FN Thomson Reuters Web of Science™ VR 1.0 PT J AU BOETTGER, JC TRICKEY, SB AF BOETTGER, JC TRICKEY, SB TI QUANTUM SIZE EFFECTS IN EQUILIBRIUM LITHIUM ULTRATHIN LAYERS SO PHYSICAL REVIEW B LA English DT Article ID THIN METAL-FILMS; STRUCTURAL-PROPERTIES; UNIVERSAL FEATURES; ELECTRON-DENSITY; ALKALI-METALS; WORK FUNCTION; BERYLLIUM; MONOLAYERS; STATE; EQUATION AB The existence and extent of quantum size effects in simple metal ultrathin films are studied by a systematic local-density, all-electron, full-potential calculation of the cohesive properties of nu-layers of hexagonal Li, with nu = 1, 2, 3, 4, and 5. By nu = 5, there is clear convergence of the a lattice parameter (intraplanar bond length) to very nearly the calculated crystalline value, with a distinction between the two films with a meaningful interior (a = 5.68 +/- 0.01 a.u. for nu = 4 and 5) and those with a minimal interior or non at all (nu = 3 and nu = 1 and 2, respectively; a = 5.75(-0.01)+0.02 a.u.). Equally clear stability of the interplanar spacings occurs at distinctly noncrystalline values (4.27 a.u. for nu = 2; 4.38 +/- 0.01 a.u. for the inner spacing of nu = 3,4, and 5 versus 4.64 a.u. for the crystalline calculation). The cohesive energies of the 3, 4, and 5 layers are closely clumped at about 87% of the crystalline value. As the 2 and 1 layers are substantially less bound, both the cohesive properties and the inner interplanar spacing suggest a different grouping than suggested by the a lattice parameter. Rough extrapolation of the slowly increasing cohesion with nu-suggests that nu almost-equal-to 20 would be needed to achieve even 90% of the crystalline cohesive energy. The calculated surface energies do not exhibit any strong size effect, in striking contrast to Al films. The equilibrium intraplanar force constant a2E/da2 has a minimum at nu = 3, with its maximum at nu = 5 almost 2.5 times larger. The calculated work functions give only a hint, at the very most, of the quantum size oscillations predicted from jellium models. A significant quantum size effect occurs, however, in the occupied portion of the density of states, which exhibits a step-function increase for each integer increase in nu. The density of states at E(F) has a maximum at nu = 3 with a variation over the series of about 10%. The unrelaxed films do not exhibited a strong quantum size effect than the equilibrium films, again with the barely possible exception of the work function. C1 UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611. UNIV FLORIDA,DEPT PHYS,QUANTUM THEORY PROJECT,GAINESVILLE,FL 32611. UNIV CALIF LOS ALAMOS SCI LAB,CTR MAT SCI,LOS ALAMOS,NM 87545. RP BOETTGER, JC (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. NR 38 TC 66 Z9 66 U1 0 U2 6 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1363 EP 1372 DI 10.1103/PhysRevB.45.1363 PG 10 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100035 ER PT J AU BURNS, AR STECHEL, EB JENNISON, DR ORLANDO, TM AF BURNS, AR STECHEL, EB JENNISON, DR ORLANDO, TM TI EFFECTS OF COADSORBED ATOMIC OXYGEN ON THE ELECTRON-STIMULATED DESORPTION OF NEUTRAL NO FROM PT(111) SO PHYSICAL REVIEW B LA English DT Article ID CARBON-MONOXIDE; SURFACE; CO; PHOTOEMISSION; ADSORPTION; COADSORPTION; DISSOCIATION; DYNAMICS; NI(111); PHOTODESORPTION AB We examine the effects of an electronegative coadsorbate on the electron-stimulated-desorption (ESD) yield and desorbate energies (translational and internal) of a chemisorbed molecule. Specifically, we use laser resonance-ionization spectroscopy to characterize the ESD of neutral NO from a Pt(111) surface precovered with atomic oxygen. With increasing oxygen coverage (up to 0.75 monolayer), we observe the following for the No desorbate: (1) an exponential increase in specific yield, (2) increased translational energy, (3) decreased vibrational energy, (4) decreased rotational energy, and (5) a growing propensity to produce the upper spin-orbit level of the spin-orbit-split electronic ground state. The first three observations are understood in terms of an O-induced reduction in charge transfer from the substrate into the adsorbate 2-pi molecular level to screen the electronic excitation (5-sigma(-1)). This has the dual effect of reducing the Auger decay rate 5-sigma(1)2-pi(2)(NO) --> 5-sigma(2)2-pi(2)(NO+), and of lowering the NO vibrational excitation. The consequences of a reduced Auger decay rate are a larger ESD yield and more desorbate translational energy. We argue that the spin-orbit propensity arises from an O-induced rotational hindering of the NO excited state. A hindered NO+ rotor, ionized after Auger decay, is reneutralized by a strongly spin-orbit-split Pt(111) substrate at a greater rate into the upper level than into the lower level. RP BURNS, AR (reprint author), SANDIA NATL LABS,DIV 1151,ALBUQUERQUE,NM 87185, USA. RI Stechel, Ellen/B-1253-2012 NR 62 TC 18 Z9 18 U1 0 U2 4 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1373 EP 1385 DI 10.1103/PhysRevB.45.1373 PG 13 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100036 ER PT J AU YANG, W FAULKNER, JS NICHOLSON, DM AF YANG, W FAULKNER, JS NICHOLSON, DM TI APPLICATIONS OF THE QUADRATIC KORRINGA-KOHN-ROSTOKER BAND-THEORY METHOD TO COMPLEX LATTICES SO PHYSICAL REVIEW B LA English DT Note ID PALLADIUM-HYDROGEN; SUPERCONDUCTIVITY; HYDRIDE; SYSTEMS; PDHX AB The quadratic Korringa-Kohn-Rostoker band-theory method is generalized to treat crystals with many atoms per unit cell. It is applied to palladium hydride with the NaCl structure and a test case in which two niobium atoms are placed on the sites of a CsCl lattice. We demonstrate that this is a fast and reliable band-theory method for compounds. C1 FLORIDA ATLANTIC UNIV, DEPT PHYS, BOCA RATON, FL 33431 USA. OAK RIDGE NATL LAB, DIV MET & CERAM, OAK RIDGE, TN 37831 USA. RP FLORIDA ATLANTIC UNIV, ALLOY RES CTR, BOCA RATON, FL 33431 USA. NR 16 TC 2 Z9 2 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 EI 1550-235X J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1425 EP 1427 DI 10.1103/PhysRevB.45.1425 PG 3 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100043 ER PT J AU RENO, JL JONES, ED AF RENO, JL JONES, ED TI DETERMINATION OF THE DEPENDENCE OF THE BAND-GAP ENERGY ON COMPOSITION FOR CD1-XZNXTE SO PHYSICAL REVIEW B LA English DT Note ID MOLECULAR-BEAM EPITAXY; GROWTH AB We have grown Cd1-xZnxTe layers over the entire composition range (0 less-than-or-equal-to x less-than-or-equal-to 1) by molecular-beam epitaxy on GaAs(100) substrates. The quality of the layers is good near the end points of the alloy range but decreases in the middle as expected. We have obtained a relationship for the band-gap energy at 4 K as a function of Zn concentration. This relationship exhibits significantly larger bowing than was previously thought. RP RENO, JL (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 13 TC 46 Z9 46 U1 1 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1440 EP 1442 DI 10.1103/PhysRevB.45.1440 PG 3 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100047 ER PT J AU PELOUCH, WS ELLINGSON, RJ POWERS, PE TANG, CL SZMYD, DM NOZIK, AJ AF PELOUCH, WS ELLINGSON, RJ POWERS, PE TANG, CL SZMYD, DM NOZIK, AJ TI COMPARISON OF HOT-CARRIER RELAXATION IN QUANTUM-WELLS AND BULK GAAS AT HIGH CARRIER DENSITIES SO PHYSICAL REVIEW B LA English DT Note ID LUMINESCENCE SPECTROSCOPY; SUPERLATTICES AB An investigation of the hot-carrier relaxation in GaAs/(Al,Ga)As quantum wells and bulk GaAs in the high-carrier-density limit is presented. Using a time-resolved luminescence up-conversion technique with less-than-or-equal-to 80-fs temporal resolution, carrier temperatures are measured in the 100-fs-to-2-ns range. Our results show that the hot-carrier cooling rates in the quantum wells are significantly slower than in the bulk for carrier densities greater than 2 x 10(18) cm-3. A comparison is made with previous publications to resolve the confusion concerning the difference in cooling rates in quasi-two- and three-dimensional systems. C1 SOLAR ENERGY RES INST,GOLDEN,CO 80401. RP PELOUCH, WS (reprint author), CORNELL UNIV,ITHACA,NY 14853, USA. RI Ellingson, Randy/H-3424-2013 NR 21 TC 52 Z9 53 U1 1 U2 5 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1450 EP 1453 DI 10.1103/PhysRevB.45.1450 PG 4 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100050 ER PT J AU CHIN, RP HUANG, JY SHEN, YR CHUANG, TJ SEKI, H BUCK, M AF CHIN, RP HUANG, JY SHEN, YR CHUANG, TJ SEKI, H BUCK, M TI VIBRATIONAL-SPECTRA OF HYDROGEN ON DIAMOND C(111)-(1X1) SO PHYSICAL REVIEW B LA English DT Note ID SUM-FREQUENCY GENERATION; LEED STRUCTURE-ANALYSIS; 111 SURFACE; CHAIN MODEL; RECONSTRUCTION AB Infrared-visible sum-frequency generation was used to obtain vibrational spectra of hydrogen on C(111). From a fully relaxed (1 x 1) surface, a single sharp peak at approximately 2830 cm-1 was observed, which can be identified as the CH stretch mode from H on top sites. With the surface freshly transformed from (2 x 1) to (1 x 1), however, another peak at a higher frequency was detected. This is attributed to H adsorbed on a metastable (1 x 1) structure. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DEPT MAT SCI,BERKELEY,CA 94720. IBM CORP,DIV RES,ALMADEN RES CTR,SAN JOSE,CA 95120. RP CHIN, RP (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 23 TC 124 Z9 124 U1 0 U2 7 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 3 BP 1522 EP 1524 DI 10.1103/PhysRevB.45.1522 PG 3 WC Physics, Condensed Matter SC Physics GA HA081 UT WOS:A1992HA08100069 ER PT J AU HOUSTON, JE FEIBELMAN, PJ ONEILL, DG HAMANN, DR AF HOUSTON, JE FEIBELMAN, PJ ONEILL, DG HAMANN, DR TI SURFACE AND INTERFACE PROPERTIES FOR THE CU/W(110) SYSTEM AND THEIR EFFECT ON OXYGEN-ADSORPTION SO PHYSICAL REVIEW B LA English DT Article ID W(110) SURFACE; CU; RU(0001); STATE; FILMS; CO AB The results of angle-resolved ultraviolet photoemission measurements and electronic-structure calculations are presented for Cu adsorbed on the W(110) surface. Data as a function of Cu coverage suggest the existence of sets of surface and interface states resulting from the Cu-W interaction. Calculations corroborate this suggestion and identify the surface and interface character and orbital symmetries of the states. Near the zone boundary along the GAMMABAR-HBAR symmetry line, these states lie in gaps in the projected bulk band structure for the W(110) surface and are localized either within the Cu overlayer (surface states) or shared between the Cu and first W layer (interface states). Reasonable agreement is obtained between experiment and theory. We also performed low-energy electron diffraction and measured the behavior of the surface and interface states with O2 coverage. We conclude that the enhancement of the O2 dissociative sticking coefficient for the 1-monolayer Cu film results from an increase in the precursor-state accommodation coupled with the ability of Cu to displace easily giving O2 continued access to the more active W surface. C1 AT&T BELL LABS,MURRAY HILL,NJ 07974. RP HOUSTON, JE (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 26 TC 8 Z9 8 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 4 BP 1811 EP 1819 DI 10.1103/PhysRevB.45.1811 PG 9 WC Physics, Condensed Matter SC Physics GA HB929 UT WOS:A1992HB92900034 ER PT J AU FREERICKS, JK FALICOV, LM AF FREERICKS, JK FALICOV, LM TI THERMODYNAMIC MODEL OF THE INSULATOR-METAL TRANSITION IN NICKEL IODIDE SO PHYSICAL REVIEW B LA English DT Note ID NII2 AB A model calculation of the phase diagram for the isostructural insulator-metal phase transition of nickel iodide is presented. The system is modeled by the Falicov-Kimball Hamiltonian with the calculated band structure of NiL2 and (Ising) spin-spin interactions, but neglects all hybridization effects between nickel 3d and iodine 5p bands. Many-body interactions and spin superexchange are both treated in mean-field theory. The results include second-order antiferromagnetic-paramagnetic insulator transitions, first-order insulator-metal transitions, and a (as yet unobserved and probably unobservable) classical critical point. The calculated phase diagram and transport properties agree well with the recent experimental results. C1 UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RI Freericks, James/D-7502-2011; OI Freericks, James/0000-0002-6232-9165 NR 12 TC 12 Z9 12 U1 0 U2 7 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0163-1829 J9 PHYS REV B JI Phys. Rev. B PD JAN 15 PY 1992 VL 45 IS 4 BP 1896 EP 1899 DI 10.1103/PhysRevB.45.1896 PG 4 WC Physics, Condensed Matter SC Physics GA HB929 UT WOS:A1992HB92900043 ER PT J AU GUPTA, AK HILL, CT HOLMAN, R KOLB, EW AF GUPTA, AK HILL, CT HOLMAN, R KOLB, EW TI STATISTICAL-MECHANICS OF SOFT-BOSON PHASE-TRANSITIONS SO PHYSICAL REVIEW D LA English DT Article ID PSEUDO-GOLDSTONE BOSONS; LARGE-SCALE STRUCTURE; BROKEN LEPTON NUMBER; INFLATIONARY UNIVERSE; DOMAIN-WALLS; DENSITY PERTURBATIONS; SYMMETRY-BREAKING; DARK MATTER; GENERATION; EVOLUTION AB The existence of structures on large (say, 100 Mpc) scales and limits to anisotropies in the cosmic microwave background radiation (CMBR) have imperiled models of structure formation based solely upon the standard cold-dark-matter scenario. Novel scenarios, which may be compatible with large-scale structure and small CMBR anisotropies, invoke nonlinear fluctuations in the density appearing after recombination, accomplished via the use of late-time phase transitions involving ultralow-mass scalar bosons. Here, we study the statistical mechanics of such phase transitions in several models involving naturally ultralow-mass pseudo Nambu-Goldstone bosons (PNGB's). These models can exhibit several interesting effects at high temperature, which we argue are the most general possibilities for PNGB's. C1 FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637. NASA,FERMILAB ASTROPHYS CTR,FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP GUPTA, AK (reprint author), CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213, USA. NR 50 TC 30 Z9 30 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2821 J9 PHYS REV D JI Phys. Rev. D PD JAN 15 PY 1992 VL 45 IS 2 BP 441 EP 454 DI 10.1103/PhysRevD.45.441 PG 14 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA HB215 UT WOS:A1992HB21500008 ER PT J AU ITO, T SMITH, CL CANTOR, CR AF ITO, T SMITH, CL CANTOR, CR TI SEQUENCE-SPECIFIC DNA PURIFICATION BY TRIPLEX AFFINITY CAPTURE SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE TRIPLE-HELIX DNA; BIOTINYLATED OLIGONUCLEOTIDE; STREPTAVIDIN; MAGNETIC SEPARATION; DINUCLEOTIDE REPEAT ID HOMOPURINE-HOMOPYRIMIDINE SEQUENCES; HELIX FORMATION; DUPLEX DNA; INHIBITION; SITE; CHROMOSOMES; RECOGNITION; CLEAVAGE; PROTEINS AB A DNA isolation procedure was developed by using triple-helix formation and magnetic separation. In this procedure, target DNA is captured by a biotinylated oligonucleotide via intermolecular triplex formation, bound to streptavidin-coated magnetic beads, and recovered in double-stranded form by elution with a mild alkaline buffer that destabilizes the triple helix. The effectiveness of the procedure was demonstrated by a model experiment with an artificially reconstructed library and, also, by the isolation of (dT-dC)n.(dG-dA)n dinucleotide repeats from a human genomic library. This procedure provides a prototype for other triplex-mediated DNA isolation technologies. C1 UNIV CALIF BERKELEY,DEPT MOLEC & CELL BIOL,529 STANLEY HALL,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV CHEM BIODYNAM,BERKELEY,CA 94720. OI Smith, Cassandra/0000-0002-0346-8907 FU NCI NIH HHS [CA39782] NR 39 TC 105 Z9 109 U1 1 U2 6 PU NATL ACAD PRESS PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD JAN 15 PY 1992 VL 89 IS 2 BP 495 EP 498 DI 10.1073/pnas.89.2.495 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA GZ696 UT WOS:A1992GZ69600010 PM 1731318 ER PT J AU NISHINA, PM JOHNSON, JP NAGGERT, JK KRAUSS, RM AF NISHINA, PM JOHNSON, JP NAGGERT, JK KRAUSS, RM TI LINKAGE OF ATHEROGENIC LIPOPROTEIN PHENOTYPE TO THE LOW-DENSITY-LIPOPROTEIN RECEPTOR LOCUS ON THE SHORT ARM OF CHROMOSOME-19 SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA LA English DT Article DE LOW DENSITY LIPOPROTEINS; LOW DENSITY LIPOPROTEIN SUBCLASSES; INSULIN RECEPTOR; GENETIC LINKAGE ID DINUCLEOTIDE REPEAT POLYMORPHISM; POLYMERASE CHAIN-REACTION; SUBCLASS PATTERNS; GEL-ELECTROPHORESIS; DNA; IDENTIFICATION; INHERITANCE; SEQUENCES; PLASMA; HUMANS AB The atherogenic lipoprotein phenotype (ALP) is a common heritable trait characterized by a predominance of small, dense low density lipoprotein (LDL) particles (subclass pattern B), increased levels of triglyceride-rich lipoproteins, reductions in high density lipoprotein, and a 3-fold increased risk of myocardial infarction. Significant two-point linkage was found between ALP and the LDL receptor locus on the short arm of chromosome 19 in 51 relatives of nine probands with ALP pattern B. The maximum logarithm of odds (LOD) score of 4.07 was observed at a recombination fraction of 0.04, assuming 100% penetrance of ALP pattern B, and 4.27 at a recombination fraction of zero, assuming 90% penetrance of pattern B. Haplotyping data and multipoint linkage analysis suggest that the gene [named ATHS for atherosclerosis susceptibility (lipoprotein-associated)] responsible for ALP is located distal to D19S76 near or at the LDL receptor locus. This result suggests the possibility that genetic variation at the LDL receptor locus or a closely linked locus on chromosome 19 may be responsible for metabolic alterations in ALP pattern B that account for a substantial proportion of the familial predisposition to coronary artery disease in the general population. C1 UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DONNER LAB, BERKELEY, CA 94720 USA. CHILDRENS HOSP OAKLAND, RES INST, OAKLAND, CA 94609 USA. FU NHLBI NIH HHS [HL 18574] NR 27 TC 150 Z9 151 U1 0 U2 2 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0027-8424 J9 P NATL ACAD SCI USA JI Proc. Natl. Acad. Sci. U. S. A. PD JAN 15 PY 1992 VL 89 IS 2 BP 708 EP 712 DI 10.1073/pnas.89.2.708 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA GZ696 UT WOS:A1992GZ69600053 PM 1731344 ER PT J AU CASTRO, RG SMITH, RW ROLLETT, AD STANEK, PW AF CASTRO, RG SMITH, RW ROLLETT, AD STANEK, PW TI TOUGHNESS OF DENSE MOSI2 AND MOSI2 TANTALUM COMPOSITES PRODUCED BY LOW-PRESSURE PLASMA DEPOSITION SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article ID SOLIDIFICATION; DROPLETS C1 DREXEL UNIV,DEPT MAT ENGN,PHILADELPHIA,PA 19104. RP CASTRO, RG (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87544, USA. RI Rollett, Anthony/A-4096-2012 OI Rollett, Anthony/0000-0003-4445-2191 NR 11 TC 28 Z9 28 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JAN 15 PY 1992 VL 26 IS 2 BP 207 EP 212 DI 10.1016/0956-716X(92)90174-D PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA GZ158 UT WOS:A1992GZ15800009 ER PT J AU BHATTACHARYA, AK AF BHATTACHARYA, AK TI ENHANCEMENT OF CREEP-PROPERTIES OF A SUPERALLOY BY MICROSTRUCTURAL MODIFICATION SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article ID BEHAVIOR RP BHATTACHARYA, AK (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JAN 15 PY 1992 VL 26 IS 2 BP 225 EP 230 DI 10.1016/0956-716X(92)90177-G PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA GZ158 UT WOS:A1992GZ15800012 ER PT J AU HEINZ, K STARKE, U VANHOVE, MA SOMORJAI, GA AF HEINZ, K STARKE, U VANHOVE, MA SOMORJAI, GA TI THE ANGULAR-DEPENDENCE OF DIFFUSE LEED INTENSITIES AND ITS STRUCTURAL INFORMATION-CONTENT SO SURFACE SCIENCE LA English DT Article ID ENERGY ELECTRON-DIFFRACTION AB The structural determination of disordered adsorbates from diffuse LEED intensities has so far relied on measured angle-dependent intensity maps taken at fixed energies. It is therefore important to understand the structural information content of such intensity maps. We have examined the degree of angular dependence of the diffuse intensities, since this is the foremost factor affecting the density of information content. To that end, we have measured and calculated energy-dependent diffuse I-V curves at nearby exit angles: diffuse I-V curves are very promising alternatives to the fixed-energy diffuse LEED maps. In particular, we address the issue of how densely diffuse LEED maps and diffuse I-V curves should optimally be sampled. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. RP HEINZ, K (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,CTR ADV MAT,BERKELEY,CA 94720, USA. RI Van Hove, Michel/A-9862-2008 OI Van Hove, Michel/0000-0002-8898-6921 NR 13 TC 28 Z9 28 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD JAN 15 PY 1992 VL 261 IS 1-3 BP 57 EP 63 DI 10.1016/0039-6028(92)90217-T PG 7 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA HB401 UT WOS:A1992HB40100010 ER PT J AU ATREI, A PEDOCCHI, L BARDI, U ROVIDA, G TORRINI, M ZANAZZI, E VANHOVE, MA ROSS, PN AF ATREI, A PEDOCCHI, L BARDI, U ROVIDA, G TORRINI, M ZANAZZI, E VANHOVE, MA ROSS, PN TI LEED STRUCTURAL-ANALYSIS OF THE (001) SURFACE OF THE ORDERED FCC PT3TI ALLOY SO SURFACE SCIENCE LA English DT Article ID NONDILUTE BIMETALLIC ALLOYS; ENERGY ELECTRON-DIFFRACTION; SANDWICH SEGREGATION; ATOMIC-STRUCTURE; PT50NI50; CO AB The surface structure of the (001) plane of the ordered fee Pt3Ti alloy was studied by dynamical LEED analysis. The model that gives the best theory-experiment agreement corresponds to bulk truncation, with the outermost plane being pure platinum. The results also indicate a contraction of the first interplanar distance with respect to the bulk value and a slight upward buckling of Ti atoms in the second outermost plane. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RP ATREI, A (reprint author), UNIV FLORENCE,DIPARTMENTO CHIM,I-50121 FLORENCE,ITALY. RI Van Hove, Michel/A-9862-2008; Bardi, Ugo/L-1978-2015 OI Van Hove, Michel/0000-0002-8898-6921; Bardi, Ugo/0000-0003-2240-2070 NR 20 TC 26 Z9 26 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD JAN 15 PY 1992 VL 261 IS 1-3 BP 64 EP 68 DI 10.1016/0039-6028(92)90218-U PG 5 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA HB401 UT WOS:A1992HB40100011 ER PT J AU BALOOCH, M OLANDER, DR AF BALOOCH, M OLANDER, DR TI ETCHING OF SILICON-CARBIDE BY CHLORINE SO SURFACE SCIENCE LA English DT Article ID HIGH-TEMPERATURES; LOW-PRESSURE; OXYGEN; TANTALUM; SI(100); METALS; GASES AB The reaction of Cl2 with polycrystalline beta-silicon carbide was studied by the modulated molecular beam-mass spectrometric detection method. The temperature range was 300. 1000 K and beam intensities between 10(16) and 10(17)/cm2 s were employed. The sole silicon-bearing gaseous product was SiCl4, which was produced with a maximum reaction probability of 5 x 10(-4) at 740 K. At higher temperatures, the reaction probability dropped precipitously, probably because of decomposition of Si-Cl surface intermediates prior to further reaction to produce the SiCl4 etch product. The CCl4 reaction product was also observed, but with a reaction probability approximately 4 times lower than that of SiCl4. Buildup of an ash of unreacted carbon on the surface was demonstrated by scanning Auger microscopy. Ion bombardment during reaction had little effect on increasing product yields. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT NUCL ENGN,BERKELEY,CA 94720. RP BALOOCH, M (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 24 TC 15 Z9 15 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD JAN 15 PY 1992 VL 261 IS 1-3 BP 321 EP 334 DI 10.1016/0039-6028(92)90243-Y PG 14 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA HB401 UT WOS:A1992HB40100036 ER PT J AU DEVOS, AM ULTSCH, MH KELLEY, RF PADMANABHAN, K TULINSKY, A WESTBROOK, ML KOSSIAKOFF, AA AF DEVOS, AM ULTSCH, MH KELLEY, RF PADMANABHAN, K TULINSKY, A WESTBROOK, ML KOSSIAKOFF, AA TI CRYSTAL-STRUCTURE OF THE KRINGLE-2 DOMAIN OF TISSUE PLASMINOGEN-ACTIVATOR AT 2.4-A RESOLUTION SO BIOCHEMISTRY LA English DT Article ID NUCLEAR-MAGNETIC-RESONANCE; BINDING-SITE; FIBRIN-BINDING; MACROMOLECULAR CRYSTALLOGRAPHY; ESCHERICHIA-COLI; LYSINE-BINDING; ACID; LIGAND; PROTHROMBIN; EXPRESSION AB The crystal structure of the kringle 2 domain of tissue plasminogen activator was determined and refined at a resolution of 2.43 angstrom. The overall fold of the molecule is similar to that of prothrombin kringle 1 and plasminogen kringle 4; however, there are differences in the lysine binding pocket, and two looping regions, which include insertions in kringle 2, take on very different conformations. Based on a comparison of the overall structural homology between kringle 2 and kringle 4, a new sequence alignment for kringle domains is proposed that results in a division of kringle domains into two groups, consistent with their proposed evolutionary relation. The crystal structure shows a strong interaction between a lysine residue of one molecule and the lysine/fibrin binding pocket of a noncrystallographically related neighbor. This interaction represents a good model of a bound protein ligand and is the first such ligand that has been observed in a kringle binding pocket. The structure shows an intricate network of interactions both among the binding pocket residues and between binding pocket residues and the lysine ligand. A lysine side chain is identified as the positively charged group positioned to interact with the carboxylate of lysine and lysine analogue ligands. In addition, a chloride ion is located in the kringle-kringle interface and contributes to the observed interaction between kringle molecules. C1 MICHIGAN STATE UNIV,DEPT CHEM,E LANSING,MI 48824. ARGONNE NATL LAB,BIOL & MED RES,ARGONNE,IL 60439. RP DEVOS, AM (reprint author), GENENTECH INC,DEPT PROT ENGN,460 POINT SAN BRUNO BLVD,SAN FRANCISCO,CA 94080, USA. FU NHLBI NIH HHS [HL25942] NR 48 TC 102 Z9 105 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0006-2960 J9 BIOCHEMISTRY-US JI Biochemistry PD JAN 14 PY 1992 VL 31 IS 1 BP 270 EP 279 DI 10.1021/bi00116a037 PG 10 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA GZ438 UT WOS:A1992GZ43800037 PM 1310033 ER PT J AU ROOBOL, LP STEEL, SC JOCHEMSEN, R FROSSATI, G BEDELL, KS MEYEROVICH, AE AF ROOBOL, LP STEEL, SC JOCHEMSEN, R FROSSATI, G BEDELL, KS MEYEROVICH, AE TI SPIN-POLARIZING CONCENTRATED HE-3-HE-4 MIXTURES BY THE RAPID-MELTING METHOD SO EUROPHYSICS LETTERS LA English DT Article DE HE-II-3HE; SPIN-POLARIZED HYDROGEN AND HELIUM; RELAXATION EFFECTS ID RELAXATION-TIME; LOW-TEMPERATURES; FERMI-LIQUID; HE-3 AB We have achieved high-spin polarizations in concentrated mixtures of He-3 in He-4 using the rapid-melting method originally suggested by Castaing and Nozieres for pure He-3. Polarizations well above the equilibrium value (greater than 10%) were obtained at T almost-equal-to 350 mK. The observed relaxation time T1 = 4000 s was of the same order as the theoretical predictions of the bulk relaxation time, and was long enough to suggest that it should be possible to study the properties of these strongly polarized mixtures. C1 UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. UNIV RHODE ISL,DEPT PHYS,KINGSTON,RI 02881. RP ROOBOL, LP (reprint author), KAMERLINGH ONNES LAB,NIEUWSTEEG 18,2311 SB LEIDEN,NETHERLANDS. NR 21 TC 13 Z9 13 U1 1 U2 2 PU EDITIONS PHYSIQUE PI LES ULIS CEDEX PA Z I DE COURTABOEUF AVE 7 AV DU HOGGAR, BP 112, 91944 LES ULIS CEDEX, FRANCE SN 0295-5075 J9 EUROPHYS LETT JI Europhys. Lett. PD JAN 14 PY 1992 VL 17 IS 3 BP 219 EP 224 DI 10.1209/0295-5075/17/3/006 PG 6 WC Physics, Multidisciplinary SC Physics GA GU482 UT WOS:A1992GU48200006 ER PT J AU VANDERMEULEN, P KRAUSE, MO DELANGE, CA AF VANDERMEULEN, P KRAUSE, MO DELANGE, CA TI ANGLE-RESOLVED PHOTOELECTRON SPECTROMETRY OF ATOMIC BROMINE USING SYNCHROTRON RADIATION SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID CROSS-SECTION; PHOTO-IONIZATION; PHOTOIONIZATION CONTINUUM; ANGULAR-DISTRIBUTIONS; HALOGEN ATOMS; RESONANCES; XE; PHOTOIONISATION; CHLORINE; KR AB Using synchrotron-radiation-based angle-resolved photoelectron spectrometry we measured the relative partial cross sections and asymmetry parameters for all 4p-1 ionic states of atomic bromine between the 4p-1 1S0e and 4s-1 3P2o thresholds. The cross sections are placed on an absolute scale using previous data obtained with an electron spectroscopy modulation method. Attention is focused on autoionization phenomena due to the 4s(2)4p5 --> 4s4p5np one-electron and 4s(2)4p5 --> 4s(2)4p3nln'l' two-electron excitations. The 4s --> np Rydberg series strongly resembles the equivalent series in krypton. The autoionization profiles of the doubly-excited states are found to depend strongly on the continuum channel. Outside the resonances, non-relativistic Hartree-Fock calculations are in reasonable agreement with the present experimental results. Discrepancies are attributed to correlation and/or relativistic effects. C1 UNIV AMSTERDAM,DEPT PHYS CHEM,1018 WS AMSTERDAM,NETHERLANDS. RP VANDERMEULEN, P (reprint author), OAK RIDGE NATL LAB,DIV CHEM,POB 2008,OAK RIDGE,TN 37831, USA. NR 43 TC 26 Z9 26 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD JAN 14 PY 1992 VL 25 IS 1 BP 97 EP 113 PG 17 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA HA952 UT WOS:A1992HA95200014 ER PT J AU TUZUN, U WALTON, OR AF TUZUN, U WALTON, OR TI MICROMECHANICAL MODELING OF LOAD-DEPENDENT FRICTION IN CONTACTS OF ELASTIC SPHERES SO JOURNAL OF PHYSICS D-APPLIED PHYSICS LA English DT Article; Proceedings Paper CT INTERNATIONAL CONF ON FRONTIERS OF TRIBOLOGY, CELEBRATING THE 10TH ANNIVERSARY OF THE TRIBOLOGY GROUP OF THE INST OF PHYSICS CY APR, 1991 CL STRATFORD AVON, ENGLAND SP INST PHYS, TRIBOL GRP, JAPANESE SOC TRIBOLOGISTS, INST CHEM ENGN, INST PETR, PLASTIC & RUBBER INST, ROYAL SOC CHEM, INST MECH ENGINEERS, SOC TRIBOLOGISTS & LUBRICAT ENGINEERS ID INTERFACIAL FRICTION; POWDERS; FILMS AB Recent experimental measurements using twin-axis load cells in storage vessels for bulk solids have revealed load-dependent variation of the wall friction angles measured in the presence of small normal loads on smooth silo walls. The effect is quite appreciable with smooth particles such as plastic beads and glass ballotini, but particles with rough surfaces, like some agricultual seeds, show no such effect. The inclusion of an intrinsic shear resistance at zero normal load into the frictional behaviour (after Briscoe and Tabor) provides a satisfactory prediction of tangential forces required to cause gross sliding of smooth particles over smooth silo walls. This work applies the same adhesive friction concepts to the microdisplacements that occur before full tangential sliding develops. Mindlin analysed the traction profiles for two spheres in contact assuming a constant coefficient of friction, independent of normal stress inside the contact area, with microslip occurring in those portions of the contact area that had a tangential-to-normal stress ratio exceeding the friction coefficient. The assumptions of that analysis preclude the existence of the observed load dependence of wall friction angles. In this paper we re-examine the micromechanical nature of contacts between elastic spheres incorporating tangential stress limits that contain two terms: one proportional to the normal stress at each point in the contact area, the other independent of normal stress. Two possible physical (and mathematical) interpretations of the stress-independent term are discussed, one called adhesive slip and the other stick slip. The resulting traction profiles are examined to determine implications for both microslip and gross-sliding frictional behaviour. A complete theoretical analysis requires the solution of the surface displacement integral over the contact region for a chosen form of the tangential traction profile satisfying appropriate boundary conditions for elastic displacements. Upper and lower bounds and an approximate form for the resulting tangential force-displacement curves are developed and it is shown that such models result in a load-dependent friction behaviour that is very similar to recent experimental wall friction and individual particle friction measurements. C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. RP TUZUN, U (reprint author), UNIV SURREY,DEPT CHEM & PROC ENGN,GUILDFORD GU2 5XH,SURREY,ENGLAND. NR 31 TC 9 Z9 9 U1 1 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0022-3727 J9 J PHYS D APPL PHYS JI J. Phys. D-Appl. Phys. PD JAN 14 PY 1992 VL 25 IS 1A BP A44 EP A52 DI 10.1088/0022-3727/25/1A/009 PG 9 WC Physics, Applied SC Physics GA HB406 UT WOS:A1992HB40600010 ER PT J AU OREHOTSKY, J REILLY, KM SUENAGA, M HIKATA, T UEYAMA, M SATO, K AF OREHOTSKY, J REILLY, KM SUENAGA, M HIKATA, T UEYAMA, M SATO, K TI AC LOSSES IN POWDER-IN-TUBE BI2CA2SR2CU3O10 TAPES AT POWER FREQUENCIES SO APPLIED PHYSICS LETTERS LA English DT Article AB ac losses in Bi2Ca2Sr2Cu3O10 tapes, which were fabricated by the powder-in-Ag tube method, were measured with the applied field parallel to the tape face for frequencies 15-180 Hz and at 4.2 and 65-77 K. The losses were found to be significantly lower than those for sintered bars of YBa2Cu3O7 and the frequency dependence of the losses at 77 K was linear indicating that the losses were hysteretic in origin. However, at 4.2 K a significant contribution to the losses from the eddy current losses in the Ag sheath was apparent for frequencies greater than 30 Hz. Furthermore, the magnetic field dependence of the losses at 77 K followed the Bean model surprisingly well. C1 SUMITOMO ELECT IND LTD,OSAKA RES LABS,KONOHANA KU,OSAKA 554,JAPAN. RP OREHOTSKY, J (reprint author), BROOKHAVEN NATL LAB,UPTON,NY 11973, USA. NR 8 TC 21 Z9 21 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD JAN 13 PY 1992 VL 60 IS 2 BP 252 EP 254 DI 10.1063/1.106953 PG 3 WC Physics, Applied SC Physics GA GY795 UT WOS:A1992GY79500037 ER PT J AU COULTER, KP HOLT, RJ KINNEY, ER KOWALCZYK, RS POTTERVELD, DH YOUNG, L ZEIDMAN, B ZGHICHE, A TOPORKOV, DK AF COULTER, KP HOLT, RJ KINNEY, ER KOWALCZYK, RS POTTERVELD, DH YOUNG, L ZEIDMAN, B ZGHICHE, A TOPORKOV, DK TI SPIN-EXCHANGE OPTICAL-PUMPING AS A SOURCE OF SPIN-POLARIZED ATOMIC DEUTERIUM SO PHYSICAL REVIEW LETTERS LA English DT Article ID ELECTRON-CAPTURE; VAPOR; HYDROGEN; SURFACES; SYSTEMS; DENSITY; TARGETS AB Optical pumping of potassium atoms followed by spin-exchange scattering with deuterium atoms in a high magnetic field was found to produce an intense, highly spin-polarized beam of atomic deuterium. In particular, the atomic polarization of deuterium was determined to be (73 +/- 3)% at an intensity of 2.1 x 10(17) atoms/s. C1 NOVOSIBIRSK NUCL PHYS INST,NOVOSIBIRSK 630090,USSR. RP COULTER, KP (reprint author), ARGONNE NATL LAB,DIV PHYS,ARGONNE,IL 60439, USA. RI Holt, Roy/E-5803-2011 NR 23 TC 42 Z9 42 U1 0 U2 1 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 JAN 13 PY 1992 VL 68 IS 2 BP 174 EP 177 DI 10.1103/PhysRevLett.68.174 PG 4 WC Physics, Multidisciplinary SC Physics GA GY703 UT WOS:A1992GY70300011 ER PT J AU JOYCE, JJ ARKO, AJ LAWRENCE, J CANFIELD, PC FISK, Z BARTLETT, RJ THOMPSON, JD AF JOYCE, JJ ARKO, AJ LAWRENCE, J CANFIELD, PC FISK, Z BARTLETT, RJ THOMPSON, JD TI TEMPERATURE-INVARIANT PHOTOELECTRON-SPECTRA IN CERIUM HEAVY-FERMION COMPOUNDS - INCONSISTENCIES WITH THE KONDO MODEL SO PHYSICAL REVIEW LETTERS LA English DT Article ID PHOTOEMISSION SPECTRA; ELECTRONIC-STRUCTURE; CE COMPOUNDS AB 4f levels in Ce heavy-fermion compounds are examined using resonant photoemission. We find the following inconsistencies with the predictions of the Kondo model: (a) All temperature dependence can be accounted for simply by phonon broadening and the Fermi function; (b) the spectral weights of the features near E(F) do not scale with T(K); and (c) the line shape of the feature previously identified as the Kondo resonance is Lorentzian and about an order of magnitude broader than predictions. Instrument resolution is not a limiting factor. C1 UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717. RP JOYCE, JJ (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545, USA. RI Canfield, Paul/H-2698-2014 NR 20 TC 115 Z9 115 U1 0 U2 3 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 JAN 13 PY 1992 VL 68 IS 2 BP 236 EP 239 DI 10.1103/PhysRevLett.68.236 PG 4 WC Physics, Multidisciplinary SC Physics GA GY703 UT WOS:A1992GY70300027 ER PT J AU LEDLOW, MJ BURNS, JO GISLER, GR ZHAO, JH ZEILIK, M BAKER, DN AF LEDLOW, MJ BURNS, JO GISLER, GR ZHAO, JH ZEILIK, M BAKER, DN TI SUBSURFACE EMISSIONS FROM MERCURY - VLA RADIO OBSERVATIONS AT 2 AND 6 CENTIMETERS SO ASTROPHYSICAL JOURNAL LA English DT Article DE PLANETS AND SATELLITES, INDIVIDUAL (MERCURY); RADIO CONTINUUM, SOLAR SYSTEM ID TEMPERATURES; WAVELENGTHS; SURFACE AB We present radio observations of Mercury made with the VLA; once in 1986, and on two dates in February of 1988. These observations are the first to spatially map both hot regions associated with the theoretical "hot poles." These "hot poles" are separated by 180-degrees and are a result of the unusual diurnal heating from Mercury's 3/2 spin-orbit resonance and eccentric orbit. Our highest resolution data maps areas of the planet as small as 330 km. We include maps of total intensity, brightness temperature, polarized intensity, fractional polarization, depolarization, and spectral index. We find that the subsurface thermal emissions from Mercury are characteristic of blackbody reradiation from the solar insolation over a diurnal cycle. We use these observations to produce full-disk thermophysical models. We have solved the one-dimensional, time-dependent heat-diffusion equation for all observed disk elements at each epoch in order to constrain thermophysical parameters and properties of the subsurface material. Using typical lunar values for several of the parameters, we are able to reproduce the temperature morphology and most of the observed temperature values. We do, however, find that the best-fit models require a substantial contribution of the heat transport in the subsurface to be radiative in nature. The primary difficulty in our models is in predicting the observed temperature differences as a function of frequency. C1 NEW MEXICO STATE UNIV,DEPT ASTRON,LAS CRUCES,NM 88003. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP LEDLOW, MJ (reprint author), UNIV NEW MEXICO,DEPT PHYS & ASTRON,ALBUQUERQUE,NM 87131, USA. NR 37 TC 21 Z9 21 U1 0 U2 3 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JAN 10 PY 1992 VL 384 IS 2 BP 640 EP 655 DI 10.1086/170906 PN 1 PG 16 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA GY758 UT WOS:A1992GY75800026 ER PT J AU DAWSON, S HABER, HE AF DAWSON, S HABER, HE TI HIGGS BOSON LOW-ENERGY THEOREMS AND THEIR APPLICATIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article AB We examine the Higgs boson low-energy theorems and their applications in the study of light Higgs boson interactions with mesons and baryons. In particular, we clarify how a new parameter (the A parameter) emerges when the chiral Lagrangian method is combined with the Higgs low-energy theorems to obtain predictions for the interaction of Higgs bosons and pseudoscalar mesons. The computation of the Higgs-nucleon coupling and the branching ratios for light Higgs boson production in the decays K --> pi-H and eta' --> eta-H are illustrated. RP DAWSON, S (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. NR 0 TC 10 Z9 10 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA JOURNAL DEPT PO BOX 128 FARRER ROAD, SINGAPORE 9128, SINGAPORE SN 0217-751X J9 INT J MOD PHYS A JI Int. J. Mod. Phys. A PD JAN 10 PY 1992 VL 7 IS 1 BP 107 EP 120 DI 10.1142/S0217751X92000065 PG 14 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA GY330 UT WOS:A1992GY33000005 ER PT J AU XIA, SD AF XIA, SD TI A POSSIBLE OPTICAL PHONON DECAY OF LOW-LYING ELECTRONIC CRYSTAL-FIELD STATES OF TMPO(4) CRYSTAL SO INTERNATIONAL JOURNAL OF MODERN PHYSICS B LA English DT Article AB We present in this paper an optical phonon (E(g)1-type) decay mechanism to explain the disappearance of two electronic lines at 248 cm-1 (GAMMA(4)) in experimental electronic Raman scattering spectrum of TmPO4 crystal. The E(g)1 phonon model of primitive cell is described in detail. The derivation and calculation of electrical-phonon coupling crystal-field Hamiltonian H(cf)c and the calculation of coupling matrix elements between the initial and final electron-phonon states are outlined and demonstrated. The various channels of this decay are discussed and estimated. RP XIA, SD (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720, USA. NR 0 TC 4 Z9 4 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA JOURNAL DEPT PO BOX 128 FARRER ROAD, SINGAPORE 9128, SINGAPORE SN 0217-9792 J9 INT J MOD PHYS B JI Int. J. Mod. Phys. B PD JAN 10 PY 1992 VL 6 IS 1 BP 59 EP 78 DI 10.1142/S0217979292000049 PG 20 WC Physics, Applied; Physics, Condensed Matter; Physics, Mathematical SC Physics GA HE788 UT WOS:A1992HE78800003 ER PT J AU ROLES, J GUIOCHON, G AF ROLES, J GUIOCHON, G TI PREDICTION OF THE ELUTION PROFILES OF HIGH-CONCENTRATION BANDS IN GAS-CHROMATOGRAPHY SO JOURNAL OF CHROMATOGRAPHY LA English DT Article ID LIQUID-CHROMATOGRAPHY; FINITE CONCENTRATION; NONLINEAR CHROMATOGRAPHY; IDEAL MODEL; PROPAGATION; SIMULATION; SIGNALS AB The prediction of band profiles in non-linear gas chromatography requires the use of a mass balance equation for the carrier gas and for the components of the feed. An additional equation is required to account for the non-linearity of the pressure profile and the compressibility of the gas phase. Thus, the sorption effect, which is insignificant in liquid chromatography, becomes of major importance in gas chromatography. Originating from the difference between the partial molar volumes of the retained components in the mobile and the stationary phases, this effect combines with the isotherm effect to control the elution profile of high-concentration bands. The influence of the various parameters which determine the relative intensity of the sorption and the isotherm effects is discussed and illustrated. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV ANALYT CHEM,OAK RIDGE,TN 37831. NR 29 TC 5 Z9 5 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0021-9673 J9 J CHROMATOGR PD JAN 10 PY 1992 VL 589 IS 1-2 BP 223 EP 230 DI 10.1016/0021-9673(92)80026-Q PG 8 WC Chemistry, Analytical SC Chemistry GA HB068 UT WOS:A1992HB06800025 ER PT J AU ELLMAN, JA MENDEL, D SCHULTZ, PG AF ELLMAN, JA MENDEL, D SCHULTZ, PG TI SITE-SPECIFIC INCORPORATION OF NOVEL BACKBONE STRUCTURES INTO PROTEINS SO SCIENCE LA English DT Article ID ENGINEERED DISULFIDE; TRANSFER-RNA; ACID; LYSOZYME; ELONGATION; STABILITY; ALPHA; BONDS AB A number of unnatural amino acids and amino acid analogs with modified backbone structures were substituted for alanine-82 in T4 lysozyme. Replacements included alpha,alpha-disubstituted amino acids, N-alkyl amino acids, and lactic acid, an isoelectronic analog of alanine. The effects of these electronic and structural perturbations on the stability of T4 lysozyme were determined. The relatively broad substrate specificity of the Escherichia coli protein biosynthetic machinery suggests that a wide range of backbone and side-chain substitutions can be introduced, allowing a more precise definition of the factors affecting protein stability. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CTR ADV MAT,BERKELEY,CA 94720. RI Ellman, Jonathan/C-7732-2013 NR 28 TC 171 Z9 174 U1 2 U2 27 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD JAN 10 PY 1992 VL 255 IS 5041 BP 197 EP 200 DI 10.1126/science.1553546 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA GY704 UT WOS:A1992GY70400036 PM 1553546 ER PT J AU PRATT, LR AF PRATT, LR TI CONTACT POTENTIALS OF SOLUTION INTERFACES - PHASE-EQUILIBRIUM AND INTERFACIAL ELECTRIC-FIELDS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID LIQUID-VAPOR INTERFACE; MOLECULAR-DYNAMICS SIMULATION; NEUTRON REFLECTION TEST; AIR-WATER-INTERFACE; SYNCHROTRON X-RAY; LIPID MONOLAYERS; DIPOLE-MOMENTS; VOLTAIC CELL; DIFFRACTION; SURFACES AB Calculations of the electric fields at the water liquid-vapor interface are used to motivate a general discussion of the electrostatic potential differences between conducting phases in equilibrium with respect to independent transport of charged species. A formula which requires only structural information on the interfacial charge density profile is presented for this contact (or surface) potential. In contrast to the purely thermodynamic basis for introduction of surface potentials, this surface structural perspective suggests that surface potentials are generally measurable quantities. The consistency between thermodynamic and structural definitions of the contact potential is discussed. Although a solvent contact potential can be defined and, in principle, measured, this solvent contact potential generally differs from the infinite dilution electrostatic potential difference involved in the thermodynamics of electrolyte solutions: ionic contributions to thermodynamic contact potentials do not vanish in the infinite dilution limit. In fact, if the solvent conductivity is negligible, then the limiting infinite dilution value of the contact potential depends on the compositional path chosen for the approach to infinite dilution. Further, although the contact potential can be identified with the total dipole moment of the charges in the interfacial regions, the defined solvent contribution to the contact potential is generally not determined only by the interfacial density profile of molecular dipole moments. Finally, it is suggested that electron (and positron) reflectivity experiments would provide the most direct attempt to measure contact potentials of solution interfaces, and some primitive aspects of such experiments are considered. RP PRATT, LR (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV CHEM & LASER SCI,LOS ALAMOS,NM 87545, USA. RI Pratt, Lawrence/H-7955-2012 OI Pratt, Lawrence/0000-0003-2351-7451 NR 106 TC 76 Z9 76 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 25 EP 33 DI 10.1021/j100180a010 PG 9 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700010 ER PT J AU TAO, W KLEMM, RB NESBITT, FL STIEF, LJ AF TAO, W KLEMM, RB NESBITT, FL STIEF, LJ TI A DISCHARGE FLOW-PHOTOIONIZATION MASS-SPECTROMETRIC STUDY OF HYDROXYMETHYL RADICALS (H2COH AND H2COD) - PHOTOIONIZATION SPECTRUM AND IONIZATION-ENERGY SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID ABSOLUTE RATE-CONSTANT; GAS-PHASE; PHOTOELECTRON-SPECTROSCOPY; IONS; CH3O; DISSOCIATION; CATIONS; CH2OH; TEMPERATURE; HEATS AB The photoionization spectrum of H2COH was measured over the wavelength range 140-170 nm by using a discharge flow-photoionization mass spectrometer apparatus with synchrotron radiation. Hydroxymethyl radicals (H2COH and H2COD) were generated in a flow tube by the reaction of F atoms with CH3OH(D). Ionization energies (IE) were determined directly from photoion thresholds. The IE values, 7.56 +/- 0.02 and 7.55 +/- 0.02 eV for H2COH and H2COD, respectively, are consistent with previous measurements. Also, the dissociative ionization process, presumed to be H3CO* --> HCO+ + H-2, was observed with a threshold at 8.61 +/- 0.06 eV. C1 BROOKHAVEN NATL LAB,BLDG 815,UPTON,NY 11973. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,EXTRATERR PHYS LAB,HUNTSVILLE,AL 35812. NR 49 TC 42 Z9 44 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 104 EP 107 DI 10.1021/j100180a023 PG 4 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700023 ER PT J AU SCHMIDT, KH HAN, P BARTELS, DM AF SCHMIDT, KH HAN, P BARTELS, DM TI TEMPERATURE-DEPENDENCE OF SOLVATED ELECTRON-DIFFUSION IN H2O AND D2O SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID MOLECULAR-DYNAMICS SIMULATION; HYDRATED ELECTRON; PULSE-RADIOLYSIS; QUANTUM SIMULATION; AQUEOUS-SOLUTIONS; LIQUID SOLUTIONS; RATE CONSTANTS; WATER; CONDUCTANCE; RADICALS AB We present new measurements of hydrated electron mobility in both H2O and D2O for the full liquid temperature range at atmospheric pressure. Transient conductivity signals were measured following pulse radiolysis of aqueous alkaline solutions with 16-MeV electrons. The conductivity signal is proportional to the difference in specific conductance of the electron and the hydroxide (or deuteroxide) ion. To evaluate the signals in heavy water, ancillary measurements of the electron radiolysis yield vs temperature were made. The specific conductance of OD- in heavy water is estimated using (light water) transfer numbers and tabulated here for the first time. In H2O, the hydrated electron specific conductivity is found to be 184.0 +/- 0.7 S cm2 at 298 K, giving a diffusion coefficient of (4.90 +/- 0.02) x 10(-5) cm2/s with an average activation energy in the temperature range 15-90-degrees-C of 4.81 +/- 0.03 kcal/mol, in good agreement with previous results. In D2O the diffusion coefficient is (3.88 +/- 0.03) x 10(-5) cm2/s at 298 K and has approximately the same activation energy (4.69 +/- 0.04 kcal/mol). In comparison with classical ions, the electron diffusion has a higher activation energy, a more linear Arrhenius plot, and a slightly larger H2O/D2O isotope effect. We suggest that these differences can be explained in terms of the essentially instantaneous adiabatic response of electrons to solvent librational motions coupled with the fast dielectric relaxation of water. The electron mobility in simple alcohols is apparently not enhanced because alcohol molecules cannot respond quickly enough to high-frequency distortions of the electron charge distribution. C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 66 TC 65 Z9 65 U1 0 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 199 EP 206 DI 10.1021/j100180a039 PG 8 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700039 ER PT J AU LIU, AD TRIFUNAC, AD KRONGAUZ, VV AF LIU, AD TRIFUNAC, AD KRONGAUZ, VV TI PHOTODISSOCIATION OF HEXAARYLBIIMIDAZOLE .2. DIRECT AND SENSITIZED DISSOCIATION SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID TRIARYLIMIDAZOLYL FREE RADICALS AB Photodissociation of a widely used photopolymerization initiator, 2-chlorohexaarylbiimidazole (omicron-Cl-HABI), is studied in dichloromethane solution in the absence and presence of the visible light photosensitizing dye, 2,5-bis[(2,3,6,7-tetrahydro-1H,5H-benzo[ij]quinolizin-1-yl) methylene]cyclopentanone (JAW). Laser flash photolysis at 480 nm is employed. In the absence of JAW, the omicron-Cl-HABI dissociates into triarylimidazolyl radicals (L.). In the presence of JAW, an increase in L. formation is observed. The mechanism of this photosensitization of dissociation is explored. It is concluded that this increase occurs by the dissociation of the omicron-Cl-HABI radical anion formed by electron transfer from the excited singlet state of JAW to omicron-Cl-HABI. The observed formation of L. radicals exhibits a linear dependence on omicron-Cl-HABI concentration. The rate constant of electron transfer obtained from this dependence is equal to (2.2 +/- 0.4) x 10(9) M-1 s-1. No reaction between the excited triplet state of JAW and omicron-Cl-HABI is found. C1 ARGONNE NATL LAB, DIV CHEM, ARGONNE, IL 60439 USA. DUPONT CO, EXPTL STN LAB, IMAGING RES & DEV, WILMINGTON, DE 19880 USA. NR 24 TC 48 Z9 50 U1 2 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 207 EP 211 DI 10.1021/j100180a040 PG 5 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700040 ER PT J AU BARNABAS, MV LIU, AD TRIFUNAC, AD KRONGAUZ, VV CHANG, CT AF BARNABAS, MV LIU, AD TRIFUNAC, AD KRONGAUZ, VV CHANG, CT TI SOLVENT EFFECTS ON THE PHOTOCHEMISTRY OF A KETOCYANINE DYE AND ITS FUNCTIONAL ANALOG, MICHLERS KETONE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID PHOTOPHYSICS AB Spectral properties of a photosensitizer, a ketocyanine dye, 2,5-bis{[4-(diethylamino)phenyl]methylene}cyclopentanone DEAW, were examined in seven different solvents. The absorption and emission spectra, transient absorption spectra, and conductivity data are reported. Extinction coefficient of the triplet-triplet absorption is calculated using the singlet depletion method. The quantum yield of the triplet state is calculated and is found to have a value from 0.01 to 0.60 in different solvents studied using both 308- and 480-nm pulsed laser excitations. The quantum yield of fluorescence is also reported. The dipole moment of the excited singlet state is calculated using the energy gap between the absorption and emission bands in different solvents of similar refractive indices. Comparison is made with Michler's ketone (MK) in the discussion of photochemical processes because of the similarity in the structures of DEAW and MK, the only difference being the extended conjugation introduced by the methylene groups along with the cyclopentanone in DEAW. C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. DUPONT CO,EXPTL STN,IMAGING SYST,WILMINGTON,DE 19880. NR 14 TC 41 Z9 41 U1 2 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 212 EP 217 DI 10.1021/j100180a041 PG 6 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700041 ER PT J AU ZHOU, XL LEE, YN AF ZHOU, XL LEE, YN TI AQUEOUS SOLUBILITY AND REACTION-KINETICS OF HYDROXYMETHYL HYDROPEROXIDE SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID HYDROGEN-PEROXIDE; PEROXYACETIC ACID; STRATIFORM CLOUD; SULFUR-DIOXIDE; GAS-PHASE; LOW PH; AIR; OXIDATION; OZONE; WATER AB The aqueous-phase equilibria and kinetics of the formation of hydroxymethyl hydroperoxide (HMP) and of bis(hydroxymethyl) peroxide (BHMP) from formaldehyde and hydrogen peroxide, i.e., H2CO + H2O2 reversible HOCH2O2H (1, -1), and HOCH2O2H + H2CO if and only if HOCH2O2CH2OH (2) were studied using an amperometric technique which is highly sensitive and selective for H2O2. The equilibrium constants of reactions 1 and 2 between 5 and 35-degrees-C were determined to be K1 = 2.35 x 10(-2) exp(2610/T) M-1 and K2 = 1.04 x 10(-3) exp(2780/T) M-1, respectively, both independent of pH between 4.0 and 8.4. The rate coefficients of (1) and (-1) determined at pH 7.07 +/- 0.02 between 5 and 35-degrees-C are k1 = 6.0 x 10(13) exp(-9450/T) M-1 s-1 and k-1 = 1.0 x 10(15) exp(-11800/T) s-1. Both k1 and k-1 are base-catalyzed and are linearly dependent on pH between 4.0 and 8.2, namely, k-1 = (5.0 +/- 0.3) x 10(-10)/[H+] s-1 at 25.8 +/- 0.1-degrees-C. The Henry's law constants of HMP and BHMP, determined by measuring their corresponding gas and aqueous concentrations at phase equilibrium, are 5.0(-0.9)+16 x 10(5) and 6(-2)+3 x 10(5) M atm-1 at 22.0 +/- 0.1-degrees-C, and 6.2(-0.9)+1.2 x 10(5) and 20(-7)+18 x 10(5) M atm-1 at 10.0 +/- 0.1-degrees-C, respectively. The reaction kinetics of HMP with S(IV) was studied by a competition technique using the H2O2-S(IV) reaction as the reference; the reaction is acid-catalyzed, with an effective second-order rate constant of (2.2 x 10(7))[H+] +/- 15% M-1 s-1 for the pH range 3-4 at 22.0 +/- 0.1-degrees-C. These results indicte that gas-phase HMP in the atmosphere is efficiently removed by wet scavenging processes and would be quantitatively detected by peroxide instruments involving gas-liquid scrubbers, provided that the scrubbed HMP is stabilized. The time constant of the dissociation of dissolved HMP to H2O2 is fairly short, being approximately 100 min at pH 5.5, shorter at higher pH. Consequently, HMP is expected to be stable and detected in atmospheric liquid water only at pH less-than-or-equal-to 5.5. C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,DIV ENVIRONM CHEM,UPTON,NY 11973. NR 41 TC 62 Z9 64 U1 2 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 265 EP 272 DI 10.1021/j100180a051 PG 8 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700051 ER PT J AU ALLENDORF, MD MELIUS, CF AF ALLENDORF, MD MELIUS, CF TI THEORETICAL-STUDY OF THE THERMOCHEMISTRY OF MOLECULES IN THE SI-C-H SYSTEM SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID CHEMICAL VAPOR-DEPOSITION; SILICON-CONTAINING COMPOUNDS; BOND-DISSOCIATION ENERGY; RATE CONSTANTS; ELECTRONEGATIVITY SCALE; ALKYLSILANE DERIVATIVES; THERMAL-DECOMPOSITION; PREDICTED ENTHALPIES; INSERTION REACTIONS; SILYLENE REACTIONS AB Ab initio electronic structure calculations coupled with empirical corrections are used to obtain a self-consistent set of heats of formation for molecules in the series HnSi(CH3)m and HnSiCHm (n, m = 0-4). Heats of formation are also reported for silylethylenes and silylacetylenes in the series H2C = CHSiHn and HC = CSiHn (n = 0-3), and for H(CH3)Si = CH2, (CH3)2Si = CH2, and 1,2-dimethyldisilane. Gibbs free energies as a function of temperature and standard entropies are given for all molecules in the study. RP ALLENDORF, MD (reprint author), SANDIA NATL LABS, COMBUST RES FACIL, LIVERMORE, CA 94551 USA. NR 64 TC 100 Z9 100 U1 1 U2 8 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD JAN 9 PY 1992 VL 96 IS 1 BP 428 EP 437 DI 10.1021/j100180a080 PG 10 WC Chemistry, Physical SC Chemistry GA GZ697 UT WOS:A1992GZ69700080 ER PT J AU CASEY, WH WESTRICH, HR AF CASEY, WH WESTRICH, HR TI CONTROL OF DISSOLUTION RATES OF ORTHOSILICATE MINERALS BY DIVALENT METAL OXYGEN BONDS SO NATURE LA English DT Article ID MECHANISM AB COMMON rock- and soil-forming minerals are complicated structures of varying composition. Despite some encouraging progress 1,2 there is as vet no comprehensive rationale for predicting the dissolution rates of these minerals. Here we test the hypothesis 3 that dissolution rates of compositionally distinct orthosilicate minerals scale in a fashion similar to rates of water exchange around the corresponding dissolved, divalent cation. Although dissolution rates span several orders of magnitude, the hypothesis is sustained. Minerals containing alkaline-earth cations dissolve at rates that correlate with ionic size, whereas minerals containing first-row transition metals dissolve at rates that vary with the number of cation d-electrons. Both types of behaviour are consistent with the control of dissolution rate by the character of the bonds between the divalent cation and neighbouring oxygen atoms. This result supports the proposed link 3-6 between the mechanisms of mineral dissolution and the mechanisms by which a dissolved metal exchanges ligands. With this link it may be possible to predict dissolution rates for other nearly isostructural minerals that vary in composition. C1 SANDIA NATL LABS,GEOCHEM RES,ALBUQUERQUE,NM 87185. RP CASEY, WH (reprint author), UNIV CALIF DAVIS,DAVIS,CA 95616, USA. NR 15 TC 103 Z9 104 U1 2 U2 16 PU MACMILLAN MAGAZINES LTD PI LONDON PA PORTERS SOUTH, 4 CRINAN ST, LONDON, ENGLAND N1 9XW SN 0028-0836 J9 NATURE JI Nature PD JAN 9 PY 1992 VL 355 IS 6356 BP 157 EP 159 DI 10.1038/355157a0 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA GY629 UT WOS:A1992GY62900056 ER PT J AU ABREU, P ADAM, W ADAMI, F ADYE, T AKESSON, T ALEKSEEV, GD ALLEN, P ALMEHED, S ALVSVAAG, SJ AMALDI, U ANASSONTZIS, E ANTILOGUS, P APEL, WD APSIMON, RJ ASMAN, B ASTIER, P AUGUSTIN, JE AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R BARBIELLINI, G BARDIN, DY BARONCELLI, A BARRING, O BARTL, W BATES, MJ BATTAGLIA, M BAUBILLIER, M BECKS, KH BEESTON, CJ BEGALLI, M BEILLIERE, P BELOKOPYTOV, Y BELTRAN, P BENEDIC, D BENLLOCH, JM BERGGREN, M BERTRAND, D BIANCHI, F BILENKY, MS BILLOIR, P BJARNE, J BLOCH, D BLYTH, S BOCCI, V BOGOLUBOV, PN BOLOGNESE, T BONAPART, M BONESINI, M BONIVENTO, W BOOTH, PSL BORATAV, M BORGEAUD, P BORISOV, G BORNER, H BOSIO, C BOSTJANCIC, B BOTNER, O BOUQUET, B BOURDARIOS, C BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRICMAN, C BROWN, RCA BRUMMER, N BRUNET, JM BUGGE, L BURAN, T BURMEISTER, H BUYTAERT, JAMA CACCIA, M CALVI, M ROZAS, AJC CAMPION, A CAMPORESI, T CANALE, V CAO, F CARENA, F CARROLL, L CASO, C CASTELLI, E GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L CHAN, A CHAPKIN, M CHARPENTIER, P CHAUSSARD, L CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P CHOROWICZ, V CIRIO, R CLARA, MP COLLINS, P CONTRERAS, JL CONTRI, R COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G CROZON, M MAESTRO, JC CZELLAR, S DAGORET, S DAHLJENSEN, E DALMAGNE, B DAM, M DAMGAARD, G DARBO, G DAUBIE, E DAUNCEY, PD DAVENPORT, M DAVID, P DEFOIX, C DELIKARIS, D DELORME, S DELPIERRE, P DEMARIA, N DEANGELIS, A DEBEER, M DEBOECK, H DEBOER, W DECLERCQ, C LASO, MDMD DEGROOT, N DELAVAISSIERE, C DELOTTO, B DEMIN, A DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J DOLL, O DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M DUFOUR, Y DULINSKI, W DZHELYADIN, R EEK, LO EEROLA, PAM EKELOF, T EKSPONG, G PEISERT, AE ENGEL, JP FASSOULIOTIS, D FEINDT, M ALONSO, MF FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E FOLEGATI, P FONTANELLI, F FORBES, KAJ FORSBACH, H FRANEK, B FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURNIVAL, K FURSTENAU, H FUSTER, J GALEAZZI, G GAMBA, D GARCIA, C GARCIA, J GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GLITZA, KW GOKIELI, R GOLOVATYUK, VM CADENAS, JJGY GOOBAR, A GOPAL, G GORSKI, M GRACCO, V GRANT, A GRARD, F GRAZIANI, E GROSDIDIER, G GROSS, E GROSSEWIESMANN, P GROSSETETE, B GUY, J HAHN, F HAHN, M HAIDER, S HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K DEMONCHENAULT, GH HARRIS, FJ HECK, BW HENKES, T HERBST, I HERNANDEZ, JJ HERQUET, P HERR, H HIETANEN, I HIGGINS, CO HIGON, E HILKE, HJ HODGSON, SD HOFMOKL, T HOLMES, R HOLMGREN, SO HOLTHUIZEN, D HONORE, PF HOOPER, JE HOULDEN, M HRUBEC, J HULTH, PO HULTQVIST, K HUSSON, D IOANNOU, P ISENHOWER, D IVERSEN, PS JACKSON, JN JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JOHNSON, D JONKER, M JONSSON, L JUILLOT, P KALKANIS, G KALMUS, G KAPUSTA, F KATSANEVAS, S KATSOUFIS, EC KERANEN, R KESTEMAN, J KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLEMPT, W KLOVNING, A KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P KOPF, M KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIUKHIN, V KOURKOUMELIS, C KREUZBERGER, T KROLIKOWSKI, J KRONKVIST, I KRSTIC, J KRUENERMARQUIS, U KRUPINSKI, W KUCEWICZ, W KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LAPIN, V LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LETESSIERSELVON, A LIEB, E LIKO, D LILLETHUN, E LINDGREN, J LIPNIACKA, A LIPPI, I LLOSA, R LOERSTAD, B LOKAJICEK, M LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOUNIS, A LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAGNUSSEN, N MAILLARD, J MALTEZOS, A MANDL, F MARCO, J MARGONI, M MARIN, JC MARKOU, A MARTI, S MATHIS, L MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MENICHETTI, E MEOLA, G MERONI, C MEYER, WT MICHELOTTO, M MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAUKORZEN, U NAVARRIA, FL NEGRI, P NIELSEN, BS NIJJHAR, B NIKOLAENKO, V OBRAZTSOV, V OESTERBERG, K OLSHEVSKI, AG ORAVA, R OSTANKOV, A OURAOU, A PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, T PAPE, L PASSERI, A PEGORARO, M PENNANEN, J PEREVOZCHIKOV, V PERNICKA, M PERROTTA, A PIERRE, F PIMENTA, M PINGOT, O POL, ME POLOK, G POROPAT, P PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RATOFF, PN READ, AL REDAELLI, NG REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, M RIDKY, J RINAUDO, G RODITI, I ROMERO, A RONCAGLIOLO, I RONCHESE, P RONNQVIST, C ROSENBERG, EI ROSSI, U ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W RUHLMANN, V RUIZ, A RYBICKI, K SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J SANCHEZ, E SANCHEZ, J SANNINO, M SCHAEFFER, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCURI, F SEGAR, AM SEKULIN, R SESSA, M SETTE, G SEUFERT, R SHELLARD, RC SIEGRIST, P SIMONETTI, S SIMONETTO, F SISSAKIAN, AN SKAALI, TB SKJEVLING, G SMADJA, G SMIRNOV, N SMITH, GR SOSNOWSKI, R SPASSOFF, TS SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAVROPOULOS, G STICHELBAUT, F STOCCHI, A STRAUSS, J STRUB, R SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P TABARELLI, T TAVERNIER, S TCHIKILEV, O THEODOSIOU, GE TILQUIN, A TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOKER, O TORASSA, E TORTORA, L TRAINOR, MT TREILLE, D TREVISAN, U TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M TURCHETTA, R TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDONINCK, WK VARELA, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERTOGRADOV, LS VIBERT, L VILANOVA, D VITALE, L VLASOV, E VLASOV, EV VLASSOPOULOS, S VODOPYANOV, AS VOLLMER, M VOLPONI, S VOULGARIS, G VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F WAYNE, M WEILHAMMER, P WERNER, J WETHERELL, AM WICKENS, JH WIKNE, J WILKINSON, GR WILLIAMS, WSC WINTER, M WORMALD, D WORMSER, G WOSCHNAGG, K YAMDAGNI, N YEPES, P ZAITSEV, A ZALEWSKA, A ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E ZHANG, G ZIMIN, NI ZITO, M ZITOUN, R FUNCHAL, RZ ZUMERLE, G ZUNIGA, J AF ABREU, P ADAM, W ADAMI, F ADYE, T AKESSON, T ALEKSEEV, GD ALLEN, P ALMEHED, S ALVSVAAG, SJ AMALDI, U ANASSONTZIS, E ANTILOGUS, P APEL, WD APSIMON, RJ ASMAN, B ASTIER, P AUGUSTIN, JE AUGUSTINUS, A BAILLON, P BAMBADE, P BARAO, F BARATE, R BARBIELLINI, G BARDIN, DY BARONCELLI, A BARRING, O BARTL, W BATES, MJ BATTAGLIA, M BAUBILLIER, M BECKS, KH BEESTON, CJ BEGALLI, M BEILLIERE, P BELOKOPYTOV, Y BELTRAN, P BENEDIC, D BENLLOCH, JM BERGGREN, M BERTRAND, D BIANCHI, F BILENKY, MS BILLOIR, P BJARNE, J BLOCH, D BLYTH, S BOCCI, V BOGOLUBOV, PN BOLOGNESE, T BONAPART, M BONESINI, M BONIVENTO, W BOOTH, PSL BORATAV, M BORGEAUD, P BORISOV, G BORNER, H BOSIO, C BOSTJANCIC, B BOTNER, O BOUQUET, B BOURDARIOS, C BOZZO, M BRAIBANT, S BRANCHINI, P BRAND, KD BRENNER, RA BRICMAN, C BROWN, RCA BRUMMER, N BRUNET, JM BUGGE, L BURAN, T BURMEISTER, H BUYTAERT, JAMA CACCIA, M CALVI, M ROZAS, AJC CAMPION, A CAMPORESI, T CANALE, V CAO, F CARENA, F CARROLL, L CASO, C CASTELLI, E GIMENEZ, MVC CATTAI, A CAVALLO, FR CERRITO, L CHAN, A CHAPKIN, M CHARPENTIER, P CHAUSSARD, L CHECCHIA, P CHELKOV, GA CHEVALIER, L CHLIAPNIKOV, P CHOROWICZ, V CIRIO, R CLARA, MP COLLINS, P CONTRERAS, JL CONTRI, R COSME, G COUCHOT, F CRAWLEY, HB CRENNELL, D CROSETTI, G CROZON, M MAESTRO, JC CZELLAR, S DAGORET, S DAHLJENSEN, E DALMAGNE, B DAM, M DAMGAARD, G DARBO, G DAUBIE, E DAUNCEY, PD DAVENPORT, M DAVID, P DEFOIX, C DELIKARIS, D DELORME, S DELPIERRE, P DEMARIA, N DEANGELIS, A DEBEER, M DEBOECK, H DEBOER, W DECLERCQ, C LASO, MDMD DEGROOT, N DELAVAISSIERE, C DELOTTO, B DEMIN, A DIJKSTRA, H DICIACCIO, L DJAMA, F DOLBEAU, J DOLL, O DONSZELMANN, M DOROBA, K DRACOS, M DREES, J DRIS, M DUFOUR, Y DULINSKI, W DZHELYADIN, R EEK, LO EEROLA, PAM EKELOF, T EKSPONG, G PEISERT, AE ENGEL, JP FASSOULIOTIS, D FEINDT, M ALONSO, MF FERRER, A FILIPPAS, TA FIRESTONE, A FOETH, H FOKITIS, E FOLEGATI, P FONTANELLI, F FORBES, KAJ FORSBACH, H FRANEK, B FRENKIEL, P FRIES, DC FRODESEN, AG FRUHWIRTH, R FULDAQUENZER, F FURNIVAL, K FURSTENAU, H FUSTER, J GALEAZZI, G GAMBA, D GARCIA, C GARCIA, J GASPAR, C GASPARINI, U GAVILLET, P GAZIS, EN GERBER, JP GIACOMELLI, P GLITZA, KW GOKIELI, R GOLOVATYUK, VM CADENAS, JJGY GOOBAR, A GOPAL, G GORSKI, M GRACCO, V GRANT, A GRARD, F GRAZIANI, E GROSDIDIER, G GROSS, E GROSSEWIESMANN, P GROSSETETE, B GUY, J HAHN, F HAHN, M HAIDER, S HAJDUK, Z HAKANSSON, A HALLGREN, A HAMACHER, K DEMONCHENAULT, GH HARRIS, FJ HECK, BW HENKES, T HERBST, I HERNANDEZ, JJ HERQUET, P HERR, H HIETANEN, I HIGGINS, CO HIGON, E HILKE, HJ HODGSON, SD HOFMOKL, T HOLMES, R HOLMGREN, SO HOLTHUIZEN, D HONORE, PF HOOPER, JE HOULDEN, M HRUBEC, J HULTH, PO HULTQVIST, K HUSSON, D IOANNOU, P ISENHOWER, D IVERSEN, PS JACKSON, JN JALOCHA, P JARLSKOG, G JARRY, P JEANMARIE, B JOHANSSON, EK JOHNSON, D JONKER, M JONSSON, L JUILLOT, P KALKANIS, G KALMUS, G KAPUSTA, F KATSANEVAS, S KATSOUFIS, EC KERANEN, R KESTEMAN, J KHOMENKO, BA KHOVANSKI, NN KING, B KJAER, NJ KLEIN, H KLEMPT, W KLOVNING, A KLUIT, P KOCHMEHRIN, A KOEHNE, JH KOENE, B KOKKINIAS, P KOPF, M KORATZINOS, M KORCYL, K KORYTOV, AV KOSTIUKHIN, V KOURKOUMELIS, C KREUZBERGER, T KROLIKOWSKI, J KRONKVIST, I KRSTIC, J KRUENERMARQUIS, U KRUPINSKI, W KUCEWICZ, W KURVINEN, K LACASTA, C LAMBROPOULOS, C LAMSA, JW LANCERI, L LAPIN, V LAUGIER, JP LAUHAKANGAS, R LEDER, G LEDROIT, F LEITNER, R LEMOIGNE, Y LEMONNE, J LENZEN, G LEPELTIER, V LETESSIERSELVON, A LIEB, E LIKO, D LILLETHUN, E LINDGREN, J LIPNIACKA, A LIPPI, I LLOSA, R LOERSTAD, B LOKAJICEK, M LOKEN, JG LOPEZFERNANDEZ, A AGUERA, MAL LOS, M LOUKAS, D LOUNIS, A LOZANO, JJ LUTZ, P LYONS, L MAEHLUM, G MAGNUSSEN, N MAILLARD, J MALTEZOS, A MANDL, F MARCO, J MARGONI, M MARIN, JC MARKOU, A MARTI, S MATHIS, L MATORRAS, F MATTEUZZI, C MATTHIAE, G MAZZUCATO, M MCCUBBIN, M MCKAY, R MCNULTY, R MENICHETTI, E MEOLA, G MERONI, C MEYER, WT MICHELOTTO, M MITAROFF, WA MITSELMAKHER, GV MJOERNMARK, U MOA, T MOELLER, R MOENIG, K MONGE, MR MORETTINI, P MUELLER, H MURRAY, WJ MURYN, B MYATT, G NARAGHI, F NAUKORZEN, U NAVARRIA, FL NEGRI, P NIELSEN, BS NIJJHAR, B NIKOLAENKO, V OBRAZTSOV, V OESTERBERG, K OLSHEVSKI, AG ORAVA, R OSTANKOV, A OURAOU, A PAGANONI, M PAIN, R PALKA, H PAPADOPOULOU, T PAPE, L PASSERI, A PEGORARO, M PENNANEN, J PEREVOZCHIKOV, V PERNICKA, M PERROTTA, A PIERRE, F PIMENTA, M PINGOT, O POL, ME POLOK, G POROPAT, P PRIVITERA, P PULLIA, A RADOJICIC, D RAGAZZI, S RATOFF, PN READ, AL REDAELLI, NG REGLER, M REID, D RENTON, PB RESVANIS, LK RICHARD, F RICHARDSON, M RIDKY, J RINAUDO, G RODITI, I ROMERO, A RONCAGLIOLO, I RONCHESE, P RONNQVIST, C ROSENBERG, EI ROSSI, U ROSSO, E ROUDEAU, P ROVELLI, T RUCKSTUHL, W RUHLMANN, V RUIZ, A RYBICKI, K SAARIKKO, H SACQUIN, Y SAJOT, G SALT, J SANCHEZ, E SANCHEZ, J SANNINO, M SCHAEFFER, M SCHAEL, S SCHNEIDER, H SCHYNS, MAE SCURI, F SEGAR, AM SEKULIN, R SESSA, M SETTE, G SEUFERT, R SHELLARD, RC SIEGRIST, P SIMONETTI, S SIMONETTO, F SISSAKIAN, AN SKAALI, TB SKJEVLING, G SMADJA, G SMIRNOV, N SMITH, GR SOSNOWSKI, R SPASSOFF, TS SPIRITI, E SQUARCIA, S STAECK, H STANESCU, C STAVROPOULOS, G STICHELBAUT, F STOCCHI, A STRAUSS, J STRUB, R SZCZEKOWSKI, M SZEPTYCKA, M SZYMANSKI, P TABARELLI, T TAVERNIER, S TCHIKILEV, O THEODOSIOU, GE TILQUIN, A TIMMERMANS, J TIMOFEEV, VG TKATCHEV, LG TODOROV, T TOET, DZ TOKER, O TORASSA, E TORTORA, L TRAINOR, MT TREILLE, D TREVISAN, U TRISCHUK, W TRISTRAM, G TRONCON, C TSIROU, A TSYGANOV, EN TURALA, M TURCHETTA, R TURLUER, ML TUUVA, T TYAPKIN, IA TYNDEL, M TZAMARIAS, S UEBERSCHAER, B UEBERSCHAER, S ULLALAND, O UVAROV, V VALENTI, G VALLAZZA, E FERRER, JAV VANDERVELDE, C VANAPELDOORN, GW VANDAM, P VANDONINCK, WK VARELA, J VAZ, P VEGNI, G VENTURA, L VENUS, W VERBEURE, F VERTOGRADOV, LS VIBERT, L VILANOVA, D VITALE, L VLASOV, E VLASOV, EV VLASSOPOULOS, S VODOPYANOV, AS VOLLMER, M VOLPONI, S VOULGARIS, G VOUTILAINEN, M VRBA, V WAHLEN, H WALCK, C WALDNER, F WAYNE, M WEILHAMMER, P WERNER, J WETHERELL, AM WICKENS, JH WIKNE, J WILKINSON, GR WILLIAMS, WSC WINTER, M WORMALD, D WORMSER, G WOSCHNAGG, K YAMDAGNI, N YEPES, P ZAITSEV, A ZALEWSKA, A ZALEWSKI, P ZAVRTANIK, D ZEVGOLATAKOS, E ZHANG, G ZIMIN, NI ZITO, M ZITOUN, R FUNCHAL, RZ ZUMERLE, G ZUNIGA, J TI SEARCHES FOR HEAVY NEUTRINOS FROM Z-DECAYS SO PHYSICS LETTERS B LA English DT Article ID Z-PEAK; LEPTONS; RESONANCE; LIMITS; QUARKS AB We have searched for possible fourth family heavy neutrinos, pair produced in Z0 decays, in a sample of about 112 000 hadronic Z0 final states collected with the DELPHI detector. For all mixing matrix elements we exclude a new Dirac neutrino lighter than 44.5 GeV at a 95% confidence level, if the neutrino couples to the electron or muon family, and lighter than 44.0 GeV, if the neutrino couples to the tau family. Depending on the values of the mixing element and to which lepton family the neutrino couples, we obtain mass limits up to 46.2 GeV. For all mixing matrix elements we exclude a new Majorana neutrino lighter than 39.0 GeV, if it couples to the electron or the muon family, and lighter than 38.2 GeV, if it couples to the tau family. Depending on the values of the mixing matrix element and to which lepton family the neutrino couples, we obtain mass limits up to 44.7 GeV. We also exclude stable new Dirac neutrinos lighter than 45.0 GeV and new Majorana neutrinos lighter than 39.5 GeV. C1 AUSTRIAN ACAD SCI,INST HOCHENERGIEPHYS,A-1050 VIENNA,AUSTRIA. CENS,DPHPE,F-91191 GIF SUR YVETTE,FRANCE. RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND. UNIV LUND,DEPT PHYS,S-22363 LUND,SWEDEN. DUBNA JOINT NUCL RES INST,DUBNA 101000,USSR. UNIV VALENCIA,CSIC,CTR MIXTO,INST FIS CORPUSCULAR,E-46100 VALENCIA,SPAIN. UNIV VALENCIA,DEPT FIS ATOM MOLEC & NUCL,E-46100 VALENCIA,SPAIN. UNIV BERGEN,DEPT PHYS,N-5007 BERGEN,NORWAY. CERN,CH-1211 GENEVA 23,SWITZERLAND. UNIV ATHENS,PHYS LAB,GR-10680 ATHENS,GREECE. UNIV LYON 1,F-69622 VILLEURBANNE,FRANCE. UNIV KARLSRUHE,INST EXPTL KERNPHYS,W-7500 KARLSRUHE 1,GERMANY. UNIV STOCKHOLM,INST PHYS,S-11346 STOCKHOLM,SWEDEN. UNIV PARIS 06,LPNHE,F-75230 PARIS 05,FRANCE. UNIV PARIS 07,LPNHE,F-75221 PARIS 05,FRANCE. UNIV PARIS 11,ACCELERATEUR LINEAIRE LAB,F-91405 ORSAY,FRANCE. NIKHEF H,1009 DB AMSTERDAM,NETHERLANDS. UNIV GRENOBLE 1,INST SCI NUCL,F-38026 GRENOBLE,FRANCE. UNIV TRIESTE,DIPARTMENTO FIS,I-34127 TRIESTE,ITALY. IST NAZL FIS NUCL,TRIESTE,ITALY. UNIV UDINE,IST FIS,I-33100 UDINE,ITALY. IST NAZL FIS NUCL,IST SUPER SANITA,I-00161 ROME,ITALY. UNIV OXFORD,NUCL PHYS LAB,OXFORD OX1 3RH,ENGLAND. UNIV MILAN,DIPARTMENTO FIS,I-20133 MILAN,ITALY. IST NAZL FIS NUCL,I-20133 MILAN,ITALY. UNIV GESAMTHSCH WUPPERTAL,FACHBEREICH PHYS,W-5600 WUPPERTAL 1,GERMANY. UNIV GENOA,DIPARTIMENTO FIS,I-16146 GENOA,ITALY. IST NAZL FIS NUCL,I-16146 GENOA,ITALY. COLL FRANCE,PHYS CORPUSCULAIRE LAB,F-75231 PARIS 05,FRANCE. SERPUKHOV HIGH ENERGY PHYS INST,SERPUKHOV 142284,USSR. NCSR DEMOKRITOS,INST NUCL PHYS,GR-15310 ATHENS,GREECE. CTR RECH NUCL,DIV HAUTES ENERGIES,GRP DELPHI,F-67037 STRASBOURG,FRANCE. LEPSI,F-67037 STRASBOURG,FRANCE. UNIV INSTELLING ANTWERP,DEPT PHYS,B-2610 WILRIJK,BELGIUM. UNIV LIBRE BRUXELLES,B-1050 BRUSSELS,BELGIUM. UNIV ETAT MONS,FAC SCI,PHYS PARTICULES ELEMENTAIRES SERV,B-7000 MONS,BELGIUM. UNIV TURIN,DIPARTIMENTO FIS SPERIMENTALE,I-10125 TURIN,ITALY. IST NAZL FIS NUCL,I-10125 TURIN,ITALY. UNIV ROME 2,DIPARTIMENTO FIS,I-00173 ROME,ITALY. IST NAZL FIS NUCL,I-00173 ROME,ITALY. UNIV LIVERPOOL,DEPT PHYS,LIVERPOOL L69 3BX,ENGLAND. UNIV UPPSALA,DEPT RADIAT SCI,S-75121 UPPSALA,SWEDEN. UNIV PADUA,DIPARTMENTO FIS,I-35131 PADUA,ITALY. IST NAZL FIS NUCL,I-35131 PADUA,ITALY. UNIV HELSINKI,DEPT HIGH ENERGY PHYS,SF-00710 HELSINKI 71,FINLAND. UNIV OSLO,DEPT PHYS,N-1000 OSLO 3,NORWAY. UNIV SANTANDER,FAC CIENCIAS,E-39005 SANTANDER,SPAIN. UNIV BOLOGNA,DIPARTMENTO FIS,I-40126 BOLOGNA,ITALY. IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY. IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011. UNIV COMPLUTENSE,E-28040 MADRID,SPAIN. NIELS BOHR INST,DK-2100 COPENHAGEN O,DENMARK. UNIV WARSAW,PL-00681 WARSAW,POLAND. INST NUCL RES,PL-00681 WARSAW 91,POLAND. NATL TECH UNIV ATHENS,DEPT PHYS,GR-15773 ATHENS,GREECE. INST NUCL PHYS,HIGH ENERGY PHYS LAB,PL-30055 KRAKOW 30,POLAND. UNIV LANCASTER,SCH PHYS & MAT,LANCASTER LA1 4YB,ENGLAND. UNIV AIX MARSEILLE 2,F-13288 MARSEILLE 09,FRANCE. RP ABREU, P (reprint author), LIP,AVE ELIAS GARCIA 14-LE,P-1000 LISBON,PORTUGAL. RI de Groot, Nicolo/A-2675-2009; Katsanevas, Stavros/A-4297-2011; Ruiz, Alberto/E-4473-2011; branchini, paolo/A-4857-2011; Shellard, Ronald/G-4825-2012; Marti-Garcia, Salvador/F-3085-2011; Torassa, Ezio/I-1788-2012; Giacomelli, Paolo/B-8076-2009; Fruhwirth, Rudolf/H-2529-2012; Dracos, Marcos/K-2335-2012; Hallgren, Allan/A-8963-2013; Botner, Olga/A-9110-2013; Zalewski, Piotr/H-7335-2013; Ferrer, Antonio/H-2942-2015; Rovelli, Tiziano/K-4432-2015; Fernandez-Alonso, Mercedes/F-2557-2016; Lozano-Bahilo, Julio/F-4881-2016; Olshevskiy, Alexander/I-1580-2016; Paganoni, Marco/A-4235-2016; Hernandez-Rey, Juan Jose/N-5955-2014; Abreu, Pedro/L-2220-2014; Zaitsev, Alexandre/B-8989-2017; Vaz, Pedro/K-2464-2013; Monge, Maria Roberta/G-9127-2012; Ridky, Jan/H-6184-2014; Zukanovich Funchal, Renata/C-5829-2013; Contreras Gonzalez, Jose Luis/K-7255-2014; Pimenta, Mario/M-1741-2013; Gomez Cadenas, Juan Jose/L-2003-2014; Ragazzi, Stefano/D-2463-2009; Roditi, Itzhak/O-7448-2014; Zuniga, Juan/P-4385-2014; Michelotto, Michele/A-9571-2013; Matorras, Francisco/I-4983-2015; OI Torassa, Ezio/0000-0003-2321-0599; Ruiz, Alberto/0000-0002-3639-0368; Shellard, Ronald/0000-0002-2983-1815; Dracos, Marcos/0000-0003-0514-193X; Ferrer, Antonio/0000-0003-0532-711X; Rovelli, Tiziano/0000-0002-9746-4842; Fernandez-Alonso, Mercedes/0000-0002-1311-5275; Lozano-Bahilo, Julio/0000-0003-0613-140X; Olshevskiy, Alexander/0000-0002-8902-1793; Paganoni, Marco/0000-0003-2461-275X; Hernandez-Rey, Juan Jose/0000-0002-1527-7200; Abreu, Pedro/0000-0002-9973-7314; Zaitsev, Alexandre/0000-0002-4961-8368; Matteuzzi, Clara/0000-0002-4047-4521; Vaz, Pedro/0000-0002-7186-2359; Monge, Maria Roberta/0000-0003-1633-3195; Ridky, Jan/0000-0001-6697-1393; Zukanovich Funchal, Renata/0000-0001-6749-0022; Contreras Gonzalez, Jose Luis/0000-0001-7282-2394; Pimenta, Mario/0000-0002-2590-0908; Gomez Cadenas, Juan Jose/0000-0002-8224-7714; Ragazzi, Stefano/0000-0001-8219-2074; Roditi, Itzhak/0000-0003-2363-5626; Zuniga, Juan/0000-0002-1041-6451; Michelotto, Michele/0000-0001-6644-987X; Matorras, Francisco/0000-0003-4295-5668; DE MIN, ALBERTO/0000-0002-8130-9389; Demaria, Natale/0000-0003-0743-9465; Sannino, Mario/0000-0001-7700-8383; De Lotto, Barbara/0000-0003-3624-4480; Benlloch Baviera, Jose Maria/0000-0001-6073-1436; Tabarelli de Fatis, Tommaso/0000-0001-6262-4685; Lacasta, Carlos/0000-0002-2623-6252 NR 26 TC 23 Z9 23 U1 0 U2 6 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD JAN 9 PY 1992 VL 274 IS 2 BP 230 EP 238 DI 10.1016/0370-2693(92)90528-C PG 9 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA HB621 UT WOS:A1992HB62100018 ER PT J AU KODAMA, K USHIDA, N MOKHTARANI, A PAOLONE, VS VOLK, JT WILCOX, JO YAGER, PM EDELSTEIN, RM FREYBERGER, AP GIBAUT, DB LIPTON, RJ NICHOLS, WR POTTER, DM RUSS, JS ZHANG, C ZHANG, Y JANG, HI KIM, JY KIM, TI LIM, IT PAC, MY BALLER, BR STEFANSKI, RJ NAKAZAWA, K CHUNG, KS CHUNG, SH KIM, DC PARK, IG PARK, MS SONG, JS YOON, CS CHIKAWA, M ABE, T AOKI, S FUJII, T FUJIOKA, G FUJIWARA, K FUKUSHIMA, H HARA, T TAKAHASHI, Y TARUMA, K TSUZUKI, Y YOKOYAMA, C CHANG, SD CHEON, BG CHO, JH KANG, JS KIM, CO KIM, KY KIM, TY LEE, JC LEE, SB LIM, GY NAM, SW SHIN, TS SIM, KS WOO, JK ISOKANE, Y TSUNEOKA, Y GAUTHIER, A HOSHINO, K KITAMURA, H KOBAYASHI, M MIYANISHI, M NAKAMURA, K NAKAMURA, M NAKANISHI, S NIU, K NIWA, K TAJIMA, H DUNLEA, JM FREDERIKSEN, SG KURAMATA, S LUNDBERG, BG OLEYNIK, GA REAY, NW REIBEL, K SIDWELL, RA STANTON, NR MORIYAMA, K SHIBATA, H KALBFLEISCH, GR SKUBIC, P SNOW, JM WILLIS, SE YUAN, WY KUSUMOTO, O NAKAMURA, K OKUSAWA, T TERANAKA, M TOMINAGA, T YOSHIDA, T YUUKI, J OKABE, H YOKOTA, J ADACHI, M KAZUNO, M NIU, E SHIBUYA, H WATANABE, S OHTSUKA, I SATO, Y TEZUKA, I BAHK, SY KIM, SK AF KODAMA, K USHIDA, N MOKHTARANI, A PAOLONE, VS VOLK, JT WILCOX, JO YAGER, PM EDELSTEIN, RM FREYBERGER, AP GIBAUT, DB LIPTON, RJ NICHOLS, WR POTTER, DM RUSS, JS ZHANG, C ZHANG, Y JANG, HI KIM, JY KIM, TI LIM, IT PAC, MY BALLER, BR STEFANSKI, RJ NAKAZAWA, K CHUNG, KS CHUNG, SH KIM, DC PARK, IG PARK, MS SONG, JS YOON, CS CHIKAWA, M ABE, T AOKI, S FUJII, T FUJIOKA, G FUJIWARA, K FUKUSHIMA, H HARA, T TAKAHASHI, Y TARUMA, K TSUZUKI, Y YOKOYAMA, C CHANG, SD CHEON, BG CHO, JH KANG, JS KIM, CO KIM, KY KIM, TY LEE, JC LEE, SB LIM, GY NAM, SW SHIN, TS SIM, KS WOO, JK ISOKANE, Y TSUNEOKA, Y GAUTHIER, A HOSHINO, K KITAMURA, H KOBAYASHI, M MIYANISHI, M NAKAMURA, K NAKAMURA, M NAKANISHI, S NIU, K NIWA, K TAJIMA, H DUNLEA, JM FREDERIKSEN, SG KURAMATA, S LUNDBERG, BG OLEYNIK, GA REAY, NW REIBEL, K SIDWELL, RA STANTON, NR MORIYAMA, K SHIBATA, H KALBFLEISCH, GR SKUBIC, P SNOW, JM WILLIS, SE YUAN, WY KUSUMOTO, O NAKAMURA, K OKUSAWA, T TERANAKA, M TOMINAGA, T YOSHIDA, T YUUKI, J OKABE, H YOKOTA, J ADACHI, M KAZUNO, M NIU, E SHIBUYA, H WATANABE, S OHTSUKA, I SATO, Y TEZUKA, I BAHK, SY KIM, SK TI MEASUREMENT OF THE FORM-FACTOR RATIOS IN THE DECAY D+-]KBAR-STAR(892)0-MU+NU SO PHYSICS LETTERS B LA English DT Article ID QUARK-MODEL; B-DECAY; POLARIZATION; MESONS AB A measurement of the form factor ratios in the decay D+ --> K*BAR(892)0-mu+-nu is obtained by fitting to the decay angles and q2 of 305 events. The results, evaluated at q2 = 0, are A2(0)/A1(0) = 0.82(-0.23)+0.22 (stat.) +/- 0.11 (sys.) and V(0)/A1(0) = 2.00(-0.32)+0.34 +/- 0.16, where A1 and A2 are the axial vector form factors and V is the vector form factor. The corresponding ratio of the longitudinal to transverse polarization of the KBAR*0 is 1.18 +/- 0.18 +/- 0.08. These results are compared with other experimental results and with theoretical predictions. C1 CHONNAM NATL UNIV,KWANGJU 500757,SOUTH KOREA. GYEONGSANG NATL UNIV,JINJU 660300,SOUTH KOREA. UNIV KOREA,SEOUL 136701,SOUTH KOREA. SCI EDUC INST OSAKA PREFECTURE,OSAKA 558,JAPAN. WONKWANG UNIV,IRI 570749,SOUTH KOREA. UNIV CALIF DAVIS,DAVIS,CA 95616. CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213. FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. GIFU UNIV,GIFU 50111,JAPAN. KINKI UNIV,HIGASHIOSAKA,OSAKA 577,JAPAN. KOBE UNIV,KOBE 657,JAPAN. NAGOYA INST TECHNOL,NAGOYA,AICHI 466,JAPAN. NAGOYA UNIV,NAGOYA,AICHI 464,JAPAN. OHIO STATE UNIV,COLUMBUS,OH 43210. OKAYAMA UNIV,OKAYAMA 700,JAPAN. UNIV OKLAHOMA,NORMAN,OK 73019. OSAKA CITY UNIV,OSAKA 558,JAPAN. TOHO UNIV,FUNABASHI,CHIBA 274,JAPAN. UTSUNOMIYA UNIV,UTSUNOMIYA,TOCHIGI 321,JAPAN. RP KODAMA, K (reprint author), AICHI UNIV EDUC,KARIYA 448,JAPAN. RI Russ, James/P-3092-2014; Aoki, Shigeki/L-6044-2015 OI Russ, James/0000-0001-9856-9155; NR 25 TC 56 Z9 56 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD JAN 9 PY 1992 VL 274 IS 2 BP 246 EP 252 DI 10.1016/0370-2693(92)90530-H PG 7 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA HB621 UT WOS:A1992HB62100020 ER PT J AU GALLUP, RF FONG, CY KAUZLARICH, SM AF GALLUP, RF FONG, CY KAUZLARICH, SM TI BONDING PROPERTIES OF CA14GAAS11 - A COMPOUND CONTAINING DISCRETE GAAS4 TETRAHEDRA AND A HYPERVALENT AS3 POLYATOMIC UNIT SO INORGANIC CHEMISTRY LA English DT Article ID ELECTRONIC-STRUCTURE; MOMENTUM-SPACE; PSEUDOPOTENTIALS; PHASES AB We have theoretically studied the bonding properties of Ca14GaAs11 using the ab initio, self-consistent pseudopotential method within the local density approximation of density functional theory. Ca14GaAs11 is an example of a new series of recently prepared compounds which have the stoichiometry A14MPn11 (A = Ca, Sr, Ba; M = Al, Ga, Mn; Pn = As, Sb, Bi). We have found that the electronic structure and bonding of the Ca14GaAs11 compound are consistent with the Zintl concept. In addition, the GaAs4 tetrahedra and the linear As3 groups contained in this compound are isolated units which are not arranged into an extended bonding network. The bonding within the GaAs4 group is slightly more ionic than the bonding in a GaAs crystal. The linear As3 unit can be accurately described as a hypervalent three-center, four-electron bonded structure. The A14MPn11 structure type contains the first example of a discrete, hypervalent group 15 linear anion. C1 UNIV CALIF DAVIS, DEPT PHYS, DAVIS, CA 95616 USA. UNIV CALIF DAVIS, DEPT CHEM, DAVIS, CA 95616 USA. UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NR 38 TC 33 Z9 33 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0020-1669 EI 1520-510X J9 INORG CHEM JI Inorg. Chem. PD JAN 8 PY 1992 VL 31 IS 1 BP 115 EP 118 DI 10.1021/ic00027a022 PG 4 WC Chemistry, Inorganic & Nuclear SC Chemistry GA GZ384 UT WOS:A1992GZ38400022 ER PT J AU EVANS, RW ORIANS, CE ASCHER, NL AF EVANS, RW ORIANS, CE ASCHER, NL TI THE POTENTIAL SUPPLY OF ORGAN DONORS - AN ASSESSMENT OF THE EFFICIENCY OF ORGAN PROCUREMENT EFFORTS IN THE UNITED-STATES SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Article ID ALCOHOLIC LIVER-DISEASE; HEART-TRANSPLANTATION; KIDNEY-TRANSPLANTATION; BRAIN-DEATH; CADAVERIC KIDNEYS; DONATION; ATTITUDES; SHORTAGE; RECIPIENTS; PROFESSIONALS AB Objectives.-To estimate the potential supply of organ donors and to measure the efficiency of organ procurement efforts in the United States. Methods. - A geographic database has been developed consisting of multiple cause of death and sociodemographic data compiled by the National Center for Health Statistics. All deaths are evaluated as to their potential for organ donation. Two classes of potential donors are identified: class 1 estimates are restricted to causes of death involving significant head trauma only, and class 2 estimates include class 1 estimates as well as deaths in which brain death was less probable. Results. - Over 23000 people are currently awaiting a kidney, heart, liver, heart-lung, pancreas, or lung transplantation. Donor supply is inadequate, and the number of donors remained unchanged at approximately 4000 annually for 1986 through 1989, with a modest 9.1% increase in 1990. Between 6900 and 10700 potential donors are available annually (eg, 28.5 to 43.7 per million population). Depending on the class of donor considered, organ procurement efforts are between 37% and 59% efficient. Efficiency greatly varies by state and organ procurement organization. Conclusions. - Many more organ donors are available than are being accessed through existing organ procurement efforts. Realistically, it may be possible to increase by 80% the number of donors available in the United States (up to 7300 annually). It is conceivable, although unlikely, that the supply of donor organs could achieve a level to meet demand. C1 UNIV CALIF SAN FRANCISCO,DEPT SURG,SAN FRANCISCO,CA 94143. RP EVANS, RW (reprint author), BATTELLE SEATTLE RES CTR,4000 NE 41ST ST,SEATTLE,WA 98105, USA. NR 93 TC 240 Z9 248 U1 2 U2 8 PU AMER MEDICAL ASSOC PI CHICAGO PA 515 N STATE ST, CHICAGO, IL 60610 SN 0098-7484 J9 JAMA-J AM MED ASSOC JI JAMA-J. Am. Med. Assoc. PD JAN 8 PY 1992 VL 267 IS 2 BP 239 EP 246 DI 10.1001/jama.267.2.239 PG 8 WC Medicine, General & Internal SC General & Internal Medicine GA GY046 UT WOS:A1992GY04600027 PM 1727520 ER PT J AU MATHIS, CA BIEGON, A TAYLOR, SE ENAS, JD HANRAHAN, SM AF MATHIS, CA BIEGON, A TAYLOR, SE ENAS, JD HANRAHAN, SM TI [I-125] 5-IODO-6-NITRO-2-PIPERAZINYLQUINOLINE - A POTENT AND SELECTIVE LIGAND FOR THE SEROTONIN UPTAKE COMPLEX SO EUROPEAN JOURNAL OF PHARMACOLOGY LA English DT Note DE [I-125]5-IODO-6-NITROQUIPAZINE; 5-HT UPTAKE ID H-3 6-NITROQUIPAZINE; SITES; BRAIN RP MATHIS, CA (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV RES MED & RADIAT BIOPHYS,MS 55-121,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. RI Mathis, Chester/A-8607-2009 FU NINDS NIH HHS [NS-22899] NR 5 TC 28 Z9 28 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0014-2999 J9 EUR J PHARMACOL JI Eur. J. Pharmacol. PD JAN 7 PY 1992 VL 210 IS 1 BP 103 EP 104 DI 10.1016/0014-2999(92)90658-Q PG 2 WC Pharmacology & Pharmacy SC Pharmacology & Pharmacy GA GZ791 UT WOS:A1992GZ79100015 PM 1534764 ER PT J AU HIGASHI, M BURNS, TP PATTEN, BC AF HIGASHI, M BURNS, TP PATTEN, BC TI TROPHIC NICHES OF SPECIES AND TROPHIC STRUCTURE OF ECOSYSTEMS - COMPLEMENTARY PERSPECTIVES THROUGH FOOD NETWORK UNFOLDING SO JOURNAL OF THEORETICAL BIOLOGY LA English DT Article ID FLOWS C1 OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831. UNIV GEORGIA,INST ECOL,ATHENS,GA 30602. UNIV GEORGIA,DEPT ZOOL,ATHENS,GA 30602. RP HIGASHI, M (reprint author), RYUKOKU UNIV,FAC SCI & TECHNOL,OTSU,SHIGA 52021,JAPAN. NR 18 TC 8 Z9 8 U1 0 U2 5 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-5193 J9 J THEOR BIOL JI J. Theor. Biol. PD JAN 7 PY 1992 VL 154 IS 1 BP 57 EP 76 DI 10.1016/S0022-5193(05)80188-2 PG 20 WC Biology; Mathematical & Computational Biology SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational Biology GA HA948 UT WOS:A1992HA94800006 ER PT J AU KNUDSON, SK NOID, DW SUMPTER, BG AF KNUDSON, SK NOID, DW SUMPTER, BG TI DYNAMICS OF CHARGED POLYMERS .1. SO MACROMOLECULES LA English DT Article ID MOLECULAR-DYNAMICS; CRYSTALLINE POLYETHYLENE; COMPUTER-SIMULATION AB We use full classical dynamics to study the properties of isolated multiply charged polymeric ions. The polymer is taken to be a chain of 1000 "atoms" with bonding and nonbonding potential terms; in these initial studies, no polarization or dielectric terms are included. We treat polymers with 1, 5, 10, 15, and 20 charges equally spaced along the 1000 atom chain and conduct a 600-ps simulation of the charged species. Each simulation required approximately 7 h on a Cray YMP. Because the simulation is limited in time and the potential adopted is relatively simple, the results are interpreted qualitatively as a function of charge density. At high charge densities the ions force the polymeric ion to adopt a stretched out, essentially planar conformation, in marked contrast to the highly folded conformation adopted by an uncharged polymer. This conformation minimizes the ionic interactions within the constraints imposed by chemical bonding. These descriptions are supported by the statistical data obtained during the simulation. C1 OAK RIDGE NATL LAB,DIV CHEM,OAK RIDGE,TN 37831. UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. RP KNUDSON, SK (reprint author), COLL WILLIAM & MARY,DEPT CHEM,WILLIAMSBURG,VA 23187, USA. RI Sumpter, Bobby/C-9459-2013 OI Sumpter, Bobby/0000-0001-6341-0355 NR 23 TC 3 Z9 3 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD JAN 6 PY 1992 VL 25 IS 1 BP 331 EP 336 DI 10.1021/ma00027a052 PG 6 WC Polymer Science SC Polymer Science GA GZ539 UT WOS:A1992GZ53900052 ER PT J AU ANNIS, BK LIN, JS SCHERR, EM MACDIARMID, AG AF ANNIS, BK LIN, JS SCHERR, EM MACDIARMID, AG TI EVIDENCE FOR THE DEVELOPMENT OF A ONE-DIMENSIONAL ARRAY OF CRYSTALLITES IN STRETCHED POLYANILINE AND THE EFFECT OF CL-DOPING SO MACROMOLECULES LA English DT Article ID ANGLE X-RAY; CONDUCTIVITY AB Small-angle X-ray scattering data obtained from drawn films of the emeraldine base form of polyaniline indicate the development of an array of crystalline regions which is periodic along the draw axis. The spacing is 16 +/- 3 nm and the extent of the crystallites is about 6 nm. Doping the films with Cl- appears to reduce the electron density of the crystalline regions and eliminates this source of scattering. C1 OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831. UNIV PENN,DEPT CHEM,PHILADELPHIA,PA 19104. RP ANNIS, BK (reprint author), OAK RIDGE NATL LAB,DIV CHEM,POB 2008,OAK RIDGE,TN 37831, USA. NR 26 TC 3 Z9 3 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD JAN 6 PY 1992 VL 25 IS 1 BP 429 EP 433 DI 10.1021/ma00027a066 PG 5 WC Polymer Science SC Polymer Science GA GZ539 UT WOS:A1992GZ53900066 ER PT J AU FIELD, JB TOPRAKCIOGLU, C BALL, RC STANLEY, HB DAI, L BARFORD, W PENFOLD, J SMITH, G HAMILTON, W AF FIELD, JB TOPRAKCIOGLU, C BALL, RC STANLEY, HB DAI, L BARFORD, W PENFOLD, J SMITH, G HAMILTON, W TI DETERMINATION OF END-ADSORBED POLYMER DENSITY PROFILES BY NEUTRON REFLECTOMETRY SO MACROMOLECULES LA English DT Article ID BLOCK COPOLYMERS; MICA SURFACES; FORCES; ADSORPTION; SOLVENT; BRUSHES AB Specular neutron reflection was used to investigate the density profile polystyrene-poly(ethylene oxide) (PS-PEO) block copolymers adsorbed from d-toluene onto quartz. The neutron beam passed through the quartz substrate and was reflected from the quartz/d-toluene interface. The PEO block, which comprises a small fraction of the total polymer molecular weight, strongly adsorbs onto the quartz substrate, while the PS block remains in solution. Thus, the chains form a terminally attached polymer "brush". The reflectivity profiles are well described by a parabolic or error function polymer density profile normal to the interface, but the data cannot be fitted to exponential or power law decay profiles. The layer thickness values are in good agreement with the results of interlayer force measurements for the same polymer-solvent system adsorbing onto mica. The molecular weight dependence of the layer thickness and adsorbance obtained from the data obey scaling laws in accord with the theory of semidilute polymer brushes. C1 UNIV CAMBRIDGE, CAVENDISH LAB, CAMBRIDGE CB3 0HE, ENGLAND. ICI PLC, COLLOID SCI GRP, RUNCORN WA7 4QE, ENGLAND. UNIV CALIF LOS ALAMOS SCI LAB, LANSCE, LOS ALAMOS, NM 87545 USA. RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND. INST FOOD RES, NORWICH NR4 7UA, NORFOLK, ENGLAND. UNIV SHEFFIELD, DEPT PHYS, SHEFFIELD S10 2UN, ENGLAND. NR 27 TC 155 Z9 156 U1 1 U2 31 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0024-9297 J9 MACROMOLECULES JI Macromolecules PD JAN 6 PY 1992 VL 25 IS 1 BP 434 EP 439 DI 10.1021/ma00027a067 PG 6 WC Polymer Science SC Polymer Science GA GZ539 UT WOS:A1992GZ53900067 ER PT J AU MOLLER, P NIX, JR AF MOLLER, P NIX, JR TI NUCLEAR PAIRING MODELS SO NUCLEAR PHYSICS A LA English DT Article ID NEUTRON; HEAVY AB We calculate nuclear pairing gaps for nuclei throughout the periodic system in both the BCS and Lipkin-Nogami pairing models. The energy levels required for the calculations are obtained from the folded-Yukawa single-particle model for ground-state shapes obtained in the macroscopic-microscopic approach by minimizing the total potential energy with respect to epsilon-2, and epsilon-4 shape degrees of freedom. For both pairing models we study two proposed forms for the effective-interaction pairing gap that is used to determine the pairing-gap parameter G that enters directly into the pairing equations. By comparing the calculated pairing gaps to experimental odd-even mass differences we determine parameter values for the proposed forms of the effective-interaction pairing gap by least-squares minimization. These comparisons to data lead to a preferred form for the effective-interaction pairing gap and to values of its parameters for both the BCS and Lipkin-Nogami models. From this microscopic study we conclude that no explicit isospin dependence is required for the effective-interaction pairing gap that is used to determine the pairing-gap parameter G. RP MOLLER, P (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. NR 20 TC 294 Z9 306 U1 1 U2 6 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 JAN 6 PY 1992 VL 536 IS 1 BP 20 EP 60 DI 10.1016/0375-9474(92)90244-E PG 41 WC Physics, Nuclear SC Physics GA HB122 UT WOS:A1992HB12200002 ER PT J AU MOLLER, P NIX, JR MYERS, WD SWIATECKI, WJ AF MOLLER, P NIX, JR MYERS, WD SWIATECKI, WJ TI THE COULOMB REDISTRIBUTION ENERGY AS REVEALED BY A REFINED STUDY OF NUCLEAR-MASSES SO NUCLEAR PHYSICS A LA English DT Article ID MODEL; HEAVY; FORMULA; FISSION AB The macroscopic-microscopic approach to the calculation of nuclear masses has been further refined through the inclusion of epsilon-3 and epsilon-6 shape degrees of freedom. Most of the systematic discrepancies that previously existed for heavy nuclei have been eliminated. The agreement is so close that the effect of turning on and off the Coulomb redistribution terms in the finite-range droplet model can be clearly discerned, thus confirming the contribution of this physical effect to nuclear stability. Models without the higher-order terms of the finite-range droplet model, such as the finite-range liquid-drop model that we also investigate here, are clearly inferior in the heavy-element region. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP MOLLER, P (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. NR 17 TC 29 Z9 29 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 JAN 6 PY 1992 VL 536 IS 1 BP 61 EP 71 DI 10.1016/0375-9474(92)90245-F PG 11 WC Physics, Nuclear SC Physics GA HB122 UT WOS:A1992HB12200003 ER PT J AU WANG, TF BOYD, RN MATHEWS, GJ ROBERTS, ML SALE, KE FARRELL, MM ISLAM, MS KOLNICKI, GW AF WANG, TF BOYD, RN MATHEWS, GJ ROBERTS, ML SALE, KE FARRELL, MM ISLAM, MS KOLNICKI, GW TI MEASUREMENT OF THE HALF-LIFE OF F-20 SO NUCLEAR PHYSICS A LA English DT Article DE RADIOACTIVITY NE-20 [FROM F-19(D, P)F-20(BETA-)NE-20-STAR(GAMMA)NE-20]; MEASURED I-GAMMA (T); F-20 LEVEL DEDUCED T1/2; RADIOACTIVE BEAM AB The half-life of F-20 has been measured, using a radioactive ion beam technique. The resulting half-life is 11.163 +/- 0.008 s. C1 OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210. RP WANG, TF (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV E,LIVERMORE,CA 94550, USA. 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 J9 NUCL PHYS A JI Nucl. Phys. A PD JAN 6 PY 1992 VL 536 IS 1 BP 159 EP 167 DI 10.1016/0375-9474(92)90251-E PG 9 WC Physics, Nuclear SC Physics GA HB122 UT WOS:A1992HB12200009 ER PT J AU BARKLOW, T INNES, WR PETRADZA, M SNYDER, A STOKER, DP WAGNER, SR ABRAMS, GS AMIDEI, D BADEN, AR BOYARSKI, AM BOYER, J BURCHAT, PR BURKE, DL BUTLER, F DORFAN, JM FELDMAN, GJ GIDAL, G GLADNEY, L GOLD, MS GOLDHABER, G GOLDING, LJ HAGGERTY, J HANSON, G HAYES, K HERRUP, D HOLLEBEEK, RJ JAROS, JA JURICIC, I KADYK, JA KARLEN, D LANKFORD, AJ LARSEN, RR LECLAIRE, BW LEVI, ME LOCKYER, NS LUTH, V NELSON, ME ONG, RA PERL, ML RICHTER, B RILES, K ROWSON, PC SCHAAD, T SCHELLMAN, H SCHMIDKE, WB SHELDON, PD TRILLING, GH WOOD, DR YELTON, JM AF BARKLOW, T INNES, WR PETRADZA, M SNYDER, A STOKER, DP WAGNER, SR ABRAMS, GS AMIDEI, D BADEN, AR BOYARSKI, AM BOYER, J BURCHAT, PR BURKE, DL BUTLER, F DORFAN, JM FELDMAN, GJ GIDAL, G GLADNEY, L GOLD, MS GOLDHABER, G GOLDING, LJ HAGGERTY, J HANSON, G HAYES, K HERRUP, D HOLLEBEEK, RJ JAROS, JA JURICIC, I KADYK, JA KARLEN, D LANKFORD, AJ LARSEN, RR LECLAIRE, BW LEVI, ME LOCKYER, NS LUTH, V NELSON, ME ONG, RA PERL, ML RICHTER, B RILES, K ROWSON, PC SCHAAD, T SCHELLMAN, H SCHMIDKE, WB SHELDON, PD TRILLING, GH WOOD, DR YELTON, JM TI SEARCH FOR THE PRODUCTION OF THE FINAL-STATES TAU+TAU- E+E-, TAU+TAU-MU+MU-, AND TAU+TAU-PI+PI- IN E+E- COLLISIONS AT SQUARE-ROOT-OF-S = 29 GEV SO PHYSICAL REVIEW LETTERS LA English DT Article AB We have searched for the reaction e+ e- --> tau+ tau- ffBAR, where f is either an electron, muon, or charged pion, at square-root s = 29 GeV using the Mark II detector at the SLAC storage ring PEP. One candidate event is found while 2.3 events are expected from known processes, We would expect to see 11 events if the cross section for e+ e- --> tau+ tau- ffBAR at square-root s = 29 GeV were enhanced by the factor of 4.7 which the ALEPH Collaboration reports for square-root s = 91 GeV. We also look for e+ e- --> e+ e- --> ffBAR and e+ e- --> mu+ mu- ffBAR, and for e+ e- --> tau+ tau- gamma, using a similar analysis procedure, and see the number of events predicted by the standard model. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138. RP BARKLOW, T (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 6 TC 5 Z9 5 U1 1 U2 1 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 JAN 6 PY 1992 VL 68 IS 1 BP 13 EP 16 DI 10.1103/PhysRevLett.68.13 PG 4 WC Physics, Multidisciplinary SC Physics GA GY044 UT WOS:A1992GY04400004 ER PT J AU CHEN, T GERASIMOV, A COLE, B FINLEY, D GODERRE, G HARRISON, M JOHNSON, R KOURBANIS, I MANZ, C MERMINGA, N MICHELOTTI, L PEGGS, S PILAT, F PRUSS, S SALTMARSH, C SARITEPE, S SATOGATA, T TALMAN, R TRAHERN, CG TSIRONIS, G AF CHEN, T GERASIMOV, A COLE, B FINLEY, D GODERRE, G HARRISON, M JOHNSON, R KOURBANIS, I MANZ, C MERMINGA, N MICHELOTTI, L PEGGS, S PILAT, F PRUSS, S SALTMARSH, C SARITEPE, S SATOGATA, T TALMAN, R TRAHERN, CG TSIRONIS, G TI MEASUREMENTS OF A HAMILTONIAN SYSTEM AND THEIR DESCRIPTION BY A DIFFUSIVE MODEL SO PHYSICAL REVIEW LETTERS LA English DT Article AB The dynamics of transverse particle oscillations in the Fermilab Tevatron, artificially made nonlinear, is studied by observing beam profiles over periods up to an hour. A "diffusive" model with amplitude-dependent diffusion coefficient gives a quantitatively accurate description of beam evolution. The evolution is influenced strongly by nonlinear resonance. C1 FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. SUPERCOND SUPER COLLIDER LAB,DALLAS,TX 75237. UNIV N TEXAS,DEPT PHYS,DENTON,TX 76203. RP CHEN, T (reprint author), CORNELL UNIV,NEWMAN LAB NUCL STUDIES,ITHACA,NY 14853, USA. RI Tsironis, George/C-2683-2011 NR 5 TC 11 Z9 11 U1 0 U2 1 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 JAN 6 PY 1992 VL 68 IS 1 BP 33 EP 36 DI 10.1103/PhysRevLett.68.33 PG 4 WC Physics, Multidisciplinary SC Physics GA GY044 UT WOS:A1992GY04400009 ER PT J AU LUCE, TC PETTY, CC DEHAAS, JCM AF LUCE, TC PETTY, CC DEHAAS, JCM TI INWARD ENERGY-TRANSPORT IN TOKAMAK PLASMAS SO PHYSICAL REVIEW LETTERS LA English DT Article ID SYSTEMS AB Peaked electron temperature profiles are observed in the DIII-D tokamak during electron cyclotron heating despite the fact that > 75% of the input power is deposited significantly off axis. Power balance analysis indicates a net inward flow of energy for electrons. An inward energy flow is not compatible with diffusive or critical gradient models. A time-dependent perturbation technique is employed to estimate the conductive loss and the nondiffusive part of the energy transport. The nondiffusive component of the transport appears only at radii smaller than that of the heating location. C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. RP LUCE, TC (reprint author), GEN ATOM CO,POB 85608,SAN DIEGO,CA 92186, USA. NR 14 TC 122 Z9 122 U1 1 U2 3 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 JAN 6 PY 1992 VL 68 IS 1 BP 52 EP 55 DI 10.1103/PhysRevLett.68.52 PG 4 WC Physics, Multidisciplinary SC Physics GA GY044 UT WOS:A1992GY04400014 ER PT J AU MCNEIL, LE GRIMSDITCH, M AF MCNEIL, LE GRIMSDITCH, M TI PRESSURE-AMORPHIZED SIO2 ALPHA-QUARTZ - AN ANISOTROPIC AMORPHOUS SOLID SO PHYSICAL REVIEW LETTERS LA English DT Article ID ROOM-TEMPERATURE; PHASE; RAMAN; STATE; GLASS; SCATTERING; ALPO4; SNI4 AB Recent experiments [Kruger and Jeanloz, Science 249, 647 (1990)] have shown that the pressure-induced amorphous form of AlPO4 reverts to its original "single-crystal" form on release of pressure. Here we present the results of a Brillouin scattering study of the sister compound alpha-quartz, SiO2 (which can also be pressure amorphized but retains its amorphous structure on release of pressure), which shows that the recovered material is not elastically isotropic but retains a "memory" of its original crystallographic orientation. C1 ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. RP MCNEIL, LE (reprint author), UNIV N CAROLINA,DEPT PHYS & ASTRON,CHAPEL HILL,NC 27599, USA. NR 17 TC 98 Z9 98 U1 1 U2 11 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 JAN 6 PY 1992 VL 68 IS 1 BP 83 EP 85 DI 10.1103/PhysRevLett.68.83 PG 3 WC Physics, Multidisciplinary SC Physics GA GY044 UT WOS:A1992GY04400022 ER PT J AU ONEILL, TE ROBERGE, M BRADBURY, EM AF ONEILL, TE ROBERGE, M BRADBURY, EM TI NUCLEOSOME ARRAYS INHIBIT BOTH INITIATION AND ELONGATION OF TRANSCRIPTS BY BACTERIOPHAGE-T7 RNA-POLYMERASE SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE RNA SYNTHESIS; CHROMATIN; LYTECHINUS-VARIEGATUS; 5S RDNA, NUCLEOSOME POSITIONING; HISTONES ID SIMIAN VIRUS 40; HISTONE ACETYLATION; DNA; INVITRO; CHROMATIN; DISPLACEMENT; PROTEIN; CORE; OLIGONUCLEOSOMES; SEQUENCES C1 UNIV CALIF LOS ALAMOS SCI LAB,DIV LIFE SCI,LOS ALAMOS,NM 87545. RP ONEILL, TE (reprint author), UNIV CALIF DAVIS,SCH MED,DEPT BIOL CHEM,DAVIS,CA 95616, USA. FU NIGMS NIH HHS [GM 26901] NR 35 TC 77 Z9 77 U1 0 U2 1 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-2836 J9 J MOL BIOL JI J. Mol. Biol. PD JAN 5 PY 1992 VL 223 IS 1 BP 67 EP 78 DI 10.1016/0022-2836(92)90716-W PG 12 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA GZ964 UT WOS:A1992GZ96400009 PM 1731087 ER PT J AU DEXHEIMER, SL WANG, Q PETEANU, LA POLLARD, WT MATHIES, RA SHANK, CV AF DEXHEIMER, SL WANG, Q PETEANU, LA POLLARD, WT MATHIES, RA SHANK, CV TI FEMTOSECOND IMPULSIVE EXCITATION OF NONSTATIONARY VIBRATIONAL-STATES IN BACTERIORHODOPSIN SO CHEMICAL PHYSICS LETTERS LA English DT Article ID OPTICAL PULSES; ALL-TRANS; ISOMERIZATION; SPECTROSCOPY; GENERATION; DYNAMICS; EVENTS AB Optical pulses of 12 fs duration are used to excite and probe nonstationary states in the photochemically active protein bacteriorhodopsin. Time-resolved differential transmittance measurements at 568, 620, and 656 nm reveal oscillations from coherent vibrational motion of the retinal chromophore as well as time-dependent changes reflecting its excited state dynamics and subsequent photochemistry. The oscillatory response is dominated by the nonstationary excitation of the ground state reactant, consistent with a resonant impulsive Raman process. Calculations based on this mechanism show good agreement with the results. C1 UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. RP DEXHEIMER, SL (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MED SCI,BERKELEY,CA 94720, USA. NR 20 TC 125 Z9 127 U1 0 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD JAN 3 PY 1992 VL 188 IS 1-2 BP 61 EP 66 DI 10.1016/0009-2614(92)85089-S PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA HA584 UT WOS:A1992HA58400012 ER PT J AU SELVIN, PR COOK, DN PON, NG BAUER, WR KLEIN, MP HEARST, JE AF SELVIN, PR COOK, DN PON, NG BAUER, WR KLEIN, MP HEARST, JE TI TORSIONAL RIGIDITY OF POSITIVELY AND NEGATIVELY SUPERCOILED DNA SO SCIENCE LA English DT Article ID FLUORESCENCE DEPOLARIZATION; ESCHERICHIA-COLI; DEPENDENCE; PROTEIN; MACROMOLECULES; REQUIREMENT; DYNAMICS; REPEAT AB Time-correlated single-photon counting of intercalated ethidium bromide was used to measure the torsion constants of positively supercoiled, relaxed, ana negatively supercoiled pBR322 DNA, which range in superhelix density from +0.042 to -0.123. DNA behaves as coupled, nonlinear torsional pendulums under superhelical stress, and the anharmonic term in the Hamiltonian is approximately 15 percent for root-mean-square fluctuations in twist at room temperature. At the level of secondary structure, positively supercoiled DNA is significantly more flexible than negatively supercoiled DNA. These results exclude certain models that account for differential binding affinity of proteins to positively and negatively supercoiled DNA. C1 UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. SUNY STONY BROOK,SCH MED,DEPT MICROBIOL,STONY BROOK,NY 11794. RP SELVIN, PR (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CHEM BIODYNAM LAB,BERKELEY,CA 94720, USA. FU FDA HHS [FD 8R1 GM 41911A-03-NF-03/92] NR 30 TC 56 Z9 56 U1 0 U2 3 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD JAN 3 PY 1992 VL 255 IS 5040 BP 82 EP 85 DI 10.1126/science.1553534 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA GX791 UT WOS:A1992GX79100042 PM 1553534 ER PT J AU NOJIRI, S AF NOJIRI, S TI SUPERSTRING IN 2-DIMENSIONAL BLACK-HOLE SO PHYSICS LETTERS B LA English DT Article ID COVARIANT QUANTIZATION; ALGEBRA AB We construct a superstring theory in a two dimensional black hole background based on the supersymmetric SU(1, 1)/U(1) gauged Wess-Zumino-Witten model. C1 FERMI NATL ACCELERATOR LAB,THEORY GRP,BATAVIA,IL 60510. OCHANOMIZU UNIV,FAC SCI,DEPT PHYS,PARTICLE PHYS GRP,BUNKYO KU,TOKYO 112,JAPAN. RP NOJIRI, S (reprint author), NATL LAB HIGH ENERGY PHYS,KEK,OHO 1-1,TSUKUBA,IBARAKI 305,JAPAN. NR 23 TC 12 Z9 12 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD JAN 2 PY 1992 VL 274 IS 1 BP 41 EP 46 DI 10.1016/0370-2693(92)90301-J PG 6 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA HB483 UT WOS:A1992HB48300008 ER PT B AU DODD, CV ALLEN, JD AF DODD, CV ALLEN, JD GP ASM INT TI AUTOMATED-ANALYSIS OF EDDY-CURRENT STEAM-GENERATOR DATA SO 11TH INTERNATIONAL CONFERENCE AND EXHIBITS ON NDE IN THE NUCLEAR AND PRESSURE VESSEL INDUSTRIES LA English DT Proceedings Paper CT 11th International Conference and Exhibits on NDE in the Nuclear and Pressure Vessel Industries CY APR 30-MAY 02, 1992 CL ALBUQUERQUE, NM SP ASM INT, MAT TESTING & QUAL CONTROL DIV, NONDESTRUCT TESTING COMM, AMER SOC NONDESTRUCT TESTING, AMER WELDING SOC, ATOMIC ENERGY SOC JAPAN, BRIT INST NONDESTRUCT TESTING, DEUT GESELL ZERSTORUNGSFREIE PRUFUNG E V, EDISON WELDING INST, ELECT POWER RES INST, ASM INT, ENERGY DIV, JAPAN INST MET, LOS ALAMOS NATL LAB, SOC FRANCAISE MET & MAT, SOC FRANCAISE ENERGIE NUCL, MINERALS MET & MAT SOC C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASM INTERNATIONAL PI MATERIALS PARK PA 9503 KINSMAN RD, MATERIALS PARK, OH 44073 BN 0-87170-446-3 PY 1992 BP 43 EP 48 PG 6 WC Materials Science, Characterization & Testing; Nuclear Science & Technology SC Materials Science; Nuclear Science & Technology GA BA08L UT WOS:A1992BA08L00007 ER PT J AU BONNER, BP WANAMAKER, BJ JOHNSON, PA SHANKLAND, TJ AF BONNER, BP WANAMAKER, BJ JOHNSON, PA SHANKLAND, TJ BE Liizi, PZ TI THE ORIGIN OF NONLINEAR RESPONSE IN ROCK SO 14TH INTERNATIONAL CONGRESS ON ACOUSTICS, PROCEEDINGS, VOLS 1-4 LA English DT Proceedings Paper CT 14th International Congress on Acoustics (ICA 14) CY SEP 03-10, 1992 CL BEIJING, PEOPLES R CHINA SP INT UNION PURE & APPL PHYS, ACOUST SOC CHINA, ACADEMIA SINICA, INST ACOUST C1 LAWRENCE LIVERMORE NATL LAB,DEPT EARTH SCI L201,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ACADEMIA SINICA INST ACOUSTICS PI BEIJING 100080 PA PROFESSOR WU WEI-FANG, BEIJING 100080, PEOPLES R CHINA PY 1992 BP 47 EP 48 PG 2 WC Acoustics; Architecture; Language & Linguistics; Mechanics; Music SC Acoustics; Architecture; Linguistics; Mechanics; Music GA BC62T UT WOS:A1992BC62T00003 ER PT J AU JOHNSON, PA SHANKLAND, TJ BONNER, BP WANNAMAKER, BJ AF JOHNSON, PA SHANKLAND, TJ BONNER, BP WANNAMAKER, BJ BE Liizi, PZ TI LABORATORY AND FIELD OBSERVATION OF PARAMETRIC BEAM FORMATION IN ROCK SO 14TH INTERNATIONAL CONGRESS ON ACOUSTICS, PROCEEDINGS, VOLS 1-4 LA English DT Proceedings Paper CT 14th International Congress on Acoustics (ICA 14) CY SEP 03-10, 1992 CL BEIJING, PEOPLES R CHINA SP INT UNION PURE & APPL PHYS, ACOUST SOC CHINA, ACADEMIA SINICA, INST ACOUST C1 LOS ALAMOS NATL LAB,GEOL ENGN GRP,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ACADEMIA SINICA INST ACOUSTICS PI BEIJING 100080 PA PROFESSOR WU WEI-FANG, BEIJING 100080, PEOPLES R CHINA PY 1992 BP 53 EP 54 PG 2 WC Acoustics; Architecture; Language & Linguistics; Mechanics; Music SC Acoustics; Architecture; Linguistics; Mechanics; Music GA BC62T UT WOS:A1992BC62T00006 ER PT J AU BUCK, O DACE, GE THOMPSON, RB AF BUCK, O DACE, GE THOMPSON, RB BE Liizi, PZ TI APPLICATION OF NONLINEAR ACOUSTICS TO NONDESTRUCTIVE MATERIALS CHARACTERIZATION AND EVALUATION SO 14TH INTERNATIONAL CONGRESS ON ACOUSTICS, PROCEEDINGS, VOLS 1-4 LA English DT Proceedings Paper CT 14th International Congress on Acoustics (ICA 14) CY SEP 03-10, 1992 CL BEIJING, PEOPLES R CHINA SP INT UNION PURE & APPL PHYS, ACOUST SOC CHINA, ACADEMIA SINICA, INST ACOUST C1 IOWA STATE UNIV SCI & TECHNOL,CTR NONDESTRUCT EVALUAT,AMES LAB,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ACADEMIA SINICA INST ACOUSTICS PI BEIJING 100080 PA PROFESSOR WU WEI-FANG, BEIJING 100080, PEOPLES R CHINA PY 1992 BP 59 EP 60 PG 2 WC Acoustics; Architecture; Language & Linguistics; Mechanics; Music SC Acoustics; Architecture; Linguistics; Mechanics; Music GA BC62T UT WOS:A1992BC62T00009 ER PT J AU ECKERMAN, KF AF ECKERMAN, KF BE Watson, EE Schlafkestelson, AT TI HEALTH AND DOSIMETRY CONSIDERATIONS IN THE ICRP 1990 FORMULATION OF EFFECTIVE DOSE SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 28 EP 40 PG 13 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00003 ER PT J AU WASHBURN, LC STUBBS, JB LEE, YCC SUN, TTH HOLLOWAY, EC CROOK, JE BRECHBIEL, MW GANSOW, OA STEPLEWSKI, Z AF WASHBURN, LC STUBBS, JB LEE, YCC SUN, TTH HOLLOWAY, EC CROOK, JE BRECHBIEL, MW GANSOW, OA STEPLEWSKI, Z BE Watson, EE Schlafkestelson, AT TI RADIATION-DOSIMETRY OF Y-90 LABELED MONOCLONAL-ANTIBODY CO17-1A PREPARED BY THE SITE-SPECIFIC NH2-BZ-DOTA-3A TECHNIQUE SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 144 EP 150 PG 7 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00012 ER PT B AU WATSON, EE AF WATSON, EE BE Watson, EE Schlafkestelson, AT TI RADIATION ABSORBED DOSE TO THE HUMAN FETAL THYROID SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 14 Z9 14 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 179 EP 187 PG 9 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00015 ER PT J AU STABIN, MG AF STABIN, MG BE Watson, EE Schlafkestelson, AT TI PREDICTION OF RADIATION-DOSE TO THE GI TRACT FROM ANALYSIS OF BLOOD AND LIVER TIME-ACTIVITY CURVES SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 2 Z9 2 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 202 EP 218 PG 17 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00017 ER PT J AU STUBBS, JB AF STUBBS, JB BE Watson, EE Schlafkestelson, AT TI A NEW MATHEMATICAL-MODEL OF GASTROINTESTINAL TRANSIT INCORPORATING AGE-DEPENDENT AND GENDER-DEPENDENT PHYSIOLOGICAL-PARAMETERS SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 229 EP 242 PG 14 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00019 ER PT B AU AKABANI, G POSTON, JW AF AKABANI, G POSTON, JW BE Watson, EE Schlafkestelson, AT TI ABSORBED DOSE CALCULATIONS TO BLOOD AND BLOOD-VESSELS FOR INTERNALLY DEPOSITED RADIONUCLIDES SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 BATTELLE MEM INST,PACIFIC NW LABS,DEPT HLTH PHYS,RICHLAND,WA 99352. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 243 EP 255 PG 13 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00020 ER PT B AU AKABANI, G POSTON, JW AF AKABANI, G POSTON, JW BE Watson, EE Schlafkestelson, AT TI REEVALUATION OF S-VALUES CONSIDERING ELECTRON-TRANSPORT SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 BATTELLE MEM INST,PACIFIC NW LABS,RICHLAND,WA 99352. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 274 EP 283 PG 10 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00022 ER PT J AU STUBBS, JB SMITH, GT STABIN, MG ECKERMAN, KF TURNER, JE AF STUBBS, JB SMITH, GT STABIN, MG ECKERMAN, KF TURNER, JE BE Watson, EE Schlafkestelson, AT TI AN APPROACH TO CELLULAR-LEVEL DOSIMETRY USING COMPARTMENTAL MODEL ANALYSIS AND DYNAMIC PET SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 385 EP 395 PG 11 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00031 ER PT J AU STABIN, MG TAYLOR, A CONWAY, JJ ESHIMA, D WOOTEN, W HALAMA, J AF STABIN, MG TAYLOR, A CONWAY, JJ ESHIMA, D WOOTEN, W HALAMA, J BE Watson, EE Schlafkestelson, AT TI RADIATION-DOSIMETRY FOR TC-99M MAG3 IN ADULTS AND CHILDREN SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 434 EP 442 PG 9 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00034 ER PT B AU STABIN, MG WATSON, EE AF STABIN, MG WATSON, EE BE Watson, EE Schlafkestelson, AT TI AN ALTERNATIVE TO CONVOLUTION INTEGRALS FOR RADIATION ABSORBED DOSE CALCULATIONS SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 1 Z9 1 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 457 EP 466 PG 10 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00036 ER PT B AU HUI, TE FISHER, DR JOHNSON, JR AF HUI, TE FISHER, DR JOHNSON, JR BE Watson, EE Schlafkestelson, AT TI LOCALIZED BETA-DOSIMETRY OF I-131 IN HUMAN THYROID SO 5TH INTERNATIONAL RADIOPHARMACEUTICAL DOSIMETRY SYMPOSIUM LA English DT Proceedings Paper CT 5th International Radiopharmaceutical Dosimetry Symposium CY MAY 07-10, 1991 CL OAK RIDGE, TN SP OAK RIDGE ASSOC UNIV, US FDA, US DOE C1 BATTELLE MEM INST,PACIFIC NW LABS,RICHLAND,WA 99352. NR 0 TC 0 Z9 0 U1 0 U2 0 PU US DEPT COMMERCE NATL TECH INFORMATION SERVICE PI WASHINGTON PA 14TH & CONSTITUTION AVE, WASHINGTON, DC 20230 PY 1992 BP 544 EP 556 PG 13 WC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging SC Oncology; Pharmacology & Pharmacy; Radiology, Nuclear Medicine & Medical Imaging GA BZ64A UT WOS:A1992BZ64A00044 ER PT B AU MAESHIMA, K AF MAESHIMA, K BE TranThanhVan, J TI HEAVY GAUGE BOSON AND LAMBDA(B) BARYON SEARCHES AT CDF SO '92 ELECTROWEAK INTERACTIONS AND UNIFIED THEORIES SE MORIOND PARTICLE PHYSICS MEETINGS LA English DT Proceedings Paper CT XXVIIth Rencontre de Moriond: 92 Electroweak Interactions and Unified Theories CY MAR 15-22, 1992 CL LES ARCS, FRANCE SP CNRS, CEA, NATL SCI FDN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-119-6 J9 MORIOND PAR PY 1992 BP 125 EP 130 PG 6 WC Physics, Particles & Fields SC Physics GA BB17R UT WOS:A1992BB17R00017 ER PT B AU RONAN, MT AF RONAN, MT BE TranThanhVan, J TI KAON CONTENT IN TAU-DECAYS SO '92 ELECTROWEAK INTERACTIONS AND UNIFIED THEORIES SE MORIOND PARTICLE PHYSICS MEETINGS LA English DT Proceedings Paper CT XXVIIth Rencontre de Moriond: 92 Electroweak Interactions and Unified Theories CY MAR 15-22, 1992 CL LES ARCS, FRANCE SP CNRS, CEA, NATL SCI FDN C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-119-6 J9 MORIOND PAR PY 1992 BP 499 EP 504 PG 6 WC Physics, Particles & Fields SC Physics GA BB17R UT WOS:A1992BB17R00056 ER PT J AU REED, DT TASKER, IR CUNNANE, JC VANDEGRIFT, GF AF REED, DT TASKER, IR CUNNANE, JC VANDEGRIFT, GF TI ENVIRONMENTAL RESTORATION AND SEPARATION SCIENCE SO ACS SYMPOSIUM SERIES LA English DT Review ID GROUNDWATER; SUPERFUND AB The problem of environmental restoration, specifically the cleanup of contaminated soils and groundwaters, is one of the most important technical and societal problems we face today. To provide a background to this problem, the extent and cost, laws and regulations, important contaminants, and key issues in environmental restoration are discussed. A brief introduction to the role of separation science, in relation to environmental restoration, is also given. C1 NATL INST PETROL & ENERGY RES,IIT RES INST,BARTLESVILLE,OK 74005. RP REED, DT (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 42 TC 8 Z9 8 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 509 BP 1 EP 19 PG 19 WC Chemistry, Multidisciplinary SC Chemistry GA KB613 UT WOS:A1992KB61300001 ER PT J AU CHIARIZIA, R HORWITZ, EP HODGSON, KM AF CHIARIZIA, R HORWITZ, EP HODGSON, KM TI REMOVAL OF INORGANIC CONTAMINANTS FROM GROUNDWATER - USE OF SUPPORTED LIQUID MEMBRANES SO ACS SYMPOSIUM SERIES LA English DT Review ID ACIDIC NUCLEAR WASTES; LANTHANIDES; SEPARATION; ACTINIDES; STABILITY; URANIUM AB This review paper summarizes the results of an investigation on the use of supported liquid membranes for the removal of uranium(VI) and some anionic contaminants (technetium(VII), chromium(VI) and nitrates) from the Hanford site groundwater. As a membrane carrier for U(VI), bis(2,4,4-trimethylpentyl)phosphinic acid was selected because of its high selectivity over calcium and magnesium. The water soluble complexing agent 1-hydroxyethane-1, 1-diphosphonic acid was used as stripping agent. For the anionic contaminants the long-chain aliphatic amines Primene JM-T (primary), Amberlite LA-2 (secondary) and trilaurylamine (tertiary) were investigated as membrane carriers. Among these amines, Amberlite LA-2 proved to be the most effective carrier for the simultaneous removal of the investigated anion contaminants. A good long-term stability (at least one month) of the liquid membranes was obtained, especially in the uranium(VI) removal. C1 WESTINGHOUSE HANFORD CO,RICHLAND,WA 99352. RP CHIARIZIA, R (reprint author), ARGONNE NATL LAB,DIV CHEM,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 8 TC 6 Z9 6 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 509 BP 22 EP 33 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA KB613 UT WOS:A1992KB61300002 ER PT J AU HUTTER, JC VANDEGRIFT, GF AF HUTTER, JC VANDEGRIFT, GF TI DECONTAMINATION OF GROUNDWATER BY USING MEMBRANE-ASSISTED SOLVENT-EXTRACTION SO ACS SYMPOSIUM SERIES LA English DT Review ID WATER; VOCS AB Development of a new process to remove volatile organic compounds (VOCs) at dilute concentrations from groundwater was recently begun at Argonne. This process consists of membrane-assisted solvent extraction and membrane-assisted distillation stripping (MASX/MADS). The use of membranes in the solvent extraction and distillation stripping units improves mass transfer by increasing the interfacial surface area, thus allowing the process to be performed efficiently at high throughputs. The thermodynamics and regions of applicability of this process are discussed. RP HUTTER, JC (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,SEPARAT SCI & TECHNOL SECT,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 34 TC 4 Z9 4 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 509 BP 47 EP 60 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA KB613 UT WOS:A1992KB61300004 ER PT J AU PETERS, RW SHEM, L AF PETERS, RW SHEM, L TI USE OF CHELATING-AGENTS FOR REMEDIATION OF HEAVY-METAL CONTAMINATED SOIL SO ACS SYMPOSIUM SERIES LA English DT Review AB The efficiency of removing lead (Pb) from a contaminated soil of high clay and silt content was studied in a laboratory investigation where chelating agents were used to extract the lead from the soil. Lead concentrations in the soil ranged from 500 to 10,000 mg/kg. Ethylenediaminetetraacetic acid (EDTA) and nitrilotriacetic acid (NTA) were examined for their potential extractive capabilities. Concentrations of the chelating agents examined in this study ranged from 0.01 to 0.10 M. The pH of the suspensions in which the extractions were performed ranged from 4 to 12. Results showed that the removal of lead using NTA and water was pH-dependent, whereas the removal of lead using EDTA was pH-insensitive. For an initial lead concentration of 10,000 mg/kg, the maximum removals of lead using EDTA, NTA, and water (compared with nominal initial Pb concentrations) were 64.2, 19.1, and 5.8%, respectively. RP PETERS, RW (reprint author), ARGONNE NATL LAB,DIV ENERGY SYST,9700 S CASS,ARGONNE,IL 60439, USA. NR 28 TC 48 Z9 48 U1 4 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 509 BP 70 EP 84 PG 15 WC Chemistry, Multidisciplinary SC Chemistry GA KB613 UT WOS:A1992KB61300006 ER PT J AU PETERS, RW MONTEMAGNO, CD SHEM, L LEWIS, BAG AF PETERS, RW MONTEMAGNO, CD SHEM, L LEWIS, BAG TI SURFACTANT FLOODING OF DIESEL-FUEL-CONTAMINATED SOIL SO ACS SYMPOSIUM SERIES LA English DT Review ID AQUIFERS AB The use of surfactants to mobilize oil in water solutions has been developed in the oil industry to enhance oil recovery from reservoirs. In contrast, the use of surfactants as a soil-remediation technique is not as well researched. This study used surfactant solutions to leach undisturbed soil cores taken from a site that had been contaminated with No. 2 diesel fuel after a puncture of a transfer line. Preliminary screening of 22 surfactants was performed prior to this study to choose the surfactants to be used in the flooding of the columns. The chosen surfactants resulted in 87% to 97% removal of the diesel fuel during batch extraction. Prior to flooding the columns with surfactants, the columns were leached with deionized water to compare with leaching by the surfactant. Water flooding resulted in removal of < 1% of the diesel fuel. Surfactant solutions removed generally < 1%. The poor removal efficiencies from the surfactant flooding, especially when compared with results from the surfactant screening extractions, were attributed to channeling of the solutions through the columns. The column floodings, therefore, were essentially nonequilibrium extractions, whereas the batch-screening extractions reached an equilibrium. C1 ARGONNE NATL LAB,DIV ENVIRONM RES,ARGONNE,IL 60439. NORTHWESTERN UNIV,MCCORMICK SCH ENGN & APPL SCI,DEPT CIVIL ENGN,EVANSTON,IL 60208. RP PETERS, RW (reprint author), ARGONNE NATL LAB,DIV ENERGY SYST,ARGONNE,IL 60439, USA. RI Lewis, Barbara-Ann/B-7027-2009 NR 16 TC 7 Z9 7 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 509 BP 85 EP 98 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA KB613 UT WOS:A1992KB61300007 ER PT J AU AUSTIN, LR AF AUSTIN, LR TI ADVANCED TESTING LINE FOR ACTINIDE SEPARATIONS - AN INTEGRATED APPROACH TO WASTE MINIMIZATION VIA ONLINE AT-LINE PROCESS ANALYTICAL-CHEMISTRY SO ACS SYMPOSIUM SERIES LA English DT Review AB A full scale Actinide Recovery Line has been designed and installed in the Plutonium Facility at Los Alamos National Laboratory. This system, called ATLAS (Advanced Testing Line for Actinide Separations) comprises operations ranging from dissolution, purification, and calcination, to waste stream polishing. The system is modular, such that new recovery technologies can be introduced into ATLAS and evaluated in an integrated manner with up-stream and down-stream recovery operations. A full spectrum of on-line and at-line analytical capabilities exist. The objective of this system is to demonstrate advanced technologies that can minimize or eliminate nuclear waste generation at the recovery site. The capabilities of the facility, as well as some of the development activities aimed at waste reduction and minimization, will be discussed. RP AUSTIN, LR (reprint author), LOS ALAMOS NATL LAB,POB 1663,MS E-501,LOS ALAMOS,NM 87545, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 508 BP 118 EP 124 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA JY551 UT WOS:A1992JY55100011 ER PT J AU VODINH, T GRIFFIN, GD ALARIE, JP SEPANIAK, MJ BOWYER, JR AF VODINH, T GRIFFIN, GD ALARIE, JP SEPANIAK, MJ BOWYER, JR TI DEVELOPMENT OF FIBEROPTIC IMMUNOSENSORS FOR ENVIRONMENTAL-ANALYSIS SO ACS SYMPOSIUM SERIES LA English DT Review ID MONOCLONAL-ANTIBODIES AB A review of the principle and applications of immunofluorescence spectroscopy to the development of antibody-based fiberoptics sensors is presented. Special focus is devoted to antibody-based fiberoptics fluoroimmunosensors developed to detect important pollutants such as the carcinogenic polyaromatic compounds or to aflatoxin. The fiberoptics sensor utilizes antibodies covalently bound to its tip or encapsulated on the probe tip. The usefulness of fluorimmmunosensors for environmental monitoring will be discussed. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. RP VODINH, T (reprint author), OAK RIDGE NATL LAB,ADV MONITORING DEV GRP,DIV HLTH & SAFETY RES,OAK RIDGE,TN 37831, USA. NR 16 TC 1 Z9 1 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 508 BP 270 EP 283 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA JY551 UT WOS:A1992JY55100022 ER PT J AU WATERS, LC SHAW, BJ CHANG, LY AF WATERS, LC SHAW, BJ CHANG, LY TI REGULATION OF THE GENE FOR DROSOPHILA P450-B1, A P450 ISOZYME ASSOCIATED WITH INSECTICIDE RESISTANCE SO ACS SYMPOSIUM SERIES LA English DT Review ID MUSCA-DOMESTICA; RNA DEGRADATION; ESTERASE GENE; MESSENGER-RNA; HOUSE-FLIES; MELANOGASTER; CYTOCHROME-P-450; SEQUENCE; STRAIN; DIMETHYLNITROSAMINE AB A structural change in the gene is involved in regulating the expression of Drosophila P450-B1, an insecticide resistance-associated P450 isozyme. The P450-B1 genes from a susceptible, 91-C, and a resistant, 91-R, strain were cloned and characterized. The gene of 91-C contains a solitary long terminal repeat (LTR) of transposable element 17.6 in its 3' untranslated region. It is absent from the gene of 91-R. It is postulated that an unstable, chimeric P450-B1 mRNA is made in the susceptible fly as a consequence of the presence of the LTR. Thus, the LTR is acting as a negative regulatory element to drastically reduce the level of P450-B1 in susceptible flies. C1 OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831. UNIV TENNESSE,OAK RIDGE GRAD SCH BIOMED SCI,OAK RIDGE,TN 37831. NR 49 TC 5 Z9 5 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 505 BP 41 EP 52 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA JV463 UT WOS:A1992JV46300004 ER PT J AU WAGNER, AF HARDING, LB AF WAGNER, AF HARDING, LB TI ISOTOPE EFFECTS IN ADDITION-REACTIONS OF IMPORTANCE IN COMBUSTION THEORETICAL-STUDIES OF THE REACTIONS CH+H2-REVERSIBLE-ARROW-CH3-ASTERISK-REVERSIBLE-ARROW-CH2+H SO ACS SYMPOSIUM SERIES LA English DT Review ID THERMAL UNIMOLECULAR REACTIONS; CH; TEMPERATURE; KINETICS; PRESSURES; MECHANISMS; DEPENDENCE; MOLECULES; HYDROGEN; ATOMS AB Ab initio electronic structure characterizations of the addition reaction path for the title reaction are described. Variational RRKM calculations employing the reaction path properties are then used to compute thermal rate constants for comparison to kinetics measurements on the title reactions and its isotopic variation. RP WAGNER, AF (reprint author), ARGONNE NATL LAB, DIV CHEM, ARGONNE, IL 60439 USA. NR 39 TC 9 Z9 9 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 502 BP 48 EP 63 PG 16 WC Chemistry, Multidisciplinary SC Chemistry GA JY550 UT WOS:A1992JY55000004 ER PT J AU MICHAEL, JV AF MICHAEL, JV TI ISOTOPE EFFECTS AT HIGH-TEMPERATURES STUDIED BY THE FLASH OR LASER PHOTOLYSIS - SHOCK-TUBE TECHNIQUE SO ACS SYMPOSIUM SERIES LA English DT Review ID POTENTIAL-ENERGY SURFACE; REDUCED DIMENSIONALITY QUANTUM; TRANSITION-STATE THEORY; QUASICLASSICAL REACTION PROBABILITIES; THERMAL RATE COEFFICIENT; COLLINEAR EXACT QUANTUM; MANY-BODY EXPANSION; RATE CONSTANTS; REACTION DYNAMICS; ADIABATIC INCORPORATION AB During the past five years, the flash or laser photolysis-shock tube (FP or LP-ST) technique has been used to measure absolute thermal bimolecular rate constants in a previously difficult temperature range, approximately 700-2500 K. The technique is described. Protonated and deuterated versions of six reactions have been studied to date. The reactions are C2H(C2D) + C2H2(C2D2), O + C2H2(C2D2), H(D) + O2, H(D) + H2O(D2O), O + H2(D2), and D(H) + H-2(D2). These results are reviewed. In many cases the high temperature results can be combined with lower temperature results, and the experimental isotope effects can then be determined over a very large range of temperature. For one of the cases to be discussed, namely the isotope effect between D + H-2 and H + D2, the range of temperature is from approximately 200-2000 K. This large range then gives an unprecedented opportunity for experimental comparison to theoretical predictions of isotope effects since data now exist (a) at low temperatures where quantum mechanical tunneling predominates and (b) at high temperatures where tunneling is unimportant. RP MICHAEL, JV (reprint author), ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439, USA. RI Michael, Joe/E-3907-2010 NR 71 TC 4 Z9 4 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 502 BP 80 EP 93 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA JY550 UT WOS:A1992JY55000006 ER PT J AU CARMAN, HS KLOTS, CE COMPTON, RN AF CARMAN, HS KLOTS, CE COMPTON, RN TI NEGATIVE-ION FORMATION BY RYDBERG ELECTRON-TRANSFER - ISOTOPE-DEPENDENT RATE CONSTANTS SO ACS SYMPOSIUM SERIES LA English DT Review ID INTERMEDIATE-N; CS2; COLLISIONS; SPECTROSCOPY; AFFINITIES; ATOMS; SO2; IONIZATION; K(ND)-SF6; STATES AB The formation of negative ions during collisions of rubidium atoms in selected ns and nd Rydberg states with carbon disulfide molecules has been studied for a range of effective principal quantum numbers (10 less-than-or-equal-to n* less-than-or-equal-to 25). For a narrow range of n* near n* = 17, rate constants for CS2- formation are found to depend upon the isotopic composition of the molecule, producing a negative ion isotope ratio (mass 78 to mass 76, amu) up to 10.5 times larger than the natural abundance ratio of CS2 isotopes in the reagent. The isotope ratio is found to depend strongly upon the initial quantum state of the Rydberg atom and perhaps upon the collision energy and CS2 temperature. RP CARMAN, HS (reprint author), OAK RIDGE NATL LAB,DIV HLTH & SAFETY RES,CHEM PHYS SECT,OAK RIDGE,TN 37831, USA. NR 31 TC 3 Z9 3 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 502 BP 181 EP 192 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA JY550 UT WOS:A1992JY55000012 ER PT J AU LI, DQ HUCKETT, SC FRANKCOM, T PAFFETT, MT FARR, JD HAWLEY, ME GOTTESFELD, S THOMPSON, JD BURNS, CJ SWANSON, BI AF LI, DQ HUCKETT, SC FRANKCOM, T PAFFETT, MT FARR, JD HAWLEY, ME GOTTESFELD, S THOMPSON, JD BURNS, CJ SWANSON, BI TI SYNTHESIS AND PROPERTIES OF NOVEL LOW-DIMENSIONAL RUTHENIUM MATERIALS - SELF-ASSEMBLED MULTILAYERS AND MIXED INORGANIC ORGANIC POLYMERS SO ACS SYMPOSIUM SERIES LA English DT Review ID NONLINEAR OPTICAL-MATERIALS; CRYSTAL-STRUCTURES; LANGMUIR-BLODGETT; MONOLAYERS; COMPLEXES; SURFACES; LAYERS; FILMS AB Low-dimensional ruthenium materials, built either from molecular self-assemblies, by using multidentate ligands and Ru(H2O)62+ or Ru2(O2CR)4 polymeric building blocks, are reported. The molecular self-assemblies and their derivative Ru films have been characterized by ellipsometry, FTIR-ATR, UV absorption spectroscopy, XPS, SIMS and STM. Polymers built from Ru2(O2CR)4 and 2,5-dimethyldicyanoquinonediimine (DMDCNQI) have been synthesized and characterized by elemental analysis and IR and UV-Vis spectroscopies. For DMDCNQI, these results indicate the formation of chains of oxidized Ru2(O2CR)4 centers symmetrically bridged by radical DMDCNQI anions. The magnetic properties of these polymers as a function of tuning via the carboxylate R-group are discussed. RP LI, DQ (reprint author), LOS ALAMOS NATL LAB,INORGAN & STRUCT CHEM GRP INC 4,LOS ALAMOS,NM 87545, USA. NR 24 TC 9 Z9 9 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 499 BP 33 EP 45 PG 13 WC Chemistry, Multidisciplinary SC Chemistry GA JG850 UT WOS:A1992JG85000004 ER PT J AU RIEKE, PC TARASEVICH, BJ BENTJEN, SB FRYXELL, GE CAMPBELL, AA AF RIEKE, PC TARASEVICH, BJ BENTJEN, SB FRYXELL, GE CAMPBELL, AA TI BIOMIMETIC THIN-FILM SYNTHESIS SO ACS SYMPOSIUM SERIES LA English DT Review ID BOVINE DENTIN PHOSPHOPHORYN; MONOLAYERS; NUCLEATION; MATRIX AB Surfaces derivatized with organic functional groups were used to promote the deposition of thin films of inorganic minerals. These derivatized surfaces were designed to mimic the nuleation proteins that control mineral deposition during formation of bone, shell and other hard tissues in living organisms. By use of derivatized substrates, control was obtained over the phase of mineral deposited, the orientation of the crystal lattice, and the location of deposition. These features are of considerable importance in many technically important thin films, coatings, and composite materials. Methods of derivatizing surfaces are considered and examples of controlled mineral deposition am presented. RP RIEKE, PC (reprint author), PACIFIC NW LAB, DEPT MAT SCI, RICHLAND, WA 99352 USA. NR 27 TC 14 Z9 14 U1 2 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 499 BP 61 EP 75 PG 15 WC Chemistry, Multidisciplinary SC Chemistry GA JG850 UT WOS:A1992JG85000006 ER PT J AU CARRADO, KA ANDERSON, KB GRUTKOSKI, PS AF CARRADO, KA ANDERSON, KB GRUTKOSKI, PS TI THERMAL-ANALYSIS OF PORPHYRIN CLAY COMPLEXES SO ACS SYMPOSIUM SERIES LA English DT Review ID SILICATES AB Aluminosilicate smectite clays have been ion-exchanged with water-soluble, cationic porphyrins and metalloporphyrins. Characteristics of their thermal stability were measured by thermal gravimetric analysis in an inert atmosphere, which yielded approximately 60% weight loss of organics. Detailed structural information about the decomposition products was obtained by performing pyrolysis-gas chromatography-mass spectrometry on the clay-organic complexes. RP CARRADO, KA (reprint author), ARGONNE NATL LAB,DIV CHEM 200,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 12 TC 4 Z9 4 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 499 BP 155 EP 165 PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA JG850 UT WOS:A1992JG85000012 ER PT J AU NUTTALL, HE RAO, S JAIN, R LONG, R TRIAY, IR AF NUTTALL, HE RAO, S JAIN, R LONG, R TRIAY, IR TI COLLOID REMEDIATION IN GROUNDWATER BY POLYELECTROLYTE CAPTURE SO ACS SYMPOSIUM SERIES LA English DT Review AB The presence of radioactive colloids (radiocolloids) in groundwater has been documented in several studies. There is significant evidence to indicate that these colloids may accelerate the transport of radioactive species in groundwater. Because field experiments are often fraught with uncertainties, colloid migration in groundwater is an area of active research and the role and existence of radiocolloids is being investigated. This paper describes an ongoing study to characterize groundwater colloids, to understand the geochemical factors affecting colloid transport in groundwater, and to develop an in-situ colloid remediation process. The colloids and suspended particulate matter used in this study were collected from a perched aquifer site (located at Los Alamos National Laboratory's Mortandad Canyon in northern New Mexico, USA) that has radiation levels several hundred times the natural background and where previous researchers have measured and reported the presence of radiocolloids containing plutonium and americium. At this site, radionuclides have spread over several kilometers. Inorganic colloids collected from water samples are characterized with respect to concentration, mineralogy, size distribution, electrophoretic mobility (zeta potential), and radioactivity levels. Presented are the methods used to investigate the physiochemical factors affecting colloid transport and the preliminary analytical results. Included below are a description of a colloid transport model and the corresponding computational code, water analyses, characterization of the inorganic colloids, and a conceptual description of a process for in-situ colloid remediation using the phenomenon of polyelectrolyte capture. C1 NEW MEXICO STATE UNIV,DEPT CHEM ENGN,LAS CRUCES,NM 88003. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. RP NUTTALL, HE (reprint author), UNIV NEW MEXICO,DEPT CHEM & NUCL ENGN,ALBUQUERQUE,NM 87131, USA. NR 20 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 491 BP 71 EP 82 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA HX625 UT WOS:A1992HX62500007 ER PT J AU GORTON, L HALE, PD PERSSON, B HALE, PD BOGUSLAVSKY, LI KARAN, HI LEE, HS SKOTHEIM, TA LAN, HL OKAMOTO, Y AF GORTON, L HALE, PD PERSSON, B HALE, PD BOGUSLAVSKY, LI KARAN, HI LEE, HS SKOTHEIM, TA LAN, HL OKAMOTO, Y TI ELECTROCATALYTIC OXIDATION OF NICOTINAMIDE ADENINE-DINUCLEOTIDE COFACTOR AT CHEMICALLY MODIFIED ELECTRODES SO ACS SYMPOSIUM SERIES LA English DT Review ID CARBON PASTE ELECTRODES; IMMOBILIZED ENZYME REACTORS; CATALYTIC VOLTAMMETRIC SENSORS; PARA-BENZOQUINONE DERIVATIVES; NAD-DEPENDENT DEHYDROGENASE; HYDRIDE-TRANSFER-REACTIONS; ELECTROCHEMICAL OXIDATION; GLASSY-CARBON; AMPEROMETRIC DETECTION; GRAPHITE-ELECTRODES AB Chemically modified electrodes (CMEs) for electrocatalytic oxidation of the reduced form of the nicotinamide adenine dinucleotide cofactor (NADH) are discussed. The work of the authors in the field is reviewed. CMEs based on adsorbed polyaromatic redox mediators (phenoxazines and phenothiazines) and the deposition of aqueous insoluble redox polymers are described. C1 SUNY STONY BROOK, MOLTECH CORP, STONY BROOK, NY 11794 USA. CUNY MEDGAR EVERS COLL, DEPT CHEM, DIV NAT SCI & MATH, BROOKLYN, NY 11225 USA. BROOKHAVEN NATL LAB, DEPT APPL SCI, DIV MAT SCI, UPTON, NY 11973 USA. POLYTECH INST NEW YORK, DEPT CHEM, BROOKLYN, NY 11201 USA. RP GORTON, L (reprint author), UNIV LUND, DEPT ANALYT CHEM, POB 124, S-22100 LUND, SWEDEN. NR 129 TC 2 Z9 2 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 487 BP 56 EP 83 PG 28 WC Chemistry, Multidisciplinary SC Chemistry GA HX624 UT WOS:A1992HX62400007 ER PT J AU HALE, PD BOGUSLAVSKY, LI SKOTHEIM, TA LIU, LF LEE, HS KARAN, HI LAN, HL OKAMOTO, Y AF HALE, PD BOGUSLAVSKY, LI SKOTHEIM, TA LIU, LF LEE, HS KARAN, HI LAN, HL OKAMOTO, Y TI ELECTRICAL WIRING OF FLAVOENZYMES WITH FLEXIBLE REDOX POLYMERS SO ACS SYMPOSIUM SERIES LA English DT Review ID CARBON-PASTE ELECTRODE; CHEMICALLY MODIFIED ENZYMES; ADSORBED GLUCOSE-OXIDASE; AMPEROMETRIC DETERMINATION; SILOXANE POLYMERS; L-GLUTAMATE; MODIFIED GRAPHITE; METAL-ELECTRODES; FERROCENE; COMMUNICATION AB It is well known that the flavin adenine dinucleotide redox centers of many oxidases are electrically inaccessible due to the insulating effect of the surrounding protein; thus, direct electron transfer from the reduced enzyme to a conventional electrode is negligible. In the present work, a variety of polymeric materials have been developed which can facilitate a flow of electrons from the flavin redox centers of oxidases to an electrode. Highly flexible siloxane and ethylene oxide polymers containing covalently attached redox moieties, such as ferrocene, are shown to be capable of rapidly re-oxidizing the reduced flavoenzyme. The construction and response of amperometric biosensors for glucose, acetylcholine, and glutamate based on these polymeric materials are described, and the dependence of sensor response on the polymer structure is discussed. C1 BROOKHAVEN NATL LAB, DEPT APPL SCI, DIV MAT SCI, UPTON, NY 11973 USA. CUNY MEDGAR EVERS COLL, DEPT CHEM, DIV NAT SCI & MATH, BROOKLYN, NY 11225 USA. POLYTECH INST NEW YORK, DEPT CHEM, BROOKLYN, NY 11201 USA. RP HALE, PD (reprint author), SUNY STONY BROOK, MOLTECH CORP, CHEM BLDG, STONY BROOK, NY 11794 USA. NR 38 TC 1 Z9 1 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 487 BP 111 EP 124 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA HX624 UT WOS:A1992HX62400010 ER PT J AU DUGGER, MT PEEBLES, DE POPE, LE AF DUGGER, MT PEEBLES, DE POPE, LE TI COUNTERFACE MATERIAL AND AMBIENT ATMOSPHERE - ROLE IN THE TRIBOLOGICAL PERFORMANCE OF DIAMOND FILMS SO ACS SYMPOSIUM SERIES LA English DT Review ID FRICTION; SILICON AB Diamond films are attractive as tribological coatings due to their extreme hardness, as well as thermal and chemical stability. Widespread use of these films requires a thorough understanding of how friction and wear are influenced by chemical interaction with the counterface material and the ambient atmosphere. We have evaluated the sliding contact of diamond films deposited on silicon wafers against 440C stainless steel and diamond-coated silicon carbide in pin-on-disk friction tests. The friction coefficient has been determined for these material combinations in ultrahigh vacuum, air, oxygen and water vapor atmospheres. The diamond surfaces have been characterized in situ after sliding by Auger electron spectroscopy, electron energy loss spectroscopy, and a specially developed charging probe technique to assess surface modifications that occur due to wear. The topography of the diamond surface has been characterized ex situ with atomic force microscopy. Correlations are discussed between the chemistry and morphology of the diamond surface and the tribological test conditions. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 21 TC 23 Z9 23 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 485 BP 72 EP 102 PG 31 WC Chemistry, Multidisciplinary SC Chemistry GA HT789 UT WOS:A1992HT78900006 ER PT J AU SOMORJAI, GA SALMERON, M AF SOMORJAI, GA SALMERON, M TI THE ROLE OF SULFUR IN MODIFYING THE FRICTION AND LUBRICITY OF METAL-SURFACES SO ACS SYMPOSIUM SERIES LA English DT Review ID SCANNING TUNNELING MICROSCOPY; SINGLE-CRYSTAL SURFACES; CARBON-MONOXIDE; LEED AB Recent surface crystallography studies using scanning tunneling microscopy and low energy electron diffraction reveal the coverage dependent changes of the surface structure of sulfur on rhenium surfaces. There is evidence of metal reconstruction as the sulfur metal bonds are formed and there is evidence of clustering of sulfur atoms that form trimers, tetramers and hexamers at increased coverages. Contact experiments using the STM reveal that the elastic properties of the surface are maintained by the protecting S overlayer. The implications of the STM and LEED crystallography findings to tribology and the importance of sulfur monolayers in modifying the mechanical properties of surfaces are discussed. C1 UNIV CALIF BERKELEY, DEPT CHEM, BERKELEY, CA 94720 USA. LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA. NR 17 TC 2 Z9 2 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 485 BP 103 EP 111 PG 9 WC Chemistry, Multidisciplinary SC Chemistry GA HT789 UT WOS:A1992HT78900007 ER PT J AU POST, WM CHAVEZ, F MULHOLLAND, PJ PASTOR, J PENG, TH PRENTICE, K WEBB, T AF POST, WM CHAVEZ, F MULHOLLAND, PJ PASTOR, J PENG, TH PRENTICE, K WEBB, T TI CLIMATIC FEEDBACKS IN THE GLOBAL CARBON-CYCLE SO ACS SYMPOSIUM SERIES LA English DT Review ID ATMOSPHERIC CO2 VARIATIONS; OXYGEN UTILIZATION RATES; SUB-TROPICAL GYRE; PAST 2 CENTURIES; NORTH-ATLANTIC; DEEP-OCEAN; OLIGOTROPHIC SYSTEMS; EQUATORIAL PACIFIC; DIOXIDE LEVELS; NITROGEN AB Increasing atmospheric CO2 is likely to produce chronic changes in global climate, as it may have done in the geologic past. Future CO2-induced changes in temperature and precipitation distribution changes could equal or exceed the changes which have occurred over the past 160,000 years and have affected the global carbon cycle. We consider ocean and terrestrial processes that could involve large changes in carbon fluxes (> 2 Pg C.yr-1) or changes in storage in large carbon pools (> 200 Pg C) resulting from CO2-induced climate changes. These include (1) air-sea exchange of CO2 in response to changes in temperature and salinity; (2) climate-induced changes in ocean circulation; (3) changes in oceanic new production and regeneration of organic debris caused directly by climate change; (4) altered oceanic nutrient supply needed to support new production due to climate-induced alteration of ocean circulation and river discharge; (5) CaCO3 compensation in sea water; (6) altered river nutrient flux and effects on coastal organic matter production and sediment accumulation; (7) seasonal balance between GPP and decomposition-respiration in terrestrial ecosystems in response to changes in temperature and precipitation; (8) successional processes in terrestrial ecosystems and formation of new plant associations in response to climatic change; (9) effects on soil nutrient availability, which amplifies ecosystem responses to climate change; (10) and responses of northern forests, tundra, and peatlands which have, until recently, been a sink for CO2. The potential effect of these processes on the rate of atmospheric CO2 concentration changes are estimated where possible, but not much quantitative information at a global scale is known, so uncertainty in these estimates is high. Each of these secondary feedbacks, however, has the potential of changing atmospheric CO2 concentration in magnitude similar to the effects of the direct human processes (fossil fuel burning and land clearing) responsible for the concern about global warming in the first place. It is therefore urgent that these uncertainties be resolved. Lines of research to accomplish this are suggested. C1 MONTEREY BAY AQUARIUM RES INST, PACIFIC GROVE, CA 93950 USA. UNIV MINNESOTA, NAT RESOURCES RES INST, DULUTH, MN 55811 USA. NASA, GODDARD SPACE FLIGHT CTR, INST SPACE STUDIES, NEW YORK, NY 10025 USA. BROWN UNIV, DEPT GEOL SCI, PROVIDENCE, RI 02912 USA. RP POST, WM (reprint author), OAK RIDGE NATL LAB, DIV ENVIRONM SCI, POB 2008, OAK RIDGE, TN 37831 USA. RI Pastor, John/F-6241-2011; Mulholland, Patrick/C-3142-2012; Post, Wilfred/B-8959-2012 NR 81 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 483 BP 392 EP 412 PG 21 WC Chemistry, Multidisciplinary SC Chemistry GA HG426 UT WOS:A1992HG42600027 ER PT J AU SOMORJAI, GA KIM, CM KNIGHT, C AF SOMORJAI, GA KIM, CM KNIGHT, C TI BUILDING OF COMPLEX CATALYSTS ON SINGLE-CRYSTAL SURFACES SO ACS SYMPOSIUM SERIES LA English DT Review ID THIOPHENE HYDRODESULFURIZATION; AMMONIA-SYNTHESIS; TEMPERATURE-DEPENDENCE; TITANIA OVERLAYERS; EXCHANGE-REACTION; CO HYDROGENATION; PLATINUM; OXIDE; IRON; CHEMISORPTION AB Combined catalytic reaction and surface science studies using small area metal single crystal surfaces have shown these systems to be excellent model catalysts. In order to investigate more complex, multicomponent catalysts, other metals, oxides, chlorine, and sulfur were deposited from the vapor phase in controlled concentrations on the metal single crystals or Polycrystalline foils to investigate their functions as structure or bonding modifiers. From studies of several of the complex catalyst systems (Pt/Au, Pt/Al2O3, Pt/Al2O3/Cl, Fe/Al2O3, Fe/Al2O3/K, Pt/Re, Pt/Re/S, Mo/S, Mo/Co/s), the molecular ingredients of their catalytic performance have been identified. These are the a) need for surface roughness; b) structural stabilization of rough surfaces; c) the presence of a strongly chemisorbed overlayer that causes surface restructuring; d) bonding modifier coadsorbates; 3) active oxide-metal interfaces and f) active bimetallic interfaces. C1 UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA. RP SOMORJAI, GA (reprint author), UNIV CALIF BERKELEY, DEPT CHEM, BERKELEY, CA 94720 USA. NR 57 TC 1 Z9 1 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 482 BP 108 EP 129 PG 22 WC Chemistry, Multidisciplinary SC Chemistry GA HF544 UT WOS:A1992HF54400007 ER PT J AU PEDEN, CHF AF PEDEN, CHF TI CARBON-MONOXIDE OXIDATION ON MODEL SINGLE-CRYSTAL CATALYSTS SO ACS SYMPOSIUM SERIES LA English DT Review ID LOW-TEMPERATURE DEACTIVATION; CO OXIDATION; SURFACE SCIENCE; KINETICS; PLATINUM; PALLADIUM; PRESSURE; RH(111); METALS; NO AB The activity of a variety of model single crystal catalysts [e.g., Rh(111), Rh(100), Ru(001), Ru(101), Pt(100), Pd(110), Ir(111), and Ir(110)] for CO oxidation has been studied. Kinetic measurements as a function of temperature and partial pressure of O2 and CO in a high-pressure reactor - UHV surface analysis apparatus over the temperature range 425 to 725 K, and pressure range of 0.1 to 600 torr have been made. From the measured rate parameters, the reaction mechanisms for a variety of experimental conditions are proposed. In addition, a number of ex-situ probes of the surface composition and structure are used, including Auger electron, X-ray photoelectron, and high-resolution electron energy loss spectroscopies, temperature programmed desorption, and low-energy electron diffraction. Recently, we have also used fourier transform reflection-absorption infrared spectroscopy as an in-situ probe of reaction intermediates. The behavior of the various metals is exemplified by Rh and Ru whose reactivity patterns will be compared and contrasted in this paper. For all of the metal surfaces studied to date, the reaction kinetics (specific rates and their dependence on the reactant partial pressures) that are measured on the model single crystal catalysts are in excellent agreement with results obtained previously for high surface area supported catalysts, demonstrating the structure insensitivity of this reaction. For Rh, Pt, Pd and Ir, we observe simple Arrhenius behavior over most of the temperature range studied with activation energies ranging between 22 and 33 kcal/mol, close to the desorption energy of CO from these surfaces. These results (and the partial pressure dependencies of the reaction) are consistent with the generally accepted model in which the formation of CO2 occurs by the Langmuir-Hinshelwood reaction between CO molecules and O atoms, both chemisorbed to the metal surface. In contrast, the reaction kinetics measured on Ru are not readily reconciled within such a model, and further suggest that the mechanism may involve the direct reaction between gas-phase or weakly bound (physisorbed) CO molecules and chemisorbed oxygen on Ru (Eley-Rideal mechanism). RP SANDIA NATL LABS, DIV INORGAN MAT CHEM, ALBUQUERQUE, NM 87185 USA. NR 37 TC 3 Z9 3 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 482 BP 143 EP 159 PG 17 WC Chemistry, Multidisciplinary SC Chemistry GA HF544 UT WOS:A1992HF54400009 ER PT J AU GLAND, JL RUFAEL, T FISCHER, DA AF GLAND, JL RUFAEL, T FISCHER, DA TI ULTRASOFT X-RAY ABSORPTION DETECTED BY FLUORESCENCE YIELD - INSITU METHOD FOR CHARACTERIZING ADSORBATES AND SURFACE-REACTIONS SO ACS SYMPOSIUM SERIES LA English DT Review ID FINE-STRUCTURE; PT(111) SURFACE; HYDROGEN ADSORPTION; CARBON-MONOXIDE; BOND LENGTHS; CO; METHANETHIOL; NI(100); CHEMISORPTION; PHOTOEMISSION AB The recent development of ultra soft X-Ray fluorescence detection methods have greatly enhanced our ability to characterize adsorbed species and surface reactions containing low-Z elements. Three examples of surface processes involving carbon containing species are summarized here to illustrate the interesting capabilities of Fluorescence Yield Near Edge Spectroscopy (FYNES). Transient in-situ studies have revealed that more strongly adsorbed carbon monoxide is displaced well below it's usual desorption temperature for hydrogen pressures above 0.01 torr on both the Pt(111) and Ni(100) surfaces. Transient in-situ kinetic studies of hydrogen induced C-S bond activation in adsorbed methylthiolate on the Pt(111) surface have also been performed for hydrogen pressures in the 10(-4) to 10(-2) torr range. Taken together these examples suggest that a broad range of adsorbed species and elementary surface reaction steps can be characterized by this new in-situ method. C1 NATL INST STAND & TECHNOL, GAITHERSBURG, MD 20899 USA. BROOKHAVEN NATL LAB, NATL SYNCHROTRON LIGHT SOURCE, UPTON, NY 11973 USA. RP GLAND, JL (reprint author), UNIV MICHIGAN, DEPT CHEM, ANN ARBOR, MI 48109 USA. NR 53 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 482 BP 183 EP 201 PG 19 WC Chemistry, Multidisciplinary SC Chemistry GA HF544 UT WOS:A1992HF54400012 ER PT J AU FISCHER, JE HEINEY, PA LUZZI, DE COX, DE AF FISCHER, JE HEINEY, PA LUZZI, DE COX, DE TI SOLID C-60 - STRUCTURE, BONDING, DEFECTS, AND INTERCALATION SO ACS SYMPOSIUM SERIES LA English DT Article AB In this chapter, we review our X-ray and electron diffraction studies of pristine solid fullerite and the binary compounds obtained by doping to saturation with potassium, rubidium, or cesium. We describe an efficient and physically appealing method to model the high-temperature plastic crystal phase of solid C60. A crystallographic analysis of the low-temperature orientationally ordered phase is presented. A native stacking defect is identified by electron diffraction, and its influence on powder X-ray profiles is explained. The compressibility of fullerite is consistent with van der Waals intermolecular bonding. Saturation doping with alkali metals leads to a composition M6C60 (M is K, Rb, or Cs) and a transition of the C60 sublattice from face-centered cubic to body-centered cubic (fcc to bcc). C1 UNIV PENN, DEPT PHYS, PHILADELPHIA, PA 19104 USA. BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA. RP FISCHER, JE (reprint author), UNIV PENN, DEPT MAT SCI, RES STRUCT MATTER LAB, PHILADELPHIA, PA 19104 USA. NR 26 TC 9 Z9 9 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 481 BP 55 EP 69 PG 15 WC Chemistry, Multidisciplinary SC Chemistry GA HF543 UT WOS:A1992HF54300004 ER PT J AU OLSEN, KB GRIFFIN, JW MATSON, BS KIEFER, TC FLYNN, CJ AF OLSEN, KB GRIFFIN, JW MATSON, BS KIEFER, TC FLYNN, CJ TI A FIBEROPTIC SPECTROCHEMICAL-EMISSION SENSOR AS A DETECTOR FOR VOLATILE CHLORINATED COMPOUNDS SO ACS SYMPOSIUM SERIES LA English DT Review ID GAS-CHROMATOGRAPHY AB A radio frequency induced helium plasma (RFIHP) detector was designed and tested as a sensor for volatile chlorinated compounds. The RFIHP detector uses a critical orifice air inlet and an RF-excited sub-atmospheric pressure helium plasma to excite the ambient air sample. The excitation source is coupled to a fiber-optic cable and associated collection optics to monitor the emission intensity of the 837.6-nm emission line of chlorine. The RFIHP detector demonstrated linearity from 0 to 500 ppmv carbon tetrachloride with a correlation coefficient of 0.996 and excellent reproducibility. The detection limit for carbon tetrachloride in air was 5 ppmv. Fluorinated compounds can also be readily analyzed by changing the analytical wavelength to 739.9 nm. C1 EASTERN WASHINGTON UNIV, DEPT PHYS, CHENEY, WA 99004 USA. RP OLSEN, KB (reprint author), PACIFIC NW LAB, POB 999, RICHLAND, WA 99352 USA. NR 9 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0097-6156 J9 ACS SYM SER PY 1992 VL 479 BP 326 EP 337 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA GZ326 UT WOS:A1992GZ32600019 ER PT J AU CHUM, HL POWER, AJ AF CHUM, HL POWER, AJ TI OPPORTUNITIES FOR THE COST-EFFECTIVE PRODUCTION OF BIOBASED MATERIALS SO ACS SYMPOSIUM SERIES LA English DT Review AB There are a number of evolving technologies that convert wood, wood waste, agricultural residues, and recycled fibers into new biobased materials such as composites that incorporate additional plastics and other materials. The use of non-woven technologies to produce mats that can be molded into shaped parts is very common in the composites industry. The direct use of the thermally treated fibers is possible; however, chemically modified fibers improve the chemical, physical, and biological properties significantly. To illustrate the potential of biobased fibers in composites, a technoeconomic analysis of wood acetylation is presented. Worldwide trends in the use of chemically modified wood products are described in relation to their possible market penetration relative to the current products. C1 ARTHUR J POWER & ASSOCIATES INC, BOULDER, CO 80304 USA. RP CHUM, HL (reprint author), SOLAR ENERGY RES INST, CHEM CONVERS RES BRANCH, 1617 COLE BLVD, GOLDEN, CO 80401 USA. NR 41 TC 0 Z9 0 U1 2 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 476 BP 28 EP 41 PG 14 WC Chemistry, Multidisciplinary SC Chemistry GA GW627 UT WOS:A1992GW62700003 ER PT J AU CHUM, HL POWER, AJ AF CHUM, HL POWER, AJ TI THE PROMISE AND PITFALLS OF BIOMASS AND WASTE CONVERSION SO ACS SYMPOSIUM SERIES LA English DT Review ID STEAM-EXPLOSION PROCESS; CARBONACEOUS FUELS; PHENOLYSIS LIGNIN; MOLECULAR-BEAM; WOOD ADHESIVES; PYROLYSIS AB Technologies are continuing to evolve for converting wood, wood waste, agricultural residues, and the organic portion of municipal solid waste into a variety of chemicals. Although many chemicals can be made in this way, this paper considers only the production of phenolics from lignocellulosic biomass. In particular, examples will be given of technologies that are evolving to replace phenol used in phenol-formaldehyde thermosetting resins. Under consideration are (1) the high-temperature, short-residence-time pyrolysis of waste wood and bark coupled to solvent fractionation into an inexpensive phenolic and neutrals (P/N) product; (2) the direct liquefaction of wood in phenolic solvents at milder temperature, but longer residence time; and (3) the demethylation of kraft lignin at moderate temperature and long residence time followed by solvent extraction. A condensed, preliminary technoeconomic assessment of each technology is given, based on process flow sheets and mass and energy balances. The potential penetration of these types of products is discussed relative to the situation in the established petrochemical industry. C1 ARTHUR J POWER & ASSOCIATES INC, BOULDER, CO 80304 USA. RP SOLAR ENERGY RES INST, CHEM CONVERS RES BRANCH, 1617 COLE BLVD, GOLDEN, CO 80401 USA. NR 46 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 476 BP 339 EP 353 PG 15 WC Chemistry, Multidisciplinary SC Chemistry GA GW627 UT WOS:A1992GW62700020 ER PT J AU GROHMANN, K WYMAN, CE HIMMEL, ME AF GROHMANN, K WYMAN, CE HIMMEL, ME TI POTENTIAL FOR FUELS FROM BIOMASS AND WASTES SO ACS SYMPOSIUM SERIES LA English DT Review ID ENZYMATIC-HYDROLYSIS; STEAM EXPLOSION; SULFUR-DIOXIDE; D-XYLOSE; ACID; FERMENTATION; ETHANOL; CELLULASE; RESIDUES AB Current uncertainty about petroleum supplies and the third sharp rise in petroleum prices in the last 20 years have returned us to the fact that all modern, and many developing, countries have become utterly dependent on petroleum imports for their energy needs. No country has used fully the lessons of the recent past to develop an industrial base for the production of alternative fuels from domestic resources. Many liquid and several gaseous fuels can be produced from the fermentation of treated biomass. The commercial success of this approach appears increasingly assured due primarily to the aggressive application of research and engineering resources to key steps in conversion processes. C1 SOLAR ENERGY RES INST, DIV FUELS & CHEM RES & ENGN, BIOTECHNOL RES BRANCH, GOLDEN, CO 80401 USA. NR 112 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0097-6156 J9 ACS SYM SER JI ACS Symp. Ser. PY 1992 VL 476 BP 354 EP 392 PG 39 WC Chemistry, Multidisciplinary SC Chemistry GA GW627 UT WOS:A1992GW62700021 ER PT J AU JONES, EM AF JONES, EM TI PUTTING SPACE RESOURCES TO WORK SO ACTA ASTRONAUTICA LA English DT Article AB Resource development in remote places on Earth has depended on government attitudes toward regional development, transport and local production costs, economic accessibility of external markets, and the availability of local markets. The initial stages of space resource development may well depend on a government-funded lunar science/engineering base for initial markets. RP JONES, EM (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV EARTH & SPACE SCI,LOS ALAMOS,NM 87545, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0094-5765 J9 ACTA ASTRONAUT JI Acta Astronaut. PD JAN PY 1992 VL 26 IS 1 BP 15 EP 18 DI 10.1016/0094-5765(92)90138-9 PG 4 WC Engineering, Aerospace SC Engineering GA HM477 UT WOS:A1992HM47700004 ER PT J AU ROLLETT, AD LUTON, MJ SROLOVITZ, DJ AF ROLLETT, AD LUTON, MJ SROLOVITZ, DJ TI MICROSTRUCTURAL SIMULATION OF DYNAMIC RECRYSTALLIZATION SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID COMPUTER-SIMULATION; GRAIN-GROWTH; HOT-WORKING; KINETICS; COPPER; SIZE AB A Monte Carlo model for dynamic recrystallization has been developed from earlier models used to simulate static recrystallization and grain growth. The model simulates dynamic recrystallization by adding recrystallization nuclei and stored energy continuously with time. The simulations reproduce many of the essential features of dynamic recrystallization. The stored energy of the system, which may be interpreted as a measure of the flow stress, goes through a maximum and then decays, monotonically under some conditions and in an oscillatory manner under others. The principle parameters that were studied were the rate of adding stored energy, DELTA-H, and the rate of adding nuclei, DELTA-N. As DELTA-H increases, for fixed DELTA-N, the oscillations decay more rapidly and the asymptotic energy rises. As DELTA-N increases, again the oscillations decay more rapidly but the asymptotic stored energy decreases. The mean grain size of the system also oscillates in a similar manner to the stored energy but out of phase by 90-degrees. The flow stress oscillations occurred for conditions which lead to both coarsening and refinement of the initial grain size. Necklacing of the prior grain structure by new grains were observed for low DELTA-H and high DELTA-N; it is, however, not an invariable feature of grain refinement. The initial grain size has a profound influence on the microstructure that evolves during the first cycle of recrystallization but at long times, a mean grain size is established which depends on the values of DELTA-H and DELTA-N alone. Comparison of the relationships between the energy storage rate, maximum and asymptotic stored energy and the grain size suggest that in physical systems the energy storage rate and the nucleation rate are coupled. Comparison of the simulation results with experimental trends suggests that the dependence of nucleation rate on storage should be positive but weak. All of these results were obtained without the addition of special parameters to the model. C1 EXXON RES & ENGN CO, CORP RES, ANNANDALE, NJ 08801 USA. UNIV MICHIGAN, DEPT MAT SCI & ENGN, ANN ARBOR, MI 48109 USA. RP ROLLETT, AD (reprint author), UNIV CALIF LOS ALAMOS SCI LAB, MAIL STOP K765, LOS ALAMOS, NM 87545 USA. RI Rollett, Anthony/A-4096-2012 OI Rollett, Anthony/0000-0003-4445-2191 NR 27 TC 73 Z9 86 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD JAN PY 1992 VL 40 IS 1 BP 43 EP 55 DI 10.1016/0956-7151(92)90198-N PG 13 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA GV804 UT WOS:A1992GV80400004 ER PT J AU CHOUDHURY, A WHITE, CL BROOKS, CR AF CHOUDHURY, A WHITE, CL BROOKS, CR TI THE INTERGRANULAR SEGREGATION OF BORON IN NI3AL - EQUILIBRIUM SEGREGATION AND SEGREGATION KINETICS SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID GRAIN-BOUNDARY SEGREGATION; SURFACE; FRACTURE; DIFFUSION; ALLOYS; SULFUR AB The grain boundary B content of high-purity Ni-24 at.% Al alloys containing 0.048, 0.144, 0.240 and 0.480 at.% B (100, 300, 500, 1000 ppm mass) has been determined for samples aged from 1323 to 873 K for sufficient times to attain equilibrium. The B content was derived from Auger electron spectra of the intergranular fracture facets. Many facets were exposed during fracture at approximately 300 K, and additional facets were formed upon fracturing following hydrogen charging after heat treatment. For each alloy sample, about 25 facets were analyzed. The grain boundary B contents were in the range of 0.5-2.5 at.%. The grain boundary B content increased with decreasing temperature and with increasing bulk B content in the alloys. The energy of binding of a B atom to the grain boundary was calculated using McLean's segregation theory and assuming a unique binding energy for each alloy. The values were in the range of 0.15-0.45 eV/atom, and increased with increasing temperature and with decreasing bulk B content. These results have been rationalized in terms of a spectrum of binding energies for a given alloy. However, when the entropy of adsorption was taken into account, an enthalpy of adsorption of B to the grain boundary of 0.13 eV/atom was obtained, independent of temperature and bulk B content. This is interpreted to mean that the spectrum of binding energies is quite restricted. The grain boundary B content of these alloys has also been measured as a function of annealing time at 773, 873, 973 and 1173 K. The diffusion coefficient of B in Ni3Al at 773 K is about 5 x 10(-21) m2/s, and the equilibrium grain boundary B content is attained at about 3000 s. The diffusion coefficient at 973 K is between 10(-16) and 10(-17) m2/s. The activation energy for diffusion of B in Ni3Al is between 200,000 and 300,000 J/mol. C1 MICHIGAN TECHNOL UNIV, DEPT MET ENGN, HOUGHTON, MI 49931 USA. UNIV TENNESSEE, DEPT MAT SCI & ENGN, KNOXVILLE, TN 37996 USA. UNIV TENNESSEE, CTR MAT PROC, KNOXVILLE, TN 37996 USA. RP CHOUDHURY, A (reprint author), OAK RIDGE NATL LAB, DIV MET & CERAM, OAK RIDGE, TN 37831 USA. RI White, Calvin/F-7981-2011 OI White, Calvin/0000-0003-1299-4375 NR 41 TC 29 Z9 30 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PD JAN PY 1992 VL 40 IS 1 BP 57 EP 68 DI 10.1016/0956-7151(92)90199-O PG 12 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA GV804 UT WOS:A1992GV80400005 ER PT J AU LOEHMAN, RE TOMSIA, AP AF LOEHMAN, RE TOMSIA, AP TI REACTIONS OF TI AND ZR WITH ALN AND AL2O3 SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID METAL; ALUMINA; CERAMICS; ALLOY AB We studied the reactions of Ti and Zr with AlN, 99.8% Al2O3 and 95% Al2O3. The substrates were chosen to represent a simple nitride (AlN), a simple oxide (99.8% Al2O3), and a simple oxide with a silicate grain boundary phase (95% Al2O3). The activities of the Ti and the Zr were varied by dissolving them at 1 and 5 wt% in the 72 Ag-28 Cu eutectic composition, which is otherwise unreactive with the ceramics. Reactions were studied by measuring the variation of the alloy contact angle on the ceramic with time at temperature and by determining the compositions of interfacial reaction products. Contact angles were lower for Ti alloys than for those containing Zr. Reaction products were primarily the nitrides of Zr and Ti for reaction with AlN and the respective oxides for reaction with Al2O3. Complex alloy phases were found in the metal away from the ceramic-metal reaction zone, C1 PASK RES & ENGN, BERKELEY, CA 94564 USA. RP LOEHMAN, RE (reprint author), SANDIA NATL LABS, ALBUQUERQUE, NM 87185 USA. NR 23 TC 50 Z9 50 U1 3 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PY 1992 VL 40 SU S BP S75 EP S83 DI 10.1016/0956-7151(92)90266-H PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA JZ380 UT WOS:A1992JZ38000011 ER PT J AU MERKLE, KL BUCKETT, MI GAO, Y AF MERKLE, KL BUCKETT, MI GAO, Y TI ATOMIC-STRUCTURE OF HETEROPHASE INTERFACES SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID RESOLUTION ELECTRON-MICROSCOPY; GRAIN-BOUNDARIES AB High-resolution electron microscopy (HREM) has been used to study internal interfaces between dissimilar materials, notably ceramic metal interfaces. Structures observed for systems with small and large misfits are compared in metal-metal, metal-ceramic, and ceramic-ceramic boundaries. The interfaces were prepared by a variety of techniques, including internal reduction, internal oxidation, and epitaxial growth by MOCVD and special thin-film techniques. While interfaces produced by internal oxidation and reduction in f.c.c. systems typically form boundaries on (111) planes, non-equilibrium boundaries have also been generated using special thin film techniques. All boundaries can be characterized by their tendency to form coherent structures. While it appears that the amount of misfit and the bond strength primarily determine the degree of coherency, kinetic factors and substrate defects also seem to play an important role in determining the local defect structure at the boundary and the type of misfit localization. RP MERKLE, KL (reprint author), ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA. NR 27 TC 25 Z9 25 U1 1 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PY 1992 VL 40 SU S BP S249 EP S257 DI 10.1016/0956-7151(92)90283-K PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA JZ380 UT WOS:A1992JZ38000028 ER PT J AU PENNYCOOK, SJ JESSON, DE AF PENNYCOOK, SJ JESSON, DE TI ATOMIC RESOLUTION Z-CONTRAST IMAGING OF INTERFACES SO ACTA METALLURGICA ET MATERIALIA LA English DT Article ID TRANSMISSION ELECTRON-MICROSCOPY; FIELD STEM IMAGES; BLOCH WAVES; SUPERLATTICES; DIFFRACTION; SCATTERING; CRYSTALS; SILICON AB Z-contrast imaging of crystals at a major zone axis is accurately described as a convolution of the scanning probe intensity profile with an object function sharply peaked at each atomic column. The object function contains the high-angle scattering cross sections and all dynamical diffraction effects, which manifest simply as a channeling effect for each individual atomic column. The channeling effect can be described entirely using highly localized s-type Bloch states. A tight binding formulation shows clearly that neighboring columns can be considered independently, in which case no proximity effects occur at interfaces, and it is possible to assemble object functions for interfaces, superlattices or complex unit cells from appropriate isolated string strengths which may be calculated using simpler model unit cells. Channeling effects are always less sensitive to column composition than the high-angle cross sections. Therefore, dynamical corrections to an image are always second order, and a first order intuitive interpretation can be obtained directly from the image, with no a priori assumptions on likely interfacial arrangements. These ideas will be illustrated for superlattices of SimGen and (YBa2Cu3O7-x)m (PrBa2Cu3O7-x)n. RP PENNYCOOK, SJ (reprint author), OAK RIDGE NATL LAB, DIV SOLID STATE, OAK RIDGE, TN 37831 USA. NR 38 TC 85 Z9 85 U1 0 U2 12 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0956-7151 J9 ACTA METALL MATER JI Acta Metall. Mater. PY 1992 VL 40 SU S BP S149 EP S159 DI 10.1016/0956-7151(92)90275-J PG 11 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA JZ380 UT WOS:A1992JZ38000020 ER PT J AU Zhao, XS Nathanson, GM Lee, YT AF Zhao Xinsheng Nathanson, Gilbert M. Lee, Yuan T. TI MODELING SIMULATION OF SECONDARY PROCESSES IN PHOTOFRAGMENT-TRANSLATIONAL SPECTROSCOPY SO ACTA PHYSICO-CHIMICA SINICA LA English DT Article DE Data simulation; photodissociation; molecular beam; Secondary process AB We developed a method for analyzing time-of-flight spectra of Secondary products from sequential dissociation reactions following photon absorption by the parent molecule. This work complements the original discussion by Kroger and Riley, and shows that substantial information can be extracted even from highly aveyaged data. This information includes the average translational energy release and anisotropy of the secondary product recoil, as well as the relative yields of the secondary fragments for competing pathways. Model results are examined in order to illustrate the basic features of secondary dissociation. C1 [Zhao Xinsheng] Beijing Univ, Dept Chem, Beijing 100871, Peoples R China. [Nathanson, Gilbert M.] Univ Wisconsin, Dept Chem, Madison, WI 53706 USA. [Lee, Yuan T.] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat & Chem Sci, Berkeley, CA 94720 USA. [Lee, Yuan T.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. RP Zhao, XS (reprint author), Beijing Univ, Dept Chem, Beijing 100871, Peoples R China. RI Lee, Yuan-Tseh/F-7914-2012 FU US Naval Research [N00014-83-K-0069] FX The authors wish to thank E. J. Hintsa, Q. H. Zhu, T. K. Minton, and A. M. Wodtke for helpful discussions. GMN thanks the Miller Institute of the University of California for a fellowship. This work was supported by the office of US Naval Research under Contract No. N00014-83-K-0069. NR 14 TC 16 Z9 16 U1 3 U2 4 PU PEKING UNIV PRESS PI BEIJING PA PEKING UNIV, CHEMISTRY BUILDING, BEIJING 100871, PEOPLES R CHINA SN 1000-6818 J9 ACTA PHYS-CHIM SIN JI Acta Phys.-Chim. Sin. PY 1992 VL 8 IS 1 BP 70 EP 81 DI 10.3866/PKU.WHXB19920114 PG 12 WC Chemistry, Physical SC Chemistry GA V12BG UT WOS:000207574100014 ER PT J AU CESKA, TA HENDERSON, R BALDWIN, JM ZEMLIN, F BECKMANN, E DOWNING, K AF CESKA, TA HENDERSON, R BALDWIN, JM ZEMLIN, F BECKMANN, E DOWNING, K TI AN ATOMIC MODEL FOR THE STRUCTURE OF BACTERIORHODOPSIN, A 7-HELIX MEMBRANE-PROTEIN SO ACTA PHYSIOLOGICA SCANDINAVICA LA English DT Article; Proceedings Paper CT SATELLITE SYMP ON ION PUMPS, STRUCTURE AND MECHANISM, AT THE 15TH INTERNATIONAL CONGRESS OF BIOCHEMISTRY CY AUG 12-14, 1991 CL GOTHENBURG, SWEDEN DE BACTERIORHODOPSIN; ELECTRON CRYSTALLOGRAPHY; ATOMIC STRUCTURE; MECHANISM; 7-HELIX; MEMBRANE PROTEIN ID ELECTRON-DIFFRACTION PATTERNS; PURPLE MEMBRANE; NEUTRON-DIFFRACTION; CHROMOPHORE; RESOLUTION; LOCATION; CRYSTALS; MICROSCOPY; LIGHT AB A three-dimensional map of bacteriorhodopsin has been obtained, at near-atomic resolution, by collecting and analysing electron diffraction patterns and electron micrographs from crystals of bacteriorhodopsin preserved at very low temperatures. The map shows a resolution of 3.5-degrees-A in a direction parallel to the plane of the membrane, but poorer resolution perpendicular. It shows many features well resolved from the main density of the seven alpha-helices, which we interpret as the bulky sidechains of tyrosine, phenylalanine and tryptophan, as well as a very dense feature, which is the beta-ionone ring of the retinal chromophore. Using these bulky side chains as starting points and taking account of bulges of density for the smaller sidechains such as leucine, we built an atomic model for the residues between 8 and 225. There are 21 amino acids from all 7 helices surrounding the retinal and 26 amino acids contributed by 5 helices that form the proton channel. Ten of the amino acids in the middle of the proton channel are also part of the retinal-binding site. The model provides a useful basis for considering the mechanism of proton pumping and in the interpretation of other experimental data. In particular, the model suggests that the pK changes in the Schiff base must act as the means by which light energy is converted to proton pumping through the channel. Asp-96 is on the pathway from the cytoplasm to the Schiff base and asp-85 on the pathway from the Schiff base to the extracellular surface. The experimental map and the building of the model of the structure will be described, as well as our interpretation of the structural basis of the mechanism. C1 MRC,MOLEC BIOL LAB,CAMBRIDGE CB2 Q2H,ENGLAND. MAX PLANCK GESELL,FRITZ HABER INST,W-1000 BERLIN 33,GERMANY. LAWRENCE BERKELEY LAB,DIV CELL & MOLEC BIOL,BERKELEY,CA 94720. NR 28 TC 4 Z9 4 U1 1 U2 2 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0001-6772 J9 ACTA PHYSIOL SCAND JI Acta Physiol. Scand. PY 1992 VL 146 SU 607 BP 31 EP 40 PG 10 WC Physiology SC Physiology GA JT268 UT WOS:A1992JT26800005 ER PT J AU FRAZIER, ME HEINZEN, RA MALLAVIA, LP BACA, OG AF FRAZIER, ME HEINZEN, RA MALLAVIA, LP BACA, OG TI DNA PROBES FOR DETECTING COXIELLA-BURNETII STRAINS SO ACTA VIROLOGICA LA English DT Article DE COXIELLA-BURNETII; RICKETTSIAE; DETECTION; DNA PROBES; STRAINS; POLYMERASE CHAIN REACTION ID Q-FEVER; POLYMERASE AB Methods have been developed for the rapid detection of C. burnetii by specific hybridization of labelled DNA probes to rickettsial plasmid DNA sequences present in clinical samples. One DNA probe detects all C. burnetii strains, while additional probes differentiate, between organisms associated with chronic or acute disease. Using these probes, C. burnetii can be identified in blood, urine, and tissue samples. The plasmid-derived DNA probes detect as few as 10(4) organisms and less than 1 ng of Coxiella DNA. Host-cell DNA has no effect on the hybridization signal from C. burnetii DNA, and these probes do not cross-react with a variety of microorganisms, including both common laboratory contaminants and organisms that cause clinical symptoms similar to those of Q fever. The sensitivity of the assay is markedly enhanced when the procedure employs the polymerase chain reaction (PCR) to amplify C. burnetii DNA. This requires construction of oligonucleotide primers to DNA sequences flanking the target region of the DNA being amplified. For C. burnetii detection, several sets of primers have been prepared. One set is derived from the QpH1 H fragment, a region that is shared by all C. burnetii plasmids (homologous sequences are also present in the plasmidless strains of C. burnetii). The H primers detect all strains of C. burnetii. To differentiate between C. burnetii strains, additional primers, specific for DNA sequences that are unique either to chronic or acute disease-related strains of C. burnetii are employed. PCR amplifies target sequences up to 10(6)-fold. When DNA hybridization is used in conjunction with PCR, the test can detect less than 10 C. burnetii cells. In addition to providing a useful diagnostic method for detecting C. burnetii in clinical samples, this method is a powerful tool for studying the efficiency of antibiotic therapy, mechanisms of pathogenesis, and/or the nature of persistent infections. C1 WASHINGTON STATE UNIV, DEPT MICROBIOL, PULLMAN, WA 99164 USA. UNIV NEW MEXICO, DEPT BIOL, ALBUQUERQUE, NM 87131 USA. RP FRAZIER, ME (reprint author), PACIFIC NW LAB, RICHLAND, WA 99352 USA. FU NIAID NIH HHS [AI20190] NR 12 TC 6 Z9 8 U1 0 U2 1 PU SLOVAK ACADEMIC PRESS LTD PI BRATISLAVA PA PO BOX 57, NAM SLOBODY 6, 810 05 BRATISLAVA, SLOVAKIA SN 0001-723X J9 ACTA VIROL JI Acta Virol. PD JAN PY 1992 VL 36 IS 1 BP 83 EP 89 PG 7 WC Virology SC Virology GA HN641 UT WOS:A1992HN64100015 PM 1350179 ER PT J AU MARTENS, JS GINLEY, DS AF MARTENS, JS GINLEY, DS TI SUPERCONDUCTING ELECTRONICS IN THE TL-CA-BA-CU-O SYSTEM SO ADVANCED MATERIALS LA English DT Article ID THIN-FILMS AB Research News: The high-T(c) superconductor (HTS) Tl-Ca-Ba-Cu-O is an attractive material for applications because of its high transition temperature and structural properties. The basic structural features, methods of film growth, device processing sequences, and some device and microwave circuit applications are discussed, with special attention being paid to active devices based both on Josephson junctions and on controlled flux flow in the non-Josephson domain. RP MARTENS, JS (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 13 TC 2 Z9 2 U1 0 U2 0 PU VCH PUBLISHERS INC PI DEERFIELD BEACH PA 303 NW 12TH AVE, DEERFIELD BEACH, FL 33442-1788 SN 0935-9648 J9 ADV MATER JI Adv. Mater. PD JAN PY 1992 VL 4 IS 1 BP 55 EP 57 DI 10.1002/adma.19920040113 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 HB339 UT WOS:A1992HB33900012 ER PT S AU GRESHO, PM AF GRESHO, PM BE Hutchinson, JW Wu, TY TI SOME INTERESTING ISSUES IN INCOMPRESSIBLE FLUID-DYNAMICS, BOTH IN THE CONTINUUM AND IN NUMERICAL-SIMULATION SO ADVANCES IN APPLIED MECHANICS, VOL 28 SE Advances in Applied Mechanics LA English DT Review ID NAVIER-STOKES EQUATIONS; FINITE-ELEMENT METHOD; VORTICITY-VELOCITY FORMULATION; NONLINEAR DIFFERENTIAL-EQUATIONS; SEMIIMPLICIT PROJECTION METHODS; CONSISTENT MASS MATRIX; VISCOUS FLOWS; BOUNDARY-CONDITIONS; ALGEBRAIC CONSTRAINTS; EVOLUTION-EQUATIONS RP GRESHO, PM (reprint author), LAWRENCE LIVERMORE NATL LAB, DIV ATMOSPHER & GEOPHYS SCI, LIVERMORE, CA 94550 USA. NR 156 TC 36 Z9 36 U1 1 U2 8 PU ELSEVIER ACADEMIC PRESS INC PI SAN DIEGO PA 525 B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 USA SN 0065-2156 BN 0-12-002028-9 J9 ADV APPL MECH JI Adv. Appl. Mech. PY 1992 VL 28 BP 45 EP 140 PG 96 WC Engineering, Mechanical; Mechanics SC Engineering; Mechanics GA BZ96T UT WOS:A1992BZ96T00002 ER PT J AU LENGSFIELD, BH YARKONY, DR AF LENGSFIELD, BH YARKONY, DR TI NONADIABATIC INTERACTIONS BETWEEN POTENTIAL-ENERGY SURFACES - THEORY AND APPLICATIONS SO ADVANCES IN CHEMICAL PHYSICS LA English DT Review ID COUPLING MATRIX-ELEMENTS; BORN-OPPENHEIMER APPROXIMATION; DIFFERENTIAL CROSS-SECTIONS; CORRELATED WAVE-FUNCTIONS; ANALYTIC GRADIENT METHODS; 2ND DERIVATIVE TERMS; SPACE SCF METHOD; CONFIGURATION-INTERACTION; CHARGE-TRANSFER; CONICAL INTERSECTION C1 JOHNS HOPKINS UNIV, DEPT CHEM, BALTIMORE, MD 21218 USA. RP LAWRENCE LIVERMORE NATL LAB, THEORET ATOM & MOLEC PHYS GRP, LIVERMORE, CA 94550 USA. NR 146 TC 120 Z9 120 U1 2 U2 25 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0065-2385 J9 ADV CHEM PHYS JI Adv. Chem. Phys. PY 1992 VL 82 BP 1 EP 71 DI 10.1002/9780470141403.ch1 PN 2 PG 71 WC Physics, Atomic, Molecular & Chemical SC Physics GA JW469 UT WOS:A1992JW46900001 ER PT J AU BERGMAN, RG AF BERGMAN, RG TI ACTIVATION OF CARBON HYDROGEN-BONDS IN ALKANES AND OTHER ORGANIC-MOLECULES USING ORGANOTRANSITION METAL-COMPLEXES SO ADVANCES IN CHEMISTRY SERIES LA English DT Review ID C-H-BONDS; OXIDATIVE ADDITION; SATURATED-HYDROCARBONS; INSERTION; ALKYL; (ETA-5-C5ME5)(PME3)IR; FUNCTIONALIZATION; INTERMEDIATE; IRIDIUM; RHODIUM AB The scope, selectivity, and mechanism of reactions in which low-valent iridium and rhodium complexes undergo intermolecular C-H oxidative addition reactions were investigated. Progress was made on the development of stoichiometric methods for converting the metal complexes formed by C-H activation into functionalized organic molecules. In an effort to locate an inert solvent for the reaction, C-H activation reactions were carried out in liquefied noble gases such as liquid xenon and liquid krypton. This approach allowed us to directly examine the C-H activation reactivity of gaseous and solid substrates. It also provided a means for carrying out flash kinetic studies designed to generate transient coordinatively unsaturated metal complexes and directly measure the rates of their reactions with C-H bonds. C1 LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. RP BERGMAN, RG (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. NR 24 TC 1 Z9 1 U1 2 U2 7 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-2393 J9 ADV CHEM SER JI Adv. Chem. Ser. PY 1992 IS 230 BP 211 EP 220 PG 10 WC Chemistry, Multidisciplinary SC Chemistry GA JZ410 UT WOS:A1992JZ41000014 ER PT J AU KLINGLER, RJ KRAUSE, TR RATHKE, JW AF KLINGLER, RJ KRAUSE, TR RATHKE, JW TI HYDROGEN ACTIVATION BY SOLUBLE METAL-OXIDE COMPLEXES SO ADVANCES IN CHEMISTRY SERIES LA English DT Review ID WATER GAS SHIFT; PHASE AB To better define the chemistry associated with nucleophilic oxide centers, the catalysis of the water-gas shift reaction was investigated in triethylene glycol solution (150-250-degrees-C and 1-300 atm) by employing alkali metal hydroxide catalysts. Under reaction conditions most of the sodium salt is in the form of the formate complex, which is produced through the carbonylation of hydroxide ion. The resultant water-gas shift reaction is first order in sodium formate over a concentration range from 0.01 to 1.0 M. Both formic and acetic acids have a beneficial effect on the rate of dihydrogen evolution within the sodium hydroxide-formate water-gas shift system. Deuterium, D2, is produced in 93% isotopic purity when the reaction is conducted in D2O-triethylene glycol-d2. it exhibits a substantial inverse kinetic isotope effect (k(H)/k(D) = 0.5) compared to the analogous water-gas shift reaction conducted in H2O-triethylene glycol. The kinetic results indicate that the sodium hydroxide-formate water-gas shift system proceeds through an intermediate (or transition state) with substantial H-H bond order. This activity contrasts with earlier proposals for nucleophilic dihydrogen activation, which focused on a free hydride ion intermediate. RP KLINGLER, RJ (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,ARGONNE,IL 60439, USA. NR 25 TC 1 Z9 1 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0065-2393 J9 ADV CHEM SER JI Adv. Chem. Ser. PY 1992 IS 230 BP 337 EP 348 PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA JZ410 UT WOS:A1992JZ41000023 ER PT J AU AMES, GF MIMURA, CS HOLBROOK, SR SHYAMALA, V AF AMES, GF MIMURA, CS HOLBROOK, SR SHYAMALA, V TI TRAFFIC ATPASES - A SUPERFAMILY OF TRANSPORT PROTEINS OPERATING FROM ESCHERICHIA-COLI TO HUMANS SO ADVANCES IN ENZYMOLOGY AND RELATED AREAS OF MOLECULAR BIOLOGY LA English DT Review ID PERIPLASMIC-BINDING-PROTEIN; POSITIVELY CHARGED RESIDUES; MULTIDRUG RESISTANCE GENE; CALCIUM-CHANNEL BLOCKERS; AMINO-ACID-RESIDUES; SALMONELLA-TYPHIMURIUM; MEMBRANE-COMPONENTS; NUCLEOTIDE-BINDING; BACTERIAL TRANSPORT; CYSTIC-FIBROSIS C1 CHIRON CORP, EMERYVILLE, CA USA. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV CHEM BIODYNAM, BERKELEY, CA 94720 USA. RP AMES, GF (reprint author), UNIV CALIF BERKELEY, DEPT MOLEC & CELL BIOL, DIV BIOCHEM & MOLEC BIOL, BERKELEY, CA 94720 USA. NR 84 TC 4 Z9 4 U1 0 U2 2 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 0065-258X J9 ADV ENZYMOL RAMB JI Adv. Enzymol. Relat. Areas Mol. Biol. PY 1992 VL 65 BP 1 EP 47 PG 47 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA HU552 UT WOS:A1992HU55200001 ER PT J AU KEPLER, RG ANDERSON, RA AF KEPLER, RG ANDERSON, RA TI FERROELECTRIC POLYMERS SO ADVANCES IN PHYSICS LA English DT Review ID FLUORIDE-TRIFLUOROETHYLENE COPOLYMERS; LIQUID-CRYSTALLINE POLYMERS; STRETCHED POLY(VINYLIDENE FLUORIDE); X-RAY-DIFFRACTION; 52/48 MOL-PERCENT; VINYLIDENE-FLUORIDE; POLYVINYLIDENE FLUORIDE; CO-POLYMER; PHASE-TRANSITION; ELECTRIC-FIELD AB In the early 1970s it became clear that the polymer polyvinylidene fluoride is ferroelectric. There have been extensive studies of its properties and of the properties of copolymers of vinylidene fluoride with tri- or tetra-fluoroethylene. This work has led to a fairly complete understanding of the ferroelectric and related properties of these materials. The emphasis in this review is on the studies of these materials that are oriented toward showing that the polymers are indeed ferroelectric, determining the mechanism of polarization reversal, and understanding the origins of the observed piezoelectric and pyroelectric effects. Very recently some odd nylons (nylons with an odd number of carbon atoms in the monomer unit) were recognized to be ferroelectric, and ferroelectric liquid-crystalline polymers have been prepared by attaching ferroelectric liquid-crystal molecules as side chains to polymer backbones. These new findings are included in the review. RP KEPLER, RG (reprint author), SANDIA NATL LABS,ORG 1800,POB 5800,ALBUQUERQUE,NM 87185, USA. NR 203 TC 173 Z9 175 U1 9 U2 74 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0001-8732 J9 ADV PHYS JI Adv. Phys. PD JAN-FEB PY 1992 VL 41 IS 1 BP 1 EP 57 DI 10.1080/00018739200101463 PG 57 WC Physics, Condensed Matter SC Physics GA HK832 UT WOS:A1992HK83200001 ER PT J AU LOUCK, JD BIEDENHARN, LC AF LOUCK, JD BIEDENHARN, LC TI CANONICAL AND NONCANONICAL METHODS IN APPLICATIONS OF GROUP-THEORY TO PHYSICAL PROBLEMS SO ADVANCES IN QUANTUM CHEMISTRY LA English DT Review ID SU(3) TENSOR-OPERATORS; STATE LABELING PROBLEM; ROTATION-VIBRATION SPECTRA; LITTLEWOOD BRANCHING RULE; SUPERSET-OF SO(N); ORTHONORMAL BASIS; UNITARY GROUPS; STRUCTURAL-PROPERTIES; INVARIANT-THEORY; U(3) C1 DUKE UNIV,DEPT PHYS,DURHAM,NC 27706. RP LOUCK, JD (reprint author), LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. NR 57 TC 11 Z9 11 U1 1 U2 2 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0065-3276 J9 ADV QUANTUM CHEM JI Adv. Quantum Chem. PY 1992 VL 23 BP 127 EP 204 DI 10.1016/S0065-3276(08)60030-1 PG 78 WC Chemistry, Physical SC Chemistry GA MG045 UT WOS:A1992MG04500003 ER PT J AU CURTIS, SB THOMAS, DC AF CURTIS, SB THOMAS, DC TI DOSE TIME RESPONSE MODELS FOR RADIATION CARCINOGENESIS SO ADVANCES IN RADIATION BIOLOGY LA English DT Review ID FISSION-SPECTRUM NEUTRONS; ATOMIC-BOMB SURVIVORS; BREAST-CANCER; NEOPLASTIC TRANSFORMATION; FLUOROSCOPIC EXAMINATIONS; ONCOGENIC TRANSFORMATION; ALPHA-RADIATION; LUNG-CANCER; X-RAY; MORTALITY C1 UNIV SO CALIF,DEPT PREVENT MED,LOS ANGELES,CA 90089. RP CURTIS, SB (reprint author), LAWRENCE BERKELEY LAB,DIV CELL & MOLEC BIOL,BERKELEY,CA 94720, USA. NR 48 TC 5 Z9 5 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0065-3292 J9 ADV RADIAT BIOL JI Adv. Radiat. Biol. PY 1992 VL 16 BP 45 EP 76 PG 32 WC Biology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Radiology, Nuclear Medicine & Medical Imaging GA MD555 UT WOS:A1992MD55500003 ER PT J AU PRESTON, RJ AF PRESTON, RJ TI COMMENTARY TO THACKER - A CONSIDERATION OF THE MECHANISMS OF INDUCTION OF MUTATIONS IN MAMMALIAN-CELLS BY LOW-DOSES AND DOSE-RATES OF IONIZING-RADIATION SO ADVANCES IN RADIATION BIOLOGY LA English DT Review ID INDUCED CHROMOSOME-ABERRATIONS; ATAXIA TELANGIECTASIA CELLS; STRAND-BREAK REPAIR; X-RAYS; RESTRICTION ENDONUCLEASES; CYTOSINE-ARABINOSIDE; DNA-SYNTHESIS; IRRADIATION; SENSITIVITY; MUTANTS RP PRESTON, RJ (reprint author), OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831, USA. NR 28 TC 6 Z9 6 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0065-3292 J9 ADV RADIAT BIOL JI Adv. Radiat. Biol. PY 1992 VL 16 BP 125 EP 135 PG 11 WC Biology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Radiology, Nuclear Medicine & Medical Imaging GA MD555 UT WOS:A1992MD55500005 ER PT J AU TERZAGHIHOWE, M AF TERZAGHIHOWE, M TI COMMENTARY 1 TO COX AND LITTLE - THE UNBRIDGED GAP BETWEEN IN-VIVO AND IN-VITRO MODELS FOR EVALUATION OF LOW-DOSE, LOW-DOSE RATE RADIATION-INDUCED ONCOGENIC TRANSFORMATION SO ADVANCES IN RADIATION BIOLOGY LA English DT Review RP TERZAGHIHOWE, M (reprint author), OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0065-3292 J9 ADV RADIAT BIOL JI Adv. Radiat. Biol. PY 1992 VL 16 BP 159 EP 165 PG 7 WC Biology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Radiology, Nuclear Medicine & Medical Imaging GA MD555 UT WOS:A1992MD55500007 ER PT J AU FRY, RJM AF FRY, RJM TI THE ROLE OF ANIMAL-EXPERIMENTS IN ESTIMATES OF RADIATION RISK SO ADVANCES IN RADIATION BIOLOGY LA English DT Review ID CANCER; MOUSE; NEOPLASMS; LEUKEMIA; RAYS; MICE RP FRY, RJM (reprint author), OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831, USA. NR 38 TC 0 Z9 0 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0065-3292 J9 ADV RADIAT BIOL JI Adv. Radiat. Biol. PY 1992 VL 16 BP 181 EP 197 PG 17 WC Biology; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Radiology, Nuclear Medicine & Medical Imaging GA MD555 UT WOS:A1992MD55500009 ER PT J AU NIR, A DOUGHTY, C TSANG, CF AF NIR, A DOUGHTY, C TSANG, CF TI VALIDATION OF DESIGN PROCEDURE AND PERFORMANCE MODELING OF A HEAT AND FLUID TRANSPORT FIELD EXPERIMENT IN THE UNSATURATED ZONE SO ADVANCES IN WATER RESOURCES LA English DT Article DE SEASONAL HEAT STORAGE; UNSATURATED ZONE; VALIDATION; ENVIRONMENT AB Validation methods which developed in the context of deterministic concepts of past generations often cannot be directly applied to environmental problems, which may be characterized by limited reproducibility of results and highly complex models. Instead, validation is interpreted here as a series of activities, including both theoretical and experimental tests, designed to enhance our confidence in the capability of a proposed model to describe some aspect of reality. We examine the validation process applied to a project concerned with heat and fluid transport in porous media, in which mathematical modeling, simulation, and results of field experiments are evaluated in order to determine the feasibility of a system for seasonal thermal energy storage in shallow unsaturated soils. Technical details of the field experiments are not included, but appear in previous publications. Validation activities are divided into three stages. The first stage, carried out prior to the field experiments, is concerned with modeling the relevant physical processes. optimization of the heat-exchanger configuration and the shape of the storage volume. and multi-year simulation. Subjects requiring further theoretical and experimental study are identified at this stage. The second stage encompasses the planning and evaluation of the initial field experiment. Simulations are made to determine the experimental time scale and optimal sensor locations. Soil thermal parameters and temperature boundary conditions are estimated using an inverse method. Then results of the experiment are compared with model predictions using different parameter values and modeling approximations. In the third stage, results of an experiment performed under different boundary conditions are compared to predictions made by the models developed in the second stage. Various aspects of this theoretical and experimental field study are described as examples of the verification and validation procedure. There is no attempt to validate a specific model, but several models of increasing complexity are compared with experimental results. The outcome is interpreted as a demonstration of the paradigm proposed by van der Heijde,26 that different constituencies have different objectives for the validation process and therefore their acceptance criteria differ also. RP NIR, A (reprint author), LAWRENCE BERKELEY LAB,DIV EARTH SCI,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. RI Doughty, Christine/G-2389-2015 NR 0 TC 5 Z9 5 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0309-1708 J9 ADV WATER RESOUR JI Adv. Water Resour. PY 1992 VL 15 IS 3 BP 153 EP 166 DI 10.1016/0309-1708(92)90020-3 PG 14 WC Water Resources SC Water Resources GA JK976 UT WOS:A1992JK97600001 ER PT J AU DAVIS, PA OLAGUE, NE GOODRICH, MT AF DAVIS, PA OLAGUE, NE GOODRICH, MT TI APPLICATION OF A VALIDATION STRATEGY TO DARCY EXPERIMENT SO ADVANCES IN WATER RESOURCES LA English DT Article DE VALIDATION; DARCY LAW; GROUNDWATER; INTRAVAL VALIDATION STRATEGY; MODEL ADEQUACY AB A strategy recently developed for use in an international study of ground-water flow and transport model validation is applied to Darcy's original experiment. The results of applying the validation strategy indicate that Darcy's law was not validated by Darcy's experiment. However, when the strategy is applied to a similar experiment conducted by Stearns using much smaller hydraulic gradients than Darcy, Darcy's law is found to be "not invalid". In addition, the authors propose that the adequacy of a model for a given purpose, at a given site, may be more important than model validity for making model-based decisions. RP DAVIS, PA (reprint author), SANDIA NATL LABS,DIV WASTE MANAGEMENT SYST,ALBUQUERQUE,NM 87185, USA. NR 0 TC 10 Z9 10 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0309-1708 J9 ADV WATER RESOUR JI Adv. Water Resour. PY 1992 VL 15 IS 3 BP 175 EP 180 DI 10.1016/0309-1708(92)90022-T PG 6 WC Water Resources SC Water Resources GA JK976 UT WOS:A1992JK97600003 ER PT S AU CAMPISI, J AF CAMPISI, J BE Franceschi, C Crepaldi, G Cristofalo, VJ Vijg, J TI GENE-EXPRESSION IN QUIESCENT AND SENESCENT FIBROBLASTS SO AGING AND CELLULAR DEFENSE MECHANISMS SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Proceedings Paper CT CONF ON AGING AND CELLULAR DEFENSE MECHANISMS CY SEP 22-26, 1991 CL MODENA, ITALY SP NEW YORK ACAD SCI, NIA, SIGMA TAU, EURAGE RP CAMPISI, J (reprint author), LAWRENCE BERKELEY LAB,DIV CELL & MOLEC BIOL,BERKELEY,CA 94720, USA. NR 0 TC 25 Z9 25 U1 0 U2 0 PU NEW YORK ACAD SCIENCES PI NEW YORK PA NEW YORK SN 0077-8923 BN 0-89766-729-8 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1992 VL 663 BP 195 EP 201 DI 10.1111/j.1749-6632.1992.tb38663.x PG 7 WC Geriatrics & Gerontology; Immunology; Physiology SC Geriatrics & Gerontology; Immunology; Physiology GA BX33J UT WOS:A1992BX33J00022 PM 1482053 ER PT J AU CONCUS, P FINN, R WEISLOGEL, M AF CONCUS, P FINN, R WEISLOGEL, M TI DROP-TOWER EXPERIMENTS FOR CAPILLARY SURFACES IN AN EXOTIC CONTAINER SO AIAA JOURNAL LA English DT Article AB Low-gravity drop-tower experiments were carried out for an "exotic" rotationally symmetric container, which admits an entire continuum of distinct equilibrium symmetric capillary free surfaces. It was found that an initial equilibrium planar interface, a member of the continuum, can reorient toward a nonsymmetric interface, as predicted by recent mathematical theory. C1 UNIV CALIF BERKELEY,DEPT MATH,BERKELEY,CA 94720. STANFORD UNIV,DEPT MATH,STANFORD,CA 94305. NASA,LEWIS RES CTR,DIV SPACE EXPT,CLEVELAND,OH 44135. RP CONCUS, P (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 8 TC 5 Z9 5 U1 0 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD JAN PY 1992 VL 30 IS 1 BP 134 EP 137 DI 10.2514/3.10892 PG 4 WC Engineering, Aerospace SC Engineering GA GZ915 UT WOS:A1992GZ91500018 ER PT J AU YOUNG, DA BETTINGER, RL AF YOUNG, DA BETTINGER, RL TI THE NUMIC SPREAD - A COMPUTER-SIMULATION SO AMERICAN ANTIQUITY LA English DT Article ID GREAT-BASIN; BRITAIN; MODEL AB We develop a mathematical model for the spread of Numic-speaking peoples across the Great Basin in the second millennium A.D., in accord with the ideas of Bettinger and Baumhoff (1982), who suggested a competitive interaction between the Numic and Prenumic peoples of the region. We construct differential equations representing two competing populations that spread by a diffusion process across an area representing the Great Basin. The demographic variables are fixed to agree with ethnographic data, while the migration rates are fitted to the estimated time for the completion of the spread. The model predicts a spatial distribution of the Numic languages in satisfactory agreement with observations and suggests new avenues of investigation. C1 UNIV CALIF DAVIS,DEPT ANTHROPOL,DAVIS,CA 95616. RP YOUNG, DA (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 43 TC 23 Z9 23 U1 0 U2 0 PU SOC AMER ARCHAEOLOGY PI WASHINGTON PA 900 SECOND ST., NE WASHINGTON, DC 20002-3557 SN 0002-7316 J9 AM ANTIQUITY JI Am. Antiq. PD JAN PY 1992 VL 57 IS 1 BP 85 EP 99 DI 10.2307/2694836 PG 15 WC Anthropology; Archaeology SC Anthropology; Archaeology GA GZ458 UT WOS:A1992GZ45800005 ER PT J AU MATTHEWS, RB AF MATTHEWS, RB TI CERAMIC FUEL DEVELOPMENT FOR SPACE REACTORS SO AMERICAN CERAMIC SOCIETY BULLETIN LA English DT Article ID URANIUM NITRIDE FUEL RP MATTHEWS, RB (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,DIV NUCL MAT TECHNOL,LOS ALAMOS,NM 87545, USA. NR 21 TC 1 Z9 1 U1 0 U2 0 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 SN 0002-7812 J9 AM CERAM SOC BULL JI Am. Ceram. Soc. Bull. PD JAN PY 1992 VL 71 IS 1 BP 96 EP 101 PG 6 WC Materials Science, Ceramics SC Materials Science GA GZ557 UT WOS:A1992GZ55700008 ER PT J AU KOSSOVSKY, N MILLETT, DE WROBLESKI, DA AF KOSSOVSKY, N MILLETT, DE WROBLESKI, DA TI FOURIER-TRANSFORM INFRARED SPECTROSCOPIC ANALYSIS OF ORGANIC OIL MASTITIS SO AMERICAN JOURNAL OF CLINICAL PATHOLOGY LA English DT Article DE SILICONE FLUID; ORGANIC OILS; MASTITIS; FOURIER TRANSFORM INFRARED SPECTROSCOPY; FOREIGN-BODY REACTION ID HUMAN ADJUVANT DISEASE; SILICONE FLUID; AUGMENTATION; BREAST AB The prevalent use of "medical grade" silicone oils, gels, and elastomers in medical practice has largely obscured the fact that other (illicit) materials also are still in use. Injection fluids used for tissue augmentations are sometimes composed of adulterated silicone oil formulations containing a variety of organic oils. The differential diagnosis between silicone mastitis and other organic oil mastitis in biopsy and mastectomy specimens cannot be resolved by oral history and histopathologic examination alone. In two of three specimens clinically and histopathologically diagnosed initially as silicone mastitis at the authors' institution, examination by Fourier transform infrared spectroscopy revealed that the principal organic oils were mineral oil and soy or olive oil. Only one specimen of mastitis contained silicone oil. In view of the significant prognostic as well as medicolegal implications of the pathologic diagnosis, the generic term "organic oil mastitis" should be used in the absence of additional objective data. C1 UNIV CALIF LOS ALAMOS SCI LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87544. RP KOSSOVSKY, N (reprint author), UNIV CALIF LOS ANGELES,MED CTR,DEPT PATHOL & LAB MED,BIOMAT BIOREACT CHARACTERIZAT LAB,LOS ANGELES,CA 90024, USA. NR 18 TC 7 Z9 7 U1 0 U2 0 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0002-9173 J9 AM J CLIN PATHOL JI Am. J. Clin. Pathol. PD JAN PY 1992 VL 97 IS 1 BP 34 EP 39 PG 6 WC Pathology SC Pathology GA GZ463 UT WOS:A1992GZ46300007 PM 1728862 ER PT J AU HARRISON, HH MILLER, KL DICKINSON, C DAUFELDT, JA AF HARRISON, HH MILLER, KL DICKINSON, C DAUFELDT, JA TI QUALITY ASSURANCE AND REPRODUCIBILITY OF HIGH-RESOLUTION 2-DIMENSIONAL ELECTROPHORESIS AND SILVER STAINING IN POLYACRYLAMIDE GELS SO AMERICAN JOURNAL OF CLINICAL PATHOLOGY LA English DT Article DE 2-DIMENSIONAL ELECTROPHORESIS; ISO-DALT; SILVER-STAINING; QUALITY CONTROL; QUALITY ASSURANCE; RPSP; SERUM PROTEIN ELECTROPHORESIS ID TWO-DIMENSIONAL ELECTROPHORESIS; PROTEIN POLYMORPHISMS; QUANTITATIVE-ANALYSIS; SERUM; PHENOTYPE AB Qualitative data from high-resolution two-dimensional electrophoresis (2DE) have become clinically useful in immunoglobulin clonality analysis, in resolution of ambiguities in immunofixation typing of paraproteins, and in genetic typing of serum proteins. Since 1986, the authors have been evaluating the College of American Pathologists Reference Preparation for Serum Proteins (RPSP) as a quality control material for 2DE because (1) it is prepared exclusively from pooled human sera, (2) the pool yields a reference pattern of mixed heterozygosity for genetic markers, and (3) RPSP is widely available as a lyophilized preparation that currently serves in the authors' laboratory as a qualitative quality control preparation and that may become a quantitative quality control material or external quality assessment material for 2DE. Using the ISO-DALT 2DE system and silver-staining, the peptide patterns were examined in 11 lots of RPSP and compared with fresh serum and with each other. Consistent differences in the 2DE pattern between RPSP and fresh serum included the presence of freeze-thaw peptides, the presence of degradation spots of apolipoprotein A-I, and the diminution of apolipoprotein spot intensities in RPSP. All lots of RPSP yielded clear identification of the eight serum proteins used for quality control calculations. Run-to-run coefficients of variation for a single lot of RPSP for four parameters of 2DE spot location and gradient reproducibility were comparable with band location reproducibility for the one-dimensional procedures of serum protein electrophoresis and lactate dehydrogenase isoenzyme electrophoresis. It is concluded that the reproducibility, that is, imprecision, of 2DE is the same as one-dimensional clinical electrophoresis techniques and that either RPSP or pooled fresh serum can serve as a satisfactory internal quality control material. C1 ABBOTT LABS,N CHICAGO,IL 60064. UNIV CHICAGO,PRITZKER SCH MED,DEPT ANTHROPOL,CHICAGO,IL 60637. ARGONNE NATL LAB,DIV BIOL & MED RES,MOLEC ANAT PROGRAM,ARGONNE,IL 60439. RP HARRISON, HH (reprint author), UNIV CHICAGO,PRITZKER SCH MED,DEPT PATHOL,BOX 146,5841 S MARYLAND AVE,CHICAGO,IL 60637, USA. NR 30 TC 11 Z9 11 U1 0 U2 1 PU LIPPINCOTT-RAVEN PUBL PI PHILADELPHIA PA 227 EAST WASHINGTON SQ, PHILADELPHIA, PA 19106 SN 0002-9173 J9 AM J CLIN PATHOL JI Am. J. Clin. Pathol. PD JAN PY 1992 VL 97 IS 1 BP 97 EP 105 PG 9 WC Pathology SC Pathology GA GZ463 UT WOS:A1992GZ46300016 PM 1728871 ER PT J AU WELLER, RE BAER, JF MALAGA, CA BUSCHBOM, RL RAGAN, HA AF WELLER, RE BAER, JF MALAGA, CA BUSCHBOM, RL RAGAN, HA TI RENAL CLEARANCE AND EXCRETION OF ENDOGENOUS SUBSTANCES IN THE OWL MONKEY SO AMERICAN JOURNAL OF PRIMATOLOGY LA English DT Article DE CREATININE CLEARANCE; ELECTROLYTES; KIDNEY; NIGHT MONKEY ID GLOMERULAR-FILTRATION RATE; QUANTITATIVE URINALYSIS; AOTUS-TRIVIRGATUS; CREATININE; PHOSPHATE; PRIMATE; CATS AB The clearance and excretion of creatinine, calcium, phosphorus, sodium, and potassium by the kidney was evaluated in 62 owl monkeys using timed urine collections and quantitative urinalyses. The endogenous clearance of creatinine was determined for each monkey. Urinary electrolyte excretion and fractional electrolyte excretions (FE) were measured. Linear regression analysis was used to calculate the correlation between urinary excretion and FE for each electrolyte. The coefficient of determination for each analyte was significant (P less-than-or-equal-to 0.0001). Determination of FE was found to be an appropriate indicator of the renal handling of electrolytes and, when viewed in conjunction with urinalysis and other serum parameters, an aid in evaluating renal function in the owl monkey. RP WELLER, RE (reprint author), PACIFIC NW LAB, P7-52,POB 999,BATTELLE BLVD, RICHLAND, WA 99352 USA. NR 39 TC 8 Z9 8 U1 0 U2 2 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0275-2565 J9 AM J PRIMATOL JI Am. J. Primatol. PY 1992 VL 28 IS 2 BP 115 EP 123 DI 10.1002/ajp.1350280204 PG 9 WC Zoology SC Zoology GA JN786 UT WOS:A1992JN78600003 ER PT J AU JOHNSON, GK TASKER, IR FLOTOW, HE OHARE, PAG WISE, WS AF JOHNSON, GK TASKER, IR FLOTOW, HE OHARE, PAG WISE, WS TI THERMODYNAMIC STUDIES OF MORDENITE, DEHYDRATED MORDENITE, AND GIBBSITE SO AMERICAN MINERALOGIST LA English DT Article ID TEMPERATURE HEAT-CAPACITIES; ENTHALPIES; ZEOLITES; ENTROPIES AB Calorimetric measurements have been carried out on a natural sample of mordenite from Goble, Oregon, having the composition Ca0.289Na0.361Al0.940Si5.060O12.3.468H2O and also on this same material in the dehydrated form. Low-temperature adiabatic calorimetry, high-temperature drop calorimetry, and solution-reaction calorimetry have been used to derive the thermodynamic properties of mordenite from T --> 0 to 500 K and of dehydrated mordenite from T --> 0 to 900 K. The following values have been obtained at T = 298.15 K and P0 = 0.1013 MPa: [GRAPHICS] The average binding energy and entropy of zeolitic H2O in mordenite are 29.7 +/- 1.8 kJ/mol and 54.05 +/- 0.33 J/(mol.K), respectively. The enthalpy of formation of gibbsite, Al(OH)3, which is an important auxiliary value used to derive the enthalpies of formation of aluminosilicates, was determined to be -1294.9 +/- 1.2 kJ/mol. Revised enthalpy of formation and Gibbs energy of formation values are tabulated for analcime, dehydrated analcime, natrolite, scolecite, mesolite, and heulandite. C1 UNIV CALIF SANTA BARBARA,SANTA BARBARA,CA 93106. RP JOHNSON, GK (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 25 TC 49 Z9 49 U1 3 U2 5 PU MINERALOGICAL SOC AMER PI WASHINGTON PA 1130 17TH ST NW SUITE 330, WASHINGTON, DC 20036 SN 0003-004X J9 AM MINERAL JI Am. Miner. PD JAN-FEB PY 1992 VL 77 IS 1-2 BP 85 EP 93 PG 9 WC Geochemistry & Geophysics; Mineralogy SC Geochemistry & Geophysics; Mineralogy GA HE616 UT WOS:A1992HE61600010 ER PT J AU STERNER, SM AF STERNER, SM TI SYNTHETIC FLUID INCLUSIONS .11. NOTES ON THE APPLICATION OF SYNTHETIC FLUID INCLUSIONS TO HIGH P-T EXPERIMENTAL AQUEOUS GEOCHEMISTRY SO AMERICAN MINERALOGIST LA English DT Article ID NATURAL QUARTZ; SYSTEM; PRESSURE; EQUILIBRIUM; TEMPERATURE; BEHAVIOR; CRYSTALS; NACL-H2O; GASES; STATE AB A new modification to the procedure for trapping synthetic fluid inclusions effectively allows the experimenter to control the timing of the onset of inclusion formation. The main advantage of the new procedure is that inclusion trapping may be postponed until the experimental pressure and temperature are stabilized and the fluid has equilibrated at P and T to a constant and uniform composition and density throughout the capsule. Thus, PVTX studies may be extended to higher temperatures in cases where premature fracture healing previously resulted in volumetric and compositional heterogeneity among inclusions from a single sample. The new method has been found to improve significantly the precision of volumetric determinations in the CO2-H2O system at temperatures above 600-degrees-C. Additionally, the technique shows promise in the investigation of high-salinity brines and for mixed-gas aqueous systems where fluid compositions may evolve through time. The ability to sample the fluid phase at P and T after equilibration at P and T may prove invaluable in speciation studies at high pressures and temperatures involving kinetically slow buffers or diffusional processes and in the experimental study of H2O-rock interactions. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 51 TC 16 Z9 17 U1 2 U2 3 PU MINERALOGICAL SOC AMER PI WASHINGTON PA 1130 17TH ST NW SUITE 330, WASHINGTON, DC 20036 SN 0003-004X J9 AM MINERAL JI Am. Miner. PD JAN-FEB PY 1992 VL 77 IS 1-2 BP 156 EP 167 PG 12 WC Geochemistry & Geophysics; Mineralogy SC Geochemistry & Geophysics; Mineralogy GA HE616 UT WOS:A1992HE61600018 ER PT J AU SPOTILA, JR OCONNOR, MP AF SPOTILA, JR OCONNOR, MP TI INTRODUCTION TO THE WORKSHOP - BIOPHYSICAL ECOLOGY - METHODS, MICROCLIMATES, AND MODELS SO AMERICAN ZOOLOGIST LA English DT Editorial Material ID GALAPAGOS LAND IGUANAS; TEMPERATURE C1 SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. RP SPOTILA, JR (reprint author), DREXEL UNIV,DEPT BIOSCI & BIOTECHNOL,PHILADELPHIA,PA 19104, USA. NR 18 TC 2 Z9 2 U1 0 U2 0 PU AMER SOC ZOOLOGISTS PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0003-1569 J9 AM ZOOL JI Am. Zool. PY 1992 VL 32 IS 2 BP 151 EP 153 PG 3 WC Zoology SC Zoology GA KR813 UT WOS:A1992KR81300001 ER PT J AU OCONNOR, MP SPOTILA, JR AF OCONNOR, MP SPOTILA, JR TI CONSIDER A SPHERICAL LIZARD - ANIMALS, MODELS, AND APPROXIMATIONS SO AMERICAN ZOOLOGIST LA English DT Article ID GALAPAGOS LAND IGUANAS; BODY-TEMPERATURE; HEAT-EXCHANGE; WATER-LOSS; ENVIRONMENTAL TEMPERATURES; TERRESTRIAL ECTOTHERMS; OPERATIVE-TEMPERATURE; LUNGLESS SALAMANDERS; AIR-TEMPERATURE; BLOOD-FLOW AB Ecologists and physiologists have used biophysical models to answer questions and investigate hypotheses about animal biology for over 20 years, but many investigators do not use such techniques because such modelling is perceived as an arcane art. Indeed, there is no magic strategy to allow all ecologists to model any biophysical problem accurately by means of simple recipes. In practice, biophysical ecology depends heavily on mathematical and engineering principles. But, it need not be impenetrable. Here we discuss relatively simple models that can be incorporated into many ecological studies. We also discuss some of the important approximations and assumptions inherent in our treatments of radiative, convective, evaporative, and conductive heat transfer. In so doing, we hope to encourage the use of such models, and to engender an appreciation of when and under what conditions predictions from such models are most likely to be misleading. Thus, we hope to help ecologists to get into and, hopefully, out of trouble in biophysical ecology. C1 SAVANNAH RIVER ECOL LAB,AIKEN,SC 29801. RP OCONNOR, MP (reprint author), DREXEL UNIV,DEPT BIOSCI & BIOTECHNOL,PHILADELPHIA,PA 19104, USA. NR 98 TC 28 Z9 28 U1 2 U2 8 PU AMER SOC ZOOLOGISTS PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0003-1569 J9 AM ZOOL JI Am. Zool. PY 1992 VL 32 IS 2 BP 179 EP 193 PG 15 WC Zoology SC Zoology GA KR813 UT WOS:A1992KR81300003 ER PT J AU SKINNER, DM KUMARI, SS OBRIEN, JJ AF SKINNER, DM KUMARI, SS OBRIEN, JJ TI PROTEINS OF THE CRUSTACEAN EXOSKELETON SO AMERICAN ZOOLOGIST LA English DT Article; Proceedings Paper CT SYMP ON THE COMPLEAT CRAB, AT THE 1990 ANNUAL MEETING OF THE AMERICAN SOC OF ZOOLOGISTS CY DEC 27-30, 1990 CL SAN ANTONIO, TX SP AMER SOC ZOOLOGISTS ID DIFFERENT ANATOMICAL REGIONS; CRAB GECARCINUS-LATERALIS; CUTICULAR PROTEINS; HYALOPHORA-CECROPIA; MOLT-CYCLE; LAND CRAB; ASTACUS-LEPTODACTYLUS; METAMORPHIC STAGES; TOBACCO HORNWORM; HORMONAL-CONTROL AB We describe here some of the components of the exoskeleton of the decapod crustacean with emphasis on the constituent proteins, including both structural and enzymatic. All four layers, but particularly the inner three, of the exoskeletons of four brachyurans contain high concentrations of proteins less-than-or-equal-to 3 1 kDa; the innermost membranous layer is especially rich in such proteins. A number of crab exoskeletal proteins resemble insect cuticle proteins in size (M(r)) and isoelectric point (pl). A further similarity is the cross reactivity of crab exoskeletal proteins with four different antibodies against cuticular proteins of two species of insects. One of the small M, exoskeletal proteins in the Bermuda land crab Gecarcinus lateralis has a similar distribution as a protein of similar size in the cuticle of the tobacco hornworm Manduca sexta. The partial dissolution of an old exoskeleton and formation of the two outer layers of a new exoskeleton are major events in readying a crustacean for the increase in size that occurs at each molt. Expressing both parallel and sequential activation of a number of genes, a single layer of epidermal cells that bounds a crustacean such as G. lateralis synthesizes specific proteins at different stages of the intermolt cycle as the outermost epicuticle and exocuticle are formed during proecdysis and as the endocuticle and membranous layer are formed during metecdysis. Finally, two sets of proteinases isolated from integumentary tissues of land crabs degrade the same exoskeletal proteins in vitro as are degraded in vivo during proecdysis. C1 E TENNESSEE STATE UNIV,DEPT BIOPHYS,JOHNSON CITY,TN 37614. UNIV SO ALABAMA,DEPT BIOL SCI,MOBILE,AL 36688. RP SKINNER, DM (reprint author), OAK RIDGE NATL LAB,DIV BIOL,POB 2009,OAK RIDGE,TN 37831, USA. NR 88 TC 24 Z9 24 U1 3 U2 7 PU AMER SOC ZOOLOGISTS PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0003-1569 J9 AM ZOOL JI Am. Zool. PY 1992 VL 32 IS 3 BP 470 EP 484 PG 15 WC Zoology SC Zoology GA KR814 UT WOS:A1992KR81400015 ER PT J AU MCGREGOR, DA YEUNG, ES AF MCGREGOR, DA YEUNG, ES TI INTERACTIVE CONTROL OF PULSED FIELD GEL-ELECTROPHORESIS VIA REAL-TIME MONITORING SO ANALYTICAL CHEMISTRY LA English DT Article ID LARGE DNA-MOLECULES; SEPARATION AB The migration of DNA fragment bands through a slab gel can be monitored by UV absorption at 254 nm and imaged by a charge-coupled device (CCD) camera. Background correction and immediate viewing of band positions to interactively change the field program in pulsed-field gel electrophoresis is possible throughout the run via this detection scheme. The use of absorption removes the need for staining or radioisotope labelling, thereby simplifying sample preparation and reducing hazardous waste generation. This leaves the DNA in its native state and further analysis can be performed without destaining. The optimization of buffer concentration, electric field strength, temperature, agarose concentration, as well as pulse duration can considerably reduce total run time. For example, DNA from 2 to 850 kb can be separated in 3 h on a 7-cm gel with interactive control of the pulse time, which is 10 times faster than using a constant field program. C1 IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 25 TC 5 Z9 5 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD JAN 1 PY 1992 VL 64 IS 1 BP 1 EP 6 DI 10.1021/ac00025a002 PG 6 WC Chemistry, Analytical SC Chemistry GA GY183 UT WOS:A1992GY18300003 PM 1736677 ER PT J AU ROLES, J MCNERNEY, K GUIOCHON, G AF ROLES, J MCNERNEY, K GUIOCHON, G TI ANALYSIS OF THE SURFACE HETEROGENEITY OF DIFFERENT SAMPLES OF ALUMINUM-OXIDE CERAMIC POWDERS SO ANALYTICAL CHEMISTRY LA English DT Article ID GAS SOLID CHROMATOGRAPHY; ADSORPTION; PROPAGATION AB The homogeneity of the surface of the particles of powders can be characterized by the adsorption energy distribution of different probe compounds selected for exhibiting different types of interaction energy with the chemical groups which can be found on the surface. We describe the results obtained by performing this investigation on a number of different alumina samples. Significant differences between the adsorption energy distributions of high-quality alumina powders for ceramics have been found for 1-chlorobutane, although these samples had identical adsorption energy distributions for diethyl ether. The differences observed for the adsorption energy distribution of 1-chlorobutane, a weak acid, are correlated with significant differences between the process performance of the samples. The performance degrades with increasing fractional surface coverage of a high-energy mode of the distribution. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV ANALYT CHEM,OAK RIDGE,TN 37831. COORS CERAM CO,GOLDEN,CO 80401. NR 20 TC 7 Z9 7 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD JAN 1 PY 1992 VL 64 IS 1 BP 25 EP 32 DI 10.1021/ac00025a006 PG 8 WC Chemistry, Analytical SC Chemistry GA GY183 UT WOS:A1992GY18300007 ER PT J AU ROLES, J GUIOCHON, G AF ROLES, J GUIOCHON, G TI STUDY OF THE SURFACE HETEROGENEITY OF CHROMATOGRAPHIC ALUMINA SO ANALYTICAL CHEMISTRY LA English DT Article ID GAS AB The adsorption energy distribution of diethyl ether and 1-chlorobutane on a sample of porous alumina for chromatography have been determined from their absorption isotherms measured by the ECP method. The changes in these distributions with the degree of hydration of the surface have been studied. For both probes, the fully hydrated surface exhibits a moderate retention factor al infinite dilution, a bi Langmuir isotherm and a bimodal energy distribution with two narrow modes, the higher one having an energy below 13 kcal/mol. For the starting material or the surface dehydrated at 320-degrees-C under a helium stream, the energy distribution is bimodal for diethyl ether and trimodal for 1-chlorobutane. In all cases, these high-energy modes are much wider than the energy modes observed with the hydrated column or the low-energy mode. They are wider and have a slightly higher average energy for the dehydrated column than for the starting material. These results demonstrate that much information on surface properties can be extracted from isotherm data. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV ANALYT CHEM,OAK RIDGE,TN 37831. NR 10 TC 5 Z9 5 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD JAN 1 PY 1992 VL 64 IS 1 BP 32 EP 35 DI 10.1021/ac00025a007 PG 4 WC Chemistry, Analytical SC Chemistry GA GY183 UT WOS:A1992GY18300008 ER PT J AU LOO, JA LOO, RRO LIGHT, KJ EDMONDS, CG SMITH, RD AF LOO, JA LOO, RRO LIGHT, KJ EDMONDS, CG SMITH, RD TI MULTIPLY CHARGED NEGATIVE-IONS BY ELECTROSPRAY IONIZATION OF POLYPEPTIDES AND PROTEINS SO ANALYTICAL CHEMISTRY LA English DT Article ID TRANSFORM MASS-SPECTROMETRY; CAPILLARY ZONE ELECTROPHORESIS; CONFORMATIONAL-CHANGES; CONCANAVALIN-A; INTERFACE; SPECTRA; PERFORMANCE; EQUILIBRIUM; SEQUENCE; PEPTIDE AB Multiply deprotonated polypeptide and protein molecules, (M - nH)n-, produced from pH approximately 11 aqueous solutions, are analyzed by electrospray ionization-mass spectrometry (ESI-MS). Aqueous ammonium hydroxide solutions of the analyte are shown to be preferable to sodium hydroxide solutions for negative-ion ESI due to the production of multiply sodiated protein species from the latter system. Proteins with M(r) to 66000 and having up to 57 negative charges have been detected. Multiply charged negative ions can be produced from ESI of the highly acidic protein pepsin (M(r) approximately 34600) because of its relatively large number of acidic residues, 42. In contrast, the small number of basic amino acid residues for pepsin (4) does not allow formation of highly protonated species essential for positive-ion detection, for mass spectrometers of limited m/z range. Similarly, negative-ion ESI-MS is extended to large oligosaccharide analysis. Preliminary tandem mass spectrometry experiments of multiply charged polypeptide anions demonstrate the utility and potential of negative-ion ESI-MS for structural elucidation. C1 PACIFIC NW LAB, DEPT CHEM SCI, CHEM METHODS & SEPARAT GRP, RICHLAND, WA 99352 USA. RI Smith, Richard/J-3664-2012 OI Smith, Richard/0000-0002-2381-2349 FU NHGRI NIH HHS [HG 00327] NR 68 TC 103 Z9 105 U1 1 U2 14 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0003-2700 J9 ANAL CHEM JI Anal. Chem. PD JAN 1 PY 1992 VL 64 IS 1 BP 81 EP 88 DI 10.1021/ac00025a015 PG 8 WC Chemistry, Analytical SC Chemistry GA GY183 UT WOS:A1992GY18300016 PM 1310574 ER PT J AU ALMON, AC AF ALMON, AC TI ELECTROCHEMICAL DETERMINATION OF PLUTONIUM IN NITRIC-ACID SOLUTIONS SO ANALYTICAL LETTERS LA English DT Article DE PLUTONIUM; DIFFERENTIAL PULSE STRIPPING VOLTAMMETRY; ELECTRODEPOSITION; STANDARD ADDITION ID ELECTRODE; URANIUM AB Differential Pulse Stripping Voltammetry (DPSV) was used to analyze total plutonium in nitric acid solutions with a wide variety of sample matrices containing silver and plutonium. The procedure involves electrodeposition of the plutonium on the electrode surface for a short period of time and then oxidizing or stripping the deposited ion. The nitric acid solution served as the supporting electrolyte. The analysis is not limited by variations in the sample matrix. Any aqueous solution can be analyzed with the addition of the appropriate electrolyte and background subtraction. A standard addition technique is used for calibration to compensate for variation in background composition. The mechanism, parameters, limitations, interferences, accuracy, and detection limits for this analysis procedure are described. RP ALMON, AC (reprint author), WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER LAB,AIKEN,SC 29808, USA. NR 15 TC 1 Z9 1 U1 1 U2 3 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0003-2719 J9 ANAL LETT JI Anal. Lett. PY 1992 VL 25 IS 1 BP 119 EP 124 PG 6 WC Chemistry, Analytical SC Chemistry GA HB333 UT WOS:A1992HB33300011 ER PT J AU ZAMFIR, NV VONBRENTANO, P CASTEN, RF AF ZAMFIR, NV VONBRENTANO, P CASTEN, RF TI ON A SIMPLE FORMULA FOR THE ENERGY OF THE LOWEST OCTUPOLE STATE SO ANNALEN DER PHYSIK LA English DT Article DE EVEN-EVEN NUCLEI; COLLECTIVE SURFACE OCTUPOLE VIBRATION; ENERGY PARAMETRIZATION ID SIMPLE PHENOMENOLOGY; HEAVY-NUCLEI AB A recently introduced way of parameterizing the energies of 3(1)- states in many even-even nuclei, based on the microscopic structure of the low-energy octupole mode, is slightly modified so it now includes all (non-doubly magic) nuclei with A greater-than-or-equal-to 30. C1 UNIV COLOGNE,INST KERNPHYS,W-5000 COLOGNE 41,GERMANY. BROOKHAVEN NATL LAB,UPTON,NY 11973. RP ZAMFIR, NV (reprint author), INST ATOM PHYS,BUCHAREST,ROMANIA. RI Zamfir, Nicolae Victor/F-2544-2011 NR 11 TC 1 Z9 1 U1 0 U2 0 PU JOHANN AMBROSIUS BARTH VERLAG PI HEIDELBERG PA IM WEIHER 10, D-69121 HEIDELBERG, GERMANY SN 0003-3804 J9 ANN PHYS-LEIPZIG JI Ann. Phys.-Leip. PY 1992 VL 1 IS 2 BP 71 EP 77 PG 7 WC Physics, Multidisciplinary SC Physics GA HU884 UT WOS:A1992HU88400001 ER PT J AU SAUTET, P JOACHIM, C BOCQUET, ML SALMERON, M AF SAUTET, P JOACHIM, C BOCQUET, ML SALMERON, M TI STM IMAGE CALCULATIONS FOR ADSORBATE RECOGNITION SO ANNALES DE CHIMIE-SCIENCE DES MATERIAUX LA English DT Article ID TUNNELING MICROSCOPY; MOLECULES; BENZENE AB The principle of STM image calculation using the STM-ESQC method is briefly restated and applications of this technique to STM images of sulfur on Re(0001), Benzene on Rh(111) and Cu-Phthalocyanine on Cu(100) are discussed. The influence of tip apex shape, substrate symmetry and number of adsorbate molecular orbitals near the substrate Fermi level are analysed. C1 CEMES,MOLEC ELECTR GRP,29 RUE JEANNE MARVIG,BP 4347,F-31055 TOULOUSE,FRANCE. ECOLE NORM SUPER,CHIM THEOR LAB,F-69364 LYON 07,FRANCE. LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RI BOCQUET, MARIE-LAURE/A-7810-2011; Sautet, Philippe/G-3710-2014 OI Sautet, Philippe/0000-0002-8444-3348 NR 13 TC 12 Z9 12 U1 0 U2 1 PU MASSON EDITEUR PI PARIS 06 PA 120 BLVD SAINT-GERMAIN, 75280 PARIS 06, FRANCE SN 0151-9107 J9 ANN CHIM-SCI MAT JI Ann. Chim.-Sci. Mat. PY 1992 VL 17 IS 3-4 BP 217 EP 227 PG 11 WC Chemistry, Multidisciplinary; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA JT963 UT WOS:A1992JT96300004 ER PT J AU BATES, JB CHU, YT AF BATES, JB CHU, YT TI ELECTRODE-ELECTROLYTE INTERFACE IMPEDANCE - EXPERIMENTS AND MODEL SO ANNALS OF BIOMEDICAL ENGINEERING LA English DT Article; Proceedings Paper CT MINI SYMP ON BIOELECTRODES, AT THE 12TH ANNUAL MEETING OF THE ENGINEERING IN MEDICINE AND BIOLOGY SOC OF IEEE CY NOV, 1990 CL PHILADELPHIA, PA SP IEEE, ENGN MED & BIOL SOC, IEEE, ELECTROBIOLOGY, PRINCETON APPL RES DE ELECTRODE-ELECTROLYTE INTERFACE; IMPEDANCE; SIMULATION ID FRACTAL MODEL; FREQUENCY-DEPENDENCE; BLOCKING ELECTRODES; ROUGH INTERFACE; AC RESPONSE; DIMENSION; NETWORKS AB The impedance of the junction between a solid or aqueous electrolyte and a metal electrode at which no charge transfer processes occur (blocking contacts) follows closely the constant phase angle form, Z = A(j-omega)-n, over a wide frequency range, where A is a constant, and the frequency exponent n is typically in the range of 0.7 to 0.95. Several models have been proposed in which the magnitude of the frequency exponent n is related by a simple expression to the fractal dimension d of the rough electrode surface. But experiments with aqueous H2SO4 and roughened platinum and silicon electrodes show that there is no simple relationship, if any at all, between n and dBAR when dBAR is determined from the analysis of one dimensional surface profiles. Moreover, n is not a simple function of the average roughness of the electrode. In order to gain some insight into the effect of electrode topography and the interface impedance, a model for the response of the interface to a constant voltage pulse was constructed. This model is based on the idea that, following a pulse, locally concentrated regions of ions accumulate rapidly at the tips of large protrusions on the electrode surface which screens deeper regions of the electrode from the field driven flux of mobile ions. After this rapid charging, ions are able to reach the deeper, screened regions of the electrode by diffusion, and it is this diffusive process that gives rise to the observed t1-n dependence of the charge collected. Computer simulations, similar to the diffusion limited aggregation model, using measured profiles as fixed (non-growing) clusters, gave exponents n in good agreement with experiment. RP BATES, JB (reprint author), OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37830, USA. NR 30 TC 17 Z9 18 U1 0 U2 5 PU BLACKWELL SCIENCE INC PI MALDEN PA 350 MAIN ST, MALDEN, MA 02148 SN 0090-6964 J9 ANN BIOMED ENG JI Ann. Biomed. Eng. PY 1992 VL 20 IS 3 BP 349 EP 362 DI 10.1007/BF02368536 PG 14 WC Engineering, Biomedical SC Engineering GA JB791 UT WOS:A1992JB79100008 PM 1443829 ER PT J AU BRIANT, JK FRANK, DD JAMES, AC EYLER, LL AF BRIANT, JK FRANK, DD JAMES, AC EYLER, LL TI NUMERICAL-SIMULATION OF AEROSOL-PARTICLE TRANSPORT BY OSCILLATING FLOW IN RESPIRATORY AIRWAYS SO ANNALS OF BIOMEDICAL ENGINEERING LA English DT Article DE HIGH-FREQUENCY OSCILLATORY VENTILATION; MAMMALIAN BRONCHIAL TREE; COMPUTATIONAL FLUID MECHANICS ID TAPERED CHANNEL AB Particle transport by oscillating flow in a tapered channel or in a tapered tube was computed from the complete equations of motion. These geometries represent a simplified model of the divergent flow field of the mammalian bronchial tree. The computed deformation profile of a line of particles, transported by the oscillatory motion, was compared with prior experimental results and analytical calculations. All three methods agree that there is transport in the divergent direction of the tube by an axial stream of steady drift in the core for moderately high frequency of oscillation (Womersley parameter in the range of 1 to 10). Bidirectional flow is established by an annular stream in the convergent direction, with no net flow on integral cycles of the oscillating fluid. At higher frequency, however, the steady stream transforms to a different shape in the tapered tube, with transport in the divergent direction nearer the walls of the tube, rather than in the core. Transport by the continuing streams with oscillatory ventilation of the respiratory tract should deliver medicinal aerosols of low intrinsic particle mobility to the peripheral regions of the lungs. C1 PACIFIC NW LAB, DEPT ENERGY SCI, RICHLAND, WA 99352 USA. RP BRIANT, JK (reprint author), PACIFIC NW LAB, DEPT HLTH PHYS, BATTELLE BLVD, RICHLAND, WA 99352 USA. NR 8 TC 3 Z9 3 U1 1 U2 3 PU BLACKWELL SCIENCE INC PI MALDEN PA 350 MAIN ST, MALDEN, MA 02148 SN 0090-6964 J9 ANN BIOMED ENG JI Ann. Biomed. Eng. PY 1992 VL 20 IS 6 BP 573 EP 581 DI 10.1007/BF02368606 PG 9 WC Engineering, Biomedical SC Engineering GA JZ750 UT WOS:A1992JZ75000001 PM 1449227 ER PT J AU BIELSKI, BHJ AF BIELSKI, BHJ TI REACTIVITY OF HYPERVALENT IRON WITH BIOLOGICAL COMPOUNDS SO ANNALS OF NEUROLOGY LA English DT Article; Proceedings Paper CT SYMP ON THE ROLE OF IRON AND OXIDANT STRESS IN THE NORMAL AND PARKINSONIAN BRAIN CY NOV 14-17, 1991 CL SARASOTA, FL SP UNIV S FLORIDA ID PULSE-RADIOLYSIS; HYDROGEN-PEROXIDE; OXIDATION-STATES; FERRATE(V); REDUCTION; ION AB Although it is well established that the ferryl (Fe=O2+) and perferryl (Fe=O3+) oxidation states of iron,have a beneficial role in enzymatic oxidation and hydroxylation processes, as small complexes that are suspected to be formed in Fenton reactions, they may have deleterious effects on living cells. I discuss the basic chemistry of small hypervalent iron complexes. Their reactivity with biological compounds is illustrated by considering ascorbic acid and essential amino acids. A method is proposed for the determination of the ratio of [.OH]/[ferryl] in Fenton-type reactions. RP BIELSKI, BHJ (reprint author), BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973, USA. FU NIGMS NIH HHS [R01 GM23656-13A] NR 21 TC 17 Z9 17 U1 2 U2 9 PU LITTLE BROWN CO PI BOSTON PA 34 BEACON STREET, BOSTON, MA 02108-1493 SN 0364-5134 J9 ANN NEUROL JI Ann. Neurol. PY 1992 VL 32 SU S BP S28 EP S32 DI 10.1002/ana.410320707 PG 5 WC Clinical Neurology; Neurosciences SC Neurosciences & Neurology GA JH405 UT WOS:A1992JH40500006 PM 1510378 ER PT J AU HILL, CT SALOPEK, DS AF HILL, CT SALOPEK, DS TI CALCULABLE NONMINIMAL COUPLING OF COMPOSITE SCALAR BOSONS TO GRAVITY SO ANNALS OF PHYSICS LA English DT Article ID GRAND UNIFIED THEORIES; INFLATIONARY UNIVERSE; SYMMETRY-BREAKING; MASS; COSMOLOGY; FLATNESS; HORIZON; MODEL RP FERMI NATL ACCELERATOR LAB, BATAVIA, IL 60510 USA. NR 23 TC 50 Z9 50 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 0003-4916 EI 1096-035X J9 ANN PHYS-NEW YORK JI Ann. Phys. PD JAN PY 1992 VL 213 IS 1 BP 21 EP 30 DI 10.1016/0003-4916(92)90281-P PG 10 WC Physics, Multidisciplinary SC Physics GA HA492 UT WOS:A1992HA49200002 ER PT J AU KOO, DC KRON, RG AF KOO, DC KRON, RG TI EVIDENCE FOR EVOLUTION IN FAINT FIELD GALAXY SAMPLES SO ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS LA English DT Review DE DISTANT FIELD GALAXIES; REDSHIFTS; COSMOLOGY ID ANGULAR-CORRELATION FUNCTION; HIGH-REDSHIFT GALAXIES; LY-ALPHA-EMISSION; DEEP CCD SURVEY; NUMBER COUNTS; ENERGY-DISTRIBUTIONS; ABSORPTION SYSTEMS; PRIMEVAL GALAXIES; DISTANT CLUSTERS; STAR FORMATION C1 UNIV CALIF SANTA CRUZ,BOARD STUDIES ASTRON & ASTROPHYS,SANTA CRUZ,CA 95064. FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. UNIV CHICAGO,YERKES OBSERV,CHICAGO,IL 60637. RP KOO, DC (reprint author), UNIV CALIF SANTA CRUZ,LICK OBSERV,MT HAMILTON,CA 95140, USA. NR 131 TC 206 Z9 207 U1 0 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-4146 J9 ANNU REV ASTRON ASTR JI Annu. Rev. Astron. Astrophys. PY 1992 VL 30 BP 613 EP 652 PG 40 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA JN532 UT WOS:A1992JN53200018 ER PT J AU SHUGART, HH SMITH, TM POST, WM AF SHUGART, HH SMITH, TM POST, WM TI THE POTENTIAL FOR APPLICATION OF INDIVIDUAL-BASED SIMULATION-MODELS FOR ASSESSING THE EFFECTS OF GLOBAL CHANGE SO ANNUAL REVIEW OF ECOLOGY AND SYSTEMATICS LA English DT Review DE SUCCESSION; FOREST DYNAMICS; CLIMATE; VEGETATION ID CO2-INDUCED CLIMATE CHANGE; FOREST SUCCESSION MODELS; PLANT-COMMUNITIES; BOREAL FORESTS; EVALUATING PERFORMANCE; ENVIRONMENTAL-FACTORS; VEGETATION DYNAMICS; STAND DEVELOPMENT; INTERIOR ALASKA; COMPUTER-MODEL C1 OAK RIDGE NATL LAB,DEPT ENVIRONM SCI,OAK RIDGE,TN 37830. RP SHUGART, HH (reprint author), UNIV VIRGINIA,DEPT ENVIRONM SCI,CHARLOTTESVILLE,VA 22901, USA. RI Post, Wilfred/B-8959-2012; Shugart, Herman/C-5156-2009 NR 122 TC 96 Z9 104 U1 1 U2 11 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-4162 J9 ANNU REV ECOL SYST JI Annu. Rev. Ecol. Syst. PY 1992 VL 23 BP 15 EP 38 PG 24 WC Ecology; Evolutionary Biology SC Environmental Sciences & Ecology; Evolutionary Biology GA JZ281 UT WOS:A1992JZ28100002 ER PT J AU LEVINE, MD LIU, F SINTON, JE AF LEVINE, MD LIU, F SINTON, JE TI CHINA ENERGY SYSTEM - HISTORICAL EVOLUTION, CURRENT ISSUES, AND PROSPECTS SO ANNUAL REVIEW OF ENERGY AND THE ENVIRONMENT LA English DT Review DE CHINA; ENERGY CONSERVATION; ENERGY IN CHINA; ENERGY POLICY; GLOBAL CLIMATE CHANGE RP LEVINE, MD (reprint author), LAWRENCE BERKELEY LAB,DIV ENERGY & ENVIRONM,ENERGY ANAL PROGRAM,BERKELEY,CA 94720, USA. NR 43 TC 14 Z9 14 U1 1 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 1056-3466 J9 ANNU REV ENERG ENV JI Annu. Rev. Energ. Environ. PY 1992 VL 17 BP 405 EP 435 PG 31 WC Energy & Fuels; Engineering, Environmental SC Energy & Fuels; Engineering GA JU212 UT WOS:A1992JU21200015 ER PT J AU MEYERS, S SCHIPPER, L AF MEYERS, S SCHIPPER, L TI WORLD-ENERGY USE IN THE 1970S AND 1980S - EXPLORING THE CHANGES SO ANNUAL REVIEW OF ENERGY AND THE ENVIRONMENT LA English DT Review DE ENERGY-INTENSITY; ENERGY-EFFICIENCY; ENERGY CONSUMPTION ID DEVELOPING-COUNTRIES; ELECTRICITY-USE; INTENSITY; TRENDS; SECTOR RP MEYERS, S (reprint author), LAWRENCE BERKELEY LAB,DIV ENERGY & ENVIRONM,ENERGY ANAL PROGRAM,BERKELEY,CA 94720, USA. NR 33 TC 7 Z9 7 U1 0 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 1056-3466 J9 ANNU REV ENERG ENV JI Annu. Rev. Energ. Environ. PY 1992 VL 17 BP 463 EP 505 PG 43 WC Energy & Fuels; Engineering, Environmental SC Energy & Fuels; Engineering GA JU212 UT WOS:A1992JU21200017 ER PT J AU GREENE, DL AF GREENE, DL TI ENERGY-EFFICIENCY IMPROVEMENT POTENTIAL OF COMMERCIAL AIRCRAFT SO ANNUAL REVIEW OF ENERGY AND THE ENVIRONMENT LA English DT Review DE ENERGY-EFFICIENCY; TRANSPORT ENERGY; AIRCRAFT EFFICIENCY; ENERGY CONSERVATION; AIR TRANSPORT ENERGY ID COMPOSITES RP GREENE, DL (reprint author), OAK RIDGE NATL LAB,CTR TRANSPORTAT ANAL,DIV ENERGY,OAK RIDGE,TN 37831, USA. NR 86 TC 29 Z9 29 U1 0 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 1056-3466 J9 ANNU REV ENERG ENV JI Annu. Rev. Energ. Environ. PY 1992 VL 17 BP 537 EP 573 DI 10.1146/annurev.eg.17.110192.002541 PG 37 WC Energy & Fuels; Engineering, Environmental SC Energy & Fuels; Engineering GA JU212 UT WOS:A1992JU21200019 ER PT J AU KINNEY, JH NICHOLS, MC AF KINNEY, JH NICHOLS, MC TI X-RAY TOMOGRAPHIC MICROSCOPY (XTM) USING SYNCHROTRON RADIATION SO ANNUAL REVIEW OF MATERIALS SCIENCE LA English DT Review DE TOMOGRAPHY; MICROTOMOGRAPHY; X-RAY IMAGING; RECONSTRUCTION FROM PROJECTIONS; X-RAY MICROSCOPY ID COMPUTED-TOMOGRAPHY; RESOLUTION; CARIES; MICROTOMOGRAPHY; COMPOSITES; FIBER C1 SANDIA NATL LABS,DEPT MAT,LIVERMORE,CA 94551. RP KINNEY, JH (reprint author), LAWRENCE LIVERMORE NATL LAB,DEPT CHEM & MAT SCI,LIVERMORE,CA 94551, USA. NR 47 TC 183 Z9 184 U1 2 U2 29 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0084-6600 J9 ANNU REV MATER SCI JI Annu. Rev. Mater. Sci. PY 1992 VL 22 BP 121 EP 152 PG 32 WC Materials Science, Multidisciplinary SC Materials Science GA JH688 UT WOS:A1992JH68800005 ER PT J AU KATZ, JD AF KATZ, JD TI MICROWAVE SINTERING OF CERAMICS SO ANNUAL REVIEW OF MATERIALS SCIENCE LA English DT Review DE PROCESSING; JOINING; POWDER SYNTHESIS ID GLASS; ENERGY RP KATZ, JD (reprint author), LOS ALAMOS NATL LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87545, USA. NR 74 TC 161 Z9 163 U1 1 U2 29 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0084-6600 J9 ANNU REV MATER SCI JI Annu. Rev. Mater. Sci. PY 1992 VL 22 BP 153 EP 170 PG 18 WC Materials Science, Multidisciplinary SC Materials Science GA JH688 UT WOS:A1992JH68800006 ER PT J AU PENNYCOOK, SJ AF PENNYCOOK, SJ TI Z-CONTRAST TRANSMISSION ELECTRON-MICROSCOPY - DIRECT ATOMIC IMAGING OF MATERIALS SO ANNUAL REVIEW OF MATERIALS SCIENCE LA English DT Review DE SEMICONDUCTORS; SUPERCONDUCTORS; EPITAXIAL GROWTH; SUPERLATTICES; CRITICAL CURRENTS ID YBA2CU3O7-X THIN-FILMS; CRITICAL CURRENTS; SUPERLATTICES; GROWTH; ORDER; SUPERCONDUCTORS; CRYSTALS; EPITAXY; FIELD; STEM RP PENNYCOOK, SJ (reprint author), OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831, USA. NR 45 TC 61 Z9 61 U1 2 U2 15 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0084-6600 J9 ANNU REV MATER SCI JI Annu. Rev. Mater. Sci. PY 1992 VL 22 BP 171 EP 195 PG 25 WC Materials Science, Multidisciplinary SC Materials Science GA JH688 UT WOS:A1992JH68800007 ER PT J AU HALL, HL HOFFMAN, DC AF HALL, HL HOFFMAN, DC TI DELAYED FISSION SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE LA English DT Review DE FISSION BARRIERS; TOTAL KINETIC ENERGY (TKE) DISTRIBUTIONS; MASS-YIELD DISTRIBUTIONS; FISSION FRAGMENT KINETIC ENERGY; HALF-LIVES; LOW-ENERGY FISSION; SHAPE ISOMERS; FISSION ISOMERS; SUPERDEFORMATION; CHARGED-PARTICLE REACTIONS; NUCLEAR EXPLOSIONS; NUCLEOSYNTHESIS; RADIOCHEMICAL SEPARATIONS; DETECTION SYSTEMS ID ASTROPHYSICAL R-PROCESS; NEUTRON EMISSION; NUCLEAR-FISSION; AGE C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,GT SEABORG INST TRANSACTINIUM SCI,LIVERMORE,CA 94550. RP HALL, HL (reprint author), LAWRENCE LIVERMORE NATL LAB,DIV NUCL CHEM L-233,LIVERMORE,CA 94550, USA. OI Hall, Howard/0000-0002-4080-5159 NR 49 TC 29 Z9 29 U1 0 U2 3 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0163-8998 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 1992 VL 42 BP 147 EP 175 PG 29 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA KB233 UT WOS:A1992KB23300005 ER PT J AU NIR, Y QUINN, HR AF NIR, Y QUINN, HR TI CP VIOLATION IN B-PHYSICS SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE LA English DT Review DE PARTICLE PHYSICS; STANDARD MODEL; B-MESON DECAYS; CKM MATRIX; PENGUIN DIAGRAMS ID KOBAYASHI-MASKAWA MATRIX; LEFT-RIGHT SYMMETRY; ISOSPIN ANALYSIS; ANGULAR-CORRELATIONS; STANDARD-MODEL; BETA-DECAYS; P-VIOLATION; ASYMMETRIES; MESONS; PREDICTIONS C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. RP NIR, Y (reprint author), WEIZMANN INST SCI,DEPT PHYS,IL-76100 REHOVOT,ISRAEL. NR 97 TC 140 Z9 140 U1 0 U2 1 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0163-8998 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 1992 VL 42 BP 211 EP 250 PG 40 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA KB233 UT WOS:A1992KB23300007 ER PT J AU APPEL, JA AF APPEL, JA TI HADROPRODUCTION OF CHARM PARTICLES SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE LA English DT Review DE GLUON FUSION; STRUCTURE FUNCTIONS; FRAGMENTATION; HADRONIZATION; A-DEPENDENCE ID HEAVY-QUARK PRODUCTION; PROTON-EMULSION INTERACTIONS; HADRON-HADRON-COLLISIONS; PRODUCTION CROSS-SECTION; 15-FOOT BUBBLE-CHAMBER; GEV/C PP INTERACTIONS; D-MESON PRODUCTION; D-STAR PRODUCTION; LUND MONTE-CARLO; NEUTRAL D-MESONS RP APPEL, JA (reprint author), FERMI NATL ACCELERATOR LAB,DEPT PHYS,BATAVIA,IL 60510, USA. NR 102 TC 89 Z9 89 U1 0 U2 2 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0163-8998 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 1992 VL 42 BP 367 EP 399 PG 33 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA KB233 UT WOS:A1992KB23300011 ER PT J AU STACHEL, J YOUNG, GR AF STACHEL, J YOUNG, GR TI RELATIVISTIC HEAVY-ION PHYSICS AT CERN AND BNL SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE LA English DT Review DE QCD; QUARK-GLUON PLASMA; DECONFINED MATTER; RESTORATION OF CHIRAL SYMMETRY; RELATIVISTIC HEAVY ION COLLISIONS; AGS; SPS; RHIC ID NUCLEUS-NUCLEUS COLLISIONS; QUARK-GLUON-PLASMA; J-PSI-SUPPRESSION; TRANSVERSE-MOMENTUM DISTRIBUTIONS; SULFUR-TUNGSTEN INTERACTIONS; HIGH-ENERGY COLLISIONS; LAMBDA-BAR-PRODUCTION; 200 GEV-NUCLEON; INTERSECTING STORAGE-RINGS; DIRECT-PHOTON PRODUCTION C1 OAK RIDGE NATL LAB, DIV PHYS, OAK RIDGE, TN 37831 USA. RP SUNY STONY BROOK, DEPT PHYS, STONY BROOK, NY 11794 USA. NR 203 TC 39 Z9 39 U1 0 U2 1 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 USA SN 0163-8998 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 1992 VL 42 BP 537 EP 597 PG 61 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA KB233 UT WOS:A1992KB23300015 ER PT J AU NORTHRUP, FJ SEARS, TJ AF NORTHRUP, FJ SEARS, TJ TI STIMULATED-EMISSION PUMPING - APPLICATIONS TO HIGHLY VIBRATIONALLY EXCITED TRANSIENT MOLECULES SO ANNUAL REVIEW OF PHYSICAL CHEMISTRY LA English DT Review DE CHEMICAL INTERMEDIATES; LASER-INDUCED FLUORESCENCE; FLUORESCENCE SPECTROSCOPY; ROTATIONAL ENERGY LEVELS; VIBRATIONAL ENERGY LEVELS ID INDUCED-FLUORESCENCE SPECTROSCOPY; TRIATOMIC-MOLECULES; SEMIRIGID BENDER; ENERGY-LEVELS; FREE JET; DISSOCIATION THRESHOLD; PARA-DIFLUOROBENZENE; POPULATION TRANSFER; P-DIFLUOROBENZENE; RAMAN-SCATTERING C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. RP NORTHRUP, FJ (reprint author), NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208, USA. RI Sears, Trevor/B-5990-2013 OI Sears, Trevor/0000-0002-5559-0154 NR 84 TC 34 Z9 34 U1 0 U2 2 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-426X J9 ANNU REV PHYS CHEM JI Annu. Rev. Phys. Chem. PY 1992 VL 43 BP 127 EP 152 DI 10.1146/annurev.physchem.43.1.127 PG 26 WC Chemistry, Physical SC Chemistry GA JZ284 UT WOS:A1992JZ28400005 ER PT J AU WESTON, RE FLYNN, GW AF WESTON, RE FLYNN, GW TI RELAXATION OF MOLECULES WITH CHEMICALLY SIGNIFICANT AMOUNTS OF VIBRATIONAL-ENERGY - THE DAWN OF THE QUANTUM STATE RESOLVED ERA SO ANNUAL REVIEW OF PHYSICAL CHEMISTRY LA English DT Review DE UNIMOLECULAR CHEMICAL REACTIONS; LASER PROBES; COLLISION DYNAMICS; VIBRATIONAL ENERGY TRANSFER; STATE-TO-STATE MECHANISMS ID HIGHLY EXCITED NO2; INFRARED DOUBLE-RESONANCE; COLLISIONALLY TRANSFERRED SPIKES; METHYL ISOCYANIDE ISOMERIZATION; GROUND ELECTRONIC STATE; RANDOM-WALK MODEL; PARA-DIFLUOROBENZENE; TEMPERATURE-DEPENDENCE; MULTIPHOTON IONIZATION; POLYATOMIC-MOLECULES C1 COLUMBIA UNIV,DEPT CHEM,NEW YORK,NY 10027. COLUMBIA UNIV,COLUMBIA RADIAT LAB,NEW YORK,NY 10027. RP WESTON, RE (reprint author), BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973, USA. NR 123 TC 102 Z9 102 U1 2 U2 6 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-426X J9 ANNU REV PHYS CHEM JI Annu. Rev. Phys. Chem. PY 1992 VL 43 BP 559 EP 589 DI 10.1146/annurev.physchem.43.1.559 PG 31 WC Chemistry, Physical SC Chemistry GA JZ284 UT WOS:A1992JZ28400020 ER PT J AU GREEN, WH MOORE, CB POLIK, WF AF GREEN, WH MOORE, CB POLIK, WF TI TRANSITION-STATES AND RATE CONSTANTS FOR UNIMOLECULAR REACTIONS SO ANNUAL REVIEW OF PHYSICAL CHEMISTRY LA English DT Review DE INTRAMOLECULAR ENERGY TRANSFER; REACTION DYNAMICS; STATISTICAL PROCESSES; FORMALDEHYDE; KETENE ID VIBRATIONAL OVERTONE SPECTROSCOPY; MICROCANONICAL VARIATIONAL THEORY; INTERPOLATED PARTITION-FUNCTION; STATISTICAL ENSEMBLES METHOD; NASCENT PRODUCT EXCITATIONS; POTENTIAL-ENERGY SURFACES; TERT-BUTYL HYDROPEROXIDE; ADIABATIC CHANNEL MODEL; DISSOCIATION THRESHOLD; PHOTODISSOCIATION DYNAMICS C1 UNIV CALIF BERKELEY, DEPT CHEM, BERKELEY, CA 94720 USA. LAWRENCE BERKELEY LAB, DIV CHEM SCI, BERKELEY, CA 94720 USA. HOPE COLL, DEPT CHEM, HOLLAND, MI 49423 USA. RP GREEN, WH (reprint author), EXXON RES & ENGN CO, ANNANDALE, NJ 08801 USA. RI Green, William/C-9684-2012 OI Green, William/0000-0003-2603-9694 NR 134 TC 133 Z9 134 U1 1 U2 15 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0066-426X J9 ANNU REV PHYS CHEM JI Annu. Rev. Phys. Chem. PY 1992 VL 43 BP 591 EP 626 DI 10.1146/annurev.physchem.43.1.591 PG 36 WC Chemistry, Physical SC Chemistry GA JZ284 UT WOS:A1992JZ28400021 ER PT J AU TENFORDE, TS AF TENFORDE, TS TI BIOLOGICAL INTERACTIONS AND POTENTIAL HEALTH-EFFECTS OF EXTREMELY-LOW-FREQUENCY MAGNETIC-FIELDS FROM POWER-LINES AND OTHER COMMON SOURCES SO ANNUAL REVIEW OF PUBLIC HEALTH LA English DT Review DE MECHANISMS OF INTERACTION; CELL AND TISSUE EFFECTS; CANCER; FETAL DEVELOPMENT; EXPOSURE GUIDELINES ID VIDEO DISPLAY TERMINALS; ELECTRICAL WIRING CONFIGURATIONS; FINNISH CASE-REFERENT; SINGLE-STRAND BREAKS; ELECTROMAGNETIC-FIELDS; CYCLOTRON-RESONANCE; CHILDHOOD-CANCER; BIRTH-DEFECTS; CELLULAR TRANSCRIPTION; OCCUPATIONAL EXPOSURE RP TENFORDE, TS (reprint author), PACIFIC NW LAB, CTR LIFE SCI, RICHLAND, WA 99352 USA. NR 120 TC 51 Z9 51 U1 2 U2 10 PU ANNUAL REVIEWS INC PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0139 SN 0163-7525 J9 ANNU REV PUBL HEALTH JI Annu. Rev. Public Health PY 1992 VL 13 BP 173 EP 196 DI 10.1146/annurev.publhealth.13.1.173 PG 24 WC Public, Environmental & Occupational Health SC Public, Environmental & Occupational Health GA HT577 UT WOS:A1992HT57700008 PM 1599584 ER PT J AU MATHER, MW FEE, JA AF MATHER, MW FEE, JA TI DEVELOPMENT OF PLASMID CLONING VECTORS FOR THERMUS-THERMOPHILUS HB8 - EXPRESSION OF A HETEROLOGOUS, PLASMID-BORNE KANAMYCIN NUCLEOTIDYLTRANSFERASE GENE SO APPLIED AND ENVIRONMENTAL MICROBIOLOGY LA English DT Note ID TRYPTOPHAN-SYNTHETASE GENES; COLI RECOMBINANT COLONIES; YELLOWSTONE-NATIONAL-PARK; EXTREME THERMOPHILE; NUCLEOTIDE-SEQUENCE; HB27; DNA; TRANSFORMATION; CELLS AB While several Thermus genes have been cloned and T. thermophilus has been shown to be transformable, molecular genetic studies of these thermophiles have been hampered by the absence of selectable cloning vectors. We have constructed a selectable plasmid by random insertion of a heterologous gene encoding a thermostable kanamycin nucleotidyltransferase activity into a cryptic, multicopy plasmid from T. thermophilus HB8. This plasmid should serve as a suitable starting point for the development of a gene expression system for T. thermophilus. C1 UNIV CALIF LOS ALAMOS SCI LAB,STABLE ISOTOPE RESOURCE ISOTOPE & STRUCT CHEM GRP,LOS ALAMOS,NM 87545. RP MATHER, MW (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,BIOCHEM SECT,MAIL STOP C345,LOS ALAMOS,NM 87545, USA. FU NIGMS NIH HHS [GM35342] NR 27 TC 42 Z9 43 U1 1 U2 1 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1325 MASSACHUSETTS AVENUE, NW, WASHINGTON, DC 20005-4171 SN 0099-2240 J9 APPL ENVIRON MICROB JI Appl. Environ. Microbiol. PD JAN PY 1992 VL 58 IS 1 BP 421 EP 425 PG 5 WC Biotechnology & Applied Microbiology; Microbiology SC Biotechnology & Applied Microbiology; Microbiology GA GY253 UT WOS:A1992GY25300066 PM 1311546 ER PT J AU BOLIVAR, SL AF BOLIVAR, SL TI LANDSCAPE GEOCHEMISTRY - RETROSPECT AND PROSPECT - 1990 SO APPLIED GEOCHEMISTRY LA English DT Note RP BOLIVAR, SL (reprint author), LOS ALAMOS NATL LAB,MS-J521,LOS ALAMOS,NM 87545, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0883-2927 J9 APPL GEOCHEM JI Appl. Geochem. PD JAN PY 1992 VL 7 IS 1 BP 55 EP 55 DI 10.1016/0883-2927(92)90013-S PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA HW888 UT WOS:A1992HW88800002 ER PT J AU LEWIS, WB AF LEWIS, WB TI SINGLE-CRYSTAL EPR-SPECTRUM OF CR-3+ IN LANTHANUM LUTECIUM GALLIUM GARNET SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article AB The Cr3+ EPR spectra of YAG type crystals normally consist of four peaks whose positions are dependent on the axial zero-field splitting D with axis along a [111] direction and angle-theta between that direction and the applied field H0. In LLGG only three principal peaks are observed with zero-field axis nearly along x, y or z. This anomaly is attributed to the relatively small size of Cr3+ compared to Lu3+ which it displaces in an octahedral site. D varies slightly for the different zero-field axes: 0.480 cm-1 along x, 0.429 cm-1 along y and 0.470 cm-1 along z. The spectroscopic splitting factor g = 1.978 +/- 0.001 is essentially isotropic and independent of axes within the experimental error. RP LEWIS, WB (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544, USA. NR 17 TC 2 Z9 2 U1 1 U2 3 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD JAN PY 1992 VL 54 IS 1 BP 31 EP 34 DI 10.1007/BF00348126 PG 4 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA HB489 UT WOS:A1992HB48900006 ER PT J AU FISENNE, IM GEORGE, AC KELLER, HW AF FISENNE, IM GEORGE, AC KELLER, HW TI EFFECT OF VARIOUS PARAMETERS ON RN-222 INTERCOMPARISON RESULTS SO APPLIED RADIATION AND ISOTOPES LA English DT Article; Proceedings Paper CT SYMP ON LOW-LEVEL-RADIOACTIVITY MEASURING TECHNIQUES AND ALPHA-PARTICLE SPECTROMETRY CY JUN 04-07, 1991 CL MONACO SP INT COMM RADIONUCLIDE METROL AB The U.S. Department of Energy (USDOE) Environmental Measurements Laboratory (EML) has hosted a series of radon-222 measurement intercomparison exercises since 1981. Twenty-eight facilities have participated in at least six of the 18 exercises. The intercomparison results of these facilities were used to develop a database to attempt to assess the influence of various parameters on the measurements. Single and multiple correlation testing was performed using a standard statistical software package. Excluding calibration and calculation errors, the strongest association found was between the radon concentration and distance from EML. The probable explanation for this finding is discussed. RP FISENNE, IM (reprint author), US DOE,ENVIRONM MEASUREMENTS LAB,NEW YORK,NY 10014, USA. NR 10 TC 1 Z9 1 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0969-8043 J9 APPL RADIAT ISOTOPES JI Appl. Radiat. Isot. PD JAN-FEB PY 1992 VL 43 IS 1-2 BP 139 EP 148 PG 10 WC Chemistry, Inorganic & Nuclear; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Chemistry; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA GV625 UT WOS:A1992GV62500019 ER PT J AU DECKER, KM SANDERSON, CG AF DECKER, KM SANDERSON, CG TI A REEVALUATION OF COMMERCIAL IBM PC SOFTWARE FOR THE ANALYSIS OF LOW-LEVEL ENVIRONMENTAL GAMMA-RAY SPECTRA SO APPLIED RADIATION AND ISOTOPES LA English DT Article; Proceedings Paper CT SYMP ON LOW-LEVEL-RADIOACTIVITY MEASURING TECHNIQUES AND ALPHA-PARTICLE SPECTROMETRY CY JUN 04-07, 1991 CL MONACO SP INT COMM RADIONUCLIDE METROL AB In 1988, a comparative evaluation of seven commercially available software packages for the analysis of low-level environmental gamma-ray spectra was performed. At that time it was determined that many of the packages did not contain all the features that were necessary for the accurate analysis of complex, low-level environmental samples. The evaluation concentrated on peak detection, noise and phantom-peak rejection, resolution of peak doublets, and nuclide identification. A new evaluation was conducted on updated versions of four of the previously evaluated programs and two additional programs from Canada and Germany. The evaluation involved the analysis of synthetic and actual spectral data, including an air filter containing debris from the Chernobyl accident. System requirements, accurate nuclide quantification and ease of operation are also reported. RP DECKER, KM (reprint author), US DOE,ENVIRONM MEASUREMENTS LAB,376 HUDSON ST,NEW YORK,NY 10014, USA. NR 1 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0969-8043 J9 APPL RADIAT ISOTOPES JI Appl. Radiat. Isot. PD JAN-FEB PY 1992 VL 43 IS 1-2 BP 323 EP 337 PG 15 WC Chemistry, Inorganic & Nuclear; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Chemistry; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA GV625 UT WOS:A1992GV62500035 ER PT J AU MOON, TJ HUA, TQ WALKER, JS PICOLOGLOU, BF AF MOON, TJ HUA, TQ WALKER, JS PICOLOGLOU, BF TI LIQUID-METAL FLOW IN A SIMPLE MANIFOLD WITH A STRONG TRANSVERSE MAGNETIC-FIELD SO APPLIED SCIENTIFIC RESEARCH LA English DT Article ID RECTANGULAR DUCTS; WALLS; AREA AB This paper treats a liquid-metal flow through a simple manifold connecting one duct to two parallel ducts. The manifold consists of an infinitely long, constant-area, rectangular duct with a uniform, transverse magnetic field and with a semi-infinite middle wall at the plane of symmetry which is perpendicular to the magnetic field. The magnetic flux density is sufficiently large that inertial effects can be neglected everywhere and that viscous effects are confined to boundary layers and to an interior layer along the magnetic field lines through the end of the middle wall. The purpose of this paper is to illustrate an approach with eigenfunction expansions which will be useful for manifolds with many parallel ducts. In the present simple manifold, the principal three-dimensional effect is a transfer of flow to the inviscid core region from the high-velocity jets adjacent to the sides which are parallel to the magnetic field. There is also an important redistribution of flow along magnetic field lines inside the side-wall boundary layers. C1 UNIV ILLINOIS,DEPT MECH & IND ENGN,URBANA,IL 61801. ARGONNE NATL LAB,DIV ENGN PHYS,ARGONNE,IL 60439. RP MOON, TJ (reprint author), UNIV TEXAS,DEPT MECH ENGN,AUSTIN,TX 78712, USA. NR 5 TC 5 Z9 5 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0003-6994 J9 APPL SCI RES JI Appl. Sci. Res. PD JAN PY 1992 VL 49 IS 1 BP 49 EP 65 DI 10.1007/BF00382742 PG 17 WC Thermodynamics; Mechanics SC Thermodynamics; Mechanics GA HD954 UT WOS:A1992HD95400003 ER PT J AU POPENOE, DD STOLE, SM PORTER, MD AF POPENOE, DD STOLE, SM PORTER, MD TI OPTICAL CONSIDERATIONS FOR INFRARED REFLECTION SPECTROSCOPIC ANALYSIS IN THE C-H STRETCHING REGION OF MONOLAYER FILMS AT AN AQUEOUS METAL INTERFACE SO APPLIED SPECTROSCOPY LA English DT Article ID SELF-ASSEMBLED MONOLAYERS; ORGANIZED MOLECULAR ASSEMBLIES; EXTERNAL REFLECTION; STRUCTURAL CHARACTERIZATION; ABSORPTION-SPECTROSCOPY; ELECTRODE; GOLD; SURFACES; SPECTROELECTROCHEMISTRY; ORIENTATION AB This paper describes the optical analysis, construction, testing, and application of a cell for measuring in situ IR reflection spectra in the C-H stretching region of monolayer films of long-chain alkanethiolates on evaporated Au films beneath a thin overlayer (approximately 1-mu-m) of aqueous solution. The cell facilitates the interchange of sample (monolayer-coated) and reference substrates-a major improvement over previous designs. This allows the acquisition of an IR reflection spectrum of a monolayer without the application of electrochemical or polarization-modulation methods. The optical properties of the cell are analyzed within the context of classical electromagnetic theory; the effects of angle of incidence, solution layer thickness, and solution composition (H2O and D2O) and the refractive indices of the IR-transparent window material on the observed spectrum are specifically examined. Calculations of both the mean-square electric fields and the reflection spectra for a monolayer of octadecanethiolate on Au are presented. From these results, conditions to achieve high surface detectability are identified, and optically induced alterations in the intensities and shapes of the monolayer spectrum are delineated. Spectra for the same monolayer are measured to test these predictions as well as to assess the practical limitations of the experimental technique. C1 US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 55 TC 51 Z9 51 U1 0 U2 13 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JAN PY 1992 VL 46 IS 1 BP 79 EP 87 DI 10.1366/0003702924444498 PG 9 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA HB486 UT WOS:A1992HB48600013 ER PT J AU POWELL, GL MILOSEVIC, M LUCANIA, J HARRICK, NJ AF POWELL, GL MILOSEVIC, M LUCANIA, J HARRICK, NJ TI THE SPECTROPUS SYSTEM - REMOTE SAMPLING ACCESSORIES FOR REFLECTANCE, EMISSION, AND TRANSMISSION ANALYSIS USING FOURIER-TRANSFORM INFRARED-SPECTROSCOPY SO APPLIED SPECTROSCOPY LA English DT Article DE FT-IR; INFRARED SPECTROSCOPY; DIFFUSE REFLECTANCE, SPECULAR REFLECTANCE; GAS ANALYSIS; EMISSION; LITHIUM HYDRIDE; STAINS; URANIUM; ALUMINUM; COMPOSITES; WOOD; OILS; INKS ID ALUMINUM AB The Spectropus(TM) system, a versatile optical sampling system for performing infrared spectroscopic analyses on remotely located samples with little regard to their size and with spectral quality and sampling rates comparable to, or better than, those achievable with spectrometer sample compartment accessories, is described. The Spectropus(TM) uses a "glass-tube beam-line" optical transfer system for delivering the collimated beam of an FT-IR spectrometer to one of several dedicated accessories, complete with its own detector, that may be located several meters distance from the spectrometer. The accessories include the barrel ellipsoid diffuse reflectance and emission accessory, the grazing-incidence external reflection accessory, and the gas analysis accessory. One system described here supports up to four accessories in laboratory air and another supports two accessories in two different glove boxes. Application examples include the monitoring of the formation of LiOH and LiOD on LiH and LiD in glove boxes as a result of moisture corrosion; the analysis of ink stains on paper; the analysis of inks, parylene films, and oil stains on metals; the analysis, with monolayer resolution, of oxides on aluminum foil and on uranium being oxidized in air; the analysis of wood and of graphite-epoxy composites, including the rapid sequential determination of diffuse reflectance and emission spectra from one point on one sample; and sub-part-per-million gas analyses using an evacuated cell reference spectrum that is free of pressurization stress artifacts. C1 HARRICK SCI INC,OSSINING,NY 10562. RP POWELL, GL (reprint author), MARTIN MARIETTA ENERGY SYST INC,OAK RIDGE Y-12 PLANT,OAK RIDGE,TN 37831, USA. NR 17 TC 15 Z9 15 U1 0 U2 8 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JAN PY 1992 VL 46 IS 1 BP 111 EP 125 DI 10.1366/0003702924444272 PG 15 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA HB486 UT WOS:A1992HB48600018 ER PT J AU KOUTNY, LB YEUNG, ES AF KOUTNY, LB YEUNG, ES TI AUTOMATED IMAGE-ANALYSIS FOR DISTORTION COMPENSATION IN SEQUENCING GEL-ELECTROPHORESIS SO APPLIED SPECTROSCOPY LA English DT Article DE COMPUTER APPLICATIONS; OPTICS; SPECTROSCOPIC TECHNIQUES ID NUCLEIC-ACID; AUTORADIOGRAPHS; SEPARATION; MOLECULES; COMPUTER AB A computerized method is described for correcting systematic distortion of images from slab gel electrophoresis. Such distortions can lead to misinterpretation of the information contained in the gel. The method is useful for data analysis in one-dimension slab gel electrophoresis where the information is manifested in rectangular shaped bands, such as conventional restriction digest or sequencing gels, and the distortions can be adequately described by continuous low-order polynomial functions. The purpose is to eliminate human skill and judgement from the process and to minimize human interaction, which would be useful in any future attempts to automate the analysis of electrophoretic gels. C1 US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 15 TC 2 Z9 2 U1 0 U2 0 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JAN PY 1992 VL 46 IS 1 BP 136 EP 141 DI 10.1366/0003702924444461 PG 6 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA HB486 UT WOS:A1992HB48600021 ER PT J AU FUNG, KH TANG, IN AF FUNG, KH TANG, IN TI ANALYSIS OF AEROSOL-PARTICLES BY RESONANCE RAMAN-SCATTERING TECHNIQUE SO APPLIED SPECTROSCOPY LA English DT Article DE ANALYSIS FOR AEROSOL PARTICLES; RAMAN SPECTROSCOPY; SPECTROSCOPIC TECHNIQUES ID SPECTROSCOPY AB An analytical technique for aerosol samples which utilizes the resonance Raman effect is described. The aerosol particles were generated at 50 kHz by a vibrating orifice. The nominal particle size was 45-mu-m in diameter. The visible lines (4579, 4765, 4880, and 5145 angstrom) of a continuous argon-ion laser were used as the excitation source. Within the coverage of the laser wavelengths, effects of pre-resonance, resonance, and post-resonance Raman scattering were studied. Under the resonance condition, the enhancement of p-nitrosodimethylaniline is 5.5 x 10(4) when compared to that of nitrate ions. The corresponding concentration of detection limit is 10(-6) molar. RP FUNG, KH (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,DIV ENVIRONM CHEM,UPTON,NY 11973, USA. NR 12 TC 14 Z9 14 U1 0 U2 1 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JAN PY 1992 VL 46 IS 1 BP 159 EP 162 DI 10.1366/0003702924444399 PG 4 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA HB486 UT WOS:A1992HB48600026 ER PT J AU MCGUIRE, JA WANGMANEERAT, B NIEMCZYK, TM HAALAND, DM AF MCGUIRE, JA WANGMANEERAT, B NIEMCZYK, TM HAALAND, DM TI MODIFICATIONS TO A COMMERCIAL INFRARED-EMISSION APPARATUS TO PERMIT QUANTITATIVE APPLICATIONS SO APPLIED SPECTROSCOPY LA English DT Note DE INFRARED; INSTRUMENTATION, INFRARED; SPECTROSCOPIC TECHNIQUES ID SPECTROSCOPY C1 UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 8 TC 8 Z9 8 U1 0 U2 0 PU SOC APPLIED SPECTROSCOPY PI FREDERICK PA 201B BROADWAY ST, FREDERICK, MD 21701 SN 0003-7028 J9 APPL SPECTROSC JI Appl. Spectrosc. PD JAN PY 1992 VL 46 IS 1 BP 178 EP 180 DI 10.1366/0003702924444263 PG 3 WC Instruments & Instrumentation; Spectroscopy SC Instruments & Instrumentation; Spectroscopy GA HB486 UT WOS:A1992HB48600030 ER PT S AU ALVES, CA SMITH, EL WIDRIG, CA PORTER, MD AF ALVES, CA SMITH, EL WIDRIG, CA PORTER, MD BE Golden, WG TI SCANNING TUNNELING MICROSCOPY AND ATOMIC FORCE MICROSCOPY OF NORMAL-ALKANETHIOLATE MONOLAYERS SPONTANEOUSLY ADSORBED AT GOLD SURFACES SO APPLIED SPECTROSCOPY IN MATERIALS SCIENCE II SE Proceedings of SPIE LA English DT Proceedings Paper CT Proceedings of SPIE on Applied Spectroscopy in Materials Science CY JAN 19-24, 1992 CL Los Angeles, CA C1 IOWA STATE UNIV SCI & TECHNOL, US DOE, AMES LAB, AMES, IA 50011 USA. NR 0 TC 2 Z9 2 U1 0 U2 2 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 0-8194-0782-8 J9 PROC SPIE PY 1992 VL 1636 BP 125 EP 128 DI 10.1117/12.59304 PG 4 WC Materials Science, Multidisciplinary; Spectroscopy SC Materials Science; Spectroscopy GA BW13X UT WOS:A1992BW13X00018 ER PT S AU MOORE, DS SCHMIDT, SC AF MOORE, DS SCHMIDT, SC BE Golden, WG TI VIBRATIONAL SPECTROSCOPY IN HIGH-TEMPERATURE DENSE FLUIDS SO APPLIED SPECTROSCOPY IN MATERIALS SCIENCE II SE Proceedings of SPIE LA English DT Proceedings Paper CT Proceedings of SPIE on Applied Spectroscopy in Materials Science CY JAN 19-24, 1992 CL Los Angeles, CA C1 LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87544 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 0-8194-0782-8 J9 PROC SPIE PY 1992 VL 1636 BP 140 EP 146 DI 10.1117/12.59306 PG 7 WC Materials Science, Multidisciplinary; Spectroscopy SC Materials Science; Spectroscopy GA BW13X UT WOS:A1992BW13X00020 ER PT J AU RABIER, PJ GRIEWANK, A AF RABIER, PJ GRIEWANK, A TI GENERIC ASPECTS OF CONVEXIFICATION WITH APPLICATIONS TO THERMODYNAMIC-EQUILIBRIUM SO ARCHIVE FOR RATIONAL MECHANICS AND ANALYSIS LA English DT Article ID STABILITY; EXISTENCE AB This work presents a mathematical analysis of the process of convexification of a smooth function based on singularity theory. The theory developed is applied to the problem of thermodynamic phase equilibrium. The central notion introduced here is that of phase simplex, which we use to discuss phase equilibrium and phase transition in an abstract framework. One of the by-products of the results of this paper is a rigorous proof of Gibbs' Phase Rule for multicomponent systems, in which a well-accepted mathematical notion of genericity is used to account for ostensible exceptions to the rule. Also, many other features known from theoretical or experimental thermodynamics can be rediscovered through purely mathematical arguments from the notions introduced here. Such features include, among other things, the existence of saturation pressures, the existence of multiple or critical points, and the existence of spontaneous or continuous changes in the composition of the phases at phase transitions. C1 ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439. RP RABIER, PJ (reprint author), UNIV PITTSBURGH,INST COMPUTAT MATH & APPLICAT,DEPT MATH & STAT,PITTSBURGH,PA 15260, USA. OI Griewank, Andreas/0000-0001-9839-1473 NR 23 TC 9 Z9 9 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0003-9527 J9 ARCH RATION MECH AN JI Arch. Ration. Mech. Anal. PY 1992 VL 118 IS 4 BP 349 EP 397 DI 10.1007/BF00374979 PG 49 WC Mathematics, Applied; Mechanics SC Mathematics; Mechanics GA JN297 UT WOS:A1992JN29700002 ER PT J AU MAGUIRE, JJ KAGAN, V ACKRELL, BAC SERBINOVA, E PACKER, L AF MAGUIRE, JJ KAGAN, V ACKRELL, BAC SERBINOVA, E PACKER, L TI SUCCINATE UBIQUINONE REDUCTASE LINKED RECYCLING OF ALPHA-TOCOPHEROL IN RECONSTITUTED SYSTEMS AND MITOCHONDRIA - REQUIREMENT FOR REDUCED UBIQUINONE SO ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS LA English DT Article ID VITAMIN-E; MEMBRANES; ANTIOXIDANT C1 UNIV CALIF BERKELEY,DEPT MOLEC & CELL BIOL,BERKELEY,CA 94720. UNIV CALIF SAN FRANCISCO,DEPT BIOCHEM & BIOPHYS,SAN FRANCISCO,CA 94143. RP MAGUIRE, JJ (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV APPL SCI,BERKELEY,CA 94720, USA. FU NCI NIH HHS [CA47597]; NHLBI NIH HHS [HL16251] NR 30 TC 71 Z9 72 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0003-9861 J9 ARCH BIOCHEM BIOPHYS JI Arch. Biochem. Biophys. PD JAN PY 1992 VL 292 IS 1 BP 47 EP 53 DI 10.1016/0003-9861(92)90049-3 PG 7 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA GV110 UT WOS:A1992GV11000007 PM 1727650 ER PT B AU ARMSTRONG, PR HANCOCK, CE SEEM, JE AF ARMSTRONG, PR HANCOCK, CE SEEM, JE BE Geshwiler, M TI COMMERCIAL BUILDING TEMPERATURE RECOVERY .1. DESIGN PROCEDURE BASED ON A STEP RESPONSE MODEL SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 BATTELLE MEM INST,PACIFIC NW LABS,RICHLAND,WA 99352. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 381 EP 396 PN 1 PG 16 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00038 ER PT B AU ARMSTRONG, PR HANCOCK, CE SEEM, JE AF ARMSTRONG, PR HANCOCK, CE SEEM, JE BE Geshwiler, M TI COMMERCIAL BUILDING TEMPERATURE RECOVERY .2. EXPERIMENTS TO VERIFY THE STEP RESPONSE MODEL SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 BATTELLE MEM INST,PACIFIC NW LABS,RICHLAND,WA 99352. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 397 EP 410 PN 1 PG 14 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00039 ER PT B AU RICE, CK AF RICE, CK BE Geshwiler, M TI BENCHMARK PERFORMANCE ANALYSIS OF AN ECM-MODULATED AIR-TO-AIR HEAT-PUMP WITH A RECIPROCATING-COMPRESSOR SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 430 EP 450 PN 1 PG 21 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00042 ER PT J AU KWELLER, ER AF KWELLER, ER BE Geshwiler, M TI DERIVATION OF THE COMBINED ANNUAL EFFICIENCY OF SPACE WATER-HEATERS IN ASHRAE STANDARD 124-1991 SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 US DOE,OFF BLDG ENERGY RES,WASHINGTON,DC. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 665 EP 675 PN 1 PG 11 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00061 ER PT J AU ARASTEH, DK BYARS, N BECK, FA ACEVEDORUIZ, M GRIFFITH, BT AF ARASTEH, DK BYARS, N BECK, FA ACEVEDORUIZ, M GRIFFITH, BT BE Geshwiler, M TI USING INFRARED THERMOGRAPHY FOR THE STUDY OF HEAT-TRANSFER THROUGH BUILDING ENVELOPE COMPONENTS SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 LAWRENCE BERKELEY LAB,WINDOWS & DAYLIGHTING GRP,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 819 EP 824 PN 1 PG 6 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00075 ER PT J AU SULLIVAN, R CHIN, B ARASTEH, D SELKOWITZ, S AF SULLIVAN, R CHIN, B ARASTEH, D SELKOWITZ, S BE Geshwiler, M TI A RESIDENTIAL FENESTRATION PERFORMANCE DESIGN TOOL SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 LAWRENCE BERKELEY LAB,BLDG TECHNOL PROGRAM,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 832 EP 840 PN 1 PG 9 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00077 ER PT J AU AKBARI, H ABDRABOU, A GREENBERG, SE AHMED, M KROMER, JS NOURELDIN, O AF AKBARI, H ABDRABOU, A GREENBERG, SE AHMED, M KROMER, JS NOURELDIN, O BE Geshwiler, M TI METERED END-USE DATA AND ENERGY-CONSERVATION POTENTIALS IN A DEPARTMENT STORE IN CAIRO, EGYPT SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 LAWRENCE BERKELEY LAB,BLDG ENERGY ANAL GRP,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 1171 EP 1179 PN 1 PG 9 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00115 ER PT B AU CONOVER, DR AF CONOVER, DR BE Geshwiler, M TI BUILDING CONSTRUCTION REGULATION IMPACTS ON COMMERCIAL KITCHEN VENTILATION AND EXHAUST SYSTEMS SO ASHRAE TRANSACTIONS, 1992, VOL 98, PT 1 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT Technical and Symposium Papers of the 1992 Winter Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JAN 25-29, 1992 CL ANAHEIM, CA SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 BATTELLE MEM INST,PACIFIC NW LABS,RICHLAND,WA 99352. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 1227 EP 1235 PN 1 PG 9 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA61J UT WOS:A1992BA61J00121 ER PT J AU ROCK, BA BRANDEMUEHL, MJ ANDERSON, R AF ROCK, BA BRANDEMUEHL, MJ ANDERSON, R BE Geshwiler, M TI TRANSFER EFFICIENCY MEASURES FOR THE STUDY OF INDOOR AIR-QUALITY SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 NATL RENEWABLE ENERGY LAB,GOLDEN,CO. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 140 EP 147 PN 2 PG 8 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00015 ER PT J AU MACDONALD, JM HUGHES, PJ MCLAIN, HA AF MACDONALD, JM HUGHES, PJ MCLAIN, HA BE Geshwiler, M TI MARKET POTENTIAL ESTIMATES AND RESEARCH-AND-DEVELOPMENT PLANNING FOR ADVANCED ABSORPTION SYSTEMS FOR LARGE COMMERCIAL BUILDINGS SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 156 EP 164 PN 2 PG 9 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00017 ER PT J AU FISCHER, SK AF FISCHER, SK BE Geshwiler, M TI AN ANALYTICAL SCREENING OF ALTERNATIVES FOR R-502 IN LOW-TEMPERATURE REFRIGERATING APPLICATIONS SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 188 EP 203 PN 2 PG 16 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00021 ER PT J AU PIETTE, MA DEBUEN, O NORDMAN, B AF PIETTE, MA DEBUEN, O NORDMAN, B BE Geshwiler, M TI ENERGY PERFORMANCE OF HEAT-PUMPS IN NEW COMMERCIAL BUILDINGS IN THE PACIFIC-NORTHWEST SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 352 EP 362 PN 2 PG 11 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00037 ER PT J AU CONKLIN, JC VINEYARD, EA AF CONKLIN, JC VINEYARD, EA BE Geshwiler, M TI FLOW BOILING ENHANCEMENT OF R-22 AND A NONAZEOTROPIC MIXTURE OF R-143A AND R-124 USING PERFORATED FOILS SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 402 EP 410 PN 2 PG 9 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00042 ER PT J AU KLEMS, JH AF KLEMS, JH BE Geshwiler, M TI METHOD OF MEASURING NIGHTTIME U-VALUES USING THE MOBILE WINDOW THERMAL TEST FACILITY SO ASHRAE TRANSACTIONS 1992, VOL 98, PT 2 SE ASHRAE TRANSACTIONS LA English DT Proceedings Paper CT 1992 Annual Meeting of the American-Society-of-Heating-Refrigerating-and-Air-Conditioning-Engineers -Incorporated CY JUN 27-JUL 01, 1992 CL BALTIMORE, MD SP AMER SOC HEATING REFRIGERATING & AIR CONDITIONING ENGINEERS INC C1 LAWRENCE BERKELEY LAB,DIV ENERGY & ENVIRONM,BLDG TECHNOL PROGRAM,BERKELEY,CA 94720. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER SOC HEATING, REFRIGERATING AND AIR-CONDITIONING ENGS PI ATLANTA PA 1791 TULLIE CIRCLE NE, ATLANTA, GA 30329 J9 ASHRAE TRAN PY 1992 VL 98 BP 619 EP 629 PN 2 PG 11 WC Construction & Building Technology; Engineering, Mechanical SC Construction & Building Technology; Engineering GA BA39F UT WOS:A1992BA39F00064 ER PT J AU GEHMEYR, M WINKLER, KHA AF GEHMEYR, M WINKLER, KHA TI ON A NEW, ONE-DIMENSIONAL, TIME-DEPENDENT MODEL FOR TURBULENCE AND CONVECTION .1. A BASIC DISCUSSION OF THE MATHEMATICAL-MODEL SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE RADIATION HYDRODYNAMICS; CONVECTION; OVERSHOOTING; SEMI CONVECTION; STELLER STRUCTURE AB A model for turbulence and convection in regimes of very large Reynolds numbers is introduced by coupling an equation for turbulent energy to the equations of radiation hydrodynamics. These in turn are modified by nonlinear terms due to interactions with turbulence. All appearing Reynolds correlations are consistently modeled using a diffusion approximation. The equations of the model are discussed for spherical symmetry. The related equations for stellar structure are derived. In the hydrostatic regime, the free parameters are determined in the limit of a fully developed convection zone by comparison with the usual mixing length formulations. The general properties of the turbulence equation are characterized. Its consistency within the framework of the equations of radiation hydrodynamics is highlighted. It is shown that familiar notions like "semi-convection", "overshooting", and the criterion for convective instability find a natural interpretation in the model. C1 NATL CTR SUPERCOMP APPLICAT, CHAMPAIGN, IL 61820 USA. RP GEHMEYR, M (reprint author), UNIV CALIF LOS ALAMOS SCI LAB, CTR NONLINEAR STUDIES, POB 1663, LOS ALAMOS, NM 87545 USA. NR 20 TC 27 Z9 27 U1 0 U2 0 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD JAN PY 1992 VL 253 IS 1 BP 92 EP 100 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA GY754 UT WOS:A1992GY75400014 ER PT J AU GEHMEYR, M WINKLER, KHA AF GEHMEYR, M WINKLER, KHA TI ON A NEW, ONE-DIMENSIONAL, TIME-DEPENDENT MODEL FOR TURBULENCE AND CONVECTION .2. AN ELEMENTARY COMPARISON OF THE OLD AND THE NEW MODEL SO ASTRONOMY & ASTROPHYSICS LA English DT Article DE TURBULENT-CONVECTIVE TRANSPORT; STELLINGWERF CASTOR THEORY; NONLINEAR RESPONSES ID PULSATING STARS AB A new model for turbulent convective transport in spherical symmetry is compared with a related version suggested by Stellingwerf (1982). Both formulations are compared in detail and crucial differences are highlighted. For various idealized situations the pure temporal and spatial behavior of both models is analyzed. It is shown that the new formulation features characteristic time scales for igniting and decaying turbulent motions, whereas Stellingwerf's model lacks of an intrinsic time scale for the growth of turbulence. For the new model this leads in particular to well defined non-linear response times to rapid changes affecting the turbulent regime. In such circumstances Stellingwerf's model proves to be unable to follow up and settles into a state which is independent of the fast variations. In both the new and Stellingwerf's model one can define characteristic length scales for the non-linear diffusion process. These can be interpreted as parameters for the convective overshooting. It is shown that the new formulation has a much sharper cutoff of the turbulent velocity outside the regions of convective instability than Stellingwerf's. C1 NATL CTR SUPERCOMP APPLICAT, CHAMPAIGN, IL 61820 USA. RP GEHMEYR, M (reprint author), UNIV CALIF LOS ALAMOS SCI LAB, CTR NONLINEAR STUDIES, POB 1663, LOS ALAMOS, NM 87545 USA. NR 11 TC 13 Z9 13 U1 0 U2 0 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD JAN PY 1992 VL 253 IS 1 BP 101 EP 112 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA GY754 UT WOS:A1992GY75400015 ER PT J AU BAME, SJ MCCOMAS, DJ BARRACLOUGH, BL PHILLIPS, JL SOFALY, KJ CHAVEZ, JC GOLDSTEIN, BE SAKURAI, RK AF BAME, SJ MCCOMAS, DJ BARRACLOUGH, BL PHILLIPS, JL SOFALY, KJ CHAVEZ, JC GOLDSTEIN, BE SAKURAI, RK TI THE ULYSSES SOLAR-WIND PLASMA-EXPERIMENT SO ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES LA English DT Article DE SUN, SOLAR POLES; SOLAR WIND, LATITUDINAL VARIATION; INTERPLANETARY HELIOSPHERIC MEDIUM AB The Solar Wind Plasma Experiment on Ulysses is accurately characterizing the bulk flow and internal state conditions of the interplanetary plasma in three dimensions on the way out to Jupiter. These observations will continue over the full range of heliocentric distances and heliographic latitudes reached by the probe after its encounter with Jupiter and consequent deflection out of the ecliptic plane. Solar wind electrons and ions are measured simultaneously with independent curved-plate electrostatic analyzers equipped with multiple Channel Electron Multipliers (CEMs). The CEMs are arranged to detect particles at chosen polar angles from the spacecraft spin axis; resolution in spacecraft azimuth is obtained by timing measurements with the spacecraft Sun clock as the spacecraft spins. Electrons with central energies extending from 0.86 eV to 814 eV are detected at seven polar angles and various combinations of azimuth angle to cover the unit sphere comprehensively, so as to enable computation of the pertinent electron velocity distribution parameters. As the average electron flux level changes with heliocentric distance, command control of the CEM counting intervals is used to extend the dynamic range. Ions are detected between 255 eV/q and 34.4 keV/q using appropriate subsets of 16 CEMs at spin angles designed to provide matrices of counts as a function of energy per charge, azimuth angle, and polar angle centered on the average direction of solar-wind flow. Data matrices are obtained every 4 min when the spacecraft is actively transmitting and every 8 min during data store periods. These matrices contain sufficient energy and angle resolution to permit a detailed characterization of the ion velocity distributions, from which ion bulk parameters are derived. As the average ion flux intensity changes with heliocentric distance, the entrance aperture size is periodically optimized by command selection from a set of seven apertures on a disk driven by a stepping motor. Changes in the average solar wind flow direction relative to the Earth-pointing spacecraft spin axis are accommodated by command selection of the proper measurement matrix from a set of 11 matrices. In a separate mode of operation and under favorable conditions, heavy ions of oxygen, silicon, and iron at various charge levels are resolved. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP BAME, SJ (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544, USA. NR 0 TC 377 Z9 377 U1 1 U2 3 PU EDITIONS PHYSIQUE PI LES ULIS CEDEX PA Z I DE COURTABOEUF AVE 7 AV DU HOGGAR, BP 112, 91944 LES ULIS CEDEX, FRANCE SN 0365-0138 J9 ASTRON ASTROPHYS SUP JI Astron. Astrophys. Suppl. Ser. PD JAN PY 1992 VL 92 IS 2 BP 237 EP 265 PG 29 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA HA437 UT WOS:A1992HA43700003 ER PT J AU MULLER, RA NEWBERG, HJM PENNYPACKER, CR PERLMUTTER, S SASSEEN, TP SMITH, CK AF MULLER, RA NEWBERG, HJM PENNYPACKER, CR PERLMUTTER, S SASSEEN, TP SMITH, CK TI HIGH-RATE FOR TYPE IC SUPERNOVAE SO ASTROPHYSICAL JOURNAL LA English DT Article DE GALAXIES, STELLAR CONTENT; STARS, STATISTICS; SUPERNOVAE, GENERAL; TELESCOPES ID SHAPLEY-AMES GALAXIES; IB AB Using an automated telescope we have detected 20 supernovae in carefully documented observations of nearby galaxies. The supernova rates for late spiral (Sbc, Sc, Scd, and Sd) galaxies, normalized to a blue luminosity of 10(10)L(B). are 0.4, 1.6, and 1.1 h2 per 100 years for Types Ia, Ic, and II supernovae. The rate for Type Ic supernovae is significantly higher than found in previous surveys. The rates are not corrected for detection inefficiencies and do not take into account the indications that the Ic supernovae are fainter on the average than the previous estimates; therefore the true rates are probably higher. The rates are not strongly dependent on the galaxy inclination, in contradiction to previous compilations. If the Milky Way is a late spiral, then the rate of Galactic supernovae is greater than 1 per 30 +/- 7 yr, assuming h = 0.75. This high rate has encouraging consequences for future neutrino and gravitational wave observatories. C1 UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720. RP MULLER, RA (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. RI Smith, Craig/D-7927-2015; Perlmutter, Saul/I-3505-2015 OI Smith, Craig/0000-0001-5829-8303; Perlmutter, Saul/0000-0002-4436-4661 NR 28 TC 48 Z9 48 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD JAN 1 PY 1992 VL 384 IS 1 BP L9 EP L13 DI 10.1086/186251 PN 2 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA GW614 UT WOS:A1992GW61400003 ER PT J AU MIRALLES, JA IBANEZ, JM MARTI, JM PEREZ, A AF MIRALLES, JA IBANEZ, JM MARTI, JM PEREZ, A TI NEUTRINO TRANSPORT IN SUPERNOVAE SO ASTROPHYSICAL LETTERS & COMMUNICATIONS LA English DT Article DE RADIATION HYDRODYNAMICS-STARS; COLLAPSED-SUPERNOVAE AND SUPERNOVAE REMNANTS; GENERAL-DENSE MATTER ID MAGNETIC-MOMENT; COLLAPSE; SN1987A; CURVATURE; LIMITS; CORES C1 FERMI NATL ACCELERATOR LAB,NASA FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. RP MIRALLES, JA (reprint author), UNIV VALENCIA,DEPT FIS TEOR,E-46100 BURJASSOT,SPAIN. RI Perez, Armando/K-6493-2014 NR 27 TC 0 Z9 0 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0888-6512 J9 ASTROPHYS LETT COMM JI Astrophys. Lett. Comm. PY 1992 VL 28 IS 5 BP 223 EP 233 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA HN615 UT WOS:A1992HN61500002 ER PT J AU AUSTIN, MA HOROWITZ, H WIJSMAN, E KRAUSS, RM BRUNZELL, J AF AUSTIN, MA HOROWITZ, H WIJSMAN, E KRAUSS, RM BRUNZELL, J TI BIMODALITY OF PLASMA APOLIPOPROTEIN-B LEVELS IN FAMILIAL COMBINED HYPERLIPIDEMIA SO ATHEROSCLEROSIS LA English DT Article DE APOLIPOPROTEINS; COMMINGLING; HYPERLIPIDEMIA; LOW DENSITY LIPOPROTEINS; GENETICS ID LOW-DENSITY LIPOPROTEINS; CORONARY HEART-DISEASE; SEGREGATION ANALYSIS; CHOLESTEROL LEVELS; SUBCLASS PATTERNS; GENETIC-ANALYSIS; APOPROTEIN-B; HYPERTRIGLYCERIDEMIA; INHERITANCE; ATHEROSCLEROSIS AB To investigate possible genetic influences on plasma apolipoprotein (apo) B levels in familial combined hyperlipidemia (FCHL), commingling analysis was performed on data from seven large kindreds, including 183 individuals. The overall frequency distribution of apo B was skewed and was compatible with the presence of two normally distributed subdistributions (mean values, 117 and 172 mg/dl). The analysis was repeated after stratification of individuals by low density lipoprotein (LDL) subclass phenotype. Among subjects with phenotype A (predominance of large, buoyant LDL), a single apo B distribution was found (mean, 115 mg/dl). Among subjects with phenotype B (predominance of small, dense LDL), the distribution was bimodal, with mean values, 116 and 167 mg/dl, similar to the unstratified data set. Thus the skewing of the overall apo B distribution in FCHL family members may be due to a distinct subset of individuals with phenotype B who are genetically susceptible to even higher elevations of apo B. The higher apo B/phenotype B subjects also showed significantly higher levels of triglyceride and LDL-cholesterol than the lower apo B/phenotype B subjects. The lower apo B/phenotype B subjects had higher triglyceride and lower LDL-cholesterol than the phenotype A subjects. The enhanced information regarding apo B and lipid levels in the three subgroups of individuals identified here may facilitate a better understanding of genetic susceptibility to coronary heart disease. C1 UNIV WASHINGTON,SCH PUBL HLTH & COMMUNITY MED,DEPT EPIDEMIOL,SEATTLE,WA 98195. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV RES MED & RADIAT BIOPHYS,MOLEC MED RES PROGRAM,BERKELEY,CA 94720. RP AUSTIN, MA (reprint author), UNIV WASHINGTON,SCH PUBL HLTH & COMMUNITY MED SC-26,DEPT MED,SEATTLE,WA 98195, USA. FU NHLBI NIH HHS [HL-18574, HL-30086, HL-38760] NR 33 TC 57 Z9 57 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0021-9150 J9 ATHEROSCLEROSIS JI Atherosclerosis PD JAN PY 1992 VL 92 IS 1 BP 67 EP 77 DI 10.1016/0021-9150(92)90011-5 PG 11 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA HF979 UT WOS:A1992HF97900009 PM 1575822 ER PT J AU TIE, XX KAO, CYJ MROZ, EJ AF TIE, XX KAO, CYJ MROZ, EJ TI NET YIELD OF OH, CO, AND O3 FROM THE OXIDATION OF ATMOSPHERIC METHANE SO ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS LA English DT Article DE METHANE OXIDATION; CARBON MONOXIDE; OZONE; HYDROXYL RADICAL; TROPOSPHERE ID CHEMISTRY; MODEL AB The methane oxidation chain (MOC) is the sequence of reactions initiated by the reaction of a CH4 molecule with an OH radical, which results in the net production (or destruction) of OH, CO and O3. We have developed the yield coefficient method to calculate, as functions of latitude and altitude, the monthly average net yield of OH, CO and O3 from the MOC. These yield coefficients are then used to estimate the monthly average production rates of these species from the MOC. Globally, the MOC results in a net annual loss of about 0.22 molecules of OH for every methane molecule destroyed. The average annual yield of CO from the MOC is about 0.82 molecules of CO per molecule of methane destroyed (approximately 550 Tg CO y-1). The methane oxidation chain also produces about 1.15 molecules of ozone for every molecule of methane destroyed. The seasonal cycles, spatial distributions and even the signs of the OH, O3 and CO yield coefficients are sensitive to the assumed input distributions of OH, HO2 and NO(x). The recent re-measurement of the reaction rate of OH + CH4 (Vaghjiani and Ravishankara, 1991, Nature 350, 406-409) suggests that the entire MOC may be running slower than previously thought. The effect of this new measurement is to reduce the global annual average production rates of CO and O3 by about 23%. C1 UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG,LA JOLLA,CA 92093. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. NR 22 TC 14 Z9 14 U1 7 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0004-6981 J9 ATMOS ENVIRON A-GEN PY 1992 VL 26 IS 1 BP 125 EP 136 DI 10.1016/0960-1686(92)90265-M PG 12 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA GP343 UT WOS:A1992GP34300010 ER PT J AU SMITH, BJ POPLE, JA CURTISS, LA RADOM, L AF SMITH, BJ POPLE, JA CURTISS, LA RADOM, L TI THE HEAT OF FORMATION OF FORMALDIMINE SO AUSTRALIAN JOURNAL OF CHEMISTRY LA English DT Article ID INFRARED-SPECTRUM; LASER STARK; METHYLENEIMINE; CH2NH; METHYLENIMINE; SPECTROSCOPY; CH2=NH; BANDS AB Ab initio molecular orbital theory at the G2 level has been used to predict new values for the heat of formation of formaldimine (CH2 = NH): DELTA-H(f)-degrees-0 = 94 +/- 10 kJ mol-1 and DELTA-H(f)-degrees-298 = 86 +/- 10 kJ mol-1. C1 CARNEGIE MELLON UNIV,DEPT CHEM,PITTSBURGH,PA 15213. ARGONNE NATL LAB,DIV CHEM TECHNOL,MAT SCI PROGRAM,ARGONNE,IL 60439. RP SMITH, BJ (reprint author), AUSTRALIAN NATL UNIV,RES SCH CHEM,GPO BOX 4,CANBERRA,ACT 2601,AUSTRALIA. RI Smith, Brian/F-8282-2011 OI Smith, Brian/0000-0003-0498-1910 NR 23 TC 42 Z9 42 U1 1 U2 4 PU C S I R O PUBLICATIONS PI COLLINGWOOD PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD VICTORIA 3066, AUSTRALIA SN 0004-9425 J9 AUST J CHEM JI Aust. J. Chem. PY 1992 VL 45 IS 1 BP 285 EP 288 PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA HA018 UT WOS:A1992HA01800020 ER PT J AU BONHAM, RA BRUCE, MR AF BONHAM, RA BRUCE, MR TI DISSOCIATIVE IONIZATION AND NEUTRAL DISSOCIATION - CF4, A CASE-STUDY SO AUSTRALIAN JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT JOINT SYMP AND SATELLITE MEETING ON ELECTRON AND ION SWARMS AND LOW ENERGY ELECTRON SCATTERING, AT 17TH INTERNATIONAL CONF ON PHYSICS OF ELECTRONIC AND ATOMIC COLLISIONS CY JUL, 1991 CL BOND UNIV, QUEENSLAND, AUSTRALIA HO BOND UNIV ID ELECTRON-IMPACT IONIZATION; CROSS-SECTIONS; SCATTERING; SF6; EXCITATION; EMISSIONS; MOLECULES; NF3; CH4 AB New results for the total neutral dissociation cross section and an estimate of the gross cross section for the production of neutral fluorine by electron impact on CF4 have been obtained by combining previously reported results for the total dissociation cross section and the counting cross section for the total dissociative ionisation. This advancement was made possible by recently reported results for multication formation obtained from coincidence experiments. The estimate of the neutral fluorine production cross section is of the same order of magnitude as the total dissociation cross section itself, a similarity which may explain why CF4 is such an effective etching gas. The available cross section data for electron impact energies between 5 and 200 eV are reviewed. C1 INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405. RP BONHAM, RA (reprint author), ARGONNE NATL LAB,ARGONNE,IL 60439, USA. NR 28 TC 4 Z9 4 U1 0 U2 3 PU C S I R O PUBLICATIONS PI COLLINGWOOD PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD VICTORIA 3066, AUSTRALIA SN 0004-9506 J9 AUST J PHYS JI Aust. J. Phys. PY 1992 VL 45 IS 3 BP 317 EP 324 PG 8 WC Physics, Multidisciplinary SC Physics GA JE279 UT WOS:A1992JE27900005 ER PT J AU MCCURDY, CW AF MCCURDY, CW TI LOW-ENERGY ELECTRON-SCATTERING FROM POLYATOMIC-MOLECULES - THE ROLE OF ELECTRON CORRELATION SO AUSTRALIAN JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT JOINT SYMP AND SATELLITE MEETING ON ELECTRON AND ION SWARMS AND LOW ENERGY ELECTRON SCATTERING, AT 17TH INTERNATIONAL CONF ON PHYSICS OF ELECTRONIC AND ATOMIC COLLISIONS CY JUL, 1991 CL BOND UNIV, QUEENSLAND, AUSTRALIA HO BOND UNIV ID KOHN VARIATIONAL METHOD; CROSS-SECTIONS; COLLISIONS; SILANE; FORMALDEHYDE; METHANE; ETHANE; CH4 AB Until recently the principal barrier to the accurate theoretical description of electronic collisions with polyatomic molecules was the problem of scattering by a nonlocal potential which is arbitrarily asymmetric. The last five or six years have seen the development of numerical techniques capable of solving the potential scattering problem, and the first applications of methods for treating many-body aspects of collisions of electrons with polyatomic molecules a.re beginning to appear in the literature. We describe the complex Kohn method and the use, in scattering calculations, of methods for treating electronic correlation which are standard in bound-state quantum chemistry. As examples of the application of these ideas we present the results of calculations on electron scattering from CH4, SiH4 and C2H6. All of these molecules exhibit Ramsauer-Townsend minima at low impact energies which are entirely correlation effects. RP MCCURDY, CW (reprint author), LAWRENCE LIVERMORE NATL LAB,NATL ENERGY RES SUPERCOMP CTR,L-561,7000 E AVE,POB 5509,LIVERMORE,CA 94550, USA. NR 27 TC 6 Z9 6 U1 0 U2 0 PU C S I R O PUBLICATIONS PI COLLINGWOOD PA 150 OXFORD ST, PO BOX 1139, COLLINGWOOD VICTORIA 3066, AUSTRALIA SN 0004-9506 J9 AUST J PHYS JI Aust. J. Phys. PY 1992 VL 45 IS 3 BP 337 EP 350 PG 14 WC Physics, Multidisciplinary SC Physics GA JE279 UT WOS:A1992JE27900007 ER PT B AU WOS, L AF WOS, L BE Kapur, D TI THE IMPOSSIBILITY OF THE AUTOMATION OF LOGICAL REASONING SO AUTOMATED DEDUCTION - CADE-11 SE LECTURE NOTES IN ARTIFICIAL INTELLIGENCE LA English DT Proceedings Paper CT 11TH INTERNATIONAL CONF ON AUTOMATED DEDUCTION CY JUN 15-18, 1992 CL SARATOGA SPRINGS, NY SP SUNY, INST PROGRAMMING & LOGICS RP WOS, L (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA BERLIN BN 3-540-55602-8 J9 LECT NOTES ARTIF INT PY 1992 VL 607 BP 1 EP 3 PG 3 WC Mathematics, Applied SC Mathematics GA BX77G UT WOS:A1992BX77G00002 ER PT B AU MCCUNE, W WOS, L AF MCCUNE, W WOS, L BE Kapur, D TI EXPERIMENTS IN AUTOMATED DEDUCTION WITH CONDENSED DETACHMENT SO AUTOMATED DEDUCTION - CADE-11 SE LECTURE NOTES IN ARTIFICIAL INTELLIGENCE LA English DT Proceedings Paper CT 11TH INTERNATIONAL CONF ON AUTOMATED DEDUCTION CY JUN 15-18, 1992 CL SARATOGA SPRINGS, NY SP SUNY, INST PROGRAMMING & LOGICS RP MCCUNE, W (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439, USA. NR 0 TC 10 Z9 10 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA BERLIN BN 3-540-55602-8 J9 LECT NOTES ARTIF INT PY 1992 VL 607 BP 209 EP 223 PG 15 WC Mathematics, Applied SC Mathematics GA BX77G UT WOS:A1992BX77G00017 ER PT B AU LUSK, EL MCCUNE, WW SLANEY, J AF LUSK, EL MCCUNE, WW SLANEY, J BE Kapur, D TI ROO - A PARALLEL THEOREM PROVER SO AUTOMATED DEDUCTION - CADE-11 SE LECTURE NOTES IN ARTIFICIAL INTELLIGENCE LA English DT Proceedings Paper CT 11TH INTERNATIONAL CONF ON AUTOMATED DEDUCTION CY JUN 15-18, 1992 CL SARATOGA SPRINGS, NY SP SUNY, INST PROGRAMMING & LOGICS RP LUSK, EL (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA BERLIN BN 3-540-55602-8 J9 LECT NOTES ARTIF INT PY 1992 VL 607 BP 731 EP 734 PG 4 WC Mathematics, Applied SC Mathematics GA BX77G UT WOS:A1992BX77G00062 ER PT B AU LUSK, E WOS, L AF LUSK, E WOS, L BE Kapur, D TI BENCHMARK PROBLEMS IN WHICH EQUALITY PLAYS THE MAJOR ROLE SO AUTOMATED DEDUCTION - CADE-11 SE LECTURE NOTES IN ARTIFICIAL INTELLIGENCE LA English DT Proceedings Paper CT 11TH INTERNATIONAL CONF ON AUTOMATED DEDUCTION CY JUN 15-18, 1992 CL SARATOGA SPRINGS, NY SP SUNY, INST PROGRAMMING & LOGICS RP LUSK, E (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA BERLIN BN 3-540-55602-8 J9 LECT NOTES ARTIF INT PY 1992 VL 607 BP 781 EP 785 PG 5 WC Mathematics, Applied SC Mathematics GA BX77G UT WOS:A1992BX77G00073 ER PT B AU GOLDSTEIN, CI AF GOLDSTEIN, CI BE Miller, JJH TI PRECONDITIONED ITERATIVE METHODS FOR CONVECTION DOMINATED CONVECTION-DIFFUSION PROBLEMS SO BAIL VI: PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON BOUNDARY AND INTERIOR LAYERS - COMPUTATIONAL AND ASYMPTOTIC METHODS LA English DT Proceedings Paper CT 6th International Conference on Boundary and Interior Layers - Computational and Asymptotic Methods CY AUG 18-20, 1992 CL COPPER MT, CO C1 BROOKHAVEN NATL LAB,DAS,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FRONT RANGE PRESS INC PI COPPER MT PA PO BOX 3162, COPPER MT, CO 80443-3162 BN 0-9631678-1-2 PY 1992 BP 83 EP 84 PG 2 WC Mathematics, Applied; Mechanics SC Mathematics; Mechanics GA BA43G UT WOS:A1992BA43G00030 ER PT J AU ROBERTSONDEMERS, KA MILLER, DL AF ROBERTSONDEMERS, KA MILLER, DL TI MEASUREMENT OF MAGNETICALLY INDUCED ELECTRIC-FIELDS IN CONDUCTIVE MEDIA NEAR A 60-HZ CURRENT-CARRYING WIRE SO BIOELECTROMAGNETICS LA English DT Article DE ELF DOSIMETRY; INDUCED CURRENTS; ELECTRIC BLANKETS AB Electric fields induced in a conductive body by the magnetic field of a current-carrying wire were analyzed theoretically and experimentally to assess the dosimetric importance of highly nonuniform, field-exposure conditions. Experimentation revealed that a 60-Hz magnetic field was inversely proportional to the radius of a wire bundle carrying 100 A within a 0.5-m2 test area. A miniaturized electric field probe was used to measure the electric fields induced in 5-cm-deep, saline-filled models. In the theoretical analysis, numerical estimates of induced fields were made by a spreadsheet method. The theoretical calculations and the measured values of induced electric fields were generally in good agreement. The induced fields were in a plane perpendicular to a vertically incident magnetic field; the maximally induced fields were in areas nearest the wire bundle. The strength of the induced field increased with model size: from 96-mu-V/cm in a 10 x 10 cm model to 176-mu-V/cm in a 40 x 40 cm model. The strength of the field induced in a 20 x 20 cm model decreased with increasing model-to-wire spacing: from 132-mu-V/cm for a 1-cm spacing (2-mT maximum, incident field) to 50-mu-V/cm for a 6-cm spacing (0.33-mT maximum). The results indicate that increases in local values of nonuniformly incident fields produce relatively small increases in induced electric fields. This finding may be important in dosimetric consideration of circumstances, such as use of electric blankets, in which fields of low average strength are accompanied by intense local fields. C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0197-8462 J9 BIOELECTROMAGNETICS JI Bioelectromagnetics PY 1992 VL 13 IS 3 BP 209 EP 221 DI 10.1002/bem.2250130305 PG 13 WC Biology; Biophysics SC Life Sciences & Biomedicine - Other Topics; Biophysics GA HP381 UT WOS:A1992HP38100004 PM 1590820 ER PT J AU LOVELY, RH CREIM, JA KAUNE, WT MILLER, MC PHILLIPS, RD ANDERSON, LE AF LOVELY, RH CREIM, JA KAUNE, WT MILLER, MC PHILLIPS, RD ANDERSON, LE TI RATS ARE NOT AVERSIVE WHEN EXPOSED TO 60-HZ MAGNETIC-FIELDS AT 3.03 MT SO BIOELECTROMAGNETICS LA English DT Article DE 60-HZ ELECTRIC FIELDS; INDUCED BODY CURRENTS; AVERSIVE BEHAVIOR ID ELECTRIC-FIELDS; MODELS; SWINE; MICE AB Thirty-two male rats were tested in two replicates of an experiment to determine whether body currents induced by 60-Hz magnetic fields might lead to avoidance behavior comparable to that which results from exposure to strong 60-Hz electric fields. The test apparatus was a two-compartment Plexiglas(R) shuttlebox enclosed in a sound-attenuating plywood chamber, which in turn was encompassed by two copper bus bars that, when energized, served as a source of 60-Hz magnetic fields. Location of the rat, and traverse activity in the shuttlebox were monitored by nine infra-red photo detectors equally spaced along the length of the apparatus. Rats were divided into 2 groups: 1 group of rats (n = 8 per group per replicate) was sham exposed while rats in the other group (n = 8 per group per replicate) were exposed to a 3.03 mT (30.3 G), 60-Hz magnetic field whenever they traversed to or were located on the side (L or R) predetermined as the exposed side. To control artifact incident to side preference, the side exposed (L or R) was alternated over the exposed rats. Each rat was tested individually in a 1-h session. A 2-factor ANOVA (exposed vs. control, replicate 1 vs. replicate 2) failed to reveal any significant effects due to either factor or to an interaction between factors. These data demonstrate that rats do not avoid exposure to 60-Hz magnetic fields at a flux density of 3.03 mT and further imply that the avoidance by rats of high level 60-Hz electric fields is mediated by something other than the internal body currents induced by the exposure. C1 PACIFIC NW LAB, CTR LIFE SCI, DEPT BIOL & CHEM, RICHLAND, WA 99352 USA. NR 27 TC 8 Z9 8 U1 0 U2 1 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0197-8462 J9 BIOELECTROMAGNETICS JI Bioelectromagnetics PY 1992 VL 13 IS 5 BP 351 EP 362 DI 10.1002/bem.2250130503 PG 12 WC Biology; Biophysics SC Life Sciences & Biomedicine - Other Topics; Biophysics GA JM999 UT WOS:A1992JM99900002 PM 1445417 ER PT J AU TENFORDE, TS AF TENFORDE, TS TI MICROSCOPIC DOSIMETRY OF EXTREMELY-LOW-FREQUENCY ELECTRIC AND MAGNETIC-FIELDS SO BIOELECTROMAGNETICS LA English DT Article ID CYCLOTRON-RESONANCE; ELECTROMAGNETIC-FIELDS; PHASE-TRANSITION; PERMEABILITY; MECHANISM; CELLS RP TENFORDE, TS (reprint author), PACIFIC NW LAB, CTR LIFE SCI K150, POB 999, RICHLAND, WA 99352 USA. NR 40 TC 1 Z9 1 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0197-8462 J9 BIOELECTROMAGNETICS JI Bioelectromagnetics PY 1992 SU 1 BP 61 EP 66 PG 6 WC Biology; Biophysics SC Life Sciences & Biomedicine - Other Topics; Biophysics GA KK165 UT WOS:A1992KK16500006 ER PT J AU BRADBURY, EM AF BRADBURY, EM TI REVERSIBLE HISTONE MODIFICATIONS AND THE CHROMOSOME CELL-CYCLE SO BIOESSAYS LA English DT Review ID DNA TOPOISOMERASE-II; NUCLEOSOME CORE PARTICLE; TRANSCRIPTIONALLY ACTIVE CHROMATIN; LINKING NUMBER CHANGE; MITOTIC CHROMOSOMES; PHYSARUM-POLYCEPHALUM; MOLECULAR-BASIS; G2 PHASE; CONDENSATION; PHOSPHORYLATION AB During the eukaryotic cell cycle, chromosomes undergo large structural transitions and spatial rearrangements that are associated with the major cell functions of genome replication, transcription and chromosome condensation to metaphase chromosomes. Eukaryotic cells have evolved cell cycle dependent processes that modulate histone:DNA interactions in chromosomes. These are; i) acetylations of lysines; ii) phosphorylations of serines and threonines and iii) ubiquitinations of lysines. All of these reversible modifications are contained in the well-defined very basic N- and C-terminal domains of histones. Acetylations and phosphorylations markedly affect the charge densities of these domains whereas ubiquitination adds a bulky globular protein, ubiquitin, to lysines in the C-terminal tails of H2A and H2B. Histone acetylations are strictly associated with genome replication and transcription; histone H1 and H3 phosphorylations correlate with the process of chromosome condensation. The subunits of histone H1 kinase have now been shown to be cyclins and the p34CDC2 kinase product of the cell cycle control gene CDC2. It is probable that all of the processes that control chromosome structure:function relationships are also involved in the control of the cell cycle. C1 UNIV CALIF LOS ALAMOS SCI LAB,DIV LIFE SCI,LOS ALAMOS,NM 87545. RP BRADBURY, EM (reprint author), UNIV CALIF DAVIS,SCH MED,DEPT BIOL CHEM,DAVIS,CA 95616, USA. FU NIGMS NIH HHS [GM-26901] NR 64 TC 338 Z9 347 U1 0 U2 13 PU COMPANY OF BIOLOGISTS LTD PI CAMBRIDGE PA BIDDER BUILDING CAMBRIDGE COMMERCIAL PARK COWLEY RD, CAMBRIDGE, CAMBS, ENGLAND CB4 4DL SN 0265-9247 J9 BIOESSAYS JI Bioessays PD JAN PY 1992 VL 14 IS 1 BP 9 EP 16 PG 8 WC Biochemistry & Molecular Biology; Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics GA HB894 UT WOS:A1992HB89400002 PM 1312335 ER PT B AU BUDINGER, TF AF BUDINGER, TF BE MAGIN, RL LIBURDY, RP PERSSON, B TI EMERGING NUCLEAR-MAGNETIC-RESONANCE TECHNOLOGIES - HEALTH AND SAFETY SO BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Proceedings Paper CT CONF ON BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY CY MAY 15-17, 1991 CL BETHESDA, MD SP NEW YORK ACAD SCI, NCI, FDA, BERLEX LABS, BRISTOL MYERS SQUIBB PHARM RES INST, SOC MAGNET RESONANCE IMAGING RP BUDINGER, TF (reprint author), LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 0 TC 18 Z9 18 U1 0 U2 0 PU NEW YORK ACAD SCIENCES PI NEW YORK PA NEW YORK BN 0-89766-698-4 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1992 VL 649 BP 1 EP 18 DI 10.1111/j.1749-6632.1992.tb49592.x PG 18 WC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy SC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy GA BW41Q UT WOS:A1992BW41Q00001 PM 1580484 ER PT B AU LIBURDY, RP AF LIBURDY, RP BE MAGIN, RL LIBURDY, RP PERSSON, B TI BIOLOGICAL INTERACTIONS OF CELLULAR-SYSTEMS WITH TIME-VARYING MAGNETIC-FIELDS SO BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Proceedings Paper CT CONF ON BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY CY MAY 15-17, 1991 CL BETHESDA, MD SP NEW YORK ACAD SCI, NCI, FDA, BERLEX LABS, BRISTOL MYERS SQUIBB PHARM RES INST, SOC MAGNET RESONANCE IMAGING RP LIBURDY, RP (reprint author), LAWRENCE BERKELEY LAB,DIV RES MED & RADIAT BIOPHYS,BIOELECTROMAGNET RES GRP,BERKELEY,CA 94720, USA. FU NCI NIH HHS [CA53711] NR 0 TC 42 Z9 42 U1 0 U2 0 PU NEW YORK ACAD SCIENCES PI NEW YORK PA NEW YORK BN 0-89766-698-4 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1992 VL 649 BP 74 EP 95 DI 10.1111/j.1749-6632.1992.tb49599.x PG 22 WC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy SC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy GA BW41Q UT WOS:A1992BW41Q00007 PM 1580520 ER PT B AU LIBURDY, RP DEMANINCOR, DJ ROOS, MS BRENNAN, KM AF LIBURDY, RP DEMANINCOR, DJ ROOS, MS BRENNAN, KM BE MAGIN, RL LIBURDY, RP PERSSON, B TI PERMEABILITY OF THE BLOOD-BRAIN-BARRIER OF THE RAT IS NOT SIGNIFICANTLY ALTERED BY NMR EXPOSURE SO BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY SE ANNALS OF THE NEW YORK ACADEMY OF SCIENCES LA English DT Proceedings Paper CT CONF ON BIOLOGICAL EFFECTS AND SAFETY ASPECTS OF NUCLEAR MAGNETIC RESONANCE IMAGING AND SPECTROSCOPY CY MAY 15-17, 1991 CL BETHESDA, MD SP NEW YORK ACAD SCI, NCI, FDA, BERLEX LABS, BRISTOL MYERS SQUIBB PHARM RES INST, SOC MAGNET RESONANCE IMAGING RP LIBURDY, RP (reprint author), LAWRENCE BERKELEY LAB,BIOELECTROMAGNET RES GRP,BERKELEY,CA 94720, USA. NR 0 TC 6 Z9 7 U1 0 U2 0 PU NEW YORK ACAD SCIENCES PI NEW YORK PA NEW YORK BN 0-89766-698-4 J9 ANN NY ACAD SCI JI Ann.NY Acad.Sci. PY 1992 VL 649 BP 345 EP 349 DI 10.1111/j.1749-6632.1992.tb49626.x PG 5 WC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy SC Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy GA BW41Q UT WOS:A1992BW41Q00029 PM 1580507 ER PT J AU WYMAN, CE SPINDLER, DD GROHMANN, K AF WYMAN, CE SPINDLER, DD GROHMANN, K TI SIMULTANEOUS SACCHARIFICATION AND FERMENTATION OF SEVERAL LIGNOCELLULOSIC FEEDSTOCKS TO FUEL ETHANOL SO BIOMASS & BIOENERGY LA English DT Article DE SIMULTANEOUS SACCHARIFICATION AND FERMENTATION; LIGNOCELLULOSIC BIOMASS; ETHANOL, WOODY CROPS; HERBACEOUS CROPS; AGRICULTURAL RESIDUES AB When ethanol fuel is produced from lignocellulosic materials such as wood, herbaceous plants, and agricultural and forestry wastes, its use as a transportation fuel reduces dependence on imported petroleum, decreases the balance of trade deficit, improves urban air quality, contributes no net carbon dioxide to the atmosphere, and provides new markets for depressed farm economies. The simultaneous saccharification and fermentation (SSF) process is a favored option for conversion of the lignocellulosic biomass into ethanol because it provides enhanced rates, yields, and concentrations of ethanol with less capital investment compared to competing processes. In this study, the performance of four woody crops (aspen, two hybrids of populus, and a native strain of sweetgum), three herbaceous crops (switchgrass, weeping love grass, and Sericea lespedeza), and three agricultural residues (corn cobs, corn stover, and wheat straw) is reported for the SSF process. For the pretreatment conditions employed for these feedstocks, excellent results were obtained for corn cobs followed by corn stover, wheat straw, weeping love grass, the woody crops, and switchgrass. Only the legume S. lespedeza did not give good ethanol yields for the pretreatment conditions chosen. RP WYMAN, CE (reprint author), NATL RENEWABLE ENERGY LAB,DIV ALTERNAT FUELS,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 0 TC 81 Z9 90 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0961-9534 J9 BIOMASS BIOENERG JI Biomass Bioenerg. PY 1992 VL 3 IS 5 BP 301 EP 307 DI 10.1016/0961-9534(92)90001-7 PG 7 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA KC333 UT WOS:A1992KC33300001 ER PT J AU MILNE, TA CHUM, HL AGBLEVOR, F JOHNSON, DK AF MILNE, TA CHUM, HL AGBLEVOR, F JOHNSON, DK TI STANDARDIZED ANALYTICAL METHODS SO BIOMASS & BIOENERGY LA English DT Article; Proceedings Paper CT SEMINAR ON INTERNATIONAL ENERGY AGENCY BIOENERGY AGREEMENT PROGRESS AND ACHIEVEMENTS 1989-1991 CY APR 02-03, 1992 CL EDINBURGH, SCOTLAND AB The International Energy Agency -- Bioenergy Agreement - Biomass Conversion Annex VII --Standardized Analytical Methods Activity has been ongoing for the past three years. Participating countries are Canada, Finland, the Netherlands, New Zealand, Norway, Sweden, and the United States. The goal is to provide researchers and technology developers with information on reliable methods in use, or proposed, for characterizing feedstocks, process intermediates, and end products from biomass conversion to fuels, energy-intensive chemicals, and electric power. Accurate compositional analyses of biomass feedstocks and lignins are important for the commercialization of these technologies. This international activity provided and tested selected analytical methods for use in the characterization of a wide range of biomass feedstocks and lignins. Two round robins were conducted, one on the analysis of whole biomass feedstocks and the other on analysis of lignins. The biomass feedstock round robin utilized four biomass samples very carefully prepared by the National Institute of Science and Technology (NIST). This round robin tested a specified procedure aimed at providing a summative analysis of the materials. The lignin round robin utilized five commercial grade lignins, and a ball milled enzyme lignin. A very wide range of techniques were used to characterize the lignins, permitting comparison of results from different methods. The results of the two round robins were presented and discussed at the IEA Pre-symposium on Modem Methods of Analyses of Wood, Annual Plants, and Lignins, in New Orleans, USA, November 1991, attended by 110 scientists from over 20 countries. RP MILNE, TA (reprint author), NATL RENEWABLE ENERGY LAB,1617 COLE BLVD,GOLDEN,CO 80401, USA. RI Johnson, David/G-4959-2011 OI Johnson, David/0000-0003-4815-8782 NR 0 TC 59 Z9 59 U1 2 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0961-9534 J9 BIOMASS BIOENERG JI Biomass Bioenerg. PY 1992 VL 2 IS 1-6 BP 341 EP 366 DI 10.1016/0961-9534(92)90109-4 PG 26 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA JD405 UT WOS:A1992JD40500028 ER PT B AU BULL, SR AF BULL, SR BE Grassi, G Collina, A Zibetta, H TI THE US-DOE ALTERNATIVE FUELS PROGRAM SO BIOMASS FOR ENERGY, INDUSTRY AND ENVIRONMENT: 6TH E C CONFERENCE LA English DT Proceedings Paper CT 6TH EUROPEAN CONF ON BIOMASS FOR ENERGY, INDUSTRY AND ENVIRONMENT CY APR 22-26, 1991 CL ATHENS, GREECE SP COMMISS EUROPEAN COMMUNITIES C1 SOLAR ENERGY RES INST, DIV FUELS & CHEM RES & ENGN, GOLDEN, CO 80401 USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER APPL SCI PUBL LTD PI BARKING PA CROWN HOUSE, LINTON ROAD, BARKING IG11 8JU, ESSEX, ENGLAND BN 1-85166-730-X PY 1992 BP 1032 EP 1038 PG 7 WC Agronomy; Energy & Fuels; Environmental Sciences; Forestry SC Agriculture; Energy & Fuels; Environmental Sciences & Ecology; Forestry GA BW92H UT WOS:A1992BW92H00180 ER PT J AU PAVLOVICKENTERA, V CLEMONS, GK BILJANOVICPAUNOVIC, L MARISAVLJEVIC, D LEZAIC, V POKRAJAC, M DJUKANOVIC, L AF PAVLOVICKENTERA, V CLEMONS, GK BILJANOVICPAUNOVIC, L MARISAVLJEVIC, D LEZAIC, V POKRAJAC, M DJUKANOVIC, L TI SERUM ERYTHROPOIETIN LEVELS IN HEMODIALYZED PATIENTS AFTER ADMINISTRATION OF RECOMBINANT-HUMAN-ERYTHROPOIETIN SO BIOMEDICINE & PHARMACOTHERAPY LA English DT Article DE SERUM ERYTHROPOIETIN LEVEL; CHRONIC RENAL FAILURE; RHUEPO THERAPY ID CHRONIC-RENAL-FAILURE; BONE-MARROW; PHARMACOKINETICS; ANEMIA AB In anemic patients on regular hemodialysis (HD), correction of anemia with recombinant human erythropoietin (rHuEpo) administered intravenously (iv) or subcutaneously (sc) was followed over a 2-month period. Monitoring serum Epo post-dose concentrations after the first iv rHuEpo injection and following another regular injection after 2 months of therapy with rHuEpo iv in 9 patients showed that the Epo elimination half-life was reduced from 7.48 h to 4.68 h. In the same patients the initially low percentage of erythroblasts and mature erythroid progenitors increased during 2 months of rHuEpo therapy. Because Epo molecules bound to Epo receptors are internalized in target cells we suggest that the expansion of the Epo responsive cell pool could explain the shorted Epo elimination time after 2 months of rHuEpo treatment. By monitoring serum Epo concentration following sc rHuEpo injection in 7 HD patients it was found that the modest increase in serum Epo levels (30-60 mU/ml) was sufficient to correct anemia. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV BELGRADE,CTR CLIN,INST HEMATOL,BELGRADE,YUGOSLAVIA. UNIV BELGRADE,CTR CLIN,INST NEPHROL,BELGRADE,YUGOSLAVIA. FAC PHARM BELGRADE,DEPT PHARMACOKINET,BELGRADE,YUGOSLAVIA. RP PAVLOVICKENTERA, V (reprint author), INST MED RES,POB 721,YU-11001 BELGRADE,YUGOSLAVIA. FU NHLBI NIH HHS [HL 22469] NR 21 TC 9 Z9 9 U1 0 U2 0 PU EDITIONS SCIENTIFIQUES ELSEVIER PI PARIS CEDEX 15 PA 141 RUE JAVEL, 75747 PARIS CEDEX 15, FRANCE SN 0753-3322 J9 BIOMED PHARMACOTHER JI Biomed. Pharmacother. PY 1992 VL 46 IS 1 BP 37 EP 43 DI 10.1016/0753-3322(92)90068-I PG 7 WC Medicine, Research & Experimental; Pharmacology & Pharmacy SC Research & Experimental Medicine; Pharmacology & Pharmacy GA HG079 UT WOS:A1992HG07900007 PM 1421034 ER PT J AU SAXTON, MJ AF SAXTON, MJ TI LATERAL DIFFUSION AND AGGREGATION - A MONTE-CARLO STUDY SO BIOPHYSICAL JOURNAL LA English DT Article ID CLUSTER-CLUSTER AGGREGATION; FLUORESCENCE CORRELATION SPECTROSCOPY; ROTATIONAL DIFFUSION; LIMITED AGGREGATION; MEMBRANES; MODEL; ERYTHROCYTES; BINDING; CONNECTIVITY; ARCHIPELAGO AB Aggregation in a lipid bilayer is modeled as cluster-cluster aggregation on a square lattice. In the model, clusters carry out a random walk on the lattice, with a diffusion coefficient inversely proportional to mass. On contact, they adhere with a prescribed probability, rigidly and irreversibly. Monte Carlo calculations show that, as expected, rotational diffusion of the aggregating species is highly sensitive to the initial stages of aggregation. Lateral diffusion of an inert tracer obstructed by the aggregate is a sensitive probe of the later stages of aggregation. Cluster-cluster aggregates are much more effective barriers to lateral diffusion of an inert tracer than the same area fraction of random point obstacles is, but random point obstacles are more effective barriers than the same area fraction of compact obstacles. The effectiveness of aggregates as obstacles is discussed in terms of particle-particle correlation functions and fractal dimensions. Results are applicable to aggregation of membrane proteins, and at least qualitatively to aggregation of gel-phase lipid during lateral phase separation. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CHEM BIODYNAM LAB,BERKELEY,CA 94720. RP SAXTON, MJ (reprint author), UNIV CALIF DAVIS,INST THEORET DYNAM,DAVIS,CA 95616, USA. FU NIGMS NIH HHS [GM-38133] NR 45 TC 60 Z9 60 U1 0 U2 9 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD JAN PY 1992 VL 61 IS 1 BP 119 EP 128 PG 10 WC Biophysics SC Biophysics GA HA811 UT WOS:A1992HA81100012 PM 1540685 ER PT J AU MOELLER, KD WILLIAMS, GP STEINHAUSER, S HIRSCHMUGL, C SMITH, JC AF MOELLER, KD WILLIAMS, GP STEINHAUSER, S HIRSCHMUGL, C SMITH, JC TI HYDRATION-DEPENDENT FAR-INFRARED ABSORPTION IN LYSOZYME DETECTED USING SYNCHROTRON RADIATION SO BIOPHYSICAL JOURNAL LA English DT Note ID INELASTIC NEUTRON-SCATTERING; DYNAMICS; MYOGLOBIN; PROTEINS AB Using the National Synchrotron Light Source (NSLS) at Brookhaven far-infared absorption in the frequency range 15-45 cm-1 was detected in samples of lysozyme at different hydrations and in water. The absorption is due to the presence of low-frequency (picosecond timescale) motions in the samples, such as are calculated in molecular dynamics simulations. The form of the transmission profile is temperature independent but varies significantly with the degree of hydration of the protein. At higher hydrations the profile resembles closely that of pure water in the region 20-45 cm-1. At a low hydration marked differences are seen with, in particular, the appearance of a transmission minimum at 19 cm-1. The possible origins of the hydration dependence are discussed. The results demonstrate the usefulness of long-wavelength synchrotron radiation for the characterisation of biologically-important low-frequency motions in protein samples. C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. USA,AMCCOM,PICATINNY ARSENAL,NJ 07806. CENS,DEPT BIOL CELLULAIRE & MOLEC,BIOPHYS PROT & MEMBRANES SECT,F-91191 GIF SUR YVETTE,FRANCE. RP MOELLER, KD (reprint author), FAIRLEIGH DICKINSON UNIV,DEPT PHYS,TEANECK,NJ 07666, USA. RI smith, jeremy/B-7287-2012 OI smith, jeremy/0000-0002-2978-3227 NR 14 TC 18 Z9 18 U1 2 U2 7 PU BIOPHYSICAL SOCIETY PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0006-3495 J9 BIOPHYS J JI Biophys. J. PD JAN PY 1992 VL 61 IS 1 BP 276 EP 280 PG 5 WC Biophysics SC Biophysics GA HA811 UT WOS:A1992HA81100025 PM 1540696 ER PT J AU JOUTZ, FL AF JOUTZ, FL TI BIOMASS FUEL SUPPLY - A METHODOLOGY FOR DETERMINING MARGINAL COSTS SO BIORESOURCE TECHNOLOGY LA English DT Article DE WOOD-FIRED POWER PLANT; ECONOMIC FEASIBILITY STUDIES; MARGINAL COST; FUEL SUPPLY ID ENERGY AB Energy from biomass fuels is used in the electric utility, lumber and wood products, and paper and pulp industries. The objective of this paper is to discuss a method of constructing marginal cost curves for biomass fuel where there are multiple sources differing in availability. Most research has focused on the feasibility of a single source of fuel to supply a plant. A least-cost approach would consider wood fuel supplies from several sources. The methodology for determining the marginal cost of biomass fuel supply for a wood-fired electrical generating plant is described and an example is provided. Marginal cost curves allow decision-makers to 'observe' the effective cost to supply power plants. The methodology is useful because it frees feasibility studies from artifical one-source assumptions. C1 US DOE,OFF STAT STAND,DIV MODEL QUAL ASSURANCE EIA-72,WASHINGTON,DC 20585. RP JOUTZ, FL (reprint author), GEORGE WASHINGTON UNIV,DEPT ECON,WASHINGTON,DC 20015, USA. NR 18 TC 14 Z9 14 U1 2 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0960-8524 J9 BIORESOURCE TECHNOL JI Bioresour. Technol. PY 1992 VL 39 IS 2 BP 179 EP 183 DI 10.1016/0960-8524(92)90138-N PG 5 WC Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels SC Agriculture; Biotechnology & Applied Microbiology; Energy & Fuels GA GQ108 UT WOS:A1992GQ10800012 ER PT J AU DAZEVEDO, EF FORSYTH, PA TANG, WP AF DAZEVEDO, EF FORSYTH, PA TANG, WP TI TOWARDS A COST-EFFECTIVE ILU PRECONDITIONER WITH HIGH-LEVEL FILL SO BIT LA English DT Article DE MINIMUM DISCARDED FILL (MDF); THRESHOLD MDF; MINIMUM UPDATING MATRIX; MATRIX ORDERING; PRECONDITIONED CONJUGATE GRADIENT ID LINEAR-SYSTEMS; ITERATIVE SOLUTION; ALGORITHM; EQUATIONS; MATRIX AB There has been increased interest in the effect of the ordering of the unknowns on Preconditioned Conjugate Gradient (PCG) methods. A recently proposed Minimum Discarded Fill (MDF) ordering technique is effective in finding good ILU(l) preconditioners, especially for problems arising from unstructured finite element grids. This algorithm can identify anisotropy in complicated physical structures and orders the unknowns in an appropriate direction. The MDF technique may be viewed as an analogue of the minimum deficiency algorithm in sparse matrix technology, and hence is expensive to compute for high level ILU(l) preconditioners. In this work, several less expensive variants of the MDF technique are explored to produce cost-effective ILU preconditioners. The Threshold MDF ordering combines MDF ideas with drop tolerance techniques to identify the sparsity pattern in the ILU preconditioners. The Minimum Update Matrix (MUM) ordering technique is a simplification of the MDF ordering and is an analogue of the minimum degree algorithm. The MUM ordering method is especially effective for large matrices arising from Navier-Stokes problems. C1 OAK RIDGE NATL LAB,MATH SCI SECT,OAK RIDGE,TN 37831. UNIV WATERLOO,DEPT COMP SCI,WATERLOO N2L 3G1,ONTARIO,CANADA. NR 37 TC 45 Z9 45 U1 0 U2 2 PU BIT FOUNDATION PI COPENHAGEN PA POSTBOX 113, DK-1004 COPENHAGEN, DENMARK SN 0006-3835 J9 BIT JI Bit PY 1992 VL 32 IS 3 BP 442 EP 463 DI 10.1007/BF02074880 PG 22 WC Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA JR592 UT WOS:A1992JR59200006 ER PT J AU LYNESS, JN SOREVIK, T AF LYNESS, JN SOREVIK, T TI AN ALGORITHM FOR FINDING OPTIMAL INTEGRATION LATTICES OF COMPOSITE ORDER SO BIT LA English DT Article DE MULTIDIMENSIONAL QUADRATURE; LATTICE RULES; GOOD LATTICES; NUMBER THEORETIC RULES; FIGURE OF MERIT; HYPERCUBE; PERIODIC FUNCTIONS ID RULES AB In this paper we describe a search algorithm that can be used to determine good lattices of order N when N = N(L)N(R) has two nontrivial integer factors. This algorithm is based on relationships between an integer lattice A(R) of order N(R) and its various sublattices all of order N. Using this we have determined all four dimensional good lattices of order 599 or less. Our list has 23 entries. C1 ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439. NR 11 TC 7 Z9 7 U1 0 U2 0 PU BIT FOUNDATION PI COPENHAGEN PA POSTBOX 113, DK-1004 COPENHAGEN, DENMARK SN 0006-3835 J9 BIT JI Bit PY 1992 VL 32 IS 4 BP 665 EP 675 DI 10.1007/BF01994849 PG 11 WC Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA KF963 UT WOS:A1992KF96300011 ER PT J AU CERIANI, RL PETERSON, JA BLANK, EW LAMPORT, DTA AF CERIANI, RL PETERSON, JA BLANK, EW LAMPORT, DTA TI EPITOPE EXPRESSION ON THE BREAST EPITHELIAL MUCIN SO BREAST CANCER RESEARCH AND TREATMENT LA English DT Article DE BREAST EPITHELIAL MUCIN; EPITOPES; GLYCOPROTEINS; MONOCLONAL ANTIBODIES; PROTEIN GLYCOSYLATION; TANDEM REPEAT PEPTIDES ID MILK-FAT GLOBULE; MONOCLONAL-ANTIBODIES; CELL-SURFACE; MOLECULAR-CLONING; MAMMARY; CANCER; CARCINOMA; ANTIGENS; PROTEIN; MEMBRANE AB Multiple epitope expression on the breast epithelial mucin was explored using a panel of monoclonal antibodies (MoAbs) created against milk and breast tissue preparations, against blood group determinants, and against other non-breast epithelial mucins. Since the breast epithelial mucin is now used in both diagnostic and therapeutic modalities for breast cancer, and also because altered or incomplete glycosylation in varying degrees is expected in breast carcinoma tissue, the antigenic target used here was the native mucin and sequential stages of deglycosylation introduced to it by HF treatment. Partial deglycosylation increased exposure of core peptide amino acid sequences increasing MoAb binding generally, while it either decreased or occasionally increased binding of blood group oligosaccharides. Cross reactivity of MoAbs to other mucins was low with the breast epithelial mucin (BEM). The study of the affinity binding constants of some of the anti-BEM peptide MoAbs predicted carbohydrate participation in their epitope structure. The identification of different epitopes on the BEM, investigations on their possible epitopic structure, and the study of MoAb binding during different stages of glycosylation of the molecule leads to knowledge on the contribution of carbohydrates to their epitopes and strengthens the ability to understand their performance in their diverse possible applications in breast cancer diagnosis, prognosis, and therapy. C1 JOHN MUIR CANC & AGING RES INST,WALNUT CREEK,CA 94596. MICHIGAN STATE UNIV,US DOE,PLANT RES LAB,E LANSING,MI 48824. FU NCI NIH HHS [R01-CA-39932, R01-CA-39936] NR 42 TC 20 Z9 20 U1 1 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0167-6806 J9 BREAST CANCER RES TR JI Breast Cancer Res. Treat. PY 1992 VL 24 IS 2 BP 103 EP 113 DI 10.1007/BF01961243 PG 11 WC Oncology SC Oncology GA KL908 UT WOS:A1992KL90800003 PM 7680246 ER PT J AU DEVOLPI, A AF DEVOLPI, A TI 2-TRACK VERIFICATION FOR CHEMICAL TREATY SO BULLETIN OF THE ATOMIC SCIENTISTS LA English DT Letter RP DEVOLPI, A (reprint author), ARGONNE NATL LAB,ARGONNE,IL 60439, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU EDUC FOUNDATION NUCLEAR SCI PI CHICAGO PA 6042 SOUTH KIMBARK, CHICAGO, IL 60637 SN 0096-3402 J9 B ATOM SCI JI Bull. Atom. Scient. PD JAN-FEB PY 1992 VL 48 IS 1 BP 45 EP 47 PG 3 WC International Relations; Social Issues SC International Relations; Social Issues GA GY138 UT WOS:A1992GY13800018 ER PT B AU BHATTACHARYYA, MH PETERSON, DP SACCOGIBSON, N AF BHATTACHARYYA, MH PETERSON, DP SACCOGIBSON, N BE Cook, ME Hiscock, SA Morrow, H Volpe, RA TI NEW, SENSITIVE ASSAY FOR CADMIUM IN BIOLOGICAL SAMPLES SO CADMIUM 92 - EDITED PROCEEDINGS, SEVENTH INTERNATIONAL CADMIUM CONFERENCE, NEW ORLEANS LA English DT Proceedings Paper CT 7th International Cadmium Conference CY APR 06-08, 1992 CL NEW ORLEANS, LA SP CADMIUM ASSOC, LONDON, CADMIUM COUNCIL INC, RESTON, INT LEAD ZINC RES ORG INC, RES TRIANGLE PK C1 ARGONNE NATL LAB,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CADMIUM ASSOC PI LONDON PA 42 WEYMOUTH ST, LONDON, ENGLAND W1N 3LQ PY 1992 BP 113 EP 114 PG 2 WC Public, Environmental & Occupational Health; Toxicology SC Public, Environmental & Occupational Health; Toxicology GA BZ85F UT WOS:A1992BZ85F00025 ER PT B AU BHATTACHARYYA, MH PETERSON, DP SACCOGIBSON, N AF BHATTACHARYYA, MH PETERSON, DP SACCOGIBSON, N BE Cook, ME Hiscock, SA Morrow, H Volpe, RA TI NEW, SENSITIVE ASSAY FOR CADMIUM IN BIOLOGICAL SAMPLES SO CADMIUM 92 : EDITED PROCEEDINGS, SEVENTH INTERNATIONAL CADMIUM CONFERENCE, NEW ORLEANS LA English DT Proceedings Paper CT 7TH INTERNATIONAL CADMIUM CONF CY APR 06-08, 1992 CL NEW ORLEANS, LA RP BHATTACHARYYA, MH (reprint author), ARGONNE NATL LAB,ARGONNE,IL 60439, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CADMIUM ASSOC PI LONDON PA LONDON PY 1992 BP 113 EP 117 PG 5 WC Public, Environmental & Occupational Health; Mineralogy SC Public, Environmental & Occupational Health; Mineralogy GA BX97Y UT WOS:A1992BX97Y00024 ER PT J AU TUMIDAJSKI, PJ BLANDER, M AF TUMIDAJSKI, PJ BLANDER, M TI SOLUBILITY OF FECL2 IN MOLTEN NACL-ALCL3 SO CANADIAN METALLURGICAL QUARTERLY LA English DT Article ID ALCL3-NACL MELTS; EQUILIBRIA; SOLVENT; SALTS AB Measurements of the solubility of FeCl2 in molten NaCl-AlCl3 are determined by an aliquot sampling technique at 175 and 255-degrees-C for acidic and basic compositions. There is a pronounced com-positional dependence of the FeCl2 solubilities with a minimum in solubility at approximately the equimolar solvent composition. The solubilities (in mol fraction FeCl2) at the minimum are determined to be 3.79 x 10(-5) and 1.59 x 10(-4) at 175 and 255-degrees-C, respectively. The minima in solubilities are described by physical solution theories and concepts (i.e. coordination cluster theory (CCT)). The solubilities in these highly ordered NaCl-AlCl3 solutions are also described in chemical terms. The true solubility product for FeCl2, K(sp)true, is calculated to be 9.18 x 10(-17) and 2.58 x 10(-15) at 175 and 255-degrees-C, respectively. The magnitudes of the solubility products are primarily related to the fact that the standard free energy of formation of 2NaAlCl4 from 2NaCl and 2AlCl3 is considerably more negative than the corresponding free energy for Fe(AlCl4)2. In basic and in somewhat acidic melts, solubilities are largely related to the formation of the associated ionic species FeCl+, FeCl2, FeCl3-, and FeCl4(2). From our measurements, we calculate the formation constant (in ionic fractions) of Fecl+ to be K11 = 8.63 x 10(6) at 255-degrees-C. Furthermore, the specific bond free energy for this associated complex, DELTA-A, - 14.50 +/- 0.50 kcal mol-1 (-60.67 +/- 2.09 kJ mol-1), is independent of temperature. The formation constant for the associated species FeCl4(2-) from Fe2+ and 4Cl- ions is estimated to be of the order of 10(14) at 255-degrees-C. C1 ARGONNE NATL LAB,DIV CHEM TECHNOL,ARGONNE,IL 60439. RP TUMIDAJSKI, PJ (reprint author), UNIV WESTERN ONTARIO,DEPT MAT ENGN,LONDON N6A 5B9,ONTARIO,CANADA. NR 17 TC 6 Z9 6 U1 1 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0008-4433 J9 CAN METALL QUART JI Can. Metall. Q. PD JAN-MAR PY 1992 VL 31 IS 1 BP 25 EP 30 PG 6 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA HJ865 UT WOS:A1992HJ86500004 ER PT J AU WOOD, GO AF WOOD, GO TI ACTIVATED CARBON ADSORPTION CAPACITIES FOR VAPORS SO CARBON LA English DT Article DE ADSORPTION; CAPACITIES; AFFINITY COEFFICIENTS; VAPORS; CARBON ID ORGANIC VAPORS AB It is sometimes desirable to estimate the adsorption capacity of an activated carbon bed for a chemical vapor at a selected concentration. The laboratory measurement of such a capacity (one point on an adsorption isotherm) may be hindered due to toxicity, availability, cost, time, etc. Therefore. an adsorption isotherm equation with general parameters based on physical properties of the adsorbate would be very useful. Equilibrium adsorption isotherm data and affinity coefficients for wide varieties of vapors and activated carbon have been collected from reports and publications. The Dubini/Radushkevich equation was used for a correlation of these data based on readily available molar polarizations. The correlations for 123 affinity coefficients and 1350 adsorption capacities resulted in standard deviations of 0.18 and 0.029 g/g, respectively. RP WOOD, GO (reprint author), LOS ALAMOS NATL LAB,MS K486,LOS ALAMOS,NM 87545, USA. NR 23 TC 90 Z9 92 U1 2 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0008-6223 J9 CARBON JI Carbon PY 1992 VL 30 IS 4 BP 593 EP 599 PG 7 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HY459 UT WOS:A1992HY45900008 ER PT J AU EFFLER, LJ FELLERS, JF ANNIS, BK AF EFFLER, LJ FELLERS, JF ANNIS, BK TI SCANNING TUNNELING MICROSCOPY AND X-RAY ANALYSES ON MESOPHASE PITCH-BASED CARBON-FIBERS SO CARBON LA English DT Article DE X-RAY ANALYSIS; CARBON FIBERS; MESOPHASE; SCANNING TUNNELING MICROSCOPY ID GRAPHITE FIBERS; SCATTERING; SURFACE; MICROSTRUCTURE; FIBRES AB Scanning tunneling microscopy (STM) has been used as the primary tool to examine mesophase pitch-based carbon fibers ranging in modulus from 280-750 GPa. STM revealed a sheet-like structure for the carbon basal planes. These sheets were found to be composed of smaller elongated "pillows" that were aligned along the fiber axis. These pillows were found to become longer and more oriented as fiber modulus increased. STM images on the atomic scale revealed an increasingly graphitic structure with fiber modulus. These STM results correlate well to wide-angle X-rav diffraction (WAXD), small-angle X-ray scattering (SAXS) results, and scanning electron microscopy (SEM). WAXD and SAXS also indicated a development of a highly oriented, more graphitic structure with increasing fiber modulus, while SEM revealed a cross-section composed of radial sheets. From these results, a proposed structure for a theoretical ultimate fiber is extrapolated. C1 UNIV TENNESSEE,DEPT MAT SCI & ENGN,KNOXVILLE,TN 37920. OAK RIDGE NATL LAB,DIV CHEM,OAK RIDGE,TN 37831. NR 31 TC 6 Z9 8 U1 2 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0008-6223 J9 CARBON JI Carbon PY 1992 VL 30 IS 4 BP 631 EP 638 DI 10.1016/0008-6223(92)90182-V PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HY459 UT WOS:A1992HY45900013 ER PT J AU PARKER, DH CHATTERJEE, K WURZ, P LYKKE, KR PELLIN, MJ STOCK, LM AF PARKER, DH CHATTERJEE, K WURZ, P LYKKE, KR PELLIN, MJ STOCK, LM TI FULLERENES AND GIANT FULLERENES - SYNTHESIS, SEPARATION, AND MASS-SPECTROMETRIC CHARACTERIZATION SO CARBON LA English DT Article DE FULLERENE SYNTHESIS; MASS SPECTROMETRY; SOOT; FULLERENE SEPARATION ID C60 BUCKMINSTERFULLERENE; LASER ABLATION; C70 CLUSTERS; CARBON DUST; C-60; MOLECULES; SPECTRA; FORM; COAL; ION AB We report a detailed procedure for the production of fullerenes and giant fullerenes in very high yield. Our high yields are obtained by a combination of fine control of the arc gap distance, optimal convection in the apparatus. and careful Soxhlet extraction with selected solvents. Our extraction and mass spectrometry results confirm the existence of giant fullerenes with masses in excess of 3000 amu. We find that 94% of the soot can be extracted in N-methyl-2-pyrrolidinone, indicating that a large portion of the soot has a molecular fullerene-type structure. We also present a new one-step method for the rapid separation of pure C60 directly from raw soot. An overview of recent results in the area of synthesis and purification of fullerenes and giant fullerenes is also presented. C1 UNIV CALIF IRVINE, INST SURFACE & INTERFACE SCI, IRVINE, CA 92727 USA. ARGONNE NATL LAB, DIV CHEM, ARGONNE, IL 60439 USA. RP PARKER, DH (reprint author), ARGONNE NATL LAB, DIV MAT SCI, ARGONNE, IL 60439 USA. RI Pellin, Michael/B-5897-2008 OI Pellin, Michael/0000-0002-8149-9768 NR 48 TC 57 Z9 58 U1 1 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0008-6223 J9 CARBON JI Carbon PY 1992 VL 30 IS 8 BP 1167 EP 1182 DI 10.1016/0008-6223(92)90060-A PG 16 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA KE676 UT WOS:A1992KE67600005 ER PT J AU GINTER, DM MAGNI, E SOMORJAI, GA HEINEMANN, H AF GINTER, DM MAGNI, E SOMORJAI, GA HEINEMANN, H TI OXIDATIVE COUPLING OF METHANE AT 600-DEGREES-C ON CANIK OXIDE CATALYSTS SO CATALYSIS LETTERS LA English DT Article DE CATALYSTS; METHANE CONVERSION; OXIDATIVE COUPLING; X-RAY DIFFRACTION; EFFECT OF STEAM ID OXYDEHYDROGENATION AB We are herewith reporting new data which modifies, explains and extends our earlier work on this subject. Previous observations of low CH4 conversion and high selectivity to C2 hydrocarbons were erroneous due to the formation of bulk CaCO3 in the catalyst. The carbonate was detected by powder X-ray diffraction and was shown to accumulate during the reaction and decompose during regeneration. Catalytic runs which incorporated an internal standard revealed a deficit in the C balance consistent with carbonate formation. Actual CH4 conversions were almost-equal-to 20% with almost-equal-to 15% selectivity to hydrocarbons. The effect of steam in promoting coupling over combustion was affirmed. RP GINTER, DM (reprint author), LAWRENCE BERKELEY LAB,CTR ADV MAT,BERKELEY,CA 94720, USA. NR 4 TC 10 Z9 10 U1 0 U2 1 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 16 IS 1-2 BP 197 EP 201 DI 10.1007/BF00764371 PG 5 WC Chemistry, Physical SC Chemistry GA JV184 UT WOS:A1992JV18400024 ER PT J AU SOMORJAI, GA AF SOMORJAI, GA TI BUILDING AND CHARACTERIZATION OF CATALYSTS ON SINGLE-CRYSTAL SURFACES SO CATALYSIS LETTERS LA English DT Article; Proceedings Paper CT SYMP ON NEW STRATEGIES FOR THE SYNTHESIS AND CHARACTERIZATION OF CATALYSTS, AT THE 1991 FALL MEETING OF THE MATERIALS RESEARCH SOC CY DEC 02-05, 1991 CL BOSTON, MA SP MAT RES SOC, NASA, CTR COMMERCIAL DEV SPACE POWER & ADV ELECTR, MOBIL RES & DEV, EXXON RES & ENGN, ALLIED SIGNAL, GM CORP, AMOCO, AMER CHEM SOC DE SINGLE CRYSTAL CATALYSTS; BUILDING OF CATALYSTS ID TITANIA OVERLAYERS; AMMONIA-SYNTHESIS; THIOPHENE HYDRODESULFURIZATION; TEMPERATURE-DEPENDENCE; COBALT OVERLAYERS; CO HYDROGENATION; CARBON-MONOXIDE; CHEMISORPTION; PLATINUM; SULFUR AB The components of complex catalyst systems include transition metals, oxides, alkali metal or halogen additives and strongly chemisorbed sulfur or carbonaceous species. Modern surface science techniques identified the chemical and structural roles of these ingredients when used in combination with catalytic reaction rate studies. Using metal single crystal substrates, catalyst components have been deposited from the vapor phase and the complex catalyst system could be built this way. The Pt-Re-S, Rh-TiO2, and Mo-Co-S systems are reviewed and the requirements for the proper surface structure and composition to obtain high reaction rates and selectivities are discussed. C1 LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RP SOMORJAI, GA (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. NR 46 TC 9 Z9 9 U1 0 U2 3 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 15 IS 1-2 BP 25 EP 37 DI 10.1007/BF00770895 PG 13 WC Chemistry, Physical SC Chemistry GA JJ259 UT WOS:A1992JJ25900004 ER PT J AU JELINEK, R CHMELKA, BF WU, Y DAVIS, ME ULAN, JG GRONSKY, R PINES, A AF JELINEK, R CHMELKA, BF WU, Y DAVIS, ME ULAN, JG GRONSKY, R PINES, A TI ADSORPTION EFFECTS IN ALUMINOPHOSPHATE MOLECULAR-SIEVES STUDIED BY AL-27 DOUBLE-ROTATION NMR SO CATALYSIS LETTERS LA English DT Article; Proceedings Paper CT SYMP ON NEW STRATEGIES FOR THE SYNTHESIS AND CHARACTERIZATION OF CATALYSTS, AT THE 1991 FALL MEETING OF THE MATERIALS RESEARCH SOC CY DEC 02-05, 1991 CL BOSTON, MA SP MAT RES SOC, NASA, CTR COMMERCIAL DEV SPACE POWER & ADV ELECTR, MOBIL RES & DEV, EXXON RES & ENGN, ALLIED SIGNAL, GM CORP, AMOCO, AMER CHEM SOC DE NMR (DOR) SPECTROSCOPY; ALUMINOPHOSPHATE; MOLECULAR SIEVES; ALUMINUM ENVIRONMENT; ADSORPTION SITES; STRUCTURAL DISORDER; WATER ADSORPTION ID DOUBLE-ROTOR; VPI-5; ALPO4-8 AB Al-27 double rotation NMR (DOR) spectroscopy is used to investigate structural changes in the framework of several aluminophosphate molecular sieves upon adsorption of water. The shapes, widths, and positions of the spectral lines yield information on the aluminum environments, adsorption sites, and degree of structural disorder undergone upon water adsorption. C1 LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. OI jelinek, raz/0000-0002-0336-1384 NR 17 TC 20 Z9 20 U1 0 U2 0 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 15 IS 1-2 BP 65 EP 73 DI 10.1007/BF00770899 PG 9 WC Chemistry, Physical SC Chemistry GA JJ259 UT WOS:A1992JJ25900008 ER PT J AU GARDNER, TJ PEDEN, CHF DATYE, AK AF GARDNER, TJ PEDEN, CHF DATYE, AK TI ACTIVATION BEHAVIOR OF NI HYDROUS TITANIUM-OXIDE (HTO) CATALYSTS SO CATALYSIS LETTERS LA English DT Article; Proceedings Paper CT SYMP ON NEW STRATEGIES FOR THE SYNTHESIS AND CHARACTERIZATION OF CATALYSTS, AT THE 1991 FALL MEETING OF THE MATERIALS RESEARCH SOC CY DEC 02-05, 1991 CL BOSTON, MA SP MAT RES SOC, NASA, CTR COMMERCIAL DEV SPACE POWER & ADV ELECTR, MOBIL RES & DEV, EXXON RES & ENGN, ALLIED SIGNAL, GM CORP, AMOCO, AMER CHEM SOC DE CATALYST ACTIVATION; ION EXCHANGE; NI; HYDROUS TITANIUM OXIDE; N-BUTANE HYDROGENOLYSIS ID SUPPORTED NICKEL-CATALYSTS; METAL; PARTICLES; SURFACES AB The activation of Ni-TiO2 catalysts prepared via both impregnation on commercial TiO2 and by ion exchange on hydrous titanium oxide (HTO) supports was investigated. The reactivity of these catalysts for a structure-sensitive reaction (n-butane hydrogenolysis) was investigated as a function of different activation treatments (temperature, time) in a H-2 atmosphere. Complete activation of the ion exchanged Ni/HTO catalyst in H-2 required temperatures > 623 K and times > 18 h. Low temperature (573 K) activation of the ion exchanged Ni/HTO catalyst in H-2 was not possible without performing a mild (573 K) reduction/oxidation/reduction cycle. Observations of the ion exchanged Ni/HTO catalyst microstructures by transmission electron microscopy revealed that inactive samples contained a distinct film which covered Ni particle surfaces. The exact nature of this film has not yet been determined; experimental evidence is consistent with the film being composed of either carbonaceous residue or TiO(x) which has migrated to the Ni particle surfaces from the bulk support phase. C1 UNIV NEW MEXICO,DEPT CHEM & NUCL ENGN,ALBUQUERQUE,NM 87131. RP GARDNER, TJ (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. OI Peden, Charles/0000-0001-6754-9928; Datye, Abhaya/0000-0002-7126-8659 NR 21 TC 5 Z9 5 U1 0 U2 0 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 15 IS 1-2 BP 111 EP 122 DI 10.1007/BF00770904 PG 12 WC Chemistry, Physical SC Chemistry GA JJ259 UT WOS:A1992JJ25900013 ER PT J AU MCINTYRE, BJ SALMERON, MB SOMORJAI, GA AF MCINTYRE, BJ SALMERON, MB SOMORJAI, GA TI A SCANNING TUNNELING MICROSCOPE THAT OPERATES AT HIGH-PRESSURES AND HIGH-TEMPERATURES (430-K) AND DURING CATALYTIC REACTIONS SO CATALYSIS LETTERS LA English DT Article DE SCANNING TUNNELING MICROSCOPY; STM; INSITU; PLATINUM ID SURFACE; PT(110); OXYGEN AB We describe the construction and operation of a scanning tunneling microscope (STM) designed in our laboratory that is contained in a reaction cell and allows operation throughout a wide range of pressures (ultra-high vacuum-atmospheric) and temperatures (300-425 K). This thermally compensated, double piezo tube design is entirely mechanically clamped. Samples are inertially translated and can be easily transferred in and out of the STM. With this microscope, we have investigated the stability of Pt(110) as a function of oxygen and hydrogen pressure and temperature. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. RP MCINTYRE, BJ (reprint author), LAWRENCE BERKELEY LAB,CTR ADV MAT,DIV MAT SCI,BERKELEY,CA 94720, USA. NR 7 TC 54 Z9 54 U1 2 U2 14 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 14 IS 3-4 BP 263 EP 269 DI 10.1007/BF00769663 PG 7 WC Chemistry, Physical SC Chemistry GA JF444 UT WOS:A1992JF44400003 ER PT J AU KRISHNA, KR BELL, AT AF KRISHNA, KR BELL, AT TI THE ROLE OF C2 INTERMEDIATES IN FISCHER-TROPSCH SYNTHESIS OVER RUTHENIUM SO CATALYSIS LETTERS LA English DT Article DE C2 INTERMEDIATES; FISCHER-TROPSCH SYNTHESIS ID CATALYZED HYDROCARBON SYNTHESIS; CARBON-MONOXIDE HYDROGENATION; CO HYDROGENATION; ETHENE; PATHWAYS AB The C2 products formed over Ru during Fischer-Tropsch synthesis often lie well below thc Anderson-Schultz-Flory line describing the C4+ products. This has led to speculation that either the surface precursor to C2 hydrocarbons is exceptionally long lived, or that the ethylene formed by CO hydrogenation readsorbs and thereby reenters the chain growth process. In this study, the role of ethylene readsorption on the dynamics of chain initiation and growth is investigated using (CO)-C-13/H-2 and (C2H4)-C-12 to differentiate between the carbon sources. Ethylene addition is found to suppress the rate of methanation and increase thc rates of formation of C3+ hydrocarbons. Ethylene serves as an effective chain initiator, as well as a source of C1 monomer species which participate in chain propagation. No evidence is seen, though, for thc participation of C2 species in chain propagation. C1 UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720. RP KRISHNA, KR (reprint author), LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720, USA. OI Bell, Alexis/0000-0002-5738-4645 NR 20 TC 31 Z9 31 U1 2 U2 6 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 14 IS 3-4 BP 305 EP 313 DI 10.1007/BF00769668 PG 9 WC Chemistry, Physical SC Chemistry GA JF444 UT WOS:A1992JF44400008 ER PT J AU SOMORJAI, GA AF SOMORJAI, GA TI THE EXPERIMENTAL-EVIDENCE OF THE ROLE OF SURFACE RESTRUCTURING DURING CATALYTIC REACTIONS SO CATALYSIS LETTERS LA English DT Article; Proceedings Paper CT 5TH TRILATERAL UNITED-STATES / JAPAN / CHINA SYMP ON CATALYSIS CY JUN 27-29, 1991 CL NORTHWESTERN UNIV, CTR CATALYSIS & SURFACE SCI, EVANSTON, IL HO NORTHWESTERN UNIV, CTR CATALYSIS & SURFACE SCI DE SURFACE RESTRUCTURING; EVIDENCE FOR RESTRUCTURING; ADSORPTION INDUCED RESTRUCTURING ID CHEMISORPTION AB Changes of surface structure of transition metals, and oxides were observed to occur on three different time scales. Chemisorption induced restructuring is localized to the proximity of the adsorption site and is likely to take place within less than 10(-6) sec. In this regime the coverage dependence of restructuring can also be detected. Surface reconstruction has also been found to occur on the catalytic turnover time scale (10(-2)-10(2) sec) and is detectable readily during oscillatory and partial oxidation reactions. Structural changes also occur at oxide-metal interfaces in this time scale under reaction conditions. Surface atom transport controlled restructuring takes place during longer time-periods, 10(2)-10(4) sec. These diffusion controlled processes can be correlated with catalyst activation and deactivation that are detectable on a similar time scale. Oxidation and reduction of catalyst particles, sulfur or alkali metal adsorption can all lead to restructuring of this type. The results of experiments are reviewed and the need for developing time resolved techniques to detect surface structural changes at high pressures and temperatures is discussed. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RP SOMORJAI, GA (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DEPT CHEM,BERKELEY,CA 94720, USA. NR 21 TC 44 Z9 44 U1 0 U2 2 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 1011-372X J9 CATAL LETT JI Catal. Lett. PY 1992 VL 12 IS 1-3 BP 17 EP 34 DI 10.1007/BF00767185 PG 18 WC Chemistry, Physical SC Chemistry GA HG530 UT WOS:A1992HG53000004 ER PT J AU GRDINA, DJ SIGDESTAD, CP AF GRDINA, DJ SIGDESTAD, CP TI CHEMICAL PROTECTION AND CELL-CYCLE EFFECTS ON RADIATION-INDUCED MUTAGENESIS SO CELL PROLIFERATION LA English DT Article ID V79 CELLS; S-2-(3-AMINOPROPYLAMINO)-ETHYLPHOSPHOROTHIOIC ACID; DNA DAMAGE; REPAIR; WR1065; 2-<(AMINOPROPYL)AMINO>ETHANETHIOL; RADIOPROTECTORS; PROGRESSION AB Chinese hamster ovary cells in the exponential phase of growth were harvested and separated by the method of centrifugal elutriation into subpopulations enriched with up to 95% G1 phase, 70% S phase and 65% G2 + M phase cells. Cell cycle distributions were routinely monitored by flow cytometry. Following elutriation, aliquots of cells from each of the enriched cell fractions were incubated in the presence or absence of 4 mM of 2-[(aminopropyl)amino] ethanethiol (WR-1065) for 30 min at 37-degrees-C. The cells were then irradiated with Co-60 gamma-rays or fission-spectrum neutrons from the JANUS research reactor. Both cell killing and mutagenesis were determined. Regardless of the radiation quality used, cells enriched in G1 phase were the most sensitive to radiation-induced mutagenesis at the hypoxanthine-guanine phosphoribosyl transferase locus. The relative magnitude of protection exerted by WR-1065 differed for each of the elutriator separated cell populations. The greatest magnitude of protection, however, was observed for G1-enriched populations, regardless of the radiation quality used or the biological end-point tested. C1 UNIV CHICAGO,MED CTR,DEPT RADIAT ONCOL,CHICAGO,IL 60637. UNIV LOUISVILLE,HLTH SCI CTR,SCH MED,JG BROWN CANC CTR,DEPT RADIAT ONCOL,LOUISVILLE,KY 40202. RP GRDINA, DJ (reprint author), ARGONNE NATL LAB,DIV BIOL & MED RES,BIM202,9700 S CASS AVE,ARGONNE,IL 60439, USA. FU NCI NIH HHS [CA-37435] NR 25 TC 19 Z9 19 U1 0 U2 0 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0960-7722 J9 CELL PROLIFERAT JI Cell Prolif. PD JAN PY 1992 VL 25 IS 1 BP 23 EP 29 DI 10.1111/j.1365-2184.1992.tb01434.x PG 7 WC Cell Biology SC Cell Biology GA HF260 UT WOS:A1992HF26000002 PM 1540681 ER PT J AU MARSHALL, GW MCCOY, DD KINNEY, JH LETZEL, H MARSHALL, SJ AF MARSHALL, GW MCCOY, DD KINNEY, JH LETZEL, H MARSHALL, SJ TI MICROSTRUCTURAL CHANGES IN RETRIEVED AMALGAM RESTORATIONS SO CELLS AND MATERIALS LA English DT Article DE AMALGAM; MICROSTRUCTURE; BACKSCATTERED SCANNING ELECTRON MICROSCOPY; MICROPROBE; ELEMENTAL MAPPING ID CU EUTECTIC COMPOSITION; MICROPROBE ANALYSIS; MARGINAL FRACTURE; ALLOY PARTICLES; CORROSION; SURVIVAL AB Many blended or dispersed phase high Cu amalgams show excellent clinical performance in long term clinical trials. However, little is known concerning the microstructural changes that occur during clinical use of these systems. This investigation sought to characterize some of the changes that occur in the Ag-Cu particles and their surrounding reaction zones based on a study by backscattered scanning electron microscopy (BSEM), energy dispersive spectroscopy and a new microprobe technique called Colorad which assigns various colors to elements and element combinations and indicates changes in elemental concentration by changes in color value (brightness). Restorations were retrieved from clinical trials and compared to control restorations prepared and retrieved in the same way. The clinical restorations showed marked changes in the composition of the Ag-Cu particles with the composition approaching that of the surrounding matrix phase so that they appear as pale particles in BSEM. These particles were often surrounded by a ring of Sn-rich corrosion product which replaced the normal reaction zone. The reaction zones appeared to be complex and have a number of subzones of varying composition. Many of the reaction zones also underwent coarsening of their structure. Corrosion is thought to play a prominent role in the conversion of the Ag-Cu particles to a Ag-Hg composition similar to the surrounding matrix. There appeared to be more transformation in the L system, a dispersed phase system without Zn, which has poorer clinical survival, than in the D system, a dispersed phase system with 1% Zn, which shows superior clinical performance. C1 LAWRENCE LIVERMORE NATL LAB,DIV CHEM & MAT SCI,LIVERMORE,CA 94550. CATHOLIC UNIV NIJMEGEN,NIJMEGEN,NETHERLANDS. RP MARSHALL, GW (reprint author), UNIV CALIF SAN FRANCISCO,DEPT RESTORAT DENT,SAN FRANCISCO,CA 94143, USA. NR 19 TC 4 Z9 4 U1 0 U2 1 PU SCANNING MICROSCOPY INT PI CHICAGO PA PO BOX 66507, AMF O'HARE, CHICAGO, IL 60666 SN 1051-6794 J9 CELL MATER JI Cells Mat. PY 1992 VL 2 IS 1 BP 29 EP 36 PG 8 WC Cell Biology; Medicine, Research & Experimental; Materials Science, Biomaterials SC Cell Biology; Research & Experimental Medicine; Materials Science GA JA040 UT WOS:A1992JA04000004 ER PT J AU Mainieri, R AF Mainieri, Ronnie TI Cycle expansion for the Lyapunov exponent of a product of random matrices SO CHAOS LA English DT Article AB Using cycle expansion for the thermodynamic zeta function, a formula is derived for the Lyapunov exponent of a product of random hyperbolic matrices chosen from a discrete set. This allows for an accurate numerical solution of the Ising model in one dimension with quenched disorder. The formula is compared with weak disorder expansions and with the microcanonical approximation and shown to apply to matrices with degenerate eigenvalues. C1 [Mainieri, Ronnie] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark. RP Mainieri, R (reprint author), Univ Calif Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA. FU NATO/NSF [RCD-9050092] FX I would like to thank the hospitality of the Neils Bohr Institute where this work was carried out under the financial support of the NATO/NSF post-doctoral fellowship RCD-9050092. It is also a pleasure to acknowledge discussions with Predrag Cvitanovic, Marco Isopi, Eric Key, Giovanni Paladin, and Ruben Zeitak. NR 31 TC 7 Z9 7 U1 0 U2 1 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1054-1500 J9 CHAOS JI Chaos PD JAN PY 1992 VL 2 IS 1 BP 91 EP 97 DI 10.1063/1.165903 PG 7 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA V22XN UT WOS:000208308000012 ER PT J AU Littlejohn, RG Flynn, WG AF Littlejohn, Robert G. Flynn, William G. TI Phase integral theory, coupled wave equations, and mode conversion SO CHAOS LA English DT Article AB Phase integral or WKB theory is applied to multicomponent wave equations, i.e., wave equations in which the wave field is a vector, spinor, or tensor of some kind. Specific examples of physical interest often have special features that simplify their analysis, when compared with the general theory. The case of coupled channel equations in atomic or molecular scattering theory in the Born-Oppenheimer approximation is examined in this context. The problem of mode conversion, also called surface jumping or Landau-Zener-Stuckelberg transitions, is examined in the multidimensional case, and cast into normal form. The group theoretical principles of the normal form transformation are laid out, and shown to involve both the Lorentz group and the symplectic group. C1 [Littlejohn, Robert G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Littlejohn, RG (reprint author), Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. FU Office of Energy Research, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC03-76SF00098]; National Science Foundation [NSF-PYI-84-51276] FX We would like to thank Thomas Guhr, Hans Frisk, Eric Heller, Allan Kaufman, and Alden Mead for many useful conversations. This work was supported by the Director, Office of Energy Research, Office of Basic Energy Sciences, of the U.S. Department of Energy under contract No. DE-AC03-76SF00098, and by the National Science Foundation under Grant No. NSF-PYI-84-51276. NR 24 TC 23 Z9 23 U1 2 U2 6 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1054-1500 J9 CHAOS JI Chaos PD JAN PY 1992 VL 2 IS 1 BP 149 EP 158 DI 10.1063/1.165918 PG 10 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA V22XN UT WOS:000208308000019 ER PT J AU YEH, JT MA, WT PENNLINE, HW HASLBECK, JL JOUBERT, JI GROMICKO, FN AF YEH, JT MA, WT PENNLINE, HW HASLBECK, JL JOUBERT, JI GROMICKO, FN TI INTEGRATED TESTING OF THE NOXSO PROCESS - SIMULTANEOUS REMOVAL OF SO2 AND NOX FROM FLUE-GAS SO CHEMICAL ENGINEERING COMMUNICATIONS LA English DT Article DE FLUE GAS; SO2; NOX; GAS CLEANING; SORBENT RP YEH, JT (reprint author), US DOE,PITTSBURGH ENERGY TECHNOL CTR,PITTSBURGH,PA 15236, USA. NR 9 TC 17 Z9 29 U1 1 U2 4 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0098-6445 J9 CHEM ENG COMMUN JI Chem. Eng. Commun. PY 1992 VL 114 BP 65 EP 88 DI 10.1080/00986449208936016 PG 24 WC Engineering, Chemical SC Engineering GA HU405 UT WOS:A1992HU40500004 ER PT J AU LONG, RL REIMUS, P AF LONG, RL REIMUS, P TI INTERFACIAL AREA PRODUCTION AT A TEE JUNCTION SO CHEMICAL ENGINEERING COMMUNICATIONS LA English DT Article DE INTERFACIAL AREA; TEE JUNCTION; MIXING; MULTIPHASE; TURBULENCE ID TURBULENT PIPE-FLOW; STATIC MIXER; DISPERSION; LIQUIDS; JET C1 UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544. RP LONG, RL (reprint author), NEW MEXICO STATE UNIV,LAS CRUCES,NM 88003, USA. NR 22 TC 1 Z9 1 U1 0 U2 2 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0098-6445 J9 CHEM ENG COMMUN JI Chem. Eng. Commun. PY 1992 VL 111 BP 1 EP 12 DI 10.1080/00986449208935977 PG 12 WC Engineering, Chemical SC Engineering GA HL298 UT WOS:A1992HL29800001 ER PT J AU ONG, EW MCKELVY, MJ OUVRARD, G GLAUNSINGER, WS AF ONG, EW MCKELVY, MJ OUVRARD, G GLAUNSINGER, WS TI MERCURY INTERCALATES OF TITANIUM DISULFIDE - NOVEL INTERCALATION COMPOUNDS SO CHEMISTRY OF MATERIALS LA English DT Note ID CHARGE COMPENSATION; AMMONIA OXIDATION; METAL; LI-X+(NH4+)YTIS2(X+Y')-(NH3)Y''TIS2(X+Y'>; DEINTERCALATION; GRAPHITE; LAYER; TAS2; HG C1 ARIZONA STATE UNIV,DEPT CHEM,TEMPE,AZ 85287. UNIV CALIF LOS ALAMOS SCI LAB,LANSCE H-805,LOS ALAMOS,NM 87545. ARIZONA STATE UNIV,CTR SOLID STATE SCI,TEMPE,AZ 85287. UNIV NANTES,INST MAT,F-44072 NANTES,FRANCE. NR 27 TC 26 Z9 27 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD JAN-FEB PY 1992 VL 4 IS 1 BP 14 EP 17 DI 10.1021/cm00019a006 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HC558 UT WOS:A1992HC55800007 ER PT J AU CLEARY, DA BAER, DR AF CLEARY, DA BAER, DR TI XPS AND ESR OF SNSE2-1-PERCENT-P(COCP2)0.36 SO CHEMISTRY OF MATERIALS LA English DT Article ID INTERCALATION; COBALTOCENE; SUPERCONDUCTIVITY; MNPS3 AB We have measured the Co 2P3/2 X-ray photoelectron (XPS) spectrum of SnSe2-1%P{CoCp2}0.36 as a function of time and have found that the Co 2p3/2 profile changes with time. This indicates that SnSe2-1%P{CoCP2}0.36 undergoes radiation damage as a result of X-ray exposure. Consideration of this damage is important when attempting to use XPS as a measure of the Co2+/Co3+ ratio is this material. Our X-band ESR spectra of SnSe2-1%P{CoCP2}0.36 are consistent with the presence of neutral cobaltocene in this material. Quantitative agreement between the XPS and ESR results is achieved when the temporal change in the XPS line shape is modeled using second-order kinetics. C1 PACIFIC NW LAB, MOLEC SCI RES CTR, RICHLAND, WA 99352 USA. RP CLEARY, DA (reprint author), WASHINGTON STATE UNIV, DEPT CHEM, PULLMAN, WA 99164 USA. RI Baer, Donald/J-6191-2013 OI Baer, Donald/0000-0003-0875-5961 NR 21 TC 5 Z9 5 U1 2 U2 7 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD JAN-FEB PY 1992 VL 4 IS 1 BP 112 EP 116 DI 10.1021/cm00019a024 PG 5 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HC558 UT WOS:A1992HC55800025 ER PT J AU KWON, YU CORBETT, JD AF KWON, YU CORBETT, JD TI INFLUENCE OF OXYGEN ON THE STABILITY OF ZR4SN SO CHEMISTRY OF MATERIALS LA English DT Article ID ZIRCALOY-4 ALLOYS; ZIRCONIUM AB Contradictions regarding the stability of Zr4Sn have been resolved in terms of the effects of oxygen (and perhaps other) impurities. The phase is stable at 800-1050-degrees-C (at least) and has the composition Zr4.0-4.2Sn, but the decomposition 3Zr4Sn --> O alpha-Zr(Sn,O) + Zr5Sn3 is driven by the solution of oxygen in the metal. Even trace amounts give three-phase products, such as on the surface of substantially all arc-melted and annealed samples of Zr4Sn, and the decomposition is complete at 1050-degrees-C in the presence of greater-than-or-similar-to 3 at. % oxygen. The separate and combined effects of tin and oxygen solutes on the lattice constants of alpha-Zr support the conclusions. The effect of oxygen (Fe, etc.) impurities on the solidus composition for alpha-Zr(Sn)-Zr4Sn may be responsible for some literature differences. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011. NR 24 TC 12 Z9 12 U1 1 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD JAN-FEB PY 1992 VL 4 IS 1 BP 187 EP 190 DI 10.1021/cm00019a035 PG 4 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HC558 UT WOS:A1992HC55800036 ER PT J AU PHILLIPS, MLF HARRISON, WTA STUCKY, GD MCCARRON, EM CALABRESE, JC GIER, TE AF PHILLIPS, MLF HARRISON, WTA STUCKY, GD MCCARRON, EM CALABRESE, JC GIER, TE TI EFFECTS OF SUBSTITUTION CHEMISTRY IN THE KTIOPO4 STRUCTURE FIELD SO CHEMISTRY OF MATERIALS LA English DT Article ID POTASSIUM VANADYL PHOSPHATE; LINEAR OPTICAL-PROPERTIES; WAVE-GUIDES; GENERATION; FABRICATION; RADIATION; KTIOASO4; SODIUM AB Potassium titanyl phosphate (KTiOPO4, or KTP) is an important nonlinear optical medium whose structure permits a moderate degree of cation mobility. This feature is exploited in the syntheses of Na0.95K0.05TiOPO4 (NaTP), Ag0.85K0.15TiOPO4 (AgTP), and Na0.87K0.13TiOAsO4 (NaTA) from single crystals of KTP and KTiOAsO4 (KTA) through ion exchange at low temperatures, as these compositions do not crystallize in the KTP structure type when prepared from their constituent oxides at high temperatures. All three compounds are orthorhombic, space group Pna2(1), with Z = 8. For NaTP, a = 12.611 (2) angstrom, b = 6.2810 (9) angstrom, c = 10.595 (2) angstrom; for AgTP, a = 12.534 (2) angstrom, b = 6.2939 (9) angstrom, c = 10.524 (1) angstrom; for NaTA, a = 12.8884 (9) angstrom, b = 6.4095 (3) angstrom, c = 10.7393 (6) angstrom. Crystals of alpha-NaTiOPO4, the high-temperature polymorph of NaTP, were prepared hydrothermally. This phase crystallizes in the titanite (CaTiOSiO4) structure and is monoclinic, space group P2(1)/c, with a = 6.566 (1) angstrom, b = 8.483 (1) angstrom, c = 7.140 (1) angstrom, beta = 115.25-degrees, and Z = 4. Ti-O coordination distances in the new KTP isostructures do not deviate significantly from those in KTP or KTA. Second harmonic generation intensities measured at 532 run show that optical nonlinearity in NaTP and AgTP is significantly attenuated from that in KTP and NaTA. These results are accounted for by (1) differences in interactions between K, Na, Ag, and the titanyl oxygen atoms, which influence the mixing of a delocalized excited state into the ground-state bonding and nonbonding framework orbitals, and (2) a decrease in bandgap due to the increased basicity of the oxygen atoms in the arsenate derivatives. C1 UNIV CALIF SANTA BARBARA,DEPT CHEM,SANTA BARBARA,CA 93106. DUPONT CO,DEPT CENT RES & DEV,WILMINGTON,DE 19880. RP PHILLIPS, MLF (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 38 TC 76 Z9 76 U1 1 U2 8 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0897-4756 J9 CHEM MATER JI Chem. Mat. PD JAN-FEB PY 1992 VL 4 IS 1 BP 222 EP 233 DI 10.1021/cm00019a041 PG 12 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA HC558 UT WOS:A1992HC55800042 ER PT J AU WIERSMA, GB BRUNS, DA FINLEY, K MCANULTY, L WHITWORTH, C BOELCKE, C AF WIERSMA, GB BRUNS, DA FINLEY, K MCANULTY, L WHITWORTH, C BOELCKE, C TI ELEMENTAL COMPOSITION OF LICHENS FROM A REMOTE NOTHOFAGUS FOREST SITE IN SOUTHERN CHILE SO CHEMOSPHERE LA English DT Article ID FIRED POWER-PLANT; METALS; AREA AB Concentrations of elemental nutrients (e.g., Ca, Mg) and anthropogenic trace metals (e.g., Pb, Cu) were measured in lichens (Nephroma antarcticum) in southern Chile as part of a pilot project for integrated global baseline monitoring (United Nations Global Environmental Monitoring System). The study site was a forested (Nothofagus pumilio) watershed located in Torres del Paine National Park and was expected to be relatively free of airborne pollutants due to its remote location in the southern hemisphere. Most elements and metals met quality assurance limits established for monitoring and exhibited low levels of spatial variability indicating their utility for baseline monitoring. Elemental and trace metal concentrations plus two enrichment indices supported the hypothesis of a contaminant-free airshed for the study area. For example, concentrations of K and P were enriched to support metabolic needs, while concentrations of the anthropogenic metal Pb was lower than any reported in the published literature. The enrichment factor for lead indicated a lack of atmospheric pollution. These findings support the use of the park as an excellent site for integrated global baseline monitoring. C1 WILKES UNIV,DEPT EARTH & ENVIRONM SCI,WILKES BARRE,PA 18766. IDAHO NATL ENGN LAB,CTR ENVIRONM MONITORING & ASSESSMENT,IDAHO FALLS,ID 83415. UNIV CALIF LOS ANGELES,BIOMED & ENVIRONM SCI LAB,LOS ANGELES,CA 90024. MSE INC,BUTTE,MT 59702. UN,ENVIRONM PROGRAM,NAIROBI,KENYA. RP WIERSMA, GB (reprint author), UNIV MAINE,COLL FOREST RESOURCES,DEPT FOREST BIOL,ORONO,ME 04473, USA. NR 33 TC 10 Z9 11 U1 0 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-6535 J9 CHEMOSPHERE JI Chemosphere PD JAN PY 1992 VL 24 IS 2 BP 155 EP 167 DI 10.1016/0045-6535(92)90389-9 PG 13 WC Environmental Sciences SC Environmental Sciences & Ecology GA HE446 UT WOS:A1992HE44600005 ER PT S AU STEINBERG, M AF STEINBERG, M BE Khan, MR TI TREATMENT OF MUNICIPAL SOLID-WASTE BY THE HYDROCARB PROCESS SO CLEAN ENERGY FROM WASTE AND COAL SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON CLEAN ENERGY FROM WASTE AND COAL, AT THE 202ND NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY AUG 25-30, 1991 CL NEW YORK, NY SP AMER CHEM SOC, DIV FUEL CHEM RP STEINBERG, M (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,DIV PROC SCI,UPTON,NY 11973, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON SN 0097-6156 BN 0-8412-2514-1 J9 ACS SYM SER PY 1992 VL 515 BP 72 EP 77 PG 6 WC Energy & Fuels; Environmental Sciences SC Energy & Fuels; Environmental Sciences & Ecology GA BX33H UT WOS:A1992BX33H00006 ER PT J AU KIM, SH PRIVE, GG YEH, J SCOTT, WG MILBURN, MV AF KIM, SH PRIVE, GG YEH, J SCOTT, WG MILBURN, MV TI A MODEL FOR TRANSMEMBRANE SIGNALING IN A BACTERIAL CHEMOTAXIS RECEPTOR SO COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY LA English DT Article ID DISULFIDE CROSS-LINKING; HUMAN GROWTH-HORMONE; ASPARTATE RECEPTOR; ESCHERICHIA-COLI; SENSORY RECEPTOR; EXTRACELLULAR DOMAIN; TRANSDUCTION; ACTIVATION; LIGAND C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RP KIM, SH (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. RI Prive, Gilbert/A-3039-2008 FU NIAID NIH HHS [AI-30725] NR 25 TC 11 Z9 11 U1 0 U2 0 PU COLD SPRING HARBOR LAB PRESS PI PLAINVIEW PA 1 BUNGTOWN RD, PLAINVIEW, NY 11724 SN 0091-7451 J9 COLD SPRING HARB SYM JI Cold Spring Harbor Symp. Quant. Biol. PY 1992 VL 57 BP 17 EP 24 PG 8 WC Biochemistry & Molecular Biology; Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics GA LV416 UT WOS:A1992LV41600002 PM 1339657 ER PT J AU PEARSON, SM WALSH, JM PICKERING, J AF PEARSON, SM WALSH, JM PICKERING, J TI WOOD STORK USE OF WETLAND HABITATS AROUND CUMBERLAND ISLAND, GEORGIA SO COLONIAL WATERBIRDS LA English DT Article DE HABITAT USE; LANDSCAPE MATRIX; MYCTERIA-AMERICANA; SPATIAL SCALE; WETLANDS; WOOD STORK AB Wood Stork (Mycteria americana) habitat use around Cumberland Island, Georgia was measured by classifying feeding and roosting locations with a geographic information system using data from 1:24000 national wetlands inventory maps. We found that palustrine wetlands were used extensively by foraging storks. More than 70% of foraging locations were in the estuary. Salt marsh and tidal creeks provided an abundant foraging habitat for breeding and non-breeding storks. An analysis of the landscape within 500 m of stork locations demonstrated that estuarine and freshwater habitats differed according to patch size and habitat diversity. These landscape-level differences influence the spatial patterns of habitat use by storks. Broad-scale studies may be useful for detecting patterns in habitat use but suffer from limitations due to coarse spatial resolution of habitat data. RP PEARSON, SM (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,POB 008 MS 6038,OAK RIDGE,TN 37831, USA. NR 0 TC 5 Z9 5 U1 1 U2 4 PU COLONIAL WATERBIRD SOC PI WASHINGTON PA NATL MUSEUM NATURAL HISTORY SMITHSONIAN INST, WASHINGTON, DC 20560 SN 0738-6028 J9 COLON WATERBIRD JI Colon. Waterbirds PY 1992 VL 15 IS 1 BP 33 EP 42 DI 10.2307/1521352 PG 10 WC Ecology; Ornithology SC Environmental Sciences & Ecology; Zoology GA KF120 UT WOS:A1992KF12000005 ER PT J AU BAXTER, LL MITCHELL, RE AF BAXTER, LL MITCHELL, RE TI THE RELEASE OF IRON DURING THE COMBUSTION OF ILLINOIS NO-6 COAL SO COMBUSTION AND FLAME LA English DT Article ID TRANSFORMATIONS; MINERALS; PYRITE; OXIDATION; ASH AB A series of investigations of iron release during the combustion of an Illinois No. 6 coal are reported. Experimental measurements are described in which 40% - 70% of the iron in the coal is released within a 25-ms period immediately following coal devolatilization. This iron release dominates the evolution of all other inorganic elements in this coal (excluding sulfur) on a mass basis. The release is consistently observed in controlled combustion environments over a particle size range from 75 to 125-mu-m and a gas oxygen concentration range of 6%-12%. Statistical uncertainty of the results is also reported and is small compared with the measured effect. Further experiments and analysis were conducted to determine the mechanism of iron release. Forms of iron with sufficient volatility to explain the results as a vaporization process were investigated. None was found that could reasonably be expected to form under the experimental conditions. Further experimentation suggests that the mechanism is related to the chemical reactivity of the iron species with oxygen and that the release proceeds through the chemical formation of an iron fume. RP BAXTER, LL (reprint author), SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94551, USA. RI Baxter, Larry/C-8567-2009 OI Baxter, Larry/0000-0002-0453-2659 NR 26 TC 27 Z9 31 U1 2 U2 9 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD JAN PY 1992 VL 88 IS 1 BP 1 EP 14 DI 10.1016/0010-2180(92)90002-7 PG 14 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA HB100 UT WOS:A1992HB10000001 ER PT J AU SMITH, FG PENDARVIS, RW RICE, RW AF SMITH, FG PENDARVIS, RW RICE, RW TI COMBUSTION OF CELLULOSIC CHAR UNDER LAMINAR-FLOW CONDITIONS SO COMBUSTION AND FLAME LA English DT Article ID REACTIVITY; OXYGEN; COAL AB An experimental and modeling study of cellulosic char combustion under laminar gas flow conditions was conducted covering the temperature range of 473-1173 K with 0.03-0.21 oxygen mole fraction in the feed gas. A gas film mass-transport limited model accurately fits the combustion rates measured in a large-scale thermogravimetric furnace. The best fit correlation to the experimental data predicts that local mass transfer rates are governed by the relationship Sh(x) = 0.221 Re(x) 0.564Sc1/3 and that mass transfer and char combustion rates are proportional to the oxygen mole fraction in the bulk gas raised to the 0.72 power. These results were used to develop an integral reactor model for a countercurrent pilot scale incinerator. Preliminary experiments indicate good agreement between model predictions and actual incinerator behavior. C1 CLEMSON UNIV,DEPT CHEM ENGN,CLEMSON,SC 29631. RP SMITH, FG (reprint author), WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER LAB,AIKEN,SC 29802, USA. NR 19 TC 7 Z9 7 U1 0 U2 2 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD JAN PY 1992 VL 88 IS 1 BP 61 EP 73 DI 10.1016/0010-2180(92)90007-C PG 13 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA HB100 UT WOS:A1992HB10000006 ER PT J AU RAUENZAHN, R AF RAUENZAHN, R TI PRESSURE-CONTAINING CORRELATIONS IN VARIABLE DENSITY AND TURBULENT REACTING FLOWS - COMMENT SO COMBUSTION AND FLAME LA English DT Note RP RAUENZAHN, R (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,MAIL STOP B216,LOS ALAMOS,NM 87545, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD JAN PY 1992 VL 88 IS 1 BP 119 EP 121 DI 10.1016/0010-2180(92)90012-E PG 3 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA HB100 UT WOS:A1992HB10000011 ER PT J AU STARNER, SH BILGER, RW DIBBLE, RW BARLOW, RS AF STARNER, SH BILGER, RW DIBBLE, RW BARLOW, RS TI MEASUREMENTS OF CONSERVED SCALARS IN TURBULENT-DIFFUSION FLAMES SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article ID DILUTED METHANE; EXTINCTION AB The prospects for two-dimensional imaging of conserved scalars in turbulent flames are investigated. It is shown that two simultaneous scalar measurements are required, and that there are several options, such as the Raman fuel-Rayleigh, Raman oxidant-Rayleigh and Raman fuel-Raman oxidant combinations. Measurements in turbulent and laminar flames are used to demonstrate the advantages and weaknesses of these alternatives: the Raman fuel-Rayleigh pair appears to be the most viable where dust and soot particles are absent. The Raman fuel-O2 pair has certain advantages in the presence of dust and solid scattering surfaces but is more susceptible to bias from soot precursor interference. C1 UNIV CALIF BERKELEY,DEPT MECH ENGN,BERKELEY,CA 94720. SANDIA NATL LABS,COMBUS RES FACIL,LIVERMORE,CA 94550. RP STARNER, SH (reprint author), UNIV SYDNEY,DEPT MECH ENGN,SYDNEY,NSW 2006,AUSTRALIA. NR 16 TC 29 Z9 29 U1 0 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 86 IS 1-6 BP 223 EP 236 PG 14 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA JY063 UT WOS:A1992JY06300012 ER PT J AU LEE, SHD TEATS, FG SWIFT, WM BANERJEE, DD AF LEE, SHD TEATS, FG SWIFT, WM BANERJEE, DD TI ALKALI-VAPOR EMISSION FROM PFBC OF ILLINOIS COALS SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Note DE FLUIDIZED BED COMBUSTION; PRESSURIZED FLUIDIZED BED COMBUSTION; ILLINOIS COALS; ALKALI; ALKALI VAPOR; ALKALI VAPOR EMISSION AB Two Illinois Herrin No. 6 coals and one Illinois Springfield No. 5 coal were combusted in a laboratory-scale PFBC/alkali sorber facility with a bed of Tymochtee dolomite at temperatures ranging from 910 to 950-degrees-C and a system pressure of 9.2 atm absolute. Alkali vapor emission (Na and K) from combustion was determined by analytical activated-bauxite sorber bed technique. The test results showed that sodium is the major alkali-vapor species present in the PFBC flue gas of these coals and that there is a positive linear relationship between the level of sodium-vapor emission with both Na and Cl contents in the coals. This suggests that the sodium-vapor emission from these coals is a result of direct vaporization of NaCl present in the coals. The measured alkali-vapor concentration (Na + K) ranges 67 to 90 ppbW and is more than 2.5 times greater than the allowable alkali limit of 24 ppb for an industrial gas turbine. It is concluded that utilizing these coals in the PFBC for power generation may require a method to control these alkali vapors. C1 CTR RES SULFUR COAL,COAL DEV PK,CARTERVILLE,IL 62918. RP LEE, SHD (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 11 TC 25 Z9 27 U1 1 U2 9 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 86 IS 1-6 BP 327 EP 336 DI 10.1080/00102209208947202 PG 10 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA JY063 UT WOS:A1992JY06300018 ER PT J AU LUCAS, D KOSHLAND, CP MCENALLY, CS SAWYER, RF AF LUCAS, D KOSHLAND, CP MCENALLY, CS SAWYER, RF TI THE DETECTION OF ETHYL CHLORIDE USING PHOTOFRAGMENTATION SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article; Proceedings Paper CT 2ND INTERNATIONAL CONGRESS ON TOXIC COMBUSTION BY-PRODUCTS CY MAR, 1991 CL UNIV UTAH, SALT LAKE CITY, UT SP US EPA, RISK REDUCT ENGN RES LAB, BRIGHAM YOUNG UNIV, NATL SCI FDN ENGN RES CTR, UNIV UTAH, COALIT RESPONSIBLE WASTE INCINERAT, NIEHS HO UNIV UTAH DE INCINERATION; CHLORINATED HYDROCARBONS; LASER INDUCED-FLUORESCENCE; PHOTOFRAGMENTATION; CONTINUOUS MONITORING ID ARF LASER; 193 NM; FLUORESCENCE; DISSOCIATION; DIAGNOSTICS; ABSORPTION; COMBUSTION AB We propose measuring chlorinated hydrocarbon emissions from hazardous waste incinerators by fragmenting molecules in the exhaust stream with high powered UV laser light, then measuring the subsequent concentration of the CCl fragment via laser induced fluorescence. We have shown that one of the chlorinated hydrocarbons, C2H5Cl, can be efficiently fragmented by 193 nm ArF excimer laser under the necessary conditions of atmospheric pressure and elevated temperatures, and in mixtures with air, H2O, and CO2. When a delayed pulse of light at 271.4 nm is added to the 193 nm pulse, fluorescence from CCl generated by the fragmentation process can be detected. The CCl fluorescence can be easily distinguished from O2 emission excited by the 193 nm laser due to the time interval between the different colored laser pulses. The level of CCl fluorescence is strongly dependent on the C2H5Cl concentration for the range of concentrations measured, 3 to 300 ppm. Conversely, CCl fluorescence could not be detected following the fragmentation of mixtures containing 0.15% HCl and 0.2% C2H4. C1 UNIV CALIF BERKELEY,DEPT BIOMED & ENVIRONM HLTH SCI,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT MECH ENGN,BERKELEY,CA 94720. RP LUCAS, D (reprint author), LAWRENCE BERKELEY LAB,DIV ENERGY & ENVIRONM,BERKELEY,CA 94720, USA. RI Sawyer, Robert/B-5013-2014; McEnally, Charles/N-9999-2016 OI McEnally, Charles/0000-0002-6820-921X NR 25 TC 11 Z9 11 U1 0 U2 4 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 85 IS 1-6 BP 271 EP 281 DI 10.1080/00102209208947172 PG 11 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA LN383 UT WOS:A1992LN38300017 ER PT J AU CHEN, JY AF CHEN, JY TI A PERFECTLY-STIRRED-REACTION DESCRIPTION OF CHEMISTRY IN TURBULENT NONPREMIXED COMBUSTION OF METHANE IN AIR SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE COMBUSTION; TURBULENCE; CHEMISTRY C1 UNIV CALIF BERKELEY,DEPT MECH ENGN,BERKELEY,CA 94720. RP CHEN, JY (reprint author), SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94550, USA. NR 8 TC 8 Z9 8 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 84 IS 1-6 BP 45 EP 50 DI 10.1080/00102209208951844 PG 6 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA JN439 UT WOS:A1992JN43900004 ER PT J AU BAYLISS, A LEAF, GK MATKOWSKY, BJ AF BAYLISS, A LEAF, GK MATKOWSKY, BJ TI PULSATING AND CHAOTIC DYNAMICS NEAR THE EXTINCTION LIMIT SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article ID PSEUDO-SPECTRAL METHOD; TUBULAR FLAME; PREMIXED FLAMES; LAMINAR FLAMES; COMBUSTION; EQUATIONS; STABILITY; SYSTEMS AB We numerically solve the problem of a premixed flame in the region between two concentric cylinders, in which the combustible mixture is fed in through the inner cylinder, and combustion products are removed through the outer cylinder and through the sides. We employ a model which accounts for the full coupling between fluid and transport effects and chemical reactions. The model accounts for heat loss through both the outer and inner cylindrical walls. We find that as heat loss is increased or as the inflow velocity is decreased, a transition from stationary to pulsating combustion occurs prior to extinction. For certain parameter ranges a transition to apparently chaotic dynamics occurs via a period doubling cascade. C1 ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439. RP BAYLISS, A (reprint author), NORTHWESTERN UNIV,DEPT ENGN SCI & APPL MATH,EVANSTON,IL 60208, USA. RI Bayliss, Alvin/B-7337-2009; Matkowsky, Bernard/B-7371-2009 NR 46 TC 9 Z9 9 U1 0 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 84 IS 1-6 BP 253 EP 278 DI 10.1080/00102209208951856 PG 26 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA JN439 UT WOS:A1992JN43900016 ER PT J AU BECHTOLD, JK MARGOLIS, SB AF BECHTOLD, JK MARGOLIS, SB TI THE STRUCTURE OF SUPERCRITICAL DIFFUSION FLAMES WITH ARRHENIUS MASS DIFFUSIVITIES SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article ID ASYMPTOTIC THEORY; HIGH-PRESSURES; COMBUSTION; EXTINCTION; IGNITION C1 SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94551. NR 20 TC 5 Z9 5 U1 0 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 83 IS 4-6 BP 257 EP 290 DI 10.1080/00102209208951836 PG 34 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA HZ957 UT WOS:A1992HZ95700007 ER PT J AU KOSHLAND, CP FISHER, EM LUCAS, D AF KOSHLAND, CP FISHER, EM LUCAS, D TI THERMAL-DESTRUCTION OF SOME CHLORINATED C-1 AND C-2 HYDROCARBONS SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article; Proceedings Paper CT 1990 ANNUAL MEETING OF THE AMERICAN INST OF CHEMICAL ENGINEERS CY NOV 11-16, 1990 CL CHICAGO, IL SP AMER INST CHEM ENGINEERS DE CHLORINATED HYDROCARBONS; THERMAL DESTRUCTION; INCINERATION ID HAZARDOUS-WASTE; INCINERATION; DICHLOROMETHANE; FLAMES C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV APPL SCI,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT MECH ENGN,BERKELEY,CA 94720. RP KOSHLAND, CP (reprint author), UNIV CALIF BERKELEY,DEPT BIOMED & ENVIRONM HLTH SCI,BERKELEY,CA 94720, USA. NR 25 TC 8 Z9 8 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 82 IS 1-6 BP 49 EP 65 DI 10.1080/00102209208951812 PG 17 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA HN616 UT WOS:A1992HN61600005 ER PT J AU KIEFER, JH SIDHU, SS KERN, RD XIE, K CHEN, H HARDING, LB AF KIEFER, JH SIDHU, SS KERN, RD XIE, K CHEN, H HARDING, LB TI THE HOMOGENEOUS PYROLYSIS OF ACETYLENE .2. THE HIGH-TEMPERATURE RADICAL CHAIN MECHANISM SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article; Proceedings Paper CT 1990 ANNUAL MEETING OF THE AMERICAN INST OF CHEMICAL ENGINEERS CY NOV 11-16, 1990 CL CHICAGO, IL SP AMER INST CHEM ENGINEERS ID BOND-DISSOCIATION ENERGY; C-H; THERMAL-DECOMPOSITION; KINETIC SPECTROSCOPY; RATE-CONSTANT; C4H; C2H; PHOTODISSOCIATION; IDENTIFICATION; DIACETYLENE C1 UNIV NEW ORLEANS, DEPT CHEM, NEW ORLEANS, LA 70148 USA. ARGONNE NATL LAB, DIV CHEM, THEORET CHEM GRP, ARGONNE, IL 60439 USA. RP KIEFER, JH (reprint author), UNIV ILLINOIS, DEPT CHEM ENGN, CHICAGO, IL 60607 USA. NR 75 TC 102 Z9 103 U1 2 U2 16 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 82 IS 1-6 BP 101 EP 130 DI 10.1080/00102209208951815 PG 30 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA HN616 UT WOS:A1992HN61600008 ER PT J AU DANDY, DS VOSEN, SR AF DANDY, DS VOSEN, SR TI NUMERICAL AND EXPERIMENTAL STUDIES OF HYDROXYL RADICAL CHEMILUMINESCENCE IN METHANE-AIR FLAMES SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article; Proceedings Paper CT 1990 ANNUAL MEETING OF THE AMERICAN INST OF CHEMICAL ENGINEERS CY NOV 11-16, 1990 CL CHICAGO, IL SP AMER INST CHEM ENGINEERS ID BURNING VELOCITY; PREDICTION; MIXTURES RP DANDY, DS (reprint author), SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94551, USA. RI Dandy, David/G-6984-2012 OI Dandy, David/0000-0003-3254-0717 NR 27 TC 76 Z9 78 U1 1 U2 6 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 82 IS 1-6 BP 131 EP 150 DI 10.1080/00102209208951816 PG 20 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA HN616 UT WOS:A1992HN61600009 ER PT J AU KERSTEIN, AR AF KERSTEIN, AR TI LINEAR-EDDY MODELING OF TURBULENT TRANSPORT .4. STRUCTURE OF DIFFUSION FLAMES SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article ID JETS; ENTRAINMENT RP KERSTEIN, AR (reprint author), SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94551, USA. NR 28 TC 47 Z9 49 U1 1 U2 5 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1992 VL 81 IS 1-3 BP 75 EP 96 DI 10.1080/00102209208951794 PG 22 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA HM179 UT WOS:A1992HM17900004 ER PT J AU SMIT, DJ AF SMIT, DJ TI SUMMATIONS OVER EQUILATERALLY TRIANGULATED SURFACES AND THE CRITICAL STRING MEASURE SO COMMUNICATIONS IN MATHEMATICAL PHYSICS LA English DT Article ID PARTITION-FUNCTION; MODULI SPACE; DETERMINANTS; OPERATORS; GRAVITY; CURVES; FIELD AB We propose a new approach to the summation over dynamically triangulated Riemann surfaces which does not rely on properties of the potential in a matrix model. Instead, we formulate a purely algebraic discretization of critical string path integral. This is combined with a technique which assigns to each equilateral triangulation of a two-dimensional surface a Riemann surface defined over a certain finite extension of the field of rational numbers, i.e. an arithmetic surface. Thus we establish a new formulation in which the sum over randomly triangulated surfaces defines an invariant measure on the moduli space of arithmetic surfaces. It is shown that because of this it is far from obvious that this measure for large genera approximates the measure defined by the continuum theory, i.e. Liouville theory or critical string theory. In low genus this subtlety does not exist. In the case of critical string theory we explicitly compute the volume of the moduli space of arithmetic surfaces in terms of the modular height function and show that for low genus it approximates correctly the continuum measure. We also discuss a continuum limit which bears some resemblance with a double scaling limit in matrix models. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,THEORET PHYS GRP,BERKELEY,CA 94720. RP SMIT, DJ (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 46 TC 5 Z9 6 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0010-3616 J9 COMMUN MATH PHYS JI Commun. Math. Phys. PD JAN PY 1992 VL 143 IS 2 BP 253 EP 285 DI 10.1007/BF02099009 PG 33 WC Physics, Mathematical SC Physics GA GZ510 UT WOS:A1992GZ51000003 ER PT J AU CHERN, IL COLIN, T KAPER, HG AF CHERN, IL COLIN, T KAPER, HG TI CLASSICAL-SOLUTIONS OF THE NONDIVERGENT BAROTROPIC EQUATIONS ON THE SPHERE SO COMMUNICATIONS IN PARTIAL DIFFERENTIAL EQUATIONS LA English DT Article DE NONDIVERGENT BAROTROPIC EQUATIONS ON THE SPHERE; CLASSICAL SOLUTIONS; GLOBAL EXISTENCE; UNIQUENESS; REGULARITY PROPERTIES; HOLDER ESTIMATES; SCHAUDER FIXED-POINT THEOREM AB The nondivergent barotropic equations on the sphere provide the simplest mathematical model for the description of large-scale horizontal motions of the atmosphere. This article is concerned with the global existence, uniqueness, and regularity properties of classical solutions of these equations. The proofs are based on Holder estimates of the solutions. RP CHERN, IL (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439, USA. NR 9 TC 1 Z9 1 U1 0 U2 1 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0360-5302 J9 COMMUN PART DIFF EQ JI Commun. Partial Differ. Equ. PY 1992 VL 17 IS 5-6 BP 1001 EP 1019 DI 10.1080/03605309208820874 PG 19 WC Mathematics, Applied; Mathematics SC Mathematics GA JH659 UT WOS:A1992JH65900015 ER PT J AU DOSKEY, PV UGOAGWU, BJ AF DOSKEY, PV UGOAGWU, BJ TI MACRONUTRIENT CHEMISTRY OF POLLEN SO COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS LA English DT Article ID DEPOSITION; SITE AB Concentrations of total and water-extractable macronutrients varied with pollen species and genus. Total nitrogen and organic carbon levels were found to be greater in Ambrosia than Pinus. The same trends were not observed for total sulfur or phosphorus. About 60% of the sulfur in Pinus pollen was water-extractable, while the proportion in Ambrosia was only 5%. Trends for nitrate were similar, but the portion that was water-extractable was lower by an order of magnitude. Nitrate levels were highest in Wisconsin pollen, indicating that levels of this nutrient may be related to region of origin. The proportion of phosphate to total phosphorus, approximately 60%, was fairly similar for all species of pollen. Potassium concentrations were consistently lower in the commercially available pollen, which may indicate that the levels of this nutrient are sensitive to sample handling and storage procedures. Water-extractable nutrients probably represent a nutrient reserve that is used during pollen tube formation and to stimulate development of seeds. RP DOSKEY, PV (reprint author), ARGONNE NATL LAB,DIV ENVIRONM RES,ARGONNE,IL 60439, USA. NR 14 TC 8 Z9 9 U1 1 U2 7 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0010-3624 J9 COMMUN SOIL SCI PLAN JI Commun. Soil Sci. Plant Anal. PY 1992 VL 23 IS 1-2 BP 15 EP 23 DI 10.1080/00103629209368566 PG 9 WC Agronomy; Plant Sciences; Chemistry, Analytical; Soil Science SC Agriculture; Plant Sciences; Chemistry GA HD218 UT WOS:A1992HD21800002 ER PT J AU BOWMAN, KO KASTENBAUM, MA SHENTON, LR AF BOWMAN, KO KASTENBAUM, MA SHENTON, LR TI THE NEGATIVE HYPERGEOMETRIC DISTRIBUTION AND ESTIMATION BY MOMENTS SO COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION LA English DT Article DE ASYMPTOTICS; COETS; JOINT EFFICIENCY; MOMENT ESTIMATORS; ORTHOGONALITY PROPERTIES; PADE APPROXIMANTS AB An exact evaluation of the joint efficiency of the method of moments is given, along with a study of properties of the moment estimation for the basic beta distribution parameters. Series are derived for the first four moments of the moment estimators; summation techniques are required for evaluations, and simulation approaches are used for validation. C1 OAK RIDGE NATL LAB,DIV ENGN PHYS & MATH,MATH SCI SECT,OAK RIDGE,TN 37831. UNIV GEORGIA,ATHENS,GA 30602. NR 9 TC 3 Z9 3 U1 0 U2 0 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 0361-0918 J9 COMMUN STAT SIMULAT JI Commun. Stat.-Simul. Comput. PY 1992 VL 21 IS 2 BP 301 EP 332 DI 10.1080/03610919208813021 PG 32 WC Statistics & Probability SC Mathematics GA HN381 UT WOS:A1992HN38100002 ER PT J AU WAN, LD LU, GR YOUNG, BL DU, DS AF WAN, LD LU, GR YOUNG, BL DU, DS TI UNIFIED MODEL OF METACOLOR INTERACTION SO COMMUNICATIONS IN THEORETICAL PHYSICS LA English DT Article ID GAUGE-THEORIES; PREON MODELS; COMPLEMENTARITY; LATTICE AB Unified composite model in which the metacolor symmetry group and the standard model group are embedded in a single group of the SU(N) type and unified above a certain energy scale are constructed. Such unification scheme provides constraints to the composite model building. The proposed models are analyzed in terms of the complementarity principle to show that they satisfy the physics Higgs phase criterion. In order to obtain a metacolor scale of the order of a few tens TeV, the rank of the unification group is restricted. C1 IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011. ACAD SINICA,INST HIGH ENERGY PHYS,BEIJING 100039,PEOPLES R CHINA. IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011. RP WAN, LD (reprint author), HENAN NORMAL UNIV,DEPT PHYS,XIN XIANG 453002,PEOPLES R CHINA. NR 26 TC 0 Z9 0 U1 0 U2 0 PU HUAZHONG UNIV SCI TECH PRESS PI WUHAN PA WUHAN, PEOPLES R CHINA SN 0253-6102 J9 COMMUN THEOR PHYS JI Commun. Theor. Phys. PY 1992 VL 17 IS 3 BP 343 EP 354 PG 12 WC Physics, Multidisciplinary SC Physics GA JF919 UT WOS:A1992JF91900011 ER PT J AU EBBE, S MAURER, H AF EBBE, S MAURER, H TI SIZE AND PLOIDY OF RABBIT MEGAKARYOCYTES IN DIETARY HYPERCHOLESTEROLEMIA SO COMPARATIVE HAEMATOLOGY INTERNATIONAL LA English DT Article DE HYPERCHOLESTEROLEMIA; MEGAKARYOCYTE; PLOIDY; RABBIT ID PLATELET-FUNCTION; ABNORMALITIES; MICE; RATS; ATHEROSCLEROSIS; VOLUME AB The number and sizes of blood platelets, the blood volume, and the sizes and ploidies of megakaryocytes were measured in New Zealand white rabbits that were hypercholesterolaemic as a result of a high cholesterol diet (0.5% cholesterol + 2% peanut oil) that was continued for as long as 19 weeks. Mean platelet volumes were lower than normal, but platelet counts, platelet mass/mul of blood, and blood volumes were normal. The ploidy distribution of megakaryocytes was normal, with 32N being the predominant ploidy group in both hyper- and normocholesterolaemic animals. The average sizes of all mature megakaryocytes and of those within the 16N ploidy group were less than normal. These findings suggest that hyperlipidaemia somehow limits the expansion of megakaryocyte cytoplasm and causes it to fragment into platelets of smaller than normal size. C1 UNIV CALIF SAN FRANCISCO,DEPT LAB MED,SAN FRANCISCO,CA 94143. RP EBBE, S (reprint author), LAWRENCE BERKELEY LAB,BLDG 74,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. NR 30 TC 4 Z9 4 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0938-7714 J9 COMP HAEMATOL INT JI Comp. Haematol. Int. PY 1992 VL 2 IS 4 BP 208 EP 212 DI 10.1007/BF00216096 PG 5 WC Hematology SC Hematology GA KW038 UT WOS:A1992KW03800005 ER PT J AU ROSS, FE FINK, RL AF ROSS, FE FINK, RL TI OVERVIEW OF FFOL - FDDI FOLLOW-ON LAN SO COMPUTER COMMUNICATIONS LA English DT Review DE FDDI; FFOL; STANDARDS; ETHERNET; TOKEN RING AB FDDI has gained wide acceptance as the follow-on LAN for Ethernet (IEEE 802.3) and Token Ring (IEEE 802.5) LANs as higher performance is required. FDDI, including FDDI-II isochronous services, will be widely deployed in the 1990s as both a backbone and desktop distribution LAN. But what will follow FDDI? Task Group X3T9.5 of ANSI's Accredited Standards Committee (ASC) X3, the standards committee that developed and standardized FDDI, has initiated work on an FDDI Follow-On LAN project, called FFOL, to capitalize on the high degree of consensus that exists today for FDDI. FFOL will include both FDDI and FDDI-II services and will address the key issues for next generation networking and communications systems: interfacing to the SONET/Synchronous Digital Hierarchy, as well as ATM/BISDN services. This paper serves as an introduction to FFOL, focusing on FFOL requirements, project organization, and the architecture of the FFOL. Future papers in this continuing series will address specific components of the FFOL standard. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RP ROSS, FE (reprint author), TIMEPLEX INC,WOODCLIFF LAKE,NJ 07675, USA. NR 3 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0140-3664 J9 COMPUT COMMUN JI Comput. Commun. PD JAN-FEB PY 1992 VL 15 IS 1 BP 5 EP 10 DI 10.1016/0140-3664(92)90040-L PG 6 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA HA187 UT WOS:A1992HA18700002 ER PT J AU EBERHARD, PH SCHNEIDER, OP AF EBERHARD, PH SCHNEIDER, OP TI REFERENCE FUNCTIONS TO DECREASE ERRORS IN MONTE-CARLO INTEGRALS SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article AB Given a set of points generated by Monte Carlo, the accuracy of the Monte Carlo integral of a function f(x) performed using these points can be improved if there are "reference functions", i.e, other functions that can be integrated both analytically and by Monte Carlo using the same points. This statement is shown to be true. Formulae are developed to make practical use of it. Guidelines are given as how to choose reference functions, recommending that there be a linear combination of these functions that approximates the function f(x) as well as possible. Not only the statistical error but also some systematic errors due to biases in the Monte Carlo generator are reduced. Monte Carlo integrations using reference functions may be considered as bridging the pp between numerical and usual Monte Carlo integrations. RP EBERHARD, PH (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 6 TC 2 Z9 2 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD JAN PY 1992 VL 67 IS 3 BP 363 EP 377 DI 10.1016/0010-4655(92)90045-Z PG 15 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA HC299 UT WOS:A1992HC29900001 ER PT J AU EBERHARD, PH SCHNEIDER, OP AF EBERHARD, PH SCHNEIDER, OP TI EXAMPLE OF MONTE-CARLO INTEGRALS WHERE REFERENCE FUNCTIONS ARE USEFUL SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article ID WIDTH; MASS; Z0 AB In the preceding paper, it has been shown that use of reference functions could decrease errors on integrals estimated by Monte Carlo. Here the statement is illustrated by a physics example. It concerns the measurement of the mu+-mu- forward-backward production asymmetry in e+e- interactions, taking radiative corrections and detector distortions into account. The parameters of the detector are chosen arbitrarily just for purpose of illustration. The result using reference functions is about 4 times as accurate as without using them. The reference functions also make the results less sensitive to some biases in the Monte Carlo generator. RP EBERHARD, PH (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 9 TC 2 Z9 2 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD JAN PY 1992 VL 67 IS 3 BP 378 EP 388 DI 10.1016/0010-4655(92)90046-2 PG 11 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA HC299 UT WOS:A1992HC29900002 ER PT J AU RUPP, B SMITH, B WONG, J AF RUPP, B SMITH, B WONG, J TI SEXIE - A MICROCOMPUTER PROGRAM FOR THE CALCULATION OF COORDINATION SHELLS AND GEOMETRIES SO COMPUTER PHYSICS COMMUNICATIONS LA English DT Article DE X-RAY ABSORPTION SPECTROSCOPY; EXAFS; COORDINATION SHELLS; COORDINATION GEOMETRIES; BOND DISTANCE; BOND ANGLES AB We present an easy to use FORTRAN microcomputer program designed to specifically satisfy the needs of the X-ray absorption spectroscopist by providing the shell-by-shell atomic arrangement around a central atom in a form suitable for EXAFS data interpretation. It is easily portable and can be used on PC and Digital Equipment VAX. RP RUPP, B (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,POB 808,LIVERMORE,CA 94551, USA. NR 8 TC 9 Z9 9 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0010-4655 J9 COMPUT PHYS COMMUN JI Comput. Phys. Commun. PD JAN PY 1992 VL 67 IS 3 BP 543 EP 547 DI 10.1016/0010-4655(92)90059-8 PG 5 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA HC299 UT WOS:A1992HC29900015 ER PT J AU JAMSHIDI, M SALMINEN AF JAMSHIDI, M SALMINEN TI MECHATRONICS SO COMPUTERS & ELECTRICAL ENGINEERING LA English DT Editorial Material C1 UNIV NEW MEXICO,DEPT ELECT & COMP ENGN,COMP AIDED DESIGN LAB SYST ROBOT,ALBUQUERQUE,NM 87131. FEDERAT FINNISH MET ENGN & ELEROTECH IND,HELSINKI,FINLAND. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544. OAK RIDGE NATL LAB,OAK RIDGE,TN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0045-7906 J9 COMPUT ELECTR ENG JI Comput. Electr. Eng. PD JAN PY 1992 VL 18 IS 1 BP R5 EP R7 PG 3 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Engineering, Electrical & Electronic SC Computer Science; Engineering GA HD871 UT WOS:A1992HD87100001 ER PT B AU GOLD, LS MANLEY, NB AMES, BN AF GOLD, LS MANLEY, NB AMES, BN BE Clewell, HJ TI QUANTITATIVE AND QUALITATIVE EXTRAPOLATION OF CARCINOGENESIS BETWEEN SPECIES SO CONFERENCE ON CHEMICAL RISK ASSESSMENT IN THE DEPARTMENT OF DEFENSE (DOD): SCIENCE, POLICY, AND PRACTICE LA English DT Proceedings Paper CT Conference on Chemical Risk Assessment in the Department of Defense (DoD) - Science, Policy, and Practice CY APR 09-11, 1991 CL DAYTON, OH SP ARMSTRONG LAB, OCCUPAT & ENVIRONM HLTH DIRECTORATE, TOXICOL DIV, NAVAL MED RES INST, TOXICOL DETACHMENT, ARMY BIOMED RES & DEV LAB, NATL RES COUNCIL COMM TOXICOL C1 LAWRENCE BERKELEY LAB,DIV LIFE SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CONFERENCE GOVERNMENTAL INDUSTRIAL HYGIENISTS PI CINCINNATI PA 6500 GLENWAY AVE, BLDG D-7, CINCINNATI, OH 45211 BN 0-936712-90-2 PY 1992 BP 59 EP 66 PG 8 WC Public, Environmental & Occupational Health; Toxicology SC Public, Environmental & Occupational Health; Toxicology GA BC41F UT WOS:A1992BC41F00011 ER PT J AU VOLD, EL AF VOLD, EL TI MULTIDIMENSIONAL AND MULTIFLUID PLASMA EDGE MODELING - STATUS AND NEW DIRECTIONS SO CONTRIBUTIONS TO PLASMA PHYSICS LA English DT Article; Proceedings Paper CT 3RD INTERNATIONAL WORKSHOP ON PLASMA EDGE THEORY IN FUSION DEVICES CY JUN 22-24, 1992 CL BAD HONNEF, GERMANY ID SCRAPE-OFF LAYER; NEUTRAL ATOM TRANSPORT; TOKAMAK EDGE; IMPURITY TRANSPORT; NUMERICAL-ANALYSES; POLOIDAL DIVERTOR; TOROIDAL LIMITER; DIFFUSION-THEORY; BULK PLASMA; BOUNDARY AB The plasma boundary in magnetic confinement devices is observed in experiments and in computations to contain radial and poloidal variations in plasma potential, strong radial electric fields and large poloidal drift flows in addition to the parallel flow toward the plasma sheath boundaries and the particle recycling from the walls. The global power balence is largely influenced by impurity radiation and thus by impurity transport in the edge region. The behavior of the edge region is related to global confinement in ways not yet fully known and motivates further improvements in edge plasma modelling. General multifluid transport equations are reviewed in the context of the current status of plasma edge modelling. It is assumed that the macroscopic transport in the plasma edge region is suitable for a moments description, or fluid model. Progress is well established in computational treatments of the standard paradigm including classical parallel and anomalous cross-field flux coupled to neutrals in analytic or Monte Carlo steady state computations. Formulation of momentum diffusivities and curvature drift in toroidal coordinates are considered. New directions include defining the dominant influence of drifts and non-ambipolar flows, improving coupled plasma-neutral transport calculations, and treating impurity flow in full multifluid models. Calculation of the plasma potential driving the E x B drift in the scrape-off layer can be extended inside the last closed flux surface by conserving the divergence of the plasma currents. Coupled plasma-neutral fluids using a neutral diffusion approximation show promise for recycling calculations. Impurity transport based on full multifluid treatment along the field lines has shown good agreement with divertor experiments. Advanced topics for the near future include plasma core-edge transport coupling and eventually the direct solution of coupled momentum equations rather than the presently assumed cross-field 'anomalous' flux functions. In the edge region, plasma sheath boundary conditions are a significant sink for plasma particles and heat; a small coupling between the momentum components in the plasma edge can be sufficient to drive an 'anomalously' large efflux from the core plasma. RP VOLD, EL (reprint author), LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544, USA. NR 83 TC 9 Z9 9 U1 0 U2 1 PU AKADEMIE VERLAG GMBH PI BERLIN PA MUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY SN 0863-1042 J9 CONTRIB PLASM PHYS JI Contrib. Plasma Phys. PY 1992 VL 32 IS 3-4 BP 404 EP 421 DI 10.1002/ctpp.2150320336 PG 18 WC Physics, Fluids & Plasmas SC Physics GA JZ143 UT WOS:A1992JZ14300035 ER PT J AU ROGNLIEN, TD MILOVICH, JL RENSINK, ME KAISER, TB AF ROGNLIEN, TD MILOVICH, JL RENSINK, ME KAISER, TB TI SIMULATION OF TOKAMAK DIVERTOR PLASMAS INCLUDING CROSS-FIELD DRIFTS SO CONTRIBUTIONS TO PLASMA PHYSICS LA English DT Article; Proceedings Paper CT 3RD INTERNATIONAL WORKSHOP ON PLASMA EDGE THEORY IN FUSION DEVICES CY JUN 22-24, 1992 CL BAD HONNEF, GERMANY ID SCRAPE-OFF PLASMA; LIMITER AB The effects of plasma currents and cross-field drifts on single null tokamak divertor operation are simulated using a fully implicit 2-D fluid code. Equations solved are those for particle continuity, parallel momentum, electron energy, ion energy, electrostatic potential, and neutral gas diffusion. The core and scrape-off layer regions are separated by a magnetic separatrix, both of which are included in the simulation. The core plasma is poloidally periodic, and the inner and outer private flux regions are properly connected. The code utilizes a fully implicit method-of-lines scheme to advance the variables in time with a Krylov technique or a direct Newton iteration with a numerical Jacobian. Results are presented on the effects of currents and cross-field drifts for DIII-D single-null parameters. RP ROGNLIEN, TD (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 12 TC 2 Z9 2 U1 0 U2 0 PU AKADEMIE VERLAG GMBH PI BERLIN PA MUHLENSTRASSE 33-34, D-13187 BERLIN, GERMANY SN 0863-1042 J9 CONTRIB PLASM PHYS JI Contrib. Plasma Phys. PY 1992 VL 32 IS 3-4 BP 485 EP 490 DI 10.1002/ctpp.2150320347 PG 6 WC Physics, Fluids & Plasmas SC Physics GA JZ143 UT WOS:A1992JZ14300046 ER PT J AU HAMPDENSMITH, MJ WARK, TA BRINKER, CJ AF HAMPDENSMITH, MJ WARK, TA BRINKER, CJ TI THE SOLID-STATE AND SOLUTION STRUCTURES OF TIN(IV) ALKOXIDE COMPOUNDS AND THEIR USE AS PRECURSORS TO FORM TIN OXIDE CERAMICS VIA SOL GEL-TYPE HYDROLYSIS AND CONDENSATION SO COORDINATION CHEMISTRY REVIEWS LA English DT Review ID MONODISPERSE TIO2 POWDERS; METAL ALKOXIDES; TITANIUM TETRAETHOXIDE; ARYLOXIDE LIGATION; CRYSTAL-STRUCTURE; HIGH-PURITY; CENTERS; ACETATE; SNO2 C1 UNIV NEW MEXICO,CTR MICRO ENGN CERAM,ALBUQUERQUE,NM 87131. SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RP HAMPDENSMITH, MJ (reprint author), UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131, USA. NR 87 TC 73 Z9 74 U1 3 U2 24 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0010-8545 J9 COORDIN CHEM REV JI Coord. Chem. Rev. PD JAN PY 1992 VL 112 BP 81 EP 116 DI 10.1016/0010-8545(92)80006-D PG 36 WC Chemistry, Inorganic & Nuclear SC Chemistry GA HE006 UT WOS:A1992HE00600006 ER PT J AU STAPLES, BR HOLCOMB, GR CRAMER, SD AF STAPLES, BR HOLCOMB, GR CRAMER, SD TI CALCULATION OF PH FOR HIGH-TEMPERATURE SULFATE-SOLUTIONS AT HIGH IONIC STRENGTHS SO CORROSION LA English DT Article DE PH; HIGH TEMPERATURE; IONIC STRENGTH; SULFATE; DEBYE-HUCKEL ID ELEVATED-TEMPERATURES; ELECTRODES; SENSORS; SLOPES; WATER AB Corrosion studies at the U.S. Bureau of Mines on stainless steels in acid sulfate solutions prompted the development of procedures to calculate the pH for solutions at temperatures to 300-degrees-C. This general method for calculating the pH of high ionic-strength aqueous solutions at elevated temperatures is an alternative to instrumental Ph measurement techniques and is illustrated for the H2O-NaSO4-H2SO4 system. The pH is calculated from the partial dissociation of HSO4-, while accounting for the buffering effects of completely dissociated Na2SO4 and H2SO4. Modem values for the temperature-dependent second dissociation constant of H2SO4, and the extended Debye-Huckel limiting law slopes are used in the calculations. Uncritical selection of thermodynamic data can result in differences in calculated pH that exceed 0.5 pH units in the temperature range 200 to 300-degrees-C. RP STAPLES, BR (reprint author), US BUR MINES,ALBANY RES CTR,1450 QUEEN AVE SW,ALBANY,OR 97321, USA. RI Holcomb, Gordon/G-9070-2013 OI Holcomb, Gordon/0000-0003-3542-5319 NR 23 TC 4 Z9 4 U1 1 U2 3 PU NATL ASSN CORROSION ENG PI HOUSTON PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 SN 0010-9312 J9 CORROSION JI Corrosion PD JAN PY 1992 VL 48 IS 1 BP 35 EP 41 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA HV958 UT WOS:A1992HV95800006 ER PT J AU BRUEMMER, SM AREY, BW CHARLOT, LA AF BRUEMMER, SM AREY, BW CHARLOT, LA TI INFLUENCE OF CHROMIUM DEPLETION ON INTERGRANULAR STRESS-CORROSION CRACKING OF 304 STAINLESS-STEEL SO CORROSION LA English DT Article DE STRESS CORROSION; SENSITIZATION; PRECIPITATION; GRAIN BOUNDARY AB Direct correlations are made between the extent of chromium depletion at grain boundaries and intergranular stress corrosion cracking (IGSCC) of 304 stainless steel during slow-strain-rate (SSR) tensile tests in 288-degrees-C air-saturated water. IGSCC was found to depend on the minimum chromium concentration, the spacing of carbides, and the width of the chromium-depleted zone at grain boundaries. Modifying any one of these interfacial characteristics impacted intergranular cracking and ductility. Under the conditions of the SSR test, IGSCC sharply increased as the grain boundary chromium concentration dropped below approximately 13.5 wt%. The presence of a semi-continuous distribution of carbides at grain boundaries prompted some intergranular cracking and ductility loss without localized chromium depletion. This cracking was eliminated by heat treating to form isolated carbides at boundaries. Very narrow chromium depletion widths ( < 4 nm) enhanced IGSCC over those observed for stainless steel with semicontinuous carbides. The extent of intergranular cracking and the degree of embrittlement increased with the width of the chromium depletion zone up to a width of approximately 15 nm. RP BRUEMMER, SM (reprint author), PACIFIC NW LAB, POB 999, RICHLAND, WA 99352 USA. NR 22 TC 54 Z9 56 U1 1 U2 5 PU NATL ASSN CORROSION ENG PI HOUSTON PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 SN 0010-9312 J9 CORROSION JI Corrosion PD JAN PY 1992 VL 48 IS 1 BP 42 EP 49 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA HV958 UT WOS:A1992HV95800007 ER PT J AU BAKER, JR BUDINGER, TF HUESMAN, RH AF BAKER, JR BUDINGER, TF HUESMAN, RH TI GENERALIZED-APPROACH TO INVERSE PROBLEMS IN TOMOGRAPHY - IMAGE-RECONSTRUCTION FOR SPATIALLY VARIANT SYSTEMS USING NATURAL PIXELS SO CRITICAL REVIEWS IN BIOMEDICAL ENGINEERING LA English DT Review ID EMISSION COMPUTED-TOMOGRAPHY; DECOMPOSITION; COMPENSATION AB A major limitation in tomographic inverse problems is inadequate computation speed, which frequently impedes the application of engineering ideas and principles in medical science more than in the physical and engineering sciences. Medical problems are computationally taxing because a minimum description of the system often involves 5 dimensions (3 space, 1 energy, 1 time), with the range of each space coordinate requiring up to 512 samples. The computational tasks for this problem can be simply expressed by posing the problem as one in which the tomograph system response function is spatially invariant, and the noise is additive and Gaussian. Under these assumptions, a number of reconstruction methods have been implemented with generally satisfactory results for general medical imaging purposes. However, if the system response function of the tomograph is assumed more realistically to be spatially variant and the noise to be Poisson, the computational problem becomes much more difficult. Some of the algorithms being studied to compensate for position-dependent resolution and statistical fluctuations in the data acquisition process, when expressed in canonical form, are not practical for clinical applications because the number of computations necessary exceeds the capabilities of high-performance computer systems currently available. Reconstruction methods based on natural pixels, specifically orthonormal natural pixels, preserve symmetries in the data acquisition process. Fast implementations of orthonormal natural pixel algorithms can achieve orders of magnitude speedup relative to general implementations. Thus, specialized thought in algorithm development can lead to more significant increases in performance than can be achieved through hardware improvements alone. C1 LAWRENCE BERKELEY LAB,DIV RES MED & RADIAT BIOPHYS,BERKELEY,CA 94720. RP BAKER, JR (reprint author), LAWRENCE BERKELEY LAB,DEPT ELECT ENGN & COMP SCI,BERKELEY,CA 94720, USA. FU NHLBI NIH HHS [HL07367] NR 45 TC 20 Z9 20 U1 0 U2 3 PU BEGELL HOUSE INC PI NEW YORK PA 79 MADISON AVE, SUITE 1205, NEW YORK, NY 10016-7892 SN 0278-940X J9 CRIT REV BIOMED ENG JI Crit. Rev. Biomed. Eng. PY 1992 VL 20 IS 1-2 BP 47 EP 71 PG 25 WC Engineering, Biomedical SC Engineering GA JW315 UT WOS:A1992JW31500003 PM 1424686 ER PT J AU JOHNSTON, WE JACOBSON, VL LOKEN, SC ROBERTSON, DW TIERNEY, BL AF JOHNSTON, WE JACOBSON, VL LOKEN, SC ROBERTSON, DW TIERNEY, BL TI HIGH-PERFORMANCE COMPUTING, HIGH-SPEED NETWORKS, AND CONFIGURABLE COMPUTING ENVIRONMENTS - PROGRESS TOWARD FULLY DISTRIBUTED COMPUTING SO CRITICAL REVIEWS IN BIOMEDICAL ENGINEERING LA English DT Review AB The next several years will see the maturing of a collection of technologies that will enable fully and transparently distributed computing environments. Networks will be used to configure independent computing, storage, and 1/0 elements into ''virtual systems'' that are optimal for solving a particular problem. This environment will make the most powerful computing systems those that are logically assembled from network-based components and will also make those systems available to a widespread audience. Anticipating that the necessary technology and communications infrastructure will be available in the next 3 to 5 years, we are developing and demonstrating prototype applications that test and exercise the currently available elements of this configurable environment. The Lawrence Berkeley Laboratory (LBL) Information and Computing Sciences and Research Medicine Divisions have collaborated with the Pittsburgh Supercomputer Center to demonstrate one distributed application that illuminates the issues and potential of using networks to configure virtual systems. This application allows the interactive visualization of large three-dimensional (3D) scalar fields (voxel data sets) by using a network-based configuration of heterogeneous supercomputers and workstations. The specific test case is visualization of 3D magnetic resonance imaging (MRI) data. The virtual system architecture consists of a Connection Machine-2 (CM-2(TM)) that performs surface reconstruction from the voxel data, a Cray Y-MP(TM) that renders the resulting geometric data into an image, and a workstation that provides the display of the image and the user interface for specifying the parameters for the geometry generation and 3D viewing. These three elements are configured into a virtual system by using several different network technologies. This paper reviews the current status of the software, hardware, and communications technologies that are needed to enable this configurable environment. These interdependent technologies include: (1) user interface and application program construction methodologies, (2) the interprocess communication (IPC) mechanisms used to connect the software modules of the application, (3) the network protocols and interface hardware used by the IPC for communicating between modules running on separate and independent computing system elements, (4) the telecommunications infrastructure that provides the low-level data transfer functions for the networks that connect the geographically distributed elements used by the application, and (5) the nature of the functional elements that will be connected to form virtual systems. RP JOHNSTON, WE (reprint author), LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 25 TC 3 Z9 3 U1 1 U2 1 PU BEGELL HOUSE INC PI NEW YORK PA 79 MADISON AVE, SUITE 1205, NEW YORK, NY 10016-7892 SN 0278-940X J9 CRIT REV BIOMED ENG JI Crit. Rev. Biomed. Eng. PY 1992 VL 20 IS 5-6 BP 315 EP 354 PG 40 WC Engineering, Biomedical SC Engineering GA KF491 UT WOS:A1992KF49100001 PM 1486779 ER PT J AU HENDREY, GR AF HENDREY, GR TI FACE - FREE-AIR CO-2 ENRICHMENT FOR PLANT RESEARCH IN THE FIELD - INTRODUCTION SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Editorial Material RP HENDREY, GR (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 0 TC 37 Z9 38 U1 0 U2 2 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 59 EP 60 DI 10.1080/07352689209382330 PG 2 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700001 ER PT J AU HENDREY, GR AF HENDREY, GR TI GLOBAL GREENHOUSE STUDIES - NEED FOR A NEW APPROACH TO ECOSYSTEM MANIPULATION SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; GLOBAL CHANGE CO-2; ECOSYSTEM MANIPULATION ID ELEVATED ATMOSPHERIC CO2; CARBON-DIOXIDE; TUSSOCK TUNDRA; TEMPERATURE; PHOTOSYNTHESIS; ENRICHMENT; RESPONSES; BALANCE; GROWTH; FIELD RP HENDREY, GR (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 52 TC 22 Z9 23 U1 0 U2 2 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 61 EP 74 DI 10.1080/07352689209382331 PG 14 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700002 ER PT J AU HENDREY, GR AF HENDREY, GR TI THE DOE/USDA FACE PROGRAM - GOAL, OBJECTIVES, AND RESULTS THROUGH 1989 SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE PROGRAM; GOALS; OBJECTIVES; RESULTS; FUMIGATION ID INCREASING CO2; FIELD RP HENDREY, GR (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 11 TC 6 Z9 6 U1 1 U2 1 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 75 EP 83 DI 10.1080/07352689209382332 PG 9 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700003 ER PT J AU ALLEN, LH DRAKE, BG ROGERS, HH SHINN, JH AF ALLEN, LH DRAKE, BG ROGERS, HH SHINN, JH TI FIELD TECHNIQUES FOR EXPOSURE OF PLANTS AND ECOSYSTEMS TO ELEVATED CO-2 AND OTHER TRACE GASES SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FIELD TECHNIQUES; OTC; SPAR; FACE; COMPARISON ID OPEN-TOP CHAMBERS; ATMOSPHERIC CO2 ENRICHMENT; WATER-VAPOR EXCHANGE; CARBON-DIOXIDE CONCENTRATIONS; OPEN-AIR FUMIGATION; ESTUARINE MARSH; TRANSPIRATION RESPONSES; VENTILATED CHAMBER; SOYBEAN CANOPIES; PORTABLE CHAMBER C1 SMITHSONIAN ENVIRONM RES LABS,EDGEWATER,MD 21037. AUBURN UNIV,USDA ARS,AUBURN,AL 36831. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. RP ALLEN, LH (reprint author), UNIV FLORIDA,USDA ARS,GAINESVILLE,FL 32611, USA. NR 207 TC 60 Z9 61 U1 1 U2 5 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 85 EP 119 DI 10.1080/07352689209382333 PG 35 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700004 ER PT J AU LEWIN, KF HENDREY, GR KOLBER, Z AF LEWIN, KF HENDREY, GR KOLBER, Z TI BROOKHAVEN NATIONAL LABORATORY FREE-AIR CARBON-DIOXIDE ENRICHMENT FACILITY SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; BROOKHAVEN; CO-2; DESIGN; MARICOPA RP LEWIN, KF (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 6 TC 62 Z9 63 U1 1 U2 4 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 135 EP 141 DI 10.1080/07352689209382335 PG 7 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700006 ER PT J AU LIPFERT, FW ALEXANDER, Y HENDREY, GR LEWIN, KF NAGY, J AF LIPFERT, FW ALEXANDER, Y HENDREY, GR LEWIN, KF NAGY, J TI PERFORMANCE ANALYSIS OF THE BNL FACE GAS INJECTION SYSTEM SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; FLUID DYNAMICS; PERFORMANCE; EFFICIENCY ID EXPOSURE C1 ISRAEL INST BIOL RES,DEPT MATH,IL-70450 NESS ZIONA,ISRAEL. RP LIPFERT, FW (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 7 TC 5 Z9 5 U1 0 U2 0 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 143 EP 163 DI 10.1080/07352689209382336 PG 21 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700007 ER PT J AU NAGY, J LEWIN, KF HENDREY, GR LIPFERT, FW DAUM, ML AF NAGY, J LEWIN, KF HENDREY, GR LIPFERT, FW DAUM, ML TI FACE FACILITY ENGINEERING PERFORMANCE IN 1989 SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; FACILITY; ENGINEERING; OPERATIONS; CONTROL RP NAGY, J (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 3 TC 14 Z9 15 U1 0 U2 0 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 165 EP 185 DI 10.1080/07352689209382337 PG 21 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700008 ER PT J AU HILEMAN, DR BHATTACHARYA, NC GHOSH, PP BISWAS, PK ALLEN, LH LEWIN, KF HENDREY, GR AF HILEMAN, DR BHATTACHARYA, NC GHOSH, PP BISWAS, PK ALLEN, LH LEWIN, KF HENDREY, GR TI DISTRIBUTION OF CARBON-DIOXIDE WITHIN AND ABOVE A COTTON CANOPY GROWING IN THE FACE SYSTEM SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; SPATIAL; DISTRIBUTION; COTTON C1 UNIV FLORIDA,USDA ARS,GAINESVILLE,FL 32611. BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. TUSKEGEE UNIV,DEPT PLANT & SOIL SCI,TUSKEGEE,AL 36088. RP HILEMAN, DR (reprint author), TUSKEGEE UNIV,DEPT BIOL,TUSKEGEE,AL 36088, USA. NR 0 TC 5 Z9 5 U1 0 U2 0 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 187 EP 194 DI 10.1080/07352689209382338 PG 8 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700009 ER PT J AU EVANS, LS HENDREY, GR AF EVANS, LS HENDREY, GR TI RESPONSES OF COTTON FOLIAGE TO SHORT-TERM FLUCTUATIONS IN CO-2 PARTIAL PRESSURES SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE SHORT-TERM; FACE; CO-2; COTTON; RESPONSE ID C-3 PLANTS; PHOTOSYNTHESIS; CO2; LEAVES; TEMPERATURE C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. RP EVANS, LS (reprint author), MANHATTAN COLL,PLANT MORPHOGENESIS LAB,BRONX,NY 10471, USA. NR 10 TC 5 Z9 5 U1 0 U2 3 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 203 EP 212 PG 10 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700011 ER PT J AU MAUNEY, JR LEWIN, KF HENDREY, GR KIMBALL, BA AF MAUNEY, JR LEWIN, KF HENDREY, GR KIMBALL, BA TI GROWTH AND YIELD OF COTTON EXPOSED TO FREE-AIR CO-2 ENRICHMENT (FACE) SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; COTTON; GROWTH; YIELD ID WATER RELATIONS; CARBON C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. US WATER CONSERVAT LAB,PHOENIX,AZ 85040. RP MAUNEY, JR (reprint author), WESTERN COTTON RES LAB,4135 E BROADWAY,PHOENIX,AZ 85040, USA. NR 12 TC 19 Z9 20 U1 0 U2 0 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 213 EP 222 DI 10.1080/07352689209382341 PG 10 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700012 ER PT J AU HILEMAN, DR BHATTACHARYA, NC GHOSH, PP BISWAS, PK LEWIN, KF HENDREY, GR AF HILEMAN, DR BHATTACHARYA, NC GHOSH, PP BISWAS, PK LEWIN, KF HENDREY, GR TI RESPONSES OF PHOTOSYNTHESIS AND STOMATAL CONDUCTANCE TO ELEVATED CARBON-DIOXIDE IN FIELD-GROWN COTTON SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; PHOTOSYNTHESIS; STOMATAL ID NITROGEN DEFICIENCY; WATER RELATIONS; CO2 ENRICHMENT; PLANTS; SUNFLOWER; BEHAVIOR; SORGHUM C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. TUSKEGEE UNIV,DEPT PLANT & SOIL SCI,TUSKEGEE,AL 36088. RP HILEMAN, DR (reprint author), TUSKEGEE UNIV,DEPT BIOL,TUSKEGEE,AL 36088, USA. NR 17 TC 13 Z9 13 U1 1 U2 4 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 227 EP 231 DI 10.1080/07352689209382343 PG 5 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700014 ER PT J AU ROGERS, HH PRIOR, SA ONEILL, EG AF ROGERS, HH PRIOR, SA ONEILL, EG TI COTTON ROOT AND RHIZOSPHERE RESPONSES TO FREE-AIR CO-2 ENRICHMENT SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review DE FACE; CO-2; COTTON; ROOT; RHIZOSPHERE ID CARBON-DIOXIDE; GROWTH; SOIL; CO2; AGRICULTURE; INFECTION; WHEAT; YIELD C1 OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831. AUBURN UNIV,USDA ARS,AUBURN,AL 36831. RP ROGERS, HH (reprint author), NATL SOIL DYNAM LAB,POB 792,AUBURN,AL 36831, USA. NR 42 TC 58 Z9 62 U1 0 U2 5 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 251 EP 263 DI 10.1080/07352689209382346 PG 13 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700017 ER PT J AU KIMBALL, BA LAMORTE, RL PERESTA, GJ MAUNEY, JR LEWIN, KF HENDREY, GR AF KIMBALL, BA LAMORTE, RL PERESTA, GJ MAUNEY, JR LEWIN, KF HENDREY, GR TI WEATHER, SOILS, CULTURAL-PRACTICES, AND COTTON GROWTH DATA FROM THE 1989 FACE EXPERIMENT IN IBSNAT FORMAT SO CRITICAL REVIEWS IN PLANT SCIENCES LA English DT Review ID HYDRAULIC CONDUCTIVITY; MODEL; CROP C1 WESTERN COTTON RES LAB,PHOENIX,AZ 85040. BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. RP KIMBALL, BA (reprint author), US WATER CONSERVAT LAB,4331 E BROADWAY,PHOENIX,AZ 85040, USA. NR 31 TC 18 Z9 18 U1 0 U2 0 PU CRC PRESS INC PI BOCA RATON PA 2000 CORPORATE BLVD NW, JOURNALS CUSTOMER SERVICE, BOCA RATON, FL 33431 SN 0735-2689 J9 CRIT REV PLANT SCI JI Crit. Rev. Plant Sci. PY 1992 VL 11 IS 2-3 BP 271 EP 308 DI 10.1080/07352689209382348 PG 38 WC Plant Sciences SC Plant Sciences GA JW197 UT WOS:A1992JW19700019 ER PT J AU GREEN, MA SMOOT, GF AF GREEN, MA SMOOT, GF TI THE ASTROMAG SUPERCONDUCTING MAGNET FACILITY CONFIGURED FOR A FREE-FLYING SATELLITE SO CRYOGENICS LA English DT Article; Proceedings Paper CT 10TH SPACE CRYOGENICS WORKSHOP CY JUN 18-20, 1991 CL NASA LEWIS RES CTR, CLEVELAND, OH SP NASA, HEADQUARTERS OFF AERONAUT EXPLORAT & TECHNOL HO NASA LEWIS RES CTR DE SPACE CRYOGENICS; SUPERCONDUCTING MAGNETS; ASTROMAG AB ASTROMAG is a particle astrophysics facility that was originally configured for the Space Station. The heart of the ASTROMAG facility is a large superconducting magnet which is cooled using superfluid helium. The task of resizing the facility so that it will fly in a satellite in a high angle of inclination orbit is driven by the launch weight capability of the launch rocket and the desire to be able to do nearly the same physics as the Space Station version of ASTROMAG. In order to reduce the launch weight, the magnet and its cryogenic system had to be downsized, yet the integrated field generated by the magnet in the particle detectors has to match the Space Station version of the magnet. The use of aluminium matrix superconductor and oriented composite materials in the magnet insulation permits one to achieve this goal. The net magnetic dipole moment from the ASTROMAG magnet must be small to minimize the torque due to interaction with the earth's magnetic field. The ASTROMAG magnet consists of two identical coils 1.67 m apart. The two coils are connected in series in persistent mode. Each coil is designed to carry 2.34 million ampere turns. Both coils are mounted on the same magnetic axis and they operate at opposite polarity. This reduces the dipole moment by a factor of more than 1000. This is tolerable for the Space Station version of the magnet. A magnet operating on a free-flying satellite requires additional compensation. This report presents the magnet parameters of a free-flying version of ASTROMAG and the parameters of the space cryogenic system for the magnet. RP GREEN, MA (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 11 TC 3 Z9 3 U1 0 U2 4 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 2 BP 91 EP 97 DI 10.1016/0011-2275(92)90249-A PG 7 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA HC122 UT WOS:A1992HC12200004 ER PT J AU GREEN, MA AF GREEN, MA TI HELIUM COOLING SYSTEMS FOR LARGE SUPERCONDUCTING PHYSICS DETECTOR MAGNETS SO CRYOGENICS LA English DT Article; Proceedings Paper CT 14TH INTERNATIONAL CRYOGENIC ENGINEERING CONF ( ICEC 14 ) / INTERNATIONAL CRYOGENIC MATERIALS CONF ( ICMC ) : CRYOGENIC ENGINEERING & SUPERCONDUCTOR TECHNOLOGY CY JUN 08-12, 1992 CL KIEV, UKRAINE AB The large superconducting detector magnets used for high energy physics experiments are virtually all indirectly cooled. In general, these detector magnets are not cryogenically stabilized. Therefore, there are a number of choices for cooling large indirectly cooled detector magnets. These choices include; 1) forced two-phase helium cooling driven by the helium refrigerator J-T circuit, 2) forced two-phase helium cooling driven by a helium pump, and 3) a peculation gravity feed cooling system which uses liquid helium from a large storage dewar. The choices for the cooling of a large detector magnet are illustrated by applying these concepts to a 4.2 meter diameter 0.5 tesla thin superconducting solenoid for an experiment at the Relativistic Heavy Ion Collider (RHIC). RP GREEN, MA (reprint author), LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 5 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 SU S BP 126 EP 129 DI 10.1016/0011-2275(92)90124-S PG 4 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JZ400 UT WOS:A1992JZ40000031 ER PT J AU GREEN, MA AF GREEN, MA TI SUPERCONDUCTING DIPOLE-MOMENT CORRECTION COILS FOR A FREE-FLYING VERSION OF ASTROMAG SO CRYOGENICS LA English DT Article; Proceedings Paper CT 14TH INTERNATIONAL CRYOGENIC ENGINEERING CONF ( ICEC 14 ) / INTERNATIONAL CRYOGENIC MATERIALS CONF ( ICMC ) : CRYOGENIC ENGINEERING & SUPERCONDUCTOR TECHNOLOGY CY JUN 08-12, 1992 CL KIEV, UKRAINE AB ASTROMAG is a particle astrophysics experiment which will operate in space for a period of two years or more. Momentum and charge resolution of cosmic rays is achieved using particle detectors in a magnetic field. In the ASTROMAG experiment, this magnetic field is provided by a pair of superconducting solenoids. The ASTROMAG superconducting magnet is supposed to have a zero net magnetic dipole moment so that magnetic torques introduced to the space craft are kept at a low level. Dipole moment correction coils, which can provide up to 11,000 Am2 of correction in the Z direction and 7,000 Am2 of correction in the X and Y directions, appear to be practical using superconducting correction coils which are mounted on the superfluid helium tank in a region 0.5 meters wide halfway between the main ASTROMAG coils. The superconducting dipole moment correction coils should be capable of reducing the ASTROMAG magnet net dipole moment to 100 Am-2 or lower. RP GREEN, MA (reprint author), LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 2 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 SU S BP 332 EP 335 DI 10.1016/0011-2275(92)90175-A PG 4 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JZ400 UT WOS:A1992JZ40000082 ER PT J AU CHRISTEN, DK DYNES, RC EMERY, VJ FALCO, CM GUBSER, DU JIN, S KROGER, H SHAW, DT AF CHRISTEN, DK DYNES, RC EMERY, VJ FALCO, CM GUBSER, DU JIN, S KROGER, H SHAW, DT TI NEW RESEARCH OPPORTUNITIES IN SUPERCONDUCTIVITY .3. COPPER MOUNTAIN, COLORADO, USA, 19-20 AUGUST 1991 SO CRYOGENICS LA English DT Article C1 UNIV CALIF SAN DIEGO,SAN DIEGO,CA 92103. BROOKHAVEN NATL LAB,UPTON,NY 11973. UNIV ARIZONA,TUCSON,AZ 85721. OFF NAVAL RES,ARLINGTON,VA 22217. AT&T BELL LABS,MURRAY HILL,NJ 07974. SUNY BUFFALO,BUFFALO,NY 14260. RP CHRISTEN, DK (reprint author), OAK RIDGE NATL LAB,OAK RIDGE,TN 37830, USA. NR 0 TC 3 Z9 3 U1 0 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 4 BP 338 EP 352 DI 10.1016/0011-2275(92)90052-C PG 15 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA HJ741 UT WOS:A1992HJ74100001 ER PT J AU ASH, WW BARRERA, F BURGESS, W COOK, K CUTLER, H FERRIE, J PETERSEN, H SAWYER, D RINTA, R AF ASH, WW BARRERA, F BURGESS, W COOK, K CUTLER, H FERRIE, J PETERSEN, H SAWYER, D RINTA, R TI SUPERCONDUCTING FINAL FOCUS FOR THE SLAC LINEAR COLLIDER SO CRYOGENICS LA English DT Article; Proceedings Paper CT 14TH INTERNATIONAL CRYOGENIC ENGINEERING CONF ( ICEC 14 ) / INTERNATIONAL CRYOGENIC MATERIALS CONF ( ICMC ) : CRYOGENIC ENGINEERING & SUPERCONDUCTOR TECHNOLOGY CY JUN 08-12, 1992 CL KIEV, UKRAINE AB Triplets composed of superconducting quadrupoles have been built and installed as the final focusing element for the high-energy positron and electron beams of the SLAC Linear Collider. Special features include independent alignment to 100-micron tolerance inside a common cryostat; non-magnetic materials to allow operation inside the detector's solenoid field; a continuous-flow helium-only system using 50-meter-long flexible transfer lines; and complete operation of the system before installation. The mechanical design and cryogenic operation experience are presented. RP ASH, WW (reprint author), STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,DIV RES,STANFORD,CA 94309, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 SU S BP 344 EP 347 DI 10.1016/0011-2275(92)90178-D PG 4 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JZ400 UT WOS:A1992JZ40000085 ER PT J AU SEOL, SY CHYU, MC KUZAY, TM HULL, JR AF SEOL, SY CHYU, MC KUZAY, TM HULL, JR TI MINIMIZATION OF REFRIGERATION POWER REQUIREMENTS FOR MECHANICAL SUPPORTS IN CRYOGENIC SYSTEMS SO CRYOGENICS LA English DT Article DE REFRIGERATION; POWER REQUIREMENTS; MECHANICAL SUPPORTS AB A solution scheme is presented for minimization of the refrigeration power required for mechanical supports in cryogenic systems where refrigeration shields at intermediate temperatures are installed along the supports. The total refrigeration power requirement is minimized in terms of the temperatures and locations of the shields. The scheme involves the simultaneous solution of algebraic equations and is simpler than previous methods. Tabular solutions for optimal shield temperatures and locations are presented for several materials. C1 ARGONNE NATL LAB,DIV MAT & COMPONENTS TECHNOL,ARGONNE,IL 60439. RP SEOL, SY (reprint author), TEXAS TECH UNIV,DEPT MECH ENGN,LUBBOCK,TX 79409, USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 4 BP 409 EP 411 DI 10.1016/0011-2275(92)90062-F PG 3 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA HJ741 UT WOS:A1992HJ74100011 ER PT J AU DRESNER, L AF DRESNER, L TI GORTER MELLINK PULSED-SOURCE PROBLEM IN CYLINDRICAL AND SPHERICAL GEOMETRY SO CRYOGENICS LA English DT Article; Proceedings Paper CT 2ND UNITED-STATES / JAPAN JOINT SEMINAR ON BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED INFLUENCE ON STABILITY OF SUPERCONDUCTING MAGNETS CY AUG 26-30, 1991 CL LOS ANGELES, CA DE HEAT DIFFUSION; PULSED-SOURCE PROBLEM; GORTER MELLINK RELATION AB An exact solution to the Gorter-Mellink pulsed-source problem is known in plane geometry [Dresner, L. Advances in Cryogenic Engineering (1984) 29 323]. According to this solution, the central temperature (i.e., the temperature at the source location) falls as t-3/2, where t is the elapsed time after an instantaneous, plane pulse. No such exact solutions are known to the pulsed-source problem in cylindrical and spherical geometry. But in cylindrical geometry, it can be shown that if the initial condition is an instantaneous temperature rise DELTA-T inside a cylinder of radius R, the central temperature is bounded from above by a decreasing exponential function of time. The relaxation time of this exponential is related to Delta-T and R. In spherical geometry, it can be shown that if the initial condition is an instantaneous temperature rise Delta-T inside a sphere of radius R, the central temperature is bounded from above by a function proportional to (t0 - t) 9/2. The extinction time t0 is related to DELTA-T and R. These predictions have not been tested by experiment, and the author recommends such experiments. RP DRESNER, L (reprint author), OAK RIDGE NATL LAB,POB 2009,OAK RIDGE,TN 37831, USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 5 BP 450 EP 454 DI 10.1016/0011-2275(92)90074-K PG 5 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA HT213 UT WOS:A1992HT21300007 ER PT J AU KIM, YI CASPI, S RAVIKUMAR, KV FREDERKING, THK AF KIM, YI CASPI, S RAVIKUMAR, KV FREDERKING, THK TI FRICTION PHENOMENA IN LOW-TC AND HIGH-TC SUPERCONDUCTOR WINDING SYSTEMS SO CRYOGENICS LA English DT Article; Proceedings Paper CT 2ND UNITED-STATES / JAPAN JOINT SEMINAR ON BASIC MECHANISMS OF HELIUM HEAT TRANSFER AND RELATED INFLUENCE ON STABILITY OF SUPERCONDUCTING MAGNETS CY AUG 26-30, 1991 CL LOS ANGELES, CA DE FRICTION; LOW TRANSITION TEMPERATURE; NBTI AB Friction experiments are reported for relative motion between NbTi/Cu windings coated with formvar, i.e. for a superconductor with low transition temperature (T(c)). A heat flow meter technique is used based on ZNMF heat piping in He 11 (ZNMF = zero net mass flow). The friction factors obtained are consistent with results deduced from other techniques. From the data obtained, adiabatic, limiting displacements d(ad) (at quench) are calculated for high transition temperature (high T(c)) composite conductors. The comparison with low T(c) results shows that d(ad) will not be a critical parameter for the present winding friction model at high T(c). C1 UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024. KOREA ACAD IND TECHNOL,SEOUL,SOUTH KOREA. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 5 BP 498 EP 501 DI 10.1016/0011-2275(92)90083-M PG 4 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA HT213 UT WOS:A1992HT21300016 ER PT J AU YOUNG, R YOUNG, K BUDAI, JD MARTENS, JS VENTURINI, G MULLER, M OVSHINSKY, S AF YOUNG, R YOUNG, K BUDAI, JD MARTENS, JS VENTURINI, G MULLER, M OVSHINSKY, S TI EPITAXIAL YBCO(F) FILMS DIRECTLY DEPOSITED ON SAPPHIRE AND ITS MICROWAVE PROPERTIES SO CRYOGENICS LA English DT Article; Proceedings Paper CT 14TH INTERNATIONAL CRYOGENIC ENGINEERING CONF ( ICEC 14 ) / INTERNATIONAL CRYOGENIC MATERIALS CONF ( ICMC ) : CRYOGENIC ENGINEERING & SUPERCONDUCTOR TECHNOLOGY CY JUN 08-12, 1992 CL KIEV, UKRAINE ID YBA2CU3O7 THIN-FILMS; SURFACE-RESISTANCE AB High quality epitaxial YBa2Cu3O7-delta(F) films were grown directly on r-plane (1102BAR) sapphire by a pulsed laser deposition technique using a multiphase fluorinated target. X-ray diffraction data showed that the film is highly c-axis oriented and in-plane aligned. The c-axis and in-plane mosaic spread are 1.1-degrees and 2.4-degrees, respectively. The film has a Tc(R=0) of 89K with a transition width less than 0.25K. The microwave surface resistance R(s) measured by a con-focal resonator configuration is 56mOMEGA at 94.1 GHz at 77K which is the best reported value for a YBCO film on sapphire. The magnetization critical current density is as high as 3x10(7) A/cm2 at 5K and 2x10(6) A/cm2 at 77K. A bandpass filter which is centered at 8.1 GHz is fabricated. A very low insertion loss (<0.1dB) is observed within the whole passband. C1 OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831. SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RP YOUNG, R (reprint author), ENERGY CONVERS DEVICES INC,1675 W MAPLE RD,TROY,MI 48084, USA. RI Budai, John/R-9276-2016 OI Budai, John/0000-0002-7444-1306 NR 11 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 SU S BP 587 EP 591 DI 10.1016/0011-2275(92)90235-3 PG 5 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JZ400 UT WOS:A1992JZ40000142 ER PT J AU ROTH, EP BICKEL, TC GARDNER, TJ VENTURINI, EL AF ROTH, EP BICKEL, TC GARDNER, TJ VENTURINI, EL TI MINIMIZATION OF SELF-FIELD EFFECTS IN A YBA2CU3O7-DELTA SUPERCONDUCTING ANNULAR CONDUCTOR SO CRYOGENICS LA English DT Article DE HIGH-TC SUPERCONDUCTIVITY; CRITICAL CURRENTS; MAGNETIC SELF-FIELDS ID BULK AB Measurements have been made on the transport critical-current density, J(c), of a YBa2CU3O7-delta, superconducting annulus as a function of internal magnetic field. A coaxial, current-return line was used to minimize the internal magnetic self-field generated by the transport current for an annular sample with an outer diameter of 0.98 cm and an inner diameter of 0.44 cm. Calculations of the area-averaged internal field as a function of fraction return current were performed and compared to measurements of sample voltage drop in the transition regime as a function of return current. Excellent agreement was obtained between experiment and calculation showing a minimum magnetic field effect for 40% coaxial return current. External magnetic fields were also used to investigate possible dependence of magnetic field orientation on transport current. Measurements of the sample magnetization were correlated with the magnetic field dependence of the transport measurements. RP ROTH, EP (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 9 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 7 BP 640 EP 647 DI 10.1016/0011-2275(92)90296-M PG 8 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JB723 UT WOS:A1992JB72300006 ER PT J AU HULL, JR UNAL, A CHYU, MC AF HULL, JR UNAL, A CHYU, MC TI ANALYSIS OF SELF-COOLED BINARY CURRENT LEADS CONTAINING HIGH-TEMPERATURE SUPERCONDUCTORS SO CRYOGENICS LA English DT Article DE HIGH TC SUPERCONDUCTIVITY; CRYOSTATS; CURRENT LEADS ID HIGH-TC SUPERCONDUCTOR; CRYOGENIC CURRENT LEAD; THERMODYNAMIC BEHAVIOR; OPTIMIZATION; DEVICES; MAGNET; DESIGN AB The steady-state thermal performance of a cryostat current lead composed of a normal conductor upper part and a superconductor lower part is analysed. The upper end of the lead is at ambient temperature, the lower end is immersed in liquid helium, and the cooling for the lead is totally provided by the vapour generated by the heat flux from the lead into the helium. In the limit of high heat transfer rate between the lead and the helium vapour, there is a universal relationship between mass flow rate and superconductor transition temperature that is indpendent of the thermophysical properties or geometric details of either the superconductor or the normal conductor. This relationship shows that the reduction in heat flux to the helium with self-cooled binary leads, compared to that of the best copper leads, is limited to about 20% with critical temperatures (< 130 K) of existing high temperature superconductors. In general, helium boiloff with binary leads increases with decreasing heat transfer coefficient between lead and vapour. However, for some designs, based around a nominal heat-transfer rate, an increase in heat transfer results in higher temperatures along most of the lead. RP HULL, JR (reprint author), ARGONNE NATL LAB,DIV MAT & COMPONENTS TECHNOL,9700 S CASS AVE,ARGONNE,IL 60439, USA. RI Makina, KTU/K-7182-2012 OI Makina, KTU/0000-0003-0130-0876 NR 22 TC 9 Z9 14 U1 1 U2 2 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 9 BP 822 EP 828 DI 10.1016/0011-2275(92)90316-3 PG 7 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JK989 UT WOS:A1992JK98900010 ER PT J AU LEE, A WANDS, RH FAST, RW AF LEE, A WANDS, RH FAST, RW TI STUDY OF CURRENT REDISTRIBUTION IN AN ALUMINUM STABILIZED SUPERCONDUCTOR SO CRYOGENICS LA English DT Article DE SUPERCONDUCTORS; STABILITY; MATHEMATICAL MODELS AB When a superconductor switches from a superconducting to a normal state, the current will move out of the superconductor and redistribute itself in the stabilizer. To study this current diffusion phenomenon in the conductor, a separation of variables method is used to solve directly the current diffusion equation for a rectangular composite conductor. The average power generation over the conductor cross-section is obtained based on the calculated current density profile. An excess power generation term is found during the transition period that decays exponentially with time. Finally, a comparison between this approach and the Devred solution shows a good agreement. RP LEE, A (reprint author), FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510, USA. NR 2 TC 12 Z9 12 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 10 BP 863 EP 866 DI 10.1016/0011-2275(92)90351-A PG 4 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JQ860 UT WOS:A1992JQ86000003 ER PT J AU THOMPSON, JR OSSANDON, JG CHRISTEN, DK SUN, YR SALES, BC KERCHNER, HR TKACZYK, JE LAY, KW AF THOMPSON, JR OSSANDON, JG CHRISTEN, DK SUN, YR SALES, BC KERCHNER, HR TKACZYK, JE LAY, KW TI SYSTEMATICS OF FLUX PINNING VERSUS OXYGEN DEFICIENCY-DELTA IN ALIGNED Y1BA2CU3O7-DELTA MATERIALS SO CRYOGENICS LA English DT Article; Proceedings Paper CT CONF ON CRITICAL CURRENTS IN HIGH T(C) SUPERCONDUCTORS CY APR 22-24, 1992 CL VIENNA, AUSTRIA DE YBCO; FLUX PINNING; OXYGEN DEFICIENCY ID CURRENT-DENSITY; CREEP; SUPERCONDUCTORS; TEMPERATURE; DEPENDENCE; RELAXATION; CRYSTAL AB Magnetization studies were made on a series of oxygen-deficient Y1Ba2Cu3O7-delta materials, to determine the role of oxygen deficiency delta less-than-or-equal-to 0.20 on intragrain superconductive properties. As oxygen was removed, the critical current density J(c) decreased steadily, even where T(c) was nearly constant. Flux creep studies were analyzed to obtain the effective vortex pinning energy U(eff)(J), Which depends on the instantaneous current density J. The results were well described by the vortex glass/collective pinning relation U(eff)(J) = (U(o)/mu[J(c0)/J)mu - 1], with mu almost-equal-to 0.9 for all oxygen compositions. Experimental values for the pinning energy scale U(o) are compared with predictions from collective pinning theory. C1 UNIV TENNESSEE,DEPT PHYS,KNOXVILLE,TN 37996. GE,CORP RES & DEV LAB,SCHENECTADY,NY 12301. RP THOMPSON, JR (reprint author), OAK RIDGE NATL LAB,BLDG 3115,OAK RIDGE,TN 37831, USA. NR 23 TC 7 Z9 7 U1 1 U2 1 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 11 BP 982 EP 987 DI 10.1016/0011-2275(92)90012-Y PG 6 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA JW017 UT WOS:A1992JW01700012 ER PT J AU SEKULIC, DP UZELAC, Z EDESKUTY, FJ AF SEKULIC, DP UZELAC, Z EDESKUTY, FJ TI ENTROPY GENERATION IN A HIGH-TEMPERATURE SUPERCONDUCTING CURRENT LEAD SO CRYOGENICS LA English DT Article DE CURRENT LEADS; HIGH TC SUPERCONDUCTORS; OPTIMAL THERMAL DESIGN ID HIGH-TC SUPERCONDUCTOR; CRYOGENIC DEVICES; DESIGN; PRINCIPLE; BEHAVIOR; MAGNET; YBCO AB The minimization of entropy generation has been used as a convenient thermal design tool in predicting the optimal temperature distribution in a cryogenic current lead. A vapour-cooled lead with non-ideal cooling has been modelled by a set of non-linear differential equations with corresponding boundary conditions. Highly non-linear temperature dependent thermophysical properties, typical for a high temperature superconducting YBCO compound, have been incorporated in a current lead model. Numerically obtained current lead temperature profiles have been used to calculate entropy generation within the lead as a function of the relevant physical and operational parameters. It has been shown that with respect to thermodynamic irreversibility as an objective function, in both resistive and superconducting modes of operation, there is an optimal thermal design. C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. RP SEKULIC, DP (reprint author), UNIV NOVI SAD,SCH ENGN,POB 55,YU-21121 NOVI SAD,YUGOSLAVIA. NR 32 TC 3 Z9 3 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PY 1992 VL 32 IS 12 BP 1154 EP 1161 DI 10.1016/0011-2275(92)90330-D PG 8 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA KA230 UT WOS:A1992KA23000007 ER PT J AU LENNON, GG LEHRACH, H AF LENNON, GG LEHRACH, H TI GENE DATABASE FOR THE FISSION YEAST SCHIZOSACCHAROMYCES-POMBE SO CURRENT GENETICS LA English DT Review DE SCHIZOSACCHAROMYCES-POMBE; GENE LIST; GENE DATABASE; FISSION YEAST GENOME PROJECT ID RIBOSOMAL-PROTEIN GENE; CELL-DIVISION CYCLE; TRANSFER-RNA GENES; CYCLOHEXIMIDE RESISTANT STRAIN; ALPHA-TUBULIN GENES; DNA-LIGASE GENE; SACCHAROMYCES-CEREVISIAE; S-POMBE; NUCLEOTIDE-SEQUENCE; EXTRACHROMOSOMAL-INHERITANCE AB As an aid to the fission yeast genome project, we describe a database for Schizosaccharomyces pombe consisting of both genetic and physical information. As presented, it is therefore both an updated gene list of all the nuclear genes of the fission yeast, and provides an estimate of the physical distance between two mapped genes. Additionally, a field indicates whether the sequence of the gene is available. Currently, sequence information is available for 135 of the 501 known genes. C1 IMPERIAL CANC RES FUND,GENOME ANAL LAB,44 LINCOLNS INN FIELDS,LONDON WC2A 3PX,ENGLAND. UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV BIOMED L452,LIVERMORE,CA 94550. NR 209 TC 23 Z9 23 U1 0 U2 2 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0172-8083 J9 CURR GENET JI Curr. Genet. PD JAN PY 1992 VL 21 IS 1 BP 1 EP 11 DI 10.1007/BF00318646 PG 11 WC Genetics & Heredity SC Genetics & Heredity GA GZ517 UT WOS:A1992GZ51700001 PM 1735122 ER PT J AU WILEY, JE MEYNE, J LITTLE, ML STOUT, JC AF WILEY, JE MEYNE, J LITTLE, ML STOUT, JC TI INTERSTITIAL HYBRIDIZATION SITES OF THE (TTAGGG)N TELOMERIC SEQUENCE ON THE CHROMOSOMES OF SOME NORTH-AMERICAN HYLID FROGS SO CYTOGENETICS AND CELL GENETICS LA English DT Article ID EVOLUTION AB Interstitial hybridization sites for the (TTAGGG)n telomeric repeat sequence were present in all seven species of hylid frogs examined and in a triploid hybrid between two of the species. Intra- and interspecific differences and similarities in hybridization sites agreed with what is known about the systematics of these species. Chromosome fusions, fissions, and inversions do not appear to have played a role in the evolution of the interstitial sites for the telomeric repeat in the species examined. C1 LOS ALAMOS NATL LAB,CTR HUMAN GENOME STUDIES,LOS ALAMOS,NM 87545. MARSHALL UNIV,DEPT BIOL SCI,HUNTINGTON,WV 25701. RP WILEY, JE (reprint author), E CAROLINA UNIV,DEPT PEDIAT,GREENVILLE,NC 27858, USA. NR 10 TC 49 Z9 50 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 61 IS 1 BP 55 EP 57 DI 10.1159/000133368 PG 3 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JL517 UT WOS:A1992JL51700011 PM 1505232 ER PT J AU DEJONG, PJ MCNINCH, J GARNES, J TRASK, B VANDERENGH, G AF DEJONG, PJ MCNINCH, J GARNES, J TRASK, B VANDERENGH, G TI PREPARATION OF COSMID AND LAMBDA-LIBRARIES FROM FLOW-SORTED CHROMOSOME-12 SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,CTR HUMAN GENOME L452,LIVERMORE,CA 94551. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 61 IS 4 BP 256 EP 256 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA KD807 UT WOS:A1992KD80700031 ER PT J AU CALLEN, DF HILDEBRAND, CE REEDERS, S AF CALLEN, DF HILDEBRAND, CE REEDERS, S TI REPORT OF THE 2ND INTERNATIONAL WORKSHOP ON HUMAN CHROMOSOME-16 MAPPING SO CYTOGENETICS AND CELL GENETICS LA English DT Article ID PROGRESSION; CARCINOMA; GENES; LOCI; MAP C1 LOS ALAMOS NATL LAB,GENOM & STRUCT BIOL GRP,LOS ALAMOS,NM 87544. YALE UNIV,SCH MED,NEW HAVEN,CT 06510. RP CALLEN, DF (reprint author), ADELAIDE CHILDRENS HOSP INC,DEPT CYTOGENET & MOLEC GENET,72 KING WILLIAM RD,ADELAIDE,SA 5006,AUSTRALIA. RI Callen, David/G-1975-2012 NR 21 TC 16 Z9 16 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 158 EP 167 PG 10 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000001 PM 1354591 ER PT J AU BREUNING, MH DAUWERSE, HG FUGAZZA, G SARIS, JJ SPRUIT, L WIJNEN, H TOMMERUP, N VANDERHAGEN, CB IMAIZUMI, K KUROKI, Y VANDENBOOGAARD, MJ DEPATER, JM MARIMAN, E HAMEL, B HIMMELBAUER, H FRISCHAUF, AM STALLINGS, RL VANOMMEN, GJB HENNIKAM, RCM AF BREUNING, MH DAUWERSE, HG FUGAZZA, G SARIS, JJ SPRUIT, L WIJNEN, H TOMMERUP, N VANDERHAGEN, CB IMAIZUMI, K KUROKI, Y VANDENBOOGAARD, MJ DEPATER, JM MARIMAN, E HAMEL, B HIMMELBAUER, H FRISCHAUF, AM STALLINGS, RL VANOMMEN, GJB HENNIKAM, RCM TI RUBINSTEIN-TAYBI SYNDROME CAUSED BY SUBMICROSCOPIC DELECTIONS OF CHROMOSOME-16 SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LEIDEN UNIV,DEPT HUMAN GENET,2333 AL LEIDEN,NETHERLANDS. KENNEDY INST,GLOSTRUP,DENMARK. AVD MED GENET,OSLO,NORWAY. KANAGAWA CHILDRENS MED CTR,DEPT MED GENET,YOKOHAMA,KANAGAWA,JAPAN. CLIN GENET CTR,UTRECHT,NETHERLANDS. CATHOLIC UNIV NIJMEGEN,DEPT HUMAN GENET,NIJMEGEN,NETHERLANDS. IMPERIAL CANC RES FUND,LONDON WC2A 3PX,ENGLAND. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. RI Wijnen, Herman/B-8860-2013 NR 0 TC 1 Z9 1 U1 0 U2 1 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 168 EP 169 PG 2 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000004 ER PT J AU CALLEN, DF CHEN, LZ WHITMORE, SA NANCARROW, J APOSTOLOU, S THOMPSON, AD LANE, SA STALLINGS, RL HILDEBRAND, CE SUTHERLAND, GR AF CALLEN, DF CHEN, LZ WHITMORE, SA NANCARROW, J APOSTOLOU, S THOMPSON, AD LANE, SA STALLINGS, RL HILDEBRAND, CE SUTHERLAND, GR TI A CYTOGENETIC-BASED PHYSICAL MAP OF CHROMOSOME-16 SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 ADELAIDE CHILDRENS HOSP INC,DEPT CYTOGENET & MOLEC GENET,ADELAIDE,SA 5006,AUSTRALIA. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. RI Sutherland, Grant/D-2606-2012; Callen, David/G-1975-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 169 EP 169 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000005 ER PT J AU CINKOSKY, MJ BARBER, W BRIDGERS, M REDGRAVE, GW SORENSEN, D TROUP, C YANTIS, B FICKETT, JW AF CINKOSKY, MJ BARBER, W BRIDGERS, M REDGRAVE, GW SORENSEN, D TROUP, C YANTIS, B FICKETT, JW TI SIGMA - SYSTEM FOR INTEGRATED GENOME MAP ASSEMBLY SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,HUMAN GENOME INFORMAT RESOURCE THEORET BIOL & BIOPHYS GRP,LOS ALAMOS,NM 87545. LOS ALAMOS NATL LAB,CTR HUMAN GENOME STUDIES,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 170 EP 170 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000008 ER PT J AU FICKETT, JW CINKOSKY, MJ AF FICKETT, JW CINKOSKY, MJ TI OPTIMIZING MAPS TO FIT EXPERIMENTAL-DATA SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,HUMAN GENOME INFORMAT RESOURCE THEORET BIOL & BIOPHYS GRP,LOS ALAMOS,NM 87545. LOS ALAMOS NATL LAB,CTR HUMAN GENOME STUDIES,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 171 EP 171 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000012 ER PT J AU MITCHISON, HM WILLIAMS, RE MCKAY, TR CALLEN, DF THOMPSON, A MULLEY, JC STALLINGS, RL HILDEBRAND, CE MOYZIS, RK JARVELA, I PELTONEN, L HAINES, J SUTHERLAND, GR GARDINER, RM AF MITCHISON, HM WILLIAMS, RE MCKAY, TR CALLEN, DF THOMPSON, A MULLEY, JC STALLINGS, RL HILDEBRAND, CE MOYZIS, RK JARVELA, I PELTONEN, L HAINES, J SUTHERLAND, GR GARDINER, RM TI LINKAGE ANALYSIS OF NEURONAL CEROID LIPOFUSCINOSIS - REFINED MAPPING OF CLN3 AND EVIDENCE OF LOCUS HETEROGENEITY OF CLN3 AND CLN2 SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 UNIV LONDON UNIV COLL,DEPT PAEDIAT,LONDON WC1E 6BT,ENGLAND. UNIV LONDON MIDDLESEX HOSP,LONDON,ENGLAND. ADELAIDE CHILDRENS HOSP INC,DEPT CYTOGENET & MOLEC GENET,ADELAIDE,SA 5006,AUSTRALIA. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. NATL PUBL HLTH INST,MOLEC GENET LAB,SF-00280 HELSINKI 28,FINLAND. MASSACHUSETTS GEN HOSP,BOSTON,MA 02114. RI Sutherland, Grant/D-2606-2012; Callen, David/G-1975-2012 NR 1 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 173 EP 173 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000017 ER PT J AU STALLINGS, RL DOGGETT, NA MCCORMICK, MK DEAVEN, LL CALLEN, DF SUTHERLAND, GR OKUMURA, K WARD, D MOYZIS, RK AF STALLINGS, RL DOGGETT, NA MCCORMICK, MK DEAVEN, LL CALLEN, DF SUTHERLAND, GR OKUMURA, K WARD, D MOYZIS, RK TI PHYSICAL MAPPING OF HUMAN CHROMOSOME-16 SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. CHILDRENS HOSP,DEPT CYTOGENET & MOLEC GENET,ADELAIDE,SA,AUSTRALIA. YALE UNIV,SCH MED,DEPT HUMAN GENET,NEW HAVEN,CT 06510. LOS ALAMOS NATL LAB,CTR HUMAN GENOME STUDIES,LOS ALAMOS,NM 87544. RI Sutherland, Grant/D-2606-2012; Callen, David/G-1975-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 175 EP 175 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000023 ER PT J AU REDGRAVE, GW HILDEBRAND, CE FICKETT, JW CINKOSKY, MJ BURKS, C AF REDGRAVE, GW HILDEBRAND, CE FICKETT, JW CINKOSKY, MJ BURKS, C TI HUMAN CHROMOSOME-16 AS A MODEL FOR INTEGRATED GENETIC, CYTOGENETIC, AND PHYSICAL MAPS SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,THEORET BIOL & BIOPHYS GRP T-10 MSK710,LOS ALAMOS,NM 87544. LOS ALAMOS NATL LAB,GEN & STRUCT BIOL GRP LS-2 M880,LOS ALAMOS,NM 87544. NR 3 TC 0 Z9 0 U1 0 U2 1 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 176 EP 176 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000026 ER PT J AU LUCAS, JN POGGENSEE, M STRAUME, T AF LUCAS, JN POGGENSEE, M STRAUME, T TI THE PERSISTENCE OF CHROMOSOME TRANSLOCATIONS IN A RADIATION WORKER ACCIDENTALLY EXPOSED TO TRITIUM SO CYTOGENETICS AND CELL GENETICS LA English DT Note AB The chromosome translocation frequency in lymphocytes of an individual accidentally exposed to tritium six years previously was measured using chromosome painting. Comparisons with results from cytogenetic studies shortly after the accident indicate that the translocation frequency has remained unaltered in this individual for six years. RP LUCAS, JN (reprint author), LAWRENCE LIVERMORE NATL LAB,POB 5507,LIVERMORE,CA 94551, USA. NR 7 TC 72 Z9 74 U1 0 U2 1 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 255 EP 256 DI 10.1159/000133353 PG 2 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000049 PM 1505224 ER PT J AU SPINNER, N SCHNEIDER, A ZACKAI, E GOLDEN, W LUCAS, J AF SPINNER, N SCHNEIDER, A ZACKAI, E GOLDEN, W LUCAS, J TI PARTIAL DUPLICATION 9Q AND DELETION 6Q IDENTIFIED BY CHROMOSOME PAINTING SO CYTOGENETICS AND CELL GENETICS LA English DT Meeting Abstract C1 CHILDRENS HOSP,PHILADELPHIA,PA 19104. ALBERT EINSTEIN MED CTR,NO DIV,PHILADELPHIA,PA 19141. UNIV VIRGINIA,CHARLOTTESVILLE,VA 22903. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 1 Z9 1 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 60 IS 3-4 BP 269 EP 269 PG 1 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA JK230 UT WOS:A1992JK23000082 ER PT J AU WOOD, S SCHERTZER, M DRABKIN, H PATTERSON, D LONGMIRE, JL DEAVEN, LL AF WOOD, S SCHERTZER, M DRABKIN, H PATTERSON, D LONGMIRE, JL DEAVEN, LL TI CHARACTERIZATION OF A HUMAN CHROMOSOME-8 COSMID LIBRARY CONSTRUCTED FROM FLOW-SORTED CHROMOSOMES SO CYTOGENETICS AND CELL GENETICS LA English DT Article ID DNA LIBRARIES; C-MYC; GENE; TRANSLOCATION; POLYMORPHISM; SEQUENCE; MARKER; REGION; RFLP AB A cosmid library for human chromosome 8 has been constructed from flow-sorted chromosomes in the vector sCos-1. This library is 85% human and has been arrayed into 210 microtiter plates representing four genome equivalents. Cosmids have been isolated with 10 of 11 probes representing nine different loci from chromosome 8. C1 ELEANOR ROOSEVELT INST CANC RES,DENVER,CO. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544. RP WOOD, S (reprint author), UNIV BRITISH COLUMBIA,DEPT MED GENET,6174 UNIV BLVD,VANCOUVER V6T 1Z3,BC,CANADA. NR 27 TC 59 Z9 59 U1 0 U2 0 PU KARGER PI BASEL PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND SN 0301-0171 J9 CYTOGENET CELL GENET JI Cytogenet. Cell Genet. PY 1992 VL 59 IS 4 BP 243 EP 247 DI 10.1159/000133260 PG 5 WC Cell Biology; Genetics & Heredity SC Cell Biology; Genetics & Heredity GA HJ146 UT WOS:A1992HJ14600002 PM 1544316 ER PT J AU PALLAVICINI, MG LANGLOIS, RG REITSMA, M GONZALGO, M SUDAR, D MONTOYA, T WEIER, HU HAENDEL, S AF PALLAVICINI, MG LANGLOIS, RG REITSMA, M GONZALGO, M SUDAR, D MONTOYA, T WEIER, HU HAENDEL, S TI COMPARISON OF STRATEGIES TO DETECT AND QUANTITATE UNIQUELY MARKED CELLS IN INTRA-SPECIES AND INTERSPECIES HEMATOPOIETIC CHIMERAS SO CYTOMETRY LA English DT Article DE IMMUNOFLUORESCENCE; MARKERS; POLYMERASE CHAIN REACTION; TRANSPLANTATION ID FLOW CYTOMETRIC CHARACTERIZATION; HEMATOPOIETIC STEM-CELLS; TRANSGENIC MICE; GLYCOPHORIN-A; DNA; TRANSPLANTATION; AMPLIFICATION; HYBRIDIZATION; EXPRESSION; PROBES AB Evaluation of the outcome of successful bone marrow transplantation and in-depth studies of transplantation biology rely increasingly upon detection and enumeration of donor hemopoietic cells in the transplanted recipients. The ability to detect and enumerate low levels of donor engraftment in interphase cell subpopulations in hemopoietic chimeras is particularly important for studies of mixed lineage chimerism, early relapse manifestations, and engraftment of subpopulations present at low frequency. We describe and compare the sensitivity and specificity of DNA-based detection strategies (fluorescence in situ hybridization, in vitro DNA amplification using the polymerase chain reaction) and flow cytometric analysis of cell surface markers to detect cells carrying marker DNA or proteins in syngeneic (mouse-to-mouse) an xenogeneic (mouse-to-human, monkey, sheep) backgrounds. DNA-based detection strategies offer advantages of rapid analysis and enumeration of target cell frequencies with detection sensitivities approximating 10(-4). The sensitivity of immunofluorescence-linked flow cytometric-based detection of nucleated leukocytes approached 10(-3), whereas flow cytometric-based detection of fixed human erythrocytes was feasible at cell frequencies of 10(-5) . Data described in this manuscript should facilitate selection of appropriate methodologies for assessment of hemopoietic chimerism following transplantation. C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV BIOMED SCI,LIVERMORE,CA 94550. FU NIAID NIH HHS [AI27909] NR 27 TC 17 Z9 16 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0196-4763 J9 CYTOMETRY JI Cytometry PY 1992 VL 13 IS 4 BP 356 EP 367 DI 10.1002/cyto.990130405 PG 12 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA HR072 UT WOS:A1992HR07200004 PM 1356084 ER PT J AU GIORGI, JV HURTUBISE, PE CRAM, LS PARKER, JW LAVIA, MF AF GIORGI, JV HURTUBISE, PE CRAM, LS PARKER, JW LAVIA, MF TI CLINICAL-APPLICATIONS OF CYTOMETRY - 6TH ANNUAL-MEETING SO CYTOMETRY LA English DT Editorial Material DE CYTOMETRY; IMMUNOPHENOTYPING; DNA PLOIDY ANALYSIS; BONE MARROW TRANSPLANTATION; PEDIATRIC AIDS; LEUKEMIA LYMPHOMA DIAGNOSIS; DIAGNOSTIC FLOW CYTOMETRY AB The Sixth Annual Clinical Applications of Cytometry Meeting was held September 11-14, 1991, in Charleston, SC. Attendance reached a record 470. The meeting provides a forum for interactions among investigators who utilize cytometry as a tool in their clinical immunology, cell biology, hematology, and cancer investigations. Clinical laboratory directors and their technical staff find the meeting of practical value because of the presentation of new applications that they can take home to their own laboratories. The emphasis of the meeting is on advances in the application of cytometry to clinical problems. Often, advances result from new dyes or reagents or improved instrumentation. Sometimes they result from advances in biology that make the studies possible. Occasionally a new way of looking at the same data provides a useful answer. In every case, the effort is to provide a reliable, straightforward way to quantitate biologic information in order to provide improved diagnosis or treatment of human disease. C1 JONSSON COMPREHENS CANC CTR,LOS ANGELES,CA 90024. UNIV SO CALIF,SCH MED,DEPT PATHOL,LOS ANGELES,CA 90032. UNIV CINCINNATI,MED CTR,DEPT DIAGNOST IMMUNOL,CINCINNATI,OH 45267. UNIV CALIF LOS ALAMOS SCI LAB,DIV LIFE SCI,LOS ALAMOS,NM 87545. MED UNIV S CAROLINA,DEPT PATHOL & LAB MED,CHARLESTON,SC 29425. RP GIORGI, JV (reprint author), UNIV CALIF LOS ANGELES,SCH MED,DEPT MED,LOS ANGELES,CA 90024, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0196-4763 J9 CYTOMETRY JI Cytometry PY 1992 VL 13 IS 4 BP 445 EP 447 DI 10.1002/cyto.990130415 PG 3 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA HR072 UT WOS:A1992HR07200014 PM 1356085 ER PT J AU SCHMITZ, A GUILLY, MN TRASK, B VANDENENGH, G AF SCHMITZ, A GUILLY, MN TRASK, B VANDENENGH, G TI IMMUNOFLUORESCENT LABELING OF CENTROMERES FOR FLOW CYTOMETRIC ANALYSIS SO CYTOMETRY LA English DT Article DE CENTROMERE; CREST; CHROMOSOMES; FLOW CYTOMETRY; FLOW KARYOTYPING ID AUTOANTIBODIES; SCLERODERMA; KINETOCHORE; CHROMOSOMES; RESOLUTION; PROTEINS; SERA AB A procedure to stain the centromeric region of chromosomes for dual beam flow cytometric analysis is described. Serum from a CREST (Scleroderma syndrome) patient presenting a high titer of anticentromeric antibodies was chosen on the basis of specificity of labeling of cells on slides. The high affinity of the antibodies to centromeres and low binding to chromosomal arms allowed the development of an indirect immunofluorescent labeling procedure using isolated and unfixed chromosomes stabilized by Mg++ ions. Discontinuous Ficoll gradients were used to separate chromosomes from unbound antibodies. With this procedure, chromosome clumping and degradation were minimal. The chromosomes were then stained with the DNA dyes Hoechst 33258 and chromomycin A3, before dual beam flow cytometric analysis. Flow karyotypes, with good chromosome peak resolution, were obtained for both human and hamster chromosomes subjected to the immunolabeling procedure. For quantification of FITC fluorescence due to bound antibody, chromosomes were counterstained with Hoechst only. The FITC intensity of antibody-labeled human and hamster chromosomes were 4-10 and 20 times greater than control chromosomes, respectively. These results suggest that the staining procedure may be suitable for immunolabeling of chromosomes with antibodies recognizing other nuclear proteins and their subsequent quantification by flow cytometry. C1 LAWRENCE LIVERMORE NATL LAB,DIV BIOMED SCI,LIVERMORE,CA 94550. RP SCHMITZ, A (reprint author), CEN,DEPT PATHOL & TOXICOL EXPTL,BP 6,F-92265 FONTENAY ROSES,FRANCE. NR 14 TC 4 Z9 4 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0196-4763 J9 CYTOMETRY JI Cytometry PY 1992 VL 13 IS 5 BP 478 EP 484 DI 10.1002/cyto.990130505 PG 7 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA HY726 UT WOS:A1992HY72600004 PM 1378781 ER PT J AU VANDENENGH, G FARMER, C AF VANDENENGH, G FARMER, C TI PHOTOBLEACHING AND PHOTON SATURATION IN FLOW-CYTOMETRY SO CYTOMETRY LA English DT Article DE HOECHST 33258; PROPIDIUM IODIDE; MOUSE THYMOCYTES ID RESOLUTION; CHROMOSOMES; DNA AB In flow cytometry, small particles travel at a high speed through a bright light spot. The high light intensity at the point of measurement causes measurable photon saturation. This observation indicates that the rate at which individual dye molecules emit photons is close to the maximum emission rate. Despite the short exposure time, individual molecules may go through a few hundred excitation cycles while they are in the light beam. The absorbed light dose causes significant dye destruction. This article presents experimental procedures to determine the extent of photon saturation and photo-bleaching of dyes bound to cell nuclei in a flow cytometer. Measurements of Hoechst and propidium iodide bound to chromatin show that the amount of dye bleached per emitted photon is the same at low and high illumination intensities. This finding indicates that photon emission and dye destruction are both the result of the absorption of single excitation photons. The experimental observations allow rough estimates of the lifetime of the excited state and the lifetime of the molecule. The lifetime of the Hoechst 33258 bound to DNA is estimated to be 100 excitation-relaxation cycles. The average propidium iodide molecule lasts approximately 200 excitation-relaxation cycles. The theoretical considerations show that the optimal illumination conditions are different for bleaching and nonbleaching dyes. An optical arrangement for high precision measurements of bleaching dyes is presented. RP VANDENENGH, G (reprint author), LAWRENCE LIVERMORE NATL LAB,DIV BIOMED SCI L452,POB 5507,LIVERMORE,CA 94550, USA. NR 18 TC 35 Z9 36 U1 0 U2 1 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0196-4763 J9 CYTOMETRY JI Cytometry PY 1992 VL 13 IS 7 BP 669 EP 677 DI 10.1002/cyto.990130702 PG 9 WC Biochemical Research Methods; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA JN954 UT WOS:A1992JN95400001 PM 1280553 ER PT J AU GAME, JC AF GAME, JC TI PULSED-FIELD GEL ANALYSIS OF THE PATTERN OF DNA DOUBLE-STRAND BREAKS IN THE SACCHAROMYCES GENOME DURING MEIOSIS SO DEVELOPMENTAL GENETICS LA English DT Article DE DOUBLE-STRAND BREAKS; MEIOTIC RECOMBINATION; PULSED-FIELD GELS; YEAST ID MEIOTIC GENE CONVERSION; INITIATION SITE; CHROMOSOMAL DNA; CEREVISIAE; YEAST; RECOMBINATION; REPAIR; ELECTROPHORESIS; MUTANTS; SEPARATION AB Pulsed-field gel electrophoresis (PFGE) has been used to study the timing, frequency, and distribution of double-strand breaks (DSBs) in chromosomal-sized DNA during meiosis in yeast. It has previously been shown that DSBs are associated with some genetic hotspots during recombination, and it is important to know whether meiotic recombination events routinely initiate via DSBs. Two strains have been studied here-a high-sporulating homothallic wild type and a congenic mutant strain carrying a rad50S mutation. This mutant has previously been reported to accumulate broken molecules in meiosis to much higher frequencies than wild type and to abolish the characteristic wild-type processing of DNA that has been observed at the break sites. When whole chromosomes are resolved by PFGE, both strains show some broken molecules starting at the time that cells commit to genetic recombination. Breakage has been assessed primarily on Chromosome III and Chr. XV, using Southern hybridization to identify these chromosomes and their fragments. At any one time, break frequency in wild type is much lower than the cumulative frequency of recombination events that occur during meiosis. However, there is suggestive evidence that each break is short-lived, and it is therefore difficult to estimate the total number of breaks that may occur. In rad50S, chromosome breaks accumulate to much higher levels, which are probably broadly consistent with the estimated number of recombination events in wild type. However, since rad50S is substantially defective in completing recombination, it is not known for certain if it initiates events at wild-type frequencies. A surprising feature of the data is that a strong banding pattern is observed in the fragment distribution from broken chromosomes in both strains, implying that at least much of the breakage occurs at specific sites or within short regions. However, with the exception of the rDNA region on Chr. XII, assessment of the genetic map indicates that recombination can occur almost anywhere in the genome, although some regions are much hotter than others. Possible reasons for this apparent paradox are discussed. It may in part result from breakage levels too low for adequate detection in cold regions but may also imply that recombination events are localized more than previously realized. Alternatively, there may be a more indirect relationship between break sites and the associated recombination events. RP GAME, JC (reprint author), LAWRENCE BERKELEY LAB,DIV CELLULAR & MOLEC BIOL,BERKELEY,CA 94720, USA. FU NIGMS NIH HHS [GM 30990] NR 53 TC 46 Z9 46 U1 1 U2 2 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0192-253X J9 DEV GENET JI Dev. Genet. PY 1992 VL 13 IS 6 BP 485 EP 497 DI 10.1002/dvg.1020130610 PG 13 WC Developmental Biology; Genetics & Heredity SC Developmental Biology; Genetics & Heredity GA KY127 UT WOS:A1992KY12700009 PM 1304426 ER PT S AU GREENBERG, DS TAUBENFELD, G WANG, DW AF GREENBERG, DS TAUBENFELD, G WANG, DW BE Segall, A Zaks, S TI CHOICE COORDINATION WITH MULTIPLE ALTERNATIVES SO DISTRIBUTED ALGORITHMS SE LECTURE NOTES IN COMPUTER SCIENCE LA English DT Proceedings Paper CT 6TH WORKSHOP ON DISTRIBUTED ALGORITHMS ( WDAG92 ) CY NOV 02-04, 1992 CL HAIFA, ISRAEL SP S NEAMAN INST ADV STUDIES SCI & TECHNOL RP GREENBERG, DS (reprint author), SANDIA NATL LABS,POB 5800,ALBUQUERQUE,NM 87185, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA BERLIN SN 0302-9743 BN 3-540-56188-9 J9 LECT NOTES COMPUT SC PY 1992 VL 647 BP 54 EP 68 PG 15 WC Mathematics, Applied SC Mathematics GA BY27N UT WOS:A1992BY27N00005 ER PT J AU ALDRICH, TE LABORDE, D GRIFFITH, J EASTERLY, C AF ALDRICH, TE LABORDE, D GRIFFITH, J EASTERLY, C TI A METAANALYSIS OF THE EPIDEMIOLOGIC EVIDENCE REGARDING HUMAN HEALTH RISK ASSOCIATED WITH EXPOSURE TO ELECTROMAGNETIC-FIELDS SO ELECTRO- AND MAGNETOBIOLOGY LA English DT Article ID ELECTRICAL WIRING CONFIGURATIONS; NERVOUS-SYSTEM TUMORS; MAGNETIC-FIELDS; OCCUPATIONAL EXPOSURE; CHILDHOOD-CANCER; BRAIN CANCER; NEW-ZEALAND; TRANSMISSION EQUIPMENT; LEUKEMIA; WORKERS AB There is evidence to suspect that a human health risk could exist from exposure to electromagnetic fields (EMF). Such a risk is likely to be very small and thus elusive to measure. This paper aims to evaluate the magnitude and manner of the potential human cancer risk associated with EMF exposure using the published literature. To accomplish this objective, a meta-analysis was performed with the published literature through 1991. Two conventional, summary techniques were used: geometric means and sample size weighing (Mantel-Haenszel). The summary risk estimates using these methods for cancer risk from EMF exposure are 1.6 and 2.0, respectively. Epidemiological studies are currently underway to address the EMF question and to measure EMF exposure more specifically. Until these studies are published and their results can be integrated into appropriate safety procedures, minimizing public health exposures is a prudent course. C1 OAK RIDGE NATL LAB,HLTH EFFECTS GRP,OAK RIDGE,TN 37831. RP ALDRICH, TE (reprint author), ENVIRONM HLTH & EPIDEMIOL INC,610 WEATHERGREEN DR,RALEIGH,NC 27615, USA. NR 63 TC 18 Z9 18 U1 0 U2 0 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 1061-9526 J9 ELECTRO MAGNETOBIOL JI Electro Magnetobiol. PY 1992 VL 11 IS 2 BP 127 EP 143 DI 10.3109/15368379209009822 PG 17 WC Biology; Biophysics SC Life Sciences & Biomedicine - Other Topics; Biophysics GA JZ561 UT WOS:A1992JZ56100007 ER PT J AU ROSS, PN DAGOSTINO, AT AF ROSS, PN DAGOSTINO, AT TI THE EFFECT OF SURFACE RECONSTRUCTION ON THE CAPACITANCE OF AU(100) SURFACES SO ELECTROCHIMICA ACTA LA English DT Article DE GOLD; SURFACE RECONSTRUCTION; CAPACITANCE; SPECIFIC ADSORPTION; WORK FUNCTION ID WORK FUNCTION; ELECTROCHEMICAL-CELL; ELECTRODE SURFACES; CRYSTAL-SURFACES; GOLD SURFACES; ZERO CHARGE; LEED; AU; STABILITY; PLATINUM AB The effect of reconstruction of the Au(100) surface on the double-layer capacity was measured using standard ac methods combined with UHV surface preparation and ex situ structure analysis. The (5 x 20) reconstruction present on the UHV-prepared surface was found to be stable in dilute HClO4 over a wide range of electrode potential. In dilute H2SO4, the (5 x 20) reconstruction was lifted at potentials near the pzc by specific adsorption of HSO4- even when the anion was present at very low concentrations, eg 10(-5) M. In 0.01 M HClO4, the reconstruction was lifted only at potentials 0.2 V positive of the pzc, and was restored when the potential was made ca 0.1 V negative of the pzc for the (1 x 1) surface, ie the (5 x 20) reversible (1 x 1) transformation was quasi-reversible in dilute HClO4. Atomic scale roughness, eg steps, appeared to lower the stability of the (5 x 20) structure. The capacity curve for the (5 x 20) reconstructed surface was dramatically different from that of the (1 x 1) surface, with a negative shift in the pzc of ca 0.2 V following the transformation (5 x 20) --> (1 x 1), and a decrease in the capacitance of 20-25%, approximately equal to the change in atomic density of the surface. The vacuum work functions (PHI) of the emersed (5 x 20) and (1 x 1) surfaces were measured using photoemission spectroscopy, and found to be 5.30 +/- 0.05, and 5.05 +/- 0.05 eV, respectively, which gives a DELTA-PHI consistent with the relative values of the pzcs. Our results were consistent in every respect with the previous findings of Kolb and co-workers on the effect of reconstruction on the double-layer capacity of Au(100) surfaces. RP ROSS, PN (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. NR 45 TC 51 Z9 51 U1 1 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0013-4686 J9 ELECTROCHIM ACTA JI Electrochim. Acta PY 1992 VL 37 IS 4 BP 615 EP 623 DI 10.1016/0013-4686(92)80062-Q PG 9 WC Electrochemistry SC Electrochemistry GA HG823 UT WOS:A1992HG82300006 ER PT B AU OLSEN, KB GRIFFIN, JW MATSON, BS KIEFER, TC FLYNN, CJ AF OLSEN, KB GRIFFIN, JW MATSON, BS KIEFER, TC FLYNN, CJ BE UDEN, PC TI A FIBEROPTIC SPECTROCHEMICAL-EMISSION SENSOR AS A DETECTOR FOR VOLATILE CHLORINATED COMPOUNDS SO ELEMENT-SPECIFIC CHROMATOGRAPHIC DETECTION BY ATOMIC EMISSION SPECTROSCOPY SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP AT THE 199TH NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC : ELEMENT-SPECIFIC CHROMATOGRAPHIC DETECTION BY ATOMIC EMISSION SPECTROSCOPY CY APR 22-27, 1990 CL BOSTON, MA SP AMER CHEM SOC ID GAS-CHROMATOGRAPHY RP OLSEN, KB (reprint author), BATTELLE MEM INST,PACIFIC NW LABS,POB 999,RICHLAND,WA 99352, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2174-X J9 ACS SYM SER PY 1992 VL 479 BP 326 EP 337 PG 12 WC Chemistry, Analytical; Spectroscopy SC Chemistry; Spectroscopy GA BU84R UT WOS:A1992BU84R00019 ER PT B AU CHUM, HL POWER, AJ AF CHUM, HL POWER, AJ BE ROWELL, RM SCHULTZ, TP NARAYAN, R TI OPPORTUNITIES FOR THE COST-EFFECTIVE PRODUCTION OF BIOBASED MATERIALS SO EMERGING TECHNOLOGIES FOR MATERIALS AND CHEMICALS FROM BIOMASS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP AT THE 200TH NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC : EMERGING TECHNOLOGIES FOR MATERIALS AND CHEMICALS FROM BIOMASS CY AUG 26-31, 1990 CL WASHINGTON, DC SP AMER CHEM SOC, DIV CELLULOSE TEXT & PAPER CHEM RP CHUM, HL (reprint author), SOLAR ENERGY RES INST,CHEM CONVERS RES BRANCH,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2171-5 J9 ACS SYM SER PY 1992 VL 476 BP 28 EP 41 PG 14 WC Agronomy; Energy & Fuels; Materials Science, Multidisciplinary SC Agriculture; Energy & Fuels; Materials Science GA BU75C UT WOS:A1992BU75C00003 ER PT B AU CHUM, HL POWER, AJ AF CHUM, HL POWER, AJ BE ROWELL, RM SCHULTZ, TP NARAYAN, R TI THE PROMISE AND PITFALLS OF BIOMASS AND WASTE CONVERSION SO EMERGING TECHNOLOGIES FOR MATERIALS AND CHEMICALS FROM BIOMASS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP AT THE 200TH NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC : EMERGING TECHNOLOGIES FOR MATERIALS AND CHEMICALS FROM BIOMASS CY AUG 26-31, 1990 CL WASHINGTON, DC SP AMER CHEM SOC, DIV CELLULOSE TEXT & PAPER CHEM ID STEAM-EXPLOSION PROCESS; CARBONACEOUS FUELS; PHENOLYSIS LIGNIN; MOLECULAR-BEAM; WOOD ADHESIVES; PYROLYSIS RP CHUM, HL (reprint author), SOLAR ENERGY RES INST,CHEM CONVERS RES BRANCH,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2171-5 J9 ACS SYM SER PY 1992 VL 476 BP 339 EP 353 PG 15 WC Agronomy; Energy & Fuels; Materials Science, Multidisciplinary SC Agriculture; Energy & Fuels; Materials Science GA BU75C UT WOS:A1992BU75C00020 ER PT J AU COOPER, RC SCHIPPER, L AF COOPER, RC SCHIPPER, L TI THE EFFICIENCY OF ENERGY USE IN THE USSR - AN INTERNATIONAL PERSPECTIVE SO ENERGY LA English DT Editorial Material ID UNITED-STATES AB We present an extensive analysis of the structure and intensity of energy use in the USSR since 1960. After a brief review of the energy-supply situation in the USSR, we describe a detailed analysis of measures of sectoral and sub-sectoral activity in the industrial, transportation, residential, and services sectors. The Soviet Union produces more steel and cement, and ships far more freight per capita than most Western countries. But Soviet citizens have less space in their homes and in the service sector, fewer appliances, far fewer cars, and travel only one third as much as their Western counterparts. A comparison of the energy intensities of key activities in the USSR and those of Western countries shows that in most cases the Soviet Union uses more energy than Western countries to produce a given production or output. We reject aggregate measures (such as the ratio of energy use to national income) as tools for comparisons between the past evaluations of Western and Soviet energy use or for predicting energy use in the future because both the structure of the Soviet economy and the intensities of energy uses in the USSR differ so greatly from Western experience. We conclude that there is a large potential for energy savings in the Soviet economy. RP COOPER, RC (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,ENERGY ANAL PROGRAM,BERKELEY,CA 94720, USA. NR 40 TC 11 Z9 11 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0360-5442 J9 ENERGY JI Energy PD JAN PY 1992 VL 17 IS 1 BP 1 EP 24 DI 10.1016/0360-5442(92)90029-Y PG 24 WC Thermodynamics; Energy & Fuels SC Thermodynamics; Energy & Fuels GA GY650 UT WOS:A1992GY65000001 ER PT J AU MEIER, A AF MEIER, A TI HOW TO REVIEW A TECHNICAL PAPER SO ENERGY AND BUILDINGS LA English DT Note AB Peer review of journal articles and other technical reports is a key element in the maintenance of academic integrity. This article assists the reader in the efficient preparation of constructive reviews. The parts of a typical review are listed, as well as formats for the most common situations. Common defects of technical papers are discussed. RP MEIER, A (reprint author), LAWRENCE BERKELEY LAB,BLDG 90,ROOM 4000,BERKELEY,CA 94720, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PY 1992 VL 19 IS 1 BP 75 EP 78 DI 10.1016/0378-7788(92)90037-H PG 4 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA JR279 UT WOS:A1992JR27900007 ER PT J AU AKBARI, H SEZGEN, O AF AKBARI, H SEZGEN, O TI ANALYSIS OF ENERGY USE IN BUILDING SERVICES OF THE INDUSTRIAL SECTOR IN CALIFORNIA - 2 CASE-STUDIES SO ENERGY AND BUILDINGS LA English DT Article AB In this paper, we address the energy use in the building services of the industrial sector by closely examining and analyzing energy use in two industrial facilities in California. Based on the information obtained for the selected case studies, we discuss the design consideration for these industrial buildings, characterize their energy use, and review their conservation and peak-demand reduction potentials. The study concludes that the lighting and the HVAC energy-use characteristics of high-tech industries (as represented by our case-study buildings) and their conservation potentials are very much comparable to those of office buildings. Simulating the impact of conservation measures commonly recommended for office buildings, we estimate that more than 50% of electricity and gas use for the building services in the two case-study facilities can be cost-effectively saved. RP AKBARI, H (reprint author), LAWRENCE BERKELEY LAB, DIV ENERGY & ENVIRONM, BERKELEY, CA 94720 USA. NR 0 TC 4 Z9 4 U1 0 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PY 1992 VL 19 IS 2 BP 133 EP 141 DI 10.1016/0378-7788(92)90007-4 PG 9 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA KE433 UT WOS:A1992KE43300007 ER PT J AU FEUSTEL, HE DIERIS, J AF FEUSTEL, HE DIERIS, J TI A SURVEY OF AIR-FLOW MODELS FOR MULTIZONE STRUCTURES SO ENERGY AND BUILDINGS LA English DT Article AB Airflow models are used to simulate the rates of incoming and outgoing airflows for a building with known leakage under given weather and shielding conditions. Additional information about the flow paths and air-mass flows inside the building can only be made by using multizone airflow models. In order to obtain more information on multizone airflow models, a literature review was performed in 1984. A second literature review and a questionnaire survey performed in 1989 revealed the existence of 50 multizone airflow models, all developed since 1966, two of which are still under development. All these programs use similar flow equations for crack flow, but differ in the versatility to describe the full range of flow phenomena and the algorithm provided for solving the set of nonlinear equations. This literature review has found that newer models are able to describe and simulate the ventilation systems and interrelation of mechanical and natural ventilation. RP FEUSTEL, HE (reprint author), LAWRENCE BERKELEY LAB,DIV APPL SCI,INDOOR ENVIRONM PROGRAM,BERKELEY,CA 94720, USA. NR 0 TC 21 Z9 22 U1 1 U2 5 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PY 1992 VL 18 IS 2 BP 79 EP 100 DI 10.1016/0378-7788(92)90040-N PG 22 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA JC136 UT WOS:A1992JC13600002 ER PT J AU HERRLIN, MK ALLARD, F AF HERRLIN, MK ALLARD, F TI SOLUTION METHODS FOR THE AIR BALANCE IN MULTIZONE BUILDINGS SO ENERGY AND BUILDINGS LA English DT Article AB Air infiltration programs establish infiltration and ventilation rates in a building by the solution of a nonlinear system of equations. This paper discusses various modifications of the Newton-Raphson method and the special characteristics of the resulting linear system of equations. The aim of the paper is selecting efficient and robust methods to solve the system of equations representing the airflow distribution in multizone buildings. Taking into account the special characteristics of the system of equations, we recommend a skyline-Cholesky's method for the linear solver. This method can be used in a general way for these problems and it appears to be very efficient in avoiding unnecessary operations on zero elements. The choice of an under-relaxation process to ensure the convergence and efficiency is not obvious. Two different methods are used to find the under-relaxation coefficients. The extrapolated method uses two steps of fixed-point iteration to calculate the starting value for the next step of the process. The optimized method uses a search routine where the direction of search is determined by Newton-Raphson and the distance of movement is determined by minimization of a related one-dimensional function. In studying the methods on the same sample of test cases, we found that they are very similar regarding CPU time. However, the optimized method appears to be safer and more efficient in the resolution of the nonlinear system. We, therefore, recommend using the optimized method for the nonlinear solver. RP HERRLIN, MK (reprint author), LAWRENCE BERKELEY LAB,ENERGY PERFORMANCE BLD GRP,BERKELEY,CA 94720, USA. NR 0 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PY 1992 VL 18 IS 2 BP 159 EP 170 DI 10.1016/0378-7788(92)90044-H PG 12 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA JC136 UT WOS:A1992JC13600006 ER PT J AU BUSCH, JF AF BUSCH, JF TI A TALE OF 2 POPULATIONS - THERMAL COMFORT IN AIR-CONDITIONED AND NATURALLY VENTILATED OFFICES IN THAILAND SO ENERGY AND BUILDINGS LA English DT Article AB A field study of thermal comfort was conducted in Bangkok, Thailand, in which over 11 00 office workers responded to a questionnaire while simultaneous physical measurements were taken. In this study we explore whether there is justification for adopting a comfort standard that differs from those developed for office workers accustomed to more temperate climates. Both air-conditioned and naturally ventilated offices were surveyed. Participants cast votes on standard subjective thermal rating scales and these were correlated with temperature indices that variously account for the thermal impacts of humidity, radiant temperature, air velocity, and clothing levels. Following the criteria used in developing a widely adopted thermal comfort standard, it was found that the upper temperature bound for a Thai comfort standard, instead of being the currently accepted level of 26.1-degrees-C, should be as high as 31-degrees-C for office workers accustomed to naturally ventilated spaces, and as high as 28-degrees-C for those accustomed to air-conditioning. Comparing the responses from the naturally ventilated buildings with both those from the air-conditioned buildings and from studies conducted in the temperate regions provides convincing evidence of acclimatization. These and other findings of this study suggest that interior spaces in Thailand can be cooled to a far lesser degree without sacrificing comfort. RP BUSCH, JF (reprint author), LAWRENCE BERKELEY LAB,DIV APPL SCI,ENERGY ANAL PROGRAM,BERKELEY,CA 94720, USA. NR 0 TC 112 Z9 121 U1 2 U2 17 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0378-7788 J9 ENERG BUILDINGS JI Energy Build. PY 1992 VL 18 IS 3-4 BP 235 EP 249 DI 10.1016/0378-7788(92)90016-A PG 15 WC Construction & Building Technology; Energy & Fuels; Engineering, Civil SC Construction & Building Technology; Energy & Fuels; Engineering GA JN935 UT WOS:A1992JN93500006 ER PT J AU GUPTA, R GANGWAL, SK JAIN, SC AF GUPTA, R GANGWAL, SK JAIN, SC TI DEVELOPMENT OF ZINC FERRITE SORBENTS FOR DESULFURIZATION OF HOT COAL-GAS IN A FLUID-BED REACTOR SO ENERGY & FUELS LA English DT Article AB Advanced integrated gasification combined cycle (IGCC) power generation systems require the development of high-temperature, regenerable, desulfurization sorbents capable of removing hydrogen sulfide from coal gasifier gas to very low levels. Fludized-bed desulfurization reactors offer significant potential advantages in IGCC systems compared to fixed- and moving-bed reactors because of their ability to control the highly exothermic regeneration involved. However, a durable, attrition-resistant sorbent in the 100- to 300-mu-m-size range is needed. Thus, the objective of this investigation was to identify and demonstrate methods for enhancing the long-term chemical reactivity and mechanical strength of zinc ferrite, a leading regenerable sorbent, for fluidized-bed applications. A bench-scale, high-temperature, high-pressure, fluidized-bed reactor (3-in. i.d.) system capable of operating up to 350 psig and 850-degrees-C was designed and built. A total of 175 sulfidation-regeneration cycles were carried out using KRW-type coal gas with various zinc ferrite formulations. A number of sorbent manufacturing techniques, including spray drying, impregnation, crushing and screening, and granulation, were investigated. While fluidizable sorbents prepared by crushing the durable pellets and screening had acceptable sulfur capacity, they underwent excessive attrition during multicycle testing. The sorbent formulations prepared by a proprietary granulation technique were found to have excellent attrition resistance and chemical reactivity during multicycle testing. However, application of zinc ferrite was limited to a maximum temperature of about 550-degrees-C, above which excessive sorbent weakening was observed possibly due to chemical transformations. C1 US DOE,MORGANTOWN ENERGY TECHNOL CTR,MORGANTOWN,WV 26507. RP GUPTA, R (reprint author), RES TRIANGLE INST,POB 12194,RES TRIANGLE PK,NC 27709, USA. RI sun, liva/H-3710-2011 NR 18 TC 60 Z9 65 U1 3 U2 11 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0887-0624 J9 ENERG FUEL JI Energy Fuels PD JAN-FEB PY 1992 VL 6 IS 1 BP 21 EP 27 DI 10.1021/ef00031a004 PG 7 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA HA080 UT WOS:A1992HA08000004 ER PT J AU WHITE, CM DOUGLAS, LJ HACKETT, JP ANDERSON, RR AF WHITE, CM DOUGLAS, LJ HACKETT, JP ANDERSON, RR TI CHARACTERIZATION OF SYNTHETIC GASOLINE FROM THE CHLOROMETHANE ZEOLITE REACTION SO ENERGY & FUELS LA English DT Article ID SILICA-BASED CU; FUMED SILICA; LA CATALYSTS; OXYHYDROCHLORINATION; METHANOL; CONVERSION; COLUMNS AB Products from the reaction of chloromethane with a zeolite have been characterized using high-resolution gas chromatography combined with either mass spectrometry or Fourier transform infrared spectroscopy. Hydrocarbon gases having four carbons and less were about 53 wt % of the total product. A condensed liquid product constituted about 47 wt % of the product. Over 240 compounds were analytically separated from the condensed liquid product by gas chromatography, allowing the identification of 106 products that constituted about 89 wt % of the condensed liquid product. Acyclic and cyclic alkanes and olefins, as well as aromatics, make up the majority of the condensed liquid product, which contained compounds having carbon numbers up to 13. Chloroalkanes, also found in the product, are thought to arise from addition of hydrogen chloride to olefins. Hydrocarbon products from the reaction of chloromethane and zeolite are qualitatively similar to those from the reaction of methanol and zeolite, although the isomer distribution was quantitatively different among the polymethylbenzenes. 1,2,4-Trimethylbenzene was the major organic product, constituting 45 wt % of the condensed liquid product. Hydrocarbon products containing four carbons and less were analyzed using a porous layer open tubular column coated with Al2O3/KCl. The alumina stationary phase reacted with 2-chloropropane to form propene. Reaction of the stationary phase with the analytes limits the use of alumina columns for characterization of products from this reaction. RP WHITE, CM (reprint author), PITTSBURGH ENERGY TECHNOL CTR,DIV INDIRECT LIQUEFACT,POB 10940,PITTSBURGH,PA 15236, USA. NR 21 TC 16 Z9 16 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0887-0624 J9 ENERG FUEL JI Energy Fuels PD JAN-FEB PY 1992 VL 6 IS 1 BP 76 EP 82 DI 10.1021/ef00031a012 PG 7 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA HA080 UT WOS:A1992HA08000012 ER PT J AU BUCHANAN, AC BRITT, PF BIGGS, CA AF BUCHANAN, AC BRITT, PF BIGGS, CA TI DISPERSED CATALYSTS - EVIDENCE FOR A ROLE FOR SOLID-STATE INTERACTIONS SO ENERGY & FUELS LA English DT Note ID COAL-LIQUEFACTION; THERMOLYSIS; CHEMISTRY RP OAK RIDGE NATL LAB, DIV CHEM, OAK RIDGE, TN 37831 USA. NR 16 TC 5 Z9 5 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0887-0624 EI 1520-5029 J9 ENERG FUEL JI Energy Fuels PD JAN-FEB PY 1992 VL 6 IS 1 BP 110 EP 112 DI 10.1021/ef00031a017 PG 3 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA HA080 UT WOS:A1992HA08000017 ER PT J AU GRAY, LJ CHANG, SJ AF GRAY, LJ CHANG, SJ TI HYPERSINGULAR INTEGRAL FORMULATION OF ELASTIC WAVE SCATTERING SO ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS LA English DT Article DE BOUNDARY INTEGRAL EQUATION; HYPERSINGULAR INTEGRALS; ELASTIC WAVE SCATTERING; CRACKS ID BOUNDARY ELEMENT METHOD; EQUATIONS AB A hypersingular boundary integral formulation for calculating two dimensional elastic wave scattering from thin bodies and cracks is described. The boundary integral equation for surface displacement is combined with the hypersingular equation for surface traction. The difficult part in employing the traction equation, the derivation of analytical formulas for the hypersingular integral by means of a limit to the boundary, is easily handled by means of symbolic computation. In addition, the terms containing an integrable logarithmic singularity are treated by a straightforward numerical method, bypassing the use of Taylor series expansions. Example wave scattering calculations for cracks and thin ellipses are presented. C1 IBM CORP,BERGEN SCI CTR,N-5008 BERGEN,NORWAY. OAK RIDGE NATL LAB,DIV RES REACTOR,OAK RIDGE,TN 37831. NR 26 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0955-7997 J9 ENG ANAL BOUND ELEM JI Eng. Anal. Bound. Elem. PY 1992 VL 10 IS 4 BP 337 EP 343 DI 10.1016/0955-7997(92)90148-Z PG 7 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA KG070 UT WOS:A1992KG07000009 ER PT J AU INGBER, MS HICKOX, CE AF INGBER, MS HICKOX, CE TI A MODIFIED BURTON-MILLER ALGORITHM FOR TREATING THE UNIQUENESS OF REPRESENTATION PROBLEM FOR EXTERIOR ACOUSTIC RADIATION AND SCATTERING PROBLEMS SO ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS LA English DT Article DE ACOUSTIC RADIATION; ACOUSTIC SCATTERING; HELMHOLTZ INTEGRAL EQUATION; BURTON-MILLER ALGORITHM ID BOUNDARY INTEGRAL-EQUATIONS; ELEMENT METHOD; WAVENUMBERS AB A modification to the Burton-Miller algorithm is formulated for exterior acoustic radiation and scattering problems which resolves the uniqueness of representation problem associated with the Helmholtz integral equation method (HIEM) at the interior eigenvalues. In particular, this modification reduces the required number of integral equation evaluations and allows for the continued use of the popular higher-order Lagrangian shape functions. Several example problems are considered to demonstrate the difficulties and subtleties of the uniqueness of representation problems associated with the Helmholtz integral equation method and to demonstrate the effectiveness of the modified Burton-Miller algorithm in overcoming these problems. C1 SANDIA NATL LABS,DEPT FLUID & THERMAL SCI,ALBUQUERQUE,NM 87185. RP INGBER, MS (reprint author), UNIV NEW MEXICO,DEPT MECH ENGN,ALBUQUERQUE,NM 87131, USA. NR 21 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0955-7997 J9 ENG ANAL BOUND ELEM JI Eng. Anal. Bound. Elem. PY 1992 VL 9 IS 4 BP 323 EP 329 DI 10.1016/0955-7997(92)90017-2 PG 7 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications SC Engineering; Mathematics GA JN735 UT WOS:A1992JN73500005 ER PT J AU PLEWA, MJ KALINOWSKI, DP LARIMER, FW AF PLEWA, MJ KALINOWSKI, DP LARIMER, FW TI MUTATION SPECTRUM OF SPONTANEOUS FRAMESHIFT REVERTANTS IN YEAST USING DOUBLE-STRAND GAP REPAIR SO ENVIRONMENTAL AND MOLECULAR MUTAGENESIS LA English DT Article DE HIS4; SACCHAROMYCES-CEREVISIAE; TRANSIENT MISALIGNMENT; STRAND SLIPPAGE ID ESCHERICHIA-COLI; TRANSFORMATION; RECOMBINATION; DNA; SPECIFICITY; MECHANISMS AB A mutation spectrum was constructed from a series of randomly isolated spontaneous His+ revertants of the frameshift mutant his4-38 in Saccharomyces cerevisiae. For each true revertant, a 438 bp region encompassing his4-38 on chromosome III was recovered into a shuttle vector by double-strand gap repair. Of the 45 independent His' revertants sequenced, 44 were -1 base deletions and one revertant was a +2 base insertion. The 1 deletions exhibited a bimodal distribution. Of the bases encompassing the his4-38 region from +153-181, approximately 45% were not involved in a reversion event, although a -1 frameshift within this region will result in a viable His' revertant. Approximately 49% of -1 events occurred within runs of 3 repeated bases. At these sites the strand-slippage model for frameshift mutation is supported. However, the -1 events occurring at sites of 2 repeated bases and the low frequency (2%) of +2 base insertions suggest that the transiently misaligned template model is a significant mechanism in reversion of his4-38. When the distribution of -1 events at repeated bases was discounted, a hotspot involving a -T at position +163 was resolved. C1 OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831. RP PLEWA, MJ (reprint author), UNIV ILLINOIS,INST ENVIRONM STUDIES,1101 W PEABODY DR,URBANA,IL 61801, USA. NR 20 TC 1 Z9 1 U1 2 U2 2 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0893-6692 J9 ENVIRON MOL MUTAGEN JI Environ. Mol. Mutagen. PY 1992 VL 20 IS 2 BP 84 EP 88 DI 10.1002/em.2850200203 PG 5 WC Environmental Sciences; Genetics & Heredity; Toxicology SC Environmental Sciences & Ecology; Genetics & Heredity; Toxicology GA JL088 UT WOS:A1992JL08800002 PM 1505532 ER PT J AU NATIV, R AF NATIV, R TI RECHARGE INTO SOUTHERN HIGH-PLAINS AQUIFER - POSSIBLE MECHANISMS, UNRESOLVED QUESTIONS SO ENVIRONMENTAL GEOLOGY AND WATER SCIENCES LA English DT Article ID PLAYA-LAKE BASINS; TEXAS; MEXICO AB The High Plains aquifer in the Southern High Plains (Texas and New Mexico), consisting of Tertiary, Cretaceous, and Triassic formations, has traditionally been considered to be recharged by its uppermost water-bearing unit, the Tertiary Ogallala aquifer. This article provides hydrologic, chemical, and isotopic evidence that in the Southern High Plains: (1) Cretaceous rocks actually contain independent recharge sources; (2) Triassic rocks cannot currently be recharged by the Ogallala aquifer in significant quantities; and (3) in places, both Cretaceous and Triassic aquifers recharge the overlying Ogallala aquifer. On the basis of chemical and isotopic data, playa lakes seem to act as the predominant recharge source of the Ogallala aquifer, suggesting recharge rates greater than 30 mm/yr, as opposed to the much lower rates reported by others. The Cretaceous aquifers are being recharged by cross-formational flow from the Ogallala aquifer but also from overlying Quaternary sands and the underlying Triassic aquifer in eastern New Mexico. Current recharge into the Triassic aquifer may be insignificant. RP NATIV, R (reprint author), US DOE,OAK RIDGE NATL LAB,POB 2008,MS-6352,OAK RIDGE,TN 37831, USA. NR 41 TC 11 Z9 11 U1 0 U2 9 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0177-5146 J9 ENVIRON GEOL WATER S PD JAN-FEB PY 1992 VL 19 IS 1 BP 21 EP 32 DI 10.1007/BF01740574 PG 12 WC Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Environmental Sciences & Ecology; Geology; Water Resources GA GY877 UT WOS:A1992GY87700005 ER PT J AU KING, AW EMANUEL, WR POST, WM AF KING, AW EMANUEL, WR POST, WM TI PROJECTING FUTURE CONCENTRATIONS OF ATMOSPHERIC CO2 WITH GLOBAL CARBON-CYCLE MODELS - THE IMPORTANCE OF SIMULATING HISTORICAL CHANGES SO ENVIRONMENTAL MANAGEMENT LA English DT Article DE CO2; CARBON BUDGET; ATMOSPHERE; BIOSPHERE; HISTORICAL; LAND USE ID PAST 2 CENTURIES; DIFFUSION-MODEL; POLAR ICE; OCEAN; DIOXIDE; RECORD; RADIOCARBON; ECOSYSTEMS; BIOSPHERE; STORAGE AB Projections of future atmospheric CO2 concentrations using global carbon cycle models and assumed time series of future anthropogenic CO2 emissions are only useful if simulations agree reasonably well with the observed history of past changes in atmospheric CO2. In this article we compare simulations from a set of eight global carbon cycle models with observations of atmospheric CO2 from the Siple Station, Antarctica, ice core and the monitoring station at Mauna Loa Observatory, Hawaii, USA. Our comparisons reinforce previous assessments that early estimates of biospheric CO2 emissions derived by reconstruction of historical land-use change are incompatible with the understanding atmosphere-ocean CO2 exchange codified in conventional carbon cycle models and the observed history of changes in atmospheric CO2. More recent estimates of the history of CO2 emissions associated with land-use change do not significantly resolve this incompatibility. Terrestrial biospheric emissions estimated by deconvolution of atmospheric CO2 observations provide reasonable correspondence between simulation and observation, but the deconvolution estimates differ dramatically from the estimates by land-use reconstruction. Resolution of this difference is a challenge for modelers of the global terrestrial biosphere. In the interim, caution is required in interpreting atmospheric CO2 projections from models that have not yet resolved the basic inconsistencies among emission estimates, models of oceanic uptake, and observations of atmospheric CO2. RP KING, AW (reprint author), OAK RIDGE NATL LAB, DIV ENVIRONM SCI, POB 2008, OAK RIDGE, TN 37831 USA. RI Post, Wilfred/B-8959-2012 NR 77 TC 34 Z9 40 U1 0 U2 8 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0364-152X EI 1432-1009 J9 ENVIRON MANAGE JI Environ. Manage. PD JAN-FEB PY 1992 VL 16 IS 1 BP 91 EP 108 DI 10.1007/BF02393912 PG 18 WC Environmental Sciences SC Environmental Sciences & Ecology GA GY818 UT WOS:A1992GY81800009 ER PT J AU CECIL, LD GESELL, TF AF CECIL, LD GESELL, TF TI SAMPLING AND ANALYSIS FOR RN-222 DISSOLVED IN GROUND-WATER AND SURFACE-WATER SO ENVIRONMENTAL MONITORING AND ASSESSMENT LA English DT Article AB Radon-222 is a naturally occurring radioactive gas in the uranium-238 decay series that has traditionally been called, simply, radon. The lung cancer risks associated with the inhalation of radon decay products have been well documented by epidemiological studies on populations of uranium miners. The realization that radon is a public health hazard has raised the need for sampling and analytical guidelines for field personnel. Several sampling and analytical methods are being used to document radon concentrations in ground water and surface water worldwide but no convenient, single set of guidelines is available. Three different sampling and analytical methods - bubbler, liquid scintillation, and field screening - are discussed in this paper. The bubbler and liquid scintillation methods have high accuracy and precision, and small analytical method detection limits of 0.2 and 10 pCi/l (picocuries per liter), respectively. The field screening method generally is used as a qualitative reconnaissance tool. C1 US DOE,RADIOL & ENVIRONM SCI LAB,IDAHO FALLS,ID 83402. RP CECIL, LD (reprint author), US GEOL SURVEY,IDAHO NATL ENGN LAB,PROJECT OFF,POB 2230,IDAHO FALLS,ID 83402, USA. NR 0 TC 5 Z9 5 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0167-6369 J9 ENVIRON MONIT ASSESS JI Environ. Monit. Assess. PD JAN PY 1992 VL 20 IS 1 BP 55 EP 66 DI 10.1007/BF00396521 PG 12 WC Environmental Sciences SC Environmental Sciences & Ecology GA HF102 UT WOS:A1992HF10200006 PM 24234030 ER PT J AU KNOBEL, LL CECIL, LD WEGNER, SJ MOORE, LL AF KNOBEL, LL CECIL, LD WEGNER, SJ MOORE, LL TI COMPARISON OF THE EFFECTS OF FILTRATION AND PRESERVATION METHODS ON ANALYSES FOR SR-90 IN GROUND-WATER SO ENVIRONMENTAL MONITORING AND ASSESSMENT LA English DT Article AB From 1952 to 1988, about 140 curies of strontium-90 were discharged in liquid waste to disposal ponds and wells at the INEL (Idaho National Engineering Laboratory). Water from four wells was sampled as part of the U.S. Geological Survey's quality-assurance program to evaluate the effects of filtration and preservation methods on strontium-90 concentrations in ground water at the INEL. Water from each well was filtered through either a 0.45-or a 0.1-micrometer membrane filter; unfiltered samples also were collected. Two sets of filtered and two sets of unfiltered water samples were collected at each well. One of the two sets of water samples was field acidified. Strontium-90 concentrations ranged from below the reporting level to 52 +/- 4 picocuries per liter. Descriptive statistics were used to determine reproducibility of the analytical results for strontium-90 concentrations in water from each well. Comparisons were made with unfiltered, acidified samples at each well. Analytical results for strontium-90 concentrations in water from well 88 were not in statistical agreement between the unfiltered, acidified sample and the filtered (0.45 micrometer), acidified sample. The strontium-90 concentration for water from well 88 was less than the reporting level. For water from wells with strontium-90 concentrations at or above the reporting level, 94 percent or more of the strontium-90 is in true solution or in colloidal particles smaller than 0.1 micrometer. These results suggest that changes in filtration and preservation methods used for sample collection do not significantly affect reproducibility of strontium-90 analyses in ground water at the INEL. C1 US DOE,RADIOL & ENVIRONM SCI LAB,IDAHO FALLS,ID. RP KNOBEL, LL (reprint author), US GEOL SURVEY,IDAHO NATL ENGN LAB,PROJECT OFF,IDAHO FALLS,ID 83402, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0167-6369 J9 ENVIRON MONIT ASSESS JI Environ. Monit. Assess. PD JAN PY 1992 VL 20 IS 1 BP 67 EP 80 DI 10.1007/BF00396522 PG 14 WC Environmental Sciences SC Environmental Sciences & Ecology GA HF102 UT WOS:A1992HF10200007 PM 24234031 ER PT J AU HAINES, TA KOMOV, V JAGOE, CH AF HAINES, TA KOMOV, V JAGOE, CH TI LAKE ACIDITY AND MERCURY CONTENT OF FISH IN DARWIN-NATIONAL-RESERVE, RUSSIA SO ENVIRONMENTAL POLLUTION LA English DT Article ID METHYL MERCURY; ONTARIO LAKES; WATER-QUALITY; YELLOW PERCH; SEDIMENTS; PH; METHYLMERCURY; ACCUMULATION; SPECIATION; LOADINGS AB Darwin National Reserve is a protected natural area on the north-west shore of the Rybinsk Reservoir, 350 km north of Moscow. In June 1989, six lakes in the Reserve and the reservoir were surveyed to assess lake acidity and the mercury content of perch, Perca fluviatilis. Five were seepage lakes with no permanent inlets or outlets and one was a drainage lake with both an inlet and an outlet. The seepage lakes were acidic (mean pH 4.6-4.8) and varied in colour from 20 to 200 Hazen units. The drainage lake and reservoir were alkaline (mean pH 8.0-8.1) and colour spanned a similar range. The mean mercury content of perch dorsal epaxial muscle ranged from 0.5 to 1.1-mu-g g-1 wet weight in the five acidic lakes and from 0.1 to 0.2-mu-g g-1 in the alkaline lakes. Fish mercury content was negatively correlated with lake pH (r = -0.93, P = 0.002) if all waters were considered together. and positively correlated with apparent colour (r = 0.91. P = 0.03) in the seepage lakes. C1 ACAD SCI,INST BIOL INLAND WATERS,BOROK 152742,USSR. SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. RP HAINES, TA (reprint author), UNIV MAINE,DEPT ZOOL,US FISH & WILDLIFE SERV,NATL FISHERIES CONTAMINANT RES CTR,ORONO,ME 04469, USA. RI Komov, Viktor/O-8916-2015 OI Komov, Viktor/0000-0001-9124-7428 NR 29 TC 31 Z9 37 U1 1 U2 15 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 78 IS 1-3 BP 107 EP 112 DI 10.1016/0269-7491(92)90017-5 PG 6 WC Environmental Sciences SC Environmental Sciences & Ecology GA JG107 UT WOS:A1992JG10700016 PM 15091935 ER PT J AU HETTELINGH, JP GARDNER, RH HORDIJK, L AF HETTELINGH, JP GARDNER, RH HORDIJK, L TI A STATISTICAL APPROACH TO THE REGIONAL USE OF CRITICAL LOADS SO ENVIRONMENTAL POLLUTION LA English DT Article; Proceedings Paper CT 4TH INTERNATIONAL CONF ON ACIDIC DEPOSITION : ITS NATURE AND IMPACTS CY SEP 16-21, 1990 CL GLASGOW, SCOTLAND SP ROYAL SOC EDINBURGH ID SULFUR AB The premise of this paper is that: (1) effects of spatial heterogeneity of watershed response to acid deposition must be considered when models are used to set abatement policies, and (2) the evaluation of critical chemical values is a better measure of the effects of abatement policies than the comparison of deposition values to critical loads. The authors used Monte Carlo methods to apply a site-specific version of the RAINS-Lake-Model to a regional data set from The Netherlands. Statistical methods were then used to identify the important parameters affecting the spatial and temporal response, i.e. a change in pH, of watersheds to acid deposition and a subset of sensitive and insensitive watersheds were derived. The results show that the failure to subset a region into sensitive and insensitive zones may result in an erroneous estimation of the effect of abatement policies based on critical loads alone. C1 OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37830. RP HETTELINGH, JP (reprint author), NATL INST PUBL HLTH & ENVIRONM PROTECT,POB 1,3720 BA BILTHOVEN,NETHERLANDS. NR 19 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 77 IS 2-3 BP 177 EP 183 DI 10.1016/0269-7491(92)90075-L PG 7 WC Environmental Sciences SC Environmental Sciences & Ecology GA JB645 UT WOS:A1992JB64500012 PM 15091957 ER PT J AU COOK, RB ROSE, KA BRENKERT, AL RYAN, PF AF COOK, RB ROSE, KA BRENKERT, AL RYAN, PF TI SYSTEMATIC COMPARISON OF ILWAS, MAGIC, AND ETD WATERSHED ACIDIFICATION MODELS .3. MASS BALANCE BUDGETS FOR ACID NEUTRALIZING CAPACITY SO ENVIRONMENTAL POLLUTION LA English DT Article; Proceedings Paper CT 4TH INTERNATIONAL CONF ON ACIDIC DEPOSITION : ITS NATURE AND IMPACTS CY SEP 16-21, 1990 CL GLASGOW, SCOTLAND SP ROYAL SOC EDINBURGH AB Three watershed acidification models ILWAS, MAGIC, and ETD-were quantitatively compared to determine model structural differences by using a combination of input mapping and ANC mass balance budgets. Input mapping is a set of rules and algorithms to ensure that consistent input values were simultaneously derived for all three models. ANC budget analysis under current SO42- deposition and a 70% reduction in SO42- deposition allows examination of the relative importance of biogeochemical processes in affecting predictions of ANC or predicted changes in ANC. Model inputs were based on two dissimilar watersheds having characteristics typical of watersheds in the northeastern US. After mapping inputs, the three models predicted values of outflow ANC fluxes that were similar among the models for each watershed and deposition scenario. Within each watershed, the changes in outflow ANC fluxes between the scenarios were similar for the three models. Terrestrial weathering was the major source of ANC for all three models for both watersheds and deposition scenarios. The contributions of other processes to the ANC of the two watersheds were, under certain conditions, model-specific. Cation exchange was responsible for changes in ANC when deposition decreased for the three models. Other processes responsible for changes in ANC between scenarios were SO42- sorption (for MAGIC) and in-lake weathering (for ETD). The processes responsible for the change in ANC from a change in deposition (cation exchange, SO42- sorption, and in-lake weathering) were different from the processes contributing to the absolute ANC for a given deposition scenario (terrestrial weathering). The budget analysis complements an earlier Monte Carlo analysis that showed that the three models are structurally different and that predictions viewed on a relative scale are more similar than absolute scale predictions. C1 SCI APPLICAT INT CORP,OAK RIDGE,TN 37830. RP COOK, RB (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831, USA. OI Cook, Robert/0000-0001-7393-7302 NR 13 TC 4 Z9 5 U1 1 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 77 IS 2-3 BP 235 EP 242 DI 10.1016/0269-7491(92)90082-L PG 8 WC Environmental Sciences SC Environmental Sciences & Ecology GA JB645 UT WOS:A1992JB64500019 PM 15091964 ER PT J AU SULLIVAN, TJ TURNER, RS CHARLES, DF CUMMING, BF SMOL, JP SCHOFIELD, CL DRISCOLL, CT COSBY, BJ BIRKS, HJB UUTALA, AJ KINGSTON, JC DIXIT, SS BERNERT, JA RYAN, PF MARMOREK, DR AF SULLIVAN, TJ TURNER, RS CHARLES, DF CUMMING, BF SMOL, JP SCHOFIELD, CL DRISCOLL, CT COSBY, BJ BIRKS, HJB UUTALA, AJ KINGSTON, JC DIXIT, SS BERNERT, JA RYAN, PF MARMOREK, DR TI USE OF HISTORICAL ASSESSMENT FOR EVALUATION OF PROCESS-BASED MODEL PROJECTIONS OF FUTURE ENVIRONMENTAL-CHANGE - LAKE ACIDIFICATION IN THE ADIRONDACK MOUNTAINS, NEW-YORK, USA SO ENVIRONMENTAL POLLUTION LA English DT Article; Proceedings Paper CT 4TH INTERNATIONAL CONF ON ACIDIC DEPOSITION : ITS NATURE AND IMPACTS CY SEP 16-21, 1990 CL GLASGOW, SCOTLAND SP ROYAL SOC EDINBURGH ID STREAMWATER CHEMISTRY; WATER ACIDIFICATION; SURFACE WATERS; RECONSTRUCTIONS; SOIL; DEPOSITION; CATCHMENT; BIRKENES; NORWAY; ILWAS AB Because of the considerable uncertainties associated with modeling complex ecosystem processes, it is essential that every effort be made to test model performance prior to relying on model projections for assessment of future surface water chemical response to environmental perturbation. Unfortunately, long-term chemical data with which to validate model performance are seldom available. The authors present here an evaluation of historical acidification of lake waters in the northeastern United States, and compare historical changes in a set of lakes to hindcasts from the same watershed model (MAGIC) used to estimate future changes in response to acidic deposition. The historical analyses and comparisons with MAGIC model hindcasts and forecasts of acid-base response demonstrate that the acidic and low-ANC lakes in this region are responsive to strong acid inputs. However, the model estimates suggest lakewater chemistry is more responsive to atmospheric inputs of sulfur than do the estimates based on paleolimnological historical analyses. A 'weight-of-evidence approach' that incorporates all available sources of information regarding acid base response provides a more reasonable estimate of future change than an approach based on model projections alone. The results of these analyses have important implications for predicting future surface water chemical change in response to acidic deposition, establishing critical loads of atmospheric pollutants, and other environmental assessment activities where natural variation often exceeds the trends under investigation (high noise-to-signal ratio). Under these conditions, it is particularly important to evaluate future model projections in light of historical trends data. C1 US EPA,ENVIRONM RES LAB,INDIANA UNIV,CORVALLIS,OR 97333. SYRACUSE UNIV,DEPT CIVIL ENGN,SYRACUSE,NY 13244. DUKE UNIV,SCH FORESTRY & ENVIRONM SCI,DURHAM,NC 27706. UNIV BERGEN,INST BOT,N-5007 BERGEN,NORWAY. SCI APPLICAT INT CORP,OAK RIDGE,TN 37831. ENVIRONM & SOCIAL SYST ANALYSTS,VANCOUVER V6J 5C6,BC,CANADA. QUEENS UNIV,DEPT BIOL,KINGSTON K7L 3N6,ONTARIO,CANADA. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. CORNELL UNIV,DEPT NAT RESOURCES,ITHACA,NY 14853. RP SULLIVAN, TJ (reprint author), E&S ENVIRONM CHEM INC,POB 609,CORVALLIS,OR 97339, USA. RI Birks, H John B/C-3103-2008; Driscoll, Charles/F-9832-2014; Smol, John/A-8838-2015; Cosby, Bernard/B-5653-2012; OI Birks, H John B/0000-0002-5891-9859; Driscoll, Charles/0000-0003-2692-2890 NR 47 TC 17 Z9 17 U1 0 U2 4 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 77 IS 2-3 BP 253 EP 262 DI 10.1016/0269-7491(92)90084-N PG 10 WC Environmental Sciences SC Environmental Sciences & Ecology GA JB645 UT WOS:A1992JB64500021 PM 15091966 ER PT J AU TURNER, RS RYAN, PF MARMOREK, DR THORNTON, KW SULLIVAN, TJ BAKER, JP CHRISTENSEN, SW SALE, MJ AF TURNER, RS RYAN, PF MARMOREK, DR THORNTON, KW SULLIVAN, TJ BAKER, JP CHRISTENSEN, SW SALE, MJ TI SENSITIVITY TO CHANGE FOR LOW-ANC EASTERN UNITED-STATES LAKES AND STREAMS AND BROOK TROUT POPULATIONS UNDER ALTERNATIVE SULFATE DEPOSITION SCENARIOS SO ENVIRONMENTAL POLLUTION LA English DT Article; Proceedings Paper CT 4TH INTERNATIONAL CONF ON ACIDIC DEPOSITION : ITS NATURE AND IMPACTS CY SEP 16-21, 1990 CL GLASGOW, SCOTLAND SP ROYAL SOC EDINBURGH ID ACIDIC DEPOSITION; ACIDIFICATION; CHEMISTRY; WATER; EMISSIONS; SUDBURY; ONTARIO; MODEL; ILWAS AB A weight-of-evidence approach was used by the US National Acid Precipitation Assessment Program (NAPAP) to assess the sensitivity of chemistry and biology of lakes and streams to hypothesized changes in sulfate deposition over the next 50 years. The analyses focused on projected effects in response to differences in the magnitude and the timing of changes in sulfate deposition in the northeastern United States, the Mid-Appalachian Highlands, and the Southern Blue Ridge Province. A number of tools was used to provide the weight of evidence that is required to have confidence in an assessment that has many uncertainties because of the complexity of the systems for which the projections of future conditions were made and because of limited historical data. The MAGIC model provided the projections of chemical changes in response to alternative deposition scenarios. Projected chemical conditions were input into biological models that evaluate effects on fish populations. The sensitivity of water chemistry and brook trout resources to the hypothesized changes in deposition was found to be greatest in the Adirondacks and Mid-Atlantic Highlands. Under the hypothesized sulfur deposition reduction scenarios, chemical conditions suitable for fish were projected to improve 20-30 years sooner than with the scenario that assumed no new legislated controls. Other lines of evidence, e.g. other models, field observations, and paleolimnological findings, were used to evaluate uncertainty in the projections. Model parameter/calibration uncertainty for the chemical models and population sampling uncertainty were explicitly quantified. Model structural uncertainties were bracketed using model comparisons, recent measured changes, and paleolimnological reconstructions of historical changes in lake chemistry. C1 SCI APPLICAT INT CORP,OAK RIDGE,TN 37831. ESSA LTD,VANCOUVER V6J 5C6,BC,CANADA. FTN ASSOCIATES LTD,LITTLE ROCK,AR 72211. E&S ENVIRONM CHEM INC,CORVALLIS,OR 97339. WESTERN AQUAT INC,DURHAM,NC 27713. RP TURNER, RS (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831, USA. NR 30 TC 8 Z9 8 U1 1 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 77 IS 2-3 BP 269 EP 277 DI 10.1016/0269-7491(92)90086-P PG 9 WC Environmental Sciences SC Environmental Sciences & Ecology GA JB645 UT WOS:A1992JB64500023 PM 15091968 ER PT J AU FERENBAUGH, RW GLADNEY, ES SOHOLT, LF LYALL, KA WALLWORKBARBER, MK HERSMAN, LE AF FERENBAUGH, RW GLADNEY, ES SOHOLT, LF LYALL, KA WALLWORKBARBER, MK HERSMAN, LE TI ENVIRONMENTAL INTERACTIONS OF SULPHLEX PAVEMENT SO ENVIRONMENTAL POLLUTION LA English DT Article ID SULFUR AB Sulphlex, a mixture of elemental sulfur and plasticizers, has been considered for use as an asphalt substitute in road construction. Because this material contains substantial quantities of elemental sulfur, it is a potential substrate for growth of sulfur-oxidising bacteria. Experiments, performed to determine the susceptibility of Sulphlex in Sulphlex-containing media to degradation by Thiobacillus thiooxidans, resulted in breakdown of the Sulphlex material and concomitant production of acid. In concurrent studies, plants were grown in Sulphlex-amended soils. These plants exhibited higher sulfur content and reduced productivity as compared with plants grown in unamended soils, indicating that Sulphlex was being broken down in the soil and that the breakdown products were apparently having a detrimental effect on plant productivity. These experiments indicate that naturally occurring sulfur-oxidising bacteria have the potential to break down Sulphlex paving material, resulting in adverse effects on both the structural integrity of the pavement and the local environment. C1 UNIV CALIF LOS ALAMOS SCI LAB,ENVIRONM CHEM GRP,LOS ALAMOS,NM 87545. UNIV CALIF LOS ALAMOS SCI LAB,ENVIRONM RESTORAT GRP,LOS ALAMOS,NM 87545. UNIV CALIF LOS ALAMOS SCI LAB,ENVIRONM SURVEILLANCE GRP,LOS ALAMOS,NM 87545. UNIV CALIF LOS ALAMOS SCI LAB,BIOCHEM BIOPHYS GRP,LOS ALAMOS,NM 87545. RP FERENBAUGH, RW (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,ENVIRONM PROTECT GRP,MS K490,POB 1663,LOS ALAMOS,NM 87545, USA. NR 16 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0269-7491 J9 ENVIRON POLLUT JI Environ. Pollut. PY 1992 VL 76 IS 2 BP 141 EP 145 DI 10.1016/0269-7491(92)90101-F PG 5 WC Environmental Sciences SC Environmental Sciences & Ecology GA HJ774 UT WOS:A1992HJ77400003 PM 15091995 ER PT B AU REED, DT TASKER, IR CUNNANE, JC VANDEGRIFT, GF AF REED, DT TASKER, IR CUNNANE, JC VANDEGRIFT, GF BE VANDERGRIFT, GE REED, DT TASKER, IR TI ENVIRONMENTAL RESTORATION AND SEPARATION SCIENCE SO ENVIRONMENTAL REMEDIATION: REMOVING ORGANIC AND ION POLLUTANTS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON ENVIRONMENTAL REMEDIATION, AT THE 201ST NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 14-19, 1991 CL ATLANTA, GA SP AMER CHEM SOC, DIV IND & ENGN CHEM RP REED, DT (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 0 TC 8 Z9 8 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2479-X J9 ACS SYM SER PY 1992 VL 509 BP 1 EP 19 PG 19 WC Chemistry, Multidisciplinary; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Chemistry; Environmental Sciences & Ecology; Geology; Water Resources GA BX06E UT WOS:A1992BX06E00001 ER PT B AU CHIARIZIA, R HORWITZ, EP HODGSON, KM AF CHIARIZIA, R HORWITZ, EP HODGSON, KM BE VANDERGRIFT, GE REED, DT TASKER, IR TI REMOVAL OF INORGANIC CONTAMINANTS FROM GROUNDWATER - USE OF SUPPORTED LIQUID MEMBRANES SO ENVIRONMENTAL REMEDIATION: REMOVING ORGANIC AND ION POLLUTANTS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON ENVIRONMENTAL REMEDIATION, AT THE 201ST NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 14-19, 1991 CL ATLANTA, GA SP AMER CHEM SOC, DIV IND & ENGN CHEM RP CHIARIZIA, R (reprint author), ARGONNE NATL LAB,DIV CHEM,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 0 TC 6 Z9 6 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2479-X J9 ACS SYM SER PY 1992 VL 509 BP 22 EP 33 PG 12 WC Chemistry, Multidisciplinary; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Chemistry; Environmental Sciences & Ecology; Geology; Water Resources GA BX06E UT WOS:A1992BX06E00002 ER PT B AU HUTTER, JC VANDEGRIFT, GF AF HUTTER, JC VANDEGRIFT, GF BE VANDERGRIFT, GE REED, DT TASKER, IR TI DECONTAMINATION OF GROUNDWATER BY USING MEMBRANE-ASSISTED SOLVENT-EXTRACTION SO ENVIRONMENTAL REMEDIATION: REMOVING ORGANIC AND ION POLLUTANTS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON ENVIRONMENTAL REMEDIATION, AT THE 201ST NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 14-19, 1991 CL ATLANTA, GA SP AMER CHEM SOC, DIV IND & ENGN CHEM RP HUTTER, JC (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,SEPARAT SCI & TECHNOL SECT,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 0 TC 4 Z9 4 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2479-X J9 ACS SYM SER PY 1992 VL 509 BP 47 EP 60 PG 14 WC Chemistry, Multidisciplinary; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Chemistry; Environmental Sciences & Ecology; Geology; Water Resources GA BX06E UT WOS:A1992BX06E00004 ER PT B AU PETERS, RW SHEM, L AF PETERS, RW SHEM, L BE VANDERGRIFT, GE REED, DT TASKER, IR TI USE OF CHELATING-AGENTS FOR REMEDIATION OF HEAVY-METAL CONTAMINATED SOIL SO ENVIRONMENTAL REMEDIATION: REMOVING ORGANIC AND ION POLLUTANTS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON ENVIRONMENTAL REMEDIATION, AT THE 201ST NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 14-19, 1991 CL ATLANTA, GA SP AMER CHEM SOC, DIV IND & ENGN CHEM RP PETERS, RW (reprint author), ARGONNE NATL LAB,DIV ENERGY SYST,9700 S CASS,ARGONNE,IL 60439, USA. NR 0 TC 48 Z9 48 U1 4 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2479-X J9 ACS SYM SER PY 1992 VL 509 BP 70 EP 84 PG 15 WC Chemistry, Multidisciplinary; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Chemistry; Environmental Sciences & Ecology; Geology; Water Resources GA BX06E UT WOS:A1992BX06E00006 ER PT B AU PETERS, RW MONTEMAGNO, CD SHEM, L LEWIS, BAG AF PETERS, RW MONTEMAGNO, CD SHEM, L LEWIS, BAG BE VANDERGRIFT, GE REED, DT TASKER, IR TI SURFACTANT FLOODING OF DIESEL-FUEL-CONTAMINATED SOIL SO ENVIRONMENTAL REMEDIATION: REMOVING ORGANIC AND ION POLLUTANTS SE ACS SYMPOSIUM SERIES LA English DT Review CT SYMP ON ENVIRONMENTAL REMEDIATION, AT THE 201ST NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 14-19, 1991 CL ATLANTA, GA SP AMER CHEM SOC, DIV IND & ENGN CHEM RP PETERS, RW (reprint author), ARGONNE NATL LAB,DIV ENERGY SYST,ARGONNE,IL 60439, USA. RI Lewis, Barbara-Ann/B-7027-2009 NR 0 TC 7 Z9 7 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2479-X J9 ACS SYM SER PY 1992 VL 509 BP 85 EP 98 PG 14 WC Chemistry, Multidisciplinary; Environmental Sciences; Geosciences, Multidisciplinary; Water Resources SC Chemistry; Environmental Sciences & Ecology; Geology; Water Resources GA BX06E UT WOS:A1992BX06E00007 ER PT J AU GAFFNEY, JS MARLEY, NA CUNNINGHAM, MM AF GAFFNEY, JS MARLEY, NA CUNNINGHAM, MM TI MEASUREMENT OF THE ABSORPTION CONSTANTS FOR NITRATE IN WATER BETWEEN 270-NM AND 335-NM SO ENVIRONMENTAL SCIENCE & TECHNOLOGY LA English DT Note RP GAFFNEY, JS (reprint author), ARGONNE NATL LAB,DIV ENVIRONM RES,BLDG 203,ARGONNE,IL 60439, USA. NR 8 TC 19 Z9 19 U1 0 U2 9 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0013-936X J9 ENVIRON SCI TECHNOL JI Environ. Sci. Technol. PD JAN PY 1992 VL 26 IS 1 BP 207 EP 209 DI 10.1021/es00025a027 PG 3 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA GY590 UT WOS:A1992GY59000035 ER PT J AU KRAMER, VJ NEWMAN, MC MULVEY, M ULTSCH, GR AF KRAMER, VJ NEWMAN, MC MULVEY, M ULTSCH, GR TI GLYCOLYSIS AND KREBS CYCLE METABOLITES IN MOSQUITOFISH, GAMBUSIA-HOLBROOKI, GIRARD 1859, EXPOSED TO MERCURIC-CHLORIDE - ALLOZYME GENOTYPE EFFECTS SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article DE HEAVY METAL; POECILIIDAE; ALLELE; METABOLISM; STRESS ID PHOSPHOGLUCOSE ISOMERASE ALLOZYMES; INORGANIC MERCURY; GENETIC-VARIATION; AFFINIS BAIRD; POPULATIONS; RECOVERY; CADMIUM; DEATH; TIME AB Concentrations of glycolysis and Krebs (citric acid) cycle metabolites were measured in the tail tissues of mosquitofish (Gambusia holbrooki, Girard 1859) in response to exposure to 0.86 mg/L Hg (as HgCl2) for 28 h. Substrate and product concentrations were compared between allozyme genotypes at two loci (glucosephosphate isomerase-2 and malate dehydrogenase-1) to determine whether allozyme genotypes in mosquitofish were differentially inhibited by mercury. Mercury treatment, regardless of allozyme genotype, caused decreased concentrations of glucose-6-phosphate (-27%) and lactate (-27%). Mercury treatment led to increased concentrations of malate (+33%) and oxaloacetate (+28%). Increased Krebs cycle activity could have been a response to greater energy needs associated with maintaining homeostasis under stressful conditions. There was no evidence of differential inhibition of allozymes at either locus. Fish of genotype Gpi-2(38/38) exhibited an overall increase in glycolytic activity in response to mercury treatment. C1 UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,AIKEN,SC 29801. UNIV ALABAMA,DEPT BIOL SCI,TUSCALOOSA,AL 35487. NR 23 TC 19 Z9 19 U1 1 U2 1 PU SETAC PRESS PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3370 SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PY 1992 VL 11 IS 3 BP 357 EP 364 DI 10.1897/1552-8618(1992)11[357:GAKCMI]2.0.CO;2 PG 8 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA HF759 UT WOS:A1992HF75900009 ER PT J AU BRUNS, DA WIERSMA, GB MINSHALL, GW AF BRUNS, DA WIERSMA, GB MINSHALL, GW TI EVALUATION OF COMMUNITY AND ECOSYSTEM MONITORING PARAMETERS AT A HIGH-ELEVATION, ROCKY-MOUNTAIN STUDY SITE SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article DE ECOSYSTEM MONITORING; TERRESTRIAL; AQUATIC; SUB-ALPINE ID ACID-RAIN; ACIDIFICATION; STREAM AB A multimedia systems approach was used to field test wilderness monitoring guidelines (U.S. Forest Service) at a high elevation site in western Wyoming. Five evaluation criteria having a primary emphasis on an ecosystem conceptual framework were applied to selected ecological parameters (terrestrial and aquatic) that were ranked on a relative scoring basis. The ecosystem conceptual criterion was based on the general attributes of the subalpine system, the nature of the potential environmental problem (acidic deposition), and ecological resources at risk. The other criteria were data variability, uncertainty, usability of methods, and cost-effectiveness. Data on sulfate deposition and buffering capacity of soils and surface waters relative to an elevational gradient supported the notion of greater risk to ecological resources in the subalpine environment. Within this ecosystem perspective, litter decay and taxonomic richness of lotic macroinvertebrates had the highest rating, followed by lotic functional feeding groups and lignin-to-nitrogen ratios. A biotic index for stream macroinvertebrates received the lowest rating on an ecosystem conceptual basis and also scored low on the uncertainty and cost-effectiveness criteria; however, suggestions were made for future improvement. Most parameters were similar in regard to variability and usability, except for functional groups, which exhibited greater data variability. C1 IDAHO STATE UNIV,DEPT BIOL SCI,POCATELLO,ID 83209. EG&G IDAHO INC,IDAHO NATL ENGN LAB,CTR ENVIRONM MONITORING & ASSESSMENT,IDAHO FALLS,ID 83415. NR 44 TC 6 Z9 6 U1 1 U2 1 PU SETAC PRESS PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3370 SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PY 1992 VL 11 IS 4 BP 459 EP 472 PG 14 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA HM215 UT WOS:A1992HM21500003 ER PT J AU HEAGLER, MG MULVEY, M AF HEAGLER, MG MULVEY, M TI TIME EFFECTS ON ENZYME-ACTIVITY IN THE MOSQUITOFISH, GAMBUSIA-HOLBROOKI SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Note DE FISH; GENETICS; ELECTROPHORESIS; TOXICITY ID ALLOZYME GENOTYPE; INORGANIC MERCURY; AFFINIS BAIRD; POPULATIONS; EXPOSURE; GIRARD; DEATH AB A study to examine the maximum interval between time of death and enzymatic sampling was conducted to determine the appropriate interval to procure reliable data from electrophoretic analysis of mosquitofish, Gambusia holbrooki. Dead fish were sampled at regular time intervals (0, 8, 12, 24 hours) and electrophoresed. All 26 of the enzyme systems assayed were reliably scorable 8 hours after death, with a large number remaining scorable up to 24 hours after death. RP HEAGLER, MG (reprint author), UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,DRAWER E,AIKEN,SC 29802, USA. NR 9 TC 1 Z9 1 U1 0 U2 0 PU SETAC PRESS PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3370 SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PY 1992 VL 11 IS 5 BP 605 EP 607 DI 10.1897/1552-8618(1992)11[605:TEOEAI]2.0.CO;2 PG 3 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA HR048 UT WOS:A1992HR04800003 ER PT J AU STEWART, AJ HAYNES, GJ MARTINEZ, MI AF STEWART, AJ HAYNES, GJ MARTINEZ, MI TI FATE AND BIOLOGICAL EFFECTS OF CONTAMINATED VEGETATION IN A TENNESSEE STREAM SO ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY LA English DT Article DE AMBIENT TOXICITY; CONTAMINATED AQUATIC PLANTS; BIOMONITORING; POTAMOGETON-FOLIOSUS ID PLANTS; MACROPHYTES; INDICATOR; RESPONSES; SNAILS; LAKE; LEAD AB Potamogeton foliosus (an aquatic plant) and filamentous algae from a settling basin with contaminated sediment became enriched with polychlorinated biphenyls (PCBs), Co, Cd, Cu, Hg, Ni, Mn, U, and Zn. During the growing season, large amounts of the contaminated Potamogeton foliosus and algae were exported downstream from this basin to East Fork Poplar Creek (EFPC). We used drift nets to estimate the loading rates of the plants to EFPC, analyzed samples of the plants for metals, and conducted a series of experiments with snails (Elimia clavaeformis), amphipods (Gammarus sp.), and a microcrustacean (Ceriodaphnia dubia) to evaluate the possible effects of inputs of the vegetation to EFPC biota. Little of the vegetation that entered the stream was transported intact as far as 1.4 km. During the growing season, inputs of organic carbon to this 1.4-km segment of stream due to the deposition of the plants were at least 2.4 times greater than autochthonous production. Thus the vegetation was bioenergetically important to at least a 1- to 3-km reach of EFPC. The experiments showed that all three types of animals could distinguish between contaminated (CON) and noncontaminated (NC) Potamogeton foliosus. Snails preferred the NC plants over the CON plants; these animals also had lower growth rates on CON plants than on NC plants. Amphipods preferred CON plants over NC plants in a 48-h experiment, but preferred NC plants over CON plants in a 7-d experiment. Leachates prepared from CON Potamogeton foliosus were toxic to Ceriodaphnia; those prepared from NC Potamogeton foliosus were not. Energy-subsidy and/or contaminated-food aspects of the Potamogeton inputs could help explain why pollution-sensitive invertebrates such as mayflies and stoneflies are not present in EFPC immediately downstream from the settling basin. C1 UNIV PUERTO RICO,DEPT ENVIRONM SCI,RIO PIEDRAS,PR 00923. RP STEWART, AJ (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831, USA. OI stewart, arthur/0000-0003-1968-5997 NR 38 TC 15 Z9 15 U1 1 U2 5 PU SETAC PRESS PI PENSACOLA PA 1010 NORTH 12TH AVE, PENSACOLA, FL 32501-3370 SN 0730-7268 J9 ENVIRON TOXICOL CHEM JI Environ. Toxicol. Chem. PY 1992 VL 11 IS 5 BP 653 EP 664 DI 10.1897/1552-8618(1992)11[653:FABEOC]2.0.CO;2 PG 12 WC Environmental Sciences; Toxicology SC Environmental Sciences & Ecology; Toxicology GA HR048 UT WOS:A1992HR04800009 ER PT B AU JACKSON, A HASSENZAHL, W MEDDAHI, M AF JACKSON, A HASSENZAHL, W MEDDAHI, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI IDEAS FOR FUTURE SYNCHROTRON LIGHT-SOURCES SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 82 EP 85 PG 4 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00018 ER PT B AU COLESTOCK, PL JACKSON, GP KLAMP, L AF COLESTOCK, PL JACKSON, GP KLAMP, L BE Henke, H Homeyer, H PetitJeanGenaz, C TI OBSERVATION AND ANALYSIS OF NONLINEAR PARAMETRIC COUPLING OF LONGITUDINAL MODES IN SYNCHROTRONS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 126 EP 128 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00027 ER PT B AU FISCHER, GE BRESSLER, VE COBB, JK JENSEN, DR RULAND, RE WALZ, HV WILLIAMS, SH AF FISCHER, GE BRESSLER, VE COBB, JK JENSEN, DR RULAND, RE WALZ, HV WILLIAMS, SH BE Henke, H Homeyer, H PetitJeanGenaz, C TI PRECISION FIDUCIALIZATION OF TRANSPORT COMPONENTS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 138 EP 140 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00031 ER PT B AU MARTIN, PS AF MARTIN, PS BE Henke, H Homeyer, H PetitJeanGenaz, C TI THE FERMILAB MAIN INJECTOR PROJECT SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 161 EP 163 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00038 ER PT B AU MURPHY, JB BISCARDI, R HALAMA, H HEESE, R KRAMER, S NAWROCKY, R KRISHNASWAMY, J AF MURPHY, JB BISCARDI, R HALAMA, H HEESE, R KRAMER, S NAWROCKY, R KRISHNASWAMY, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI PERFORMANCE OF THE PHASE-I SUPERCONDUCTING X-RAY-LITHOGRAPHY SOURCE (SXLS) AT BNL SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,NATL SYNCHROTRON LIGHT SOURCE,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 212 EP 214 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00053 ER PT B AU JAMESON, RA LAWRENCE, GP SCHRIBER, SO AF JAMESON, RA LAWRENCE, GP SCHRIBER, SO BE Henke, H Homeyer, H PetitJeanGenaz, C TI ACCELERATOR-DRIVEN TRANSMUTATION TECHNOLOGY FOR ENERGY-PRODUCTION AND NUCLEAR WASTE TREATMENT SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 230 EP 234 PG 5 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00056 ER PT B AU LAVINE, TL AF LAVINE, TL BE Henke, H Homeyer, H PetitJeanGenaz, C TI REVIEW OF PULSED RF POWER-GENERATION SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 302 EP 306 PG 5 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00069 ER PT B AU CLAY, ME AF CLAY, ME BE Henke, H Homeyer, H PetitJeanGenaz, C TI WHAT ARE GOOD OPERATORS AND WHY ARE THEY NEEDED SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 324 EP 326 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00073 ER PT B AU KROLL, NM FARKAS, ZD LAVINE, TL MENEGAT, A NANTISTA, C RUTH, RD WILSON, PB AF KROLL, NM FARKAS, ZD LAVINE, TL MENEGAT, A NANTISTA, C RUTH, RD WILSON, PB BE Henke, H Homeyer, H PetitJeanGenaz, C TI A HIGH-POWER SLED-II PULSE-COMPRESSION SYSTEM SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 327 EP 329 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00074 ER PT B AU WAKE, M BOSSERT, R BUTTERIS, J CARSON, J DELCHAMPS, S JAFFERY, TS KINNEY, W KOSKA, W LAMM, MJ SIMS, R STRAIT, J WINTERS, M AF WAKE, M BOSSERT, R BUTTERIS, J CARSON, J DELCHAMPS, S JAFFERY, TS KINNEY, W KOSKA, W LAMM, MJ SIMS, R STRAIT, J WINTERS, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI MAGNETIC-FIELD PROPERTIES OF SSC MODEL DIPOLE MAGNETS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 333 EP 335 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00076 ER PT B AU DECKER, FJ EMMA, P KREJCIK, P LIMBERG, T MINTY, M MOSHAMMER, H RAUBENHEIMER, T ROSS, M SEEMAN, JT SIEMANN, R SPENCE, W SPENCER, J WOODLEY, M AF DECKER, FJ EMMA, P KREJCIK, P LIMBERG, T MINTY, M MOSHAMMER, H RAUBENHEIMER, T ROSS, M SEEMAN, JT SIEMANN, R SPENCE, W SPENCER, J WOODLEY, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI MEASURED EMITTANCE VERSUS STORE TIME IN THE SLC DAMPING RING SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 342 EP 344 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00079 ER PT B AU KOEPKE, KP AF KOEPKE, KP BE Henke, H Homeyer, H PetitJeanGenaz, C TI STATUS OF THE TEVATRON LOW-BETA AND SEPARATOR PROJECTS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 397 EP 399 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00088 ER PT B AU DORFAN, J HUTTON, A ZISMAN, MS BARLETTA, WA AF DORFAN, J HUTTON, A ZISMAN, MS BARLETTA, WA BE Henke, H Homeyer, H PetitJeanGenaz, C TI PEP-II ASYMMETRIC B-FACTORY - RESEARCH-AND-DEVELOPMENT RESULTS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 459 EP 461 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00107 ER PT B AU CARR, R NUHN, HD CORBETT, J AF CARR, R NUHN, HD CORBETT, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI 1ST TEST-RESULTS FOR AN ADJUSTABLE PHASE UNDULATOR SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD SYNCHROTRON RADIAT LAB,STANFORD,CA 94309. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 489 EP 491 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00116 ER PT B AU KREJCIK, P CORBETT, J ECKLUND, S EMMAA, P FIEGUTH, T HELM, R KULIKOV, A LIMBERG, T MOSHAMMER, H ROSS, M SIEMANN, R SPENCE, W WOODLEY, M AF KREJCIK, P CORBETT, J ECKLUND, S EMMAA, P FIEGUTH, T HELM, R KULIKOV, A LIMBERG, T MOSHAMMER, H ROSS, M SIEMANN, R SPENCE, W WOODLEY, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI RECENT IMPROVEMENTS IN THE SLC POSITRON SYSTEM PERFORMANCE SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 527 EP 529 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00127 ER PT B AU RUGGIERO, AG WEI, J AF RUGGIERO, AG WEI, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI CONVERSION OF POWER AND FREQUENCY SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 587 EP 589 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00146 ER PT B AU WEI, J AF WEI, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI TRANSITION CROSSING IN THE RHIC SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,DEPT ACCELERATOR DEV,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 643 EP 645 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00163 ER PT B AU PARZEN, G AF PARZEN, G BE Henke, H Homeyer, H PetitJeanGenaz, C TI THEORY OF THE BETA-FUNCTION SHIFT DUE TO LINEAR COUPLING SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 655 EP 657 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00167 ER PT B AU PARZEN, G AF PARZEN, G BE Henke, H Homeyer, H PetitJeanGenaz, C TI THEORY OF THE TUNE SHIFT DUE TO LINEAR COUPLING SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 658 EP 660 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00168 ER PT B AU LIMBERG, T MOSHAMMER, H RAUBENHEIMER, T SPENCER, J SIEMANN, R AF LIMBERG, T MOSHAMMER, H RAUBENHEIMER, T SPENCER, J SIEMANN, R BE Henke, H Homeyer, H PetitJeanGenaz, C TI CALCULATIONS OF EMITTANCE AND DAMPING TIME EFFECTS IN THE SLC DAMPING RINGS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 682 EP 684 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00176 ER PT B AU DECKER, FJ AF DECKER, FJ BE Henke, H Homeyer, H PetitJeanGenaz, C TI TRANSVERSE WAKEFIELDS AT HIGH DISPERSION SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 759 EP 761 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00201 ER PT B AU BOZOKI, E KRAMER, SL AF BOZOKI, E KRAMER, SL BE Henke, H Homeyer, H PetitJeanGenaz, C TI ION SHAKING IN THE 200-MEV XLS-RING SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 789 EP 791 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00211 ER PT B AU WEI, J AF WEI, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI STOCHASTIC COOLING WITH A DOUBLE RF SYSTEM SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 1 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,DEPT ACCELERATOR DEV,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-114-5 PY 1992 BP 833 EP 835 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05F UT WOS:A1992BB05F00225 ER PT B AU BANE, KLF GLUCKSTERN, R HOLTKAMP, N AF BANE, KLF GLUCKSTERN, R HOLTKAMP, N BE Henke, H Homeyer, H PetitJeanGenaz, C TI THE COUPLED DIPOLE MODES OF THE NLC ACCELERATOR STRUCTURE SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 904 EP 906 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00014 ER PT B AU SONG, JJ KUSTOM, RL AF SONG, JJ KUSTOM, RL BE Henke, H Homeyer, H PetitJeanGenaz, C TI RF IMPEDANCE MEASUREMENT STATUS FOR THE 7-GEV ADVANCED PHOTON SOURCE (APS) SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 ARGONNE NATL LAB,ADV PHOTON SOURCE,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 2 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 916 EP 918 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00018 ER PT B AU SONG, JJ ZHOU, JH KUSTOM, RL AF SONG, JJ ZHOU, JH KUSTOM, RL BE Henke, H Homeyer, H PetitJeanGenaz, C TI APERTURE COUPLING MEASUREMENT IN A TEST CHAMBER FOR THE ADVANCED PHOTON SOURCE (APS) SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 ARGONNE NATL LAB,ADV PHOTON SOURCE,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 922 EP 924 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00020 ER PT B AU SCHULTZ, DC CLENDENIN, J FRISCH, J HOYT, E KLAISNER, L WOODS, M WRIGHT, D ZOLOTOREV, M AF SCHULTZ, DC CLENDENIN, J FRISCH, J HOYT, E KLAISNER, L WOODS, M WRIGHT, D ZOLOTOREV, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI THE POLARIZED ELECTRON-GUN FOR THE SLC SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1029 EP 1031 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00055 ER PT B AU LEUNG, KN BACHMAN, DA MCDONALD, DS AF LEUNG, KN BACHMAN, DA MCDONALD, DS BE Henke, H Homeyer, H PetitJeanGenaz, C TI RF DRIVEN MULTICUSP ION-SOURCE FOR PARTICLE ACCELERATOR APPLICATIONS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1038 EP 1040 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00058 ER PT B AU XU, JM AF XU, JM BE Henke, H Homeyer, H PetitJeanGenaz, C TI STUDY ON A LONGITUDINAL DAMPER SYSTEM SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1061 EP 1063 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00065 ER PT B AU KRAMER, SL AF KRAMER, SL BE Henke, H Homeyer, H PetitJeanGenaz, C TI LONGITUDINAL BUNCH PROFILE MEASUREMENTS WITH STRIPLINES SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,NATL SYNCHROTRON LIGHT SOURCE,UPTON,NY 11973. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1064 EP 1066 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00066 ER PT B AU HINDI, H HOSSEINI, W BRIGGS, D FOX, J HUTTON, A AF HINDI, H HOSSEINI, W BRIGGS, D FOX, J HUTTON, A BE Henke, H Homeyer, H PetitJeanGenaz, C TI DOWN SAMPLED SIGNAL-PROCESSING FOR A B-FACTORY BUNCH-BY-BUNCH FEEDBACK-SYSTEM SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1067 EP 1069 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00067 ER PT B AU FOX, JD CORREDOURA, P AF FOX, JD CORREDOURA, P BE Henke, H Homeyer, H PetitJeanGenaz, C TI AMPLIFICATION AND DAMPING OF SYNCHROTRON OSCILLATIONS VIA A PARAMETRIC PROCESS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1079 EP 1081 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00071 ER PT B AU BRIDGES, JF KANG, YW KUSTOM, RL PRIMDAHL, K AF BRIDGES, JF KANG, YW KUSTOM, RL PRIMDAHL, K BE Henke, H Homeyer, H PetitJeanGenaz, C TI HIGH-POWER TESTING OF THE PROTOTYPE ACCELERATING CAVITY (352 MHZ) FOR THE ADVANCED PHOTON SOURCE (APS) SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 ARGONNE NATL LAB,ADV PHOTON SOURCE,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1254 EP 1256 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00128 ER PT B AU RIMMER, R GOLDBERG, D LAMBERTSON, G VOELKER, F KO, K KROLL, N PENDLETON, R SCHWARZ, H ADAMS, F DEJONG, M AF RIMMER, R GOLDBERG, D LAMBERTSON, G VOELKER, F KO, K KROLL, N PENDLETON, R SCHWARZ, H ADAMS, F DEJONG, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI HIGHER-ORDER MODE DAMPING STUDIES ON THE PEP-II B-FACTORY RF CAVITY SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LBL,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1289 EP 1291 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00140 ER PT B AU BROWN, BC CHESTER, NS HARDING, DJ MARTIN, PS AF BROWN, BC CHESTER, NS HARDING, DJ MARTIN, PS BE Henke, H Homeyer, H PetitJeanGenaz, C TI THE DESIGN AND MANUFACTURE OF THE FERMILAB MAIN INJECTOR DIPOLE MAGNET SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1376 EP 1378 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00169 ER PT B AU FIEGUTH, T BLOOM, E BULOS, F DAVIESWHITE, W DONALD, M FAIRFIELD, K GODFREY, G HOLTZAPPLE, R HUTTON, A LOEW, G MILLER, R SUKIENNICKI, B WEN, H RONAN, M ZISMAN, M AF FIEGUTH, T BLOOM, E BULOS, F DAVIESWHITE, W DONALD, M FAIRFIELD, K GODFREY, G HOLTZAPPLE, R HUTTON, A LOEW, G MILLER, R SUKIENNICKI, B WEN, H RONAN, M ZISMAN, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI INJECTION SYSTEM FOR THE PEP II ASYMMETRIC B FACTORY AT SLAC SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1443 EP 1445 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00189 ER PT B AU MOORE, CD COLEMAN, R GODERRE, G YANG, M AF MOORE, CD COLEMAN, R GODERRE, G YANG, M BE Henke, H Homeyer, H PetitJeanGenaz, C TI TEVATRON EXTRACTION MODELING SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1498 EP 1500 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00209 ER PT B AU ZHANG, X KRAMER, SL WACHTEL, J AF ZHANG, X KRAMER, SL WACHTEL, J BE Henke, H Homeyer, H PetitJeanGenaz, C TI OPTICS OF BEAM TRANSPORT IN THE NSLS UV-FEL SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 BROOKHAVEN NATL LAB,NATIONAL SYNCHROTRON LIGHT SOURCE,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1530 EP 1532 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00219 ER PT B AU MOSHAMMER, HW SPENCER, JE AF MOSHAMMER, HW SPENCER, JE BE Henke, H Homeyer, H PetitJeanGenaz, C TI HIGH RESOLVING POWER SPECTROMETER FOR BEAM ANALYSIS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1549 EP 1551 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00226 ER PT B AU NEWTON, MA KIRBIE, HC SHAY, HD YU, SS AF NEWTON, MA KIRBIE, HC SHAY, HD YU, SS BE Henke, H Homeyer, H PetitJeanGenaz, C TI DEVELOPMENT OF ADVANCED MODULATORS FOR RECIRCULATING HEAVY-ION ACCELERATORS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1594 EP 1596 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00238 ER PT B AU BRESSLER, VE FISCHER, GE RULAND, RE WANG, T AF BRESSLER, VE FISCHER, GE RULAND, RE WANG, T BE Henke, H Homeyer, H PetitJeanGenaz, C TI HIGH-RESOLUTION FRESNEL ZONE-PLATE LASER ALIGNMENT SYSTEM SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1613 EP 1615 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00244 ER PT B AU EMMA, P AF EMMA, P BE Henke, H Homeyer, H PetitJeanGenaz, C TI BEAM BASED ALIGNMENT OF SECTOR-1 OF THE SLC LINAC SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1625 EP 1627 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00248 ER PT B AU CHAO, YC AF CHAO, YC BE Henke, H Homeyer, H PetitJeanGenaz, C TI A TECHNIQUE FOR ALIGNING SEXTUPOLE SYSTEMS USING BEAM OPTICS SO EPAC 1992 - THIRD EUROPEAN PARTICLE ACCELERATOR CONFERENCE, VOL 2 LA English DT Proceedings Paper CT 3rd European Particle Accelerator Conference CY MAR 24-28, 1992 CL TECH UNIV BERLIN, BERLIN, GERMANY SP TECH UNIV BERLIN, BESSY, HAHN MEITNER INST, INST HOCHENERGIEPHYS HO TECH UNIV BERLIN C1 STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-115-3 PY 1992 BP 1628 EP 1630 PG 3 WC Instruments & Instrumentation; Physics, Particles & Fields SC Instruments & Instrumentation; Physics GA BB05G UT WOS:A1992BB05G00249 ER PT J AU MULHOLLAND, PJ OLSEN, CR AF MULHOLLAND, PJ OLSEN, CR TI MARINE ORIGIN OF SAVANNAH RIVER ESTUARY SEDIMENTS - EVIDENCE FROM RADIOACTIVE AND STABLE ISOTOPE TRACERS SO ESTUARINE COASTAL AND SHELF SCIENCE LA English DT Article DE SAVANNAH RIVER ESTUARY; SEDIMENTS; RADIOTRACERS; STABLE ISOTOPES ID PARTICULATE ORGANIC-CARBON; SALT-MARSH ESTUARIES; HUDSON RIVER; MATTER; NITROGEN; RADIONUCLIDES; TRANSPORT; DETRITUS; GEORGIA; RATIOS RP MULHOLLAND, PJ (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,POB 2008,OAK RIDGE,TN 37831, USA. RI Mulholland, Patrick/C-3142-2012 NR 56 TC 21 Z9 21 U1 4 U2 4 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0272-7714 J9 ESTUAR COAST SHELF S JI Estuar. Coast. Shelf Sci. PD JAN PY 1992 VL 34 IS 1 BP 95 EP 107 DI 10.1016/S0272-7714(05)80129-5 PG 13 WC Marine & Freshwater Biology; Oceanography SC Marine & Freshwater Biology; Oceanography GA HC760 UT WOS:A1992HC76000007 ER PT J AU RAJAGOPAL, KR TROY, W MASSOUDI, M AF RAJAGOPAL, KR TROY, W MASSOUDI, M TI EXISTENCE OF SOLUTIONS TO THE EQUATIONS GOVERNING THE FLOW OF GRANULAR-MATERIALS SO EUROPEAN JOURNAL OF MECHANICS B-FLUIDS LA English DT Article ID CONTINUUM THEORY AB In this work, we shall investigate the existence of solutions for the flow of a granular materials down an inclined plane maintained at a constant temperature. The constitutive equation for the stress is one that has been used recently [Rajagopal & Massoudi, 1990]. The governing equations reduce to a system of coupled, non-linear ordinary differential equations with non-linear boundary conditions. We find that these equations admit non-unique solutions, one in which the volume fraction monotonically increases and the other in which it monotonically decreases from the inclined plane to the free surface. C1 US DOE,PITTSBURGH ENERGY TECHNOL CTR,PITTSBURGH,PA 15236. RP RAJAGOPAL, KR (reprint author), UNIV PITTSBURGH,PITTSBURGH,PA 15261, USA. NR 10 TC 27 Z9 27 U1 0 U2 0 PU GAUTHIER-VILLARS PI PARIS PA S P E S-JOURNAL DEPT, 120 BD ST GERMAIN, F-75006 PARIS, FRANCE SN 0997-7546 J9 EUR J MECH B-FLUID JI Eur. J. Mech. B-Fluids PY 1992 VL 11 IS 3 BP 265 EP 276 PG 12 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA JA703 UT WOS:A1992JA70300002 ER PT J AU COTTON, FA FALVELLO, LR MURILLO, CA SCHULTZ, AJ AF COTTON, FA FALVELLO, LR MURILLO, CA SCHULTZ, AJ TI THE NEUTRON CRYSTAL-STRUCTURE OF THE SACCHARINATE COMPLEX [CU(C7H4NO3S)2(H2O)4].2H2O SO EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY LA English DT Article ID .2H2O; HEXAHYDRATE AB The compound [Cu(C7H4NO3S)2(H2O)4].2H2O has been prepared as large single crystals and characterized by neutron diffraction at 15 K. It crystallizes in the monoclinic space group P2(1)/c with a = 8.208(2) angstrom, b = 16.146(4) angstrom, c = 7.161(2) angstrom, beta = 101.19(3)-degrees and V = 930.9(4) angstrom. The compound has a Jahn-Teller distortion with copper-to-water distances different by almost 0.5 angstrom. An extensive network of hydrogen bonds is present with all hydrogen atoms involved. However, the a-axis direction is free of hydrogen bonds. A description is provided. C1 TEXAS A&M UNIV SYST,MOLEC STRUCT & BONDING LAB,COLLEGE STN,TX 77843. UNIV COSTA RICA,ESCUELA QUIM,SAN JOSE,COSTA RICA. ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. RP COTTON, FA (reprint author), TEXAS A&M UNIV SYST,DEPT CHEM,COLLEGE STN,TX 77843, USA. NR 14 TC 16 Z9 16 U1 1 U2 1 PU GAUTHIER-VILLARS PI PARIS PA S P E S-JOURNAL DEPT, 120 BD ST GERMAIN, F-75006 PARIS, FRANCE SN 0992-4361 J9 EUR J SOL STATE INOR JI Eur. J. Solid State Inorg. Chem. PY 1992 VL 29 IS 2 BP 311 EP 320 PG 10 WC Chemistry, Inorganic & Nuclear; Chemistry, Physical SC Chemistry GA HP836 UT WOS:A1992HP83600013 ER PT J AU CASTEEL, W HORWITZ, T AF CASTEEL, W HORWITZ, T TI THE PREPARATION OF KMF6 AND K2MF6 2ND AND 3RD TRANSITION SERIES SALTS FROM THE HEXAFLUORIDES SO EUROPEAN JOURNAL OF SOLID STATE AND INORGANIC CHEMISTRY LA English DT Article AB KMoF6, KReF6, KOsF6, and KIrF6 have been prepared in high purity by reduction of the corresponding hexafluorides with KBr in anhydrous hydrogen fluoride(AHF). Further reduction with one equivalent of KI in AHF has afforded pure K2MoF6, K2ReF6, K2OsF6 and K2IrF6. Reduction of KRuF6 with KBr has produced pure K2RuF6. KReF6 has now been shown to crystallize in the rhombohedral KOsF6 type cell, with a(o) = 5.021(3) angstrom, alpha = 97.16(4)-degrees, V = 122.7(3) angstrom3. C1 UNIV CALIF,DEPT CHEM,BERKELEY,CA 94729. RP CASTEEL, W (reprint author), LAWRENCE BERKELEY LAB,DIV MAT SCI & CHEM,BERKELEY,CA 94729, USA. NR 11 TC 9 Z9 9 U1 0 U2 1 PU GAUTHIER-VILLARS PI PARIS PA S P E S-JOURNAL DEPT, 120 BD ST GERMAIN, F-75006 PARIS, FRANCE SN 0992-4361 J9 EUR J SOL STATE INOR JI Eur. J. Solid State Inorg. Chem. PY 1992 VL 29 IS 4-5 BP 649 EP 657 PG 9 WC Chemistry, Inorganic & Nuclear; Chemistry, Physical SC Chemistry GA JJ792 UT WOS:A1992JJ79200004 ER PT J AU FORD, JR TERZAGHIHOWE, M AF FORD, JR TERZAGHIHOWE, M TI BASAL CELLS ARE THE PROGENITORS OF PRIMARY TRACHEAL EPITHELIAL-CELL CULTURES SO EXPERIMENTAL CELL RESEARCH LA English DT Article ID SERUM-FREE MEDIUM; CLONAL PROLIFERATION; LECTIN-BINDING; GROWTH-FACTORS; RAT; DIFFERENTIATION; KERATINOCYTES; HORMONES; HAMSTER; MOUSE C1 OAK RIDGE NATL LAB,DIV BIOL,POB 2009,OAK RIDGE,TN 37831. UNIV TENNESSEE,OAK RIDGE GRAD SCH BIOMED SCI,OAK RIDGE,TN 37830. NR 21 TC 51 Z9 51 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0014-4827 J9 EXP CELL RES JI Exp. Cell Res. PD JAN PY 1992 VL 198 IS 1 BP 69 EP 77 DI 10.1016/0014-4827(92)90150-7 PG 9 WC Oncology; Cell Biology SC Oncology; Cell Biology GA GU986 UT WOS:A1992GU98600010 PM 1727059 ER PT J AU WEN, Q SMITH, JB SMITH, DL EDMONDS, CG AF WEN, Q SMITH, JB SMITH, DL EDMONDS, CG TI MASS-SPECTROMETRIC ANALYSIS OF THE STRUCTURE OF GAMMA-II BOVINE LENS CRYSTALLIN SO EXPERIMENTAL EYE RESEARCH LA English DT Article DE BOVINE LENS PROTEINS; MASS SPECTROMETRY; GAMMA-II-CRYSTALLINS ID CAPILLARY ZONE ELECTROPHORESIS; AMINO-ACID SEQUENCE; ELECTROSPRAY IONIZATION; CALF LENS; DISULFIDE BONDS; DNA-SEQUENCES; EYE LENS; PROTEIN; CATARACTS C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. RP WEN, Q (reprint author), PURDUE UNIV, DEPT MED CHEM & PHARMACOGNOSY, W LAFAYETTE, IN 47907 USA. NR 31 TC 1 Z9 1 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0014-4835 J9 EXP EYE RES JI Exp. Eye Res. PD JAN PY 1992 VL 54 IS 1 BP 23 EP 32 PG 10 WC Ophthalmology SC Ophthalmology GA HD241 UT WOS:A1992HD24100004 ER PT J AU WAMBSGANSS, MW JENDRZEJCZYK, JA FRANCE, DM OBOT, NT AF WAMBSGANSS, MW JENDRZEJCZYK, JA FRANCE, DM OBOT, NT TI FRICTIONAL PRESSURE-GRADIENTS IN 2-PHASE FLOW IN A SMALL HORIZONTAL RECTANGULAR CHANNEL SO EXPERIMENTAL THERMAL AND FLUID SCIENCE LA English DT Article DE 2-PHASE FLOW; FRICTIONAL PRESSURE DROP; RECTANGULAR CHANNEL; COMPACT PLATE-FIN HEAT EXCHANGER AB Frictional pressure gradients were measured in a two-phase flow of an air-water mixture in a rectangular channel with a cross section of 19.05 x 3.18 mm, for application to plate-fin compact heat exchangers of the plain fin type. The measurements were conducted with the channel in two horizontal orientations. Adiabatic flows of air-water mixtures near atmospheric pressure were used at mass qualities of 2.5 x 10(-5) to 1.0 and total mass fluxes of 50-2000 kg/(m2 . s). Pressure gradients were measured with respect to two-phase flow patterns. Unique conditions were found at the transition from bubble or plug flow to slug flow. The data were compared to predictions of two widely used correlation equations. These equations did not adequately correlate the data, and a modified equation was developed for qualities larger than those occurring at the transition to slug flow. The modified two-phase flow pressure gradient correlation covers the parameters of interest for compact heat exchanger application of mass flux from 50 to 350 kg/(m2 . s) and mass qualities greater than 0.05 (Martinelli parameter less than unity). An existing correlation was found to have good accuracy at mass fluxes above 400 kg/(m2 . s). RP WAMBSGANSS, MW (reprint author), ARGONNE NATL LAB,DIV MAT & COMPONENTS TECHNOL,BLDG 335,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 0 TC 52 Z9 55 U1 0 U2 6 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0894-1777 J9 EXP THERM FLUID SCI JI Exp. Therm. Fluid Sci. PD JAN PY 1992 VL 5 IS 1 BP 40 EP 56 DI 10.1016/0894-1777(92)90055-A PG 17 WC Thermodynamics; Engineering, Mechanical; Physics, Fluids & Plasmas SC Thermodynamics; Engineering; Physics GA HB721 UT WOS:A1992HB72100006 ER PT J AU DUFFY, MK MACAL, CM PEERENBOOM, JP NEVINS, MR WHITFIELD, RG AF DUFFY, MK MACAL, CM PEERENBOOM, JP NEVINS, MR WHITFIELD, RG TI EVALUATION OF KNOWLEDGE-BASED SYSTEM-DEVELOPMENT TOOLS SO EXPERT SYSTEMS WITH APPLICATIONS LA English DT Software Review RP DUFFY, MK (reprint author), ARGONNE NATL LAB,ARGONNE,IL 60439, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0957-4174 J9 EXPERT SYST APPL JI Expert Syst. Appl. PY 1992 VL 4 IS 2 BP 268 EP 269 PG 2 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Operations Research & Management Science SC Computer Science; Engineering; Operations Research & Management Science GA HG384 UT WOS:A1992HG38400018 ER PT J AU BLANK, ML SMITH, ZL SNYDER, F AF BLANK, ML SMITH, ZL SNYDER, F TI FACTORS INFLUENCING THE TRAFFICKING OF [H-3] ARACHIDONATE AMONG LIPID CLASSES AND PHOSPHOLIPID SUBCLASSES SO FASEB JOURNAL LA English DT Meeting Abstract C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A365 EP A365 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002089 ER PT J AU BLECHNER, SL OLAH, GA STRYNADKA, N WANG, CLA STUHRMANN, HB TREWHELLA, J AF BLECHNER, SL OLAH, GA STRYNADKA, N WANG, CLA STUHRMANN, HB TREWHELLA, J TI SMALL-ANGLE X-RAY SOLUTION SCATTERING STUDIES OF TNC DIMERS AND MONOMERS, THEIR INTERACTIONS WITH PEPTIDES AND WITH TNI SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,DIV LIFE SCI,LOS ALAMOS,NM 87545. BOSTON BIOMED RES INST,BOSTON,MA 02114. UNIV ALBERTA,DEPT BIOCHEM,EDMONTON T6G 2E1,ALBERTA,CANADA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A470 EP A470 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002695 ER PT J AU BRANDES, HM STRINGER, CD HARTMAN, FC AF BRANDES, HM STRINGER, CD HARTMAN, FC TI CROSS-LINKING OF THE REGULATORY SULFHYDRYLS OF PHOSPHORIBULOKINASE (PRK) SO FASEB JOURNAL LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV BIOL,PROT ENGN PROGRAM,OAK RIDGE,TN 37831. NR 2 TC 0 Z9 0 U1 0 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A59 EP A59 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000333 ER PT J AU CHEN, J GEORGE, SJ CHRISTIANSEN, J VANELP, J WANG, X CRAMER, SP TITTSWORTH, R HALES, B AF CHEN, J GEORGE, SJ CHRISTIANSEN, J VANELP, J WANG, X CRAMER, SP TITTSWORTH, R HALES, B TI K-EDGE AND L-EDGE X-RAY ABSORPTION STUDIES OF NITROGENASE SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV CALIF DAVIS,DAVIS,CA 95616. LOUISIANA STATE UNIV,BATON ROUGE,LA 70803. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A314 EP A314 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001797 ER PT J AU ESPE, MP BOWLBY, NR SITHOLE, I GARDNER, MT BABCOCK, GT MCINTOSH, L AF ESPE, MP BOWLBY, NR SITHOLE, I GARDNER, MT BABCOCK, GT MCINTOSH, L TI STUDY OF THE LOCAL ENVIRONMENT NEAR YD+ IN PSII BY ENDOR SO FASEB JOURNAL LA English DT Meeting Abstract C1 MICHIGAN STATE UNIV,DEPT CHEM,E LANSING,MI 48824. MICHIGAN STATE UNIV,US DOE,PLANT RES LAB,E LANSING,MI 48824. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A102 EP A102 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000587 ER PT J AU FEE, JA SURERUS, KK OERTLING, WA EINARSDOTTIR, O DYER, RB WOODRUFF, WH FAN, C GURBIEL, RJ HOFFMAN, BM ANTHOLINE, WE AF FEE, JA SURERUS, KK OERTLING, WA EINARSDOTTIR, O DYER, RB WOODRUFF, WH FAN, C GURBIEL, RJ HOFFMAN, BM ANTHOLINE, WE TI NOVEL REACTION OF CYANIDE WITH CYTOCHROME-BA3 FROM THERMUS-THERMOPHILUS - SPECTROSCOPIC CHARACTERIZATION OF THE FE(II)A3.CN=CU(II)B.CN COMPLEX INDICATES 4 N-14 ATOMS ARE COORDINATED TO CUB SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. MED COLL WISCONSIN,MILWAUKEE,WI 53226. NR 0 TC 0 Z9 0 U1 1 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A194 EP A194 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001110 ER PT J AU GARCIA, AE FICHANT, G QUENTIN, Y GUPTA, G AF GARCIA, AE FICHANT, G QUENTIN, Y GUPTA, G TI CLASSIFICATION OF MULTIPLE ENERGY MINIMA CONFORMATIONS OF DNA OLIGOMERS AND PROTEINS SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,THEORET BIOL GRP,LOS ALAMOS,NM 87545. UNIV CALIF LOS ALAMOS SCI LAB,BIOPHYS GRP,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 1 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A144 EP A144 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000826 ER PT J AU GETZOFF, ED BOISSINOT, M LEPOCK, JR CABELLI, DE TAINER, JA HALLEWELL, RA AF GETZOFF, ED BOISSINOT, M LEPOCK, JR CABELLI, DE TAINER, JA HALLEWELL, RA TI BETA-STRAND PERMUTATIONS AND BETA-HAIRPIN REPLACEMENTS IN THE GREEK KEY BETA-BARREL OF SUPEROXIDE-DISMUTASE SO FASEB JOURNAL LA English DT Meeting Abstract C1 SCRIPPS RES INST, LA JOLLA, CA 92037 USA. UNIV WATERLOO, WATERLOO N2L 3G1, ONTARIO, CANADA. BROOKHAVEN NATL LAB, UPTON, NY 11973 USA. CHIRON CORP, EMERYVILLE, CA 94608 USA. NR 1 TC 0 Z9 0 U1 0 U2 3 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A141 EP A141 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000810 ER PT J AU GONG, MF WALL, J BATLIWALA, HS MAKOWSKI, L AF GONG, MF WALL, J BATLIWALA, HS MAKOWSKI, L TI STRUCTURAL STUDIES OF PAP ADHESION PILI FROM ESCHERICHIA-COLI SO FASEB JOURNAL LA English DT Meeting Abstract C1 BOSTON UNIV,DEPT PHYS,BOSTON,MA 02215. BROOKHAVEN NATL LAB,DEPT BIOL,UPTON,NY 11973. NR 0 TC 4 Z9 4 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A471 EP A471 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002704 ER PT J AU GREENFIELD, NJ BIAMONTI, C CAMPION, SR ENGLER, DA NYOGI, SK MONTELIONE, GT AF GREENFIELD, NJ BIAMONTI, C CAMPION, SR ENGLER, DA NYOGI, SK MONTELIONE, GT TI STRUCTURAL-ANALYSIS OF SINGLE-SITE MUTANTS IN HUMAN EPIDERMAL GROWTH-FACTOR BY NMR SO FASEB JOURNAL LA English DT Meeting Abstract C1 RUTGERS STATE UNIV,CTR ADV BIOTECHNOL & MED,PISCATAWAY,NJ 08854. RUTGERS STATE UNIV,DEPT CHEM,PISCATAWAY,NJ 08854. OAK RIDGE NATL LAB,PROT ENGN & MOLEC MUTAGENESIS PROGRAM,OAK RIDGE,TN 37831. NR 2 TC 0 Z9 0 U1 1 U2 2 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A269 EP A269 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001548 ER PT J AU HUD, NV CORZETT, M ALLEN, M MILANOVICH, FP BALHORN, R AF HUD, NV CORZETT, M ALLEN, M MILANOVICH, FP BALHORN, R TI THE ORGANIZATION OF DNA IN SPERM CELLS BY PROTAMINE SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A68 EP A68 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000388 ER PT J AU KEIGHTLEY, JA MATHER, MW SPRINGER, P FEE, JA BUSE, G AF KEIGHTLEY, JA MATHER, MW SPRINGER, P FEE, JA BUSE, G TI MOLECULAR GENETIC-STUDIES OF CYTOCHROME-BA3 FROM THERMUS-THERMOPHILUS (TT) - EVIDENCE FOR A MULTISUBUNIT STRUCTURE AND HOMOLOGY TO CYTOCHROME-CAA3 SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,BIOCHEM SECT,ISOTOPE & STRUCT CHEM GRP,LOS ALAMOS,NM 87545. RHEIN WESTFAL TH AACHEN,INST BIOCHEM,W-5100 AACHEN,GERMANY. NR 2 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A194 EP A194 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001109 ER PT J AU LEE, TC FITZGERALD, V CHATTERJEE, R MALONE, B SNYDER, F AF LEE, TC FITZGERALD, V CHATTERJEE, R MALONE, B SNYDER, F TI INDUCTION OF PLATELET-ACTIVATING-FACTOR ACETYLHYDROLASE BY CELLULAR-DIFFERENTIATION IN HL-60 CELLS SO FASEB JOURNAL LA English DT Meeting Abstract C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37830. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A46 EP A46 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000258 ER PT J AU LEMON, DD EINARSDOTTIR, O DYER, RB ATHERTON, SJ HUBIG, SM WOODRUFF, WH AF LEMON, DD EINARSDOTTIR, O DYER, RB ATHERTON, SJ HUBIG, SM WOODRUFF, WH TI COMPARATIVE-STUDIES OF OXIDASE DYNAMICS SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,INC4,LOS ALAMOS,NM 87544. UNIV CALIF LOS ALAMOS SCI LAB,CLS4,LOS ALAMOS,NM 87544. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A202 EP A202 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001154 ER PT J AU MAJUMDER, SA COCHRAN, AG HOBBS, JD ONDRIAS, MR SCHULTZ, PG SHELNUTT, JA AF MAJUMDER, SA COCHRAN, AG HOBBS, JD ONDRIAS, MR SCHULTZ, PG SHELNUTT, JA TI DUAL-CHANNEL RAMAN INVESTIGATION OF PORPHYRIN BINDING TO ANTI-PORPHYRIN ANTIBODY SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. SANDIA NATL LABS,DIV FUEL SCI,ALBUQUERQUE,NM 87185. UNIV CALIF DAVIS,DEPT CHEM,DAVIS,CA 95616. RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A206 EP A206 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001182 ER PT J AU MARSCH, GA JANKOWIAK, R SMALL, GJ AF MARSCH, GA JANKOWIAK, R SMALL, GJ TI THE CONFORMATION OF ANTI-(+)- AND ANTI-(-)-BENZO[A]PYRENE DIOL EPOXIDE (BPDE) COVALENT COMPLEXES WITH OLIGODEOXYNUCLEOTIDES AT SITES OF FACILE MUTAGENESIS SO FASEB JOURNAL LA English DT Meeting Abstract C1 US DOE,AMES LAB,AMES,IA 50010. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A363 EP A363 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002078 ER PT J AU NORRIS, JR TANG, J CHAN, CK DIMAGNO, TJ WANG, Z FLEMING, GR AF NORRIS, JR TANG, J CHAN, CK DIMAGNO, TJ WANG, Z FLEMING, GR TI COHERENCE IN PHOTOSYNTHESIS - FROM EXPERIMENT TO THEORY SO FASEB JOURNAL LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. UNIV CHICAGO,DEPT CHEM,CHICAGO,IL 60637. RI Tang, Jau/D-8382-2012 OI Tang, Jau/0000-0003-2078-1513 NR 1 TC 0 Z9 0 U1 0 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A277 EP A277 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001587 ER PT J AU SEIBERT, M TOON, S WASIELEWSKI, M ONIEL, M GOVINDJEE AF SEIBERT, M TOON, S WASIELEWSKI, M ONIEL, M GOVINDJEE TI PRIMARY CHARGE SEPARATION EVENTS IN ISOLATED PSII REACTION CENTERS SO FASEB JOURNAL LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. UNIV ILLINOIS,URBANA,IL 61801. NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401. NR 2 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A101 EP A101 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000586 ER PT J AU SHELNUTT, JA SPARKS, LD CHAMBERLAIN, JR HSU, P ONDRIAS, MR SWANSON, B DEMONTELLANO, PO AF SHELNUTT, JA SPARKS, LD CHAMBERLAIN, JR HSU, P ONDRIAS, MR SWANSON, B DEMONTELLANO, PO TI RAMAN-SPECTROSCOPIC CHARACTERIZATION OF ISOMERS OF METAL N-PHENYL PROTOPORPHYRIN IX DIMETHYLESTERS SO FASEB JOURNAL LA English DT Meeting Abstract C1 SANDIA NATL LABS,DIV FUEL SCI 6211,ALBUQUERQUE,NM 87185. UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. UNIV CALIF SAN FRANCISCO,DEPT PHARMACEUT CHEM,SAN FRANCISCO,CA 94143. RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A206 EP A206 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001179 ER PT J AU SONG, L AF SONG, L TI OBSERVATION OF DNA-MOLECULES UNDERGOING CAPILLARY ELECTROPHORESIS SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV CELL & MOLEC BIOL,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A361 EP A361 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002068 ER PT J AU SPARKS, LD PARK, MS CHAMBERLAIN, JR ONDRIAS, MR SHELNUTT, JA MEDFORTH, CJ SENGE, M SMITH, KM AF SPARKS, LD PARK, MS CHAMBERLAIN, JR ONDRIAS, MR SHELNUTT, JA MEDFORTH, CJ SENGE, M SMITH, KM TI METAL EFFECTS ON THE STRUCTURE OF NONPLANAR PORPHYRINS SO FASEB JOURNAL LA English DT Meeting Abstract C1 SANDIA NATL LABS,DIV FUEL SCI 6211,ALBUQUERQUE,NM 87185. UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. UNIV CALIF DAVIS,DEPT CHEM,DAVIS,CA 95616. RI Shelnutt, John/A-9987-2009; Senge, Mathias/F-1504-2011; Smith, Kevin/G-1453-2011 OI Shelnutt, John/0000-0001-7368-582X; Senge, Mathias/0000-0002-7467-1654; Smith, Kevin/0000-0002-6736-4779 NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A206 EP A206 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001181 ER PT J AU STAFFELBACH, H BURKS, C KOLLER, T AF STAFFELBACH, H BURKS, C KOLLER, T TI DNA-SEQUENCE ANALYSIS OF POSITIONED NUCLEOSOME CORES SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,THEORET BIOL & BIOPHYS GRP,LOS ALAMOS,NM 87545. SWISS FED INST TECHNOL,INST CELL BIOL,CH-8093 ZURICH,SWITZERLAND. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A67 EP A67 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44000383 ER PT J AU STEVENS, FJ MYATT, EA SOLOMON, A SCHIFFER, M AF STEVENS, FJ MYATT, EA SOLOMON, A SCHIFFER, M TI AMYLOIDOSIS AL - MOLECULAR-MODEL FOR A BIOPHYSICAL DISEASE SO FASEB JOURNAL LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV BIOL & MED RES,ARGONNE,IL 60439. UNIV TENNESSEE,MED CTR,GRAD SCH MED,DEPT MED,HUMAN IMMUNOL & CANC PROGRAM,KNOXVILLE,TN 37920. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A211 EP A211 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001211 ER PT J AU TUNG, CS AF TUNG, CS TI AN ALGORITHM TO GENERATE DNA DOUBLE HELICAL MOLECULE THAT FOLLOWS ANY SMOOTH SPATIAL CURVE IN 3-D SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87544. NR 3 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A221 EP A221 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001268 ER PT J AU WAGENKNECHT, T GRASSUCCI, R BERKOWITZ, J CARBONE, K FURUYA, F HAINFELD, J AF WAGENKNECHT, T GRASSUCCI, R BERKOWITZ, J CARBONE, K FURUYA, F HAINFELD, J TI ELECTRON-MICROSCOPY OF UNSTAINED GOLD-CLUSTER LABELED PYRUVATE AND 2-OXOGLUTARATE DEHYDROGENASE COMPLEXES (PDC AND OGDC) SO FASEB JOURNAL LA English DT Meeting Abstract C1 NEW YORK STATE DEPT HLTH,WADSWORTH CTR LABS & RES,ALBANY,NY 12201. BROOKHAVEN NATL LAB,DEPT BIOL,UPTON,NY 11973. NR 0 TC 1 Z9 1 U1 1 U2 1 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A469 EP A469 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44002694 ER PT J AU WANG, AC KENNEDY, MA REID, BR DROBNY, GP AF WANG, AC KENNEDY, MA REID, BR DROBNY, GP TI A SOLID-STATE H-2 NMR-STUDY OF PURINE MOTION IN A 12 BASE-PAIR OLIGORIBONUCLEOTIDE SO FASEB JOURNAL LA English DT Meeting Abstract C1 UNIV WASHINGTON, SEATTLE, WA 98195 USA. PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FEDERATION AMER SOC EXP BIOL PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 SN 0892-6638 J9 FASEB J JI Faseb J. PD JAN 1 PY 1992 VL 6 IS 1 BP A269 EP A269 PG 1 WC Biochemistry & Molecular Biology; Biology; Cell Biology SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other Topics; Cell Biology GA GY440 UT WOS:A1992GY44001546 ER PT S AU WARREN, WL TUTTLE, BA SCHWARTZ, RW HAMMETTER, WF GOODNOW, DC EVANS, JT BULLINGTON, JA AF WARREN, WL TUTTLE, BA SCHWARTZ, RW HAMMETTER, WF GOODNOW, DC EVANS, JT BULLINGTON, JA BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI MICROSTRUCTURAL EVOLUTION OF PB(ZR,TI)O3 CERAMICS USING ELECTRON-PARAMAGNETIC-RESONANCE SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,CTR MAT & PROC SCI,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 3 EP 8 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00001 ER PT S AU VOIGT, JA TUTTLE, BA HEADLEY, TJ EATOUGH, MO LAMPPA, DL GOODNOW, D AF VOIGT, JA TUTTLE, BA HEADLEY, TJ EATOUGH, MO LAMPPA, DL GOODNOW, D BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI ORIENTED LEAD-ZIRCONATE-TITANATE THIN-FILMS - CHARACTERIZATION OF FILM CRYSTALLIZATION SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 1 U2 2 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 15 EP 21 PG 7 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00003 ER PT S AU SCHWARTZ, RW DIMOS, D LOCKWOOD, SJ TORRES, VM AF SCHWARTZ, RW DIMOS, D LOCKWOOD, SJ TORRES, VM BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI ELECTRICAL-PROPERTIES OF SOL-GEL PZT THIN-FILMS FOR DECOUPLING CAPACITOR APPLICATIONS SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,CTR MAT & PROC SCI,ALBUQUERQUE,NM 87185. NR 0 TC 1 Z9 1 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 59 EP 64 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00009 ER PT S AU TUTTLE, BA MCINTYRE, DC SEAGER, CH GARINO, TJ WARREN, WL EVANS, JT WALDMAN, RW AF TUTTLE, BA MCINTYRE, DC SEAGER, CH GARINO, TJ WARREN, WL EVANS, JT WALDMAN, RW BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI MATERIALS CHARACTERIZATION OF NONDESTRUCTIVE READOUT NONVOLATILE MEMORY DEVICES SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 71 EP 78 PG 8 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00011 ER PT S AU DIMOS, D WARREN, WL TUTTLE, BA AF DIMOS, D WARREN, WL TUTTLE, BA BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI PHOTOINDUCED AND ELECTROOPTIC PROPERTIES OF (PB,LA)(ZR,TI)O3 FILMS SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 87 EP 98 PG 12 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00013 ER PT S AU LOCKWOOD, SJ SCHWARTZ, RW TUTTLE, BA THOMAS, EV AF LOCKWOOD, SJ SCHWARTZ, RW TUTTLE, BA THOMAS, EV BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI SOLUTION CHEMISTRY OPTIMIZATION OF SOL-GEL PROCESSED PZT THIN-FILMS SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 1 Z9 1 U1 0 U2 1 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 275 EP 280 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00038 ER PT S AU WARREN, WL TUTTLE, BA SUN, BN HUANG, Y PAYNE, DA AF WARREN, WL TUTTLE, BA SUN, BN HUANG, Y PAYNE, DA BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI OPTICALLY INDUCED PARAMAGNETIC DEFECTS IN PBTIO3 SINGLE-CRYSTALS SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 SANDIA NATL LABS,DEPT GLASS & ELECTR CERAM,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 391 EP 396 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00055 ER PT S AU FOSTER, CM CHAN, SK CHANG, HLM CHIARELLO, RP LAM, DJ AF FOSTER, CM CHAN, SK CHANG, HLM CHIARELLO, RP LAM, DJ BE Myers, ER Tuttle, BA Desu, SB Larsen, PK TI PRISM-FILM COUPLING IN ANISOTROPIC PLANAR WAVE-GUIDES OF EPITAXIAL (101) RUTILE THIN-FILMS SO FERROELECTRIC THIN FILMS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Ferroelectric Thin Films III, at the 1991 Fall Meeting of the Materials-Research-Society CY APR 13-16, 1993 CL SAN FRANCISCO, CA SP MAT RES SOC, RAYTHEON CO, USN, OFF NAVAL RES, ADV RES PROJECTS AGCY, NATL SEMICONDUCTOR, RADIANT TECHNOL, INC, BELLCORE, SANDIA NATL LABS C1 ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-206-5 J9 MATER RES SOC SYMP P PY 1992 VL 310 BP 403 EP 408 PG 6 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA BZ55G UT WOS:A1992BZ55G00057 ER PT J AU GRENIER, P JANDL, S BLOUIN, M BOATNER, LA AF GRENIER, P JANDL, S BLOUIN, M BOATNER, LA TI STUDY OF FERROELECTRIC MICRODOMAINS DUE TO OXYGEN VACANCIES IN KTAO3 SO FERROELECTRICS LA English DT Article ID RAMAN-SCATTERING; MICROREGIONS; FLUORESCENCE; PHASE AB The red luminescence observed in both reduced ''as grown'' KTaO3 and KTa0.94Nb0.06O3 single crystal samples has been studied as a function of temperature and applied magnetic field. The results indicate that the luminescent center is a Ta3+ ion located in a ferroelectric microdomain in the vicinity of oxygen vacancies. C1 OAK RIDGE NATL LAB, DIV SOLID STATE, OAK RIDGE, TN 37831 USA. RP UNIV SHERBROOKE, DEPT PHYS, SHERBROOKE J1K 2R1, QUEBEC, CANADA. NR 11 TC 13 Z9 13 U1 0 U2 3 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0015-0193 EI 1563-5112 J9 FERROELECTRICS JI Ferroelectrics PY 1992 VL 137 IS 1-4 BP 105 EP 111 DI 10.1080/00150199208015942 PG 7 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA KV311 UT WOS:A1992KV31100018 ER PT J AU MAHAN, GD AF MAHAN, GD TI IONIC POLARIZATION SO FERROELECTRICS LA English DT Article; Proceedings Paper CT 2ND WILLIAMSBURG WORKSHOP ON FIRST PRINCIPLES CALCULATIONS FOR FERROELECTRICS CY FEB 02-04, 1992 CL WILLIAMSBURG, VA SP CARNEGIE INST WASHINGTON, GORDON & BREACH SCI PUBL, USN, OFF NAVAL RES DE AUTHOR; SUPPLY KEYWORDS IN RETURNED PAGES ID ELECTRO-OPTIC CONTRIBUTION; ALKALI-HALIDES; RAMAN-SCATTERING; LATTICE-DYNAMICS; INSULATORS; CRYSTALS AB We review the microscopic theory of ionic polarization in insulators. The dominant polarization comes from the ion rather than from the bond. The three largest contributions are: dipole polarizability, deformation-dipole, and indirect-ionic-interactions. We discuss the contribution of these polarizabilities to phonons, refractive indices, and piezoelectricity. We also discuss hyperpolarizability and its relation to light scattering. C1 OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831. RP MAHAN, GD (reprint author), UNIV TENNESSEE,DEPT PHYS & ASTRON,KNOXVILLE,TN 37996, USA. NR 24 TC 2 Z9 2 U1 1 U2 3 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 136 IS 1-4 BP 57 EP 64 DI 10.1080/00150199208016066 PG 8 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA KN563 UT WOS:A1992KN56300007 ER PT J AU DAI, XH LI, Z XU, XZ CHAN, SK LAM, DJ AF DAI, XH LI, Z XU, XZ CHAN, SK LAM, DJ TI DIELECTRIC FREQUENCY DISPERSION BEHAVIOR IN FLUX GROWN PBTIO3 SINGLE-CRYSTALS SO FERROELECTRICS LA English DT Article DE PBTIO3; DIELECTRIC DISPERSION; CONDUCTIVITY; DEFECTS ID LEAD TITANATE AB The dielectric behavior (dielectric constant and dielectric loss) of nux grown PbTiO3 single crystals has been examined at frequencies ranging from 10 Hz to 13 MHz. Large dielectric frequency dispersion has been found. Removing the surface layers of the as-grown crystal or heat treatment can significantly change the dispersion behavior and the dc conductivity. It is suggested that a concentration gradient of defects exists within the as-grown PbTiO3 single crystals. The migration of he ionic defects within the crystals is responsible for the observed dielectric frequency dispersion behavior. RP DAI, XH (reprint author), ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439, USA. NR 19 TC 21 Z9 21 U1 1 U2 4 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 135 IS 1-4 BP 39 EP 48 DI 10.1080/00150199208230011 PG 10 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA KK684 UT WOS:A1992KK68400011 ER PT J AU SAMARA, GA BAUER, F AF SAMARA, GA BAUER, F TI THE EFFECTS OF PRESSURE ON THE BETA MOLECULAR RELAXATION AND PHASE-TRANSITIONS OF THE FERROELECTRIC COPOLYMER P(VDF0.7TRFE0.3) SO FERROELECTRICS LA English DT Article ID POLY(VINYLIDENE FLUORIDE); DIELECTRIC-RELAXATION AB The effects of hydrostatic pressure on the dynamics and energetics of the beta molecular relaxation process and on the ferroelectric (T(c)) and melting (T(m)) transition temperatures of the ferroelectric copolymer P(VDF0.7TrFE0.3) have been investigated. Pressure causes a large slowing down of the beta relaxation as well as large increases in T(c) and T(m), but the magnitudes of the effects are different for the different transitions. These effects can be qualitatively understood in terms of pressure-induced hinderance of the moleCUlar motions and/or reorientations that occur at the various transitions. The slowing down of the beta relaxation is interpreted in terms of the Vogel-Fulcher equation and results from increases in both the energy barrier to dipolar motion and the reference temperature (T0) for the kinetic relaxation which represents the ''static'' dipolar freezing temperature for the process. In terms of both its dynamics and energetics, the beta relaxation of the copolymer is nearly indistinguishable from that in PVDF. C1 INST FRANCO ALLEMAND,ST LOUIS,FRANCE. RP SAMARA, GA (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 20 TC 38 Z9 38 U1 3 U2 5 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 135 IS 1-4 BP 385 EP 399 DI 10.1080/00150199208230040 PG 15 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA KK684 UT WOS:A1992KK68400040 ER PT J AU HUFFMAN, M GEALY, FD KAMMERDINER, L ZURCHER, P ZHU, JG ALJASSIM, M ECHER, C AF HUFFMAN, M GEALY, FD KAMMERDINER, L ZURCHER, P ZHU, JG ALJASSIM, M ECHER, C TI MICROSTRUCTURAL, COMPOSITIONAL AND ELECTRICAL CHARACTERIZATION OF FERROELECTRIC LEAD ZIRCONATE TITANATE THIN-FILMS SO FERROELECTRICS LA English DT Article; Proceedings Paper CT 2ND EUROPEAN CONF ON THE APPLICATION OF POLAR DIELECTRICS / 1ST INTERNATIONAL WORKSHOP ON INTEGRATED FERROELECTRICS CY APR 12-15, 1992 CL LONDON, ENGLAND SP DEF ADV RES PROJECTS AGCY, GORDON & BREACH SCI PUBL, DIELECT SOC, COOKSONS, GEC MARCONI MAT TECHNOL GRP AB Thin lead zirconate titanate (PZT) ferroelectric films are currently being used in a variety of applications. One of the more novel uses is in non-volatile random access memory devices. In this study, polycrystalline ferroelectric thin films were rf-sputtered on Pt-metallized Si wafers. La-doped as well as undoped PZT films were analyzed. The microstructure was examined by X-ray diffraction and TEM. The electrical characterization on was carried out on discrete PZT capacitors by using switching measurements between 20 and 150-degrees-C. Nanoprobe analysis of the composition of the films has also been performed and the difficulties of obtaining reliable analytical results are explored in detail. The data obtained from these electrical and microstructural studies were correlated and modeled in order to directly relate switching to the microstructure required for improved device performance. C1 NATL RENEWABLE ENERGY LAB,GOLDEN,CO. NATL CTR ELECTRON MICROSCOPY,BERKELEY,CA. RP HUFFMAN, M (reprint author), RAMTRON INT CORP,COLORADO SPRINGS,CO, USA. NR 6 TC 6 Z9 6 U1 1 U2 2 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 134 IS 1-4 BP 303 EP 312 DI 10.1080/00150199208015604 PG 10 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA KG158 UT WOS:A1992KG15800050 ER PT J AU MIHAILOVIC, D MCCARTY, KF GINLEY, DS AF MIHAILOVIC, D MCCARTY, KF GINLEY, DS TI ANHARMONICITY OF HIGH-FREQUENCY O VIBRATIONS IN YBA2CU3O7-DELTA, TLBA2CACU2O7-DELTA AND TL2BA2CACU2O8-DELTA DEDUCED FROM HIGH-TEMPERATURE RAMAN-SPECTRA SO FERROELECTRICS LA English DT Article DE HIGH-TC; RAMAN SCATTERING; ANHARMONICITY; JAHN-TELLER EFFECT ID HIGH-TC SUPERCONDUCTORS; OXYGEN; FERROELECTRICITY; DEPENDENCE; SCATTERING; DIFFUSION; OXIDES; MODE AB High temperature Raman spectra on single crystals of YBaCu3O7-delta, TlBa2CaCu2O7-delta and Tl2Ba2CaCu2O8-delta show significant softening and broadening of apical oxygen vibrational modes above 300 K. This behaviour appears to be a common in superconducting oxides with a pyramidal O structure surrounding planar Cu ions. Although this high-temperature behaviour is characteristic of anharmonic modes, we find that a simple double well static anharmonic potential cannot fully explain these observations. C1 SANDIA NATL LABS,LIVERMORE,CA 94551. RP MIHAILOVIC, D (reprint author), JOZEF STEFAN INST,JAMOVA 39,YU-61111 LJUBLJANA,YUGOSLAVIA. RI McCarty, Kevin/F-9368-2012 OI McCarty, Kevin/0000-0002-8601-079X NR 30 TC 2 Z9 2 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 130 IS 1-3 BP 107 EP 116 PG 10 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA JV426 UT WOS:A1992JV42600009 ER PT J AU BUSSMANNHOLDER, A BISHOP, AR AF BUSSMANNHOLDER, A BISHOP, AR TI ROLE OF ELECTRON-2-PHONON INTERACTION IN FERROELECTRICS AND OXIDE SUPERCONDUCTORS SO FERROELECTRICS LA English DT Article; Proceedings Paper CT 7TH EUROPEAN MEETING ON FERROELECTRICITY ( EMF-7 ) CY JUL 08-12, 1991 CL DIJON, FRANCE ID POLARIZABILITY MODEL AB Based on an analysis of the very specific properties of the oxygen ion 0(2-) the soft mode driven structural instabilities observed in oxides can be quantitatively described within an anharmonic-electron-phonon interaction model. Structural similarity, high dielectric constant and anharmonicity suggest that similar mechanisms are important in oxide high-temperature superconductors. A detailed investigation of the anharmonic model Hamiltonian is presented and it is shown that electron-two-phonon interactions may substantially enhance the superconducting transition temperature, T(c), modify the ratio 2DELTA0/kT(c) and the isotope effect and predict an anisotropic pairing gap DELTA0. C1 UNIV BAYREUTH,W-8580 BAYREUTH,GERMANY. LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87544. RP BUSSMANNHOLDER, A (reprint author), MAX PLANCK INST FESTKORPERFORSCH,HEISENBERGSTR 1,W-7000 STUTTGART 80,GERMANY. NR 11 TC 4 Z9 4 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 128 IS 1-4 BP 99 EP 104 DI 10.1080/00150199208015074 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA JU645 UT WOS:A1992JU64500019 ER PT J AU BUSSMANNHOLDER, A BISHOP, AR MIGLIORI, A FISK, Z AF BUSSMANNHOLDER, A BISHOP, AR MIGLIORI, A FISK, Z TI ROLE OF STRUCTURAL INSTABILITY IN HIGH-TEMPERATURE SUPERCONDUCTIVITY AND ITS EFFECT ON ISOTOPE EFFECT SO FERROELECTRICS LA English DT Article; Proceedings Paper CT 7TH EUROPEAN MEETING ON FERROELECTRICITY ( EMF-7 ) CY JUL 08-12, 1991 CL DIJON, FRANCE AB The tetragonal-orthorhombic structural phase transition of La2-xSrxCuO4 is analyzed within an anharmonic electron-phonon interaction model. x-dependence as well as temperature T-dependence of the soft mode are calculated and in quantitative agreement with experimental data. To evaluate the importance of the soft mode for the superconducting properties Eliashberg equations are solved for this specific mode. The resulting electron-phonon coupling lambda is found to be strongly x and T dependent with characteristic anomalies around the structural transition temperature T(s). The calculated x-dependent superconducting transition temperature T(c) follows closely the experimental values but underestimates T(c). This discrepancy is attributed to the neglect of higher order electron-phonon interactions. Inclusion of these terms leads to a strong decrease of the isotope effect alpha from the BCS value of 0.5 to a varied value of 0.1. C1 UNIV BAYREUTH,W-8580 BAYREUTH,GERMANY. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. RP BUSSMANNHOLDER, A (reprint author), MAX PLANCK INST FESTKORPERFORSCH,HEISENBERGSTR 1,W-7000 STUTTGART 80,GERMANY. NR 11 TC 5 Z9 5 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 128 IS 1-4 BP 105 EP 110 DI 10.1080/00150199208015075 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA JU645 UT WOS:A1992JU64500020 ER PT J AU BULOU, A HUCKETT, S GARCIA, E SWANSON, BI KWEI, GH ECKERT, J AF BULOU, A HUCKETT, S GARCIA, E SWANSON, BI KWEI, GH ECKERT, J TI STRUCTURAL PHASE-TRANSITION IN THE QUASI-ONE-DIMENSIONAL PTCL SO FERROELECTRICS LA English DT Article; Proceedings Paper CT 7TH EUROPEAN MEETING ON FERROELECTRICITY ( EMF-7 ) CY JUL 08-12, 1991 CL UNIV BURGUNDY, DIJON, FRANCE HO UNIV BURGUNDY ID LINEAR-CHAIN COMPLEXES; POLARONIC STATES; SALT ANALOGS; VALENCE; 4; TETRAPERCHLORATE; ASYMMETRY; PLATINUM; ELECTRON; DEFECTS AB We report on the pulsed neutron powder diffraction study of the high and low temperature phases of [Pt(en)2][Pt(en)2Cl2](ClO4)4 (where en=ethylenediamine), referred to as PtCl, that undergoes a structural phase transition at 19.8-degrees-C. It is shown that the high and low temperature phases are orthorhombic and monoclinic, respectively. The transition is associated with a very large shear (3.9-degrees) and the translational group of the low temperature phase is not a subgroup of the high temperature phase translational group ; this supports the first order character proposed earlier. C1 UNIV MAINE,LAB PEC,F-72017 LE MANS,FRANCE. LOS ALAMOS NATL LAB,LANSCE,LOS ALAMOS,NM 87545. RP BULOU, A (reprint author), LOS ALAMOS NATL LAB,INC-4,MS-C345,LOS ALAMOS,NM 87545, USA. NR 18 TC 0 Z9 0 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0015-0193 J9 FERROELECTRICS PY 1992 VL 125 IS 1-4 BP 45 EP 50 DI 10.1080/00150199208017042 PG 6 WC Materials Science, Multidisciplinary; Physics, Condensed Matter SC Materials Science; Physics GA JU262 UT WOS:A1992JU26200010 ER PT J AU GOLDMAN, T HENDERSON, JA THOMAS, AW AF GOLDMAN, T HENDERSON, JA THOMAS, AW TI A NEW PERSPECTIVE ON THE RHO-OMEGA CONTRIBUTION TO CHARGE-SYMMETRY VIOLATION IN THE NUCLEON-NUCLEON FORCE SO FEW-BODY SYSTEMS LA English DT Article ID PROTON ELASTIC-SCATTERING; BREAKING AB The role of rho-omega mixing as a mechanism for charge-symmetry violation in the nucleon-nucleon system is apparently well established. However, a common assumption in generating the charge-symmetry-violation potential is that the rho-omega mixing amplitude is constant (at the on-mass-shell value) even when the exchanged meson is far off-shell. We construct a simple quark model in which the mixing is generated by the u-d quark mass difference which allows us to test this assumption. It turns out to be surprisingly poor. C1 UNIV ADELAIDE,DEPT PHYS & MATH PHYS,ADELAIDE,SA 5001,AUSTRALIA. RP GOLDMAN, T (reprint author), LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. RI Thomas, Anthony/G-4194-2012 OI Thomas, Anthony/0000-0003-0026-499X NR 18 TC 79 Z9 79 U1 0 U2 0 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7963 J9 FEW-BODY SYST JI Few-Body Syst. PY 1992 VL 12 IS 2-4 BP 123 EP 132 DI 10.1007/BF01074811 PG 10 WC Physics, Multidisciplinary SC Physics GA JG011 UT WOS:A1992JG01100006 ER PT B AU VANOORT, JM AF VANOORT, JM BE Claus, RO TI THE APPLICATION OF EXTRINSIC FABRY-PEROT FIBEROPTIC STRAIN SENSORS IN ACCELERATOR DIPOLE MAGNETS SO FIBER OPTIC SENSOR-BASED SMART MATERIALS AND STRUCTURES SE SMART MATERIALS AND STRUCTURES SERIES LA English DT Proceedings Paper CT 5th Annual Smart Materials and Structures Workshop CY APR 15-16, 1992 CL VIRGINIA TECH, FIBER & ELECTRO OPT RES CTR, BLACKSBURG, VA HO VIRGINIA TECH, FIBER & ELECTRO OPT RES CTR C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 2 Z9 2 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX BN 0-7503-0248-8 J9 SMAR MAT ST PY 1992 BP 185 EP 190 PG 6 WC Computer Science, Artificial Intelligence; Materials Science, Characterization & Testing; Optics SC Computer Science; Materials Science; Optics GA BA62T UT WOS:A1992BA62T00032 ER PT J AU NOWLEN, SP AF NOWLEN, SP TI NUCLEAR-POWER-PLANTS - A UNIQUE CHALLENGE TO FIRE SAFETY SO FIRE SAFETY JOURNAL LA English DT Article AB The evaluation of fire safety in a nuclear power plant must include the consideration of the impact of a fire on the operability of plant safety equipment and systems. This issue is not typical of the life safety and property protection issues which dominate traditional fire safety concerns. This paper provides a general discussion of the issue of nuclear power plant fire safety as it currently exists in the USA. Included is a discussion of the past history of nuclear power plant fire events, the development of nuclear industry specific fire safety guidelines, the adverse experience associated with the inadvertent operation of fire suppression systems, and the anticipated direction of fire safety requirements for future reactor designs in the USA. RP NOWLEN, SP (reprint author), SANDIA NATL LABS,DIV 6419,ALBUQUERQUE,NM 87185, USA. NR 6 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0379-7112 J9 FIRE SAFETY J JI Fire Saf. J. PY 1992 VL 19 IS 1 BP 3 EP 18 DI 10.1016/0379-7112(92)90003-U PG 16 WC Engineering, Civil; Materials Science, Multidisciplinary SC Engineering; Materials Science GA HL759 UT WOS:A1992HL75900002 ER PT J AU COCHRAN, HD CUMMINGS, PT KARABORNI, S AF COCHRAN, HD CUMMINGS, PT KARABORNI, S TI SOLVATION IN SUPERCRITICAL WATER SO FLUID PHASE EQUILIBRIA LA English DT Article ID LOW-FREQUENCY; LIQUID WATER; IRON-ALLOYS; MIXTURES; SOLVENT; DILUTE; SOLUTE; DIFFRACTION; DESTRUCTION; SCATTERING AB The aim of this work is to determine the solvation structure in supercritical water compared with that in ambient water and in simple supercritical solvents. Molecular dynamics studies have been undertaken of systems that model ionic sodium and chloride, atomic argon, and molecular methanol in supercritical aqueous solutions using the simple point charge model of Berendsen for water. Because of the strong interactions between water and ions, ionic solutes are strongly attractive in supercritical water, forming large regions of increased local water density around each ion comparable to the solvent structures surrounding attractive solutes in simple supercritical fluids. Likewise, the deficit of water molecules surrounding a dissolved argon atom in supercritical aqueous solutions is comparable to that surrounding repulsive solutes in simple supercritical fluids. Methanol appears to be a weakly attractive or even repulsive solute in supercritical water. Only a small number of excess water molecules (if any) surround a methanol molecule in supercritical water, and this becomes a deficit at higher density. The number of hydrogen bonds per water molecule in supercritical water was found to be about one-third the number in ambient water. The number of hydrogen bonds per water molecule surrounding a central particle in supercritical water was only weakly affected by the identity of the central particle - atom, molecule or ion. These results should be helpful in developing a qualitative understanding of important processes which occur in supercritical water. C1 UNIV VIRGINIA, DEPT CHEM ENGN, CHARLOTTESVILLE, VA 22901 USA. RP COCHRAN, HD (reprint author), OAK RIDGE NATL LAB, POB 2008, OAK RIDGE, TN 37831 USA. RI Cummings, Peter/B-8762-2013 OI Cummings, Peter/0000-0002-9766-2216 NR 37 TC 70 Z9 70 U1 1 U2 13 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0378-3812 EI 1879-0224 J9 FLUID PHASE EQUILIBR JI Fluid Phase Equilib. PD JAN PY 1992 VL 71 IS 1-2 BP 1 EP 16 DI 10.1016/0378-3812(92)85001-O PG 16 WC Thermodynamics; Chemistry, Physical; Engineering, Chemical SC Thermodynamics; Chemistry; Engineering GA HD432 UT WOS:A1992HD43200001 ER PT B AU TRUGENBERGER, CA AF TRUGENBERGER, CA BE Black, TD Nieto, MM Pilloff, HS Scully, MO Sinclair, RM TI PHASES IN THE PHYSICS OF ANYONS SO FOUNDATIONS OF QUANTUM MECHANICS LA English DT Proceedings Paper CT WORKSHOP ON THE FOUNDATIONS OF QUANTUM MECHANICS CY MAY 27-31, 1991 CL ST JOHNS COLL, SANTA FE, NM SP USN, OFF NAVAL RES, LOS ALAMOS NATL LAB, UNIV NEW MEXICO HO ST JOHNS COLL C1 LOS ALAMOS NATL LAB, DIV THEORY T8, LOS ALAMOS, NM 87545 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE BN 981-02-0980-0 PY 1992 BP 85 EP 90 PG 6 WC Optics; Physics, Multidisciplinary SC Optics; Physics GA BW53X UT WOS:A1992BW53X00010 ER PT B AU NIETO, MM AF NIETO, MM BE Black, TD Nieto, MM Pilloff, HS Scully, MO Sinclair, RM TI PHYSICAL INTERPRETATION OF SUPERCOHERENT STATES AND THEIR ASSOCIATED GRASSMANN NUMBERS SO FOUNDATIONS OF QUANTUM MECHANICS LA English DT Proceedings Paper CT WORKSHOP ON THE FOUNDATIONS OF QUANTUM MECHANICS CY MAY 27-31, 1991 CL ST JOHNS COLL, SANTA FE, NM SP USN, OFF NAVAL RES, LOS ALAMOS NATL LAB, UNIV NEW MEXICO HO ST JOHNS COLL C1 LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE BN 981-02-0980-0 PY 1992 BP 95 EP 99 PG 5 WC Optics; Physics, Multidisciplinary SC Optics; Physics GA BW53X UT WOS:A1992BW53X00012 ER PT B AU CHAPLINE, GF AF CHAPLINE, GF BE Black, TD Nieto, MM Pilloff, HS Scully, MO Sinclair, RM TI INFORMATION-FLOW IN QUANTUM-MECHANICS - THE QUANTUM MAXWELL DEMON SO FOUNDATIONS OF QUANTUM MECHANICS LA English DT Proceedings Paper CT WORKSHOP ON THE FOUNDATIONS OF QUANTUM MECHANICS CY MAY 27-31, 1991 CL ST JOHNS COLL, SANTA FE, NM SP USN, OFF NAVAL RES, LOS ALAMOS NATL LAB, UNIV NEW MEXICO HO ST JOHNS COLL C1 LAWRENCE LIVERMORE NATL LAB, DEPT PHYS, LIVERMORE, CA 94550 USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE BN 981-02-0980-0 PY 1992 BP 255 EP 260 PG 6 WC Optics; Physics, Multidisciplinary SC Optics; Physics GA BW53X UT WOS:A1992BW53X00030 ER PT J AU MEHLHORN, RJ SWANSON, CE AF MEHLHORN, RJ SWANSON, CE TI NITROXIDE-STIMULATED H2O2 DECOMPOSITION BY PEROXIDASES AND PSEUDOPEROXIDASES SO FREE RADICAL RESEARCH COMMUNICATIONS LA English DT Article DE PEROXIDASE INHIBITOR; FERRYL HEME REDUCTION; PROTEIN FREE RADICAL SCAVENGER; SPIN TRAP DESTRUCTION; ANTIOXIDANT HEME SPECIFIC; NITRIC OXIDE OXIDATION ID TERT-BUTYL HYDROPEROXIDE; FREE-RADICAL FORMATION; RED-BLOOD-CELLS; HYDROGEN-PEROXIDE; LIPID-PEROXIDATION; HEMOGLOBIN DEGRADATION; OXIDATIVE DAMAGE; MEMBRANE; SUPEROXIDE; INVIVO AB Nitroxide free radicals interact with Hb/metHb, Mb/metMb and with peroxidases/phenols to induce a catalase-like conversion of H2O2 to O2 (catalatic activity), without being substantially consumed in the process. The mechanism of this reaction is postulated to involve a one-electron oxidation of the nitroxide to the immonium oxene, which then reacts further to release oxygen and the nitroxide. An involvement of the immonium oxene in the reaction mechanism is consistent with ferryl heme reduction by nitroxides and a detection of the reduced nitroxide when the reaction mixture is supplemented with the two-electron reductant sodium borohydride. The nitroxide-induced catalatic activity is completely inhibited when the reaction mixture is supplemented with glutathione. Nitroxides suppress free radical formation by hydroperoxide-activated heme proteins, as inferred from their inhibition of the spin-trapping of glutathionyl radicals. H2O2 decomposition and a suppression of reactive free radical formation by heme proteins appears to be an antioxidant activity of nitroxides, which is distinct from their previously reported superoxide dismutating activity and which may be a factor in their protective action in models of cardiac reperfusion injury. RP MEHLHORN, RJ (reprint author), LAWRENCE BERKELEY LAB,DIV ENERGY & ENVIRONM,BERKELEY,CA 94720, USA. NR 46 TC 44 Z9 44 U1 0 U2 5 PU HARWOOD ACAD PUBL GMBH PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 8755-0199 J9 FREE RADICAL RES COM JI Free Radic. Res. Commun. PY 1992 VL 17 IS 3 BP 157 EP 175 DI 10.3109/10715769209068163 PG 19 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA JW814 UT WOS:A1992JW81400001 PM 1334035 ER PT B AU ALLEN, M KASSICIEH, S RADOSEVICH, R SODERSTROM, J AF ALLEN, M KASSICIEH, S RADOSEVICH, R SODERSTROM, J BE Churchill, NC Birley, S Bygrave, WD Muzyka, DF Wahlbin, C Wetzel, WE TI ATTITUDINAL AND SITUATIONAL DIFFERENCES BETWEEN NATIONAL LABORATORY INVENTORS AND INVENTOR-ENTREPRENEURS SO FRONTIERS OF ENTREPRENEURSHIP RESEARCH 1992 LA English DT Proceedings Paper CT 12th Annual Babson-College Entrepreneurship Research Conference CY JUN 28-JUL 01, 1992 CL FONTAINEBLEAU, FRANCE SP Babson Coll Ctr Entrepreneurial Studies, INSEAD, European Inst Business Adm C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BABSON COLLEGE CENTER ENTREPRENEURIAL STUDIES PI BABSON PARK PA BABSON PARK, MA 02157-0310 BN 0-910897-13-1 PY 1992 BP 51 EP 62 PG 12 WC Business SC Business & Economics GA BD17Z UT WOS:A1992BD17Z00004 ER PT B AU RASMUSSEN, S FELDBERG, R KNUDSEN, C AF RASMUSSEN, S FELDBERG, R KNUDSEN, C BE TranThanhVan, J TranThanhVan, K Mounolou, JC Schneider, J McKay, C TI SELF-PROGRAMMING OF MATTER AND THE EVOLUTION OF PROTO-BIOLOGICAL ORGANIZATIONS SO FRONTIERS OF LIFE LA English DT Proceedings Paper CT 3rd Blois Rencontre: Frontiers of Life CY OCT 14-19, 1991 CL CHATEAU DE BLOIS, FRANCE SP CNRS, MINIST RECH & TECHNOL FRANCE, CEA, NASA, INST ADV STUDIES BIOL, AGENCE SPATIALE EUROPEENNE, OBSERV PARIS MEUDON, CONSEIL REG REG CTR, CONSEIL GEN LOIR ET CHER, VILLE BLOIS C1 LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545. RI Knudsen, Carsten/A-7767-2011 NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-125-0 PY 1992 BP 133 EP 143 PG 11 WC Biology SC Life Sciences & Biomedicine - Other Topics GA BA82Z UT WOS:A1992BA82Z00010 ER PT J AU WALDO, GS MULLINS, OC PENNERHAHN, JE CRAMER, SP AF WALDO, GS MULLINS, OC PENNERHAHN, JE CRAMER, SP TI DETERMINATION OF THE CHEMICAL ENVIRONMENT OF SULFUR IN PETROLEUM ASPHALTENES BY X-RAY ABSORPTION-SPECTROSCOPY SO FUEL LA English DT Article DE SPECTROSCOPIC ANALYSIS; ASPHALTENE; PETROLEUM ID SULFUR FORMS; COAL AB Sulphur K-edge X-ray absorption spectra are analysed for a diverse series of petroleum asphaltenes. The spectra of the asphaltenes are interpreted by fitting with a linear superposition of model compound spectra. This analysis procedure is shown to work quite well in a stringent test case. The reduced forms of sulphur, thiophenes and sulphides dominate in all of the asphaltenes. Generally, the sulphoxide group is the most dominant form of the oxidized sulphur. Comparison of the X-ray data with the elemental composition of the asphaltenes shows that the sulphur and oxygen are preferentially bonded to each other. The inverse dependence of the oxygen-sulphur correlation with the fraction of sulphur which is sulphide suggests that oxidation of sulphur occurs preferentially at the sulphide group. C1 SCHLUMBERGER DOLL RES CTR,RIDGEFIELD,CT 06877. UNIV CALIF DAVIS,DEPT APPL SCI,DAVIS,CA 95616. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV APPL SCI,BERKELEY,CA 94720. RP WALDO, GS (reprint author), UNIV MICHIGAN,DEPT CHEM,ANN ARBOR,MI 48109, USA. NR 19 TC 87 Z9 89 U1 0 U2 5 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0016-2361 J9 FUEL JI Fuel PD JAN PY 1992 VL 71 IS 1 BP 53 EP 57 DI 10.1016/0016-2361(92)90192-Q PG 5 WC Energy & Fuels; Engineering, Chemical SC Energy & Fuels; Engineering GA GU366 UT WOS:A1992GU36600008 ER PT J AU BOGEN, KT COLSTON, BW MACHICAO, LK AF BOGEN, KT COLSTON, BW MACHICAO, LK TI DERMAL ABSORPTION OF DILUTE AQUEOUS CHLOROFORM, TRICHLOROETHYLENE, AND TETRACHLOROETHYLENE IN HAIRLESS GUINEA-PIGS SO FUNDAMENTAL AND APPLIED TOXICOLOGY LA English DT Article ID VOLATILE ORGANIC-COMPOUNDS; PERCUTANEOUS-ABSORPTION; SKIN ABSORPTION; DRINKING-WATER; RISK; EXPOSURE; PHARMACOKINETICS; PERMEABILITY; SOLVENTS; INDOOR RP BOGEN, KT (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV ENVIRONM SCI,LIVERMORE,CA 94550, USA. NR 47 TC 39 Z9 40 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0272-0590 J9 FUND APPL TOXICOL JI Fundam. Appl. Toxicol. PD JAN PY 1992 VL 18 IS 1 BP 30 EP 39 DI 10.1016/0272-0590(92)90192-K PG 10 WC Toxicology SC Toxicology GA HB794 UT WOS:A1992HB79400004 PM 1601207 ER PT J AU MAJUMDAR, S AF MAJUMDAR, S TI RATCHETING PROBLEMS OF THE UNITED-STATES INTERNATIONAL THERMONUCLEAR EXPERIMENTAL REACTOR SO FUSION TECHNOLOGY LA English DT Article DE RATCHETTING; UNITED-STATES INTERNATIONAL THERMONUCLEAR EXPERIMENTAL REACTOR; BREE DIAGRAM AB Because of the presence of high cyclic thermal stress, coolant pressure-induced primary stress, and disruption-induced high cyclic primary stress, ratcheting (i.e., incremental accumulation of plastic strain) in the first wall poses a serious challenge to the designers of the U.S. International Thermonuclear Experimental Reactor (ITER). Existing design tools, such as the Bree diagram in the American Society of Mechanical Engineers Boiler and Pressure Vessels Code, are not directly applicable to the U.S. ITER because of important differences in geometry and loading modes. Available alternative models for ratcheting are discussed, and new Bree diagrams, which are more relevant for fusion reactor applications, are proposed. RP MAJUMDAR, S (reprint author), ARGONNE NATL LAB,DIV MAT & COMPONENTS TECHNOL,ARGONNE,IL 60439, USA. NR 10 TC 1 Z9 1 U1 0 U2 0 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0748-1896 J9 FUSION TECHNOL JI Fusion Technol. PD JAN PY 1992 VL 21 IS 1 BP 12 EP 24 PG 13 WC Nuclear Science & Technology SC Nuclear Science & Technology GA GW874 UT WOS:A1992GW87400002 ER PT B AU KLEM, JF LOTT, JA SCHIRBER, JE KURTZ, SR AF KLEM, JF LOTT, JA SCHIRBER, JE KURTZ, SR BE STRINGFELLOW, GB TI STRAINED QUANTUM-WELL INGASB/ALGASB HETEROSTRUCTURES GROWN BY MOLECULAR-BEAM EPITAXY SO GALLIUM ARSENIDE AND RELATED COMPOUNDS 1991 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 18TH INTERNATIONAL SYMP ON GALLIUM ARSENIDE AND RELATED COMPOUNDS CY SEP 09-12, 1991 CL SEATTLE, WA SP AIR FORCE OFF SCI RES, BANDGAP TECHNOL, BOEING SCI & TECHNOL CTR, FISONS INSTRUMENTS, IEEE, SIEMENS ID FIELD-EFFECT TRANSISTOR; CHANNEL RP KLEM, JF (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-410-0 J9 INST PHYS CONF SER PY 1992 VL 120 BP 79 EP 82 PG 4 WC Physics, Condensed Matter SC Physics GA BV60K UT WOS:A1992BV60K00014 ER PT B AU FRIEDMAN, DJ KIBBLER, AE OLSON, JM AF FRIEDMAN, DJ KIBBLER, AE OLSON, JM BE STRINGFELLOW, GB TI TEMPERATURE-DEPENDENT ELECTRON-MOBILITY AND CLUSTERING IN GAINP2 SO GALLIUM ARSENIDE AND RELATED COMPOUNDS 1991 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 18TH INTERNATIONAL SYMP ON GALLIUM ARSENIDE AND RELATED COMPOUNDS CY SEP 09-12, 1991 CL SEATTLE, WA SP AIR FORCE OFF SCI RES, BANDGAP TECHNOL, BOEING SCI & TECHNOL CTR, FISONS INSTRUMENTS, IEEE, SIEMENS ID IN1-XGAXASYP1-Y; GA0.5IN0.5P; PARAMETERS; SCATTERING; TRANSPORT RP FRIEDMAN, DJ (reprint author), SOLAR ENERGY RES INST,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-410-0 J9 INST PHYS CONF SER PY 1992 VL 120 BP 383 EP 388 PG 6 WC Physics, Condensed Matter SC Physics GA BV60K UT WOS:A1992BV60K00073 ER PT B AU JONES, ED LYO, SK KLEM, JF SCHIRBER, JE LIN, SY AF JONES, ED LYO, SK KLEM, JF SCHIRBER, JE LIN, SY BE STRINGFELLOW, GB TI GROUND-STATE INPLANE LIGHT-HOLES IN GAAS/ALGAAS STRUCTURES SO GALLIUM ARSENIDE AND RELATED COMPOUNDS 1991 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 18TH INTERNATIONAL SYMP ON GALLIUM ARSENIDE AND RELATED COMPOUNDS CY SEP 09-12, 1991 CL SEATTLE, WA SP AIR FORCE OFF SCI RES, BANDGAP TECHNOL, BOEING SCI & TECHNOL CTR, FISONS INSTRUMENTS, IEEE, SIEMENS RP JONES, ED (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-410-0 J9 INST PHYS CONF SER PY 1992 VL 120 BP 407 EP 412 PG 6 WC Physics, Condensed Matter SC Physics GA BV60K UT WOS:A1992BV60K00077 ER PT B AU LYO, SK JONES, ED AF LYO, SK JONES, ED BE STRINGFELLOW, GB TI VALENCE-BAND ENERGY DISPERSION IN MODULATION-DOPED QUANTUM-WELLS - EFFECT OF STRAIN AND CONFINEMENT ON HEAVY-HOLE AND LIGHT-HOLE MIXING SO GALLIUM ARSENIDE AND RELATED COMPOUNDS 1991 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 18TH INTERNATIONAL SYMP ON GALLIUM ARSENIDE AND RELATED COMPOUNDS CY SEP 09-12, 1991 CL SEATTLE, WA SP AIR FORCE OFF SCI RES, BANDGAP TECHNOL, BOEING SCI & TECHNOL CTR, FISONS INSTRUMENTS, IEEE, SIEMENS ID HETEROJUNCTIONS RP LYO, SK (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-410-0 J9 INST PHYS CONF SER PY 1992 VL 120 BP 583 EP 588 PG 6 WC Physics, Condensed Matter SC Physics GA BV60K UT WOS:A1992BV60K00107 ER PT B AU KURTZ, SR BIEFELD, RM DAWSON, LR DOYLE, BL AF KURTZ, SR BIEFELD, RM DAWSON, LR DOYLE, BL BE STRINGFELLOW, GB TI AN OVERVIEW OF THE ELECTRONIC-PROPERTIES OF INAS1-XSBX STRAINED-LAYER SUPERLATTICES (0 GREATER-THAN-OR-EQUAL-TO X GREATER-THAN-OR-EQUAL-TO 1) SO GALLIUM ARSENIDE AND RELATED COMPOUNDS 1991 SE INSTITUTE OF PHYSICS CONFERENCE SERIES LA English DT Proceedings Paper CT 18TH INTERNATIONAL SYMP ON GALLIUM ARSENIDE AND RELATED COMPOUNDS CY SEP 09-12, 1991 CL SEATTLE, WA SP AIR FORCE OFF SCI RES, BANDGAP TECHNOL, BOEING SCI & TECHNOL CTR, FISONS INSTRUMENTS, IEEE, SIEMENS ID BAND-STRUCTURE; INASSB RP KURTZ, SR (reprint author), SANDIA NATL LABS,ALBUQUERQUE,NM 87185, USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA BRISTOL BN 0-85498-410-0 J9 INST PHYS CONF SER PY 1992 VL 120 BP 595 EP 600 PG 6 WC Physics, Condensed Matter SC Physics GA BV60K UT WOS:A1992BV60K00109 ER PT J AU TURNER, MS AF TURNER, MS TI THE TILTED UNIVERSE SO GENERAL RELATIVITY AND GRAVITATION LA English DT Article ID COSMIC BACKGROUND-RADIATION; LARGE-SCALE ANISOTROPY; ELLIPTICAL GALAXIES; SUPERGALACTIC CENTER; SPECTROSCOPY; PHOTOMETRY; MOTION; FLOW AB The simplest interpretation of the CMBR dipole anisotropy is that it arises due to our motion with respect to the cosmic rest frame. However, the existence of a superhorizon-sized isocurvature perturbation can give rise to a dipole anisotropy intrinsic to the CMBR. In this case the cosmic rest frame and the CMBR rest frame do not coincide, and when viewed from the CMBR rest frame the universe appears "tilted": matter streams uniformly from one side of the universe to the other. The intrinsic dipole model provides an explanation for the puzzling observation that most of the matter within a 100h-1 Mpc cube centered on our galaxy has a large velocity (of order 600 km s-1) with respect to the CMBR rest frame. C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS & ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP TURNER, MS (reprint author), NASA,FERMILAB ASTROPHYS CTR,FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510, USA. NR 29 TC 4 Z9 4 U1 0 U2 0 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0001-7701 J9 GEN RELAT GRAVIT JI Gen. Relativ. Gravit. PD JAN PY 1992 VL 24 IS 1 BP 1 EP 7 DI 10.1007/BF00756869 PG 7 WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA HA114 UT WOS:A1992HA11400001 ER PT J AU EMANUEL, A SZUCS, S WEIER, HUG KOVACS, G AF EMANUEL, A SZUCS, S WEIER, HUG KOVACS, G TI CLONAL ABERRATIONS OF CHROMOSOMES-X, CHROMOSOME-Y, CHROMOSOME-7 AND CHROMOSOME-10 IN NORMAL KIDNEY TISSUE OF PATIENTS WITH RENAL-CELL TUMORS SO GENES CHROMOSOMES & CANCER LA English DT Note ID CARCINOMA; CYTOGENETICS; TRISOMY-7 AB By means of G-banding techniques, chromosome aberrations were studied in short-term cultures of normal renal parenchymal cells from 45 patients with renal cell carcinoma. Clonal chromosomal aberrations were detected in 29 patients; loss of the Y chromosome as well as trisomy X, 5, 7, 9, 10, 12, and 18 was found. Chromosomes 7 and 10 were involved preferentially. Results of fluorescence in situ hybridization with chromosome 7- and 10-specific DNA probes on non-cultured normal kidney cells suggested that the aberrations developed in vivo. C1 UNIV FREIBURG,INST PATHOL,CYTOGENET LAB,W-7800 FREIBURG,GERMANY. UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV BIOMED SCI,LIVERMORE,CA 94550. NCI,FREDERICK CANC RES & DEV CTR,DYNCORP,PROGRAM RESOURCES INC,FREDERICK,MD 21701. FU NCI NIH HHS [N01-CO-74102] NR 18 TC 62 Z9 62 U1 0 U2 0 PU WILEY-LISS PI NEW YORK PA DIV JOHN WILEY & SONS INC 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 1045-2257 J9 GENE CHROMOSOME CANC JI Gene Chromosomes Cancer PD JAN PY 1992 VL 4 IS 1 BP 75 EP 77 DI 10.1002/gcc.2870040110 PG 3 WC Oncology; Genetics & Heredity SC Oncology; Genetics & Heredity GA HC349 UT WOS:A1992HC34900009 PM 1377012 ER PT J AU WEIL, CF MARILLONNET, S BURR, B WESSLER, SR AF WEIL, CF MARILLONNET, S BURR, B WESSLER, SR TI CHANGES IN STATE OF THE WX-M5 ALLELE OF MAIZE ARE DUE TO INTRAGENIC TRANSPOSITION OF DS SO GENETICS LA English DT Article ID TRANSPOSABLE ELEMENT DISSOCIATION; ZEA-MAYS-L; MOLECULAR ANALYSIS; ANTIRRHINUM-MAJUS; WAXY LOCUS; ESCHERICHIA-COLI; GENE-EXPRESSION; BRONZE LOCUS; DNA-SEQUENCE; EXCISION AB The molecular basis for the unusual phenotype conditioned by the waxy(Wx)-m5 Ds allele has been elucidated. Unlike most Ds alleles, Wx-m5 is phenotypically wild-type in the absence of Ac. We find that the Wx-m5 gene contains a 2-kb Ds element at -470 relative to the start of Wx transcription, representing the most 5' insertion of any transposable element allele characterized to date in plants. Despite its wild type phenotype, Wx-m5 has reduced levels of Wx enzymatic activity indicating that Ds insertion influences Wx gene expression. In the presence of Ac, Wx-m5 kernels have sectors of null expression on a wild-type background and give rise to stable wx and unstable wx-m germinal derivatives. Seventeen of 20 derivatives examined are wx-m alleles and at least 15 of these appear to result from intragenic transposition of Ds from -470 to new sites within the Wx gene. Three wx-m alleles contain two Ds elements, one at -470 and a second in Wx coding sequences. Surprisingly, only 3 out of 20 derivatives are stable wx mutants and these have sustained gross rearrangements of Wx and flanking sequences. For most other maize transposable element alleles somatic sectors and germinal derivatives usually arise following element excision or deletions of element sequences. In contrast, element insertion following intragenic transposition is apparently responsible for most of the somatic sectors and germinal derivatives of Wx-m5. C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. RP WEIL, CF (reprint author), UNIV GEORGIA,DEPT BOT,ATHENS,GA 30602, USA. FU NIGMS NIH HHS [GM32528] NR 58 TC 42 Z9 42 U1 0 U2 2 PU GENETICS PI BALTIMORE PA 428 EAST PRESTON ST, BALTIMORE, MD 21202 SN 0016-6731 J9 GENETICS JI Genetics PD JAN PY 1992 VL 130 IS 1 BP 175 EP 185 PG 11 WC Genetics & Heredity SC Genetics & Heredity GA GX543 UT WOS:A1992GX54300016 PM 1310086 ER PT J AU BARNES, DE KODAMA, KI TYNAN, K TRASK, BJ CHRISTENSEN, M DEJONG, PJ SPURR, NK LINDAHL, T MOHRENWEISER, HW AF BARNES, DE KODAMA, KI TYNAN, K TRASK, BJ CHRISTENSEN, M DEJONG, PJ SPURR, NK LINDAHL, T MOHRENWEISER, HW TI ASSIGNMENT OF THE GENE ENCODING DNA LIGASE-I TO HUMAN-CHROMOSOME 19Q13.2-13.3 SO GENOMICS LA English DT Note ID EXCISION REPAIR GENE; MOLECULAR CHARACTERIZATION; CDNA CLONING; LIBRARIES; HOMOLOGY; ERCC2; XRCC1 C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DIV BIOMED SCI L452,CTR HUMAN GENOME,LIVERMORE,CA 94550. RP BARNES, DE (reprint author), IMPERIAL CANC RES FUND,CLARE HALL LABS,S MIMMS EN6 3LD,HERTS,ENGLAND. FU NHGRI NIH HHS [HG00256-01] NR 11 TC 29 Z9 29 U1 0 U2 2 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0888-7543 J9 GENOMICS JI Genomics PD JAN PY 1992 VL 12 IS 1 BP 164 EP 166 DI 10.1016/0888-7543(92)90422-O PG 3 WC Biotechnology & Applied Microbiology; Genetics & Heredity SC Biotechnology & Applied Microbiology; Genetics & Heredity GA GV797 UT WOS:A1992GV79700025 PM 1733856 ER PT J AU COLE, DR OHMOTO, H JACOBS, GK AF COLE, DR OHMOTO, H JACOBS, GK TI ISOTOPIC EXCHANGE IN MINERAL-FLUID SYSTEMS .3. RATES AND MECHANISMS OF OXYGEN ISOTOPE EXCHANGE IN THE SYSTEM GRANITE-H2O +/- NACL +/- KCL AT HYDROTHERMAL CONDITIONS SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID HYDROGEN ISOTOPE; WATER; FRACTIONATION; DISSOLUTION; KINETICS; ROCKS; DIFFUSION; RANGE AB Variations with time in the alteration mineralogy and the oxygen isotopic composition of solutions, minerals, and rocks have been experimentally investigated in the system granite-H2O + NaCl +/- KCl at T = 170-degrees to 300-degrees-C, P = L/V to 0.3 kb, water/rock mass ratios (0.2 to 6), and grain sizes (approximately 0.1 mm to 2.5 mm) for periods up to 1006 h. Alteration assemblages formed in the experiments are dominated by chlorite (after biotite), sericite-zeolite-albite (after K-feldspar and plagioclase), and hematite (after magnetite and pyrite). The abundance of these minerals continued to increase with increasing reaction time, temperature, NaCl (or KCl) concentration of solution, and surface area of solids. However, major element concentrations attained steady state in less than 330 h. Reaction of rock (delta-O-18(i) congruent-to +8 parts per thousand) and aqucous solution (delta-O-18(i) congruent-to -10 parts per thousand) resulted in depletion of O-18 in the solid and enrichment of O-18 in the fluid. The magnitudes of change increase as temperature, time, salt concentration, and surface area increase. The trends in isotopic shifts are directly related to changes in the style and intensity of mineralogic alterations in the granite. The degree of isotope exchange in the experimental systems between granite (minerals) and solutions was computed from the comparison with calculated equilibrium fractionation factors and yield values of less than 5 to 50% exchange. The delta-O-18 changes of the rocks, minerals, and fluid were observed to follow closely with those expected from a first-order rate law. At temperatures between 170 and 300-degrees-C, rate constants for the oxygen isotope exchange between granite and pure water range from 10(-9) to 10(8.1) (moles 0 m-2 sec-1) whereas rates in the granite-0.1 m NaCl system range from 10(-8.5) to 10(-7.6). Rate constants were also retrieved for biotite, K-feldspar, and plagioclase interacted with either pure water or 0.1-1 m NaCl. Based on a simple closed-system model with (W/S) mass ratios between 0.5 and 5, we estimate the minimum time required for granite-fluid isotopic equilibration to be roughly 200 years or less for grains 1 cm in radius or smaller (porous-media analog) reacted at 300-degrees-C, and between 10(4) and 10(5) years for grains ranging from 0.1 to 1 m in radius (fractured-media analog) reacted at 300-degrees-C. C1 PENN STATE UNIV,DEPT GEOSCI,UNIV PK,PA 16802. TOHOKU UNIV,FAC SCI,INST PETROL MINERAL & ECON GEOL,SENDAI,MIYAGI 980,JAPAN. OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831. RP COLE, DR (reprint author), OAK RIDGE NATL LAB,DIV CHEM,OAK RIDGE,TN 37831, USA. NR 50 TC 30 Z9 31 U1 0 U2 13 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JAN PY 1992 VL 56 IS 1 BP 445 EP 466 DI 10.1016/0016-7037(92)90144-8 PG 22 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA HB840 UT WOS:A1992HB84000033 ER PT J AU KUN, W CHATTERTON, BDE ATTREP, M ORTH, CJ AF KUN, W CHATTERTON, BDE ATTREP, M ORTH, CJ TI IRIDIUM ABUNDANCE MAXIMA AT THE LATEST ORDOVICIAN MASS EXTINCTION HORIZON, YANGTZE BASIN, CHINA - TERRESTRIAL OR EXTRATERRESTRIAL SO GEOLOGY LA English DT Article ID SILURIAN BOUNDARY; STRATIGRAPHY; CONSEQUENCES; STRATOTYPE AB Neutron activation analyses of the Chinese Ordovician/Silurian (O/S) boundary sections at two distant localities in the Yangtze Basin, spanning the horizon of a major latest Ordovician global extinction event, show the maxima of iridium abundances to be coincident with the extinction horizon at the base of the graptolite Glyptograptus persculptus zone. The 0.23 ppb Ir maximum in the Yichang type section is almost as large as the late Eocene impact Ir anomaly. However, we have observed that the tr abundances in the Chinese sections are closely correlated with the sedimentation rates, and we therefore have concluded that the Ir maxima do not indicate a cataclysmic extraterrestrial impact at this extinction level. C1 UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. RP KUN, W (reprint author), UNIV ALBERTA,DEPT GEOL,EDMONTON T6G 2E3,ALBERTA,CANADA. NR 34 TC 1 Z9 1 U1 0 U2 2 PU GEOLOGICAL SOC AMERICA PI BOULDER PA PO BOX 9140 3300 PENROSE PLACE, BOULDER, CO 80301 SN 0091-7613 J9 GEOLOGY JI Geology PD JAN PY 1992 VL 20 IS 1 BP 39 EP 42 PG 4 WC Geology SC Geology GA GZ537 UT WOS:A1992GZ53700010 ER PT J AU CHANCE, MS GREENE, JM JENSEN, TH AF CHANCE, MS GREENE, JM JENSEN, TH TI THE FIELD LINE TOPOLOGY OF A UNIFORM MAGNETIC-FIELD SUPERPOSED ON THE FIELD OF A DISTRIBUTED RING CURRENT SO GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS LA English DT Article DE MAGNETIC TOPOLOGY; NULLS; DIPOLE-IMF FIELD ID RECONNECTION AB A magnetic field line topology with nulls, generated by superimposing a uniform magnetic field onto the field from a distributed ring current, is analyzed. This simple model, which is reminiscent of the structures found in laboratory field reversed configurations and detached plasmoids, is amenable to substantial analytical progress and also facilitates the visualization of the three dimensional field geometry. Four nulls are seen to exist and representative field lines and tubes of flux found by numerical integration are presented. An infinite number of topologically distinct flux bundles is found. These are distinguished by the number of times they encircle a circular magnetic field line. A convenient mapping is described which proves very useful in distinguishing between and following the paths of the different tubes of flux as they traverse through the null system. The separatrices that divide these flux bundles are described. The complexities already present in this simple but nontrivial configuration serve to emphasize the difficulties in analyzing more complicated geometries, but the intuition gained from this study proves beneficial in those cases. One such example is the comparison of the generic features of our model with those found in a topologically different model of plasmoid formations in the earth's magnetotail. C1 GEN ATOM,SAN DIEGO,CA 92186. RP CHANCE, MS (reprint author), PRINCETON UNIV,PLASMA PHYS LAB,POB 451,PRINCETON,NJ 08543, USA. NR 7 TC 6 Z9 6 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0309-1929 J9 GEOPHYS ASTRO FLUID JI Geophys. Astrophys. Fluid Dyn. PY 1992 VL 65 IS 1-4 BP 203 EP 230 DI 10.1080/03091929208225247 PG 28 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Mechanics SC Astronomy & Astrophysics; Geochemistry & Geophysics; Mechanics GA ME876 UT WOS:A1992ME87600011 ER PT J AU GAJEWSKI, D PSENCIK, I AF GAJEWSKI, D PSENCIK, I TI VECTOR WAVE-FIELDS FOR WEAKLY ATTENUATING ANISOTROPIC MEDIA BY THE RAY METHOD SO GEOPHYSICS LA English DT Article ID SYNTHETIC SEISMOGRAMS; WAVE-PROPAGATION; CRACKS; COMPUTATION; FREQUENCY AB The ray method is used to compute high-frequency seismic vector wavefields in weakly attenuating layered anisotropic structures. The attenuating effects are introduced by substituting the real elastic parameters for perfectly elastic media by complex frequency dependent elastic parameters with small imaginary parts. The imaginary parts are formally considered to be of the order of omega-1 for omega --> infinity. Under this assumption, it is possible to work with real rays, only the eikonal is complex. The approximate computations based on this algorithm are only a few percent slower than those for perfectly elastic anisotropic media. The range of applicability of the weak attenuation concept is investigated by comparison of ray computations with results of the reflectivity method for an isotropic, constant gradient model. The study indicates that the region of applicability of the weak attenuation concept may be broader than expected. The combined effects of anisotropy and attenuation on the propagation of seismic waves in a three-dimensional model of the uppermost crust with an anisotropic attenuating layer are then studied. The anisotropy as well as the attenuation are supposed to be caused by aligned partially liquid-filled cracks. Hudson's formulas to compute complex effective elastic parameters are used. Frequency responses and VSP synthetic seismograms for different degrees of viscosity of the liquid, and, thus, different degree of attenuation, show the effects of attenuation on the propagating waves. Nine-component VSP vector wavefields are computed for two different source-borehole directions along the strike of the cracks and 45 degrees off the strike of the cracks. The seismograms for the attenuating model are compared with seismograms for the corresponding perfectly elastic model. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CTR COMP SEISMOL,BERKELEY,CA 94720. RI Gajewski, Dirk/C-1077-2011 NR 30 TC 24 Z9 24 U1 1 U2 1 PU SOC EXPLORATION GEOPHYSICISTS PI TULSA PA 8801 S YALE ST, TULSA, OK 74137 SN 0016-8033 J9 GEOPHYSICS JI Geophysics PD JAN PY 1992 VL 57 IS 1 BP 27 EP 38 DI 10.1190/1.1443186 PG 12 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA GY588 UT WOS:A1992GY58800003 ER PT J AU WITTEN, A GILLETTE, DD SYPNIEWSKI, J KING, WC AF WITTEN, A GILLETTE, DD SYPNIEWSKI, J KING, WC TI GEOPHYSICAL DIFFRACTION TOMOGRAPHY AT A DINOSAUR SITE SO GEOPHYSICS LA English DT Article ID PROPAGATION AB In 1979 two hikers discovered the partially exposed bones from the tail of a dinosaur in the high desert of New Mexico. Excavation in 1985 led to the recognition that the dinosaur, informally named "Seismosaurus," was new to science. It is by far the longest dinosaur on record. Excavations continued in 1986 with the discovery that additional bones leading forward from the middle region of the tail, potentially toward the remainder of the skeleton, remained entombed in the 145 million year old sandstone. The site has been the subject of intensive experimentation to assess the feasibility of geophysical remote sensing in exploration paleontology. The efforts of numerous investigators at the site may serve to change the century-old methods of hammer and chisel, in part, to those based on more modern technology. One of the methods tested is geophysical diffraction tomography (GDT). Unlike the more common straight-ray algorithms of geophysical tomography that map subsurface properties by projecting received signal amplitude or time of the first signal arrival back to the source, GDT treats the problem as one of wave propagation by inverting the linearized wave equation to compute the spatial distribution of refractive index. Excavation of the "Seismosaurus" skeleton continues. The purpose of our most recent GDT study is to further test the method and to guide paleontologists in their future excavations by locating and identifying the buried skeletal remains. A total of eleven imaged vertical cross-sections displayed features of sufficient acoustic contrast to be tentatively identified as dinosaur bone. Although the GDT resolution is insufficient to characterize bone shape, bone identification was subjectively accomplished on the basis of size, aspect ratio, and position. Based on this interpretation, it is believed that much of the remaining skeleton exists and is in near articulation. C1 WAYNE STATE UNIV,DIV ENGN TECHNOL,DETROIT,MI 48202. USA,ENVIRONM HYG ACTIV W,AURORA,CO 80045. DIV STATE HIST,SALT LAKE CITY,UT 84101. SW PALEONTOL FDN,ALBUQUERQUE,NM 87106. RP WITTEN, A (reprint author), OAK RIDGE NATL LAB,DIV ENERGY,OAK RIDGE,TN 37831, USA. NR 17 TC 12 Z9 13 U1 0 U2 2 PU SOC EXPLORATION GEOPHYSICISTS PI TULSA PA 8801 S YALE ST, TULSA, OK 74137 SN 0016-8033 J9 GEOPHYSICS JI Geophysics PD JAN PY 1992 VL 57 IS 1 BP 187 EP 195 DI 10.1190/1.1443183 PG 9 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA GY588 UT WOS:A1992GY58800019 ER PT J AU KENT, C RODEKOHR, M AF KENT, C RODEKOHR, M TI THE ROLE OF GOVERNMENT INFORMATION DURING PERIODS OF NATIONAL CRISIS - THE ENERGY INFORMATION ADMINISTRATION AND THE PERSIAN-GULF-WAR SO GOVERNMENT INFORMATION QUARTERLY LA English DT Article AB This article reviews the role of the Energy Information Administration (EIA) during the Persian Gulf War in providing the energy data and analyses used to minimize the impact of this crisis. The article is divided into three major sections. The first discusses the impact of petroleum supply disruptions on the economy and provides background material about previous petroleum supply disruptions and why these events are considered to be important from the national perspective. The second section describes the EIA's response to the 1990 Persian Gulf Crisis. The last section provides conclusions which can serve as guidelines for maximizing the effectiveness of statistical information agencies during national emergencies. RP KENT, C (reprint author), US DOE,ENERGY INFORMAT ADM,WASHINGTON,DC 20585, USA. NR 25 TC 0 Z9 0 U1 0 U2 0 PU JAI PRESS INC PI GREENWICH PA 55 OLD POST RD-#2, PO BOX 1678, GREENWICH, CT 06836-1678 SN 0740-624X J9 GOV INFORM Q JI Gov. Inf. Q. PY 1992 VL 9 IS 1 BP 11 EP 33 DI 10.1016/0740-624X(92)90030-P PG 23 WC Information Science & Library Science SC Information Science & Library Science GA HG131 UT WOS:A1992HG13100002 ER PT J AU ROGERS, L AF ROGERS, L TI HISTORY MATCHING TO DETERMINE THE RETARDATION OF PCE IN GROUND-WATER SO GROUND WATER LA English DT Article ID SHALLOW SAND AQUIFER; SOLUTE-TRANSPORT; INVERSE PROBLEM; MODEL; CALIBRATION; SYSTEMS; CONTAMINATION; PARAMETERS; HYDROLOGY; MOVEMENT AB Failure to incorporate retardation factors in solute transport predictions can lead to serious miscalculations of the degree of contamination and the time required for remediation. This study employs history matching, a vital component in the effort to calibrate models to specific field sites, to demonstrate the difficulties in matching historical well concentrations to a single retardation factor or source function. A 2-D hybrid finite-element/finite-difference, advection-dispersion code with retardation was used to match simulated perchloroethylene (PCE, also known as tetrachloroethylene) concentrations against observed concentrations in monitor wells at a well-characterized Superfund site. The transport model yielded reasonable matches for retardation factors between 1 and 3. This was in comparison to the 6 to 22 range of retardation factors based on laboratory batch sorption experiments and the 1 to 5 range based on field measurements of soil and associated well-water pore fluid. Simulation results demonstrated that for this site, retardation factors greater than or equal to 6 would imply releases of PCE prior to dates compatible with historical records. History matching can constrain the reasonable range of parameters necessary to model contaminants in ground water. RP ROGERS, L (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,DEPT EARTH SCI,LIVERMORE,CA 94550, USA. NR 35 TC 7 Z9 8 U1 0 U2 6 PU GROUND WATER PUBLISHING CO PI WESTERVILLE PA 601 DEMPSEY RD, WESTERVILLE, OH 43081 SN 0017-467X J9 GROUND WATER JI Ground Water PD JAN-FEB PY 1992 VL 30 IS 1 BP 50 EP 60 DI 10.1111/j.1745-6584.1992.tb00811.x PG 11 WC Geosciences, Multidisciplinary; Water Resources SC Geology; Water Resources GA GX626 UT WOS:A1992GX62600008 ER PT J AU DAS, KM VECCHI, M SQUILLANTE, L DASGUPTA, A HENKE, M CLAPP, N AF DAS, KM VECCHI, M SQUILLANTE, L DASGUPTA, A HENKE, M CLAPP, N TI MR-40 000 HUMAN COLONIC EPITHELIAL PROTEIN EXPRESSION IN COLONIC MUCOSA AND PRESENCE OF CIRCULATING ANTI-MR-40 000 ANTIBODIES IN COTTON TOP TAMARINS WITH SPONTANEOUS COLITIS SO GUT LA English DT Article ID CANCER-PRONE TAMARINS; ULCERATIVE-COLITIS; MONOCLONAL-ANTIBODY; SAGUINUS-OEDIPUS; MARMOSETS; PRIMATES; ANTIGEN AB Saguinus oedipus, Callithrix jacchus, and Saguinusfuscicollis are three species of New World monkeys which develop a form of colitis that is similar to human ulcerative colitis. Only S oedipus, however, develop colon cancer. We examined intestinal tissues from these animals for the presence of an antigen cross reacting to the Mr 40 000 human colonic epithelial protein that acts as an autoantigen in ulcerative colitis. Using an anti-Mr 40 000 monoclonal antibody (7E12H12, IgM isotype), by an immunoperoxidase assay we showed that all colon specimens from S oedipus reacted with 7E12H12; however, the colonic tissue from C jacchus and S fuscicollis did not. In immunotransblot analysis eluted IgG antibody bound to human ulcerative colitis colon (CCA-IgG) reacted with Mr 40 000 protein(s) present in the extracts of colon from S oedipus animals and humans. Small intestinal tissue reacted neither with 7E12H12 nor with CCA-IgG. In S oedipus, the Mr 40 000 protein was localised exclusively to colonic epithelial cells. Preincubation of seven S oedipus colon specimens with eight of 10 sera from animals with acute or chronic colitis and 0 of four sera from animals without colitis almost completely inhibited the binding of 7E12H12 to the colonic epithelium. Four of these 10 sera inhibited the binding of 7E12H12 to the autologous colon. These results show the presence of circulating autoantibodies in S oedipus with colitis against an epitope(s) on Mr 40 000 protein shared by human and S oedipus colon. C1 OAK RIDGE ASSOCIATED UNIV,OAK RIDGE,TN 37830. RP DAS, KM (reprint author), UNIV MED & DENT NEW JERSEY,ROBERT WOOD JOHNSON MED SCH,DEPT MED,1 ROBERT WOOD JOHNSON PL,NEW BRUNSWICK,NJ 08903, USA. NR 20 TC 12 Z9 12 U1 0 U2 0 PU BRITISH MED JOURNAL PUBL GROUP PI LONDON PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON, ENGLAND WC1H 9JR SN 0017-5749 J9 GUT JI Gut PD JAN PY 1992 VL 33 IS 1 BP 48 EP 54 DI 10.1136/gut.33.1.48 PG 7 WC Gastroenterology & Hepatology SC Gastroenterology & Hepatology GA HA212 UT WOS:A1992HA21200011 PM 1740277 ER PT J AU ROTMENSCH, J ATCHER, RW SCHWARTZ, JL GRDINA, DJ AF ROTMENSCH, J ATCHER, RW SCHWARTZ, JL GRDINA, DJ TI ANALYSIS OF ASCITES FROM PATIENTS WITH OVARIAN-CARCINOMA BY CELL FLOW-CYTOMETRY SO GYNECOLOGIC ONCOLOGY LA English DT Article ID PLOIDY; CANCER C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. ARGONNE NATL LAB,DIV BIOL & MED SCI,ARGONNE,IL 60439. UNIV CHICAGO,PRITZKER SCH MED,DEPT OBSTET & GYNECOL,DIV GYNECOL ONCOL,CHICAGO,IL 60637. OI Atcher, Robert/0000-0003-4656-2247 NR 7 TC 5 Z9 5 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0090-8258 J9 GYNECOL ONCOL JI Gynecol. Oncol. PD JAN PY 1992 VL 44 IS 1 BP 10 EP 12 DI 10.1016/0090-8258(92)90003-2 PG 3 WC Oncology; Obstetrics & Gynecology SC Oncology; Obstetrics & Gynecology GA HA838 UT WOS:A1992HA83800003 PM 1730415 ER PT J AU ROBERSON, PL CARLSON, RD AF ROBERSON, PL CARLSON, RD TI DETERMINING THE LOWER LIMIT OF DETECTION FOR PERSONNEL DOSIMETRY SYSTEMS SO HEALTH PHYSICS LA English DT Article DE DOSIMETRY; DOSIMETRY, PERSONNEL; EXPOSURE, OCCUPATIONAL; LOWER LIMIT OF DETECTION AB A simple method for determining the lower limit of detection (LLD) for personnel dosimetry systems is described. The method relies on the definition of a critical level and a detection level. The critical level is the signal level above which a result has a small probability of being due to a fluctuation of the background. All results below the critical level should not be reported as an indication of a positive result. The detection level is the net signal level (i.e., dose received) above which there is a high confidence that a true reading will be detected and reported as a qualitatively positive result. The detection level may be identified as the LLD. A simple formula is derived to allow the calculation of the LLD under various conditions. This type of formula is being used by the Department of Energy Laboratory Accreditation Program (DOELAP) for personnel dosimetry. Participants in either the National Voluntary Laboratory Accreditation Program (NVLAP) for personnel dosimetry or DOELAP can use performance test results along with a measurement of background levels to estimate the LLDs for their dosimetry system. As long as they maintain their dosimetry system such that the LLDs are less than half the lower limit of the NVLAP or DOELAP test exposure ranges, dosimetry laboratories can avoid testing failures due to poor performance at very low exposures. C1 US DOE, IDAHO OPERAT OFF, IDAHO FALLS, ID 83402 USA. RP ROBERSON, PL (reprint author), UNIV MICHIGAN, MED CTR, ANN ARBOR, MI 48109 USA. NR 10 TC 21 Z9 21 U1 0 U2 1 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD JAN PY 1992 VL 62 IS 1 BP 2 EP 9 DI 10.1097/00004032-199201000-00001 PG 8 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 GV911 UT WOS:A1992GV91100001 PM 1727409 ER PT J AU HARVEY, TF SHAPIRO, CS WITTLER, RF AF HARVEY, TF SHAPIRO, CS WITTLER, RF TI FALLOUT RISK FOLLOWING A MAJOR NUCLEAR ATTACK ON THE UNITED-STATES SO HEALTH PHYSICS LA English DT Article DE FALLOUT; NUCLEAR WAR; DOSE; RISK ANALYSIS AB Fallout distributions are calculated for nuclear attacks on the contiguous United States. Four attack scenarios are treated, including counterforce and counterforce-countervalue attacks, for meteorological conditions associated with a typical day in summer and one in winter. The countervalue attacks contain mostly airbursts. To determine fallout effects, the population surviving the prompt effects is first calculated. For the prompt effects, a "conflagration-type" model is used. The counterforce attack produces about 8 million prompt deaths, and the counterforce-countervalue case projects 98 million prompt deaths. Partial relocation before attack to low-risk fallout areas at least 15 km from potential strategic targets would result in a decrease in projections of deaths by tens of millions. For fallout risk calculations, only the dose received in the first 48 h (the early or local fallout) is considered. Populations are assumed to be sheltered, with a shelter protection factor profile that varies for a large urban area, a small urban area, or a rural area. With these profiles, without relocation, the fallout fatalities for all four attack scenarios are calculated to be less than one million people. This can be compared to fallout fatalities of about 10 million for a hypothetical unsheltered "phantom" population. C1 SAN FRANCISCO STATE UNIV, SAN FRANCISCO, CA 94132 USA. RP HARVEY, TF (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NR 16 TC 5 Z9 5 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 JAN PY 1992 VL 62 IS 1 BP 16 EP 28 DI 10.1097/00004032-199201000-00003 PG 13 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 GV911 UT WOS:A1992GV91100003 PM 1727408 ER PT J AU PETERSON, KR SHAPIRO, CS AF PETERSON, KR SHAPIRO, CS TI INTERNAL DOSE FOLLOWING A MAJOR NUCLEAR-WAR SO HEALTH PHYSICS LA English DT Article DE FALLOUT; DOSE, INTERNAL; NUCLEAR WAR; WEAPONS ID INTERACTIVE TRANSPORT; FOOD-CHAIN; FALLOUT; SMOKE; MODEL; WINTER; SIMULATIONS AB The PATHWAY model results were used, in conjunction with a hypothetical major nuclear attack on the U.S., to arrive at the ratio of internal to external dose for humans from early (48 h) fallout. Considered were the four nuclides (Cs-137, Sr-89, Sr-90, I-131) that account for most of the reconstructed whole-body committed equivalent dose from internal radiation in people who lived downwind of the Nevada Test Site during atmospheric tests. Effects of climate perturbations (the "nuclear winter" effect) on food crops were considered. These could increase internal dose estimates, depending on the severity of the climate perturbations. Internal and external doses to humans for 10 locations within the U.S. have been calculated, with varying local conditions and varying assumption about their shelters. The estimated 50-y internal dose commitment ranged from 0.0-0.17 Sv, the 48-h external dose from 0.15-4.6 Sv. The resultant ratios of internal to external committed dose received in the first months (until food transport was restored) varied from less than 0.01 to about 0.2. In all cases examined, the total dose from early fallout was found to be dominated by the external dose. C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. SAN FRANCISCO STATE UNIV, SAN FRANCISCO, CA 94132 USA. NR 38 TC 3 Z9 3 U1 0 U2 1 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD JAN PY 1992 VL 62 IS 1 BP 29 EP 40 DI 10.1097/00004032-199201000-00004 PG 12 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 GV911 UT WOS:A1992GV91100004 PM 1727410 ER PT J AU PEARSON, MD MARTZ, DE GEORGE, JL LANGNER, GH AF PEARSON, MD MARTZ, DE GEORGE, JL LANGNER, GH TI A MULTIYEAR QUALITY-CONTROL STUDY OF ALPHA-TRACK RADON MONITORS SO HEALTH PHYSICS LA English DT Note DE MONITORS, RADON; DETECTOR, ALPHA-TRACK; 222RN; QUALITY ASSURANCE AB Quality control exposures of commercial alpha-track radon monitors have been conducted approximately weekly at the U.S. Department of Energy (DOE) Grand Junction Projects Office since early 1987 in support of DOE remedial action programs. The results of these exposures provide a historical record of the comparative performances of these radon monitors. RP PEARSON, MD (reprint author), CHEM NUCL GEOTECH INC, US DOE, GRAND JUNCT PROJECTS OFF, POB 14000, GRAND JUNCTION, CO 81502 USA. NR 7 TC 4 Z9 4 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 JAN PY 1992 VL 62 IS 1 BP 87 EP 90 DI 10.1097/00004032-199201000-00012 PG 4 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA GV911 UT WOS:A1992GV91100012 PM 1727417 ER PT J AU PANCHAL, CB FRANCE, DM BELL, KJ AF PANCHAL, CB FRANCE, DM BELL, KJ TI EXPERIMENTAL INVESTIGATION OF SINGLE-PHASE, CONDENSATION, AND FLOW BOILING HEAT-TRANSFER FOR A SPIRALLY FLUTED TUBE SO HEAT TRANSFER ENGINEERING LA English DT Article AB A spirally fluted tube was tested in a vertically oriented shell-and-tube heat exchanger in both condensing and evaporating service. The heat exchanger showed substantial improvement in performance over that expected from a comparable exchanger with plain tubes. The condensation tests were run with working fluids of ammonia and R-114 condensing on the shell side of the heat exchange. The boiling tests were run with R-11 boiling on the tube side in upward force convection; heat was supplied by steam condensing on the shell side. C1 UNIV ILLINOIS,MECH ENGN,CHICAGO,IL 60680. OKLAHOMA STATE UNIV,CHEM ENGN,STILLWATER,OK 74078. RP PANCHAL, CB (reprint author), ARGONNE NATL LAB,ARGONNE,IL 60439, USA. NR 17 TC 4 Z9 5 U1 3 U2 5 PU HEMISPHERE PUBL CORP PI BRISTOL PA 1900 FROST ROAD, SUITE 101, BRISTOL, PA 19007-1598 SN 0145-7632 J9 HEAT TRANSFER ENG JI Heat Transf. Eng. PD JAN-MAR PY 1992 VL 13 IS 1 BP 42 EP 52 DI 10.1080/01457639208939770 PG 11 WC Thermodynamics; Engineering, Mechanical; Mechanics SC Thermodynamics; Engineering; Mechanics GA HF296 UT WOS:A1992HF29600005 ER PT B AU KLINGLER, RJ KRAUSE, TR RATHKE, JW AF KLINGLER, RJ KRAUSE, TR RATHKE, JW BE MOSER, WR SLOCUM, DW TI HYDROGEN ACTIVATION BY SOLUBLE METAL-OXIDE COMPLEXES SO HOMOGENEOUS TRANSITION METAL CATALYZED REACTIONS SE ADVANCES IN CHEMISTRY SERIES LA English DT Proceedings Paper CT SYMP ON HOMOGENEOUS TRANSITION METAL CATALYZED REACTIONS, AT THE 199TH NATIONAL MEETING OF THE AMERICAN CHEMICAL SOC CY APR 22-27, 1990 CL BOSTON, MA SP AMER CHEM SOC, CATALYSIS SECRETARIAT RP KLINGLER, RJ (reprint author), ARGONNE NATL LAB,DIV CHEM TECHNOL,ARGONNE,IL 60439, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA WASHINGTON BN 0-8412-2007-7 J9 ADV CHEM SER PY 1992 VL 230 BP 337 EP 348 PG 12 WC Chemistry, Applied; Chemistry, Multidisciplinary; Engineering, Chemical SC Chemistry; Engineering GA BW97Q UT WOS:A1992BW97Q00023 ER PT J AU BENGTSSON, R AF BENGTSSON, R TI NUCLEAR ORIENTATION MEASUREMENTS AND THEIR CONTRIBUTION TO OUR UNDERSTANDING OF THE STRUCTURE OF NUCLEI SO HYPERFINE INTERACTIONS LA English DT Article; Proceedings Paper CT 2ND INTERNATIONAL CONF ON ON-LINE NUCLEAR ORIENTATION ( OLNO-2 ) CY OCT 16-19, 1991 CL JOINT INST HEAVY ION RES, OAK RIDGE, TN SP JOINT INST HEAVY ION & RES, UNIV ISOTOPE SEPARATOR OAK RIDGE HO JOINT INST HEAVY ION RES ID CD-110 AB A survey is made of new regions of nuclei, which may become accessible to nuclear orientation experiments as the on-line technique matures. Basic nuclear properties that can be investigated by means of nuclear orientation are briefly reviewed. Examples of systematic use of nuclear moments for revealing nuclear properties are given as is an example of of the combined use of low-spin nuclear orientation data and high-spin heavy-ion reaction data. RP BENGTSSON, R (reprint author), OAK RIDGE ASSOCIATED UNIV,UNISOR,POB 117,OAK RIDGE,TN 37831, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU BALTZER SCI PUBL BV PI AMSTERDAM PA ASTERWEG 1A, 1031 HL AMSTERDAM, NETHERLANDS SN 0304-3843 J9 HYPERFINE INTERACT JI Hyperfine Interact. PY 1992 VL 75 IS 1-4 BP 3 EP 22 DI 10.1007/BF02398960 PG 20 WC Physics, Atomic, Molecular & Chemical; Physics, Condensed Matter; Physics, Nuclear SC Physics GA KB552 UT WOS:A1992KB55200002 ER EF