FN Thomson Reuters Web of Science™ VR 1.0 PT J AU FOLTZ, MF MAIENSCHEIN, JL AF FOLTZ, MF MAIENSCHEIN, JL TI AMMONIUM-PERCHLORATE PHASE-TRANSITIONS TO 26 GPA AND 700 K IN A DIAMOND-ANVIL CELL SO MATERIALS LETTERS LA English DT Article ID PRESSURE MEASUREMENT; CRYSTAL-STRUCTURE; HIGH-TEMPERATURES AB The behavior of ammonium perchlorate (AP) was studied as a function of temperature (to 693 K) and high pressure (to approximate to 26 GPa) in a diamond anvil cell (DAC). At temperatures above the known 513 K orthorhombic-to-cubic phase transition, liquid droplets were observed, and are interpreted as the onset to melting. Mid-infrared FTIR spectra of the residue showed only ammonium perchlorate. At much higher temperatures, gas formation was also seen. Rapid decomposition took place during gas formation in the presence of oxidized steel, but not in the presence of tantalum. The appearance of both liquid and gas is interpreted as corresponding to the solid-liquid and liquid-gas phase lines in the phase diagram of AP. RP FOLTZ, MF (reprint author), UNIV CALIF LAWRENCE LIVERMORE NATL LAB,POB 808,L-282,LIVERMORE,CA 94551, USA. NR 51 TC 12 Z9 12 U1 1 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-577X J9 MATER LETT JI Mater. Lett. PD SEP PY 1995 VL 24 IS 6 BP 407 EP 414 DI 10.1016/0167-577X(95)00129-8 PG 8 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA RY474 UT WOS:A1995RY47400012 ER PT J AU DAVID, SA VITEK, JM BOATNER, LA RAPPAZ, M AF DAVID, SA VITEK, JM BOATNER, LA RAPPAZ, M TI APPLICATION OF SINGLE-CRYSTALS TO ACHIEVE QUANTITATIVE UNDERSTANDING OF WELD MICROSTRUCTURES SO MATERIALS SCIENCE AND TECHNOLOGY LA English DT Article ID ELECTRON-BEAM WELDS; FLUID-FLOW AB The inter-relationship between the weld pool shape and the weld microstructural is a critical factor that determines the physical integrity and other important properties of fusion welds. In the present work, large single crystals of an Fe-15Ni-15Cr alloy have been used to increase basic understanding of the factors that influence the development of weld microstructures. Oriented ternary alloy single crystals were used to make electron beam welds along various principal directions lying in different principal crystallographic planes. Using oriented single crystals it was possible to obtain crucial microstructural information that is ordinarily lost when welds are made on normal polycrystalline specimens. This quantitative information regarding the microstructural properties of electron beam welds has provided valuable new insight into the fundamentals of the relationships between weld pool shapes and weld microstructures. A new three-dimensional geometrical analytical method has been developed to interpret the microstructural information resulting from welds made using oriented single crystals. This analytical method establishes a direct correlation between the three-dimensional weld pool shape and the dendritic microstructures that are observed in two-dimensional transverse micrographs, and can be used to reconstruct the three-dimensional weld pool shape. Single crystal multipass and single pass bicrystal welds have also been examined. Overlapping multipass single crystal welds showed remarkable reproducibility from pass to pass and replicated the microstructural patterns observed in single pass welds. The microstructure of butt welds joining two single crystals with different orientations showed a one to one correspondence with that associated with each individual crystallographic orientation, and the microstructure essentially represented a composite of two single pass microstructures corresponding to the individual crystal orientations. (C) 1995 The Institute of Materials. C1 OAK RIDGE NATL LAB, DIV SOLID STATE, OAK RIDGE, TN USA. ECOLE POLYTECH FED LAUSANNE, LAUSANNE, SWITZERLAND. RP OAK RIDGE NATL LAB, DIV MET & CERAM, POB 2008, OAK RIDGE, TN 37831 USA. RI Boatner, Lynn/I-6428-2013 OI Boatner, Lynn/0000-0002-0235-7594 NR 22 TC 5 Z9 6 U1 0 U2 5 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0267-0836 EI 1743-2847 J9 MATER SCI TECH-LOND JI Mater. Sci. Technol. PD SEP PY 1995 VL 11 IS 9 BP 939 EP 947 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA TH747 UT WOS:A1995TH74700013 ER PT J AU SEGALMAN, DJ WITKOWSKI, WR AF SEGALMAN, DJ WITKOWSKI, WR TI 2-DIMENSIONAL FINITE-ELEMENT ANALYSIS OF A POLYMER GEL DRUG-DELIVERY SYSTEM SO MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS LA English DT Article DE DRUG DELIVERY SYSTEM; FINITE ELEMENT ANALYSIS; GELS; HYDROGELS AB Hydrogels are being investigated as drug delivery mechanisms. Gels can be impregnated with a drug and then stimulated through various means to release it. Having the capability to predict the dynamic behaviour of the release process numerically would benefit the design and control of such a process. In this paper, a finite element analysis is used to simulate the dynamic behaviour of an eroding polyelectrolyte gel. The gel is impregnated in a collapsed state. It is then subjected to a higher pH environment, causing it to swell. When it has swollen to a specified extent, the gel erodes, thereby releasing the drug agent. Such gels are currently being investigated in drug delivery schemes to the colon. C1 SANDIA NATL LABS, DIV 1425, DEPT STRUCT DYNAM & VIBRAT CONTROL, ALBUQUERQUE, NM 87185 USA. NR 9 TC 7 Z9 7 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0928-4931 J9 MAT SCI ENG C-BIO S JI Mater. Sci. Eng. C-Biomimetic Supramol. Syst. PD SEP PY 1995 VL 2 IS 4 BP 243 EP 249 DI 10.1016/0928-4931(95)00103-4 PG 7 WC Materials Science, Multidisciplinary SC Materials Science GA TG131 UT WOS:A1995TG13100011 ER PT J AU LI, HX JONES, RH HIRTH, JP GELLES, DS AF LI, HX JONES, RH HIRTH, JP GELLES, DS TI EFFECT OF LOADING MODE ON THE FRACTURE-TOUGHNESS OF A FERRITIC/MARTENSITIC STAINLESS-STEEL SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID III FRACTURE; ROTOR STEEL; HYDROGEN; SPECIMENS AB The critical J integrals of mode I (J(IC)), mixed-mode I/III (J(TC)), and mode III (J(III)C) were examined for a ferritic stainless steel (F-82H) at ambient temperature. A determination of J(TC) was made using modified compact-tension specimens. Different ratios of tension/shear stress were achieved by varying the principal axis of the crack plane between 0 and 55 deg from the load line. The value for J(IIIC) was determined by means of specially designed specimens. The results showed that F-82H steel had high fracture toughness. Both J(IC) and J(IIIC) were about 500 kJ/m(2), and the mode I tearing modulus (dJ(I)/da) was about 360 (kJ/m(2))/mm. However, J(TC) and mixed-mode tearing modulus (dJ(T)/da) values varied with the crack angles and were lower than their mode I and mode III counterparts. Both the minimum J(TC) and dJ(T)/da values occurred at a crack angle between 40 and 50 deg, at which the load ratio of sigma(iii)/sigma(i) was 0.84 to 1.2, The J(min) was 240 kJ/m(2), and ratios of J(IC)/J(min) and J(IIIC)/J(min) were 2.1 and 1.9, respectively. The morphology of the fracture surfaces was consistent with the change in J(TC) and dJ(T)/da values. While the upper shelf-fracture toughness of F-82H depended on loading mode, the J(min) value remained high. Other important considerations include the effect of mixed-mode loading on the ductile-brittle-transition temperature and effects of hydrogen and irradiation on J(min). C1 PACIFIC NW LAB, STRUCT MAT RES GRP, RICHLAND, WA 99352 USA. WASHINGTON STATE UNIV, DEPT MECH & MAT ENGN, PULLMAN, WA 99164 USA. RP LI, HX (reprint author), ASSOCIATED WESTERN UNIV, DIV NW, RICHLAND, WA 99352 USA. NR 30 TC 7 Z9 7 U1 1 U2 4 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD SEP PY 1995 VL 26 IS 9 BP 2259 EP 2267 DI 10.1007/BF02671241 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA RR270 UT WOS:A1995RR27000007 ER PT J AU MAURICE, D COURTNEY, TH AF MAURICE, D COURTNEY, TH TI MODELING OF MECHANICAL ALLOYING .2. DEVELOPMENT OF COMPUTATIONAL MODELING PROGRAMS SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article AB Computational modeling programs incorporating the physics of powder deformation, fragmentation, and coalescence occurring during mechanical alloying (MA) are developed. The programs utilize the equations developed in part I of this series; equations predicting the extent of powder deformation during an effective impact in MA and those specifying criteria for powder particle fragmentation and coalescence. Two programs have been developed for these purposes. One, MAP1, considers the behavior of a single species with the option of adding dispersoids. The other, MAP2, considers two ductile species being welded to form a third, composite species. Applications of the programs to previous experimental data, and for the purpose of identifying the effect of material and process variables on alloying behavior, are provided in the article following this one. C1 US BUR MINES,ALBANY RES CTR,ALBANY,OR 97321. MICHIGAN TECHNOL UNIV,DEPT MET & MAT ENGN,HOUGHTON,MI 49931. RP MAURICE, D (reprint author), UNIV VIRGINIA,DEPT MAT SCI & ENGN,CHARLOTTESVILLE,VA 22903, USA. NR 4 TC 30 Z9 35 U1 0 U2 3 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD SEP PY 1995 VL 26 IS 9 BP 2431 EP 2435 DI 10.1007/BF02671257 PG 5 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA RR270 UT WOS:A1995RR27000023 ER PT J AU MAURICE, D COURTNEY, TH AF MAURICE, D COURTNEY, TH TI MODELING OF MECHANICAL ALLOYING .3. APPLICATIONS OF COMPUTATIONAL PROGRAMS SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article AB The computational modeling programs described in part II of this series are used in two ways. One is to compare program predictions to previous experimental data, thereby testing to some extent the utility of the programs. At this stage of their development, program ''predictions'' with respect to processing time, microstructural scale, and similar parameters are accurate to within a factor of 2 or so. Even so, the predictions offer support of the model developed in part I of this series and provide a vehicle for both model and process refinements. In addition to ''testing'' the model and the program in these manners, the effect of uncertainty in input material properties on program predictions is explored. C1 US BUR MINES,ALBANY RES CTR,ALBANY,OR 97321. MICHIGAN TECHNOL UNIV,DEPT MET & MAT ENGN,HOUGHTON,MI 49931. RP MAURICE, D (reprint author), UNIV VIRGINIA,DEPT MAT SCI & ENGN,CHARLOTTESVILLE,VA 22903, USA. NR 17 TC 39 Z9 42 U1 0 U2 3 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD SEP PY 1995 VL 26 IS 9 BP 2437 EP 2444 DI 10.1007/BF02671258 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA RR270 UT WOS:A1995RR27000024 ER PT J AU BROWN, P HILDEBRAND, A GREEN, D PAGE, D JACOBS, C REVELLE, D TAGLIAFERRI, E WACKER, J AF BROWN, P HILDEBRAND, A GREEN, D PAGE, D JACOBS, C REVELLE, D TAGLIAFERRI, E WACKER, J TI THE FALL OF THE ST ROBERT METEORITE - INTERPRETATION OF EYEWITNESS ACCOUNTS, SATELLITE DATA, SHORT-LIVED ISOTOPE ACTIVITY, AND INFRASOUND SO METEORITICS LA English DT Meeting Abstract C1 UNIV WESTERN ONTARIO, DEPT PHYS, LONDON, ON N6A 3K7, CANADA. GEOL SURVEY CANADA, NAT RESOSURCES CANADA, DIV CONTINENTAL GEOSCI, OTTAWA, ON K1A OY3, CANADA. SMITHSONIAN ASTROPHYS OBSERV, CAMBRIDGE, MA 02138 USA. FEDERAT ASTRONOMES AMATEURS QUEBEC, MONTREAL, PQ H2A 1K4, CANADA. SANDIA NATL LABS, ALBUQUERQUE, NM 87185 USA. LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA. ET SPACE SYST, CAMARILLO, CA 93012 USA. PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 492 EP 492 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800029 ER PT J AU FISKE, PS LOWE, TK AF FISKE, PS LOWE, TK TI LARGE COMPOSITIONAL VARIATIONS IN LAYERED TEKTITES OF NORTHEAST THAILAND - IMPLICATIONS FOR THE DYNAMICS OF LARGE IMPACT-INDUCED EXPLOSIONS ON EARTH SO METEORITICS LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550. STANFORD UNIV,DEPT GEOG & ENVIRONM SCI,STANFORD,CA 94305. NR 3 TC 0 Z9 0 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 504 EP 504 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800054 ER PT J AU GRAF, T CAFFEE, MW FINKEL, RC MARTI, K NISHIIZUMI, K PONGANIS, KV AF GRAF, T CAFFEE, MW FINKEL, RC MARTI, K NISHIIZUMI, K PONGANIS, KV TI CL-36 ARGON-36 EXPOSURE AGES OF CHONDRITIC METALS SO METEORITICS LA English DT Meeting Abstract C1 UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551. UNIV CALIF BERKELEY,BERKELEY,CA 94720. NR 3 TC 3 Z9 3 U1 0 U2 1 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 512 EP 512 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800069 ER PT J AU LAVIELLE, B NISHIIZUMI, K MARTI, K JEANNOT, JP CAFFEE, MW FINKEL, RC AF LAVIELLE, B NISHIIZUMI, K MARTI, K JEANNOT, JP CAFFEE, MW FINKEL, RC TI DEPTH-DEPENDENT CONCENTRATIONS OF COSMOGENIC BE-10, AL-26, CL-36, HEC, NEC, AND ARC IN THE OLD-WOMAN IRON METEORITE SO METEORITICS LA English DT Meeting Abstract C1 UNIV BORDEAUX 1,CEN BORDEAUX GRADIGNAN,CNRS,URA 451,F-33175 GRADIGNAN,FRANCE. UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720. UNIV CALIF SAN DIEGO,DEPT CHEM,LA JOLLA,CA 92093. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 3 TC 0 Z9 0 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 534 EP 534 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800117 ER PT J AU MASARIK, J REEDY, RC AF MASARIK, J REEDY, RC TI INVESTIGATION OF LOW-ENERGY NEUTRONS AND THEIR REACTION-PRODUCTS IN PLANETARY OBJECTS SO METEORITICS LA English DT Meeting Abstract C1 MAX PLANCK INST CHEM,KOSMOCHEM ABT,D-55020 MAINZ,GERMANY. LOS ALAMOS NATL LAB,ASTROPHYS & RADIAT MEASUREMENTS GRP,LOS ALAMOS,NM 87545. NR 11 TC 0 Z9 0 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 541 EP 542 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800134 ER PT J AU NEMTCHINOV, IV SPALDING, RE JACOBS, C TAGLIAFERRI, E ARTEMEVA, NA GOLUB, AP KOSAREV, IB POPOVA, OP SVETTSOV, VV SHUVALOV, VV AF NEMTCHINOV, IV SPALDING, RE JACOBS, C TAGLIAFERRI, E ARTEMEVA, NA GOLUB, AP KOSAREV, IB POPOVA, OP SVETTSOV, VV SHUVALOV, VV TI ASSESSMENT OF THE LARGE METEOROID CHARACTERISTICS FROM THE LIGHT CURVES OBTAINED BY SATELLITE AND GROUNDBASED NETWORKS SO METEORITICS LA English DT Meeting Abstract C1 INST DYNAM GEOSPHERES,MOSCOW 117979,RUSSIA. SANDIA NATL LABS,ALBUQUERQUE,NM 87521. ET SPACE SYST,CAMARILLO,CA 93012. RI Popova, Olga/K-1885-2012 NR 5 TC 2 Z9 2 U1 0 U2 1 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 556 EP 556 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800161 ER PT J AU NISHIIZUMI, K FINKEL, RC CAFFEE, MW AF NISHIIZUMI, K FINKEL, RC CAFFEE, MW TI COSMOGENIC RADIONUCLIDES IN DONGLING AND NANTAN IRON-METEORITES - CASE OF HEAVILY SHIELDED CHINESE TWINS SO METEORITICS LA English DT Meeting Abstract ID NUCLIDES C1 UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 5 TC 6 Z9 6 U1 0 U2 1 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 556 EP 557 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800163 ER PT J AU REEDY, RC MASARIK, J AF REEDY, RC MASARIK, J TI PRODUCTION-RATES OF COSMOGENIC NUCLIDES DEEP IN THE MOON SO METEORITICS LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,ASTROPHYS & RADIAT MEASUREMENTS GRP,LOS ALAMOS,NM 87545. MAX PLANCK INST CHEM,KOSMOCHEM ABT,D-55020 MAINZ,GERMANY. NR 4 TC 1 Z9 1 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 564 EP 565 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800181 ER PT J AU ROMANEK, CS THOMAS, KL GIBSON, EK MCKAY, DS SOCKI, RA AF ROMANEK, CS THOMAS, KL GIBSON, EK MCKAY, DS SOCKI, RA TI CARBON-BEARING AND SULFUR-BEARING MINERALS IN THE MARTIAN METEORITE ALLAN-HILLS-84001 SO METEORITICS LA English DT Meeting Abstract ID CHEMISTRY C1 UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. LOCKHEED ENGN & SCI CO,HOUSTON,TX 77058. NR 7 TC 4 Z9 4 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 567 EP 568 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800186 ER PT J AU SISTERSON, JM BEVERDING, A KIM, KJ ENGLERT, PAJ JULL, AJT DONAHUE, DJ CLOUDT, S CASTANEDA, C VINCENT, J CAFFEE, MW OSAZUWA, CO REEDY, RC AF SISTERSON, JM BEVERDING, A KIM, KJ ENGLERT, PAJ JULL, AJT DONAHUE, DJ CLOUDT, S CASTANEDA, C VINCENT, J CAFFEE, MW OSAZUWA, CO REEDY, RC TI CROSS-SECTIONS NEEDED FOR THE INTERPRETATION OF LONG-LIVED AND SHORT-LIVED COSMOGENIC NUCLIDE PRODUCTION IN EXTRATERRESTRIAL MATERIALS SO METEORITICS LA English DT Meeting Abstract C1 HARVARD UNIV, HARVARD CYCLOTRON LAB, CAMBRIDGE, MA 02138 USA. SAN JOSE STATE UNIV, DEPT CHEM, SAN JOSE, CA 92192 USA. UNIV ARIZONA, NATL SCI FDN, ARIZONA ACCELERATOR MASS SPECTROMETRY FACIL, TUCSON, AZ 85721 USA. UNIV CALIF DAVIS, CROCKER NUCL LAB, DAVIS, CA 95616 USA. UNIV BRITISH COLUMBIA, TRIUMF, VANCOUVER, BC V6T 2A3, CANADA. LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. LOS ALAMOS NATL LAB, GRP NIS2, LOS ALAMOS, NM 87545 USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 579 EP 580 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800210 ER PT J AU SOCKI, RA GIBSON, EK ROMANEK, CS AF SOCKI, RA GIBSON, EK ROMANEK, CS TI STABLE-ISOTOPE ENRICHMENT OF CARBONATE FROM THE MARTIAN METEORITE ALLAN-HILLS-84001 - TEST OF A HYPOTHESIS AT WRIGHT VALLEY, ANTARCTICA SO METEORITICS LA English DT Meeting Abstract ID CALCITE C1 LOCKHEED ENGN & SCI CO,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. NR 10 TC 1 Z9 1 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 580 EP 581 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800212 ER PT J AU THOMAS, KL CLEMETT, SJ ROMANEK, CS MACHELING, CR GIBSON, EK MCKAY, DS SCORE, R ZARE, RN AF THOMAS, KL CLEMETT, SJ ROMANEK, CS MACHELING, CR GIBSON, EK MCKAY, DS SCORE, R ZARE, RN TI POLYCYCLIC AROMATIC-HYDROCARBONS IN THE MARTIAN (SNC) METEORITE ALLAN-HILLS-84001 - HYDROCARBONS FROM MARS, TERRESTRIAL CONTAMINANTS, OR BOTH SO METEORITICS LA English DT Meeting Abstract C1 LOCKHEED MARTIN,HOUSTON,TX 77058. STANFORD UNIV,DEPT CHEM,STANFORD,CA 94305. UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RI Zare, Richard/A-8410-2009 NR 6 TC 9 Z9 9 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 587 EP 587 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800224 ER PT J AU WOLF, SF WANG, MS DODD, RT LIPSCHUTZ, ME AF WOLF, SF WANG, MS DODD, RT LIPSCHUTZ, ME TI A 2ND H-CHONDRITE STREAM OF FALLS SO METEORITICS LA English DT Meeting Abstract C1 PURDUE UNIV,W LAFAYETTE,IN 47907. ARGONNE NATL LAB,ARGONNE,IL 60439. SUNY STONY BROOK,STONY BROOK,NY 11794. NR 9 TC 4 Z9 4 U1 0 U2 0 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD SEP PY 1995 VL 30 IS 5 BP 601 EP 601 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RR518 UT WOS:A1995RR51800252 ER PT J AU Henon, BK Coghlan, E AF Henon, BK Coghlan, E TI Installing IBM semiconductor process tools at Sandia National Laboratories SO MICRO LA English DT Article C1 SANDIA NATL LABS,FACIL DEV CTR,LIVERMORE,CA 94550. RP Henon, BK (reprint author), ARC MACHINES,PACOIMA,CA 91331, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU CANON COMMUNICATIONS INC PI SANTA MONICA PA 3340 OCEAN PARK BLVD, SUITE 1000, SANTA MONICA, CA 90405 SN 1081-0595 J9 MICRO JI Micro PD SEP PY 1995 VL 13 IS 8 BP 45 EP 50 PG 6 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Condensed Matter SC Engineering; Science & Technology - Other Topics; Materials Science; Physics GA TU345 UT WOS:A1995TU34500026 ER PT J AU WITCOMB, MJ DAHMEN, U AF WITCOMB, MJ DAHMEN, U TI METHOD FOR JET POLISHING 2-PHASE MATERIALS SO MICROSCOPY RESEARCH AND TECHNIQUE LA English DT Article DE ELECTROLYTIC POLISHING; THIN FOILS; SPECIMEN PREPARATION; TEM; DUAL-PHASE MATERIALS ID CR; MORPHOLOGY; TEM; CU AB A two-stage jet polishing technique is described which, utilising the effects of the characteristic current-voltage behaviour of electropolishing solutions, can produce excellent TEM foils of relatively coarse two-phase materials. (C) 1995 Wiley-Liss, Inc. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,NATL CTR ELECTRON MICROSCOPY,BERKELEY,CA 94720. RP WITCOMB, MJ (reprint author), UNIV WITWATERSRAND,ELECTRON MICROSCOPE UNIT,PRIVATE BAG 3,WITWATERSRAND 2050,SOUTH AFRICA. NR 17 TC 0 Z9 0 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 1059-910X J9 MICROSC RES TECHNIQ JI Microsc. Res. Tech. PD SEP 1 PY 1995 VL 32 IS 1 BP 70 EP 74 DI 10.1002/jemt.1070320107 PG 5 WC Anatomy & Morphology; Biology; Microscopy SC Anatomy & Morphology; Life Sciences & Biomedicine - Other Topics; Microscopy GA RR515 UT WOS:A1995RR51500006 PM 8573775 ER PT J AU LAUF, RJ BIBLE, DW FATHI, Z JOHNSON, AC AF LAUF, RJ BIBLE, DW FATHI, Z JOHNSON, AC TI MICROWAVE-HEATING SYSTEMS EMPLOY HIGH-POWER TWTS SO MICROWAVES & RF LA English DT Article RP LAUF, RJ (reprint author), OAK RIDGE NATL LAB,POB 2008,BLDG 4508,OAK RIDGE,TN 37831, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PENTON PUBL INC PI CLEVELAND PA 1100 SUPERIOR AVE, CLEVELAND, OH 44114 SN 0745-2993 J9 MICROWAVES RF JI Microw. RF PD SEP PY 1995 VL 34 IS 13 BP 81 EP & PG 0 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA RW024 UT WOS:A1995RW02400009 ER PT J AU NORTON, GA PETERS, RE JACOBSON, RA AF NORTON, GA PETERS, RE JACOBSON, RA TI FEASIBILITY OF USING X-RAY-DIFFRACTION FOR ONLINE ANALYSIS OF GYPSUM DURING WALL BOARD MANUFACTURING SO MINERALS ENGINEERING LA English DT Note DE GYPSUM; X-RAY DIFFRACTION; ONLINE ANALYSIS AB A preliminary study was conducted to determine the feasibility of developing an on-line x-ray diffraction (XRD) monitor to determine gypsum during wall board manufacturing. Samples of bassanite (CaSO4 . 1/2H(2)O) containing 0, 1, 3, and 5% gypsum (CaSO4 . 2H(2)O) were analyzed in the laboratory using an experimental on-line XRD monitor and a conventional x-ray diffractometer. Results of this study indicate that the development of a gypsum monitor is technically feasible. When sample packing was used, gypsum was detected in all of the samples containing added gypsum and the sensitivity was adequate to differentiate between each of the gypsum concentrations. Without sample packing, 1% gypsum could not be detected under the analytical conditions employed. The precision was reasonably good for these exploratory tests, with relative standard deviations ranging from 10-30%. Precision can probably be improved through instrument modifications. Once developed an on-line gypsum monitor is anticipated to cost on the order of $75,000. RP NORTON, GA (reprint author), IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011, USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0892-6875 J9 MINER ENG JI Miner. Eng. PD SEP PY 1995 VL 8 IS 9 BP 1069 EP 1074 DI 10.1016/0892-6875(95)00068-2 PG 6 WC Engineering, Chemical; Mineralogy; Mining & Mineral Processing SC Engineering; Mineralogy; Mining & Mineral Processing GA RT789 UT WOS:A1995RT78900010 ER PT J AU HUANG, HC GHONIEM, NM WONG, JK BASKES, MI AF HUANG, HC GHONIEM, NM WONG, JK BASKES, MI TI MOLECULAR-DYNAMICS DETERMINATION OF DEFECT ENERGETICS IN BETA-SIC USING 3 REPRESENTATIVE EMPIRICAL POTENTIALS SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING LA English DT Article ID EMBEDDED-ATOM-METHOD; SILICON-CARBIDE; SELF-DIFFUSION; INTERATOMIC POTENTIALS; NATIVE DEFECTS; METHOD MODEL; FCC METALS; SURFACES; SIMULATION; IMPURITIES AB The determination of formation and migration energies of point and clustered defects in SiC is of critical importance to a proper understanding of atomic phenomena in a wide range of applications. We present here calculations of formation and migration energies of a number of point and clustered defect configurations. A newly developed set of parameters for the modified embedded-atom method (MEAM) is presented. Detailed molecular dynamics calculations of defect energetics using three representative potentials, namely the Pearson potential, the Tersoff potential and the MEAM, have been performed. Results of the calculations are compared to first-principles calculations and to available experimental data. The results are analysed in terms of developing a consistent empirical interatomic potential and are used to discuss various atomic migration processes. C1 UNIV CALIF LOS ANGELES, DEPT MECH AEROSP & NUCL ENGN, LOS ANGELES, CA 90024 USA. SANDIA NATL LABS, LIVERMORE, CA 94551 USA. RI Huang, Hanchen/A-9323-2008; Ghoniem, Nasr/A-9799-2008 NR 54 TC 86 Z9 87 U1 2 U2 14 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0965-0393 EI 1361-651X J9 MODEL SIMUL MATER SC JI Model. Simul. Mater. Sci. Eng. PD SEP PY 1995 VL 3 IS 5 BP 615 EP 627 DI 10.1088/0965-0393/3/5/003 PG 13 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA RW456 UT WOS:A1995RW45600003 ER PT J AU GONG, XL RADEBAUGH, CA GEISS, GK SIMON, MN PAULE, MR AF GONG, XL RADEBAUGH, CA GEISS, GK SIMON, MN PAULE, MR TI SITE-DIRECTED PHOTO-CROSS-LINKING OF RIBOSOMAL-RNA TRANSCRIPTION INITIATION-COMPLEXES SO MOLECULAR AND CELLULAR BIOLOGY LA English DT Article ID RNA POLYMERASE-I; MINOR-GROOVE; CRYSTAL-STRUCTURE; TATA ELEMENT; DNA; PROTEIN; TBP; PROMOTER; BINDING; GENE AB Site-specific photo-cross-linking of the rRNA committed transcription complex was carried out by using 5-[N-(p-azidobenzoyl)-3-aminoallyl]-dUMP-derivatized promoter DNA. Putative TAF(1)s of 145, 99, 96, and 91 kDa, as well as TATA-binding protein (TBP), were found to specifically photo-cross-link to different positions along the promoter. These had been identified as potential subunits of the fundamental transcription initiation factor TIF-IB (also known as SL1, factor D, and TFID) from Acanthamoeba castellanii by purification to apparent homogeneity, No other polypeptides attributable to the rRNA architectural transcription factor UBF were identified, suggesting that this protein is not part of the committed complex, Scanning transmission electron microscopy of the complexes was used to estimate the mass of the complex and the contour length of the DNA in the complex. This showed that a single molecule of TIF-IB is in each committed complex and that the DNA is not looped around the protein, as would be expected if UBF were in the complex, A circular permutation analysis of DNA bending resulting from TIF-IB binding revealed a 45 +/- 3.1 degrees (n = 14) bend centered 23 bp upstream of the transcription initiation site, This degree of bending and the position of the bend relative to the site of TBP photo-cross-linking are consistent with earlier data showing that the TBP TATA box-binding domain is not utilized in the assembly of the rRNA committed complex (C. A. Radebaugh, J. L. Matthews, G. K. Geiss, F. Liu, J. Wong, E. Bateman, S. Camier, A. Sentenac, and M. R. Paule, Mol. Cell. Biol. 14:597-605, 1994). C1 COLORADO STATE UNIV,DEPT BIOCHEM & MOLEC BIOL,FT COLLINS,CO 80523. BROOKHAVEN NATL LAB,DEPT BIOL,UPTON,NY 11973. FU NCRR NIH HHS [RR01777]; NIGMS NIH HHS [GM22580] NR 34 TC 17 Z9 17 U1 0 U2 0 PU AMER SOC MICROBIOLOGY PI WASHINGTON PA 1325 MASSACHUSETTS AVENUE, NW, WASHINGTON, DC 20005-4171 SN 0270-7306 J9 MOL CELL BIOL JI Mol. Cell. Biol. PD SEP PY 1995 VL 15 IS 9 BP 4956 EP 4963 PG 8 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA RQ134 UT WOS:A1995RQ13400034 PM 7651413 ER PT J AU CARLILE, CJ DURAND, R FULLAGAR, WK REYNOLDS, PA TROUW, F WHITE, JW AF CARLILE, CJ DURAND, R FULLAGAR, WK REYNOLDS, PA TROUW, F WHITE, JW TI INELASTIC NEUTRON-SCATTERING AND SUPERCONDUCTIVITY OF RB3C60(NH3)(X) SO MOLECULAR PHYSICS LA English DT Article ID ROTATIONAL EXCITATIONS; RAMAN-SCATTERING; SOLID-SOLUTIONS; AMMONIA; TEMPERATURE; FULLERENES; SPECTRUM; K3C60; C60; INTERCALATION AB Ammonia addition to Rb3C60 forms compounds Rb3C60(NH3)(x) whose diffraction signatures indicate structures all derived from a basic body centred unit cell with a C-60... C-60 distance averaging 10.42(5) Angstrom. The superconductivity above 10 K of these compounds rapidly decreases with x but despite this, there are few changes in the C-60 internal mode density of states compared to Rb3C60 and quenching of the H-g and T-1u modes up to about 80 meV is still strong. The repacking of the face centred cubic Rb3C60 cell and loss of superconductivity occur at ammonia compositions as low as about one mole per C-60, resulting in disordered or lower symmetry structures. To probe this and the newly introduced low frequency excitations, the ammonia sorption potential has been studied by high resolution neutron inelastic scattering and the analysis is consistent with a broad range of hindering barriers to rotation about the Rb-NH3 threefold axis. In this range of potentials the distribution of rotational tunnelling excitations peaks at about +/-220 mu eV at 4 K. The densities of librational states has been assigned for both NH3 and ND3 intercalated materials and the threefold hindering potential parameters for the average site determined. C1 AUSTRALIAN NATL UNIV,RES SCH CHEM,CANBERRA,ACT,AUSTRALIA. ARGONNE NATL LAB,INPS,ARGONNE,IL 60439. RP CARLILE, CJ (reprint author), RUTHERFORD APPLETON LAB,ISIS PULSED NEUTRON FACIL,OXFORD OX11 0QX,ENGLAND. NR 50 TC 8 Z9 8 U1 0 U2 3 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0026-8976 J9 MOL PHYS JI Mol. Phys. PD SEP PY 1995 VL 86 IS 1 BP 19 EP 37 DI 10.1080/00268979500101821 PG 19 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RX358 UT WOS:A1995RX35800002 ER PT J AU RENNO, NO WILLIAMS, ER AF RENNO, NO WILLIAMS, ER TI QUASI-LAGRANGIAN MEASUREMENTS IN CONVECTIVE BOUNDARY-LAYER PLUMES AND THEIR IMPLICATIONS FOR THE CALCULATION OF CAPE SO MONTHLY WEATHER REVIEW LA English DT Article ID ATMOSPHERIC SURFACE-LAYER; TROPICAL ATMOSPHERE; TEMPERATURE AB Measurements were made to determine the level of origin of air parcels participating in natural convection. Lagrangian measurements of conservative variables are ideal for this purpose. A simple remotely piloted vehicle was developed to make in situ measurements of pressure, temperature, and humidity in the convective boundary layer. These quasi-lagrangian measurements clearly show that convective plumes originate in the superadiabatic surface layer. The observed boundary layer plumes have virtual temperature excesses of about 0.4 K in a tropical region (Orlando, Florida) and of about 1.5 K in a desert region (Albuquerque, New Mexico). The water vapor contribution to parcel buoyancy was appreciable in Orlando but in Albuquerque was insignificant. These observations indicate that convective available potential energy should be determined by adiabatically lifting air parcels from the surface layer, at screen level. C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA. MIT,DEPT EARTH ATMOSPHER & PLANETARY SCI,CAMBRIDGE,MA. NR 21 TC 16 Z9 17 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0027-0644 J9 MON WEATHER REV JI Mon. Weather Rev. PD SEP PY 1995 VL 123 IS 9 BP 2733 EP 2742 DI 10.1175/1520-0493(1995)123<2733:QLMICB>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA RR513 UT WOS:A1995RR51300007 ER PT J AU MALFATTI, MA SHEN, NH WU, RW TURTELTAUB, KW FELTON, JS AF MALFATTI, MA SHEN, NH WU, RW TURTELTAUB, KW FELTON, JS TI A CORRELATION OF SALMONELLA MUTAGENICITY WITH DNA-ADDUCTS INDUCED BY THE COOKED-FOOD MUTAGEN 2-AMINO-1-METHYL-6-PHENYLIMIDAZO[4,5-B]PYRIDINE SO MUTAGENESIS LA English DT Article ID CHEMICAL CARCINOGENESIS; HETEROCYCLIC AMINES; ESCHERICHIA-COLI; MICROSOME TEST; 300 CHEMICALS; TYPHIMURIUM; CELLS; ASSAY; IDENTIFICATION; BACTERIA AB The correlation of bacterial mutagenicity with DNA adducts from the heterocyclic amine cooked-food mutagen 2-aminol-methyl-6-phenylimidazo[4,5-b]pyridine (PhLP) was investigated in Salmonella typhimurium strains TA98 (uvrB deficient) and TA1978 (uvrB proficient), Bacterial cells were exposed to PhIP using a modification of the Ames/ Salmonella microsuspension assay, Half of the cells, generated from a 90 min pre-incubation and washing, were plated for revertant formation while the remaining half was subjected to DNA adduct analysis via P-32-postlabeling. In TA98, DNA adducts were detected at an RAL (relative adduct labeling) of 10 x 10(-7) and 21 X 10(-7) at PhIP concentrations of 5.5 and 17 mu M, respectively, This corresponded to 28.8 and 20.9 adducts/revertant, respectively, These values were based on the assumption that only four repeating GC bases within a 75 DNA base region is the gene target site for PhIP induced mutations, In TA1978, no revertants above background were detected at any concentration of PhIP tested, DNA adducts, however, were detected at 11 x 10(-7) and 21 x 10(-7) adducts per nucleotide at 223 and 1116 mu M PhIP, respectively, The lack of detectable revertants, but the presence of DNA adducts, suggests pre-mutational lesions did occur during the 90 min pre-incubation, Presumably, when the S9 activating system and PhIP were removed (via washing with phosphate buffered saline) prior to plating, the cells containing an intact uvrB repair system repaired the lesions during the incubation time on the plates. In conclusion, the induction of revertants by adducts appears quite efficient, as similar to 25 adducts are required for one mutational event in the excision repair deficient bacteria. C1 LAWRENCE LIVERMORE NATL LAB,BIOL & BIOTECHNOL RES PROGRAM,LIVERMORE,CA 94551. FU NCI NIH HHS [CA55861] NR 42 TC 16 Z9 16 U1 0 U2 1 PU OXFORD UNIV PRESS UNITED KINGDOM PI OXFORD PA WALTON ST JOURNALS DEPT, OXFORD, ENGLAND OX2 6DP SN 0267-8357 J9 MUTAGENESIS JI Mutagenesis PD SEP PY 1995 VL 10 IS 5 BP 425 EP 431 DI 10.1093/mutage/10.5.425 PG 7 WC Genetics & Heredity; Toxicology SC Genetics & Heredity; Toxicology GA RX880 UT WOS:A1995RX88000008 PM 8544756 ER PT J AU THOMPSON, LH JEGGO, PA AF THOMPSON, LH JEGGO, PA TI NOMENCLATURE OF HUMAN GENES INVOLVED IN IONIZING-RADIATION SENSITIVITY SO MUTATION RESEARCH-DNA REPAIR LA English DT Article DE GENE NOMENCLATURE; IONIZING RADIATION SENSITIVITY ID CHINESE-HAMSTER CELLS; STRAND BREAK-REPAIR; HUMAN CHROMOSOME-19; MOLECULAR-CLONING; COMPLEMENTATION; LINES; MUTANTS; DAMAGE; XRCC1 C1 UNIV SUSSEX,MRC,CELL MUTAT UNIT,BRIGHTON BN1 9RR,E SUSSEX,ENGLAND. RP THOMPSON, LH (reprint author), LAWRENCE LIVERMORE NATL LAB,BIOL & BIOTECHNOL RES PROGRAM,L452,POB 808,LIVERMORE,CA 94551, USA. NR 34 TC 52 Z9 52 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-8777 J9 MUTAT RES-DNA REPAIR JI Mutat. Res.-DNA Repair PD SEP PY 1995 VL 337 IS 2 BP 131 EP 134 DI 10.1016/0921-8777(95)00018-F PG 4 WC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology SC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology GA TC165 UT WOS:A1995TC16500006 PM 7565861 ER PT J AU KALINOWSKI, DP LARIMER, FW PLEWA, MJ AF KALINOWSKI, DP LARIMER, FW PLEWA, MJ TI ANALYSIS OF SPONTANEOUS FRAMESHIFT MUTATIONS IN REV1 AND REV1-1 STRAINS OF SACCHAROMYCES-CEREVISIAE SO MUTATION RESEARCH-FUNDAMENTAL AND MOLECULAR MECHANISMS OF MUTAGENESIS LA English DT Article DE SPONTANEOUS FRAMESHIFT MUTATIONS; SACCHAROMYCES CERVISIAE; MUTATION SPECTRUM ID POLYMERASE CHAIN-REACTION; STRAND GAP REPAIR; DNA-POLYMERASE; ENZYMATIC AMPLIFICATION; SUBSTITUTION MUTATIONS; SYNTHESIS ERRORS; YEAST; MUTAGENESIS; INVITRO; SEQUENCES AB Frameshift mutations occur by a number of mechanisms. To better understand the nature of these mechanisms, we determined the DNA sequence changes of 232 independent, spontaneous frameshift mutations in the HIS4 gene of REV1 and rev1-1 strains of Saccharomyces cerevisiae. All frameshift mutants were selected based on their ability to revert the +1 frameshift mutation his4-38. DNA sequence information was recovered using two approaches - the double-strand gap repair of plasmid pMP4, and the polymerase chain reaction (PCR). Using these techniques, saturated mutation spectra for the spontaneous reversion of his4-38 were generated. The most frequently occurring mutational events in both strains were -1 frameshifts, but +2 frameshifts, larger deletions, larger insertions and more complex mutations were also observed. Between the REV1 and rev1-1 strains, we noticed a significant difference in the distribution of -1 frameshift mutations. In addition, while for -1 frameshift events there was no significant difference between the reversion spectra determined by double-strand gap repair or PCR, there was a surprisingly significant difference between the types of frameshift mutations recovered by double-strand gap repair (only -1 frameshifts and one +2 frameshift), and those recovered using PCR (-1 frameshifts, +2 frameshifts, larger deletions and insertions, and more complex mutations). This difference may reflect a selectional mechanism inherent in double-strand break repair that avoids chromosomal sequences which include complex alterations. C1 DAEMEN COLL,DEPT NAT SCI,AMHERST,NY 14226. OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831. UNIV ILLINOIS,INST ENVIRONM STUDIES,URBANA,IL 61801. NR 50 TC 10 Z9 10 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0027-5107 J9 MUTAT RES-FUND MOL M JI Mutat. Res.-Fundam. Mol. Mech. Mutagen. PD SEP PY 1995 VL 331 IS 1 BP 149 EP 159 DI 10.1016/0027-5107(95)00064-P PG 11 WC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology SC Biotechnology & Applied Microbiology; Genetics & Heredity; Toxicology GA RU973 UT WOS:A1995RU97300014 PM 7666862 ER PT J AU PASZTY, C MOHANDAS, N STEVENS, ME LORING, JF LIEBHABER, SA BRION, CM RUBIN, EM AF PASZTY, C MOHANDAS, N STEVENS, ME LORING, JF LIEBHABER, SA BRION, CM RUBIN, EM TI LETHAL ALPHA-THALASSEMIA CREATED BY GENE TARGETING IN MICE AND ITS GENETIC RESCUE SO NATURE GENETICS LA English DT Article ID HUMAN BETA-S; TRANSGENIC MOUSE MODEL; LONG-TERM SURVIVAL; GLOBIN GENES; HOMOZYGOUS ALPHA-THALASSEMIA-1; INTERVENING SEQUENCES; HIGH EXPRESSION; HEMOGLOBIN; POLYMERIZATION; PROTOONCOGENE AB Mutations at the alpha-globin locus are the most common class of mutations in humans, with deletion of all four adult alpha-globin genes resulting in the perinatal lethal condition haemoglobin Bart's hydrops fetalis. Using gene targeting in mice, we have deleted a 16 kilobase region encompassing both adult alpha-globin genes. Animals homozygous for this deletion become hydropic and die late in gestation mimicking humans with hydrops fetalis. Introduction of a human alpha-globin transgene rescued these animals from perinatal death thus demonstrating the utility of this murine model in the development of cellular and gene based approaches for treating this human genetic disease. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CTR HUMAN GENOME,BERKELEY,CA 94720. GENPHARM INT,MT VIEW,CA 94043. UNIV PENN,SCH MED,HOWARD HUGHES MED INST,PHILADELPHIA,PA 19104. NR 35 TC 57 Z9 58 U1 0 U2 1 PU NATURE PUBLISHING CO PI NEW YORK PA 345 PARK AVE SOUTH, NEW YORK, NY 10010-1707 SN 1061-4036 J9 NAT GENET JI Nature Genet. PD SEP PY 1995 VL 11 IS 1 BP 33 EP 39 DI 10.1038/ng0995-33 PG 7 WC Genetics & Heredity SC Genetics & Heredity GA RR728 UT WOS:A1995RR72800012 PM 7550311 ER PT J AU EBERLING, JL ROBERTS, JA DEMANINCOR, DJ BRENNAN, KM HANRAHAN, SM VANBROCKLIN, HF ROOS, MS JAGUST, WJ AF EBERLING, JL ROBERTS, JA DEMANINCOR, DJ BRENNAN, KM HANRAHAN, SM VANBROCKLIN, HF ROOS, MS JAGUST, WJ TI PET STUDIES OF CEREBRAL GLUCOSE-METABOLISM IN CONSCIOUS RHESUS MACAQUES SO NEUROBIOLOGY OF AGING LA English DT Article DE PET; AGING; RHESUS MACAQUES; GLUCOSE METABOLISM; TEMPORAL CORTEX; MONKEY ID AGE-RELATED-CHANGES; NEUROFIBRILLARY TANGLE DENSITIES; ALZHEIMERS-DISEASE; BLOOD-FLOW; SENILE PLAQUES; MACACA-MULATTA; HIPPOCAMPAL-FORMATION; PATHOLOGICAL-CHANGES; COMPUTED-TOMOGRAPHY; OXYGEN-CONSUMPTION AB A growing body of evidence suggests that rhesus macaques may be a good model of human brain aging. We used positron emission tomography (PET) and F-18-fluorodeoxyglucose (FDG) to measure regional cerebral metabolic rates for glucose (rCMRglc) in young and aged rhesus macaques to determine if age-related decreases, such as those reported in humans, also occur in macaques. Whereas the aged animals had lower metabolic rates in every brain region studied, the largest differences were in left temporal cortex. The largest differences were also observed in left temporal cortex when relative rCMRglc values were used. Both rCMRglc and relative rCMRgle were marked by substantial individual variation within the aged group. This variation may parallel the variation observed in behavioral studies. Future studies that include both PET and behavioral measures should help determine if there is a relationship between age-related changes in rCMRgle and behavior. C1 UNIV CALIF DAVIS,DEPT NEUROL,DAVIS,CA 95616. UNIV CALIF DAVIS,CALIF REG PRIMATE RES CTR,DAVIS,CA 95616. RP EBERLING, JL (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CTR FUNCT IMAGING,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. FU NCRR NIH HHS [RR00169]; NIA NIH HHS [AG07793] NR 65 TC 18 Z9 19 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0197-4580 J9 NEUROBIOL AGING JI Neurobiol. Aging PD SEP-OCT PY 1995 VL 16 IS 5 BP 825 EP 832 DI 10.1016/0197-4580(95)00085-S PG 8 WC Geriatrics & Gerontology; Neurosciences SC Geriatrics & Gerontology; Neurosciences & Neurology GA RW793 UT WOS:A1995RW79300013 PM 8532117 ER PT J AU NORBY, RJ WULLSCHLEGER, SD GUNDERSON, CA NIETCH, CT AF NORBY, RJ WULLSCHLEGER, SD GUNDERSON, CA NIETCH, CT TI INCREASED GROWTH EFFICIENCY OF QUERCUS-ALBA TREES IN A CO2-ENRICHED ATMOSPHERE SO NEW PHYTOLOGIST LA English DT Article DE CARBON DIOXIDE; GLOBAL CHANGE; GROWTH EFFICIENCY; OPEN-TOP CHAMBERS; QUERCUS ALBA L (WHITE OAK) ID CO2 ENRICHMENT; CARBON-DIOXIDE; ELEVATED CO2; RESPONSES; SEEDLINGS; FORESTS; SOIL AB Forests have a prominent role in the global carbon cycle, but their response to a changing atmosphere cannot be measured directly. Experimental observations of small trees in CO2-enriched atmospheres must be interpreted carefully if they are to be relevant to the potential responses of forest trees. We grew white oak (Quercus alba L.) saplings for four complete growing seasons in open-top chambers with different partial pressures of atmospheric CO2. White oak saplings produced 58% more dry mass in 50 Pa CO2 and 135% more in 65 Pa, compared with plants in ambient (35 Pa) CO2. Although this result might suggest a substantial potential for increased carbon storage in forests, the large difference in growth rate could be attributed to a stimulation of growth very early in the experiment. There was not a sustained effect of CO2 on relative growth rate after the first year, and the increased absolute growth rate could persist only so long as leaf area could increase, a condition that would not occur indefinitely in a forest. Nevertheless, annual stem wood production per unit area (growth efficiency) was 37% greater in elevated CO2. This increase in growth efficiency, a response that is consistent across diverse studies, implies a potential increase in carbon sequestration by forests, subject to critical assumptions about forest canopy development in a CO2-enriched atmosphere. C1 KALAMAZOO COLL,KALAMAZOO,MI 49007. RP NORBY, RJ (reprint author), OAK RIDGE NATL LAB,DIV ENVIRONM SCI,POB 2008,OAK RIDGE,TN 37831, USA. RI Wullschleger, Stan/B-8297-2012; Norby, Richard/C-1773-2012 OI Wullschleger, Stan/0000-0002-9869-0446; Norby, Richard/0000-0002-0238-9828 NR 20 TC 69 Z9 73 U1 0 U2 8 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0028-646X J9 NEW PHYTOL JI New Phytol. PD SEP PY 1995 VL 131 IS 1 BP 91 EP 97 DI 10.1111/j.1469-8137.1995.tb03058.x PG 7 WC Plant Sciences SC Plant Sciences GA RX679 UT WOS:A1995RX67900008 ER PT J AU Springer, CS AF Springer, CS TI What's in a name? SO NMR IN BIOMEDICINE LA English DT Editorial Material C1 SUNY STONY BROOK,DEPT CHEM,STONY BROOK,NY 11794. RP Springer, CS (reprint author), BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973, USA. OI Springer, Charles/0000-0002-5966-2135 NR 6 TC 1 Z9 1 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0952-3480 J9 NMR BIOMED JI NMR Biomed. PD SEP PY 1995 VL 8 IS 6 BP 233 EP 234 PG 2 WC Biophysics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy SC Biophysics; Radiology, Nuclear Medicine & Medical Imaging; Spectroscopy GA UG576 UT WOS:A1995UG57600001 PM 8732178 ER PT J AU RESTREPO, JM BONA, JL AF RESTREPO, JM BONA, JL TI 3-DIMENSIONAL MODEL FOR THE FORMATION OF LONGSHORE SAND STRUCTURES ON THE CONTINENTAL-SHELF SO NONLINEARITY LA English DT Article ID SEA WAVES; BARS; STABILITY; RIPPLES; ORIGIN; RIDGES AB A model is proposed for the formation and evolution of three-dimensional sedimentary structures such as longshore sand ridges on the continental shelf in water deeper than that of the shoaling region. Owing to the striking similarity between the bar spacing and the length scales in which interactions among the most energetic modes of shallow water waves take place, we argue that these bars are formed slowly by Rows in the turbulent boundary layer generated by weakly nonlinear, dispersive waves. The model is based on the interaction between surficial or internal, weakly nonlinear shallow water waves, having weak spanwise spatial dependence, and the bottom topography. while such underwater structures are not the result of a single formative agent, it is argued that the mechanism proposed in this study does contribute significantly to their generation and evolution. C1 PENN STATE UNIV,DEPT MATH,UNIVERSITY PK,PA 16802. RP RESTREPO, JM (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,9700 S CASS AVE,ARGONNE,IL 60439, USA. OI Restrepo, Juan/0000-0003-2609-2882 NR 64 TC 12 Z9 12 U1 0 U2 2 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0951-7715 J9 NONLINEARITY JI Nonlinearity PD SEP PY 1995 VL 8 IS 5 BP 781 EP 820 DI 10.1088/0951-7715/8/5/008 PG 40 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA RX987 UT WOS:A1995RX98700008 ER PT J AU FARRAR, CR DUFFEY, TA RENICK, DH AF FARRAR, CR DUFFEY, TA RENICK, DH TI SIMPLIFIED METHOD FOR EVALUATING THE SEISMIC BUCKLING CAPACITY OF UNSTIFFENED STEEL CONTAINMENT STRUCTURES SO NUCLEAR ENGINEERING AND DESIGN LA English DT Article AB A simplified method is presented for evaluating the seismic buckling capacity of unstiffened, free-standing steel containment structures. The method is consistent with current US Nuclear Regulatory Commission seismic design standards and with containment buckling interaction equations given in the American Society of Mechanical Engineers Boiler and Pressure Vessel Code which includes the influence of geometrical imperfections of the shell on buckling. Stresses to be considered in the interaction equations are determined from beam theory using standard response spectrum analysis. An empirical correction factor is developed to account for hoop 'stresses that are not explicitly represented in the beam theory. As the results of these analyses are very sensitive to the damping that is assumed, the extensive three-dimensional finite element analyses that were performed to develop the hoop stress reduction factor were also used to study the sensitivity of containment buckling to the assumed damping. Experiments on model containment structures were then performed to further investigate the damping properties exhibited by these structures. The study is concluded by showing that the simplified method reasonably predicts seismic buckling capacities when compared with independently determined predictions from detailed finite element analyses. RP FARRAR, CR (reprint author), LOS ALAMOS NATL LAB,MS P946,LOS ALAMOS,NM 87545, USA. RI Farrar, Charles/C-6954-2012 NR 21 TC 0 Z9 0 U1 0 U2 4 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0029-5493 J9 NUCL ENG DES JI Nucl. Eng. Des. PD SEP PY 1995 VL 158 IS 1 BP 31 EP 45 DI 10.1016/0029-5493(95)01018-D PG 15 WC Nuclear Science & Technology SC Nuclear Science & Technology GA RW402 UT WOS:A1995RW40200003 ER PT J AU WADE, MR THOMAS, CE COLCHIN, RJ ROME, JA ENGLAND, AC FOWLER, RH AF WADE, MR THOMAS, CE COLCHIN, RJ ROME, JA ENGLAND, AC FOWLER, RH TI CHARACTERIZATION OF FAST-ION BEHAVIOR DURING TANGENTIAL NEUTRAL BEAM INJECTION IN THE ADVANCED TOROIDAL FACILITY SO NUCLEAR FUSION LA English DT Article ID POLOIDAL DIVERTOR EXPERIMENT; DIII-D; TOKAMAK; PLASMA; SYSTEM; ENERGY; MASS; CODE AB The confinement characteristics and behaviour of energetic ions injected during tangential neutral beam injection (NBI) experiments on the Advanced Toroidal Facility (ATF) are examined using several experimental and computational methods. Measurements by a two dimensional scanning neutral particle analyser of the fast ion, slowing down spectra of the injected ions have been used to examine the characteristics of the fast ion distribution in low density plasmas (n(e) less than or equal to 1.0 x 10(19) m(-3)). The energetic ions are found to behave in a manner consistent with the classical slowing down process embodied in the fast ion Fokker-Planck equation. Neutron measurements have been used to extend these results to higher density plasmas (n(e) similar or equal to 7.5 x 10(19) m(-3)). Because of experimental uncertainties, it is difficult to determine whether the measured neutron rates are consistent with classical predictions; however, there are indications in some ATF magnetic configurations that the measured neutron source rates are much lower than expected, indicating an enhanced orbit loss of fast ions in these configurations. In addition, computational studies suggest that the effectiveness of tangential NBI in certain operating regimes in ATF may be limited owing td the presence of loss regions at the trapping boundary. RP WADE, MR (reprint author), OAK RIDGE NATL LAB,DIV FUS ENERGY,OAK RIDGE,TN 37831, USA. NR 31 TC 9 Z9 9 U1 0 U2 2 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5 PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD SEP PY 1995 VL 35 IS 9 BP 1029 EP 1045 DI 10.1088/0029-5515/35/9/I01 PG 17 WC Physics, Fluids & Plasmas SC Physics GA TA146 UT WOS:A1995TA14600001 ER PT J AU RUSKOV, E HEIDBRINK, WW BUDNY, RV AF RUSKOV, E HEIDBRINK, WW BUDNY, RV TI DIFFUSION OF BEAM IONS AT THE TOKAMAK FUSION TEST REACTOR SO NUCLEAR FUSION LA English DT Article ID SNAP TRANSPORT CODE; NEUTRON DETECTORS; TFTR TOKAMAK; CALIBRATION; CONFINEMENT; PLASMAS; SYSTEM; SIMULATIONS; EMISSION AB Various DD and DT plasmas are analysed for effects of fast ion transport with a time dependent, 1 1/2-D transport simulation code (TRANSP). The sensitivity of the simulations to fast ion diffusion modelling is tested against numerous parameters. Strong correlations are found with beam power and plasma stored energy. The neutron emission sensitivity is mostly affected by the fraction of beam-beam neutrons. Wall recycling is essential in interpreting the results for DT plasmas heated with pure deuterium or pure tritium beams. The decay of the 14 MeV neutron emission following a short DT beam pulse implies a small fast ion diffusion coefficient (D-f < 0.05 m(2)/s). The agreement of the measured neutron emission and diamagnetic flux with the simulations in DT plasmas heated with various numbers of tritium and deuterium beams, and power, implies that D-f less than or equal to 0.2 m(2)/s. C1 PRINCETON UNIV,PRINCETON PLASMA PHYS LAB,PRINCETON,NJ 08543. RP RUSKOV, E (reprint author), UNIV CALIF IRVINE,IRVINE,CA 92717, USA. NR 48 TC 18 Z9 18 U1 1 U2 6 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5 PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD SEP PY 1995 VL 35 IS 9 BP 1099 EP 1113 DI 10.1088/0029-5515/35/9/I04 PG 15 WC Physics, Fluids & Plasmas SC Physics GA TA146 UT WOS:A1995TA14600004 ER PT J AU HO, DDM HARTE, JA TABAK, M AF HO, DDM HARTE, JA TABAK, M TI CONFIGURATIONS OF RADIATION-DRIVEN TARGETS FOR HEAVY-ION FUSION SO NUCLEAR FUSION LA English DT Article ID ICF TARGETS; INERTIAL FUSION; SYMMETRIZATION AB The baseline configuration of a radiation driven target for heavy ion fusion is a quasi-cylindrical hohlraum containing a fusion capsule and with radiation converters placed at opposite ends of the hohlraum. Ion beams enter each converter from opposite directions and are stopped by the material inside the converters. For a capsule that absorbs about 1 MJ of radiation energy and has an initial radius of 0.234 cm, calculations using the viewfactor code GERTIE indicate that the maximum initial capsule-to-hohlraum surface area ratio that can provide adequate time dependent symmetry for a capsule implosion is about 0.075. These calculations take into account the substantial inward expansion of the hohlraum wall. The capsule implosion and the wall motion are calculated using the one dimensional radiation hydrodynamics code HYADES and the conversion efficiencies of the radiation converters are studied using the two dimensional radiation hydrodynamics code LASNEX. The efficiency of energy coupling between the hohlraum and the capsule is 21%, the peak hohlraum temperature is 0.26 keV, and the energy gain can be as high as 80. If the converters are placed outside the hohlraum, their radii can be varied according to the beam focusing requirements, while the hohlraum dimensions remain unchanged. This provides a convenient way of calculating target gain as a function of converter radius. By bending the radiation converters by 90 degrees, we can obtain a hohlraum configuration in which the ion beams can enter the target from a single direction, eliminating the need for bending the beams by 180 degrees. RP HO, DDM (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 24 TC 25 Z9 25 U1 3 U2 5 PU INT ATOMIC ENERGY AGENCY PI VIENNA PA WAGRAMERSTRASSE 5 PO BOX 100, A-1400 VIENNA, AUSTRIA SN 0029-5515 J9 NUCL FUSION JI Nucl. Fusion PD SEP PY 1995 VL 35 IS 9 BP 1125 EP 1132 DI 10.1088/0029-5515/35/9/I06 PG 8 WC Physics, Fluids & Plasmas SC Physics GA TA146 UT WOS:A1995TA14600006 ER PT J AU LYSENKO, WP AF LYSENKO, WP TI THE MOMENT APPROACH TO HIGH-ORDER ACCELERATOR BEAM OPTICS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Conference on Charged Particle Optics (CPO4) CY OCT 03-06, 1994 CL TSUKUBA, JAPAN SP Japan Soc Promot Sci, 132nd Comm Electron & Ion Beam Sci & Technol, Tsukuba Expo Mem Fdn, Ogasawara Sci Fdn, Shimadzu Sci Fdn, Hitachi Ltd, JEOL Ltd, Mitsubishi Elect Corp, NHK ID INVARIANTS; SYSTEMS AB High-current beams must be matched to high order to minimize emittance growth and particle losses. For matching problems, the moment approach, in which we describe the particle beam by the moments of its distribution, is particularly valuable. A variety of analytical results are available for linear motion. The moment approach is also the basis of the 3-D space-charge simulation code BEDLAM, in which the dynamical variables are the moments. Moment simulation codes are especially useful for numerically computing beams matched to nonlinear systems. This paper reviews the moment approach, presents a few new results, describes work in progress on new space-charge models, and outlines further potential applications of and improvements to moment-method simulations. RP LYSENKO, WP (reprint author), LOS ALAMOS NATL LAB,AOT-1 MS H808,LOS ALAMOS,NM 87545, USA. NR 10 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD SEP 1 PY 1995 VL 363 IS 1-2 BP 90 EP 99 DI 10.1016/0168-9002(95)00359-2 PG 10 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RT148 UT WOS:A1995RT14800016 ER PT J AU CAREY, DC AF CAREY, DC TI NEUTRINO OPTICS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 4th International Conference on Charged Particle Optics (CPO4) CY OCT 03-06, 1994 CL TSUKUBA, JAPAN SP Japan Soc Promot Sci, 132nd Comm Electron & Ion Beam Sci & Technol, Tsukuba Expo Mem Fdn, Ogasawara Sci Fdn, Shimadzu Sci Fdn, Hitachi Ltd, JEOL Ltd, Mitsubishi Elect Corp, NHK AB Neutrinos are produced by the in-flight decay of pi and K mesons. Neutrinos are uncharged and cannot be focused directly. However, the transverse momentum of the neutrino due to the decay is typically much smaller than the transverse momentum spread of the parent meson. The focusing of the meson beam will then significantly enhance the neutrino flux at a distant detector. Neutrino beams can effectively be focused in the same manner as other charged particle beams, by means of quadrupoles and bending magnets. The bending magnets also can serve to define the momentum of the neutrino beams. Alternatively, neutrino beams can be focused by the use of magnetic horns. Both systems are described here. Proposed experiments with neutrinos to detect neutrino oscillations place the detector hundreds of kilometers away from the source. The flux of neutrinos through the detector then becomes very small. The calculation of the flux by conventional Monte Carlo or numerical integration techniques becomes prohibitively difficult. A alternate mathematical technique can be used to give results which are reliable to about 10%. RP CAREY, DC (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD SEP 1 PY 1995 VL 363 IS 1-2 BP 162 EP 172 DI 10.1016/0168-9002(95)00363-0 PG 11 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RT148 UT WOS:A1995RT14800029 ER PT J AU ROBERTS, ML BENCH, GS HEIKKINEN, DW MORSE, DH BACH, PR AF ROBERTS, ML BENCH, GS HEIKKINEN, DW MORSE, DH BACH, PR TI THE NEW NUCLEAR MICROPROBE AT LIVERMORE SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article; Proceedings Paper CT 4th International Conference on Nuclear Microprobe Technology and Applications CY OCT 10-14, 1994 CL SHANGHAI INT HOUSE EDUC, SHANGHAI, PEOPLES R CHINA SP Shanghai Inst Nucl Res, Fudan Univ HO SHANGHAI INT HOUSE EDUC AB Lawrence Livermore National Laboratory (LLNL) and Sandia National Laboratories/California have jointly constructed a new nuclear microprobe beamline. This beamline is located on the LLNL 10 MV tandem accelerator and can be used for multidisciplinary research using PIXE, PIGE, energy loss tomography, or IBS techniques. Distinctive features of the beamline include incorporation of magnet power supplies into the accelerator control system, computer-controlled object and image slits, automated target positioning to sub-micron resolution, and video optics for beam positioning and observation. Mitigation of vibrations was accomplished with vibration isolators and a rigid beamline design while integral beamline shielding was used to shield from stray magnetic fields. Available detectors include a wavelength dispersive X-ray spectrometer, a High-Purity Germanium detector (HPGe), a Lithium-Drifted Silicon X-Ray detector (SiLi), and solid state surface barrier detectors. Along with beamline performance, results from recent measurements on determination of trace impurities in an International Thermonuclear Experimental Reactor (ITER) super conducting wire strand, determination of Ca/Sr ratios in seashells, and determination of minor and trace element concentrations in sperm cells are presented. C1 SANDIA NATL LABS,LIVERMORE,CA 94550. RP ROBERTS, ML (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 7 TC 12 Z9 12 U1 2 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD SEP PY 1995 VL 104 IS 1-4 BP 13 EP 18 DI 10.1016/0168-583X(95)00395-9 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RZ513 UT WOS:A1995RZ51300004 ER PT J AU IMEL, GR POENITZ, WP SNYDER, AM AF IMEL, GR POENITZ, WP SNYDER, AM TI MEASUREMENT OF FISSION FRAGMENT INDUCED FLUORESCENCE IN XENON SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS LA English DT Article AB A research program was conducted at Argonne National Laboratory-West (ANL-W) to measure the 172 nm fluorescence in xenon induced by fission fragments. Additionally, the survivability of uranium dioxide coatings under high fission power conditions was investigated, and the fission fragment escape energy from coatings of different thicknesses was directly measured. A definite rearrangement of the uranium dioxide coating was observed after high power irradiations, but this rearrangement did not affect the fission fragment energy escape fraction. The measurement of fluorescence induced by fission fragments was done in the Neutron Radiography Reactor (NRAD); this measurement was complicated by the presence of the gamma field and by gas impurity effects. Compensations for gamma and impurity effects were made during the program. Additionally, signal degradations during system pressure changes were observed; however, the signal recovered after several minutes, so this phenomenon did not adversely affect the measurements. The efficiencies of fission fragment and gamma induced fluorescence were measured to be 0.37 and 0.44 respectively. C1 LOCKHEED IDAHO TECHNOL INC,IDAHO FALLS,ID 83415. RP IMEL, GR (reprint author), ARGONNE NATL LAB,POB 2528,IDAHO FALLS,ID 83403, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-583X J9 NUCL INSTRUM METH B JI Nucl. Instrum. Methods Phys. Res. Sect. B-Beam Interact. Mater. Atoms PD SEP PY 1995 VL 103 IS 1 BP 1 EP 14 DI 10.1016/0168-583X(95)00564-1 PG 14 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RW285 UT WOS:A1995RW28500001 ER PT J AU SANTUCCI, J TAYLOR, J AF SANTUCCI, J TAYLOR, J TI REOPENING THE NUCLEAR OPTION SO NUCLEAR PLANT JOURNAL LA English DT Article C1 ELECT POWER RES INST US DOE,ADV REACTOR CORP,PALO ALTO,CA 94303. RP SANTUCCI, J (reprint author), ELECT POWER RES INST,NUCL POWER GRP,3412 HILLVIEW AVE,PALO ALTO,CA 94303, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EQES INC PI GLEN ELLYN PA 799 ROOSEVELT RD, BUILDING 6, STE 208, GLEN ELLYN, IL 60137-5925 SN 0892-2055 J9 NUCL PLANT J JI Nucl. Plant J. PD SEP-OCT PY 1995 VL 13 IS 5 BP 36 EP & PG 0 WC Energy & Fuels; Nuclear Science & Technology SC Energy & Fuels; Nuclear Science & Technology GA RZ715 UT WOS:A1995RZ71500002 ER PT J AU BISWAS, D RATHBUN, RW LEE, SY BUCKNER, MR AF BISWAS, D RATHBUN, RW LEE, SY BUCKNER, MR TI WEAPONS-GRADE PLUTONIUM DISPOSITION IN PRESSURIZED-WATER REACTORS SO NUCLEAR SCIENCE AND ENGINEERING LA English DT Article; Proceedings Paper CT 1994 Topical Meeting on Advances in Reactor Physics CY APR 11-15, 1994 CL KNOXVILLE, TN SP Amer Nucl Soc, Reactor Phys Div, Amer Nucl Soc, Math & Comp Div AB Studies have been conducted to demonstrate that weapons-grade plutonium can be readily disposed of by utilizing it as a fuel in pressurized water reactors (PWR). The disposition can be achieved by first fabricating the weapons-grade plutonium into a mixed-oxide (MOX) fuel form and then irradiating it in either advanced or existing PWRs to a depleted level similar to commercial spent fuel. Preliminary neutronics studies pertaining to safety-related core design using 100% weapons-grade MOX fuel are presented. The results demonstrate the feasibility of a small plutonium disposition reactor of 600-MW(electric) capacity called the PDR600, a large plutonium disposition reactor of 1400-MW(electric) capacity called the PDR1400, and a typical four-loop modified Westinghouse reactor. Feasible loading patterns are obtained for the initial and equilibrium cycles using discrete borosilicate glass burnable absorbers and a heavy loading of zirconium diboride integralfuel burnable absorbers in every fuel rod. The preliminary core physics results include information on soluble boron concentration, peaking factors, Doppler and moderator reactivity coefficients, boron, xenon and control rod worths, shutdown margin and delayed neutron parameters. The core design for weapons-grade plutonium disposition can be achieved with minimum changes in the present safety and licensing criteria of advanced or existing PWRs. RP BISWAS, D (reprint author), WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER SITE,AIKEN,SC 29808, USA. NR 15 TC 5 Z9 5 U1 0 U2 1 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0029-5639 J9 NUCL SCI ENG JI Nucl. Sci. Eng. PD SEP PY 1995 VL 121 IS 1 BP 1 EP 16 PG 16 WC Nuclear Science & Technology SC Nuclear Science & Technology GA RT280 UT WOS:A1995RT28000003 ER PT J AU HILL, RN WADE, DC LIAW, JR FUJITA, EK AF HILL, RN WADE, DC LIAW, JR FUJITA, EK TI PHYSICS STUDIES OF WEAPONS PLUTONIUM DISPOSITION IN THE INTEGRAL FAST-REACTOR CLOSED FUEL-CYCLE SO NUCLEAR SCIENCE AND ENGINEERING LA English DT Article; Proceedings Paper CT 1994 Topical Meeting on Advances in Reactor Physics CY APR 11-15, 1994 CL KNOXVILLE, TN SP Amer Nucl Soc, Reactor Phys Div, Amer Nucl Soc, Math & Comp Div AB The core performance impact of weapons plutonium introduction into the Integral Fast Reactor (IFR) closed fuel cycle is investigated by comparing three disposition scenarios: a power production mode, a moderate destruction mode, and a maximum destruction mode, all at a constant heat rating of 840 MW(thermal). For each scenario, two fuel cycle models are evaluated: cores using weapons material as the sole source of transuranics in a once-through mode and recycle cores using weapons material only as required for a makeup feed. In addition, the impact of alternative feeds (recycled light water reactor or liquid-metal reactor transuranics) on burner core performance is assessed. Calculated results include mass flows, detailed isotopic distributions, neutronic performance characteristics, and reactivity feedback coefficients. In general, it is shown that weapons plutonium does not have an adverse effect on IFR core performance characteristics; also, favorable performance can be maintained for a wide variety of feed materials and fuel cycle strategies. RP HILL, RN (reprint author), ARGONNE NATL LAB,DIV REACTOR ANAL,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 11 TC 21 Z9 22 U1 0 U2 2 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0029-5639 J9 NUCL SCI ENG JI Nucl. Sci. Eng. PD SEP PY 1995 VL 121 IS 1 BP 17 EP 31 PG 15 WC Nuclear Science & Technology SC Nuclear Science & Technology GA RT280 UT WOS:A1995RT28000004 ER PT J AU WORLEY, BA AF WORLEY, BA TI ADVANCES IN-REACTOR PHYSICS - FOREWORD SO NUCLEAR SCIENCE AND ENGINEERING LA English DT Editorial Material RP WORLEY, BA (reprint author), OAK RIDGE NATL LAB,POB 2008,OAK RIDGE,TN 37831, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER NUCLEAR SOCIETY PI LA GRANGE PK PA 555 N KENSINGTON AVENUE, LA GRANGE PK, IL 60525 SN 0029-5639 J9 NUCL SCI ENG JI Nucl. Sci. Eng. PD SEP PY 1995 VL 121 IS 1 BP R9 EP R9 PG 1 WC Nuclear Science & Technology SC Nuclear Science & Technology GA RT280 UT WOS:A1995RT28000002 ER PT J AU Freitag, L Ortega, J AF Freitag, L Ortega, J TI The RSCG algorithm on distributed memory architectures SO NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS LA English DT Article DE conjugate gradient; distributed computing; analytic model AB In this paper, we demonstrate the scalability of the Reduced System Conjugate Gradient (RSCG) algorithm on distributed memory architectures. We present speed-up results obtained on the Intel iPSC/860 that compare one-, two-, and three-dimensional decompositions of the domain for both positive definite and positive semidefinite test problems. We develop a model for the RSCG algorithm to analyze computational and communication costs. The model is validated using experimental data and then used to examine and predict behavior of the RSCG algorithm as a function of architecture parameters including communication latency and transmission times and memory access costs. C1 UNIV VIRGINIA,DEPT COMP SCI,CHARLOTTESVILLE,VA 22903. RP Freitag, L (reprint author), ARGONNE NATL LAB,DIV MATH & COMP SCI,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 22 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1070-5325 J9 NUMER LINEAR ALGEBR JI Numer. Linear Algebr. Appl. PD SEP-OCT PY 1995 VL 2 IS 5 BP 401 EP 414 DI 10.1002/nla.1680020503 PG 14 WC Mathematics, Applied; Mathematics SC Mathematics GA TP569 UT WOS:A1995TP56900002 ER PT J AU Concus, P Saylor, P AF Concus, P Saylor, P TI A modified direct preconditioner for indefinite symmetric Toeplitz systems SO NUMERICAL LINEAR ALGEBRA WITH APPLICATIONS LA English DT Article DE indefinite; inverse; preconditioning; symmetric; Toeplitz; Trench algorithm ID CIRCULANT PRECONDITIONER; EQUATIONS; STABILITY; ALGORITHM AB A modification is presented of the classical O(n(2)) algorithm of Trench for the direct solution of Toeplitz systems of equations. The Trench algorithm is stable for symmetric matrices that are positive definite, but can be unstable for the indefinite case (and for general matrices). Our modification permits extension of the algorithm to compute approximate inverses of indefinite symmetric Toeplitz matrices, for which the unmodified algorithm breaks down when principal submatrices are singular. As a preconditioner, the approximate inverse has an advantage that only matrix-vector multiplications are required for the solution of a linear system, without forward and backward solves. The approximate inverse so obtained can be sufficiently accurate, moreover, that, when it is used as a preconditioner far the applications investigated, subsequent iteration may not even be necessary. Numerical results are given for several test matrices. The perturbation to the original matrix that defines the modification is related to a perturbation in a quantity generated in the Trench algorithm; the associated stability of the Trench algorithm is discussed. C1 UNIV CALIF BERKELEY,DEPT MATH,BERKELEY,CA 94720. UNIV ILLINOIS,DEPT COMP SCI,URBANA,IL 61801. RP Concus, P (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 21 TC 2 Z9 2 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1070-5325 J9 NUMER LINEAR ALGEBR JI Numer. Linear Algebr. Appl. PD SEP-OCT PY 1995 VL 2 IS 5 BP 415 EP 429 DI 10.1002/nla.1680020504 PG 15 WC Mathematics, Applied; Mathematics SC Mathematics GA TP569 UT WOS:A1995TP56900003 ER PT J AU REICH, PB KLOEPPEL, BD ELLSWORTH, DS WALTERS, MB AF REICH, PB KLOEPPEL, BD ELLSWORTH, DS WALTERS, MB TI DIFFERENT PHOTOSYNTHESIS-NITROGEN RELATIONS IN DECIDUOUS HARDWOOD AND EVERGREEN CONIFEROUS TREE SPECIES SO OECOLOGIA LA English DT Article DE LEAF LIFE-SPAN; EVERGREEN; DECIDUOUS; PHOTOSYNTHESIS; NITROGEN ID LEAF LIFE-SPAN; CANOPY STRUCTURE; PLANTS; FOREST; PIPER; LONGEVITY; DYNAMICS; LEAVES; MAPLE; COST AB The relationship between photosynthetic capacity (A(max)) and leaf nitrogen concentration (N) among all C-3 species can be described roughly with one general equation, yet within that overall pattern species groups or individual species may have markedly different A(max)-N relationships. To determine whether one or several predictive, fundamental A(max)-N relationships exist for temperate trees we measured A(max) specific leaf area (SLA) and N in 22 broad-leaved deciduous and 9 needle-leaved evergreen tree species in Wisconsin, United States. For broad-leaved deciduous trees, mass-based A(max) was highly correlated with leaf N (r(2)=0.75, P<0.001). For evergreen conifers, mass-based A(max) was also correlated with leaf N (r(2)=0.59, P<0.001) and the slope of the regression (rate of increase of A(max) per unit increase in N) was lower (P<0.001) by two-thirds than in the broad-leaved species (1.9 vs. 6.4 mu mol CO2 g(-1) N s(-1)), consistent with predictions based on tropical rain forest trees of short vs. long leaf Life-span. On an area basis, there was a strong A(max)-N correlation among de ciduous species (r(2)=0.78, P<0.001) and no correlation (r(2)=0.03, P>0.25) in the evergreen conifers. Compared to deciduous trees at a common leaf N (mass or area basis), evergreen trees had lower A(max) and SLA. For all data pooled, both leaf N and A(max) on a mass basis were correlated (r(2)=0.6) with SLA; in contrast, area-based leaf N scaled tightly with SLA (r(2)=0.81), but area-based A(max) did not (r(2)=0.06) because of low A(max) per unit N in the evergreen conifers. Multiple regression analysis of all data pooled showed that both N (mass or area basis) and SLA were significantly (P<0.001) related to A(max) on mass (r(2)=0.80) and area (r(2)=0.55) bases, respectively. These results provide further evidence that A(max)-N relationships are fundamentally different for ecologically distinct species groups with differing suites of foliage characteristics: species with long leaf life-spans and low SLA, whether broad-leaved or needle-leaved, tend to have lower A(max) per unit leaf N and a lower slope and higher intercept of the A(max)-N relation than do species with shorter leaf life-span and higher SLA. A single global A(max)-N equation overestimates and underestimates A(max) for temperate trees at the upper and lower end of their leaf N range, respectively. Users of A(max)-N relationships in modeling photosynthesis in different ecosystems should appreciate the strengths and limitations of regression equations based on different species groupings. C1 UNIV WISCONSIN,DEPT FORESTRY,MADISON,WI 53706. BROOKHAVEN NATL LAB,DIV BIOSYST & PROC SCI,UPTON,NY 11973. RP REICH, PB (reprint author), UNIV MINNESOTA,DEPT FOREST RESOURCES,ST PAUL,MN 55108, USA. OI Ellsworth, David/0000-0002-9699-2272 NR 27 TC 291 Z9 321 U1 6 U2 60 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0029-8549 J9 OECOLOGIA JI Oecologia PD SEP PY 1995 VL 104 IS 1 BP 24 EP 30 DI 10.1007/BF00365558 PG 7 WC Ecology SC Environmental Sciences & Ecology GA RZ359 UT WOS:A1995RZ35900004 PM 28306909 ER PT J AU SUCHA, G BOLTON, SR WEISS, S CHEMLA, DS AF SUCHA, G BOLTON, SR WEISS, S CHEMLA, DS TI PERIOD-DOUBLING AND QUASI-PERIODICITY IN ADDITIVE-PULSE MODE-LOCKED LASERS SO OPTICS LETTERS LA English DT Article AB We have observed period doubling and quasi-periodicity in an additive-pulse mode-locked F-center laser. Experiments show that period doubling is often present even though standard diagnostics such as pulse autocorrelations acid spectra give no indication of it. Numerical simulations show that the period doubling is associated with strong pulse reshaping. (C) 1995 Optical Society of America C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RP SUCHA, G (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. RI weiss, shimon/B-4164-2009 OI weiss, shimon/0000-0002-0720-5426 NR 12 TC 36 Z9 37 U1 1 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD SEP 1 PY 1995 VL 20 IS 17 BP 1794 EP 1796 DI 10.1364/OL.20.001794 PG 3 WC Optics SC Optics GA RQ726 UT WOS:A1995RQ72600018 PM 19862160 ER PT J AU CHENG, TY BULLOCK, RM AF CHENG, TY BULLOCK, RM TI KINETIC HYDRICITY OF TRANSITION-METAL HYDRIDES TOWARD TRITYL CATION SO ORGANOMETALLICS LA English DT Note ID ATOM TRANSFER-REACTIONS; CARBENIUM IONS; COMPLEXES; MECHANISMS; MOLYBDENUM; ACIDITIES; OXIDATION; RADICALS; RATES AB The kinetics of hydride transfer from a series of metal hydrides (MH) to Ph(3)C(+)BF(4)(-) (producing Ph(3)-CH and M- - -FBF3) have bean studied by stopped-flow methods in CH2Cl2 solution. Second-order rate constants at 25 degrees C span 5 orders of magnitude in kinetic hydricity, ranging from k = 5.0 x 10(1) M(-1) s(-1) for HMn-(CO)(5) to k = 4.6 x 10(6) M(-1) s(-1) for trans-HMo(CO)(2)-(PMe(3))Cp. C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. RI Bullock, R. Morris/L-6802-2016 OI Bullock, R. Morris/0000-0001-6306-4851 NR 23 TC 33 Z9 33 U1 1 U2 8 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0276-7333 J9 ORGANOMETALLICS JI Organometallics PD SEP PY 1995 VL 14 IS 9 BP 4031 EP 4033 DI 10.1021/om00009a001 PG 3 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA RU572 UT WOS:A1995RU57200001 ER PT J AU WON, TJ ESPENSON, JH AF WON, TJ ESPENSON, JH TI ELECTRON-TRANSFER REACTIONS OF THE ORGANOMETALLIC FREE-RADICAL CPMO(CO)(3)(CENTER-DOT) WITH TRIPHENYLPYRYLIUM ION AND TRIPHENYLPYRANYL RADICAL SO ORGANOMETALLICS LA English DT Article ID SPIN-RESONANCE; METAL-METAL; COMPLEXES; 17-ELECTRON; DISSOCIATION; SIMULATION; MECHANISM; MANGANESE; CLEAVAGE; BONDS AB The title compound, a 17-electron organometallic free radical, undergoes reversible electron transfer in two steps in acetonitrile. It is oxidized by the triphenylpyrylium ion (TPP+) to [CpMo(CO)(3)MCCH(3)](+) and reduced by TPP. to [CpMo(CO)(3)](-). Three of the four rate constants for the forward and reverse directions of these two steps were evaluated directly by flash photolysis and stopped-flow techniques. The results were considered in light of data for similar reactions of [CpMo(CO)(3)](.) with TMPD(.+) and TMPD (TMPD = N,N,N',N'-tetramethyl-1,4-phenylenediamine). Notable differences were found, due entirely to the 0.55 V difference in E degrees for the two A(+)/A couples. On the other hand, surprising agreement was found between the rate constants for a pair of reactions that differ by 10(8) in their equilibrium constants. Both of these rate constants are at the diffusion-controlled level. We thus conclude that the minor species [CpMo(CO)(3) . NCCH3](.) (sometimes referred to as a 19e radical), the binding constant of which is only similar to 10(-4) L mol(-1), may carry the diffusion-controlled reactions with TPP+ and TMPD(.+). Reduction to the 18e molybdenum anion, however, does not proceed with the involvement of the coordinated solvent. C1 IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 33 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0276-7333 J9 ORGANOMETALLICS JI Organometallics PD SEP PY 1995 VL 14 IS 9 BP 4275 EP 4280 DI 10.1021/om00009a034 PG 6 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA RU572 UT WOS:A1995RU57200034 ER PT J AU SCHWARTZ, DJ ANDERSEN, RA AF SCHWARTZ, DJ ANDERSEN, RA TI SOLUTION-STATE INTERACTIONS OF BIS(PENTAMETHYLCYCLOPENTADIENYL)YTTERBIUM CP-ASTERISK-YB-2, WITH TRIALKYLPHOSPHINES AND R(3)PX COMPLEXES (X=O,NR',CHR'') SO ORGANOMETALLICS LA English DT Article ID MOLECULAR-ORBITAL CALCULATIONS; TERTIARY PHOSPHINE COMPLEXES; RAY CRYSTAL-STRUCTURE; F-BLOCK METALS; TRANSITION-METAL; ORGANOMETALLIC COMPOUNDS; PHOTOELECTRON-SPECTRA; NMR-SPECTROSCOPY; GAS-PHASE; YTTERBIUM(II) AB The interactions formed between Cp*Yb-2 (1) and phosphines and R(3)PX derivatives (X = O, NR', CHR'') in solution have been investigated using multinuclear (H-1, C-13, P-31, Yb-171) and variable-temperature NMR spectroscopy. Intermolecular exchange can be slowed at low temperature for 1:1 and 1:2 phosphine adducts, with a (1)J(YbP) value of ca. 950 Hz for Cp*Yb-2(PEt(3)) (3) and Cp*Yb-2(PMe(3)) (4) and ca. 600 Hz for Cp*Yb-2(PMe(3))(2) (2), Cp*Yb-2(dmpm) (dmpm = Me(2)PCH(2)PMe(2)) (5), and Cp*Yb-2(1,2-(PMe(2))(2)C6H4) (6) Adducts of 1 with Me(3)PO and Et(3)PNH undergo slow intermolecular exchange in solution at 25 degrees C (NMR time scale); both 1:1 adducts (Cp*Yb-2(OPMe(3)), 7; Cp*Yb-2(HNPEt(3)), 9) and 1:2 adducts (Cp*Yb-2(OPMe(3))(2), 8; Cp*Yb-2(HNPEt(3))(2), 10) have been isolated. The spectroscopic properties of two ylide adducts, Cp*Yb-2(Me(2)PhPCHSiMe(3)) (12) and Cp*Yb-2(Me(2)LPhPCH(2)) (13), have also been investigated. Intermolecular exchange can be slowed at low temperature in both cases; in the former complex a second process, resulting in inequivalent Cp* rings and inequivalent P-bound methyl groups, can also be slowed at lower temperatures. The nature of this process is discussed in detail. The solid-state structure of 12 has been determined. The NMR values for all of the complexes are discussed in detail. In addition, the Yb-171 chemical shifts for 6, 7, and 12 have been measured, via H-1/Yb-171 indirect detection utilizing long-range J(YbH) coupling, and are discussed. C1 UNIV CALIF BERKELEY, DEPT CHEM, BERKELEY, CA 94720 USA. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV CHEM SCI, BERKELEY, CA 94720 USA. NR 76 TC 10 Z9 10 U1 3 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0276-7333 EI 1520-6041 J9 ORGANOMETALLICS JI Organometallics PD SEP PY 1995 VL 14 IS 9 BP 4308 EP 4318 DI 10.1021/om00009a039 PG 11 WC Chemistry, Inorganic & Nuclear; Chemistry, Organic SC Chemistry GA RU572 UT WOS:A1995RU57200039 ER PT J AU CHOI, JY DONGARRA, JJ WALKER, DW AF CHOI, JY DONGARRA, JJ WALKER, DW TI PARALLEL MATRIX TRANSPOSE ALGORITHMS ON DISTRIBUTED-MEMORY CONCURRENT COMPUTERS SO PARALLEL COMPUTING LA English DT Article DE LINEAR ALGEBRA; MATRIX TRANSPOSE ALGORITHM; DISTRIBUTED MEMORY MULTIPROCESSORS; POINT-TO-POINT COMMUNICATION; INTEL TOUCHSTONE DELTA AB This paper describes parallel matrix transpose algorithms on distributed memory concurrent processors. We assume that the matrix is distributed over a P X Q processor template with a block cyclic data distribution. P, Q, and the block size can be arbitrary, so the algorithms have wide applicability. The communication schemes of the algorithms are determined by the greatest common divisor (GCD) of P and e. If P and Q are relatively prime, the matrix transpose algorithm involves complete exchange communication. If P and P are not relatively prime, processors are divided into GCD groups and the communication operations are overlapped for different groups of processors. Processors transpose GCD wrapped diagonal blocks simultaneously, and the matrix can be transposed with LCM/GCD steps, where LCM is the least common multiple of P and Q. The algorithms make use of non-blocking, point-to-point communication between processors. The use of nonblocking communication allows a processor to overlap the messages that it sends to different processors, thereby avoiding unnecessary synchronization. Combined with the matrix muliplication routine, C = A . B, the algorithms are used to compute parallel multiplications of transposed matrices, C = A(T) . B-T, in the PUMMA package [5]. Details of the parallel implementation of the algorithms are given, and results are presented for runs on the Intel Touchstone Delta computer. C1 OAK RIDGE NATL LAB,MATH SCI SECT,OAK RIDGE,TN 37831. UNIV TENNESSEE,DEPT COMP SCI,KNOXVILLE,TN 37996. RP CHOI, JY (reprint author), SOONGSIL UNIV,SCH COMP,DONGJAK KU,1-1 SANGDO DONG,SEOUL 156743,SOUTH KOREA. RI Walker, David/B-7978-2010; Dongarra, Jack/E-3987-2014; OI Walker, David/0000-0002-1360-6330 NR 14 TC 13 Z9 15 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-8191 J9 PARALLEL COMPUT JI Parallel Comput. PD SEP PY 1995 VL 21 IS 9 BP 1387 EP 1405 DI 10.1016/0167-8191(95)00016-H PG 19 WC Computer Science, Theory & Methods SC Computer Science GA RV621 UT WOS:A1995RV62100001 ER PT J AU ANGELO, JE MILLS, MJ AF ANGELO, JE MILLS, MJ TI INVESTIGATIONS OF THE MISFIT DISLOCATION-STRUCTURE AT A CDTE(001)/GAAS(001) INTERFACE USING STILLINGER-WEBER POTENTIALS AND HIGH-RESOLUTION TRANSMISSION ELECTRON-MICROSCOPY SO PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES LA English DT Article ID CDTE/GAAS(001) INTERFACE; SILICON; CDTE; HETEROSTRUCTURES; SURFACE; STRAIN; GAAS AB In this paper, Stillinger-Weber potentials which accurately describe the elastic constants of CdTe and GaAs are developed. These potentials are applied to investigate the misfit dislocation structure at a CdTe(001)/GaAs(001) interface. Based on these calculated structures, simulated high-resolution transmission electron microscopy images are compared with experimentally observed images. It will be shown that, although the exact energetics of the interface are not provided by these potentials, dislocation stand-off is more strongly influenced by the Poisson expansion or contraction of the individual materials. Further, the best agreement between the experimentally observed and simulated images is obtained when the dislocations occur at the interface with no stand-off being exhibited. The calculated structures indicate that the misfit dislocation structure exhibited along the [110] direction is different from that along the [1(1) over bar0$] direction if the initial monolayer of material, in this case believed to be tellurium, is misfitting with the substrate. This is brought about by the tetrahedral nature of the constituent materials and is not directly related to the zincblende structure. C1 SANDIA NATL LABS,LIVERMORE,CA 94551. NR 24 TC 11 Z9 11 U1 0 U2 3 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0141-8610 J9 PHILOS MAG A JI Philos. Mag. A-Phys. Condens. Matter Struct. Defect Mech. Prop. PD SEP PY 1995 VL 72 IS 3 BP 635 EP 649 PG 15 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA TE280 UT WOS:A1995TE28000007 ER PT J AU MORRIS, JR YE, YY HO, KM CHAN, CT YOO, MH AF MORRIS, JR YE, YY HO, KM CHAN, CT YOO, MH TI STRUCTURES AND ENERGIES OF COMPRESSION TWIN BOUNDARIES IN HCP TI AND ZR SO PHILOSOPHICAL MAGAZINE A-PHYSICS OF CONDENSED MATTER STRUCTURE DEFECTS AND MECHANICAL PROPERTIES LA English DT Article ID GROUND-STATE PROPERTIES; EMBEDDED-ATOM METHOD; CLOSE-PACKED METALS; COMPUTER-SIMULATION; ELECTRONIC-STRUCTURE; TRANSITION-METALS; DEFORMATION; PSEUDOPOTENTIALS; 4D-TRANSITION; DISLOCATION AB Using a combination of first-principles and embedded-atom techniques, we have calculated the structure and energy of compression twin boundaries in hcp Zr and Ti, the most ductile of the hcp elements. These calculations are important tests of classical nucleation theory, which predicts that the energy of these structures controls the nucleation rate. Our results contradict this: the {11 (2) over bar 2} twin boundary, which is prevalent at low temperatures, is significantly higher in energy than the competing {10 (1) over bar 1} twin which is only formed at higher temperatures. C1 OAK RIDGE NATL LAB,DIV MET & CERAM,OAK RIDGE,TN 37831. RP MORRIS, JR (reprint author), IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,US DOE,AMES LAB,AMES,IA 50011, USA. RI Morris, J/I-4452-2012 OI Morris, J/0000-0002-8464-9047 NR 41 TC 19 Z9 19 U1 4 U2 10 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0141-8610 J9 PHILOS MAG A JI Philos. Mag. A-Phys. Condens. Matter Struct. Defect Mech. Prop. PD SEP PY 1995 VL 72 IS 3 BP 751 EP 763 PG 13 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA TE280 UT WOS:A1995TE28000015 ER PT J AU CHU, F ORMECI, AH MITCHELL, TE WILLS, JM THOMA, DJ ALBERS, RC CHEN, SP AF CHU, F ORMECI, AH MITCHELL, TE WILLS, JM THOMA, DJ ALBERS, RC CHEN, SP TI STACKING-FAULT ENERGY OF THE NBCR2 LAVES PHASE SO PHILOSOPHICAL MAGAZINE LETTERS LA English DT Article ID GRAIN-BOUNDARIES; ALLOYS; STABILITY; SYSTEMS AB A total energy study has been performed on the NbCr2 Laves phase using first-principles electronic structure calculations based on the full-potential linear muffin-tin orbital method. For the two Laves phase structures, C15 and C14, cohesive energies and heats of formation were obtained. A method was developed to calculate the stacking fault energy, gamma, in C15 Laves phases, using only two quantities: the cohesive energy difference between C15 and C14 Laves phases, and the C15 lattice constant. For C15 NbCr2, the calculated stacking fault energy is 90 mJ m(-2). The calculated result is in good agreement with an experimental result deduced from an extended dislocation node. RP CHU, F (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. RI Ormeci, Alim/F-1082-2012 OI Ormeci, Alim/0000-0001-5468-3378 NR 30 TC 17 Z9 18 U1 0 U2 3 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0950-0839 J9 PHIL MAG LETT JI Philos. Mag. Lett. PD SEP PY 1995 VL 72 IS 3 BP 147 EP 153 DI 10.1080/09500839508242445 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA RV141 UT WOS:A1995RV14100001 ER PT J AU DEVANATHAN, R SICKAFUS, KE YU, N NASTASI, M AF DEVANATHAN, R SICKAFUS, KE YU, N NASTASI, M TI STRUCTURE OF THE METASTABLE STATE IN ION-IRRADIATED MAGNESIO-ALUMINATE SPINEL SO PHILOSOPHICAL MAGAZINE LETTERS LA English DT Article AB We have studied the structural changes in MgAl2O4 and MgO . 3Al(2)O(3) spinel single crystals following 40DkeV Xe2+ irradiation at 100K to a dose of 1 X 10(16) ions cm(-2). The radiation-damaged layer was observed using cross-sectional transmission electron microscopy. The first-order Bragg reflections decreased in intensity with increasing damage dose and eventually disappeared, indicating a transformation to a metastable crystalline state. Further irradiation resulted in amorphization of the damaged layer. Considering the well known radiation resistance of spinel, these results suggest that the transformation to the metastable state could be an important step in the amorphization process. We have examined various models for the structure of the metastable phase by calculating the diffraction patterns and comparing them to the electron diffraction observations. Our results indicate that a fee oxygen lattice with cation interstitials provides the best explanation for the observed structural changes. RP DEVANATHAN, R (reprint author), LOS ALAMOS NATL LAB,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87545, USA. RI Devanathan, Ram/C-7247-2008 OI Devanathan, Ram/0000-0001-8125-4237 NR 10 TC 27 Z9 27 U1 0 U2 6 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0950-0839 J9 PHIL MAG LETT JI Philos. Mag. Lett. PD SEP PY 1995 VL 72 IS 3 BP 155 EP 161 DI 10.1080/09500839508242446 PG 7 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA RV141 UT WOS:A1995RV14100002 ER PT J AU ZHOU, DS CHEN, CL MITCHELL, TE HACKENBERGER, LB MESSIER, R AF ZHOU, DS CHEN, CL MITCHELL, TE HACKENBERGER, LB MESSIER, R TI THIN-FILMS OF CUBIC BORON-NITRIDE ON SILICON SO PHILOSOPHICAL MAGAZINE LETTERS LA English DT Article AB Thin films of cubic boron nitride were grown on Si(100) surfaces using an ion-beam-assisted physical vapour deposition process. We studied the film microstructure with transmission electron microscopy and selected-area electron diffraction. The films are polycrystalline with a grain size as large as 0.4 mu m. Sometimes individual grains are found to extend through the film. Electron diffraction and large-angle tilting were used to identify clearly the structure as cubic boron nitride. Multiple twins on (111) planes are abundant in individual grains, as revealed by electron diffraction. C1 LOS ALAMOS NATL LAB,CTR MAT SCI,LOS ALAMOS,NM 87545. PENN STATE UNIV,MAT RES LAB,UNIVERSITY PK,PA 16802. NR 15 TC 11 Z9 11 U1 0 U2 1 PU TAYLOR & FRANCIS LTD LONDON PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0950-0839 J9 PHIL MAG LETT JI Philos. Mag. Lett. PD SEP PY 1995 VL 72 IS 3 BP 163 EP 166 DI 10.1080/09500839508242447 PG 4 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA RV141 UT WOS:A1995RV14100003 ER PT J AU YVON, PJ SCHWARZ, RB SCHIFERL, D JOHNSON, WL AF YVON, PJ SCHWARZ, RB SCHIFERL, D JOHNSON, WL TI COVALENT AND LIQUID-LIKE AMORPHOUS PHASES IN AL-GE ALLOYS SO PHILOSOPHICAL MAGAZINE LETTERS LA English DT Article ID DIAMOND AB We report the formation of a liquid-like amorphous metallic phase in the AI-Ge alloy system at high pressures. We used Menill-Bassett diamond anvil cells to apply pressures from 0 to 200kbar (from 0 to 20 GPa) to nanosize two-phase mixtures of aluminium and germanium. At a pressure of approximately 25 kbar, we observed the formation of a metastable high-pressure hexagonal gamma phase. On releasing the pressure, the gamma phase transforms to a tetrahedrally bonded continuous random network structure, amorphous A1Ge-I, similar to that found under high-pressure indents in crystalline pure germanium. On further increasing the pressure from 25 kbar, the gamma phase remains stable up to 80 kbar. At 80 kbar, the gamma phase transforms to a dense liquid-like phase, amorphous A1Ge-II. This transformation is accompanied by an increase in density of about 15%. Both amorphous phases are metastable at ambient conditions of pressure and temperature and this facilitates the observations of the phases by transmission electron microscopy. C1 LOS ALAMOS NATL LAB, CTR MAT SCI, LOS ALAMOS, NM 87544 USA. CALTECH, KECK LABS, PASADENA, CA 91125 USA. NR 21 TC 5 Z9 6 U1 0 U2 2 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 0950-0839 EI 1362-3036 J9 PHIL MAG LETT JI Philos. Mag. Lett. PD SEP PY 1995 VL 72 IS 3 BP 167 EP 174 DI 10.1080/09500839508242448 PG 8 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Physics, Applied; Physics, Condensed Matter SC Materials Science; Metallurgy & Metallurgical Engineering; Physics GA RV141 UT WOS:A1995RV14100004 ER PT J AU MARTIN, T AF MARTIN, T TI GAUGE-INVARIANCE AND WAVE-PACKET SIMULATIONS IN THE PRESENCE OF DIPOLE FIELDS SO PHYSICA B LA English DT Article ID TIME AB A method for performing wave packet simulations in dipole fields is presented. Starting from a Hamiltonian with noncommuting terms, a gauge transformation leads to a new Hamiltonian which allows to calculate explicitly the evolution operator. In this new gauge, the dipole field is fully included in the vector potential. The method of Goldberg et al. [Am. J. Phys. 35 (1967) 177] based on the Caley form of the evolution operator is then generalized, and the resulting scheme is applied to describe a switching device. The device is composed of a well region separated from a free region by a potential barrier, such that one bound state and one quasi-level are present. For a particle initially in the ground state, transitions to the quasi level are induced by applying a dipole field, and the wave function can subsequently tunnel in the free region. The probability to tunnel in the free region exhibits a plateaux structure as the wave function is emitted by ''bursts'' after each Rabi oscillation has been completed. C1 LOS ALAMOS NATL LAB,DIV THEORY,CNLS,LOS ALAMOS,NM 87545. NR 13 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4526 J9 PHYSICA B JI Physica B PD SEP PY 1995 VL 212 IS 4 BP 357 EP 363 DI 10.1016/0921-4526(95)00374-I PG 7 WC Physics, Condensed Matter SC Physics GA RU934 UT WOS:A1995RU93400004 ER PT J AU BHATTACHARYA, RN PARANTHAMAN, M AF BHATTACHARYA, RN PARANTHAMAN, M TI ALTERNATING-CURRENT ELECTRODEPOSITION (METAFUSE) PROCESS FOR FORMING THALLIUM-OXIDE SUPERCONDUCTORS SO PHYSICA C LA English DT Article ID THIN-FILMS; ELECTROCHEMICAL SYNTHESIS; YBACUO; TLBACACUO AB Thallium-free precursor films with the composition Ba2Ca2Cu3Ag0.37Ox (BCCO-Ag) were prepared on Ag foil by an alternating current electrodeposition (Metafuse) [A. Joseph, US Patent No. 4,764,654 (1988); No. 4,840,711 (1989)] process. The results show that the metafuse deposition process is fully capable of synthesizing controlled 223 stoichiometric films at various thicknesses (1-12 microns). The deposited precursor films were processed using a two-zone thallination furnace, which employs a Tl source zone and a separate sample zone, both within a controlled O-2 ambient environment. After thallination, the films were predominantly c-axis oriented TlBa2Ca2Cu3Oy (1223) phase. The resistive transition for a representative film is fairly sharp, with an onset temperature of 118 K and a zero-resistance temperature of 110 K. At 77 K and self-field, the critical current densities of the 2 mu m, 4 mu m and 12 mu m films were 1.96 X 10(4) A/cm(2), 1.66 X 10(4) A/cm(2), and 1 x 10(4) A/cm(2), respectively. C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. RP BHATTACHARYA, RN (reprint author), NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401, USA. RI Paranthaman, Mariappan/N-3866-2015 OI Paranthaman, Mariappan/0000-0003-3009-8531 NR 12 TC 18 Z9 18 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 J9 PHYSICA C JI Physica C PD SEP 1 PY 1995 VL 251 IS 1-2 BP 105 EP 109 DI 10.1016/0921-4534(95)00380-0 PG 5 WC Physics, Applied SC Physics GA RU861 UT WOS:A1995RU86100010 ER PT J AU RAY, RD SMITH, PA OLSEN, EA AF RAY, RD SMITH, PA OLSEN, EA TI SYNTHESIS OF AG SHEATHED, BI-2212 TAPES BY A NOVEL LIQUID WICKING METHOD SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS LA English DT Article ID BI2SR2CACU2OY AB A novel liquid wicking process has been developed to produce silver-sheathed Bi-2212 samples with oxide core thicknesses of 10-20 mu m, uniform oxide/silver interfaces, small non-superconducting phases and low porosity. This technique avoids many problems associated with oxide-powder-in-tube (OPIT) processing by exploiting the wicking behavior exhibited by Bi-Sr-Ca-Cu-O (BSCCO) liquid between silver surfaces. Critical current densities over 50000 A/cm(2) at 4 K in self-field have been achieved with an isothermal melt process and Bi2.1Sr2Ca0.9Cu2Ox composition powder. RP LOS ALAMOS NATL LAB, CTR SUPERCONDUCT TECHNOL, MAIL STOP K763, LOS ALAMOS, NM 87545 USA. NR 12 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-4534 EI 1873-2143 J9 PHYSICA C JI Physica C PD SEP 1 PY 1995 VL 251 IS 1-2 BP 1 EP 6 DI 10.1016/0921-4534(95)00384-3 PG 6 WC Physics, Applied SC Physics GA RU861 UT WOS:A1995RU86100001 ER PT J AU BOSHIER, MG DHAWAN, S FEI, X HUGHES, VW JANOUSCH, M JUNGMANN, K LIU, W PILLAI, C PRIGL, R PUTLITZ, GZ REINHARD, I SCHWARZ, W SOUDER, PA VANDYCK, O WANG, X WOODLE, KA XU, Q AF BOSHIER, MG DHAWAN, S FEI, X HUGHES, VW JANOUSCH, M JUNGMANN, K LIU, W PILLAI, C PRIGL, R PUTLITZ, GZ REINHARD, I SCHWARZ, W SOUDER, PA VANDYCK, O WANG, X WOODLE, KA XU, Q TI OBSERVATION OF RESONANCE LINE NARROWING FOR OLD MUONIUM SO PHYSICAL REVIEW A LA English DT Article AB Resonance line narrowing up to 1/2 of the natural linewidth has been observed for microwave magnetic-resonance transitions between Zeeman levels of ground-state muonium at a strong magnetic field of 1.7 T. The observed lines are in good agreement with predicted line shapes and are useful for a precision determination of Delta nu and mu(mu)/mu(p). C1 UNIV HEIDELBERG,INST PHYS,D-69120 HEIDELBERG,GERMANY. SYRACUSE UNIV,DEPT PHYS,SYRACUSE,NY 13244. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. BROOKHAVEN NATL LAB,UPTON,NY 11973. ETH ZURICH HONGGERBERG,INST PARTICLE PHYS,CH-5232 VILLIGEN,SWITZERLAND. RP BOSHIER, MG (reprint author), YALE UNIV,DEPT PHYS,NEW HAVEN,CT 06520, USA. RI Janousch, Markus/B-3285-2010; Jungmann, Klaus/A-7142-2010; jungmann, klaus/H-1581-2013; Boshier, Malcolm/A-2128-2017 OI jungmann, klaus/0000-0003-0571-4072; Boshier, Malcolm/0000-0003-0769-1927 NR 8 TC 17 Z9 17 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD SEP PY 1995 VL 52 IS 3 BP 1948 EP 1953 DI 10.1103/PhysRevA.52.1948 PG 6 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA RU159 UT WOS:A1995RU15900021 ER PT J AU CHEN, MH SCOFIELD, JH AF CHEN, MH SCOFIELD, JH TI RELATIVISTIC EFFECTS ON ANGULAR-DISTRIBUTION AND POLARIZATION OF DIELECTRONIC SATELLITE LINES OF HYDROGENLIKE IONS SO PHYSICAL REVIEW A LA English DT Article ID CROSS-SECTIONS; HE-LIKE; EXCITATION; AUGER; SUBLEVELS; ELECTRONS AB The dielectronic satellite radiation emitted from ions excited by resonant capture of an electron from a directed electron beam can be strongly linearly polarized. We have carried out relativistic calculations of angular asymmetry parameters and polarization of dielectronic satellite lines for H-like ions with Z=9, 22, 28, 42, and 92 using the multiconfiguration Dirac-Fock model. We found that many transitions exhibit strong angular asymmetry and a large degree of polarization. In addition, we found that the polarization of the resulting radiation is independent of atomic number in the nonrelativistic limit. But when the effects of relativity are taken into account, the polarization becomes markedly Z dependent. RP CHEN, MH (reprint author), LAWRENCE LIVERMORE NATL LAB,DIV HIGH TEMP PHYS,LIVERMORE,CA 94550, USA. NR 19 TC 45 Z9 47 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD SEP PY 1995 VL 52 IS 3 BP 2057 EP 2061 DI 10.1103/PhysRevA.52.2057 PG 5 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA RU159 UT WOS:A1995RU15900033 ER PT J AU XU, J HULETT, LD LEWIS, TA MCLUCKEY, SA AF XU, J HULETT, LD LEWIS, TA MCLUCKEY, SA TI CHEMICAL SELECTIVITY IN THE DISSOCIATIVE IONIZATION OF ORGANIC-MOLECULES BY LOW-ENERGY POSITRONS SO PHYSICAL REVIEW A LA English DT Article AB The ionization land dissociation, induced by positrons having kinetic energies in the range 0.3-3 eV, of a large number of organic molecules have been studied. The required energies for ionization and dissociation are supplied through the annihilation of electrons by the positrons. Cross sections for these interactions are strong functions of molecular size, molecular structure, and bond type. Fragmentation usually occurs between atoms linked by sigma bonds. Multiple bonds tend to stabilize the molecules against fragmentation. Fragmentation induced under the low-energy process occurs preferably in the linear groups of molecules rather than in ring structures, Ionization and dissociation cross sections of large alkane molecules rue higher than those of smaller molecules. A possible explanation of the fragmentation phenomena is that positrons annihilate electrons in energy levels below the highest occupied molecular orbital (HOMO), leaving the molecules in excited states. Multiple bonds in molecules tend to promote higher populations near the HOMO state; annihilation of electrons near the HOMO state does not result in fragmentation. RP XU, J (reprint author), OAK RIDGE NATL LAB,POB 2008,OAK RIDGE,TN 37831, USA. RI McLuckey, Scott/B-2203-2009 OI McLuckey, Scott/0000-0002-1648-5570 NR 12 TC 9 Z9 9 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD SEP PY 1995 VL 52 IS 3 BP 2088 EP 2094 DI 10.1103/PhysRevA.52.2088 PG 7 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA RU159 UT WOS:A1995RU15900037 ER PT J AU CHOW, WW INDIK, R KNORR, A KOCH, SW MOLONEY, JV AF CHOW, WW INDIK, R KNORR, A KOCH, SW MOLONEY, JV TI TIME-RESOLVED NONDEGENERATE 4-WAVE-MIXING IN A SEMICONDUCTOR AMPLIFIER SO PHYSICAL REVIEW A LA English DT Note ID HIGHLY EXCITED SEMICONDUCTORS; POPULATION PULSATIONS; NONEQUILIBRIUM THEORY; PULSE-PROPAGATION; LASER AMPLIFIER; QUANTUM-WELLS AB The dynamics of copropagating femtosecond pulses with different carrier frequencies is modeled for a semiconductor amplifier. The propagation induced four-wave-mixing signal is studied as a function of the pulse intensity and the spectral detuning between the pulses. C1 UNIV ARIZONA,ARIZONA CTR MATH SCI,TUCSON,AZ 85721. UNIV ARIZONA,CTR OPT SCI,TUCSON,AZ 85721. UNIV MARBURG,FACHBEREICH PHYS,D-35032 MARBURG,GERMANY. UNIV MARBURG,ZENTRUM MAT WISSENSCH,D-35032 MARBURG,GERMANY. RP CHOW, WW (reprint author), SANDIA NATL LABS,POB 5800,ALBUQUERQUE,NM 87185, USA. NR 26 TC 6 Z9 6 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD SEP PY 1995 VL 52 IS 3 BP 2479 EP 2482 DI 10.1103/PhysRevA.52.2479 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA RU159 UT WOS:A1995RU15900087 ER PT J AU CHETTY, N WEINERT, M RAHMAN, TS DAVENPORT, JW AF CHETTY, N WEINERT, M RAHMAN, TS DAVENPORT, JW TI VACANCIES AND IMPURITIES IN ALUMINUM AND MAGNESIUM SO PHYSICAL REVIEW B LA English DT Article ID 1ST-PRINCIPLES MOLECULAR-DYNAMICS; FORMATION ENERGY; ELECTRONIC-STRUCTURE; ABINITIO CALCULATION; PSEUDOPOTENTIALS; DENSITY; METALS; AL; ENERGETICS; FORMALISM AB The vacancy formation energies and (Mg, Al, and Si) impurity heats of solution are calculated for Al and Mg using a first-principles pseudopotential approach and large supercells. While the interaction of the defects considered here are already negligible for reasonably small unit cells, adequate sampling of the Brillouin zone is found to be essential for these metallic systems, even for systems containing more than 100 atoms per unit cell; e.g., the vacancy formation energy of Al for 108 atoms per cell has the incorrect sign if only the Gamma point is sampled. When the volume and structural relaxations are treated consistently, heats of formation and solution and relaxation volumes are obtained that are in good agreement with the available experimental data. Simple trends in the relaxations around the impurities in the various materials can be understood in terms of the size of the impurities compared with the host atoms. Contrary to some commonly used models; the energetics of the impurities are found to be dominated by electronic, rather than elastic, contributions. The defect-induced changes to the local electronic structure are also discussed. C1 KANSAS STATE UNIV AGR & APPL SCI, DEPT PHYS, MANHATTAN, KS 66506 USA. RP CHETTY, N (reprint author), BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA. NR 74 TC 98 Z9 100 U1 1 U2 11 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1098-0121 J9 PHYS REV B JI Phys. Rev. B PD SEP 1 PY 1995 VL 52 IS 9 BP 6313 EP 6326 DI 10.1103/PhysRevB.52.6313 PG 14 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600033 ER PT J AU TOBIN, JG WADDILL, GD JANKOWSKI, AF STERNE, PA PAPPAS, DP AF TOBIN, JG WADDILL, GD JANKOWSKI, AF STERNE, PA PAPPAS, DP TI COMPARISON OF BRANCHING RATIO AND SUM-RULE ANALYSES OF MAGNETIC CIRCULAR-DICHROISM IN X-RAY-ABSORPTION SPECTROSCOPY SO PHYSICAL REVIEW B LA English DT Article ID CORE-LEVEL PHOTOEMISSION; FE/CU(001); NICKEL; FILMS; SPECTRUM; EDGES; FE AB Two localized picture methods of analyzing the magnetic circular dichroism in x-ray absorption will be applied to experimental results: the branching ratio (BR) and sum rule (SR) approaches. A derivation of the BR formulas and detailed comparison to the SR expressions will be made, including error estimations. The BR approach will be seen to be a limiting case form of the SR spin-moment expression and provide a simple picture of the underlying physics in magnetic x-ray circular dichroism absorption in 3d magnetic materials. C1 UNIV MISSOURI,DEPT PHYS,ROLLA,MO 65401. LAWRENCE LIVERMORE NATL LAB,DEPT CHEM & MAT SCI,LIVERMORE,CA 94550. UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616. VIRGINIA COMMONWEALTH UNIV,DEPT PHYS,RICHMOND,VA 23284. RP TOBIN, JG (reprint author), LAWRENCE LIVERMORE NATL LAB,DEPT CHEM,LIVERMORE,CA 94550, USA. RI Tobin, James/O-6953-2015 NR 48 TC 17 Z9 17 U1 0 U2 2 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 SEP 1 PY 1995 VL 52 IS 9 BP 6530 EP 6541 DI 10.1103/PhysRevB.52.6530 PG 12 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600054 ER PT J AU HILL, JP VIGLIANTE, A GIBBS, D PENG, JL GREENE, RL AF HILL, JP VIGLIANTE, A GIBBS, D PENG, JL GREENE, RL TI OBSERVATION OF X-RAY MAGNETIC SCATTERING IN ND2CUO4 SO PHYSICAL REVIEW B LA English DT Article ID PHASE-TRANSITIONS; POLARIZATION; RESONANCE; CU; ND AB We report the observation of resonant x-ray magnetic scattering in Nd2CuO4. The experiments were performed by tuning the incident energy to the Nd L(I), L(II), and L(III) absorption edges. The largest count rates, up to 300 counts per second, were obtained at the LII edge. Antiferromagnetic long-range order is seen below T-Nd = 37 K. Polarization analysis confirms that the scattering is magnetic in origin and consistent with a dipole excitation, suggesting that the Nd 5d bands are polarized. C1 UNIV MARYLAND,DEPT PHYS,CTR SUPERCONDUCT RES,COLLEGE PK,MD 20742. RP HILL, JP (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. RI Hill, John/F-6549-2011 NR 24 TC 32 Z9 32 U1 0 U2 0 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 SEP 1 PY 1995 VL 52 IS 9 BP 6575 EP 6580 DI 10.1103/PhysRevB.52.6575 PG 6 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600058 ER PT J AU CHICO, L FALICOV, LM AF CHICO, L FALICOV, LM TI ELECTRON-SCATTERING AT INTERFACES - A TIGHT-BINDING APPROACH SO PHYSICAL REVIEW B LA English DT Article ID GIANT MAGNETORESISTANCE; FE/CR SUPERLATTICES; MULTILAYERS; ROUGHNESS AB We examine, within the tight-binding approximation, the transmission and reflection coefficients at a bimetallic interface as a function of the interface atomic structure. This is a crucial issue in the study of electronic transport in multilayered system in general, and the so-called giant magnetoresistance in magnetic multilayers in particular. We have investigated the effect of an additional thin layer of a different material at the interface (analogous to delta doping in semiconductors). We find that, depending on the electronic structure of the materials, the reflection coefficient may be either enhanced or suppressed, and that the presence of interface electronic states causes dramatic increases in the reflection coefficient. C1 UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA. RP UNIV CALIF BERKELEY, DEPT PHYS, BERKELEY, CA 94720 USA. RI Chico, Leonor/H-6395-2015 OI Chico, Leonor/0000-0002-7131-1266 NR 16 TC 3 Z9 3 U1 0 U2 5 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD SEP 1 PY 1995 VL 52 IS 9 BP 6640 EP 6646 DI 10.1103/PhysRevB.52.6640 PG 7 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600065 ER PT J AU GENNA, M FALICOV, LM AF GENNA, M FALICOV, LM TI INTERACTION OF 2 LOCALIZED SPINS IN AN ITINERANT FERROMAGNETIC MEDIUM SO PHYSICAL REVIEW B LA English DT Article AB We calculate the indirect interaction of two localized spins within an itinerant ferromagnet, and derive an exact analytic expression when the conduction bands are parabolic. The ground state for two localized spin-1/2 is analyzed for a physical range of parameters. It is shown that the ground state has an unexpected dependence on the net polarization of the itinerant electrons in the case of high itinerant electron density and strong coupling between the localized spins and itinerant electrons. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RP GENNA, M (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 11 TC 0 Z9 0 U1 1 U2 2 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 SEP 1 PY 1995 VL 52 IS 9 BP 6653 EP 6658 DI 10.1103/PhysRevB.52.6653 PG 6 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600067 ER PT J AU VILLAINGUILLOT, S DANDOLOFF, R SAXENA, A BISHOP, AR AF VILLAINGUILLOT, S DANDOLOFF, R SAXENA, A BISHOP, AR TI TOPOLOGICAL SOLITONS AND GEOMETRICAL FRUSTRATION SO PHYSICAL REVIEW B LA English DT Article ID CARBON NANOTUBES; FIELD-THEORY; FERROMAGNETS; SYSTEMS AB We study classical Heisenberg spins coupled by an isotropic or an anisotropic spin-spin interaction on an infinite elastic cylinder. In the continuum limit, the Hamiltonian of the system is given by a nonlinear a model. We investigate the cylindrically symmetric solutions of the sine-Gordon equation (the Euler-Lagrange equation for this Hamiltonian). The periodic solution as well as the anisotropic one-soliton solution do not satisfy the self-dual equations of Bogomol'nyi [Sov. J. Nucl. Phys. 24, 449 (1976)] which are a necessary condition to reach the minimum energy configuration in each homotopy class. This generates geometrical frustration and produces a geometric effect: a shrinking of the cylinder coupled with nontrivial spin distributions. C1 LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545. RP VILLAINGUILLOT, S (reprint author), UNIV CERGY PONTOISE,PHYS STAT GRP,BP 8428,F-95806 CERGY,FRANCE. NR 32 TC 31 Z9 31 U1 0 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 SEP 1 PY 1995 VL 52 IS 9 BP 6712 EP 6722 DI 10.1103/PhysRevB.52.6712 PG 11 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600072 ER PT J AU ZANG, J BISHOP, AR SCHMELTZER, D AF ZANG, J BISHOP, AR SCHMELTZER, D TI FRUSTRATED SPIN-PEIERLS CHAINS SO PHYSICAL REVIEW B LA English DT Article ID ELECTRON-PHONON INTERACTION; ONE-DIMENSIONAL CONDUCTORS; ANTI-FERROMAGNETIC CHAIN; COMPETING INTERACTIONS; MODEL; FORMULATION; DYNAMICS; SYSTEMS AB We study the phase diagram, ground-state properties, and excitation gaps of a frustrated spin-Peierls chain, i.e., a spin-Peierls chain with both nearest-neighbor exchange J(1) and next-nearest-neighbor exchange J(2). The phase diagram is calculated using a bosonization renormalization-group method. We propose a bond-operator mean-field approximation to calculate the ground-state properties and excitation gaps. C1 LOS ALAMOS NATL LAB,CTR NONLINEAR STUDIES,LOS ALAMOS,NM 87545. CUNY CITY COLL,DEPT PHYS,NEW YORK,NY 10031. RP ZANG, J (reprint author), LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. NR 24 TC 22 Z9 22 U1 0 U2 0 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 SEP 1 PY 1995 VL 52 IS 9 BP 6723 EP 6728 DI 10.1103/PhysRevB.52.6723 PG 6 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600073 ER PT J AU DMOWSKI, W MCQUEENEY, RJ EGAMI, T FENG, YP SINHA, SK HINATSU, T UCHIDA, S AF DMOWSKI, W MCQUEENEY, RJ EGAMI, T FENG, YP SINHA, SK HINATSU, T UCHIDA, S TI TEMPERATURE-DEPENDENT X-RAY DIFFUSE-SCATTERING FROM SINGLE-CRYSTALS OF LA2-XSRXCUO4 SO PHYSICAL REVIEW B LA English DT Article ID LOCAL STRUCTURAL-CHANGE; SUPERCONDUCTING TRANSITION; NEUTRON-SCATTERING; DIFFRACTION; STATE; TC; YBA2CU3O7-DELTA; ND2-XCEXCUO4-Y; TL2BA2CACU2O8; BI2SR2CACU2O8 AB X-ray diffuse scattering from single crystals of La2-xSrxCuO4 (x=0.10,0.15,0.20) was studied in the vicinity of several Bragg peaks near the c* axis as a function of temperature. While the diffuse scattering at room temperature is dominated by phonon scattering, at low temperatures residual nonphonon diffuse scattering is clearly seen. The intensity of the residual nonphonon scattering depends upon temperature and composition in a characteristic manner. It is suggested that the nonphonon scattering is due to local lattice distortions induced by charge carriers in these compounds. C1 UNIV PENN, DEPT MAT SCI & ENGN, PHILADELPHIA, PA 19104 USA. UNIV PENN, DEPT PHYS, PHILADELPHIA, PA 19104 USA. EXXON RES & ENGN CO, ANNANDALE, NJ 08801 USA. ARGONNE NATL LAB, ADV PHOTON SOURCE, ARGONNE, IL 60439 USA. UNIV TOKYO, TOKYO 103, JAPAN. RP UNIV PENN, RES STRUCT MATTER LAB, PHILADELPHIA, PA 19104 USA. RI McQueeney, Robert/A-2864-2016 OI McQueeney, Robert/0000-0003-0718-5602 NR 49 TC 27 Z9 27 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD SEP 1 PY 1995 VL 52 IS 9 BP 6829 EP 6839 DI 10.1103/PhysRevB.52.6829 PG 11 WC Physics, Condensed Matter SC Physics GA RU546 UT WOS:A1995RU54600084 ER PT J AU GAINES, JR FEDDERS, PA COLLINS, GW SATER, JD SOUERS, PC AF GAINES, JR FEDDERS, PA COLLINS, GW SATER, JD SOUERS, PC TI DIFFUSION OF ATOMS AND MOLECULES IN THE SOLID HYDROGENS SO PHYSICAL REVIEW B LA English DT Article ID NUCLEAR LONGITUDINAL RELAXATION; TEMPERATURE-DEPENDENCE; SPIN RELAXATION; H-2; D2 AB The ''motional averaging'' of the NMR spectra has been used to determine the diffusion coefficient of molecules in HD, D-T, and T-2 solids. The molecular hop frequency and diffusion coefficient are calculated from the measured spin-spin relaxation time and the rigid lattice second moment. Samples prepared by depositing streams of H-2 or D-2 gas, containing atoms produced by microwave discharge, onto cold substrates, held at 2 K or below are designated ''amorphous'' while those prepared by slow cooling from the liquid state are designated ''crystalline.'' We find that the diffusion in crystalline solids (c-H-2, etc.) is controlled by the number of vacancies in the lattice and have obtained values of the vacancy formation energy, E(V), the barrier height energy, E(b), and the energy of the first tunneling level in the hydrogen potential, E(t), for all the isotopes. The vacancy hopping rate, at the triple point, is approximately the same for all the isotopes. Data for the various isotopes can be compared by scaling the temperature by the quantum parameter. Measurements (by others) on both radiation damaged crystalline (c-H-2) and undamaged amorphous (a-H-2) solids at the atom recombination coefficients are used to extract the atom hop frequency. In c-H-2, we find that the atom and molecule hopping rates are almost identical. Other data on crystalline solids, taken by NMR techniques on ortho to para conversion in solid T-2, yield model dependent atom hop rates. The atom and molecule hopping rates still agree even though the recombination coefficients no longer follow a simple thermally activated form. The recombination coefficients (and hence hopping rates) for crystalline solids differ from those of amorphous solids. C1 WASHINGTON UNIV,DEPT PHYS,ST LOUIS,MO 63130. LAWRENCE LIVERMORE NATL LAB,ICF PROGRAM,LIVERMORE,CA 94550. SHAFFER & ASSOCIATES,PLEASANTON,CA 94550. RP GAINES, JR (reprint author), UNIV HAWAII,DEPT PHYS,HONOLULU,HI 96822, USA. NR 20 TC 11 Z9 11 U1 1 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 SEP 1 PY 1995 VL 52 IS 10 BP 7243 EP 7251 DI 10.1103/PhysRevB.52.7243 PG 9 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300049 ER PT J AU GHOSH, K RAMAKRISHNAN, S DHAR, SK MALIK, SK CHANDRA, G PECHARSKY, VK GSCHNEIDNER, KA HU, Z YELON, WB AF GHOSH, K RAMAKRISHNAN, S DHAR, SK MALIK, SK CHANDRA, G PECHARSKY, VK GSCHNEIDNER, KA HU, Z YELON, WB TI CRYSTAL-STRUCTURES AND LOW-TEMPERATURE BEHAVIORS OF THE HEAVY-FERMION COMPOUNDS CERUGE3 AND CE3RU4GE13 CONTAINING BOTH TRIVALENT AND TETRAVALENT CERIUM SO PHYSICAL REVIEW B LA English DT Article ID MAGNETIC-SUSCEPTIBILITY; CAPACITY; INTERMETALLICS; STANNIDES AB Two different samples of the Ce-Ru-Ge ternary system of nearly the same composition, Ce3Ru4Ge13 and CeRuGe3, have been studied, as well as the compound Y3Co4Ge13, which contained a nonmagnetic rare earth as the reference material. Combined x-ray and neutron-diffraction studies of CeRuGe3 and an x-ray study of Ce3Ru4Ge13 show that we are dealing with internally distorted (probably 3D modulated) crystals with variable composition, i.e., Ce4-xRu4Ge12+x and ranging from at least x=0 (1:1:3) to x=1 (3:4:13). We have measured the de magnetic susceptibility, the ac susceptibility, the zero-magnetic-field heat capacity, the magnetic heat capacity in fields ranging from 0 to 9.85 T, and the electrical resistivity. The paramagnetic susceptibility and x-ray crystallography data indicate that the Ce4-xRu4Ge12+x alloys cotain both trivalent cerium and tetravalent cerium in a 1 to 3 ratio. As far as we are aware, this is the first time such a valence situation has been reported for a cerium compound. In addition, the heat-capacity results show that Ce4-xRu4Ge12+x is. heavy fermion with gamma varying from 428 to 592 mJ/mol Ce3+K2 at the 1:1:3 and 3:4:13 compositions, respectively. Zero-field and magnetic-field heat capacity, and ac magnetic susceptibility data suggest that CeRuGe3 is a spin-glass system below similar to 5 K, which is consistent with the specific features of its crystal structure. Y3Co4Ge13 displays normal metallic behavior. C1 IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT MAT SCI & ENGN,AMES,IA 50011. UNIV MISSOURI,RES CTR,COLUMBIA,MO 65211. RP GHOSH, K (reprint author), TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA. NR 24 TC 26 Z9 26 U1 2 U2 14 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 SEP 1 PY 1995 VL 52 IS 10 BP 7267 EP 7277 DI 10.1103/PhysRevB.52.7267 PG 11 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300052 ER PT J AU COOLEY, JC ARONSON, MC LACERDA, A FISK, Z CANFIELD, PC GUERTIN, RP AF COOLEY, JC ARONSON, MC LACERDA, A FISK, Z CANFIELD, PC GUERTIN, RP TI HIGH MAGNETIC-FIELDS AND THE CORRELATION GAP IN SMB6 SO PHYSICAL REVIEW B LA English DT Article ID FERMI-SURFACE; VALENT SMB6; LAB6; CENISN; STATE; MODEL AB We report the results of electrical resistivity measurements on SmB6 in magnetic fields as large as 18 T and pressures as large as 66 kbar. We find that the activation gap Delta extracted from these measurements has an anomalously weak field dependence, even when pressures of similar to 50 kbar are used to tune h to instability. Our results imply the existence of strong exchange interactions in the low-pressure, gapped state, and argue that Delta originates with many-body correlations. Nonetheless, the small, negative magnetoresistance Delta rho(H)/rho(H=0)proportional to-H-2 observed below 50 kbar is completely accounted for by the weak field variation of Delta. A sign change in the magnetoresistance accompanies the gap collapse, with the high-pressure, gapless metal having Delta rho(H)/rho(H=0)proportional to H-3/2. Th, Fermi surface deduced from these measurements is similar to that of noninteracting, trivalent LaB6, but with a volume which increases rapidly with pressure. C1 LOS ALAMOS NATL LAB, PULSED FACIL, NATL HIGH MAGNET FIELD LAB, LOS ALAMOS, NM 87545 USA. FLORIDA STATE UNIV, NATL HIGH MAGNET FIELD LAB, TALLAHASSEE, FL 32306 USA. IOWA STATE UNIV SCI & TECHNOL, AMES LAB, AMES, IA 50011 USA. TUFTS UNIV, DEPT PHYS, MEDFORD, MA 02155 USA. RP UNIV MICHIGAN, HARRISON M RANDALL LAB PHYS, ANN ARBOR, MI 48109 USA. RI Cooley, Jason/E-4163-2013; Canfield, Paul/H-2698-2014 NR 42 TC 33 Z9 34 U1 4 U2 22 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD SEP 1 PY 1995 VL 52 IS 10 BP 7322 EP 7327 DI 10.1103/PhysRevB.52.7322 PG 6 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300058 ER PT J AU TANG, J GSCHNEIDNER, KA WHITE, SJ ROSER, MR GOODWIN, TJ CORRUCCINI, LR AF TANG, J GSCHNEIDNER, KA WHITE, SJ ROSER, MR GOODWIN, TJ CORRUCCINI, LR TI CE5NI6IN11 - AN INTERMEDIATE HEAVY-FERMION SYSTEM SO PHYSICAL REVIEW B LA English DT Article AB Low-temperature heat capacity, ac and de magnetic susceptibility measurements were conducted on the compound Ce5Ni6In11. The relatively large electronic specific heat coefficient (gamma) of 145+/-20 mJ/mol Ce K-2 indicates that Ce5Ni6In11 is an intermediate heavy fermion. Because of the complex structure of this phase, the true density of states of the Ce atoms which contribute to the highly correlated electron states may be much larger (an estimated upper limit of 320 mJ/mol Ce K-2) than the value derived from gamma=145. The compound undergoes two low-temperature phase transitions at T-N1=0.63 K and T-N2=1.10 K, both being antiferromagnetic in nature. The combined heat capacity, de and ac susceptibility and structural data suggest that the magnetic structure of Ce5Ni6In11 is complex, with the two Ce atoms in the 2(c) sublattice of the unit cell ordering at T-N1 and the eight Ce atoms in the 8(p) sublattice ordering at T-N2. There is also some evidence that there is a weak interaction between the two Ce sublattices. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT MAT SCI & ENGN,AMES,IA 50011. UNIV CALIF DAVIS,DEPT PHYS,DAVIS,CA 95616. RP TANG, J (reprint author), IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011, USA. NR 9 TC 20 Z9 20 U1 0 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 SEP 1 PY 1995 VL 52 IS 10 BP 7328 EP 7333 DI 10.1103/PhysRevB.52.7328 PG 6 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300059 ER PT J AU BORSA, F CARRETTA, P CHO, JH CHOU, FC HU, Q JOHNSTON, DC LASCIALFARI, A TORGESON, DR GOODING, RJ SALEM, NM VOS, KJE AF BORSA, F CARRETTA, P CHO, JH CHOU, FC HU, Q JOHNSTON, DC LASCIALFARI, A TORGESON, DR GOODING, RJ SALEM, NM VOS, KJE TI STAGGERED MAGNETIZATION IN LA(2-X)SR(X)CUO4 FROM LA-139 NQR AND MU-SR - EFFECTS OF SR DOPING IN THE RANGE 0-LESS-THAN-X-LESS-THAN-0.02 SO PHYSICAL REVIEW B LA English DT Article ID PHASE-SEPARATION; LA2CUO4; NMR; SUPERCONDUCTORS; LA2-XSRXCUO4; DIAGRAM; STATES AB We have used La-139 nuclear quadrupole resonance (NQR) and positive muon spin rotation (mu SR) measurements to probe the weakly doped antiferromagnetic (AF) region (x<0.02) of the La2-xSrxCuO4 system below the three-dimensional (3D) AF ordering (Neel) temperature T-N(x) From these measurements, our previous La-139 NQR measurements [F. C. Chou et al.,Phys. Rev. Lett. 71, 2323, (1993)], and auxiliary La-139 nuclear magnetic resonance (NMR) measurements of single-crystal La2CuO4, we have determined the CU2+ Staggered magnetization M(x,T) below T-N(x) Above similar to 30 K, M(x,T) at each T is found to be progressively depressed with increasing x (decreasing T-N); the M(x,0) at T=0, extrapolated from T>30 K, is found from both the NQR and mu SR measurements to follow the same empirical relation M(x,0)/M(0,0)=(1-x/x(c))(n) with x(c)=0.023 and n=0.236. To model the extrapolated values, we assume that the doped holes are mobile and are situated in 1D ''rivers'' of charge which form walls in the CuO2 planes and which separate and uncouple undoped AF domains; an infinite number of these layers are stacked along the c axis. Using linear spin-wave theory and the interplanar and intraplanar CU2+ AF exchange interactions found from neutron-scattering measurements on La2CuO4, we calculated M(x,0) for this hoped hole and CU2+ spin configuration and find good agreement with the above extrapolated T=0 values. Thus, in the AF region x<0.02 of the phase diagram of La2-xSrxCuO4, these results support the previous hypothesis that microsegregation of the (mobile) doped holes into domain walls occurs above similar to 30 K, consistent with the phase separation phenomenology of Emery and Kivelson. Below similar to 30 K, an anomalous increase in M(x,T) is observed in La2-xSrxCuO4, particularly for the larger x values approaching x=0.02, such that M(x,T) is nearly independent of x as T --> 0 and is therefore about the same as the T --> 0 value observed for undoped La2CuO4. We interpret this effect as arising from localization of the doped holes below similar to 30 K, whereby localized doped holes are much less effective in reducing Mi than mobile holes. In support of this hypothesis, we find that the width of the La-139 NQR 2 nu(Q) line in La2-xSrxCuO4 is nearly independent of temperature below 4.2 K and increases linearly with x for x<0.02. We present new mu SR measurements to support the idea that the effective spin degrees of freedom associated with the localized doped holes undergo a continuous freezing at T-j approximate to(815 K)x, as opposed to a cooperative phase transition, superimposed on the preexisting AF long-range order. C1 IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011. QUEENS UNIV,DEPT PHYS,KINGSTON,ON K7L 3N6,CANADA. RP BORSA, F (reprint author), UNIV PAVIA,DIPARTIMENTO FIS A VOLTA,I-27100 PAVIA,ITALY. NR 24 TC 143 Z9 143 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 SEP 1 PY 1995 VL 52 IS 10 BP 7334 EP 7345 DI 10.1103/PhysRevB.52.7334 PG 12 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300060 ER PT J AU SONNTAG, P BODEKER, P THURSTON, T ZABEL, H AF SONNTAG, P BODEKER, P THURSTON, T ZABEL, H TI CHARGE-DENSITY WAVES AND STRAIN WAVES IN THIN EPITAXIAL CR(001) FILMS ON NB SO PHYSICAL REVIEW B LA English DT Article ID CRYSTAL CO/CR(001) SUPERLATTICES; METAL SUPER-LATTICES; GROWTH; CHROMIUM; LAYERS AB We have investigated the magnetic structure of thin epitaxial (001)-oriented Cr films grown on a Nb buffer layer on sapphire. By means of x-ray diffraction measurements the charge density waves (CDW) and strain waves (SW) in Cr films with thicknesses between 500 and 3000 Angstrom have been studied. The results show that there exists an orientational pinning effect at both the Cr surface and the interface between Cr and the Nb buffer layer which causes an enlargement of the CDW-SW period, and a single a domain mode having a q vector pointing perpendicular to the surface. This pinning behavior relaxes with increasing film thickness. C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. RP SONNTAG, P (reprint author), RUHR UNIV BOCHUM,INST PHYS EXPTL,UNIV STR 150,D-44780 BOCHUM,GERMANY. RI Zabel, Hartmut/C-1994-2009 NR 28 TC 24 Z9 24 U1 0 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 SEP 1 PY 1995 VL 52 IS 10 BP 7363 EP 7368 DI 10.1103/PhysRevB.52.7363 PG 6 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300063 ER PT J AU WANG, ZR JOHNSTON, DC MILLER, LL VAKNIN, D AF WANG, ZR JOHNSTON, DC MILLER, LL VAKNIN, D TI STATIC MAGNETIZATION AND AC SUSCEPTIBILITY MEASUREMENTS OF THE COPPER-OXYGEN CLUSTER COMPOUND BACUO2+X SO PHYSICAL REVIEW B LA English DT Article ID OXIDES; SUPERCONDUCTIVITY; FERROMAGNETISM; LA4BA2CU2O10; DIFFRACTION; MAGNETISM; Y2BACUO5; LA2CUO4; CRYSTAL; LI2CUO2 AB Static magnetization M and ac magnetic susceptibility measurements in applied magnetic fields H up to 55 kG are reported for a polycrystalline He-annealed sample of BaCuO2+x with x = 0.1 +/- 0.1. This compound has a large body-centered-cubic unit cell (a(0) = 18.29 Angstrom) containing 90 formula units. The cell contains six lone CuO4 units, two Cu18O24 Sphere clusters, and eight Cu6O12 ring clusters. Clear evidence of long-range antiferromagnetic (AF) ordering at a Neel temperature T-N similar to 15 K was found. From detailed analyses of isothermal M(H) data at 2 K and static magnetic susceptibility data from 2 to 400 K, the following model for the magnetic properties of BaCuO2+x, emerged. The oxidation state of the copper is +2, and each CU+2 ion carries a spin S-Cu = 1/2. The Cu-18 sphere clusters and Cu-6 ring clusters both have ferromagnetic ground states with spins S-s = 9 and S-r = 3, respectively, with lower spin excited states. The ferromagnetic intracluster interactions arise from a Cu-O-Cu superexchange pathway with a nearly 90 degrees bond angle; within the sphere and ring clusters, the Cu-Cu superexchange coupling constants are 2J(S)/k(B) = (80 +/- 16) K and 2J(r)/k(B) = (290 +/- 60) K, respectively. The clusters are in their ground states below similar to 40 K. The AF ordering at T-N arises from AF ordering of the Cu-6 spin 3 magnetic moments only; this aspect of our model has been confirmed by magnetic neutron-diffraction measurements. Remarkably, the Cuts clusters and lone Cu ions do not participate in this ordering and remain paramagnetic down to at least 2 K. Each Cu-18 cluster is antiferromagnetically coupled to three lone Cu ions, and each lone Cu ion to one Cu-18 cluster, with AF coupling constant 2J(AF)/k(B) = -0.33 K. The Cuts clusters (with spin S-S = 9) are predicted to undergo ferromagnetic intercluster ordering below similar to 1 K. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011. RP WANG, ZR (reprint author), IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011, USA. RI Vaknin, David/B-3302-2009 OI Vaknin, David/0000-0002-0899-9248 NR 47 TC 17 Z9 17 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 SEP 1 PY 1995 VL 52 IS 10 BP 7384 EP 7394 DI 10.1103/PhysRevB.52.7384 PG 11 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300066 ER PT J AU ABRIKOSOV, AA AF ABRIKOSOV, AA TI C-AXIS NORMAL CONDUCTIVITY OF YBA2CU3OX AS A FUNCTION OF X SO PHYSICAL REVIEW B LA English DT Note ID HIGH-TEMPERATURE SUPERCONDUCTORS; VALENCE-BOND STATE; NORMAL TRANSPORT; DIAGNOSTICS; GAP AB A theory is presented of the static c-axis conductivity of YBa2Cu3O7-delta in the normal state with varying oxygen concentration. The basis of the theory is an assumption that the hopping of electrons between the CuO2 planes is due to resonant tunneling through localized centers between the planes. Comparison with recent systematic determinations of the temperature-dependent conductivity at different oxygen concentrations shows reasonable agreement. RP ABRIKOSOV, AA (reprint author), ARGONNE NATL LAB,DIV MAT SCI,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 12 TC 32 Z9 32 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 SEP 1 PY 1995 VL 52 IS 10 BP R7026 EP R7029 PG 4 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300021 ER PT J AU ANISIMOV, VI ALBERS, RC WILLS, JM ALOUANI, M WILKINS, JW AF ANISIMOV, VI ALBERS, RC WILLS, JM ALOUANI, M WILKINS, JW TI PREDICTION OF AN UNDIMERIZED, INSULATING, ANTIFERROMAGNETIC GROUND-STATE IN HALOGEN-BRIDGED LINEAR-CHAIN NI COMPOUNDS SO PHYSICAL REVIEW B LA English DT Note ID METAL-COMPLEXES AB A parameter-free, mean-field, multiorbital Hubbard model with nonspherical Coulomb and exchange interactions, implemented around all-electron local-density-approximation calculations, correctly predicts the bandgap energy, the absence of dimerization, and the antiferromagnetic ground state of halogen-bridged linear-chain Ni compounds. This approach also reproduces the insulating ground state and dimerization in PtX linear-chain compounds in agreement with experiment and previous calculations. C1 OHIO STATE UNIV,DEPT PHYS,COLUMBUS,OH 43210. RP ANISIMOV, VI (reprint author), LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545, USA. RI Alouani, Mebarek/A-9101-2011; Anisimov, Vladimir/K-1235-2013 OI Alouani, Mebarek/0000-0002-7985-5276; Anisimov, Vladimir/0000-0002-1087-1956 NR 20 TC 3 Z9 3 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 SEP 1 PY 1995 VL 52 IS 10 BP R6975 EP R6978 PG 4 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300008 ER PT J AU JACOBS, T WILLEMSEN, BA SRIDHAR, S NAGARAJAN, R GUPTA, LC HOSSAIN, Z MAZUMDAR, C CANFIELD, PC CHO, BK AF JACOBS, T WILLEMSEN, BA SRIDHAR, S NAGARAJAN, R GUPTA, LC HOSSAIN, Z MAZUMDAR, C CANFIELD, PC CHO, BK TI MICROWAVE PROPERTIES OF BOROCARBIDE SUPERCONDUCTORS RNI(2)B(2)C (R=Y,ER,TM,HO) SO PHYSICAL REVIEW B LA English DT Note ID SURFACE AB We report measurements of the microwave surface impedance of the borocarbide family of superconductors RNi(2)B(2)C(R=Y,Er,Tm,Ho). The experiments enable direct measurements of the superfluid density, and are particularly sensitive to the influence of magnetic pair breaking. In HoNi2B2C the antiferromagnetic transition is clearly observed at zero field, and leads to a drastic reduction of the superfluid density, which recovers at lower temperatures. In ErNi2B2C the antiferromagnetic transition is not seen in zero-field data. Magnetic effects are responsible for anomalies in the low-temperature surface impedance below approximately 4 K in HoNi2B2C and TmNi2B2C. The temperature dependence of the microwave impedance disagrees with BCS calculations. C1 TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA. IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011. RP JACOBS, T (reprint author), NORTHEASTERN UNIV,DEPT PHYS,BOSTON,MA 02115, USA. RI Sridhar, Srinivas/A-3688-2012; Canfield, Paul/H-2698-2014 NR 23 TC 33 Z9 33 U1 0 U2 0 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 SEP 1 PY 1995 VL 52 IS 10 BP R7022 EP R7025 PG 4 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300020 ER PT J AU NEUMEIER, JJ HUNDLEY, MF THOMPSON, JD HEFFNER, RH AF NEUMEIER, JJ HUNDLEY, MF THOMPSON, JD HEFFNER, RH TI SUBSTANTIAL PRESSURE EFFECTS ON THE ELECTRICAL-RESISTIVITY AND FERROMAGNETIC TRANSITION-TEMPERATURE OF LA1-XCAXMNO3 SO PHYSICAL REVIEW B LA English DT Note ID MAGNETORESISTANCE AB The influence of hydrostatic pressure on the electrical resistivity rho and ferromagnetic transition temperature T-c of La1-xCaxMnO3 is presented for x = 0.21, 0.33, and 0.40. Pressure strongly decreases rho and drives T-c up at rates as large as +37 WGPa for the x=0.21 specimen; this is significantly larger than dT(c)/dP values observed in conventional ferromagnets and about eight times larger than dT(N)/dP observed in Ca1-xSrxMnO3 antiferromagnets. The transport mechanism in these oxides is influenced in a qualitatively similar way by both pressure and magnetic field. The results are interpreted in the framework of the double-exchange interaction involving conduction via magnetic polarons. RP NEUMEIER, JJ (reprint author), LOS ALAMOS NATL LAB,MST-10,MAIL STOP K764,LOS ALAMOS,NM 87545, USA. NR 27 TC 226 Z9 227 U1 2 U2 8 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 SEP 1 PY 1995 VL 52 IS 10 BP R7006 EP R7009 PG 4 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300016 ER PT J AU SINKOVIC, B JOHNSON, PD BROOKES, NB CLARKE, A SMITH, NV AF SINKOVIC, B JOHNSON, PD BROOKES, NB CLARKE, A SMITH, NV TI SPIN-POLARIZED AUGER-ELECTRON DIFFRACTION STUDY OF THE MAGNETIC POISONING OF FE(001) BY SULFUR SO PHYSICAL REVIEW B LA English DT Note ID X-RAY PHOTOELECTRON; LINE-SHAPES; SPECTROSCOPY; PHOTOEMISSION; SCATTERING; ABSORPTION; SURFACES; INTERFACE; ADSORBATE; EMISSION AB Spin-polarized angle-resolved sulfur L(2,3)VV Auger-electron spectra have been recorded for the c(2 x 2)S/Fe(001) system. The data show the modulation of the sulfur Auger spin polarization as a function of emission angle, which represents an observation of spin-polarized Auger-electron diffraction (SPAED), a potentially powerful tool for the study of local magnetic structure at surfaces, interfaces, and thin films. Theoretical modeling of the SPAED data indicates a large decrease in the magnetization of the top iron layer, suggesting a magnetic poisoning induced by the sulfur overlayer. These findings are independently supported by the observation of a large decrease of secondary electron spin polarization upon sulfur adsorption. C1 BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,ADV LIGHT SOURCE,BERKELEY,CA 94720. RP SINKOVIC, B (reprint author), NYU,DEPT PHYS,4 WASHINGTON PL,NEW YORK,NY 10003, USA. NR 35 TC 17 Z9 17 U1 0 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 SEP 1 PY 1995 VL 52 IS 10 BP R6955 EP R6958 PG 4 WC Physics, Condensed Matter SC Physics GA RU943 UT WOS:A1995RU94300003 ER PT J AU BECVAR, F CEJNAR, P HONZATKO, J KONECNY, K TOMANDL, I CHRIEN, RE AF BECVAR, F CEJNAR, P HONZATKO, J KONECNY, K TOMANDL, I CHRIEN, RE TI E1 AND M1 STRENGTHS STUDIED FROM 2-STEP GAMMA-CASCADES FOLLOWING CAPTURE OF THERMAL-NEUTRONS IN DY-162 SO PHYSICAL REVIEW C LA English DT Article ID RESONANCE; MODEL AB Spectra of two-step gamma-ray cascades following the thermal-neutron capture in the Dy-162 target were measured. Based on a rigorous modeling procedure, the experimental results are compared with their various theoretical predictions. A satisfactory agreement is reached for the E1 strength function described by the Brink-Axel model and the M1 strength function containing a resonance component at E(gamma)approximate to 3 MeV. A possible interpretation of this component in terms of the M1 scissors resonance is discussed. C1 INST NUCL PHYS,CR-25068 PRAGUE,CZECH REPUBLIC. BROOKHAVEN NATL LAB,UPTON,NY 11973. RP BECVAR, F (reprint author), CHARLES UNIV,FAC MATH & PHYS,CR-18000 PRAGUE,CZECH REPUBLIC. RI Tomandl, Ivo/G-7816-2014 NR 34 TC 41 Z9 41 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1278 EP 1294 DI 10.1103/PhysRevC.52.1278 PG 17 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300017 ER PT J AU CIZEWSKI, JA BIJKER, R BECKER, JA BRINKMAN, MJ HENRY, EA STEPHENS, FS DELEPLANQUE, MA DIAMOND, RM AF CIZEWSKI, JA BIJKER, R BECKER, JA BRINKMAN, MJ HENRY, EA STEPHENS, FS DELEPLANQUE, MA DIAMOND, RM TI SPIN-ROTOR INTERPRETATION OF IDENTICAL BANDS AND QUANTIZED ALIGNMENT IN SUPERDEFORMED A-APPROXIMATE-TO-190 NUCLEI SO PHYSICAL REVIEW C LA English DT Article ID PSEUDOSPIN SYMMETRY; HG-192; INERTIA AB The ''identical'' bands in superdeformed mercury, thallium, and lead nuclei are interpreted as examples of orbital angular momentum rotors with the weak spin-orbit coupling of pseudo-SU(3) symmetries and supersymmetries. C1 NATL AUTONOMOUS UNIV MEXICO,INST CIENCIAS NUCL,MEXICO CITY 04510,DF,MEXICO. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. LAWRENCE BERKELEY LAB,BERKELEY,CA 94750. RP CIZEWSKI, JA (reprint author), RUTGERS STATE UNIV,DEPT PHYS & ASTRON,NEW BRUNSWICK,NJ 08903, USA. NR 37 TC 6 Z9 6 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1307 EP 1314 DI 10.1103/PhysRevC.52.1307 PG 8 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300020 ER PT J AU BUTERMOORE, K ARYAEINEJAD, R COLE, JD DARDENNE, Y GREENWOOD, RG HAMILTON, JH RAMAYYA, AV MA, WC BABU, BRS RASMUSSEN, JO STOYER, MA CHU, SY GREGORICH, KE MOHAR, M ASZTALUS, S PRUSSIN, SG MOODY, KJ LOUGHEED, RW WILD, JF AF BUTERMOORE, K ARYAEINEJAD, R COLE, JD DARDENNE, Y GREENWOOD, RG HAMILTON, JH RAMAYYA, AV MA, WC BABU, BRS RASMUSSEN, JO STOYER, MA CHU, SY GREGORICH, KE MOHAR, M ASZTALUS, S PRUSSIN, SG MOODY, KJ LOUGHEED, RW WILD, JF TI EVIDENCE OF UNIQUE-PARITY BAND-STRUCTURE IN NEUTRON-RICH ODD-A RU ISOTOPES SO PHYSICAL REVIEW C LA English DT Article ID HIGH-SPIN STATES; NUCLEI; DEFORMATION; FISSION; CF-252; MODEL AB With prompt gamma-ray and x-ray spectroscopy on fission fragments, several new transitions in Ru-109,Ru-111 have been identified. Angular correlation analysis of several of the new transitions yield evidence of a stretched E2 band structure. Qualitative Nilsson model arguments, systematics, and triaxial rotor+particle calculations support our hypothesis that the observed band is built on the unique parity nu h(11/2) orbital. C1 VANDERBILT UNIV,DEPT PHYS,NASHVILLE,TN 37235. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT NUCL ENGN,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. RP BUTERMOORE, K (reprint author), IDAHO NATL ENGN LAB,IDAHO FALLS,ID 83415, USA. NR 15 TC 0 Z9 0 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1339 EP 1347 PG 9 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300023 ER PT J AU LU, QH BUTLERMOORE, K ZHU, SJ HAMILTON, JH RAMAYYA, AV OBERACKER, VE MA, WC BABU, BRS DENG, JK KORMICKI, J COLE, JD ARYAEINEJAD, R DARDENNE, YX DRIGERT, M PEKER, LK RASMUSSEN, JO STOYER, MA CHU, SY GREGORICH, KE LEE, IY MOHAR, MF NITSCHKE, JM JOHNSON, NR MCGOWAN, FK TERAKOPIAN, GM OGANESSIAN, YT GUPTA, JB AF LU, QH BUTLERMOORE, K ZHU, SJ HAMILTON, JH RAMAYYA, AV OBERACKER, VE MA, WC BABU, BRS DENG, JK KORMICKI, J COLE, JD ARYAEINEJAD, R DARDENNE, YX DRIGERT, M PEKER, LK RASMUSSEN, JO STOYER, MA CHU, SY GREGORICH, KE LEE, IY MOHAR, MF NITSCHKE, JM JOHNSON, NR MCGOWAN, FK TERAKOPIAN, GM OGANESSIAN, YT GUPTA, JB TI STRUCTURE OF RU-108,RU-110,RU-112 - IDENTICAL BANDS IN RU-108,RU-110 SO PHYSICAL REVIEW C LA English DT Article ID NEUTRON-RICH NUCLEI; COLLECTIVE STRUCTURE; FISSION; REGION; CF-252 AB The levels in Ru-108,Ru-110,Ru-112 have been investigated in the spontaneous fission of Cf-252 using gamma-gamma-gamma-, gamma-gamma-, x-x-, x-gamma-, and x-gamma-gamma-coincidence techniques. The levels up to 16(+) and 9(+) in the yrast bands and gamma-vibrational bands have been identified with very little energy staggering in Ru-108,Ru-110,Ru-112. The ground bands in Ru-108,Ru-110 have identical gamma-ray transition energies up to 8(+). These are the lightest observed even-even nuclei with extended identical ground bands. Calculations in a collective model which includes rotations and vibrations reproduce the level energies and gamma band branching ratios above the 3(+) state rather well, while rigid triaxial rotor model calculations reproduce the branching ratios for the 2(+) and 3(+) states. C1 IDAHO NATL ENGN LAB,IDAHO FALLS,ID 83415. TSING HUA UNIV,DEPT PHYS,BEIJING 100084,PEOPLES R CHINA. BROOKHAVEN NATL LAB,UPTON,NY 11973. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. OAK RIDGE NATL LAB,DIV PHYS,OAK RIDGE,TN 37831. JOINT INST HEAVY ION RES,GN FLEROV LAB NUCL REACT,DUBNA,RUSSIA. UNIV DELHI,RAMJAS COLL,DEPT PHYS,DELHI 110007,INDIA. ORISE,UNISOR,OAK RIDGE,TN 37831. RP LU, QH (reprint author), VANDERBILT UNIV,DEPT PHYS,NASHVILLE,TN 37235, USA. NR 19 TC 69 Z9 73 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1348 EP 1354 DI 10.1103/PhysRevC.52.1339 PG 7 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300024 ER PT J AU NISIUS, D JANSSENS, RVF BEARDEN, IG MAYER, RH AHMAD, I BHATTACHARYYA, P CROWELL, B CARPENTER, MP DALY, PJ DAVIDS, CN GRABOWSKI, ZW HENDERSON, DJ HENRY, RG HERMANN, R KHOO, TL LAURITSEN, T PENTTILA, HT CISZEWSKI, L ZHANG, CT AF NISIUS, D JANSSENS, RVF BEARDEN, IG MAYER, RH AHMAD, I BHATTACHARYYA, P CROWELL, B CARPENTER, MP DALY, PJ DAVIDS, CN GRABOWSKI, ZW HENDERSON, DJ HENRY, RG HERMANN, R KHOO, TL LAURITSEN, T PENTTILA, HT CISZEWSKI, L ZHANG, CT TI CONVERSION ELECTRON-SPECTROSCOPY AT THE FRAGMENT MASS ANALYZER FOCAL-PLANE - STUDIES OF ISOMERIC DECAYS NEAR THE PROTON DRIP-LINE SO PHYSICAL REVIEW C LA English DT Article ID SENIORITY ISOMERISM; NUCLEI; ER-150(68)82; EXCITATIONS; STATES; N=81 AB The decays of seniority isomers in the N=82 nuclei Er-150 and Yb-152 and in their respective N=81 isotopes Er-149 and Yb-151 were studied following mass separation by the Argonne Fragment Mass Analyzer. Conversion electrons were detected with Si p-i-n diodes operated at room temperature. The low-energy isomeric transitions in Yb-151,Yb-152 have been observed for the first time in the electron spectra. Multipolarity assignments were made for many of the decay gamma rays of the four nuclei. C1 ARGONNE NATL LAB,ARGONNE,IL 60439. RP NISIUS, D (reprint author), PURDUE UNIV,W LAFAYETTE,IN 47907, USA. RI Penttila, Heikki/A-4420-2013; Bearden, Ian/M-4504-2014; Carpenter, Michael/E-4287-2015 OI Bearden, Ian/0000-0003-2784-3094; Carpenter, Michael/0000-0002-3237-5734 NR 18 TC 8 Z9 8 U1 1 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1355 EP 1360 DI 10.1103/PhysRevC.52.1355 PG 6 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300025 ER PT J AU RAMAN, S SHEIKH, JA BHATT, KH AF RAMAN, S SHEIKH, JA BHATT, KH TI DEFORMATION OF LIGHT XENON ISOTOPES SO PHYSICAL REVIEW C LA English DT Article ID THOMAS-FERMI APPROACH; NUCLEAR-MASS FORMULA; EVEN-EVEN NUCLEI; GROUND-STATE PROPERTIES; MEAN-FIELD-THEORY; HIGH-SPIN; QUADRUPOLE-MOMENTS; EXOTIC NUCLEI; 2+ STATE; VALUES AB Recently measured B(E2;0(1)(+) --> 2(1)(+)) values for the Light xenon (Z=54) isotopes show a marked increase in deformation as the neutron numbers approach the midshell value of N=66. At first sight, this behavior is anomalous because the 2: level energies are nearly the same for these isotopes. Moreover, this increase is not readily explained by several nuclear models that assign single shells to valence protons and neutrons. In particular, the single-shell asymptotic Nilsson model with current parameters seriously underpredicts the B(E2;0(1)(+) --> 2(1)(+)) values for Xe-118(64), Xe-120(66), and Xe-122(68). On the other hand, several modem multishell models correctly predict these values. We examine the latter results more closely to find ways in which the single-shell asymptotic Nilsson model can be revised to correctly reproduce the measurements. We also show that the B(E2;0(1)(+) --> 2(1)(+)) values for Lighter (N<66) barium isotopes, when they are measured, will test the predictive power of existing systematics and modeling of quadrupole deformations in nuclei. C1 JOINT INST HEAVY ION RES,OAK RIDGE,TN 37831. UNIV MISSISSIPPI,DEPT PHYS & ASTRON,UNIVERSITY,MS 38677. RP RAMAN, S (reprint author), OAK RIDGE NATL LAB,OAK RIDGE,TN 37831, USA. NR 73 TC 35 Z9 35 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1380 EP 1393 DI 10.1103/PhysRevC.52.1380 PG 14 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300028 ER PT J AU CHU, SY RASMUSSEN, JO STOYER, MA RING, P CANTO, LF AF CHU, SY RASMUSSEN, JO STOYER, MA RING, P CANTO, LF TI MULTIPARTICLE-ROTOR MODEL FOR ROTATIONAL BAND-STRUCTURE OF GD-154 SO PHYSICAL REVIEW C LA English DT Article ID CORIOLIS ATTENUATION PROBLEM; ENERGIES AB Band-crossing phenomena in the high-spin region of deformed nuclei are studied in this paper. The power of modem computers for large-matrix diagonalization (up to 17 527X17 527) is exploited in a multinucleon-plus-rotor model. The interesting test case of Gd-154 is treated in this paper. Though a small basis set of 9-18 Nilsson orbitals is used, the strict angular momentum and particle number conservation guarantees superior orthogonal microscopic wave functions for nucleon transfer calculations. This method takes account of pairing correlations among the valence particles and shows the effects of quadrupole pairing and the usually neglected j . j recoil terms. C1 TECH UNIV MUNICH,D-85748 GARCHING,GERMANY. UNIV FED RIO DE JANEIRO,BR-21945 RIO JANEIRO,BRAZIL. RP CHU, SY (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. RI Canto, Luiz /I-3733-2012; Ring, Peter/O-1638-2015 NR 29 TC 5 Z9 5 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1407 EP 1418 DI 10.1103/PhysRevC.52.1407 PG 12 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300030 ER PT J AU HANOLD, KA BAZIN, D MOHAR, MF MORETTO, LG MORRISSEY, DJ ORR, NA SHERRILL, BM WINGER, JA WOZNIAK, GJ YENNELLO, SJ AF HANOLD, KA BAZIN, D MOHAR, MF MORETTO, LG MORRISSEY, DJ ORR, NA SHERRILL, BM WINGER, JA WOZNIAK, GJ YENNELLO, SJ TI HEAVY RESIDUES FROM VERY MASS-ASYMMETRIC HEAVY-ION REACTIONS SO PHYSICAL REVIEW C LA English DT Article ID COMPLEX-FRAGMENT EMISSION; COMPOUND-NUCLEUS DECAY; C-12 INDUCED REACTIONS; PROTON-DRIP LINE; EXCITATION-FUNCTIONS; MULTIFRAGMENT PRODUCTION; CENTRAL COLLISIONS; INCOMPLETE FUSION; E/A=27 MEV; MEV/NUCLEON AB The isotopic production cross sections and momenta of all residues with nuclear charge greater than 39 from the reaction of 26, 40, and 50 MeV/nucleon Xe-129+Be, C, and Al were measured. The isotopic cross sections, the momentum distribution for each isotope, and the cross section as a function of nuclear charge and momentum are presented here. The new cross sections are consistent with previous measurements of the cross sections from similar reaction systems. The results are compared to a geometric incomplete fusion model and a Boltxmann-Nordheim-Vlasov model. Agreement between the models and the data is fair. The most proton-rich nuclei observed in this study are predicted to have less than 50 nb production cross sections by both of these models but are observed to have much larger cross sections. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. MICHIGAN STATE UNIV,NATL SUPERCONDUCTING CYCLOTRON LAB,E LANSING,MI 48824. MICHIGAN STATE UNIV,DEPT CHEM,E LANSING,MI 48824. MICHIGAN STATE UNIV,DEPT PHYS,E LANSING,MI 48824. RI Sherrill, Bradley/B-4098-2009; Sherrill, Bradley/B-3378-2011; Yennello, Sherry/B-5803-2015 OI Yennello, Sherry/0000-0003-3963-5217 NR 65 TC 19 Z9 19 U1 1 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1462 EP 1483 DI 10.1103/PhysRevC.52.1462 PG 22 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300035 ER PT J AU CARLTON, RF HARVEY, JA HILL, NW AF CARLTON, RF HARVEY, JA HILL, NW TI TOTAL CROSS-SECTION AND RESONANCE SPECTROSCOPY FOR N+SN-122 SO PHYSICAL REVIEW C LA English DT Article ID OPTICAL-MODEL; TIN ISOTOPES; SCATTERING; DEPENDENCE; NEUTRONS; AVERAGE AB The neutron total cross section of Sn-122 has been measured over the energy range 0.013 to 0.310 MeV. An R-matrix analysis has been performed to obtain resonance and average parameters which provide for a complete representation of the neutron entrance channels for the S-1/2 P-1/2 and P-1/2 contributions. The conventional s- and p-neutron strength functions have been determined to be 0.123 +/- 0.023 and 2.0 +/- 0.2, respectively (in units of 10(-4)). Limits are placed on the average level spacings and strength functions for the individual partial wave components. The s-wave potential scattering radius has been determined to be 6.3 +/- 0.1 fm. Average scattering functions, deduced from the average parameters, have been used to determine the real well depth of an optical model potential which reproduces these functions. We find, as have others, that the real well depth is parity dependent. C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. RP CARLTON, RF (reprint author), MIDDLE TENNESSEE STATE UNIV,DEPT PHYS & ASTRON,MURFREESBORO,TN 37132, USA. NR 20 TC 3 Z9 3 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1498 EP 1509 DI 10.1103/PhysRevC.52.1498 PG 12 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300038 ER PT J AU JONES, CE ARRINGTON, J BEISE, EJ BRAY, B CARR, RW FILIPPONE, BW GAO, H LUNG, A MCKEOWN, RD MUELLER, B PITT, ML DESCHEPPER, D DODSON, G DOW, K ENT, R FARKHONDEH, M HANSEN, JO KORSCH, W KRAMER, LH LEE, K MAKINS, NCR MILNER, RG TIEGER, DR WELCH, TP CANDELL, E NAPOLITANO, J TRIPP, C WOJTSEKHOWSKI, BB LORENZON, W AF JONES, CE ARRINGTON, J BEISE, EJ BRAY, B CARR, RW FILIPPONE, BW GAO, H LUNG, A MCKEOWN, RD MUELLER, B PITT, ML DESCHEPPER, D DODSON, G DOW, K ENT, R FARKHONDEH, M HANSEN, JO KORSCH, W KRAMER, LH LEE, K MAKINS, NCR MILNER, RG TIEGER, DR WELCH, TP CANDELL, E NAPOLITANO, J TRIPP, C WOJTSEKHOWSKI, BB LORENZON, W TI MEASUREMENT OF THE SPIN-DEPENDENT ASYMMETRY (3)(HE)OVER-BAR((E)OVER-BAR,E') INELASTIC-SCATTERING AT LOW-ENERGY TRANSFER SO PHYSICAL REVIEW C LA English DT Article ID QUASI-ELASTIC SCATTERING; ELECTRON-SCATTERING; POLARIZED HE-3; FORM-FACTORS; NUCLEI; SYSTEM AB We present the results of a measurement of the spin-dependent asymmetry in (3) ($) over right arrow H ($) over right arrow e(($) over right arrow e,e') inelastic scattering at kinematics on the low-energy transfer side of the quasielastic peak, including the region near the breakup threshold. Comparison with existing calculations based upon the plane wave impulse approximation shows significant deviation between the data and the model near the breakup threshold. Good agreement between data and theory is seen at higher energy transfer. C1 CALTECH,PASADENA,CA 91125. MIT,NUCL SCI LAB,BATES LINEAR ACCELERATOR CTR,CAMBRIDGE,MA 02139. MIT,DEPT PHYS,CAMBRIDGE,MA 02139. RENSSELAER POLYTECH INST,TROY,NY 12180. TRIUMF,VANCOUVER,BC V6T 2A3,CANADA. RP JONES, CE (reprint author), ARGONNE NATL LAB,9700 S CASS AVE,ARGONNE,IL 60439, USA. RI Gao, Haiyan/G-2589-2011; Arrington, John/D-1116-2012 OI Arrington, John/0000-0002-0702-1328 NR 23 TC 6 Z9 6 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1520 EP 1523 DI 10.1103/PhysRevC.52.1520 PG 4 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300041 ER PT J AU HOREN, DJ BEENE, JR SATCHLER, GR AF HOREN, DJ BEENE, JR SATCHLER, GR TI FOLDED POTENTIAL ANALYSIS OF THE EXCITATION OF GIANT-RESONANCES BY HEAVY-IONS SO PHYSICAL REVIEW C LA English DT Article ID COUPLED-CHANNELS CALCULATIONS; MULTIPOLE RESONANCES; QUADRUPOLE-RESONANCE; COULOMB-EXCITATION; ISOSPIN CHARACTER; PHOTON DECAY; SCATTERING; PB-208; STATES AB Measurements of the excitation of nuclear giant resonances by heavy-ion inelastic scattering have previously been analyzed using the deformed optical potential model. Here we reexamine these data using a folded potential model which employs a simple, but effective, nucleon-nucleon interaction that was deduced recently from heavy-ion elastic scattering measurements. The resulting estimates of the sum-rule exhaustion by the giant quadrupole resonance increase by amounts ranging from about 20% for the lighter targets to no change for (208)pb. Applying the same model to data for excitation of the giant monopole resonance, we find that these transitions overexhaust the corresponding sum rule even more than previously indicated. C1 OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA. RP UNIV CONNECTICUT, DEPT PHYS, STORRS, CT 06269 USA. NR 27 TC 12 Z9 12 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1554 EP 1564 DI 10.1103/PhysRevC.52.1554 PG 11 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300044 ER PT J AU RUSEK, A BASSALLECK, B BERDOZ, A BURGER, T BURGER, M CHRIEN, RE DIEBOLD, GE ENYO, H FISCHER, H FRANKLIN, GB FRANZ, J IIJIMA, T IMAI, K LOWE, J MAGAHIZ, R MASAIKE, A MEYER, CA MCCRADY, R MERRILL, F MIHARA, S NELSON, JM OKADA, K PILE, PH QUINN, B ROSSLE, E SAITO, N SAWAFTA, R SCHMITT, H SCHUMACHER, RA STEARNS, RL STOTZER, R SUKATON, R SUTTER, R TAKEUTCHI, F WOLFE, DM YAMAMOTO, K YAMASHITA, S YOKKAICHI, S ZEPS, V ZYBERT, R AF RUSEK, A BASSALLECK, B BERDOZ, A BURGER, T BURGER, M CHRIEN, RE DIEBOLD, GE ENYO, H FISCHER, H FRANKLIN, GB FRANZ, J IIJIMA, T IMAI, K LOWE, J MAGAHIZ, R MASAIKE, A MEYER, CA MCCRADY, R MERRILL, F MIHARA, S NELSON, JM OKADA, K PILE, PH QUINN, B ROSSLE, E SAITO, N SAWAFTA, R SCHMITT, H SCHUMACHER, RA STEARNS, RL STOTZER, R SUKATON, R SUTTER, R TAKEUTCHI, F WOLFE, DM YAMAMOTO, K YAMASHITA, S YOKKAICHI, S ZEPS, V ZYBERT, R TI SEARCH FOR H DIBARYON-NUCLEUS BOUND-STATES IN RELATIVISTIC AU+PT COLLISIONS SO PHYSICAL REVIEW C LA English DT Article ID STABLE DIBARYON AB Recent estimates suggest that the production of strange exotic objects, such as the hypothetical H dibaryon (H), is surprisingly large in Au collisions at AGS energies. Two possible bound states of the H, namely H-He-3 and H-d, would be well separated in mass from known nuclear isotopes and therefore could be uniquely identified by experiment. We report the null result of a first search for these objects in Au+Pt collisions at the AGS, and limit their production cross sections for stable systems to similar to 10(-5) mb/(GeV)(2), near y=0.6 and p(t)/Z=0.18 GeV/c. C1 UNIV BIRMINGHAM,DEPT PHYS,BIRMINGHAM B15 2TT,W MIDLANDS,ENGLAND. BROOKHAVEN NATL LAB,UPTON,NY 11973. CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213. UNIV FREIBURG,FAK PHYS,D-79104 FREIBURG,GERMANY. KYOTO UNIV,DEPT PHYS,SAKYO KU,KYOTO 606,JAPAN. KYOTO SANGYO UNIV,FAC SCI,KYOTO 603,JAPAN. VASSAR COLL,DEPT PHYS & ASTRON,POUGHKEEPSIE,NY 12601. YALE UNIV,DEPT PHYS,NEW HAVEN,CT 06511. RP RUSEK, A (reprint author), UNIV NEW MEXICO,DEPT PHYS,ALBUQUERQUE,NM 87131, USA. RI Schumacher, Reinhard/K-6455-2013; Franklin, Gregg/N-7743-2014; Meyer, Curtis/L-3488-2014; Quinn, Brian/N-7343-2014; Yokkaichi, Satoshi/C-6215-2017 OI Schumacher, Reinhard/0000-0002-3860-1827; Franklin, Gregg/0000-0003-4176-1378; Meyer, Curtis/0000-0001-7599-3973; Quinn, Brian/0000-0003-2800-986X; NR 25 TC 12 Z9 12 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1580 EP 1583 DI 10.1103/PhysRevC.52.1580 PG 4 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300047 ER PT J AU POP, VT GYULASSY, M WANG, XN AF POP, VT GYULASSY, M WANG, XN TI STRANGENESS ENHANCEMENT IN P+A AND S+A INTERACTIONS AT ENERGIES NEAR 200A GEV SO PHYSICAL REVIEW C LA English DT Article ID HEAVY-ION COLLISIONS; DUAL PARTON MODEL; SULFUR-TUNGSTEN INTERACTIONS; NUCLEUS-NUCLEUS COLLISIONS; LAMBDA-BAR-PRODUCTION; MOLECULAR-DYNAMICS APPROACH; CHAIN FRAGMENTATION MODEL; PARTICLE-PRODUCTION; HADRON-NUCLEUS; MONTE-CARLO AB The systematics of strangeness enhancement is calculated using the HIJING and VENUS models and compared to recent data on pp, pA, and AA collisions at CERN/SPS energies (200A GeV). The HIJING model is used to perform a linear extrapolation from pp to AA. VENUS is used to estimate the effects of final state cascading and possible nonconventional production mechanisms. This comparison shows that the large enhancement of strangeness observed in S+Au collisions, interpreted previously as possible evidence for quark-gluon plasma formation, has its origins in nonequilibrium dynamics of few nucleon systems. A factor of 2 enhancement of Lambda(0) at midrapidity is indicated by recent pS data, where on the average one projectile nucleon interacts with only two target nucleons. There appears to be another factor of 2 enhancement in the light ion reaction SS relative to pS, when on the average only two projectile nucleons interact with two target ones. C1 UNIV PADUA, DIPARTIMENTO FIS G GALILEI, I-35131 PADUA, ITALY. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, DIV NUCL SCI, BERKELEY, CA 94720 USA. IST NAZL FIS NUCL, PADUA, ITALY. RP COLUMBIA UNIV, DEPT PHYS, 538 W 120TH ST, NEW YORK, NY 10027 USA. OI Wang, Xin-Nian/0000-0002-9734-9967 NR 91 TC 32 Z9 32 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9985 EI 2469-9993 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1618 EP 1629 DI 10.1103/PhysRevC.52.1618 PG 12 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300050 ER PT J AU SZYMANSKI, JJ BOWMAN, JD LEUSCHNER, M BROWN, BA GIRIT, IC AF SZYMANSKI, JJ BOWMAN, JD LEUSCHNER, M BROWN, BA GIRIT, IC TI IS LARGE WEAK MIXING IN HEAVY-NUCLEI CONSISTENT WITH ATOMIC EXPERIMENTS - REPLY SO PHYSICAL REVIEW C LA English DT Letter C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. MICHIGAN STATE UNIV,DEPT PHYS,E LANSING,MI 48824. PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08540. RP SZYMANSKI, JJ (reprint author), INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP 1713 EP 1713 DI 10.1103/PhysRevC.52.1713 PG 1 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300063 ER PT J AU BERNSTEIN, LA HUGHES, JR BECKER, JA FARRIS, LP HENRY, EA ASZTALOS, SJ CEDERWALL, B CLARK, RM DELEPLANQUE, MA DIAMOND, RM FALLON, P LEE, IY MACCHIAVELLI, AO STEPHENS, FS CIZEWSKI, JA YOUNES, W AF BERNSTEIN, LA HUGHES, JR BECKER, JA FARRIS, LP HENRY, EA ASZTALOS, SJ CEDERWALL, B CLARK, RM DELEPLANQUE, MA DIAMOND, RM FALLON, P LEE, IY MACCHIAVELLI, AO STEPHENS, FS CIZEWSKI, JA YOUNES, W TI SUPERDEFORMATION IN ER-154 SO PHYSICAL REVIEW C LA English DT Note ID HIGH-SPIN; STATES; BANDS; DY-152 AB A superdeformed (SD) band consisting of 13 gamma-ray transitions has been observed in Er-154, an isotone of Dy-152(66). The experiment was performed using the Sn-118(Ar-40,4n) reaction at E(Ar-40)=185 MeV and the early implementation of GAMMASPHERE. This is an observation of a SD band in the A approximate to 150 region with a proton number greater than 66. The J((2)) moment of inertia of the band is constant above ($) over bar h omega=0.45 MeV and shows a sharp rise below this value suggesting a paired band crossing. These results suggest that total Routhian surface calculations fail to accurately predict the deformation of the band. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RUTGERS STATE UNIV,NEW BRUNSWICK,NJ 08903. RP BERNSTEIN, LA (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551, USA. RI Cederwall, Bo/M-3337-2014 OI Cederwall, Bo/0000-0003-1771-2656 NR 13 TC 17 Z9 17 U1 1 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD SEP PY 1995 VL 52 IS 3 BP R1171 EP R1174 PG 4 WC Physics, Nuclear SC Physics GA RV823 UT WOS:A1995RV82300004 ER PT J AU DAWSON, S VALENCIA, G AF DAWSON, S VALENCIA, G TI LOOKING FOR CP VIOLATION IN W PRODUCTION AND DECAY SO PHYSICAL REVIEW D LA English DT Article ID LARGE TRANSVERSE-MOMENTUM; HIGH-PT W; NONCONSERVATION; QCD; COLLISIONS; ORDER AB We describe CP-violating observables in resonant W-+/- and W-+/- plus one jet production at the Fermilab Tevatron. We present simple examples of CP-violating effective operators, consistent with the symmetries of the standard model, which would give rise to these observables. We find that CP-violating effects coming from new physics at the TeV scale could in principle be observable at the Tevatron with 10(6) W-+/- decays. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS & ASTRON,AMES,IA 50011. RP DAWSON, S (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. NR 21 TC 9 Z9 9 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 SEP 1 PY 1995 VL 52 IS 5 BP 2717 EP 2723 DI 10.1103/PhysRevD.52.2717 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200013 ER PT J AU BAER, H CHEN, CH PAIGE, F TATA, X AF BAER, H CHEN, CH PAIGE, F TATA, X TI SIGNALS FOR MINIMAL SUPERGRAVITY AT THE CERN LARGE HADRON COLLIDER - MULTIJET PLUS MISSING ENERGY CHANNEL SO PHYSICAL REVIEW D LA English DT Article ID SQUARK DECAYS; SUPERSYMMETRY BREAKING; GRAND UNIFICATION; NEUTRALINO PRODUCTION; PPBAR COLLIDER; Z0 DECAYS; SEARCH; GLUINO; LEP; SUPERCOLLIDERS AB We use ISAJET to perform a detailed study of the missing transverse energy is not an element of(T) plus multijet signal expected from superparticle production at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. We delineate the region of parameter space where the is not an element of(T) supersymmetry signal should be observable at the LHC and compare it to the regions explorable via searches for sleptons and for chargino or neutralino production. We confirm that, given a data sample of 10 fb(-1), m(g) similar to 1300 GeV can be explored if m ($) over bar q much greater than m ($) over bar q, while m ($) over bar g similar to 2000 GeV can be probed if m ($) over bar q similar or equal to m ($) over bar g. We further examine what information can be gleaned from scrutinizing this event sample. For instance, the multijet multiplicity yields information on whether squark production makes a significant contribution to the observed is not an element of(T) sample. Furthermore, reconstructing hemispheric masses may yield a measure of m ($) over bar g to similar to 15-25% if gluinos are lighter than 700-800 GeV. Finally, for favorabl infinity exists and is, in fact, a Skyrme model; otherwise there is no continuum limit. C1 LOS ALAMOS NATL LAB, DIV THEORET T8, LOS ALAMOS, NM 87545 USA. RP UNIV COLL SWANSEA, DEPT PHYS, SWANSEA SA2 8PP, W GLAM, WALES. NR 62 TC 7 Z9 7 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD SEP 1 PY 1995 VL 52 IS 5 BP 2891 EP 2914 DI 10.1103/PhysRevD.52.2891 PG 24 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200027 ER PT J AU CREUTZ, M AF CREUTZ, M TI QUARK MASSES AND CHIRAL-SYMMETRY SO PHYSICAL REVIEW D LA English DT Article ID QUANTUM CHROMODYNAMICS; LATTICE QCD; BREAKING; FERMIONS; MODEL AB I discuss the global structure of the strongly interacting gauge theory of quarks and gluons as a function of the quark masses and the CP-violating parameter theta. I concentrate on whether a first order phase transition occurs at theta = pi. I show why this is expected when multiple flavors have a small degenerate mass. This transition can be removed by sufficient flavor breaking. I speculate on the implications of this structure for Wilson's lattice fermions. RP BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA. NR 35 TC 57 Z9 57 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD SEP 1 PY 1995 VL 52 IS 5 BP 2951 EP 2959 DI 10.1103/PhysRevD.52.2951 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200032 ER PT J AU SUZUKI, M AF SUZUKI, M TI INTERFERENCE AND ISOSPIN OF DISORIENTED CHIRAL CONDENSATES SO PHYSICAL REVIEW D LA English DT Article ID HIGH-ENERGY; COLLISIONS; FIELD; QCD AB If coherent states describe the disoriented chiral condensates (DCC's), many states of different chiral orientations should equally contribute to a given hadronic process. However, in the classical field description, we ignore the interference between the different DCC amplitudes. It results in a disregard of isospin invariance. We examine quantitatively how good this approximation is for the DCC's of a typical size. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RP SUZUKI, M (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 12 TC 3 Z9 3 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 SEP 1 PY 1995 VL 52 IS 5 BP 2982 EP 2986 DI 10.1103/PhysRevD.52.2982 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200036 ER PT J AU DUNIETZ, I AF DUNIETZ, I TI B-S-(B)OVER-BAR(S) MIXING, CP VIOLATION, AND EXTRACTION OF CKM PHASES FROM UNTAGGED B-S DATA SAMPLES SO PHYSICAL REVIEW D LA English DT Article ID WEAK PROCESSES; MESON DECAY; SYSTEMS; NONCONSERVATION; ASYMMETRIES; COLLIDER; GAMMA; MODEL AB A width difference of the order of 20% has previously been predicted for the two mass eigenstates of the B-s meson. The dominant contributor to the width difference is the b --> c $($) over bar$$ cs transition, with final states common to both B-s and ($) over bar B-s. All current experimental analyses fit the time dependences of flavor-specific B-s modes to a single exponential, which essentially determines the average B-s lifetime. We stress that the same data sample allows even the measurement of the width difference. To see that, this article reviews the time-dependent formulas for tagged B-s decays, which involve rapid oscillatory terms depending on amt. In untagged data samples the rapid oscillatory terms cancel. Their time evolutions depend only on the much more slowly varying exponential falloffs. We discuss in detail the extraction of the two widths, and identify the large (small) CP-even (-odd) rate with that of the light (heavy) B-s mass eigenstate. It is demonstrated that decay length distributions of some untagged B-s modes, such as rho(o)K(S), omega K-S, D-s((*)+/-)K-(*-/+), can be used to extract the notoriously difficult CKM unitarity triangle angle gamma. Sizable CP-violating effects may be seen with such untagged B-s data samples. Listing ar as an observable allows for additional important standard model constraints. Within the CKM model, the ratio Delta Gamma/Delta m involves no CKM parameters, only a hadronic uncertainty. Thus a measurement of Delta Gamma (Delta m) would predict am tar), up to the uncertainty. A large width difference would automatically solve the puzzle of the number of charmed hadrons per B decay in favor of theory. We also derive an upper limit of (\Delta Gamma\/Gamma)(Bs)less than or similar to 0.3. Further, we must abandon the notion of branching fractions of B-s --> f, and instead consider B(B-L(H)(o) --> f), in analogy with the neutral kaons. RP DUNIETZ, I (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. NR 97 TC 107 Z9 107 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 SEP 1 PY 1995 VL 52 IS 5 BP 3048 EP 3064 DI 10.1103/PhysRevD.52.3048 PG 17 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200043 ER PT J AU KAHANA, DE KAHANA, SH AF KAHANA, DE KAHANA, SH TI TOP-QUARK AND HIGGS-BOSON MASSES IN DYNAMICAL SYMMETRY-BREAKING SO PHYSICAL REVIEW D LA English DT Article ID ELEMENTARY-PARTICLE FORCES; STANDARD-MODEL; NAMBU; QCD AB A model for composite electroweak bosons is reexamined to establish approximate ranges for the initial predictions of the top quark and Higgs boson masses. Higher order corrections to this four-fermion theory at high mass scale, where the theory is matched to the standard model, have little effect, as do wide variations in this scale. However, including all one loop evolution and defining the masses self-consistently, at their respective poles, shifts the top quark and Higgs boson masses somewhat from the earlier calculated positions. These masses exhibit a moderate dependence on the measured strong coupling: for example, with alpha(S)(m(W)) = 0.115(0.125), one finds m(t) similar to 180(185) GeV and m(H) similar to 130(135) GeV. C1 SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794. KENT STATE UNIV,NUCL RES CTR,KENT,OH 44242. RP KAHANA, DE (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. OI Kahana, David Ewan/0000-0003-1266-9089; Kahana, Sidney/0000-0002-5790-9384 NR 29 TC 5 Z9 5 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 SEP 1 PY 1995 VL 52 IS 5 BP 3065 EP 3071 DI 10.1103/PhysRevD.52.3065 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200044 ER PT J AU KUHN, JH AF KUHN, JH TI TAU-POLARIMETRY WITH MULTIMESON STATES SO PHYSICAL REVIEW D LA English DT Note ID DECAY LIBRARY TAUOLA; LEPTONS AB It is demonstrated that the analyzing power of multimeson final states in semileptonic tau decays with respect to the tau spin is equal and maximal for all decay modes. C1 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309. RP KUHN, JH (reprint author), UNIV KARLSRUHE,INST THEORET TEILCHENPHYS,KAISERSTR 12,POSTFACH 6980,D-76128 KARLSRUHE,GERMANY. NR 11 TC 14 Z9 14 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 SEP 1 PY 1995 VL 52 IS 5 BP 3128 EP 3129 DI 10.1103/PhysRevD.52.3128 PG 2 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200056 ER PT J AU TAKEUCHI, T GRANT, AK WORAH, MP AF TAKEUCHI, T GRANT, AK WORAH, MP TI NEGATIVE DELTA-RHO WITH 4 FAMILIES IN THE STANDARD MODEL - COMMENT SO PHYSICAL REVIEW D LA English DT Letter ID VACUUM-POLARIZATION FUNCTIONS; PARAMETER; THRESHOLD AB We consider the contribution of a heavy fourth generation to the rho parameter. We show that recent claims of a large negative contribution to delta rho from a hypothetical heavy fourth family are not well founded. We discuss certain difficulties ill the application of dispersion relations to the calculation of delta rho and how these give rise to uncertainties in both the magnitude and the sign of delta rho. C1 UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637. UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637. RP TAKEUCHI, T (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. NR 9 TC 0 Z9 0 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 SEP 1 PY 1995 VL 52 IS 5 BP 3139 EP 3142 DI 10.1103/PhysRevD.52.3139 PG 4 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200060 ER PT J AU ABE, F AKIMOTO, H AKOPIAN, A ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C AOTA, S APOLLINARI, G ASAKAWA, T ASHMANSKAS, W ATAC, M AUCHINCLOSS, P AZFAR, F AZZIBACCHETTA, P BACCHETTA, N BADGETT, W BAGDASAROV, S BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOUDREAU, J BRANDENBURG, G BRECCIA, L BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CAUZ, D CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, CN CHRISTOFEK, L CIHANGIR, S CLARK, AG COBAL, M CONTRERAS, M CONWAY, J COOPER, J CORDELLI, M COUYOUMTZELIS, C CRANE, D CRONINHENNESSY, D CULBERTSON, R CUNNINGHAM, JD DANIELS, T DEJONGH, F DELCHAMPS, S DELLAGNELLO, S DELLORSO, M DEMORTIER, L DENBY, B DENINNO, M DERWENT, PF DEVLIN, T DICKSON, M DITTMANN, JR DONATI, S DRUCKER, RB DUNN, A EDDY, N EINSWEILER, K ELIAS, JE ELY, R ENGELS, E ERREDE, D ERREDE, S FAN, Q FIORI, I FLAUGHER, B FOSTER, GW FRANKLIN, M FRAUTSCHI, M FREEMAN, J FRIEDMAN, J FRISCH, H FUESS, TA FUKUI, Y FUNAKI, S GAGLIARDI, G GALEOTTI, S GALLINARO, M GARCIASCIVERES, M GARFINKEL, AF GAY, C GEER, S GERDES, DW GIANNETTI, P GIOKARIS, N GIROMINI, P GLADNEY, L GLENZINSKI, D GOLD, M GONZALEZ, J GORDON, A GOSHAW, AT GOULIANOS, K GRASSMANN, H GROER, L GROSSOPILCHER, C GUILLIAN, G GUO, RS HABER, C HAHN, SR HAMILTON, R HANDLER, R HANS, RM HARA, K HARRAL, B HARRIS, RM HAUGER, SA HAUSER, J HAWK, C HAYASHI, E HEINRICH, J HOHLMANN, M HOLCK, C HOLLEBEEK, R HOLLOWAY, L HOLSCHER, A HONG, S HOUK, G HU, P HUFFMAN, BT HUGHES, R HUSTON, J HUTH, J HYLEN, J IKEDA, H INCAGLI, M INCANDELA, J IWAI, J IWATA, Y JENSEN, H JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARR, K KASHA, H KATO, Y KEEBLE, L KELLEY, K KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, BJ KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KOEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUWABARA, T KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LONG, O LOOMIS, C LORETI, M LU, J LUCCHESI, D LUKENS, P LUSIN, S LYS, J MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E METZLER, S MIAO, C MICHAIL, G MIKAMO, S MILLER, R MINATO, H MISCETTI, S MISHINA, M MITSUSHIO, H MIYAMOTO, T MIYASHITA, S MORITA, Y MUELLER, J MUKHERJEE, A MULLER, T MURAT, P NAKADA, H NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NINOMIYA, M NODULMAN, L OGAWA, S OH, SH OHL, KE OHMOTO, T OHSUGI, T OISHI, R OKABE, M OKUSAWA, T OLIVER, R OLSEN, J PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PAPPAS, SP PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PITTS, KT PLUNKETT, R PONDROM, L PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIBON, A RIMONDI, F RISTORI, L ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L ROSER, R SAKUMOTO, WK SALTZBERG, D SANTI, L SATO, H SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, MD SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SILL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, T SPALDING, J SPHICAS, P SPIEGEL, L SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SOUMAROKOV, A SUMOROK, K SUZUKI, J TAKADA, T TAKAHASHI, T TAKANO, T TAKIKAWA, K TAMURA, N TARTARELLI, F TAYLOR, W TENG, PK TERAMOTO, Y TETHER, S THERIOT, D THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOBACK, D TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TRUITT, S TSENG, J TURINI, N UCHIDA, T UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, SC VEJCIK, S VELEV, G VIDAL, R VONDRACEK, M VUCINIC, D WAGNER, RG WAGNER, RL WAHL, J WALKER, RC WANG, C WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, G WATTS, T WEBB, R WEI, C WENDT, C WENZEL, H WESTER, WC WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, D WOLINSKI, J WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSEF, C YOSHIDA, T YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, W ZUCCHELLI, S AF ABE, F AKIMOTO, H AKOPIAN, A ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C AOTA, S APOLLINARI, G ASAKAWA, T ASHMANSKAS, W ATAC, M AUCHINCLOSS, P AZFAR, F AZZIBACCHETTA, P BACCHETTA, N BADGETT, W BAGDASAROV, S BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOUDREAU, J BRANDENBURG, G BRECCIA, L BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CAUZ, D CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, CN CHRISTOFEK, L CIHANGIR, S CLARK, AG COBAL, M CONTRERAS, M CONWAY, J COOPER, J CORDELLI, M COUYOUMTZELIS, C CRANE, D CRONINHENNESSY, D CULBERTSON, R CUNNINGHAM, JD DANIELS, T DEJONGH, F DELCHAMPS, S DELLAGNELLO, S DELLORSO, M DEMORTIER, L DENBY, B DENINNO, M DERWENT, PF DEVLIN, T DICKSON, M DITTMANN, JR DONATI, S DRUCKER, RB DUNN, A EDDY, N EINSWEILER, K ELIAS, JE ELY, R ENGELS, E ERREDE, D ERREDE, S FAN, Q FIORI, I FLAUGHER, B FOSTER, GW FRANKLIN, M FRAUTSCHI, M FREEMAN, J FRIEDMAN, J FRISCH, H FUESS, TA FUKUI, Y FUNAKI, S GAGLIARDI, G GALEOTTI, S GALLINARO, M GARCIASCIVERES, M GARFINKEL, AF GAY, C GEER, S GERDES, DW GIANNETTI, P GIOKARIS, N GIROMINI, P GLADNEY, L GLENZINSKI, D GOLD, M GONZALEZ, J GORDON, A GOSHAW, AT GOULIANOS, K GRASSMANN, H GROER, L GROSSOPILCHER, C GUILLIAN, G GUO, RS HABER, C HAHN, SR HAMILTON, R HANDLER, R HANS, RM HARA, K HARRAL, B HARRIS, RM HAUGER, SA HAUSER, J HAWK, C HAYASHI, E HEINRICH, J HOHLMANN, M HOLCK, C HOLLEBEEK, R HOLLOWAY, L HOLSCHER, A HONG, S HOUK, G HU, P HUFFMAN, BT HUGHES, R HUSTON, J HUTH, J HYLEN, J IKEDA, H INCAGLI, M INCANDELA, J IWAI, J IWATA, Y JENSEN, H JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARR, K KASHA, H KATO, Y KEEBLE, L KELLEY, K KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, BJ KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KOEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUWABARA, T KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LONG, O LOOMIS, C LORETI, M LU, J LUCCHESI, D LUKENS, P LUSIN, S LYS, J MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E METZLER, S MIAO, C MICHAIL, G MIKAMO, S MILLER, R MINATO, H MISCETTI, S MISHINA, M MITSUSHIO, H MIYAMOTO, T MIYASHITA, S MORITA, Y MUELLER, J MUKHERJEE, A MULLER, T MURAT, P NAKADA, H NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NINOMIYA, M NODULMAN, L OGAWA, S OH, SH OHL, KE OHMOTO, T OHSUGI, T OISHI, R OKABE, M OKUSAWA, T OLIVER, R OLSEN, J PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PAPPAS, SP PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PITTS, KT PLUNKETT, R PONDROM, L PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIBON, A RIMONDI, F RISTORI, L ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L ROSER, R SAKUMOTO, WK SALTZBERG, D SANTI, L SATO, H SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, MD SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SILL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, T SPALDING, J SPHICAS, P SPIEGEL, L SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SOUMAROKOV, A SUMOROK, K SUZUKI, J TAKADA, T TAKAHASHI, T TAKANO, T TAKIKAWA, K TAMURA, N TARTARELLI, F TAYLOR, W TENG, PK TERAMOTO, Y TETHER, S THERIOT, D THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOBACK, D TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TRUITT, S TSENG, J TURINI, N UCHIDA, T UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, SC VEJCIK, S VELEV, G VIDAL, R VONDRACEK, M VUCINIC, D WAGNER, RG WAGNER, RL WAHL, J WALKER, RC WANG, C WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, G WATTS, T WEBB, R WEI, C WENDT, C WENZEL, H WESTER, WC WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, D WOLINSKI, J WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSEF, C YOSHIDA, T YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, W ZUCCHELLI, S TI IDENTIFICATION OF TOP QUARKS USING KINEMATIC VARIABLES SO PHYSICAL REVIEW D LA English DT Note ID HADRON AB We have used a kinematic technique to distinguish top quark pair production from background in p ($) over bar p collisions at root s=1.8 TeV, applied to 67 pb(-1) of data. We define a sample of W+ greater than or equal to 3 jet events in which the jets are produced at large angles relative to the incident beams. In this sample, we find an excess of events with large jet transverse energies relative to expectations from background. The excess is consistent with top quark production; a large fraction of events in this kinematic region contains b jets. We interpret these results as evidence that most of the selected events are from t ($) over bar t decay. C1 ARGONNE NATL LAB,ARGONNE,IL 60439. UNIV BOLOGNA,IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY. BRANDEIS UNIV,WALTHAM,MA 02254. UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024. UNIV CHICAGO,CHICAGO,IL 60637. DUKE UNIV,DURHAM,NC 27708. FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY. HARVARD UNIV,CAMBRIDGE,MA 02138. HIROSHIMA UNIV,HIGASHIHIROSHIMA 724,JAPAN. UNIV ILLINOIS,URBANA,IL 61801. MCGILL UNIV,INST PARTICLE PHYS,MONTREAL,PQ H3A 2T8,CANADA. UNIV TORONTO,TORONTO,ON M5S 1A7,CANADA. JOHNS HOPKINS UNIV,BALTIMORE,MD 21218. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. MIT,CAMBRIDGE,MA 02139. UNIV MICHIGAN,ANN ARBOR,MI 48109. MICHIGAN STATE UNIV,E LANSING,MI 48824. UNIV NEW MEXICO,ALBUQUERQUE,NM 87131. OSAKA CITY UNIV,OSAKA 588,JAPAN. UNIV PADUA,IST NAZL FIS NUCL,SEZ PADOVA,I-35131 PADUA,ITALY. UNIV PENN,PHILADELPHIA,PA 19104. UNIV PITTSBURGH,PITTSBURGH,PA 15260. UNIV PISA,IST NAZL FIS NUCL,I-56100 PISA,ITALY. SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY. PURDUE UNIV,W LAFAYETTE,IN 47907. UNIV ROCHESTER,ROCHESTER,NY 14627. ROCKEFELLER UNIV,NEW YORK,NY 10021. RUTGERS STATE UNIV,PISCATAWAY,NJ 08854. ACAD SINICA,TAIPEI 11529,TAIWAN. TEXAS A&M UNIV,COLLEGE STN,TX 77843. TEXAS TECH UNIV,LUBBOCK,TX 79409. UNIV TSUKUBA,TSUKUBA,IBARAKI 305,JAPAN. TUFTS UNIV,MEDFORD,MA 02155. UNIV WISCONSIN,MADISON,WI 53706. YALE UNIV,NEW HAVEN,CT 06511. RP ABE, F (reprint author), NATL LAB HIGH ENERGY PHYS,KEK,TSUKUBA,IBARAKI 305,JAPAN. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012; Punzi, Giovanni/J-4947-2012; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014 OI Chiarelli, Giorgio/0000-0001-9851-4816; Azzi, Patrizia/0000-0002-3129-828X; Punzi, Giovanni/0000-0002-8346-9052; Warburton, Andreas/0000-0002-2298-7315; NR 14 TC 35 Z9 35 U1 0 U2 3 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 SEP 1 PY 1995 VL 52 IS 5 BP R2605 EP R2609 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200001 ER PT J AU ABE, F ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C APOLLINARI, G ARETI, H ATAC, M AUCHINCLOSS, P AZFAR, F AZZI, P BACCHETTA, N BADGETT, W BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BIRD, F BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOSWELL, C BOULOS, T BRANDENBURG, G BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, N 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INCANDELA, J ISO, H JENSEN, H JESSOP, CP JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARDELIS, DA KASHA, H KATO, Y KEEBLE, L KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KIEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LOOMIS, C LONG, O LORETI, M LOW, EH LU, J LUCCHESI, D LUCHINI, CB LUKENS, P LYS, J MAAS, P MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E MICHAIL, G MIKAMO, S MILLER, M MILLER, R MIMASHI, T MISCETTI, S MISHINA, M MITSUSHIO, H MIYASHITA, S MORITA, Y MOULDING, S MUELLER, J MUKHERJEE, A MULLER, T MUSGRAVE, P NAKAE, LF NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NODULMAN, L OGAWA, S OH, SH OHL, KE OISHI, R OKUSAWA, T PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PLUNKETT, R PONDROM, L PRODUIT, N PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIMONDI, F RISTORI, L ROACHBELLINO, M ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L SAKUMOTO, WK SALTZBERG, D SANSONI, A SCARPINE, V SCHINDLER, A SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCHNEIDER, O SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, M SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SIL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, L SONG, T SPALDING, J SPIEGEL, L SPHICAS, P SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SUMOROK, K SWARTZ, RL TAKAHASHI, T TAKIKAWA, K TARTARELLI, F TAYLOR, W TERAMOTO, Y TETHER, S THERIOT, D THOMAS, J THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TSENG, J TURCOTTE, M TURINI, N UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, S VEJCIK, S VIDAL, R VONDRACEK, M WAGNER, RG WAGNER, RL WAINER, N WALKER, RC WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, G WATTS, T WEBB, R WENDT, C WENZEL, H WESTER, WC WESTHUSING, T WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, J WU, DY WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSHIDA, T YOUSEF, C YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, S ZHANG, W ZUCCHELLI, S AF ABE, F ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C APOLLINARI, G ARETI, H ATAC, M AUCHINCLOSS, P AZFAR, F AZZI, P BACCHETTA, N BADGETT, W BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BIRD, F BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOSWELL, C BOULOS, T BRANDENBURG, G BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, N CIHANGIR, S CLARK, AG COBAL, M CONTRERAS, M CONWAY, J COOPER, J CORDELLI, M COUYOUMTZELIS, C CRANE, D CUNNINGHAM, JD DANIELS, T DEJONGH, F DELCHAMPS, S DELLAGNELLO, S DELLORSO, M DEMORTIER, L DENBY, B DENINNO, M DERWENT, PF DEVLIN, T DICKSON, M DITTMAN, J DONATI, S DRUCKER, RB DUNN, A EINSWEILER, K ELIAS, JE ELY, R ENGELS, E ENO, S ERREDE, D ERREDE, S FAN, Q FARHAT, B FIORI, I FLAUGHER, B FOSTER, GW FRANKLIN, M FRAUTSCHI, M FREEMAN, J FRIEDMAN, J FRISCH, H FRY, A FUESS, TA FUKUI, Y FUNAKI, S GAGLIARDI, G GALEOTTI, S GALLINARO, M GARFINKEL, AF GEER, S GERDES, DW GIANNETTI, P GIOKARIS, N GIROMINI, P GLADNEY, L GLENZINSKI, D GOLD, M GONZALEZ, J GORDON, A GOSHAW, AT GOULIANOS, K GRASSMANN, H GREWAL, A GROER, L GROSSOPILCHER, C HABER, C HAHN, SR HAMILTON, R HANDLER, R HANS, RM HARA, K HARRAL, B HARRIS, RM HAUGER, SA HAUSER, J HAWK, C HEINRICH, J CRONINHENNESSY, D HOLLEBEEK, R HOLLOWAY, L HOLSCHER, A HONG, S HOUK, G HU, P HUFFMAN, BT HUGHES, R HURST, P HUSTON, J HUTH, J HYLEN, J INCAGLI, M INCANDELA, J ISO, H JENSEN, H JESSOP, CP JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARDELIS, DA KASHA, H KATO, Y KEEBLE, L KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KIEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LOOMIS, C LONG, O LORETI, M LOW, EH LU, J LUCCHESI, D LUCHINI, CB LUKENS, P LYS, J MAAS, P MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E MICHAIL, G MIKAMO, S MILLER, M MILLER, R MIMASHI, T MISCETTI, S MISHINA, M MITSUSHIO, H MIYASHITA, S MORITA, Y MOULDING, S MUELLER, J MUKHERJEE, A MULLER, T MUSGRAVE, P NAKAE, LF NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NODULMAN, L OGAWA, S OH, SH OHL, KE OISHI, R OKUSAWA, T PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PLUNKETT, R PONDROM, L PRODUIT, N PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIMONDI, F RISTORI, L ROACHBELLINO, M ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L SAKUMOTO, WK SALTZBERG, D SANSONI, A SCARPINE, V SCHINDLER, A SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCHNEIDER, O SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, M SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SIL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, L SONG, T SPALDING, J SPIEGEL, L SPHICAS, P SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SUMOROK, K SWARTZ, RL TAKAHASHI, T TAKIKAWA, K TARTARELLI, F TAYLOR, W TERAMOTO, Y TETHER, S THERIOT, D THOMAS, J THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TSENG, J TURCOTTE, M TURINI, N UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, S VEJCIK, S VIDAL, R VONDRACEK, M WAGNER, RG WAGNER, RL WAINER, N WALKER, RC WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, G WATTS, T WEBB, R WENDT, C WENZEL, H WESTER, WC WESTHUSING, T WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, J WU, DY WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSHIDA, T YOUSEF, C YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, S ZHANG, W ZUCCHELLI, S TI MEASUREMENT OF THE RATIO SIGMA-B(P(P)OVER-BAR-]W-]E-NU)/SIGMA-B(P(P)OVER-BAR-]Z(O)-]EE) IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1800 GEV SO PHYSICAL REVIEW D LA English DT Article ID = 1.8 TEV; PROTON-ANTIPROTON COLLISIONS; PBARP COLLISIONS; RADIATIVE-CORRECTIONS; W-BOSON; STANDARD MODEL; CROSS-SECTIONS; NEUTRINOS; NUMBER; DECAY AB We present an analysis of data from p ($) over bar p collisions at a center-of-mass energy of root s = 1800 GeV. A measurement is made of the ratio R = sigma B(p ($) over bar p --> W --> ev)/sigma B(p ($) over bar p --> Z(0) --> ee). The data represent 19.6 pb(-1) collected by the Collider Detector at Fermilab during the 1992-1993 collider run of the Fermilab Tevatron. We find R = 10.90 +/- 0.32(stat)+/-0.29(syst), and from this value we extract a measurement of the W --> ev branching ratio Gamma(W --> ev)/Gamma(W) = 0.1094+/-0.0033(stat)+/-0.0031(syst). From this branching ratio we set a limit on the top quark mass of mt > 62 GeV/c(2) at the 95% confidence level. In contrast with direct searches for the top quark, this limit makes no assumptions about the allowed decay modes of the top quark. In addition, we use a calculation of the leptonic width Gamma(W --> ev) to obtain a value for the W total decay width:Gamma(W) = 2.064+/-0.060(stat)+/-0.059(syst) GeV. C1 ARGONNE NATL LAB, ARGONNE, IL 60439 USA. UNIV BOLOGNA, IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY. BRANDEIS UNIV, WALTHAM, MA 02254 USA. UNIV CALIF LOS ANGELES, LOS ANGELES, CA 90024 USA. UNIV CHICAGO, CHICAGO, IL 60637 USA. DUKE UNIV, DURHAM, NC 27708 USA. FERMILAB NATL ACCELERATOR LAB, BATAVIA, IL 60510 USA. IST NAZL FIS NUCL, LAB NAZL FRASCATI, I-00044 FRASCATI, ITALY. HARVARD UNIV, CAMBRIDGE, MA 02138 USA. UNIV ILLINOIS, URBANA, IL 61801 USA. MCGILL UNIV, INST PARTICLE PHYS, MONTREAL, PQ H3A 2T8, CANADA. UNIV TORONTO, TORONTO, ON M5S 1A7, CANADA. JOHNS HOPKINS UNIV, BALTIMORE, MD 21218 USA. LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA. MIT, CAMBRIDGE, MA 02139 USA. UNIV MICHIGAN, ANN ARBOR, MI 48109 USA. MICHIGAN STATE UNIV, E LANSING, MI 48824 USA. UNIV NEW MEXICO, ALBUQUERQUE, NM 87131 USA. OSAKA CITY UNIV, OSAKA 588, JAPAN. UNIV PADUA, IST NAZL FIS NUCL, SEZ PADOVA, I-35131 PADUA, ITALY. UNIV PENN, PHILADELPHIA, PA 19104 USA. UNIV PITTSBURGH, PITTSBURGH, PA 15260 USA. UNIV PISA, IST NAZL FIS NUCL, I-56100 PISA, ITALY. SCUOLA NORMALE SUPER PISA, I-56100 PISA, ITALY. PURDUE UNIV, W LAFAYETTE, IN 47907 USA. UNIV ROCHESTER, ROCHESTER, NY 14627 USA. ROCKEFELLER UNIV, NEW YORK, NY 10021 USA. RUTGERS STATE UNIV, PISCATAWAY, NJ 08854 USA. ACAD SINICA, TAIPEI 11529, TAIWAN. SUPERCONDUCTING SUPER COLLIDER LAB, DALLAS, TX 75237 USA. TEXAS A&M UNIV, COLLEGE STN, TX 77843 USA. TEXAS TECH UNIV, LUBBOCK, TX 79409 USA. UNIV TSUKUBA, TSUKUBA, IBARAKI 305, JAPAN. TUFTS UNIV, MEDFORD, MA 02155 USA. UNIV WISCONSIN, MADISON, WI 53706 USA. YALE UNIV, NEW HAVEN, CT 06511 USA. RP NATL LAB HIGH ENERGY PHYS, KEK, TSUKUBA, IBARAKI 305, JAPAN. RI Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012; Punzi, Giovanni/J-4947-2012; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Paulini, Manfred/N-7794-2014 OI Chiarelli, Giorgio/0000-0001-9851-4816; Azzi, Patrizia/0000-0002-3129-828X; Punzi, Giovanni/0000-0002-8346-9052; Warburton, Andreas/0000-0002-2298-7315; Paulini, Manfred/0000-0002-6714-5787 NR 52 TC 56 Z9 56 U1 0 U2 3 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0010 EI 2470-0029 J9 PHYS REV D JI Phys. Rev. D PD SEP 1 PY 1995 VL 52 IS 5 BP R2624 EP + DI 10.1103/PhysRevD.52.2624 PG 1 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200005 ER PT J AU CZARNECKI, A KRAUSE, B MARCIANO, WJ AF CZARNECKI, A KRAUSE, B MARCIANO, WJ TI ELECTROWEAK FERMION-LOOP CONTRIBUTIONS TO THE MUON ANOMALOUS MAGNETIC-MOMENT SO PHYSICAL REVIEW D LA English DT Note AB The two-loop electroweak corrections to the anomalous magnetic moment of the muon, generated by fermionic loops, are calculated. An interesting role of the top quark in the anomaly cancellation is observed. New corrections, including terms of order G(mu)alpha m(mu)(2)m(t)(2)/M(W)(2), are computed and a class of diagrams previously thought to vanish are found to be important. The total fermionic correction is -(23+/-3)X10(-11) which decreases the electroweak effects of g-2, predicted from one-loop calculations, by 12%. We give an updated theoretical prediction for g-2 of the muon. C1 BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. RP CZARNECKI, A (reprint author), UNIV KARLSRUHE,INST THEORET TEILCHENPHYS,D-76128 KARLSRUHE,GERMANY. NR 29 TC 166 Z9 166 U1 1 U2 1 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 SEP 1 PY 1995 VL 52 IS 5 BP R2619 EP R2623 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200004 ER PT J AU HUANG, Z SUZUKI, M AF HUANG, Z SUZUKI, M TI ISOSPIN COHERENCE AND FINAL-STATE SCATTERING OF A DISORIENTED CHIRAL CONDENSATE SO PHYSICAL REVIEW D LA English DT Note ID COLLISIONS AB We examine the validity of the notion of the coherent state for pions and the quantum scattering effect in the final state of pion emission. When the number of particles is large, the effect caused by the small but finite mass difference between the neutral and charged pions can add up substantially in the quantum evolution of an initially coherent state. As a result, the states with quite different numbers of neutral or charged pions are essentially incoherent. The importance of the quantum scattering in the final-state isospin charge distribution of a disoriented chiral condensate (DCC)is investigated. We find that the scattering effect significantly reduces the spectacular Centauro and anti-Centauro events. A deformation of the charge distribution dP/df predicted by the classical field theory is significant only for a DCC with a size of 10 fm or more. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,THEORET PHYS GRP,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. NR 15 TC 4 Z9 4 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 SEP 1 PY 1995 VL 52 IS 5 BP R2610 EP R2613 PG 4 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200002 ER PT J AU KIM, S SINCLAIR, DK AF KIM, S SINCLAIR, DK TI EVIDENCE FOR HARD CHIRAL LOGARITHMS IN QUENCHED LATTICE QCD SO PHYSICAL REVIEW D LA English DT Note ID HADRON SPECTRUM AB We present the first direct evidence that quenched QCD differs from full QCD in the chiral(m(q)-->0) limit, as predicted by chiral perturbation theory, from our quenched lattice QCD simulations at beta = 6/g(2) = 6.0. We measure the spectrum of light hadrons on 16(3) x 64, 24(3) x 64, and 32(3) X 64 lattices, using staggered quarks of masses m(q) = 0.01, m(q) = 0.005, and m(q) = 0.0025. The pion masses show evidence for logarithmic violations of the PCAC relation m(pi)(2) alpha m(q), as predicted by quenched chiral perturbation theory. The dependence on spatial lattice volume precludes this being a finite size effect. No evidence is seen for such chiral logarithms in the behavior of the chiral condensate [($) over bar psi psi]. RP KIM, S (reprint author), ARGONNE NATL LAB,DIV HIGH ENERGY PHYS,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 16 TC 19 Z9 19 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 SEP 1 PY 1995 VL 52 IS 5 BP R2614 EP R2618 PG 5 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT822 UT WOS:A1995RT82200003 ER PT J AU BARANYAI, A CUMMINGS, PT AF BARANYAI, A CUMMINGS, PT TI FLUCTUATIONS CLOSE TO EQUILIBRIUM SO PHYSICAL REVIEW E LA English DT Article ID MOLECULAR-DYNAMICS; PRINCIPLE; ENTROPY; FLOW AB We studied the fluctuations of well-defined nonequilibrium molecular dynamics systems by performing accurate computer simulations at constant volume and temperature. We monitored the internal energy, the color current, and the heat how vectors and the pressure tenser in equilibrium and under the impact of ''color'' or shear fields of different size. Fluctuations of the previous quantities are the smallest under equilibrium conditions. In the case of the current generated by the external field, however, the relative fluctuations become smaller with increasing external field. We discuss the implications of these results and make comparisons with theoretical predictions. We point out problems related to the proof of the principle of maximum hardness by Parr and Chattaraj [J. Am. Chem Sec. 113, 1854 (1991)]. C1 OAK RIDGE NATL LAB,DIV CHEM TECHNOL,OAK RIDGE,TN 37831. RP BARANYAI, A (reprint author), UNIV TENNESSEE,DEPT CHEM ENGN,419 DOUGHERTY ENGN BLDG,KNOXVILLE,TN 37996, USA. RI Cummings, Peter/B-8762-2013 OI Cummings, Peter/0000-0002-9766-2216 NR 23 TC 9 Z9 9 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2198 EP 2203 DI 10.1103/PhysRevE.52.2198 PN A PG 6 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800018 ER PT J AU TAMMARO, M EVANS, JW AF TAMMARO, M EVANS, JW TI MONOMER-DIMER SURFACE-REACTION MODEL - INFLUENCE OF THE DIMER ADSORPTION MECHANISM SO PHYSICAL REVIEW E LA English DT Article ID KINETIC PHASE-TRANSITIONS; HETEROGENEOUS CATALYSIS; POISONING TRANSITION; BEHAVIOR AB We consider the monomer-dimer surface reaction without surface diffusion for various dimer adsorption mechanisms, described below. After a dimer impinges ''end on'' at an empty site, its bottom atom remains there while its top atom searches N greater than or equal to 1 sites, either in a local neighborhood (N-local models), or randomly located on the surface (N-random models), to find a second empty site. If one is found, the dimer can then adsorb dissociatively. The N-local models have a reactive window of finite width in the relative impingement rates, bordered by poisoning transitions, whereas the N-random models exhibit true bistability. As N increases, the reactivity is either strictly or effectively confirmed to relative impingement rates close to the stoichiometric ratio. We precisely analyze the limiting behavior as N --> infinity. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT MATH,AMES,IA 50011. RP TAMMARO, M (reprint author), IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011, USA. NR 22 TC 23 Z9 24 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2310 EP 2317 DI 10.1103/PhysRevE.52.2310 PN A PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800031 ER PT J AU HOLIAN, BL VOTER, AF RAVELO, R AF HOLIAN, BL VOTER, AF RAVELO, R TI THERMOSTATTED MOLECULAR-DYNAMICS - HOW TO AVOID THE TODA DEMON HIDDEN IN NOSE-HOOVER DYNAMICS SO PHYSICAL REVIEW E LA English DT Article ID CANONICAL DYNAMICS; LIOUVILLE EQUATION; TEMPERATURE; FLOW AB The Nose-Hoover thermostat, which is often used in the hope of modifying molecular dynamics trajectories in order to achieve canonical-ensemble averages, has hidden in it a Toda ''demon,'' which can give rise to unwanted, noncanonical undulations in the instantaneous kinetic temperature. We show how these long-lived oscillations arise from insufficient coupling of the thermostat to the atoms, and give straightforward, practical procedures for avoiding this weak-coupling pathology in isothermal molecular dynamics simulations. C1 UNIV TEXAS,DEPT PHYS,EL PASO,TX 79968. RP HOLIAN, BL (reprint author), LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545, USA. OI Voter, Arthur/0000-0001-9788-7194 NR 20 TC 88 Z9 88 U1 0 U2 14 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2338 EP 2347 DI 10.1103/PhysRevE.52.2338 PN A PG 10 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800035 ER PT J AU SIGETI, DE AF SIGETI, DE TI SURVIVAL OF DETERMINISTIC DYNAMICS IN THE PRESENCE OF NOISE AND THE EXPONENTIAL DECAY OF POWER SPECTRA AT HIGH-FREQUENCY SO PHYSICAL REVIEW E LA English DT Article ID STRANGE ATTRACTORS; TRAJECTORIES; TURBULENCE; OSCILLATOR; EQUATIONS; SYSTEMS; LIMIT; CHAOS AB Power spectra from continuous-time dynamical systems exhibiting deterministic chaos decay exponentially at high frequency. Power spectra from noisy systems decay via a power law. Since noise is always present in real systems, one can, in practice, observe only a finite region of exponential decay before the spectrum flattens into the power-law decay characteristic of noise. Numerical results are presented that show that, in the Lorenz and Rossler models [J.Atmos. Sci. 20, 130 (1963); Phys; Lett. 57A, 397 (1976)], the preservation of a portion of the region of exponential decay in the presence of noise is equivalent to the preservation of a portion of the scaling region of the attractor giving the correct correlation dimension. This suggests that the observation of a finite region of exponential decay is a sufficient condition for the dynamics of the system to be essentially deterministic. In addition, theoretical arguments are presented that Suggest that preservation;of the exponential decay is a sufficient condition for the existence of finite-time shadowing orbits. These results are applied to the numerical simulation of ordinary differential equations leading to the conclusion that the survival of the region of exponential decay in the power spectrum should guarantee that round-off error and truncation error arising from the discretization of time are not changing the dynamics of the simulation from the dynamics of the original ordinary differential equation. It is conjectured that analogous results should hold for the wave number spectrum in spatiotemporally chaotic systems, that is, that the survival of a region of exponential decay in the wave number spectrum should guarantee that truncation error arising from the discretization of space is not fundamentally changing the dynamics of the system. This is shown to be true for the special case of simulations of fully turbulent hows. RP SIGETI, DE (reprint author), LOS ALAMOS NATL LAB,MS-F645,LOS ALAMOS,NM 87545, USA. NR 28 TC 18 Z9 18 U1 0 U2 3 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2443 EP 2457 DI 10.1103/PhysRevE.52.2443 PN A PG 15 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800046 ER PT J AU RIEKER, TP JANULIS, EP AF RIEKER, TP JANULIS, EP TI DIMERLIKE SMECTIC-A AND SMECTIC-C PHASES IN HIGHLY FLUORINATED THERMOTROPIC LIQUID-CRYSTALS SO PHYSICAL REVIEW E LA English DT Article ID TRANSITIONS; ALKANES; SERIES AB X-ray scattering studies on a homologous series of thermotropic liquid crystals with one tail perfluorinated reveal that the smectic layer thickness depends only on the length of the fluorocarbon tail. Density measurements in combination with the x-ray results show that the average cross-sectional area per molecule, parallel to the smectic layers, depends only on the length of the hydrocarbon tail. These experimental results lead to a model in which steric interactions drive antiparallel alignment of nearest neighbors in the smectic- A and -C phases. These unique dimerlike phases have a layer spacing comparable to the length of the molecules, demonstrate registration of nearest neighbors along their lengths, and exhibit ferroelectric switching in the chiral smectic-C phase. C1 THREE M CO,CORP RES LABS,ST PAUL,MN 55144. RP RIEKER, TP (reprint author), SANDIA NATL LABS,POB 5800,ALBUQUERQUE,NM 87185, USA. NR 21 TC 26 Z9 26 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2688 EP 2691 DI 10.1103/PhysRevE.52.2688 PN A PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800073 ER PT J AU STILLINGER, FH HEADGORDON, T AF STILLINGER, FH HEADGORDON, T TI COLLECTIVE ASPECTS OF PROTEIN-FOLDING ILLUSTRATED BY A TOY MODEL SO PHYSICAL REVIEW E LA English DT Article ID SECONDARY STRUCTURE PREDICTION; MONTE-CARLO SIMULATION; GLOBULAR-PROTEINS; NEURAL NETWORK; STATISTICAL-MECHANICS; FOLDED STATES; THERMODYNAMICS; TRANSITION AB A simple toy model for polypeptides serves as a testbed to illuminate some nonlocal, or collective, aspects of protein folding phenomena. The model is two dimensional and has only two amino acids, but involves a continuous range of backbone bend angles. Global potential energy minima and their folding structures have been determined for leading members of two special and contrasting polypeptide sequences, center doped and Fibonacci, named descriptively for their primary structures. The results display the presence of spontaneous symmetry breaking, elastic strain, and substantial conformational variation for specific embedded amino acid strings. We conclude that collective variables generated by the primary amino acid structure may be required for fully effective protein folding predictors, including those based on neural networks. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV LIFE SCI,BERKELEY,CA 94720. RP STILLINGER, FH (reprint author), AT&T BELL LABS,600 MT AVE,MURRAY HILL,NJ 07974, USA. RI Head-Gordon, Teresa/E-5818-2011 NR 26 TC 80 Z9 88 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2872 EP 2877 DI 10.1103/PhysRevE.52.2872 PN A PG 6 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800092 ER PT J AU CAUBLE, R ROZMUS, W AF CAUBLE, R ROZMUS, W TI 2-TEMPERATURE FREQUENCY-DEPENDENT ELECTRICAL-RESISTIVITY IN SOLID DENSITY PLASMAS PRODUCED BY ULTRASHORT LASER-PULSES SO PHYSICAL REVIEW E LA English DT Article ID KINETIC-THEORY; ABSORPTION; CONDUCTIVITY; 106-K AB A model of the plasma resistivity, or equivalently the electron-ion collision frequency nu, which can be I used to describe absorption of ultrashort laser pulses in solid density plasmas has been constructed. Using kinetic theory based on a memory function formulation and a projection operator method, we have derived an analytical expression for nu, which is valid in strongly coupled plasmas, properly accounts for the laser frequency dependence, and can be applied to plasmas with different electron and ion temperatures. C1 UNIV ALBERTA, DEPT PHYS, EDMONTON, AB T6G 2J1, CANADA. RP LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NR 32 TC 9 Z9 9 U1 1 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2470-0045 EI 2470-0053 J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2974 EP 2981 DI 10.1103/PhysRevE.52.2974 PN B PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV199 UT WOS:A1995RV19900003 ER PT J AU SNYDER, SC MURPHY, AB HOFELDT, DL REYNOLDS, LD AF SNYDER, SC MURPHY, AB HOFELDT, DL REYNOLDS, LD TI DIFFUSION OF ATOMIC-HYDROGEN IN AN ATMOSPHERIC-PRESSURE FREE-BURNING ARC-DISCHARGE SO PHYSICAL REVIEW E LA English DT Article ID POTENTIAL-ENERGY SURFACE; RARE-GASES; EQUILIBRIUM; MOLECULES; PLASMA; H+ AB Relative radial concentration profiles of atomic hydrogen in an atmospheric-pressure argon-hydrogen free-burning 200-A are discharge were measured using laser-induced fluorescence by two-photon excitation of the ground state of atomic hydrogen. Radial profiles are presented for three axial locations. A comparison between the measured profiles and profiles calculated using a diffusion model that considers demixing processes is made. The measured profiles decrease less rapidly with increasing radius than the calculated profiles, suggesting, in agreement with calculations, that the diffusion rate of atomic hydrogen is greater than the recombination rate. Consequently, local chemical equilibrium is not maintained at larger radii in the arc. C1 CSIRO,DIV APPL PHYS,SYDNEY,NSW 2070,AUSTRALIA. UNIV MINNESOTA,DEPT ENGN MECH,MINNEAPOLIS,MN 55455. RP SNYDER, SC (reprint author), IDAHO NATL ENGN LAB,POB 1625,IDAHO FALLS,ID 83415, USA. RI Murphy, Anthony/A-7796-2008 OI Murphy, Anthony/0000-0002-2820-2304 NR 44 TC 31 Z9 32 U1 0 U2 4 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 2999 EP 3009 DI 10.1103/PhysRevE.52.2999 PN B PG 11 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV199 UT WOS:A1995RV19900006 ER PT J AU PODOBEDOV, B SIEMANN, RH AF PODOBEDOV, B SIEMANN, RH TI COHERENT BEAM-BEAM INTERACTION WITH 4 COLLIDING BEAMS SO PHYSICAL REVIEW E LA English DT Article AB The coherent beam-beam interaction in the absence of Landau damping is studied with a computer simulation of four space-charge-compensated colliding beams. Results are presented for the modes, phase space structures, widths, and growth rates of coherent beam-beam resonances. These results are compared with solutions of the Vlasov equation, and with measurements made at the Dispositif de Collisions dans l'Igloo (DCI) storage ring in Orsay, France, which operated with space-charge-compensated colliding beams. RP PODOBEDOV, B (reprint author), STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309, USA. NR 14 TC 10 Z9 10 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 3066 EP 3073 DI 10.1103/PhysRevE.52.3066 PN B PG 8 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV199 UT WOS:A1995RV19900013 ER PT J AU CHEN, C JAMESON, RA AF CHEN, C JAMESON, RA TI SELF-CONSISTENT SIMULATION STUDIES OF PERIODICALLY FOCUSED INTENSE CHARGED-PARTICLE BEAMS SO PHYSICAL REVIEW E LA English DT Article AB A self-consistent two-dimensional model is used to investigate intense charged-particle beam propagation through a periodic solenoidal focusing channel, particularly in the regime in which there is a mismatch between the beam and the focusing channel. The present self-consistent studies confirm that mismatched beams exhibit nonlinear resonances and chaotic behavior in the envelope evolution, as predicted by an earlier envelope analysis [C. Chen and R. C. Davidson, Phys. Rev. Lett. 72, 2195 (1994)]. Transient effects due to emittance growth are studied, and halo formation is investigated. The halo size is estimated. The halo characteristics for a periodic focusing channel are found to be qualitatively the same as those for a uniform focusing channel. A threshold condition is obtained numerically for halo formation in mismatched beams in a uniform focusing channel, which indicates that relative envelope mismatch must be kept well below 20% to prevent space-charge-dominated beams from developing halos. C1 LOS ALAMOS NATL LAB,DIV ACCELERATOR OPERAT & TECHNOL,LOS ALAMOS,NM 87545. RP CHEN, C (reprint author), MIT,CTR PLASMA FUS,CAMBRIDGE,MA 02139, USA. NR 24 TC 14 Z9 14 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP 3074 EP 3080 DI 10.1103/PhysRevE.52.3074 PN B PG 7 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV199 UT WOS:A1995RV19900014 ER PT J AU BERG, JS RUTH, RD AF BERG, JS RUTH, RD TI TRANSVERSE INSTABILITIES FOR MULTIPLE NONRIGID BUNCHES IN A STORAGE-RING SO PHYSICAL REVIEW E LA English DT Note AB describe a method for determining the stability of a system consisting of several highly relativistic bunches of charged particles circulating in a storage ring. The particles interact with magnets designed to guide the beam as well as with electromagnetic fields induced by the particles themselves. Previous calculations considered multibunch modes with one type of internal motion; our method includes coupling between these modes. We also include effects of feedback systems designed to correct these dipole motions. We include an example from a real storage ring design. RP BERG, JS (reprint author), STANFORD LINEAR ACCELERATOR CTR,MAIL STOP 26,POB 4349,STANFORD,CA 94309, USA. RI Berg, Joseph/E-8371-2014 OI Berg, Joseph/0000-0002-5955-6973 NR 32 TC 3 Z9 3 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP R2179 EP R2182 PN A PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800015 ER PT J AU PACZUSKI, M AF PACZUSKI, M TI DYNAMIC SCALING - DISTINGUISHING SELF-ORGANIZED FROM GENERICALLY CRITICAL SYSTEMS SO PHYSICAL REVIEW E LA English DT Note ID INTERFACE GROWTH; NOISE; MEDIA AB The dynamic scaling approach separates nonequilibrium critical phenomena into two distinct categories: (a) those that are ''generically'' critical due to symmetry and (b) those that are self-organized critical. This phenomenological approach is demonstrated in the context of interface growth and depinning, where the surface width obeys the scaling form W(L,s(0),s(0)+s)=(s/L(d))F-beta(s(0)/L(D),s/L(D)). The quantity L is the linear system size, s(0) is the total motion of the interface, and s is the amount of growth separating two configurations. In case (b) the function F has a nontrivial dependence on s(0)/L(D) reflecting a diverging correlation length, while in case (a) it does not. RP PACZUSKI, M (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. NR 26 TC 11 Z9 11 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD SEP PY 1995 VL 52 IS 3 BP R2137 EP R2140 PN A PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA RV198 UT WOS:A1995RV19800004 ER PT J AU ZHAO, YS SCHIFERL, D SHANKLAND, TJ AF ZHAO, YS SCHIFERL, D SHANKLAND, TJ TI A HIGH P-T SINGLE-CRYSTAL X-RAY-DIFFRACTION STUDY OF THERMOELASTICITY OF MGSIO3 ORTHOENSTATITE SO PHYSICS AND CHEMISTRY OF MINERALS LA English DT Article ID PRESSURE; TEMPERATURE AB P-V-T data of MgSiO3 orthoenstatite have been measured by single-crystal X-ray diffraction at simultaneous high pressures (in excess of 4.5 GPa) and temperatures (up to 1000 K). The new P-V-T data of the orthoenstatite, together with previous compression data and thermal expansion data, are described by a modified Birch-Murnaghan equation of state for diverse temperatures. The fitted thermoelastic parameters for MgSiO3 orthoenstatite are: thermal expansion alpha(nu) = a + bT with values of a = 2.86(29) x 10(-5) K-1 and b = 0.72(16) x 10(-8) K-2; isothermal bulk modulus K-TO = 102.8(2) GPa; pressure derivative of bulk modulus K' = partial derivative K/partial derivative P = 10.2(1.2); and temperature derivative of bulk modulus K = partial derivative K/partial derivative T = -0.037(5) GPa/K. The derived thermal Gruneisen parameter is gamma(th) = 1.05 for ambient conditions; Anderson-Gruneisen parameter is delta(TO) = 11.6, and the pressure derivative of thermal expansion is partial derivative alpha/partial derivative P = -3.5 x 10(-6) K-1 GPa(-1) From the P-V-T data and the thermoelastic equation of state, thermal expansions at two constant pressures of 1.5 GPa and 4.0 GPa are calculated. The resulting pressure dependence of thermal expansion is Delta alpha/partial derivative P = -3.2(1) x 10(-6) K-1 GPa(-1). The significantly large values of K', K, delta(T) and partial derivative alpha/partial derivative P indicate that compression/expansion of MgSiO3 orthoenstatite is very sensitive to changes of pressure and temperature. RP ZHAO, YS (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. RI Lujan Center, LANL/G-4896-2012 NR 25 TC 40 Z9 40 U1 0 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0342-1791 J9 PHYS CHEM MINER JI Phys. Chem. Miner. PD SEP PY 1995 VL 22 IS 6 BP 393 EP 398 PG 6 WC Materials Science, Multidisciplinary; Mineralogy SC Materials Science; Mineralogy GA RW202 UT WOS:A1995RW20200008 ER PT J AU NOYES, P AF NOYES, P TI PHIPPS,THOMAS,E., JR SO PHYSICS ESSAYS LA English DT Item About an Individual RP NOYES, P (reprint author), STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIV TORONTO PRESS INC PI ONTARIO PA JOURNALS DEPT, 5201 DUFFERIN ST, ONTARIO NORTH YORK M3H 5T8, CANADA SN 0836-1398 J9 PHYS ESSAYS JI Phys. Essays PD SEP PY 1995 VL 8 IS 3 BP 272 EP 276 PG 5 WC Physics, Multidisciplinary SC Physics GA TG338 UT WOS:A1995TG33800002 ER PT J AU NOYES, HP AF NOYES, HP TI A FINITE AND DISCRETE MODEL FOR SINGLE FERMION MASS RENORMALIZATION - DERIVATION OF THE FREE PARTICLE DIRAC-EQUATION SO PHYSICS ESSAYS LA English DT Article DE BIT-STRING PHYSICS; DISCRETE PHYSICS; DISCRETE ORDERED CALCULUS; RANDOM WALK ZITTERBEWEGUNG; DISCRETE MEASUREMENT ACCURACY; VACUUM FLUCTUATIONS AB We assume that a single particle of mass m cannot be localized to better than +/-h/2mc. Using our understanding of finite and discrete measurement accuracy, the single particle transition in 1 + 1 space-time from (0,0) to (x,t) can then be characterized by a scale factor N and two integers r,1 defined by x = N(r - 1)h/mc and ct = N(r + 1)h/mc(2). The average velocity over this finite interval is v = [(r - 1)/(r + 1)]c. The square of the average momentum is P-2 = [(r - 1)(2)/4r1]mc(2). We show that the solution of the free particle Dirac equation with these boundary conditions can be derived by assuming that the (unobserved) trajectories connecting the two end points are all constructed from Nr steps to the right and N1 steps to the left, with velocity +c or -c, respectively; each single step has length h/mc. We attribute this Zitterbewegung to the emission and absorption of transverse photons to and from the background radiation, each of which necessarily flips the spin. We assert that the symmetry condition on the background radiation that this radiation be undetectable in free particle motion, plus the assumption that the starting and ending spin state must be the same, constitutes the essential requirement for successful single particle mass renormalization in our simple model. We then show that these requirements surface to determine finite series that uniquely correspond to the (truncated) series solution of the corresponding free particle Dirac equation with the same boundary conditions. We sketch how to extend the model to 3 + 1 dimensions. The connection of our model to the derivation of Maxwell's equations from finite and discrete space-time measurement accuracy is briefly discussed. RP NOYES, HP (reprint author), STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309, USA. NR 0 TC 1 Z9 1 U1 0 U2 1 PU UNIV TORONTO PRESS INC PI ONTARIO PA JOURNALS DEPT, 5201 DUFFERIN ST, ONTARIO NORTH YORK M3H 5T8, CANADA SN 0836-1398 J9 PHYS ESSAYS JI Phys. Essays PD SEP PY 1995 VL 8 IS 3 BP 434 EP 445 PG 12 WC Physics, Multidisciplinary SC Physics GA TG338 UT WOS:A1995TG33800020 ER PT J AU REED, HL BRENNER, MP SHI, XD EGGERS, J NAGEL, SR BUCHHOLZ, J SIGURDSON, L PECK, B BUDZINSKI, JM BENJAMIN, RF DEPEUVEDIC, JM JACOBS, JW GOGINENI, SP WHITAKER, MM GOSS, LP ROQUEMORE, WM HOROWITZ, J WOO, MJ GREBER, I KOUMOUTSAKOS, P LEONARD, A METCALFE, G SHINBROT, T MCCARTHY, JJ OTTINO, JM MILLER, GD WILLIAMSON, CHK PETITJEANS, P WESFREID, JE RAMBOD, E GHARIB, M AF REED, HL BRENNER, MP SHI, XD EGGERS, J NAGEL, SR BUCHHOLZ, J SIGURDSON, L PECK, B BUDZINSKI, JM BENJAMIN, RF DEPEUVEDIC, JM JACOBS, JW GOGINENI, SP WHITAKER, MM GOSS, LP ROQUEMORE, WM HOROWITZ, J WOO, MJ GREBER, I KOUMOUTSAKOS, P LEONARD, A METCALFE, G SHINBROT, T MCCARTHY, JJ OTTINO, JM MILLER, GD WILLIAMSON, CHK PETITJEANS, P WESFREID, JE RAMBOD, E GHARIB, M TI GALLERY OF FLUID MOTION SO PHYSICS OF FLUIDS LA English DT Editorial Material AB This article displays winning photographs from the twelfth Annual Fluid Mechanics Photo Contest held at the November 1994 meeting of the American Physical Society, Division of Fluid Dynamics, Atlanta, Georgia. C1 MIT,CAMBRIDGE,MA 02139. UNIV ALBERTA,EDMONTON,AB,CANADA. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. UNIV ARIZONA,TUCSON,AZ 85721. SYST RES LABS INC,DAYTON,OH. NASA,LEWIS RES CTR,CLEVELAND,OH. CASE WESTERN RESERVE UNIV,CLEVELAND,OH. RP REED, HL (reprint author), ARIZONA STATE UNIV,AEROSP RES CTR,TEMPE,AZ 85287, USA. RI Metcalfe, Guy/C-1332-2008; Ottino, Julio/B-6682-2009; McCarthy, Joseph/K-6925-2012; Koumoutsakos, Petros/A-2846-2008; Jacobs, Jeffrey/B-1339-2013 OI Metcalfe, Guy/0000-0003-4679-8663; McCarthy, Joseph/0000-0002-2841-3128; Koumoutsakos, Petros/0000-0001-8337-2122; Jacobs, Jeffrey/0000-0003-0193-7105 NR 10 TC 0 Z9 0 U1 2 U2 11 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-6631 J9 PHYS FLUIDS JI Phys. Fluids PD SEP PY 1995 VL 7 IS 9 BP S1 EP S12 PG 12 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA RR501 UT WOS:A1995RR50100001 ER PT J AU SHAING, KC ZHANG, YZ AF SHAING, KC ZHANG, YZ TI TRANSITION TO HIGH MODE INDUCED BY REDUCTION OF MAGNETIC STRESS SO PHYSICS OF PLASMAS LA English DT Article ID L-H TRANSITION; EDGE ELECTRIC-FIELD; POLOIDAL ROTATION; JFT-2M TOKAMAK; LOCKING; FLOW AB The transition to the high mode (H mode) of plasma operation in tokamaks and stellarators can be triggered by reduction of the magnetic stress. The magnetic stress can be reduced directly, by stabilization of the magnetic perturbation, or by increasing the plasma density and ion temperature if all of the other parameters are fixed. This implies the existence of thresholds in density and ion temperature. The theory is applied to a class of H-mode phenomena observed experimentally. (C) 1995 American Institute of Physics. C1 INT CTR THEORET PHYS,TRIESTE,ITALY. RP SHAING, KC (reprint author), OAK RIDGE NATL LAB,OAK RIDGE,TN 37831, USA. NR 27 TC 2 Z9 3 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3243 EP 3245 DI 10.1063/1.871155 PG 3 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100001 ER PT J AU LEBEDEV, VB DIAMOND, PH GRUZINOVA, I CARRERAS, BA AF LEBEDEV, VB DIAMOND, PH GRUZINOVA, I CARRERAS, BA TI A MINIMAL DYNAMICAL MODEL OF EDGE LOCALIZED MODE PHENOMENA SO PHYSICS OF PLASMAS LA English DT Article ID H-MODE; DIII-D; BALLOONING STABILITY; TOKAMAKS; DISCHARGES; TURBULENCE; TRANSPORT; PLASMA; TRANSITION; FLOWS AB A simple, low-dimensional model of edge localized mode (ELM) phenomena is presented. ELM dynamics are determined by the interaction of few basic processes at the edge of tokamak plasma; these include the evolution of magnetohydrodynamic (MHD) pressure gradient driven instabilities, the low-high (L-H) transition (mediated by electric field shear induced suppression and generation), the fueling of the edge by neutral particles, and edge heating by thermal flux from the core plasma. In the parameter regime characteristic of an H-mode plasma, the model exhibits a transition to stationary relaxation oscillations (i.e., stable limit cycle behavior) corresponding to ELMs. The dependence of ELM frequency, amplitude, etc. on the heating power P-in and other control parameters is studied. The transition from giant to grassy ELM behavior appears as a consequence of increasingly marginal stability to ideal ballooning as P-in increases. Several details of the dynamics of the ELM onset and behavior close to the L-H transition threshold are revealed, as well. (C) 1995 American Institute of Physics. C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. RP LEBEDEV, VB (reprint author), UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093, USA. NR 34 TC 35 Z9 35 U1 1 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3345 EP 3359 DI 10.1063/1.871169 PG 15 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100016 ER PT J AU COHEN, RH XU, XQ AF COHEN, RH XU, XQ TI A MODEL FOR A SCRAPE-OFF-LAYER LOW-HIGH (L-H) MODE TRANSITION SO PHYSICS OF PLASMAS LA English DT Article ID POLOIDAL ROTATION; DIII-D; PLASMA CONDITIONS; EDGE TURBULENCE; X-POINT; TOKAMAKS; DIVERTOR; BIFURCATION; INSTABILITY AB Increasing the radial mode number has a stabilizing effect on the conducting-wall and curvature-driven interchange modes in a tokamak scrape-off layer (SOL), arising from the increased polarization response. Such an effect is naturally imposed as the SOL width is decreased, and for a narrow-enough SOL, the stabilizing effect is stronger than the increase in the instability drives. By combining a mixing-length estimate for the thermal diffusivity with energy conservation and heat conduction equations and the condition of continuity of the heat flux at the separatrix, it is found that the resultant turbulence-transport system admits two solutions, one stable and one unstable, at different SOL widths; the inclusion of additional physics can add a second stable root at lower width. These roots are plausibly identified with SOL behavior in low (L) and high (H) modes. Particularly when a model is introduced for finite-beta, finite-k(parallel to) effects on the modes, a power threshold for transition to the narrower root is obtained, suggesting a possible L-H transition mechanism. The non-monotonic dependence of the turbulent heat flux vs SOL width and the possibility of multiple solutions for the equilibrium SOL width are verified with nonlinear simulations. (C) 1995 American Institute of Physics. RP COHEN, RH (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550, USA. NR 31 TC 9 Z9 9 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3374 EP 3383 DI 10.1063/1.871172 PG 10 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100019 ER PT J AU ARTUN, M TANG, WM REWOLDT, G AF ARTUN, M TANG, WM REWOLDT, G TI TRAPPED ION MODE IN TOROIDALLY ROTATING PLASMAS SO PHYSICS OF PLASMAS LA English DT Article ID TOKAMAK; INSTABILITY; TRANSPORT AB The influence of radially sheared toroidal flows on the Trapped Ion Mode (TIM) is investigated using a two-dimensional eigenmode code. These radially extended toroidal microinstabilities could significantly influence the interpretation of confinement scaling trends and associated fluctuation properties observed in recent tokamak experiments. In the present analysis, the electrostatic drift kinetic equation is obtained from the general nonlinear gyrokinetic equation in rotating plasmas [M. Artun and W. M. Tang, Phys. Plasmas 1, 2682 (1994)]. In the long perpendicular wavelength limit k(r) rho(bi)much less than 1, where rho(bi) is the average trapped ion banana width, the resulting eigenmode equation becomes a coupled system of second order differential equations for the poloidal harmonics. These equations are solved using finite element methods. Numerical results from the analysis of low and medium toroidal mode number instabilities are presented using representative Low confinement mode (L-mode) experimental data followed by a discussion of numerical results. (C) 1995 American Institute of Physics. C1 PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08543. NR 16 TC 29 Z9 29 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3384 EP 3400 DI 10.1063/1.871173 PG 17 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100020 ER PT J AU ROGERS, B ZAKHAROV, L AF ROGERS, B ZAKHAROV, L TI NONLINEAR OMEGA(ASTERISK)-STABILIZATION OF THE M=1 MODE IN TOKAMAKS SO PHYSICS OF PLASMAS LA English DT Article ID INTERNAL KINK MODES; MAGNETIC RECONNECTION; 4-FIELD MODEL; TEARING MODE; PLASMAS; INSTABILITY; GROWTH AB Earlier studies of sawtooth oscillations in Tokamak Fusion Test Reactor (TFTR) supershots [Levinton et al., Phys. Rev. Lett. 72, 2895 (1994); Zakharov et al., ''Onset and stabilization of sawtooth oscillations in tokamaks,'' in Plasma Physics and Controlled Nuclear Fusion Research, Proceedings of the 15th International Conference, Seville, 1994 (International Atomic Energy Agency, Vienna, in press)] have found an apparent contradiction between conventional linear theory and experiment: even in sawtooth-free discharges, the theory typically predicts instability due to a nearly ideal m=1 mode. Here, the nonlinear evolution of such mode is analyzed using numerical simulations of a two-fluid magnetohydrodynamic (MHD) model. We find the mode saturates nonlinearly at a small amplitude provided the ion and electron drift-frequencies omega(*,i,e) are somewhat above the linear stability threshold of the collisionless m=1 reconnecting mode. The comparison of the simulation results to m=1 mode activity in TFTR suggests additional, stabilizing effects outside the present model are also important. (C) 1995 American Institute of Physics. C1 PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08543. RP ROGERS, B (reprint author), UNIV MARYLAND,INST PLASMA RES,COLLEGE PK,MD 20742, USA. NR 23 TC 26 Z9 26 U1 1 U2 5 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3420 EP 3428 DI 10.1063/1.871124 PG 9 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100024 ER PT J AU DIPPOLITO, DA MYRA, JR JARDIN, SC CHANCE, MS VALEO, EJ AF DIPPOLITO, DA MYRA, JR JARDIN, SC CHANCE, MS VALEO, EJ TI PONDEROMOTIVE FEEDBACK STABILIZATION OF EXTERNAL KINKS AND DISRUPTIONS IN TOKAMAKS SO PHYSICS OF PLASMAS LA English DT Article ID RF STABILIZATION; RESISTIVE WALL; MODES; MIRROR AB A novel mechanism for feedback stabilization of external kink modes and disruptions is proposed in which modulated radio-frequency (RF) antennas apply a stabilizing ponderomotive force (PF) to the plasma. The RF power required for n=1 kink stabilization in the Princeton Beta Experiment-Modified (PBX-M) [Phys. Fluids B 2, 1271 (1990)] is estimated; and it is shown that the idea can be tested with the existing antenna system. A simulation of a preliminary n=0 modulation experiment on PBX-M also shows that the PF can balance applied vertical field oscillations. (C) 1995 American Institute of Physics. C1 PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08543. RP DIPPOLITO, DA (reprint author), LODESTAR RES CORP,BOULDER,CO 80301, USA. RI Jardin, Stephen/E-9392-2010 NR 19 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3429 EP 3439 DI 10.1063/1.871448 PG 11 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100025 ER PT J AU HINKEL, DE WILLIAMS, EA BERGER, RL AF HINKEL, DE WILLIAMS, EA BERGER, RL TI STIMULATED BRILLOUIN BACKSCATTER OF A SHORT-PULSE LASER SO PHYSICS OF PLASMAS LA English DT Article ID PARAMETRIC-INSTABILITIES; ELECTROMAGNETIC-WAVES; PLASMAS; SCATTERING AB Stimulated Brillouin backscattering (SBBS) from a short-pulse laser, where the pulse length is short compared to the plasma length, is found to be qualitatively different than in the long pulse regime, where the pulse length is long compared to the plasma length. After an initial transient of order the laser pulse length transit time, the instability reaches a steady state in the variables x'=x-V(g)t, t'=t, where V-g is the pulse group velocity. In contrast, SBBS in a long pulse can be absolutely unstable and grows indefinitely, or until nonlinearities intervene. The motion of the laser pulse induces Doppler related effects that substantially modify the backscattered spectrum at higher intensities, where the instability is strongly coupled (i.e., has a growth rate large compared to the ion acoustic frequency). (C) 1995 American Institute of Physics. RP HINKEL, DE (reprint author), LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA. NR 22 TC 14 Z9 14 U1 1 U2 5 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3447 EP 3460 DI 10.1063/1.871126 PG 14 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100027 ER PT J AU DRAKE, RP BAUER, BS BAKER, KL MIZUNO, K SLEAFORD, B RUBENCHIK, AM ESTABROOK, K BATON, S JALINAUD, T SCHIFANO, E GOLDMAN, MV NEWMAN, DL AF DRAKE, RP BAUER, BS BAKER, KL MIZUNO, K SLEAFORD, B RUBENCHIK, AM ESTABROOK, K BATON, S JALINAUD, T SCHIFANO, E GOLDMAN, MV NEWMAN, DL TI MEASUREMENTS OF THE ANGULAR AND TEMPORAL STRUCTURE OF 2ND-HARMONIC EMISSION FROM LASER-PRODUCED PLASMAS SO PHYSICS OF PLASMAS LA English DT Article ID STEEP TEMPERATURE-GRADIENTS; PARAMETRIC-INSTABILITIES; INHOMOGENEOUS-MEDIA; DECAY-INSTABILITY; TURBULENCE; SCATTERING; FREQUENCY; TRANSPORT; FUSION; WAVES AB We have measured and analyzed the second harmonic emission, both in the plane of the laser electric field and perpendicular to it, at several angles near 135 degrees from the laser wave vector. The experiments used from 1 to 80 J of 1.053 mu m light to irradiate carbon-hydrogen (CH) targets with a 550 ps pulse. A random phase plate was used, producing characteristic intensities in the range of 10(13)-10(14) W/cm(2). This was sufficient to drive the Ion Acoustic Decay Instability, producing Stokes emission well-separated from the emission spike at the second harmonic of the laser frequency. The spectral structure of the Stokes emission was qualitatively similar for all intensities and angles of observation. The duration of the signals showed trends anticipated from linear theory. To explain the scaling of the signal strength and spectral width requires nonlinear theory. (C) 1995 American Institute of Physics. C1 LAWRENCE LIVERMORE NATL LAB,DEPT PHYS SCI,DIV X,LIVERMORE,CA 94551. ECOLE POLYTECH,UTILISAT LASERS INTENSES LAB,F-94100 PALAISEAU,FRANCE. UNIV COLORADO,DEPT ASTROPHYS PLANETARY & ATMOSPHER SCI,BOULDER,CO 80309. UNIV CALIF DAVIS,DEPT APPL SCI,DAVIS,CA 95616. RP DRAKE, RP (reprint author), LAWRENCE LIVERMORE NATL LAB,PLASMA PHYS RES INST,POB 808,L-418,LIVERMORE,CA 94551, USA. RI Drake, R Paul/I-9218-2012 OI Drake, R Paul/0000-0002-5450-9844 NR 34 TC 3 Z9 3 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD SEP PY 1995 VL 2 IS 9 BP 3473 EP 3483 DI 10.1063/1.871449 PG 11 WC Physics, Fluids & Plasmas SC Physics GA RR831 UT WOS:A1995RR83100030 ER PT J AU GLATZMAIER, GA ROBERTS, PH AF GLATZMAIER, GA ROBERTS, PH TI A 3-DIMENSIONAL CONVECTIVE DYNAMO SOLUTION WITH ROTATING AND FINITELY CONDUCTING INNER-CORE AND MANTLE SO PHYSICS OF THE EARTH AND PLANETARY INTERIORS LA English DT Article; Proceedings Paper CT 4th International Symposium of the International-Union-of-Geodesy-and-Geophysics (IUGG) Union-Committee-for-Study-of-the-Earths-Deep-Interior (SEDI) CY AUG 07-12, 1994 CL WHISTLER MOUNTAIN, CANADA SP Int Union Geodesy & Geophys, Union Comm Study Earths Deep Interior ID NUMERICAL SIMULATIONS; SPHERICAL-SHELL; EARTHS CORE; THERMAL-CONVECTION; MAGNETIC-FIELD; RADIAL GRAVITY; DRIVEN; APPROXIMATION; VISCOSITY; REVERSALS AB We present the first three-dimensional (3D), time-dependent, self-consistent numerical solution of the magnetohydrodynamic (MHD) equations that describe thermal convection and magnetic field generation in a rapidly rotating spherical fluid shell with a solid conducting inner core. This solution, which serves as a crude analog for the geodynamo, is a self-sustaining supercritical dynamo that has maintained a magnetic field for three magnetic diffusion times, roughly 40000 years. Fluid velocity in the outer core reaches a maximum of 0.4 cm s(-1), and at times the magnetic field can be as large as 560 gauss. Magnetic energy is usually about 4000 times greater than the kinetic energy of the convection that maintains it. Viscous and magnetic coupling to both the inner core below and the mantle above cause time-dependent variations in their respective rotation rates; the inner core usually rotates faster than the mantle and decadal variations in the length of the day of the mantle are similar to those observed for the Earth. The pattern and amplitude of the radial magnetic field at the core-mantle boundary (CMB) and its secular variation are also similar to the Earth's. The maximum amplitudes of the longitudinally averaged temperature gradient, shear flow, helicity, and magnetic field oscillate between the northern and southern hemispheres on a time scale of a few thousand years. However, only once in many attempts does the field succeed in reversing its polarity because the field in the inner core, which has the opposite polarity to the field in most of the outer core, usually does not have enough time to reverse before the field in the outer core changes again. One successful magnetic field reversal occurs near the end of our simulation. C1 UNIV CALIF LOS ANGELES, INST GEOPHYS & PLANETARY PHYS, LOS ANGELES, CA 90024 USA. RP LOS ALAMOS NATL LAB, INST GEOPHYS & PLANETARY PHYS, POB 1663, LOS ALAMOS, NM 87545 USA. NR 49 TC 387 Z9 397 U1 3 U2 31 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0031-9201 EI 1872-7395 J9 PHYS EARTH PLANET IN JI Phys. Earth Planet. Inter. PD SEP PY 1995 VL 91 IS 1-3 BP 63 EP 75 DI 10.1016/0031-9201(95)03049-3 PG 13 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA RU596 UT WOS:A1995RU59600008 ER PT J AU RICHTER, B AF RICHTER, B TI THE ROLE OF SCIENCE IN OUR SOCIETY SO PHYSICS TODAY LA English DT Article AB Because the road from scientific discovery to new technology is a wayward one, lawmakers and officials intent on retuning Federal science policy must bear in mind that government support for long-term R&D is needed to complement industry's short-term focus. RP RICHTER, B (reprint author), STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0031-9228 J9 PHYS TODAY JI Phys. Today PD SEP PY 1995 VL 48 IS 9 BP 43 EP 47 DI 10.1063/1.881475 PG 5 WC Physics, Multidisciplinary SC Physics GA RT109 UT WOS:A1995RT10900010 ER PT J AU DELALUNA, E HANSON, G SANCHEZ, J WILGEN, JB ZHURAVLEV, VA ONO, M KAITA, R AF DELALUNA, E HANSON, G SANCHEZ, J WILGEN, JB ZHURAVLEV, VA ONO, M KAITA, R TI EDGE DENSITY PROFILE MEASUREMENTS BY AMPLITUDE-MODULATION REFLECTOMETRY ON PBX-M TOKAMAK SO PLASMA PHYSICS AND CONTROLLED FUSION LA English DT Article ID MICROWAVE REFLECTOMETRY; DIII-D; MODE AB A reflectometer, based on the amplitude modulation technique, has bean developed and operated on a PBX-M for the measurement of electron density profile, The system, operating with the extraordinary mode in the range of 32-50 GHz, is able to measure the density profile in the plasma edge from the scrape-off layer up to typically r/a = 0.7. The determination of the time delay for each frequency is achieved by measuring the phase delay of a 200 MHz amplitude modulation envelope superimposed on the millimetre wave probing signal. The system has a final bandwidth of 40 kHz and is able to obtain the edge profile during a 1 ms sweep of the microwave source. High quality profiles are obtained in systematic good agreement with Thomson scattering measurements. The profile reconstruction from the raw data is direct, with only a need for minimal data processing. Profiles have been measured for ohmic, RF and NBI heated discharges. Features of the profile changes in the L-H transition are shown. One of the goals of the instrument has been the measurement of the slight modifications to the edge density profile produced by the injection of ion Bernstein waves. These changes have been clearly observed and are in agreement with theoretical expectations. C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08543. RP DELALUNA, E (reprint author), CIEMAT,EURATOM ASSOC,E-28040 MADRID,SPAIN. NR 33 TC 9 Z9 9 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0741-3335 J9 PLASMA PHYS CONTR F JI Plasma Phys. Control. Fusion PD SEP PY 1995 VL 37 IS 9 BP 925 EP 935 PG 11 WC Physics, Fluids & Plasmas SC Physics GA RV623 UT WOS:A1995RV62300001 ER PT J AU KARAMAVRUC, AI CLARK, NN HALOW, JS AF KARAMAVRUC, AI CLARK, NN HALOW, JS TI APPLICATION OF MUTUAL INFORMATION-THEORY TO FLUID-BED TEMPERATURE AND DIFFERENTIAL PRESSURE SIGNAL ANALYSIS SO POWDER TECHNOLOGY LA English DT Article DE MUTUAL INFORMATION THEORY; FLUIDIZED BEDS; DIFFERENTIAL PRESSURE AB This paper reports on the application of mutual information theory to the analysis of transient differential pressure and temperature signals from a fluidized bed. The signals were recorded around a heat transfer tube which was placed horizontally into a bubbling fluidized bed. The heat transfer tube was instrumented with fast response surface thermocouples and differential pressure sensors. Mutual information theory was used to identify the periodicity and the predictability of the local instantaneous differential pressure and temperature signals. It was also used to interpret the bubble-particle packet dynamics around the instrumented heat transfer tube. As theoretical and limiting cases, purely periodic and random signals were observed. The conventional signal processing tools such as autocorrelation, cross-correlation and fast Fourier transformation (FFT) were used as preliminary tools to analyze data. The qualitative similarities between the mutual information function and the autocorrelation function are shown. The first minimum of the mutual information function is used to reconstruct the phase portrait from the one-dimensional time series. It is suggested that if the first minimum of the mutual information function exists, then using the time derivative of the measured one-dimensional signal with the least number of bins provides a better time delay tau than using the measured signal directly. C1 US DOE,MORGANTOWN ENERGY TECHNOL CTR,MORGANTOWN,WV 26505. RP KARAMAVRUC, AI (reprint author), W VIRGINIA UNIV,DEPT MECH ENGN,MORGANTOWN,WV 26506, USA. NR 25 TC 22 Z9 22 U1 1 U2 9 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0032-5910 J9 POWDER TECHNOL JI Powder Technol. PD SEP PY 1995 VL 84 IS 3 BP 247 EP 257 DI 10.1016/0032-5910(95)02986-C PG 11 WC Engineering, Chemical SC Engineering GA RQ735 UT WOS:A1995RQ73500007 ER PT J AU ZWEIBEL, K AF ZWEIBEL, K TI THIN-FILMS - PAST, PRESENT, FUTURE SO PROGRESS IN PHOTOVOLTAICS LA English DT Article ID AMORPHOUS-SILICON AB Thin-film photovoltaics was developed as a means of substantially, reducing the cost of photovoltaic (PV) systems, The rationale for this was that thin-film modules would be cheaper to manufacture owing to their reduced material costs, energy costs, handling costs and capital costs, However, thin films had to be developed using new materials, including amorphous silicon, copper indium diselenide, cadmium telluride and film crystalline silicon, In all cases, these technologies faced major technical and financial hurdles, The most crucial technical barriers ave described within the text, Today, much progress has been made and the performance of the best thin-film laboratory cells approaches the best performance of polycrystalline silicon cells, Outdoor stability has been a problem, especially, with amorphous silicon, but this material and newer thin films now display good to excellent stability. If appears that the goal of thin films-truly low-cost PV electricity that can be sold into energy-significant markets-can be achieved, However, its achievement will require both the continuing resolution of technical problems and the ongoing investment of significant public and/or private resources. RP ZWEIBEL, K (reprint author), NATL RENEWABLE ENERGY LAB,THIN FILM PARTNERSHIP PROGRAM,GOLDEN,CO 80401, USA. NR 28 TC 48 Z9 49 U1 0 U2 5 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1062-7995 J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD SEP-OCT PY 1995 VL 3 IS 5 BP 279 EP 293 PG 15 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA TA241 UT WOS:A1995TA24100002 ER PT J AU FTHENAKIS, VM MOSKOWITZ, PD AF FTHENAKIS, VM MOSKOWITZ, PD TI THIN-FILM PHOTOVOLTAIC CELLS - HEALTH AND ENVIRONMENTAL-ISSUES IN THEIR MANUFACTURE, USE AND DISPOSAL SO PROGRESS IN PHOTOVOLTAICS LA English DT Article AB The large-scale manufacture of thin-film photovoltaic cells may present health and safety hazards if adequate precautions are not taken. In this paper, we examine the hazards associated with producing and using Si, CdTe and CIS thin-film photovoltaic modules, We focus especially on the potential of workers in manufacturing facilities to be exposed to chronic, low levels of Cd, Pertinent regulations are reviewed and control options are presented that can minimize the risks to workers. Also, we investigate occupational safety hazards and the associated engineering and administrative options related to using pyrophoric silane in making amorphous silicon cells. Finally, recycling and disposal options for spent photovoltaic modules are discussed. RP FTHENAKIS, VM (reprint author), BROOKHAVEN NATL LAB,BIOMED & ENVIRONM ASSESSMENT GRP,UPTON,NY 11973, USA. NR 26 TC 17 Z9 18 U1 0 U2 10 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1062-7995 J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD SEP-OCT PY 1995 VL 3 IS 5 BP 295 EP 306 PG 12 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA TA241 UT WOS:A1995TA24100003 ER PT J AU CRANDALL, R LUFT, W AF CRANDALL, R LUFT, W TI THE FUTURE OF AMORPHOUS-SILICON PHOTOVOLTAIC TECHNOLOGY SO PROGRESS IN PHOTOVOLTAICS LA English DT Article ID A-SI-H; SOLAR-CELLS; DEFECTS AB Amorphous silicon modules are commercially available. They ape the first truly commercial thin-film photovoltaic (PV) devices. Well-defined production processes over very large areas (> 1 m(2)) have been implemented. There are few environmental issues during manufacturing, deployment in the field or with the eventual disposal of the modules. Manufacturing safety issues ave well characterized and controllable. The highest measured initial efficiency to date is 13.7% for a small triple-stacked cell and the highest stabilized module efficiency is 10%. There is a consensus among researchers that in order to achieve a 15% stabilized efficiency, a triple-junction amorphous silicon structure is required. Fundamental improvements in alloys are needed for higher efficiencies. This is being pursued through the National Renewable Energy Laboratory/US Department of Energy (NREL/DOE) Thin-Film Partnership Program. Cost reductions through improved manufacturing processes are being pursued under the NREL/DOE-sponsored research in manufacturing technology (PVMaT). Muck of the work in designing a-Si devices is a result of trying to compensate for the Staebler-Wronski effect. Some new deposition techniques hold promise because they have produced materials with lower stabilized defect densities. However, none has yet produced a high-efficiency device and shown it to be more stable than those from standard glow discharge-deposited material. RP CRANDALL, R (reprint author), NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401, USA. NR 60 TC 18 Z9 18 U1 0 U2 2 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 1062-7995 J9 PROG PHOTOVOLTAICS JI Prog. Photovoltaics PD SEP-OCT PY 1995 VL 3 IS 5 BP 315 EP 332 PG 18 WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied SC Energy & Fuels; Materials Science; Physics GA TA241 UT WOS:A1995TA24100005 ER PT J AU Somorjai, GA AF Somorjai, GA TI Progress in our understanding of structure bonding and reactivity of metal surfaces and adsorbed monolayers at the molecular level: A 25 year perspective SO PROGRESS IN SURFACE SCIENCE LA English DT Article; Proceedings Paper CT 15th Biennial Canadian Conference on Surface Science (Surface Canada 95) CY MAY 25-27, 1995 CL UNIV WATERLOO, WATERLOO, CANADA SP Canadian Soc Chem, Div Surface Sci, Canadian Assoc Physicists HO UNIV WATERLOO ID SCANNING-TUNNELING-MICROSCOPY; ENERGY-ELECTRON-DIFFRACTION; LEED INTENSITY ANALYSIS; 100 CRYSTAL FACES; CARBON-MONOXIDE; COADSORBED BENZENE; ATOMIC-STRUCTURE; SULFUR; DIFFUSION; PLATINUM AB Over fifty techniques have been developed during the past 25 years that permit molecular level investigation of structure and bonding of the surface monolayer. Among them, low-energy electron diffraction surface crystallography and vibrational spectroscopies using photons and electrons have contributed the lion's share of quantitative experimental data. (Most of these investigations have utilized small area (similar to 1 cm(2)) external surfaces, although microporous large internal surface area samples were, also scrutinized.) From these studies, the physical picture of the surface which emerges is one of a separate phase with distinct structure, composition, and bonding that is distinguishable from the solid bulk. The new surface phenomena-which were discovered include clean surface reconstruction, adsorbate-induced restructuring, ordering and reactivity of surface defects (steps and kinks), cluster-like bonding, the large mobility of adsorbates, and the coadsorption bond. Techniques-were also developed that permit in situ molecular level study of surfaces during reactions at high pressures and temperatures with good time resolution (10(-12)-10(-3) sec). Molecular surface science has had a great impact in major applications involving surface phenomena-selective adsorption, heterogeneous catalysis, coatings, microelectronics, electrochemistry, and tribology-and spawned new surface technologies. The demands of these applications focus attention on the behavior of the buried interface, both solid-liquid and solid-solid. C1 UNIV CALIF BERKELEY,DIV SCI MAT,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RP Somorjai, GA (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. NR 46 TC 17 Z9 17 U1 3 U2 9 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0079-6816 J9 PROG SURF SCI JI Prog. Surf. Sci. PD SEP-DEC PY 1995 VL 50 IS 1-4 BP 3 EP 29 DI 10.1016/0079-6816(95)00041-0 PG 27 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA TL808 UT WOS:A1995TL80800003 ER PT J AU Himpsel, FJ Akatsu, H Carlisle, JA Sutherland, DGJ Jimenez, I Terminello, LJ Jia, JJ Callcott, TA Samant, MG Stohr, J Ederer, DL Perera, RCC Tong, W Shunh, DK AF Himpsel, FJ Akatsu, H Carlisle, JA Sutherland, DGJ Jimenez, I Terminello, LJ Jia, JJ Callcott, TA Samant, MG Stohr, J Ederer, DL Perera, RCC Tong, W Shunh, DK TI Surface and interface analysis at 3rd generation light sources SO PROGRESS IN SURFACE SCIENCE LA English DT Article; Proceedings Paper CT 15th Biennial Canadian Conference on Surface Science (Surface Canada 95) CY MAY 25-27, 1995 CL UNIV WATERLOO, WATERLOO, CANADA SP Canadian Soc Chem, Div Surface Sci, Canadian Assoc Physicists HO UNIV WATERLOO ID QUANTUM-WELL STATES; LEVEL PHOTOELECTRON-SPECTROSCOPY; ELECTRONIC-STRUCTURE; SI 2P; X-RAY; EPITAXY; SUPERLATTICES; SUBSTRATE; LAYER AB A third generation or synchrotron radiation facilities is coming on line worldwide, whose brilliance exceeds previous ultraviolet and x-ray light sources by four orders of magnitude. The capabilities at second and third generation light sources are discussed, using examples in surface and interface chemistry and magnetic nanostructures. The authors' experience at the IBM-Tennessee-Tulane-LLNL-LBL undulator beam line will serve as a hands-on guide for work at one of the new facilities. C1 LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94551 USA. UNIV TENNESSEE, KNOXVILLE, TN 37996 USA. IBM CORP, DIV RES, ALMADEN RES CTR, SAN JOSE, CA 95120 USA. TULANE UNIV, NEW ORLEANS, LA 70118 USA. UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA. RP IBM CORP, THOMAS J WATSON RES CTR, DIV RES, YORKTOWN HTS, NY 10598 USA. RI Jimenez, Ignacio/F-7422-2010 OI Jimenez, Ignacio/0000-0001-5605-3185 NR 32 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0079-6816 J9 PROG SURF SCI JI Prog. Surf. Sci. PD SEP-DEC PY 1995 VL 50 IS 1-4 BP 37 EP 51 DI 10.1016/0079-6816(95)00043-7 PG 15 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA TL808 UT WOS:A1995TL80800005 ER PT J AU Herdt, GC Jung, DR Czanderna, AW AF Herdt, GC Jung, DR Czanderna, AW TI Weak interactions between deposited metal overlayers and organic functional groups of self-assembled monolayers SO PROGRESS IN SURFACE SCIENCE LA English DT Article; Proceedings Paper CT 15th Biennial Canadian Conference on Surface Science (Surface Canada 95) CY MAY 25-27, 1995 CL UNIV WATERLOO, WATERLOO, CANADA SP Canadian Soc Chem, Div Surface Sci, Canadian Assoc Physicists HO UNIV WATERLOO ID RAY PHOTOELECTRON-SPECTROSCOPY; MOLECULAR ASSEMBLIES; 11-MERCAPTOUNDECANOIC ACID; ELECTRONIC-STRUCTURE; BINDING-ENERGIES; NA ATOMS; SURFACES; CLUSTERS; GOLD; SILVER AB The purpose of our research is to study the reactions, interactions or penetration between vacuum-deposited metals (M) and the organic functional end groups (OFGs) of self-assembled monolayers (SAMs) under controlled conditions. Metal/SAM systems are models for understanding bonding at M/organic interfaces and the concomitant adhesion between the different materials. In broad terms, the M/OFGs form interacting interfaces (e.g., Cr/COOH or Cu/COOH) in which the deposit resides on top of the OFGs or weakly interacting interfaces through which the overlayer penetrates and resides at the SAM/gold interface. We present a review of XPS results from weakly interacting systems (e.g., Cu/OH, Cu/CN, Ag/CH3, Ag/COOH) and discuss in more depth the time-temperature dependence of the disappearance of the metal from the M/SAM interface following deposition. In this work, XPS and ISS were used to characterize octadecanethiol (ODT, HS(CH2)(17)CH3), mercaptoundecanoic acid (MUA, HS(CH2)(10)COOH), and mercaptohexadecanoic acid (MHA, HS(CH2)(15)COOH) SAMs before and after depositing up to 1.0 nm Ag or Cu at ca. 10(-7) torr. The SAMs were prepared by self-assembly onto gold films on <100> silicon substrates in an ethanolic thiol solution. XPS spectra indicate that no strong interaction occurs between the deposited Ag and the COOH organic functional group (OFG) of MUA or MHA, although a stronger interaction is evident for MHA, and a unidentate is formed for Cu on mercaptoundecanol (MUG). The Ag interaction with ODT is weak. ISS compositional depth profiles (CDPs) for Ag on MHA and MUA and ODT are compared over a temperature range of 113 to 293 K. The ISS results indicate that Ag remains on the surface of MUA for up to 1 h after deposition, whereas Ag penetrates ODT in less than 5 min at 295 K. The time for Ag to penetrate into MHA is several times longer than for MUA, depending on the SAM temperature. The time dependence of the slower Ag penetration through MUA and MHA is compared with that for ODT at temperatures below 295 K. Although Ag/OFGs are expected to have relatively weak interactions, the Ag/COOH system was anticipated to be more interactive than was found, so rapid penetration of Ag through the COOH SAM is an unexpected result. RP Herdt, GC (reprint author), NATL RENEWABLE ENERGY LAB,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 65 TC 67 Z9 68 U1 1 U2 18 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0079-6816 J9 PROG SURF SCI JI Prog. Surf. Sci. PD SEP-DEC PY 1995 VL 50 IS 1-4 BP 103 EP 129 DI 10.1016/0079-6816(95)00048-8 PG 27 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA TL808 UT WOS:A1995TL80800010 ER PT J AU Keller, DA Shibata, M Marcus, E Ornstein, RL Rein, R AF Keller, DA Shibata, M Marcus, E Ornstein, RL Rein, R TI Finding the global minimum: A fuzzy end elimination implementation SO PROTEIN ENGINEERING LA English DT Article DE dead end elimination; fuzzy end elimination; global minimum; protein side chains; rotameric states ID SIDE-CHAIN CONFORMATIONS; PROTEIN STRUCTURES; PREDICTION; OPTIMIZATION; ALGORITHM; BACKBONE; HOMOLOGY; THEOREM; SEARCH; TRACE AB The 'fuzzy end elimination theorem' (FEE) is a mathematically proven theorem that identifies rotameric states in proteins which are incompatible,vith the global minimum energy conformation, While implementing the FEE we noticed two different aspects that directly affected the final results at convergence. First, the identification of a single dead-ending rotameric state can trigger a 'domino effect' that initiates the identification of additional rotameric states which become dead-ending, A recursive check for dead-ending rotameric states is therefore necessary every time a dead-ending rotameric state is identified. It is shown that, if the recursive check is omitted, it is possible to miss the identification of some dead-ending rotameric states causing a premature termination of the elimination process. Second, we examined the effects of removing dead-ending rotameric states from further considerations at different moments of time. Two different methods of rotameric state removal were examined for an order dependence. In one case, each rotamer found to be incompatible with the global minimum energy conformation was removed immediately following its identification, In the other, dead-ending rotamers were marked for deletion but retained during the search, so that they influenced the evaluation of other rotameric states. When the search was completed, all marked rotamers were removed simultaneously. In addition, to expand further the usefulness of the FEE, a novel method is presented that allows for further reduction in the remaining set of conformations at the FEE convergence. In this method, called a tree-based search, each dead-ending pair of rotamers which does not lead to the direct removal of either rotameric state is used to reduce significantly the number of remaining conformations. In the future this method can also be expanded to triplet and quadruplet sets of rotameric states. We tested our implementation of the FEE by exhaustively searching ten protein segments and found that the FEE identified the global minimum every time. For each segment, the global minimum was exhaustively searched in two different environments: (i) the segments were extracted from the protein and exhaustively searched in the absence of the surrounding residues; (ii) the segments were exhaustively searched in the presence of the remaining residues fixed at crystal structure conformations. We also evaluated the performance of the method for accurately predicting side chain conformations. We examined the influence of factors such as type and accuracy of backbone template used, and the restrictions imposed by the choice of potential function, parameterization and rotamer database. Conclusions are drawn on these results and future prospects are given. C1 ROSWELL PK CANC INST, DEPT BIOPHYS, BUFFALO, NY 14263 USA. PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. NR 26 TC 16 Z9 17 U1 0 U2 1 PU OXFORD UNIV PRESS UNITED KINGDOM PI OXFORD PA WALTON ST JOURNALS DEPT, OXFORD, ENGLAND OX2 6DP SN 0269-2139 J9 PROTEIN ENG JI Protein Eng. PD SEP PY 1995 VL 8 IS 9 BP 893 EP 904 DI 10.1093/protein/8.9.893 PG 12 WC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology GA TL573 UT WOS:A1995TL57300006 PM 8746727 ER PT J AU ELOFSSON, A LEGRAND, SM EISENBERG, D AF ELOFSSON, A LEGRAND, SM EISENBERG, D TI LOCAL MOVES - AN EFFICIENT ALGORITHM FOR SIMULATION OF PROTEIN-FOLDING SO PROTEINS-STRUCTURE FUNCTION AND GENETICS LA English DT Article DE PROTEIN FOLDING; PROTEIN STRUCTURE; GENETIC ALGORITHMS; MONTE CARLO SIMULATIONS; RING CLOSURE; DIHEDRAL ANGLES; STRUCTURE PREDICTION ID INTRAMOLECULAR CONFORMATIONAL OPTIMIZATION; MOLECULAR-DYNAMICS SIMULATIONS; LONG-TIME DYNAMICS; MEAN FIELD-THEORY; GENETIC ALGORITHMS; GLOBULAR-PROTEINS; NUCLEIC-ACIDS; FORCE-FIELD; MODEL; ENERGY AB We have enhanced genetic algorithms and Monte Carlo methods for simulation of protein folding by introducing ''local moves'' in dihedral space, A local move consists of changes in backbone dihedral angles in a sequential window while the positions of all atoms outside the window remain unchanged. We find three advantages of local moves: (1) For some energy functions, protein conformations of lower energy are found; (2) these low energy conformations are found in fewer steps; and (3) the simulations are less sensitive to the details of the annealing protocol. To distinguish the effectiveness of local move algorithm from the complexity of the energy function, we have used several different energy functions, These energy functions include the Profile score (Bowie et al., Science 253:164-170, 1991), the knowledge-based energy function used by Bowie and Eisenberg 1994 (Proc. Natl. Acad. Sci. U.S.A, 91:4434-4440, 1994), two energy terms developed as suggested by Sippl and coworkers (Hendlich et al., J. Mel. Biol. 216:167-180, 1990), and AMBER (Weiner and Kollman, J. Comp. Chem. 2:287-303, 1981). Besides these energy functions we have used three energy functions that include knowledge of the native structures: the RMSD from the native structure, the distance matrix error, and an energy term based on the distance between different residue types called DBIN, In some of these simulations the main advantage of local moves is the reduced dependence on the details of the annealing schedule, In other simulations, local moves are superior to other algorithms as structures with lower energy are found. (C) 1995 Wiley-Liss, Inc. C1 UNIV CALIF LOS ANGELES,DOE,INST MOLEC BIOL,STRUCT BIOL & MOLEC MED LAB,LOS ANGELES,CA 90095. OI Elofsson, Arne/0000-0002-7115-9751 NR 49 TC 47 Z9 47 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 0887-3585 J9 PROTEINS JI Proteins PD SEP PY 1995 VL 23 IS 1 BP 73 EP 82 DI 10.1002/prot.340230109 PG 10 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA RV968 UT WOS:A1995RV96800008 PM 8539252 ER PT J AU HARVEY, D AF HARVEY, D TI SHAPING SEATTLE ARCHITECTURE - A HISTORICAL GUIDE TO THE ARCHITECTS - OCHSNER,JK SO PUBLIC HISTORIAN LA English DT Book Review RP HARVEY, D (reprint author), PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU UNIV CALIF PRESS PI BERKELEY PA JOURNALS DEPT 2120 BERKELEY WAY, BERKELEY, CA 94720 SN 0272-3433 J9 PUBL HISTORIAN JI Public Hist. PD FAL PY 1995 VL 17 IS 4 BP 110 EP 112 PG 3 WC History SC History GA TM877 UT WOS:A1995TM87700023 ER PT J AU JONAH, CD AF JONAH, CD TI HART,EDWIN,J. (1910-1995) - IN-MEMORIAM SO RADIATION RESEARCH LA English DT Item About an Individual RP JONAH, CD (reprint author), ARGONNE NATL LAB,DIV CHEM,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 1 TC 0 Z9 0 U1 1 U2 1 PU RADIATION RESEARCH SOC PI OAK BROOK PA 2021 SPRING RD, STE 600, OAK BROOK, IL 60521 SN 0033-7587 J9 RADIAT RES JI Radiat. Res. PD SEP PY 1995 VL 143 IS 3 BP 349 EP 351 PG 3 WC Biology; Biophysics; Radiology, Nuclear Medicine & Medical Imaging SC Life Sciences & Biomedicine - Other Topics; Biophysics; Radiology, Nuclear Medicine & Medical Imaging GA RT447 UT WOS:A1995RT44700017 PM 7652175 ER PT J AU MASSEY, RS HOLDEN, DN AF MASSEY, RS HOLDEN, DN TI PHENOMENOLOGY OF TRANSIONOSPHERIC PULSE PAIRS SO RADIO SCIENCE LA English DT Article AB Recent observations of transient radio impulses by an Earth-orbiting satellite appear to be quite unlike any previously reported. They appear as pairs of brief (a few microseconds), noiselike bursts, separated by a few tens of microseconds, and are dispersed in a way that implies subionospheric origin. Over 300 of these events have now been observed. These ''transionospheric pulse pairs'' (TIPPs) have not yet been associated with any known source, although thunderstorms are suspected. The observations, made by the Blackbeard instrument on the ALEXIS satellite, are digitized records of the electric field in a passband from about 25 to 100 MHz. Ground-based observations of lightning in this band appear quite different, even accounting for ionospheric dispersion: bursts of short pulses last hundreds of microseconds and have much lower power (when propagated to the satellite) than TIPP events. Signals that resemble the ground-based data have been observed by Blackbeard but, being much weaker, are much less likely to trigger the instrument than are the strong pulse pair events. In this paper we analyze 97 of the early TIPP observations. We compute several parameters that describe the events: the location of the satellite at the time of reception, the energy in each pulse, the separation between pulses, the duration of each pulse, and the dispersion of each pulse. The statistical distributions of these parameters provide clues to and constraints on possible source mechanisms. The possibility that the pulses might be the direct and reflected signals from a high-altitude source is considered and cannot be rejected by the data. RP MASSEY, RS (reprint author), LOS ALAMOS NATL LAB,SPACE & ATMOSPHER SCI GRP,MAIL STOP D466,LOS ALAMOS,NM 87545, USA. NR 12 TC 53 Z9 54 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0048-6604 J9 RADIO SCI JI Radio Sci. PD SEP-OCT PY 1995 VL 30 IS 5 BP 1645 EP 1659 DI 10.1029/95RS01563 PG 15 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications GA RY692 UT WOS:A1995RY69200026 ER PT J AU BROWN, MA CURLEE, TR ELLIOTT, SR AF BROWN, MA CURLEE, TR ELLIOTT, SR TI EVALUATING TECHNOLOGY INNOVATION PROGRAMS - THE USE OF COMPARISON GROUPS TO IDENTIFY IMPACTS SO RESEARCH POLICY LA English DT Article ID GOVERNMENT AB This paper discusses the pros and cons of alternative comparison groups for evaluating technology innovation programs, and focuses specifically on the selection of a comparison group for the evaluation of the U.S. Department of Energy's (DOE) Energy-Related Inventions Program (ERIP). The pros and cons of five alternative comparison group options are discussed, including: inventor societies, innovation and incubator centers, patent holders, near-participants, and program referrals. Program referrals are selected as a suitable comparison group for evaluating the Energy-Related Inventions Program. Data collected on ERIP participants and referrals provide strong evidence that ERIP-supported technologies achieved their considerable commercial success, at least in part because of the support provided by the DOE. There are large differences between the program referrals and the ERIP participants in terms of several indicators of commercial success. For example, average dollar sales by ERIP participants are an order of magnitude greater than the program referral group. This paper illustrates that the simultaneous tracking of program participants and a matched comparison group can enhance the evaluation of technology innovation programs by helping to isolate the effects of the government program from the host of other factors that influence the commercialization of inventions. RP BROWN, MA (reprint author), OAK RIDGE NATL LAB,POB 2008,MS 6206,OAK RIDGE,TN 37831, USA. NR 15 TC 13 Z9 13 U1 3 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0048-7333 J9 RES POLICY JI Res. Policy PD SEP PY 1995 VL 24 IS 5 BP 669 EP 684 DI 10.1016/0048-7333(94)00785-6 PG 16 WC Management; Planning & Development SC Business & Economics; Public Administration GA RU482 UT WOS:A1995RU48200001 ER PT J AU DAS, S CURLEE, TR RIZY, CG SCHEXNAYDER, SM AF DAS, S CURLEE, TR RIZY, CG SCHEXNAYDER, SM TI AUTOMOBILE RECYCLING IN THE UNITED-STATES - ENERGY IMPACTS AND WASTE GENERATION SO RESOURCES CONSERVATION AND RECYCLING LA English DT Article DE AUTOMOBILE RECYCLING; LIFE CYCLE; ENERGY AB Changes in the trends in the material composition of domestic and imported automobiles and the increasing cost of landfilling the non-recyclable portion of automobiles (automobile shredder residue or ASR) pose questions about the future of automobile recycling in the United States. In response to these challenges, new and innovative approaches to automobile recycling are being developed. This paper presents the findings of a recent study to examine the impacts of these changes on the life cycle energy consumption of automobiles and on the quantity of waste that must be disposed of. Given the recycle status quo, trends in material composition and the viability of recycling the non-metallic components of the typical automobile are of secondary importance when compared to the energy consumed during the life of the automobile. The energy savings resulting from small changes in the fuel efficiency of a vehicle overshadow potential energy losses associated with the adoption of new and possibly non-recyclable materials. Under status quo conditions, the life cycle energy consumed by the typical automobile is projected to decrease from 599 million Btus in 1992 to 565 million Btus in 2000. Energy consumed during the manufacture of the typical car will increase from about 120 to 140 million Btus between 1992 and 2000, while energy used during vehicle operation will decrease from 520 to 480 million Btus. This study projects that energy saved at the recycle step will increase from 41 million Btus in 1992 to 55 million Btus in 2000. This study also investigated the energy impacts of several potential changes to the recycle status quo, including the adoption of technologies to retrieve the heat value of ASR by incineration and the recycle of some or all thermoplastics in the typical automobile. The study estimates that under optimistic conditions -i.e., the recycling of all thermoplastics and the incineration with heat recovery of all remaining ASR -about 8 million Btus could be saved per automobile -i.e., an increase from about 55 to 63 million Btus. In the more realistic scenario -i.e., the recycling of easy-to-remove thermoplastic components (bumper covers and dashboards) -the potential energy savings are about 1 million Btus per vehicle. It is estimated that the annual quantity of ASR in the United States could be reduced from about 5 billion pounds to as little billion pounds of ash if all ASR is incinerated. Alternatively, ASR quantity could be reduced to about 4 billion pounds if all thermoplastics in automobiles are recycled. However, in the case of recycling only thermoplastic bumper covers and dashboards, the quantity of ASR would be reduced by only 0.2 billion pounds. A significant reduction or increase in the size of the ASR waste stream will not in itself have a large impact on the solid waste stream in the United States. RP DAS, S (reprint author), OAK RIDGE NATL LAB,DIV ENERGY,ENERGY & GLOBAL CHANGE ANAL SECT,OAK RIDGE,TN 37831, USA. NR 0 TC 32 Z9 34 U1 0 U2 5 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0921-3449 J9 RESOUR CONSERV RECY JI Resour. Conserv. Recycl. PD SEP PY 1995 VL 14 IS 3-4 BP 265 EP 284 DI 10.1016/0921-3449(95)00021-A PG 20 WC Engineering, Environmental; Environmental Sciences SC Engineering; Environmental Sciences & Ecology GA TB332 UT WOS:A1995TB33200008 ER PT J AU SAVIKHIN, S AF SAVIKHIN, S TI SHOT-NOISE-LIMITED DETECTION OF ABSORBENCY CHANGES INDUCED BY SUBPICOJOULE LASER-PULSES IN OPTICAL PUMP-PROBE EXPERIMENTS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article ID MULTIPLE MODULATION; SPECTROSCOPY AB We describe a high-frequency modulation and detection system capable of measuring absorbance changes Delta A on the order of 10(-6) in optical pump-probe experiments using submilliwatt laser powers from a mode-locked ultrafast laser. For probe beam powers greater than or equal to 9 mu W, the system offers nearly shot-noise-limited performance. (C) 1995 American Institute of Physics. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RP SAVIKHIN, S (reprint author), US DOE,AMES LAB,AMES,IA 50011, USA. NR 10 TC 22 Z9 22 U1 1 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD SEP PY 1995 VL 66 IS 9 BP 4470 EP 4474 DI 10.1063/1.1145344 PG 5 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA RV679 UT WOS:A1995RV67900008 ER PT J AU HE, YD HANCOX, CI AF HE, YD HANCOX, CI TI MEASUREMENT OF LOW-ENERGY ION TRACKS IN CR-39 PLASTIC WITH AN ATOMIC-FORCE MICROSCOPE SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article ID DETECTORS; SEARCH; MONOPOLES AB We demonstrate that an atomic force microscope allows one to measure the detailed geometry of etch pits due to heavy ions with kinetic energies of 1-10 keV/amu at small distance scales registered in the nuclear track detector CR-39 plastic. With a typical range of a few hundred nm and an etch pit depth on the order of a few tens of nm, these ion tracks cannot be measured using conventional methods. With the technique developed in this work one is able to study the response of CR-39 plastic to particles at low ionization rates by precise measurements of low energy ion tracks. Among other applications, of particular interest is to explore the response of CR-39 in the regime in which nuclear stopping is comparable to electronic stopping. (C) 1995 American Institute of Physics. C1 UNIV CALIF BERKELEY,CTR PARTICLE ASTROPHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,INST NUCL & PARTICLE PHYS,BERKELEY,CA 94720. RP HE, YD (reprint author), UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720, USA. NR 17 TC 11 Z9 11 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD SEP PY 1995 VL 66 IS 9 BP 4575 EP 4582 DI 10.1063/1.1145291 PG 8 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA RV679 UT WOS:A1995RV67900025 ER PT J AU SU, MC KUMARAN, SS LIM, KP MICHAEL, JV AF SU, MC KUMARAN, SS LIM, KP MICHAEL, JV TI MULTIPASS OPTICAL-DETECTION IN REFLECTED SHOCK-WAVES - APPLICATION TO OH RADICALS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article ID RATE CONSTANTS; RESONANCE-ABSORPTION; CHEMICAL-KINETICS; HYDROXYL RADICALS; REACTION H; TUBE; LASER; TEMPERATURE; CH4; PHOTOLYSIS AB An UV multipass optical absorption method to increase the sensitivity for radical species detection has been developed for high temperature chemical kinetics experiments in a shock tube. The specific illustration is for OH radicals in the reflected shock wave regime. With a resonance lamp source, 12 optical passes were found to give a sufficient signal-to-noise ratio for a large range of [OH]. Two different calibration procedures using the reaction systems H-2/O-2 and C2H5I/NO2 were used, and a curve of growth was determined. The measured absorbance (ABS), was found to be dependent on both temperature and [OH]. The results can be expressed in a modified Beer's law form as, (ABS) = 9.49 x 10(-12)T(-0.5281) [OH](0.8736). Using this curve of growth, the absorbance data from the above kinetics experiments were converted to concentration profiles. These were fully modeled with previously established mechanisms, giving excellent fits. The multipass method is compared to earlier systems that used both resonance lamp and laser absorption sources, and the increase in sensitivity is found to be substantial due primarily to the increased path length. This increased sensitivity inhibits the effects of any possible secondary chemistry thereby allowing chemically isolated experiments on OH + molecules to be performed at high temperatures. (C) 1995 American Institute of Physics. RP SU, MC (reprint author), ARGONNE NATL LAB,DIV CHEM,9700 S CASS AVE,ARGONNE,IL 60439, USA. RI Michael, Joe/E-3907-2010 NR 46 TC 31 Z9 31 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD SEP PY 1995 VL 66 IS 9 BP 4649 EP 4654 DI 10.1063/1.1145302 PG 6 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA RV679 UT WOS:A1995RV67900037 ER PT J AU ERSKINE, DJ AF ERSKINE, DJ TI HIGH-PASS FILTERING EXTENDS THE DYNAMIC-RANGE FOR RECORDING PULSE SHAPES SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article AB When a roughly flattopped pulse electrical pulse is recorded by a digitizer, signal clipping can destroy information that is crucial to the experimenter. This is particularly true in release-overtake shock experiments, where the occurrence time of a change in slope at the top of a photomultiplier pulse is sought. We have invented a simple and accurate method to record the pulse that is robust to clipping. The digitizer records the signal through a high-pass circuit. The inverse of the high-pass filter is applied via fast Fourier transform during analysis. The insensitivity to clipping allows one to record the change in slope signature at a higher gain, and thus with an improved signal to noise ratio. pulse. (C) 1995 American Institute of Physics. RP ERSKINE, DJ (reprint author), LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0034-6748 J9 REV SCI INSTRUM JI Rev. Sci. Instrum. PD SEP PY 1995 VL 66 IS 9 BP 4703 EP 4706 DI 10.1063/1.1146435 PG 4 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA RV679 UT WOS:A1995RV67900046 ER PT J AU SHERBY, OD WADSWORTH, J AF SHERBY, OD WADSWORTH, J TI DAMASCUS STEEL AND SUPERPLASTICITY .2. WELDED DAMASCUS STEELS SO SAMPE JOURNAL LA English DT Article ID LAMINATED COMPOSITES; BEHAVIOR C1 LAWRENCE LIVERMORE NATL LAB,CHEM & MAT SCI DIRECTORATE,LIVERMORE,CA. RP SHERBY, OD (reprint author), STANFORD UNIV,DEPT MAT SCI & ENGN,STANFORD,CA 94305, USA. NR 22 TC 6 Z9 6 U1 0 U2 3 PU SAMPE PUBLISHERS PI COVINA PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 SN 0091-1062 J9 SAMPE J JI Sampe J. PD SEP-OCT PY 1995 VL 31 IS 5 BP 32 EP 39 PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA RT315 UT WOS:A1995RT31500007 ER PT J AU JOY, DC AF JOY, DC TI A DATABASE ON ELECTRON-SOLID INTERACTIONS SO SCANNING LA English DT Article DE SECONDARY ELECTRON YIELD; BACKSCATTERED ELECTRON YIELD; IONIZATION CROSS SECTION; STOPPING POWER ID SECONDARY-ELECTRON; CROSS-SECTIONS; BACKSCATTERING COEFFICIENT; INELASTIC-SCATTERING; SHELL IONIZATION; LOW ENERGIES; EMISSION; YIELD; IMPACT; BOMBARDMENT AB Monte Carlo modeling of electron-solid interactions requires a detailed and accurate supply of experimental data on which to base its physics and against which to test its predictions. To meet this need, a collection of data-comprising measurements of secondary and backscattered electron yields, electron stopping powers, and x-ray ionization cross sections, as a function of energy-has been assembled from published sources. The quality and quantity of the compilation varies widely, with little or no data being available for the majority of elements in the periodic table, while results for complex materials of current technologic interest are also almost nonexistent. To meet the needs of Monte Carlo simulation in areas such as dimensional metrology or microanalysis, a program of systematic measurements is required. C1 OAK RIDGE NATL LAB,OAK RIDGE,TN. RP JOY, DC (reprint author), UNIV TENNESSEE,EM FACIL,KNOXVILLE,TN 37996, USA. NR 82 TC 98 Z9 102 U1 1 U2 17 PU FAMS INC PI MAHWAH PA BOX 832, MAHWAH, NJ 07430 SN 0161-0457 J9 SCANNING JI Scanning PD SEP-OCT PY 1995 VL 17 IS 5 BP 270 EP 275 PG 6 WC Instruments & Instrumentation; Microscopy SC Instruments & Instrumentation; Microscopy GA TC946 UT WOS:A1995TC94600002 ER PT J AU POSTON, JA AF POSTON, JA TI SIMPLE MODIFICATIONS FOR ACCURATE HIGH-TEMPERATURE GAS EXPOSURES USING SCANNING ELECTRON-MICROSCOPY SO SCANNING LA English DT Article DE SCANNING ELECTRON MICROSCOPE; SCANNING ELECTRON MICROSCOPY; ENVIRONMENTAL SCANNING ELECTRON MICROSCOPY; HOT STAGE SUBSTAGE; HIGH-TEMPERATURE GAS EXPOSURE; DESULFURIZATION SORBENTS ID SORBENTS AB Relatively low-cost modifications to standard commercial scanning electron microscopes (SEM) that allow accurate exposure of sample(s) to noncorrosive gases at ambient and high temperatures are outlined. Energy-dispersive spectroscopic analysis of sample(s) exposed to noncorrosive gases at high temperatures is demonstrated. Gas exposure is limited to pressures of less than 10(-4) torr (1.33 x 10(-2) Pa) as a result of limitations on SEM system operation and SEM safety interlocks. Gases are limited to noncorrosive types as a result of potential damage to system detection devices and internal mechanical parts. RP POSTON, JA (reprint author), US DOE,MORGANTOWN ENERGY TECHNOL CTR,DIV GASIFICAT CLEANUP PROJECTS,3610 COLLINS FERRY RD,MORGANTOWN,WV 26505, USA. NR 11 TC 1 Z9 1 U1 0 U2 0 PU FAMS INC PI MAHWAH PA BOX 832, MAHWAH, NJ 07430 SN 0161-0457 J9 SCANNING JI Scanning PD SEP-OCT PY 1995 VL 17 IS 5 BP 316 EP 321 PG 6 WC Instruments & Instrumentation; Microscopy SC Instruments & Instrumentation; Microscopy GA TC946 UT WOS:A1995TC94600010 ER PT J AU NELLIS, WJ ROSS, M HOLMES, NC AF NELLIS, WJ ROSS, M HOLMES, NC TI TEMPERATURE-MEASUREMENTS OF SHOCK-COMPRESSED LIQUID-HYDROGEN - IMPLICATIONS FOR THE INTERIOR OF JUPITER SO SCIENCE LA English DT Article ID EQUATION-OF-STATE; MOLECULAR-HYDROGEN; FLUID NITROGEN; GIANT PLANETS; HIGH-DENSITY; DISSOCIATION; DEUTERIUM; KBAR AB Shock temperatures of hydrogen up to 5200 kelvin were measured optically at pressures up to 83 gigapascals (830 kilobars). At highest pressures, the measured temperatures are substantially lower than predicted. These lower temperatures are caused by a continuous dissociative phase transition above 20 gigapascals. Because hydrogen is in thermal equilibrium in shock-compression experiments, the theory derived from the shock data can be applied to Jupiter. The planet's molecular envelope is cooler and has much less temperature variation than previously believed. The continuous dissociative phase transition suggests that there is no sharp boundary between Jupiter's molecular mantle and its metallic core. A possible convectively quiescent boundary layer might induce an additional layer in the molecular region, as has been predicted. C1 LAWRENCE LIVERMORE NATL LAB,DIV H,LIVERMORE,CA 94550. RP NELLIS, WJ (reprint author), LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550, USA. NR 26 TC 75 Z9 76 U1 0 U2 8 PU AMER ASSOC ADVAN SCIENCE PI WASHINGTON PA 1333 H ST NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD SEP 1 PY 1995 VL 269 IS 5228 BP 1249 EP 1252 DI 10.1126/science.7652570 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RR842 UT WOS:A1995RR84200028 PM 7652570 ER PT J AU HOAGLAND, W AF HOAGLAND, W TI SOLAR-ENERGY SO SCIENTIFIC AMERICAN LA English DT Article C1 NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401. PROCTER & GAMBLE CO,CINCINNATI,OH 45239. SYNTEX INC,PALO ALTO,CA 94304. NR 4 TC 4 Z9 4 U1 0 U2 2 PU SCI AMERICAN INC PI NEW YORK PA 415 MADISON AVE, NEW YORK, NY 10017 SN 0036-8733 J9 SCI AM JI Sci.Am. PD SEP PY 1995 VL 273 IS 3 BP 170 EP 173 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RP670 UT WOS:A1995RP67000049 ER PT J AU FURTH, HP AF FURTH, HP TI FUSION SO SCIENTIFIC AMERICAN LA English DT Article RP FURTH, HP (reprint author), PRINCETON UNIV,PLASMA PHYS LAB,PRINCETON,NJ 08544, USA. NR 3 TC 6 Z9 6 U1 1 U2 1 PU SCI AMERICAN INC PI NEW YORK PA 415 MADISON AVE, NEW YORK, NY 10017 SN 0036-8733 J9 SCI AM JI Sci.Am. PD SEP PY 1995 VL 273 IS 3 BP 174 EP 177 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RP670 UT WOS:A1995RP67000050 ER PT J AU RODEL, J PRIELIPP, H CLAUSSEN, N STERNITZKE, M ALEXANDER, KB BECHER, PF SCHNEIBEL, JH AF RODEL, J PRIELIPP, H CLAUSSEN, N STERNITZKE, M ALEXANDER, KB BECHER, PF SCHNEIBEL, JH TI NI3AL/AL2O3 COMPOSITES WITH INTERPENETRATING NETWORKS SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article ID FRACTURE; STRENGTH; NI3(AL; TI) C1 TU HAMBURG HARBURG,ADV CERAM GRP,D-21073 HAMBURG,GERMANY. UNIV OXFORD,DEPT MAT,OXFORD OX1 3PH,ENGLAND. OAK RIDGE NATL LAB,DIV MET & CERAM,OAK RIDGE,TN 37831. RP RODEL, J (reprint author), TH DARMSTADT,FACHGEBEIT NICHTMET ANORGAN WERKSTOFFE,D-64295 DARMSTADT,GERMANY. NR 16 TC 54 Z9 58 U1 1 U2 4 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 SEP 1 PY 1995 VL 33 IS 5 BP 843 EP 848 DI 10.1016/0956-716X(95)00301-B PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA RN868 UT WOS:A1995RN86800023 ER PT J AU BECHER, PF HSUEH, CH ALEXANDER, KB LIN, HT WARWICK, WH WESTMORELAND, CG WATERS, SB AF BECHER, PF HSUEH, CH ALEXANDER, KB LIN, HT WARWICK, WH WESTMORELAND, CG WATERS, SB TI STRUCTURAL CERAMICS INCORPORATING WHISKERS, PLATELETS, AND PARTICULATE PHASES SO SILICATES INDUSTRIELS LA English DT Article ID R-CURVE BEHAVIOR; TOUGHENING BEHAVIOR; SILICON-CARBIDE; TETRAGONAL ZRO2; GRAIN-SIZE; TRANSFORMATION; COMPOSITE; ZIRCONIA; FRACTURE; TOUGHNESS AB Advances in the development of ceramics toughened with whiskers, particles or platelets are reviewed with emphasis on the development of both fracture strength and toughness. In the first system described here, the primary focus is on toughening attained by crack bridging processes (e.g., frictional bridging and pullout) in the wake of the crack tip. Examples of the influence of resultant improvements in other mechanical properties (e.g., strength, fatigue, and thermal resistance) are also given for whisker-reinforced aluminas. It is shown that similar increases in fracture toughness may also be brought about by the incorporation of platelet phases in ceramics, either by their addition or by their formation during densification. In addition, the development of ceramic matrix composites containing transformable tetragonal zirconia grains is discussed. Here, it is shown that both the zirconia grain size and content, combined with thermal expansion mismatch stresses, influence the transformability of the zirconia and the resultant transformation toughening effects. Examples reveal that by addressing the microstructural characteristics, as well as the reinforcement and matrix properties, high strength toughened ceramics with exceptional damage resistance can be developed. RP BECHER, PF (reprint author), OAK RIDGE NATL LAB, OAK RIDGE, TN 37831 USA. RI Hsueh, Chun-Hway/G-1345-2011 NR 62 TC 1 Z9 1 U1 2 U2 4 PU BELGIAN CERAMIC SOC PI MONS PA 4 AVE GOUVERNEUR CORNEZ, B-7000 MONS, BELGIUM SN 0037-5225 J9 SILIC IND JI Silic. Ind. PD SEP-OCT PY 1995 VL 60 IS 9-10 BP 239 EP 249 PG 11 WC Materials Science, Ceramics SC Materials Science GA TJ507 UT WOS:A1995TJ50700002 ER PT J AU SINGER, N AF SINGER, N TI CHIMNEY SWEEPS ARE PLUNGING INTO THEIR WORK AGAIN SO SMITHSONIAN LA English DT Article C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SMITHSONIAN ASSOCIATES PI WASHINGTON PA 900 JEFFERSON DRIVE, WASHINGTON, DC 20560 SN 0037-7333 J9 SMITHSONIAN JI Smithsonian PD SEP PY 1995 VL 26 IS 6 BP 97 EP & PG 0 WC Humanities, Multidisciplinary SC Arts & Humanities - Other Topics GA RQ932 UT WOS:A1995RQ93200018 ER PT J AU HALVORSON, JJ SMITH, JL BOLTON, H ROSSI, RE AF HALVORSON, JJ SMITH, JL BOLTON, H ROSSI, RE TI EVALUATING SHRUB-ASSOCIATED SPATIAL PATTERNS OF SOIL PROPERTIES IN A SHRUB-STEPPE ECOSYSTEM USING MULTIPLE-VARIABLE GEOSTATISTICS SO SOIL SCIENCE SOCIETY OF AMERICA JOURNAL LA English DT Article ID NITROGEN MINERALIZATION; MICROBIAL BIOMASS; PLANT SUCCESSION; DESERT ECOSYSTEM; LANDSCAPE; ECOLOGY; INFORMATION; HISTORIES; QUALITY; CARBON AB Geostatistics are often calculated for a single variable at a time, even though many natural phenomena are functions of several variables. The objective of this work was to demonstrate a nonparametric approach for assessing the spatial characteristics of multiple-variable phenomena. Specifically, we analyzed the spatial characteristics of resource islands in the soil under big sagebrush (Artemisia tridentata Nutt.), a dominant shrub in the intermountain western USA. For our example, we defined resource islands as a function of six soil variables representing concentrations of soil resources, populations of microorganisms, and soil microbial physiological variables. By collectively evaluating the indicator transformations of these individual variables, we created a new data set, termed a multiple-variable indicator transform or MVIT. Alternate MVITs were obtained by varying the selection criteria. Each MVIT was analyzed with variography to characterize spatial continuity, and with indicator kriging to predict the combined probability of their occurrence at unsampled locations in the landscape. Simple graphical analysis and variography demonstrated spatial dependence for all individual soil variables. Analysis also showed that ensembles of variables were not randomly distributed, but rather were correlated systematically within the landscape. Maps derived from ordinary kriging of MVITs suggested that the combined probabilities for encountering zones of above-median resources were greatest near big sagebrush. As the selection criteria for defining a resource island became more stringent, the area of the resource island decreased. Cross-variography revealed that big sagebrush was more positively correlated with MVIT resource islands than were grass species, the other major plant type. C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. WASHINGTON STATE UNIV, USDA ARS, LAND MANAGEMENT & WATER CONSERVAT RES UNIT, PULLMAN, WA 99164 USA. RP HALVORSON, JJ (reprint author), WASHINGTON STATE UNIV, 215 JOHNSON HALL, PULLMAN, WA 99164 USA. RI Bolton, Harvey/E-5583-2011 NR 51 TC 52 Z9 64 U1 2 U2 11 PU SOIL SCI SOC AMER PI MADISON PA 677 SOUTH SEGOE ROAD, MADISON, WI 53711 SN 0361-5995 J9 SOIL SCI SOC AM J JI Soil Sci. Soc. Am. J. PD SEP-OCT PY 1995 VL 59 IS 5 BP 1476 EP 1487 PG 12 WC Soil Science SC Agriculture GA RU917 UT WOS:A1995RU91700039 ER PT J AU VENKITARAMAN, A ROBERTS, PM SHARMA, MM AF VENKITARAMAN, A ROBERTS, PM SHARMA, MM TI ULTRASONIC REMOVAL OF NEAR-WELLBORE DAMAGE CAUSED BY FINES AND MUD SOLIDS SO SPE DRILLING & COMPLETION LA English DT Article AB Laboratory experiments were conducted to investigate the feasibility of using ultrasonic energy to reduce formation damage caused by fines and mud solids. Cores were damaged with drilling muds in a dynamic filtration cell. Damage caused by fines migration was simulated with freshwater injection. The damaged cores were then treated with ultrasonic energy at various frequencies and intensities. The experiments were conducted with fully brine-saturated cores and cores partially saturated with decane. Permeability was monitored as a function of ultrasonic treatment time during backflow for three different sections of each core. Permeability increase, the depth of treatment, and the ultrasonic energy requirements were investigated for both sandstone and limestone cores. The results showed that permeability increased by a factor of three to seven after ultrasonic treatment for cores that were damaged by mud solids and fines migration. Treatment was successful for frequencies of approximately 20 to 80 kHz and acoustic intensities of approximately 20 to 250 W/m(2). For these wavefield parameters, the effective depth of treatment for reducing fines damage was approximately 2.5 in. Damage caused by mud infiltration penetrated only the first 2.5 in. of the cores, and thus, ultrasonic treatment had no effect on deeper sections. C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM. UNIV TEXAS,AUSTIN,TX 78712. NR 10 TC 10 Z9 10 U1 0 U2 0 PU SOC PETROLEUM ENG PI RICHARDSON PA 222 PALISADES CREEK DR, RICHARDSON, TX 75080 SN 1064-6671 J9 SPE DRILL COMPLETION JI SPE Drill. & Complet. PD SEP PY 1995 VL 10 IS 3 BP 193 EP 197 PG 5 WC Engineering, Petroleum SC Engineering GA RU739 UT WOS:A1995RU73900009 ER PT J AU KING, AW EMANUEL, WR WULLSCHLEGER, SD POST, WM AF KING, AW EMANUEL, WR WULLSCHLEGER, SD POST, WM TI IN SEARCH OF THE MISSING CARBON SINK - A MODEL OF TERRESTRIAL BIOSPHERIC RESPONSE TO LAND-USE CHANGE AND ATMOSPHERIC CO2 SO TELLUS SERIES B-CHEMICAL AND PHYSICAL METEOROLOGY LA English DT Article; Proceedings Paper CT 4th CO(2) International Conference CY SEP, 1993 CL CARQUEIRANNE, FRANCE ID TROPICAL DEFORESTATION; CLIMATIC-CHANGE; GLOBAL CLIMATE; CYCLE; STORAGE; ECOSYSTEMS; DEPOSITION; PLANTS AB Estimates of the net exchange of carbon between the terrestrial biosphere and the atmosphere may be too large because the models of carbon release from changes in land use do not allow for enhanced carbon assimilation by the terrestrial biosphere in response to increasing atmospheric CO2. We address this deficiency with a model of terrestrial biosphere that includes both ecosystem response to land-use perturbation and vegetation response to atmospheric CO2. Model inputs specify the areas affected by land-use change since 1700. The carbon dynamics of the affected areas are described by an area distribution function for vegetation carbon density and a compartment model of carbon in vegetation, litter, and soil. Vegetation growth is modeled as the difference between net primary production (NPP) and mortality. NPP, the net flux of carbon from atmosphere to vegetation, is a logistic function of vegetation carbon density. The response of NPP to atmospheric CO2 is modeled with three response functions: a logarithmic, a rectangular-hyperbolic, and a response function derived from a biochemical model of C-3 photosynthesis. The response functions are parameterized by ecosystem type with data from CO2 exposure experiments. Elevated CO2 affects the NPP of both undisturbed and recovering ecosystems. We use the model to test the hypothesis that the CO2 enhancement of terrestrial NPP explains the historical missing carbon sink of the the global carbon cycle budget. Our estimates of the biosphere's CO2 enhanced carbon flux are much smaller than the reconstructed missing carbon sink. We conclude that our model results do not support the hypothesis. RP KING, AW (reprint author), OAK RIDGE NATL LAB, DIV ENVIRONM SCI, POB 2008, OAK RIDGE, TN 37831 USA. RI Wullschleger, Stan/B-8297-2012; Post, Wilfred/B-8959-2012 OI Wullschleger, Stan/0000-0002-9869-0446; NR 62 TC 30 Z9 52 U1 2 U2 11 PU CO-ACTION PUBLISHING PI JARFALLA PA RIPVAGEN 7, JARFALLA, SE-175 64, SWEDEN SN 0280-6509 EI 1600-0889 J9 TELLUS B JI Tellus Ser. B-Chem. Phys. Meteorol. PD SEP PY 1995 VL 47 IS 4 BP 501 EP 519 DI 10.1034/j.1600-0889.47.issue4.9.x PG 19 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA RU586 UT WOS:A1995RU58600009 ER PT J AU Perkins, GA Downing, KH Glaeser, RM AF Perkins, GA Downing, KH Glaeser, RM TI Crystallographic extraction and averaging of data from small image areas SO ULTRAMICROSCOPY LA English DT Article ID ELECTRON-MICROSCOPY; PURPLE MEMBRANE; RESOLUTION; CRYSTALS; BEAM; MICROGRAPHS AB The accuracy of structure factor phases determined from electron microscope images is determined mainly by the level of statistical significance, which is limited by the low level of allowed electron exposure and by the number of identical unit cells that can be averaged. It is shown here that Fourier transforms of small image fields of purple membrane (a two-dimensional crystal consisting of bacteriorhodopsin and endogenous lipids) can be combined to provide the same quality of phases as are obtained from Fourier transforms of large image fields of the same total area. Although Fourier transforms of such small image fields are statistically significant only at lower resolution, the data from many such image fields can be averaged at the calculated positions of high-resolution reciprocal lattice points to give accurate phases. More specifically, when images of a size that can be recorded with CCD cameras are processed individually, key parameters including lattice vectors, defocus, crystal and beam tilts, and common phase origin can be accurately determined. C1 LAWRENCE BERKELEY LAB,DIV LIFE SCI,DONNER LAB,BERKELEY,CA 94720. UNIV CALIF BERKELEY,DEPT MOLEC & CELL BIOL,BERKELEY,CA 94720. UNIV GRONINGEN,BIOSON RES INST,9747 AG GRONINGEN,NETHERLANDS. FU NIGMS NIH HHS [1 GM 36884] NR 16 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-3991 J9 ULTRAMICROSCOPY JI Ultramicroscopy PD SEP PY 1995 VL 60 IS 2 BP 283 EP 294 DI 10.1016/0304-3991(95)00063-5 PG 12 WC Microscopy SC Microscopy GA TZ147 UT WOS:A1995TZ14700009 PM 7502383 ER PT J AU Saunders, M Bird, DM Zaluzec, NJ Burgess, WG Preston, AR Humphreys, CJ AF Saunders, M Bird, DM Zaluzec, NJ Burgess, WG Preston, AR Humphreys, CJ TI Measurement of low-order structure factors for silicon from zone-axis CBED patterns SO ULTRAMICROSCOPY LA English DT Article AB The ability to acquire digitally collected, energy-filtered electron diffraction patterns has permitted the development of fully quantitative methods of pattern analysis based on fitting theoretical calculations to experimental intensities. We have developed a method of extracting accurate low-order structure factor information from zone-axis CBED patterns using an automated pattern matching technique. The feasibility of such an approach has already been established by fitting to simulated data-sets. Results are now presented from pattern matching calculations using energy-filtered Si [110] zone-axis patterns obtained with a serial EELS detector attached to a Philips EM420 TEM. Fits to patterns at two different sample thicknesses (measured to be 2761 and 4092 Angstrom) are discussed. The results show good agreement with the most accurate Si structure factors obtained from X-ray measurements. C1 UNIV BATH,SCH PHYS,BATH BA2 7AY,AVON,ENGLAND. ARGONNE NATL LAB,DIV SCI MAT,ARGONNE,IL. UNIV CAMBRIDGE,DEPT MAT SCI & MET,CAMBRIDGE CB2 3QZ,ENGLAND. RI Saunders, Martin/B-3082-2011 OI Saunders, Martin/0000-0001-6873-7816 NR 17 TC 54 Z9 54 U1 1 U2 9 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0304-3991 J9 ULTRAMICROSCOPY JI Ultramicroscopy PD SEP PY 1995 VL 60 IS 2 BP 311 EP 323 DI 10.1016/0304-3991(95)00058-1 PG 13 WC Microscopy SC Microscopy GA TZ147 UT WOS:A1995TZ14700011 ER PT J AU YEH, TCJ MASPLA, J WILLIAMS, TM MCCARTHY, JF AF YEH, TCJ MASPLA, J WILLIAMS, TM MCCARTHY, JF TI OBSERVATION AND 3-DIMENSIONAL SIMULATION OF CHLORIDE PLUMES IN A SANDY AQUIFER UNDER FORCED-GRADIENT CONDITIONS SO WATER RESOURCES RESEARCH LA English DT Article ID 2-WELL TRACER TEST; SOLUTE TRANSPORT; HYDRAULIC CONDUCTIVITY; SPATIAL MOMENTS; STOCHASTIC-ANALYSIS; NUMERICAL-MODEL; POROUS-MEDIA; MOBILE SITE; WATER-FLOW; DISPERSION AB Two-well, forced-gradient tracer experiments over a distance of 5 m were carried out in a coastal sandy aquifer at Georgetown, South Carolina. The evolution of three-dimensional chloride plumes during two tracer experiments was observed. A three-dimensional finite element model for flow and transport was used with extensive hydraulic conductivity data obtained from slug tests to assess our ability to predict solute transport in the aquifer. Results showed that our predictive ability is limited to the bulk behavior of the plumes, which is mainly controlled by some ''significant'' heterogeneities. In addition, hydraulic conductivity values estimated by the Hvorslev method for analysis of slug tests best represented the hydraulic conductivity distribution of the sandy aquifer. Finally, the results of a long-term experiment illustrate the importance of temporal variability in boundary conditions in the prediction of solute transport in aquifers. C1 UNIV AUTONOMA BARCELONA,DEPT GEOL,UNITAT GEODINAM EXTERNA & HIDROGEOL,E-08193 BARCELONA,SPAIN. OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831. CLEMSON UNIV,BELLE W BARUCH FOREST SCI INST,COLL FOREST & RECREAT RESOURCES,GEORGETOWN,SC. RP YEH, TCJ (reprint author), UNIV ARIZONA,DEPT HYDROL & WATER RESOURCES,TUCSON,AZ 85721, USA. NR 26 TC 26 Z9 26 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0043-1397 J9 WATER RESOUR RES JI Water Resour. Res. PD SEP PY 1995 VL 31 IS 9 BP 2141 EP 2157 PG 17 WC Environmental Sciences; Limnology; Water Resources SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources GA RT301 UT WOS:A1995RT30100002 ER PT J AU CAREY, AE WHEATCRAFT, SW GLASS, RJ OROURKE, JP AF CAREY, AE WHEATCRAFT, SW GLASS, RJ OROURKE, JP TI NON-FICKIAN IONIC-DIFFUSION ACROSS HIGH-CONCENTRATION GRADIENTS SO WATER RESOURCES RESEARCH LA English DT Article ID SOLUTE TRANSPORT; VARIABLE DENSITY; SIMULATION; WATER; FLOW; 25-DEGREES-C; INTRUSION; BASIN; MODEL AB A non-Fickian physico-chemical model for electrolyte transport in high-ionic strength systems is developed and tested with laboratory experiments with copper sulfate as an example electrolyte. The new model is based on irreversible thermodynamics and uses measured mutual diffusion coefficients, varying with concentration, Compared to a traditional Fickian model, the new model predicts less diffusion and asymmetric diffusion profiles. Laboratory experiments show diffusion rates even smaller than those predicted by our non-Fickian model, suggesting that there are additional, unaccounted for processes retarding diffusion. Ionic diffusion rates may be a limiting factor in transporting salts whose effect on fluid density will in turn significantly affect the flow regime. These findings have important implications for understanding and predicting solute transport in geologic settings where dense, saline solutions occur. C1 SANDIA NATL LABS,DIV GEOSCI,ALBUQUERQUE,NM 87185. UNIV NEVADA,DEPT GEOL SCI 172,RENO,NV 89557. RP CAREY, AE (reprint author), UNIV NEVADA,HYDROL HYDROGEOL PROGRAM,RENO,NV 89557, USA. NR 30 TC 13 Z9 14 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0043-1397 J9 WATER RESOUR RES JI Water Resour. Res. PD SEP PY 1995 VL 31 IS 9 BP 2213 EP 2218 DI 10.1029/95WR01679 PG 6 WC Environmental Sciences; Limnology; Water Resources SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water Resources GA RT301 UT WOS:A1995RT30100008 ER PT J AU MEFFE, GK VIEDERMAN, S AF MEFFE, GK VIEDERMAN, S TI COMBINING SCIENCE AND POLICY IN CONSERVATION BIOLOGY SO WILDLIFE SOCIETY BULLETIN LA English DT Article DE BIOPOLITICS; CONSERVATION BIOLOGY; POLICY; SCIENCE C1 JESSE SMITH NOYES FDN,NEW YORK,NY 10016. RP MEFFE, GK (reprint author), UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,DRAWER E,AIKEN,SC 29802, USA. NR 8 TC 41 Z9 46 U1 1 U2 5 PU WILDLIFE SOC PI BETHESDA PA 5410 GROSVENOR LANE, BETHESDA, MD 20814-2197 SN 0091-7648 J9 WILDLIFE SOC B JI Wildl. Soc. Bull. PD FAL PY 1995 VL 23 IS 3 BP 327 EP 332 PG 6 WC Biodiversity Conservation SC Biodiversity & Conservation GA RR480 UT WOS:A1995RR48000006 ER PT J AU HEGEDUS, F WOBRAUSCHEK, P STRELI, C WINKLER, P RIEDER, R LADISICH, W VICTORIA, M RYON, RW SOMMER, WF AF HEGEDUS, F WOBRAUSCHEK, P STRELI, C WINKLER, P RIEDER, R LADISICH, W VICTORIA, M RYON, RW SOMMER, WF TI DETECTION OF TRANSMUTATIONAL ELEMENTS IN COPPER BY MEANS OF TOTAL-REFLECTION X-RAY-FLUORESCENCE SPECTROMETRY USING SYNCHROTRON-RADIATION SO X-RAY SPECTROMETRY LA English DT Article AB High-purity copper samples were irradiated with high-energy protons and neutrons, The concentration of transmutational elements was measured by means of the total reflection x-ray fluorescence method using synchrotron radiation, The spectra of non-irradiated samples were substracted from the spectra of the irradiated samples, By this evaluation method, the minimum detectable concentration was as low as 1.5 mu g g(-1) in a copper matrix. C1 UNIV VIENNA,ATOMINST,A-1020 VIENNA,AUSTRIA. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. RP HEGEDUS, F (reprint author), CRPP,EPFL,DIV FUS TECHNOL MAT,CH-5232 VILLIGEN,SWITZERLAND. NR 1 TC 8 Z9 8 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0049-8246 J9 X-RAY SPECTROM JI X-Ray Spectrom. PD SEP-OCT PY 1995 VL 24 IS 5 BP 253 EP 254 DI 10.1002/xrs.1300240508 PG 2 WC Spectroscopy SC Spectroscopy GA RV719 UT WOS:A1995RV71900007 ER PT J AU SOKOLOV, IM LERNER, PB AF SOKOLOV, IM LERNER, PB TI MOBILITY AND LIFETIME OF NEGATIVE CHARGES IN LIQUID H-2 SO ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER LA English DT Article; Proceedings Paper CT 128th WE-Heraeus Seminar on Ions and Atoms in Superfluid Helium CY MAY 16-19, 1994 CL INT WISSENSCHAFTSFORUM HEIDELBERG, HEIDELBERG, GERMANY HO INT WISSENSCHAFTSFORUM HEIDELBERG AB Recent experiments on the mobility of e(-) in liquid H-2 have shown features that differ drastically from those of liquid He, although the adopted theories for such mobilities are quite similar. The differences are attributed to the existence of a second type of charge carriers (different from bubbles), namely H-(H-2)(x)-clusters. The effective radius and the decay channels of these carriers are investigated theoretically. C1 LOS ALAMOS NATL LAB, LOS ALAMOS, NM 87545 USA. PN LEBEDEV PHYS INST, MOSCOW 117924, RUSSIA. RP SOKOLOV, IM (reprint author), UNIV FREIBURG, RHEINSTR 12, D-79104 FREIBURG, GERMANY. OI Lerner , Peter/0000-0002-3086-0170 NR 6 TC 2 Z9 2 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0722-3277 J9 Z PHYS B CON MAT JI Z. Phys. B-Condens. Mat. PD SEP PY 1995 VL 98 IS 3 BP 437 EP 438 DI 10.1007/BF01338421 PG 2 WC Physics, Condensed Matter SC Physics GA RZ187 UT WOS:A1995RZ18700030 ER PT J AU CIUCHINI, M FRANCO, E MARTINELLI, G REINA, L SILVESTRINI, L AF CIUCHINI, M FRANCO, E MARTINELLI, G REINA, L SILVESTRINI, L TI AN UPGRADED ANALYSIS OF EPSILON'/EPSILON AT THE NEXT-TO-LEADING ORDER SO ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS LA English DT Article ID LIGHT-QUARK MASSES; ANOMALOUS DIMENSION MATRIX; QCD NONLEADING CORRECTIONS; WEAK NONLEPTONIC DECAYS; B-MESON DECAY; CP-VIOLATION; PERTURBATIVE CORRECTIONS; 4-FERMION OPERATORS; CHIRAL SYMMETRY; WILSON FERMIONS AB An upgraded analysis of epsilon, X(d) and epsilon'/epsilon, using the latest determinations of the relevant experimental and theoretical parameters, is presented. Using the recent determination of the top quark mass, m(t) = (174 +/- 17) GeV, our best estimate is epsilon'/epsilon = (3.1 +/- 2.5)x 10(-4), which lies in the range given by E731. We describe our determination of epsilon'/epsilon and make a comparison with other similar studies. A detailed discussion of the matching of the full theory to the effective Hamiltonian, written in terms of lattice operators, is also given. C1 UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY. IST NAZL FIS NUCL, SEZ ROMA, I-00185 ROME, ITALY. CERN, DIV THEORY, CH-1211 GENEVA 23, SWITZERLAND. BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY 11973 USA. UNIV ROMA TOR VERGATA, DIPARTIMENTO FIS, I-00133 ROME, ITALY. IST NAZL FIS NUCL, SEZ ROMA 2, I-00133 ROME, ITALY. RP IST NAZL FIS NUCL, SEZ SANITA, VLE REGINA ELENA, I-00161 ROME, ITALY. NR 72 TC 130 Z9 130 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 USA SN 0170-9739 J9 Z PHYS C PART FIELDS JI Z. Phys. C-Part. Fields PD SEP PY 1995 VL 68 IS 2 BP 239 EP 255 DI 10.1007/BF01566672 PG 17 WC Physics, Particles & Fields SC Physics GA RY368 UT WOS:A1995RY36800006 ER PT J AU ABDALLAH, J COLLINS, LA CSANAK, G PETSCHEK, AG SCHAPPERT, GT AF ABDALLAH, J COLLINS, LA CSANAK, G PETSCHEK, AG SCHAPPERT, GT TI 2-PHOTON IONIZATION OF AN INNER-SHELL ELECTRON OF THE CL ATOM SO ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS LA English DT Article ID RAY AB We have calculated, using second order perturbation theory, the two photon ionization cross section of a K-shell electron of chlorine for E = 1.6 keV incident photons. Two classes of intermediate states must be considered, those in which a Is electron moves to an empty p-orbital, and those in which an electron from an occupied p-orbital moves into the continuum. The first class of intermediate states is followed by the ejection of a p-electron into the continuum. The second class of intermediate states is followed by the transfer of a Is electron into an empty p-state. The largest contribution comes from 3p --> d-continuum followed by Is --> 3p transition. Our result is sigma((2))/I = 2.06 x 10(41) cm(4)/W where sigma((2)) is the two photon ionization cross-section and I is the light intensity. RP ABDALLAH, J (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. NR 29 TC 5 Z9 5 U1 1 U2 2 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0178-7683 J9 Z PHYS D ATOM MOL CL JI Z. Phys. D-Atoms Mol. Clusters PD SEP PY 1995 VL 34 IS 4 BP 233 EP 239 PG 7 WC Physics, Atomic, Molecular & Chemical SC Physics GA RY370 UT WOS:A1995RY37000004 ER PT J AU ALDUINO, AC ORTIZ, GG HAINS, C LU, B LU, YC CHENG, J SCHNEIDER, RP KLEM, J ZOLPER, JC AF ALDUINO, AC ORTIZ, GG HAINS, C LU, B LU, YC CHENG, J SCHNEIDER, RP KLEM, J ZOLPER, JC TI 500MBIT/S OPERATION OF A MULTIFUNCTIONAL BINARY OPTICAL SWITCHING FABRIC SO ELECTRONICS LETTERS LA English DT Article DE OPTICAL SWITCHES; INTEGRATED OPTOELECTRONICS; HETEROJUNCTION BIPOLAR TRANSISTORS; PIN PHOTODIODES; VERTICAL CAVITY SURFACE EMITTING LASERS ID SURFACE-EMITTING LASER; INTEGRATION; TRANSISTOR AB A cascadable binary optical routing switch with improved switching performance has been demonstrated by integrating vertical-cavity surface-emitting lasers with heterojunction bipolar transistors and pin photodiodes. The reconfigurable routing of optical signals, and their conversion between electrical and optical formats, have been achieved at high speed (400-500Mbit/s), and with an optical gain of 7.5dB. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RP ALDUINO, AC (reprint author), UNIV NEW MEXICO,CTR HIGH TECHNOL MAT,ALBUQUERQUE,NM 87185, USA. NR 5 TC 6 Z9 6 U1 0 U2 2 PU IEE-INST ELEC ENG PI HERTS PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTS, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD AUG 31 PY 1995 VL 31 IS 18 BP 1570 EP 1571 DI 10.1049/el:19951076 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA RV301 UT WOS:A1995RV30100032 ER PT J AU HUETT, T INGRAM, JC DELMORE, JE AF HUETT, T INGRAM, JC DELMORE, JE TI ION-EMITTING MOLTEN GLASSES - SILICA-GEL REVISITED SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE ION EMITTER; ION IMAGING; MOLTEN GLASS; SILICA GEL; SURFACE (THERMAL) IONIZATION AB A Bi+ ion emitter has been developed and studied which is modeled on the silica gel matrices that have been used to produce ions from a variety of elements such as Pb, Ag and Te for isotope ratio measurements. Studies with this model system demonstrate that this ion emitter is a liquid glass and that ion emission originates from the surface of the liquid glass. The large difference in ion emission observed with the use of different refractory metal filaments to support this silica gel type matrix is shown to be due to the extent to which the refractory metal is dissolved by the liquid glass, altering the properties of the glass, which in turn alters the ion emission properties. It is not due to the variation in work function of the refractory metal support filaments, as had been suspected. Additional types of study will have to be conducted in order to understand the mechanism of ion emission from the surfaces of these molten glasses. C1 IDAHO NATL ENGN LAB,IDAHO FALLS,ID 83415. NR 14 TC 5 Z9 5 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 5 EP 14 DI 10.1016/0168-1176(95)04184-M PG 10 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600008 ER PT J AU DELMORE, JE APPELHANS, AD PETERSON, ES AF DELMORE, JE APPELHANS, AD PETERSON, ES TI A RARE-EARTH-OXIDE MATRIX FOR EMITTING PERRHENATE ANIONS SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE ANIONS; CERAMIC; PERRHENATE; SIMS GUN; SURFACE IONIZATION ID IONIZATION MASS-SPECTROMETRY; NEGATIVE THERMAL IONIZATION; ISOTOPE RATIO DETERMINATIONS; SURFACE-IONIZATION; RHENIUM; OSMIUM AB A novel ceramic-like material has been produced and tested which has the property of emitting perrhenate anions for several thousand hours when heated in vacuum to temperatures between 1073 and 1173 K. Previously reported versions of this material were inferior to the material discussed here, probably owing to loss of perrhenate from reduction within the host matrix. The earlier materials, as well as the present materials, use barium perrhenate, a reasonably refractory compound, in a rare earth oxide matrix. The use of europium and ytterbium oxide as matrices for barium perrhenate improves the perrhenate anion emission properties of these materials by an order of magnitude when compared to the next best group of rare earth oxides. This improvement is credited to the fact that these rare earth oxides (in the +3 oxidation state) have stable +2 states to which they can be reduced, thereby serving as an oxidizing matrix to stabilize perrhenate. This indicates that europium and ytterbium +3 oxides can function as high temperature oxidizing matrices for chemical species which need to be maintained in an oxidized form. RP DELMORE, JE (reprint author), IDAHO NATL ENGN LAB,BOX 1625,IDAHO FALLS,ID 83415, USA. RI Peterson, Eric/B-9127-2017 OI Peterson, Eric/0000-0002-2292-4939 NR 17 TC 42 Z9 42 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 15 EP 20 DI 10.1016/0168-1176(95)04186-O PG 6 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600009 ER PT J AU POTHS, J CHAMBERLIN, EP AF POTHS, J CHAMBERLIN, EP TI A HIGH-EFFICIENCY ION-SOURCE FOR KR AND XE ISOTOPIC MEASUREMENTS SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE IONIZATION EFFICIENCY; ION SOURCE; ISOTOPES; KRYPTON; MICROWAVE; XENON AB We report tests performed on a microwave plasma ion source to determine its suitability for high sensitivity Kr and Xe isotopic analysis. The source consists of a 1.3 cm o.d. x 15 cm long ceramic discharge tube with excitation provided by a 2.45 GHz lambda/4 cavity. We have developed a technique to generate greater than or equal to 2 x 10(-11) A of Xe ions directly from air, with an ionization efficiency of 2%. Measurements of the isotopic compositions of Kr and Xe in air samples agree with the atmospheric values to within 0.5%. This result implies good ion beam stability and lack of serious isobaric interferences. The memory effect when alternating between Xe samples with extremely different isotopic compositions is at the 1% level. The microwave ion source appears very promising for isotopic analysis. C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 8 TC 5 Z9 5 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 47 EP 54 DI 10.1016/0168-1176(95)04202-V PG 8 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600012 ER PT J AU RICIPUTI, LR DUCKWORTH, DC BARSHICK, CM SMITH, DH AF RICIPUTI, LR DUCKWORTH, DC BARSHICK, CM SMITH, DH TI ISOTOPE RATIO MEASUREMENTS USING GLOW-DISCHARGE MASS-SPECTROMETRY SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE GLOW DISCHARGE MASS SPECTROMETRY; ISOTOPE RATIOS ID INDUCTIVELY-COUPLED PLASMA AB Glow discharge mass spectrometry (GDMS) has been evaluated for its ability to measure isotope ratios in solids. Isotope ratios were measured for B, Cu, Sr, Ag, Sb, Re and Pb in concentrations ranging from 15 ppm to pure metal. External precision of better than 0.03% has been achieved for isotope ratios measured using pure solid elemental samples; typical precision is better than 0.1% for elements present in concentrations greater than 0.5 wt.%. For elements present in concentrations of 10-20 ppm, precision was about 1%. Isotopic bias was < 1%, and day-to-day variations in isotopic bias for a single element are as large as variations in isotopic bias between different elements, suggesting that most isotopic bias is dominated by instrumental parameters. Values of isotope ratios show a dependence on the pressure of the Ar discharge gas, suggesting that improvements in sample geometry and discharge stability have the potential to allow GDMS to achieve even better precision in the measurement of isotope ratios. C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. RI Duckworth, Douglas/B-7171-2015 OI Duckworth, Douglas/0000-0002-8161-5685 NR 8 TC 21 Z9 22 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 55 EP 64 DI 10.1016/0168-1176(95)04203-W PG 10 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600013 ER PT J AU GOODNER, KL EYLER, JR BARSHICK, CM SMITH, DH AF GOODNER, KL EYLER, JR BARSHICK, CM SMITH, DH TI ELEMENTAL QUANTIFICATION BASED ON ARGIDES, DIMERS, AND DOUBLY-CHARGED GLOW-DISCHARGE IONS SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE ARGIDES; DIMERS; DOUBLY CHARGED METAL IONS; ELEMENTAL QUANTIFICATION; GLOW DISCHARGE MASS SPECTROMETRY ID MASS-SPECTROMETRY; QUADRUPOLE AB Argides, dimers, and doubly charged metal ions were investigated as possible species to use for elemental quantification in glow discharge mass spectrometry. These species showed a behavior similar to that of the metal ion when discharge power was varied, and similar to that of the metal atom when discharge pressure was varied. Quantification of several National Institute of Standards and Technology (NIST) standard reference samples was shown to be feasible using species with concentrations as low as a few parts per million in the gas phase. These species provided good quantification (better than 15% in most cases) for elements with concentrations of 0.1%, and above, in the sample. The practical utility of this analytical scheme was evaluated by analyzing a standard as an unknown surrogate. Relative errors of approximately 50% for the M(+) analyte, due to a plethora of polyatomic interferences, were reduced to errors of approximately 15% when the MAr(+), M(2)(+) and M(2+) were used for quantification. C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611. NR 26 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 65 EP 73 DI 10.1016/0168-1176(95)04204-X PG 9 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600014 ER PT J AU EFURD, DW ROKOP, DJ AGUILAR, RD ROENSCH, FR BANAR, JC PERRIN, RE AF EFURD, DW ROKOP, DJ AGUILAR, RD ROENSCH, FR BANAR, JC PERRIN, RE TI IDENTIFICATION AND QUANTIFICATION OF THE SOURCE TERMS FOR URANIUM IN SURFACE WATERS COLLECTED AT THE ROCKY-FLATS FACILITY SO INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES LA English DT Article; Proceedings Paper CT 2nd A O Nier Symposium on Inorganic Mass Spectrometry CY MAY 10-12, 1994 CL DURANGO, CO DE SURFACE WATERS; THERMAL IONIZATION MASS SPECTROMETRY; URANIUM AB The intent of this study was to determine the fraction of soluble uranium attributable to the Rocky Flats Plant (RFP) operations which is recoverable from waters and suspended sediments drawn from ponds on site at RFP. Samples were collected from late 1992 through 1993. Thermal ionization mass spectrometry (TIMS) measurement techniques indicate that the water samples contain both naturally occurring uranium and depleted uranium. The uranium concentrations in the waters collected from the terminal ponds contained 0.5% or less of the interim standard calculated derived concentration guide for uranium in waters available to the public. RP EFURD, DW (reprint author), LOS ALAMOS NATL LAB,DIV CST,MS J514,LOS ALAMOS,NM 87545, USA. NR 9 TC 4 Z9 4 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-1176 J9 INT J MASS SPECTROM JI Int. J. Mass Spectom. Ion Process. PD AUG 31 PY 1995 VL 146 BP 109 EP 117 DI 10.1016/0168-1176(95)04207-2 PG 9 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA TA486 UT WOS:A1995TA48600018 ER PT J AU PITZER, KS AF PITZER, KS TI IONIC FLUIDS - NEAR-CRITICAL AND RELATED PROPERTIES SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID RESTRICTED PRIMITIVE MODEL; ALKALI-HALIDE SYSTEMS; CRITICAL-POINT; COEXISTENCE CURVE; CRITICAL-BEHAVIOR; PHASE-SEPARATION; CRITICAL REGION; CRITICAL-TEMPERATURE; PERTURBATION-THEORY; CRITICAL EXPONENT AB Precision measurements of the near-critical properties of ionic fluids have been reported recently; they show marked differences from the corresponding properties of nonionic fluids. These very interesting results are summarized and interpreted in terms of theoretical critical exponents and possible crossovers between exponents. Recent calculations for NaCl and the restricted primitive model for near-critical properties and for cluster formation in the vapor are also considered. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. RP PITZER, KS (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 49 TC 75 Z9 75 U1 0 U2 7 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 31 PY 1995 VL 99 IS 35 BP 13070 EP 13077 DI 10.1021/j100035a006 PG 8 WC Chemistry, Physical SC Chemistry GA RR846 UT WOS:A1995RR84600006 ER PT J AU SMALLEY, JF FELDBERG, SW CHIDSEY, CED LINFORD, MR NEWTON, MD LIU, YP AF SMALLEY, JF FELDBERG, SW CHIDSEY, CED LINFORD, MR NEWTON, MD LIU, YP TI THE KINETICS OF ELECTRON-TRANSFER THROUGH FERROCENE-TERMINATED ALKANETHIOL MONOLAYERS ON GOLD SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID OMEGA-HYDROXY THIOL; SELF-ASSEMBLED MONOLAYERS; COATED ELECTRODES; DISTANCE DEPENDENCE; FREE-ENERGY; ELECTROCHEMISTRY; ABINITIO; BEHAVIOR; COUPLES; BRIDGES AB The kinetics of electron transfer between a substrate gold electrode and a self-assembled monolayer formed from CH3(CH2)(n-1)SH and (eta(5)-C5H5)Fe(eta(5)-C5H4)CO2(CH2)(n)SH were studied as a function of n, the number of methylenes in the alkyl chain tethering the ferrocene moiety to the electrode, using the indirect laser-induced temperature jump method (ILIT). For 5 less than or equal to n less than or equal to 9 the standard electron-transfer rate constants vary according to k(Gamma,s,n=0) exp[-beta(n)n] where k(Gamma,s,n=0) is the (extrapolated) rate constant for the electron transfer at n = 0. At T = 25 degrees C, k(Gamma,s,n=0) similar or equal to 6 x 10(8) s(-1) and beta(n) = 1.21 +/- 0.05. The ILIT method allows rates to be measured that are too fast to be,measured by conventional chronoamperometry at a macroelectrode, which is limited to rate constants of less than or similar to 10(4) s(-1). Using a Marcus formalism, the reorganization energy, lambda, for the electron-transfer process at a given n was determined from the slope of an Arrhenius plot over the temperature range 15-55 degrees C. Values of lambda determined from Arrhenius slopes for n = 8 and 9 using ILIT are in reasonable agreement with the value of lambda previously deduced from the potential dependence of the rate constant for n = 16. For n less than or equal to 8 the ILIT data show a decrease in the value of lambda as n decreases; the decrease is too large to be explained by image charge interactions. The data also suggest that \V-n\, the n-dependent electronic coupling term, does not increase as rapidly as expected with decreasing n for n < 8. C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. STANFORD UNIV,DEPT CHEM,STANFORD,CA 94305. RP SMALLEY, JF (reprint author), BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973, USA. NR 46 TC 451 Z9 452 U1 16 U2 141 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 31 PY 1995 VL 99 IS 35 BP 13141 EP 13149 DI 10.1021/j100035a016 PG 9 WC Chemistry, Physical SC Chemistry GA RR846 UT WOS:A1995RR84600016 ER PT J AU WESTON, RE AF WESTON, RE TI ELECTRON-CAPTURE BY SF6 AND SUBSEQUENT DISSOCIATION - A CHEMICAL ACTIVATION MECHANISM SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID SULFUR-HEXAFLUORIDE; ATTACHMENT; KINETICS AB The electron attachment to SF6 and subsequent fragmentation of the SF6- ion to form SF5- is discussed in terms of a chemical activation mechanism resulting from the formation of the ion with an energy similar to 1 eV above the thermal energy distribution. Rate constants for electron detachment and fragmentation as a function of energy are calculated using RRKM theory. A suitable choice of rate constants leads to values of the SF5-/SF6- ion ratio that are in reasonable agreement with flowing afterglow experiments carried out at similar to 1 Torr. RP WESTON, RE (reprint author), BROOKHAVEN NATL LAB,DEPT CHEM,POB 5000,UPTON,NY 11973, USA. NR 25 TC 8 Z9 8 U1 1 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 31 PY 1995 VL 99 IS 35 BP 13150 EP 13155 DI 10.1021/j100035a017 PG 6 WC Chemistry, Physical SC Chemistry GA RR846 UT WOS:A1995RR84600017 ER PT J AU MCDERMOTT, CA MCDERMOTT, MT GREEN, JB PORTER, MD AF MCDERMOTT, CA MCDERMOTT, MT GREEN, JB PORTER, MD TI STRUCTURAL ORIGINS OF THE SURFACE DEPRESSIONS AT ALKANETHIOLATE MONOLAYERS ON AU(111) - A SCANNING TUNNELING AND ATOMIC-FORCE MICROSCOPIC INVESTIGATION SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID SELF-ASSEMBLED MONOLAYERS; ENERGY HELIUM DIFFRACTION; ALKYL THIOL MONOLAYERS; TUNNELING-MICROSCOPY; ELECTRON-TRANSFER; ORGANOSULFUR COMPOUNDS; MECHANICAL RELAXATION; N-OCTADECANETHIOL; ORGANIC-SURFACES; GOLD ELECTRODES AB Scanning tunneling (STM) and atomic force (AFM) microscopies have been used to examine structural features of monolayers formed from the spontaneous adsorption of alkanethiols at Au(111) surfaces. In addition to the atomic scale spacings of the adlayer, the depressional features found in both large (50-250 nm) and atomic scale images have been characterized for monolayers formed from several alkyl chain lengths. These depressions, which are more predominant at monolayers from long chain alkanethiols, appear as 2-4 nm diameter, 0.24 nm deep depressions in STM images and as 2-5 nm diameter, low frictional features in lateral force images. The lateral force images of these depressions, along with an explanation of the imaging mechanism, are presented for the first time. Atomic scale STM images reveal the presence of the adlayer lattice within the depressions. In addition, atomic scale images show that these depressions occur along visible domain boundaries. Together, our results indicate that these depressions originate in the topmost layer of the Au(111) surface and are not a consequence of structural inhomogeneities in the monolayer or of imaging artifacts. Based on these findings, a mechanism for the origin of the depressions is proposed. C1 US DOE,AMES LAB,DEPT CHEM,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,CTR MICROANALYT INSTRUMENTAT,AMES,IA 50011. OI McDermott, Mark/0000-0001-8372-0158 NR 77 TC 119 Z9 120 U1 0 U2 15 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 31 PY 1995 VL 99 IS 35 BP 13257 EP 13267 DI 10.1021/j100035a033 PG 11 WC Chemistry, Physical SC Chemistry GA RR846 UT WOS:A1995RR84600033 ER PT J AU KINCAID, C ITO, G GABLE, C AF KINCAID, C ITO, G GABLE, C TI LABORATORY INVESTIGATION OF THE INTERACTION OF OFF-AXIS MANTLE PLUMES AND SPREADING CENTERS SO NATURE LA English DT Article ID PB ISOTOPE EVIDENCE; REYKJANES RIDGE; SOUTH-ATLANTIC; HOTSPOT; DYNAMICS; ICELAND; BASALTS AB MANTLE plumes and mid-ocean ridge spreading centres are the dominant phenomena through which mass and heat are transported from the mantle to the Earth's surface. It now seems that the dispersion of near-ridge plumes beneath the lithosphere is modulated strongly by mid-ocean ridges; in particular, geochemical and geophysical observations have suggested that rising plumes are diverted towards and feed nearby ridges(1-7). Here we confirm the feasibility of this model with laboratory experiments that incorporate the essential physical and fluid dynamic aspects of a plume-ridge upper mantle system. Our results indicate that an off-axis plume may communicate thermally and chemically with a spreading ridge through a narrow, sub-horizontal conduit instead of a broader, radially spreading plume head. A necessary condition for this communication Is the presence of a lithospheric or theological boundary layer that thickens away from the ridge axis owing to conductive cooling. Interestingly, we find that for high plume temperatures, increasing the plume thermal buoyancy may inhibit rather than enhance plume-ridge interaction, as a result of increased erosion of the overlying lithosphere. C1 WOODS HOLE OCEANOG INST,MIT WHOI JOINT PROGRAM OCEANOG,WOODS HOLE,MA 02543. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. RP KINCAID, C (reprint author), UNIV RHODE ISL,GRAD SCH OCEANOG,NARRAGANSETT,RI 02882, USA. RI Gable, Carl/B-4689-2011; OI Gable, Carl/0000-0001-7063-0815 NR 22 TC 47 Z9 50 U1 2 U2 7 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD AUG 31 PY 1995 VL 376 IS 6543 BP 758 EP 761 DI 10.1038/376758a0 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RR836 UT WOS:A1995RR83600035 ER PT J AU KAEDING, TA AF KAEDING, TA TI D-MESON MIXING IN BROKEN SU(3) SO PHYSICS LETTERS B LA English DT Article ID EFFECTIVE-FIELD-THEORY; CP VIOLATION; DECAY; MASS AB A fit of amplitudes to the experimental branching ratios to two mesons is used to construct a new estimate of neutral D mixing which includes SU(3) breaking. The result is dominated by the experimental uncertainties. This suggests that the charm sector may not be as sensitive to new physics as previously thought and that long-distance calculations may not be useful. RP KAEDING, TA (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,THEORET PHYS GRP,BERKELEY,CA 94720, USA. NR 17 TC 24 Z9 24 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 AUG 31 PY 1995 VL 357 IS 1-2 BP 151 EP 155 DI 10.1016/0370-2693(95)00894-Q PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT334 UT WOS:A1995RT33400024 ER PT J AU ANSELMANN, P HAMPEL, W HEUSSER, G KIKO, J KIRSTEN, T LAUBENSTEIN, M PERNICKA, E PEZZONI, S RONN, U SANN, M SCHLOSSER, C WINK, R WOJCIK, M VONAMMON, R EBERT, KH FRITSCH, T HEIDT, D HENRICH, E STIEGLITZ, L WEIRICH, F BALATA, M LALLA, H BELLOTTI, E CATTADORI, C CREMONESI, O FERRARI, N FIORINI, E ZANOTTI, L ALTMANN, M VONFEILITZSCH, F MOSSBAUER, R SCHANDA, U BERTHOMIEU, G SCHATZMAN, E CARMI, I DOSTROVSKY, I BACCI, C BELLI, P BERNABEI, R DANGELO, S PAOLUZI, L BEVILACQUA, A CHARBIT, S CRIBIER, M GOSSET, L RICH, J SPIRO, M STOLARCZYK, T TAO, C VIGNAUD, D BOGER, J HAHN, RL HARTMANN, FX ROWLEY, JK STOENNER, RW WENESER, J AF ANSELMANN, P HAMPEL, W HEUSSER, G KIKO, J KIRSTEN, T LAUBENSTEIN, M PERNICKA, E PEZZONI, S RONN, U SANN, M SCHLOSSER, C WINK, R WOJCIK, M VONAMMON, R EBERT, KH FRITSCH, T HEIDT, D HENRICH, E STIEGLITZ, L WEIRICH, F BALATA, M LALLA, H BELLOTTI, E CATTADORI, C CREMONESI, O FERRARI, N FIORINI, E ZANOTTI, L ALTMANN, M VONFEILITZSCH, F MOSSBAUER, R SCHANDA, U BERTHOMIEU, G SCHATZMAN, E CARMI, I DOSTROVSKY, I BACCI, C BELLI, P BERNABEI, R DANGELO, S PAOLUZI, L BEVILACQUA, A CHARBIT, S CRIBIER, M GOSSET, L RICH, J SPIRO, M STOLARCZYK, T TAO, C VIGNAUD, D BOGER, J HAHN, RL HARTMANN, FX ROWLEY, JK STOENNER, RW WENESER, J TI GALLEX SOLAR-NEUTRINO OBSERVATIONS - COMPLETE RESULTS FOR GALLEX-II SO PHYSICS LETTERS B LA English DT Article ID DETECTOR; PHYSICS; TIME AB We report the solar neutrino results from the complete set of runs in the exposure period, GALLEX II, from 19 August 1992 - 23 June 1994. Counting for these runs was completed on 10 December 1994. The GALLEX II result (24 runs) is [75.2+/-9.7 (stat)(-4.6)(+4.1) (syst)] SNU (1 sigma). After three years of recording the solar neutrino flux with the GALLEX detector, the combined result from the 39 completed solar runs (GALLEX I+II) is [77.1+/-8.5 (stat)(-5.4)(+4.4) (syst)] SNU (1 sigma) or 77.1(-10.1)(+9.6) SNU with errors combined in quadrature. The combined error (+/-13%) has now approached a level where the limits on the derived contribution of Be-7 neutrinos to the GALLEX signal confront the predictions of solar models. C1 KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH, INST CHEM TECH, D-76021 KARLSRUHE, GERMANY. IST NAZL FIS NUCL, LAB NAZL GRAN SASSO, I-67100 LAQUILA, ITALY. UNIV MILAN, DIPARTIMENTO FIS, I-20133 MILAN, ITALY. IST NAZL FIS NUCL, SEZ MILANO, I-20133 MILAN, ITALY. TECH UNIV MUNICH, DEPT PHYS E15, D-85748 GARCHING, GERMANY. OBSERV COTE AZUR, DEPT CASSINI, F-06004 NICE 4, FRANCE. UNIV ROMA TOR VERGATA, DIPARTIMENTO FIS, I-00133 ROME, ITALY. IST NAZL FIS NUCL, I-00133 ROME, ITALY. CE SACLAY, DAPNIA, CEA, F-91191 GIF SUR YVETTE, FRANCE. BROOKHAVEN NATL LAB, UPTON, NY 11973 USA. RP MAX PLANCK INST KERNPHYS, POSTFACH 103980, D-69029 HEIDELBERG, GERMANY. RI Belli, Pierluigi/H-1942-2012; Laubenstein, Matthias/C-4851-2013; Bernabei, Rita/C-1212-2016; OI Belli, Pierluigi/0000-0003-4517-4891; Laubenstein, Matthias/0000-0001-5390-4343; Bernabei, Rita/0000-0003-1786-5396; cattadori, carla maria/0000-0001-7885-6253 NR 30 TC 188 Z9 189 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 31 PY 1995 VL 357 IS 1-2 BP 237 EP 247 DI 10.1016/0370-2693(95)00897-T PG 11 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RT334 UT WOS:A1995RT33400037 ER PT J AU ADAMS, D ADEVA, B ARIK, E ARVIDSON, A BADELEK, B BALLINTIJN, MK BARDIN, G BAUM, G BERGLUND, P BETEV, L BIRSA, R BJORKHOLM, P BONNER, BE DEBOTTON, N BRADAMANTE, F BRESSAN, A BULTMANN, S BURTIN, E CAVATA, C CLOCCHIATTI, M CRABB, D CRANSHAW, J CUHADAR, T DALLATORRE, S VANDANTZIG, R DESHPANDE, A DHAWAN, S DULYA, C DYRING, A EICHBLATT, S FASCHING, D FEINSTEIN, F FERNANDEZ, C FROIS, B GARZON, JA GIORGI, M VONGOELER, E GRACIA, G DECASSAGNAC, RG DEGROOT, N PERDEKAMP, MG GULMEZ, E VONHARRACH, D HASEGAWA, T HAUTLE, P HAYASHI, N HEUSCH, CA HORIKAWA, N HUGHES, VW IGO, G ISHIMOTO, S IWATA, T KABUSS, EM KAGEYA, T KAREV, A KESSLER, HJ KETEL, TJ KISHI, A KISSELEV, Y KLOSTERMANN, L KRAMER, D KRIVOKHIJINE, V KROGER, W KUREK, K KYYNARAINEN, J LAMANNA, M LANDGRAF, U LEGOFF, JM LEHAR, F DELESQUEN, A LICHTENSTADT, J LITMAATH, M LOPEZPONTE, S LOWE, M MAGNON, A MALLOT, GK MARIE, F MARTIN, A MARTINO, J MATSUDA, T MAYES, B MCCARTHY, JS MEDVED, K VANMIDDELKOOP, G MILLER, D MORI, K MOROMISATO, J NAGAITSEV, A NASSALSKI, J NAUMANN, L NIINIKOSKI, TO OBERSKI, JEJ OGAWA, A OZBEN, C PENZO, A PEREZ, C PERROTKUNNE, F PESHEKHONOV, D PIEGAIA, R PINSKY, L PLATCHKOV, S PLO, M POSE, D POSTMA, H PRETZ, J PUSSIEUX, T PYRLIK, J REYHANCAN, I RIJLLART, A ROBERTS, JB ROCK, S RODRIGUEZ, M RONDIO, E SABO, I SABORIDO, J SANDACZ, A SAVIN, I SCHIAVON, P SEGEL, R SEITZ, R SEMERTZIDIS, Y SHANAHAN, P SICHTERMANN, EP SMIRNOV, GI STAUDE, A STEINMETZ, A STIEGLER, U STUHRMANN, H SZLEPER, M TESSAROTTO, F VELASCO, M VOGT, J VOSS, R WEINSTEIN, R WHITTEN, C WINDMOLDERS, R WILLUMEIT, R WISLICKI, W WITZMANN, A ZANETTI, AM ZHAO, J AF ADAMS, D ADEVA, B ARIK, E ARVIDSON, A BADELEK, B BALLINTIJN, MK BARDIN, G BAUM, G BERGLUND, P BETEV, L BIRSA, R BJORKHOLM, P BONNER, BE DEBOTTON, N BRADAMANTE, F BRESSAN, A BULTMANN, S BURTIN, E CAVATA, C CLOCCHIATTI, M CRABB, D CRANSHAW, J CUHADAR, T DALLATORRE, S VANDANTZIG, R DESHPANDE, A DHAWAN, S DULYA, C DYRING, A EICHBLATT, S FASCHING, D FEINSTEIN, F FERNANDEZ, C FROIS, B GARZON, JA GIORGI, M VONGOELER, E GRACIA, G DECASSAGNAC, RG DEGROOT, N PERDEKAMP, MG GULMEZ, E VONHARRACH, D HASEGAWA, T HAUTLE, P HAYASHI, N HEUSCH, CA HORIKAWA, N HUGHES, VW IGO, G ISHIMOTO, S IWATA, T KABUSS, EM KAGEYA, T KAREV, A KESSLER, HJ KETEL, TJ KISHI, A KISSELEV, Y KLOSTERMANN, L KRAMER, D KRIVOKHIJINE, V KROGER, W KUREK, K KYYNARAINEN, J LAMANNA, M LANDGRAF, U LEGOFF, JM LEHAR, F DELESQUEN, A LICHTENSTADT, J LITMAATH, M LOPEZPONTE, S LOWE, M MAGNON, A MALLOT, GK MARIE, F MARTIN, A MARTINO, J MATSUDA, T MAYES, B MCCARTHY, JS MEDVED, K VANMIDDELKOOP, G MILLER, D MORI, K MOROMISATO, J NAGAITSEV, A NASSALSKI, J NAUMANN, L NIINIKOSKI, TO OBERSKI, JEJ OGAWA, A OZBEN, C PENZO, A PEREZ, C PERROTKUNNE, F PESHEKHONOV, D PIEGAIA, R PINSKY, L PLATCHKOV, S PLO, M POSE, D POSTMA, H PRETZ, J PUSSIEUX, T PYRLIK, J REYHANCAN, I RIJLLART, A ROBERTS, JB ROCK, S RODRIGUEZ, M RONDIO, E SABO, I SABORIDO, J SANDACZ, A SAVIN, I SCHIAVON, P SEGEL, R SEITZ, R SEMERTZIDIS, Y SHANAHAN, P SICHTERMANN, EP SMIRNOV, GI STAUDE, A STEINMETZ, A STIEGLER, U STUHRMANN, H SZLEPER, M TESSAROTTO, F VELASCO, M VOGT, J VOSS, R WEINSTEIN, R WHITTEN, C WINDMOLDERS, R WILLUMEIT, R WISLICKI, W WITZMANN, A ZANETTI, AM ZHAO, J TI A NEW MEASUREMENT OF THE SPIN-DEPENDENT STRUCTURE-FUNCTION G(1)(X) OF THE DEUTERON SO PHYSICS LETTERS B LA English DT Article ID INELASTIC MUON SCATTERING; SUM-RULE; NUCLEON; ELECTROPRODUCTION; EXCHANGE; PROTON AB We present a new measurement of the spin-dependent structure function g(1)(d) of the deuteron in deep inelastic scattering of 190 GeV polarised muons on polarised deuterons, in the kinematic range 0.003 temporal insula, cingulate > orbitofrontal, frontal and occipital cortices. A similar ranking order for DAT availability was obtained with [C-ll]cocaine. Specific binding (B-max'/K-d') of [C-ll]cocaine in thalamus was 25-33% that of basal ganglia and [C-ll]d-threo-methylphenidate in thalamus was 11-13% that of basal ganglia. The regional measures with [C-ll]cocaine were significantly correlated with those of [C-ll]d-threo-methylphenidate (p less than or equal to 0.0001). These results document extrastriatal binding in human brain with two different DAT ligands. C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. SUNY STONY BROOK,DEPT RADIOL,STONY BROOK,NY 11794. SUNY STONY BROOK,DEPT PSYCHIAT,STONY BROOK,NY 11794. RP WANG, GJ (reprint author), BROOKHAVEN NATL LAB,DEPT MED,UPTON,NY 11973, USA. NR 20 TC 24 Z9 24 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0024-3205 J9 LIFE SCI JI Life Sci. PD AUG 25 PY 1995 VL 57 IS 14 BP PL187 EP PL191 PG 5 WC Medicine, Research & Experimental; Pharmacology & Pharmacy SC Research & Experimental Medicine; Pharmacology & Pharmacy GA RQ790 UT WOS:A1995RQ79000011 ER PT J AU MONTEIRO, RDC WRIGHT, SJ AF MONTEIRO, RDC WRIGHT, SJ TI SUPERLINEAR PRIMAL-DUAL AFFINE SCALING ALGORITHMS FOR LCP SO MATHEMATICAL PROGRAMMING LA English DT Article DE INTERIOR-POINT METHODS; PRIMAL-DUAL AFFINE SCALING; LINEAR PROGRAMMING; LINEAR COMPLEMENTARITY ID COMPLEMENTARITY-PROBLEMS; QUADRATIC CONVERGENCE AB We describe an interior-point algorithm for monotone linear complementarity problems in which primal-dual affine scaling is used to generate the search directions. The algorithm is shown to have global and superlinear convergence with Q-order up to (but not including) two. The technique is shown to be consistent with a potential-reduction algorithm, yielding the first potential-reduction algorithm that is both globally and superlinearly convergent. C1 ARGONNE NATL LAB,DIV MATH & COMP SCI,ARGONNE,IL 60439. GEORGIA INST TECHNOL,SCH IND & SYST ENGN,ATLANTA,GA 30332. NR 23 TC 13 Z9 14 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0025-5610 J9 MATH PROGRAM JI Math. Program. PD AUG 25 PY 1995 VL 69 IS 2 BP 311 EP 333 DI 10.1007/BF01585562 PG 23 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA RU963 UT WOS:A1995RU96300004 ER PT J AU BIELICKI, JK FORTE, TM MCCALL, MR AF BIELICKI, JK FORTE, TM MCCALL, MR TI GAS-PHASE CIGARETTE-SMOKE INHIBITS PLASMA LECITHIN-CHOLESTEROL ACYLTRANSFERASE ACTIVITY BY MODIFICATION OF THE ENZYMES FREE THIOLS SO BIOCHIMICA ET BIOPHYSICA ACTA-LIPIDS AND LIPID METABOLISM LA English DT Article DE REVERSE CHOLESTEROL TRANSPORT; GAS-PHASE CIGARETTE SMOKE; LECITHIN-CHOLESTEROL ACYLTRANSFERASE ID HIGH-DENSITY-LIPOPROTEIN; APOLIPOPROTEIN-A-I; SITE-DIRECTED MUTAGENESIS; LIPID-PEROXIDATION; METABOLISM; DISEASE; MACROPHAGES; PROTEINS; ACID AB Cigarette smoking is associated with an increased risk of premature atherosclerosis. The underlying mechanisms responsible for this association are unknown. Recent work from this laboratory has shown that ex vivo exposure of plasma to gas-phase cigarette smoke (CS) produces a rapid inhibition of lecithin-cholesterol acyltransferase (LCAT) activity and crosslinking of HDL-apolipoproteins. The goal of the present study was to investigate the mechanism(s) by which CS inhibited LCAT and modified HDL. When dialyzed human plasma (12 ml) was exposed to the gas-phase of an equivalent of 1/8 of a cigarette (one 'puff) at 15 min intervals for 3 h, LCAT activity was reduced by 76 +/- 1% compared to controls; supplementation of plasma with glutathione produced a dose-dependent protection of LCAT activity where at the highest concentration (1 mM) 78% protection was observed. A similar protection was obtained with N-acetyl cysteine (1 mM). In addition to LCAT inhibition, HDL-apolipoproteins were crosslinked after 3 h exposure of plasma to CS; crosslinking was reduced by the addition of either glutathione or N-acetyl cysteine to plasma. The amino compounds N-acetyl lysine, N-acetyl arginine, and aminoguanidine failed to protect LCAT and HDL indicating a specificity with regard to the ability of free thiols to buffer the deleterious components of CS which inhibited LCAT and crosslinked HDL-apolipoproteins. Since LCAT contains two free cysteine residues (Cys-31 and -184) near the active site of the enzyme, we tested whether pretreatment of plasma with the reversible sulfhydryl modifying compound, 5,5'-dithiobis-2-nitrobenzoic acid (DTNB), could protect LCAT from CS-induced inhibition. Plasma pretreated with DTNB prior to CS exposure retained an additional 50% of LCAT activity compared to CS treatment in the absence of DTNB. These results indicate that covalent modification of free cysteine residues of LCAT was, in part, responsible for the inhibition of plasma LCAT activity by CS. RP BIELICKI, JK (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DEPT MOLEC & NUCL MED,DIV LIFE SCI,BERKELEY,CA 94720, USA. FU NHLBI NIH HHS [HL07279, HL18574] NR 31 TC 13 Z9 13 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0005-2760 J9 BBA-LIPID LIPID MET JI Biochim. Biophys. Acta-Lipids Lipid Metab. PD AUG 24 PY 1995 VL 1258 IS 1 BP 35 EP 40 DI 10.1016/0005-2760(95)00092-Q PG 6 WC Biochemistry & Molecular Biology; Biophysics SC Biochemistry & Molecular Biology; Biophysics GA RT044 UT WOS:A1995RT04400005 PM 7654778 ER PT J AU HUNTLEY, DR AF HUNTLEY, DR TI RELATIONSHIP OF BOND STRENGTHS TO SELECTIVITY IN HETEROGENEOUS SURFACE-REACTIONS - MERCAPTOETHANOL AND ETHANEDITHIOL ON NI(110) SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID PREADSORBED OXYGEN; DECOMPOSITION; ADSORPTION; METHANETHIOL; DESORPTION; NI(100); DESULFURIZATION; CHEMISORPTION; METHANOL; THIOLATE AB The reaction selectivities and bonding configurations in mercaptoethanol (HSCH2CH2OH) and ethanedithiol (HSCH2CH2SH) on Ni(110) were determined and found to be correlated to the relative strengths of the C-S and C-O bonds. Mechanistic details of the mercaptoethanol reaction have been elucidated. Mercaptoethanol reacts with Ni(110) to form ethanol, acetaldehyde, methane, CO, and hydrogen. Mercaptoethanol reactivity is dominated by thiolate formation as suggested by the S 2p core level binding energy. Near 200-250 K, the C-S bond cleaves with the evolution of ethanol and formation of surface ethoxide which is easily discernible from vibrational spectroscopy. The ethoxide dehydrogenates to form acetaldehyde, which either desorbs or reacts to form methane and CO. In dramatic contrast, the structurally similar ethanedithiol apparently adsorbs in a bidentate fashion, resulting in a dithiolate which selectively splits out ethylene and produces surface sulfur. The difference in the reactivity of ethanedithiol and mercaptoethanol is understood in terms of the inactivity of the Ni(110) surface toward C-O bond scission, which is primarily a reflection of the strength of C-O bonds compared with C-S bonds. RP HUNTLEY, DR (reprint author), OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831, USA. NR 35 TC 2 Z9 2 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 24 PY 1995 VL 99 IS 34 BP 12907 EP 12914 DI 10.1021/j100034a033 PG 8 WC Chemistry, Physical SC Chemistry GA RR250 UT WOS:A1995RR25000033 ER PT J AU FARRAR, CD SOREY, ML EVANS, WC HOWLE, JF KERR, BD KENNEDY, BM KING, CY SOUTHON, JR AF FARRAR, CD SOREY, ML EVANS, WC HOWLE, JF KERR, BD KENNEDY, BM KING, CY SOUTHON, JR TI FOREST-KILLING DIFFUSE CO2 EMISSION AT MAMMOTH MOUNTAIN AS A SIGN OF MAGMATIC UNREST SO NATURE LA English DT Article ID LONG VALLEY CALDERA; CARBON-DIOXIDE; CALIFORNIA; ERUPTIONS; VOLCANO; SOIL AB MAMMOTH Mountain, in the western United States, is a large dacitic volcano with a long history of volcanism that began 200 kyr ago(1) and produced phreatic eruptions as recently as 500+/- 200 yr sp (ref. 2). Seismicity, ground deformation and changes in fumarole gas composition suggested an episode of shallow dyke intrusion in 1989-90 (refs 3, 4), Areas of dying forest and incidents of near asphyxia in confined spaces, first reported in 1990, prompted us to search for diffuse flank emissions of magmatic CO2, as have been described at Mount Etna(5) and Vulcano(6). Here we report the results of a soil-gas survey, begun in 1994, that revealed CO2 concentrations of 30-96% in a 30-hectare region of killed trees, from which we estimate a total CO2 flux of greater than or equal to 1,200 tonnes per day, The forest die-off is the most conspicuous surface manifestation of magmatic processes at Mammoth Mountain, which hosts only weak fumarolic vents and no summit activity, Although the onset of tree kill coincided with the episode of shallow dyke intrusion, the magnitude and duration of the CO2 flux indicates that a larger, deeper magma source and/or a large reservoir of high-pressure gas is being tapped. C1 US GEOL SURVEY,MENLO PK,CA 94025. US GEOL SURVEY,SACRAMENTO,CA 95825. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551. RP FARRAR, CD (reprint author), US GEOL SURVEY,CARNELIAN BAY,CA 96140, USA. RI Evans, William/J-4283-2012 NR 23 TC 194 Z9 198 U1 2 U2 12 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD AUG 24 PY 1995 VL 376 IS 6542 BP 675 EP 678 DI 10.1038/376675a0 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RQ672 UT WOS:A1995RQ67200056 ER PT J AU RAGNARSSON, I ZHANG, JY RIEDINGER, LL AF RAGNARSSON, I ZHANG, JY RIEDINGER, LL TI STATISTICAL-ANALYSIS OF PAIRS OF ROTATIONAL BANDS IN ODD AND EVEN NUCLEI AT NORMAL DEFORMATION SO PHYSICS LETTERS B LA English DT Article ID SPIN IDENTICAL BANDS; SUPERDEFORMED BANDS; QUANTIZED ALIGNMENT AB A statistical analysis has been done for the variation of the moment of inertia in pairs of rotational bands between odd-A and adjacent A - 1 even-even nuclei at normal deformation. A smooth distribution centered at small differences or no difference is obtained but apart from this, no special surplus of so-called identical bands is found. Furthermore, it is found that upsloping orbitals are predominantly involved when forming bands with similar moments of inertia. C1 UNIV TENNESSEE,DEPT PHYS,KNOXVILLE,TN 37996. BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. INST MODERN PHYS,LANZHOU 730000,PEOPLES R CHINA. RP RAGNARSSON, I (reprint author), LUND INST TECHNOL,DEPT MATH PHYS,POB 118,S-22100 LUND,SWEDEN. NR 19 TC 3 Z9 3 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD AUG 24 PY 1995 VL 356 IS 4 BP 423 EP 428 DI 10.1016/0370-2693(95)00859-J PG 6 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RR709 UT WOS:A1995RR70900001 ER PT J AU BRIGNOLE, A FERUGLIO, F ZWIRNER, F AF BRIGNOLE, A FERUGLIO, F ZWIRNER, F TI HIGGS AND SUPER-HIGGS EFFECTS WITH NATURALLY VANISHING CLASSICAL VACUUM ENERGY SO PHYSICS LETTERS B LA English DT Article ID MAXWELL-EINSTEIN SUPERGRAVITY; 4-DIMENSIONAL SUPERSTRINGS; N=4 SUPERGRAVITY; SUPERSYMMETRY BREAKING; JORDAN ALGEBRAS; BROKEN SUPERSYMMETRY; PHASE-TRANSITION; DUALITY; MODELS; POTENTIALS AB We construct N = 1 supergravity models where the gauge symmetry and supersymmetry are both spontaneously broken, with naturally vanishing classical vacuum energy and unsuppressed Goldstino components along gauge non-singlet directions. We discuss some physically interesting situations where such a mechanism could play a role, and identify the breaking of a grand-unified gauge group as the most likely possibility. We show that, even when the gravitino mass is much smaller than the scale m(x) of gauge symmetry breaking, important features can be missed if we first naively integrate out the degrees of freedom of mass O(m(x)), in the limit of unbroken supersymmetry, and then describe the super-Higgs effect in the resulting effective theory. We also comment on possible connections with extended supergravities and realistic four-dimensional string constructions. C1 UNIV PADUA,DIPARTIMENTO FIS,I-35131 PADUA,ITALY. CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND. RP BRIGNOLE, A (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,THEORY GRP,BERKELEY,CA 94720, USA. NR 66 TC 5 Z9 5 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 AUG 24 PY 1995 VL 356 IS 4 BP 500 EP 508 DI 10.1016/0370-2693(95)00882-L PG 9 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RR709 UT WOS:A1995RR70900014 ER PT J AU KNIEHL, BA KRAMER, M KRAMER, G SPIRA, M AF KNIEHL, BA KRAMER, M KRAMER, G SPIRA, M TI CROSS-SECTIONS FOR CHARM PRODUCTION IN EP COLLISIONS - MASSIVE VERSUS MASSLESS SCHEME SO PHYSICS LETTERS B LA English DT Article ID HEAVY-QUARK PRODUCTION; LEADING-ORDER QCD; HARD SCATTERING; PHOTOPRODUCTION; HERA; PHOTON AB The next-to-leading order inclusive cross section for large-pr photoproduction of charm quarks at HERA is calculated in two different approaches. Ln the first approach the charm quarks are treated as massive objects which are strictly external to the proton and the photon while in the second approach the charm mass is neglected and the c quark is assumed to be one of the active flavours in the proton and photon structure functions. We present single-inclusive distributions in transverse momentum and rapidity including direct and resolved photons. The cross section in the massless approach is found to be significantly larger than in the massive scheme. The deviation originates from several contributions which are disentangled. We argue that large-p(perpendicular to) photoproduction of charm quarks at HERA will be sensitive to the charm content of the photon structure function. C1 DESY,D-22603 HAMBURG,GERMANY. UNIV HAMBURG,INST THEORET PHYS 2,D-22761 HAMBURG,GERMANY. MAX PLANCK INST PHYS & ASTROPHYS,D-80805 MUNICH,GERMANY. RP KNIEHL, BA (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. NR 36 TC 41 Z9 41 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 AUG 24 PY 1995 VL 356 IS 4 BP 539 EP 545 DI 10.1016/0370-2693(95)00854-E PG 7 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RR709 UT WOS:A1995RR70900019 ER PT J AU DERRICK, M KRAKAUER, D MAGILL, S MIKUNAS, D MUSGRAVE, B REPOND, J STANEK, R TALAGA, RL ZHANG, H AYAD, R BARI, G BASILE, M BELLAGAMBA, L BOSCHERINI, D BRUNI, A BRUNI, G BRUNI, P ROMEO, GC CASTELLINI, G CHIARINI, M CIFARELLI, L CINDOLO, F CONTIN, A CORRADI, M GIALAS, I GIUSTI, P IACOBUCCI, G LAURENTI, G LEVI, G MARGOTTI, A MASSAM, T NANIA, R NEMOZ, C PALMONARI, F POLINI, A SARTORELLI, G TIMELLINI, R GARCIA, YZ ZICHICHI, A BARGENDE, A CRITTENDEN, J DESCH, K DIEKMANN, B DOEKER, T ECKERT, M FELD, L FREY, A GEERTS, M GROTHE, M HARTMANN, H HEINLOTH, K HILGER, E JAKOB, HP KATZ, UF MARI, SM MENGEL, S MOLLEN, J PAUL, E PFEIFFER, M REMBSER, C SCHRAMM, D STAMM, J WEDEMEYER, R CAMPBELLROBSON, S CASSIDY, A DYCE, N FOSTER, B GEORGE, S GILMORE, R HEATH, GP HEATH, HF LLEWELLYN, TJ MORGADO, CJS NORMAN, DJP OMARA, JA TAPPER, RJ WILSON, SS YOSHIDA, R RAU, RR ARNEODO, M CAPUA, M GARFAGNINI, A IANNOTTI, L SCHIOPPA, M SUSINNO, G BERNSTEIN, A CALDWELL, A CARTIGLIA, N PARSONS, JA RITZ, S SCIULLI, F STRAUB, PB WAI, L YANG, S ZHU, Q BORZEMSKI, P CHWASTOWSKI, J ESKREYS, A PIOTRZKOWSKI, K ZACHARA, M ZAWIEJSKI, L ADAMCZYK, L BEDNAREK, B JELEN, K KISIELEWSKA, D KOWALSKI, T RULIKOWSKAZAREBSKA, E SUSZYCKI, L ZAJAC, J KOTANSKI, A PRZYBYCIEN, M BAUERDICK, LAT BEHRENS, U BEIER, H BIENLEIN, JK COLDEWEY, C DEPPE, O DESLER, K DREWS, G FLASINSKI, M GILKINSON, DJ GLASMAN, C GOTTLICHER, P GROSSEKNETTER, J GUTJAHR, B HAAS, T HAIN, W HASELL, D HESSLING, H IGA, Y JOHNSON, K JOOS, P KASEMANN, M KLANNER, R KOCH, W KOPKE, L KOTZ, U KOWALSKI, H LABS, J LADAGE, A LOHR, B LOWE, M LUKE, D MAINUSCH, J MANCZAK, O MONTEIRO, T NG, JST NICKEL, S NOTZ, D OHRENBERG, K ROCO, M ROHDE, M ROLDAN, J SCHNEEKLOTH, U SCHULZ, W SELONKE, F STILIARIS, E SURROW, B VOSS, T WESTPHAL, D WOLF, G YOUNGMAN, C ZEUNER, W ZHOU, JF GRABOSCH, HJ KHARCHILAVA, A LEICH, A MATTINGLY, MCK MEYER, A SCHLENSTEDT, S WULFF, N BARBAGLI, G PELFER, P ANZIVINO, G MACCARRONE, G DEPASQUALE, S VOTANO, L BAMBERGER, A EISENHARDT, S FREIDHOF, A SOLDNERREMBOLD, S SCHROEDER, J TREFZGER, T BROOK, NH BUSSEY, PJ DOYLE, AT FLECK, JI SAXON, DH UTLEY, ML WILSON, AS DANNEMANN, A HOLM, U HORSTMANN, D NEUMANN, T SINKUS, R WICK, K BADURA, E BUROW, BD HAGGE, L LOHRMANN, E MILEWSKI, J NAKAHATA, M PAVEL, N POELZ, G SCHOTT, W ZETSCHE, F BACON, TC BRUEMMER, N BUTTERWORTH, I GALLO, E HARRIS, VL HUNG, BYH LONG, KR MILLER, DB MORAWITZ, PPO PRINIAS, A SEDGBEER, JK WHITFIELD, AF MALLIK, U MCCLIMENT, E WANG, MZ WANG, SM WU, JT CLOTH, P FILGES, D AN, SH HONG, SM NAM, SW PARK, SK SUH, MH YON, SH IMLAY, R KARTIK, S KIM, HJ MCNEIL, RR METCALF, W NADENDLA, VK BARREIRO, F CASES, G FERNANDEZ, JP GRACIANI, R HERNANDEZ, JM HERVAS, L LABARGA, L MARTINEZ, M DELPESO, J PUGA, J TERRON, J DETROCONIZ, JF SMITH, GR CORRIVEAU, F HANNA, DS HARTMANN, J HUNG, LW LIM, JN MATTHEWS, CG PATEL, PM SINCLAIR, LE STAIRS, DG STLAURENT, M ULLMANN, R ZACEK, G BASHKIROV, V DOLGOSHEIN, BA STIFUTKIN, A BASHINDZHAGYAN, GL ERMOLOV, PF GLADILIN, LK GOLUBKOV, YA KOBRIN, VD KORZHAVINA, IA KUZMIN, VA LUKINA, OY PROSKURYAKOV, AS SAVIN, AA SHCHEGLOVA, LM SOLOMIN, AN ZOTOV, NP CHLEBANA, F DAKE, A ENGELEN, J DEKAMPS, M KOOIJMAN, P KRUSE, A TIECKE, H VERKERKE, W VREESWIJK, M WIGGERS, L DEWOLF, E VANWOUDENBERG, R ACOSTA, D BYLSMA, B DURKIN, LS HONSCHEID, K LI, C LING, TY MCLEAN, KW MURRAY, WN PARK, IH ROMANOWSKI, TA SEIDLEIN, R BAILEY, DS BYRNE, A CASHMORE, RJ COOPERSARKAR, AM DEVENISH, RCE HARNEW, N LANCASTER, M LINDEMANN, L MCFALL, JD NATH, C NOYES, VA QUADT, A TICKNER, JR UIJTERWAAL, H WALCZAK, R WATERS, DS WILSON, FF YIP, T ABBIENDI, G BERTOLIN, A BRUGNERA, R CARLIN, R DALCORSO, F DEGIORGI, M DOSSELLI, U LIMENTANI, S MORANDIN, M POSOCCO, M STANCO, L STROILI, R VOCI, C BULMAHN, J BUTTERWORTH, JM FEILD, RG OH, BY WHITMORE, JJ DAGOSTINI, G MARINI, G NIGRO, A TASSI, E HART, JC MCCUBBIN, NA PRYTZ, K SHAH, TP SHORT, TL BARBERIS, E DUBBS, T HEUSCH, C VANHOOK, M LOCKMAN, W RAHN, JT SADROZINSKI, HFW SEIDEN, A WILLIAMS, DC BILTZINGER, J SEIFERT, RJ SCHWARZER, O WALENTA, AH ZECH, G ABRAMOWICZ, H BRISKIN, G DAGAN, S LEVY, A HASEGAWA, T HAZUMI, M ISHII, T KUZE, M MINE, S NAGASAWA, Y NAKAO, M SUZUKI, I TOKUSHUKU, K YAMADA, S YAMAZAKI, Y CHIBA, M HAMATSU, R HIROSE, T HOMMA, K KITAMURA, S NAKAMITSU, Y YAMAUCHI, K CIRIO, R COSTA, M FERRERO, MI LAMBERTI, L MASELLI, S PERONI, C SACCHI, R SOLANO, A STAIANO, A DARDO, M BAILEY, DC BANDYOPADHYAY, D BENARD, F BRKIC, M GINGRICH, DM HARTNER, GF JOO, KK LEVMAN, GM MARTIN, JF ORR, RS POLENZ, S SAMPSON, CR TEUSCHER, RJ CATTERALL, CD JONES, TW KAZIEWICZ, PB LANE, JB SAUNDERS, RL SHULMAN, J BLANKENSHIP, K LU, B MO, LW BOGUSZ, W CHARCHULA, K CIBOROWSKI, J GAJEWSKI, J GRZELAK, G KASPRZAK, M KRZYZANOWSKI, M MUCHOROWSKI, K NOWAK, RJ PAWLAK, JM TYMIENIECKA, T WROBLEWSKI, AK ZAKRZEWSKI, JA ZARNECKI, AF ADAMUS, M EISENBERG, Y KARSHON, U REVEL, D ZERZION, D ALI, I BADGETT, WF BEHRENS, B DASU, S FORDHAM, C FOUDAS, C GOUSSIOU, A LOVELESS, RJ REEDER, DD SILVERSTEIN, S SMITH, WH VAICIULIS, A WODARCZYK, M TSURUGAI, T BHADRA, S CARDY, ML FAGERSTROEM, CP FRISKEN, WR FURUTANI, KM KHAKZAD, M SCHMIDKE, WB AF DERRICK, M KRAKAUER, D MAGILL, S MIKUNAS, D MUSGRAVE, B REPOND, J STANEK, R TALAGA, RL ZHANG, H AYAD, R BARI, G BASILE, M BELLAGAMBA, L BOSCHERINI, D BRUNI, A BRUNI, G BRUNI, P ROMEO, GC CASTELLINI, G CHIARINI, M CIFARELLI, L CINDOLO, F CONTIN, A CORRADI, M GIALAS, I GIUSTI, P IACOBUCCI, G LAURENTI, G LEVI, G MARGOTTI, A MASSAM, T NANIA, R NEMOZ, C PALMONARI, F POLINI, A SARTORELLI, G TIMELLINI, R GARCIA, YZ ZICHICHI, A BARGENDE, A CRITTENDEN, J DESCH, K DIEKMANN, B DOEKER, T ECKERT, M FELD, L FREY, A GEERTS, M GROTHE, M HARTMANN, H HEINLOTH, K HILGER, E JAKOB, HP KATZ, UF MARI, SM MENGEL, S MOLLEN, J PAUL, E PFEIFFER, M REMBSER, C SCHRAMM, D STAMM, J WEDEMEYER, R CAMPBELLROBSON, S CASSIDY, A DYCE, N FOSTER, B GEORGE, S GILMORE, R HEATH, GP HEATH, HF LLEWELLYN, TJ MORGADO, CJS NORMAN, DJP OMARA, JA TAPPER, RJ WILSON, SS YOSHIDA, R RAU, RR ARNEODO, M CAPUA, M GARFAGNINI, A IANNOTTI, L SCHIOPPA, M SUSINNO, G BERNSTEIN, A CALDWELL, A CARTIGLIA, N PARSONS, JA RITZ, S SCIULLI, F STRAUB, PB WAI, L YANG, S ZHU, Q BORZEMSKI, P CHWASTOWSKI, J ESKREYS, A PIOTRZKOWSKI, K ZACHARA, M ZAWIEJSKI, L ADAMCZYK, L BEDNAREK, B JELEN, K KISIELEWSKA, D KOWALSKI, T RULIKOWSKAZAREBSKA, E SUSZYCKI, L ZAJAC, J KOTANSKI, A PRZYBYCIEN, M BAUERDICK, LAT BEHRENS, U BEIER, H BIENLEIN, JK COLDEWEY, C DEPPE, O DESLER, K DREWS, G FLASINSKI, M GILKINSON, DJ GLASMAN, C GOTTLICHER, P GROSSEKNETTER, J GUTJAHR, B HAAS, T HAIN, W HASELL, D HESSLING, H IGA, Y JOHNSON, K JOOS, P KASEMANN, M KLANNER, R KOCH, W KOPKE, L KOTZ, U KOWALSKI, H LABS, J LADAGE, A LOHR, B LOWE, M LUKE, D MAINUSCH, J MANCZAK, O MONTEIRO, T NG, JST NICKEL, S NOTZ, D OHRENBERG, K ROCO, M ROHDE, M ROLDAN, J SCHNEEKLOTH, U SCHULZ, W SELONKE, F STILIARIS, E SURROW, B VOSS, T WESTPHAL, D WOLF, G YOUNGMAN, C ZEUNER, W ZHOU, JF GRABOSCH, HJ KHARCHILAVA, A LEICH, A MATTINGLY, MCK MEYER, A SCHLENSTEDT, S WULFF, N BARBAGLI, G PELFER, P ANZIVINO, G MACCARRONE, G DEPASQUALE, S VOTANO, L BAMBERGER, A EISENHARDT, S FREIDHOF, A SOLDNERREMBOLD, S SCHROEDER, J TREFZGER, T BROOK, NH BUSSEY, PJ DOYLE, AT FLECK, JI SAXON, DH UTLEY, ML WILSON, AS DANNEMANN, A HOLM, U HORSTMANN, D NEUMANN, T SINKUS, R WICK, K BADURA, E BUROW, BD HAGGE, L LOHRMANN, E MILEWSKI, J NAKAHATA, M PAVEL, N POELZ, G SCHOTT, W ZETSCHE, F BACON, TC BRUEMMER, N BUTTERWORTH, I GALLO, E HARRIS, VL HUNG, BYH LONG, KR MILLER, DB MORAWITZ, PPO PRINIAS, A SEDGBEER, JK WHITFIELD, AF MALLIK, U MCCLIMENT, E WANG, MZ WANG, SM WU, JT CLOTH, P FILGES, D AN, SH HONG, SM NAM, SW PARK, SK SUH, MH YON, SH IMLAY, R KARTIK, S KIM, HJ MCNEIL, RR METCALF, W NADENDLA, VK BARREIRO, F CASES, G FERNANDEZ, JP GRACIANI, R HERNANDEZ, JM HERVAS, L LABARGA, L MARTINEZ, M DELPESO, J PUGA, J TERRON, J DETROCONIZ, JF SMITH, GR CORRIVEAU, F HANNA, DS HARTMANN, J HUNG, LW LIM, JN MATTHEWS, CG PATEL, PM SINCLAIR, LE STAIRS, DG STLAURENT, M ULLMANN, R ZACEK, G BASHKIROV, V DOLGOSHEIN, BA STIFUTKIN, A BASHINDZHAGYAN, GL ERMOLOV, PF GLADILIN, LK GOLUBKOV, YA KOBRIN, VD KORZHAVINA, IA KUZMIN, VA LUKINA, OY PROSKURYAKOV, AS SAVIN, AA SHCHEGLOVA, LM SOLOMIN, AN ZOTOV, NP CHLEBANA, F DAKE, A ENGELEN, J DEKAMPS, M KOOIJMAN, P KRUSE, A TIECKE, H VERKERKE, W VREESWIJK, M WIGGERS, L DEWOLF, E VANWOUDENBERG, R ACOSTA, D BYLSMA, B DURKIN, LS HONSCHEID, K LI, C LING, TY MCLEAN, KW MURRAY, WN PARK, IH ROMANOWSKI, TA SEIDLEIN, R BAILEY, DS BYRNE, A CASHMORE, RJ COOPERSARKAR, AM DEVENISH, RCE HARNEW, N LANCASTER, M LINDEMANN, L MCFALL, JD NATH, C NOYES, VA QUADT, A TICKNER, JR UIJTERWAAL, H WALCZAK, R WATERS, DS WILSON, FF YIP, T ABBIENDI, G BERTOLIN, A BRUGNERA, R CARLIN, R DALCORSO, F DEGIORGI, M DOSSELLI, U LIMENTANI, S MORANDIN, M POSOCCO, M STANCO, L STROILI, R VOCI, C BULMAHN, J BUTTERWORTH, JM FEILD, RG OH, BY WHITMORE, JJ DAGOSTINI, G MARINI, G NIGRO, A TASSI, E HART, JC MCCUBBIN, NA PRYTZ, K SHAH, TP SHORT, TL BARBERIS, E DUBBS, T HEUSCH, C VANHOOK, M LOCKMAN, W RAHN, JT SADROZINSKI, HFW SEIDEN, A WILLIAMS, DC BILTZINGER, J SEIFERT, RJ SCHWARZER, O WALENTA, AH ZECH, G ABRAMOWICZ, H BRISKIN, G DAGAN, S LEVY, A HASEGAWA, T HAZUMI, M ISHII, T KUZE, M MINE, S NAGASAWA, Y NAKAO, M SUZUKI, I TOKUSHUKU, K YAMADA, S YAMAZAKI, Y CHIBA, M HAMATSU, R HIROSE, T HOMMA, K KITAMURA, S NAKAMITSU, Y YAMAUCHI, K CIRIO, R COSTA, M FERRERO, MI LAMBERTI, L MASELLI, S PERONI, C SACCHI, R SOLANO, A STAIANO, A DARDO, M BAILEY, DC BANDYOPADHYAY, D BENARD, F BRKIC, M GINGRICH, DM HARTNER, GF JOO, KK LEVMAN, GM MARTIN, JF ORR, RS POLENZ, S SAMPSON, CR TEUSCHER, RJ CATTERALL, CD JONES, TW KAZIEWICZ, PB LANE, JB SAUNDERS, RL SHULMAN, J BLANKENSHIP, K LU, B MO, LW BOGUSZ, W CHARCHULA, K CIBOROWSKI, J GAJEWSKI, J GRZELAK, G KASPRZAK, M KRZYZANOWSKI, M MUCHOROWSKI, K NOWAK, RJ PAWLAK, JM TYMIENIECKA, T WROBLEWSKI, AK ZAKRZEWSKI, JA ZARNECKI, AF ADAMUS, M EISENBERG, Y KARSHON, U REVEL, D ZERZION, D ALI, I BADGETT, WF BEHRENS, B DASU, S FORDHAM, C FOUDAS, C GOUSSIOU, A LOVELESS, RJ REEDER, DD SILVERSTEIN, S SMITH, WH VAICIULIS, A WODARCZYK, M TSURUGAI, T BHADRA, S CARDY, ML FAGERSTROEM, CP FRISKEN, WR FURUTANI, KM KHAKZAD, M SCHMIDKE, WB TI EXCLUSIVE RHO(0) PRODUCTION IN DEEP-INELASTIC ELECTRON-PROTON SCATTERING AT HERA SO PHYSICS LETTERS B LA English DT Article ID ELECTROPRODUCTION; DETECTOR; QCD AB The exclusive production of rho(0) mesons in deep inelastic electron-proton scattering has been studied using the ZEUS detector Cross sections have been measured in the range 7 < Q(2) < 25 GeV2 for gamma*p centre of mass (c.m.) energies from 40 to 130 GeV. The gamma*p --> rho(0)p cross section exhibits a Q(-(4.2+/-0.8-0.5+14)) dependence and bath longitudinally and transversely polarised rho(0)'s are observed. The gamma*p --> rho(0)p cross section rises strongly with increasing c.m. energy, when compared with NMC data at lower energy, which cannot be explained by production through soft pomeron exchange. The data are compared with perturbative QCD calculations where the rise in the cross section reflects the increase in the gluon density at low x. C1 UNIV BOLOGNA, BOLOGNA, ITALY. IST NAZL FIS NUCL, I-40126 BOLOGNA, ITALY. UNIV BONN, INST PHYS, W-5300 BONN, GERMANY. UNIV BRISTOL, HH WILLS PHYS LAB, BRISTOL BS8 1TL, AVON, ENGLAND. BROOKHAVEN NATL LAB, UPTON, NY 11973 USA. UNIV CALABRIA, DEPT PHYS, I-87036 COSENZA, ITALY. IST NAZL FIS NUCL, I-87036 COSENZA, ITALY. COLUMBIA UNIV, NEVIS LABS, IRVINGTON, NY USA. INST NUCL PHYS, KRAKOW, POLAND. AGH UNIV SCI & TECHNOL, FAC PHYS & NUC TECHN, KRAKOW, POLAND. 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MOSCOW PHYS ENGN INST, MOSCOW, RUSSIA. MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, MOSCOW, RUSSIA. NIKHEF, AMSTERDAM, NETHERLANDS. UNIV AMSTERDAM, AMSTERDAM, NETHERLANDS. OHIO STATE UNIV, DEPT PHYS, COLUMBUS, OH 43210 USA. UNIV OXFORD, DEPT PHYS, OXFORD, ENGLAND. UNIV PADUA, DIPARTIMENTO FIS, PADUA, ITALY. IST NAZL FIS NUCL, I-35100 PADUA, ITALY. PENN STATE UNIV, DEPT PHYS, UNIVERSITY PK, PA 16802 USA. UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY. IST NAZL FIS NUCL, ROME, ITALY. RUTHERFORD APPLETON LAB, DIDCOT OX11 0QX, OXON, ENGLAND. UNIV CALIF SANTA CRUZ, SANTA CRUZ, CA 95064 USA. UNIV GESAMTHSCH SIEGEN, FACHBEREICH PHYS, W-5900 SIEGEN, GERMANY. TEL AVIV UNIV, SCH PHYS, IL-69978 TEL AVIV, ISRAEL. UNIV TOKYO, INST NUCL STUDY, TOKYO, JAPAN. TOKYO METROPOLITAN UNIV, DEPT PHYS, TOKYO, JAPAN. UNIV TURIN, DIPARTIMENTO FIS SPERIMENTALE, TURIN, ITALY. IST NAZL FIS NUCL, I-10125 TURIN, ITALY. UNIV TURIN, FAC SCI 2, ALESSANDRIA, ITALY. IST NAZL FIS NUCL, ALESSANDRIA, ITALY. UNIV TORONTO, DEPT PHYS, TORONTO, ON, CANADA. UCL, DEPT PHYS & ASTRON, LONDON, ENGLAND. VIRGINIA POLYTECH INST & STATE UNIV, BLACKSBURG, VA 24061 USA. UNIV WARSAW, INST EXPTL PHYS, WARSAW, POLAND. INST NUCL STUDIES, PL-00681 WARSAW, POLAND. WEIZMANN INST SCI, DEPT PHYS NUCL, REHOVOT, ISRAEL. UNIV WISCONSIN, DEPT PHYS, MADISON, WI 53706 USA. MEIJI GAKUIN UNIV, FAC GEN EDUC, YOKOHAMA, KANAGAWA, JAPAN. YORK UNIV, DEPT PHYS, N YORK, ON M3J 1P3, CANADA. RP ARGONNE NATL LAB, 9700 S CASS AVE, ARGONNE, IL 60439 USA. RI Solomin, Anatoly/C-3072-2016; Graciani Diaz, Ricardo/I-5152-2016; Gladilin, Leonid/B-5226-2011; Morandin, Mauro/A-3308-2016; Bashkirov, Vladimir/A-4818-2008; De Pasquale, Salvatore/B-9165-2008; Lancaster, Mark/C-1693-2008; Doyle, Anthony/C-5889-2009; Golubkov, Yury/E-1643-2012; Proskuryakov, Alexander/J-6166-2012; Katz, Uli/E-1925-2013; Wiggers, Leo/B-5218-2015; Hernandez Calama, Jose Maria/H-9127-2015; Tassi, Enrico/K-3958-2015 OI Graciani Diaz, Ricardo/0000-0001-7166-5198; Gladilin, Leonid/0000-0001-9422-8636; Morandin, Mauro/0000-0003-4708-4240; De Pasquale, Salvatore/0000-0001-9236-0748; Doyle, Anthony/0000-0001-6322-6195; Katz, Uli/0000-0002-7063-4418; Wiggers, Leo/0000-0003-1060-0520; Hernandez Calama, Jose Maria/0000-0001-6436-7547; NR 38 TC 87 Z9 87 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 EI 1873-2445 J9 PHYS LETT B JI Phys. Lett. B PD AUG 24 PY 1995 VL 356 IS 4 BP 601 EP 616 DI 10.1016/0370-2693(95)00879-P PG 16 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RR709 UT WOS:A1995RR70900028 ER PT J AU SHIN, YGK BRUNSCHWIG, BS CREUTZ, C SUTIN, N AF SHIN, YGK BRUNSCHWIG, BS CREUTZ, C SUTIN, N TI TOWARD A QUANTITATIVE UNDERSTANDING OF DIPOLE-MOMENT CHANGES IN CHARGE-TRANSFER TRANSITIONS - ELECTROABSORPTION SPECTROSCOPY OF TRANSITION-METAL COMPLEXES SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Note C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. RI Brunschwig, Bruce/G-4249-2011 NR 15 TC 48 Z9 48 U1 0 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 23 PY 1995 VL 117 IS 33 BP 8668 EP 8669 DI 10.1021/ja00138a024 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA RQ698 UT WOS:A1995RQ69800024 ER PT J AU HOYT, AE RICCO, AJ YANG, HC CROOKS, RM AF HOYT, AE RICCO, AJ YANG, HC CROOKS, RM TI SPECIATION OF LINEAR AND BRANCHED HYDROCARBONS BY A FLUORINATED POLYIMIDE FILM-BASED SURFACE-ACOUSTIC-WAVE SENSOR SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Note ID SPECTROSCOPY; PROBE C1 SANDIA NATL LABS, DEPT MICROSENSOR RES & DEV, ALBUQUERQUE, NM 87185 USA. TEXAS A&M UNIV, DEPT CHEM, COLLEGE STN, TX 77843 USA. RI Ricco, Antonio/A-5273-2010; OI Ricco, Antonio/0000-0002-2355-4984 NR 12 TC 9 Z9 9 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD AUG 23 PY 1995 VL 117 IS 33 BP 8672 EP 8673 DI 10.1021/ja00138a026 PG 2 WC Chemistry, Multidisciplinary SC Chemistry GA RQ698 UT WOS:A1995RQ69800026 ER PT J AU BETHARDY, GA MACDONALD, RG AF BETHARDY, GA MACDONALD, RG TI DIRECT MEASUREMENT OF THE TRANSITION DIPOLE-MOMENT OF THE V(3) ASYMMETRIC C-H STRETCHING VIBRATION OF THE CH3 RADICAL SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID DIODE-LASER SPECTROSCOPY; TERT-BUTYL RADICALS; RATE CONSTANTS; NU-2 BAND; INFRARED INTENSITIES; V2 BAND; METHYL; CD3; HCN; TEMPERATURE AB A direct measurement of the transition dipole moment, mu(3), Of the degenerate v 3 in-plane asymmetric C-H stretching vibration of the methyl radical has been made. The measurements were carried out in a flow reactor using laser-photolysis transient infrared absorption spectroscopy. Cyano (CN) radicals (and Cl atoms) were produced by laser photolysis of BrCN (or ClCN) at 193 nm and reacted with methane to give both CH3 and HCN (and HCl). The intensities of 18 rotational lines of the v(3) fundamental band were measured relative to the R(8) line of the C-H stretching vibration (v(3)) of HCN(001<--0). The best estimate of the transition dipole moment of the CH3 (001(1)0<--0) transition was provided b) the measured line intensity for the CH3 (001(1)0<--0)(r)R(3,3) transition and was determined-to be mu(3)=0.0327+/-0.0021 D. (C) 1995 American Institute of Physics. RP BETHARDY, GA (reprint author), ARGONNE NATL LAB,DIV CHEM,9700 S CASS AVE,ARGONNE,IL 60439, USA. NR 61 TC 27 Z9 29 U1 0 U2 5 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 2863 EP 2872 DI 10.1063/1.470499 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500010 ER PT J AU TANG, J DIKSHIT, SN NORRIS, JR AF TANG, J DIKSHIT, SN NORRIS, JR TI ELECTRON-SPIN-RESONANCE LINE-SHAPES FOR ONE-DIMENSIONAL AND 2-DIMENSIONAL RANDOM-WALK PROCESSES SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID TRANS-POLYACETYLENE; SOLITON DIFFUSION; SPHAEROIDES R-26; DYNAMICS AB One- and two-dimensional random walk processes and their effects on EPR (electron spin paramagnetic resonance) line shapes are examined. Discrepancies between the coarse continuum model and the discrete hopping model are discussed. Closed-form formulas are prescribed for the distribution function, correlation (memory) function and the EPR line shapes, covering the entire range between the slow and the fast hopping limits. Deviation from Gaussian or Lorentzian line shape is shown for intermediate hopping rates. Differences between the cases of a closed loop and an open chain are illustrated. Time-domain analysis of line shape measurements can provide information about the hopping rate constants, site numbers in an open or closed chain, and the activation energy. (C) 1995 American Institute of Physics. C1 UNIV CHICAGO, DEPT CHEM, CHICAGO, IL 60637 USA. RP ARGONNE NATL LAB, DIV CHEM, 9700 S CASS AVE, ARGONNE, IL 60439 USA. RI Tang, Jau/D-8382-2012 OI Tang, Jau/0000-0003-2078-1513 NR 32 TC 23 Z9 23 U1 0 U2 5 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-9606 EI 1089-7690 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 2873 EP 2881 DI 10.1063/1.470500 PG 9 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500011 ER PT J AU YENCHA, AJ HOPKIRK, A GROVER, JR CHENG, BM LEFEBVREBRION, H KELLER, F AF YENCHA, AJ HOPKIRK, A GROVER, JR CHENG, BM LEFEBVREBRION, H KELLER, F TI ION-PAIR FORMATION IN THE PHOTODISSOCIATION OF HF AND DF SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID DISSOCIATION-ENERGIES; ELECTRONIC-SPECTRUM; PHOTOIONIZATION; IONIZATION; HCL AB The excitation functions for ion-pair formation in supersonically cooled HF and DF have been measured using synchrotron radiation with photon resolutions of 0.12 and 0.06 nm. The excitation functions for both molecules are characterized by an intense, sharp peak, essentially coincident with the thermodynamic onset for ion-pair formation, followed by weaker, broader structure to higher energy. All of the structure is interpreted as arising from the photoexcitation of Rydberg states of the neutral molecules that are predissociated by the V (1) Sigma(+) ion-pair state potential. Ab initio calculations using multichannel quantum defect theory to include both predissociation and autoionization enabled assignments of the observed structure to be made and the construction of simulated ion-pair excitation function spectra in an energy region encompassing similar to 0.25 eV of the lowest energy part of the experimental excitation functions. The intense first peak in the ion-pair excitation function of both molecules is assigned to a high vibrational level of the 3s sigma Rydberg state converging to the A (2) Sigma(+) ion state, while most of the structure immediately following the first peak is assigned to d Rydberg complexes converging to the v(+) = 1 level of both X (II)-I-2 ion substates. (C) 1995 American Institute of Physics. C1 SUNY ALBANY,DEPT PHYS,ALBANY,NY 12222. EPSRC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND. BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. UNIV PARIS 11,PHOTOPHYS MOLEC LAB,F-91405 ORSAY,FRANCE. RP YENCHA, AJ (reprint author), SUNY ALBANY,DEPT CHEM,ALBANY,NY 12222, USA. NR 21 TC 14 Z9 14 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 2882 EP 2887 DI 10.1063/1.470501 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500012 ER PT J AU ROBERTSON, SH WAGNER, AF WARDLAW, DM AF ROBERTSON, SH WAGNER, AF WARDLAW, DM TI CANONICAL FLEXIBLE TRANSITION-STATE THEORY REVISITED SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID KASSEL-MARCUS THEORY; REACTION COORDINATE; RADICAL RECOMBINATION; ASSOCIATION REACTIONS; RATE CONSTANTS; BOND LENGTH; LOOSENESS; IMPLEMENTATION; DISSOCIATIONS AB A simple formula for the canonical flexible transition state theory expression for the thermal reaction rate Constant is derived that is exact in the limit of the reaction path being well approximated by the distance between the centers of mass of the reactants. This formula evaluates classically the contribution to the rate constant from transitional degrees of freedom (those that evolve from free rotations in the limit of infinite separation of the reactants). As a result of this treatment, the formula contains the product of two factors: one that exclusively depends on the collision kinematics and one that exclusively depends on the potential energy surface that controls the transitional degrees of freedom. This second factor smoothly varies, in the classical limit, from harmonic oscillator to hindered rotor to free rotor partition functions as the potential energy surface varies from quadratic to sinusoidal to a constant in its dependence on the relative orientation angles of the fragments. An application to the recombination of CH3+H essentially demonstrates exact agreement with a previous flexible transition state theory study in which all integrals are carried out numerically. The simple formulas presented in this paper allow the classical inclusion of large amplitude motion of arbitrary complexity in the determination of the canonical rate constant for reactions whose reaction path is dominated by the distance between the centers of mass of the reactants. (C) 1995 American Institute of Physics. C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. QUEENS UNIV,DEPT CHEM,KINGSTON,ON K7L 3N6,CANADA. RP ROBERTSON, SH (reprint author), UNIV LEEDS,SCH CHEM,LEEDS LS2 9JT,W YORKSHIRE,ENGLAND. NR 30 TC 39 Z9 39 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 2917 EP 2928 DI 10.1063/1.470479 PG 12 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500016 ER PT J AU SHI, YM BOROVIK, AE HEARST, JE AF SHI, YM BOROVIK, AE HEARST, JE TI ELASTIC ROD MODEL INCORPORATING SHEAR AND EXTENSION, GENERALIZED NONLINEAR SCHRODINGER-EQUATIONS, AND NOVEL CLOSED-FORM SOLUTIONS FOR SUPERCOILED DNA SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID CIRCULAR DNAS; KIRCHHOFF; DYNAMICS; TWIST AB We have derived a generalized one-dimensional time-independent nonlinear Schrodinger equation for the stationary state configurations of supercoiled DNA, based on an elastic rod model which includes deformations of bending, twisting, shear, and extension. Closed-form solutions for the axis of DNA have been obtained in terms of elliptic functions and elliptic integrals. These solutions describe the stationary state configurations of supercoiled DNA. (C) 1995 American Institute of Physics. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV STRUCT BIOL,BERKELEY,CA 94720. RP SHI, YM (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. NR 48 TC 19 Z9 22 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 3166 EP 3183 DI 10.1063/1.470250 PG 18 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500043 ER PT J AU KALYUZHNYI, YV CUMMINGS, PT AF KALYUZHNYI, YV CUMMINGS, PT TI SOLUTION OF THE POLYMER PERCUS-YEVICK APPROXIMATION FOR THE MULTICOMPONENT TOTALLY FLEXIBLE STICKY 2-POINT MODEL OF POLYMERIZING FLUID SO JOURNAL OF CHEMICAL PHYSICS LA English DT Note ID INTEGRAL-EQUATION THEORY; DIRECTIONAL ATTRACTIVE FORCES; HARD-SPHERE CHAINS; LIQUIDS; MELTS AB The analytic solution of the polymer Percus-Yevick approximation for the multicomponent version of the totally flexible sticky two-point model of Wertheim is obtained in closed form. The model consists of an n-component mixture of hard spheres with two sticky points of the type A and B randomly placed on the surface of each hard sphere. The solution of the problem has been reduced to solving a set of 5n algebraic equations. An iterative scheme of the solution of this set of equations is proposed. (C) 1995 American Institute of Physics. C1 OAK RIDGE NATL LAB,DIV CHEM TECHNOL,OAK RIDGE,TN 37831. RP KALYUZHNYI, YV (reprint author), UNIV TENNESSEE,DEPT CHEM ENGN,KNOXVILLE,TN 37996, USA. RI Cummings, Peter/B-8762-2013 OI Cummings, Peter/0000-0002-9766-2216 NR 20 TC 29 Z9 29 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 22 PY 1995 VL 103 IS 8 BP 3265 EP 3267 DI 10.1063/1.470259 PG 3 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP715 UT WOS:A1995RP71500052 ER PT J AU WANG, W LIU, Y SONEK, GJ BERNS, MW KELLER, RA AF WANG, W LIU, Y SONEK, GJ BERNS, MW KELLER, RA TI OPTICAL TRAPPING AND FLUORESCENCE DETECTION IN LAMINAR-FLOW STREAMS SO APPLIED PHYSICS LETTERS LA English DT Article ID SINGLE MOLECULES AB An optical laser trap with fluorescence excitation/emission capability has been integrated in a flow cytometric geometry for the study of microparticle confinement and off-axis fluorescence detection in laminar flow streams. Measurements of particle escape velocity, trapping efficiency, and fluorescence intensity are presented for 2 mu m diameter dye-tagged;latex microspheres in laminar flow streams having velocities of up to 12 mm/s. Experimental results are compared with theoretical values for flow velocity and fluorescence intensity and found to be in excellent agreement. (C) 1995 American Institute of Physics. C1 UNIV CALIF IRVINE,BECKMAN LASER INST & MED CLIN,IRVINE,CA 92717. LOS ALAMOS NATL LAB,CTR HUMAN GENOME STUDIES,DIV CHEM SCI & TECHNOL,LOS ALAMOS,NM 87545. RP WANG, W (reprint author), UNIV CALIF IRVINE,DEPT ELECT & COMP ENGN,IRVINE,CA 92717, USA. NR 14 TC 21 Z9 21 U1 1 U2 2 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 AUG 21 PY 1995 VL 67 IS 8 BP 1057 EP 1059 DI 10.1063/1.114463 PG 3 WC Physics, Applied SC Physics GA RQ002 UT WOS:A1995RQ00200005 ER PT J AU LOVEJOY, ML MELLOCH, MR LUNDSTROM, MS AF LOVEJOY, ML MELLOCH, MR LUNDSTROM, MS TI TEMPERATURE-DEPENDENCE OF MINORITY AND MAJORITY CARRIER MOBILITIES IN DEGENERATELY DOPED GAAS SO APPLIED PHYSICS LETTERS LA English DT Article ID P-TYPE GAAS; ELECTRON-MOBILITY; TIME AB Measured minority and majority carrier mobility temperature dependencies in heavily doped n- and p-GaAs are compared. Majority carrier mobilities in heavily doped GaAs are essentially temperature (T) independent while minority carrier mobilities exhibit a roughly 1/T dependence. Majority carrier freezeout, which reduces both majority-minority carrier and ionized impurity scattering, is shown not to be responsible for the 1/T minority carrier mobility dependence. The difference in minority and majority carrier mobility T dependencies is explained in terms of the increased degree of degeneracy of majority carriers with decreased temperature, which decreases majority-minority carrier scattering. (C) 1995 American Institute of Physics. C1 PURDUE UNIV,SCH ELECT ENGN,W LAFAYETTE,IN 47907. PURDUE UNIV,MRSEC TECHNOL ENABLING HETEROSTRUCT MAT,W LAFAYETTE,IN 47907. RP LOVEJOY, ML (reprint author), SANDIA NATL LABS,POB 5800,ALBUQUERQUE,NM 87185, USA. NR 14 TC 32 Z9 32 U1 0 U2 14 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 AUG 21 PY 1995 VL 67 IS 8 BP 1101 EP 1103 DI 10.1063/1.114974 PG 3 WC Physics, Applied SC Physics GA RQ002 UT WOS:A1995RQ00200020 ER PT J AU MILEHAM, JR PEARTON, SJ ABERNATHY, CR MACKENZIE, JD SHUL, RJ KILCOYNE, SP AF MILEHAM, JR PEARTON, SJ ABERNATHY, CR MACKENZIE, JD SHUL, RJ KILCOYNE, SP TI WET CHEMICAL ETCHING OF ALN SO APPLIED PHYSICS LETTERS LA English DT Article ID GROWTH; GAAS AB Single-crystal AIN grown on Al2O3 is found to be wet etched by AZ400K photoresist developer solution, in which the active component is KOH. The etching is thermally activated with an activation energy of 15.5+/-0.4 kcal mol(-1), and the etch rate is found to be strongly dependent on the crystalline quality of the AIN. There was no dependence of etch rate on solution agitation or any crystallographic dependence noted, and the etching is selective over other binary group III nitrides (GaN, InN) and substrate materials such as Al2O3 and GaAs. (C) 1995 American Institute of Physics. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RP MILEHAM, JR (reprint author), UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611, USA. NR 26 TC 107 Z9 109 U1 3 U2 35 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 AUG 21 PY 1995 VL 67 IS 8 BP 1119 EP 1121 DI 10.1063/1.114980 PG 3 WC Physics, Applied SC Physics GA RQ002 UT WOS:A1995RQ00200026 ER PT J AU FISCHEL, LB THEODOROU, DN AF FISCHEL, LB THEODOROU, DN TI SELF-CONSISTENT-FIELD MODEL OF THE POLYMER DIBLOCK COPOLYMER POLYMER INTERFACE SO JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS LA English DT Article ID CHAIN MOLECULE INTERPHASES; VARIABLE-DENSITY MODEL; PS-PMMA COPOLYMER; STATISTICAL THERMODYNAMICS; POLY(METHYL METHACRYLATE); BLOCK COPOLYMERS; LATTICE MODEL; SEMICRYSTALLINE POLYMER; INHOMOGENEOUS POLYMERS; HOMOPOLYMER INTERFACES AB The structure and thermodynamics of the interface between polystyrene (PS) and poly(methyl methacrylate) (PMMA) homopolymers with and without a diblock copolymer (for example, PS-PMMA) are elucidated using the Scheutjens and Fleer self-consistent, mean-field lattice model extended to incorporate conformational stiffness. All parameters of the model are obtained from known properties of the homopolymers, except for the Flory chi interaction parameter, which is fit to the binary interfacial width of 50 Angstrom. Using this chi, volume fraction profiles for the ternary interface match experiment quantitatively, giving an interfacial width of 75 Angstrom. The interfacial width exhibits a weak dependence on characteristic ratio. Although the volume-fraction profiles decay to the bulk values over ca. 200 Angstrom on each side, structural characteristics, such as the end-segment volume fractions and the mean-square z-component of the end-to-end distance, may differ from their bulk values as much as 400 Angstrom away from the interface. The volume-fraction, end-segment, mean-square z-component of the end-to-end distance, shape-parameter and bond-order parameter profiles indicate that copolymer chains are significantly stretched under experimental conditions. For fixed surface density of chains, with increasing chain length, a transition from reflected random coil to brush behaviour occurs over the region where the block radii of gyration are 1.2 to 1.7 times the mean interchain spacing. At high enough volume of copolymer per unit surface, the copolymer can no longer reside in a monolayer. Surface-phase equilibrium calculations between a monolayer and a trilayer predict that patches of trilayer will appear when the volume of copolymer per unit surface is roughly three times the block unperturbed root mean-square radius of gyration. The formation of a trilayer suggests an upper limit to the degree of strengthening of the interface by addition of larger amounts of block copolymer, as seen experimentally. C1 UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,CTR ADV MAT,BERKELEY,CA 94720. UNIV PATRAS,DEPT CHEM ENGN,GR-26500 PATRAI,GREECE. INST CHEM ENGN & HIGH TEMP CHEM PROC,GR-26500 PATRAI,GREECE. OI Theodorou, Doros/0000-0002-4763-9739 NR 74 TC 23 Z9 23 U1 0 U2 7 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0956-5000 J9 J CHEM SOC FARADAY T JI J. Chem. Soc.-Faraday Trans. PD AUG 21 PY 1995 VL 91 IS 16 BP 2381 EP 2402 DI 10.1039/ft9959102381 PG 22 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP946 UT WOS:A1995RP94600003 ER PT J AU RAJASEKARAN, JJ CURRO, JG AF RAJASEKARAN, JJ CURRO, JG TI INTERMOLECULAR PACKING OF FREELY JOINTED BRANCHED POLYALKENE MELTS - A MICROSCOPIC APPROACH SO JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS LA English DT Article ID POLYMER MELTS; LIQUIDS AB Polyalkene melts are modelled using a freely jointed chain model. Intermolecular correlations are investigated for different chain architectures using polymer reference interaction site model (PRISM) theory. A three-site model is used to represent local monomer structures in which the CH2 and CH sites on the backbone, and the CH2 and CH3 sites on the side chains, are considered as hard spheres. For 200 monomer chains of various architectures, we have calculated the six radial distribution functions at a packing fraction of 0.5. The side-chain sites are found to hinder the interchain approaching of backbone sites. These shielding effects are found to be reduced upon adding more backbone sites between the branches. The cohesive energy and isothermal compressibility were calculated for various monomer structures. It is found that the cohesive energy decreases with increasing linearity of the molecular structure. The symmetry of the branching with respect to the backbone is found to play a crucial role in lowering the cohesive energy. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RP RAJASEKARAN, JJ (reprint author), UNIV NEW MEXICO,ADV MAT LAB,ALBUQUERQUE,NM 87106, USA. NR 19 TC 12 Z9 12 U1 0 U2 0 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0956-5000 J9 J CHEM SOC FARADAY T JI J. Chem. Soc.-Faraday Trans. PD AUG 21 PY 1995 VL 91 IS 16 BP 2427 EP 2433 DI 10.1039/ft9959102427 PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP946 UT WOS:A1995RP94600006 ER PT J AU KREITMEIER, SN LIANG, GL NOID, DW WUNDERLICH, B AF KREITMEIER, SN LIANG, GL NOID, DW WUNDERLICH, B TI MOLECULAR-DYNAMICS SIMULATION OF THE TEMPERATURE-DEPENDENCE OF LATTICE-PARAMETERS OF ALKANE CRYSTALS DURING COOLING SO JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS LA English DT Article ID COMPUTER-SIMULATION; POLYMER LIQUID; POLYETHYLENE; MOTION; GLASS AB The cooling of a crystal of 192 pentacontamethylene chains has been followed by molecular dynamics simulation after instantaneous heating to various temperatures and cooling to 335 K at 0.8 K ps(-1) after heating to 436 K. The latter temperature is above the melting point of pentacontane C50H102, T-m = 365 K). The earlier report by G. L. Liang, D. W. Noid, B. G. Sumpter and B. Wunderlich, Acta Polym., 1993, 44, 219 on the changes in the simulated crystal has been extended by quantitative evaluation of the crystal parameters. The nature of the then-suggested hexagonal phase is discussed. On cooling, a transition of the crystal from a hexagonal ct-phase with freely 'rotating' chains to tilted monoclinic beta(M)-phase with large-amplitude chain fluctuations has been identified between 370 and 360 K with a gain of 1% in density. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. NR 32 TC 8 Z9 8 U1 0 U2 5 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE SCIENCE PARK MILTON ROAD, CAMBRIDGE, CAMBS, ENGLAND CB4 4WF SN 0956-5000 J9 J CHEM SOC FARADAY T JI J. Chem. Soc.-Faraday Trans. PD AUG 21 PY 1995 VL 91 IS 16 BP 2601 EP 2608 DI 10.1039/ft9959102601 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP946 UT WOS:A1995RP94600027 ER PT J AU DEBOER, RJ PERELSON, AS AF DEBOER, RJ PERELSON, AS TI TOWARDS A GENERAL FUNCTION DESCRIBING T-CELL PROLIFERATION SO JOURNAL OF THEORETICAL BIOLOGY LA English DT Article ID ANTIGEN; CLONES AB A new function is proposed for describing the rate of T cell proliferation in response to peptides on antigen-presenting cells. The model improves an earlier model of ours by allowing for a true maximum proliferation rate of the T cells. This is achieved by a simple change of variables that markedly relaxes the conditions for a conventional quasi-steady-state assumption. The new model has the same ''ecological'' properties as the previous one. Thus the natural competition in the model allows for regulation of T cell population size in the presence of continuous stimulation by antigen. An important feature is the competitive exclusion of T cell clones recognizing the same peptide with different affinities allowing for ''affinity selection''. Models for the population dynamics of experienced, naive and activated T cells are also developed. These T cell subpopulations compete with one another for antigen. In models with lymphokine production a ''proliferation threshold'' is obtained that allows for tolerance. (C) 1995 Academic Press Limited C1 LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545. RP DEBOER, RJ (reprint author), UNIV UTRECHT,PADUALAAN 8,3584 CH UTRECHT,NETHERLANDS. RI De Boer, Rob/B-6050-2011 OI De Boer, Rob/0000-0002-2130-691X FU NIAID NIH HHS [AI28433] NR 24 TC 98 Z9 100 U1 0 U2 3 PU ACADEMIC PRESS (LONDON) LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-5193 J9 J THEOR BIOL JI J. Theor. Biol. PD AUG 21 PY 1995 VL 175 IS 4 BP 567 EP 576 DI 10.1006/jtbi.1995.0165 PG 10 WC Biology; Mathematical & Computational Biology SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational Biology GA RT168 UT WOS:A1995RT16800015 PM 7475092 ER PT J AU ABE, F ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C APOLLINARI, G ARETI, H ATAC, M AUCHINCLOSS, P AZFAR, F AZZI, P BACCHETTA, N BADGETT, W BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BIRD, F BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOSWELL, C BOULOS, T BRANDENBURG, G BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, CN CHRISTOFEK, L CIHANGIR, S CLARK, AG COBAL, M CONTRERAS, M CONWAY, J COOPER, J CORDELLI, M COUYOUMTZELIS, C CRANE, D CUNNINGHAM, JD DANIELS, T DEJONGH, F DELCHAMPS, S DELLAGNELLO, S DELLORSO, M DEMORTIER, L DENBY, B DENINNO, M DERWENT, PF DEVLIN, T DICKSON, M DITTMANN, JR DONATI, S DRUCKER, RB DUNN, A EINSWEILER, K ELIAS, JE ELY, R ENGELS, E ENO, S ERREDE, D ERREDE, S FAN, Q FARHAT, B FIORI, I FLAUGHER, B FOSTER, GW FRANKLIN, M FRAUTSCHI, M FREEMAN, J FRIEDMAN, J FRY, A FUESS, TA FUKUI, Y FUNAKI, S GAGLIARDI, G GALEOTTI, S GALLINARO, M GARFINKEL, AF GEER, S GERDES, DW GIANNETTI, P GIOKARIS, N GIROMINI, P GLADNEY, L GLENZINSKI, D GOLD, M GONZALEZ, J GORDON, A GOSHAW, AT GOULIANOS, K GRASSMANN, H GREWAL, A GROER, L GROSSOPILCHER, C HABER, C HAHN, SR HAMILTON, R HANDLER, R HANS, RM HARA, K HARRAL, B HARRIS, RM HAUGER, SA HAUSER, J HAWK, C HEINRICH, J CRONINHENNESSY, D HOLLEBEEK, R HOLLOWAY, L HOLSCHER, A HONG, S HOUK, G HU, P HUFFMAN, BT HUGHES, R HURST, P HUSTON, J HUTH, J HYLEN, J INCAGLI, M INCANDELA, J ISO, H JENSEN, H JESSOP, CP JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARDELIS, DA KASHA, H KATO, Y KEEBLE, L KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KOEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LOOMIS, C LONG, O LORETI, M LOW, EH LU, J LUCCHESI, D LUCHINI, CB LUKENS, P LYS, J MAAS, P MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E MICHAIL, G MIKAMO, S MILLER, M MILLER, R MIMASHI, T MISCETTI, S MISHINA, M MITSUSHIO, H MIYASHITA, S MORITA, Y MOULDING, S MUELLER, J MUKHERJEE, A MULLER, T MUSGRAVE, P NAKAE, LF NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NODULMAN, L OGAWA, S OH, SH OHL, KE OISHI, R OKUSAWA, T PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PLUNKETT, R PONDROM, L PRODUIT, N PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIMONDI, F RISTORI, L ROACHBELLINO, M ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L SAKUMOTO, WK SALTZBERG, D SANSONI, A SCARPINE, V SCHINDLER, A SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCHNEIDER, O SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, M SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SILL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, L SONG, T SPALDING, J SPIEGEL, L SPHICAS, P SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SUMOROK, K SWARTZ, RL TAKAHASHI, T TAKIKAWA, K TARTARELLI, F TAYLOR, W TENG, PK TERAMOTO, Y TETHER, S THERIOT, D THOMAS, J THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TSENG, J TURCOTTE, M TURINI, N UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, SC VEJCIK, S VIDAL, R VONDRACEK, M VUCINIC, D WAGNER, RG WAGNER, RL WAINER, N WALKER, RC WANG, C WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, T WEBB, R WEI, C WENDT, C WENZEL, H WESTER, WC WESTHUSING, T WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, J WU, DY WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSEF, C YOSHIDA, T YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, S ZHANG, W ZUCCHELLI, S AF ABE, F ALBROW, MG AMENDOLIA, SR AMIDEI, D ANTOS, J ANWAYWIESE, C APOLLINARI, G ARETI, H ATAC, M AUCHINCLOSS, P AZFAR, F AZZI, P BACCHETTA, N BADGETT, W BAILEY, MW BAO, J DEBARBARO, P BARBAROGALTIERI, A BARNES, VE BARNETT, BA BARTALINI, P BAUER, G BAUMANN, T BEDESCHI, F BEHRENDS, S BELFORTE, S BELLETTINI, G BELLINGER, J BENJAMIN, D BENLLOCH, J BENSINGER, J BENTON, D BERETVAS, A BERGE, JP BERTOLUCCI, S BHATTI, A BIERY, K BINKLEY, M BIRD, F BISELLO, D BLAIR, RE BLOCKER, C BODEK, A BOKHARI, W BOLOGNESI, V BORTOLETTO, D BOSWELL, C BOULOS, T BRANDENBURG, G BROMBERG, C BUCKLEYGEER, E BUDD, HS BURKETT, K BUSETTO, G BYONWAGNER, A BYRUM, KL CAMMERATA, J CAMPAGNARI, C CAMPBELL, M CANER, A CARITHERS, W CARLSMITH, D CASTRO, A CEN, Y CERVELLI, F CHAO, HY CHAPMAN, J CHENG, MT CHIARELLI, G CHIKAMATSU, T CHIOU, CN CHRISTOFEK, L CIHANGIR, S CLARK, AG COBAL, M CONTRERAS, M CONWAY, J COOPER, J CORDELLI, M COUYOUMTZELIS, C CRANE, D CUNNINGHAM, JD DANIELS, T DEJONGH, F DELCHAMPS, S DELLAGNELLO, S DELLORSO, M DEMORTIER, L DENBY, B DENINNO, M DERWENT, PF DEVLIN, T DICKSON, M DITTMANN, JR DONATI, S DRUCKER, RB DUNN, A EINSWEILER, K ELIAS, JE ELY, R ENGELS, E ENO, S ERREDE, D ERREDE, S FAN, Q FARHAT, B FIORI, I FLAUGHER, B FOSTER, GW FRANKLIN, M FRAUTSCHI, M FREEMAN, J FRIEDMAN, J FRY, A FUESS, TA FUKUI, Y FUNAKI, S GAGLIARDI, G GALEOTTI, S GALLINARO, M GARFINKEL, AF GEER, S GERDES, DW GIANNETTI, P GIOKARIS, N GIROMINI, P GLADNEY, L GLENZINSKI, D GOLD, M GONZALEZ, J GORDON, A GOSHAW, AT GOULIANOS, K GRASSMANN, H GREWAL, A GROER, L GROSSOPILCHER, C HABER, C HAHN, SR HAMILTON, R HANDLER, R HANS, RM HARA, K HARRAL, B HARRIS, RM HAUGER, SA HAUSER, J HAWK, C HEINRICH, J CRONINHENNESSY, D HOLLEBEEK, R HOLLOWAY, L HOLSCHER, A HONG, S HOUK, G HU, P HUFFMAN, BT HUGHES, R HURST, P HUSTON, J HUTH, J HYLEN, J INCAGLI, M INCANDELA, J ISO, H JENSEN, H JESSOP, CP JOSHI, U KADEL, RW KAJFASZ, E KAMON, T KANEKO, T KARDELIS, DA KASHA, H KATO, Y KEEBLE, L KENNEDY, RD KEPHART, R KESTEN, P KESTENBAUM, D KEUP, RM KEUTELIAN, H KEYVAN, F KIM, DH KIM, HS KIM, SB KIM, SH KIM, YK KIRSCH, L KOEHN, P KONDO, K KONIGSBERG, J KOPP, S KORDAS, K KOSKA, W KOVACS, E KOWALD, W KRASBERG, M KROLL, J KRUSE, M KUHLMANN, SE KUNS, E LAASANEN, AT LABANCA, N LAMMEL, S LAMOUREUX, JI LECOMPTE, T LEONE, S LEWIS, JD LIMON, P LINDGREN, M LISS, TM LOCKYER, N LOOMIS, C LONG, O LORETI, M LOW, EH LU, J LUCCHESI, D LUCHINI, CB LUKENS, P LYS, J MAAS, P MAESHIMA, K MAGHAKIAN, A MAKSIMOVIC, P MANGANO, M MANSOUR, J MARIOTTI, M MARRINER, JP MARTIN, A MATTHEWS, JAJ MATTINGLY, R MCINTYRE, P MELESE, P MENZIONE, A MESCHI, E MICHAIL, G MIKAMO, S MILLER, M MILLER, R MIMASHI, T MISCETTI, S MISHINA, M MITSUSHIO, H MIYASHITA, S MORITA, Y MOULDING, S MUELLER, J MUKHERJEE, A MULLER, T MUSGRAVE, P NAKAE, LF NAKANO, I NELSON, C NEUBERGER, D NEWMANHOLMES, C NODULMAN, L OGAWA, S OH, SH OHL, KE OISHI, R OKUSAWA, T PAGLIARONE, C PAOLETTI, R PAPADIMITRIOU, V PARK, S PATRICK, J PAULETTA, G PAULINI, M PESCARA, L PETERS, MD PHILLIPS, TJ PIACENTINO, G PILLAI, M PLUNKETT, R PONDROM, L PRODUIT, N PROUDFOOT, J PTOHOS, F PUNZI, G RAGAN, K RIMONDI, F RISTORI, L ROACHBELLINO, M ROBERTSON, WJ RODRIGO, T ROMANO, J ROSENSON, L SAKUMOTO, WK SALTZBERG, D SANSONI, A SCARPINE, V SCHINDLER, A SCHLABACH, P SCHMIDT, EE SCHMIDT, MP SCHNEIDER, O SCIACCA, GF SCRIBANO, A SEGLER, S SEIDEL, S SEIYA, Y SGANOS, G SGOLACCHIA, A SHAPIRO, M SHAW, NM SHEN, Q SHEPARD, PF SHIMOJIMA, M SHOCHET, M SIEGRIST, J SILL, A SINERVO, P SINGH, P SKARHA, J SLIWA, K SMITH, DA SNIDER, FD SONG, L SONG, T SPALDING, J SPIEGEL, L SPHICAS, P SPIES, A STANCO, L STEELE, J STEFANINI, A STRAHL, K STRAIT, J STUART, D SULLIVAN, G SUMOROK, K SWARTZ, RL TAKAHASHI, T TAKIKAWA, K TARTARELLI, F TAYLOR, W TENG, PK TERAMOTO, Y TETHER, S THERIOT, D THOMAS, J THOMAS, TL THUN, R TIMKO, M TIPTON, P TITOV, A TKACZYK, S TOLLEFSON, K TOLLESTRUP, A TONNISON, J DETROCONIZ, JF TSENG, J TURCOTTE, M TURINI, N UEMURA, N UKEGAWA, F UNAL, G VANDENBRINK, SC VEJCIK, S VIDAL, R VONDRACEK, M VUCINIC, D WAGNER, RG WAGNER, RL WAINER, N WALKER, RC WANG, C WANG, CH WANG, G WANG, J WANG, MJ WANG, QF WARBURTON, A WATTS, T WEBB, R WEI, C WENDT, C WENZEL, H WESTER, WC WESTHUSING, T WICKLUND, AB WICKLUND, E WILKINSON, R WILLIAMS, HH WILSON, P WINER, BL WOLINSKI, J WU, DY WU, X WYSS, J YAGIL, A YAO, W YASUOKA, K YE, Y YEH, GP YEH, P YIN, M YOH, J YOSEF, C YOSHIDA, T YOVANOVITCH, D YU, I YUN, JC ZANETTI, A ZETTI, F ZHANG, L ZHANG, S ZHANG, W ZUCCHELLI, S TI MEASUREMENT OF THE B-MESON DIFFERENTIAL CROSS-SECTION D-SIGMA/DP(T) IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV SO PHYSICAL REVIEW LETTERS LA English DT Article ID = 1.8 TEV; BOTTOM-QUARK PRODUCTION; (P)OVER-BAR-P COLLISIONS; BEAUTY PRODUCTION; E+E ANNIHILATION; COLLIDER AB This paper presents the first direct measurement of the B meson differential cross section d sigma/d(pT) in <(pp)over bar> collisions at root s = 1.8 TeV using a sample of 19.3 +/- 0.7 pb(-1) accumulated by the Collider Detector at Fermilab. The cross section is measured in the central rapidity region \y\ < 1 for p(T)(B) > 6.0 GeV/c by fully reconstructing the B meson decays B+ --> J/psi K+ and B-0 --> J/psi K-*0(899), where J/psi --> mu(+)mu(-) and K-*0 --> K(+)pi(-). A comparison is made to the theoretical QCD prediction calculated at next-to-leading order. C1 ARGONNE NATL LAB,ARGONNE,IL 60439. UNIV BOLOGNA,IST NAZL FIS NUCL,I-40126 BOLOGNA,ITALY. BRANDEIS UNIV,WALTHAM,MA 02254. UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024. UNIV CHICAGO,CHICAGO,IL 60637. DUKE UNIV,DURHAM,NC 27708. FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. IST NAZL FIS NUCL,LAB NAZL FRASCATI,I-00044 FRASCATI,ITALY. HARVARD UNIV,CAMBRIDGE,MA 02138. UNIV ILLINOIS,URBANA,IL 61801. MCGILL UNIV,INST PARTICLE PHYS,MONTREAL,PQ H3A 2T8,CANADA. UNIV TORONTO,TORONTO,ON M5S 1A7,CANADA. JOHNS HOPKINS UNIV,BALTIMORE,MD 21218. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. MIT,CAMBRIDGE,MA 02139. UNIV MICHIGAN,ANN ARBOR,MI 48109. MICHIGAN STATE UNIV,E LANSING,MI 48824. UNIV NEW MEXICO,ALBUQUERQUE,NM 87131. OSAKA CITY UNIV,OSAKA 588,JAPAN. UNIV PADUA,IST NAZL FIS NUCL,PADUA SEZ,I-35131 PADUA,ITALY. UNIV PENN,PHILADELPHIA,PA 19104. UNIV PITTSBURGH,PITTSBURGH,PA 15260. UNIV PISA,IST NAZL FIS NUCL,I-56100 PISA,ITALY. SCUOLA NORMALE SUPER PISA,I-56100 PISA,ITALY. PURDUE UNIV,W LAFAYETTE,IN 47907. UNIV ROCHESTER,ROCHESTER,NY 14627. ROCKEFELLER UNIV,NEW YORK,NY 10021. RUTGERS STATE UNIV,PISCATAWAY,NJ 08854. ACAD SINICA,TAIPEI 11529,TAIWAN. SUPERCONDUCTING SUPER COLLIDER LAB,DALLAS,TX 75237. TEXAS A&M UNIV,COLLEGE STN,TX 77843. TEXAS TECH UNIV,LUBBOCK,TX 79409. UNIV TSUKUBA,TSUKUBA,IBARAKI 305,JAPAN. TUFTS UNIV,MEDFORD,MA 02155. UNIV WISCONSIN,MADISON,WI 53706. YALE UNIV,NEW HAVEN,CT 06511. RP ABE, F (reprint author), KEK NAT LAB HIGH ENERGY PHYS,TSUKUBA,IBARAKI 305,JAPAN. RI Vucinic, Dejan/C-2406-2008; Chiarelli, Giorgio/E-8953-2012; Azzi, Patrizia/H-5404-2012; Punzi, Giovanni/J-4947-2012; Warburton, Andreas/N-8028-2013; Kim, Soo-Bong/B-7061-2014; Paulini, Manfred/N-7794-2014 OI Chiarelli, Giorgio/0000-0001-9851-4816; Azzi, Patrizia/0000-0002-3129-828X; Punzi, Giovanni/0000-0002-8346-9052; Warburton, Andreas/0000-0002-2298-7315; Paulini, Manfred/0000-0002-6714-5787 NR 28 TC 135 Z9 134 U1 0 U2 4 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. 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DENISOV, D DENISOV, SP DHARMARATNA, W DIEHL, HT DIESBURG, M DILORETO, G DIXON, R DRAPER, P DRINKARD, J DUCROS, Y DUGAD, SR DURSTONJOHNSON, S EDMUNDS, D ELLISON, J ELVIRA, VD ENGELMANN, R ENO, S EPPLEY, G ERMOLOV, P EROSHIN, OV EVDOKIMOV, VN FAHEY, S FAHLAND, T FATYGA, M FATYGA, MK FEATHERLY, J FEHER, S FEIN, D FERBEL, T FINOCCHIARO, G FISK, HE FISYAK, Y FLATTUM, E FORDEN, GE FORTNER, M FRAME, KC FRANZINI, P FUESS, S GALJAEV, AN GALLAS, E GAO, CS GAO, S GELD, TL GENIK, RJ GENSER, K GERBER, CE GIBBARD, B GLEBOV, V GLENN, S GOBBI, B GOFORTH, M GOLDSCHMIDT, A GOMEZ, B GONCHAROV, PI GORDON, H GOSS, LT GRAF, N GRANNIS, PD GREEN, DR GREEN, J GREENLEE, H GRIFFIN, G GROSSMAN, N GRUDBERG, P GRUNENDAHL, S GU, W GUIDA, JA GUIDA, JM GURYN, W GURZHIEV, SN GUTNIKOV, YE HADLEY, NJ HAGGERTY, H HAGOPIAN, S HAGOPIAN, V HAHN, KS HALL, RE HANSEN, S HATCHER, R HAUPTMAN, JM HEDIN, D HEINSON, AP HEINTZ, U HERNANDEZMONTOYA, R HEURING, T HIROSKY, R HOBBS, JD HOENEISEN, B HOFTUN, JS HSIEH, F HU, T HU, T HUEHN, T IGARASHI, S ITO, AS JAMES, E JAQUES, J JERGER, SA JIANG, JZY JOFFEMINOR, T JOHARI, H JOHNS, K JOHNSON, M JOHNSTAD, H JONCKHEERE, A JONES, M JOSTLEIN, H JUN, SY JUNG, CK KAHN, S KANG, JS KEHOE, R KELLY, ML KERNAN, A KERTH, L KIM, CL KIM, SK KLATCHKO, A KLIMA, B KLOCHKOV, BI KLOPFENSTEIN, C KLYUKHIN, VI KOCHETKOV, VI KOHLI, JM KOLTICK, D KOSTRITSKIY, AV KOTCHER, J KOURLAS, J KOZELOV, AV KOZLOVSKI, EA KRISHNASWAMY, MR KRZYWDZINSKI, S KUNORI, S LAMI, S LANDSBERG, G LANOU, RE LEBRAT, JF LEFLAT, A LI, H LI, J LI, YK LIDEMARTEAU, QZ LIMA, JGR LINCOLN, D LINN, SL LINNEMANN, J LIPTON, R LIU, YC LOBKOWICZ, F LOKEN, SC LOKOS, S LUEKING, L LYON, AL MACIEL, AKA MADARAS, RJ MADDEN, R MANDRICHENKO, IV MANGEOT, P MANI, S MANSOULIE, B MAO, HS MARGULIES, S MARKELOFF, R MARKOSKY, L MARSHALL, T MARTIN, MI MARX, M MAY, B MAYOROV, AA MCCARTHY, R MCKIBBEN, T MCKINLEY, J MELANSON, HL DEMELLONETO, JRT MERRITT, KW MIETTINEN, H MILDER, A MINCER, A DEMIRANDA, JM MISHRA, CS MOHAMMADIBAARMAND, M MOKHOV, N MONDAL, NK MONTGOMERY, HE MOONEY, P MUDAN, M MURPHY, C MURPHY, CT NANG, F NARAIN, M NARASIMHAM, VS NARAYANAN, A NEAL, HA NEGRET, JP NEIS, E NEMETHY, P NESIC, D NORMAN, D OESCH, L OGURI, V OLTMAN, E OSHIMA, N OWEN, D PADLEY, P PANG, M PARA, A PARK, CH PARK, YM PARTRIDGE, R PARUA, N PATERNO, M PERKINS, J PERYSHKIN, A PETERS, M PIEKARZ, H PISCHALNIKOV, Y PLUQUET, A PODSTAVKOV, VM POPE, BG PROSPER, HB PROTOPOPESCU, S PUSELJIC, D QIAN, J QUINTAS, PZ RAJA, R RAJAGOPALAN, S RAMIREZ, O RAO, MVS RAPIDIS, PA RASMUSSEN, L READ, AL REUCROFT, S RIJSSENBEEK, M ROCKWELL, T ROE, NA RUBINOV, P RUCHTI, R RUSIN, S RUTHERFOORD, J SANTORO, A SAWYER, L SCHAMBERGER, RD SCHELLMAN, H SCULLI, J SHABALINA, E SHAFFER, C SHANKAR, HC SHIVPURI, RK SHUPE, M SINGH, JB SIROTENKO, V SMART, W SMITH, A SMITH, RP SNIHUR, R SNOW, GR SNYDER, S SOLOMON, J SOOD, PM SOSEBEE, M SOUZA, M SPADAFORA, AL STEPHENS, RW STEVENSON, ML STEWART, D STOIANOVA, DA STOKER, D STREETS, K STROVINK, M TAKETANI, A TAMBURELLO, P TARAZI, J TARTAGLIA, M TAYLOR, TL TEIGER, J THOMPSON, J TRIPPE, TG TUTS, PM VARELAS, N VARNES, EW VIRADOR, PRG VITITOE, D VOLKOV, AA VOROBIEV, AP WAHL, HD WANG, J WANG, LZ WARCHOL, J WAYNE, M WEERTS, H WENZEL, WA WHITE, A WHITE, JT WIGHTMAN, JA WILCOX, J WILLIS, S WIMPENNY, SJ WIRJAWAN, JVD WOMERSLEY, J WON, E WOOD, DR XU, H YAMADA, R YAMIN, P YANAGISAWA, C YANG, J YASUDA, T YOSHIKAWA, C YOUSSEF, S YU, J YU, Y ZHANG, Y ZHOU, YH ZHU, Q ZHU, YS ZHU, ZJ ZIEMINSKA, D ZIEMINSKI, Z ZYLBERSTEJN, A AF ABACHI, S ABBOTT, B ABOLINS, M ACHARYA, BS ADAM, I ADAMS, DL ADAMS, M AHN, S AIHARA, H ALITTI, J ALVAREZ, G ALVES, GA AMIDI, E AMOS, N ANDERSON, EW ARONSON, SH ASTUR, R AVERY, RE BADEN, A BALAMURALI, V BALDERSTON, J BALDIN, B BANTLY, J BARTLETT, JF BAZIZI, K BENDICH, J BERI, SB BERTRAM, I BEZZUBOV, VA BHAT, PC BHATNAGAR, V BHATTACHARJEE, M BISCHOFF, A BISWAS, N BLAZEY, G BLESSING, S BLOOM, P BOEHNLEIN, A BOJKO, NI BORCHERDING, F BORDERS, J BOSWELL, C BRANDT, A BROCK, R BROSS, A BUCHHOLZ, D BURTOVOI, VS BUTLER, JM CASEY, D CASTILLAVALDEZ, H CHAKRABORTY, D CHANG, SM CHEKULAEV, SV CHEN, LP CHEN, W CHEVALIER, L CHOPRA, S CHOUDHARY, BC CHRISTENSON, JH CHUNG, M CLAES, D CLARK, AR COBAU, WG COCHRAN, J COOPER, WE CRETSINGER, C CULLENVIDAL, D CUMMINGS, MAC CUTTS, D DAHL, OI DE, K DEMARTEAU, M DEMINA, R DENISENKO, K DENISENKO, N DENISOV, D DENISOV, SP DHARMARATNA, W DIEHL, HT DIESBURG, M DILORETO, G DIXON, R DRAPER, P DRINKARD, J DUCROS, Y DUGAD, SR DURSTONJOHNSON, S EDMUNDS, D ELLISON, J ELVIRA, VD ENGELMANN, R ENO, S EPPLEY, G ERMOLOV, P EROSHIN, OV EVDOKIMOV, VN FAHEY, S FAHLAND, T FATYGA, M FATYGA, MK FEATHERLY, J FEHER, S FEIN, D FERBEL, T FINOCCHIARO, G FISK, HE FISYAK, Y FLATTUM, E FORDEN, GE FORTNER, M FRAME, KC FRANZINI, P FUESS, S GALJAEV, AN GALLAS, E GAO, CS GAO, S GELD, TL GENIK, RJ GENSER, K GERBER, CE GIBBARD, B GLEBOV, V GLENN, S GOBBI, B GOFORTH, M GOLDSCHMIDT, A GOMEZ, B GONCHAROV, PI GORDON, H GOSS, LT GRAF, N GRANNIS, PD GREEN, DR GREEN, J GREENLEE, H GRIFFIN, G GROSSMAN, N GRUDBERG, P GRUNENDAHL, S GU, W GUIDA, JA GUIDA, JM GURYN, W GURZHIEV, SN GUTNIKOV, YE HADLEY, NJ HAGGERTY, H HAGOPIAN, S HAGOPIAN, V HAHN, KS HALL, RE HANSEN, S HATCHER, R HAUPTMAN, JM HEDIN, D HEINSON, AP HEINTZ, U HERNANDEZMONTOYA, R HEURING, T HIROSKY, R HOBBS, JD HOENEISEN, B HOFTUN, JS HSIEH, F HU, T HU, T HUEHN, T IGARASHI, S ITO, AS JAMES, E JAQUES, J JERGER, SA JIANG, JZY JOFFEMINOR, T JOHARI, H JOHNS, K JOHNSON, M JOHNSTAD, H JONCKHEERE, A JONES, M JOSTLEIN, H JUN, SY JUNG, CK KAHN, S KANG, JS KEHOE, R KELLY, ML KERNAN, A KERTH, L KIM, CL KIM, SK KLATCHKO, A KLIMA, B KLOCHKOV, BI KLOPFENSTEIN, C KLYUKHIN, VI KOCHETKOV, VI KOHLI, JM KOLTICK, D KOSTRITSKIY, AV KOTCHER, J KOURLAS, J KOZELOV, AV KOZLOVSKI, EA KRISHNASWAMY, MR KRZYWDZINSKI, S KUNORI, S LAMI, S LANDSBERG, G LANOU, RE LEBRAT, JF LEFLAT, A LI, H LI, J LI, YK LIDEMARTEAU, QZ LIMA, JGR LINCOLN, D LINN, SL LINNEMANN, J LIPTON, R LIU, YC LOBKOWICZ, F LOKEN, SC LOKOS, S LUEKING, L LYON, AL MACIEL, AKA MADARAS, RJ MADDEN, R MANDRICHENKO, IV MANGEOT, P MANI, S MANSOULIE, B MAO, HS MARGULIES, S MARKELOFF, R MARKOSKY, L MARSHALL, T MARTIN, MI MARX, M MAY, B MAYOROV, AA MCCARTHY, R MCKIBBEN, T MCKINLEY, J MELANSON, HL DEMELLONETO, JRT MERRITT, KW MIETTINEN, H MILDER, A MINCER, A DEMIRANDA, JM MISHRA, CS MOHAMMADIBAARMAND, M MOKHOV, N MONDAL, NK MONTGOMERY, HE MOONEY, P MUDAN, M MURPHY, C MURPHY, CT NANG, F NARAIN, M NARASIMHAM, VS NARAYANAN, A NEAL, HA NEGRET, JP NEIS, E NEMETHY, P NESIC, D NORMAN, D OESCH, L OGURI, V OLTMAN, E OSHIMA, N OWEN, D PADLEY, P PANG, M PARA, A PARK, CH PARK, YM PARTRIDGE, R PARUA, N PATERNO, M PERKINS, J PERYSHKIN, A PETERS, M PIEKARZ, H PISCHALNIKOV, Y PLUQUET, A PODSTAVKOV, VM POPE, BG PROSPER, HB PROTOPOPESCU, S PUSELJIC, D QIAN, J QUINTAS, PZ RAJA, R RAJAGOPALAN, S RAMIREZ, O RAO, MVS RAPIDIS, PA RASMUSSEN, L READ, AL REUCROFT, S RIJSSENBEEK, M ROCKWELL, T ROE, NA RUBINOV, P RUCHTI, R RUSIN, S RUTHERFOORD, J SANTORO, A SAWYER, L SCHAMBERGER, RD SCHELLMAN, H SCULLI, J SHABALINA, E SHAFFER, C SHANKAR, HC SHIVPURI, RK SHUPE, M SINGH, JB SIROTENKO, V SMART, W SMITH, A SMITH, RP SNIHUR, R SNOW, GR SNYDER, S SOLOMON, J SOOD, PM SOSEBEE, M SOUZA, M SPADAFORA, AL STEPHENS, RW STEVENSON, ML STEWART, D STOIANOVA, DA STOKER, D STREETS, K STROVINK, M TAKETANI, A TAMBURELLO, P TARAZI, J TARTAGLIA, M TAYLOR, TL TEIGER, J THOMPSON, J TRIPPE, TG TUTS, PM VARELAS, N VARNES, EW VIRADOR, PRG VITITOE, D VOLKOV, AA VOROBIEV, AP WAHL, HD WANG, J WANG, LZ WARCHOL, J WAYNE, M WEERTS, H WENZEL, WA WHITE, A WHITE, JT WIGHTMAN, JA WILCOX, J WILLIS, S WIMPENNY, SJ WIRJAWAN, JVD WOMERSLEY, J WON, E WOOD, DR XU, H YAMADA, R YAMIN, P YANAGISAWA, C YANG, J YASUDA, T YOSHIKAWA, C YOUSSEF, S YU, J YU, Y ZHANG, Y ZHOU, YH ZHU, Q ZHU, YS ZHU, ZJ ZIEMINSKA, D ZIEMINSKI, Z ZYLBERSTEJN, A TI W-BOSON AND Z-BOSON PRODUCTION IN P(P)OVER-BAR COLLISIONS AT ROOT-S=1.8 TEV SO PHYSICAL REVIEW LETTERS LA English DT Article ID YAN K-FACTOR; COLLIDER AB The inclusive cross sections times leptonic branching ratios for W and Z boson production in p (p) over bar collisions at root s = 1.8 TeV were measured using the D0 detector at the Fermi-lab Tevatron collider: sigma(W)B(W --> e nu) = 2.36 +/- 0.07 +/- 0.13 nb, sigma(W)B(W --> mu nu) = 2.09 +/- 0.23 +/- 0.11 nb, sigma(Z)B(Z --> e(+)e(-)) = 0.218 +/- 0.011 +/- 0.012 nb, and sigma(Z)B(Z --> mu(+)mu(-)) = 0.178 +/- 0.030 +/- 0.009 nb. The first error is the combined statistical and systematic uncertainty, and the second reflects the uncertainty in the luminosity. For the combined electron and muon analyses we find sigma(W)B(W --> l nu)/sigma(Z)B(Z --> l(+)l(-)) = 10.90 +/- 0.49. Assuming standard model couplings, this result is used to determine the width of the W boson, Gamma(W) = 2.044 +/- 0.093 GeV. C1 UNIV LOS ANDES,BOGOTA,COLOMBIA. UNIV ARIZONA,TUCSON,AZ 85721. BROOKHAVEN NATL LAB,UPTON,NY 11973. BROWN UNIV,PROVIDENCE,RI 02912. UNIV CALIF DAVIS,DAVIS,CA 95616. UNIV CALIF IRVINE,IRVINE,CA 92717. UNIV CALIF RIVERSIDE,RIVERSIDE,CA 92521. CTR BRASILEIRO PESQUISAS FIS,LAFEX,RIO JANEIRO,BRAZIL. CTR INVEST & ESTUDIOS AVANZADOS,MEXICO CITY,DF,MEXICO. COLUMBIA UNIV,NEW YORK,NY 10027. UNIV DELHI,DELHI 110007,INDIA. FLORIDA STATE UNIV,TALLAHASSEE,FL 32306. UNIV HAWAII,HONOLULU,HI 96822. UNIV ILLINOIS,CHICAGO,IL 60607. INDIANA UNIV,BLOOMINGTON,IN 47405. IOWA STATE UNIV SCI & TECHNOL,AMES,IA 50011. KOREA UNIV,SEOUL 136701,SOUTH KOREA. KYUNGSUNG UNIV,PUSAN,SOUTH KOREA. UNIV CALIF BERKELEY,BERKELEY,CA 94720. UNIV MARYLAND,COLLEGE PK,MD 20742. UNIV MICHIGAN,ANN ARBOR,MI 48109. MICHIGAN STATE UNIV,E LANSING,MI 48824. MOSCOW MV LOMONOSOV STATE UNIV,MOSCOW,RUSSIA. UNIV NEBRASKA,LINCOLN,NE 68588. NYU,NEW YORK,NY 10003. NORTHEASTERN UNIV,BOSTON,MA 02115. NO ILLINOIS UNIV,DE KALB,IL 60115. NORTHWESTERN UNIV,EVANSTON,IL 60208. UNIV NOTRE DAME,NOTRE DAME,IN 46556. PUNJABI UNIV,CHANDIGARH 160014,INDIA. INST HIGH ENERGY PHYS,PROTVINO 142284,RUSSIA. PURDUE UNIV,W LAFAYETTE,IN 47907. RICE UNIV,HOUSTON,TX 77251. UNIV ROCHESTER,ROCHESTER,NY 14627. CEA SACLAY,DAPNIA,SERV PHYS PARTICULES,F-91191 GIF SUR YVETTE,FRANCE. SEOUL NATL UNIV,SEOUL,SOUTH KOREA. SUNY STONY BROOK,STONY BROOK,NY 11794. SUPERCONDUCTING SUPER COLLIDER LAB,DALLAS,TX 75237. TATA INST FUNDAMENTAL RES,BOMBAY 400005,MAHARASHTRA,INDIA. UNIV TEXAS,ARLINGTON,TX 76019. TEXAS A&M UNIV,COLLEGE STN,TX 77843. RP ABACHI, S (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. RI Chekulaev, Sergey/O-1145-2015; de Mello Neto, Joao/C-5822-2013; Taketani, Atsushi/E-1803-2017; Shivpuri, R K/A-5848-2010; Leflat, Alexander/D-7284-2012; Klyukhin, Vyacheslav/D-6850-2012; De, Kaushik/N-1953-2013; Oguri, Vitor/B-5403-2013; Alves, Gilvan/C-4007-2013; Kim, Sun Kee/G-2042-2015 OI de Mello Neto, Joao/0000-0002-3234-6634; Taketani, Atsushi/0000-0002-4776-2315; Klyukhin, Vyacheslav/0000-0002-8577-6531; De, Kaushik/0000-0002-5647-4489; Kim, Sun Kee/0000-0002-0013-0775 NR 24 TC 67 Z9 67 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 21 PY 1995 VL 75 IS 8 BP 1456 EP 1461 DI 10.1103/PhysRevLett.75.1456 PG 6 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300007 ER PT J AU ADAMS, MR AID, S ANTHONY, PL AVERILL, DA BAKER, MD BALLER, BR BANERJEE, A BHATTI, AA BRATZLER, U BRAUN, HM CARROLL, TJ CLARK, HL CONRAD, JM DAVISSON, R DERADO, I DHAWAN, SK DIETRICH, FS DOUGHERTY, W DREYER, T ECKARDT, V ECKER, U ERDMANN, M FANG, GY FIGIEL, J FINLAY, RW GEBAUER, HJ GEESAMAN, DF GRIFFIOEN, KA GUO, RS HAAS, J HALLIWELL, C HANTKE, D HICKS, KH HUGHES, VW JACKSON, HE JAFFE, DE JANCSO, G JANSEN, DM JIN, Z KAUFMAN, S KENNEDY, RD KINNEY, ER KOBRAK, HGE KOTWAL, AV KUNORI, S LORD, JJ LUBATTI, HJ MCLEOD, D MADDEN, P MAGILL, S MANZ, A MELANSON, H MICHAEL, DG MONTGOMERY, HE MORFIN, JG NICKERSON, RB NOVAK, J ODAY, S OLKIEWICZ, K OSBORNE, L OTTEN, R PAPAVASSILIOU, V PAWLIK, B PIPKIN, FM POTTERVELD, DH RAMBERG, EJ ROSER, A RYAN, JJ SALGADO, CW SALVARANI, A SCHELLMAN, H SCHMITT, M SCHMITZ, N SCHULER, KP SIEGERT, G SKUJA, A SNOW, GA SOLDNERREMBOLD, S SPENTZOURIS, P STIER, HE STOPA, P SWANSON, RA VENKATARAMANIA, H WILHELM, M WILSON, R WITTEK, W WOLBERS, SA ZGHICHE, A ZHAO, T AF ADAMS, MR AID, S ANTHONY, PL AVERILL, DA BAKER, MD BALLER, BR BANERJEE, A BHATTI, AA BRATZLER, U BRAUN, HM CARROLL, TJ CLARK, HL CONRAD, JM DAVISSON, R DERADO, I DHAWAN, SK DIETRICH, FS DOUGHERTY, W DREYER, T ECKARDT, V ECKER, U ERDMANN, M FANG, GY FIGIEL, J FINLAY, RW GEBAUER, HJ GEESAMAN, DF GRIFFIOEN, KA GUO, RS HAAS, J HALLIWELL, C HANTKE, D HICKS, KH HUGHES, VW JACKSON, HE JAFFE, DE JANCSO, G JANSEN, DM JIN, Z KAUFMAN, S KENNEDY, RD KINNEY, ER KOBRAK, HGE KOTWAL, AV KUNORI, S LORD, JJ LUBATTI, HJ MCLEOD, D MADDEN, P MAGILL, S MANZ, A MELANSON, H MICHAEL, DG MONTGOMERY, HE MORFIN, JG NICKERSON, RB NOVAK, J ODAY, S OLKIEWICZ, K OSBORNE, L OTTEN, R PAPAVASSILIOU, V PAWLIK, B PIPKIN, FM POTTERVELD, DH RAMBERG, EJ ROSER, A RYAN, JJ SALGADO, CW SALVARANI, A SCHELLMAN, H SCHMITT, M SCHMITZ, N SCHULER, KP SIEGERT, G SKUJA, A SNOW, GA SOLDNERREMBOLD, S SPENTZOURIS, P STIER, HE STOPA, P SWANSON, RA VENKATARAMANIA, H WILHELM, M WILSON, R WITTEK, W WOLBERS, SA ZGHICHE, A ZHAO, T TI EXTRACTION OF THE RATIO F-2(N)/F-2(P) FROM MUON-DEUTERON AND MUON-PROTON SCATTERING AT SMALL-X AND Q(2) SO PHYSICAL REVIEW LETTERS LA English DT Article ID GLOBAL ANALYSIS; CROSS-SECTIONS AB The ratio of the deuteron to proton structure functions is measured at very small Bjorken x (down to 10(-6)) and for Q(2) > 0.001 GeV2 from scattering of 470 GeV muons on liquid hydrogen and deuterium targets. The ratio F-2(n)/F-2(p) extracted from these measurements is found to be constant, at a value of 0.935 +/- 0.008 +/- 0.034, for x < 0.01. This result suggests the presence of nuclear shadowing effects in the deuteron. The dependence of the ratio on Q(2) is also examined; no significant variation is found. C1 UNIV FREIBURG,D-79106 FREIBURG,GERMANY. ARGONNE NATL LAB,ARGONNE,IL 60439. UNIV CALIF SAN DIEGO,SAN DIEGO,CA 92093. FERMILAB NATL ACCELERATOR LAB,BATAVIA,IL 60510. HARVARD UNIV,CAMBRIDGE,MA 02138. INST NUCL PHYS,KRAKOW,POLAND. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94551. UNIV MARYLAND,COLLEGE PK,MD 20742. MIT,CAMBRIDGE,MA 02139. MAX PLANCK INST PHYS & ASTROPHYS,MUNICH,GERMANY. NORTHWESTERN UNIV,EVANSTON,IL 60208. OHIO UNIV,ATHENS,OH 45701. UNIV PENN,PHILADELPHIA,PA 19104. UNIV WASHINGTON,SEATTLE,WA 98195. UNIV GESAMTHSCH WUPPERTAL,W-5600 WUPPERTAL,GERMANY. YALE UNIV,NEW HAVEN,CT 06511. RP ADAMS, MR (reprint author), UNIV ILLINOIS,CHICAGO,IL 60680, USA. RI Carroll, Timothy/B-6934-2009 NR 17 TC 49 Z9 49 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 AUG 21 PY 1995 VL 75 IS 8 BP 1466 EP 1470 DI 10.1103/PhysRevLett.75.1466 PG 5 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300009 ER PT J AU JIN, HQ BAKTASH, C BRINKMAN, MJ GROSS, CJ SARANTITES, DG LEE, IY CEDERWALL, B CRISTANCHO, F DORING, J DURHAM, FE HUA, PF JOHNS, GD KOROLIJA, M LAFOSSE, DR LANDULFO, E MACCHIAVELLI, AO RATHBUN, W SALADIN, JX STRACENER, DW TABOR, SL WERNER, TR AF JIN, HQ BAKTASH, C BRINKMAN, MJ GROSS, CJ SARANTITES, DG LEE, IY CEDERWALL, B CRISTANCHO, F DORING, J DURHAM, FE HUA, PF JOHNS, GD KOROLIJA, M LAFOSSE, DR LANDULFO, E MACCHIAVELLI, AO RATHBUN, W SALADIN, JX STRACENER, DW TABOR, SL WERNER, TR TI IDENTIFICATION AND QUADRUPOLE-MOMENT MEASUREMENT OF A SUPERDEFORMED BAND IN ZR-84 SO PHYSICAL REVIEW LETTERS LA English DT Article ID DY-152; NUCLEI AB High-spin states in Zr-84 were studied using the early implementation phase of the Gammasphere array and the ''Microball'' charged-particle detector system. A cascade of nine gamma rays with a dynamic moment of inertia which is characteristic of superdeformed rotational bands in the A = 80 region has been identified and assigned to Zr-84. The measured transition quadrupole moment of the band corresponds to a prolate quadrupole deformation of beta(2) = 0.53 and confirms the superdeformed nature of this band. This is the first direct experimental confirmation of the existence of the predicted superdeformed shell gap at N similar or equal to 44 particle number. C1 RUTGERS STATE UNIV,DEPT PHYS,NEW BRUNSWICK,NJ 08903. OAK RIDGE NATL LAB,UNISOR,OAK RIDGE,TN 37831. WASHINGTON UNIV,DEPT CHEM,ST LOUIS,MO 63130. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. UNIV PITTSBURGH,DEPT PHYS & ASTRON,PITTSBURGH,PA 15260. FLORIDA STATE UNIV,DEPT PHYS,TALLAHASSEE,FL 32306. TULANE UNIV,DEPT PHYS,NEW ORLEANS,LA 70118. UNIV TENNESSEE,DEPT PHYS & ASTRON,KNOXVILLE,TN 37996. UNIV WARSAW,INST THEORET PHYS,PL-00681 WARSAW,POLAND. RP JIN, HQ (reprint author), OAK RIDGE NATL LAB,DIV PHYS,OAK RIDGE,TN 37831, USA. RI Landulfo, Eduardo/B-7979-2012; Cederwall, Bo/M-3337-2014 OI Landulfo, Eduardo/0000-0002-9691-5306; Cederwall, Bo/0000-0003-1771-2656 NR 20 TC 44 Z9 45 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 21 PY 1995 VL 75 IS 8 BP 1471 EP 1474 DI 10.1103/PhysRevLett.75.1471 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300010 ER PT J AU MENZEL, A FRIGO, SP WHITFIELD, SB CALDWELL, CD KRAUSE, MO TANG, JZ SHIMAMURA, I AF MENZEL, A FRIGO, SP WHITFIELD, SB CALDWELL, CD KRAUSE, MO TANG, JZ SHIMAMURA, I TI DECAY PATHS OF INTERFERING 2-ELECTRON EXCITATIONS IN HELIUM SO PHYSICAL REVIEW LETTERS LA English DT Article ID DOUBLY EXCITED-STATES; ANGULAR-DISTRIBUTION; PHOTOIONIZATION; AUTOIONIZATION; CLASSIFICATION; SATELLITES; THRESHOLD; SERIES; HE AB Partial photoionization cross sections and photoelectron angular distributions of He in the region of interfering Rydberg series below the n = 5 threshold are measured and compared with theoretical results based on the hyperspherical close-coupling method. At a bandpass of 12 meV for the photon energy, this level of differentiation offers the most critical assessment of the dynamics of the two-electron excitations to date. A good understanding is achieved. C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN. RP MENZEL, A (reprint author), UNIV CENT FLORIDA,DEPT PHYS,ORLANDO,FL 32816, USA. NR 26 TC 49 Z9 49 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 21 PY 1995 VL 75 IS 8 BP 1479 EP 1482 DI 10.1103/PhysRevLett.75.1479 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300012 ER PT J AU MOSTOVYCH, AN CHAN, LY KEARNEY, KJ GARREN, D IGLESIAS, CA KLAPISCH, M ROGERS, FJ AF MOSTOVYCH, AN CHAN, LY KEARNEY, KJ GARREN, D IGLESIAS, CA KLAPISCH, M ROGERS, FJ TI OPACITY OF DENSE, COLD, AND STRONGLY COUPLED PLASMAS SO PHYSICAL REVIEW LETTERS LA English DT Article ID ABSORPTION-MEASUREMENTS; IRON; HOT AB The physics of dense [(1-5) x 10(19) cm(-3)],cold (1-15 eV), strongly coupled (Gamma similar to 0.7) plasmas is probed with 0.351, 0.527, and 1.054 mu m opacity measurements in well characterized, laser-heated, aluminum plasmas. Current opacity models are tested, for the first time, in the regime where the probing photon energies are of the same order as the average interparticle interaction energies in the plasma. Predicted enhancements of the opacity at low temperatures are not observed, but overall agreement between experiment and theory is within a factor of 2. C1 SCI APPLICAT INT CORP,MCLEAN,VA 22102. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. ARTEP INC,COLUMBIA,MD 20899. RP MOSTOVYCH, AN (reprint author), USN,RES LAB,DIV PLASMA PHYS,LASER PLASMA BRANCH,WASHINGTON,DC 20375, USA. NR 19 TC 19 Z9 21 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 AUG 21 PY 1995 VL 75 IS 8 BP 1530 EP 1533 DI 10.1103/PhysRevLett.75.1530 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300025 ER PT J AU MASLOV, S ZHANG, YC AF MASLOV, S ZHANG, YC TI EXACTLY SOLVED MODEL OF SELF-ORGANIZED CRITICALITY SO PHYSICAL REVIEW LETTERS LA English DT Article ID EVOLUTION AB We introduce and solve an anisotropic model of self-organized criticality. The exponents are tau = 4/3, D = 3/2, nu = 2, d(f) = 1/2, z = 1, and theta = 1. This model is related to one-dimensional anisotropic interface depinning in a quenched random medium. Another anisotropic interface model, different from the first one in the realization of quenched disorder, is shown numerically to belong to the same universality class as the first one. C1 BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. RP MASLOV, S (reprint author), UNIV FRIBOURG,INST PHYS THEOR,CH-1700 FRIBOURG,SWITZERLAND. RI Maslov, Sergei/C-2397-2009 OI Maslov, Sergei/0000-0002-3701-492X NR 23 TC 31 Z9 31 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 21 PY 1995 VL 75 IS 8 BP 1550 EP 1553 DI 10.1103/PhysRevLett.75.1550 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300030 ER PT J AU WILCOXON, JP MARTIN, JE ODINEK, J AF WILCOXON, JP MARTIN, JE ODINEK, J TI ANOMALOUS PHASE-SEPARATION KINETICS OBSERVED IN A MICELLE SOLUTION SO PHYSICAL REVIEW LETTERS LA English DT Article ID SPINODAL DECOMPOSITION; CRITICAL-BEHAVIOR; SYSTEM AB We report a real-time, two-dimensional light scattering study of the evolution of structure in a two-component nonionic micelle system undergoing phase separation. We find that the structure of the domains is qualitatively similar to that observed in binary fluid systems, with some anomalies observed. However, compared to the Lifshitz-Slyozov prediction for simple binary fluids, the domain growth is unexpectedly slow. In fact, the growth kinetics can be empirically described as a stretched exponential approach to a pinned domain size. This anomalous behavior may be due to the ability of the spherical micelles to reorganize into more complex structures. RP WILCOXON, JP (reprint author), SANDIA NATL LABS,DIV ADV MAT PHYS,POB 5800,MS 0345,ALBUQUERQUE,NM 87185, USA. NR 16 TC 12 Z9 12 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 AUG 21 PY 1995 VL 75 IS 8 BP 1558 EP 1561 DI 10.1103/PhysRevLett.75.1558 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300032 ER PT J AU VANSICLEN, CD AF VANSICLEN, CD TI SINGLE JUMP MECHANISMS FOR LARGE CLUSTER DIFFUSION ON METAL-SURFACES SO PHYSICAL REVIEW LETTERS LA English DT Article ID NI AB The random motion of large, two-dimensional adatom clusters and vacancy clusters over a metal surface is described by a diffusion coefficient D proportional to d(-n), where d is the diameter of the cluster and the integer n identifies the diffusion mechanism. For circular clusters, n = 3 when center-of-mass motion occurs by adatom diffusion along the periphery of the cluster, while n = 2 or 1 when cluster diffusion occurs by correlated or uncorrelated adatom evaporation and condensation, respectively. A faceted adatom cluster diffuses by evaporation and condensation of facet ledges, giving n = 0 when cluster diffusion is determined by the rate at which erosion of a ledge is initiated. RP VANSICLEN, CD (reprint author), IDAHO NATL ENGN LAB,IDAHO FALLS,ID 83415, USA. NR 14 TC 53 Z9 53 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 AUG 21 PY 1995 VL 75 IS 8 BP 1574 EP 1577 DI 10.1103/PhysRevLett.75.1574 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300036 ER PT J AU CHEN, KM JESSON, DE PENNYCOOK, SJ MOSTOLLER, M KAPLAN, T THUNDAT, T WARMACK, RJ AF CHEN, KM JESSON, DE PENNYCOOK, SJ MOSTOLLER, M KAPLAN, T THUNDAT, T WARMACK, RJ TI STEP INSTABILITIES - A NEW KINETIC ROUTE TO 3D GROWTH SO PHYSICAL REVIEW LETTERS LA English DT Article ID VICINAL SI(100); SURFACES; SI(001); GE; STRESS; SI AB Atomic force microscopy studies of Ge/Si(001) molecular beam epitaxy growth reveal a crucial new role of surface steps in the 2D to 3D transition. At or near step flow we show that S-A steps undergo a stress-driven triangular step instability. The resulting spatial variation of surface strain, although small, can dramatically influence the activation barrier for 3D island nucleation. This provides a surprising kinetic route for the onset of 3D growth associated with the apex regions of triangular steps. C1 OAK RIDGE NATL LAB,DIV HLTH SCI RES,OAK RIDGE,TN 37831. RP CHEN, KM (reprint author), OAK RIDGE NATL LAB,DIV SOLID STATE,POB 2008,OAK RIDGE,TN 37831, USA. OI Jesson, David/0000-0003-0897-1445; Warmack, Robert/0000-0001-8298-2420 NR 18 TC 34 Z9 34 U1 1 U2 6 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 AUG 21 PY 1995 VL 75 IS 8 BP 1582 EP 1585 DI 10.1103/PhysRevLett.75.1582 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300038 ER PT J AU AHRENKIEL, SP XIN, SH REIMER, PM BERRY, JJ LUO, H SHORT, S BODE, M ALJASSIM, M BUSCHERT, JR FURDYNA, JK AF AHRENKIEL, SP XIN, SH REIMER, PM BERRY, JJ LUO, H SHORT, S BODE, M ALJASSIM, M BUSCHERT, JR FURDYNA, JK TI SELF-ORGANIZED FORMATION OF COMPOSITIONALLY MODULATED ZNSE1-XTEX SUPERLATTICES SO PHYSICAL REVIEW LETTERS LA English DT Article ID STRAINED-LAYER SUPERLATTICES; MOLECULAR-BEAM EPITAXY; ALLOYS; ZNSE; ZNTE AB We report the observation of periodic compositional modulation in ZnSe1-xTex alloys grown by molecular beam epitaxy on vicinal (100) GaAs substrates. The period is highly regular, with typical values between 18 and 32 Angstrom, and is long range in character. X-ray diffraction indicates that the composition varies approximately sinusoidally, resulting in superlattices that are expected to have unique physical properties. C1 UNIV NOTRE DAME,DEPT PHYS,NOTRE DAME,IN 46556. GOSHEN COLL,TURNER PRECIS XRAY LAB,GOSHEN,IN 46526. RP AHRENKIEL, SP (reprint author), NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401, USA. NR 15 TC 48 Z9 48 U1 0 U2 2 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD AUG 21 PY 1995 VL 75 IS 8 BP 1586 EP 1589 DI 10.1103/PhysRevLett.75.1586 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300039 ER PT J AU TISCHER, M HJORTSTAM, O ARVANITIS, D DUNN, JH MAY, F BABERSCHKE, K TRYGG, J WILLS, JM JOHANSSON, B ERIKSSON, O AF TISCHER, M HJORTSTAM, O ARVANITIS, D DUNN, JH MAY, F BABERSCHKE, K TRYGG, J WILLS, JM JOHANSSON, B ERIKSSON, O TI ENHANCEMENT OF ORBITAL MAGNETISM AT SURFACES - CO ON CU(100) SO PHYSICAL REVIEW LETTERS LA English DT Article ID CIRCULAR-DICHROISM; SYSTEMS; MOMENT; BAND; SPIN; PHOTOEMISSION; FIELDS; GROWTH; ATOMS; FILMS AB By combining magnetic circular x-ray dichroism experiments with first principles electronic structure calculations, we demonstrate that the orbital contribution to magnetism can be strongly enhanced at surfaces. This effect is illustrated for Co grown on a Cu(100) surface, where the first layer of Co shows an enhancement of the orbital moment (0.26 mu(B)) by a factor of 2 as compared to the bulk. The lowering of the symmetry at the surface, the enhanced spin moment, and the increased value of the density of states at the Fermi level are factors that generally give the observed enhancements. C1 UNIV UPPSALA,DEPT PHYS,S-75121 UPPSALA,SWEDEN. LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545. RP TISCHER, M (reprint author), FREE UNIV BERLIN,INST EXPTL PHYS,ARNIMALLEE 14,D-14195 BERLIN,GERMANY. RI Eriksson, Olle/E-3265-2014 OI Eriksson, Olle/0000-0001-5111-1374 NR 34 TC 198 Z9 199 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 AUG 21 PY 1995 VL 75 IS 8 BP 1602 EP 1605 DI 10.1103/PhysRevLett.75.1602 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300043 ER PT J AU YAMADA, K WAKIMOTO, S SHRIANE, G LEE, CH KASTNER, MA HOSOYA, S GREVEN, M ENDOH, Y BIRGENEAU, RJ AF YAMADA, K WAKIMOTO, S SHRIANE, G LEE, CH KASTNER, MA HOSOYA, S GREVEN, M ENDOH, Y BIRGENEAU, RJ TI DIRECT OBSERVATION OF A MAGNETIC GAP IN SUPERCONDUCTING LA1.85SR0.15CUO4 (T-C=37.3 K) SO PHYSICAL REVIEW LETTERS LA English DT Article ID EXCITATIONS; BI2SR2CACU2O8+DELTA; ANISOTROPY; CRYSTALS AB Neutron inelastic scattering experiments have been performed on homogeneous single crystals of La1.85Sr(0.15)CuO(4) with T-c = 37.3 K (at onset), higher than any previously studied single crystals. The temperature dependence of the low energy incommensurate peak intensity at (pi(1 +/- delta), pi) and (pi, pi(1 +/- delta)) exhibits a pronounced maximum near T-c. In contrast to the results reported on lower T-c crystals, the intensity below 3.5 meV dramatically decreases as the temperature decreases below T-c, vanishing into the background below similar to 15 K. The behavior is consistent with predictions based on a d(x2-y2) superconducting order parameter. C1 BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. MIT,DEPT PHYS,CAMBRIDGE,MA 02139. YAMANASHI UNIV,FAC ENGN,INST INORGAN SYNTH,KOFU,YAMANASHI 400,JAPAN. RP YAMADA, K (reprint author), TOHOKU UNIV,DEPT PHYS,ARAMAKI AOBA,SENDAI,MIYAGI 98077,JAPAN. RI Yamada, Kazuyoshi/C-2728-2009 NR 20 TC 151 Z9 151 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 AUG 21 PY 1995 VL 75 IS 8 BP 1626 EP 1629 DI 10.1103/PhysRevLett.75.1626 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300049 ER PT J AU HAAKENAASEN, R HAU, LV GOLOVCHENKO, JA PALATHINGAL, JC PENG, JP ASOKAKUMAR, P LYNN, KG AF HAAKENAASEN, R HAU, LV GOLOVCHENKO, JA PALATHINGAL, JC PENG, JP ASOKAKUMAR, P LYNN, KG TI QUANTUM CHANNELING EFFECTS FOR 1 MEV POSITRONS SO PHYSICAL REVIEW LETTERS LA English DT Article ID RADIATION; SILICON; BEAMS AB A high resolution angular study of positrons transmitted through a thin single crystal of Si clearly reveals a detailed fine structure due to strong quantum channeling effects. The beam transmitted in the forward direction displays many features associated with dynamical diffraction effects and long coherence lengths. Calculations are presented showing that in flight annihilation of channeled positrons can serve as a solid state probe of electron and spin densities in thin crystals. C1 ROWLAND INST SCI INC,CAMBRIDGE,MA 02142. UNIV PUERTO RICO,DEPT PHYS,MAYAGUEZ,PR 00680. BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973. RP HAAKENAASEN, R (reprint author), HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138, USA. NR 19 TC 13 Z9 13 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 AUG 21 PY 1995 VL 75 IS 8 BP 1650 EP 1653 DI 10.1103/PhysRevLett.75.1650 PG 4 WC Physics, Multidisciplinary SC Physics GA RP993 UT WOS:A1995RP99300055 ER PT J AU KANDLER, T MOKLER, PH STOHLKER, T GEISSEL, H IRNICH, H KOZHUHAROV, C KRIESSBACH, A KUCHARSKI, M MUNZENBERG, G NICKEL, F RYMUZA, P SCHEIDENBERGER, C STACHURA, Z SUZUKI, T WARCZAK, A DAUVERGNE, D DUNFORD, RW AF KANDLER, T MOKLER, PH STOHLKER, T GEISSEL, H IRNICH, H KOZHUHAROV, C KRIESSBACH, A KUCHARSKI, M MUNZENBERG, G NICKEL, F RYMUZA, P SCHEIDENBERGER, C STACHURA, Z SUZUKI, T WARCZAK, A DAUVERGNE, D DUNFORD, RW TI TRANSITION SELECTIVE INVESTIGATION OF THE RESONANT TRANSFER AND EXCITATION IN U90+-]C COLLISIONS SO PHYSICS LETTERS A LA English DT Article ID RELATIVISTIC HEAVY-IONS; CROSS-SECTIONS; LIGHT TARGETS; AUGER RATES; ELECTRONS; CAPTURE AB Resonant transfer and excitation in highly charged uranium ions has been investigated by applying the X-ray/particle coincidence technique. This complete detection method for the RTE process in combination with the large L-shell fine structure splitting in uranium allows, for the first time, an L-subshell differential as well as angular differential study of the excitation and radiative stabilization of different intermediate electronic states. Measured L-subshell differential cross sections for the KLL-RTE in U90+-->C collisions compare well with full relativistic calculations. For the radiative stabilization of the KL(1/2)L(3/2) intermediate states a significant anisotropy was found. C1 UNIV FRANKFURT,INST KERNPHYS,D-60486 FRANKFURT,GERMANY. JAGIELLONIAN UNIV,INST FIZKI,PL-30059 KRAKOW,POLAND. INST PROBLEMOW JADROWYCH,PL-05400 OTWOCK,POLAND. INST FIZYKI JADROWEJ,PL-31342 KRAKOW,POLAND. INST PHYS NUCL LYON,F-69622 VILLEURBANNE,FRANCE. ARGONNE NATL LAB,DIV PHYS,ARGONNE,IL 60439. RP KANDLER, T (reprint author), GESELL SCHWERIONENFORSCH MBH,D-64220 DARMSTADT,GERMANY. NR 27 TC 23 Z9 23 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0375-9601 J9 PHYS LETT A JI Phys. Lett. A PD AUG 21 PY 1995 VL 204 IS 3-4 BP 274 EP 280 DI 10.1016/0375-9601(95)00477-K PG 7 WC Physics, Multidisciplinary SC Physics GA RQ737 UT WOS:A1995RQ73700017 ER PT J AU CODY, GD BOTTO, RE ADE, H WIRICK, S AF CODY, GD BOTTO, RE ADE, H WIRICK, S TI SOFT-X-RAY MICROANALYSIS AND MICROSCOPY - A UNIQUE PROBE OF THE ORGANIC-CHEMISTRY OF HETEROGENEOUS SOLIDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. N CAROLINA STATE UNIV,DEPT PHYS,RALEIGH,NC 27695. SUNY STONY BROOK,DEPT PHYS,STONY BROOK,NY 11794. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 1 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601700 ER PT J AU CLARK, SB CHOPPIN, GR AF CLARK, SB CHOPPIN, GR TI A COMPARISON OF F-ELEMENT DISSOCIATION KINETICS FROM SYNTHETIC POLYELECTROLYTES AND HUMIC-ACID SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV GEORGIA,SAVANNAH RIVER ECOL LAB,AIKEN,SC 29802. FLORIDA STATE UNIV,DEPT CHEM,TALLAHASSEE,FL 32306. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 2 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601967 ER PT J AU HALL, PJ ANTXUSTEGI, MM CALOT, JM THIYAGARAJAN, P AF HALL, PJ ANTXUSTEGI, MM CALOT, JM THIYAGARAJAN, P TI THE DEVELOPMENT OF POROSITY IN PITTSBURGH =8 CHAR AS STUDIED USING CONTRAST MATCHING SMALL-ANGLE NEUTRON-SCATTERING SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV IPNS,ARGONNE,IL 60439. BROWN UNIV,DIV ENGN,PROVIDENCE,RI 02912. UNIV STRATHCLYDE,DEPT PURE & APPL CHEM,GLASGOW G1 1XL,SCOTLAND. RI Hall, Peter/F-6948-2010 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 2 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601701 ER PT J AU NASH, KL MORSS, LR APPELMAN, EH JENSEN, MP SCHMIDT, MA AF NASH, KL MORSS, LR APPELMAN, EH JENSEN, MP SCHMIDT, MA TI IMMOBILIZATION OF ACTINIDES IN GEOMEDIA BY PHOSPHATE MINERALIZATION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 3 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601968 ER PT J AU REYNOLDS, JG AF REYNOLDS, JG TI METALS AND HETEROATOMS IN PETROLEUM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 3 EP PETR PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900813 ER PT J AU THIYAGARAJAN, P CODY, GD WINANS, RE AF THIYAGARAJAN, P CODY, GD WINANS, RE TI SMALL-ANGLE NEUTRON-SCATTERING OF UNTREATED AND O-METHYLATED PYRIDINE EXTRACTED COAL MACROMOLECULES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV INTENSE PULSED NEUTRON SCATTERING,ARGONNE,IL 60439. ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 3 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601702 ER PT J AU ZHONG, CJ MCDERMOTT, CA GREEN, JB MCDERMOTT, MT AF ZHONG, CJ MCDERMOTT, CA GREEN, JB MCDERMOTT, MT TI IMPARTING MEMBRANE FUNCTIONALITY AT GOLD ELECTRODES USING SPONTANEOUSLY ADSORBED MONOLAYERS OR HOW TO MAKE MODEL INTERFACIAL SYSTEMS AS COMPLEX AS THE SURFACE OF CARBON ELECTRODES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,AMES LAB,CTR MICROANALYT INSTRUMENTAT,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RI Zhong, Chuan-Jian/D-3394-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 3 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600352 ER PT J AU SIEGEL, RW AF SIEGEL, RW TI NANOSTRUCTURES - AN OVERVIEW SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 MAX PLANCK INST MIKROSTRUKT PHYS,HALLE,GERMANY. ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 5 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900928 ER PT J AU GAFFNEY, JS MARLEY, NA ORLANDINI, KA AF GAFFNEY, JS MARLEY, NA ORLANDINI, KA TI THE USE OF HOLLOW-FIBER ULTRAFILTERS FOR THE ISOLATION OF NATURAL HUMIC AND FULVIC-ACIDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ENVIRONM RES DIV,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 6 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601971 ER PT J AU SMITH, NV AF SMITH, NV TI PROGRESS AND OPPORTUNITIES AT THE ADVANCED LIGHT-SOURCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 6 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900262 ER PT J AU DEHMER, JL AF DEHMER, JL TI FRONTIERS OF X-RAY RESEARCH AT THE ADVANCED PHOTON SOURCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 7 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900263 ER PT J AU KOUZES, RT AF KOUZES, RT TI THE NATIONAL ENVIRONMENTAL MOLECULAR SCIENCES COLLABORATORY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 8 EP CINF PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600927 ER PT J AU BLOOMQUIST, CAA DYRKACZ, GR RUSCIC, L STACK, E AF BLOOMQUIST, CAA DYRKACZ, GR RUSCIC, L STACK, E TI DENSITY GRADIENT SEPARATIONS - A 90S PERSPECTIVE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. UNIV S CAROLINA,DEPT GEOL,COLUMBIA,SC 29208. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 9 EP TECH PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601004 ER PT J AU MIRZADEH, S PACKARD, AB AF MIRZADEH, S PACKARD, AB TI SYNTHESIS OF AZT-PT(TERPY) - A POTENTIAL COMPOUND FOR RADIOTHERAPY OF AIDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,NUCL MED GRP,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 9 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900265 ER PT J AU SCHUR, A AF SCHUR, A TI USING COLLABORATIVE TECHNOLOGIES FOR SCIENTIFIC-RESEARCH - SOME PILOT-STUDY EXPERIENCES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, DEPT INFORMAT & ENGN SCI, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 9 EP CINF PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600928 ER PT J AU GORDON, PL THOMPSON, JA SAUER, NN KINKEAD, SA AF GORDON, PL THOMPSON, JA SAUER, NN KINKEAD, SA TI OXIDATIVE DISSOLUTION OF LANTHANIDE AND ACTINIDE METALS USING HALOGENS AND 2-PROPANOL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,DIV CHEM SCI & TECHNOL,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 10 EP TECH PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601005 ER PT J AU SMITH, DH JOHNSON, GK AF SMITH, DH JOHNSON, GK TI TEMPERATURE-DEPENDENCE OF EMULSION MORPHOLOGIES AND THE DISPERSION MORPHOLOGY DIAGRAM FOR 3-PHASE EMULSIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,MORGANTOWN ENERGY TECHNOL CTR,MORGANTOWN,WV 26507. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 12 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601058 ER PT J AU SRIVASTAVA, R MCILVRIED, HG GRAY, D KLUNDER, EB AF SRIVASTAVA, R MCILVRIED, HG GRAY, D KLUNDER, EB TI RATIONALE FOR CONTINUING R-AND-D IN DIRECT COAL CONVERSION TO PRODUCE HIGH-QUALITY TRANSPORTATION FUELS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BURNS & ROE SERV CO,PITTSBURGH,PA 15237. US DOE,WASHINGTON,DC 20545. MITRE CORP,BEDFORD,MA 01730. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 12 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601712 ER PT J AU BRAINARD, JR SOMMERVILLE, L AF BRAINARD, JR SOMMERVILLE, L TI DEMONSTRATION OF MICROBIAL METAL REDUCTION FOR SEPARATION AND RECOVERY OF METAL CONTAMINANTS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,DIV CHEM SCI & TECHNOL,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 14 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600538 ER PT J AU SIEGEL, RW AF SIEGEL, RW TI WHAT CAN CHEMISTS DO FOR NANOSTRUCTURED MATERIALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 MAX PLANCK INST MIKROSTRUKTURPHYS,HALLE,GERMANY. ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 14 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901486 ER PT J AU TINOCO, I CHEN, X KANG, H SHEN, LX AF TINOCO, I CHEN, X KANG, H SHEN, LX TI STRUCTURES AND FRAMESHIFTING EFFICIENCIES OF RNA PSEUDOKNOTS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,DIV STRUCT BIOL,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 14 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900936 ER PT J AU CRAMER, SP CHRISTIANSEN, J PENG, G YOUNG, AT LACROIX, L AF CRAMER, SP CHRISTIANSEN, J PENG, G YOUNG, AT LACROIX, L TI X-RAY MAGNETIC CIRCULAR-DICHROISM OF COPPER PLASTOCYANIN AT TEMPERATURES LESS-THAN-1K SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV CALIF DAVIS,DAVIS,CA 95616. STANFORD UNIV,STANFORD,CA 94305. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 15 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900271 ER PT J AU DODGE, CJ FRANCIS, AJ CLAYTON, CR AF DODGE, CJ FRANCIS, AJ CLAYTON, CR TI X-RAY SPECTROSCOPIC STUDIES OF URANIUM TRANSFORMATIONS IN MICROBIAL CULTURES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. SUNY STONY BROOK,DEPT MAT SCI,STONY BROOK,NY 11794. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 16 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900272 ER PT J AU MARLEY, NA GAFFNEY, JS ORLANDINI, KA AF MARLEY, NA GAFFNEY, JS ORLANDINI, KA TI CHARACTERIZATION OF AQUATIC HUMIC AND FULVIC MATERIALS BY CYLINDRICAL INTERNAL REFLECTANCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ENVIRONM RES DIV,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 16 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601981 ER PT J AU CHEN, LX WASIELEWSKI, MR SVEC, WA HUANG, K MONTANO, PA NORRIS, JR AF CHEN, LX WASIELEWSKI, MR SVEC, WA HUANG, K MONTANO, PA NORRIS, JR TI X-RAY-ABSORPTION STUDIES OF MODEL COMPOUNDS FOR PHOTOSYNTHESIS - BISCHLOROPHYLL CYCLOPHANE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. RI Wasielewski, Michael/K-5888-2016 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 17 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900273 ER PT J AU FRANZ, JA AF FRANZ, JA TI A THEORETICAL-STUDY OF HYDROGEN-ATOM TRANSFER BETWEEN FREE-RADICALS AND CLOSED-SHELL MOLECULES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 17 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900939 ER PT J AU ANDREWS, JC CINCO, R DAU, H LATIMER, MJ LIANG, W ROELOFS, TA ROMPEL, A SAUER, K YACHANDRA, VK KLEIN, MP AF ANDREWS, JC CINCO, R DAU, H LATIMER, MJ LIANG, W ROELOFS, TA ROMPEL, A SAUER, K YACHANDRA, VK KLEIN, MP TI A STRUCTURAL MODEL FOR THE PHOTOSYNTHETIC OXYGEN-EVOLVING MANGANESE CLUSTER SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV STRUCT BIOL,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 18 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900274 ER PT J AU KLINGLER, RJ RATHKE, JW AF KLINGLER, RJ RATHKE, JW TI APPLICATIONS OF TOROIDS IN HIGH-PRESSURE NMR-SPECTROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM TECHNOL,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 18 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601718 ER PT J AU SWEET, RM AF SWEET, RM TI RECENT ADVANCES IN THE USE OF SYNCHROTRON-RADIATION FOR PROTEIN CRYSTALLOGRAPHY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,DEPT BIOL,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 19 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900275 ER PT J AU HAGAMAN, EW AF HAGAMAN, EW TI THE CHARACTERIZATION OF FLUORINATED GRAPHITES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 21 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601721 ER PT J AU BORKOWSKY, SL BROWN, G FENG, SG GROSS, M LELACHEUR, RM MORGENSTERN, DA MORITA, DK BUELOW, S BURNS, CJ BURK, MJ WAYMOUTH, RM TUMAS, W AF BORKOWSKY, SL BROWN, G FENG, SG GROSS, M LELACHEUR, RM MORGENSTERN, DA MORITA, DK BUELOW, S BURNS, CJ BURK, MJ WAYMOUTH, RM TUMAS, W TI SUPERCRITICAL FLUIDS AS SUBSTITUTE SOLVENTS IN CATALYTIC PROCESSES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 22 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601986 ER PT J AU TANG, JN FUNG, KH AF TANG, JN FUNG, KH TI A STUDY OF PHASE-TRANSFORMATIONS IN HYGROSCOPIC AEROSOLS BY RAMAN-SPECTROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,DEPT APPL SCI,DIV ENVIRONM CHEM,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 22 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601452 ER PT J AU SMITH, JR AF SMITH, JR TI RADIOLYSIS GASES FROM NITRIC-ACID SOLUTIONS CONTAINING HSA AND HAN SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER TECHNOL CTR,AIKEN,SC 29802. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 23 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900279 ER PT J AU SMITH, JR CAVIN, WS AF SMITH, JR CAVIN, WS TI ISOTHERMAL HEAT MEASUREMENTS OF TBP NITRIC-ACID SOLUTIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 WESTINGHOUSE SAVANNAH RIVER CO,SAVANNAH RIVER TECHNOL CTR,AIKEN,SC 29802. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 25 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900281 ER PT J AU WHITTEN, WB MO, Y REILLY, PTA RAMSEY, JM AF WHITTEN, WB MO, Y REILLY, PTA RAMSEY, JM TI ION-TRAP MASS-SPECTROSCOPY OF INDIVIDUAL AEROSOL-PARTICLES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 25 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601455 ER PT J AU CHAN, CK EATON, WA HAGEN, SJ HENRY, ER HOFRICHTER, J HU, Y THOMPSON, PA AF CHAN, CK EATON, WA HAGEN, SJ HENRY, ER HOFRICHTER, J HU, Y THOMPSON, PA TI FAST EVENTS IN PROTEIN-FOLDING SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,CHEM PHYS LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 26 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900947 ER PT J AU RAMAKRISHNAN, S GUTHRIE, RD DAVIS, BH BRITT, PF BUCHANAN, AC AF RAMAKRISHNAN, S GUTHRIE, RD DAVIS, BH BRITT, PF BUCHANAN, AC TI A NEW APPROACH TO IMMOBILIZATION OF COAL-MODEL COMPOUNDS ON SILICA USING A CALCIUM CARBOXYLATE LINKAGE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV KENTUCKY,DEPT CHEM,LEXINGTON,KY 40506. UNIV KENTUCKY,CTR APPL ENERGY RES,LEXINGTON,KY 40506. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 26 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601726 ER PT J AU SUITS, AG YANG, XM HSU, CW HEIMANN, P NG, CY WODTKE, AM LEE, YT AF SUITS, AG YANG, XM HSU, CW HEIMANN, P NG, CY WODTKE, AM LEE, YT TI THE CHEMICAL-DYNAMICS BEAMLINE AT THE ADVANCED LIGHT-SOURCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. RI Wodtke, Alec/I-4848-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 26 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900282 ER PT J AU BUCHANAN, AC BRITT, PF STRUSS, JA AF BUCHANAN, AC BRITT, PF STRUSS, JA TI IMPACT OF ORGANIC-MINERAL MATTER INTERACTIONS ON THERMAL-REACTION PATHWAYS FOR COAL MODEL COMPOUNDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALY SCI,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 27 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601727 ER PT J AU WOODRUFF, WH DYER, RB WILLIAMS, S CALLENDER, RH GILMANSHIN, R AF WOODRUFF, WH DYER, RB WILLIAMS, S CALLENDER, RH GILMANSHIN, R TI FAST STRUCTURAL-CHANGES DURING PROTEIN-FOLDING AND UNFOLDING - TIME-RESOLVED INFRARED STUDY OF APOMYOGLOBIN AND MODEL PEPTIDES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. CUNY CITY COLL,DEPT PHYS,NEW YORK,NY 10031. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 27 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900948 ER PT J AU KEMNER, KM HUNTER, DB ELAM, WT BERTSCH, PM AF KEMNER, KM HUNTER, DB ELAM, WT BERTSCH, PM TI EXTENDED X-RAY-ABSORPTION FINE-STRUCTURE STUDIES OF CS DIBENZO-18-CROWN-6 ETHER COMPLEXES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USN,RES LAB,WASHINGTON,DC 20375. SAVANNAH RIVER ECOL LAB,DIV BIOEGOCHEM,AIKEN,SC 29802. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 28 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900284 ER PT J AU MORSS, LR SCHMIDT, MAJ NASH, KL ALLEN, PG BUCHER, JJ EDELSTEIN, N SHUH, DK AF MORSS, LR SCHMIDT, MAJ NASH, KL ALLEN, PG BUCHER, JJ EDELSTEIN, N SHUH, DK TI SPECTROSCOPIC STUDIES OF LATHANIDE COORDINATION IN CRYSTALLINE AND AMORPHOUS PHOSPHATES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 29 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900285 ER PT J AU WARZINSKI, RP AF WARZINSKI, RP TI MOLYBDENUM HEXACARBONYL AS A CATALYST PRECURSOR FOR DIRECT COAL-LIQUEFACTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,PITTSBURGH ENERGY TECHNOL CTR,PITTSBURGH,PA 15236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 29 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601729 ER PT J AU ARMAND, P PRICE, DL BENO, M ELLISON, AJG KNAPP, GS SABOUNGI, ML AF ARMAND, P PRICE, DL BENO, M ELLISON, AJG KNAPP, GS SABOUNGI, ML TI LOCAL AND INTERMEDIATE-RANGE ORDER IN ALKALI GERMANATE GLASSES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. RI Price, David Long/A-8468-2013; Saboungi, Marie-Louise/C-5920-2013 OI Saboungi, Marie-Louise/0000-0002-0607-4815 NR 2 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 30 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900286 ER PT J AU HUBLER, TL HALLEN, RT AF HUBLER, TL HALLEN, RT TI STRUCTURE-FUNCTION INVESTIGATIONS OF MODIFIED PHENOL-FORMALDEHYDE AND RESORCINOL-FORMALDEHYDE ION-EXCHANGE RESINS THAT ARE SELECTIVE FOR CESIUM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 30 EP IEC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601994 ER PT J AU HUNT, JE WINANS, RE AF HUNT, JE WINANS, RE TI FOSSIL-FUEL CHARACTERIZATION USING LASER-DESORPTION MASS-SPECTROMETRY - APPLICATIONS AND LIMITATIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 31 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601731 ER PT J AU JOHNSTON, HS DAVIS, HF LEE, YT AF JOHNSTON, HS DAVIS, HF LEE, YT TI NO3 PHOTOLYSIS PRODUCT CHANNELS - QUANTUM YIELDS FROM OBSERVED ENERGY THRESHOLDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,DIV CHEM SCI,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 31 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900952 ER PT J AU OSMAN, R YAMAGUCHI, H LUO, N MIASKIEWICZ, K AF OSMAN, R YAMAGUCHI, H LUO, N MIASKIEWICZ, K TI RECOGNITION OF THYMINE DIMER CONTAINING DNA BY ENDONUCLEASE-V SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CUNY MT SINAI SCH MED, DEPT PHYSIOL & BIOPHYS, NEW YORK, NY 10029 USA. PACIFIC NW LAB, RICHLAND, WA 99352 USA. NATL INST RADIOL SCI, CHIBA 263, JAPAN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 31 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601461 ER PT J AU WINANS, RE HAAS, GW KIM, YL HUNT, JE AF WINANS, RE HAAS, GW KIM, YL HUNT, JE TI HIGH-RESOLUTION MASS-SPECTROMETRY FOR THE CHARACTERIZATION OF COMPLEX, FOSSIL ORGANIC MIXTURES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 32 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601732 ER PT J AU SICHAK, S AF SICHAK, S TI ERGONOMICS FOR CHEMISTS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 34 EP CHAS PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600917 ER PT J AU SONG, K WASSERMAN, SR AF SONG, K WASSERMAN, SR TI ENCAPSULATION OF HAZARDOUS METALS WITH ORGANIC MODIFIED MINERALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 37 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602141 ER PT J AU REICH, T DENECKE, M POMPE, S NITWSCHE, H SHUH, DK ALLEN, PG BUCHER, J EDELSTEIN, NM AF REICH, T DENECKE, M POMPE, S NITWSCHE, H SHUH, DK ALLEN, PG BUCHER, J EDELSTEIN, NM TI CHARACTERIZATION OF THE COMPLEXATION OF URANYL IONS WITH HUMIC ACIDS BY X-RAY-ABSORPTION SPECTROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 FORSCHUNGSZENTRUM ROSSENDORF EV,INST RADIOCHEM,DRESDEN,GERMANY. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 38 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900293 ER PT J AU DARAB, JG LI, H SMITH, PA AF DARAB, JG LI, H SMITH, PA TI CHEMICAL AND SPECTRAL ELUCIDATION OF MINOR COMPONENTS IN SIMULATED HANFORD LOW-LEVEL WASTE GLASSES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, CTR MAT & CHEM SCI, MAT APPLICAT SECT, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 39 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900294 ER PT J AU CHIDSEY, CED LINFORD, MR BURNHAM, S TENDER, LM SMALLEY, JF FELDBERG, SW HSUNG, RP SITA, LR AF CHIDSEY, CED LINFORD, MR BURNHAM, S TENDER, LM SMALLEY, JF FELDBERG, SW HSUNG, RP SITA, LR TI SELF-ASSEMBLED MONOLAYERS - FRAMEWORKS FOR THE STUDY OF INTERFACIAL ELECTRON-TRANSFER SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 STANFORD UNIV,DEPT CHEM,STANFORD,CA 94305. BROOKHAVEN NATL LAB,DEPT APPL SCI,UPTON,NY 11973. UNIV CHICAGO,DEPT CHEM,CHICAGO,IL 60637. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 40 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900960 ER PT J AU SANDI, G WINANS, RE CARRADO, KA AF SANDI, G WINANS, RE CARRADO, KA TI SYNTHESIS AND CHARACTERIZATION OF NEW CARBONACEOUS MATERIALS UTILIZED IN LITHIUM ION BATTERIES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 40 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600388 ER PT J AU ALLEN, PG BUCHER, JJ SIEMERING, GS SHUH, DK EDELSTEIN, NM AF ALLEN, PG BUCHER, JJ SIEMERING, GS SHUH, DK EDELSTEIN, NM TI CHARACTERIZATION OF TECHNETIUM IN CEMENT WASTE FORMS BY XAS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. LAWRENCE LIVERMORE NATL LAB,GT SEABORG INST TRANSACTINIUM SCI,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 2 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 41 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900296 ER PT J AU ARTERBURN, JA HALL, K OTT, KC AF ARTERBURN, JA HALL, K OTT, KC TI SYNTHESES OF ENANTIOMERICALLY PURE RHENIUM STEROID DERIVATIVES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NEW MEXICO STATE UNIV,DEPT CHEM & BIOCHEM,LAS CRUCES,NM 88003. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 41 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602145 ER PT J AU ARTERBURN, JA HALL, KA FOGARTY, IM GOREHAM, DM BRYAN, JC TT, KC AF ARTERBURN, JA HALL, KA FOGARTY, IM GOREHAM, DM BRYAN, JC TT, KC TI SYNTHESIS OF RHENIUM PEPTIDE COMPLEXES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NEW MEXICO STATE UNIV,DEPT CHEM & BIOCHEM,LAS CRUCES,NM 88003. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 42 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602146 ER PT J AU HUDSON, EA TERMINELLO, LJ VIANI, BE BUCHER, JJ SHUH, DK EDELSTEIN, NM DENECKE, M REICH, T AF HUDSON, EA TERMINELLO, LJ VIANI, BE BUCHER, JJ SHUH, DK EDELSTEIN, NM DENECKE, M REICH, T TI EXAFS STUDIES OF URANIUM SORPTION ON LAYER-SILICATE MINERALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. FORSCHUNGSZENTRUM ROSSENDDORF,INST RADIOCHEM,DRESDEN,GERMANY. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 42 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900297 ER PT J AU MATHIES, RA WANG, Q PETEANU, LA SCHOENLEIN, RW KOCHENDOERFER, G SHANK, CV AF MATHIES, RA WANG, Q PETEANU, LA SCHOENLEIN, RW KOCHENDOERFER, G SHANK, CV TI RHODOPSIN PHOTOCHEMISTRY IS VIBRATIONALLY COHERENT SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RI Schoenlein, Robert/D-1301-2014 OI Schoenlein, Robert/0000-0002-6066-7566 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 42 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900962 ER PT J AU ZHU, F AF ZHU, F TI HADRON-PRODUCTION IN AU+AU COLLISIONS AT AGS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 43 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900298 ER PT J AU TROTT, WM AF TROTT, WM TI INVESTIGATION OF JET FUEL THERMAL-STABILITY USING PHOTON-CORRELATION SPECTROSCOPY AND A QUARTZ-CRYSTAL MICROBALANCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 44 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601744 ER PT J AU GREEN, JBD MCDERMOTT, MT PORTER, MD SIPERKO, LM AF GREEN, JBD MCDERMOTT, MT PORTER, MD SIPERKO, LM TI NANOMETER-SCALE COMPOSITIONAL IMAGING OF ORGANIC MONOLAYER FILMS USING FRICTIONAL FORCE MICROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,AMES LAB,CTR MICROANALYT INSTRUMENTAT,ENDICOTT,NY 13760. IBM CORP,DIV MICROELECTR,ANALYT SOLUT LAB,ENDICOTT,NY 13760. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 45 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601090 ER PT J AU SCANDORA, AE JOHNSON, PL STREETS, WE VIGNOLA, PL BASS, DA LINDAHL, PC NEWBERRY, WR CARTER, MH AF SCANDORA, AE JOHNSON, PL STREETS, WE VIGNOLA, PL BASS, DA LINDAHL, PC NEWBERRY, WR CARTER, MH TI DOES IPEP ON THE INFOBAHN - ELECTRONIC DISSEMINATION OF ASSESSMENTS FROM MULTIPLE PERFORMANCE EVALUATION PROGRAMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. US DOE,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 45 EP COMP PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601320 ER PT J AU SPATES, JJ MARTIN, SJ MANSURE, AJ AF SPATES, JJ MARTIN, SJ MANSURE, AJ TI CLOUD POINT DETECTION USING A THICKNESS-SHEAR MODE RESONATOR SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 KTECH CORP INC,ALBUQUERQUE,NM 87110. SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 46 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601746 ER PT J AU LISA, MA AF LISA, MA TI RECENT RESULTS IN COLLECTIVE FLOW FROM THE EOS TPC SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 47 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900302 ER PT J AU CHAKARIAN, V AF CHAKARIAN, V TI STUDIES OF MAGNETIC-MATERIALS VIA CIRCULAR POLARIZED X-RAYS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 USN,RES LAB,BNL,NSLS,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 48 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900303 ER PT J AU SWAIN, D WINANS, R DUNN, WJ AF SWAIN, D WINANS, R DUNN, WJ TI POSITIONAL ISOMER DIFFERENTIATION OF MONOALKYLATED NAPHTHALENES USING PRINCIPAL COMPONENTS-ANALYSIS AND MASS-SPECTROMETRY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. UNIV ILLINOIS,DEPT MED CHEM & PHARMACOGNOSY,CHICAGO,IL 60612. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 48 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600396 ER PT J AU WARZINSKI, RP CUGINI, AV BOCKRATH, BC AF WARZINSKI, RP CUGINI, AV BOCKRATH, BC TI COMPARISON OF THE MEANS OF INTRODUCTION OF MOS2 LIQUEFACTION CATALYSTS ON PERFORMANCE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,PITTSBURGH ENERGY TECHNOL CTR,PITTSBURGH,PA 15236. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 49 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601750 ER PT J AU MCCARTHY, MI CHACONTAYLOR, M HESS, WP AF MCCARTHY, MI CHACONTAYLOR, M HESS, WP TI THEORETICAL INVESTIGATIONS OF THE PHYSICS AND CHEMISTRY AT ENVIRONMENTALLY IMPORTANT INTERFACES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 50 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601479 ER PT J AU NAGY, Z YOU, H AF NAGY, Z YOU, H TI RADIOLYTIC EFFECTS IN THE USE OF SYNCHROTRON X-RAY TECHNIQUES WITH AQUEOUS-SOLUTIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV MAT SCI,ARGONNE,IL 60439. ARGONNE NATL LAB,DIV CHEM TECHNOL,ARGONNE,IL 60439. RI You, Hoydoo/A-6201-2011 OI You, Hoydoo/0000-0003-2996-9483 NR 0 TC 0 Z9 0 U1 0 U2 6 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 50 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900305 ER PT J AU KIKUMA, J DENLINGER, J ROTENBERG, E TONNER, BP AF KIKUMA, J DENLINGER, J ROTENBERG, E TONNER, BP TI RESONANT PHOTOEMISSION IN POLYMERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV OREGON,EUGENE,OR 97403. UNIV WISCONSIN,MILWAUKEE,WI 53211. RI Rotenberg, Eli/B-3700-2009 OI Rotenberg, Eli/0000-0002-3979-8844 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 51 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900306 ER PT J AU REYNOLDS, JG AF REYNOLDS, JG TI COMPARISON OF CRACKING KINETICS FOR KERN-RIVER 650-DEGREES-F+ RESIDUUM AND MIDWAY-SUNSET CRUDE-OIL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 52 EP PETR PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900859 ER PT J AU TOBIN, JG GOODMAN, KW MANKEY, GJ WILLIS, RF DENLINGER, JD ROTENBERG, E WARWICK, A AF TOBIN, JG GOODMAN, KW MANKEY, GJ WILLIS, RF DENLINGER, JD ROTENBERG, E WARWICK, A TI MXLD PHOTOEMISSION AND MXCD ABSORPTION OF MAGNETIC ALLOY ULTRATHIN FILMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. PENN STATE UNIV,DEPT PHYS,UNIVERSITY PK,PA 16802. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. RI Rotenberg, Eli/B-3700-2009; Tobin, James/O-6953-2015; Mankey, Gary/G-9110-2011 OI Rotenberg, Eli/0000-0002-3979-8844; Mankey, Gary/0000-0003-3163-5159 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 52 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900307 ER PT J AU DICARLO, S JANIS, B MIGLIORATI, P AF DICARLO, S JANIS, B MIGLIORATI, P TI TENDENCY OF PETROLEUM RESIDUES TO BE PROCESSED IN VISBREAKING - A PREDICTION MODEL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. EURON SPA,I-20097 SAN DONATO MILANE,ITALY. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 53 EP PETR PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900860 ER PT J AU MINI, SM ALP, EE ROSENMANN, D KIMBALL, CW AF MINI, SM ALP, EE ROSENMANN, D KIMBALL, CW TI XANES AND MOSSBAUER ISOMER-SHIFT COMPARISONS IN IRON-OXIDES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NO ILLINOIS UNIV,DEPT PHYS,DE KALB,IL 60540. ARGONNE NATL LAB,ARGONNE,IL 60439. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 53 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900308 ER PT J AU THOMPSON, MA GLENDENING, ED FELLER, D AF THOMPSON, MA GLENDENING, ED FELLER, D TI THEORETICAL-STUDY OF ION MACROCYCLE INTERACTIONS USING BOTH HYBRID QUANTUM-MECHANICAL MOLECULAR MECHANICAL AND AB-INITIO METHODS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 53 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601482 ER PT J AU CARLISLE, JA SUTHERLAND, DGS JIMENEZ, I TERMINELLO, LJ GRUEN, DM KRAUSS, AR ZUIKER, C AF CARLISLE, JA SUTHERLAND, DGS JIMENEZ, I TERMINELLO, LJ GRUEN, DM KRAUSS, AR ZUIKER, C TI NANOCRYSTALLINE DIAMOND THIN-FILM CHARACTERIZATION USING SOFT-X-RAY ABSORPTION-SPECTROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. ARGONNE NATL LAB,ARGONNE,IL 60439. RI Jimenez, Ignacio/F-7422-2010 OI Jimenez, Ignacio/0000-0001-5605-3185 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 54 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900309 ER PT J AU RATCLIFF, MA ONISCHAK, M GRATSON, DA PATRICK, JA FRENCH, RJ WIANT, BC AF RATCLIFF, MA ONISCHAK, M GRATSON, DA PATRICK, JA FRENCH, RJ WIANT, BC TI PRODUCT ANALYSIS FROM THE OPERATION OF A 10 TON DAY DIRECT, FLUIDIZED-BED BIOMASS GASIFIER AND HGCU SYSTEM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NREL,GOLDEN,CO 80401. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 55 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601756 ER PT J AU TANG, LN BUCHANAN, MV HETTICH, RL HURST, GB AF TANG, LN BUCHANAN, MV HETTICH, RL HURST, GB TI A NOVEL INTERFACE FOR COUPLING ELECTROSPRAY WITH FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETRY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. RI Hettich, Robert/N-1458-2016 OI Hettich, Robert/0000-0001-7708-786X NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 55 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600403 ER PT J AU TONG, WM SHUH, DK JIMENEZ, I FEILER, D WILLIAMS, RS CARLISLE, JA SUTHERLAND, DGS TERMINELLO, LJ TREECE, RE HORWITZ, JS HIMPSEL, FJ AF TONG, WM SHUH, DK JIMENEZ, I FEILER, D WILLIAMS, RS CARLISLE, JA SUTHERLAND, DGS TERMINELLO, LJ TREECE, RE HORWITZ, JS HIMPSEL, FJ TI NEXAFS OF PULSED-LASER DEPOSITED BN, CNX, AND GAN FILMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. USN,RES LAB,WASHINGTON,DC 20375. IBM CORP,YORKTOWN HTS,NY 10598. RI Jimenez, Ignacio/F-7422-2010 OI Jimenez, Ignacio/0000-0001-5605-3185 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 55 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900310 ER PT J AU HUEY, SP DAVIS, KA AF HUEY, SP DAVIS, KA TI COMPARISON OF BIOMASS AND COAL CHAR REACTIVITIES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 57 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601758 ER PT J AU PEKALA, RW ALVISO, CT LU, X CAPS, R FRICKE, J AF PEKALA, RW ALVISO, CT LU, X CAPS, R FRICKE, J TI NANOSTRUCTURAL ENGINEERING OF ORGANIC AEROGELS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV WURZBURG,INST PHYS,D-97074 WURZBURG,GERMANY. LAWRENCE LIVERMORE NATL LAB,DEPT CHEM & MAT SCI,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 60 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901532 ER PT J AU STRATTON, WJ LINDBERG, SE AF STRATTON, WJ LINDBERG, SE TI MEASUREMENT OF GAS-PHASE IONIC MERCURY(II) SPECIES IN AMBIENT AIR SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 EARLHAM COLL,DEPT CHEM,RICHMOND,IN 47374. OAK RIDGE NATL LAB,DIV ENVIRONM SCI,OAK RIDGE,TN 37831. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 60 EP GEOC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601903 ER PT J AU THOMPSON, DW RONCO, SE WALLACE, AW PETERSEN, JD HSIAO, JS SCHOONOVER, JR AF THOMPSON, DW RONCO, SE WALLACE, AW PETERSEN, JD HSIAO, JS SCHOONOVER, JR TI PHOTOINDUCED ELECTRON-TRANSFER IN HETEROBIMETALLIC DONOR-ACCEPTOR COMPLEXES - LONG-LIVED CHARGE SEPARATION AND WAVELENGTH-DEPENDENT PHOTOPHYSICS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 WAYNE STATE UNIV,DEPT CHEM,DETROIT,MI 48202. LOS ALAMOS NATL LAB,BIOSCI & TECHNOL GRP,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 62 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602166 ER PT J AU COX, JL TONKOVICH, AY ELLIOTT, DC BAKER, EG AF COX, JL TONKOVICH, AY ELLIOTT, DC BAKER, EG TI INDIRECT LIQUEFACTION OF BIOMASS - A FRESH APPROACH SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 64 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601765 ER PT J AU GAKH, AA SACHLEBEN, RA BRYAN, JC MOYER, BA AF GAKH, AA SACHLEBEN, RA BRYAN, JC MOYER, BA TI TRIPTYCENOCROWN ETHERS - A NEW FAMILY OF PADDLE WHEEL MOLECULES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. RI Solominow, Sonia/A-4021-2008; Moyer, Bruce/L-2744-2016 OI Moyer, Bruce/0000-0001-7484-6277 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 64 EP ORGN PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900412 ER PT J AU BUTCHER, RJ CLARK, DL GORDON, JC SCOTT, BL WATKIN, JG AF BUTCHER, RJ CLARK, DL GORDON, JC SCOTT, BL WATKIN, JG TI SYNTHESIS AND CHARACTERIZATION OF MONO(PENTAMETHYLCYCLOPENTADIENYL) F-ELEMENT COMPLEXES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 65 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602169 ER PT J AU GE, JS JOHNSON, DC AF GE, JS JOHNSON, DC TI AMPEROMETRIC DETECTION OF ALIPHATIC-AMINES AND AMINO-ACIDS ON ANODIZED SILVER-LEAD EUTECTIC ALLOY ELECTRODES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV,DEPT CHEM,AMES,IA 50010. IOWA STATE UNIV,AMES LAB,AMES,IA 50010. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 65 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600413 ER PT J AU PAMPLIN, KL JOHNSON, DC AF PAMPLIN, KL JOHNSON, DC TI CHROMIUM MEDIATED ELECTROCHEMICAL OXIDATION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,DEPT CHEM,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 66 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600414 ER PT J AU VANBROCKLIN, HF AF VANBROCKLIN, HF TI PROBING NEURODEGENERATION AND AGING - A PET APPROACH SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 68 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900323 ER PT J AU JACOBY, WA GEBHARD, SC VOJDANI, RL YILMAZ, S COWLEY, S AF JACOBY, WA GEBHARD, SC VOJDANI, RL YILMAZ, S COWLEY, S TI LIFETIME TESTING OF CATALYSTS FOR CONDITIONING OF THE PRODUCTS OF A BIOMASS GASIFIER SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401. COLORADO SCH MINES,DEPT CHEM,GOLDEN,CO 80401. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 69 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601770 ER PT J AU GATLEY, SJ DING, YS FOWLER, JS PAN, DF LOGAN, J MACGREGOR, RR VOLKOW, ND AF GATLEY, SJ DING, YS FOWLER, JS PAN, DF LOGAN, J MACGREGOR, RR VOLKOW, ND TI PHARMACOLOGICAL FACTORS AFFECTING PET IMAGING OF COCAINE AND METHYLPHENIDATE BINDING-SITES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. BROOKHAVEN NATL LAB,DEPT MED,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 71 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900326 ER PT J AU GONG, ML AF GONG, ML TI RADIONUCLIDE ANALYSIS USING ICP-MS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, CTR WASTE TECHNOL, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 72 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600420 ER PT J AU PHAIR, LW AF PHAIR, LW TI THE REDUCIBLE AND THERMAL NATURE OF MULTIFRAGMENTATION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 73 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900328 ER PT J AU SCHWARTZ, DJ ANDERSEN, RA AF SCHWARTZ, DJ ANDERSEN, RA TI AN NMR INVESTIGATION OF THE INTERACTIONS OF CP(ASTERISK)2YB WITH TRIALKYL PHOSPHINES AND R3PX COMPLEXES [X=O, NR', CHR''] - ELUCIDATION OF A FLUXIONAL PROCESS INVOLVING A C-H-YB DELTA-INTERACTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 74 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602178 ER PT J AU ALVAREZ, RA MOORE, CB AF ALVAREZ, RA MOORE, CB TI ATMOSPHERIC PHOTOCHEMISTRY OF METHYLISOTHIOCYANIDE (MITC) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ENVIRONM DEF FUND,AUSTIN,TX 78701. UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 78 EP AGRO PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600318 ER PT J AU DING, YS FOWLER, JS GATLEY, SJ LOGAN, J VOLKOW, ND AF DING, YS FOWLER, JS GATLEY, SJ LOGAN, J VOLKOW, ND TI MECHANISTIC PET STUDIES OF F-18 LABELED CATECHOLAMINES IN LIVING BABOON HEART - SELECTIVE CONTROL OF RADIOTRACER METABOLISM USING THE DEUTERIUM-ISOTOPE EFFECT SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 79 EP NUCL PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25900334 ER PT J AU TAYLOR, CE NOCETI, RP DESTE, JP AF TAYLOR, CE NOCETI, RP DESTE, JP TI PHOTOCATALYTIC CONVERSION OF METHANE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,PITTSBURGH ENERGY TECHNOL CTR,PITTSBURGH,PA 15236. NR 0 TC 1 Z9 1 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 80 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601125 ER PT J AU VERMETTE, SJ LINDBERG, SE BLOOM, NS AF VERMETTE, SJ LINDBERG, SE BLOOM, NS TI THE MERCURY DEPOSITION NETWORK OF THE NATIONAL ATMOSPHERIC DEPOSITION PROGRAM (NADP/MDN) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SUNY BUFFALO, DEPT EARTH SCI & SCI EDUC, BUFFALO, NY 98109 USA. FRONTIER GEOSCI, SEATTLE, WA 37831 USA. OAK RIDGE NATL LAB, OAK RIDGE, TN USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 81 EP GEOC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601924 ER PT J AU HERMES, RE THOMPSON, RD VALDEZ, LS AF HERMES, RE THOMPSON, RD VALDEZ, LS TI A DIETHYL PHOSPHONATE CONTAINING OXAZOLINE - SYNTHESIS AND CHARACTERIZATION OF MONOMER AND HOMOPOLYMER SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87544. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 82 EP POLY PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901349 ER PT J AU STOHL, FV LOTT, SE DIEGERT, KV GOODNOW, DC OELFKE, JB AF STOHL, FV LOTT, SE DIEGERT, KV GOODNOW, DC OELFKE, JB TI HYDROTREATING OF COAL-DERIVED LIQUIDS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,PROC RES DEPT 6212,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 83 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601784 ER PT J AU BAXTER, LL JENKINS, BM AF BAXTER, LL JENKINS, BM TI LABORATORY ILLUSTRATIONS OF THE TRANSFORMATIONS AND DEPOSITION OF INORGANIC MATERIAL IN BIOMASS BOILERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,COMBUST RES FACIL,LIVERMORE,CA 94550. UNIV CALIF DAVIS,DEPT BIOL & AGR ENGN,DAVIS,CA 95616. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 85 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601786 ER PT J AU DAYTON, DC MILNE, TA AF DAYTON, DC MILNE, TA TI MECHANISMS OF ALKALI-METAL RELEASE DURING BIOMASS COMBUSTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL RENEWABLE ENERGY LAB,DIV IND TECHNOL,GOLDEN,CO 80401. NR 0 TC 0 Z9 0 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 87 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601788 ER PT J AU YEUNG, ES CHANG, HT LI, QB LU, XD FUNG, EN AF YEUNG, ES CHANG, HT LI, QB LU, XD FUNG, EN TI HIGH-SPEED DNA-SEQUENCING BY USING CAPILLARY ELECTROPHORESIS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RI Chang, Huan-Tsung/C-1183-2011 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 87 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600436 ER PT J AU BESLERGURAN, S AGBLEVOR, FA SCAHILL, JW AF BESLERGURAN, S AGBLEVOR, FA SCAHILL, JW TI FILTRATION EFFECTS ON THE ALKALI-METAL CONTENT OF BIOCRUDE OIL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL RENEWABLE ENERGY LAB,GOLDEN,CO. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 88 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601789 ER PT J AU BUELOW, SJ FOY, BR DELLORCO, PC ROBINSON, JM AF BUELOW, SJ FOY, BR DELLORCO, PC ROBINSON, JM TI HYDROTHERMAL REACTIONS OF NITRATES AND ORGANICS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 91 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901007 ER PT J AU ROSENTRETER, JJ GERING, K BENNER, B BUNDE, RL AF ROSENTRETER, JJ GERING, K BENNER, B BUNDE, RL TI PHOTO-CATALYTIC TREATMENT OF ANIONIC CYANIDE WASTES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOCKHEED IDAHO TECH CO,IDAHO FALLS,ID 83415. IDAHO STATE UNIV,DEPT CHEM,POCATELLO,ID 83209. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 91 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601520 ER PT J AU LIVENGOOD, CD HUANG, HS MENDELSOHN, MH WU, JM AF LIVENGOOD, CD HUANG, HS MENDELSOHN, MH WU, JM TI DEVELOPMENT OF MERCURY CONTROL TECHNOLOGY FOR COAL-FIRED SYSTEMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV ENERGY SYST,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 95 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601796 ER PT J AU NIEMCZYK, TM ZHANG, SB AF NIEMCZYK, TM ZHANG, SB TI QUANTITATIVE IR EMISSION-SPECTROSCOPY - A TOOL FOR PROCESS MONITORING SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 97 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600445 ER PT J AU ZACHARIAH, MR BURGESS, D TSANG, W WESTMORELAND, PR MELIUS, CF AF ZACHARIAH, MR BURGESS, D TSANG, W WESTMORELAND, PR MELIUS, CF TI THEORETICAL PREDICTION OF THERMOCHEMISTRY AND KINETICS OF FLUOROCARBONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL INST STAND & TECHNOL,GAITHERSBURG,MD. SANDIA NATL LABS,LIVERMORE,CA 94550. UNIV MASSACHUSETTS,AMHERST,MA 01003. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 101 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601530 ER PT J AU PAGE, DG AF PAGE, DG TI ENVIRONMENTAL RESTORATION OF MERCURY CONTAMINATION OF EAST FORK POPLAR CREEK AT THE DEPARTMENT-OF-ENERGY OAK-RIDGE, TENNESSEE, RESERVATION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 103 EP GEOC PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601947 ER PT J AU RAMSEY, JM AF RAMSEY, JM TI ULTRASENSITIVE SMALL-VOLUME ANALYSIS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 104 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600452 ER PT J AU PENTONEY, SL RAKESTRAW, DJ AF PENTONEY, SL RAKESTRAW, DJ TI MULTI-CAPILLARY CE/LIF USING A GALVOMETRIC SCANNER - APPLICATION TO IMMUNOASSAYS AND DNA ANALYSIS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BECKMAN INSTRUMENTS INC,CTR ADV TECHNOL,FULLERTON,CA 92634. SANDIA NATL LABS,LIVERMORE,CA 94551. NR 0 TC 1 Z9 1 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 105 EP ANYL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600453 ER PT J AU YAMANAKA, SA MARTINO, A KAWOLA, JS SHOWALTER, SK LOY, DA AF YAMANAKA, SA MARTINO, A KAWOLA, JS SHOWALTER, SK LOY, DA TI ENCAPSULATED METAL NANOCLUSTER MATERIALS PREPARED BY A NOVEL INVERSE MICELLE SOL-GEL TECHNIQUE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. RI Loy, Douglas/D-4847-2009 OI Loy, Douglas/0000-0001-7635-9958 NR 0 TC 0 Z9 0 U1 1 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 105 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601150 ER PT J AU ARZOUMANIDIS, GG MCINTOSH, MJ STEFFENSEN, EJ AF ARZOUMANIDIS, GG MCINTOSH, MJ STEFFENSEN, EJ TI CATALYTIC PYROLYSIS OF AUTOMOBILE SHREDDER RESIDUE (ASR) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 110 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601811 ER PT J AU MULLEN, KI NEAL, EE SORAN, PD ODOM, MA SMITH, BF AF MULLEN, KI NEAL, EE SORAN, PD ODOM, MA SMITH, BF TI SURFACTANT MONITORING BY FOAM GENERATION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,DIV CHEM SCI & TECHNOL,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 116 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600640 ER PT J AU KOUZES, RT AF KOUZES, RT TI THE ENVIRONMENTAL MOLECULAR SCIENCES LABORATORY AND COLLABORATORY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 118 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601547 ER PT J AU XANTHEAS, SS DUNNING, TH AF XANTHEAS, SS DUNNING, TH TI EFFECT OF MICROSOLVATION ON THE H-+H2O-LESS-THAN-OH-+H2 REACTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. RI Xantheas, Sotiris/L-1239-2015 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 118 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901034 ER PT J AU ZYGMUNT, SA CURTISS, LA ITON, LE AF ZYGMUNT, SA CURTISS, LA ITON, LE TI PROTON-TRANSFER VIA ADSORPTION OF WATER IN ZEOLITES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 VALPARAISO UNIV, DEPT PHYS & ASTRON, VALPARAISO, IN 46383 USA. ARGONNE NATL LAB, ARGONNE, IL 60439 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 119 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901035 ER PT J AU ANDREWS, JC SAUER, K MOLINARO, M AF ANDREWS, JC SAUER, K MOLINARO, M TI TEACHING INTRODUCTORY CHEMISTRY WITH A MODULE FORMAT - USING SOLAR-ENERGY TO TEACH CORE CONCEPTS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV STRUCT BIOL,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 120 EP CHED PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25600644 ER PT J AU PENG, G CHRISTIANSEN, JH CRAMER, SP YOUNG, AT AF PENG, G CHRISTIANSEN, JH CRAMER, SP YOUNG, AT TI X-RAY MAGNETIC CIRCULAR-DICHROISM STUDY THE BLUE COPPER PROTEIN SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF DAVIS,DEPT APPL SCI,DAVIS,CA 95054. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 127 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602231 ER PT J AU MIEDANER, A CURTIS, CJ WU, P KOETZLE, TF RICCI, JS XU, M DUBOIS, DL AF MIEDANER, A CURTIS, CJ WU, P KOETZLE, TF RICCI, JS XU, M DUBOIS, DL TI SYNTHESIS AND CHARACTERIZATION OF BIMETALLIC COMPLEXES CONTAINING A BIDENTATE PHOSPHIDO BRIDGE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL RENEWABLE ENERGY LAB,DIV BASIC SCI,GOLDEN,CO 80401. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 128 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602232 ER PT J AU SPREER, LO LANGE, C ALLAN, CB LI, A OTVOS, JW CALVIN, M AF SPREER, LO LANGE, C ALLAN, CB LI, A OTVOS, JW CALVIN, M TI REDOX CHEMISTRY OF A STRONGLY-COUPLED BIS-MACROCYCLIC DIIRON COMPOUND SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV PACIFIC,DEPT CHEM,STOCKTON,CA 95211. LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 130 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602234 ER PT J AU AUTREY, T LINEHAN, JC CAMAIONI, DM POWERS, TR WARTOB, HM FRANZ, JA AF AUTREY, T LINEHAN, JC CAMAIONI, DM POWERS, TR WARTOB, HM FRANZ, JA TI CATALYTIC CONVERSION OF POLYCYCLIC AROMATIC-HYDROCARBONS - MECHANISTIC INVESTIGATIONS OF HYDROGEN-TRANSFER FROM AN IRON-BASED CATALYST TO ALKYLARENES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 131 EP FUEL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601832 ER PT J AU KOUZES, RT MYERS, JD PRICE, JM AF KOUZES, RT MYERS, JD PRICE, JM TI COLLABORATORY DEVELOPMENTS IN ENVIRONMENT MOLECULAR SCIENCES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 132 EP COMP PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601406 ER PT J AU HERMAN, GS GALLAGHER, MC JOYCE, SA PEDEN, CHF AF HERMAN, GS GALLAGHER, MC JOYCE, SA PEDEN, CHF TI INTERACTION OF D2O WITH MODEL OXIDE SINGLE-CRYSTAL SURFACES - CLEAN AND OXIDIZED W (110) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 134 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601179 ER PT J AU CORRALES, LR AF CORRALES, LR TI PAIRWISE SEMIEMPIRICAL METHODOLOGY FOR MODELING AMORPHOUS AND CRYSTALLINE SURFACES OF COVALENTLY BONDED OXIDE MATERIALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 139 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901054 ER PT J AU RETZEL, EF SWOPE, KL SHOOP, E HOLT, O CARLIS, JV CHI, E BARRY, P BIEGANSKI, P REIDL, J AF RETZEL, EF SWOPE, KL SHOOP, E HOLT, O CARLIS, JV CHI, E BARRY, P BIEGANSKI, P REIDL, J TI THE ARABIDOPSIS CDNA SEQUENCING PROJECT - DERIVED BIOLOGICAL INFORMATION-PROCESSING, MANAGEMENT AND RETRIEVAL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 MICHIGAN STATE UNIV,DOE,RES LAB,E LANSING,MI 48824. UNIV MINNESOTA,SCH MED,MINNEAPOLIS,MN 55455. UNIV MINNESOTA,DEPT COMP SCI,MINNEAPOLIS,MN 55455. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 140 EP COMP PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601414 ER PT J AU NEBO, JF BRINKER, CJ SCOTTO, CS AF NEBO, JF BRINKER, CJ SCOTTO, CS TI TAILORING POROSITY IN POLYMER-DERIVED SIC SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ADV MAT LAB,ALBUQUERQUE,NM 87106. UNIV NEW MEXICO,CTR MICRO ENGN CERAM,ALBUQUERQUE,NM 87131. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 141 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901613 ER PT J AU NORRIS, JR DIKSHIT, S TANG, J TIEDE, DM AF NORRIS, JR DIKSHIT, S TANG, J TIEDE, DM TI ELECTRON-TRANSFER IN INTEGRAL MEMBRANE-PROTEINS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 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 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 141 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901056 ER PT J AU WALLACEWILLIAMS, SE JAMES, CA BARR, ME ANDREWS, CM SANDERLOEHR, J DEVRIES, S SARASTE, M LAPPALAINEN, P WOODRUFF, WH AF WALLACEWILLIAMS, SE JAMES, CA BARR, ME ANDREWS, CM SANDERLOEHR, J DEVRIES, S SARASTE, M LAPPALAINEN, P WOODRUFF, WH TI FAR-RED RESONANCE RAMAN-STUDY OF COPPER A OF CYTOCHROME-C-OXIDASE METAL-METAL BONDING IN BIOLOGY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. DELFT UNIV TECHNOL,DEPT MICROBIOL & ENZYMOL,DELFT,NETHERLANDS. OREGON GRAD INST,DEPT CHEM,PORTLAND,OR. EUROPEAN MOLEC BIOL LAB,HEIDELBERG,GERMANY. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 143 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602247 ER PT J AU BLAUDEAU, JP CURTISS, LA NAGY, Z HUNG, NC ZURAWSKI, DJ AF BLAUDEAU, JP CURTISS, LA NAGY, Z HUNG, NC ZURAWSKI, DJ TI CHLORIDE-ION CATALYSIS OF THE COPPER DEPOSITION REACTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 2 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 145 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601190 ER PT J AU DABESTANI, RT BARBAS, JT ELLIS, KJ SIGMAN, ME AF DABESTANI, RT BARBAS, JT ELLIS, KJ SIGMAN, ME TI PHOTODECOMPOSITION OF ACENAPHTHYLENE, ANTHRACENE AND TETRACENE ON DRY SILICA SURFACES - PRODUCTS AND MECHANISM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. NR 0 TC 1 Z9 1 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 148 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601577 ER PT J AU MIEDANER, A DUBOIS, DL AF MIEDANER, A DUBOIS, DL TI DEVELOPMENT OF ORGANOPHOSPHINE AND MIXED ORGANOPHOSPHINE-POLYAMIDOAMINE DENDRIMERS AS CATALYSTS FOR ELECTROCHEMICAL REDUCTION OF CO2 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NATL RENEWABLE ENERGY LAB,DIV BASIC SCI,GOLDEN,CO 80401. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 148 EP PMSE PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901620 ER PT J AU SCHUTT, WS LI, YZ SIGMAN, ME AF SCHUTT, WS LI, YZ SIGMAN, ME TI PHOTOINDUCED DEGRADATION OF PAHS IN THE PRESENCE OF OZONE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CLARKSON UNIV,DEPT CHEM,POTSDAM,NY 13676. OAK RIDGE NATL LAB,DIV CHEM,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 152 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601581 ER PT J AU KIRBY, JP MILLER, JR TERIZAN, R NOCERA, DG AF KIRBY, JP MILLER, JR TERIZAN, R NOCERA, DG TI PULSE-RADIOLYSIS STUDIES OF HYDROGEN-BONDED AROMATIC COMPLEXES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 MICHIGAN STATE UNIV,DEPT CHEM,E LANSING,MI 48824. ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 162 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602265 ER PT J AU SHOWALTER, SK PRAIRIE, MR STANGE, BM RODACY, PJ LESLIE, PK AF SHOWALTER, SK PRAIRIE, MR STANGE, BM RODACY, PJ LESLIE, PK TI PHOTODESTRUCTION OF EXPLOSIVES IN-PROCESS WATER SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 162 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601207 ER PT J AU GAI, HD SCHENTER, GK GARRETT, BC AF GAI, HD SCHENTER, GK GARRETT, BC TI THEORETICAL-STUDIES OF HYDROGEN DIFFUSION IN ICE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. RI Garrett, Bruce/F-8516-2011; Schenter, Gregory/I-7655-2014 OI Schenter, Gregory/0000-0001-5444-5484 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 175 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901090 ER PT J AU TERHORST, MA SCHATZ, GC HARDING, L AF TERHORST, MA SCHATZ, GC HARDING, L TI QUASI-CLASSICAL TRAJECTORY INVESTIGATIONS OF THE H2+CN AND H+HCN REACTIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. ARGONNE NATL LAB,THEORET CHEM GRP,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 181 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901096 ER PT J AU AYLOR, AW LOBREE, LJ REIMER, JA BELL, AT AF AYLOR, AW LOBREE, LJ REIMER, JA BELL, AT TI STUDIES OF THE MECHANISM OF NO REDUCTION BY CH4 OVER CO-ZSM-5 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,DEPT CHEM ENGN,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 185 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601230 ER PT J AU FELLER, DF GLENDENING, ED THOMPSON, MA AF FELLER, DF GLENDENING, ED THOMPSON, MA TI AN AB-INITIO STUDY OF THE SELECTIVE BINDING OF ALKALI AND ALKALINE-EARTH METAL-CATIONS FOR CROWN-ETHERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM & MOLEC SCI LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 192 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601621 ER PT J AU BUTLER, PD HAYTER, JB HAMILTON, WA AF BUTLER, PD HAYTER, JB HAMILTON, WA TI USE OF COMPLEMENTARY NEUTRON TECHNIQUES IN STUDYING THE EFFECT OF A SOLID-LIQUID INTERFACE ON BULK SOLUTION STRUCTURES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV SOLID STATE,OAK RIDGE,TN 37831. UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. RI Butler, Paul/D-7368-2011 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 194 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601239 ER PT J AU SIGMAN, ME BARBAS, JT COLQUHOUN, S NORMAN, C DABESTANI, R AF SIGMAN, ME BARBAS, JT COLQUHOUN, S NORMAN, C DABESTANI, R TI PHOTOCHEMISTRY OF SUBSTITUTED NAPHTHALENES AT AN SIO2/AIR INTERFACE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 OAK RIDGE NATL LAB,DIV CHEM & ANALYT SCI,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 194 EP ENVR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601623 ER PT J AU GAI, HD DANG, LX SCHENTER, GK GARRETT, BC AF GAI, HD DANG, LX SCHENTER, GK GARRETT, BC TI QUANTUM SIMULATION OF AQUEOUS IONIC CLUSTERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 197 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901112 ER PT J AU CHANG, TM DANG, LX AF CHANG, TM DANG, LX TI A MOLECULAR-DYNAMICS STUDY OF BULK LIQUID, LIQUID-VAPOR, AND LIQUID-LIQUID INTERFACES OF CARBON-TETRACHLORIDE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 198 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901113 ER PT J AU CHEN, A CORRALES, LR AF CHEN, A CORRALES, LR TI A SEMIEMPIRICAL MD STUDY OF BULK SILICA SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 199 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901114 ER PT J AU BARTELS, DM HAN, P AF BARTELS, DM HAN, P TI ISOTOPE EFFECTS ON DIFFUSION OF SMALL HYDROPHOBIC SPECIES IN WATER - OXYGEN, H-ATOMS, AND D ATOMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 221 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901136 ER PT J AU MARKOVIC, NM GASTEIGER, HA SARRAF, ST ROSS, PN AF MARKOVIC, NM GASTEIGER, HA SARRAF, ST ROSS, PN TI KINETIC AND MECHANISTIC STUDIES OF H2 OXIDATION AND GENERATION ON PT SINGLE-CRYSTAL SURFACES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 2 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 225 EP COLL PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25601270 ER PT J AU WERST, DW PIOCOS, EA HAN, PH TRIFUNAC, AD AF WERST, DW PIOCOS, EA HAN, PH TRIFUNAC, AD TI ION-MOLECULE REACTIONS IN ZEOLITES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 262 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901177 ER PT J AU PETERSON, KA DUNNING, TH WERNER, HJ AF PETERSON, KA DUNNING, TH WERNER, HJ TI THERMOCHEMISTRY AND PHOTOCHEMISTRY OF HALOGENATED SPECIES IN THE ATMOSPHERE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. UNIV STUTTGART, INST THEORET PHYS, W-7000 STUTTGART 80, GERMANY. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 279 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901194 ER PT J AU MARASAS, RA MILLER, JR AF MARASAS, RA MILLER, JR TI BENZENE ANION MEASUREMENTS IN THF SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 284 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901199 ER PT J AU WILLIAMS, S WOODRUFF, WH DYER, RB CALLENDER, RH GILMANSHIN, R AF WILLIAMS, S WOODRUFF, WH DYER, RB CALLENDER, RH GILMANSHIN, R TI THE EARLIEST EVENTS IN PROTEIN-FOLDING - DYNAMICS OF SECONDARY STRUCTURE FORMATION IN PROTEINS AND MODEL PEPTIDES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. CUNY CITY COLL,NEW YORK,NY 10031. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 286 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901201 ER PT J AU CORBETT, JD DONG, ZH GULOY, AM SEVOV, SC AF CORBETT, JD DONG, ZH GULOY, AM SEVOV, SC TI NEW LOOKS AT ZINTL PHASES - POLAR INTERMETALLIC PHASES OF INDIUM AND THALLIUM SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,AMES LAB,DOE,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 287 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602389 ER PT J AU GOSZTOLA, D WANG, B WASIELEWSKI, MR AF GOSZTOLA, D WANG, B WASIELEWSKI, MR TI FACTORING THROUGH-SPACE AND THROUGH-BOND CONTRIBUTIONS TO THE PHOTOINDUCED ELECTRON-TRANSFER IN DONOR-SPACER-ACCEPTOR MOLECULES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. RI Gosztola, David/D-9320-2011 OI Gosztola, David/0000-0003-2674-1379 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 289 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901204 ER PT J AU ROSENTHAL, SJ YEH, AT ALIVISATOS, AP SHANK, CV AF ROSENTHAL, SJ YEH, AT ALIVISATOS, AP SHANK, CV TI FEMTOSECOND ABSORPTION ANISOTROPY MEASUREMENTS OF CDSE NANOCRYSTALS - THE IMPORTANCE OF NONSPHERICAL CONFINEMENT SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 292 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901207 ER PT J AU GASTEIGER, HA MARKOVIC, NM ROSS, PN AF GASTEIGER, HA MARKOVIC, NM ROSS, PN TI UNDERPOTENTIAL AND OVERPOTENTIAL DEPOSITION OF COPPER ON PLATINUM SINGLE-CRYSTALS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. NR 0 TC 1 Z9 1 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 296 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602398 ER PT J AU GREENFIELD, SR SEIBERT, M GOVINDJEE WASIELEWSKI, MR AF GREENFIELD, SR SEIBERT, M GOVINDJEE WASIELEWSKI, MR TI FEMTOSECOND EXCITATION WAVELENGTH-DEPENDENT PHOTOCHEMISTRY OF ISOLATED PHOTOSYSTEM-II REACTION CENTERS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. UNIV ILLINOIS,DEPT PLANT BIOL,URBANA,IL 61801. NREL,PHOTOCONVERS BRANCH,GOLDEN,CO 80401. NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 297 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901212 ER PT J AU OSTAFIN, AE WERST, MM THURNAUER, MC AF OSTAFIN, AE WERST, MM THURNAUER, MC TI EPR STUDY OF STRUCTURE OF THE PRIMARY REACTANTS IN PHOTOSYSTEM-I (PSI) SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 298 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901213 ER PT J AU WEBER, S WERST, M THURNAUER, M NORRIS, JR OHMES, E KOTHE, G AF WEBER, S WERST, M THURNAUER, M NORRIS, JR OHMES, E KOTHE, G TI NUCLEAR QUANTUM BEATS OBSERVED FROM PHOTOSYNTHETIC CHARGE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. UNIV FREIBURG,INST PHYS CHEM,D-79104 FREIBURG,GERMANY. RI Weber, Stefan/G-6164-2010 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 299 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901214 ER PT J AU WIEDERRECHT, GP YOON, BA WASIELEWSKI, MR AF WIEDERRECHT, GP YOON, BA WASIELEWSKI, MR TI PHOTOREFRACTIVITY IN LIQUID-CRYSTALS DOPED WITH ELECTRON-DONORS AND ACCEPTORS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 300 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901215 ER PT J AU DEBRECZENY, MP SVEC, WA WASIELEWSKI, MR AF DEBRECZENY, MP SVEC, WA WASIELEWSKI, MR TI A MOLECULAR PROBE OF THE ELECTRIC-FIELD PRODUCED BY A PHOTOGENERATED ION-PAIR USING TRANSIENT ABSORPTION-SPECTROSCOPY SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NORTHWESTERN UNIV,DEPT CHEM,EVANSTON,IL 60208. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 309 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901224 ER PT J AU BAILEY, JA JAMES, CA WOODRUFF, WH AF BAILEY, JA JAMES, CA WOODRUFF, WH TI KINETICS OF DI-OXYGEN BINDING TO CYTOCHROME-C-OXIDASE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 LOS ALAMOS NATL LAB,DIV CHEM SCI & TECHNOL CST4,LOS ALAMOS,NM 87545. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 325 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602427 ER PT J AU BAIRD, B HOLOWKA, D AF BAIRD, B HOLOWKA, D TI INVESTIGATION OF ALCOHOLS ADSORBED AT WATERS LIQUID-VAPOR INTERFACE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CORNELL UNIV, DEPT CHEM, ITHACA, NY 14853 USA. PACIFIC NW LAB, ENVIRONM MOLEC SCI LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 332 EP PHYS PN 2 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP259 UT WOS:A1995RP25901247 ER PT J AU ZHONG, CJ LAMP, BD TANI, N POTER, MD AF ZHONG, CJ LAMP, BD TANI, N POTER, MD TI DEPOSITION DESORPTION OF ORGANOSULFUR-CONTAINING MONOLAYERS AT GOLD SUBSTRATES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RI Zhong, Chuan-Jian/D-3394-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 351 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602453 ER PT J AU SABOUNGI, ML ARMAND, P ITON, L CRAMER, C PRICE, DL COX, DE AF SABOUNGI, ML ARMAND, P ITON, L CRAMER, C PRICE, DL COX, DE TI SEMICONDUCTORS CONFINED IN ZEOLITE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,ARGONNE,IL 60439. BROOKHAVEN NATL LAB,UPTON,NY 11973. RI Price, David Long/A-8468-2013; Saboungi, Marie-Louise/C-5920-2013 OI Saboungi, Marie-Louise/0000-0002-0607-4815 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 374 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602476 ER PT J AU HENNING, RW CORBETT, JD AF HENNING, RW CORBETT, JD TI THE 1ST ISOLATED CLUSTERS IN THE ALKALI-METAL-GALLIUM SYSTEMS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,AMES LAB,DOE,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 435 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602536 ER PT J AU LEONESCAMILLA, EA CORBETT, JD AF LEONESCAMILLA, EA CORBETT, JD TI ELECTRON-DEFICIENT ALKALINE-EARTH-METAL TETRELIDES IN THE CR5B3 STRUCTURE TYPE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,AMES LAB,DOE,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 436 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602537 ER PT J AU VAUGHEY, JT CORBETT, JD AF VAUGHEY, JT CORBETT, JD TI A STRUCTURE-BASED ON INTERPENETRATING HELICES - NA[GASN2] SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,AMES LAB,DOE,AMES,IA 50011. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 439 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602540 ER PT J AU ARTERBURN, JA HALL, KA FOGARTY, IM GOREHAM, DM BRYAN, JC OTT, KC AF ARTERBURN, JA HALL, KA FOGARTY, IM GOREHAM, DM BRYAN, JC OTT, KC TI SYNTHESIS, CHARACTERIZATION AND MECHANISTIC ASPECTS OF THE FORMATION OF BIOLOGICALLY RELEVANT RHENIUM IMIDO COMPLEXES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 NEW MEXICO STATE UNIV,DEPT CHEM & BIOCHEM,LAS CRUCES,NM 88003. LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 451 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602552 ER PT J AU MUTZ, MW WISHART, JF MCLENDON, G AF MUTZ, MW WISHART, JF MCLENDON, G TI ELECTRON-TRANSFER ACROSS SELF-ASSEMBLED 3 HELIX BUNDLES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV ROCHESTER,DEPT CHEM,ROCHESTER,NY 14627. BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 481 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602582 ER PT J AU YUCHS, SE CARRADO, KA AF YUCHS, SE CARRADO, KA TI A ONE-STEP METHOD FOR THE SYNTHESIS OF A VINYL CONTAINING SILSESQUIOXANE AND OTHER ORGANOLITHIC MACROMOLECULAR PRECURSORS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 ARGONNE NATL LAB,DIV CHEM,ARGONNE,IL 60439. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 510 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602611 ER PT J AU JENTZEN, W TUROWSKATYRK, I SCHEIDT, WR SHELNUTT, JA AF JENTZEN, W TUROWSKATYRK, I SCHEIDT, WR SHELNUTT, JA TI X-RAY-DIFFRACTION AND RESONANCE RAMAN-SPECTROSCOPY REVEALS A PLANAR CONFORMATION FOR NICKEL(II) PORPHINE IN SOLUTION AND IN THE CRYSTAL SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,DEPT FUEL SCI,ALBUQUERQUE,NM 87185. UNIV NOTRE DAME,DEPT CHEM,NOTRE DAME,IN 46556. UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 531 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602632 ER PT J AU SHELNUTT, JA SIMPSON, MC HOBBS, JD SONG, X EMA, T NELSON, NY MEDFORTH, CJ SMITH, KM VEYRAT, M RAMASSEUL, R MARCHON, JC AF SHELNUTT, JA SIMPSON, MC HOBBS, JD SONG, X EMA, T NELSON, NY MEDFORTH, CJ SMITH, KM VEYRAT, M RAMASSEUL, R MARCHON, JC TI CLASSIFICATION OF SYMMETRICAL NONPLANAR PORPHYRIN DISTORTIONS SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 CEA,DEPT RECH FONDAMENTALE MAT CONDENSEE,SESAM,GRENOBLE,FRANCE. SANDIA NATL LABS,DEPT FUEL SCI,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; Simpson, Miriam/C-4237-2011; Smith, Kevin/G-1453-2011 OI Shelnutt, John/0000-0001-7368-582X; Smith, Kevin/0000-0002-6736-4779 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 622 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602723 ER PT J AU SONG, X MIURA, M SHELNUTT, JA AF SONG, X MIURA, M SHELNUTT, JA TI ELECTRON-TRANSFER PHOTOSENSITIZED BY A LIPO-PORPHYRIN IN MICELLES AND AT WATER-ORGANIC SOLVENT INTERFACES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. SANDIA NATL LABS,DEPT FUEL SCI,ALBUQUERQUE,NM 87185. UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 626 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602727 ER PT J AU JENTZEN, W MAHMUD, T UNGER, E SCHWEITZERSTENNER, R DREYBRODT, W TUROWSKATYRK, I SCHEIDT, WR SHELNUTT, JA AF JENTZEN, W MAHMUD, T UNGER, E SCHWEITZERSTENNER, R DREYBRODT, W TUROWSKATYRK, I SCHEIDT, WR SHELNUTT, JA TI X-RAY-DIFFRACTION AND RESONANCE RAMAN-SPECTROSCOPY REVEALS BOTH PLANAR AND NONPLANAR CONFORMATIONS OF NICKEL(II) TETRAPHENYLPORPHINE IN SOLUTION SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV BREMEN,INST EXPTL PHYS,D-28359 BREMEN,GERMANY. UNIV NOTRE DAME,DEPT CHEM,NOTRE DAME,IN 46556. SANDIA NATL LABS,DEPT FUEL SCI,ALBUQUERQUE,NM 87185. UNIV NEW MEXICO,DEPT CHEM,ALBUQUERQUE,NM 87131. RI Shelnutt, John/A-9987-2009 OI Shelnutt, John/0000-0001-7368-582X NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 628 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602729 ER PT J AU TELSER, J FANN, YC HOFFMAN, BM ZHANG, H WANG, S SCOTT, RA RENNER, MW AF TELSER, J FANN, YC HOFFMAN, BM ZHANG, H WANG, S SCOTT, RA RENNER, MW TI PULSED AND CW EPR AND ENDOR STUDIES OF NI(I) MACROCYCLIC COMPLEXES - F430 COFACTOR FROM METHANOBACTERIUM-THERMOAUTOTROPHICUM S-METHYL COENZYME M REDUCTASE, F430-PENTA-N-BUTYLAMIDE, AND NI(I) OCTAETHYLISOBACTERIOCHLORIN SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV GEORGIA, DEPT CHEM, ATHENS, GA 30602 USA. UNIV GEORGIA, DEPT CHEM, ATHENS, GA 30602 USA. BROOKHAVEN NATL LAB, DEPT APPL SCI, UPTON, NY 11973 USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 665 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602766 ER PT J AU MYERS, SA IRWIN, AD ASSINK, RA SCHWARTZ, RW AF MYERS, SA IRWIN, AD ASSINK, RA SCHWARTZ, RW TI AN O-17 NMR-STUDY OF MOLECULARLY MODIFIED TI(OPRI)4 SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. BUTLER UNIV,INDIANAPOLIS,IN 46208. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 677 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602778 ER PT J AU ZHANG, DL HAY, BP RUSTAD, JR AF ZHANG, DL HAY, BP RUSTAD, JR TI MOLECULAR MECHANICS STUDIES ON ALKALI AND ALKALINE-EARTH METAL-COMPLEXES WITH POLYETHERS - INFLUENCE OF ALKYLATION AND CHELATE RING SIZE SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 693 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602793 ER PT J AU BLEY, RA KAUZLARICH, SM LEE, HWH AF BLEY, RA KAUZLARICH, SM LEE, HWH TI A NOVEL-APPROACH TO THE SYNTHESIS OF SILICON NANOPARTICLES SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF DAVIS,DEPT CHEM,DAVIS,CA 95616. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0065-7727 J9 ABSTR PAP AM CHEM S JI Abstr. Pap. Am. Chem. Soc. PD AUG 20 PY 1995 VL 210 BP 708 EP INOR PN 1 PG 0 WC Chemistry, Multidisciplinary SC Chemistry GA RP256 UT WOS:A1995RP25602807 ER PT J AU RHODES, MA WOODS, B DEYOREO, JJ ROBERTS, D ATHERTON, LJ AF RHODES, MA WOODS, B DEYOREO, JJ ROBERTS, D ATHERTON, LJ TI PERFORMANCE OF LARGE-APERTURE OPTICAL SWITCHES FOR HIGH-ENERGY INERTIAL-CONFINEMENT FUSION LASERS SO APPLIED OPTICS LA English DT Article DE POCKELS CELL; LASER; INERTIAL-CONFINEMENT FUSION; PLASMA AB We describe the design and performance of large-aperture (> 30 cm x 30 cm) optical switches that have demonstrated, for the first time to our knowledge, active switching of a high-energy ( > 5 kJ) optical pulse in an inertial-confinement fusion laser. These optical switches, which consist of a plasma-electrode Pockels cell (PEPC) and a passive polarizer, permit the design of efficient, multipass laser amplifiers. In a PEPC, plasma discharges on the faces of a thin (1-cm) electro-optic crystal (KDP or KD*P) act as highly conductive and transparent electrodes. These plasma electrodes facilitate rapid ( < 100 ns) and uniform charging of the crystal to the half-wave voltage and discharging back to 0 V. We discuss the operating principles, design, optical performance, and technical issues of a 32 cm x 32 cm prototype PEPC with both KDP and KD*P crystals, and a 37 cm x 37 cm PEPC with a KDP crystal for the Beamlet laser. This PEPC recently switched a 6-kJ, 3-ns pulse in a four-pass cavity. RP RHODES, MA (reprint author), LAWRENCE LIVERMORE NATL LAB,POB 808,LIVERMORE,CA 94550, USA. NR 15 TC 60 Z9 70 U1 0 U2 8 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD AUG 20 PY 1995 VL 34 IS 24 BP 5312 EP 5325 PG 14 WC Optics SC Optics GA RP421 UT WOS:A1995RP42100008 PM 21060350 ER PT J AU LEE, SJ SCHRAMM, DN MATHEWS, GJ AF LEE, SJ SCHRAMM, DN MATHEWS, GJ TI A MERGER MODEL AND GLOBULAR-CLUSTER FORMATION SO ASTROPHYSICAL JOURNAL LA English DT Article DE GLOBULAR CLUSTERS, GENERAL; STARS, FORMATION ID AGE-METALLICITY RELATION; HELIUM DIFFUSION; STAR FORMATION; GALAXIES; HALO; DISK AB We propose a self-consistent model for globular cluster formation in, but not limited to, our Galaxy, based on the merger model of Mathews & Schramm (1993). Stars and star clusters form in bursts at the merging interfaces as protogalactic clouds collide. We describe the formation of those star clusters with a simple schematic Ansatz which takes into account the thermal and Kelvin-Helmholtz instabilities. It is shown that this model is consistent with many observational properties such as the age and metallicity distributions of globular clusters, the overall number of globular clusters, and the near constancy of the numbers of globular clusters in different size host galaxies. Most of the features of this merger model are insensitive to choices of parameters. However, the model does not produce as many high-metallicity clusters as observed. Possible explanations for this are presented. C1 FERMILAB NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. UNIV NOTRE DAME,DEPT PHYS,NOTRE DAME,IN 46556. RP LEE, SJ (reprint author), UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637, USA. NR 31 TC 11 Z9 11 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 1995 VL 449 IS 2 BP 616 EP 622 DI 10.1086/176083 PN 1 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA RP424 UT WOS:A1995RP42400020 ER PT J AU BECKLIN, EE MACINTOSH, B ZUCKERMAN, B AF BECKLIN, EE MACINTOSH, B ZUCKERMAN, B TI THE BROWN DWARF CANDIDATE 0918-0023B IS A DISTANT COMPACT GALAXY SO ASTROPHYSICAL JOURNAL LA English DT Article DE GALAXIES, STARBURST; STARS, LOW-MASS, BROWN DWARFS AB We imaged the brown dwarf candidate 0918-0023B of Jones, Miller, and Glazebrook at 2.2 mu m on the Keck telescope under outstanding seeing of 0 ''.4 full width at half-maximum intensity. The candidate object is clearly extended in comparison to the primary star 0918-0023A and several other stars in the field. So, 0918-0023B is certainly a distant galaxy and not a brown dwarf. Seven years after its discovery on the IRTF, GD 165B remains the only low-mass star/brown dwarf candidate with J - K color > 1.5 mag. C1 LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550. RP BECKLIN, EE (reprint author), UNIV CALIF LOS ANGELES,DEPT PHYS & ASTRON,LOS ANGELES,CA 90095, USA. NR 9 TC 3 Z9 3 U1 0 U2 0 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 1995 VL 449 IS 2 BP L117 EP L118 PN 2 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA RP425 UT WOS:A1995RP42500005 ER PT J AU GATES, EI GYUK, G TURNER, MS AF GATES, EI GYUK, G TURNER, MS TI THE LOCAL HALO DENSITY SO ASTROPHYSICAL JOURNAL LA English DT Article DE DARK MATTER; GALAXY, HALO; GALAXY, STRUCTURE; GRAVITATIONAL LENSING ID DARK-MATTER; GALACTIC HALO; MASS DENSITY; GALAXY; UNIVERSE; MODEL AB For almost 20 years models of the Galaxy have included a dark halo responsible for supporting a substantial fraction of the local rotation velocity and a flat rotation curve at large distances. Estimates of the local halo density range from 2 x 10(-25) g cm(-3) to 10 X 10(-25) g cm(-3). BY careful modeling of the Galaxy, taking account of the evidence that dark halos are flattened and recent microlensing data, we arrive at a more quantitative estimate, 9.2(-3.1)(+3.8) X 10(-25) g cm(-3). Microlensing toward the LMC indicates that only a small fraction, less than similar to 30%, can be in the form of MACHOs, which is consistent with the idea that most of the halo consists of cold dark matter particles. C1 FERMILAB NATL ACCELERATOR LAB, NASA, FERMILAB ASTROPHYS CTR, BATAVIA, IL 60510 USA. UNIV CHICAGO, ENRICO FERMI INST, DEPT PHYS, CHICAGO, IL 60637 USA. RP GATES, EI (reprint author), UNIV CHICAGO, ENRICO FERMI INST, DEPT ASTRON & ASTROPHYS, 5640 S ELLIS AVE, CHICAGO, IL 60637 USA. NR 50 TC 108 Z9 109 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD AUG 20 PY 1995 VL 449 IS 2 BP L123 EP L126 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA RP425 UT WOS:A1995RP42500007 ER PT J AU SATZ, H WANG, XN AF SATZ, H WANG, XN TI HARD PROCESSES IN HADRONIC-INTERACTIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Editorial Material C1 UNIV BIELEFELD,FAK PHYS,D-33501 BIELEFELD,GERMANY. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP SATZ, H (reprint author), CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND. NR 0 TC 15 Z9 15 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 2881 EP 2883 DI 10.1142/S0217751X95001376 PG 3 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300001 ER PT J AU GAVIN, S GUPTA, S KAUFFMAN, R RUUSKANEN, PV SRIVASTAVA, DK THEWS, RL AF GAVIN, S GUPTA, S KAUFFMAN, R RUUSKANEN, PV SRIVASTAVA, DK THEWS, RL TI PRODUCTION OF DRELL-YAN PAIRS IN PP COLLISIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article ID LARGE TRANSVERSE-MOMENTUM; TO-BACK JETS; HIGH-PT W; HADRON-COLLISIONS; BOSON PRODUCTION; CROSS-SECTION; K-FACTOR; ANGULAR-DISTRIBUTIONS; QCD; ORDER AB We compute cross sections for the Drell-Yan process in N-N collisions at next-to-leading order in alpha(s). The mass, rapidity, transverse momentum, and angular dependence of these cross sections are presented. An estimate of higher order corrections is obtained from next-to-next-to-leading order calculation of the mass distribution. We compare the results with some of the existing data to show the quality of the agreement between calculations and data. We present predictions for energies that will become available at the RHIC and LHC colliders. Uncertainties in these predictions due to choices of scale, scheme and parton distribution are discussed. C1 TATA INST FUNDAMENTAL RES,THEORY GRP,BOMBAY 400005,MAHARASHTRA,INDIA. UNIV HELSINKI,INST THEORET PHYS,SF-00014 HELSINKI,FINLAND. BHABHA ATOM RES CTR,CTR VARIABLE ENERGY CYCLOTRON,CALCUTTA 700064,W BENGAL,INDIA. UNIV ARIZONA,DEPT PHYS,TUCSON,AZ 85721. RP GAVIN, S (reprint author), BROOKHAVEN NATL LAB,DEPT PHYS,UPTON,NY 11973, USA. NR 53 TC 33 Z9 33 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 2961 EP 2998 DI 10.1142/S0217751X9500142X PG 38 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300006 ER PT J AU MCGAUGHEY, PL QUACK, E RUUSKANEN, PV VOGT, R WANG, XN AF MCGAUGHEY, PL QUACK, E RUUSKANEN, PV VOGT, R WANG, XN TI HEAVY-QUARK PRODUCTION IN PP COLLISIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article ID = 1.8 TEV; PROTON-EMULSION INTERACTIONS; CHARM MESON PRODUCTION; LUND MONTE-CARLO; CROSS-SECTION; HADRONIC COLLISIONS; GEV/C-PI; D(0),(D)OVER-BAR(0) PRODUCTION; (P)OVER-BAR-P COLLISIONS; P(P)OVER-BAR COLLISIONS AB A systematic study of the inclusive single heavy quark and heavy-quark pair production cross sections in pp collisions is presented for RHIC and LHC energies. We compare with existing data when possible. The dependence of the rates on the renormalization and factorization scales is discussed. Predictions of the cross sections are given for two different sets of parton distribution functions. C1 GESELL SCHWERIONENFORSCH INST DARMSTADT,D-64220 DARMSTADT,GERMANY. UNIV HELSINKI,INST THEORET PHYS,SF-00014 HELSINKI,FINLAND. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP MCGAUGHEY, PL (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. NR 53 TC 47 Z9 47 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 2999 EP 3041 DI 10.1142/S0217751X95001431 PG 43 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300007 ER PT J AU GAVAI, R KHARZEEV, D SATZ, H SCHULER, GA SRIDHAR, K VOGT, R AF GAVAI, R KHARZEEV, D SATZ, H SCHULER, GA SRIDHAR, K VOGT, R TI QUARKONIUM PRODUCTION IN HADRONIC COLLISIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article ID PI-N INTERACTIONS; J-PSI; 300-GEV/C PROTON; GLUON; DISTRIBUTIONS; NUCLEON; UPSILON; J/PSI; HERA AB We summarize the theoretical description of charmonium and bottonium production in hadronic collisions and compare it to the available data from hadron-nucleon interactions. With the parameters of the theory established by these data, we obtain predictions for quarkonium production at RHIC and LHC energies. C1 CERN,DIV THEORY,CH-1211 GENEVA 23,SWITZERLAND. UNIV BIELEFELD,FAK PHYS,D-33501 BIELEFELD,GERMANY. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP GAVAI, R (reprint author), TATA INST FUNDAMENTAL RES,HOMI BHABHA RD,BOMBAY 400005,MAHARASHTRA,INDIA. NR 36 TC 143 Z9 144 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 3043 EP 3070 DI 10.1142/S0217751X95001443 PG 28 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300008 ER PT J AU ESKOLA, KJ WANG, XN AF ESKOLA, KJ WANG, XN TI HIGH (PT) JET PRODUCTION IN PP COLLISIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article ID INCLUSIVE CROSS-SECTION; HADRON-COLLISIONS; PBARP COLLISIONS; QCD; DEPENDENCE; SCATTERING; COLLIDER; GLUONS; HERA; TEV AB Production rates of large pT jets in pp collisions at RHIC and LHC energies are studied using the next-to-leading order calculation of S.D. Ellis, Z. Kunszt and D. Soper. The computed inclusive one-jet cross sections are compared against the CERN and Fermilab jet data from p $($) over bar$$ p and pp collisions. The dependence of the results on the choice of parton distributions and renormalization/factorization scales is investigated. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP ESKOLA, KJ (reprint author), UNIV HELSINKI,HIGH ENERGY PHYS LAB,POB 9,SF-00014 HELSINKI,FINLAND. NR 18 TC 24 Z9 24 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 3071 EP 3085 DI 10.1142/S0217751X95001455 PG 15 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300009 ER PT J AU ESKOLA, KJ VOGT, R WANG, XN AF ESKOLA, KJ VOGT, R WANG, XN TI NUCLEAR OVERLAP FUNCTIONS SO INTERNATIONAL JOURNAL OF MODERN PHYSICS A LA English DT Article ID COLLISIONS C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV NUCL SCI,BERKELEY,CA 94720. RP ESKOLA, KJ (reprint author), UNIV HELSINKI,HIGH ENERGY PHYS LAB,POB 9,SF-00014 HELSINKI,FINLAND. NR 4 TC 19 Z9 19 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 AUG 20 PY 1995 VL 10 IS 20-21 BP 3087 EP 3090 DI 10.1142/S0217751X95001467 PG 4 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA RL433 UT WOS:A1995RL43300010 ER PT J AU COLLE, R UNTERWEGER, MP HODGE, PA HUTCHINSON, JMR WHITTLESTONE, S POLIAN, G ARDOUIN, B KAY, JG FRIEND, JP BLOMQUIST, BW NADLER, W DANG, TT LARSEN, RJ HUTTER, AR AF COLLE, R UNTERWEGER, MP HODGE, PA HUTCHINSON, JMR WHITTLESTONE, S POLIAN, G ARDOUIN, B KAY, JG FRIEND, JP BLOMQUIST, BW NADLER, W DANG, TT LARSEN, RJ HUTTER, AR TI AN INTERNATIONAL INTERCOMPARISON OF MARINE ATMOSPHERIC RADON-222 MEASUREMENTS IN BERMUDA SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article AB As part of an international measurement intercomparison of instruments used to measure atmospheric Rn-222, four participating laboratories made nearly simultaneous measurements of Rn-222 activity concentration in commonly sampled, ambient air over approximately a 2-week period, and three of these four laboratories participated in the measurement comparison of 14 introduced samples with known, but undisclosed (''blind'') Rn-222 activity concentrations that could be related to U.S, national standards. The standardized sample additions were obtained with a calibrated Ra-226 source and a specially designed manifold used to obtain well-known dilution factors from simultaneous flow rate measurements. The exercise was conducted in Bermuda in October 1991. The Rn-222 activity concentrations in ambient Bermudian air over the course of the intercomparison ranged from a few hundredths to about 2 Bq m(-3), while the standardized sample additions covered a range from approximately 2.5 to 35 Bq m(-3). The overall uncertainty in the latter concentrations was in the general range of 10% at a 3 standard deviation uncertainty interval. The results of the intercomparison indicated that two of the laboratories were within very good agreement with the standard additions and almost within expected statistical variations. These same two laboratories, however, at lower ambient concentrations, exhibited a systematic difference with an averaged offset of roughly 0.3 Bq m(-3). The third laboratory participating in the measurement of standardized sample additions was systematically low by about 65-70%, which was also confirmed in their ambient air concentration measurements. The fourth laboratory, participating in only the ambient measurement part of the intercomparison, was also systematically low by at least 40% with respect to the first two aforementioned laboratories. C1 AUSTRALIAN NUCL SCI & TECHNOL ORG, MENAI, NSW 2234, AUSTRALIA. CEA, CTR FAIBLES RADIOACTIV, MIXTE LAB, CNRS, GIF SUR YVETTE, FRANCE. DREXEL UNIV, DEPT CHEM, ATMOSPHER CHEM LABS, PHILADELPHIA, PA 19104 USA. US DOE, ENVIRONM MEASUREMENTS LAB, NEW YORK, NY 10014 USA. RP COLLE, R (reprint author), NIST, PHYS LAB, DIV IONIZING RADIAT, GAITHERSBURG, MD 20899 USA. NR 11 TC 8 Z9 8 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-897X J9 J GEOPHYS RES-ATMOS JI J. Geophys. Res.-Atmos. PD AUG 20 PY 1995 VL 100 IS D8 BP 16617 EP 16638 DI 10.1029/95JD01535 PG 22 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA RU107 UT WOS:A1995RU10700026 ER PT J AU FINDIKOGLU, AT JIA, QX REAGOR, DW WU, XD AF FINDIKOGLU, AT JIA, QX REAGOR, DW WU, XD TI ELECTRICAL CHARACTERISTICS OF COPLANAR WAVE-GUIDE DEVICES INCORPORATING NONLINEAR DIELECTRIC THIN-FILMS OF SRTIO(3) AND SR0.5BA0.5TIO3 SO MICROWAVE AND OPTICAL TECHNOLOGY LETTERS LA English DT Article DE COPLANAR WAVE-GUIDE; TUNABLE RESONATOR; TUNABLE PHASE SHIFTER; NONLINEAR DIELECTRIC; HIGH-TEMPERATURE SUPERCONDUCTOR AB We have studied voltage-tunable (0-200 V) broadband (0.1-5.1 GHz) microwave properties at room temperature and the liquid nitrogen temperature of two coplanar waveguide devices made from a Au/Sr0.5Ba0.5TiO3 bilayer and a YBa2Cu3O7-x/SrTiO3 bilayer, respectively. The experimental results agree well with the predictions of simple quasistatic and quasi-TEM models. (C) 1995 John Wiley & Sons, Inc. RP FINDIKOGLU, AT (reprint author), LOS ALAMOS NATL LAB,CTR SUPERCOND TECHNOL,DIV MAT SCI & TECHNOL,LOS ALAMOS,NM 87545, USA. RI Jia, Q. X./C-5194-2008 NR 0 TC 31 Z9 31 U1 0 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0895-2477 J9 MICROW OPT TECHN LET JI Microw. Opt. Technol. Lett. PD AUG 20 PY 1995 VL 9 IS 6 BP 306 EP 310 DI 10.1002/mop.4650090603 PG 5 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA RK742 UT WOS:A1995RK74200002 ER PT J AU CHANG, SL CHIN, WB ZHANG, CM JENKS, CJ THIEL, PA AF CHANG, SL CHIN, WB ZHANG, CM JENKS, CJ THIEL, PA TI OXYGEN-ADSORPTION ON A SINGLE-GRAIN, QUASI-CRYSTAL SURFACE SO SURFACE SCIENCE LA English DT Article DE ALLOYS; AUGER ELECTRON SPECTROSCOPY; OXIDATION ID QUASI-CRYSTALLINE COATINGS; ANGLE-RESOLVED SIMS; INITIAL INTERACTION; ALUMINUM SURFACES; AL(100); PHASE; CHEMISORPTION; DIFFRACTION; MICROSCOPY; OXIDATION AB Oxygen adsorbs on the five-fold surface of Al70Pd21Mn9. A chemisorbed phase, possibly in or below the surface plane, serves as a precursor to oxidation of Al. This chemisorbed phase destroys the quasiperiodicity of the surface. The major features of oxygen adsorption and oxidation are similar in the temperature range 105-500 K, but are different at 870 K, where Al segregates strongly to the surface. We postulate that Al segregation is driven by the exothermicity of its oxide, which is higher than that of the other constituents of this alloy. At all temperatures, the oxide layer is passivating (under the conditions of these experiments), is quite thin (less than or similar to 10 Angstrom) and is thermally stable (at least upon heating to 870 K). The oxidation characteristics of this quasicrystal are broadly similar to those of its major constituent, Al, with the possible exception of the oxygen sticking coefficient. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011. DONG A UNIV,DEPT PHYS,SAHA GU,PUSAN 604714,SOUTH KOREA. NR 52 TC 84 Z9 84 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD AUG 20 PY 1995 VL 337 IS 1-2 BP 135 EP 146 DI 10.1016/0039-6028(95)00564-1 PG 12 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA RQ749 UT WOS:A1995RQ74900022 ER PT J AU SARKER, M GUIOCHON, G AF SARKER, M GUIOCHON, G TI STUDY OF THE OPERATING-CONDITIONS OF AXIAL-COMPRESSION COLUMNS FOR PREPARATIVE CHROMATOGRAPHY SO JOURNAL OF CHROMATOGRAPHY A LA English DT Article AB The packing behavior and the stability of a spherical-particle, silica-based packing material and the operation of an axial compression column are discussed. The coupling between the axial compression pressure and the inlet pressure at constant flow-rate was investigated. The results demonstrated also an excellent column efficiency, a rapid packing consolidation, and a long-term stability of the column performance. Reduced height equivalents of theoretical plate (HETPs) around 2 were routinely obtained and the column did not show any sign of degradation of its efficiency or stability after 700 h of continuous use. These results are attributed primarily to the spherical nature of the material used. Finally, a procedure for opening the top flange of a column packed under axial compression without loosing any stationary phase nor degrading the column efficiency is described. C1 UNIV TENNESSEE,DEPT CHEM,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV ANALYT CHEM,OAK RIDGE,TN 37831. NR 11 TC 27 Z9 28 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0021-9673 J9 J CHROMATOGR A JI J. Chromatogr. A PD AUG 18 PY 1995 VL 709 IS 2 BP 227 EP 239 DI 10.1016/0021-9673(95)00474-2 PG 13 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA RT436 UT WOS:A1995RT43600001 ER PT J AU MARTI, V AGUILAR, M YEUNG, ES AF MARTI, V AGUILAR, M YEUNG, ES TI INDIRECT FLUORESCENCE DETECTION OF FREE CYANIDE AND RELATED-COMPOUNDS BY CAPILLARY ELECTROPHORESIS SO JOURNAL OF CHROMATOGRAPHY A LA English DT Article ID ZONE ELECTROPHORESIS; PHOTOCATALYTIC OXIDATION; ION; SEPARATION; COMPLEXES AB A capillary electrophoretic method to detect CN- and some related compounds (CNO-, SCN-, and NO3-) using a prototype laser-based indirect fluorescence detector has been developed. This method avoids interferences from Cl-, SO42-, CO32-, HCO3-, and ClO- and allows the detection of CN- in less than 4 min and the detection of related compounds in less than 8 min with precise migration times (R.S.D. about 1%). The measured detection limits of CN- [5x10(-6) M with DR=90 (dynamic reserve)] are close to the expected theoretical value [TR(CN) = 0.44 (transfer ratio)]. For the related compounds, the measured detection limits ranged from 10(-5) to 2 x 10(-6) M, depending on noise conditions (DR greater than or equal to 300). The results showed that the chosen analytical conditions were appropriate acid the detection limits could be improved using techniques to further decrease the noise (probably due to mechanical vibrations). Peak-height precision was about 10% R.S.D. and log-log regressions had slopes lower than one. These results seem to be due to instabilities in the indirect signal. The analysis of a quasi-real sample has been achieved, allowing identification of the related compounds present in a CN-/SCN- sample oxidized with ClO- and determination of the CNO- formed in this alkaline oxidation. C1 UNIV POLITECN CATALUNYA,DEPT ENGN QUIM,E-08028 BARCELONA,SPAIN. US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. OI Marti, Vicenc/0000-0002-1763-0514 NR 29 TC 29 Z9 29 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0021-9673 J9 J CHROMATOGR A JI J. Chromatogr. A PD AUG 18 PY 1995 VL 709 IS 2 BP 367 EP 374 DI 10.1016/0021-9673(95)00446-T PG 8 WC Biochemical Research Methods; Chemistry, Analytical SC Biochemistry & Molecular Biology; Chemistry GA RT436 UT WOS:A1995RT43600016 ER PT J AU ENGLEN, MD VALDEZ, YE LEHNERT, NM LEHNERT, BE AF ENGLEN, MD VALDEZ, YE LEHNERT, NM LEHNERT, BE TI GRANULOCYTE/MACROPHAGE COLONY-STIMULATING FACTOR IS EXPRESSED AND SECRETED IN CULTURES OF MURINE L929 CELLS SO JOURNAL OF IMMUNOLOGICAL METHODS LA English DT Letter ID ALVEOLAR MACROPHAGES; GENE-EXPRESSION; GROWTH-FACTORS; PROLIFERATION; PURIFICATION; FIBROBLASTS; SURVIVAL; CSF C1 LOS ALAMOS NATL LAB,DIV LIFE SCI,CELL GROWTH DAMAGE & REPAIR GRP,LOS ALAMOS,NM 87545. NR 14 TC 45 Z9 45 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-1759 J9 J IMMUNOL METHODS JI J. Immunol. Methods PD AUG 18 PY 1995 VL 184 IS 2 BP 281 EP 283 DI 10.1016/0022-1759(95)00136-X PG 3 WC Biochemical Research Methods; Immunology SC Biochemistry & Molecular Biology; Immunology GA RR941 UT WOS:A1995RR94100017 PM 7658030 ER PT J AU JAP, BK LI, HL AF JAP, BK LI, HL TI STRUCTURE OF THE OSMO-REGULATED H2O-CHANNEL, AQP-CHIP, IN PROJECTION AT 3.5 ANGSTROM RESOLUTION SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Article DE AQUAPORIN-CHIP; ELECTRON CRYSTALLOGRAPHY; MEMBRANE PROTEIN; WATER CHANNEL ID INTEGRAL MEMBRANE-PROTEIN; MAJOR INTRINSIC PROTEIN; WATER CHANNEL CHIP28K; RAT-KIDNEY; ELECTRON-DIFFRACTION; SENSITIVE SPECIMENS; XENOPUS-OOCYTES; AQUAPORIN CHIP; PHOE PORIN; EXPRESSION AB An osmo-regulated H2O-channel, aquaporin-CHIP, from bovine red blood cell membranes was purified and reconstituted with lipids, forming two-dimensional crystalline patches that diffract to about 3.0 Angstrom resolution. Electron diffraction patterns and high-resolution images of the crystalline patches embedded in glucose were recorded and used to calculate the projection map at 3.5 Angstrom resolution. The map confirms that the osmoregulated H2O-channel basic packing unit is a tetramer and begins to reveal it's structural design. The basic architecture of the H2O-channel protein consists of a trapezoid-like envelope and a substructure located within the trapezoid that could play a crucial role in the channel structure itself; near this substructure there is a region of very low density, which is the probable site of the channel. The trapezoid-like envelope is composed of high density regions many of which can be interpreted as projections of alpha-helices along their axes. RP JAP, BK (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV LIFE SCI,BERKELEY,CA 94708, USA. FU NIGMS NIH HHS [GM51487] NR 44 TC 75 Z9 76 U1 0 U2 0 PU ACADEMIC PRESS (LONDON) LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-2836 J9 J MOL BIOL JI J. Mol. Biol. PD AUG 18 PY 1995 VL 251 IS 3 BP 413 EP 420 DI 10.1006/jmbi.1995.0444 PG 8 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA RP994 UT WOS:A1995RP99400008 PM 7544415 ER PT J AU BOWMAN, CD VENNERI, F AF BOWMAN, CD VENNERI, F TI NUCLEAR WASTE STORAGE AT YUCCA MOUNTAIN SO SCIENCE LA English DT Letter RP BOWMAN, CD (reprint author), LOS ALAMOS NATL LAB,ACCELERATOR DRIVEN TRANSMUTAT TECHNOL PROJECT OFF,LOS ALAMOS,NM 87544, USA. NR 1 TC 1 Z9 1 U1 0 U2 1 PU AMER ASSOC ADVAN SCIENCE PI WASHINGTON PA 1333 H ST NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD AUG 18 PY 1995 VL 269 IS 5226 BP 906 EP 907 DI 10.1126/science.269.5226.906 PG 2 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RP738 UT WOS:A1995RP73800004 PM 17807714 ER PT J AU CHOPRA, NG LUYKEN, RJ CHERREY, K CRESPI, VH COHEN, ML LOUIE, SG ZETTL, A AF CHOPRA, NG LUYKEN, RJ CHERREY, K CRESPI, VH COHEN, ML LOUIE, SG ZETTL, A TI BORON-NITRIDE NANOTUBES SO SCIENCE LA English DT Article ID MICROTUBULES; CARBON; C-60 AB The successful synthesis of pure boron nitride (BN) nanotubes is reported here, Multi-walled tubes with inner diameters on the order of 1 to 3 nanometers and with lengths up to 200 nanometers were produced in a carbon-free plasma discharge between a BN-packed tungsten rod and a cooled copper electrode. Electron energy-loss spectroscopy on individual tubes yielded B:N ratios of approximately 1, which is consistent with theoretical predictions of stable BN tube structures. C1 UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720. RI Zettl, Alex/O-4925-2016; OI Zettl, Alex/0000-0001-6330-136X; Crespi, Vincent/0000-0003-3846-3193 NR 15 TC 2076 Z9 2122 U1 63 U2 476 PU AMER ASSOC ADVAN SCIENCE PI WASHINGTON PA 1333 H ST NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD AUG 18 PY 1995 VL 269 IS 5226 BP 966 EP 967 DI 10.1126/science.269.5226.966 PG 2 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RP738 UT WOS:A1995RP73800032 PM 17807732 ER PT J AU LIU, YP NEWTON, MD AF LIU, YP NEWTON, MD TI SOLVENT REORGANIZATION AND DONOR/ACCEPTOR COUPLING IN ELECTRON-TRANSFER PROCESSES - SELF-CONSISTENT REACTION FIELD-THEORY AND AB-INITIO APPLICATIONS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter ID DONOR-ACCEPTOR SYSTEMS; NONEQUILIBRIUM SOLVATION; CHARGE-TRANSFER; DISTANCE DEPENDENCE; FREE-ENERGY; ABINITIO; SOLUTE; MODEL; ABSORPTION; CONTINUUM AB The solvent reorganization energy lambda(s), and the donor/acceptor (D/A) coupling element, H-DA, have been evaluated for electron transfer in the radical cations and anions (CH2)(n)(+/-), n = 4-13, exploiting the ab initio codes of Friesner et al., adapted so as to permit the evaluation of a nonequilibrium free energy (i.e.lambda(s)) in terms of equilibrium free energies of suitably defined charge densities placed in realistically shaped dielectric cavities. We obtain, for aqueous solution: (1) lambda(s) values obeying a nearly linear increase with inverse donor/acceptor separation (r(DA)), even though the complex solute structure is quite different from that of the traditional Marcus two-sphere model; (2) lambda(s) values for cations systematically less than for corresponding anion systems; (3) pronounced sensitivity of lambda(s), to conformation of terminal D/A groups and carbon framework; (4) exponential decay coefficients, beta, for H-DA in polar solution essentially identical to those calculated in vacuum. C1 BROOKHAVEN NATL LAB,DEPT CHEM,UPTON,NY 11973. NR 65 TC 82 Z9 82 U1 0 U2 8 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 17 PY 1995 VL 99 IS 33 BP 12382 EP 12386 DI 10.1021/j100033a004 PG 5 WC Chemistry, Physical SC Chemistry GA RQ016 UT WOS:A1995RQ01600004 ER PT J AU MILLER, WH AF MILLER, WH TI QUANTUM-MECHANICAL THEORY OF COLLISIONAL RECOMBINATION RATES SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter ID THERMAL RATE CONSTANTS; FLUX CORRELATION-FUNCTIONS; DISCRETE VARIABLE REPRESENTATION; CUMULATIVE REACTION PROBABILITY; RATE COEFFICIENTS; STABILIZATION; DISSOCIATION; DYNAMICS AB Quantum mechanical expressions for the pressure-dependent recombination rate (within the strong collision assumption) are presented which have a very similar form to those developed recently for rate constants of chemical reactions: eqs 11 and 12 express the recombination rate in terms of a flux autocorrelation function, and eqs 14-16 in terms of a cumulative recombination probability. The qualitative behavior of these functions is illustrated by several pedagogical examples. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. RP MILLER, WH (reprint author), UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720, USA. NR 30 TC 34 Z9 34 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 17 PY 1995 VL 99 IS 33 BP 12387 EP 12390 DI 10.1021/j100033a005 PG 4 WC Chemistry, Physical SC Chemistry GA RQ016 UT WOS:A1995RQ01600005 ER PT J AU BRESHEARS, WD AF BRESHEARS, WD TI FALLOFF BEHAVIOR IN THE THERMAL-DISSOCIATION RATE OF N2O SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID COLLISION RATE CONSTANTS; UNIMOLECULAR REACTIONS; NITROUS-OXIDE; OFF RANGE; DECOMPOSITION AB The striking difference in falloff behavior (pressure dependence) observed between N2O and Ar as collision partners in the thermal dissociation rate of N2O is noted. A mechanism proposed by Lindars and Hinshelwood [Proc. R. Sec. London, Ser. A 1955, A231, 178] involves transitions, both unimolecular and collision-induced, from the ground singlet electronic state to a dissociating triplet state. The mechanism was fit to a wide range of experimental data for neat N2O and N2O-Ar mixtures (273 individual data points), accounting quantitatively for the observed behavior [0.066 average rms deviation in In(k)]. Results derived for the limiting high- and low-pressure (M = Ar) rate constants exceed current recommended values by factors of similar to 1.4 and similar to 2, respectively, over the temperature range 925-2000 K. An alternative mechanistic interpretation involving a finite rate for intramolecular vibrational relaxation is discussed. RP BRESHEARS, WD (reprint author), LOS ALAMOS NATL LAB,CHEM REACT KINET & DYNAM GRP,MS J567,LOS ALAMOS,NM 87545, USA. NR 29 TC 10 Z9 10 U1 3 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 17 PY 1995 VL 99 IS 33 BP 12529 EP 12535 DI 10.1021/j100033a026 PG 7 WC Chemistry, Physical SC Chemistry GA RQ016 UT WOS:A1995RQ01600026 ER PT J AU KOLLER, H LOBO, RF BURKETT, SL DAVIS, ME AF KOLLER, H LOBO, RF BURKETT, SL DAVIS, ME TI SIO-CENTER-DOT-CENTER-DOT-CENTER-DOT-HOSI HYDROGEN-BONDS IN AS-SYNTHESIZED HIGH-SILICA ZEOLITES SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID INTERNAL SILANOL GROUPS; PROTON CHEMICAL-SHIFTS; SOLID-STATE SI-29; MFI-TYPE ZEOLITES; MAS-NMR; STRUCTURAL DEFECTS; CRYSTAL-STRUCTURE; ZSM-5 ZEOLITES; H-1; SPECTROSCOPY AB The high-silica zeolites NON, DDR, MTW, AFI, and Mm synthesized with organic quaternary ammonium cations show in the as-synthesized form a line at 10.2 +/- 0.2 ppm in the H-1 MAS NMR spectra that does not originate from the organic structure directing agents (SDA's). This signal is assigned to SiO-... HOSi hydrogen bonds between defect sites with an 0 ... 0 distance of 2.7 Angstrom. The presence of Q(3) sites is confirmed by Si-29 MAS NMR. The intensity of the line at 10.2 ppm in the H-1 MAS NMR spectra decreases when the positive charge of the quaternary ammonium cations is balanced by negative framework charge by the incorporation of aluminum or boron into the zeolite structure or when the amount of defects is reduced by using fluoride ions as mineralizing agents in the synthesis. Diffuse reflectance IR spectroscopy of high-silica MFI reveals a broad band centered at 3200 cm(-1) for the O-H stretching vibration of the SiO-... HOSi hydrogen bonds and the 0 ... 0 distance compares well to that obtained from]H-1 MAS NMR data. Heating the sample induces protonation of the siloxy groups of the hydrogen bonds due to the decomposition of the organic tetrapropylammonium cations followed by the disappearance of the SiO-... HOSi hydrogen bonds. For MFI prepared with deuterated tetrapropylammonium cations, it is found that approximately one to two hydrogen-bonded protons in these defect sites exist per quaternary ammonium cation. Other H-1 NMR lines are found at 6.5 and 4.5-5.5 ppm and are assigned to silanol. groups forming weaker hydrogen bonds and water molecules associated with alkali-metal cations, respectively. A model of the defect sites in as-synthesized high-silica zeolites is proposed. C1 CALTECH,DIV CHEM & CHEM ENGN,PASADENA,CA 91125. LOS ALAMOS NATL LAB,DIV THEORET,LOS ALAMOS,NM 87545. RI Koller, Hubert/G-5607-2011 OI Koller, Hubert/0000-0003-4029-8262 NR 43 TC 149 Z9 149 U1 5 U2 52 PU AMER CHEMICAL SOC PI WASHINGTON PA PO BOX 57136, WASHINGTON, DC 20037-0136 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD AUG 17 PY 1995 VL 99 IS 33 BP 12588 EP 12596 DI 10.1021/j100033a036 PG 9 WC Chemistry, Physical SC Chemistry GA RQ016 UT WOS:A1995RQ01600036 ER PT J AU WOLDEGABRIEL, G RENNE, P WHITE, TD SUWA, G DEHEINZELIN, J HART, WK HEIKEN, G AF WOLDEGABRIEL, G RENNE, P WHITE, TD SUWA, G DEHEINZELIN, J HART, WK HEIKEN, G TI AGE OF EARLY HOMINIDS - REPLY SO NATURE LA English DT Letter ID ETHIOPIA C1 BERKELEY GEOCHRONOL CTR,BERKELEY,CA 94709. UNIV CALIF BERKELEY,DEPT INTEGRAT BIOL,BERKELEY,CA 94720. UNIV TOKYO,DEPT ANTHROPOL,BUNKYO KU,TOKYO 113,JAPAN. INST ROYAL SCI NAT BELGIQUE,B-1040 BRUSSELS,BELGIUM. MIAMI UNIV,DEPT GEOL,OXFORD,OH 45056. RP WOLDEGABRIEL, G (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. NR 12 TC 4 Z9 4 U1 1 U2 2 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD AUG 17 PY 1995 VL 376 IS 6541 BP 559 EP 559 DI 10.1038/376559a0 PG 1 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA RP756 UT WOS:A1995RP75600035 ER PT J AU THOMAS, S AF THOMAS, S TI BARYONS AND DARK-MATTER FROM THE LATE DECAY OF A SUPERSYMMETRIC CONDENSATE SO PHYSICS LETTERS B LA English DT Article ID PRIMORDIAL NUCLEOSYNTHESIS; GRAVITINO; BARYOGENESIS; CONSTRAINTS; COSMOLOGY; PARTICLES; NEUTRALINO; DENSITIES; INFLATION; POLONYI AB The possibility that both the baryon asymmetry and dark matter arise from the late decay of a population of supersymmetric particles is considered. If the decay takes place below the LSP freeze out temperature, a nonthermal distribution of LSPs results. With conserved R parity these relic LSPs contribute to the dark matter density. A net asymmetry can exist in the population of decaying particles if it arises from coherent production along a supersymmetric flat direction. The asymmetry is transferred to baryons if the condensate decays through the lowest order nonrenormalizable operators which couple to R odd combinations of standard model particles. This also ensures at least one LSP per decay. The relic baryon and LSP number densities are then roughly equal. The ratio of baryon to dark matter densities is then naturally Omega(b)/Omega(LSP)similar to Omicron(m(b)/m(LSP)). The resulting upper limit on the LSP mass is model dependent but in the range Omicron(30-140) GeV. The total relic density is related to the order at which the flat direction which gives rise to the condensate is Lifted. The observed density is obtained for a direction which is lifted by a fourth order Planck scale suppressed operator in the superpotential. RP THOMAS, S (reprint author), STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94309, USA. NR 42 TC 57 Z9 57 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 AUG 17 PY 1995 VL 356 IS 2-3 BP 256 EP 263 DI 10.1016/0370-2693(95)00772-D PG 8 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA RP768 UT WOS:A1995RP76800018 ER PT J AU WILLIAMS, PT AF WILLIAMS, PT TI PHYSICAL-ACTIVITY AND PUBLIC-HEALTH SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION LA English DT Letter RP WILLIAMS, PT (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720, USA. NR 5 TC 4 Z9 4 U1 0 U2 0 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 AUG 16 PY 1995 VL 274 IS 7 BP 533 EP 534 PG 2 WC Medicine, General & Internal SC General & Internal Medicine GA RN466 UT WOS:A1995RN46600013 PM 7629975 ER PT J AU STEVENS, RG AF STEVENS, RG TI RISK OF PREMENOPAUSAL BREAST-CANCER AND USE OF ELECTRIC BLANKETS SO AMERICAN JOURNAL OF EPIDEMIOLOGY LA English DT Letter RP STEVENS, RG (reprint author), PACIFIC NW LAB, POB 999, RICHLAND, WA 99352 USA. NR 7 TC 16 Z9 18 U1 1 U2 1 PU AMER J EPIDEMIOLOGY PI BALTIMORE PA 624 N BROADWAY RM 225, BALTIMORE, MD 21205 SN 0002-9262 J9 AM J EPIDEMIOL JI Am. J. Epidemiol. PD AUG 15 PY 1995 VL 142 IS 4 BP 446 EP 446 PG 1 WC Public, Environmental & Occupational Health SC Public, Environmental & Occupational Health GA RN514 UT WOS:A1995RN51400011 PM 7625411 ER PT J AU GUIDRY, MW WU, CL FENG, DH AF GUIDRY, MW WU, CL FENG, DH TI THE DYNAMICAL PAULI EFFECT SO ANNALS OF PHYSICS LA English DT Article ID SYMMETRY MODEL; DEFORMED-NUCLEI; GEOMETRICAL STRUCTURE; 2-NUCLEON TRANSFER; 2-NEUTRON TRANSFER; HEAVY-IONS; FERMION; MASSES; STATES AB The Dynamical Pauli Effect of the Fermion Dynamical Symmetry Model is reviewed. We conclude that there is strong empirical evidence from a variety of observations in support of this effect, and we propose new experiments that can test its pervasiveness. It is suggested that the Dynamical Pauli Effect is a fundamental principle of many-body physics that unifies many well-known but seemingly independent properties of collective nuclear systems. We argue that there is a direct link between the Dynamical Pauli Effect and the appearance of gaps in the deformed single-particle spectrum such as the ones found at nucleon numbers 98 and 152 at normal deformation, and nucleon number 64 in superdeformation. Thus we propose that the Dynamical Pauli Effect may provide a simple, microscopic, and quantitative explanation for the appearance of many such gaps. (C) 1995 Academic Press, Inc. C1 OAK RIDGE NATL LAB,DIV PHYS,OAK RIDGE,TN 37831. JOINT INST HEAVY ION RES,OAK RIDGE,TN 37831. DREXEL UNIV,DEPT PHYS & ATMOSPHER SCI,PHILADELPHIA,PA 19104. CHUNG YUAN CHRISTIAN UNIV,DEPT PHYS,CHUNGLI 32023,TAIWAN. RP GUIDRY, MW (reprint author), UNIV TENNESSEE,DEPT PHYS,KNOXVILLE,TN 37996, USA. NR 50 TC 3 Z9 3 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525B STREET, SUITE 1900, SAN DIEGO, CA 92101-4495 SN 0003-4916 J9 ANN PHYS-NEW YORK JI Ann. Phys. PD AUG 15 PY 1995 VL 242 IS 1 BP 135 EP 187 DI 10.1006/aphy.1995.1077 PG 53 WC Physics, Multidisciplinary SC Physics GA RR434 UT WOS:A1995RR43400005 ER PT J AU MICHELBEYERLE, ME SMALL, GJ AF MICHELBEYERLE, ME SMALL, GJ TI PHOTOSYNTHESIS AND THE BACTERIAL REACTION-CENTER SO CHEMICAL PHYSICS LA English DT Editorial Material C1 IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011. IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RP MICHELBEYERLE, ME (reprint author), TECH UNIV MUNICH,LEHRSTUHL PHYS & THEORET CHEM,LICHTENBERGSTR 4,D-85748 GARCHING,GERMANY. NR 0 TC 14 Z9 14 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0104 J9 CHEM PHYS JI Chem. Phys. PD AUG 15 PY 1995 VL 197 IS 3 BP 223 EP 224 DI 10.1016/0301-0104(95)90059-4 PG 2 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RT134 UT WOS:A1995RT13400001 ER PT J AU SMALL, GJ AF SMALL, GJ TI ON THE VALIDITY OF THE STANDARD MODEL FOR PRIMARY CHARGE SEPARATION IN THE BACTERIAL REACTION-CENTER SO CHEMICAL PHYSICS LA English DT Review ID PHOTOSYNTHETIC REACTION CENTERS; ENERGY-TRANSFER DYNAMICS; ELECTRON-DONOR STATE; SELECTIVE FLUORESCENCE SPECTROSCOPY; RHODOBACTER-SPHAEROIDES R-26; HOLE-BURNING SPECTROSCOPY; B800-B850 ANTENNA COMPLEX; DYE-DOPED POLYMERS; RHODOPSEUDOMONAS-VIRIDIS; EXCITED-STATE AB In the standard model the primary electron donor state (P*) is localized on the special pair, meaning that the coupling between the lowest excited state (P_) of the special pair and charge transfer states involving radical anions of accessory cofactors is weak. This model is scrutinized using hole burning data for bacterial and green plan reaction centers (RC), antenna protein complexes and pi pi* states of probe molecules imbedded in glasses and polymers. Attention is focused on the linear electron-phonon coupling strength (optical reorganization energy) and the dynamics afforded by the zero-phonon hole of the P* <-- P transition. The hole burning data, together with the structural differences between the special pair of bacterial and green plant RC as well as quantum chemical calculations pertaining to the contribution of internal charge transfer states (of P) to P_, indicate that the standard model is invalid. A model is proposed that has P_ strongly coupled to a quasi-degenerate P+BL- state, where B-L is the accessory bacteriochlorophyll on the L branch of the RC. In the adiabatic limit this model appears to be capable of explaining the non-single exponential decay of P870* (Rhodobacter sphaeroides) while resolving a serious discrepancy between the hole burning and time domain results on the decay of P*. In the strong coupling limit, the long-standing question of whether or not P+BL- serves as a real or virtual state in the primary charge separation process becomes irrelevant. The model, especially in the adiabatic limit, may well provide the basis for understanding the extraordinarily fast energy transfer dynamics from higher energy Q(y)-states to P* in the bacterial RC. Potential problems with the strong coupling model are considered and possible approaches to its testing discussed. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RP SMALL, GJ (reprint author), IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011, USA. NR 98 TC 72 Z9 75 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0104 J9 CHEM PHYS JI Chem. Phys. PD AUG 15 PY 1995 VL 197 IS 3 BP 239 EP 257 DI 10.1016/0301-0104(95)00089-7 PG 19 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RT134 UT WOS:A1995RT13400003 ER PT J AU CHANG, HC JANKOWIAK, R REDDY, NRS SMALL, GJ AF CHANG, HC JANKOWIAK, R REDDY, NRS SMALL, GJ TI PRESSURE-DEPENDENCE OF PRIMARY CHARGE SEPARATION IN A PHOTOSYNTHETIC REACTION-CENTER SO CHEMICAL PHYSICS LA English DT Article ID BACTERIAL REACTION CENTERS; RHODOBACTER-SPHAEROIDES R-26; II REACTION CENTERS; PHOTOSYSTEM-II; RHODOPSEUDOMONAS-VIRIDIS; HYDROSTATIC-PRESSURE; TRANSFER DYNAMICS; ENERGY-TRANSFER; 3A RESOLUTION; PROTEIN AB Spectral hole burning is used to study the pressure dependence of the Q(y) absorption spectrum and primary charge separation kinetics of the D1-D2-cyt b(559) reaction center complex of photosystem II. The 4.2 K lifetime of P680*, the primary donor state, lengthens from 2.0 ps at 0.1 MPa to 7.0 ps at 267 MPa. Importantly, this effect is irreversible (plastic), in sharp contrast with the elastic effects of pressure on the low-temperature absorption and non-line-narrowed hole spectrum of P680. These observations and data which show that the electron-phonon coupling is weakly dependent on pressure, suggest a model that has the plastic behavior of charge separation kinetics due mainly to the pressure dependence of the energy of the acceptor state and of the variance of the P680*-acceptor energy gap stemming from structural heterogeneity. Nonadiabatic rate expressions, which take into account the distribution of energy gap values, are used to estimate the linear pressure shift of the acceptor state energy for both the superexchange and two-step mechanisms for primary charge separation. For both mechanisms shifts in the vicinity of 1 cm(-1)/MPa are required to explain the data, a value which is not unreasonable based on pressure dependent studies of other systems. The results point to the marriage of hole burning and high pressures as having considerable potential for the study of primary transport dynamics in reaction center and antenna complexes. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT CHEM,AMES,IA 50011. RP CHANG, HC (reprint author), IOWA STATE UNIV SCI & TECHNOL,US DOE,AMES LAB,AMES,IA 50011, USA. NR 63 TC 32 Z9 33 U1 1 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0104 J9 CHEM PHYS JI Chem. Phys. PD AUG 15 PY 1995 VL 197 IS 3 BP 307 EP 321 DI 10.1016/0301-0104(95)00147-G PG 15 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RT134 UT WOS:A1995RT13400008 ER PT J AU BIOU, V SHU, F RAMAKRISHNAN, V AF BIOU, V SHU, F RAMAKRISHNAN, V TI X-RAY CRYSTALLOGRAPHY SHOWS THAT TRANSLATIONAL INITIATION-FACTOR IF3 CONSISTS OF 2 COMPACT ALPHA/BETA DOMAINS LINKED BY AN ALPHA-HELIX SO EMBO JOURNAL LA English DT Article DE ANOMALOUS SCATTERING; MULTIWAVELENGTH ANOMALOUS DISPERSION; RIBOSOME; SELENOMETHIONINE; TRANSLATION ID 30S RIBOSOMAL-SUBUNITS; ESCHERICHIA-COLI RIBOSOMES; RNA-BINDING DOMAIN; FACTOR-III; FLUORESCENCE POLARIZATION; CRYSTAL-STRUCTURE; CROSS-LINKING; PROTEIN; GENE; INFC AB The structures of the two domains of translational initiation factor IF3 from Bacillus stearothermophilus have been solved by X-ray crystallography using single wavelength anomalous scattering and multiwavelength anomalous diffraction, Each of the two domains has an alpha/beta topology, with an exposed beta-sheet that is reminiscent of several ribosomal and other RNA binding proteins, An alpha-helix that protrudes out from the body of the N-terminal domain towards the C-terminal domain suggests that IF3 consists of two RNA binding domains connected by an alpha-helix and that it may bridge two regions of the ribosome. This represents the first high resolution structural information on a translational initiation factor. C1 BROOKHAVEN NATL LAB,DEPT BIOL,UPTON,NY 11973. FU NIGMS NIH HHS [GM 44973] NR 49 TC 123 Z9 124 U1 0 U2 1 PU OXFORD UNIV PRESS UNITED KINGDOM PI OXFORD PA WALTON ST JOURNALS DEPT, OXFORD, ENGLAND OX2 6DP SN 0261-4189 J9 EMBO J JI Embo J. PD AUG 15 PY 1995 VL 14 IS 16 BP 4056 EP 4064 PG 9 WC Biochemistry & Molecular Biology; Cell Biology SC Biochemistry & Molecular Biology; Cell Biology GA RQ669 UT WOS:A1995RQ66900021 PM 7664745 ER PT J AU KU, TL WANG, L LUO, S SOUTHON, JR AF KU, TL WANG, L LUO, S SOUTHON, JR TI AL-26 IN SEAWATER AND AL-26/BE-10 AS PALEO-FLUX TRACER SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID PACIFIC-OCEAN; BE-10; ALUMINUM; PARTICLES; WATERS AB Measurements of water-column Al-26/Al-27 ratios above 850 m depth in the Pacific yield values in the range 10(-13)-10(-14), translating into Al-26 concentrations of 20-200 atoms kg(-1). The atomic ratio of Al-26/Be-10 in surface ocean is close to 1x10(-4), at least an order lower than the atmospheric production ratio. Surface-ocean particulate removal of Al is about 30 times more rapid than that of Be. The results of this first set of data on Al-26 in seawater also suggest that the source of Al-26 in the sea is dominated by spallation of Ar in the atmosphere (as opposed to eolian and cosmic-dust inputs) and that the ratio Al-26/Be-10 in marine sediments can be potentially used to decipher past variations of oceanic particle flux, hence biologic productivity. C1 LAWRENCE LIVERMORE NATL LAB,CTR ACCELERATOR MASS SPECTROMETRY,LIVERMORE,CA 94550. RP KU, TL (reprint author), UNIV SO CALIF,DEPT EARTH SCI,LOS ANGELES,CA 90089, USA. NR 28 TC 7 Z9 7 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 15 PY 1995 VL 22 IS 16 BP 2163 EP 2166 DI 10.1029/95GL02067 PG 4 WC Geosciences, Multidisciplinary SC Geology GA RT333 UT WOS:A1995RT33300022 ER PT J AU MYERS, SC WALLACE, TC BECK, SL SILVER, PG ZANDT, G VANDECAR, J MINAYA, E AF MYERS, SC WALLACE, TC BECK, SL SILVER, PG ZANDT, G VANDECAR, J MINAYA, E TI IMPLICATIONS OF SPATIAL AND TEMPORAL DEVELOPMENT OF THE AFTERSHOCK SEQUENCE FOR THE M(W) 8.3 JUNE 9, 1994 DEEP BOLIVIAN EARTHQUAKE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID FOCUS EARTHQUAKES; ZONES AB On June 9, 1994 the M(w) 8.3 Bolivia earthquake (636 km depth) occurred in a region which had not experienced significant, deep seismicity for at least 30 years. The mainshock and aftershocks were recorded in Bolivia on the BANJO and SEDA broadband seismic arrays and on the San Calixto Network. We used the joint hypocenter determination method to determine the relative location of the aftershocks. We have identified no foreshocks and 89 aftershocks (m > 2.2) for the 20-day period following the mainshock. The frequency of aftershock occurrence decreased rapidly, with only one or two aftershocks per day occuring after day two. The temporal decay of aftershock activity is similar to shallow aftershock sequences, but the number of aftershocks is two orders of magnitude less. Additionally, a m(b) similar to 6, apparently triggered earthquake occurred just 10 minutes after the mainshock about 330 km east-southeast of the mainshock at a depth of 671 km. The aftershock sequence occurred north and east of the mainshock and extends to a depth of 665 km. The aftershocks define a slab striking N68 degrees W and dipping 45 degrees NE. The strike, dip, and location of Be aftershock zone are consistent with this seismicity being confined within the downward extension of the subducted Nazca plate. The location and orientation of the aftershock sequence indicate that the subducted Nazca plate bends between the NNW striking zone of deep seismicity in western Brazil and the N-S striking zone of seismicity in central Bolivia. A tear in the deep slab is not necessitated by the data. A subset of the aftershock hypocenters cluster along a subhorizontal plane near the depth of the mainshock, favoring a horizontal fault plane. The horizontal dimensions of the mainshock [Beck et al., this issue; Silver et al., 1995] and slab defined by the aftershocks are approximately equal, indicating that the mainshock ruptured through the slab. C1 CARNEGIE INST WASHINGTON,DEPT TERR MAGNETISM,WASHINGTON,DC 20015. LAWRENCE LIVERMORE NATL LAB,INST GEOPHYS & PLANETARY PHYS,LIVERMORE,CA 94550. SAN CALIXTO OBSERV,LA PAZ,BOLIVIA. UNIV ARIZONA,SASO,TUCSON,AZ 85721. RP MYERS, SC (reprint author), UNIV ARIZONA,DEPT GEOSCI,TUCSON,AZ 85721, USA. RI Myers, Stephen/K-1368-2014 OI Myers, Stephen/0000-0002-0315-5599 NR 11 TC 34 Z9 34 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 15 PY 1995 VL 22 IS 16 BP 2269 EP 2272 DI 10.1029/95GL01600 PG 4 WC Geosciences, Multidisciplinary SC Geology GA RT333 UT WOS:A1995RT33300049 ER PT J AU TINKER, MA WALLACE, TC BECK, SL SILVER, PG ZANDT, G AF TINKER, MA WALLACE, TC BECK, SL SILVER, PG ZANDT, G TI AFTERSHOCK SOURCE MECHANISMS FROM THE JUNE 9, 1994, DEEP BOLIVIAN EARTHQUAKE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID FOCUS EARTHQUAKES AB The M(w) 8.3 Bolivia earthquake occurred on June 9, 1994, at a depth of 636 km. This is the largest deep event in recorded history and ruptured a portion of the down-going Nazca slab unknown to have ruptured previously. We recorded the main shock and aftershocks on the BANJO and SEDA portable, broadband seismic arrays deployed in Bolivia during this event. Myers et al. (this issue) identified and located 36 aftershocks (M>2) for the 10-day period following the main shock. We use a grid search technique to determine focal mechanisms for 12 of these aftershocks ranging in magnitude from 2.7 to 5.3. We compare the observed P to SV and SH ratios to a series of synthetics that represent different fault plane orientations. We find consistent focal mechanisms with the T-axis roughly horizontal and oriented approximately east-west, and the P-axis predominantly vertical. The aftershock focal mechanisms indicate a rotation of the P-axis within the slab from down-dip compression prior to the main shock to a near-vertical direction afterwards. This observation is consistent with the release of shear stress on the near-horizontal rupture plane and the subsequent rotation of the maximum compressive stress to a fault -normal orientation. C1 CARNEGIE INST WASHINGTON,DEPT TERR MAGNETISM,WASHINGTON,DC 20015. LAWRENCE LIVERMORE NATL LAB,IGPP,LIVERMORE,CA. LAWRENCE LIVERMORE NATL LAB,DEPT EARTH SCI,LIVERMORE,CA. RP TINKER, MA (reprint author), UNIV ARIZONA,DEPT GEOSCI,SO ARIZONA SEISM OBSERV,TUCSON,AZ 85721, USA. NR 12 TC 6 Z9 6 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 15 PY 1995 VL 22 IS 16 BP 2273 EP 2276 DI 10.1029/95GL01090 PG 4 WC Geosciences, Multidisciplinary SC Geology GA RT333 UT WOS:A1995RT33300050 ER PT J AU JIAO, WJ WALLACE, TC BECK, SL SILVER, PG ZANDT, G AF JIAO, WJ WALLACE, TC BECK, SL SILVER, PG ZANDT, G TI EVIDENCE FOR STATIC DISPLACEMENTS FROM THE JUNE 9, 1994 DEEP BOLIVIAN EARTHQUAKE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID FAULT AB The 1994 Bolivian Earthquake (M(W)=8.3) was recorded on-scale by 8 very-broadband stations deployed approximately 600 km south of the epicenter. When these seismograms are carefully converted to ground displacement, there appears to be a static offset which is on order of 2 cm. We have modeled the waveforms with a synthetic waveform method that contains near-, intermediate- and far-field terms. Although the synthetics are only calculated for an elastic half-space, they compare favorably with the observed waveform in terms of shape. However, the theoretical amplitude is 1/2 of the observed static offset, which probably reflects the limitations of a homogeneous half-space model and/or the instabilities in deconvolution. C1 CARNEGIE INST WASHINGTON,DEPT TERR MAGNETISM,WASHINGTON,DC 20015. LAWRENCE LIVERMORE NATL LAB,IGPP,LIVERMORE,CA 94550. LAWRENCE LIVERMORE NATL LAB,DEPT EARTH SCI,LIVERMORE,CA 94550. RP JIAO, WJ (reprint author), UNIV ARIZONA,SO ARIZONA SEISM OBSERV,DEPT GEOSCI,TUCSON,AZ 85721, USA. NR 20 TC 12 Z9 12 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0094-8276 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD AUG 15 PY 1995 VL 22 IS 16 BP 2285 EP 2288 DI 10.1029/95GL02071 PG 4 WC Geosciences, Multidisciplinary SC Geology GA RT333 UT WOS:A1995RT33300053 ER PT J AU RHODE, MA ROLLINS, RW MARKWORTH, AJ EDWARDS, KD NGUYEN, K DAW, CS THOMAS, JF AF RHODE, MA ROLLINS, RW MARKWORTH, AJ EDWARDS, KD NGUYEN, K DAW, CS THOMAS, JF TI CONTROLLING CHAOS IN A MODEL OF THERMAL PULSE COMBUSTION SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID TRACKING UNSTABLE ORBITS; LOW-DIMENSIONAL CHAOS; SYSTEM; ATTRACTORS; LASER AB We describe methods for automating the control and tracking of states within or near a chaotic attractor. The methods are applied in a simulation using a recently developed model of thermal pulse combustion as the dynamical system. The controlled state is automatically tracked while a parameter is slowly changed well beyond the usual flame-out point where the chaotic attractor ceases to exist because of boundary crisis. A learning strategy based on simple neural networks is applied to map-based proportional feedback control algorithms both with and without a recursive term. Adaptive recursive proportional feedback is found to track farther beyond the crisis (flame-out) boundary than does the adaptive non-recursive map-based control. We also found that a continuous-time feedback proportional to the derivative of a system variable will stabilize and track an unstable fixed point near the chaotic attractor. The positive results suggest that a pulse combustor, and other nonlinear systems, may be suitably controlled to reduce undesirable cyclic variability and extend their useful operating range. (C) 1995 Amenican Institute of Physics. C1 BATTELLE MEM INST,DEPT MECH ENGN,COLUMBUS,OH 43201. UNIV TENNESSEE,DEPT MECH & AEROSP ENGN,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,OAK RIDGE,TN 37831. RP RHODE, MA (reprint author), OHIO UNIV,DEPT PHYS & ASTRON,CONDENSED MATTER & SURFACE SCI PROGRAM,ATHENS,OH 45701, USA. NR 36 TC 23 Z9 24 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2224 EP 2232 DI 10.1063/1.360138 PG 9 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800008 ER PT J AU SINHA, K MASCARENHAS, A KURTZ, SR OLSON, JM AF SINHA, K MASCARENHAS, A KURTZ, SR OLSON, JM TI DETERMINATION OF FREE-CARRIER CONCENTRATION IN N-GAINP ALLOY BY RAMAN-SCATTERING SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID PHONON-PLASMON MODES; BAND-STRUCTURE; GA0.5IN0.5P; ALXGA1-XAS; IN1-XGAXP; ALGAINP; LAYERS; GROWTH AB We present results of Raman scattering from coupled phonon-plasmon modes in Se-doped n-Ga0.52In0.48P alloy. Due to the small energy separation between the Gamma- and the L-point conduction-band minima for this alloy composition, a significant fraction of the free carriers at room temperature are present in the L-conduction-band valley, giving rise to a multicomponent plasma. The carrier concentrations extracted from the Raman spectra for the different epilayers are in good agreement with the free electron concentrations determined by capacitance-voltage measurements. We employ the light scattering technique to extract the carrier concentration in the n-type emitter layer of a GaInP-based solar cell. (C) 1995 American Institute of Physics. RP SINHA, K (reprint author), NATL RENEWABLE ENERGY LAB,1617 COLE BLVD,GOLDEN,CO 80401, USA. NR 28 TC 9 Z9 10 U1 0 U2 5 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2515 EP 2519 DI 10.1063/1.360715 PG 5 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800050 ER PT J AU NELSON, AJ AF NELSON, AJ TI PHOTOEMISSION INVESTIGATION OF THE ZNSE/CDTE HETEROJUNCTION BAND DISCONTINUITY SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID SURFACE PHOTOVOLTAGE; CDTE(100); STATES AB Synchrotron radiation soft x-ray photoemission spectroscopy and reflection high-energy electron diffraction were used to investigate the structural and electronic properties at the ZnSe/CdTe(100) heterojunction interface. ZnSe overlayers were sequentially grown in steps on p-type CdTe(100) single crystals at 200 degrees C. In situ photoemission measurements were acquired after each growth in order to observe changes in the valence band electronic structure as well as changes in the Cd 4d, Zn 3d, and Te 4d core lines. The results were used to correlate the interfacial chemistry with the electronic structure and to directly determine the ZnSe/CdTe heterojunction valence band discontinuity and the consequent heterojunction band diagram. Results of these measurements reveal that the valence band offset is Delta E(v) = 0.20 eV. (C) 1995 American Institute of Physics. RP NELSON, AJ (reprint author), NATL RENEWABLE ENERGY LAB,GOLDEN,CO 80401, USA. NR 13 TC 1 Z9 1 U1 1 U2 6 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2537 EP 2540 DI 10.1063/1.360109 PG 4 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800053 ER PT J AU FOSTER, CM LI, Z BUCKETT, M MILLER, D BALDO, PM REHN, LE BAI, GR GUO, D YOU, H MERKLE, KL AF FOSTER, CM LI, Z BUCKETT, M MILLER, D BALDO, PM REHN, LE BAI, GR GUO, D YOU, H MERKLE, KL TI SUBSTRATE EFFECTS ON THE STRUCTURE OF EPITAXIAL PBTIO3 THIN-FILMS PREPARED ON MGO, LAALO3, AND SRTIO3 BY METALORGANIC CHEMICAL-VAPOR-DEPOSITION SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID PLANAR WAVE-GUIDES; DOMAIN FORMATION; GROWTH; MODES AB Epitaxial PbTiO3 films were prepared by metalorganic chemical-vapor deposition on MgO(001)-, SrTiO3(001)-, and LaAlO3(001)-oriented substrates. Four-circle x-ray diffraction, transmission electron microscopy, Rutherford backscattering (RES) channeling, and optical waveguiding were performed to characterize the deposited films. Epitaxial, single-crystal films were obtained on all three substrate materials under the same growth conditions. However, the defect structure of the films, including grain tilting, threading dislocation density, and 90 degrees domain formation, was strongly dependent on the choice of substrate material. Films grown on MgO(001) and LaAlO3(001) (pseudocubic indices) substrates are nominally c-axis oriented; however, the PbTiO3 grains in the film form a fourfold domain structure, with the grains tilted similar to 0.6 degrees and similar to 0.7 degrees, respectively; toward the [100] directions (cubic or pseudo-cubic) of the substrates. In addition, these films contain a significant volume fraction of 90 degrees-domain (a-axis) structures with a critical thickness h(c) for domain formation below the detection level of our experiments (h(c) greater than or equal to 100 Angstrom). Together, these structural defects result in a low RES channeling yield reduction. In contrast, films grown on SrTiO3(001) substrates showed no tilting of the c-axis grains and a minimum RES channeling yield of as low as similar to 3%. In addition, we observed that below a critical film thickness of h(c) similar to 1500 Angstrom, 90 degrees domain formation was completely suppressed resulting in a nearly perfect single-crystal structure. The refractive indices and optical birefringence of the films were measured as a function-of wavelength using the film-prism coupling method. Both the ordinary and extraordinary refractive indices for films grown on MgO(001) and LaAlO3(001) were higher than that of single-crystal PbTiO3; however, the optical birefringence of films grown on MgO(001) was reduced from that of the bulk. For films grown an SrTiO3(001), the ordinary refractive index was very close to that of single-crystal PbTiO3. We correlate the refractive index values and the reduced birefringence to the degree of residual strain and the volume fraction of 90 degrees domains in the samples, respectively. (C) 1995 American Institute of Physics. RP FOSTER, CM (reprint author), ARGONNE NATL LAB,DIV MAT SCI,9700 S CASS AVE,ARGONNE,IL 60439, USA. RI You, Hoydoo/A-6201-2011 OI You, Hoydoo/0000-0003-2996-9483 NR 41 TC 160 Z9 161 U1 2 U2 21 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2607 EP 2622 DI 10.1063/1.360121 PG 16 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800066 ER PT J AU FENG, Z KOMVOPOULOS, K AF FENG, Z KOMVOPOULOS, K TI EFFECT OF AMORPHOUS-CARBON FILM STRUCTURE ON DIAMOND NUCLEATION SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID CHEMICAL-VAPOR-DEPOSITION; VACUUM-ARC DEPOSITION; MICROWAVE-PLASMA; GROWTH; ENHANCEMENT; SUBSTRATE; SILICON AB The effect of the structure of amorphous carbon films on diamond nucleation was investigated with a microwave plasma-enhanced chemical-vapor-deposition system. The films were synthesized on smooth silicon surfaces using a vacuum are technique. Different film structures were obtained by varying the negative pulsed bias voltage from approximately zero to -1.0 kV. The maximum film density and etching resistance in a pure hydrogen plasma were obtained for a pulsed bias voltage equal to -200 V. It was determined that these films contained the highest percentage of tetrahedrally bonded (sp(3)) atomic carbon configurations. The carbon-coated substrates were first exposed to a low-temperature high-methane-concentration hydrogen plasma before initiating the diamond nucleation experiments. The higher nucleation density (similar to 3 X 10(9) cm(-2)) and better quality of diamond films corresponded to a pulsed bias voltage of -200 V. Increasing the magnitude of the negative pulsed bias voltage resulted in significantly lower nucleation densities and the formation of relatively larger particles. The enhancement of the diamond nucleation density for a pulsed bias voltage of -200 V is attributed to both the inherent high etching resistance of the produced amorphous carbon films, resulting from the high content of sp(3) bonds, and the pretreatment process which yielded a high density of high-surface free-energy nucleation sites. (C) 1995 American institute of Physics. C1 UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA. RP UNIV CALIF BERKELEY, DEPT MECH ENGN, BERKELEY, CA 94720 USA. NR 26 TC 11 Z9 13 U1 0 U2 2 PU AMER INST PHYSICS PI MELVILLE PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA SN 0021-8979 EI 1089-7550 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2720 EP 2724 DI 10.1063/1.360069 PG 5 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800084 ER PT J AU BROWN, WK WOHLETZ, KH AF BROWN, WK WOHLETZ, KH TI DERIVATION OF THE WEIBULL DISTRIBUTION BASED ON PHYSICAL PRINCIPLES AND ITS CONNECTION TO THE ROSIN-RAMMLER AND LOGNORMAL DISTRIBUTIONS SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID SEQUENTIAL FRAGMENTATION AB We describe a physically based derivation of the Weibull distribution with respect to fragmentation processes. In this approach we consider the result of a single-event fragmentation lending to a branching tree of cracks that show geometric scale invariance (fractal behavior). With this approach, because the Rosin-Rammler type distribution is just the integral form of the Weibull distribution, it, too, has a physical basis. In further consideration of mass distributions developed by fragmentation processes, we show that one particular mass distribution closely resembles the empirical lognormal distribution. This result suggests that the successful use of the lognormal distribution to describe fragmentation distributions may have been simply fortuitous. (C) 1995 American Institute of Physics. C1 LASSEN COLL,DIV MATH SCI,SUSANVILLE,CA 96130. LOS ALAMOS NATL LAB,DIV EARTH & ENVIRONM SCI,LOS ALAMOS,NM 87545. NR 18 TC 112 Z9 116 U1 1 U2 19 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2758 EP 2763 DI 10.1063/1.360073 PG 6 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800088 ER PT J AU CARLSTEN, BE AF CARLSTEN, BE TI STABLE OFF-AXIS ELECTRON ORBITS IN A LONGITUDINAL-WIGGLER FREE-ELECTRON LASER SO JOURNAL OF APPLIED PHYSICS LA English DT Article ID MAGNETIC-FIELD; RADIATION; EMISSION AB Off-axis electron orbits are investigated for a longitudinal-wiggler free-electron laser. Orbits are found that are very similar to orbits occurring for standard helical wigglers which produce transverse fields and these orbits can be classified as group-I, group-II, and reverse-group-II orbits. These orbits are shown to be stable in both first and second order from Liapounov's first stability theorem. The stability is verified with numerical simulations. RP CARLSTEN, BE (reprint author), LOS ALAMOS NATL LAB,POB 1663,LOS ALAMOS,NM 87545, USA. NR 11 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2811 EP 2816 DI 10.1063/1.360080 PG 6 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800096 ER PT J AU FENG, JQ DEPAOLI, DW TSOURIS, C SCOTT, TC AF FENG, JQ DEPAOLI, DW TSOURIS, C SCOTT, TC TI SPRAYING FINE FLUID PARTICLES IN INSULATING FLUID SYSTEMS BY ELECTROSTATIC POLARIZATION FORCES SO JOURNAL OF APPLIED PHYSICS LA English DT Note AB It is experimentally demonstrated that electrostatic polarization forces can in principle be utilized in generating fine bubbles and droplets, despite the lack of charge carriers that have traditionally been thought to be necessary for successful electrostatic spraying. Under the condition that the permittivity of the dispersed phase is lower than that of the continuous phase, such as when gas bubbles are sprayed into insulating liquids, the spraying behavior is regular and easy to control. If the permittivity of the dispersed phase is higher than that of the continuous phase, such as when insulating Liquids are sprayed into gases, the spraying behavior lacks regularity and further research is needed before pure polarization forces can find significant applications in practical processes. (C) 1995 American Institute of Physics. C1 OAK RIDGE NATL LAB,DIV CHEM TECHNOL,OAK RIDGE,TN 37831. RI Tsouris, Costas/C-2544-2016 OI Tsouris, Costas/0000-0002-0522-1027 NR 7 TC 1 Z9 1 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2860 EP 2862 DI 10.1063/1.360090 PG 3 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800107 ER PT J AU JIA, QX WU, XD REAGOR, DW FOLTYN, SR HOULTON, RJ TIWARI, P MOMBOURQUETTE, C CAMPBELL, IH GARZON, F PETERSON, DE AF JIA, QX WU, XD REAGOR, DW FOLTYN, SR HOULTON, RJ TIWARI, P MOMBOURQUETTE, C CAMPBELL, IH GARZON, F PETERSON, DE TI SUPERCONDUCTOR GDBA2CU3O7-DELTA EDGE JUNCTIONS WITH LATTICE-MATCHED Y0.6PR0.4BA2CU3O7-DELTA BARRIERS SO JOURNAL OF APPLIED PHYSICS LA English DT Note ID NORMAL-STATE PROPERTIES; JOSEPHSON-JUNCTIONS; HIGH-TC; THIN-FILMS AB High-temperature-superconductor Josephson junctions with an edge geometry of superconductor/ normal-metal/superconductor have been fabricated on yttria-stabilized zirconia substrates by engineering the electrode and N-layer material to reduce the lattice mismatches (a, b, and c). With GdBa2Cu3O7-delta as electrodes and Pr-doped Y0.6Pr0.4Ba2Cu3O7-delta as a barrier, the lattice mismatches from electrode and barrier layer are reduced to a very low level. The junctions fabricated with such a design demonstrate resistively shunted junction current-voltage characteristics under de bias at temperatures in the range of 77-88 K. The quite low specific interface resistivity on the order of 10(-10) Omega cm(2) indicates that the junction performance is controlled by the normal-metal (N) layer material instead of the interfaces. The use of lattice-matched electrode and N-layer material is one of the key design rules to obtain controllable high-temperature superconductor Josephson junctions. (C) 1995 American Institute of Physics. RP JIA, QX (reprint author), LOS ALAMOS NATL LAB,CTR SUPERCONDUCT TECHNOL,LOS ALAMOS,NM 87545, USA. RI Jia, Q. X./C-5194-2008 NR 22 TC 6 Z9 6 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-8979 J9 J APPL PHYS JI J. Appl. Phys. PD AUG 15 PY 1995 VL 78 IS 4 BP 2871 EP 2873 DI 10.1063/1.360094 PG 3 WC Physics, Applied SC Physics GA RP718 UT WOS:A1995RP71800111 ER PT J AU LEAHY, DJ OSBORN, DL CYR, DR NEUMARK, DM AF LEAHY, DJ OSBORN, DL CYR, DR NEUMARK, DM TI PREDISSOCIATION DYNAMICS OF THE O2B (3)SIGMA(-)(U) STATE - VIBRATIONAL-STATE DEPENDENCE OF THE PRODUCT FINE-STRUCTURE DISTRIBUTION SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID SCHUMANN-RUNGE BANDS; FLIGHT MASS-SPECTROMETER; REGION 175-205 NM; ABSORPTION-BANDS; OXYGEN MOLECULES; CROSS-SECTIONS; O-16 O-18; PHOTODISSOCIATION; SYSTEM; O-2 AB The predissociation of the O2B (3) Sigma(u)(-) state (v=0-11) is investigated using fast beam photofragment translational spectroscopy. The energy resolution of the experiment, 7-10 meV, is sufficient to yield the correlated fine structure distribution P(j(1),j(2)) for the two O(P-3(j)) fragments. These spin-orbit branching ratios depend markedly on the vibrational quantum number, providing detailed insight into a relatively unexplored facet of molecular dissociation dynamics. No less than four repulsive states are expected to mediate the predissociation of the B (3) Sigma(u)(-) state, primarily via spin-orbit coupling, and the couplings among these states at long range (R similar to 5-7 Angstrom) determine the final spin-orbit distributions P(j(1),j(2)) We have attempted to model these distributions in both the adiabatic and diabatic limits, with neither limit proving very successful. A more phenomenological approach to fitting our data suggests that products with j(1) = j(2) = 2 result from single transitions between adiabatic potentials at long range, whereas the populations in the other product states are determined by multiple transitions among the repulsive states. (C) 1995 American institute of Physics. C1 UNIV CALIF BERKELEY,DEPT CHEM,BERKELEY,CA 94720. LAWRENCE BERKELEY LAB,DIV CHEM SCI,BERKELEY,CA 94720. RI Osborn, David/A-2627-2009; Neumark, Daniel/B-9551-2009 OI Neumark, Daniel/0000-0002-3762-9473 NR 64 TC 46 Z9 46 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD AUG 15 PY 1995 VL 103 IS 7 BP 2495 EP 2508 DI 10.1063/1.469671 PG 14 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA RP455 UT WOS:A1995RP45500012 ER PT J AU BANKS, TA ROUSE, BT KERLEY, MK BLAIR, PJ GODFREY, VL KUKLIN, NA BOULEY, DM THOMAS, J KANANGAT, S MUCENSKI, ML AF BANKS, TA ROUSE, BT KERLEY, MK BLAIR, PJ GODFREY, VL KUKLIN, NA BOULEY, DM THOMAS, J KANANGAT, S MUCENSKI, ML TI LYMPHOTOXIN-ALPHA-DEFICIENT MICE - EFFECTS ON SECONDARY LYMPHOID ORGAN DEVELOPMENT AND HUMORAL IMMUNE RESPONSIVENESS SO JOURNAL OF IMMUNOLOGY LA English DT Article ID TUMOR-NECROSIS-FACTOR; FACTOR TNF-ALPHA; SCID MICE; CELL-SURFACE; T-CELLS; BETA; RECONSTITUTION; LYMPHOCYTES; INFECTION; MOUSE AB Targeted mutagenesis in embryonic stem cells was used to generate mice deficient in lymphotoxin-alpha (LT-alpha). Mice lacking LT-alpha(-/-) (LT-alpha(-/-) mice) exhibit a phenotype dominated by defects in secondary lymphoid organ development. LT-alpha(-/-) mice lack lymph nodes and Peyer's patches, and possess spleens in which the usual architecture is disrupted. However, in a few of the mutants, abnormal lymph node-like structures were observed, mainly within the mesenteric fat. Abnormal clusters of lymphocytes were also found to accumulate in the periportal and perivascular regions of the liver and lung of LT-alpha(-/-) mice. Yet, lymphocytes from LT-alpha(-/-) mice appeared phenotypically normal, expressing the expected ratios of B and T cell surface markers as well as the lymphocyte homing marker, L-selectin. In addition, bone marrow cells from LT-alpha(-/-) mice were able to successfully reconstitute the lymphoid organs of severe combined immunodeficient mice. However, LT-alpha(-/-) mutant mice examined for humoral immune responsiveness were found to be impaired in their ability to respond to different Ag. These data illustrate the utility of this mouse model as a system for understanding lymphoid organ development and its effects on immune responsiveness. C1 UNIV TENNESSEE,DEPT MICROBIOL,KNOXVILLE,TN 37996. OAK RIDGE NATL LAB,DIV BIOL,OAK RIDGE,TN 37831. FU NEI NIH HHS [EY05093] NR 27 TC 349 Z9 352 U1 2 U2 4 PU AMER ASSOC IMMUNOLOGISTS PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0022-1767 J9 J IMMUNOL JI J. Immunol. PD AUG 15 PY 1995 VL 155 IS 4 BP 1685 EP 1693 PG 9 WC Immunology SC Immunology GA RN464 UT WOS:A1995RN46400006 PM 7636227 ER PT J AU RAWERS, JC FEICHTINGER, HK AF RAWERS, JC FEICHTINGER, HK TI ROLL-BONDED NITROGENATED 201-STAINLESS-STEEL SO JOURNAL OF MATERIALS SCIENCE LA English DT Article ID CR-NI ALLOYS; PRESSURE AB An alternative to high-pressure melting was used to produce sheets of high-nitrogen stainless steel. Hot isostatic pressure diffusion of nitrogen into thin sheets of 201 stainless steel resulted in enhanced nitrogen concentrations unobtainable in commercial grade stainless steels. Several different nitrogen enhancement techniques were attempted. Hot roll-bonding was then used to produce thick laminates. The resulting tensile strengths were dependent upon the nitrogen concentration of the laminates and were similar to the tensile strength obtained for high-pressure melted nitrogen stainless steels. C1 SWISS INST TECHNOL,INST MET,ZURICH,SWITZERLAND. RP RAWERS, JC (reprint author), US BUR MINES,ALBANY RES CTR,ALBANY,OR 97321, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU CHAPMAN HALL LTD PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8HN SN 0022-2461 J9 J MATER SCI JI J. Mater. Sci. PD AUG 15 PY 1995 VL 30 IS 16 BP 4103 EP 4106 DI 10.1007/BF00360715 PG 4 WC Materials Science, Multidisciplinary SC Materials Science GA RQ012 UT WOS:A1995RQ01200022 ER PT J AU THOMPSON, AW DONG, H AF THOMPSON, AW DONG, H TI EFFECTS OF HYDROGEN ON THERMALLY ACTIVATED DISLOCATION-MOTION IN IRON - REPLY SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING LA English DT Note DE HYDROGEN; DISLOCATIONS; IRON; THERMALLY ACTIVATED MOTION ID ALLOYS; STEEL; FE C1 CARNEGIE MELLON RES INST,PITTSBURGH,PA 15213. RP THOMPSON, AW (reprint author), UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,MS 66,1 CYCLOTRON RD,BERKELEY,CA 94720, USA. NR 12 TC 0 Z9 0 U1 0 U2 2 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0921-5093 J9 MAT SCI ENG A-STRUCT JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process. PD AUG 15 PY 1995 VL 199 IS 2 BP 243 EP 244 DI 10.1016/0921-5093(95)09824-0 PG 2 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Science & Technology - Other Topics; Materials Science; Metallurgy & Metallurgical Engineering GA RV344 UT WOS:A1995RV34400015 ER PT J AU VANGINNEKEN, A AF VANGINNEKEN, A TI FLUCTUATIONS OF MUON ENERGY-LOSS AND SIMULATION OF IONIZATION COOLING SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article AB A Monte Carlo program to simulate muon ionization cooling is outlined. A Vavilov-type distribution to represent restricted ionization energy losses is derived. Above the restriction threshold mu e scattering is treated event-by-event. Likewise mu-nucleus elastic scattering is simulated by a Gaussian below some angular threshold and treated individually above it. Other processes included are: incoherent mu p scattering with nuclear protons, bremsstrahlung, pair production, and deep inelastic nuclear scattering. A small sample of results obtained with the code is included. RP VANGINNEKEN, A (reprint author), FERMILAB NATL ACCELERATOR LAB,POB 500,BATAVIA,IL 60510, USA. NR 16 TC 11 Z9 11 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 15 PY 1995 VL 362 IS 2-3 BP 213 EP 223 DI 10.1016/0168-9002(95)00322-3 PG 11 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RP777 UT WOS:A1995RP77700001 ER PT J AU TALBERT, WL HSU, HH AF TALBERT, WL HSU, HH TI TARGET INTERACTION LENGTHS FOR CYLINDRICAL TARGETS USED IN PRODUCTION OF RADIOACTIVE BEAMS BY HIGH-ENERGY PROTONS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article ID TISOL FACILITY; TRIUMF AB Cylindrical targets used for the production of radioactive beams by high-energy protons are analyzed in terms of target interaction length for some typical target systems. The analysis, using the Monte Carlo based LAHET code system, first determined applicable parameters of the beam/target interaction at 500 MeV incident proton energy. The analysis was then extended to other commonly-available proton energies up to 1000 MeV. C1 LOS ALAMOS NATL LAB,LOS ALAMOS,NM 87545. RP TALBERT, WL (reprint author), AMPARO CORP,SANTA FE,NM 87504, USA. NR 6 TC 5 Z9 5 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 15 PY 1995 VL 362 IS 2-3 BP 229 EP 233 DI 10.1016/0168-9002(95)00297-9 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RP777 UT WOS:A1995RP77700003 ER PT J AU LU, HL SOMMER, WF BORDEN, MJ AF LU, HL SOMMER, WF BORDEN, MJ TI REVIEW OF CARBON STRIPPER FOIL LIFETIME SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Review ID IRRADIATION DAMAGE; DEPOSITION AB The influencing factors on the lifetime of carbon stripper foil were reviewed, which included methods of preparation, thickness and impurities of carbon foil, and the dose rate, fluence and mass of ions during ion bombardment etc., especially the methods of preparation. The mechanisms of foil failure were discussed. An access of improvement of the foil lifetime was proposed. C1 LOS ALAMOS NATL LAB,MST GRP 4,LOS ALAMOS,NM 87544. LOS ALAMOS NATL LAB,AOT GRP 2,LOS ALAMOS,NM 87544. RP LU, HL (reprint author), INST ATOM ENERGY,POB 275-55,BEIJING 102413,PEOPLES R CHINA. NR 20 TC 3 Z9 4 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 15 PY 1995 VL 362 IS 2-3 BP 239 EP 244 PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RP777 UT WOS:A1995RP77700005 ER PT J AU DEBBE, R GUSHUE, S MOSKOWITZ, B NORRIS, J OLNESS, J VIDEBAEK, F AF DEBBE, R GUSHUE, S MOSKOWITZ, B NORRIS, J OLNESS, J VIDEBAEK, F TI IN-BEAM TESTS OF A RING IMAGING CHERENKOV DETECTOR WITH A MULTIANODE PHOTOMULTIPLIER READOUT SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article AB A ring-imaging Cherenkov counter read out by a 100-channel PMT of active area 10 X 10 cm(2) was operated successfully in a test beam at the BNL AGS with several radiator gases, including the heavy fluorocarbon C4F10. Ring radii were measured for electrons, muons, pions and kaons over the particle momentum range from 2 to 12 GeV/c, and a best resolution of sigma(r)/r = 2.3% was obtained. C1 BROOKHAVEN NATL LAB,UPTON,NY 11973. NR 15 TC 6 Z9 6 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0168-9002 J9 NUCL INSTRUM METH A JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc. Equip. PD AUG 15 PY 1995 VL 362 IS 2-3 BP 253 EP 260 DI 10.1016/0168-9002(95)00227-8 PG 8 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA RP777 UT WOS:A1995RP77700007 ER EF