
   Madden, N
   Landis, D
   Beeman, J
   Haller, EE
TI Astrophysics and spectroscopy with microcalorimeters on an electron beam
   ion trap
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE electron beam ion trap; X-ray; microcalorimeter; highly charged ion;
   laboratory astrophysics
ID X-RAY SPECTROSCOPY; TRANSMISSION GRATING SPECTROMETER; FE-XVII;
   LABORATORY ASTROPHYSICS; EMISSION; SPECTRA; CAPELLA; TEMPERATURE;
   INTENSITY; PROGRESS
AB Electron beam ion traps combined with X-ray microcalorimeters provide an indispensable tool for laboratory astrophysics supporting recent and future X-ray missions. The program at the National Institute of Standards and Technology uses spectroscopic methods to study highly ionized plasmas and atomic physics related to astrophysics problems (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
   MIT, Cambridge, MA USA.
   Debrecen Univ, H-4026 Debrecen, Hungary.
   Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
   USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA.
   INAF, Osserv Astron Palermo GS Vaiana, Palermo, Italy.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
EM endre.takacs@nist.gov
OI Brickhouse, Nancy/0000-0002-8704-4473; Barbera,
   Marco/0000-0002-3188-7420
NR 36
TC 6
Z9 6
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 144
EP 155
DI 10.1016/S0168-583X(03)00937-6
PG 12
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200028
ER

PT J
AU Beiersdorfer, P
   Behar, E
   Boyce, KR
   Brown, GV
   Chen, H
   Gendreau, KC
   Graf, A
   Gu, MF
   Harris, CL
   Kahn, SM
   Kelley, RL
   Lepson, JK
   May, MJ
   Neill, PA
   Pinnington, EH
   Porter, FS
   Smith, AJ
   Stahle, CK
   Szymkowiak, AE
   Tillotson, A
   Thorn, DB
   Trabert, E
   Wargelin, BJ
AF Beiersdorfer, P
   Behar, E
   Boyce, KR
   Brown, GV
   Chen, H
   Gendreau, KC
   Graf, A
   Gu, MF
   Harris, CL
   Kahn, SM
   Kelley, RL
   Lepson, JK
   May, MJ
   Neill, PA
   Pinnington, EH
   Porter, FS
   Smith, AJ
   Stahle, CK
   Szymkowiak, AE
   Tillotson, A
   Thorn, DB
   Trabert, E
   Wargelin, BJ
TI Overview of the Livermore electron beam ion trap project
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE electron beam ion trap; SuperEBIT; microcalorimeter; spectroscopy (X-ray
   and optical)
ID M1 TRANSITION RATES; HIGH-RESOLUTION; FE-XVII; LINES; MICROCALORIMETER;
   SPECTROMETER; INTENSITY
AB The Livermore electron beam ion trap facility has recently been moved to a new location within LLNL, and new instrumentation was added, including a 32-pixel microcalorimeter. The move was accompanied by a shift of focus toward in situ measurements of highly charged ions, which continue with increased vigor. Overviews of the facility, which includes EBIT-I and SuperEBIT, and the research projects are given, including results from optical spectroscopy, QED, and X-ray line excitation measurements. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Columbia Univ, New York, NY 10027 USA.
   NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
   Univ Calif Davis, Davis, CA 95616 USA.
   MIT, Cambridge, MA 02139 USA.
   Univ Nevada, Reno, NV 89557 USA.
   Univ Calif Berkeley, Berkeley, CA 94720 USA.
   Univ Alberta, Edmonton, AB T6G 2J1, Canada.
   Morehouse Coll, Atlanta, GA 30314 USA.
   Smithsonian Astrophys Observ, Cambridge, MA 02138 USA.
RP Beiersdorfer, P (reprint author), Lawrence Livermore Natl Lab, L-260, Livermore, CA 94550 USA.
RI Porter, Frederick/D-3501-2012; Kelley, Richard/K-4474-2012
OI Porter, Frederick/0000-0002-6374-1119; 
NR 31
TC 11
Z9 11
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 173
EP 177
DI 10.1016/S0168-583X(03)00941-8
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200032
ER

PT J
AU Stohlker, T
   Banas, D
   Beyer, HF
   Gumberidze, A
   Kozhuharov, C
   Kanter, E
   Krings, T
   Lewoczko, W
   Ma, X
   Protic, D
   Sierpowski, D
   Spillmann, U
   Tachenov, S
   Warczak, A
AF Stohlker, T
   Banas, D
   Beyer, HF
   Gumberidze, A
   Kozhuharov, C
   Kanter, E
   Krings, T
   Lewoczko, W
   Ma, X
   Protic, D
   Sierpowski, D
   Spillmann, U
   Tachenov, S
   Warczak, A
TI Applications of position sensitive germanium detectors for X-ray
   spectroscopy of highly charged heavy ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE position sensitive detectors; X-ray spectroscopy; photon polarization;
   high-Z ions; radiative electron capture
AB The spectroscopy of atomic transitions in the hard X-ray regime above 15 keV utilizing position-sensitive solid state detectors is discussed. Special emphasis is given to the current detector developments for X-ray spectroscopy of heavy ions at the ESR storage ring where applications for precision spectroscopy as well as for polarization studies are of particular interest. For both cases, the advantages and new possibilities which are opened up by position and energy resolving solid state detectors are illustrated by the presentation of first experiments. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany.
   Univ Franche Comte, Inst Kernphys, Frankfurt, Germany.
   Jan Kochanowski Univ Humanities & Sci, Inst Phys, PL-25406 Kielce, Poland.
   Tblisi State Univ, Tblisi, GA USA.
   Argonne Natl Lab, Argonne, IL 60439 USA.
   Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany.
   Jagiellonian Univ, Inst Phys, Krakow, Poland.
   Inst Modern Phys, Lanzhou, Peoples R China.
RP Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany.
EM t.stoehlker@gsi.de
RI Banas, Dariusz/F-5025-2011
OI Banas, Dariusz/0000-0003-1566-5446
NR 10
TC 21
Z9 21
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 210
EP 214
DI 10.1016/S0168-583X(03)00557-3
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200040
ER

PT J
AU Matranga, M
   Barbera, M
   Maggio, A
   Peres, G
   Serio, S
   Takacs, E
   Silver, E
   Gillaspy, J
   Schnopper, H
   Laming, M
   Beeman, J
   Haller, E
   Madden, N
AF Matranga, M
   Barbera, M
   Maggio, A
   Peres, G
   Serio, S
   Takacs, E
   Silver, E
   Gillaspy, J
   Schnopper, H
   Laming, M
   Beeman, J
   Haller, E
   Madden, N
TI EBIT diagnostics using X-ray spectra of highly ionized Ne
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE X-ray spectra; EBIT; excitation; ionization of atoms
ID BEAM ION-TRAP; LABORATORY ASTROPHYSICS
AB We have carried out a detailed analysis of highly ionized neon spectra collected at the NIST EBIT using an NTD germanium X-ray microcalorimeter developed at the Harvard-Smithsonian Center for Astrophysics [Nucl. Instr. and Meth. A 444 (2000) 156]. Our attention was focused especially on the Ne IX He-like triplet to check electron density diagnostics through the intercombination/forbidden line ratio. We have investigated possible effects of the ion dynamics on the plasma emission line intensities, looking at the dependence of the count-rate and the charge state distribution on the electron beam energy and current. The temperature and spatial distribution of the neon ions, and hence the overlap between the electron beam and the ion cloud, depend on the electron beam operating parameters. The overlap affects the average electron density seen by the ions, and in turn the measured line ratio. These results underscore the value of future improved studies of the trapped ion dynamics, both for understanding the EBIT performance and for allowing experimenters to take full advantage of its potential for astrophysical plasma diagnostics. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 INAF, Osserv Astron Palermo, I-90134 Palermo, Italy.
   Univ Palermo, Dipartimento Sci Fis & Astron, I-90134 Palermo, Italy.
   MIT, Cambridge, MA 02139 USA.
   Univ Debrecen, H-4026 Debrecen, Hungary.
   Smithsonian Astrophys Observ, Cambridge, MA 02138 USA.
   Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
   USN, Res Lab, Washington, DC 20375 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP INAF, Osserv Astron Palermo, I-90134 Palermo, Italy.
EM barbera@astropa.unipa.it
RI Maggio, Antonio/P-5700-2015; 
OI Maggio, Antonio/0000-0001-5154-6108; Barbera, Marco/0000-0002-3188-7420;
   PERES, Giovanni/0000-0002-6033-8180
NR 11
TC 6
Z9 6
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 244
EP 249
DI 10.1016/S0168-583X(03)00943-1
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200047
ER

PT J
AU Biedermann, C
   Radtke, R
   Fournier, K
AF Biedermann, C
   Radtke, R
   Fournier, K
TI Line ratios and wavelengths of helium-like argon n=2 satellite
   transitions and resonance lines
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE highly charged ions; EBIT; X-ray-spectroscopy; wavelength; line ratios;
   plasma-temperature diagnostic
ID HE-LIKE IONS; ISOELECTRONIC SEQUENCE; SPECTRA; INTENSITIES; ENERGIES;
   PLASMAS; TOKAMAK
AB The characteristic X-ray emission from helium-like argon was investigated as a mean to diagnose hot plasmas. We have measured the radiation from n = 2 - 1 parent lines and from KLn dielectronic recombination satellites with high wavelength resolution as function of the excitation energy using the Berlin Electron Beam Ion Trap. Values of wavelenath relative to the resonance and forbidden line are tabulated and compared with references. The line intensity observed over a wide range of excitation energies is weighted with a Maxwellian electron-energy distribution to analyze line ratios as function of plasma temperature. Line ratios (j + z)/w and k/w compare nicely with theoretical predictions and demonstrate their applicability as temperature diagnostic. The ratio z/(x + y) shows not to depend on the electron density. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Max Planck Inst Plasma Phys, Bereich Plasmadiagnost, D-10117 Berlin, Germany.
   Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
RP Biedermann, C (reprint author), Max Planck Inst Plasma Phys, Bereich Plasmadiagnost, D-10117 Berlin, Germany.
EM biedermann@ipp.mpg.de
NR 12
TC 2
Z9 2
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 255
EP 259
DI 10.1016/S0168-583X(02)01973-0
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200049
ER

PT J
AU Schippers, S
   Muller, A
   Ricz, S
   Bannister, ME
   Dunn, GH
   Bozek, J
   Schlachter, AS
   Hinojosa, G
   Cisneros, C
   Aguilar, A
   Covington, AM
   Gharaibeh, MF
   Phaneuf, RA
AF Schippers, S
   Muller, A
   Ricz, S
   Bannister, ME
   Dunn, GH
   Bozek, J
   Schlachter, AS
   Hinojosa, G
   Cisneros, C
   Aguilar, A
   Covington, AM
   Gharaibeh, MF
   Phaneuf, RA
TI Photoionization of Sc2+: Experimental link with photo recombination of
   Sc3+ by application of detailed balance
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE photoionization; photo recombination; detailed balance; merged beams;
   synchrotron radiation; heavy-ion storage ring
ID IONS
AB The principle of microscopic time-reversal of physical processes, detailed balance, is widely used and depended upon in the theoretical community as a connection between the inverse processes of photorecombination (PR) and photoionization (PI). This paper reports on a novel use of detailed balance and the comparison of experimental results obtained by two very distinct techniques to determine both the metastable fraction of an ion beam and partial Sc3+ PR cross sections and partial Sc2+ PI cross sections for the ground state and for two metastable states. The Sc2+ to Sc3+ system presents a unique opportunity to obtain comprehensive state-selective information by combining results from PR and PI experiments. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Univ Giessen, Inst Kernphys, D-35392 Giessen, Germany.
   Inst Nucl Res ATOMKI, H-4001 Debrecen, Hungary.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ Colorado, JILA, Boulder, CO 80309 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
   Univ Nacl Autonoma Mexico, Ctr Ciencias Fis, Cuernavaca 62131, Morelos, Mexico.
   Univ Nevada, Dept Phys, Reno, NV 89557 USA.
RP Univ Giessen, Inst Kernphys, Leihgesterner Weg 217, D-35392 Giessen, Germany.
EM stefan.e.schippers@strz.uni-giessen.de
RI Schippers, Stefan/A-7786-2008; Bozek, John/E-4689-2010; Ricz,
   Sandor/A-4735-2011; Muller, Alfred/A-3548-2009; Bozek, John/E-9260-2010
OI Schippers, Stefan/0000-0002-6166-7138; Muller,
   Alfred/0000-0002-0030-6929; Bozek, John/0000-0001-7486-7238
NR 7
TC 4
Z9 4
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 297
EP 300
DI 10.1016/S0168-583X(02)01965-1
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200057
ER

PT J
AU Muller, A
   Phaneuf, RA
   Aguilar, A
   Gharaibeh, MF
   Schlachter, AS
   Alvarez, I
   Cisneros, C
   Hinojosa, G
   McLaughlin, BM
AF Muller, A
   Phaneuf, RA
   Aguilar, A
   Gharaibeh, MF
   Schlachter, AS
   Alvarez, I
   Cisneros, C
   Hinojosa, G
   McLaughlin, BM
TI Photoionization of C2+ ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE photoionization; synchrotron radiation; photorecombination; time
   reversal; two-electron-one-photon transitions
ID RECOMBINATION
AB We have investigated valence-shell photoionization (PI) of S-1 ground state and P-3(o) metastable states of C2+ ions. Absolute PI cross-sections were measured in the range 40.7-56.4 eV with an energy spread of 30 meV using a photon-ion merged beams arrangement at the Advanced Light Source (ALS). Detailed calculations based on the semi-relativistic Breit-Pauli R-matrix approach suggest a fraction of 40% of metastable ions in the primary beam of the experiment. Additional high resolution measurements have been carried out with an energy spread as low as 7.5 meV. The new data permit a sensitive test of theory with respect to the individual PI cross-section contributions originating from the different P-3(0.1.2) fine-structure components of the initial triplet states. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Giessen, Inst Kernphys, D-35392 Giessen, Germany.
   Univ Nevada, Dept Phys, Reno, NV 89557 USA.
   Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA.
   Univ Nacl Autonoma Mexico, Ctr Ciencias Fis, Cuernavaca 62131, Morelos, Mexico.
   Queens Univ Belfast, Sch Math & Phys, Belfast BT7 1NN, Antrim, North Ireland.
RP Univ Giessen, Inst Kernphys, Leihgesterner Weg 217, D-35392 Giessen, Germany.
EM alfred.mueller@strz.uni-giessen.de
RI Muller, Alfred/A-3548-2009
OI Muller, Alfred/0000-0002-0030-6929
NR 6
TC 7
Z9 7
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 301
EP 305
DI 10.1016/S0168-583X(02)01969-9
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200058
ER

PT J
AU Schnell, M
   Bannister, ME
   Bohm, S
   Gwinner, G
   Kieslich, S
   Muller, A
   Schippers, S
   Schwalm, D
   Shi, W
   Wolf, A
   Zhou, SG
AF Schnell, M
   Bannister, ME
   Bohm, S
   Gwinner, G
   Kieslich, S
   Muller, A
   Schippers, S
   Schwalm, D
   Shi, W
   Wolf, A
   Zhou, SG
TI Trielectronic recombination in Be-like ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE recombination; dielectronic; trielectronic; autoionisation; merged
   beams; storage ring
ID DIELECTRONIC RECOMBINATION; RATE COEFFICIENT
AB Recombination between Be-like ions and free electrons was measured using the merged-beams technique at the TSR storage ring. Trielectronic recombination via triply excited intermediate states was found to contribute significantly to the recombination spectrum. The strength of this process relies strongly on the absence of continua of singly-excited core states. Calculations corroborate the experimental findings. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Max Planck Inst Kernphys, D-69117 Heidelberg, Germany.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ Giessen, Inst Kernphys, D-35392 Giessen, Germany.
   Peking Univ, Sch Phys, Beijing 100871, Peoples R China.
RP Schnell, M (reprint author), Max Planck Inst Kernphys, Saupfercheckweg 1, D-69117 Heidelberg, Germany.
RI Schippers, Stefan/A-7786-2008; Zhou, Shan-Gui/B-3058-2008; Muller,
   Alfred/A-3548-2009
OI Schippers, Stefan/0000-0002-6166-7138; Zhou,
   Shan-Gui/0000-0003-4753-3325; Muller, Alfred/0000-0002-0030-6929
NR 7
TC 2
Z9 2
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 367
EP 369
DI 10.1016/S0168-583X(03)00539-1
PG 3
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200070
ER

PT J
AU Smith, ACH
   Bannister, ME
   Chung, YS
   Derkatch, AM
   Djuric, N
   Krause, HF
   Popovic, DB
   Wallbank, B
   Dunn, GH
AF Smith, ACH
   Bannister, ME
   Chung, YS
   Derkatch, AM
   Djuric, N
   Krause, HF
   Popovic, DB
   Wallbank, B
   Dunn, GH
TI Absolute measurements of cross-sections for near-threshold
   electron-impact excitation of Na-like and Mg-like multiply-charged ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE excitation; electron impact; multiply-charged ions
ID ENERGY-LOSS TECHNIQUE; TRANSITIONS; BEAMS; 3S(2); P-1
AB The JILA-ORNL merged electron-ion beam energy-loss apparatus has been used to measure absolute cross-sections for excitation of multiply-charged ions over the past several years. Recent measurements for the Na-like ions Al2+ and Cl6- and the Mg-like ion Cl5+ are presented and are compared with earlier measurements on the isoelectronic ions and with theoretical results. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   UCL, Dept Phys & Astron, London WC1E 6BT, England.
   Chungnam Natl Univ, Dept Phys, Taejon 305764, South Korea.
   Univ Stockholm, Dept Phys, S-11385 Stockholm, Sweden.
   Univ Colorado, JILA, Boulder, CO 80309 USA.
   NIST, Boulder, CO 80309 USA.
   St Francis Xavier Univ, Antigonish, NS B2G 2W5, Canada.
RP Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
EM bannisterme@ornl.gov
NR 16
TC 1
Z9 1
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 421
EP 426
DI 10.1016/S0168-583X(02)02051-7
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200083
ER

PT J
AU Burgdorfer, J
   Reinhold, CO
   Meyer, F
AF Burgdorfer, J
   Reinhold, CO
   Meyer, F
TI Interaction of highly charged ions with insulator surfaces at low
   velocities: Estimates for Auger rates
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE interatomic auger rates; insulators; ion-surface scattering;
   neutralization; charge transfer
ID METAL-SURFACES; GRAZING SCATTERING; BARRIER MODEL; NEUTRAL ATOMS; HOLLOW
   ATOMS; COLLISIONS; CONVERSION; FRONT
AB The interaction of highly charged ions (HCIs) with matter at low velocities continues to pose a considerable challenge to theory. After a brief overview over the scenario of neutralization and relaxation, we focus on one particularly difficult problem: reliable estimates for two-electron transition rates for highly charged ions interacting with insulator surfaces. Three different processes are considered: intra-atomic Auger, Auger capture and Auger deexcitation. They represent input for simulations of neutralization of HCIs near surfaces. Simple universal estimates as functions of the distance to the surface, as well as initial and final state populations are presented which are believed to provide reasonable order of magnitude estimates. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Vienna Univ Technol, Inst Theoret Phys, A-1040 Vienna, Austria.
   Oak Ridge Natl Lab, Dept Phys, Oak Ridge, TN 37831 USA.
RP Vienna Univ Technol, Inst Theoret Phys, Wiedner Hauptstr 8, A-1040 Vienna, Austria.
EM burg@concord.itp.tuwien.ac.at
OI Reinhold, Carlos/0000-0003-0100-4962
NR 29
TC 7
Z9 8
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 690
EP 699
DI 10.1016/S0168-583X(02)01943-2
PG 10
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200133
ER

PT J
AU Meyer, FW
   Krause, HF
   Vane, CR
AF Meyer, FW
   Krause, HF
   Vane, CR
TI Projectile neutralization in large-angle back-scattering of slow Fq+,
   Neq+ and Arq+ incident on RbI(100)
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE ion-surface scattering; highly charged projectile neutralization; RbI;
   multi-charged ions
ID QUASI-BINARY COLLISIONS; ENERGY-LOSS; IONS; SURFACE; AU(110)
AB The scattering of multi-charged ions (MCI) from the [10 0] surface of a RbI single crystal has been studied using a 120degrees back-scattering technique in the keV energy regime. Scattered charge-state distributions were measured as a function of the polar incidence angle and the target azimuthal orientation. Preliminary results indicate that "quasi-binary" collisions associated with scattering from a Rb or I site can be clearly distinguished for each scattered final charge state. The charge-state distribution and the relative Rb/I binary collision yields for scattered ions are found to depend on both the beam incidence angle and the target azimuthal orientation. The preliminary RbI(l 00) results are discussed in the context of earlier experimental and theoretical studies of MCI scattering on a Au(I 10) surface. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Meyer, FW (reprint author), Oak Ridge Natl Lab, Div Phys, POB 2008, Oak Ridge, TN 37831 USA.
NR 11
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 700
EP 704
DI 10.1016/S0168-583X(02)01957-2
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200134
ER

PT J
AU Azuma, T
   Muranaka, T
   Takabayashi, Y
   Ito, T
   Kondo, C
   Komaki, K
   Yamazaki, Y
   Datz, S
   Takada, E
   Murakami, T
AF Azuma, T
   Muranaka, T
   Takabayashi, Y
   Ito, T
   Kondo, C
   Komaki, K
   Yamazaki, Y
   Datz, S
   Takada, E
   Murakami, T
TI Angular distribution of X-ray emission from resonant coherently excited
   highly-charged heavy ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE channeling; resonant coherent excitation; spin-orbit interaction; Stark
   effect; polarization
ID FAST HYDROGEN-ATOMS; LIF(001) SURFACE; CHANNELED IONS; AR IONS;
   EXCITATION; CRYSTALS; COLLISIONS; IONIZATION; STATES; FRONT
AB X-rays emitted from resonant coherently excited (RCE) n = 2 states of 390 MeV/amu hydrogen-like Ar17+ ions were observed under planar channeling in a Si crystal. The resonance profiles for X-ray emission consisting of two peaks for j = 1/2 and j = 3/2 are characterized by suppression of the j = 1/2 peak. The degeneracy of the n = 2 states are removed by Stark effect due to the static crystal field. The RCE probability of these Stark splitted substates differs, reflecting the polarization of the oscillating crystal field. However, the associated alignment was not clearly observed. It is explained by the fact that both polarization of the oscillating crystal field and the wave functions of Stark-mixed n = 2 states depend on the distance from the channel center, and the X-ray emission is preferred in a channel center in a crystal. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan.
   Univ Tokyo, Grad Sch Arts & Sci, Inst Phys, Tokyo 1538902, Japan.
   RIKEN, Atom Phys Lab, Wako, Saitama 3510198, Japan.
   Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
   Natl Inst Radiol Sci, Chiba 2638555, Japan.
RP Azuma, T (reprint author), Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan.
RI Azuma, Toshiyuki/B-7471-2015; Yamazaki, Yasunori/N-8018-2015
OI Yamazaki, Yasunori/0000-0001-5712-0853
NR 19
TC 20
Z9 20
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 779
EP 783
DI 10.1016/S0168-583X(03)00576-7
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200149
ER

PT J
AU Minami, T
   Reinhold, CO
   Burgdorfer, J
AF Minami, T
   Reinhold, CO
   Burgdorfer, J
TI Quantum trajectory Monte Carlo method describing the coherent dynamics
   of highly charged ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE spontaneous radiative decay; open quantum system; Redfield equation;
   Lindblad form; Monte Carlo method
ID OPEN SYSTEMS; EQUATION; SOLIDS; OPTICS
AB We present a theoretical framework for studying dynamics of open quantum systems. Our formalism gives a systematic path from Hamiltonians constructed by first principles to a Monte Carlo algorithm. Our Monte Carlo calculation can treat the build-up and time evolution of coherences. We employ a reduced density matrix approach in which the total system is divided into a system of interest and its environment. An equation of motion for the reduced density matrix is written in the Lindblad form using an additional approximation to the Born-Markov approximation. The Lindblad form allows the solution of this multi-state problem in terms of Monte Carlo sampling of quantum trajectories. The Monte Carlo method is advantageous in terms of computer storage compared to direct solutions of the equation of motion. We apply our method to discuss coherence properties of the internal state of a Kr35+ ion subject to spontaneous radiative decay. Simulations exhibit clear signatures of coherent transitions. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Vienna Tech Univ, Inst Theoret Phys, A-1040 Vienna, Austria.
RP Minami, T (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
OI Reinhold, Carlos/0000-0003-0100-4962
NR 25
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 818
EP 825
DI 10.1016/S0168-583X(03)00531-7
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200156
ER

PT J
AU Seliger, M
   Tokesi, K
   Reinhold, CO
   Burgdorfer, J
AF Seliger, M
   Tokesi, K
   Reinhold, CO
   Burgdorfer, J
TI Highly transverse velocity distribution of convoy electrons emitted by
   highly charged ions
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 11th International Conference on the Physics of Highly Charged Ions (HCI
   2002)
CY SEP 01-06, 2002
CL CAEN, FRANCE
DE convoy electron emission; CTT
ID CONTINUUM; COLLISIONS; CAPTURE
AB We present a theoretical study of convoy electron emission resulting from highly charged ion (HCI) transport through carbon foils. Employing a classical transport theory we analyze the angular and energy distribution formed by multiple scattering of electrons in the solid. We find that the convoy electron distribution becomes highly transverse at intermediate foil thicknesses representing an oblate spheroidal distribution due to the stepwise excitation of the HCL The calculated convoy electron spectra are found to be in good agreement with recent measurements. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Vienna Tech Univ, Inst Theoret Phys, A-1040 Vienna, Austria.
   Hungarian Acad Sci, ATOMKI, Inst Nucl Res, H-4001 Debrecen, Hungary.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Seliger, M (reprint author), Vienna Tech Univ, Inst Theoret Phys, Wiedner Hauptstr 8-10-136, A-1040 Vienna, Austria.
OI Reinhold, Carlos/0000-0003-0100-4962
NR 14
TC 1
Z9 1
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 205
BP 830
EP 834
DI 10.1016/S0168-583X(03)00587-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 684MM
UT WOS:000183211200158
ER

PT J
AU Nazarewicz, W
   Dobaczewski, J
   Michel, N
   Ploszajczak, M
   Stoitsov, MV
   Terasaki, J
AF Nazarewicz, W
   Dobaczewski, J
   Michel, N
   Ploszajczak, M
   Stoitsov, MV
   Terasaki, J
TI Prospects for new science with EM devices
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related to their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Prov Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
ID NEUTRON-RICH NUCLEI; DEFORMED PROTON EMITTERS; SHELL-MODEL DESCRIPTION;
   DRIP-LINE NUCLEI; MEAN-FIELD; SKYRME PARAMETRIZATION; PAIRING
   INTERACTION; STAR DENSITIES; FINE-STRUCTURE; CONTINUUM
AB Nuclear life in neutron-rich and proton-rich Terra Incognita is different from that around the stability line; the promised access to completely new combinations of proton and neutron numbers offers prospects for new structural phenomena. The main objective of this talk is to discuss some of the theoretical challenges and opportunities for nuclear structure research with new electro-magnetic isotope separators. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
   Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland.
   CEA, CNRS, IN2P3, DSM,GANIL, F-14076 Caen 05, France.
   Oak Ridge Natl Lab, Joint Inst Heavy Ion Res, Oak Ridge, TN 37831 USA.
   Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, BU-1784 Sofia, Bulgaria.
RP Oak Ridge Natl Lab, Div Phys, Bldg 6011 MS 6373,POB 2008, Oak Ridge, TN 37831 USA.
EM witck@utk.edu
NR 40
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 1
EP 8
DI 10.1016/S0168-583X(02)01883-9
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700002
ER

PT J
AU Stracener, DW
AF Stracener, DW
TI Status of radioactive ion beams at the HRIBF
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE RIB facility; ISOL production target; accelerated radioactive beams;
   negative ion source
ID FACILITY
AB Radioactive Ion Beams (RIBs) at the Holifield Radioactive Ion Beam Facility (HRIBF) are produced using the isotope separation on-line technique and are subsequently accelerated up to a few MeV per nucleon for use in nuclear physics experiments. The first RIB experiments at the HRIBF were completed at the end of 1998 using F-17 beams. Since then other proton-rich ion beams have been developed and a large number of neutron-rich ion beams are now available. The neutron-rich radioactive nuclei are produced via proton-induced fission of uranium in a low-density matrix of uranium carbide. Recently developed RIBs include Al-25 from a silicon carbide target and isobarically pure beams of neutron-rich Ge, Sn, Br and I isotopes from a uranium carbide target. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Stracener, DW (reprint author), Oak Ridge Natl Lab, Div Phys, POB 2008,Bldg 6000,M-S 6368, Oak Ridge, TN 37831 USA.
NR 8
TC 73
Z9 73
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 42
EP 47
DI 10.1016/S0168-583X(02)01888-8
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700007
ER

PT J
AU Geissel, H
   Weick, H
   Winkler, M
   Munzenberg, G
   Chichkine, V
   Yavor, M
   Aumann, T
   Behr, KH
   Bohmer, M
   Brunle, A
   Burkard, K
   Benlliure, J
   Cortina-Gil, D
   Chulkov, L
   Dael, A
   Ducret, JE
   Emling, H
   Franczak, B
   Friese, J
   Gastineau, B
   Gerl, J
   Gernhauser, R
   Hellstrom, M
   Jonson, B
   Kojouharova, J
   Kulessa, R
   Kindler, B
   Kurz, N
   Lommel, B
   Mittig, W
   Moritz, G
   Muhle, C
   Nolen, JA
   Nyman, G
   Roussell-Chomaz, P
   Scheidenberger, C
   Schmidt, KH
   Schrieder, G
   Sherrill, BM
   Simon, H
   Summerer, K
   Tahir, NA
   Vysotsky, V
   Wollnik, H
   Zeller, AF
AF Geissel, H
   Weick, H
   Winkler, M
   Munzenberg, G
   Chichkine, V
   Yavor, M
   Aumann, T
   Behr, KH
   Bohmer, M
   Brunle, A
   Burkard, K
   Benlliure, J
   Cortina-Gil, D
   Chulkov, L
   Dael, A
   Ducret, JE
   Emling, H
   Franczak, B
   Friese, J
   Gastineau, B
   Gerl, J
   Gernhauser, R
   Hellstrom, M
   Jonson, B
   Kojouharova, J
   Kulessa, R
   Kindler, B
   Kurz, N
   Lommel, B
   Mittig, W
   Moritz, G
   Muhle, C
   Nolen, JA
   Nyman, G
   Roussell-Chomaz, P
   Scheidenberger, C
   Schmidt, KH
   Schrieder, G
   Sherrill, BM
   Simon, H
   Summerer, K
   Tahir, NA
   Vysotsky, V
   Wollnik, H
   Zeller, AF
TI The Super-FRS project at GSI
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related to their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Prov Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE isotope separation in flight; nuclear structure research; exotic nuclear
   beams
ID INTERACTION CROSS-SECTIONS; RELATIVISTIC HEAVY-IONS; OPTICAL-SYSTEMS;
   NUCLEI; BEAMS; IDENTIFICATION; FRAGMENTATION; SEPARATOR; ISOTOPES;
   STORAGE
AB The GSI projectile fragment separator FRS has demonstrated with many pioneering experiments the research potential of in-flight separators at relativistic energies. Although the present facility has contributed much to the progress in the field of nuclear structure physics, major improvements are desirable in the future. The characteristics of the proposed next-generation facility at GSI, the Super-FRS, will be presented and compared to other projects. The Super-FRS is a large-acceptance superconducting fragment separator followed by different experimental branches including a combination with a new storage-cooler ring system. This system consists of a collector ring (CR) and a new experimental storage ring (NESR), which allow precision mass and lifetime measurements as well as in-ring reaction studies. The NESR can be operated in combination with an electron ring to measure electron scattering with exotic nuclei. This electron heavy-ion collider will open up new fields for nuclear structure research. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany.
   Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany.
   Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany.
   Russian Acad Sci, Inst Analyt Instrumentat, St Petersburg 198103, Russia.
   Tech Univ Munich, Dept Phys, D-85747 Garching, Germany.
   Univ Santiago Compostela, E-15706 Santiago, Spain.
   RRC Kurchatov Inst, Moscow 123182, Russia.
   CEA Saclay, F-91191 Gif Sur Yvette, France.
   Chalmers Tekniska Hgsk, S-41296 Gothenburg, Sweden.
   Jagiellonian Univ, PL-30059 Krakow, Poland.
   GANIL, F-14021 Caen 5, France.
   Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany.
   Michigan State Univ, NSCL, E Lansing, MI 48824 USA.
   Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany.
RP Geissel, H (reprint author), Gesell Schwerionenforsch mbH, Planckstr 1, D-64291 Darmstadt, Germany.
EM h.geissel@gsi.de
RI Sherrill, Bradley/B-4098-2009; Sherrill, Bradley/B-3378-2011; Gerl,
   Juergen/A-3255-2011; Aumann, Thomas/B-1455-2012; Jonson,
   Bjorn/B-2816-2014; Cortina-Gil, Dolores/H-9626-2015; Benlliure,
   Jose/K-8407-2014
OI Cortina-Gil, Dolores/0000-0001-7672-9912; Benlliure,
   Jose/0000-0002-5114-1298
NR 40
TC 168
Z9 171
U1 0
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 71
EP 85
DI 10.1016/S0168-583X(02)01893-1
PG 15
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700012
ER

PT J
AU Scheidenberger, C
   Geissel, H
   Maier, M
   Munzenberg, G
   Portillo, M
   Savard, G
   Van Duppen, P
   Weick, H
   Winkler, M
   Yavor, M
   Attallah, F
   Behr, KH
   Chichkine, V
   Eliseev, S
   Hausmann, M
   Hellstrom, M
   Kaza, E
   Kindler, B
   Litvinov, Y
   Lommel, B
   Marx, G
   Matos, M
   Nankov, N
   Ohtsubo, T
   Summerer, K
   Sun, ZY
   Zhou, Z
AF Scheidenberger, C
   Geissel, H
   Maier, M
   Munzenberg, G
   Portillo, M
   Savard, G
   Van Duppen, P
   Weick, H
   Winkler, M
   Yavor, M
   Attallah, F
   Behr, KH
   Chichkine, V
   Eliseev, S
   Hausmann, M
   Hellstrom, M
   Kaza, E
   Kindler, B
   Litvinov, Y
   Lommel, B
   Marx, G
   Matos, M
   Nankov, N
   Ohtsubo, T
   Summerer, K
   Sun, ZY
   Zhou, Z
TI Energy and range focusing of in-flight separated exotic nuclei - A study
   for the energy-buncher stage of the low-energy branch of the Super-FRS
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE isotope separation in flight; range focusing; Super-FRS; ion catcher
ID HEAVY-IONS
AB The relative momentum spread of in-flight separated exotic nuclear beams produced in fragmentation and/or fission reactions is of the order of a few percent. A new technique is presented, which reduces the momentum spread significantly, and first experimental results obtained with relativistic projectile fragments are shown. This technique is the key to experiments with slowed-down and stopped beams, in particular for the efficient stopping of relativistic exotic nuclei in gas-filled stopping cells. It will be employed at the energy-buncher stage of the low-energy branch of the Super-FRS facility. The ion-optical design of the energy buncher is presented and a brief outlook to the experimental program is given. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 GSI Darmstadt, Gesell Schwerionenforsch GmbH, D-64291 Darmstadt, Germany.
   Univ Giessen, Inst Phys 2, D-35392 Giessen, Germany.
   Univ Mainz, Inst Phys, D-55099 Mainz, Germany.
   Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Katholieke Univ Leuven, B-3001 Louvain, Belgium.
   Russian Acad Sci, Inst Analyt Instrumentat, St Petersburg 198103, Russia.
RP Scheidenberger, C (reprint author), GSI Darmstadt, Gesell Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany.
RI Sun, Zhiyu/B-3922-2012; Matos, Milan/G-6947-2012
OI Sun, Zhiyu/0000-0002-7667-3178; Matos, Milan/0000-0003-1722-9509
NR 8
TC 28
Z9 28
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 119
EP 123
DI 10.1016/S0168-583X(02)01898-0
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700017
ER

PT J
AU Davids, CN
AF Davids, CN
TI Recoil separators
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
ID MASS-SPECTROMETER; ANALYZER; FACILITY
AB Recoil separators operating in the vacuum mode play a key role in a number of current research areas, including searches for superheavy elements, the study of nuclei far from stability and nuclear astrophysics. I will review some of these facilities, and will discuss ideas for improving the selectivity and efficiency of these devices. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Davids, CN (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 10
TC 15
Z9 15
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 124
EP 128
DI 10.1016/S0168-583X(02)01899-2
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700018
ER

PT J
AU Mustapha, B
   Nolen, JA
AF Mustapha, B
   Nolen, JA
TI Optimization of ISOL targets based on Monte-Carlo simulations of ion
   release curves
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE ISOL targets; release curve; diffusion; effusion; Monte-Carlo
   simulation; Geant-4
ID RIST
AB A detailed model for simulating release curves from ISOL targets has been developed. The full 3D geometry is implemented using Geant-4. Produced particles are followed individually from production to release. The delay time is computed event by event. All processes involved: diffusion, effusion and decay are included to obtain the overall release curve. By fitting to the experimental data, important parameters of the release process (diffusion coefficient, sticking time,...) are extracted. They can be used to improve the efficiency of existing targets and design new ones more suitable to produce beams of rare isotopes. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Mustapha, B (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 10
TC 9
Z9 9
U1 1
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 286
EP 292
DI 10.1016/S0168-583X(02)01926-2
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700045
ER

PT J
AU Nolen, JA
   Reed, CB
   Hassanein, A
   Novick, VJ
   Plotkin, P
   Specht, JR
AF Nolen, JA
   Reed, CB
   Hassanein, A
   Novick, VJ
   Plotkin, P
   Specht, JR
TI Development of windowless liquid lithium targets for fragmentation and
   fission of 400-kW uranium beams
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE radioactive beam; heavy-ion fragmentation; high power target; liquid
   lithium
AB The driver linac of the proposed rare isotope accelerator facility is designed to deliver 2 x 10(13) uranium ions per second at 400 MeV/u on target for radionuclide production via the fission and fragmentation mechanisms. The ion optics of the large acceptance, high-resolution fragment separators that follow the production target require primary beam spot widths of I mm. To cope with the resulting high power densities, windowless liquid lithium targets are being developed. The present designs build on existing experience with liquid lithium and liquid sodium systems that have been used for fusion and fission applications. However, no completely windowless systems have been developed or tested to date. For the beam power indicated above (400 kW), the flow requirements are up to about 20 m/s and 10 Us linear and volume flow rates, respectively. The required target thickness is 1-1.5 g/cm(2) (2-3 cm. lithium thickness). At this time a prototype windowless system with a lithium thickness of 1-2 cm is under construction. The prototype will be operated initially without beam in the Argonne liquid lithium test facility. The details of the design of the prototype and a progress report on its construction and testing will be presented. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Argonne Natl Lab, Technol Dev Div, Argonne, IL 60439 USA.
   Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA.
RP Nolen, JA (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
NR 6
TC 11
Z9 11
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 293
EP 297
DI 10.1016/S0168-583X(03)00506-8
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700046
ER

PT J
AU Nolen, JA
   Reed, CB
   Hassanein, A
   Novick, VJ
   Plotkin, P
   Specht, JR
   Morrissey, DJ
   Ottarson, JH
   Sherrill, BM
AF Nolen, JA
   Reed, CB
   Hassanein, A
   Novick, VJ
   Plotkin, P
   Specht, JR
   Morrissey, DJ
   Ottarson, JH
   Sherrill, BM
TI An adjustable thickness Li/Be target for fragmentation of 4-kW heavy ion
   beams
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE radioactive beam; heavy ion fragmentation; high power target; liquid
   lithium
AB As a first step towards developing liquid lithium target technology for a future high-power nuclear physics fragmentation facility, an adjustable thickness Li/Be hybrid target is being constructed for use at the NSCL. This target will use beryllium windows with flowing lithium. The lithium serves as a part of the target as well as the coolant. Up to I kW of beam power is dissipated in the target and is carried away by the recirculating liquid lithium loop. It is designed for high power beams in the mass range from oxygen to calcium. Tapered beryllium windows combined with a uniform thickness lithium channel gives an overall target thickness ranging from 0.7 to 3 g/cm(2), which is adjusted by moving the target vertically. The target system design is complete and is described in this paper. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Argonne Natl Lab, Technol Dev Div, Argonne, IL 60439 USA.
   Argonne Natl Lab, Div Energy Technol, Argonne, IL 60439 USA.
   Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA.
RP Nolen, JA (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Sherrill, Bradley/B-4098-2009; Sherrill, Bradley/B-3378-2011
NR 7
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 298
EP 302
DI 10.1016/S0168-583X(03)00507-X
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700047
ER

PT J
AU Wendt, KDA
   Blaum, K
   Geppert, C
   Horn, R
   Passler, G
   Trautmann, N
   Bushaw, BA
AF Wendt, KDA
   Blaum, K
   Geppert, C
   Horn, R
   Passler, G
   Trautmann, N
   Bushaw, BA
TI Laser resonance ionization for efficient and selective ionization of
   rare species
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE laser spectroscopy; mass spectrometry; resonance ionization; laser
   development; rare isotope determination
ID MASS-SPECTROMETRY; ENVIRONMENTAL-SAMPLES; TRACE ANALYSIS; SPECTROSCOPY;
   RIMS; PHOTOIONIZATION; PLUTONIUM; CA-41
AB Due to the steady development and refinement of powerful pulsed as well as continuous-wave lasers, resonance ionization has developed into an extremely versatile tool for numerous applications. Apart from suppressing isobaric interferences and contributing to isotopic selectivity already in the ionization process, resonant optical excitation and ionization with laser light ensures high overall efficiency and good temporal and spatial controls of the ions delivered to mass spectrometric applications. In the field of rare isotope research laser resonance ionization has nowadays become one of the key techniques, including similarly the determination of long-lived or stable ultra-trace isotopes with minuscule abundance in analytics as well as the online production and subsequent investigations of short-lived radioisotopes. The paper will describe the present status of atomic resonance ionization and focus on some technical and methodological developments. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Univ Mainz, Inst Phys, Inst Kernchem, D-55099 Mainz, Germany.
   Pacific NW Lab, Richland, WA 99352 USA.
RP Wendt, KDA (reprint author), Univ Mainz, Inst Phys, Inst Kernchem, Staudinger Weg 7, D-55099 Mainz, Germany.
EM klaus.wendt@uni-mainz.de
NR 21
TC 12
Z9 12
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 325
EP 330
DI 10.1016/S0168-583X(02)01936-5
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700051
ER

PT J
AU Ostroumov, PN
   Kelly, MP
   Kolomiets, AA
   Nolen, JA
   Portillo, M
   Shepard, KW
   Vinogradov, NE
AF Ostroumov, PN
   Kelly, MP
   Kolomiets, AA
   Nolen, JA
   Portillo, M
   Shepard, KW
   Vinogradov, NE
TI A post-accelerator for the US rare isotope accelerator facility
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE isobar separator; radio frequency quadrupole; superconducting linac;
   charge stripper
AB The proposed rare isotope accelerator (RIA) facility includes a post-accelerator for rare isotopes (RIB linac) which must produce high-quality beams of radioactive ions over the full mass range, including uranium, at energies above the Coulomb barrier, and have high transmission and efficiency. The latter requires the RIB linac to accept at injection ions in the 1+ charge state. A concept for such a post accelerator suitable for ions up to mass 132 has been previously described [1]. This paper presents a modified concept which extends the mass range to uranium. A high resolution separator for purifying beams at the isobaric level precedes the RIB linac. The mass filtering process will provide high purity beams while preserving transmission. For most cases a resolution of about m/Deltam = 20000 is adequate at mass A = 100 to obtain a separation between isobars of mass excess difference of 5 MeV. The design for a device capable of purifying beams at the isobaric level includes calculations up to fifth order.
   The RIB linac will utilize existing superconducting heavy-ion linac technology for all but a small portion of the accelerator system. The exceptional piece, a very-low-charge-state injector section needed for just the first few NIV of the RIB accelerator, consists of a pre-buncher followed by several sections of cw, normally-conducting RFQ. Two stages of charge stripping are provided: helium gas stripping at energies of a few keV/u, and additional foil stripping at similar to680 keV/u for the heavier ions. In extending the mass range to uranium, however, for best efficiency the helium gas stripping must be performed at different energies for different mass ions. We present numerical simulations of the beam dynamics of a design for the complete RIB linac which provides for several stripping options and uses cost-effective solenoid focusing elements in the drift-tube linac. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Ostroumov, PN (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
NR 7
TC 10
Z9 10
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 433
EP 439
DI 10.1016/S0168-583X(02)02109-2
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700070
ER

PT J
AU Powell, J
   O'Neil, JP
   Cerny, J
AF Powell, J
   O'Neil, JP
   Cerny, J
TI Production of an accelerated oxygen-14 beam
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE radioactive beams; oxygen-14 beam; BEARS
ID CHEMISTRY
AB BEARS is an ongoing project to provide a light-ion radioactive-beam capability at the 88-Inch Cyclotron at LBNL. Light radioactive isotopes are produced at a 10 MeV proton medical cyclotron, transported 3 50 m via a high-speed gas transport capillary, cryogenically separated, and injected into the 88-Inch Cyclotron's ion source. The first radioactive beam successfully accelerated was carbon-11 and beams of intensity more than 10(8) ions/s have been utilized for experiments.
   Development of oxygen-14 as the second BEARS beam presented considerable technical challenges, both due to its short half-life of 71 s and the radiation chemistry of oxygen in the target. The usual techniques developed for medical uses of oxygen-15 involve the addition of significant amounts of carrier oxygen, something that would overload the ion source.
   As a solution, oxygen-14 is produced as water in a carrier-free form, and is chemically converted in two steps to carbon dioxide, a form readily usable by the BEARS. This system has been built and is operational, and initial tests of accelerating an oxygen-14 beam have been performed. Published by Elsevier Science B.V.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
RP Powell, J (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA.
NR 10
TC 10
Z9 10
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 440
EP 443
DI 10.1016/S0168-583X(02)02110-9
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700071
ER

PT J
AU Clark, J
   Barber, RC
   Boudreau, C
   Buchinger, F
   Crawford, JE
   Gulick, S
   Hard, JC
   Heinz, A
   Lee, JKP
   Moore, RB
   Savard, G
   Seweryniak, D
   Sharma, KS
   Sprouse, G
   Vaz, J
   Wang, JC
   Zhou, Z
AF Clark, J
   Barber, RC
   Boudreau, C
   Buchinger, F
   Crawford, JE
   Gulick, S
   Hard, JC
   Heinz, A
   Lee, JKP
   Moore, RB
   Savard, G
   Seweryniak, D
   Sharma, KS
   Sprouse, G
   Vaz, J
   Wang, JC
   Zhou, Z
TI Improvements in the injection system of the Canadian Penning trap mass
   spectrometer
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE mass spectrometers
ID ARGONNE
AB The Canadian Penning Trap (CPT) mass spectrometer is designed to make precise mass measurements on a variety of stable and short-lived isotopes. Modifications to the injection system of the CPT have been implemented in recent months, the purpose being to more efficiently collect and transfer weakly-produced reaction products from the target to the Penning trap. These include a magnetic triplet situated after the target chamber to increase the acceptance of the Enge spectrograph, a velocity filter to more effectively separate the beam from the reaction products and the replacement of the Paul trap with a linear trap resulting in more efficient capture and accumulation of ions from the ion cooler. This paper will discuss these recent modifications and how they have increased our ability in making mass measurements on isotopes of low abundance, including those from a Cf-252 fission source. (C) 2002 Elsevier Science, B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada.
   McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
   Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA.
   SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA.
RP Clark, J (reprint author), Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RI Sprouse, Gene/C-3397-2009; Crawford, John/A-3771-2012; Heinz,
   Andreas/E-3191-2014
NR 7
TC 36
Z9 37
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 487
EP 491
DI 10.1016/S0168-583X(02)02177-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700080
ER

PT J
AU Muller, P
   Wang, LB
   Bailey, K
   Drake, GWF
   Du, X
   Greene, J
   Heinz, NM
   Holt, RJ
   Henderson, D
   Janssens, R
   Jiang, CL
   Law, C
   Lu, ZT
   Moore, ID
   O'Connor, TP
   Pardo, RC
   Paul, M
   Pennington, T
   Rehm, KE
   Schiffer, JP
AF Muller, P
   Wang, LB
   Bailey, K
   Drake, GWF
   Du, X
   Greene, J
   Heinz, NM
   Holt, RJ
   Henderson, D
   Janssens, R
   Jiang, CL
   Law, C
   Lu, ZT
   Moore, ID
   O'Connor, TP
   Pardo, RC
   Paul, M
   Pennington, T
   Rehm, KE
   Schiffer, JP
TI Towards measuring the charge radius of He-6 and He-8
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE atom trap trace analysis (ATTA); isotope shift; charge radius; He-6;
   He-8; MOT
ID ATOMS
AB We report on the progress towards measuring the charge radius of He-6 and He-8 nuclei by performing laser spectroscopy on these helium atoms in a magneto-optical trap (MOT). First tests to produce neutral He-6 atoms via the C-12(Li-7,He-6)N-13 reaction at the ATLAS accelerator have been successfully conducted. The MOT apparatus including the laser system and the discharge source to populate the metastable level are currently being set up. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Univ Illinois, Champaign, IL 61820 USA.
   Univ Windsor, Windsor, ON N9B 3P4, Canada.
   Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel.
RP Muller, P (reprint author), Argonne Natl Lab, Div Phys, Bldg 203,9700 S Cass Ave, Argonne, IL 60439 USA.
RI Mueller, Peter/E-4408-2011; Holt, Roy/E-5803-2011; Moore,
   Iain/D-7255-2014
OI Mueller, Peter/0000-0002-8544-8191; Moore, Iain/0000-0003-0934-8727
NR 10
TC 5
Z9 5
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 536
EP 539
DI 10.1016/S0168-583X(02)02128-6
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700090
ER

PT J
AU Shapira, D
AF Shapira, D
TI Low current diagnostic devices for radioactive beams
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE time-of-flight; radioactive ion beams; isobar tagging; electronic
   phosphor; X-rays
ID SECONDARY-ELECTRON EMISSION; PROFILE MONITOR; POSITION; SYSTEM
AB This contribution reviews detectors used for low-intensity radioactive-beam (RB) diagnostics. Emphasis is on diagnostic devices that are based on the detection of secondary products (ions, electrons) resulting from the interaction of the ion beam with a thin detection medium. Devices based on this principle can be tailored to work with low-energy (<10 MeV/A) ion beams available at current and planned ISOL type RB facilities. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Shapira, D (reprint author), Oak Ridge Natl Lab, Div Phys, Bldg 6000,MS-6368, Oak Ridge, TN 37831 USA.
NR 18
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 544
EP 552
DI 10.1016/S0168-583X(02)02130-4
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700092
ER

PT J
AU Savard, G
   Clark, J
   Boudreau, C
   Buchinger, F
   Crawford, JE
   Geissel, H
   Gulick, S
   Heinz, A
   Lee, JKP
   Levand, A
   Maier, M
   Munzenberg, G
   Scheidenberger, C
   Seweryniak, D
   Sharma, KS
   Sprouse, G
   Vaz, J
   Wang, JC
   Zabransky, BJ
   Zhou, Z
AF Savard, G
   Clark, J
   Boudreau, C
   Buchinger, F
   Crawford, JE
   Geissel, H
   Gulick, S
   Heinz, A
   Lee, JKP
   Levand, A
   Maier, M
   Munzenberg, G
   Scheidenberger, C
   Seweryniak, D
   Sharma, KS
   Sprouse, G
   Vaz, J
   Wang, JC
   Zabransky, BJ
   Zhou, Z
CA S258 Collaboration
TI Development and operation of gas catchers to thermalize
   fusion-evaporation and fragmentation products
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
AB A new approach to the production of low energy radioactive beams involves the stopping of fast beams produced by fragmentation, in-flight fission, or fusion-evaporation reaction into a large gas catcher where the reaction products are thermalized in high-purity helium and extracted as singly charged ions for post-acceleration. This removes the limitation present in standard ISOL technique for species that are difficult to extract from the target/ion source assembly. This approach has been implemented at Argonne since 1998 to inject fusion-evaporation products in an ion trap system. Via a series of improvements since then, we now reach efficiencies for these devices of close to 50% with delay times below 10 ms. In preparation for the RIA project, a larger device for stopping fragmentation products is in preparation. The basic principles behind these devices together with results obtained and experience gained operating these devices will be presented. Preparation for a test of the large gas cell at the full RIA energy at GSI will also be presented. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada.
   McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
   GSI Darmstadt, D-64291 Darmstadt, Germany.
   SUNY Stony Brook, Dept Phys, Stony Brook, NY 11794 USA.
RP Savard, G (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Sprouse, Gene/C-3397-2009; Crawford, John/A-3771-2012; Heinz,
   Andreas/E-3191-2014
NR 5
TC 103
Z9 104
U1 1
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 582
EP 586
DI 10.1016/S0168-583X(02)02134-1
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700097
ER

PT J
AU Batchelder, JC
   Bilheux, JC
   Bingham, CR
   Carter, HK
   Cole, JD
   Fong, D
   Garrett, PE
   Grzywacz, R
   Hamilton, JH
   Hartley, DJ
   Hwang, JK
   Krolas, W
   Kulp, D
   Larochelle, Y
   Piechaczek, A
   Ramayya, AV
   Rykaczewski, KP
   Spejewski, EH
   Stracener, DW
   Tantawy, MN
   Winger, JA
   Wood, J
   Zganjar, EF
AF Batchelder, JC
   Bilheux, JC
   Bingham, CR
   Carter, HK
   Cole, JD
   Fong, D
   Garrett, PE
   Grzywacz, R
   Hamilton, JH
   Hartley, DJ
   Hwang, JK
   Krolas, W
   Kulp, D
   Larochelle, Y
   Piechaczek, A
   Ramayya, AV
   Rykaczewski, KP
   Spejewski, EH
   Stracener, DW
   Tantawy, MN
   Winger, JA
   Wood, J
   Zganjar, EF
TI The CARDS array for neutron-rich decay spectroscopy at HRIBF
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
ID STATE
AB An array for decay studies of neutron-rich nuclei has been commissioned for use at the UNISOR separator at Holifield Radioactive Ion Beam Facility. This array consists of three segmented clover Ge detectors, plastic scintillators, and a high-resolution (similar to1 keV) Si conversion electron spectrometer. These detectors are mounted on a support that surrounds a moving tape collector. This system has been named clover array for radioactive decay studies. The detectors have been outfitted with digital flash ADCs (XIA DGFs) that fit the preamp signals, with built-in pileup rejection. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Oak Ridge Associated Univ, ORNL, JIHIR, UNIRIB, Oak Ridge, TN 37831 USA.
   Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
   Univ Tennessee, Knoxville, TN 37996 USA.
   Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA.
   Vanderbilt Univ, Nashville, TN 37235 USA.
   Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
   Georgia Inst Technol, Atlanta, GA 30332 USA.
   Louisiana State Univ, Baton Rouge, LA 70803 USA.
   Mississippi State Univ, Mississippi State, MS 39762 USA.
RP Batchelder, JC (reprint author), Oak Ridge Associated Univ, ORNL, JIHIR, UNIRIB, POB 2008,Bldg 6008, Oak Ridge, TN 37831 USA.
RI Krolas, Wojciech/N-9391-2013; Bilheux, Jean/A-2823-2016
OI Bilheux, Jean/0000-0003-2172-6487
NR 4
TC 11
Z9 11
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 625
EP 628
DI 10.1016/S0168-583X(02)02141-9
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700104
ER

PT J
AU Grzywacz, R
AF Grzywacz, R
TI Applications of digital pulse processing in nuclear spectroscopy
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE charged-particle spectroscopy; X- and gamma-ray spectroscopy; computer
   data analysis
ID GAMMA-RAY SPECTROSCOPY; PARTICLE IDENTIFICATION; GE DETECTORS;
   PERFORMANCE; ISOMER; DECAY; FE-45
AB Data acquisition systems for nuclear spectroscopy have traditionally been based on hybrid systems with analog shaping amplifiers followed by analog-to-digital converters. Recently, however, new systems based on digital signal processing concepts have been developed. For example, one specific design, the Digital Gamma Finder (DGF-4C), has been used extensively for particle- and gamma-spectroscopy of nuclei far from stability. Using the DGF-4C, a variety of data acquisition systems have been implemented and used for measurements with semiconductor and scintillator detectors at recoil separators like the RMS at ORNL, the FRS at GSI and LISE at GANIL. Some novel features and unique advantages, such as trigger-less operation and pulse shape recording, are discussed in the context of selected studies. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 ORNL, Div Phys, Oak Ridge, TN 37830 USA.
   Univ Warsaw, IFD, PL-00681 Warsaw, Poland.
RP Grzywacz, R (reprint author), ORNL, Div Phys, POB 2008, Oak Ridge, TN 37830 USA.
NR 28
TC 66
Z9 67
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 649
EP 659
DI 10.1016/S0168-583X(02)02146-8
PG 11
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700109
ER

PT J
AU Svensson, CE
   Austin, RAE
   Ball, GC
   Finlay, P
   Garrett, PE
   Grinyer, GF
   Hackman, GS
   Osborne, CJ
   Sarazin, F
   Scraggs, HC
   Smith, MB
   Waddington, JC
AF Svensson, CE
   Austin, RAE
   Ball, GC
   Finlay, P
   Garrett, PE
   Grinyer, GF
   Hackman, GS
   Osborne, CJ
   Sarazin, F
   Scraggs, HC
   Smith, MB
   Waddington, JC
TI Radioactive beam experiments with large gamma-ray detector arrays
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related to their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Prov Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE gamma-ray spectrometers; radioactive ion beams
ID SPECTROMETER; SPECTROSCOPY; PERFORMANCE; DECAY
AB High-resolution gamma-ray spectroscopy is one of the most powerful and versatile experimental techniques in low-energy nuclear physics research. With the continuing development of hyper-pure germanium (HPGe) detector technology, including multi-crystal detectors, contact segmentation, and digital signal processing techniques, large gamma-ray detector arrays will continue to play a major role in the experimental programs at existing and future radioactive ion beam facilities. This paper provides an overview of recent progress in, and future plans for, the development of large gamma-ray spectrometers at such facilities, including the recent commissioning of the 8pi spectrometer at ISAC-I and the proposed TRIUMF-ISAC gamma-ray escape suppressed spectrometer array for the ISAC-II facility. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada.
   McMaster Univ, Dept Phys & Astron, Hamilton, ON L8S M41, Canada.
   TRIUMF, Vancouver, BC V6T 2A3, Canada.
   Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
RP Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada.
EM sven@physics.uoguelph.ca
OI Smith, Martin/0000-0003-0834-1574
NR 23
TC 46
Z9 46
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 660
EP 665
DI 10.1016/S0168-583X(02)02147-X
PG 6
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700110
ER

PT J
AU Kiefl, RF
   MacFarlane, WA
   Amaudruz, P
   Arseneau, D
   Baartman, R
   Beals, TR
   Behr, J
   Brewer, J
   Daviel, S
   Hatakeyama, A
   Hitti, B
   Kreitzman, SR
   Levy, CDP
   Miller, R
   Olivo, M
   Poutissou, R
   Morris, GD
   Dunsiger, SR
   Heffner, R
   Chow, KH
   Hirayama, Y
   Izumi, H
   Bommas, C
   Dumont, E
   Greene, LH
AF Kiefl, RF
   MacFarlane, WA
   Amaudruz, P
   Arseneau, D
   Baartman, R
   Beals, TR
   Behr, J
   Brewer, J
   Daviel, S
   Hatakeyama, A
   Hitti, B
   Kreitzman, SR
   Levy, CDP
   Miller, R
   Olivo, M
   Poutissou, R
   Morris, GD
   Dunsiger, SR
   Heffner, R
   Chow, KH
   Hirayama, Y
   Izumi, H
   Bommas, C
   Dumont, E
   Greene, LH
TI Low energy spin polarized radioactive beams as a probe of thin films and
   interfaces
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE beta-NMR; radioactive ion beams; nuclear probes
ID SURFACE
AB A spectrometer for beta-detected nuclear magnetic resonance (beta-NMR) has been commissioned at the ISAC facility at TRIUMF. A beam of low energy highly spin polarized Li-8(+) can be decelerated and implanted into ultra-thin structures 6-400 nm thick. beta-NMR provides local information on the electronic and magnetic properties of materials which is similar to conventional NMR but can be used as a sensitive probe of ultra-thin films, interfaces and other nano-structures. We report here on the status of the spectrometer and preliminary results on a simple,metal film. (C) 2003 Published by Elsevier Science B.V.
C1 TRIUMF, CIAR, Dept Chem, Vancouver, BC V6T 2A3, Canada.
   Univ BC, Dept Phys & Astron, Vancouver, BC V6T 2A3, Canada.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada.
   Osaka Univ, Dept Phys, Grad Sch Sci, Osaka 5600043, Japan.
   Univ Bonn, Dept Phys, D-5300 Bonn, Germany.
   Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
RP Kiefl, RF (reprint author), TRIUMF, CIAR, Dept Chem, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada.
RI Baartman, Richard/I-8146-2012; Hatakeyama, Atsushi/E-6810-2013; 
OI Hatakeyama, Atsushi/0000-0002-0196-0375; Brewer, Jesse
   H./0000-0002-8211-1235
NR 9
TC 6
Z9 6
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 682
EP 688
DI 10.1016/S0168-583X(03)00479-8
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700114
ER

PT J
AU Levy, CDP
   Hatakeyama, A
   Hirayama, Y
   Kiefl, RF
   Baartman, R
   Behr, JA
   Izumi, H
   Melconian, D
   Morris, GD
   Nussbaumer, R
   Olivo, M
   Pearson, M
   Poutissou, R
   Wight, GW
AF Levy, CDP
   Hatakeyama, A
   Hirayama, Y
   Kiefl, RF
   Baartman, R
   Behr, JA
   Izumi, H
   Melconian, D
   Morris, GD
   Nussbaumer, R
   Olivo, M
   Pearson, M
   Poutissou, R
   Wight, GW
TI Polarized radioactive beam at ISAC
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE radioactive beam; nuclear spin polarization; collinear optical pumping;
   Ti : sapphire laser
AB The polarized beam line at ISAC relies on the well known technique of collinear optical pumping to polarize the nuclear spins of a low energy (10-60 keV) radioactive beam. Alkali-metal beams are longitudinally polarized by optical pumping of a fast atomic beam, which is created by charge exchange of the incident ion beam in a Na vapour cell. At ISAC, the beam is then reionized in a He gas target and directed to the experiments. To date, 30 keV beams of Li-8 and Li-9 have been polarized, and Li-11 and Na-20 beams are scheduled immediately following this conference. The polarization of the Li-8 beam, using a dual frequency, standing wave Ti:sapphire laser, is up to similar to80%. High polarization is achieved by matching the laser bandwidth to the energy spread in the beam. The status of the facility is reported. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 TRIUMF, Vancouver, BC V6T 2A3, Canada.
   Osaka Univ, Dept Phys, Grad Sch Sci, Osaka 5600043, Japan.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Levy, CDP (reprint author), TRIUMF, 4004 Wesbrook Mall, Vancouver, BC V6T 2A3, Canada.
RI Baartman, Richard/I-8146-2012; Melconian, Dan/A-1331-2011; Hatakeyama,
   Atsushi/E-6810-2013
OI Melconian, Dan/0000-0002-0142-5428; Hatakeyama,
   Atsushi/0000-0002-0196-0375
NR 7
TC 23
Z9 23
U1 1
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 689
EP 693
DI 10.1016/S0168-583X(03)00485-3
PG 5
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700115
ER

PT J
AU Moore, ID
   Bailey, K
   Lu, ZT
   Muller, P
   O'Connor, TP
   Young, L
AF Moore, ID
   Bailey, K
   Lu, ZT
   Muller, P
   O'Connor, TP
   Young, L
TI Towards ultrahigh sensitivity analysis of Ca-41
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related the their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Provincial Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE atom trap trace analysis (ATTA); magneto-optical trap; Ca-41
ID MAGNETOOPTICAL TRAP; BONE-RESORPTION; ATOMS; TRACER
AB An atom trap trace analysis system based on the technique of laser manipulation of neutral atoms is being developed to count individual Ca-41 atoms present in natural samples with an isotopic abundance of 10(-15). Trapping of all stable calcium isotopes has been demonstrated and single-atom counting has been realized. For the most abundant isotope, Ca-40 (97% isotopic abundance), a magneto-optical trap loading rate of 2 x 10(10) atoms/s has been reached at the overall capture efficiency of 1 x 10(-4). System improvements could increase the efficiency by at least an order of magnitude. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
   Argonne Natl Lab, Div Chem, Argonne, IL 60439 USA.
RP Lu, ZT (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave,Bldg 203, Argonne, IL 60439 USA.
RI Mueller, Peter/E-4408-2011; Moore, Iain/D-7255-2014
OI Mueller, Peter/0000-0002-8544-8191; Moore, Iain/0000-0003-0934-8727
NR 13
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 701
EP 704
DI 10.1016/S0168-583X(03)00490-7
PG 4
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700117
ER

PT J
AU Savard, G
AF Savard, G
TI Status of the R&D for the rare isotope accelerator project
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM
   INTERACTIONS WITH MATERIALS AND ATOMS
LA English
DT Article; Proceedings Paper
CT 14th International Conference on Electromagnetic Isotope Separators and
   Techniques Related to their Applications
CY MAY 06-10, 2002
CL VICTORIA, CANADA
SP TRIUMF, Nat Sci & Engn Res Council Canada, Prov Govt British Columbia, Simon Fraser Univ, Canberra, Dehnel Consulting, Gamble Technol, MDS Nordion, SCIONIX, UMA Grp, VARIAN
DE radio frequency quadrupole; superconducting linac; charge stripper;
   source of radioactive nuclei
ID SUPERCONDUCTING LINAC; BEAMS; DESIGN
AB A next generation radioactive beam facility, the Rare Isotope Accelerator (RIA), is in preparation in the US. RIA aims at producing intense beams of radioactive isotopes and providing them to experimental stations with energy variable from ion source energy to a few hundred MeV/u. To perform this task, RIA will use standard ISOL and fragmentation techniques together with novel approaches combining advantages of both techniques to obtain high quality beams of the produced isotopes at all energy regimes.
   RIA will use these approaches in combination with a novel 400 kW superconducting heavy-ion driver linac to produce the activity and a very efficient post-acceleration scheme based on low-frequency RFQs injecting an ATLAS-like superconducting linac to obtain maximum intensity and excellent beam quality at the experimental stations. The development of the RIA concept required new ideas and significant technical advances. The technical issues with this versatile high-power facility and their present solutions will be presented together with the present status of the R&D efforts and the performance obtained with various prototypes that have been completed. Published by Elsevier Science B.V.
C1 Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
RP Savard, G (reprint author), Argonne Natl Lab, Div Phys, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM savard@phy.anl.gov
NR 21
TC 7
Z9 7
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-583X
EI 1872-9584
J9 NUCL INSTRUM METH B
JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms
PD MAY
PY 2003
VL 204
BP 771
EP 779
DI 10.1016/S0168-583X(03)00501-9
PG 9
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
   Atomic, Molecular & Chemical; Physics, Nuclear
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA 682BP
UT WOS:000183070700128
ER

PT J
AU Edwards, R
   Negele, J
   Richards, D
AF Edwards, R
   Negele, J
   Richards, D
TI Proceedings of The XXth International Symposium on Lattice Field Theory
   Cambridge, MA, USA 24-29 June 2002 - Preface
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Editorial Material
C1 Jefferson Lab, Newport News, VA 23606 USA.
   MIT, Cambridge, MA 02139 USA.
NR 0
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP V
EP V
DI 10.1016/S0920-5632(03)01486-5
PG 1
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100001
ER

PT J
AU Kharzeev, D
AF Kharzeev, D
TI What are we learning from RHIC?
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID HEAVY-ION COLLISIONS; CENTRAL AU+AU COLLISIONS; QUARK-GLUON PLASMA;
   HIGH-DENSITY QCD; ROOT-S(NN)=130 GEV; ELLIPTIC FLOW; AZIMUTHAL
   ASYMMETRY; HADRON-PRODUCTION; ENERGY; DISTRIBUTIONS
C1 Brookhaven Natl Lab, Dept Phys, Nucl Theory Grp, Upton, NY 11973 USA.
RP Brookhaven Natl Lab, Dept Phys, Nucl Theory Grp, Upton, NY 11973 USA.
NR 35
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 13
EP 21
DI 10.1016/S0920-5632(03)01488-9
PG 9
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100003
ER

PT J
AU Draper, T
   Dong, SJ
   Horvath, I
   Lee, F
   Liu, KF
   Mathur, N
   Zhang, JB
AF Draper, T
   Dong, SJ
   Horvath, I
   Lee, F
   Liu, KF
   Mathur, N
   Zhang, JB
TI Quenched chiral log and light quark mass from overlap fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID DIRAC OPERATOR; LATTICE; QCD; RENORMALIZATION
AB We study the quenched chiral behavior of the pion with mass as low as approximate to 180 MeV. The calculation is done on a quenched lattice of size 16(3) x 28 and a = 0.2 fm with 80 configurations using overlap fermions and an improved gauge action. Using an improved constrained curve fitting technique, we find that the ground state pseudoscalar mass versus bare quark mass behavior is well controlled with small statistical errors; this permits a reliable fit of the quenched chiral log effects, a determination of the chiral log parameter (delta = 0.26(3)), and an estimate of the renormalized mass of the light quark (m(MS)(mu = 2 GeV) = 3.7(3) MeV).
C1 Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
   George Washington Univ, Dept Phys, Ctr Nucl Studies, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Univ Adelaide, CSSM, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
RP Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 18
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 239
EP 241
DI 10.1016/S0920-5632(03)01513-5
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100028
ER

PT J
AU Bardeen, W
   Eichten, E
   Thacker, H
AF Bardeen, W
   Eichten, E
   Thacker, H
TI Low energy chiral Lagrangian parameters for scalar and pseudoscalar
   mesons
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB We present results of a high-statistics study of scalar and pseudoscalar meson propagators in quenched QCD at two values of lattice spacing, beta = 5.7 and 5.9, with clover-improved Wilson fermions. The study of the chiral limit is facilitated by the pole-shifting ansatz of the modified quenched approximation. Pseudoscalar masses and decay constants axe determined as a function of quark mass and quenched chiral log effects are estimated. A study of the flavor singlet eta' hairpin diagram yields a precise determination of the eta' mass insertion. The corresponding value of the quenched chiral log parameter delta is compared with the observed QCL effects. Removal of QCL effects from the scalar propagator allows a determination of the mass of the lowest lying isovector scalar q (q) over bar meson.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA.
RP Bardeen, W (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 5
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 242
EP 244
DI 10.1016/S0920-5632(03)01514-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100029
ER

PT J
AU Dong, SJ
   Draper, T
   Horvath, I
   Lee, FX
   Mathur, N
   Zhang, JB
AF Dong, SJ
   Draper, T
   Horvath, I
   Lee, FX
   Mathur, N
   Zhang, JB
TI Empirical Baye's method and tests in very light quark range from the
   overlap lattice QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB Based on Bayesian theorem an empirical Baye's method is discussed. A programming chart for mass spectrum fitting is suggested. A weak constrained way for getting priors to solve the chiral log data fitting singularity is tested.
C1 Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
   George Washington Univ, Ctr Nucl Studies, Dept Phys, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Univ Adelaide, CSSM, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
RP Dong, SJ (reprint author), Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
NR 8
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 248
EP 250
DI 10.1016/S0920-5632(03)01516-0
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100031
ER

PT J
AU Christensen, J
   Lee, RX
   Wilcox, W
   Zhou, LM
AF Christensen, J
   Lee, RX
   Wilcox, W
   Zhou, LM
TI Electric polarizability of hadrons
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID FREE COMPTON-SCATTERING; CROSS-SECTIONS; NEUTRON; DEUTERON; NUCLEON
AB The electric polarizability of a hadron allows an external electric field to shift the hadron mass. We try to calculate the electric polarizability for several hadrons from their quadratic response to the field at a = 0.17fm using an improved gauge field and the clover quark action. Results are compared to experiment where available.
C1 McMurry Univ, Dept Phys, Abilene, TX 79697 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
   Baylor Univ, Dept Phys, Waco, TX 76798 USA.
RP Christensen, J (reprint author), McMurry Univ, Dept Phys, Abilene, TX 79697 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 12
TC 7
Z9 7
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 269
EP 271
DI 10.1016/S0920-5632(03)01523-8
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100038
ER

PT J
AU Zhou, L
   Lee, FX
   Wilcox, W
   Christensen, J
AF Zhou, L
   Lee, FX
   Wilcox, W
   Christensen, J
TI Magnetic polarizability of hadrons from lattice QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID COMPTON-SCATTERING; ELECTROMAGNETIC POLARIZABILITIES; PROTON; DEUTERON;
   MODEL
AB We extract the magnetic polarizability from the quadratic response of a hadron's mass shift in progressively small static magnetic fields. The calculation is done on a 24 x 12 x 12 x 24 lattice at a = 0.17 fm with an improved gauge action and the clover quark action. The results are compared to those from experiments and models where available.
C1 George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Baylor Univ, Dept Phys, Waco, TX 76798 USA.
   McMurry Univ, Dept Phys, Abilene, TX 79697 USA.
RP Zhou, L (reprint author), George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 12
TC 13
Z9 13
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 272
EP 274
DI 10.1016/S0920-5632(03)01524-X
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100039
ER

PT J
AU Maynard, CM
   Richards, DG
AF Maynard, CM
   Richards, DG
CA UKQCD collaboration
   LHP collaboration
TI Excitations of the nucleon with dynamical fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID QCD
AB We measure the spectrum of low-lying nucleon resonances using Bayesian fitting methods. We compare the masses obtained in the quenched approximation to those obtained with two flavours of dynamical fermions at a matched lattice spacing. At the pion masses employed in our simulations, we find that the mass of the first positive-parity nucleon excitation is always greater than that of the parity partner of the nucleon.
C1 Univ Edinburgh, Sch Phys, JCMB, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Jefferson Lab, Newport News, VA 23606 USA.
RP Maynard, CM (reprint author), Univ Edinburgh, Sch Phys, JCMB, Kings Bldg, Edinburgh EH9 3JZ, Midlothian, Scotland.
NR 5
TC 8
Z9 8
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 287
EP 289
DI 10.1016/S0920-5632(03)01539-1
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100044
ER

PT J
AU Zanotti, JM
   Leinweber, DB
   Melnitchouk, W
   Williams, AG
   Zhang, JB
AF Zanotti, JM
   Leinweber, DB
   Melnitchouk, W
   Williams, AG
   Zhang, JB
TI Light quark simulations with FLIC fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID CONTINUUM-LIMIT; LATTICE QCD; IMPROVEMENT
AB Hadron masses are calculated in quenched lattice QCD in order to probe the scaling behavior of a novel fat-link clover fermion action in which only the irrelevant operators of the fermion action are constructed using APE-smeared links. Light quark masses providing a m(pi)/m(p) mass ratio of 0.35 are considered to assess the exceptional configuration problem of clover-fermion actions. This Fat-Link Irrelevant Clover (FLIC) fermion action provides scaling which is superior to mean-field improvement and offers advantages over non-perturbative improvement including a reduced exceptional configuration problem.
C1 Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
   Jefferson Lab, Newport News, VA 23606 USA.
RP Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
RI Zanotti, James/H-8128-2012; Williams, Anthony/I-6698-2012; Leinweber,
   Derek/J-6705-2013
OI Williams, Anthony/0000-0002-1472-1592; Zanotti,
   James/0000-0002-3936-1597; Leinweber, Derek/0000-0002-4745-6027
NR 18
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 290
EP 292
DI 10.1016/S0920-5632(03)01541-X
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100045
ER

PT J
AU Melnitchouk, W
   Hedditch, JN
   Leinweber, DB
   Williams, AG
   Zanotti, JM
   Zhang, JB
AF Melnitchouk, W
   Hedditch, JN
   Leinweber, DB
   Williams, AG
   Zanotti, JM
   Zhang, JB
TI Excited baryons from the FLIC fermion action
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID WILSON FERMIONS; LATTICE QCD; MASSES
AB Masses of positive and negative parity excited nucleons and hyperons are calculated in quenched lattice QCD using an O(a(2)) improved gluon action and a fat-link clover fermion action in which only the irrelevant operators are constructed with fat links. The results are in agreement with earlier N* simulations with improved actions, and exhibit a clear mass splitting between the nucleon and its parity partner, as well as a small mass splitting between the two low-lying J(P) = (1)/(-)(2) N* states. Study of different Lambda interpolating fields suggests a similar splitting between the lowest two (1)/(-)(2) Lambda* states, although the empirical mass suppression of the Lambda*(1405) is not seen.
C1 Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
   Jefferson Lab, Newport News, VA 23606 USA.
RP Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
RI Zanotti, James/H-8128-2012; Williams, Anthony/I-6698-2012; Leinweber,
   Derek/J-6705-2013; 
OI Zanotti, James/0000-0002-3936-1597; Leinweber,
   Derek/0000-0002-4745-6027; Williams, Anthony/0000-0002-1472-1592
NR 14
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 293
EP 295
DI 10.1016/S0920-5632(03)01542-1
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100046
ER

PT J
AU Lee, FX
   Dong, SJ
   Draper, T
   Horvath, I
   Liu, KF
   Mathur, N
   Zhang, JB
AF Lee, FX
   Dong, SJ
   Draper, T
   Horvath, I
   Liu, KF
   Mathur, N
   Zhang, JB
TI Excited baryons from Bayesian priors and overlap fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID QUARK-MODEL; SPECTRUM; QCD
AB Using the constrained-fitting method based on Bayesian priors, we extract the masses of the two lowest states of octet and decuplet baxyons with both parities. The calculation is done on quenched 16(3) x 28 lattices of a = 0.2 fm using an improved gauge action and overlap fermions, with the pion mass as low as 180 MeV. The Roper state N(1440)(1)/(+)(2) is clearly observed for the first time as the 1st-excited state of the nucleon from the standard interpolating field. Together with other baxyons, our preliminary results indicate that the level-ordering of the low-lying baryon states on the lattice is largely consistent with experiment. The realization is helped by cross-overs between the excited (1)/(+)(2) and (1)/(-)(2) states in the region of m(pi) similar to 300 to 400 MeV.
C1 George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
   Univ Adelaide, CSSM, Adelaide, SA 5005, Australia.
RP Lee, FX (reprint author), George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 19
TC 26
Z9 26
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 296
EP 298
DI 10.1016/S0920-5632(03)01543-3
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100047
ER

PT J
AU Zanotti, JM
   Choe, S
   Leinweber, DB
   Melnitchouk, W
   Williams, AG
   Zhang, JB
AF Zanotti, JM
   Choe, S
   Leinweber, DB
   Melnitchouk, W
   Williams, AG
   Zhang, JB
TI Spin-3/2 baryons in lattice QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID RESONANCES; SPECTRUM
AB We present first results for masses of spin-3/2 baryons in lattice QCD, using a novel fat-link clover fermion action in which only the irrelevant operators are constructed using fat links. In the isospin-1/2 sector, we observe, after appropriate spin and parity projection, a strong signal for the J(P) = 3/2(-) state, and find good agreement between the 1/2(+) mass and earlier nucleon mass simulations with a spin-1/2 interpolating field. For the isospin-3/2 Delta states, clear mass splittings are observed between the various 1/2(+/-) and 3/2(+/-) hannels, with the calculated level orderings in good agreement with those observed empirically.
C1 Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
   Hiroshima Univ, Dept Phys, Higashihiroshima 7398526, Japan.
   Jefferson Lab, Newport News, VA 23606 USA.
RP Special Res Ctr Subatom Struct Matter, Adelaide, SA 5005, Australia.
RI Choe, Seungho/B-1877-2008; Zanotti, James/H-8128-2012; Williams,
   Anthony/I-6698-2012; Leinweber, Derek/J-6705-2013
OI Williams, Anthony/0000-0002-1472-1592; Zanotti,
   James/0000-0002-3936-1597; Leinweber, Derek/0000-0002-4745-6027
NR 21
TC 0
Z9 0
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 299
EP 301
DI 10.1016/S0920-5632(03)01544-5
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100048
ER

PT J
AU Edwards, RG
   Heller, U
   Richards, D
AF Edwards, RG
   Heller, U
   Richards, D
CA LHP Collaboration
TI Spectroscopy using the anisotropic clover action
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB The calculation of the light-hadron spectrum in the quenched approximation to QCD using an anisotropic clover fermion action is presented. The tuning of the parameters of the action is discussed, using the pion and p dispersion relation. The adoption of an anisotropic lattice provides clear advantages in the determination of the baryonic resonances, and in particular that of the so-called Roper resonance, the lightest radial excitation of the nucleon.
C1 Jefferson Lab, Newport News, VA 23606 USA.
   Florida State Univ, CSIT, Tallahassee, FL 32306 USA.
RP Edwards, RG (reprint author), Jefferson Lab, MS 12H2,12000 Jefferson Ave, Newport News, VA 23606 USA.
OI Heller, Urs M./0000-0002-2780-5584
NR 6
TC 12
Z9 12
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 305
EP 307
DI 10.1016/S0920-5632(03)01525-1
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100050
ER

PT J
AU Noaki, J
AF Noaki, J
CA RBC Collaboration
TI Calculation of weak matrix elements in domain-wall QCD with the DBW2
   gauge action
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB We report the details of our ongoing quenched calculations of weak matrix elements using the combination of domain-wall fermions and the DBW2 gauge action on lattices with a(-1) approximate to 3 GeV. A strategy to avoid the problem of fixed topological charge is introduced in generating gauge configurations. After studying the basic run parameters and elemental quantities, we present a preliminary result for the kaon B-parameter (B-K).
C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Noaki, J (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
NR 7
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 362
EP 364
DI 10.1016/S0920-5632(03)01552-4
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100067
ER

PT J
AU Aoki, Y
AF Aoki, Y
CA RBC Collaboration
TI Nucleon decay matrix elements for domain-wall fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID LATTICE QCD; COMPUTATION
AB We report on the nucleon decay matrix elements with domain-wall fermions in quenched approximation. Results from direct and indirect method are compared with a focus on the process of a proton decaying to a pion and a lepton. We discuss the renormalization necessary for the matching to the continuum theory. Preliminary results for the renormalized chiral lagrangian parameters axe presented.
C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Aoki, Y (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
NR 9
TC 10
Z9 10
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 380
EP 382
DI 10.1016/S0920-5632(03)01560-3
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100073
ER

PT J
AU Orginos, K
AF Orginos, K
CA RBC Collaboration
TI Nucleon matrix elements with domain wall fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID GAUGE ACTION; LATTICE
AB We present the status of our calculation of the first few moments of the nucleon structure functions. Our calculations are done using domain wall fermions in the quenched approximation with the DBW2 gauge action at 1.3GeV inverse lattice spacing.
C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Orginos, K (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
OI Orginos, Kostas/0000-0002-3535-7865
NR 12
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 386
EP 388
DI 10.1016/S0920-5632(03)01562-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100075
ER

PT J
AU Ohta, S
AF Ohta, S
CA RBC Collaboration
TI Nucleon axial charge from quenched lattice QCD with domain wall fermions
   and DBW2 gauge action
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID WILSON FERMIONS; CHIRAL FERMIONS; RENORMALIZATION; PROTON; G(A)
AB The domain wall fermion (DWF) method, with its almost perfectly preserved chiral symmetry on the lattice, makes the calculation of the nucleon axial charge particularly easy. By maintaining chiral symmetry and using the Ward-Takahashi (WT) identity, one has Z(A) = Z(V) and the bare lattice calculation yields the physical value without explicit renormalization. The DBW2 improved gauge action provides further enhancement of the symmetry and hence a more accurate WT identity at coarse lattice spacing. Taking advantage of these methods, we confirmed a significant volume dependence of the nucleon axial charge on (1.2fm)(3) and (2.4fm)(3) lattice volumes.
C1 KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan.
   Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Ohta, S (reprint author), KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan.
OI Orginos, Kostas/0000-0002-3535-7865
NR 19
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 389
EP 391
DI 10.1016/S0920-5632(03)01563-9
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100076
ER

PT J
AU Dreher, P
   Brower, R
   Capitani, S
   Dolgov, D
   Edwards, R
   Eicker, N
   Heller, UM
   Lippert, T
   Negele, JW
   Pochinsky, A
   Renner, DB
   Schilling, K
AF Dreher, P
   Brower, R
   Capitani, S
   Dolgov, D
   Edwards, R
   Eicker, N
   Heller, UM
   Lippert, T
   Negele, JW
   Pochinsky, A
   Renner, DB
   Schilling, K
CA LHPC SESAM Collaborations
TI Continuum extrapolation of moments of nucleon quark distributions in
   full QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID LATTICE
AB Moments of light cone quark density, helicity, and transversity distributions are calculated in unquenched lattice QCD at beta = 5.5 and beta = 5.3 using Wilson fermions on 16(3) x 32 lattices. These results are combined with earlier calculations at beta = 5.6 using SESAM configurations to study the continuum limit.
C1 MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
   Boston Univ, Dept Phys, Boston, MA 02215 USA.
   DESY, John von Neumann Inst Comp, D-15738 Zeuthen, Germany.
   Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
   Univ Wuppertal, Dept Phys, D-42097 Wuppertal, Germany.
   Florida State Univ, CSIT, Tallahassee, FL 32306 USA.
RP MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
OI Heller, Urs M./0000-0002-2780-5584
NR 5
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 392
EP 394
DI 10.1016/S0920-5632(03)01564-0
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100077
ER

PT J
AU Del Debbio, L
   Di Pierro, M
   Dougall, A
AF Del Debbio, L
   Di Pierro, M
   Dougall, A
TI The second moment of the pion light cone wave function
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID DISTRIBUTION AMPLITUDE; EXCLUSIVE PROCESSES; LATTICE; QCD
AB We present a preliminary result for second moment of the light cone wave function of the pion. This parameter is the subject of a discrepancy between theoretical predictions (coming from lattice and sum rules) and a recent experimental result (that remarkably agrees with purely perturbative predictions). In this work we exploit lattice hypercubic symmetries to remove power divergences and, moreover, implement a full 1-loop matching for all the contributing operators.
C1 Univ Pisa, Dipartimento Fis, Pisa, Italy.
   Fermilab Natl Accelerator Lab, Naperville, IL 60563 USA.
   Univ Liverpool, Dept Math Sci, Liverpool L69 3BX, Merseyside, England.
RP Del Debbio, L (reprint author), Univ Pisa, Dipartimento Fis, Pzza Torricelli 2, Pisa, Italy.
OI Del Debbio, Luigi/0000-0003-4246-3305
NR 6
TC 25
Z9 25
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 416
EP 418
DI 10.1016/S0920-5632(03)01572-X
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100085
ER

PT J
AU Bhattacharya, T
   Fleming, GT
   Kilcup, G
   Gupta, R
   Lee, W
   Sharpe, S
AF Bhattacharya, T
   Fleming, GT
   Kilcup, G
   Gupta, R
   Lee, W
   Sharpe, S
TI Progress report on the staggered epsilon '/epsilon project
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID PERTURBATIVE CORRECTIONS; 4-FERMION OPERATORS; FLAVOR SYMMETRY
AB We report on progress and future plans for calculating kaon weak matrix elements for epsilon'/epsilon using staggered fermions.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
   Seoul Natl Univ, Sch Phys, Seoul 151747, South Korea.
   Univ Washington, Dept Phys, Seattle, WA 98195 USA.
RP Bhattacharya, T (reprint author), Los Alamos Natl Lab, MS-B285,T-8, Los Alamos, NM 87545 USA.
RI Bhattacharya, Tanmoy/J-8956-2013; Fleming, George/L-6614-2013
OI Bhattacharya, Tanmoy/0000-0002-1060-652X; Fleming,
   George/0000-0002-4987-7167
NR 15
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 428
EP 430
DI 10.1016/S0920-5632(03)01576-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100089
ER

PT J
AU Mason, Q
   Lepage, P
   Mackenzie, P
   Trottier, H
   Hein, J
   Davies, C
   Follana, E
AF Mason, Q
   Lepage, P
   Mackenzie, P
   Trottier, H
   Hein, J
   Davies, C
   Follana, E
TI Taste-changing in staggered quarks
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID FLAVOR-SYMMETRY RESTORATION
AB We present results from a systematic perturbative investigation of taste-changing in improved staggered quarks. We show one-loop taste-changing interactions can be removed perturbatively by an effective four-quark term and calculate the necessary coefficients.
C1 Cornell Univ, Lab Elementary Particle Phys, Ithaca, NY 14853 USA.
   Fermilab Natl Accelerator Lab, Theoret Phys Grp, Batavia, IL 60510 USA.
   Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
   Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland.
RP Mason, Q (reprint author), Cornell Univ, Lab Elementary Particle Phys, Ithaca, NY 14853 USA.
NR 6
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 446
EP 448
DI 10.1016/S0920-5632(03)01581-0
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100094
ER

PT J
AU Oktay, MB
   El-Khadra, AX
   Kronfeld, AS
   Mackenzie, PB
   Simone, JN
AF Oktay, MB
   El-Khadra, AX
   Kronfeld, AS
   Mackenzie, PB
   Simone, JN
TI A relativistic O(a(2)) improved action for heavy quarks
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID CONTINUUM-LIMIT; FERMIONS
AB We extend the Fermilab formalism for heavy quarks to develop an 0(a 2) improved relativistic action. We discuss our construction of the action, including the identification of redundant operators and the calculation of the improvement coefficients.
C1 Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Oktay, MB (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA.
OI Simone, James/0000-0001-8515-3337
NR 6
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 464
EP 466
DI 10.1016/S0920-5632(03)01587-1
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100100
ER

PT J
AU Nemoto, Y
AF Nemoto, Y
CA RBC collaboration
TI Effective potential for Polyakov loops in lattice QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB Toward the derivation of an effective theory for Polyakov loops in lattice QCD, we examine Polyakov loop correlation functions using the multi-level algorithm which was recently developed by Luscher and Weisz.
C1 Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Nemoto, Y (reprint author), Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 502
EP 504
DI 10.1016/S0920-5632(03)01596-2
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100111
ER

PT J
AU Kogut, JB
   Sinclair, DK
AF Kogut, JB
   Sinclair, DK
TI Lattice QCD at finite isospin chemical potential and temperature.
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID DENSITY
AB We simulate lattice QCD at a finite chemical potential mu(I) for isospin (I-3) at zero and finite temperatures. At some mu(I) = mu(c), QCD has a second order transition with mean-field critical exponents to a state where (I-3) is broken spontaneously by a charged pion condensate. Heating the system with mu(I) > mu(c) we find there is some temperature at which this condensate evaporates. This transition appears to be second order and mean-field at lower mu(I) values, and first order for mu(I) sufficiently large. We are determining the dependence of the finite temperature crossover T-c on mu(I) for mu(I) < mu(c). This is expected to be identical to T-c's dependence on quark-number chemical potential mu(q) for small mu(q).
C1 Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
   Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA.
RP Kogut, JB (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA.
NR 9
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 556
EP 558
DI 10.1016/S0920-5632(03)01619-0
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100128
ER

PT J
AU Kogut, JB
   Toublan, D
   Sinclair, DK
AF Kogut, JB
   Toublan, D
   Sinclair, DK
TI SU(2) lattice gauge theory at nonzero chemical potential and
   temperature.
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID FINITE BARYON DENSITY; QCD-LIKE THEORIES; 2 COLORS; 2-COLOR QCD
AB SU(2) lattice gauge theory with four flavors of quarks is simulated at nonzero chemical potential mu and temperature T and the results axe compared to the predictions of Effective Lagrangians. Simulations on 16(4) lattices indicate that at zero T the theory experiences a second order phase transition to a diquark condensate state which is well described by mean field theory. Nonzero T and mu are studied on 12(3) x 6 lattices. For low T, increasing It takes the system through a line of second order phase transitions to a diquark condensed phase. Increasing T at high mu, the system passes through a line of first order transitions from the diquark phase to the quark-gluon plasma phase.
C1 Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
   Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA.
RP Kogut, JB (reprint author), Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA.
NR 24
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 559
EP 561
DI 10.1016/S0920-5632(03)01620-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100129
ER

PT J
AU Di Pierro, M
   El-Khadra, A
   Gottlieb, S
   Kronfeld, AS
   Mackenzie, R
   Menscher, DR
   Oktay, MB
   Simone, JN
AF Di Pierro, M
   El-Khadra, A
   Gottlieb, S
   Kronfeld, AS
   Mackenzie, R
   Menscher, DR
   Oktay, MB
   Simone, JN
TI Charmonium with three flavors of dynamical quarks
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID LATTICE; FERMIONS
AB We present a calculation of the charmonium spectrum with three flavors of dynamical staggered quarks from gauge configurations that we're generated by the MILC collaboration. We use the Fermilab action for the valence charm quarks. Our calculation of the spin-averaged 1P-1S and 2S-1S splittings yields a determination of the strong coupling, with alpha(MS)(Mz) = 0.119(4).
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
   Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
RP Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA.
NR 16
TC 7
Z9 7
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 586
EP 591
DI 10.1016/S0920-5632(03)01627-X
PG 6
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100136
ER

PT J
AU Bernard, C
   Burch, T
   DeTar, CE
   Fu, ZW
   Gottlieb, S
   Gregory, E
   Heller, UM
   Osborn, J
   Sugar, RL
   Toussaint, D
AF Bernard, C
   Burch, T
   DeTar, CE
   Fu, ZW
   Gottlieb, S
   Gregory, E
   Heller, UM
   Osborn, J
   Sugar, RL
   Toussaint, D
CA MILC Collaboration
TI Static hybrid quarkonium potential with improved staggered quarks
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID FLAVOR-SYMMETRY RESTORATION; HYPERCUBIC BLOCKING; STRING BREAKING; ART.;
   MESONS
AB We are studying the effects of light dynamical quarks on the excitation energies of a flux tube between a static quark and antiquark. We report preliminary results of an analysis of the ground state potential and the Sigma'(+)(9) and Pi(u) potentials. We have measured these potentials on closely matched ensembles of gauge configurations, generated in the quenched approximation and with 2+1 flavors of Asqtad improved staggered quarks.
C1 Washington Univ, Dept Phys, St Louis, MO 63130 USA.
   Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
   Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
   Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Florida State Univ, CSIT, Tallahassee, FL 32306 USA.
   Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
RP Bernard, C (reprint author), Washington Univ, Dept Phys, St Louis, MO 63130 USA.
OI Heller, Urs M./0000-0002-2780-5584; DeTar, Carleton/0000-0002-0216-6771
NR 14
TC 7
Z9 7
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 598
EP 600
DI 10.1016/S0920-5632(03)01632-3
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100139
ER

PT J
AU Ryan, SM
   Kronfeld, AS
AF Ryan, SM
   Kronfeld, AS
TI Remark on the theoretical uncertainty in B-0-(B)over-bar(0) mixing
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID CHIRAL PERTURBATION-THEORY
AB We re-examine the theoretical uncertainty in the Standard Model expression for B-0-B-0 mixing. We focus on lattice calculations of the ratio xi, needed to relate the oscillation frequency of B-s(0)-B-s(0) mixing to V-td. We replace the usual linear chiral extrapolation with one that includes the logarithm that appears in chiral perturbation theory. We find a significant shift in the ratio xi, from the conventional 1.15 +/- 0.05 to xi = 1.32 +/- 0.10.
C1 Univ Dublin Trinity Coll, Sch Math, Dublin 2, Ireland.
   Fermilab Natl Accelerator Lab, Dept Theoret Phys, Batavia, IL 60510 USA.
RP Ryan, SM (reprint author), Univ Dublin Trinity Coll, Sch Math, Dublin 2, Ireland.
NR 11
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 622
EP 624
DI 10.1016/S0920-5632(03)01642-6
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100147
ER

PT J
AU Simone, JN
AF Simone, JN
TI Form factors for the semileptonic decay B ->pi lv
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB Previously published determinations for B --> pilv form factors are fit using a parameterization proposed by Becirevic and Kaidalov which incorporates physical constraints on the form factors. We check the consistency of the extrapolation to p(pi) = 0 by testing phenomenological expectations in the combined chiral and heavy quark limits. We then examine, how well current lattice results constrain the form factors in extrapolations to the maximum pion recoil limit.
C1 Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
RP Simone, JN (reprint author), Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 632
EP 634
DI 10.1016/S0920-5632(03)01608-6
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100150
ER

PT J
AU Gottlieb, S
   Tamhankar, S
AF Gottlieb, S
   Tamhankar, S
TI A lattice study of Lambda b semileptonic decay
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB We present results from a lattice study of the semileptonic decay Lambda(b) --> Lambda(c)lv(l). We use O(a(2),alpha(s)a(2)) improved quenched lattices of the MILC collaboration, with lattice spacing similar to 0.13 fm. For the valence quarks, the tadpole-improved clover action is used, with the Fermilab method employed for the heavy quarks. Form factors are extracted from the vector as well as the axial-vector part of the current.
C1 Indiana Univ, Bloomington, IN 47405 USA.
   Fermilab Natl Accelerator Lab, Theory Grp MS106, Batavia, IL 60510 USA.
RP Gottlieb, S (reprint author), Indiana Univ, Bloomington, IN 47405 USA.
NR 3
TC 8
Z9 8
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 644
EP 646
DI 10.1016/S0920-5632(03)01612-8
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100154
ER

PT J
AU Thacker, H
   Dong, SJ
   Draper, T
   Horvath, I
   Lee, FX
   Liu, KF
   Zhang, JB
AF Thacker, H
   Dong, SJ
   Draper, T
   Horvath, I
   Lee, FX
   Liu, KF
   Zhang, JB
TI Topological charge correlators, spectral bounds, and contact terms
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID LATTICE; QCD
AB The structure of topological charge fluctuations in the QCD vacuum is strongly restricted by the spectral negativity of the Euclidean correlator for x not equal 0 and the presence of a positive contact term. Some examples are considered which illustrate the physical origin of these properties.
C1 Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
   Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
   George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Univ Adelaide, CSSM, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
RP Thacker, H (reprint author), Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 9
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 685
EP 687
DI 10.1016/S0920-5632(03)01665-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100167
ER

PT J
AU Horvath, I
   Dong, SJ
   Draper, T
   Lee, FX
   Liu, KF
   Zhang, JB
   Thacker, HB
AF Horvath, I
   Dong, SJ
   Draper, T
   Lee, FX
   Liu, KF
   Zhang, JB
   Thacker, HB
TI The local structure of topological charge fluctuations in QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB We introduce the Dirac eigenmode filtering of topological charge density associated with Ginsparg-Wilson fermions as a tool to investigate the local structure of topological charge fluctuations in QCD. The resulting framework is used to demonstrate that the bulk of topological charge in QCD does not appear in the form of unit quantized lumps. This means that the mixing of "would-be" zeromodes associated with such lumps is probably not the prevalent microscopic mechanism for spontaneous chiral symmetry breaking in QCD. To characterize the coherent local behavior in topological charge density at low energy, we compute the charges contained in maximal coherent spheres enclosing non-overlapping peaks. We find a continuous distribution essentially ending at approximate to 0.5. Finally, we study, for the first time, the overlap-operator topological-charge- density-correlators and find consistency with non-positivity at nonzero physical distance. This represents a non-trivial check on the locality (in gauge paths) of the overlap Dirac operator for realistic gauge backgrounds.
C1 Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
   George Washington Univ, Ctr Nucl Studies, Washington, DC 20052 USA.
   Jefferson Lab, Newport News, VA 23606 USA.
   Univ Adelaide, CSSM, Adelaide, SA 5005, Australia.
   Univ Adelaide, Dept Phys & Math Phys, Adelaide, SA 5005, Australia.
   Univ Virginia, Dept Phys, Charlottesville, VA 22901 USA.
RP Horvath, I (reprint author), Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
OI Lee, Frank/0000-0001-8169-3440
NR 6
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 688
EP 690
DI 10.1016/S0920-5632(03)01666-9
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100168
ER

PT J
AU Izubuchi, T
AF Izubuchi, T
CA RBC collaboration
TI Lattice QCD with dynamical domain wall quarks
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID PHASE-TRANSITION; FERMIONS
AB We study lattice QCD with two flavors of dynamical domain wall quarks. With renormalization group motivated actions, we find chiral symmetry can be preserved to a high degree at lattice cut off of a(-1) similar to 2 GeV even for fifth dimension size as small as L-s = 12. In addition two new steps are introduced to improve the performance of the hybrid Monte Carlo simulation.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Izubuchi, T (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
NR 10
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 813
EP 815
DI 10.1016/S0920-5632(03)01688-8
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100203
ER

PT J
AU Prelovsek, S
   Orginos, K
AF Prelovsek, S
   Orginos, K
CA RBC Collaboration
TI Quenched scalar-meson correlator with Domain Wall Fermions
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID QCD
AB We study the (q) over barq singlet and non-singlet scalar-meson masses using domain wall fermions and the quenched approximation. The singlet mass is found to be smaller than the non-singlet mass and indicates that the lowest singlet meson state could be lighter than 1 GeV. The two-point functions for very small quark masses are compared with expectations from the small-volume chiral perturbation theory and the presence of fermionic zero modes.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
   RIKEN BNL Res Ctr, Upton, NY 11973 USA.
RP Prelovsek, S (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
OI Orginos, Kostas/0000-0002-3535-7865
NR 10
TC 21
Z9 21
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 822
EP 824
DI 10.1016/S0920-5632(03)01691-8
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100206
ER

PT J
AU Creutz, M
AF Creutz, M
TI Transiting topological sectors with the overlap
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID DIRAC OPERATOR; LATTICE
AB The overlap operator provides an elegant definition for the winding number of lattice gauge field configurations. Only for a set of configurations of measure zero is this procedure undefined. Without restrictions on the lattice fields, however, the space of gauge fields is simply connected. I present a simple low dimensional illustration of how the eigenvalues of a truncated overlap operator flow as one travels between different topological sectors.
C1 Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
RP Creutz, M (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA.
NR 7
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 837
EP 839
DI 10.1016/S0920-5632(03)01696-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100211
ER

PT J
AU Rupak, C
   Shoresh, N
AF Rupak, C
   Shoresh, N
TI Approaching the continuum limit using chiral perturbation theory
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID LATTICE QCD; O(A) IMPROVEMENT; WILSON FERMIONS
AB We extend chiral perturbation theory to include linear dependence on the lattice spacing a for the Wilson action. The perturbation theory is written as a double expansion in the small quark mass m(q) and lattice spacing a. We present formulae for the mass and decay constant of a flavor-non-singlet meson in this scheme to order a and m(q)(2). The extension to the partially quenched theory is also described.
C1 Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
   Boston Univ, Dept Phys, Boston, MA 02215 USA.
RP Rupak, C (reprint author), Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 849
EP 851
DI 10.1016/S0920-5632(03)01700-6
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100215
ER

PT J
AU Bernard, C
   Burch, T
   DeGrand, TA
   DeTar, CE
   Gottlieb, S
   Gregory, E
   Hasenfratz, A
   Heller, UM
   Hetrick, J
   Osborn, J
   Sugar, RL
   Toussaint, D
AF Bernard, C
   Burch, T
   DeGrand, TA
   DeTar, CE
   Gottlieb, S
   Gregory, E
   Hasenfratz, A
   Heller, UM
   Hetrick, J
   Osborn, J
   Sugar, RL
   Toussaint, D
CA MILC Collaboration
TI Topological susceptibility with the improved Asqtad action
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID FLAVOR-SYMMETRY RESTORATION; LATTICE QCD; ART.; QUARKS; SPECTRUM
AB As a test of the chiral properties of the improved Asqtad (staggered fermion) action, we have been measuring the topological susceptibility as a function of quark masses for 2 + 1 dynamical flavors. We report preliminary results, which show reasonable agreement with leading order chiral perturbation theory for lattice spacing less than 0.1 fm. The total topological charge, however, shows strong persistence over Monte Carlo time.
C1 Washington Univ, Dept Phys, St Louis, MO 63130 USA.
   Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
   Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
   Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA.
   Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
   Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
   Florida State Univ, CSIT, Tallahassee, FL 32306 USA.
   Univ Pacific, Stockton, CA 95211 USA.
   Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
RP Bernard, C (reprint author), Washington Univ, Dept Phys, St Louis, MO 63130 USA.
OI Hetrick, James/0000-0002-0740-2251; Heller, Urs M./0000-0002-2780-5584;
   DeTar, Carleton/0000-0002-0216-6771
NR 12
TC 4
Z9 4
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 991
EP 993
DI 10.1016/S0920-5632(03)01740-7
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100255
ER

PT J
AU Duncan, A
   Eichten, E
   Yoo, J
AF Duncan, A
   Eichten, E
   Yoo, J
TI Recent results using all-point quark propagators
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MA
SP Boston Univ Ctr Computat Sci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
ID CHIRAL PERTURBATION-THEORY; CORRELATORS
AB Pseudofermion methods for extracting all-point quark propagators are reviewed, with special emphasis on techniques for reducing or eliminating autocorrelations induced by low eigenmodes of-the quark Dirac operator. Recent applications, including high statistics evaluations of hadronic current correlators and the pion form factor, axe also described.
C1 Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
   Fermilab Natl Accelerator Lab, Theory Grp, Batavia, IL 60510 USA.
RP Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
EI 1873-3832
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 1018
EP 1020
DI 10.1016/S0920-5632(03)01749-3
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100264
ER

PT J
AU Boyle, PA
   Chen, D
   Christ, NH
   Cristian, C
   Dong, Z
   Gara, A
   Joo, B
   Jung, C
   Kim, C
   Levkova, L
   Liao, X
   Liu, G
   Mawhinney, RD
   Ohta, S
   Petrov, K
   Wettig, T
   Yamaguchi, A
AF Boyle, PA
   Chen, D
   Christ, NH
   Cristian, C
   Dong, Z
   Gara, A
   Joo, B
   Jung, C
   Kim, C
   Levkova, L
   Liao, X
   Liu, G
   Mawhinney, RD
   Ohta, S
   Petrov, K
   Wettig, T
   Yamaguchi, A
TI Status of and performance estimates for QCDOC
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB QCDOC is a supercomputer designed for high scalability at a low cost per node. We discuss the status of the project and provide performance estimates for large machines obtained from cycle accurate simulation of the QCDOC ASIC.
C1 Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
   Columbia Univ, Dept Phys, New York, NY 10027 USA.
   IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA.
   Inst Particle & Nucl Studies, KEK, Tsukuba, Ibaraki 3050801, Japan.
   Brookhaven Natl Lab, RIKEN, BNL Res Ctr, Upton, NY 11973 USA.
   Yale Univ, Dept Phys, New Haven, CT 06520 USA.
RP Boyle, PA (reprint author), Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland.
NR 2
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 1041
EP 1043
DI 10.1016/S0920-5632(03)01756-0
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100271
ER

PT J
AU Pochinsky, A
   Akers, W
   Brower, R
   Chen, J
   Dreher, P
   Edwards, R
   Gottlieb, S
   Holmgren, D
   Mackenzie, P
   Negele, J
   Richards, D
   Simone, J
   Watson, W
AF Pochinsky, A
   Akers, W
   Brower, R
   Chen, J
   Dreher, P
   Edwards, R
   Gottlieb, S
   Holmgren, D
   Mackenzie, P
   Negele, J
   Richards, D
   Simone, J
   Watson, W
TI Large scale commodity clusters for lattice QCD
SO NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS
LA English
DT Article; Proceedings Paper
CT 20th International Symposium on Lattice Field Theory
CY JUN 24-29, 2002
CL MIT, CAMBRIDGE, MASSACHUSETTS
SP Boston Univ Ctr Computat ci, Brookhaven Natl Lab, Fermilab, Hewlett Packard Co, Jefferson Lab, MIT Sch Sci, MIT Lab Nucl Sci, US DOE
HO MIT
AB We describe the construction of large scale clusters for lattice QCD computing being developed under the umbrella of the U.S. DoE SciDAC initiative. We discuss the study of floating point and network performance that drove the design of the cluster, and present our plans for future multi-Terascale facilities.
C1 MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
   Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA.
   Boston Univ, Dept Phys, Boston, MA 02215 USA.
   Indiana Univ, Dept Phys, Bloomington, IN 47405 USA.
   Fermi Natl Accelerator Ctr, Theory Grp, Batavia, IL 60510 USA.
RP Pochinsky, A (reprint author), MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA.
OI Simone, James/0000-0001-8515-3337; Holmgren, Donald/0000-0001-6701-7737
NR 2
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0920-5632
J9 NUCL PHYS B-PROC SUP
JI Nucl. Phys. B-Proc. Suppl.
PD MAY
PY 2003
VL 119
BP 1044
EP 1046
DI 10.1016/S0920-5632(03)01757-2
PG 3
WC Physics, Particles & Fields
SC Physics
GA 682CU
UT WOS:000183074100272
ER

PT J
AU Morel, JE
   Wareing, TA
   Lowrie, RB
   Parsons, DK
AF Morel, JE
   Wareing, TA
   Lowrie, RB
   Parsons, DK
TI Analysis of ray-effect mitigation techniques
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID NEUTRON-TRANSPORT EQUATION
AB We analyze three ray-effect mitigation techniques in two-dimensional x-y geometry. In particular, two angular finite element methods, and the modulated P-1-equivalent S-2 method, are analyzed It is found that these techniques give varying levels of ray-effect mitigation on certain traditional test problems, but all of them yield discrete-ray solutions for a line source in a void In general, it is shown that any transport angular discretization technique that results in a hyperbolic approximation for the directional gradient operator will yield a discrete-ray solution for a line source in a void Since the directional gradient operator is in fact hyperbolic, it is not surprising that many discretizations of the operator retain this property. For instance, our results suggest that both continuous and discontinuous angular finite element methods produce hyperbolic approximations. Our main conclusion is that the effectiveness of any hyperbolic ray-effect mitigation technique will necessarily be highly problem dependent. In particular, such techniques must fail in problems that have the most severe ray effects, i.e., those that are "similar" to a line source in a void.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Morel, JE (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA.
NR 15
TC 19
Z9 20
U1 0
U2 3
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD MAY
PY 2003
VL 144
IS 1
BP 1
EP 22
PG 22
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 666VD
UT WOS:000182196400001
ER

PT J
AU Smith, MA
   Tsoulfanidis, N
   Lewis, EE
   Palmiotti, G
   Taiwo, TA
AF Smith, MA
   Tsoulfanidis, N
   Lewis, EE
   Palmiotti, G
   Taiwo, TA
TI A finite subelement generalization of the variational nodal method
SO NUCLEAR SCIENCE AND ENGINEERING
LA English
DT Article
ID SPHERICAL-HARMONICS; EQUATIONS
AB The variational nodal method is generalized by dividing each spatial node into a number of triangular finite elements designated as subelements. The finite subelement trial functions allow for explicit geometry representations within each node, thus eliminating the need for nodal homogenization. The method is implemented within the Argonne National Laboratory code VARIANT and applied to two-dimensional multigroup problems.
   Eigenvalue and pin-power results are presented for a four-assembly Organization for Economic Cooperation and Development/Nuclear Energy Agency benchmark problem containing enriched UO2 and mixed oxide fuel pins. Our seven-group model combines spherical or simplified spherical harmonic approximations in angle with isoparametric linear or quadratic subelement basis functions, thus eliminating the need for fuel-coolant homogenization. Comparisons with reference seven-group Monte Carlo solutions indicate that in the absence of pin-cell homogenization, high-order angular approximations are required to obtain accurate eigenvalues, while the results are substantially less sensitive to the refinement of the finite subelement grids.
C1 Univ Missouri, Dept Nucl Engn, Rolla, MO 65409 USA.
   Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA.
   Argonne Natl Lab, Argonne, IL 60439 USA.
RP Smith, MA (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Lewis, Elmer/B-7597-2009
NR 14
TC 10
Z9 11
U1 0
U2 0
PU AMER NUCLEAR SOCIETY
PI LA GRANGE PK
PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60526 USA
SN 0029-5639
J9 NUCL SCI ENG
JI Nucl. Sci. Eng.
PD MAY
PY 2003
VL 144
IS 1
BP 36
EP 46
PG 11
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 666VD
UT WOS:000182196400003
ER

PT J
AU Thantu, N
   Schley, RS
   Justus, BL
AF Thantu, N
   Schley, RS
   Justus, BL
TI Tunable room temperature second harmonic generation in glasses doped
   with CuCl nanocrystalline quantum dots
SO OPTICS COMMUNICATIONS
LA English
DT Article
DE quantum dots; nanocrystals; nanoparticles; SHG; nonlinear optics
ID HARMONIC-GENERATION; RAYLEIGH-SCATTERING; 2-PHOTON EXCITATION; CONFINED
   EXCITONS; OPTICAL FIBERS; LUMINESCENCE; PROPAGATION; POLARITON; TIME
AB Two-photon excited emission centered at 379-426 nm in photodarkening borosilicate glass doped with CuCl nanocrystalline quantum dots at room temperature has been observed. The emission is detected in the direction of the fundamental near-infrared beam. Time- and frequency-resolved measurements at room temperature and 77 K indicate that the emission is largely coherent light characteristic of second harmonic generation (SHG). An average conversion efficiency of similar to10(-10) is obtained for a 2 mm thick sample. The observed SHG can originate in the individual noncentrosymmetric nanocrystals, leading to a bulk-like contribution, and at the nanocrystal-glass interface, leading to a surface contribution. The bulk-like conversion efficiency is estimated using previously reported values of coherence length (5 mum) and bulk nonlinear susceptibility. This bulk-like conversion efficiency estimate is found to be smaller than the measured value, suggesting a more prominent surface contribution. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Idaho Natl Lab, Idaho Falls, ID 83415 USA.
   USN, Div Opt Sci, Res Lab, Washington, DC 20375 USA.
RP Thantu, N (reprint author), XonTech Inc, 6862 Hayvenhurst Ave, Van Nuys, CA 91406 USA.
EM napoleon_thantu@xontech.com
RI Schley, Robert/B-9124-2017
OI Schley, Robert/0000-0001-8907-6535
NR 35
TC 5
Z9 6
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0030-4018
J9 OPT COMMUN
JI Opt. Commun.
PD MAY 1
PY 2003
VL 220
IS 1-3
BP 203
EP 210
DI 10.1016/S0030-4018(03)01356-7
PG 8
WC Optics
SC Optics
GA 676LJ
UT WOS:000182753300025
ER

PT J
AU Song, J
   Lu, DJ
   Wesely, ML
AF Song, J
   Lu, DJ
   Wesely, ML
TI A simplified atmospheric correction procedure for the normalized
   difference vegetation index
SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING
LA English
DT Article
ID SATELLITE DATA; SOLAR SPECTRUM; ALGORITHM; IMAGERY
AB Accurate corrections of the Normalized Difference Vegetation Index (NDVI) for atmospheric effects are currently based on modeling the physical behavior of radiation as it passes through the atmosphere. An important requirement for application of the physical models is detailed information on atmospheric humidity and particles. Here, a method is described for making atmospheric corrections without the need for detailed atmospheric observations. A simplified procedure for making atmospheric corrections to reflectances observed from satellites is developed by using the unique spectral signature of water pixels in satellite images. A radiative transfer model is applied to a variety of clear-sky conditions to generate functional relationships between the radiation due to the atmospheric scattering above water bodies and atmospheric radiative properties. Test cases indicate that the resulting estimates Of surface reflectances and NDVI agree well with estimates made using a radiative transfer model applied independently and with measurements made at the surface.
C1 No Illinois Univ, Dept Geog, De Kalb, IL 60115 USA.
   Jackson State Univ, Dept Phys Atmospher Sci & Gen Sci, Jackson, MS 39217 USA.
   Argonne Natl Lab, Div Environm Res, Argonne, IL 60439 USA.
RP Song, J (reprint author), No Illinois Univ, Dept Geog, De Kalb, IL 60115 USA.
EM jsong@geog.niu.edu; dlu@twister.jsums.edu
NR 26
TC 12
Z9 12
U1 0
U2 0
PU AMER SOC PHOTOGRAMMETRY
PI BETHESDA
PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 USA
SN 0099-1112
J9 PHOTOGRAMM ENG REM S
JI Photogramm. Eng. Remote Sens.
PD MAY
PY 2003
VL 69
IS 5
BP 521
EP 528
PG 8
WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing;
   Imaging Science & Photographic Technology
SC Physical Geography; Geology; Remote Sensing; Imaging Science &
   Photographic Technology
GA 817QZ
UT WOS:000221193300006
ER

PT J
AU Wilcox, R
AF Wilcox, R
TI Optical engineering for beam-matrix art
SO PHOTONICS SPECTRA
LA English
DT Article
C1 Lawrence Berkeley Natl Lab, El Cerrito, CA USA.
RP Wilcox, R (reprint author), Lawrence Berkeley Natl Lab, El Cerrito, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU LAURIN PUBL CO INC
PI PITTSFIELD
PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 USA
SN 0731-1230
J9 PHOTON SPECTRA
JI Photon. Spect.
PD MAY
PY 2003
VL 37
IS 5
BP 125
EP 128
PG 4
WC Optics
SC Optics
GA 673ZF
UT WOS:000182610800020
ER

PT J
AU Van Siclen, CD
AF Van Siclen, CD
TI Effective scalar properties of the critical region in functionally
   graded materials
SO PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
LA English
DT Article
DE functionally graded materials; effective properties; conductivity;
   percolation theory
ID WALKER DIFFUSION METHOD; TRANSPORT-PROPERTIES; CONDUCTIVITY; COMPOSITES;
   MODEL
AB The critical region in a compositionally graded material occurs where the dominant phase ceases to percolate, and so is poorly treated by effective medium theories. To address this problem, equations for the size and effective scalar properties of that region are obtained from percolation theory. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Idaho Natl Engn & Environm Lab, Idaho Falls, ID 83415 USA.
RP Van Siclen, CD (reprint author), Idaho Natl Engn & Environm Lab, POB 1625, Idaho Falls, ID 83415 USA.
NR 19
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-4371
J9 PHYSICA A
JI Physica A
PD MAY 1
PY 2003
VL 322
IS 1-4
BP 5
EP 12
DI 10.1016/SO378-4371(02)01910-6
PG 8
WC Physics, Multidisciplinary
SC Physics
GA 678VT
UT WOS:000182887900002
ER

PT J
AU Chitanvis, SM
AF Chitanvis, SM
TI Initiation of rapidly expanding supercritical fluids
SO PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
LA English
DT Article
ID DETONATION SHOCK DYNAMICS; DENSE GASES; FLOWS; WAVES
AB We consider the case when a supercritical fluid emerges at sonic speed from a small orifice in a high pressure chamber. The subsequent expansion causes a pressure drop and the fluid then enters a regime where its equation of state in P-V space becomes concave towards the origin. This is the signal for an expansion shock to occur in a non-ideal fluid, accompanied by absorption of the heat of Vaporization. An analytic calculation provides the shape and location of this anti-detonation front using Whitham's method. Dependence of the shape of the front on various operating conditions was calculated for the particular case of supercritical carbon dioxide. Our results provide an insight into the initiation of the rapid expansion of supercritical solutions, a process which is used in many manufacturing technologies. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Chitanvis, SM (reprint author), Los Alamos Natl Lab, Div Theoret, MS B268, Los Alamos, NM 87545 USA.
NR 26
TC 1
Z9 1
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-4371
J9 PHYSICA A
JI Physica A
PD MAY 1
PY 2003
VL 322
IS 1-4
BP 55
EP 72
AR PII S0378-4371(02)01550-9
DI 10.1016/S0378-4371(02)01550-9
PG 18
WC Physics, Multidisciplinary
SC Physics
GA 678VT
UT WOS:000182887900005
ER

PT J
AU Hayden, ME
   Archibald, G
   Barnes, PD
   Buttler, WT
   Clark, DJ
   Cooper, MD
   Espy, M
   Greene, GL
   Golub, R
   Lamoreaux, SK
   Lei, C
   Marek, LJ
   Peng, JC
   Penttila, S
AF Hayden, ME
   Archibald, G
   Barnes, PD
   Buttler, WT
   Clark, DJ
   Cooper, MD
   Espy, M
   Greene, GL
   Golub, R
   Lamoreaux, SK
   Lei, C
   Marek, LJ
   Peng, JC
   Penttila, S
TI Neutron radiography of helium II
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE superfluidity; diffusion; He-3-He-4 mixtures; neutron radiography;
   helium vapour compression (HEVAC) effect
ID HE-3
AB We have used a neutron radiography technique to investigate the spatial distribution of He-3 atoms in very dilute liquid He-3-He-4 mixtures at temperatures below the superfluid transition temperature. By imposing heat currents and monitoring the subsequent redistribution of He-3 within the sample volume we obtain a direct measurement of the relevant mass diffusion coefficient. Data from these experiments provides a striking demonstration of the manner in which the distribution of impurity atoms within the liquid can be influenced by the presence of a free surface. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Simon Fraser Univ, Dept Phys, Burnaby, BC V5A 1S6, Canada.
   Los Alamos Natl Lab, Div Phys, Los Alamos, NM 87545 USA.
   Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany.
   Univ Illinois, Urbana, IL 61801 USA.
RP Hayden, ME (reprint author), Simon Fraser Univ, Dept Phys, 8888 Univ Dr, Burnaby, BC V5A 1S6, Canada.
NR 7
TC 3
Z9 3
U1 1
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 236
EP 237
DI 10.1016/S0921-4526(02)01974-9
PG 2
WC Physics, Condensed Matter
SC Physics
GA 684UC
UT WOS:000183224100105
ER

PT J
AU Baumgardner, JE
   Polukhina, LV
   Lee, Y
   Poco, JF
   Hrubesh, LW
   Osheroff, DD
AF Baumgardner, JE
   Polukhina, LV
   Lee, Y
   Poco, JF
   Hrubesh, LW
   Osheroff, DD
TI NMR studies of superfluid He-3 in low density silica aerogels
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE superfluid He-3; aerogel; unconventional BCS states; impurity depairing
ID B-PHASE; STATE
AB Continuous wave NMR studies of superfluid He-3 in 99.4%, 98.7% and 98.3% porosity silica aerogels show similar phase diagrams, with an equal spin pairing (ESP) A-like state stab le near T-c,T-a, and a B-like phase stable at lower temperatures. On cooling through T-c,T-a, the sample magnetization and frequency shift show substantial supercooling of the A-like phase, with discontinuous changes to B-like behavior seen at about 0.64T(c,b) (bulk) for all samples. On warming, both the frequency shift and magnetization change continuously as the sample enters an ESP state. This suggests that this phase transition is broadened by pinning of the A-B interface on density fluctuations in the aerogel, even very close to T-c,T-a. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
   Lawrence Livermore Natl Labs, Livermore, CA 94550 USA.
RP Osheroff, DD (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
NR 12
TC 1
Z9 1
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 292
EP 295
DI 10.1016/S0921-4526(02)02057-4
PG 4
WC Physics, Condensed Matter
SC Physics
GA 684UC
UT WOS:000183224100130
ER

PT J
AU Thompson, JD
   Nicklas, M
   Bianchi, A
   Movshovich, R
   Llobet, A
   Bao, W
   Malinowski, A
   Hundley, MF
   Moreno, NO
   Pagliuso, PG
   Sarrao, JL
   Nakatsuji, S
   Fisk, Z
   Borth, R
   Lengyel, E
   Oeschler, N
   Sparn, G
   Steglich, F
AF Thompson, JD
   Nicklas, M
   Bianchi, A
   Movshovich, R
   Llobet, A
   Bao, W
   Malinowski, A
   Hundley, MF
   Moreno, NO
   Pagliuso, PG
   Sarrao, JL
   Nakatsuji, S
   Fisk, Z
   Borth, R
   Lengyel, E
   Oeschler, N
   Sparn, G
   Steglich, F
TI Magnetism and unconventional superconductivity in CenMmIn3n+2m
   heavy-fermion crystals
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE CenMmIn3n+2m; d-wave superconductivity; quantum criticality
ID CERHIN5; CEIRIN5; PRESSURE; CECOIN5; CEIN3; IR
AB We review magnetic, superconducting and non-Fermi-liquid properties of the structurally layered heavy-fermion compounds CenMmIn3n+2m (M = Co, Rh, Ir). These properties suggest d-wave superconductivity and proximity to an antiferromagetic quantum-critical point. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
   Florida State Univ, NHMFL, Tallahassee, FL 32310 USA.
   Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany.
RP Thompson, JD (reprint author), Los Alamos Natl Lab, MS K764, Los Alamos, NM 87545 USA.
RI Llobet, Anna/B-1672-2010; Pagliuso, Pascoal/C-9169-2012; Bao,
   Wei/E-9988-2011; Lujan Center, LANL/G-4896-2012; Moreno,
   Nelson/H-1708-2012; Sparn, Guenter/F-5120-2013; Nicklas,
   Michael/B-6344-2008; Malinowski, Artur/A-2184-2015; Bianchi,
   Andrea/E-9779-2010
OI Bao, Wei/0000-0002-2105-461X; Moreno, Nelson/0000-0002-1672-4340;
   Nicklas, Michael/0000-0001-6272-2162; Malinowski,
   Artur/0000-0003-3771-9353; Bianchi, Andrea/0000-0001-9340-6971
NR 54
TC 58
Z9 58
U1 2
U2 12
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 446
EP 449
DI 10.1016/S0921-4526(02)01987-7
PN 2
PG 4
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700002
ER

PT J
AU Zheng, GQ
   Kawasaki, S
   Yamaguchi, N
   Tanabe, K
   Mito, T
   Kan, H
   Kitaoka, Y
   Haga, Y
   Aoki, D
   Onuki, Y
   Sarrao, JL
   Thompson, JD
AF Zheng, GQ
   Kawasaki, S
   Yamaguchi, N
   Tanabe, K
   Mito, T
   Kan, H
   Kitaoka, Y
   Haga, Y
   Aoki, D
   Onuki, Y
   Sarrao, JL
   Thompson, JD
TI Magnetism and superconductivity in CeRhIn5 under chemical and
   hydrostatic pressures
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE heavy fermion; CeRhIn5; CeIrIn5; NQR; high pressure
ID CEIRIN5
AB Nuclear quadrupolar resonance measurements find that, under hydrostatic or chemical pressure, the heavy fermion antiferromagnet CeRhIn5 becomes more itinerant and the Neel temperature T-N increases slightly at low pressures but decreases at large pressures. In CeRh0.5Ir0.5In5, unconventional superconductivity sets in well below T-N, with enhanced T(c)approximate to1 K. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Osaka Univ, Grad Sch Engn Sci, Dept Phys Sci, Toyonaka, Osaka 5608531, Japan.
   JAEIRI, Adv Sci Res Ctr, Ibaraki 3191195, Japan.
   Osaka Univ, Dept Phys, Toyonaka, Osaka 5600043, Japan.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Zheng, GQ (reprint author), Osaka Univ, Grad Sch Engn Sci, Dept Phys Sci, Toyonaka, Osaka 5608531, Japan.
RI KAWASAKI, Shinji/B-2586-2011; Aoki, Dai/K-3673-2012; Zheng,
   Guo-qing/B-1524-2011
OI Aoki, Dai/0000-0003-2334-8360; 
NR 11
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 450
EP 451
DI 10.1016/S0921-4526(02)02001-X
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700003
ER

PT J
AU Koyama, T
   Mito, T
   Wada, S
   Sarrao, JL
AF Koyama, T
   Mito, T
   Wada, S
   Sarrao, JL
TI Spin fluctuations in heavy-fermion compounds YbZnCu4 and YbAuCu4,
   investigated by Cu-63 NMR/NQR
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE heavy fermion; spin fluctuations; ytterbium cuprate
AB We have investigated microscopically the heavy-fermion properties of YbZnCu4 and YbAuCu4 with Cu-63 NMR and PQR measurements. Both the isotropic and axial Knight shifts for each of the compounds showed a Curie-Weiss-type behavior, which is indicative of the localized Yb3+ moments. The nuclear spin-lattice relaxation rate (T1T)(-1) for YbZnCu4 above 1.4 K and for YbAuCu4 above similar to50 K was proportional to the uniform susceptibility chi, indicating that the correlation time tau(f)(-1) of Yb-spins is nearly independent of temperature. (T1T)(-1) for YbAuCu4 below similar to50 K exhibited a prominent increase associated probably with the decrease in tau(f)(-1) to the Kondo fluctuation rate tau(K)(-1) = k(B)T(K)/h. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Kobe Univ, Fac Sci, Grad Sch Sci & Technol, Dept Phys Mat, Kobe, Hyogo 6578501, Japan.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Koyama, T (reprint author), Kobe Univ, Fac Sci, Grad Sch Sci & Technol, Dept Phys Mat, Kobe, Hyogo 6578501, Japan.
NR 4
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 555
EP 556
DI 10.1016/S0921-4526(02)02404-3
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700052
ER

PT J
AU Hall, D
   Tozer, SW
   Palm, EC
   Murphy, TP
   Goodrich, RG
   Sarrao, JL
AF Hall, D
   Tozer, SW
   Palm, EC
   Murphy, TP
   Goodrich, RG
   Sarrao, JL
TI de Haas-van Alphen measurements on CeRhIn5 under pressure
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE de Haas-van Alphen; heavy fermions; superconductivity; high pressure
AB Measurements of the de Haas-van Alphen effect have been carried out on the heavy fermion anti-ferromagnet CeRhIn5 at temperatures between 25 and 500 mK under pressure. We present some preliminary results of our measurements to track the evolution of the Fermi surface as the pressure induced superconducting transition is approached. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Natl High Magnet Field Lab, Tallahassee, FL 32311 USA.
   Louisiana State Univ, Dept Phys, Baton Rouge, LA 70803 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Hall, D (reprint author), Amer Phys Soc, 1 Res Rd Box 9000, Ridge, NY 11961 USA.
NR 2
TC 1
Z9 1
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 584
EP 586
DI 10.1016/S0921-4526(02)02458-4
PN 2
PG 3
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700066
ER

PT J
AU Palm, EC
   Murphy, TP
   Hall, D
   Tozer, SW
   Goodrich, RG
   Sarrao, JL
AF Palm, EC
   Murphy, TP
   Hall, D
   Tozer, SW
   Goodrich, RG
   Sarrao, JL
TI Magnetic transitions in CeIrIn5
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE heavy fermions; metamagnetic transition; CeIrIn5
AB Results are presented on measurements of the magnetization of the heavy fermion superconductor CeIrIn5 at 45 mK and DC magnetic fields up to 45 T. A metamagnetic transition is clearly seen at 29.5 T that is qualitatively similar to metamagnetic transitions reported by other groups. In addition, we also find a second magnetic transition at higher fields that exhibits significant hysteresis and has a pronounced ferromagnetic-like character that has not previously been observed in CeIrIn5. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32306 USA.
   Louisiana State Univ, Baton Rouge, LA 70803 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Palm, EC (reprint author), Florida State Univ, Natl High Magnet Field Lab, 1800 E Paul Dirac Dr, Tallahassee, FL 32306 USA.
NR 3
TC 7
Z9 7
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 587
EP 588
DI 10.1016/S0921-4526(02)02459-6
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700067
ER

PT J
AU Almasan, CC
   Chen, XJ
   Zhang, CL
   Gardner, JS
   Sarrao, JL
AF Almasan, CC
   Chen, XJ
   Zhang, CL
   Gardner, JS
   Sarrao, JL
TI Electronic transport of bilayer manganite La1.2Sr1.8Mn2O7
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE colossal magnetoresistance; electronic transport; scattering mechanism
AB We report magnetoresistivity measurements on a La1.2Sr1.8Mn2O7 single crystal. The charge transport in the ferromagnetic phase is dominated by two-magnon scattering in the high T range and by weak localization effects at lower T, in the non-metallic regime. In the paramagnetic phase, rho(ab)(T) obeys the adiabatic small polaron hopping mechanism, while rho(c)(T) follows an Arrhenius behavior with the same activation energy. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Kent State Univ, Dept Phys, Kent, OH 44242 USA.
   Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Almasan, CC (reprint author), Kent State Univ, Dept Phys, Kent, OH 44242 USA.
RI Gardner, Jason/A-1532-2013
NR 11
TC 2
Z9 2
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 811
EP 812
DI 10.1016/S0921-4526(02)02582-6
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700174
ER

PT J
AU Tsukada, I
   Takeya, J
   Masuda, T
   Uchinokura, K
   Zheludev, A
AF Tsukada, I
   Takeya, J
   Masuda, T
   Uchinokura, K
   Zheludev, A
TI Anomalous two-stage spin-flop transition in BaCu2Si2O7
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE quasi one-dimensional; antiferromagnet; spin flop
ID CHAINS
AB Anomalous two-stage spin-flop transition in BaCu2Si2O7 was investigated in detail. This compound shows antiferromagnetic long-range order below T-N = 9.2 K with its c-axis as a spin easy axis. Magnetic field applied to the c direction induces spin-flop transitions twice; spins are first flopped roughly to the b-axis and next to the a-axis. This peculiar behavior is explained neither by the conventional spin-flop mechanism nor by the competition between inter-chain Heisenberg interactions and intra-chain Dzyaloshinskii-Moriya interactions as was previously proposed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Cent Res Inst Elect Power Ind, Tokyo 2018511, Japan.
   Univ Tokyo, Dept Adv Mat Sci, Bunkyo Ku, Tokyo 1138656, Japan.
   Oak Ridge Natl Lab, Div Solid State, Oak Ridge, TN 37831 USA.
RP Tsukada, I (reprint author), Cent Res Inst Elect Power Ind, Tokyo 2018511, Japan.
NR 7
TC 0
Z9 0
U1 2
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 886
EP 887
DI 10.1016/S0921-4526(02)02563-2
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700210
ER

PT J
AU Furukawa, Y
   Watanabe, K
   Kumagai, K
   Borsa, F
   Gatteschi, D
AF Furukawa, Y
   Watanabe, K
   Kumagai, K
   Borsa, F
   Gatteschi, D
TI Transverse magnetic field effects on the relaxation time of the
   magnetization in Mn12 measured by Mn-55-NMR
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE Mn12; quantum tunneling of the magnetization; NMR
ID HIGH-SPIN MOLECULES; CLUSTER; NMR
AB The longitudinal (H-Z) and transverse (H-T) magnetic field dependence of the relaxation time of the magnetization in Mn12 in its S = 10 ground state was measured by NMR. The minima in the relaxation time at the fields for level crossing are due to the quantum tunneling of the magnetization. The shortening of the relaxation time under the application of H-T is shown to be due mainly to the reduction of the energy barrier. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Hokkaido Univ, Grad Sch Sci, Div Phys, Sapporo, Hokkaido 0600180, Japan.
   Iowa State Univ, Dept Phys & Astron, Ames Lab, Ames, IA 50011 USA.
   Dipartimento Fis A Volta, I-271000 Pavia, Italy.
   Unita INFM Pavia, I-271000 Pavia, Italy.
   Univ Florence, Dept Chem, I-50144 Florence, Italy.
RP Furukawa, Y (reprint author), Hokkaido Univ, Grad Sch Sci, Div Phys, Sapporo, Hokkaido 0600180, Japan.
RI Gatteschi, Dante/B-5429-2008; 
OI Gatteschi, Dante/0000-0002-4859-4317
NR 9
TC 3
Z9 3
U1 0
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1146
EP 1147
DI 10.1016/S0921-4526(02)02050-1
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700333
ER

PT J
AU Bazaliy, YB
   Tsymbal, LT
   Linnik, AI
   Dan'shin, NK
   Izotov, AI
   Wigen, PE
AF Bazaliy, YB
   Tsymbal, LT
   Linnik, AI
   Dan'shin, NK
   Izotov, AI
   Wigen, PE
TI Peculiarities of spin reorientation in a thin YIG film
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE orientation phase transitions; thin magnetic films; garnets
AB The issue of magnetic orientation transitions in thin films combines interesting physics and importance for applications. We study the magnetic transition and phase diagram of a 0.1 mum thick (YLaGd)(3)(FeGa)(5)O-12 films grown on GGG substrate by liquid phase epitaxy. Observed transitions are compared with those in BiGa:TmIG thin films, studied in previous work by one of the authors. A general picture of orientation transitions in thin films of substituted YIG is discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
   Argonne Natl Lab, MSD, Argonne, IL 60439 USA.
   Natl Acad Sci Ukraine, O Galkin Donetsk Phys & Technol, UA-83114 Donetsk, Ukraine.
RP Tsymbal, LT (reprint author), Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA.
NR 6
TC 4
Z9 4
U1 1
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1257
EP 1258
DI 10.1016/S0921-4526(02)02216-0
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700388
ER

PT J
AU Bazaliy, YB
   Jones, BA
AF Bazaliy, YB
   Jones, BA
TI Magnetization rotation or generation of incoherent spin waves?
   Suggestions for a spin-transfer effect experiment
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE spintronics; spin-transfer effect; current induced switching
ID POLARIZED CURRENT; CO/CU/CO PILLARS; MULTILAYER; EXCITATION; REVERSAL
AB "Spin-transfer" torque is created when electric current is passed through metallic ferromagnets and may have interesting applications in spintronics. So far it was experimentally studied in "collinear" geometries, where it is difficult to predict whether magnetization will coherently rotate or spin-waves will be generated. Here we propose an easy modification of existing experiment in which the spin-polarization of incoming current will no longer be collinear with magnetization and recalculate the switching behavior of the device. We expect that a better agreement with the magnetization rotation theory will be achieved. That can be an important step in reconciling alternative points of view on the effect of spin-transfer torque. (C) 2003 Ya.B. Bazaliy. Published by Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, MSD, Argonne, IL 60439 USA.
   IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA.
RP Argonne Natl Lab, MSD, 9700 S Cass Ave, Argonne, IL 60439 USA.
EM yar@anl.gov
NR 20
TC 6
Z9 6
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
EI 1873-2135
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1290
EP 1291
DI 10.1016/S0921-4526(02)02248-2
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700404
ER

PT J
AU Welp, U
   Xiao, ZL
   Jiang, JS
   Vlasko-Vlasov, VK
   Bader, SD
   Crabtree, GW
   Liang, J
   Chik, H
   Xu, JM
AF Welp, U
   Xiao, ZL
   Jiang, JS
   Vlasko-Vlasov, VK
   Bader, SD
   Crabtree, GW
   Liang, J
   Chik, H
   Xu, JM
TI Vortex pinning in Nb films patterned with nano-scale hole-arrays
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE periodic pinning; superconducting networks
ID COLUMNAR DEFECTS; FLUX; LATTICES
AB Nb films containing extended arrays of holes with 45-nm diameter and 100-nm spacing have been fabricated using anodized aluminum oxide as substrate. Pronounced matching effects in the magnetization are seen in fields up to 9 kOe. Flux pinning in the patterned samples is enhanced by two orders of magnitude as compared to unpatterned reference samples in applied fields exceeding 5 kOe. The matching effects are a dominant contribution to vortex pinning at temperatures as low as 4.2 K due to the nano-scale spacing of the holes. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Argonne Natl Lab, Mat Sci Div, Argonne, IL 60439 USA.
   Brown Univ, Div Engn, Providence, RI 02912 USA.
   Brown Univ, Dept Phys, Providence, RI 02912 USA.
RP Welp, U (reprint author), Argonne Natl Lab, Mat Sci Div, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Bader, Samuel/A-2995-2013
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 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1338
EP 1339
DI 10.1016/S0921-4526(02)02174-9
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700424
ER

PT J
AU Paulius, LM
   Marcenat, C
   Tobos, V
   Undreiu, L
   Kwok, WK
   Klein, T
   Crabtree, GW
AF Paulius, LM
   Marcenat, C
   Tobos, V
   Undreiu, L
   Kwok, WK
   Klein, T
   Crabtree, GW
TI Irradiation-induced changes in the vortex phase diagram of YBCO
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE vortex phase diagram; flux lines; YBa2CU3O7; specific heat
ID UNTWINNED YBA2CU3O7-DELTA; OXYGEN DEFICIENCY; TRANSITIONS; CRYSTALS;
   DISORDER; POINT; STATE; LINE
AB We explored the vortex phase diagram of YBCO using electrical transport and AC specific heat measurements. The evolution of the phase diagram with increasing defect density and varying defect geometry is discussed, with particular emphasis on the lower critical point H-lep of the first-order vortex melting line. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
   DRFMC, SPSMS, LCP, Commissariat Energie Atom, F-38042 Grenoble, France.
   Argonne Natl Lab, Mat Sci Div, Argonne, IL 60439 USA.
   CNRS, F-38042 Grenoble, France.
RP Paulius, LM (reprint author), Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA.
EM paulius@wmich.edu
NR 12
TC 0
Z9 0
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1344
EP 1345
DI 10.1016/S0921-4526(02)02179-8
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700426
ER

PT J
AU Gapud, AA
   Christen, DK
   Thompson, JR
   Yethiraj, M
AF Gapud, AA
   Christen, DK
   Thompson, JR
   Yethiraj, M
TI Electrical transport, magnetic, and structural properties of the vortex
   lattice in superconducting V3Si
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE vortex lattice; metastability; peak effect; transport; SANS; flux
   pinning; V3Si
AB Electrical, magnetic, and structural properties of the vortex lattice (VL) in single crystal V3Si were studied by transport, bulk magnetometry and small-angle neutron scattering. Studies focused on the 'peak effect' in critical current density just below the upper critical field of this weak-pinning system. The overall picture is a slightly disordered VL easily re-ordered by transport-current 'shaking' and ultimately softening at the peak effect. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
   Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.
RP Thompson, JR (reprint author), Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
OI Gapud, Albert/0000-0001-9048-9230
NR 8
TC 1
Z9 1
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1363
EP 1364
DI 10.1016/S0921-4526(02)02234-2
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700435
ER

PT J
AU Vekhter, I
   Shytov, AV
   Gruzberg, IA
   Balatsky, A
AF Vekhter, I
   Shytov, AV
   Gruzberg, IA
   Balatsky, A
TI Tail states in superconductors with weak magnetic impurities
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE superconductivity; density of states; disordered superconductors;
   optimal fluctuation
AB We analyze the behavior of the density of states in a singlet s-wave superconductor with weak magnetic impurities in the clean limit by using the method of optimal fluctuation. We show that the density of states varies as In N(E) proportional to - \E - Delta(0)\((7-d)/4) near the mean field gap edge Delta(0) in a d-dimensional superconductor. The optimal fluctuation in d > 1 is strongly anisotropic. We compare the density of states with that obtained in other recent approaches. (C) 2002 Elsevier Science B.V. All rights reserved.
C1 Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
   Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA.
   MIT, Dept Phys, Cambridge, MA 02139 USA.
RP Vekhter, I (reprint author), Los Alamos Natl Lab, Div Theoret, MS B262, Los Alamos, NM 87545 USA.
RI Vekhter, Ilya/M-1780-2013; 
OI Shytov, Andrey/0000-0002-4674-8124
NR 6
TC 2
Z9 2
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1446
EP 1447
DI 10.1016/S0921-4526(02)02372-4
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700475
ER

PT J
AU Giuliani, A
   Arnaboldi, C
   Avignone, F
   Balata, M
   Barucci, M
   Beeman, J
   Brofferio, C
   Bucci, C
   Capelli, S
   Carbone, L
   Cebrian, S
   Cremonesi, O
   Creswick, RJ
   Farach, HA
   Fiorini, E
   Frossati, G
   Giugni, D
   Gorla, P
   Haller, EE
   Irastorza, IG
   McDonald, RJ
   Morales, A
   Negri, P
   Norman, EB
   Nucciotti, A
   Palmieri, V
   Pasca, E
   Pavan, M
   Pedretti, M
   Pessina, G
   Pirro, S
   Previtali, E
   Sisti, M
   Smith, AR
   Vanzini, M
   Ventura, G
   de Waard, A
   Zanotti, L
AF Giuliani, A
   Arnaboldi, C
   Avignone, F
   Balata, M
   Barucci, M
   Beeman, J
   Brofferio, C
   Bucci, C
   Capelli, S
   Carbone, L
   Cebrian, S
   Cremonesi, O
   Creswick, RJ
   Farach, HA
   Fiorini, E
   Frossati, G
   Giugni, D
   Gorla, P
   Haller, EE
   Irastorza, IG
   McDonald, RJ
   Morales, A
   Negri, P
   Norman, EB
   Nucciotti, A
   Palmieri, V
   Pasca, E
   Pavan, M
   Pedretti, M
   Pessina, G
   Pirro, S
   Previtali, E
   Sisti, M
   Smith, AR
   Vanzini, M
   Ventura, G
   de Waard, A
   Zanotti, L
TI CUORE: low-temperature techniques for neutrino physics
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE neutrino physics; bolometric detectors; low-temperature calorimeters
ID DOUBLE-BETA DECAY; DETECTORS
AB Neutrino physics represents today a hot topic in elementary particle physics, due to the observations of flavour oscillations both in the atmospheric and in the solar sector. This proves the existence of finite neutrino masses. In order to fix their absolute values, sensitive experiments on Neutrinoless Double Beta Decay (a rare nuclear process) must be carried on. The experiment here described, named Cryogenic's Underground Observatory for Rare Events (CUORE), can extend the neutrino mass sensitivity down to 30 meV. CUORE will consist of a large, closely packed, high-granularity array of 1000 tellurite (TeO2) IOW-temperature calorimeters, operated at 10 mK and with a total mass of 800 kg. The final structure of the detector and the preliminary tests are presented and discussed. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Insubria, Dept Sci, I-22100 Como, Italy.
   INFN Milano, Como, Italy.
   Univ Milano Bicocca, Dept Phys, Milan, Italy.
   INFN, Milan, Italy.
   Univ S Carolina, Dept Phys & Astron, Columbia, SC 29208 USA.
   INFN, Lab Nazl Gran Sasso, Laquila, Italy.
   Univ Zaragoza, Lab Nucl & High Energy Phys, Zaragoza, Spain.
   Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands.
   Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
   Univ Calif Berkeley, Dept Mat Sci & Mineral Engn, Berkeley, CA 94720 USA.
   INFN, Lab Nazl Legnaro, Legnaro, Padova, Italy.
   Univ Florence, Dept Phys, Florence, Italy.
RP Giuliani, A (reprint author), Univ Insubria, Dipartimento Sci Chim Fis & Matemat, I-22100 Como, Italy.
RI Nucciotti, Angelo/I-8888-2012; pavan, maura/J-9080-2012; Gorla,
   Paolo/B-5243-2014; Barucci, Marco/D-4209-2012; Sisti,
   Monica/B-7550-2013; capelli, silvia/G-5168-2012; Irastorza,
   Igor/B-2085-2012; 
OI Nucciotti, Angelo/0000-0002-8458-1556; Pessina, Gianluigi
   Ezio/0000-0003-3700-9757; Barucci, Marco/0000-0003-0381-3376; Sisti,
   Monica/0000-0003-2517-1909; capelli, silvia/0000-0002-0300-2752;
   Irastorza, Igor/0000-0003-1163-1687; pavan, maura/0000-0002-9723-7834
NR 10
TC 1
Z9 1
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1570
EP 1573
DI 10.1016/S0921-4526(02)02299-8
PN 2
PG 4
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700533
ER

PT J
AU Abrams, D
   Akerib, DS
   Armel-Funkhouser, MS
   Baudis, L
   Bauer, DA
   Brink, PL
   Bunker, R
   Cabrera, B
   Caldwell, DO
   Castle, JP
   Chang, CL
   Crisler, MB
   Dixon, R
   Driscoll, D
   Emes, JH
   Gaitskell, RJ
   Hellmig, J
   Holmgren, D
   Huber, ME
   Kamat, S
   Lu, A
   Mandic, V
   Martinis, JM
   Meunier, P
   Nelson, H
   Perera, TA
   Isaac, MCP
   Rau, W
   Ross, RR
   Saab, T
   Sadoulet, B
   Sander, J
   Schnee, RW
   Seitz, DN
   Shutt, T
   Smith, A
   Smith, GW
   Spadafora, AL
   Wang, G
   Yellin, S
   Young, BA
AF Abrams, D
   Akerib, DS
   Armel-Funkhouser, MS
   Baudis, L
   Bauer, DA
   Brink, PL
   Bunker, R
   Cabrera, B
   Caldwell, DO
   Castle, JP
   Chang, CL
   Crisler, MB
   Dixon, R
   Driscoll, D
   Emes, JH
   Gaitskell, RJ
   Hellmig, J
   Holmgren, D
   Huber, ME
   Kamat, S
   Lu, A
   Mandic, V
   Martinis, JM
   Meunier, P
   Nelson, H
   Perera, TA
   Isaac, MCP
   Rau, W
   Ross, RR
   Saab, T
   Sadoulet, B
   Sander, J
   Schnee, RW
   Seitz, DN
   Shutt, T
   Smith, A
   Smith, GW
   Spadafora, AL
   Wang, G
   Yellin, S
   Young, BA
TI Present status of the cryogenic dark matter search (CDMS II) experiment
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE dark matter; particle detectors; calorimeters; neutrons
AB The CDMS experiment utilizes Ge and Si detectors operating at 20 mK to search for the Dark Matter of the Universe hypothesized to exist in the form of weakly interacting massive particles (WIMPs). In early 2000, CDMS set the most competitive exclusion limit for scalar-interaction WIMPs in the Stanford Underground Facility (SUF). A new search (CDMS II) is now commencing with several improvements: a deep-site facility in the Soudan mine, Minnesota; and the detector technology has been further improved to aid in the rejection of surface-electron (beta) events. A new generation of detectors, sensitive to the initial athermal phonon flux from a particle event, have been in operation for the past year at Stanford's shallow site and are ready for installation at the deep site. Published by Elsevier Science B.V.
C1 Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
   Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA.
   Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA.
   Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
   Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
   Brown Univ, Dept Phys, Providence, RI 02912 USA.
   Univ Colorado, Dept Phys, Denver, CO 80217 USA.
   Natl Inst Stand & Technol, Boulder, CO 80303 USA.
   Princeton Univ, Dept Phys, Princeton, NJ 08544 USA.
   Santa Clara Univ, Dept Phys, Santa Clara, CA 95053 USA.
RP Brink, PL (reprint author), Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
RI Huber, Martin/B-3354-2011
NR 5
TC 0
Z9 0
U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1590
EP 1591
DI 10.1016/S0921-4526(02)02305-0
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700539
ER

PT J
AU Miyazaki, T
   Ullom, JN
   Cunningham, MF
   Labov, SE
AF Miyazaki, T
   Ullom, JN
   Cunningham, MF
   Labov, SE
TI Multiplexed readout of high energy resolution gamma-ray calorimeters
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE microcalorimeter; transition-edge sensor; multiplex readout; frequency
   domain
ID TRANSITION-EDGE SENSORS; ARRAYS
AB We present the multiplexed readout of two gamma-ray microcalorimeters made from transition-edge sensors. We use a frequency-domain multiplexing scheme in which each sensor is biased at an identifying frequency. We obtain an energy resolution of about 60 eV at 60 keV for each sensor. (C) 2003 Published by Elsevier Science B.V.
C1 Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.
   NIST, Boulder, CO 80305 USA.
RP Miyazaki, T (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA.
RI Miyazaki, Toshiyuki/L-6587-2015
OI Miyazaki, Toshiyuki/0000-0002-1727-7562
NR 9
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY
PY 2003
VL 329
BP 1623
EP 1624
DI 10.1016/S0921-4526(02)02430-4
PN 2
PG 2
WC Physics, Condensed Matter
SC Physics
GA 694YK
UT WOS:000183802700555
ER

PT J
AU Kobler, U
   Hoser, A
   Hupfeld, D
AF Kobler, U
   Hoser, A
   Hupfeld, D
TI A complete description of the order parameter of Heisenberg-type magnets
   for 0 < T < T-c
SO PHYSICA B-CONDENSED MATTER
LA English
DT Article
DE spin waves; thermodynamic crossover; universality classes
ID 4TH-ORDER EXCHANGE INTERACTIONS; BIQUADRATIC EXCHANGE; TEMPERATURE;
   SYSTEMS; EUXSR1-XTE; BEHAVIOR; ABSENCE
AB It is shown experimentally that the temperature dependence of the magnetic order parameter of real Heisenberg magnets, m(s)(T), can be described in the whole range 0 < T < T-c by a sequence of simple analytical functions. The normal behaviour is a single crossover between the well-known critical power law m(s) similar to (T-c - T)(beta) and one analytical dependence according to m(s =) 1 - c x T-epsilon which holds for all lower temperatures. A more complicated situation results if strength or anisotropy of the exchange interactions change strongly as a function of temperature. This can induce further crossover events with discrete changes either of the coefficient c or of the exponent epsilon. Except for the temperatures in the vicinity of the crossover the critical power law and one (or more) empirical T-epsilon functions with definite exponents epsilon give an excellent description of the whole experimental m(s)(T) dependence. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Forschungszentrum, Inst Festkorperforsch, D-52425 Julich, Germany.
   Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany.
   Rhein Westfal TH Aachen, Inst Kristallog, D-52056 Aachen, Germany.
   Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
RP Kobler, U (reprint author), Forschungszentrum, Inst Festkorperforsch, D-52425 Julich, Germany.
NR 27
TC 18
Z9 18
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4526
J9 PHYSICA B
JI Physica B
PD MAY 1
PY 2003
VL 328
IS 3-4
BP 276
EP 282
DI 10.1016/S0921-4526(02)01850-1
PG 7
WC Physics, Condensed Matter
SC Physics
GA 669AJ
UT WOS:000182329500012
ER

PT J
AU Balatsky, AV
   Zhu, JX
AF Balatsky, AV
   Zhu, JX
TI Competing orders and field induction of d+id ' state
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE d plus id ' superconductor; d-density wave; pseudogap; competing order;
   field-induced component
ID SUPERCONDUCTORS; FLUCTUATIONS; PSEUDOGAP; DENSITY
AB The role of the magnetic field on the d-wave density wave as a model of pseudogap state of cuprates and on the d-wave superconducting state will be addresses. We argue that in d-wave density state magnetic field can produce secondary gap components. This distortion by magnetic field offers a possibility to distinguish between different scenarios of pseudogap in normal state of high-T-c materials. Similarly we argue that magnetic field can distort the p-wave state and produce secondary component of the gap in p-wave superconductor. (C) 2003 Published by Elsevier Science B.V.
C1 Los Alamos Natl Lab, Div Theory, Los Alamos, NM 87545 USA.
RP Balatsky, AV (reprint author), Los Alamos Natl Lab, Div Theory, T-11 MS B262, Los Alamos, NM 87545 USA.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD MAY
PY 2003
VL 388
BP 25
EP 28
DI 10.1016/S0921-4534(02)02606-0
PG 4
WC Physics, Applied
SC Physics
GA 686UX
UT WOS:000183340300009
ER

PT J
AU Kawabata, C
   Takeuchi, M
   Hayashi, N
   Ono, F
   Shenoy, SR
   Bishop, AR
AF Kawabata, C
   Takeuchi, M
   Hayashi, N
   Ono, F
   Shenoy, SR
   Bishop, AR
TI Monte Carlo study of pseudo-gap temperature T* within JJA model
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE pseudo-gap temperature; high-T-c cuprate superconductor; Josephson
   junction array model; Ginzburg-Landau theory
ID PHASE FLUCTUATIONS; SUPERCONDUCTORS
AB We study pseudo-gap temperature T* of high-T-c superconductors by a Monte Carlo simulation of anisotropic 3D Josephson junction array (JJA) model based on the Ginzburg-Landau theory. We investigate T* both in the cases of zero external current and finite external current I in the JJA. It is found that, the external current I depresses only a little the pseudo-gap temperature T*, while the superconducting critical temperature T-c is much affected by I. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Okayama Univ, Fac Environm Sci & Technol, Okayama 7008530, Japan.
   Okayama Univ, Ctr Comp, Okayama 7008530, Japan.
   Okayama Univ, Dept Phys, Okayama 7008530, Japan.
   Abdus Salam Int Ctr Theoret Phys, Condensed Matter Grp, I-34100 Trieste, Italy.
   Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Kawabata, C (reprint author), Okayama Univ, Fac Environm Sci & Technol, Okayama 7008530, Japan.
RI Hayashi, Nobuhiko/A-2243-2008
OI Hayashi, Nobuhiko/0000-0002-4781-9799
NR 8
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD MAY
PY 2003
VL 388
BP 31
EP 32
DI 10.1016/S0921-4534(02)02608-4
PG 2
WC Physics, Applied
SC Physics
GA 686UX
UT WOS:000183340300011
ER

PT J
AU Bouquet, F
   Fisher, RA
   Phillips, NE
   Hinks, DG
   Jorgensen, JD
AF Bouquet, F
   Fisher, RA
   Phillips, NE
   Hinks, DG
   Jorgensen, JD
TI Specific heat of (MgB2)-B-11: evidence for two energy gaps
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE specific heat; superconductivity; (MgB2)-B-11; two energy gaps;
   phenomenological fit
ID MGB2; SUPERCONDUCTIVITY; BORON
AB Measurements of the specific heat of (MgB2)-B-11, from 1 to 50 K in magnetic fields to 9 T, are reported. The superconducting-state electron contribution is very different from that of other superconductors, but the general features are consistent with predictions for a two-gap superconductor, and a two-gap model based on BCS thermodynamics can quantitatively represent it. Parameters characterizing the gaps are in agreement with theoretical calculations. An unusually strong magnetic field dependence of the temperature-proportional term in the electron contribution to the vortex-state specific heat is another manifestation of the two gaps. (C) 2003 Elsevier Science B.V. All rights reserved.
C1 Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Berkeley, CA 94720 USA.
   Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
RP Phillips, NE (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Dept Chem, Berkeley, CA 94720 USA.
NR 17
TC 0
Z9 0
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD MAY
PY 2003
VL 388
BP 109
EP 110
DI 10.1016/S0921-4534(02)02364-1
PG 2
WC Physics, Applied
SC Physics
GA 686UX
UT WOS:000183340300048
ER

PT J
AU Karapetrov, G
   Iavarone, M
   Koshelev, AE
   Kwok, WK
   Crabtree, GW
   Hinks, DG
   Lee, SI
AF Karapetrov, G
   Iavarone, M
   Koshelev, AE
   Kwok, WK
   Crabtree, GW
   Hinks, DG
   Lee, SI
TI Momentum-dependent scanning tunneling spectroscopy in MgB2
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article; Proceedings Paper
CT 23rd International Conference on Low Temperature Physics (LT23)
CY AUG 20-27, 2002
CL HIROSHIMA, JAPAN
SP Int Union Pure & Appl Phys, Sci Council Japan, Phys Soc Japan, Japan Soc Appl Phys, Cryogen Assoc Japan
DE MgB2; STM; scanning tunneling spectroscopy; multi-gap superconductivity
AB We present study of the anisotropic superconductor MgB2 using a combination of scanning tunneling microscopy and spectroscopy. The results reveal two distinct energy gaps at Delta(1) = 2.3 meV and Delta(2) = 7.1 meV. Different spectral weights of the partial superconducting density of states are a reflection of different tunneling directions in this multi-band system. Our experimental observations are consistent with the existence of two-band superconductivity in the presence of interband superconducting pair interaction and quasi-particle scattering. Temperature evolution of the tunneling spectra follows the BCS scenario with both gaps vanishing at the bulk T-c The data confirm the importance of Fermi-surface sheet dependent superconductivity in MgB2 proposed in the multi-gap model by Liu et al. [1]. Published by Elsevier Science B.V.
C1 Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA.
   Pohang Univ Sci & Technol, NCRICS, Pohang 790784, South Korea.
   Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea.
RP Karapetrov, G (reprint author), Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Iavarone, Maria/C-3628-2008; Koshelev, Alexei/K-3971-2013; Karapetrov,
   Goran/C-2840-2008
OI Koshelev, Alexei/0000-0002-1167-5906; Karapetrov,
   Goran/0000-0003-1113-0137
NR 6
TC 3
Z9 3
U1 1
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD MAY
PY 2003
VL 388
BP 141
EP 142
DI 10.1016/S0921-4534(02)02685-0
PG 2
WC Physics, Applied
SC Physics
GA 686UX
UT WOS:000183340300064
ER

EF