FN Thomson Reuters Web of Science™ VR 1.0 PT J AU RAMPINO, MR STOTHERS, RB AF RAMPINO, MR STOTHERS, RB TI GIVING CREDIT WHERE DUE SO SCIENTIFIC AMERICAN LA English DT Letter RP RAMPINO, MR (reprint author), NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025, USA. NR 2 TC 0 Z9 0 U1 0 U2 0 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 JAN PY 1991 VL 264 IS 1 BP 12 EP 12 PG 1 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EP163 UT WOS:A1991EP16300005 ER PT J AU BLACK, DC AF BLACK, DC TI WORLDS AROUND OTHER STARS SO SCIENTIFIC AMERICAN LA English DT Article C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP BLACK, DC (reprint author), NASA,INST LUNAR & PLANETARY,HOUSTON,TX 77058, USA. NR 5 TC 0 Z9 0 U1 0 U2 0 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 JAN PY 1991 VL 264 IS 1 BP 76 EP 82 PG 7 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EP163 UT WOS:A1991EP16300010 ER PT J AU OUTLAW, RA LEE, WS SANKARAN, SN WU, D CLARK, RK AF OUTLAW, RA LEE, WS SANKARAN, SN WU, D CLARK, RK TI TITANIUM ALUMINIDES - SURFACE-COMPOSITION EFFECTS AS A FUNCTION OF TEMPERATURE SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article ID AUGER-ELECTRON SPECTROSCOPY; OXIDATION RP OUTLAW, RA (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 16 TC 3 Z9 3 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JAN PY 1991 VL 25 IS 1 BP 171 EP 176 DI 10.1016/0956-716X(91)90375-B PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA EQ988 UT WOS:A1991EQ98800033 ER PT J AU DECKER, NH AF DECKER, NH TI NOTE ON THE PARALLEL EFFICIENCY OF THE FREDERICKSON-MCBRYAN MULTIGRID ALGORITHM SO SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING LA English DT Note DE PARALLEL MULTIGRID; PARALLEL MULTILEVEL ALGORITHMS; MULTIGRID AB Standard multigrid algorithms must lead to processor idle time on large-scale parallel computers because the coarsest grids have fewer points than processors. In some cases, this may be considered to be a disadvantage. Frederickson and McBryan [Multigrid Methods, Marcel Dekker, New York, 1988] show that retaining all points on all grid levels (using all processors) can lead to a "superconvergent" algorithm in that a very good convergence rate is obtained. Has the "parallel superconvergent" multigrid algorithm (PSMG) of Frederickson and McBryan solved the problem of implementing multigrid on a massively parallel single-instruction-multiple-data (SIMD) architecture? How much can be gained by retaining all points on all grid levels, keeping all processors busy? The purpose of this note is to compare the parallel efficiency of the PSMG algorithm to a standard multigrid algorithm. It is shown that the perfect processor utilization and the good convergence rates of the PSMG algorithm do lead to a more efficient algorithm for the special case of one (or fewer) grid points per processor. Normalized computation and communication requirements are given, so that the two types of algorithms can be compared directly. RP DECKER, NH (reprint author), NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665, USA. NR 12 TC 5 Z9 5 U1 0 U2 0 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER PH#382-9800, PHILADELPHIA, PA 19104-2688 SN 0196-5204 J9 SIAM J SCI STAT COMP PD JAN PY 1991 VL 12 IS 1 BP 208 EP 220 DI 10.1137/0912011 PG 13 WC Mathematics, Applied SC Mathematics GA EW356 UT WOS:A1991EW35600011 ER PT J AU FREDERICKSON, PO MCBRYAN, OA AF FREDERICKSON, PO MCBRYAN, OA TI NORMALIZED CONVERGENCE-RATES FOR THE PSMG METHOD SO SIAM JOURNAL ON SCIENTIFIC AND STATISTICAL COMPUTING LA English DT Note DE PARALLEL MULTIGRID; PARALLEL MULTILEVEL; MULTIGRID; PARALLEL; FAST SOLVER AB In a previous paper ["Parallel Superconvergent Multigrid," in Multigrid Methods, Marcel Dekker, New York, 1988] the authors introduced an efficient multiscale PDE solver for massively parallel architectures, which was called Parallel Superconvergent Multigrid, or PSMG. In this paper, sharp estimates are derived for the normalized work involved in PSMG solution-the number of parallel arithmetic and communication operations required per digit of error reduction. PSMG is shown to provide fourth-order accurate solutions of Poisson-type equations at convergence rates of .00165 per single relaxation iteration, and with parallel operation counts per grid level of 5.75 communications and 8.62 computations for each digit of error reduction. The authors show that PSMG requires less than one-half as many arithmetic and one-fifth as many communication operations, per digit of error reduction, as a parallel standard multigrid algorithm (RBTRB) presented recently by Decker [SIAM J. Sci. Statist. Comput., 12 (1991), pp. 208-220]. C1 UNIV COLORADO,DEPT COMP SCI,BOULDER,CO 80309. RP FREDERICKSON, PO (reprint author), NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035, USA. NR 8 TC 7 Z9 7 U1 0 U2 0 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER PH#382-9800, PHILADELPHIA, PA 19104-2688 SN 0196-5204 J9 SIAM J SCI STAT COMP PD JAN PY 1991 VL 12 IS 1 BP 221 EP 229 DI 10.1137/0912012 PG 9 WC Mathematics, Applied SC Mathematics GA EW356 UT WOS:A1991EW35600012 ER PT J AU DEYOUNG, RJ WILLIAMS, MD WALKER, GH SCHUSTER, GL LEE, JH AF DEYOUNG, RJ WILLIAMS, MD WALKER, GH SCHUSTER, GL LEE, JH TI A LUNAR ROVER POWERED BY AN ORBITING LASER DIODE-ARRAY SO SPACE POWER LA English DT Article AB A conceptual design of a high-power, long-duration lunar rover powered by a laser beam is proposed. The laser transmitter in lunar orbit consists of an SP-100 nuclear reactor prime power source providing 100 kW of electricity to a laser diode array that emits 50 kW of laser radiation. The laser radiation is beamed to the lunar surface where it is received by a GaAlAs solid-state, laser-to-electric converter. This converter provides 22 kW of electrical power to the rover vehicle for science, locomotion, and crew needs. The mass of the laser transmitter is approximately 5000 kg, whereas the mass of the rover power supply is 520 kg. The rover power unit is significantly less massive than alternative rover power units. RP DEYOUNG, RJ (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COUNCIL SOCIAL & ECON STUDIES PI WASHINGTON PA C/O EDITOR PO BOX 34070 NW, WASHINGTON, DC 20043 SN 0883-6272 J9 SPACE POWER PY 1991 VL 10 IS 1 BP 103 EP 127 PG 25 WC Engineering, Aerospace SC Engineering GA GB299 UT WOS:A1991GB29900007 ER PT J AU JENKINS, LM AF JENKINS, LM TI COUNTERMEASURES FOR MITIGATING THE EFFECTS OF GLOBAL ENVIRONMENT CHANGES SO SPACE POWER LA English DT Article; Proceedings Paper CT SPS 91 : POWER FROM SPACE CY 1991 CL ECOLE SUPER ELECT, GIF-SUR-YVETTE, FRANCE SP SOC ELECTRICIENS & ELECTRONICIENS, SOC INGENIEURES & SCI FRANCE HO ECOLE SUPER ELECT AB Increased concern over the effects of global climate change and depletion of the ozone layer has resulted in support for the Global Change Research Program. Research to understand Earth system processes is critical, but it falls short of providing ways of mitigating the effects of change. Options and alternatives need to be developed. Space-based concepts for environmental countermeasures should be considered in addition to Earth-based actions. Definition, analysis, demonstration and preparation of mitigation technology provide a basis for policy response if global change consequences are severe. RP JENKINS, LM (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,TECHNOLOGY PROJECT,HOUSTON,TX 77058, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COUNCIL SOCIAL & ECON STUDIES PI WASHINGTON PA C/O EDITOR PO BOX 34070 NW, WASHINGTON, DC 20043 SN 0883-6272 J9 SPACE POWER PY 1991 VL 10 IS 2 BP 153 EP 156 PG 4 WC Engineering, Aerospace SC Engineering GA GT737 UT WOS:A1991GT73700002 ER PT J AU LEWIS, JS AF LEWIS, JS TI CONSTRUCTION MATERIALS FOR AN SPS CONSTELLATION IN HIGHLY ECCENTRIC EARTH ORBIT SO SPACE POWER LA English DT Article AB Studies of the system architectures for acquisition, processing, and transportation of key non-terrestrial materials (structural metals, propellants, and radiation shielding) to near-Earth space suggest that the ideal target orbit for retrieval of materials from the Moon, nearby asteroids, and the Martian moons is a highly eccentric Earth orbit (HEEO) of almost any inclination. Such an orbit would be an excellent site for construction of an SPS constellation. I present a series of scenarios utilizing several modes of propulsion and including both propulsive and aerobraking modes of capture into the target orbit. Very high mass-payback ratios (MPRs) are possible in several of these scenarios. RP LEWIS, JS (reprint author), UNIV ARIZONA,NASA,SPACE ENGN RES CTR UTILIZAT LOCAL PLANETARY RESOURCES,TUCSON,AZ 85721, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU COUNCIL SOCIAL & ECON STUDIES PI WASHINGTON PA C/O EDITOR PO BOX 34070 NW, WASHINGTON, DC 20043 SN 0883-6272 J9 SPACE POWER PY 1991 VL 10 IS 3-4 BP 353 EP 362 PG 10 WC Engineering, Aerospace SC Engineering GA HY234 UT WOS:A1991HY23400006 ER PT J AU LEWIS, JS AF LEWIS, JS TI EXTRATERRESTRIAL SOURCES OF HE-3 FOR FUSION POWER SO SPACE POWER LA English DT Article AB Assuming that the technological difficulties associated with D-He-3 fusion (ignition temperature, neutron-producing side reactions) can be overcome, He-3 is likely to become the most valuable commodity in Solar System commerce. It is therefore important to assess the relative costs of acquiring He-3 from different sources. I present here a comparison of the energetic cost of acquiring, isolating and transporting He-3 to Earth from the two most attractive types of sources available, the lunar regolith and the atmospheres of the Jovian planets. I show that the total energy expended per tonne of He-3 retrieved from the atmosphere of Uranus is at least 1000 times less than that required to recover He-3 from the lunar regolith. RP LEWIS, JS (reprint author), UNIV ARIZONA,NASA,SPACE ENGN RES CTR UTILIZAT LOCAL PLANETARY RESOURCES,TUCSON,AZ 85721, USA. NR 0 TC 7 Z9 9 U1 1 U2 1 PU COUNCIL SOCIAL & ECON STUDIES PI WASHINGTON PA C/O EDITOR PO BOX 34070 NW, WASHINGTON, DC 20043 SN 0883-6272 J9 SPACE POWER PY 1991 VL 10 IS 3-4 BP 363 EP 372 PG 10 WC Engineering, Aerospace SC Engineering GA HY234 UT WOS:A1991HY23400007 ER PT J AU LANDIS, GA AF LANDIS, GA TI STRUCTURAL SCALING APPROXIMATIONS FOR SOLAR-ARRAYS SO SPACE POWER LA English DT Article AB General scaling rules for a photovoltaic array structure are required in order to compare the effectiveness of different cell technologies. Important evaluation criteria for an array are moment of inertia, resonant frequency of vibrational modes, stiffness against acceleration, and resistance losses in the wiring. This paper presents approximate scaling relationships for these parameters for a generic solar array structure. RP LANDIS, GA (reprint author), NASA,LEWIS RES CTR 30212,1000 BROOKPARK RD,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COUNCIL SOCIAL & ECON STUDIES PI WASHINGTON PA C/O EDITOR PO BOX 34070 NW, WASHINGTON, DC 20043 SN 0883-6272 J9 SPACE POWER PY 1991 VL 10 IS 3-4 BP 401 EP 409 PG 9 WC Engineering, Aerospace SC Engineering GA HY234 UT WOS:A1991HY23400010 ER PT J AU BRACE, LH KLIORE, AJ AF BRACE, LH KLIORE, AJ TI THE STRUCTURE OF THE VENUS IONOSPHERE SO SPACE SCIENCE REVIEWS LA English DT Review ID SOLAR-WIND INTERACTION; TWO-DIMENSIONAL MODEL; PIONEER-VENUS; NIGHTSIDE IONOSPHERE; ELECTRON-TEMPERATURE; ION COMPOSITION; MAGNETIC-FIELD; TERRESTRIAL PLANETS; DAYSIDE IONOSPHERE; IMPACT IONIZATION AB Our current knowledge of the spatial structure of the Venus ionosphere and its temporal behavior is reviewed, with emphasis on the more recent Pioneer Venus measurements and analysis not covered in earlier reviews. We will stress the ionosphere structure, since other papers in this issue deal with its dynamics, and its magnetic properties. We also discuss some of the limitations that the orbit has placed on the spatial and temporal coverage of the ionosphere. For the benefit of future users of the data some of the factors which affect the measurement accuracies are discussed in an Appendix. C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHER LAB,GREENBELT,MD 20771. CALTECH,JET PROP LAB,PASADENA,CA 91103. OI Russell, Christopher/0000-0003-1639-8298 NR 139 TC 96 Z9 97 U1 2 U2 8 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-6308 J9 SPACE SCI REV JI Space Sci. Rev. PD JAN-FEB PY 1991 VL 55 IS 1-4 BP 81 EP 163 PG 83 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EY581 UT WOS:A1991EY58100003 ER PT J AU MILLER, KL WHITTEN, RC AF MILLER, KL WHITTEN, RC TI ION DYNAMICS IN THE VENUS IONOSPHERE SO SPACE SCIENCE REVIEWS LA English DT Review ID TWO-DIMENSIONAL MODEL; SOLAR-WIND INTERACTION; SCALE MAGNETIC-FIELDS; HOT OXYGEN-ATOMS; NIGHTSIDE IONOSPHERE; DAYSIDE IONOSPHERE; THERMAL STRUCTURE; ELECTRON-TEMPERATURE; CYCLE CHANGES; EUV FLUX AB Dynamics play an important role in defining the characteristics of the Venus ionosphere. The absence of a significant internal magnetic field at Venus allows the ionization to respond freely to gradients in the plasma pressure. The primary response to a gradient in plasma pressure is the nightward flow of the ionization away from a photoionization source on the dayside. The flow is approximately symmetric about the Sun-Venus axis and provides the source of O+ that maintains the nightside ionosphere during solar maximum. Modelling efforts have generally been successful in describing the average nightward ion velocity. Asymmetric and temporally-variable flow is measured, but is not well described by the models. Departures from axially-symmetric flow described in this paper include ionospheric superrotation at low altitudes and an enhanced flow at high altitude at the dawn terminator. Variability that is the result of changes in the ionopause height induced by changes in solar wind dynamic pressure is especially strong on the nightside. Ion flow to the nightside is also reduced during solar minimum because of a depressed ionopause. C1 NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035. RP MILLER, KL (reprint author), UTAH STATE UNIV,CTR ATMOSPHER & SPACE SCI,LOGAN,UT 84322, USA. NR 84 TC 45 Z9 45 U1 0 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-6308 J9 SPACE SCI REV JI Space Sci. Rev. PD JAN-FEB PY 1991 VL 55 IS 1-4 BP 165 EP 199 PG 35 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EY581 UT WOS:A1991EY58100004 ER PT J AU KOHRS, RH GRINER, CS AF KOHRS, RH GRINER, CS TI STATUS OF THE INTERNATIONAL SPACE STATION AND ITS CAPABILITIES SO SPACE TECHNOLOGY-INDUSTRIAL AND COMMERCIAL APPLICATIONS LA English DT Editorial Material CT 6TH COLUMBUS SYMP ON SPACE STATION UTILIZATION ( COLUMBUS VI ) CY APR 24-26, 1990 CL BREMEN, FED REP GER SP GERMAN SOC AERONAUT & ASTRONAUT, MINIST RES & TECHNOL FED REP GER, MINIST RES & TECHNOL ITALY, GERMAN SPACE AGCY, ITALIAN SPACE AGCY, EUROPEAN SPACE AGCY, UNIV NAPLES FEDERICO 2, UNIV BREMEN, MINIST UNIV & RIC SCI & TECNOL ITALY RP KOHRS, RH (reprint author), NASA,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0892-9270 J9 SPACE TECHNOL JI Space Tech.-Ind. Comm. Appl. PY 1991 VL 11 IS 2 BP 61 EP 63 PG 3 WC Engineering, Aerospace SC Engineering GA FG835 UT WOS:A1991FG83500003 ER PT J AU BOROWSKI, SK MULAC, MW SPURLOCK, OF AF BOROWSKI, SK MULAC, MW SPURLOCK, OF TI PERFORMANCE COMPARISONS OF NUCLEAR THERMAL ROCKET AND CHEMICAL PROPULSION SYSTEMS FOR PILOTED MISSIONS TO PHOBOS MARS SO SPACE TECHNOLOGY-INDUSTRIAL AND COMMERCIAL APPLICATIONS LA English DT Article; Proceedings Paper CT 40TH CONGRESS OF THE INTERNATIONAL ASTRONAUTICAL FEDERATION CY OCT 07-13, 1989 CL MALAGA, SPAIN SP INT ASTRONAUT FEDERAT AB Performance capability of nuclear thermal rocket (NTR) and chemical propulsion systems, operating with and without aerobraking, are compared for a selected set of Mars mission opportunities in the 2000-2020 timeframe. Both high- and low-energy mission opportunities are investigated. Results are presented as the required initial mass in low Earth orbit (IMLEO) to perform the missions. Missions exclusively using chemical propulsion systems have the greatest initial masses. Significant mass reductions are realized by utilizing either aerobrake or NTR technology, or both. As mission energy requirements increase, the benefit of implementing aerobrake or NTR technology increases, resulting in IMLEO mass reductions on the order of 60-75% when compared with all-propulsive chemical missions. By combining both advanced technologies, still greater mass reductions are possible. The effect on the propulsion system comparison and the IMLEO, of such factors as trajectory type, launch opportunity, Mars capture orbit, mission flight mode, DELTA-V optimization, aerobrake mass, vehicle recovery, and shortened trip time is also presented. RP BOROWSKI, SK (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0892-9270 J9 SPACE TECHNOL JI Space Tech.-Ind. Comm. Appl. PY 1991 VL 11 IS 3 BP 149 EP 157 PG 9 WC Engineering, Aerospace SC Engineering GA FT066 UT WOS:A1991FT06600005 ER PT J AU HOOK, WR FREEMAN, DC AF HOOK, WR FREEMAN, DC TI LIFTING-BODY OPTION FOR A SPACE STATION RESCUE VEHICLE SO SPACE TECHNOLOGY-INDUSTRIAL AND COMMERCIAL APPLICATIONS LA English DT Article AB With the proposed development of the Space Station Freedom, the need for an assured crew return capability (ACRC) has been identified. During the past 2 years within NASA, there has been an ongoing activity to establish the design requirements for such a vehicle and to identify candidate vehicle concepts that can satisfy these requirements. From this activity, three primary design reference missions and four candidate vehicle concepts have been identified. In support of this activity, the emphasis at Langley has been to assess the potential application of a lifting-body concept derived from work on the HL-10 and X-24 programs in the late sixties. A vehicle systems analysis has been completed including wind-tunnel tests, aerodynamic heating predictions, 6 degree-of-freedom entry simulations, and a global landing opportunities assessment. This report summarizes the results of work at Langley over the past 2 years to define the candidate lifting-body ACRC vehicle and provides insight into potential benefits of the higher cross range of this concept in accomplishing the space station rescue mission. RP HOOK, WR (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0892-9270 J9 SPACE TECHNOL JI Space Tech.-Ind. Comm. Appl. PY 1991 VL 11 IS 4 BP 195 EP 204 PG 10 WC Engineering, Aerospace SC Engineering GA GP226 UT WOS:A1991GP22600006 ER PT J AU MOORE, MH KHANNA, RK AF MOORE, MH KHANNA, RK TI INFRARED AND MASS-SPECTRAL STUDIES OF PROTON IRRADIATED H2O+CO2 ICE - EVIDENCE FOR CARBONIC-ACID SO SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY LA English DT Article ID IONS; H+(H2O)N; DIOXIDE AB The effects of proton irradiation on mixed H2O+CO2 (1:1) ices at 20 K were investigated by infrared and mass spectroscopy. Infrared bands due to several radical (HCO, CO3) and molecular (CO) product species were identified. In addition, several new broad and complex i.r. features were observed. On slow warming, the broad features evolved into a 215-250K residual film whose absorptions have been tentatively assigned to carbonic acid. This identification agrees with the spectral data for irradiated H2O+ 13CO2 ice and the results of an approximate normal coordinate analysis. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP MOORE, MH (reprint author), UNIV MARYLAND,DEPT CHEM & BIOCHEM,COLLEGE PK,MD 20742, USA. NR 23 TC 115 Z9 115 U1 3 U2 14 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8539 J9 SPECTROCHIM ACTA A JI Spectroc. Acta Pt. A-Molec. Biomolec. Spectr. PY 1991 VL 47 IS 2 BP 255 EP 262 DI 10.1016/0584-8539(91)80097-3 PG 8 WC Spectroscopy SC Spectroscopy GA EZ868 UT WOS:A1991EZ86800011 ER PT J AU DAVIS, DD KILDUFF, JE KOONTZ, SL AF DAVIS, DD KILDUFF, JE KOONTZ, SL TI DIFFUSE REFLECTANCE INFRARED FOURIER-TRANSFORM (DRIFT) SPECTROSCOPIC STUDY OF ADSORBED HYDRAZINES SO SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY LA English DT Article AB Diffuse reflectance spectroscopy of fuel hydrazines adsorbed on silica, silica-alumina, alumina and ferric oxide surfaces indicates that the primary surface-hydrazine interaction is hydrogen bonding. Hydrazine, on adsorption to a deuterated silica surface, undergoes a rapid H/D exchange with deuterated surface silanol (Si-OD) groups. Adsorption equilibria are rapidly established at room temperature. Monomethylhydrazine and 1,1-dimethylhydrazine are similarly adsorbed. On adsorption, the C-H stretching and methyl deformation modes of the methylhydrazines are shifted to higher frequencies by 10-20 cm-1. These shifts are postulated to be due to changes in the lone-pair electron-density on the adjacent nitrogen-atom. From a linear relationship of the electronegativities and deformation frequencies it is estimated that adsorption results in a 5% increase in electronegativity of the H-bonded atom. C1 NASA,LOCKHEED EMSCO,JOHNSON SPACE CTR,WHITE SANDS TEST FACIL,LAS CRUCES,NM 88004. RP DAVIS, DD (reprint author), NEW MEXICO STATE UNIV,DEPT CHEM,LAS CRUCES,NM 88003, USA. NR 21 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0584-8539 J9 SPECTROCHIM ACTA A JI Spectroc. Acta Pt. A-Molec. Biomolec. Spectr. PY 1991 VL 47 IS 2 BP 299 EP 308 DI 10.1016/0584-8539(91)80102-O PG 10 WC Spectroscopy SC Spectroscopy GA EZ868 UT WOS:A1991EZ86800016 ER PT J AU OTTERMAN, J BRAKKE, TW AF OTTERMAN, J BRAKKE, TW TI DENSE CANOPY ALBEDO AS A FUNCTION OF ILLUMINATION DIRECTION - DEPENDENCE ON STRUCTURE AND LEAF TRANSMITTANCE SO THEORETICAL AND APPLIED CLIMATOLOGY LA English DT Article ID VEGETATION CANOPIES; REFLECTANCE; ORIENTATION; PROTRUSIONS; PLANE; SCATTERING; INVERSION; MODELS; FOREST AB The dependence of the albedo on illumination direction is analyzed by constructing a canopy model in which the individual leaves are planar, Lambertian reflectors. Leaf transmission is treated separately, and is assumed to be proportional to the cosine of the zenith angle of the leaf normal. Effects of shading and obscuration are formulated assuming random distribution of the leaves with respect to the viewing and illumination directions. Variants of the model with different azimuthal leaf distributions are created and discussed as explicit expressions of the viewing/illumination geometry and the canopy characteristics. The canopy spectral single-scattering albedo factors, which are the conditional probabilities of a photon escaping from the canopy after a first reflection or a first transmission, are obtained by numerical integration over a hemisphere of the bidirectional reflectance and transmittance factors. Our analysis identifies the ratio of the projection of leaf area on the vertical plane perpendicular to the principal plane to that on a horizontal plane as the parameter that controls the dependence of the albedo on the solar zenith angle. The albedo factor due to the leaf transmittance generally increases with the zenith angle of illuminating beam more sharply than that due to the leaf reflectance. Model variants with various azimuthal distributions are compared with measured albedo of soybeans. Second and higher order scatterings are accounted for in a simplified way. The degree to which a model variant fits the measured albedo and its change with the solar zenith angle depends both on the leaf inclination angle and the azimuthal distribution of the leaf area. C1 NASA,GODDARD SPACE FLIGHT CTR,CODE 923,GREENBELT,MD 20771. TEL AVIV UNIV,IL-69978 TEL AVIV,ISRAEL. NR 27 TC 6 Z9 6 U1 3 U2 4 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-798X J9 THEOR APPL CLIMATOL JI Theor. Appl. Climatol. PY 1991 VL 43 IS 1-2 BP 3 EP 16 DI 10.1007/BF00865038 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FD136 UT WOS:A1991FD13600001 ER PT J AU WIETING, AR DECHAUMPHAI, P BEY, KS THORNTON, EA MORGAN, K AF WIETING, AR DECHAUMPHAI, P BEY, KS THORNTON, EA MORGAN, K TI APPLICATION OF INTEGRATED FLUID THERMAL STRUCTURAL-ANALYSIS METHODS SO THIN-WALLED STRUCTURES LA English DT Article RP WIETING, AR (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 7 Z9 9 U1 2 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0263-8231 J9 THIN WALL STRUCT JI Thin-Walled Struct. PY 1991 VL 11 IS 1-2 BP 1 EP 23 DI 10.1016/0263-8231(91)90008-7 PG 23 WC Engineering, Civil SC Engineering GA EK154 UT WOS:A1991EK15400001 ER PT J AU MALONE, JB SWANSON, RC AF MALONE, JB SWANSON, RC BE Dulikravich, GS TI INVERSE AIRFOIL DESIGN PROCEDURE USING A MULTIGRID NAVIER-STOKES METHOD SO THIRD INTERNATIONAL CONFERENCE ON INVERSE DESIGN CONCEPTS AND OPTIMIZATION IN ENGINEERING SCIENCE - ICIDES-III, PROCEEDINGS LA English DT Proceedings Paper CT 3rd International Conference on Inverse Design Concepts and Optimization in Engineering Sciences (ICIDES-III) CY OCT 23-25, 1991 CL WASHINGTON, DC SP NASA HEADQUARTERS, NATL SCI FDN, USN, OFF NAVAL RES, PENN STATE UNIV C1 NASA,LANGLEY RES CTR,DIV STRUCT DYNAM,UNSTEADY AERODYNAM BRANCH,HAMPTON,VA 23665. NR 0 TC 3 Z9 3 U1 0 U2 0 PU I C I D E S-III PI WASHINGTON PA NASA HEADQUARTERS AERODYNAMICS DIV 600 INDEPENDENCE AVE SW, WASHINGTON, DC 20546 PY 1991 BP 55 EP 66 PG 12 WC Engineering, Aerospace; Engineering, Industrial SC Engineering GA BC20S UT WOS:A1991BC20S00004 ER PT B AU ANDERSON, BH LEVY, R AF ANDERSON, BH LEVY, R BE Dulikravich, GS TI VORTEX GENERATOR DESIGN FOR AIRCRAFT INLET DISTORTION AS A NUMERICAL OPTIMIZATION PROBLEM SO THIRD INTERNATIONAL CONFERENCE ON INVERSE DESIGN CONCEPTS AND OPTIMIZATION IN ENGINEERING SCIENCE - ICIDES-III, PROCEEDINGS LA English DT Proceedings Paper CT 3rd International Conference on Inverse Design Concepts and Optimization in Engineering Sciences (ICIDES-III) CY OCT 23-25, 1991 CL WASHINGTON, DC SP NASA HEADQUARTERS, NATL SCI FDN, USN, OFF NAVAL RES, PENN STATE UNIV C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I C I D E S-III PI WASHINGTON PA NASA HEADQUARTERS AERODYNAMICS DIV 600 INDEPENDENCE AVE SW, WASHINGTON, DC 20546 PY 1991 BP 419 EP 432 PG 14 WC Engineering, Aerospace; Engineering, Industrial SC Engineering GA BC20S UT WOS:A1991BC20S00031 ER PT J AU BRAUN, MJ CANACCI, VA HENDRICKS, RC AF BRAUN, MJ CANACCI, VA HENDRICKS, RC TI FLOW VISUALIZATION AND QUANTITATIVE VELOCITY AND PRESSURE MEASUREMENTS IN SIMULATED SINGLE AND DOUBLE BRUSH SEALS SO TRIBOLOGY TRANSACTIONS LA English DT Article; Proceedings Paper CT 45TH ANNUAL MEETING OF THE SOC OF TRIBOLOGISTS AND LUBRICATION ENGINEERS CY MAY 07-10, 1990 CL DENVER, CO SP SOC TRIBOLOGISTS & LUBRICAT ENGINEERS ID MEDIA AB A method to visualize and characterize the complex flow fields in simulated single and double brush seals is presented. The brush seal configuration was tested in a gravity fed water tunnel and a pump driven pressurized oil tunnel. Visualization of the flow field revealed regions that are characteristically river jetting, vortical, crossflow and exist upstream, downstream or within the seal. Such flows are especially engendered by variations in fiber void that are spatial and temporal and affect changes in seal leakage and stability. While the effects of interface motion and cylindrical configuration have not been considered herein, it is believed that the observed flow fields and pressure drop patterns characterize flow phenomenology in brush seals. The axial pressure profiles upstream, across and downstream of the brush have been measured under a variety of inlet pressure conditions and the ensuring pressure maps are presented and discussed. Through the application of the Full Flow Field Tracking method developed by the authors, the flow patterns and the accompanying fluid velocities inside the brush were non-intrusively determined and graphically reconstructed. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP BRAUN, MJ (reprint author), UNIV AKRON,DEPT MECH ENGN,AKRON,OH 44325, USA. NR 10 TC 10 Z9 10 U1 0 U2 8 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0569-8197 J9 TRIBOL T JI Tribol. Trans. PD JAN PY 1991 VL 34 IS 1 BP 70 EP 80 DI 10.1080/10402009108982011 PG 11 WC Engineering, Mechanical SC Engineering GA ER745 UT WOS:A1991ER74500010 ER PT B AU BUNTINE, W AF BUNTINE, W BE DAmbrosio, BD Smets, P Bonissone, PP TI SOME PROPERTIES OF PLAUSIBLE REASONING SO UNCERTAINTY IN ARTIFICIAL INTELLIGENCE: PROCEEDINGS OF THE SEVENTH CONFERENCE (1991) LA English DT Proceedings Paper CT 7th Conference on Uncertainty in Artificial Intelligence CY JUL 13-15, 1991 CL UNIV CALIF LOS ANGELES, LOS ANGELES, CA HO UNIV CALIF LOS ANGELES C1 NASA,AMES RES CTR,RIACS,MOFFETT FIELD,CA 94025. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MORGAN KAUFMANN PUB INC PI SAN MATEO PA 2929 CAMPUS DRIVE, SAN MATEO, CA 94403 BN 1-55860-203-8 PY 1991 BP 44 EP 51 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BB25J UT WOS:A1991BB25J00006 ER PT B AU BUNTINE, W AF BUNTINE, W BE DAmbrosio, BD Smets, P Bonissone, PP TI THEORY REFINEMENT ON BAYESIAN NETWORKS SO UNCERTAINTY IN ARTIFICIAL INTELLIGENCE: PROCEEDINGS OF THE SEVENTH CONFERENCE (1991) LA English DT Proceedings Paper CT 7th Conference on Uncertainty in Artificial Intelligence CY JUL 13-15, 1991 CL UNIV CALIF LOS ANGELES, LOS ANGELES, CA HO UNIV CALIF LOS ANGELES C1 NASA,AMES RES CTR,RIACS,MOFFETT FIELD,CA 94035. NR 0 TC 17 Z9 18 U1 0 U2 2 PU MORGAN KAUFMANN PUB INC PI SAN MATEO PA 2929 CAMPUS DRIVE, SAN MATEO, CA 94403 BN 1-55860-203-8 PY 1991 BP 52 EP 60 PG 9 WC Computer Science, Artificial Intelligence SC Computer Science GA BB25J UT WOS:A1991BB25J00007 ER PT J AU COLUSSI, AJ AF COLUSSI, AJ TI FORMATION AND DECAY OF (P-3(J))O ATOMS IN THE LASER FLASH-PHOTOLYSIS OF CHLORINE DIOXIDE (OCLO) AT 308NM SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article ID ABSORPTION-SPECTRUM; OZONE DEPLETION; PERCHLORATE; TEMPERATURE; PRODUCT; CL2O3 AB The primary quantum yields of O(P3J) and Cl(P2(3/2)) atoms in the laser flash photolysis of OClO(g) at 308 nm and 298 K and the kinetics of the subsequent oxygen atom decay have been investigated by time-resolved atomic resonance fluorescence measurements. The determined quantum yields are phi-O = 1.02 +/- 0.05 and phi-Cl < 0.01. Second-order rate constants for the reaction between O atoms and OClO are pressure dependent with a finite intercept. The rate constant for the bimolecular channel O + OClO --> O2 + ClO (1) has a value of k1 = (1.6 +/- 0.4) X 10(-13) cm3 molecule-1 s-1. Termolecular reaction rates for O + OClO + Ar --> ClO3 + Ar (2) can be fit with k20 = (1.4 +/- 0.3) X 10(-31) cm6 molecule-2 s-1 and k2infinity = (3.1 +/- 0.8) X 10(-11) cm3 molecule-1 s-1. A value of DELTA-H(f)(ClO3) = 55.6 +/- 4 kcal/mol is derived from k20 and unimolecular reaction theory by assuming a collision efficiency of beta = 0.76 for argon. RP COLUSSI, AJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. RI Colussi, Agustin/C-6520-2008 NR 26 TC 45 Z9 45 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD DEC 27 PY 1990 VL 94 IS 26 BP 8922 EP 8926 DI 10.1021/j100389a014 PG 5 WC Chemistry, Physical SC Chemistry GA EQ506 UT WOS:A1990EQ50600014 ER PT J AU FREESE, K FRIEMAN, JA OLINTO, AV AF FREESE, K FRIEMAN, JA OLINTO, AV TI NATURAL INFLATION WITH PSEUDO NAMBU-GOLDSTONE BOSONS SO PHYSICAL REVIEW LETTERS LA English DT Article ID INVISIBLE AXION; SUPERSTRING MODELS; UNIVERSE SCENARIO; HARMLESS AXION; COSMOLOGY; PERTURBATIONS; INVARIANCE; INSTANTONS; FLATNESS; HORIZON AB We show that a pseudo Nambu-Goldstone boson, with a potential of the form V(phi) = LAMBDA-4[1 +/- cos(phi/f)], can naturally give rise to an epoch of inflation in the early Universe. Successful inflation can be achieved if f approximately m(pl) and LAMBDA approximately m(GUT). Such mass scales arise in particle-physics models with a gauge group that becomes strongly interacting at a scale approximately LAMBDA, e.g., as can happen in superstring theories. The density fluctuation spectrum is non-scale-invariant, with extra power on large length scales. C1 FERMI NATL ACCELERATOR LAB, NASA, FERMILAB ASTROPHYS CTR, BATAVIA, IL 60510 USA. RP MIT, DEPT PHYS, CAMBRIDGE, MA 02139 USA. NR 46 TC 601 Z9 601 U1 0 U2 1 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 0031-9007 EI 1079-7114 J9 PHYS REV LETT JI Phys. Rev. Lett. PD DEC 24 PY 1990 VL 65 IS 26 BP 3233 EP 3236 DI 10.1103/PhysRevLett.65.3233 PG 4 WC Physics, Multidisciplinary SC Physics GA EP045 UT WOS:A1990EP04500007 ER PT J AU PARTRIDGE, H BAUSCHLICHER, CW LANGHOFF, SR AF PARTRIDGE, H BAUSCHLICHER, CW LANGHOFF, SR TI THEORETICAL-STUDY OF THE POSITIVE-IONS OF THE DIMERS AND TRIMERS OF THE GROUP-IB METALS (CU, AG, AND AU) SO CHEMICAL PHYSICS LETTERS LA English DT Article ID ELECTRON-AFFINITY; COPPER TRIMER; SPECTROSCOPY; POTENTIALS; CLUSTERS; ABINITIO; ENERGIES; SURFACE AB The molecular structure of the positive ions of the diatomic and triatomic systems containing the metals Cu, Ag, and Au are determined from ab initio calculations. The bond lengths of the positive diatomic ions are similar to those of the corresponding anions, because they all have a bond order of one half. The ionization potentials (IPs) of the homonuclear trimers are considerably smaller than those for either the atoms or diatomics, since the highest occupied molecular orbital is only weakly bonding. The neutral and positively charged trimers have comparable structures resulting in similar vertical and adiabatic IPs. The trends in the dimer and trimer IPs and atomization energies are explained by the fact that the IP of Au is larger than either Ag or Cu. RP PARTRIDGE, H (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 23 TC 54 Z9 54 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. PD DEC 21 PY 1990 VL 175 IS 5 BP 531 EP 535 DI 10.1016/0009-2614(90)85576-X PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EU257 UT WOS:A1990EU25700021 ER PT J AU ANSARI, H METSCHER, BD LESH, JR AF ANSARI, H METSCHER, BD LESH, JR TI EXPERIMENTAL CONSIDERATIONS FOR 2-D ACOUSTOOPTIC SPECTRUM ANALYSIS SO APPLIED OPTICS LA English DT Note DE SPECTRUM ANALYSIS; ACOUSTOOPTIC; BRAGG CELLS AB A 2-D acoustooptic spectrum analyzer with the associated reference function generator and real-time image processor has been constructed. The operation of the analyzer and the experimental considerations for obtaining a high resolution spectrum in real time are described. RP ANSARI, H (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 4 TC 0 Z9 0 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 20 PY 1990 VL 29 IS 36 BP 5317 EP 5319 PG 3 WC Optics SC Optics GA EQ685 UT WOS:A1990EQ68500005 PM 20577555 ER PT J AU MCCARTHY, PJ SPINRAD, H VANBREUGEL, W LIEBERT, J DICKINSON, M DJORGOVSKI, S EISENHARDT, P AF MCCARTHY, PJ SPINRAD, H VANBREUGEL, W LIEBERT, J DICKINSON, M DJORGOVSKI, S EISENHARDT, P TI EXTENDED LY-ALPHA EMISSION ASSOCIATED WITH 3C294 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV CALIF BERKELEY, DEPT ASTRON, BERKELEY, CA 94720 USA. ASSOCIATED UNIV RES ASTRON INC, NATL OPT ASTRON OBSERV, KITT PEAK NATL OBSERV, TUCSON, AZ USA. UNIV ARIZONA, STEWARD OBSERV, TUCSON, AZ 85724 USA. CALTECH, DIV MATH PHYS & ASTRON, PASADENA, CA 91125 USA. NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. RP OBSERV CARNEGIE INST WASHINGTON, 813 SANTA BARBARA ST, PASADENA, CA 91101 USA. NR 84 TC 100 Z9 100 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD DEC 20 PY 1990 VL 365 IS 2 BP 487 EP 501 DI 10.1086/169503 PN 1 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300008 ER PT J AU CHU, YH MACLOW, MM AF CHU, YH MACLOW, MM TI X-RAYS FROM SUPERBUBBLES IN THE LARGE MAGELLANIC CLOUD SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,AMES RES CTR,THEORET STUDIES BRANCH,MOFFETT FIELD,CA 94035. UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NATL INST STAND & TECHNOL,BOULDER,CO. RP CHU, YH (reprint author), UNIV ILLINOIS,DEPT ASTRON,1002 W GREEN ST,URBANA,IL 61801, USA. OI Mac Low, Mordecai-Mark/0000-0003-0064-4060 NR 60 TC 176 Z9 176 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 DEC 20 PY 1990 VL 365 IS 2 BP 510 EP & DI 10.1086/169505 PN 1 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300010 ER PT J AU BURTON, MG HOLLENBACH, DJ TIELENS, AGGM AF BURTON, MG HOLLENBACH, DJ TIELENS, AGGM TI LINE EMISSION FROM CLUMPY PHOTODISSOCIATION REGIONS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035. UNIV CALIF IRVINE,DEPT PHYS,IRVINE,CA 92717. RP BURTON, MG (reprint author), ANGLO AUSTRALIAN OBSERV,EPPING LAB,POB 296,EPPING,NSW 2121,AUSTRALIA. OI Burton, Michael/0000-0001-7289-1998 NR 78 TC 296 Z9 296 U1 0 U2 3 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 20 PY 1990 VL 365 IS 2 BP 620 EP 639 DI 10.1086/169516 PN 1 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300021 ER PT J AU SHORE, SN BROWN, DN AF SHORE, SN BROWN, DN TI MAGNETICALLY CONTROLLED CIRCUMSTELLAR MATTER IN THE HELIUM-STRONG STARS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV WASHINGTON,DEPT ASTRON,SEATTLE,WA 98195. OBSERV PARIS,DEMIRM,F-92190 MEUDON,FRANCE. RP SHORE, SN (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 681,GREENBELT,MD 20771, USA. NR 45 TC 106 Z9 107 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 DEC 20 PY 1990 VL 365 IS 2 BP 665 EP 676 DI 10.1086/169520 PN 1 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL773 UT WOS:A1990EL77300025 ER PT J AU PUESCHEL, RF LIVINGSTON, JM AF PUESCHEL, RF LIVINGSTON, JM TI AEROSOL SPECTRAL OPTICAL DEPTHS - JET FUEL AND FOREST-FIRE SMOKES SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID PARTICLE-SIZE; WAVELENGTH AB The Ames autotracking airborne sun photometer was used to investigate the spectral optical depth between 380 and 1020 nm of smokes from a jet fuel pool fire and a forest fire in May and August 1988, respectively. Results show that the forest fire smoke exhibited a stronger wavelength dependence of optical depths than did the jet fuel fire smoke at optical depths less than unity. At optical depths greater than or equal to 1, both smokes showed neutral wavelength dependence, similar to that of an optically thin stratus deck. These results verify findings of earlier investigations and have implications both on the climatic impact of large-scale smokes and on the wavelength-dependent transmission of electromagnetic signals. C1 SRI INT, MENLO PK, CA 94025 USA. RP PUESCHEL, RF (reprint author), NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. NR 21 TC 12 Z9 12 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 DEC 20 PY 1990 VL 95 IS D13 BP 22417 EP 22422 DI 10.1029/JD095iD13p22417 PG 6 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ840 UT WOS:A1990EQ84000007 ER PT J AU SUMMERS, ME STROBEL, DF BEVILACQUA, RM ZHU, X DELAND, MT ALLEN, M KEATING, GM AF SUMMERS, ME STROBEL, DF BEVILACQUA, RM ZHU, X DELAND, MT ALLEN, M KEATING, GM TI A MODEL STUDY OF THE RESPONSE OF MESOSPHERIC OZONE TO SHORT-TERM SOLAR ULTRAVIOLET FLUX VARIATIONS SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article ID MIDDLE ATMOSPHERE; WATER-VAPOR; LOWER THERMOSPHERE; IRRADIANCE; TRANSPORT; RADIATION; PHOTOCHEMISTRY; STRATOSPHERE; CYCLE AB A one-dimensional photochemical model and a time-dependent heat equation which incorporates non-local thermodynamic equilibrium (non-LTE) IR radiative transfer are used to study the response of mesospheric ozone concentration to short-term solar UV flax variations. We compare our model results with the observed ozone response obtained from a statistical analysis of Solar Mesosphere Explorer (SME) data (Keating et al., 1987). Our model with sinusoidal 27-day-period forcing of mesospheric chemistry by solar ultraviolet flux, when combined with temperature-chemistry feedback, time-dependent atmospheric temperature effects, and low eddy mixing rates, reproduces the major characteristics of the observed ozone response but not the observed temperature response. Below 60 km the calculated response shows a strong dependence on the magnitude of the assumed flux modulation in the Hartley region of the spectrum. A comparison of the model O3 response with the SME observations suggests that there is negligible 27-day variation of solar flux longward of 2400 angstrom, in agreement with Lean (1987). The magnitude of the computed ozone response to increased solar UV flux in the upper mesosphere (above 70 km) is strongly coupled to the water vapor abundance through the HO(x) catalytic cycle that removes ozone. Our model predicts the essential aspects of the observed ozone response only when the water vapor mixing ratio and vertical eddy diffusion coefficient are a factor of 5 below observed and inferred mid-latitude values. But then the model results are in almost complete disagreement with the observed temperature amplitude and phase lag. Calculations performed with imposition of the temperature response observed by Keating et al. (1987) produces an ozone response in the middle mesosphere in severe conflict with observations, suggesting a need for better mesospheric and solar data and further modeling efforts to determine the role of dynamics in the mesospheric ozone and temperature response to solar UV variability. C1 CALTECH, JET PROP LAB, DIV EARTH & SPACE SCI 183-601, PASADENA, CA 91109 USA. ST SYST CORP, LANHAM, MD 20706 USA. NASA, LANGLEY RES CTR, DIV ATMOSPHER SCI, HAMPTON, VA 23665 USA. JOHNS HOPKINS UNIV, DEPT EARTH & PLANETARY SCI, BALTIMORE, MD 21218 USA. JOHNS HOPKINS UNIV, DEPT PHYS & ASTRON, BALTIMORE, MD 21218 USA. RP SUMMERS, ME (reprint author), USN, RES LAB, EO HULBURT CTR SPACE RES, MAIL CODE 41415, WASHINGTON, DC 20375 USA. RI Zhu, Xun/C-2097-2016 OI Zhu, Xun/0000-0001-7860-6430 NR 33 TC 24 Z9 24 U1 0 U2 1 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 DEC 20 PY 1990 VL 95 IS D13 BP 22523 EP 22538 DI 10.1029/JD095iD13p22523 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ840 UT WOS:A1990EQ84000018 ER PT J AU PATT, BE DOLIN, RC DEVORE, TM MARKAKIS, JM IWANCZYK, JS DORRI, N TROMBKA, J AF PATT, BE DOLIN, RC DEVORE, TM MARKAKIS, JM IWANCZYK, JS DORRI, N TROMBKA, J TI RADIATION-DAMAGE RESISTANCE IN MERCURIC IODIDE X-RAY-DETECTORS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN ID HGI2 AB Mercuric iodide (HgI2) radiation detectors show great potential as ambient-temperature solid-state detectors for X-rays, gamma rays and visible light, with parameters that are competitive with existing technologies. In a previous experiment, HgI2 detectors irradiated with 10 MeV protons, at doses up to 10(12) protons/cm2 exhibited no damage. The 10 MeV protons represent only the low range of the spectrum of energies that are important. An experiment has been conducted at the Saturne accelerator facility at Saclay, France, to determine the susceptibility of these detectors to radiation damage by high-energy (1.5 GeV) protons. The detectors were irradiated to a fluence of 10(8) protons/cm2. This fluence is equivalent to the cosmic radiation expected in a one-year period in space. The resolution of the detectors was measured as a function of the integral dose. No degradation in the response of any of the detectors or spectrometers was seen. It is clear from this data that HgI2 has extremely high radiation-damage resistance, exceeding that of most other semiconductor materials used for radiation detectors. Based on the results shown to date, HgI2 detectors are suitable for applications in which they may be exposed to high integral dose levels. C1 XSIRIUS INC,MARINA DEL REY,CA 90292. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20852. RP PATT, BE (reprint author), EG&G ENERGY MEASUREMENTS INC,130 ROBIN HILL RD,GOLETA,CA 93117, USA. NR 7 TC 12 Z9 12 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 DEC 20 PY 1990 VL 299 IS 1-3 BP 176 EP 181 DI 10.1016/0168-9002(90)90771-W PG 6 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800036 ER PT J AU LINDSTROM, RM LINDSTROM, DJ SLABACK, LA LANGLAND, JK AF LINDSTROM, RM LINDSTROM, DJ SLABACK, LA LANGLAND, JK TI A LOW-BACKGROUND GAMMA-RAY ASSAY LABORATORY FOR ACTIVATION-ANALYSIS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN ID SPECTROMETERS AB The sources of background in a gamma-ray detector were experimentally determined in underground and surface counting rooms, and an optimized shield was constructed at NIST. The optimum thickness of lead was 10-15 cm, with a greater thickness giving an increased background due to the buildup of tertiary cosmic-ray particles. Neither cadmium, tin, copper nor plastic (hydrocarbon or fluorocarbon) was desirable as a shield liner, since all these increased the background continuum or introduced characteristic peaks into the background spectrum. Two broad peaks in the background result from inelastic scattering of cosmic-ray neutrons (0.02 cm-2 s-1) in germanium. These neutrons also excite the lower nuclear levels of lead and structural iron to produce additional gamma-ray peaks in the spectrum. The influence of the 20 MW NIST reactor, located 60 m from the detector, was undetectable. Comparisons among detectors and locations clearly separate cosmic from environmental components of the background. C1 NIST,DIV OCCUPAT HLTH & SAFETY,GAITHERSBURG,MD 20899. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP LINDSTROM, RM (reprint author), NIST,CTR ANALYT CHEM,GAITHERSBURG,MD 20899, USA. NR 20 TC 46 Z9 46 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 DEC 20 PY 1990 VL 299 IS 1-3 BP 425 EP 429 DI 10.1016/0168-9002(90)90818-Q PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800083 ER PT J AU YIN, LI SELTZER, SM AF YIN, LI SELTZER, SM TI PATTERN-RECOGNITION ANALYSIS OF LOW-RESOLUTION X-RAY-FLUORESCENCE SPECTRA SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN AB Using a high-resolution Si(Li) spectrometer to perform X-ray fluorescence (XRF) analysis of various geological, alloy, and paint samples, we have demonstrated that in situations where quantitative information is not the primary concern, a pattern-recognition approach may be used to obtain qualitative results very quickly and efficiently. Specifically, the pattern-recognition technique uses a single parameter, the normalized correlation coefficient, to identify and select samples with similar chemical compositions from their raw XRF spectra. The algorithm can be easily implemented on a personal computer; typically it takes only a few seconds to perform the pairwise comparison of 9 or 10 spectra. We report here the results of our attempt to extend the pattern-recognition technique to the analysis of low-resolution XRF spectra from a proportional counter where the spectral information is considerably poorer than that of the Si(Li) detector. Analyzing the XRF spectra obtained from a set of geological samples both in air and in vacuum we find that even with a proportional counter the pattern-recognition technique can nevertheless satisfactorily identify samples with similar chemical compositions. C1 NIST,CTR RADIAT RES,GAITHERSBURG,MD 20899. RP YIN, LI (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 682,GREENBELT,MD 20771, USA. NR 4 TC 1 Z9 1 U1 0 U2 3 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 DEC 20 PY 1990 VL 299 IS 1-3 BP 571 EP 577 DI 10.1016/0168-9002(90)90846-X PG 7 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800111 ER PT J AU LINDSTROM, DJ AF LINDSTROM, DJ TI ANALYSIS OF SUBMICROGRAM SAMPLES BY INAA SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article; Proceedings Paper CT 7TH SYMP ON X-RAY AND GAMMA-RAY SOURCES AND APPLICATIONS : RADIATION MEASUREMENTS AND APPLICATIONS CY MAY 21-24, 1990 CL UNIV MICHIGAN, ANN ARBOR, MI SP US DOE, NATL INST STAND & TECHNOL, UNIV MICHIGAN, HENRY FORD HOSP, ALBION COLL, E MICHIGAN UNIV HO UNIV MICHIGAN ID NEUTRON-ACTIVATION ANALYSIS; ELEMENTS AB Procedures have been developed to increase the sensitivity of instrumental neutron activation analysis (INAA) so that cosmic-dust samples weighing only 10(-9)-10(-7) g are routinely analyzed for a sizable number of elements. The primary differences from standard techniques are: (1) irradiation of the samples is much more intense, (2) gamma ray assay of the samples is done using long counting times and large Ge detectors that are operated in an excellent low-background facility, (3) specially prepared glass standards are used, (4) samples are too small to be weighed routinely and concentrations must be obtained indirectly, (5) sample handling is much more difficult, and contamination of small samples with normally insignificant amounts of contaminants is difficult to prevent. In spite of the difficulties, INAA analyses have been done on 15 cosmic-dust particles and a larger number of other stratospheric particles. Two-sigma detection limits for some elements are in the range of femtograms (10(-15) g), e.g. Co = 11, Sc = 0.9, Sm = 0.2. A particle weighing just 0.2 ng was analyzed, obtaining abundances with relative analytical uncertainties of less than 10% for four elements (Fe, Co, Ni and Sc), which were sufficient to allow indentification of the particle as chondritic interplanetary dust. Larger samples allow abundances of twenty or more elements to be obtained. RP LINDSTROM, DJ (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,PLANETARY SCI BRANCH SN2,HOUSTON,TX 77058, USA. NR 15 TC 12 Z9 12 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 DEC 20 PY 1990 VL 299 IS 1-3 BP 584 EP 588 DI 10.1016/0168-9002(90)90849-2 PG 5 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EV528 UT WOS:A1990EV52800114 ER PT J AU TURNER, MS WILCZEK, F AF TURNER, MS WILCZEK, F TI RELIC GRAVITATIONAL-WAVES AND EXTENDED INFLATION SO PHYSICAL REVIEW LETTERS LA English DT Article C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS & ASTRON,CHICAGO,IL 60637. UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTROPHYS,CHICAGO,IL 60637. INST ADV STUDY,SCH NAT SCI,PRINCETON,NJ 08540. RP TURNER, MS (reprint author), FERMI NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510, USA. NR 37 TC 81 Z9 81 U1 1 U2 5 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 DEC 17 PY 1990 VL 65 IS 25 BP 3080 EP 3083 DI 10.1103/PhysRevLett.65.3080 PG 4 WC Physics, Multidisciplinary SC Physics GA EM761 UT WOS:A1990EM76100005 ER PT J AU KHAKOO, MA RATLIFF, JM TRAJMAR, S AF KHAKOO, MA RATLIFF, JM TRAJMAR, S TI ELECTRON-IMPACT EXCITATION OF CORONENE SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID POLYCYCLIC AROMATIC-HYDROCARBONS; DIFFUSE INTERSTELLAR BANDS; MOLECULES AB A preliminary study of the electron-impact excitation of thermally evaporated coronene at 550-degrees-C was carried out using electron-energy-loss spectroscopy. Measurements of the energy-loss spectra of coronene at high (100 eV) and low (5-20 eV) impact energies are presented. One of the high-energy spectra was converted to an apparent generalized oscillator strength spectrum and compared to the photoabsorption spectrum of coronene. Observations concerning vibrational excitation of coronene by electron impact are also presented and discussed. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 24 TC 18 Z9 18 U1 0 U2 10 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 DEC 15 PY 1990 VL 93 IS 12 BP 8616 EP 8619 DI 10.1063/1.459248 PG 4 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000023 ER PT J AU WATTS, JD CERNUSAK, I NOGA, J BARTLETT, RJ BAUSCHLICHER, CW LEE, TJ RENDELL, AP TAYLOR, PR AF WATTS, JD CERNUSAK, I NOGA, J BARTLETT, RJ BAUSCHLICHER, CW LEE, TJ RENDELL, AP TAYLOR, PR TI TRIPLE AND QUADRUPLE EXCITATION CONTRIBUTIONS TO THE BINDING IN BE CLUSTERS - CALIBRATION CALCULATIONS ON BE-3 SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article ID FULL CCSDT MODEL; MOLECULAR ELECTRONIC-STRUCTURE; SINGLES; T4 AB We have investigated the contribution of connected triple and quadruple excitations to the binding in Be3 by comparing various coupled-cluster (CC) and truncated configuration-interaction (CI) treatments with multireference CI (MRCI) and full CI (FCI) calculations. The CC method with single and double excitations (CCSD) produces results that differ substantially from more elaborate treatments, but most extensions to CCSD that account approximately for connected triple excitations perform very well. In contrast, good agreement with FCI for Be2 can be achieved only with the highest level CC and MRCI methods. C1 COMENIUS UNIV,DEPT PHYS CHEM,CS-84215 BRATISLAVA,CZECHOSLOVAKIA. UNIV FLORIDA,CTR CHEM RES,INST INORGAN CHEM,GAINESVILLE,FL 32611. UNIV FLORIDA,DEPT PHYS,GAINESVILLE,FL 32611. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. ELORET INST,PALO ALTO,CA 94303. RP WATTS, JD (reprint author), UNIV FLORIDA,DEPT CHEM,QUANTUM THEORY PROJECT,GAINESVILLE,FL 32611, USA. RI Rendell, Alistair/A-4883-2008; Bartlett, Rodney/F-6781-2011; Cernusak, Ivan/E-9386-2012; Lee, Timothy/K-2838-2012; Noga, Jozef/I-6517-2015 OI Rendell, Alistair/0000-0002-9445-0146; Bartlett, Rodney/0000-0003-3865-9639; Cernusak, Ivan/0000-0002-6597-3095; NR 25 TC 41 Z9 41 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 DEC 15 PY 1990 VL 93 IS 12 BP 8875 EP 8880 DI 10.1063/1.459226 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EP160 UT WOS:A1990EP16000054 ER PT J AU SPRINGER, SR MCPHADEN, MJ BUSALACCHI, AJ AF SPRINGER, SR MCPHADEN, MJ BUSALACCHI, AJ TI OCEANIC HEAT-CONTENT VARIABILITY IN THE TROPICAL PACIFIC DURING THE 1982-1983 EL-NINO SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article ID EQUATORIAL PACIFIC; SEA-LEVEL; INTERANNUAL VARIABILITY; SOUTHERN OSCILLATION; SEASONAL CYCLE; MODEL; BOUNDARIES; MOTIONS; REFLECTION; SIMULATION AB Anomalous heat transport and storage during the 1982-1983 El Nino are investigated using a linear, multimode model forced by observed winds. Heat transport is decomposed into symmetric (about the equator) and antisymmetric components. The former was dominated by anomalous northward Ekman transport which represented an enhancement of the usual seasonal cycle. The latter involved both Ekman and geostrophic transports. Near-equatorial wind anomalies forced Kelvin and Rossby waves usually associated with El Nino; together these waves set up antisymmetric, geostrophic transport which tended to oppose direct Ekman transport. Because the opposition was imperfect, there was net heat convergence which caused variations in heat content in bands of latitude centered on the equator. Within a fairly narrow band (+/- 5-degrees) heat content was anomalously high preceding El Nino and was depleted following the event. Equatorial heat content anomalies were largely compensated by opposing anomalies in low latitudes of the extraequatorial ocean so that variability over broader bands of latitude about the equator was relatively small. A sampling study employing the model suggests that observational evidence for a heat content variations over the region +/- 15-degrees is an artifact arising from inadequate spatial resolution offered by the sea level measurement network. C1 NASA,GODDARD SPACE FLIGHT CTR,OCEANS LAB,GREENBELT,MD 20771. NOAA,PACIFIC MARINE ENVIRONM LAB,SEATTLE,WA 98115. RP SPRINGER, SR (reprint author), UNIV WASHINGTON,SCH OCEANOG,WB-10,SEATTLE,WA 98195, USA. RI McPhaden, Michael/D-9799-2016 NR 37 TC 35 Z9 38 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD DEC 15 PY 1990 VL 95 IS C12 BP 22089 EP 22101 DI 10.1029/JC095iC12p22089 PG 13 WC Oceanography SC Oceanography GA EP457 UT WOS:A1990EP45700001 ER PT J AU KOLB, EW SALOPEK, DS TURNER, MS AF KOLB, EW SALOPEK, DS TURNER, MS TI ORIGIN OF DENSITY-FLUCTUATIONS IN EXTENDED INFLATION SO PHYSICAL REVIEW D LA English DT Article ID UNIVERSE SCENARIO; INVISIBLE AXION; PERTURBATIONS; GENERATION; COSMOLOGY; GRAVITY; CONSTRAINTS; FLATNESS; CREATION; HORIZON AB We calculate both the curvature and isocurvature density fluctuations that arise due to quantum fluctuations in a simple model of extended inflation based upon the Jordan-Brans-Dicke theory. The curvature fluctuations that arise due to quantum fluctuations in the Brans-Dicke field in general have a non-scale-invariant spectrum and an amplitude that is cosmologically acceptable and interesting without having to tune any coupling constant to a very small value. The curvature perturbations that arise due to the Higgs field are subdominant. If there are other massless fields in the theory, e.g., an axion or an ilion, then isocurvature fluctuations arise in these fields too. Production of gravitational waves and the massless particles associated with excitations of the Brans-Dicke field are also discussed. Several attempts at more realistic models of extended inflation are also analyzed. The importance of the Einstein conformal frame in calculating curvature fluctuations is emphasized. When viewed in this frame, extended inflation closely resembles slow-rollover inflation with an exponential potential, and the usual formula for the amplitude of curvature perturbations applies directly. C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP KOLB, EW (reprint author), FERMI NATL ACCELERATOR LAB,CTR ASTROPHYS,NASA,BATAVIA,IL 60510, USA. NR 39 TC 86 Z9 86 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 DEC 15 PY 1990 VL 42 IS 12 BP 3925 EP 3935 DI 10.1103/PhysRevD.42.3925 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EP278 UT WOS:A1990EP27800004 ER PT J AU SALOPEK, DS BOND, JR AF SALOPEK, DS BOND, JR TI NONLINEAR EVOLUTION OF LONG-WAVELENGTH METRIC FLUCTUATIONS IN INFLATIONARY MODELS SO PHYSICAL REVIEW D LA English DT Article ID QUANTUM COSMOLOGY; DENSITY PERTURBATIONS; UNIVERSE SCENARIO; GENERATION; GAUGE AB Stochastic inflation can be viewed as a sequence of two-step processes. In the first step a stochastic impulse from short-distance quantum fluctuations acts on long waves-the interaction. In the second step the long waves evolve semiclassically-the propagation. Both steps must be developed to address whether fluctuations for cosmic structure formation may be non-Gaussian. We describe a formalism for following the nonlinear propagation of long-wavelength metric and scalar-field fluctuations. We perform an expansion in spatial gradients of the Arnowitt-Deser-Misner equations and we retain only terms up to first order. At each point the fields obey evolution equations like those in a homogeneous universe, but now described by a local scale factor e-(alpha) and Hubble expansion rate H. However, the different points are joined together through the momentum constraint equation. The gradient expansion is appropriate for inflation if the long-wave fields are smoothed over scales below e(-alpha)H-1. Our equations are naturally described in the Einstein-Hamilton-Jacobi framework, which governs an ensemble of inhomogeneous universes, and which may be interpreted as a semiclassical approximation to the quantum theory. We find that the Hubble parameter, which is a function of the local values of the scalar field, obeys a separated Hamilton-Jacobi equation that also governs the semiclassical phase of the wave functional. In our approximation, time hypersurface changes leave the equations invariant. However, the stochastic impulses that change the field initial conditions are most simply given on uniform expansion factor hypersurfaces whereas propagation is most easily solved on uniform Hubble hypersurfaces, in terms of alpha(x(j),H), the nonlinear analog of zeta of linear perturbation theory; we therefore pay special attention to hypersurface shifting. In particular, we describe the transformation process for the fluctuation probability functional. Exact general solutions are found for the case of a single scalar field interacting through an exponential potential. For example, we show that quantum corrections to long-wavelength evolution of the metric are characteristically small using exact Green's-function solutions of the Wheeler-DeWitt equation for this potential. Approximate analytic solutions to our classical system for slowly evolving multiple scalar fields are also easy to obtain in this formalism, contrasting with previous numerical approaches. C1 UNIV TORONTO,CANADIAN INST THEORET ASTROPHYS,CANADIAN INST ADV RES PROGRAM,TORONTO M5S 1A1,ONTARIO,CANADA. RP SALOPEK, DS (reprint author), FERMI NATL ACCELERATOR LAB,CTR ASTROPHYS,NASA,POB 500,MS 209,BATAVIA,IL 60510, USA. NR 48 TC 613 Z9 615 U1 0 U2 2 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 DEC 15 PY 1990 VL 42 IS 12 BP 3936 EP 3962 DI 10.1103/PhysRevD.42.3936 PG 27 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EP278 UT WOS:A1990EP27800005 ER PT J AU AJELLO, JM JAMES, GK FRANKLIN, B HOWELL, S AF AJELLO, JM JAMES, GK FRANKLIN, B HOWELL, S TI STUDY OF ELECTRON-IMPACT EXCITATION OF ARGON IN THE EXTREME ULTRAVIOLET - EMISSION CROSS-SECTION OF RESONANCE LINES OF AR-I, AR-II SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS LA English DT Article ID VACUUM ULTRAVIOLET; RYDBERG SERIES; BAND SYSTEMS; RARE GASES; IONIZATION; H-2; SPECTROMETER; POLARIZATION; SINGLE; NEON AB We have studied in a crossed-beam experiment under optically thin conditions the extreme ultraviolet (EUV) spectrum of argon produced by electron impact excitation. The most prominent features of the EUV spectrum between 40 and 110 nm are the resonance lines of ArI at 104.8 nm and 106.7 nm and of ArII at 91.96 nm and 93.21 nm. Absolute cross sections of these lines at 200 eV are measured by the relative-flow technique and compared with previous estimates. The measured emission cross section values at 200 eV for the ArI lines at 104.8 nm and 106.7 nm are 23.1 X 10-18 cm2 and 9.32 X 10-18 cm2, respectively, with an uncertainty of 14%. When compared with electron energy loss estimates of the direct excitation cross section these values establish that cascading is larger for the ArI resonance lines than previous emission experiments have indicated. In addition all the emission cross sections for the ArI, II Rydberg series in the EUV spectral interval are measured at 0.5 nm resolution. The far ultraviolet (FUV) spectrum of Ar is also surveyed for the first time and is found to consist of ArII multiplets from simultaneous ionization-excitation. C1 UNIV MANCHESTER,DEPT PHYS,MANCHESTER M13 9PL,LANCS,ENGLAND. RP AJELLO, JM (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 38 TC 41 Z9 41 U1 0 U2 7 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0953-4075 J9 J PHYS B-AT MOL OPT JI J. Phys. B-At. Mol. Opt. Phys. PD DEC 14 PY 1990 VL 23 IS 23 BP 4355 EP 4376 DI 10.1088/0953-4075/23/23/017 PG 22 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EQ269 UT WOS:A1990EQ26900017 ER PT J AU DAR, A AF DAR, A TI ASTROPHYSICS AND COSMOLOGY CLOSING IN ON NEUTRINO MASSES SO SCIENCE LA English DT Article C1 TECHNION ISRAEL INST TECHNOL,SPACE RES INST,IL-32000 HAIFA,ISRAEL. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 38 TC 2 Z9 2 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD DEC 14 PY 1990 VL 250 IS 4987 BP 1529 EP 1533 DI 10.1126/science.250.4987.1529 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EM931 UT WOS:A1990EM93100029 PM 17818280 ER PT J AU SPENCER, JR SHURE, MA RESSLER, ME GOGUEN, JD SINTON, WM TOOMEY, DW DENAULT, A WESTFALL, J AF SPENCER, JR SHURE, MA RESSLER, ME GOGUEN, JD SINTON, WM TOOMEY, DW DENAULT, A WESTFALL, J TI DISCOVERY OF HOTSPOTS ON IO USING DISK-RESOLVED INFRARED IMAGING SO NATURE LA English DT Article C1 UNIV HAWAII,INST ASTRON,HONOLULU,HI 96822. CALTECH,JET PROP LAB,PASADENA,CA 91109. ASSOC LUNAR & PLANETARY OBSERVERS,SAN FRANCISCO,CA 94116. NR 21 TC 49 Z9 49 U1 0 U2 1 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD DEC 13 PY 1990 VL 348 IS 6302 BP 618 EP 621 DI 10.1038/348618a0 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EM760 UT WOS:A1990EM76000053 ER PT J AU DOWNIE, JD REID, MB AF DOWNIE, JD REID, MB TI MAPPING CONSIDERATIONS FOR OPTIMAL BINARY CORRELATION FILTERS SO APPLIED OPTICS LA English DT Article ID PHASE-ONLY FILTERS; SIGNAL AB The optimality of correlation filters is an important issue in applications of pattern recognition. We consider here both binary phase-only filters (BPOFs) and amplitude encoded binary phase-only filters (AE BPOFs) and study the results of optimizing the filters for a real world object (the Space Shuttle). We find that while only small improvements result from optimizing a BPOF, optimization of the AE BPOF is quite important in obtaining a useful correlation function. In the case of an AE BPOF, both signal-to-noise and peak-to-sidelobe measures must be studied. Computer simulation and experimental correlation results are presented. RP DOWNIE, JD (reprint author), NASA,AMES RES CTR,INTELLIGENT SYST TECHNOL BRANCH,MOFFETT FIELD,CA 94035, USA. NR 10 TC 2 Z9 2 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 10 PY 1990 VL 29 IS 35 BP 5235 EP 5241 PG 7 WC Optics SC Optics GA EP497 UT WOS:A1990EP49700009 PM 20577544 ER PT J AU RUBINSTEIN, R GREENBERG, PS AF RUBINSTEIN, R GREENBERG, PS TI PARTICLE IMAGE FIELDS AND PARTIAL COHERENCE SO APPLIED OPTICS LA English DT Article ID SPECKLE VELOCIMETRY; NOISE; RADIOMETRY AB The accuracy of Young's fringe method for reducing velocity field data is compromised by a spatially incoherent background field which originates in the random locations of the seeding particles. The probability density function for the spatial frequency cutoff of this background is derived as a function of the particle count, the distribution governing the power in each frequency interval is derived, and conditions are found under which the Van Cittert-Zernike theorem applies. The background field resembles the far field of a partially coherent source in the high particle count limit, but departs significantly at low and moderate counts. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP RUBINSTEIN, R (reprint author), NASA,LEWIS RES CTR GRP,SVERDRUP TECHNOL INC,MIDDLEBURG HTS,OH 44130, USA. NR 19 TC 0 Z9 0 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 10 PY 1990 VL 29 IS 35 BP 5282 EP 5291 PG 10 WC Optics SC Optics GA EP497 UT WOS:A1990EP49700014 PM 20577549 ER PT J AU CHIU, HY AF CHIU, HY TI PONDERABLE SOLITON STARS SO ASTROPHYSICAL JOURNAL LA English DT Article RP CHIU, HY (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,CODE 910-1,GREENBELT,MD 20771, USA. NR 16 TC 7 Z9 7 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 DEC 10 PY 1990 VL 365 IS 1 BP 93 EP 106 DI 10.1086/169460 PN 1 PG 14 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900008 ER PT J AU CHIU, HY AF CHIU, HY TI PONDERABLE SOLITON STARS AND COSMIC BACKGROUND-RADIATION SO ASTROPHYSICAL JOURNAL LA English DT Article RP CHIU, HY (reprint author), NASA, GODDARD SPACE FLIGHT CTR, ATMOSPHERES LAB, CODE 910-1, GREENBELT, MD 20771 USA. NR 17 TC 8 Z9 8 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD DEC 10 PY 1990 VL 365 IS 1 BP 107 EP 114 DI 10.1086/169461 PN 1 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900009 ER PT J AU FREEDMAN, WL MADORE, BF AF FREEDMAN, WL MADORE, BF TI AN EMPIRICAL-TEST FOR THE METALLICITY SENSITIVITY OF THE CEPHEID PERIOD-LUMINOSITY RELATION SO ASTROPHYSICAL JOURNAL LA English DT Article C1 CALTECH,JET PROP LAB,CTR INFRARED PROC & ANALY,NASA,PASADENA,CA 91125. RP FREEDMAN, WL (reprint author), OBSERV CARNEGIE INST WASHINGTON,813 SANTA BARBARA ST,PASADENA,CA 91101, USA. NR 25 TC 285 Z9 286 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 DEC 10 PY 1990 VL 365 IS 1 BP 186 EP 194 DI 10.1086/169469 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900017 ER PT J AU KUTNER, ML VERTER, F RICKARD, LJ AF KUTNER, ML VERTER, F RICKARD, LJ TI CO(J=2-]1) STUDY OF MOLECULAR CLOUDS IN THE SOUTHWEST ARM OF M31 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. USN,RES LAB,EO HULBURT CTR SPACE RES,WASHINGTON,DC 20375. RP KUTNER, ML (reprint author), RENSSELAER POLYTECH INST,DEPT PHYS,TROY,NY 12180, USA. NR 47 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 DEC 10 PY 1990 VL 365 IS 1 BP 195 EP 207 DI 10.1086/169470 PN 1 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900018 ER PT J AU ELLIS, HB LESTER, DF HARVEY, PM JOY, M TELESCO, CM DECHER, R WERNER, MW AF ELLIS, HB LESTER, DF HARVEY, PM JOY, M TELESCO, CM DECHER, R WERNER, MW TI HIGH SPATIAL-RESOLUTION MAPPING OF THE CEPHEUS A REGION AT 20-MICRON, 50-MICRON, AND 100-MICRON SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV TEXAS,DEPT ASTRON,AUSTIN,TX 78712. UNIV TEXAS,MCDONALD OBSERV,AUSTIN,TX 78712. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. NASA,AMES RES CTR,DIV EXPTL SURG,MOFFETT FIELD,CA 94035. NR 23 TC 10 Z9 10 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 DEC 10 PY 1990 VL 365 IS 1 BP 287 EP 295 DI 10.1086/169481 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900029 ER PT J AU IMAMURA, JN KRISTIAN, J MIDDLEDITCH, J STEIMANCAMERON, TY AF IMAMURA, JN KRISTIAN, J MIDDLEDITCH, J STEIMANCAMERON, TY TI THE 8 2ND OPTICAL QUASI-PERIODIC OSCILLATIONS IN GX 339-4 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV OREGON,DEPT PHYS,EUGENE,OR 97403. OBSERV CARNEGIE INST WASHINGTON,PASADENA,CA 91101. UNIV CALIF LOS ALAMOS SCI LAB,COMP RES GRP,LOS ALAMOS,NM 87545. NASA,AMES RES CTR,THEORET STUDIES BRANCH,MOFFETT FIELD,CA 94035. RP IMAMURA, JN (reprint author), UNIV OREGON,INST THEORET SCI,EUGENE,OR 97403, USA. NR 16 TC 21 Z9 21 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 10 PY 1990 VL 365 IS 1 BP 312 EP 316 DI 10.1086/169484 PN 1 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900032 ER PT J AU STEVENS, IR KALLMAN, TR AF STEVENS, IR KALLMAN, TR TI X-RAY ILLUMINATED STELLAR WINDS - IONIZATION EFFECTS IN THE RADIATIVE DRIVING OF STELLAR WINDS IN MASSIVE X-RAY BINARY-SYSTEMS SO ASTROPHYSICAL JOURNAL LA English DT Article RP STEVENS, IR (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 665,GREENBELT,MD 20771, USA. NR 26 TC 54 Z9 54 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 DEC 10 PY 1990 VL 365 IS 1 BP 321 EP 331 DI 10.1086/169486 PN 1 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK729 UT WOS:A1990EK72900034 ER PT J AU BUSS, RH COHEN, M TIELENS, AGGM WERNER, MW BREGMAN, JD WITTEBORN, FC RANK, D SANDFORD, SA AF BUSS, RH COHEN, M TIELENS, AGGM WERNER, MW BREGMAN, JD WITTEBORN, FC RANK, D SANDFORD, SA TI HYDROCARBON EMISSION FEATURES IN THE INFRARED-SPECTRA OF WARM SUPERGIANTS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV CALIF BERKELEY,RADIO ASTRON LAB,BERKELEY,CA 94720. UNIV CALIF SANTA CRUZ,LICK OBSERV,SANTA CRUZ,CA 95064. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP BUSS, RH (reprint author), NASA,AMES RES CTR,MS 245-6,MOFFETT FIELD,CA 94035, USA. NR 29 TC 87 Z9 87 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD DEC 10 PY 1990 VL 365 IS 1 BP L23 EP L26 DI 10.1086/185879 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK731 UT WOS:A1990EK73100006 ER PT J AU MOORE, MH TANABE, T AF MOORE, MH TANABE, T TI MASS-SPECTRA OF SPUTTERED POLYOXYMETHYLENE - IMPLICATIONS FOR COMETS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV MARYLAND,DEPT CHEM & BIOCHEM,COLLEGE PK,MD 20742. RP MOORE, MH (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 691,GREENBELT,MD 20771, USA. NR 32 TC 12 Z9 12 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 DEC 10 PY 1990 VL 365 IS 1 BP L39 EP L42 DI 10.1086/185883 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK731 UT WOS:A1990EK73100010 ER PT J AU CRISP, J KAHLE, AB ABBOTT, EA AF CRISP, J KAHLE, AB ABBOTT, EA TI THERMAL INFRARED SPECTRAL CHARACTER OF HAWAIIAN BASALTIC GLASSES SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article RP CRISP, J (reprint author), CALTECH,JET PROP LAB,MAIL STOP 183-501,4800 OAK GROVE DR,PASADENA,CA 91109, USA. RI Crisp, Joy/H-8287-2016 OI Crisp, Joy/0000-0002-3202-4416 NR 31 TC 47 Z9 47 U1 0 U2 8 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 21657 EP 21669 DI 10.1029/JB095iB13p21657 PG 13 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700023 ER PT J AU DEMETS, C STEIN, S AF DEMETS, C STEIN, S TI PRESENT-DAY KINEMATICS OF THE RIVERA PLATE AND IMPLICATIONS FOR TECTONICS IN SOUTHWESTERN MEXICO SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 NORTHWESTERN UNIV,DEPT GEOL SCI,EVANSTON,IL 60208. RP DEMETS, C (reprint author), CALTECH,JET PROP LAB,MS 238-332,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 85 TC 114 Z9 115 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 21931 EP 21948 DI 10.1029/JB095iB13p21931 PG 18 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700046 ER PT J AU MA, C SAUBER, JM BELL, LJ CLARK, TA GORDON, D HIMWICH, WE RYAN, JW AF MA, C SAUBER, JM BELL, LJ CLARK, TA GORDON, D HIMWICH, WE RYAN, JW TI MEASUREMENT OF HORIZONTAL MOTIONS IN ALASKA USING VERY LONG BASE-LINE INTERFEROMETRY SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 UNIV MARYLAND,DEPT ASTRON,COLLEGE PK,MD 20740. NASA,GODDARD SPACE FLIGHT CTR,SPACE GEODESY BRANCH,GREENBELT,MD 20770. ST SYST CORP,LANHAM,MD 20706. INTERFEROMETR INC,VIENNA,VA 22180. RP MA, C (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GEODYNAM BRANCH,CODE 9210,GREENBELT RD,GREENBELT,MD 20771, USA. RI Ma, Chopo/D-4751-2012; Sauber, Jeanne/D-7684-2012 NR 78 TC 110 Z9 121 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 21991 EP 22011 DI 10.1029/JB095iB13p21991 PG 21 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700050 ER PT J AU SMITH, DE KOLENKIEWICZ, R DUNN, PJ ROBBINS, JW TORRENCE, MH KLOSKO, SM WILLIAMSON, RG PAVLIS, EC DOUGLAS, NB FRICKE, SK AF SMITH, DE KOLENKIEWICZ, R DUNN, PJ ROBBINS, JW TORRENCE, MH KLOSKO, SM WILLIAMSON, RG PAVLIS, EC DOUGLAS, NB FRICKE, SK TI TECTONIC MOTION AND DEFORMATION FROM SATELLITE LASER RANGING TO LAGEOS SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 UNIV MARYLAND,ASTRON PROGRAM,COLLEGE PK,MD 20742. RMS TECHNOL INC,LANDOVER,MD 20785. RP SMITH, DE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,CODE 920,GREENBELT,MD 20771, USA. NR 63 TC 69 Z9 70 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 22013 EP 22041 DI 10.1029/JB095iB13p22013 PG 29 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700051 ER PT J AU MARSH, JG LERCH, FJ PUTNEY, BH FELSENTREGER, TL SANCHEZ, BV KLOSKO, SM PATEL, GB ROBBINS, JW WILLIAMSON, RG ENGELIS, TL EDDY, WF CHANDLER, NL CHINN, DS KAPOOR, S RACHLIN, KE BRAATZ, LE PAVLIS, EC AF MARSH, JG LERCH, FJ PUTNEY, BH FELSENTREGER, TL SANCHEZ, BV KLOSKO, SM PATEL, GB ROBBINS, JW WILLIAMSON, RG ENGELIS, TL EDDY, WF CHANDLER, NL CHINN, DS KAPOOR, S RACHLIN, KE BRAATZ, LE PAVLIS, EC TI THE GEM-T2 GRAVITATIONAL MODEL SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 ST SYST CORP,LANHAM,MD 20706. UNIV MARYLAND,ASTRON PROGRAM,COLLEGE PK,MD 20742. RP MARSH, JG (reprint author), NASA,GODDARD SPACE FLIGHT CTR,SPACE GEODESY BRANCH,CODE 926,GREENBELT,MD 20771, USA. RI Sanchez, Braulio/I-5952-2013 NR 49 TC 112 Z9 112 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD DEC 10 PY 1990 VL 95 IS B13 BP 22043 EP 22071 DI 10.1029/JB095iB13p22043 PG 29 WC Geosciences, Multidisciplinary SC Geology GA EN177 UT WOS:A1990EN17700052 ER PT J AU DELLACORTE, C STEINETZ, BM BRINDLEY, PK AF DELLACORTE, C STEINETZ, BM BRINDLEY, PK TI TRIBOLOGICAL PROPERTIES OF CERAMIC-(TI3AL-NB) SLIDING COUPLES FOR USE AS CANDIDATE SEAL MATERIALS TO 700-DEGREES-C SO SURFACE & COATINGS TECHNOLOGY LA English DT Article; Proceedings Paper CT 17TH INTERNATIONAL CONF ON METALLURGICAL COATINGS / 8TH INTERNATIONAL CONF ON THIN FILMS CY APR 02-06, 1990 CL SAN DIEGO, CA AB Tribological properties of Ti3Al-Nb intermetallic disks sliding against alumina-boria-silicate fabric were ascertained in air at temperatures from 25 to 700-degrees-C. These materials are candidates for sliding seal applications for the National AeroSpace Plane. The tests were performed using a pin-on-disk tribometer. Sliding was unidirectional at 0.27 m s-1 under a nominal contact stress of 340 kPa. Gold sputter or ion plating deposited films were used to reduce friction and wear. Rhodium and palladium films were used beneath the gold lubicating films to prevent diffusion of the substrate into the gold at high temperature. The friction and wear of the unlubricated specimens were unacceptable. Friction coefficients were generally greater than 1.0. The ion-plated gold films when used with a rhodium diffusion barrier reduced friction by almost a factor of 2. Wear was also substantially reduced. The sputter-deposited films were not adherent unless the substrate was sputter cleaned immediately prior to film deposition. Palladium did not function as a diffusion barrier. RP DELLACORTE, C (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 8 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD DEC 10 PY 1990 VL 43-4 IS 1-3 BP 663 EP 673 DI 10.1016/0257-8972(90)90010-A PG 11 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EQ900 UT WOS:A1990EQ90000009 ER PT J AU MIYOSHI, K AF MIYOSHI, K TI STUDIES OF MECHANOCHEMICAL INTERACTIONS IN THE TRIBOLOGICAL BEHAVIOR OF MATERIALS SO SURFACE & COATINGS TECHNOLOGY LA English DT Article; Proceedings Paper CT 17TH INTERNATIONAL CONF ON METALLURGICAL COATINGS / 8TH INTERNATIONAL CONF ON THIN FILMS CY APR 02-06, 1990 CL SAN DIEGO, CA ID HYDROGENATED CARBON-FILMS; WEAR; CORROSION; IRON AB Mechanochemical interaction studies can contribute to our understanding of wear and friction of materials. Specific examples of experimental results relative to the subject are discussed. There are two parts to this paper; in one part the synergistic effect of corrosion and wear of iron sliding on sapphire in sulfuric acid is described, and in the other part the effect of surface films on the wear and friction of plasma-deposited diamond-like carbon (DLC) (amorphous hydrogenated carbon) films in sliding contact with silicon nitride is described. The concentration of acid (pH) is an important factor in controlling the iron loss caused by wear-corrosion processes in sulfuric acid. The mechanical action can cause chemical reactions to proceed much faster than they would otherwise. The DLC films are shown to behave tribologically much like bulk diamond. In a dry nitrogen environment, a mechanochemical reaction produces a substance which greatly decreases the coefficient of friction. In a moist air environment, mechanochemical interactions drastically reduce the wear life of DLC films and water vapor greatly increases friction. RP MIYOSHI, K (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 24 TC 34 Z9 34 U1 1 U2 9 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD DEC 10 PY 1990 VL 43-4 IS 1-3 BP 799 EP 812 DI 10.1016/0257-8972(90)90022-5 PG 14 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EQ900 UT WOS:A1990EQ90000021 ER PT J AU LEE, RQ TALTY, T LEE, KF AF LEE, RQ TALTY, T LEE, KF TI CIRCULAR-POLARIZATION CHARACTERISTICS OF STACKED MICROSTRIP ANTENNAS SO ELECTRONICS LETTERS LA English DT Article C1 UNIV TOLEDO,DEPT ELECT ENGN,TOLEDO,OH 43606. RP LEE, RQ (reprint author), NASA,LEWIS RES CTR,MS 54-8,21000 BROOKPK RD,CLEVELAND,OH 44135, USA. NR 5 TC 9 Z9 9 U1 0 U2 0 PU IEE-INST ELEC ENG PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD DEC 6 PY 1990 VL 26 IS 25 BP 2109 EP 2110 DI 10.1049/el:19901357 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA EN571 UT WOS:A1990EN57100031 ER PT J AU CASALE, E WENISCH, E HE, XM RIGHETTI, PG SNYDER, RS JUNGBAUER, A TAUER, C RUKER, F CARTER, DC AF CASALE, E WENISCH, E HE, XM RIGHETTI, PG SNYDER, RS JUNGBAUER, A TAUER, C RUKER, F CARTER, DC TI CRYSTALLIZATION OF THE FAB FROM A HUMAN MONOCLONAL-ANTIBODY AGAINST GP-41 OF HUMAN-IMMUNODEFICIENCY-VIRUS TYPE-I SO JOURNAL OF MOLECULAR BIOLOGY LA English DT Note C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. UNIV AGR & FORESTRY,INST APPL MICROBIOL,A-1190 VIENNA,AUSTRIA. UNIV MILAN,DEPT BIOMED SCI & TECHNOL,I-20133 MILAN,ITALY. OI Jungbauer, Alois/0000-0001-8182-7728 NR 11 TC 5 Z9 5 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-2836 J9 J MOL BIOL JI J. Mol. Biol. PD DEC 5 PY 1990 VL 216 IS 3 BP 511 EP 512 DI 10.1016/0022-2836(90)90377-X PG 2 WC Biochemistry & Molecular Biology SC Biochemistry & Molecular Biology GA EN376 UT WOS:A1990EN37600009 PM 2258926 ER PT J AU BRINDLEY, WJ MILLER, RA AF BRINDLEY, WJ MILLER, RA TI THERMAL BARRIER COATING LIFE AND ISOTHERMAL OXIDATION OF LOW-PRESSURE PLASMA-SPRAYED BOND COAT ALLOYS SO SURFACE & COATINGS TECHNOLOGY LA English DT Article; Proceedings Paper CT 17TH INTERNATIONAL CONF ON METALLURGICAL COATINGS / 8TH INTERNATIONAL CONF ON THIN FILMS CY APR 02-06, 1990 CL SAN DIEGO, CA SP AMER VACUUM SOC, DIV VACUUM MET, INT UNION VACUUM SCI, DIV THIN FILM AB The isothermal oxidation kinetics of Ni-35Cr-6Al-0.95Y, Ni-18Cr-12Al-0.3Y and Ni-16Cr-6Al-0.3Y (composition in weight per cent) low-pressure plasma-sprayed bond coat alloys were investigated and the effect of these alloys on the thermal barrier coating (TBC) cyclic life was examined. TBC life was examined by cycling substrates coated with the different bond coats and a ZrO2-7wt.%Y2O3 TBC in an air-rich burner rig flame between 1150-degrees-C and room temperature. The oxidation kinetics of the three bond coat alloys were examined by isothermal oxidation of monolithic NiCrAlY coupons at 1083-degrees-C. The Ni-35Cr-6Al-0.95Y alloy exhibited comparatively high isothermal oxidation weight gains and provided the longest TBC life, whereas the Ni-16Cr-6Al-0.3Y alloy had the lowest weight gains and provided the lowest TBC life. The results clearly show that, although bond coat oxidation is known to have a strong detrimental effect on TBC life, it is not the only bond coat factor that determines TBC life. The alpha-Cr phase was observed in the bond coat metal for the Ni-35Cr-6Al-0.95Y and Ni-18Cr-12Al-0.3Y alloys, but not for the Ni-16Cr-6Al-0.3Y alloy. The presence of alpha-Cr may reduce the coefficient of thermal expansion of the Ni-35Cr-6Al-0.95Y and Ni-18Cr-12Al-0.3Y alloys, thereby increasing the TBC lives on these bond coats relative to the Ni-16Cr-6Al-0.3Y coating. RP BRINDLEY, WJ (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 14 TC 94 Z9 109 U1 1 U2 17 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD DEC 5 PY 1990 VL 43-4 IS 1-3 BP 446 EP 457 DI 10.1016/0257-8972(90)90096-U PG 12 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EP995 UT WOS:A1990EP99500045 ER PT J AU NESBITT, JA AF NESBITT, JA TI THERMAL RESPONSE OF VARIOUS THERMAL BARRIER COATINGS IN A HIGH HEAT-FLUX ROCKET ENGINE SO SURFACE & COATINGS TECHNOLOGY LA English DT Article; Proceedings Paper CT 17TH INTERNATIONAL CONF ON METALLURGICAL COATINGS / 8TH INTERNATIONAL CONF ON THIN FILMS CY APR 02-06, 1990 CL SAN DIEGO, CA SP AMER VACUUM SOC, DIV VACUUM MET, INT UNION VACUUM SCI, DIV THIN FILM AB Traditional APS ZrO2-Y2O3 thermal barrier coatings (TBCs) formed by air plasma spraying (APS) and low pressure and air plasma sprayed ZrO2-Y2O3/NiCrAlY cermet coatings werre tested in an H2-O2 rocket engine located at the NASA Lewis Research Center. The test cycle was approximately 1.2 s at 1400-degrees-C in a hydrogen-rich environment. During testing, the maximum metal temperature without a coating was 1310-degrees-C. The traditional ZrO2-Y2O3 TBCs with a 100-125-mu-m thick ceramic layer reduced the maximum metal temperature by approximately 350-degrees-C. Increasing the ceramic layer thickness to 200-225-mu-m resulted in an additional metal temperature reduction of 100-degrees-C. However, the cermet coatings, consisting of a ceramic and metal mixture, exhibited a much lower thermal protection capability by reducing the maximum metal temperature by approximately 100-degrees-C. It was also found that the surface roughness of the traditional TBCs had little effect on the thermal response. RP NESBITT, JA (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 8 TC 19 Z9 20 U1 0 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD DEC 5 PY 1990 VL 43-4 IS 1-3 BP 458 EP 469 DI 10.1016/0257-8972(90)90097-V PG 12 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EP995 UT WOS:A1990EP99500046 ER PT J AU BELL, JH MEHTA, RD AF BELL, JH MEHTA, RD TI DEVELOPMENT OF A 2-STREAM MIXING LAYER FROM TRIPPED AND UNTRIPPED BOUNDARY-LAYERS SO AIAA JOURNAL LA English DT Article ID FREE SHEAR LAYERS; PLANE; TURBULENT AB A two-stream mixing layer with a velocity ratio of 0.6 was generated with two different initial conditions; one with both initial boundary layers laminar and one where both boundary layers were tripped. Some recent measurements have shown that relatively large spanwise variations can occur in the mean flow and turbulence properties of plane mixing layers, especially in the untripped case. Therefore, for the first time, all the data presented here were averaged over several spanwise locations. The results indicate that both the near- and far-field growth rates for the untripped case are significantly higher than for the tripped case. The maximum Reynolds stresses and higher order products for the two cases behave very differently in the near-field, but asymptote to approximately the same constant levels far downstream. The mean velocity and turbulence profiles in this region also collapse adequately for the two cases when plotted in similarity coordinates. The distance required to achieve self-similarity was found to be distinctly shorter for the tripped case, in contrast to previous observations. The higher growth rate for the untripped case is attributed to the presence of streamwise vortices, which result in additional entrainment by the mixing layer. C1 STANFORD UNIV,DEPT AERONAUT & ASTRONAUT,STANFORD,CA 94305. RP BELL, JH (reprint author), STANFORD UNIV,NASA AMES,CTR TURBULANCE RES,STANFORD,CA 94305, USA. NR 22 TC 143 Z9 148 U1 1 U2 10 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD DEC PY 1990 VL 28 IS 12 BP 2034 EP 2042 DI 10.2514/3.10519 PG 9 WC Engineering, Aerospace SC Engineering GA EU960 UT WOS:A1990EU96000003 ER PT J AU GURUSWAMY, GP AF GURUSWAMY, GP TI VORTICAL FLOW COMPUTATIONS ON SWEPT FLEXIBLE WINGS USING NAVIER-STOKES EQUATIONS SO AIAA JOURNAL LA English DT Article ID ALGORITHM; FORM AB A procedure to couple the Navier-Stokes solutions with modal structural equations of motion is presented for computing aeroelastic responses of swept flexible wings. The Navier-Stokes flow equations are solved by a finite-difference scheme with dynamic grids. The coupled aeroelastic equations of motion are solved using the linear-acceleration method. The configuration-adaptive dynamic grids are time-accurately generated using the aeroelasticlly deformed shape of the wing. The calculations are compared with the experiment when available. Effects of flexibility, sweep angle, and pitch rate are demonstrated for flows with vortices. RP GURUSWAMY, GP (reprint author), NASA,AMES RES CTR,APPL COMPUTAT FLUIDS BRANCH,MOFFETT FIELD,CA 94035, USA. NR 16 TC 11 Z9 12 U1 1 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD DEC PY 1990 VL 28 IS 12 BP 2077 EP 2084 DI 10.2514/3.10524 PG 8 WC Engineering, Aerospace SC Engineering GA EU960 UT WOS:A1990EU96000008 ER PT J AU TUCKER, DS SPARKS, JS ESKER, DC AF TUCKER, DS SPARKS, JS ESKER, DC TI PRODUCTION OF CONTINUOUS MULLITE FIBER VIA SOL-GEL PROCESSING SO AMERICAN CERAMIC SOCIETY BULLETIN LA English DT Article RP TUCKER, DS (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812, USA. NR 13 TC 12 Z9 12 U1 0 U2 1 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, PO BOX 6136, WESTERVILLE, OH 43081-6136 SN 0002-7812 J9 AM CERAM SOC BULL JI Am. Ceram. Soc. Bull. PD DEC PY 1990 VL 69 IS 12 BP 1971 EP 1974 PG 4 WC Materials Science, Ceramics SC Materials Science GA EM384 UT WOS:A1990EM38400016 ER PT J AU STARBIRD, TW AF STARBIRD, TW TI RAYS IN NORMED LINEAR-SPACES SO AMERICAN MATHEMATICAL MONTHLY LA English DT Letter RP STARBIRD, TW (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU MATHEMATICAL ASSOC AMER PI WASHINGTON PA 1529 18TH STREET NW, WASHINGTON, DC 20036 SN 0002-9890 J9 AM MATH MON JI Am. Math. Mon. PD DEC PY 1990 VL 97 IS 10 BP 932 EP 933 PG 2 WC Mathematics SC Mathematics GA EL247 UT WOS:A1990EL24700018 ER PT J AU MAY, RD WEBSTER, CR AF MAY, RD WEBSTER, CR TI BALLOON-BORNE LASER SPECTROMETER MEASUREMENTS OF NO2 WITH GAS-ABSORPTION SENSITIVITIES BELOW 10-5 SO APPLIED OPTICS LA English DT Note RP MAY, RD (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 17 TC 11 Z9 11 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD DEC 1 PY 1990 VL 29 IS 34 BP 5042 EP 5045 PG 4 WC Optics SC Optics GA EN069 UT WOS:A1990EN06900004 PM 20577504 ER PT J AU SMITH, MA AF SMITH, MA TI SETTING NULL LIMITS ON PULSATION IN THE TWIN F0-STARS GAMMA-VIR N/S SO ASTRONOMICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,IUE OBSERV,GREENBELT,MD 20771. RP SMITH, MA (reprint author), COMP SCI CORP,SCI PROGRAMS,10000-A AEROSP RD,LANHAM,MD 20716, USA. NR 19 TC 3 Z9 3 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD DEC PY 1990 VL 100 IS 6 BP 1943 EP 1950 DI 10.1086/115649 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EK585 UT WOS:A1990EK58500018 ER PT J AU SWEIGART, AV GREGGIO, L RENZINI, A AF SWEIGART, AV GREGGIO, L RENZINI, A TI THE DEVELOPMENT OF THE RED GIANT BRANCH .2. ASTROPHYSICAL PROPERTIES SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV BOLOGNA,DIPARTIMENTO ASTRON,I-40100 BOLOGNA,ITALY. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. NR 34 TC 111 Z9 111 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 DEC 1 PY 1990 VL 364 IS 2 BP 527 EP 539 DI 10.1086/169434 PN 1 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ401 UT WOS:A1990EJ40100018 ER PT J AU SCHAEFER, BE AF SCHAEFER, BE TI GAMMA-RAY BURSTER COUNTERPARTS - ARCHIVAL DATA SO ASTROPHYSICAL JOURNAL LA English DT Article RP SCHAEFER, BE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 661,GREENBELT,MD 20771, USA. NR 59 TC 37 Z9 37 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 DEC 1 PY 1990 VL 364 IS 2 BP 590 EP & DI 10.1086/169442 PN 1 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ401 UT WOS:A1990EJ40100026 ER PT J AU MARSH, TR HORNE, K SCHLEGEL, EM HONEYCUTT, RK KAITCHUCK, RH AF MARSH, TR HORNE, K SCHLEGEL, EM HONEYCUTT, RK KAITCHUCK, RH TI DOPPLER IMAGING OF THE DWARF NOVA U-GEMINORUM SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. INDIANA UNIV,DEPT ASTRON,BLOOMINGTON,IN 47405. OHIO STATE UNIV,DEPT ASTRON,COLUMBUS,OH 43210. RP MARSH, TR (reprint author), SPACE TELESCOPE SCI INST,3700 SAN MARTIN DR,BALTIMORE,MD 21218, USA. NR 26 TC 103 Z9 103 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 DEC 1 PY 1990 VL 364 IS 2 BP 637 EP 646 DI 10.1086/169446 PN 1 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ401 UT WOS:A1990EJ40100030 ER PT J AU VENNES, S SHIPMAN, HL PETRE, R AF VENNES, S SHIPMAN, HL PETRE, R TI ON THE INTERPRETATION OF THE EXOSAT PHOTOMETRY OF 2 HOT DA-WHITE DWARFS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RP VENNES, S (reprint author), UNIV DELAWARE,DEPT PHYS & ASTRON,SHARP LAB,NEWARK,DE 19716, USA. RI Vennes, Stephane/G-9903-2014 NR 35 TC 7 Z9 7 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 DEC 1 PY 1990 VL 364 IS 2 BP 647 EP 656 DI 10.1086/169447 PN 1 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ401 UT WOS:A1990EJ40100031 ER PT J AU ANDERSON, ER DUVALL, TL JEFFERIES, SM AF ANDERSON, ER DUVALL, TL JEFFERIES, SM TI MODELING OF SOLAR OSCILLATION POWER SPECTRA SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19711. RP ANDERSON, ER (reprint author), NATL OPT ASTRON OBSERV,NATL SOLAR OBSERV,GLOBAL OSCILLAT NETWORK GRP,POB 26732,TUCSON,AZ 85726, USA. RI Duvall, Thomas/C-9998-2012 NR 13 TC 209 Z9 209 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 DEC 1 PY 1990 VL 364 IS 2 BP 699 EP 705 DI 10.1086/169452 PN 1 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ401 UT WOS:A1990EJ40100036 ER PT J AU DEMING, D HEWAGAMA, T JENNINGS, DE OSHEROVICH, V WIEDEMANN, G ZIRIN, H AF DEMING, D HEWAGAMA, T JENNINGS, DE OSHEROVICH, V WIEDEMANN, G ZIRIN, H TI OBSERVATIONS OF THE 12.3 MICRON MG-I EMISSION-LINE DURING A MAJOR SOLAR-FLARE SO ASTROPHYSICAL JOURNAL LA English DT Article C1 CALTECH,BIG BEAR SOLAR OBSERV,PASADENA,CA 91125. UNIV MARYLAND,ASTRON PROGRAM,COLLEGE PK,MD 20742. RP DEMING, D (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 693,GREENBELT,MD 20771, USA. RI Hewagama, T/C-8488-2012; Jennings, Donald/D-7978-2012 NR 21 TC 8 Z9 8 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 DEC 1 PY 1990 VL 364 IS 2 BP L49 EP & DI 10.1086/185872 PN 2 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ403 UT WOS:A1990EJ40300007 ER PT J AU BAGIAN, JP AF BAGIAN, JP TI SPACE-MEDICINE AND ITS INFLIGHT PRACTICE SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE LA English DT Editorial Material RP BAGIAN, JP (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AEROSPACE MEDICAL ASSOC PI ALEXANDRIA PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 SN 0095-6562 J9 AVIAT SPACE ENVIR MD JI Aviat. Space Environ. Med. PD DEC PY 1990 VL 61 IS 12 BP 1171 EP 1171 PG 1 WC Public, Environmental & Occupational Health; Medicine, General & Internal; Sport Sciences SC Public, Environmental & Occupational Health; General & Internal Medicine; Sport Sciences GA EM052 UT WOS:A1990EM05200019 ER PT J AU OTTERMAN, J MANES, A RUBIN, S ALPERT, P STARR, DO AF OTTERMAN, J MANES, A RUBIN, S ALPERT, P STARR, DO TI AN INCREASE OF EARLY RAINS IN SOUTHERN ISRAEL FOLLOWING LAND-USE CHANGE SO BOUNDARY-LAYER METEOROLOGY LA English DT Article C1 TEL AVIV UNIV,IL-69978 TEL AVIV,ISRAEL. ISRAEL METEOROL SERV,BET DAGAN,ISRAEL. RP OTTERMAN, J (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 913,GREENBELT,MD 20771, USA. NR 46 TC 48 Z9 48 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0006-8314 J9 BOUND-LAY METEOROL JI Bound.-Layer Meteor. PD DEC PY 1990 VL 53 IS 4 BP 333 EP 351 DI 10.1007/BF02186093 PG 19 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EK341 UT WOS:A1990EK34100002 ER PT J AU TAI, H AF TAI, H TI EXPLICIT EXPRESSIONS FOR MULTICENTER MOLECULAR INTEGRALS OF SLATER S-ORBITALS AND P-ORBITALS SO CHINESE JOURNAL OF PHYSICS LA English DT Article RP TAI, H (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU PHYSICAL SOC REPUBLIC CHINA PI TAIPEI PA CHINESE JOURNAL PHYSICS PO BOX 23-30, TAIPEI 10764, TAIWAN SN 0577-9073 J9 CHINESE J PHYS JI Chin. J. Phys. PD DEC PY 1990 VL 28 IS 6 BP 481 EP 490 PG 10 WC Physics, Multidisciplinary SC Physics GA EM162 UT WOS:A1990EM16200002 ER PT J AU ASRAR, G MURPHY, RE AF ASRAR, G MURPHY, RE TI INTERDISCIPLINARY RESEARCH AND RETROSPECTIVE SATELLITE DATA-ANALYSIS IN STUDYING THE BIOSPHERE-ATMOSPHERE COUPLING SO CLIMATIC CHANGE LA English DT Editorial Material RP ASRAR, G (reprint author), NASA,NASA HEADQUARTERS,MAIL CODE SE,WASHINGTON,DC 20546, USA. NR 3 TC 3 Z9 3 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD DEC PY 1990 VL 17 IS 2-3 BP 143 EP 146 DI 10.1007/BF00138366 PG 4 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA EJ173 UT WOS:A1990EJ17300001 ER PT J AU CHOUDHURY, BJ AF CHOUDHURY, BJ TI A COMPARATIVE-ANALYSIS OF SATELLITE-OBSERVED VISIBLE REFLECTANCE AND 37 GHZ POLARIZATION DIFFERENCE TO ASSESS LAND SURFACE CHANGE OVER THE SAHEL ZONE, 1982-1986 SO CLIMATIC CHANGE LA English DT Article RP CHOUDHURY, BJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HYDROL SCI BRANCH,GREENBELT,MD 20771, USA. NR 28 TC 11 Z9 11 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD DEC PY 1990 VL 17 IS 2-3 BP 193 EP 208 DI 10.1007/BF00138368 PG 16 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA EJ173 UT WOS:A1990EJ17300003 ER PT J AU BRYANT, NA JOHNSON, LF BRAZEL, AJ BALLING, RC HUTCHINSON, CF BECK, LR AF BRYANT, NA JOHNSON, LF BRAZEL, AJ BALLING, RC HUTCHINSON, CF BECK, LR TI MEASURING THE EFFECT OF OVERGRAZING IN THE SONORAN DESERT SO CLIMATIC CHANGE LA English DT Article C1 ARIZONA STATE UNIV,CLIMATOL LAB,TEMPE,AZ 85287. UNIV ARIZONA,OFF ARID LANDS STUDIES,TUCSON,AZ 85719. RP BRYANT, NA (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 47 TC 41 Z9 43 U1 0 U2 7 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0165-0009 J9 CLIMATIC CHANGE JI Clim. Change PD DEC PY 1990 VL 17 IS 2-3 BP 243 EP 264 DI 10.1007/BF00138370 PG 22 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA EJ173 UT WOS:A1990EJ17300005 ER PT J AU BERLAD, AL ROSS, H FACCA, L TANGIRALA, V AF BERLAD, AL ROSS, H FACCA, L TANGIRALA, V TI PARTICLE CLOUD FLAMES IN ACOUSTIC FIELDS SO COMBUSTION AND FLAME LA English DT Note C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP BERLAD, AL (reprint author), UNIV CALIF SAN DIEGO,CTR ENERGY & COMBUST RES,DEPT APPL MECH & ENGN SCI,LA JOLLA,CA 92093, USA. NR 6 TC 18 Z9 19 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0010-2180 J9 COMBUST FLAME JI Combust. Flame PD DEC PY 1990 VL 82 IS 3-4 BP 448 EP & DI 10.1016/0010-2180(90)90015-J PG 0 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA EQ851 UT WOS:A1990EQ85100015 ER PT J AU MURATORE, JF HEINDEL, TA MURPHY, TB RASMUSSEN, AN MCFARLAND, RZ AF MURATORE, JF HEINDEL, TA MURPHY, TB RASMUSSEN, AN MCFARLAND, RZ TI REAL-TIME DATA ACQUISITION AT MISSION CONTROL SO COMMUNICATIONS OF THE ACM LA English DT Article C1 NASA,LYNDON B JOHNSON SPACE CTR,REAL TIME DATA SYST PROJECT,HOUSTON,TX 77058. RP MURATORE, JF (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,DIV RECONFIGURAT MANAGEMENT,HOUSTON,TX 77058, USA. NR 4 TC 1 Z9 1 U1 0 U2 1 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036 SN 0001-0782 J9 COMMUN ACM JI Commun. ACM PD DEC PY 1990 VL 33 IS 12 BP 18 EP 31 DI 10.1145/96267.96277 PG 14 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA EL996 UT WOS:A1990EL99600004 ER PT J AU CHANG, CL JIANG, BN AF CHANG, CL JIANG, BN TI AN ERROR ANALYSIS OF LEAST-SQUARES FINITE-ELEMENT METHOD OF VELOCITY PRESSURE VORTICITY-FORMULATION FOR STOKES PROBLEM SO COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING LA English DT Article AB This paper gives a theoretical error analysis for a least-squares finite element method for the Stokes problem based upon the velocity-pressure-vorticity formulation. It shows that this method converges at the optimal rate for equal-order interpolation. The numerical experiments have been given in a previous paper [Vol. 78, pp. 297-311]. C1 NASA, LEWIS RES CTR, ICOMP, CLEVELAND, OH 44135 USA. RP CHANG, CL (reprint author), CLEVELAND STATE UNIV, DEPT MATH, CLEVELAND, OH 44115 USA. NR 14 TC 45 Z9 45 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0045-7825 J9 COMPUT METHOD APPL M JI Comput. Meth. Appl. Mech. Eng. PD DEC PY 1990 VL 84 IS 3 BP 247 EP 255 PG 9 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications; Mechanics SC Engineering; Mathematics; Mechanics GA ER349 UT WOS:A1990ER34900003 ER PT J AU CHAPMAN, JJ AF CHAPMAN, JJ TI ELECTRONICALLY SCANNED MULTICHANNEL PRESSURE TRANSDUCER SYSTEM FOR CRYOGENIC ENVIRONMENTS SO CRYOGENICS LA English DT Article DE MEASURING INSTRUMENTS; THERMAL PROPERTIES; PIEZORESISTIVE PRESSURE SENSORS AB Research into the application of custom doped piezoresistive silicon pressure sensors has led to a multichannel pressure sensor design that will operate accurately and reliably at cryogenic temperatures. The thermal effects upon multichannel pressure sensors are mapped by thermal calibrations and are represented by sets of nth order coefficients specific to each sensor. The thermal offset and sensitivity variations are corrected by computer algorithms which scan the sensors, recall correction coefficients from thermally induced sensor variations and apply these to correct the sensor's output measurement uncertainty to within 0.5% of full scale output for combined offset and sensitivity. A prototype sensor system has been fabricated and performance test data are presented. RP CHAPMAN, JJ (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 7 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0011-2275 J9 CRYOGENICS JI Cryogenics PD DEC PY 1990 VL 30 IS 12 BP 1104 EP 1108 DI 10.1016/0011-2275(90)90216-Y PG 5 WC Thermodynamics; Physics, Applied SC Thermodynamics; Physics GA EQ220 UT WOS:A1990EQ22000021 ER PT J AU NELSON, D AF NELSON, D TI NETWORK DETECTION SO DR DOBBS JOURNAL LA English DT Letter C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 1 TC 0 Z9 0 U1 0 U2 0 PU MILLER FREEMAN, INC PI SAN MATEO PA 411 BOREL AVE, SAN MATEO, CA 94402-3522 SN 1044-789X J9 DR DOBBS J JI Dr. Dobbs J. PD DEC PY 1990 VL 15 IS 12 BP 12 EP 12 PG 1 WC Computer Science, Software Engineering SC Computer Science GA EG244 UT WOS:A1990EG24400007 ER PT J AU PRABHAKARAN, R LOPEZ, OF AF PRABHAKARAN, R LOPEZ, OF TI APPLICATION OF CARBON-POWDER-POLYMER COMPOSITE AS A CONTINUOUS CRACK-LENGTH SENSOR SO EXPERIMENTAL MECHANICS LA English DT Article AB This paper explores the application of carbon-powder-impregnated polymeric composites for measuring crack extensions. The strain sensitivity of the gage material is shown to be very small. In the first series of tests, the gage material is characterized by measuring the change in electrical resistance due to machined slits for various gage lengths. The measured response is compared with the response predicted from a very simple electrical model. On the basis of good correlation and repeatability, the usefulness of such gages to measure crack extensions is assessed by a second series of tests. Further work to improve the gage response by optimizing the shape of the gage and making the gage and the adhesive layer thinner is proposed. The presented concept, with improvements, can result in a reliable, inexpensive crack gage requiring inexpensive instrumentation. C1 NASA,LANGLEY RES CTR,STRUCT MECH BRANCH,HAMPTON,VA 23665. RP PRABHAKARAN, R (reprint author), OLD DOMINION UNIV,DEPT MECH ENGN,NORFOLK,VA 23529, USA. NR 8 TC 0 Z9 0 U1 0 U2 1 PU SOC EXPERIMENTAL MECHANICS PI BETHEL PA 7 SCHOOL STREET, BETHEL, CT 06801 SN 0014-4851 J9 EXP MECH JI Exp. Mech. PD DEC PY 1990 VL 30 IS 4 BP 332 EP 335 DI 10.1007/BF02321500 PG 4 WC Materials Science, Multidisciplinary; Mechanics; Materials Science, Characterization & Testing SC Materials Science; Mechanics GA ER567 UT WOS:A1990ER56700004 ER PT J AU DERSTINE, MS PINDERA, MJ BOWLES, DE AF DERSTINE, MS PINDERA, MJ BOWLES, DE TI EXPERIMENTAL ANALYTICAL CHARACTERIZATION OF COMPOSITE TUBES UNDER COMBINED LOADING SO EXPERIMENTAL MECHANICS LA English DT Article ID UNIDIRECTIONAL COMPOSITES; SHEAR CHARACTERIZATION AB The paper outlines the results of an investigation to characterize the response of P75/934 graphite/epoxy tubes with a stacking sequence of [15/0/ +/- 10/0/ - 15]s under pure torsion and combined axial/torsion loading. The experimentally observed nonlinear response and path-dependent failure are discussed in terms of material nonlinearities at the ply level and first-ply failure loads with the help of an analytical model. C1 UNIV VIRGINIA,DEPT CIVIL ENGN,CHARLOTTESVILLE,VA 22901. NASA,LANGLEY RES CTR,APPL MAT BRANCH,HAMPTON,VA 23665. RP DERSTINE, MS (reprint author), ATLANTIC RES CORP,5390 CHEROKEE AVE,ALEXANDRIA,VA 22312, USA. NR 12 TC 1 Z9 1 U1 0 U2 1 PU SOC EXPERIMENTAL MECHANICS PI BETHEL PA 7 SCHOOL STREET, BETHEL, CT 06801 SN 0014-4851 J9 EXP MECH JI Exp. Mech. PD DEC PY 1990 VL 30 IS 4 BP 336 EP 344 DI 10.1007/BF02321501 PG 9 WC Materials Science, Multidisciplinary; Mechanics; Materials Science, Characterization & Testing SC Materials Science; Mechanics GA ER567 UT WOS:A1990ER56700005 ER PT J AU SASAKI, M NAKAMURA, T AF SASAKI, M NAKAMURA, T TI GRAVITATIONAL-RADIATION FROM AN EXTREME KERR BLACK-HOLE SO GENERAL RELATIVITY AND GRAVITATION LA English DT Article C1 KYOTO UNIV,UJI RES CTR,YUKAWA INST THEORET PHYS,UJI,KYOTO 611,JAPAN. NATL LAB HIGH ENERGY PHYS,TSUKUBA,IBARAKI 305,JAPAN. RP SASAKI, M (reprint author), NASA,FERMILAB ASTROPHYS CTR,FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510, USA. OI Sasaki, Misao/0000-0001-5924-0664 NR 23 TC 16 Z9 16 U1 0 U2 0 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0001-7701 J9 GEN RELAT GRAVIT JI Gen. Relativ. Gravit. PD DEC PY 1990 VL 22 IS 12 BP 1351 EP 1366 DI 10.1007/BF00756835 PG 16 WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EK674 UT WOS:A1990EK67400002 ER PT J AU LOFGREN, G LANIER, AB AF LOFGREN, G LANIER, AB TI DYNAMIC CRYSTALLIZATION STUDY OF BARRED OLIVINE CHONDRULES SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID ORDINARY CHONDRITES; TEXTURES; LIQUIDS; ORIGIN; MELTS AB Chondrules, which comprise the bulk of most chondrites, formed very early in the solar system and understanding their formation will elucidate early nebular processes. Barred olivine (BO) chondrules make up approximately 10% of chondrules and because of their unique dendritic textures represent a restricted set of crystal growth conditions and, thus, formation conditions. BO textures have been replicated using dynamic crystallization techniques on olivine-rich chondrule starting compositions in an attempt to determine these formation conditions. One composition was modeled after the average BO chondrule composition in L-chondrites determined by WEISBERG (1987) in a survey of BO chondrules. Chondrule droplets are presumed to form by the melting of crystalline material. BO textures developed best if the crystalline precursor was melted slightly above to tens of degrees above the liquidus temperature eliminating all ready nuclei. Crystalline material (embryos) of subcritical nuclei size in the melts provide the nuclei when they reach critical nucleus size at degrees of supercooling which stabilize the plate dendritic crystal form of olivine. The plate dendrite is the basic crystal unit of the BO texture. Multiple-plate dendrites are the common texture in experimentally produced chondrules; the "classic," single-plate-dendrite BO chondrule has not been reproduced in the experiments. While the preferred BO composition of Weisberg does produce BO textures over a broader range of melting temperatures, any composition that has olivine on the liquidus for a significant temperature interval will develop BO texture over some range of melting temperatures. The range of possible melting temperatures depends on the range of compositions available that have olivine on liquidus. The low end of the range will be near 1500-degrees-C and the upper end near 1700-degrees-C. The range of cooling rates that produced BO textures in the compositions studied is 500 to 2300-degrees-C/h. C1 LOCKHEED ENGN & SCI CO,HOUSTON,TX 77058. RP LOFGREN, G (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,SN-2,HOUSTON,TX 77058, USA. NR 32 TC 49 Z9 49 U1 3 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD DEC PY 1990 VL 54 IS 12 BP 3537 EP 3551 DI 10.1016/0016-7037(90)90303-3 PG 15 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EQ638 UT WOS:A1990EQ63800020 ER PT J AU ZHANG, M VASYLIUNAS, VM SISCOE, GL LEPPING, RP NESS, NF AF ZHANG, M VASYLIUNAS, VM SISCOE, GL LEPPING, RP NESS, NF TI EVIDENCE FOR A DIURNALLY ROCKING PLASMA MANTLE AT NEPTUNE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGNETOSPHERE; FIELDS; MODEL AB Voyager's post-encounter trajectory at Neptune allows the directions of the magnetic field in the magnetosheath produced by the draping of the typical interplanetary field and by alignment with the magnetotail to be distinguished. Changes of the field from the draped to the magnetotail-aligned direction accompanied by decreases of plasma velocity, density, and temperature, observed at intervals of approximately a Neptunian day, are consistent with the assumption that Voyager repeatedly encountered a plasma mantle region extending well into the magnetosheath and modulated by the rotation of the planet's magnetic dipole. Other interpretations are either implausible or inconsistent with the observations. Previously reported periodic velocity decreases in the magnetosheath of Uranus can be interpreted in the same way. Extended plasma mantles may thus be a general property of planetary magnetospheres interacting with the magnetized solar wind. Analogous effects at Earth cannot yet be observed because of lack of suitable spacecraft missions, but their existence is suggested by theoretical arguments. C1 MIT,DEPT PHYS,CAMBRIDGE,MA 02139. NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. UNIV CALIF LOS ANGELES,DEPT ATMOSPHER SCI,LOS ANGELES,CA 90024. UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19761. MAX PLANCK INST AERON,W-3411 KATLENBURG-DUHM,GERMANY. RP ZHANG, M (reprint author), MIT,CTR SPACE RES,CAMBRIDGE,MA 02139, USA. NR 12 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 DEC PY 1990 VL 17 IS 13 BP 2285 EP 2288 DI 10.1029/GL017i013p02285 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EN701 UT WOS:A1990EN70100002 ER PT J AU DEMORE, WB AF DEMORE, WB TI EQUILIBRIUM-CONSTANT FOR THE REACTION CLO+O-2 REVERSIBLE CLO.O-2 SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article AB Photolysis of cl2/cl2o/o2 mixtures at 197 K has been used to place an upper limit of 4 X 10(-18) cm3 on the equilibrium constant for the c10 + o2 < -- > ClO.O2 reaction at the temperature. This value is three orders of magnitude below the current NASA recommendation [DeMore et al., 1990]. Estimating S(o) (ClO.O2) as 73 cal/mol-K, the bond energy for the complex is less than 7.7 kcal/mole. RP DEMORE, WB (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 6 TC 5 Z9 5 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 DEC PY 1990 VL 17 IS 13 BP 2353 EP 2355 DI 10.1029/GL017i013p02353 PG 3 WC Geosciences, Multidisciplinary SC Geology GA EN701 UT WOS:A1990EN70100019 ER PT J AU CUCINOTTA, FA HAJNAL, F WILSON, JW AF CUCINOTTA, FA HAJNAL, F WILSON, JW TI ENERGY DEPOSITION AT THE BONE-TISSUE INTERFACE FROM NUCLEAR FRAGMENTS PRODUCED BY HIGH-ENERGY NUCLEONS SO HEALTH PHYSICS LA English DT Article C1 US DOE, ENVIRONM MEASUREMENTS LAB, NEW YORK, NY 10014 USA. NASA, LANGLEY RES CTR, HAMPTON, VA 23665 USA. NR 14 TC 6 Z9 6 U1 0 U2 0 PU LIPPINCOTT WILLIAMS & WILKINS PI PHILADELPHIA PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA SN 0017-9078 EI 1538-5159 J9 HEALTH PHYS JI Health Phys. PD DEC PY 1990 VL 59 IS 6 BP 819 EP 825 DI 10.1097/00004032-199012000-00005 PG 7 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA EK935 UT WOS:A1990EK93500006 PM 2228609 ER PT J AU HALL, KW VALENTIN, JR PHILLIPS, JB AF HALL, KW VALENTIN, JR PHILLIPS, JB TI DEVELOPMENT OF A MODULATOR TO MEASURE WATER-VAPOR SELECTIVELY IN A GASEOUS MIXTURE SO HRC-JOURNAL OF HIGH RESOLUTION CHROMATOGRAPHY LA English DT Note DE GAS CHROMATOGRAPHY; SELECTIVE THERMAL MODULATION; HUMIDITY DETERMINATION; MARTIAN ATMOSPHERE ID MULTIPLEX GAS-CHROMATOGRAPHY C1 NASA,AMES RES CTR,SOLAR SYST EXPLORAT BRANCH,MOFFETT FIELD,CA 94035. SO ILLINOIS UNIV,DEPT CHEM & BIOCHEM,CARBONDALE,IL 62901. RP HALL, KW (reprint author), SAN JOSE STATE UNIV,DEPT PHYS,SAN JOSE,CA 95192, USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU DR ALFRED HUTHIG VERLAG GMBH PI HEIDELBERG 1 PA POSTFACH 102869, W-69018 HEIDELBERG 1, GERMANY SN 0935-6304 J9 HRC-J HIGH RES CHROM JI HRC-J. High Resolut. Chromatogr. PD DEC PY 1990 VL 13 IS 12 BP 835 EP 837 PG 3 WC Chemistry, Analytical SC Chemistry GA ER055 UT WOS:A1990ER05500007 ER PT J AU PLESCIA, JB AF PLESCIA, JB TI RECENT FLOOD LAVAS IN THE ELYSIUM REGION OF MARS SO ICARUS LA English DT Article ID GROUND ICE INTERACTIONS; MARTIAN CHANNELS; VOLCANISM; PLANITIA; EARTH; RADAR; AGE RP PLESCIA, JB (reprint author), CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,PASADENA,CA 91109, USA. NR 27 TC 94 Z9 94 U1 1 U2 4 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD DEC PY 1990 VL 88 IS 2 BP 465 EP 490 DI 10.1016/0019-1035(90)90095-Q PG 26 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EN944 UT WOS:A1990EN94400013 ER PT J AU SPENCER, JR BUIE, MW BJORAKER, GL AF SPENCER, JR BUIE, MW BJORAKER, GL TI SOLID METHANE ON TRITON AND PLUTO - 3-MU-M TO 4-MU-M SPECTROPHOTOMETRY SO ICARUS LA English DT Note ID CHARON MUTUAL EVENTS; SURFACE-COMPOSITION; BAND MODEL; ATMOSPHERE; SPECTRA; CIRCUMSTANCES; NITROGEN; NEPTUNE; FROST C1 SPACE TELESCOPE SCI INST,BALTIMORE,MD 21218. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP SPENCER, JR (reprint author), UNIV HAWAII,INST ASTRON,INFRARED TELESCOPE FACIL,2680 WOODLAWN DR,HONOLULU,HI 96822, USA. NR 34 TC 20 Z9 20 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD DEC PY 1990 VL 88 IS 2 BP 491 EP 496 DI 10.1016/0019-1035(90)90096-R PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EN944 UT WOS:A1990EN94400014 ER PT J AU LAI, R BHATTACHARYA, PK ALTEROVITZ, SA DOWNEY, AN CHOREY, C AF LAI, R BHATTACHARYA, PK ALTEROVITZ, SA DOWNEY, AN CHOREY, C TI LOW-TEMPERATURE MICROWAVE CHARACTERISTICS OF PSEUDOMORPHIC INXGA1-XAS/IN0.52AL0.48AS MODULATION-DOPED FIELD-EFFECT TRANSISTORS SO IEEE ELECTRON DEVICE LETTERS LA English DT Article C1 NASA,LEWIS RES CTR,SOLID STATE TECHNOL BRANCH,CLEVELAND,OH 44135. RP LAI, R (reprint author), UNIV MICHIGAN,DEPT ELECT ENGN & COMP SCI,ANN ARBOR,MI 48109, USA. NR 10 TC 9 Z9 9 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0741-3106 J9 IEEE ELECTR DEVICE L JI IEEE Electron Device Lett. PD DEC PY 1990 VL 11 IS 12 BP 564 EP 566 DI 10.1109/55.63041 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA EK305 UT WOS:A1990EK30500002 ER PT J AU CHU, AWC LONG, SA WILTON, DR AF CHU, AWC LONG, SA WILTON, DR TI THE RADIATION-PATTERN OF A MONOPOLE ANTENNA ATTACHED TO A CONDUCTING BOX SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Article AB A systematic investigation was undertaken to determine the radiation patterns of a monopole antenna mounted on a cubical conducting box over a ground plane. The effects of the location of the monopole and the electrical size of the box were noted as compared to similar patterns measured over a flat ground plane. Experimental results were also compared with numerically predicted values obtained from a method of moments patch code. C1 UNIV HOUSTON,CULLEN COLL ENGN,DEPT ELECT ENGN,HOUSTON,TX 77204. RP CHU, AWC (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,DIV TRACKING & COMMUN,ANTENNA SYST SECT,HOUSTON,TX 77058, USA. NR 4 TC 4 Z9 5 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD DEC PY 1990 VL 38 IS 12 BP 1907 EP 1912 DI 10.1109/8.60978 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EP390 UT WOS:A1990EP39000001 ER PT J AU WOLFF, PJ MOHAN, SN STIENON, FM BIERMAN, GJ AF WOLFF, PJ MOHAN, SN STIENON, FM BIERMAN, GJ TI COMPUTATION OF THE FACTORIZED ERROR COVARIANCE OF THE DIFFERENCE BETWEEN CORRELATED ESTIMATORS SO IEEE TRANSACTIONS ON AUTOMATIC CONTROL LA English DT Article C1 CALTECH,JET PROP LAB,MISS PROFILE & SEQUENCING SECT,PASADENA,CA 91109. CALTECH,JET PROP LAB,BENDIX FIELD ENGN,PASADENA,CA 91109. BIERMAN & ASSOCIATES,STUDIO CITY,CA 91604. RP WOLFF, PJ (reprint author), CALTECH,JET PROP LAB,NAVIGAT SYST SECT,PASADENA,CA 91109, USA. NR 10 TC 4 Z9 5 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9286 J9 IEEE T AUTOMAT CONTR JI IEEE Trans. Autom. Control PD DEC PY 1990 VL 35 IS 12 BP 1284 EP 1292 DI 10.1109/9.61003 PG 9 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA EH836 UT WOS:A1990EH83600002 ER PT J AU LESNY, G FORMAN, R AF LESNY, G FORMAN, R TI SURFACE STUDIES ON SCANDATE CATHODES AND SYNTHESIZED SCANDATES SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Article; Proceedings Paper CT 7TH TRI-SERVICE CATHODE WORKSHOP CY APR 03-05, 1990 CL NASA, LEWIS RES CTR, CLEVELAND, OH SP NASA HO NASA, LEWIS RES CTR C1 ANALEX CORP,FAIRVIEW PK,OH 44141. RP LESNY, G (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 10 TC 15 Z9 15 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD DEC PY 1990 VL 37 IS 12 BP 2595 EP 2604 DI 10.1109/16.64539 PN 2 PG 10 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA EK995 UT WOS:A1990EK99500009 ER PT J AU WILSON, JD LIMBURG, HC DAVIS, JA TAMMARU, I VASZARI, JP AF WILSON, JD LIMBURG, HC DAVIS, JA TAMMARU, I VASZARI, JP TI A HIGH-EFFICIENCY FERULELESS-COUPLED CAVITY TRAVELING-WAVE TUBE WITH PHASE-ADJUSTED TAPER SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Article C1 HUGHES AIRCRAFT CO,DIV ELECTRON DYNAM,TORRANCE,CA 90509. RP WILSON, JD (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 10 TC 8 Z9 8 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD DEC PY 1990 VL 37 IS 12 BP 2638 EP 2643 DI 10.1109/16.64546 PN 2 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA EK995 UT WOS:A1990EK99500017 ER PT J AU ZOUTENDYK, JA SMITH, LS EDMONDS, LD AF ZOUTENDYK, JA SMITH, LS EDMONDS, LD TI RESPONSE OF A DRAM TO SINGLE-ION TRACKS OF DIFFERENT HEAVY-ION SPECIES AND STOPPING POWERS SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 1990 IEEE ANNUAL CONF ON NUCLEAR AND SPACE RADIATION EFFECTS CY JUL 16-20, 1990 CL RENO, NV SP IEEE RP ZOUTENDYK, JA (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 6 TC 10 Z9 10 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 1844 EP 1848 DI 10.1109/23.101199 PN 1 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM492 UT WOS:A1990EM49200033 ER PT J AU BUEHLER, MG BLAES, BR AF BUEHLER, MG BLAES, BR TI ALPHA-PARTICLE SENSITIVE TEST SRAMS SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 1990 IEEE ANNUAL CONF ON NUCLEAR AND SPACE RADIATION EFFECTS CY JUL 16-20, 1990 CL RENO, NV SP IEEE RP BUEHLER, MG (reprint author), CALTECH,JET PROP LAB,MS 300-329,PASADENA,CA 91109, USA. NR 6 TC 9 Z9 10 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 1849 EP 1854 DI 10.1109/23.101200 PN 1 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM492 UT WOS:A1990EM49200034 ER PT J AU COSTANTINE, A HOWARD, JW BECKER, M BLOCK, RC SMITH, LS STAUBER, MC AF COSTANTINE, A HOWARD, JW BECKER, M BLOCK, RC SMITH, LS STAUBER, MC TI A NEW METHOD FOR USING CF-252 IN SEU TESTING SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 1990 IEEE ANNUAL CONF ON NUCLEAR AND SPACE RADIATION EFFECTS CY JUL 16-20, 1990 CL RENO, NV SP IEEE C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. GRUMMAN CORP RES CTR,BETHPAGE,NY 11714. RP COSTANTINE, A (reprint author), RENSSELAER POLYTECH INST,TROY,NY 12180, USA. NR 14 TC 5 Z9 5 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 1916 EP 1922 DI 10.1109/23.101209 PN 1 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM492 UT WOS:A1990EM49200043 ER PT J AU NEWBERRY, DM KAYE, DH SOLI, GA AF NEWBERRY, DM KAYE, DH SOLI, GA TI SINGLE EVENT INDUCED TRANSIENTS IN I/O DEVICES - A CHARACTERIZATION SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 1990 IEEE ANNUAL CONF ON NUCLEAR AND SPACE RADIATION EFFECTS CY JUL 16-20, 1990 CL RENO, NV SP IEEE C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP NEWBERRY, DM (reprint author), CONTROL DATA CORP,2300 E 88TH ST,BLOOMINGTON,MN 55425, USA. NR 2 TC 9 Z9 10 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 1974 EP 1980 DI 10.1109/23.101217 PN 1 PG 7 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM492 UT WOS:A1990EM49200051 ER PT J AU KUHARSKI, RA JONGEWARD, GA WILCOX, KG RANKIN, TV ROCHE, JC AF KUHARSKI, RA JONGEWARD, GA WILCOX, KG RANKIN, TV ROCHE, JC TI HIGH-VOLTAGE INTERACTIONS OF A SOUNDING ROCKET WITH THE AMBIENT AND SYSTEM-GENERATED ENVIRONMENTS SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article; Proceedings Paper CT 1990 IEEE ANNUAL CONF ON NUCLEAR AND SPACE RADIATION EFFECTS CY JUL 16-20, 1990 CL RENO, NV SP IEEE C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP KUHARSKI, RA (reprint author), S CUBED INC,SAN DIEGO,CA 92121, USA. NR 15 TC 2 Z9 2 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 2128 EP 2133 DI 10.1109/23.101239 PN 1 PG 6 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM492 UT WOS:A1990EM49200073 ER PT J AU IWANCZYK, JS WANG, YJ BRADLEY, JG ALBEE, AL SCHNEPPLE, WF AF IWANCZYK, JS WANG, YJ BRADLEY, JG ALBEE, AL SCHNEPPLE, WF TI ADVANCES IN THE DEVELOPMENT OF ENCAPSULANTS FOR MERCURIC IODIDE X-RAY-DETECTORS SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91125. RP IWANCZYK, JS (reprint author), XSIRIUS INC,4640 ADMIRALTY WAY,SUITE 214,MARINA DEL REY,CA 90292, USA. NR 8 TC 11 Z9 11 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9499 J9 IEEE T NUCL SCI JI IEEE Trans. Nucl. Sci. PD DEC PY 1990 VL 37 IS 6 BP 2214 EP 2218 DI 10.1109/TNS.1990.574217 PN 2 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA EM494 UT WOS:A1990EM49400014 ER PT J AU CUDDIHY, EF LAWTON, RA GAVIN, TR AF CUDDIHY, EF LAWTON, RA GAVIN, TR TI HEALING OF VOIDS IN THE ALUMINUM METALLIZATION OF INTEGRATED-CIRCUIT CHIPS SO IEEE TRANSACTIONS ON RELIABILITY LA English DT Article DE VOIDS; THERMAL TREATMENT; HEALING; ALUMINUM METALLIZATION AB A thermal treatment to heal voids in the aluminum metallization of integrated circuit (IC) chips has been discovered. The aluminum metallization is alloyed with nominally 1 wt.% of silicon. This discovery of serendipity arose from efforts to cause further growth of pre-existing voids in IC RAMs intended for long-term, unattended spacecraft applications. The experimental effort was intended to cause further void propagation for the purposes of establishing a time/temperature propagation relationship, but resulted instead in a healing of the voids. The thermal treatment consisted of heating IC chips with voids in the aluminum/silicon metallization to temperatures in excess of 200 C, followed by quick immersion into liquid nitrogen. This thermal treatment appears to be inconsistent with state-of-the-art theories which suggest that voids are directly and exclusively caused by stresses and strains associated with thermal expansion mismatches between the glass passivation, silicon substrate, and aluminum metallization. Such state-of-the-art theories lead to the anticipation that cooling of the parts below ambient temperatures should lead to further void growth, which did not happen with these RAMs. This article describes the thermal treatment, and advances a theory based on silicon solubility and migration in aluminum to explain both the formation and healing of voids in the aluminum metallization of IC chips. C1 CALTECH,JET PROP LAB,DIV HARDWARE ASSURANCE,PASADENA,CA 91109. RP CUDDIHY, EF (reprint author), CALTECH,JET PROP LAB,ELECTR PARTS FAILURE ANAL GRP,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 18 TC 2 Z9 2 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9529 J9 IEEE T RELIAB JI IEEE Trans. Reliab. PD DEC PY 1990 VL 39 IS 5 BP 564 EP 570 DI 10.1109/24.61312 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA EN932 UT WOS:A1990EN93200017 ER PT J AU BANKS, HT KOJIMA, F WINFREE, WP AF BANKS, HT KOJIMA, F WINFREE, WP TI BOUNDARY ESTIMATION PROBLEMS ARISING IN THERMAL TOMOGRAPHY SO INVERSE PROBLEMS LA English DT Article ID APPROXIMATION; DOMAIN AB Problems on the identification of two-dimensional spatial domains arising in the detection and characterization of structural flaws in materials are considered. For a thermal diffusion system with external boundary input, observations of the temperature on the surface are used in a output least-squares approach. Parameter estimation techniques based on the 'method of mappings' are discussed and approximation schemes are developed based on finite-element Galerkin approach. Theoretical convergence results for computational techniques are given and the results are applied to experimental data for the identification of flaws in thermal testing of materials. C1 NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665. NASA,LANGLEY RES CTR,DIV INSTRUMENT RES,HAMPTON,VA 23665. RP BANKS, HT (reprint author), UNIV SO CALIF,CTR APPL MATH SCI,LOS ANGELES,CA 90089, USA. NR 18 TC 44 Z9 46 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0266-5611 J9 INVERSE PROBL JI Inverse Probl. PD DEC PY 1990 VL 6 IS 6 BP 897 EP 921 DI 10.1088/0266-5611/6/6/003 PG 25 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA EQ227 UT WOS:A1990EQ22700003 ER PT J AU SOBIESZCZANSKISOBIESKI, J CHOPRA, I AF SOBIESZCZANSKISOBIESKI, J CHOPRA, I TI MULTIDISCIPLINARY OPTIMIZATION OF AERONAUTICAL SYSTEMS SO JOURNAL OF AIRCRAFT LA English DT Article RP SOBIESZCZANSKISOBIESKI, J (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 4 Z9 6 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD DEC PY 1990 VL 27 IS 12 BP 977 EP 978 DI 10.2514/3.56840 PG 2 WC Engineering, Aerospace SC Engineering GA FG084 UT WOS:A1990FG08400001 ER PT J AU SOBIESZCZANSKISOBIESKI, J AF SOBIESZCZANSKISOBIESKI, J TI SENSITIVITY ANALYSIS AND MULTIDISCIPLINARY OPTIMIZATION FOR AIRCRAFT DESIGN - RECENT ADVANCES AND RESULTS SO JOURNAL OF AIRCRAFT LA English DT Article AB Optimization by decomposition, complex system sensitivity analysis, and a rapid growth of disciplinary sensitivity analysis are some of the recent developments that hold promise of a quantum jump in the support engineers receive from computers in the quantitative aspects of design. Review of the salient points of these techniques is given and illustrated by examples from aircraft design viewed as a process that combines the best of human intellect and computer power to manipulate data. RP SOBIESZCZANSKISOBIESKI, J (reprint author), NASA,LANGLEY RES CTR,INTERDISCIPLINARY RES OFF,HAMPTON,VA 23665, USA. NR 0 TC 25 Z9 25 U1 3 U2 9 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD DEC PY 1990 VL 27 IS 12 BP 993 EP 1001 DI 10.2514/3.45973 PG 9 WC Engineering, Aerospace SC Engineering GA FG084 UT WOS:A1990FG08400003 ER PT J AU TAO, WK SIMPSON, J LANG, S MCCUMBER, M ADLER, R PENC, R AF TAO, WK SIMPSON, J LANG, S MCCUMBER, M ADLER, R PENC, R TI AN ALGORITHM TO ESTIMATE THE HEATING BUDGET FROM VERTICAL HYDROMETEOR PROFILES SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID MESOSCALE CONVECTIVE SYSTEM; TROPICAL CLOUD CLUSTERS; DOPPLER RADAR DATA; CUMULUS CLOUDS; SQUALL LINE; PRECIPITATION; RAINFALL; PARAMETERIZATION; EVAPORATION; SIMULATION AB A simple algorithm to estimate the latent heating of cloud systems from their vertical hydrometeor profiles is proposed. The derivation as well as the validation of the algorithm is based on output generated by a nonhydrostatic cloud model with parameterized microphysical processes. Mature and decaying stages of a GATE squall-type convective system have been tested. The algorithm-derived heating budget is in reasonable agreement with the budget predicted by the cloud model. The input to the proposed algorithm can be obtained from either a rain retrieval technique based on information from multichannel passive microwave signals or a kinematic cloud model based on information from Doppler radar wind fields and radar reflectivity patterns. Such an application would have significant implications for spaceborne remote sensing and the large-scale weather prediction data assimilation problem. C1 GEN SCI CORP,LAUREL,MD. RES & DATA SYST CORP,GREENBELT,MD. RP TAO, WK (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HYDROSPHER PROC LAB,CODE 973,GREENBELT,MD 20771, USA. NR 40 TC 66 Z9 66 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD DEC PY 1990 VL 29 IS 12 BP 1232 EP 1244 DI 10.1175/1520-0450(1990)029<1232:AATETH>2.0.CO;2 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA960 UT WOS:A1990FA96000004 ER PT J AU PRABHAKARA, C YOO, JM DALU, G FRASER, RS AF PRABHAKARA, C YOO, JM DALU, G FRASER, RS TI DEEP OPTICALLY THIN CIRRUS CLOUDS IN THE POLAR-REGIONS .1. INFRARED EXTINCTION CHARACTERISTICS SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID SAM-II; SPECTROSCOPY EXPERIMENT; STRATOSPHERIC CLOUDS; RADIATIVE TRANSFER; WATER; TEMPERATURE; SCATTERING; CONSTANTS; MODEL; ICE AB The spectral data obtained by the Infrared Interferometer Spectrometer (IRIS) flown on Nimbus 4 satellite in 1970 indicated the existence of optically thin ice clouds in the upper troposphere that probably extended into lower stratosphere, in the polar regions, during winter and early spring. The spectral features of these clouds differ somewhat from that of the optically thin cirrus clouds in the tropics. From theoretical simulation of the infrared spectra in the 8-25 mu-m region, we infer that these polar clouds have a vertical stratification in particle size, with larger particles (approximately 12-mu-m) in the bottom of the cloud and smaller ones (less-than-or-similar-to 1-mu-m) aloft. Radiative transfer calculations also suggest that the equivalent ice-water content of these polar clouds is of the order of 1 mg cm-2. RP PRABHAKARA, C (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 613,GREENBELT,MD 20771, USA. NR 31 TC 13 Z9 13 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD DEC PY 1990 VL 29 IS 12 BP 1313 EP 1329 DI 10.1175/1520-0450(1990)029<1313:DOTCCI>2.0.CO;2 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA960 UT WOS:A1990FA96000010 ER PT J AU SNYDER, PG WOOLLAM, JA ALTEROVITZ, SA JOHS, B AF SNYDER, PG WOOLLAM, JA ALTEROVITZ, SA JOHS, B TI MODELING ALXGA1-XAS OPTICAL-CONSTANTS AS FUNCTIONS OF COMPOSITION SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. JA WOOLLAM CO,LINCOLN,NE 68508. RP SNYDER, PG (reprint author), UNIV NEBRASKA,DEPT ELECT ENGN,LINCOLN,NE 68588, USA. NR 6 TC 81 Z9 81 U1 2 U2 3 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 DEC 1 PY 1990 VL 68 IS 11 BP 5925 EP 5926 DI 10.1063/1.346921 PG 2 WC Physics, Applied SC Physics GA EM120 UT WOS:A1990EM12000090 ER PT J AU DUDLEY, GA HARRIS, RT DUVOISIN, MR HATHER, BM BUCHANAN, P AF DUDLEY, GA HARRIS, RT DUVOISIN, MR HATHER, BM BUCHANAN, P TI EFFECT OF VOLUNTARY VS ARTIFICIAL ACTIVATION ON THE RELATIONSHIP OF MUSCLE TORQUE TO SPEED SO JOURNAL OF APPLIED PHYSIOLOGY LA English DT Article DE TORQUE-VELOCITY RELATIONSHIP; ELECTRICAL STIMULATION; ECCENTRIC; CONCENTRIC; MUSCLE ACTIVATION ID FORCE-VELOCITY RELATIONSHIP; SKELETAL-MUSCLE; LENGTHENING CONTRACTIONS; FIBER COMPOSITION; QUADRICEPS; PLANTAR; FLEXION; INJURY; SARCOMERE; STRETCH AB The speed-torque relationship of the right knee extensor muscle group was investigated in eight untrained subjects (28 +/- 2 yr old). Torque was measured at a specific knee angle during isokinetic concentric or eccentric actions at nine angular velocities (0.17-3.66 rad/s) and during isometric actions. Activation was by "maximal" voluntary effort or by transcutaneous tetanic electrical stimulation that induced an isometric torque equal to 60% (STIM 1) or 45% (STIM 2) of the voluntary isometric value. Torque increased (P < 0.05) to 1.4 times isometric as the speed of eccentric actions increased to 1.57 rad/s for STIM 1 and STIM 2. Thereafter, increases in eccentric speed did not further increase torque. Torque did not increase (P > 0.05) above isometric for voluntary eccentric actions. As the speed of concentric actions increased from 0.00 to 3.66 rad/s, torque decreased (P < 0.05) more (P < 0.05) for both STIM 1 and STIM 2 (two-thirds) than for voluntary activation (one-half). As a result of these responses, torque changed three times as much (P < 0.05) across speeds of concentric and eccentric actions with artificial (3.4-fold) than voluntary (1.1-fold) activation. The results indicate that with artificial activation the normalized speed-torque relationship of the knee extensors in situ is remarkably similar to that of isolated muscle. The relationship for voluntary activation, in contrast, suggests that the ability of the central nervous system to activate the knee extensors during maximal efforts depends on the speed and type of muscle action performed. C1 NASA,RES OFF,KENNEDY SPACE CTR,FL 32899. OHIO UNIV,DEPT ZOOL & BIOMED SCI,PHYSIOL & PHARMACOL SECT,ATHENS,OH 45701. RP DUDLEY, GA (reprint author), BIONET CORP,BIOMED & ENVIRONM LABS,MAIL CODE BIO-6,KENNEDY SPACE CTR,FL 32899, USA. NR 33 TC 113 Z9 114 U1 1 U2 11 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 8750-7587 J9 J APPL PHYSIOL JI J. Appl. Physiol. PD DEC PY 1990 VL 69 IS 6 BP 2215 EP 2221 PG 7 WC Physiology; Sport Sciences SC Physiology; Sport Sciences GA EQ391 UT WOS:A1990EQ39100042 PM 2077019 ER PT J AU FAIRFIELD, DH AF FAIRFIELD, DH TI RECENT ADVANCES IN MAGNETOSPHERIC SUBSTORM RESEARCH SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article; Proceedings Paper CT REPORTER REVIEW SYMP OF THE INTERNATIONAL ASSOC OF GEOMAGNETISM AND AERONOMY : GLOBAL MAGNETOSPHERIC DYNAMICS CY 1989 CL EXETER, ENGLAND SP INT ASSOC GEOMAGNETISM & AERON ID WESTWARD TRAVELING SURGE; SHEET BOUNDARY-LAYER; GENERAL MAGNETIC RECONNECTION; ENERGETIC ION BURSTS; CENTRAL PLASMA SHEET; EARTHS MAGNETOTAIL; TEARING INSTABILITY; GEOMAGNETIC TAIL; ELECTRIC-FIELDS; NUMERICAL SIMULATIONS AB More than two decades of magnetospheric exploration have led to a reasonably clear morphological picture of geomagnetic substorms, which is often summarized in terms of the near-Earth neutral line (NENL) model of substorms. Although this qualitative theory is quite comprehensive and explains a great many observations, it is hard pressed to explain both recent observations of consistently earthward flow within 19 R(E) and also the prompt onset of magnetic turbulence at 8 R(E) at the time of substorm onset. Other theories have recently been proposed which tend to be more quantitative, but which explain a more limited number of substorm observations. The challenge seems to be to understand the essential physics of these various quantitative theories and integrate them into a larger structure such as is provided by the near-Earth neutral line model. RP FAIRFIELD, DH (reprint author), NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20706, USA. NR 71 TC 4 Z9 4 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD DEC PY 1990 VL 52 IS 12 BP 1155 EP 1167 DI 10.1016/0021-9169(90)90084-Z PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FA409 UT WOS:A1990FA40900005 ER PT J AU BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H AF BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H TI THEORETICAL-STUDY OF THE HOMONUCLEAR TETRAMERS AND PENTAMERS OF THE GROUP-IB METALS (CU, AG, AND AU) SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article RP BAUSCHLICHER, CW (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 42 TC 94 Z9 95 U1 1 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 DEC 1 PY 1990 VL 93 IS 11 BP 8133 EP 8137 DI 10.1063/1.459343 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EL294 UT WOS:A1990EL29400064 ER PT J AU CHARLOCK, TP ROSE, FG BESS, TD SMITH, GL AF CHARLOCK, TP ROSE, FG BESS, TD SMITH, GL TI THE RELATIONSHIP OF EXTRATROPICAL OUTGOING LONGWAVE RADIATION TO MONTHLY GEOPOTENTIAL TELECONNECTION PATTERNS SO JOURNAL OF CLIMATE LA English DT Article AB The relationship between low frequency variations in extratropical fields of outgoing longwave radiation (OLR) and geopotential teleconnection patterns as determined by rotated principal components (RPC) analysis of the NMC 500-mb heights is investigated in the Northern Hemisphere. The monthly broadband OLR is obtained from the Nimbus-6 and Nimbus-7 Wide-Field-Of-View (WFOV) radiometer record. Each of the main 500-mb teleconnection patterns has a characteristic signal in the OLR field for the month in which the 500-mb pattern occurs. The OLR signals mark cloud and diabatic heating events that are associated with the teleconnection patterns. Our demonstration of correlation between extratropical monthly OLR and geopotential height, coupled with the expected tropospheric response to radiation on monthly time scales, stresses the importance of the radiation simulation in model studies of the low frequency variability of atmospheric circulation. The extratropical OLR does not appear to be a useful predictor for the 500-mb teleconnection patterns on a monthly time scale. RP CHARLOCK, TP (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,MAIL STOP 420,HAMPTON,VA 23665, USA. NR 0 TC 6 Z9 7 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD DEC PY 1990 VL 3 IS 12 BP 1390 EP 1399 DI 10.1175/1520-0442(1990)003<1390:TROEOL>2.0.CO;2 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC724 UT WOS:A1990FC72400007 ER PT J AU DHURIA, HL KYLE, HL AF DHURIA, HL KYLE, HL TI CLOUD TYPES AND THE TROPICAL EARTH RADIATION BUDGET SO JOURNAL OF CLIMATE LA English DT Article AB Nimbus-7 cloud and earth radiation budget data are compared in a study of the effects of clouds on the tropical radiation budget. The data consist of daily averages over fixed (500 km)2 target areas, and the months of July 1979 and January 1980 were chosen to show the effect of seasonal changes. Six climate regions, consisting of 14 to 24 target areas each, were picked for intensive analysis because they exemplify the range in the tropical cloud/net radiation interactions. The normal analysis was to consider net radiation as the independent variable and examine how cloud cover, cloud type, albedo and emitted radiation vary with the net radiation. Two recurring themes keep repeating on a local, regional, and zonal basis: the net radiation is strongly influenced by the average cloud type and amount present, but most net radiation values could be produced by several combinations of cloud types and amount. The regions of highest net radiation (greater than 125 W m-2) tend to have medium to heavy cloud cover. In these cases, thin medium altitude clouds predominate. Their cloud tops are normally too warm to be classified as cirrus by the Nimbus cloud algorithm. A common feature in the tropical oceans are large regions where the total regional cloud cover varies from 20% to 90%, but with little regional difference in the net radiation. The monsoon and rain areas are high net radiation regions. The deep convective storm centers tend to have low, often highly negative, net radiation, but these are surrounded by large areas of high net radiation covered by thin medium and high level clouds. Large regional differences in the net radiation caused by varying cloud cover and type do, however, occur over the tropical oceans. But the most noticeable difference is between continental and ocean regions. The net radiation is considerably higher over the oceans. The largest longitudinal variations in net radiation in July and January occur in high solar insolation regions somewhat poleward of the subsolar point. Over the oceans, net radiation maxima are associated with an average cloud cover of low albedo clouds. Some or most of these clouds may actually be high altitude cirrus clouds with emissivity less than one, although in the Nimbus-7 cloud cover dataset, most are identified as midaltitude clouds. The ocean net radiation minima are associated with bright low-altitude clouds. The largest differences, over 100 W m-2, are between the ocean maxima and the deep minima over the continental deserts. Over the deserts during the summer, however, cloud variations appear less important than regional variations in the surface albedo. C1 NASA,GODDARD SPACE FLIGHT CTR,CODE 936,GREENBELT,MD 20771. NR 0 TC 13 Z9 13 U1 0 U2 5 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD DEC PY 1990 VL 3 IS 12 BP 1409 EP 1434 DI 10.1175/1520-0442(1990)003<1409:CTATTE>2.0.CO;2 PG 26 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC724 UT WOS:A1990FC72400009 ER PT J AU MAHONEY, JB OLSEN, P COHN, M AF MAHONEY, JB OLSEN, P COHN, M TI BLOOMS OF A DINOFLAGELLATE GYRODINIUM CF AUREOLUM IN NEW-JERSEY COASTAL WATERS AND THEIR OCCURRENCE AND EFFECTS WORLDWIDE SO JOURNAL OF COASTAL RESEARCH LA English DT Article RP MAHONEY, JB (reprint author), NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,SANDY HOOK LAB,HIGHLANDS,NJ 07732, USA. NR 0 TC 15 Z9 15 U1 0 U2 0 PU COASTAL EDUCATION & RESEARCH FOUNDATION PI LAWRENCE PA 810 EAST 10TH STREET, LAWRENCE, KS 66044 SN 0749-0208 J9 J COASTAL RES JI J. Coast. Res. PD WIN PY 1990 VL 6 IS 1 BP 121 EP 135 PG 15 WC Environmental Sciences; Geography, Physical; Geosciences, Multidisciplinary SC Environmental Sciences & Ecology; Physical Geography; Geology GA CL450 UT WOS:A1990CL45000010 ER PT J AU ROTEM, A AF ROTEM, A TI TENSILE AND COMPRESSIVE FAILURE MODES OF LAMINATED COMPOSITES LOADED BY FATIGUE WITH DIFFERENT MEAN STRESS SO JOURNAL OF COMPOSITES TECHNOLOGY & RESEARCH LA English DT Article DE FATIGUE; LAMINATES; FAILURE MODES; MEAN STRESS AB Laminated composite materials tend to fail differently under tensile or compressive load. Under tension, the material accumulates cracks and fiber fractures, while under compression, the material delaminates and buckles. Tensile-compressive fatigue may cause either of these failure modes depending on the specific damage occurring in the laminate. This damage depends on the stress ratio of the fatigue loading. Analysis of the fatigue behavior of the composite laminate under tension-tension, compression-compression, and tension-compression had led to the development of a fatigue envelope presentation of the failure behavior. This envelope indicates the specific failure mode for any stress ratio and number of loading cycles. The construction of the fatigue envelope is based on the applied stress-cycles to failure (S-N) curves of both tensile-tensile and compressive-compressive fatigue. Test results are presented to verify the theoretical analysis. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 8 TC 4 Z9 4 U1 1 U2 3 PU AMER SOC TESTING MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DR, W CONSHOHOCKEN, PA 19428-2959 SN 0884-6804 J9 J COMPOS TECH RES JI J. Compos. Technol. Res. PD WIN PY 1990 VL 12 IS 4 BP 201 EP 208 PG 8 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA EQ521 UT WOS:A1990EQ52100001 ER PT J AU WHANG, YC BURLAGA, LF AF WHANG, YC BURLAGA, LF TI SIMULATION OF PERIOD DOUBLING OF RECURRENT SOLAR-WIND STRUCTURES SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP WHANG, YC (reprint author), CATHOLIC UNIV AMER,DEPT MECH ENGN,WASHINGTON,DC 20064, USA. NR 21 TC 10 Z9 10 U1 1 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20663 EP 20671 DI 10.1029/JA095iA12p20663 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000002 ER PT J AU MATTHAEUS, WH GOLDSTEIN, ML ROBERTS, DA AF MATTHAEUS, WH GOLDSTEIN, ML ROBERTS, DA TI EVIDENCE FOR THE PRESENCE OF QUASI-2-DIMENSIONAL NEARLY INCOMPRESSIBLE FLUCTUATIONS IN THE SOLAR-WIND SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP MATTHAEUS, WH (reprint author), UNIV DELAWARE,BARTOL RES INST,NEWARK,DE 19711, USA. RI Roberts, Dana/D-4625-2012; Goldstein, Melvyn/B-1724-2008 NR 66 TC 441 Z9 445 U1 2 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20673 EP 20683 DI 10.1029/JA095iA12p20673 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000003 ER PT J AU ANDRE, M CREW, GB PETERSON, WK PERSOON, AM POLLOCK, CJ ENGEBRETSON, MJ AF ANDRE, M CREW, GB PETERSON, WK PERSOON, AM POLLOCK, CJ ENGEBRETSON, MJ TI ION HEATING BY BROAD-BAND LOW-FREQUENCY WAVES IN THE CUSP CLEFT SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. LOCKHEED PALO ALTO RES LABS,PALO ALTO,CA 94304. UNIV IOWA,DEPT PHYS & ASTRON,IOWA CITY,IA 52242. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. AUGSBURG COLL,MINNEAPOLIS,MN. RP ANDRE, M (reprint author), UMEA UNIV,SWEDISH INST SPACE PHYS,S-90187 UMEA,SWEDEN. RI Peterson, WK/A-8706-2009 OI Peterson, WK/0000-0002-1513-6096 NR 60 TC 88 Z9 88 U1 1 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20809 EP 20823 DI 10.1029/JA095iA12p20809 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000014 ER PT J AU PARANICAS, CP CHENG, AF MAUK, BH KRIMIGIS, SM ARMSTRONG, TP AF PARANICAS, CP CHENG, AF MAUK, BH KRIMIGIS, SM ARMSTRONG, TP TI ION PHASE-SPACE DENSITIES IN THE JOVIAN MAGNETOSPHERE SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 JOHNS HOPKINS UNIV,APPL PHYS LAB,LAUREL,MD 20707. NASA,WASHINGTON,DC 20546. RI Paranicas, Christopher/B-1470-2016; Mauk, Barry/E-8420-2017 OI Paranicas, Christopher/0000-0002-4391-8255; Mauk, Barry/0000-0001-9789-3797 NR 16 TC 5 Z9 5 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20833 EP 20838 DI 10.1029/JA095iA12p20833 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000016 ER PT J AU DELCOURT, DC SAUVAUD, JA MOORE, TE AF DELCOURT, DC SAUVAUD, JA MOORE, TE TI CLEFT CONTRIBUTION TO RING CURRENT FORMATION SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 CNRS,CTR ETUD SPATIALE RAYONNEMENTS,F-31055 TOULOUSE,FRANCE. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. RP DELCOURT, DC (reprint author), EUROPEAN SPACE AGCY,EUROPEAN SPACE RES & TECHNOL CTR,2200 AG NOORDWIJK,NETHERLANDS. RI Moore, Thomas/D-4675-2012 OI Moore, Thomas/0000-0002-3150-1137 NR 37 TC 28 Z9 28 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20937 EP 20943 DI 10.1029/JA095iA12p20937 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000025 ER PT J AU CORONITI, FV GREENSTADT, EW TSURUTANI, BT SMITH, EJ ZWICKL, RD GOSLING, JT AF CORONITI, FV GREENSTADT, EW TSURUTANI, BT SMITH, EJ ZWICKL, RD GOSLING, JT TI PLASMA-WAVES IN THE DISTANT GEOMAGNETIC TAIL - ISEE-3 SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NOAA,BOULDER,CO 80303. CALTECH,JET PROP LAB,PASADENA,CA 91109. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545. RP CORONITI, FV (reprint author), TRW SEMICOND,SPACE & TECHNOL GRP,LAWNDALE,CA 90260, USA. NR 26 TC 11 Z9 11 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 20977 EP 20995 DI 10.1029/JA095iA12p20977 PG 19 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000029 ER PT J AU MILLER, NJ BRACE, LH SPENCER, NW CARIGNAN, GR AF MILLER, NJ BRACE, LH SPENCER, NW CARIGNAN, GR TI DE-2 OBSERVATIONS OF DISTURBANCES IN THE UPPER-ATMOSPHERE DURING A GEOMAGNETIC STORM SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV RES FDN,GREENBELT,MD 20771. UNIV MICHIGAN,SPACE PHYS RES LAB,ANN ARBOR,MI 48109. RP MILLER, NJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHER LAB,GREENBELT,MD 20771, USA. NR 41 TC 17 Z9 17 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 21017 EP 21031 DI 10.1029/JA095iA12p21017 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000032 ER PT J AU TORR, MR TORR, DG RICHARDS, PG YUNG, SP AF TORR, MR TORR, DG RICHARDS, PG YUNG, SP TI MIDLATITUDE AND LOW-LATITUDE MODEL OF THERMOSPHERIC EMISSIONS .1. O+(2P) 7320 A AND N2 (2P) 3371 A SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 UNIV ALABAMA,HUNTSVILLE,AL 35899. BOEING CO,HUNTSVILLE,AL. RP TORR, MR (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812, USA. NR 77 TC 119 Z9 119 U1 0 U2 6 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD DEC 1 PY 1990 VL 95 IS A12 BP 21147 EP 21168 DI 10.1029/JA095iA12p21147 PG 22 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM180 UT WOS:A1990EM18000042 ER PT J AU OWE, M VANDEGRIEND, AA AF OWE, M VANDEGRIEND, AA TI DAILY SURFACE MOISTURE MODEL FOR LARGE AREA SEMIARID LAND APPLICATION WITH LIMITED CLIMATE DATA SO JOURNAL OF HYDROLOGY LA English DT Article ID EVAPOTRANSPIRATION; HEAT AB Evapotranspiration and surface soil moisture are seldom monitored on a routine basis like other climatic parameters, and consequently must be modelled from whatever data one may have available. A simple daily model is presented, which uses a modified Priestley-Taylor concept, whereby the alpha term is dynamic, and dependent on the available surface moisture. The relationship between alpha and the surface moisture is a result of the drying character of the soil, and very much a function of whether the surface is bare or vegetation-covered. Also, the soil heat flux is shown to be an important parameter which should not be neglected, and may also be estimated from the surface moisture. C1 FREE UNIV AMSTERDAM,INST EARTH SCI,1007 MC AMSTERDAM,NETHERLANDS. RP OWE, M (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HYDROLOG SCI BRANCH,CODE 974,GREENBELT,MD 20771, USA. NR 12 TC 34 Z9 35 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-1694 J9 J HYDROL JI J. Hydrol. PD DEC PY 1990 VL 121 IS 1-4 BP 119 EP 132 DI 10.1016/0022-1694(90)90228-P PG 14 WC Engineering, Civil; Geosciences, Multidisciplinary; Water Resources SC Engineering; Geology; Water Resources GA ET822 UT WOS:A1990ET82200008 ER PT J AU WHITTENBERGER, JD ARZT, E LUTON, MJ AF WHITTENBERGER, JD ARZT, E LUTON, MJ TI 1300-K COMPRESSIVE PROPERTIES OF A REACTION MILLED NIAL-ALN COMPOSITE SO JOURNAL OF MATERIALS RESEARCH LA English DT Article C1 MAX PLANCK INST MET RES,W-7000 STUTTGART 80,GERMANY. EXXON RES & ENGN CO,ANNANDALE,NJ 08801. RP WHITTENBERGER, JD (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. RI Arzt, Eduard/B-5282-2008 NR 21 TC 38 Z9 41 U1 0 U2 2 PU MATERIALS RESEARCH SOCIETY PI PITTSBURGH PA 9800 MC KNIGHT ROAD SUITE 327, PITTSBURGH, PA 15237 SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD DEC PY 1990 VL 5 IS 12 BP 2819 EP 2827 PG 9 WC Materials Science, Multidisciplinary SC Materials Science GA EN070 UT WOS:A1990EN07000012 ER PT J AU NING, XJ PIROUZ, P LAGERLOF, KPD DICARLO, J AF NING, XJ PIROUZ, P LAGERLOF, KPD DICARLO, J TI THE STRUCTURE OF CARBON IN CHEMICALLY VAPOR-DEPOSITED SIC MONOFILAMENTS SO JOURNAL OF MATERIALS RESEARCH LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP NING, XJ (reprint author), CASE WESTERN RESERVE UNIV,DEPT MAT SCI & ENGN,CLEVELAND,OH 44106, USA. RI Pirouz, Pirouz/B-8533-2009 NR 14 TC 70 Z9 71 U1 0 U2 1 PU MATERIALS RESEARCH SOCIETY PI PITTSBURGH PA 9800 MC KNIGHT ROAD SUITE 327, PITTSBURGH, PA 15237 SN 0884-2914 J9 J MATER RES JI J. Mater. Res. PD DEC PY 1990 VL 5 IS 12 BP 2865 EP 2876 DI 10.1557/JMR.1990.2865 PG 12 WC Materials Science, Multidisciplinary SC Materials Science GA EN070 UT WOS:A1990EN07000018 ER PT J AU BHAT, BT WANG, TG AF BHAT, BT WANG, TG TI A COMPARISON OF MECHANICAL-PROPERTIES OF SOME FOAMS AND HONEYCOMBS SO JOURNAL OF MATERIALS SCIENCE LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 5 TC 15 Z9 15 U1 1 U2 1 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 DEC PY 1990 VL 25 IS 12 BP 5157 EP 5162 DI 10.1007/BF00580144 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA EL992 UT WOS:A1990EL99200035 ER PT J AU MILLER, DP AF MILLER, DP TI PRACTICAL PLANNING - WILKINS,DE SO JOURNAL OF MATHEMATICAL PSYCHOLOGY LA English DT Book Review RP MILLER, DP (reprint author), CALTECH,JET PROP LAB,MAIL STOP 301-440,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 1 TC 1 Z9 1 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2496 J9 J MATH PSYCHOL JI J. Math. Psychol. PD DEC PY 1990 VL 34 IS 4 BP 489 EP 498 DI 10.1016/0022-2496(90)90028-8 PG 10 WC Mathematics, Interdisciplinary Applications; Social Sciences, Mathematical Methods; Psychology, Mathematical SC Mathematics; Mathematical Methods In Social Sciences; Psychology GA EM572 UT WOS:A1990EM57200010 ER PT J AU DANGNHU, M ZANDER, R GOLDMAN, A RINSLAND, CP AF DANGNHU, M ZANDER, R GOLDMAN, A RINSLAND, CP TI IDENTIFICATION OF MAGNETIC DIPOLE INFRARED TRANSITIONS OF THE FUNDAMENTAL-BAND OF OXYGEN SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article C1 UNIV LIEGE,INST ASTROPHYS,B-4200 COINTE OUGREE,BELGIUM. UNIV DENVER,DEPT PHYS,DENVER,CO 80208. NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665. RP DANGNHU, M (reprint author), UNIV PARIS 11,CNRS,INFRAROUGE LAB,BATIMENT 350,F-91405 ORSAY,FRANCE. NR 14 TC 8 Z9 8 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD DEC PY 1990 VL 144 IS 2 BP 366 EP 373 DI 10.1016/0022-2852(90)90223-D PG 8 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EL419 UT WOS:A1990EL41900012 ER PT J AU MCINROY, JE SARIDIS, GN AF MCINROY, JE SARIDIS, GN TI ACCELERATION AND TORQUE FEEDBACK FOR ROBOTIC CONTROL - EXPERIMENTAL RESULTS SO JOURNAL OF ROBOTIC SYSTEMS LA English DT Article RP MCINROY, JE (reprint author), RENSSELAER POLYTECH INST,NASA,CIRSSE,TROY,NY 12180, USA. NR 6 TC 15 Z9 15 U1 0 U2 0 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0741-2223 J9 J ROBOTIC SYST JI J. Robot. Syst. PD DEC PY 1990 VL 7 IS 6 BP 813 EP 832 DI 10.1002/rob.4620070603 PG 20 WC Robotics SC Robotics GA EJ522 UT WOS:A1990EJ52200002 ER PT J AU SERAJI, H COLBAUGH, R AF SERAJI, H COLBAUGH, R TI IMPROVED CONFIGURATION CONTROL FOR REDUNDANT ROBOTS SO JOURNAL OF ROBOTIC SYSTEMS LA English DT Article C1 NEW MEXICO STATE UNIV,DEPT MECH ENGN,LAS CRUCES,NM 88001. RP SERAJI, H (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 32 TC 74 Z9 76 U1 0 U2 3 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0741-2223 J9 J ROBOTIC SYST JI J. Robot. Syst. PD DEC PY 1990 VL 7 IS 6 BP 897 EP 928 DI 10.1002/rob.4620070607 PG 32 WC Robotics SC Robotics GA EJ522 UT WOS:A1990EJ52200006 ER PT J AU GENERAZAIO, ER ROTH, DJ BAAKLINI, GY AF GENERAZAIO, ER ROTH, DJ BAAKLINI, GY TI ACOUSTICAL IMAGING OF DEFECTS IN CERAMICS SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Note RP GENERAZAIO, ER (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 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 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD DEC PY 1990 VL 88 IS 6 BP 2897 EP 2897 PG 1 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA EL603 UT WOS:A1990EL60300045 ER PT J AU RORVIG, ME AF RORVIG, ME TI THE SIMPLE SCALABILITY OF DOCUMENTS SO JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE LA English DT Article RP RORVIG, ME (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 26 TC 7 Z9 7 U1 2 U2 2 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0002-8231 J9 J AM SOC INFORM SCI JI J. Am. Soc. Inf. Sci. PD DEC PY 1990 VL 41 IS 8 BP 590 EP 598 DI 10.1002/(SICI)1097-4571(199012)41:8<590::AID-ASI5>3.0.CO;2-T PG 9 WC Computer Science, Information Systems; Information Science & Library Science SC Computer Science; Information Science & Library Science GA EJ637 UT WOS:A1990EJ63700005 ER PT J AU NAGASUBRAMANIAN, G DISTEFANO, S AF NAGASUBRAMANIAN, G DISTEFANO, S TI 12-CROWN-4 ETHER-ASSISTED ENHANCEMENT OF IONIC-CONDUCTIVITY AND INTERFACIAL KINETICS IN POLYETHYLENE OXIDE ELECTROLYTES SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article RP NAGASUBRAMANIAN, G (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 24 TC 35 Z9 39 U1 0 U2 6 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534 SN 0013-4651 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PD DEC PY 1990 VL 137 IS 12 BP 3830 EP 3835 DI 10.1149/1.2086309 PG 6 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA EL594 UT WOS:A1990EL59400021 ER PT J AU STANG, DB SALEM, JA GENERAZIO, ER AF STANG, DB SALEM, JA GENERAZIO, ER TI ULTRASONIC-IMAGING OF TEXTURED ALUMINA SO MATERIALS EVALUATION LA English DT Article RP STANG, DB (reprint author), NASA,LEWIS RES CTR GRP,SVERDRUP TECHNOL INC,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER SOC NON-DESTRUCTIVE TEST PI COLUMBUS PA 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 SN 0025-5327 J9 MATER EVAL JI Mater. Eval. PD DEC PY 1990 VL 48 IS 12 BP 1478 EP 1482 PG 5 WC Materials Science, Characterization & Testing SC Materials Science GA EL855 UT WOS:A1990EL85500008 ER PT J AU JACKSON, AS BLAIR, SN MAHAR, MT WIER, LT ROSS, RM STUTEVILLE, JE AF JACKSON, AS BLAIR, SN MAHAR, MT WIER, LT ROSS, RM STUTEVILLE, JE TI PREDICTION OF FUNCTIONAL AEROBIC CAPACITY WITHOUT EXERCISE TESTING SO MEDICINE AND SCIENCE IN SPORTS AND EXERCISE LA English DT Note C1 NASA,LYNDON B JOHNSON SPACE CTR,CARDIOPULM LAB,HOUSTON,TX 77058. RP JACKSON, AS (reprint author), UNIV HOUSTON,DEPT HLTH & HUMAN PERFORMANCE,HOUSTON,TX 77044, USA. RI Loureiro, Nuno/I-6400-2012 OI Loureiro, Nuno/0000-0002-1166-3219 NR 35 TC 275 Z9 286 U1 4 U2 19 PU WILLIAMS & WILKINS PI BALTIMORE PA 351 WEST CAMDEN ST, BALTIMORE, MD 21201-2436 SN 0195-9131 J9 MED SCI SPORT EXER JI Med. Sci. Sports Exerc. PD DEC PY 1990 VL 22 IS 6 BP 863 EP 870 PG 8 WC Sport Sciences SC Sport Sciences GA EM523 UT WOS:A1990EM52300021 PM 2287267 ER PT J AU WORTHEM, DW ROBERTSON, IM LECKIE, FA SOCIE, DF ALTSTETTER, CJ AF WORTHEM, DW ROBERTSON, IM LECKIE, FA SOCIE, DF ALTSTETTER, CJ TI INHOMOGENEOUS DEFORMATION IN INCONEL 718 DURING MONOTONIC AND CYCLIC LOADINGS SO METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID CRACK-GROWTH-BEHAVIOR; NICKEL-BASE ALLOYS; FATIGUE BEHAVIOR; CREEP AB The deformation microstructures produced by room-temperature monotonic tensile and uniaxial low-cycle fatigue tests in aged (precipitate-hardened) INCONEL 718 were examined by transmission electron microscopy (TEM). Regularly spaced arrays of deformation bands on {111} slip planes were observed. Under monotonic loading, the dislocation structure within a deformation band formed an inverse pileup at a grain boundary, indicating that the boundary was the probable dislocation source. Under fatigue loading, the bands contained a high density of dislocations in a complex arrangement, which was attained after relatively few cycles. Samples of homogenized (precipitate-free) material were deformed monotonically in tension for comparison with the aged material. Early in the deformation, there was only one deformation band per grain and little evidence of work hardening; that is, there was a region of constant flow stress. With increased deformation, work hardening began, more bands nucleated, and their spacing became similar to that in the aged material. This result demonstrates that the degree of coarseness of inhomogeneous deformation in this material was not necessarily a result of a softening process within the bands because of precipitate shearing, but rather, it was primarily a function of the amount of work hardening within the bands. The regularity of the bands and the dislocation structure can be rationalized in terms of a periodic resistance to glide of the dislocations due to the presence of the precipitates and a distribution of dislocation sources along the grain boundaries. C1 UNIV ILLINOIS,DEPT MAT SCI & ENGN,URBANA,IL 61801. UNIV ILLINOIS,DEPT THEORET & APPL MECH,URBANA,IL 61801. UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801. UNIV CALIF SANTA BARBARA,DEPT MECH ENGN,SANTA BARBARA,CA 93106. RP WORTHEM, DW (reprint author), SVERDRUP TECHNOL INC,NASA LEWIS RES CTR GRP,CLEVELAND,OH 44135, USA. NR 16 TC 31 Z9 31 U1 1 U2 13 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 0360-2133 J9 METALL TRANS A PD DEC PY 1990 VL 21 IS 12 BP 3215 EP 3220 DI 10.1007/BF02647316 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA ER608 UT WOS:A1990ER60800016 ER PT J AU GOODING, JL AGGREY, KE MUENOW, DW AF GOODING, JL AGGREY, KE MUENOW, DW TI VOLATILE COMPOUNDS IN SHERGOTTITE AND NAKHLITE METEORITES SO METEORITICS LA English DT Article ID WEATHERING PRODUCTS; OXIDIZED SULFUR; SNC METEORITES; CARBONATE AB Vacuum pyrolysis and quadrupole mass spectrometry were used to measure evolved-gas profiles and total concentrations of H2O, CO2, CO, SO2, S2, H2S, HCl, Cl, and hydrocarbons in both exterior and interior samples of shergottites (ALHA77005, EETA79001, and Shergotty), a nakhlite (Nakhla), and eucrites (ALHA81001, EETA79004, and Pasamonte). Eucrites were analyzed as control samples to monitor effects of terrestrial weathering and contamination, relative to properties sought for the shergottite-nakhlite parent body. In contrast with eucrites, shergottites and Nakhla contain large proportions of their sulfur as oxidized sulfur compounds. Sulfate occurs in all shergottie and Nakhla samples and carbonate was confirmed in EETA79001 and Nakhla. Carbonate and sulfate abundances are inversely correlated but total chlorine abundance varies directly with fractional sulfate abundance. Most of the volatile compounds seem to be anhydrous, based on low bulk water contents in the meteorites (< 0.1% H2O), although Nakhla might contain significant water that is chemically associated with chlorine. Traces of saturated and unsaturated hydrocarbons in some samples are most likely terrestrial contaminants. The indigenous volatile compounds indicate that the shergottite-nakhlite parent body was highly oxidizing and supported aqueous geochemistry during at least part of its history. C1 RAMAPO COLL,SCH THEORET & APPL SCI,MAHWAH,NJ 07430. UNIV HAWAII,DEPT CHEM,HONOLULU,HI 96822. UNIV HAWAII,HAWAII INST GEOPHYS,HONOLULU,HI 96822. RP GOODING, JL (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,PLANETARY SCI BRANCH,HOUSTON,TX 77058, USA. NR 24 TC 24 Z9 24 U1 0 U2 6 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD DEC PY 1990 VL 25 IS 4 BP 281 EP 289 PG 9 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300006 ER PT J AU DEHART, JM LOFGREN, GE AF DEHART, JM LOFGREN, GE TI DYNAMIC CRYSTALLIZATION EXPERIMENTS AND CATHODOLUMINESCENCE STUDIES OF TYPE-I CHONDRULE COMPOSITIONS SO METEORITICS LA English DT Meeting Abstract C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 5 TC 0 Z9 0 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 DEC PY 1990 VL 25 IS 4 BP 356 EP 356 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300041 ER PT J AU DICKINSON, TL LOFGREN, GE MCKAY, GA AF DICKINSON, TL LOFGREN, GE MCKAY, GA TI SULFIDE FRACTIONATION AND THE ORIGIN OF THE NEGATIVE EU ANOMALY IN AUBRITES SO METEORITICS LA English DT Meeting Abstract ID ENSTATITE CHONDRITES C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 7 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 DEC PY 1990 VL 25 IS 4 BP 358 EP 358 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300045 ER PT J AU GOODING, JL AF GOODING, JL TI DIFFERENTIAL SCANNING CALORIMETRY (DSC) OF METEORITES - OVERVIEW OF POSSIBLE APPLICATIONS SO METEORITICS LA English DT Meeting Abstract C1 NASA,LYNDON B JOHNSON SPACE CTR,PLANETARY SCI BRANCH SN21,HOUSTON,TX 77058. NR 4 TC 0 Z9 0 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 DEC PY 1990 VL 25 IS 4 BP 367 EP 367 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300067 ER PT J AU HARPER, CL NYQUIST, LE SHIH, CY WIESMANN, H AF HARPER, CL NYQUIST, LE SHIH, CY WIESMANN, H TI CORRELATED ZR-96-TI-50, TI-49, TI-47 ANOMALIES IN ALLENDE CAI - A NEW CONSTRAINT ON THE ORIGIN OF THE NEUTRON-RICH IRON PEAK E-PROCESS ANOMALY SUITE SO METEORITICS LA English DT Meeting Abstract ID NUCLEOSYNTHESIS C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 9 TC 2 Z9 2 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 DEC PY 1990 VL 25 IS 4 BP 369 EP 369 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300073 ER PT J AU JUREWICZ, AJG MITTLEFEHLDT, DW JONES, JH AF JUREWICZ, AJG MITTLEFEHLDT, DW JONES, JH TI ANGRITIC AND EUCRITIC MAGMAS AS DIRECT PARTIAL MELTS OF CV CHONDRITES SO METEORITICS LA English DT Meeting Abstract C1 LOCKHEED ESC,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 7 TC 0 Z9 0 U1 2 U2 2 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD DEC PY 1990 VL 25 IS 4 BP 374 EP 374 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300085 ER PT J AU KARLSSON, HR SOCKI, RA GIBSON, EK BALAFAS, JS AF KARLSSON, HR SOCKI, RA GIBSON, EK BALAFAS, JS TI STABLE ISOTOPIC COMPOSITIONS OF CARBONATES IN ANTARCTIC ORDINARY CHONDRITES - INDICATORS OF TERRESTRIAL WEATHERING SO METEORITICS LA English DT Meeting Abstract C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. LOCKHEED ESC,HOUSTON,TX 77058. LUNAR & PLANETARY INST,HOUSTON,TX 77058. NR 4 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 DEC PY 1990 VL 25 IS 4 BP 375 EP 376 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300088 ER PT J AU LINDSTROM, MM AF LINDSTROM, MM TI LUNAR METEORITES - MORE QUESTIONS THAN ANSWERS SO METEORITICS LA English DT Meeting Abstract C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. 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 DEC PY 1990 VL 25 IS 4 BP 380 EP 380 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300100 ER PT J AU NICHOLS, RH OLINGER, CT HOHENBERG, CM NUTH, JA AF NICHOLS, RH OLINGER, CT HOHENBERG, CM NUTH, JA TI TRAPPING OF NOBLE-GASES IN SILICATE SMOKES SO METEORITICS LA English DT Meeting Abstract C1 WASHINGTON UNIV,MCDONNELL CTR SPACE SCI,DEPT PHYS,ST LOUIS,MO 63130. NASA,GODDARD SPACE FLIGHT CTR,ASTROCHEM BRANCH,GREENBELT,MD 20771. 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 DEC PY 1990 VL 25 IS 4 BP 391 EP 392 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300129 ER PT J AU RAO, MN GARRISON, DH BOGARD, DD AF RAO, MN GARRISON, DH BOGARD, DD TI ELEMENTAL AND ISOTOPIC COMPOSITION OF SOLAR-FLARE NOBLE-GASES IN KAPOETA - IMPLICATIONS FOR CHARGED-PARTICLE ACCELERATION FROM THE SUN SO METEORITICS LA English DT Meeting Abstract C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. PHY RES LAB,AHMEDABAD,INDIA. 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 DEC PY 1990 VL 25 IS 4 BP 400 EP 400 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300149 ER PT J AU SCHAEFER, MW DARIA, DM EVANS, CS GARVIN, JB SCHNETZLER, CC SALISBURY, JW AF SCHAEFER, MW DARIA, DM EVANS, CS GARVIN, JB SCHNETZLER, CC SALISBURY, JW TI THERMAL INFRARED LABORATORY AND FIELD SPECTROSCOPY OF IMPACT EJECTA AT METEOR CRATER, ARIZONA SO METEORITICS LA English DT Meeting Abstract C1 UNIV MARYLAND,COLLEGE PK,MD 20742. NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,GREENBELT,MD 20771. JOHNS HOPKINS UNIV,BALTIMORE,MD 21218. 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 DEC PY 1990 VL 25 IS 4 BP 405 EP 405 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300163 ER PT J AU SHARPTON, VL SCHURAYTZ, BC JONES, JH AF SHARPTON, VL SCHURAYTZ, BC JONES, JH TI ARGUMENTS FAVORING A CONTINENTAL IMPACT SITE AT THE K/T BOUNDARY SO METEORITICS LA English DT Meeting Abstract ID CRETACEOUS-TERTIARY BOUNDARY; SM-ND; RB-SR; SEDIMENTS; CARAVACA; SPAIN C1 LUNAR & PLANETARY INST,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 9 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 DEC PY 1990 VL 25 IS 4 BP 408 EP 409 PG 2 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300168 ER PT J AU THOMAS, KL KELLER, LP ZOLENSKY, ME KLOCK, W MCKAY, DS AF THOMAS, KL KELLER, LP ZOLENSKY, ME KLOCK, W MCKAY, DS TI COMPOSITION OF SMECTITE AND SERPENTINE PHYLLOSILICATES IN HYDRATED INTERPLANETARY DUST PARTICLES AND THEIR RELATIONSHIPS TO UOC AND C3 CHONDRITE MATRICES SO METEORITICS LA English DT Meeting Abstract C1 LOCKHEED ELECTR CO INC,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 7 TC 2 Z9 2 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 DEC PY 1990 VL 25 IS 4 BP 414 EP 414 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300184 ER PT J AU ZOLENSKY, M SEE, T ATKINSON, D ALLBROOKS, M SIMON, C HUMES, D KINARD, W FINCKENOR, M WARREN, J CARDENAS, F CHRISTIANSEN, E AF ZOLENSKY, M SEE, T ATKINSON, D ALLBROOKS, M SIMON, C HUMES, D KINARD, W FINCKENOR, M WARREN, J CARDENAS, F CHRISTIANSEN, E TI INSPECTION OF THE LONG DURATION EXPOSURE FACILITY SO METEORITICS LA English DT Meeting Abstract C1 NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. LOCKHEED ELECTR CO INC, HOUSTON, TX 77058 USA. S CUBED INC, ALBUQUERQUE, NM USA. NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. NASA, GEORGE C MARSHALL SPACE FLIGHT CTR, HUNTSVILLE, AL 35812 USA. WASHINGTON UNIV, ST LOUIS, MO 63130 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 USA SN 0026-1114 J9 METEORITICS JI Meteoritics PD DEC PY 1990 VL 25 IS 4 BP 424 EP 424 PG 1 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EU263 UT WOS:A1990EU26300208 ER PT J AU PRIMAS, LE AF PRIMAS, LE TI CABLE DELAY COMPENSATOR FOR MICROWAVE SIGNAL DISTRIBUTION OVER OPTICAL FIBERS SO MICROWAVE JOURNAL LA English DT Article AB The design and performance of a narrowband fiber optic cable delay compensator (CDC) used to improve the long term stability of a fiber optic link is described. A fiber optic system is used to distribute both narrowband reerence signals and wideband microwave signals to remote locations without degrading the stability of the signal. The fiber optic CDC reduces phase variations of a reference signal caused by temperature fluctuations of the optical fiber by a factor of 400. RP PRIMAS, LE (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 6 TC 1 Z9 1 U1 0 U2 0 PU HORIZON HOUSE-MICROWAVE PI NORWOOD PA 685 CANTON ST, NORWOOD, MA 02062 SN 0192-6225 J9 MICROWAVE J JI Microw. J. PD DEC PY 1990 VL 33 IS 12 BP 81 EP & PG 0 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EQ570 UT WOS:A1990EQ57000003 ER PT J AU KAMATH, C WEERATUNGA, S AF KAMATH, C WEERATUNGA, S TI IMPLEMENTATION OF 2 PROJECTION METHODS ON A SHARED MEMORY MULTIPROCESSOR - DEC VAX 6240 SO PARALLEL COMPUTING LA English DT Note DE NONSYMMETRIC LINEAR SYSTEMS; PROJECTION METHODS; CONJUGATE GRADIENT; BLOCK SSOR; SYMMETRICAL KACZMARZ; SHARED MEMORY MULTIPROCESSORS ID SYSTEMS AB In this paper, we compare the relative performance of two iterative schemes, based on projection techniques, on a shared memory multiprocessor - VAX 6240. We consider the CG accelerated Block-SSOR method and the CG accelerated Symmetric-Kaczmarz method for the solution of large sparse non-symmetric systems of linear equations. We show that the regular structure of many matrices can be exploited by the CG-accelerated Block-SSOR method to provide good speedup in a multiprocessing environment. However, the CG accelerated Symmetric-Kaczmarz method, while being a viable alternative on a scalar machine, is unable to benefit from multiprocessing. C1 NASA,AMES RES CTR,DIV NAS SYST,COMP SCI CORP,MOFFETT FIELD,CA 94035. RP KAMATH, C (reprint author), DIGITAL EQUIPMENT CORP,APPL COMP MATH GRP,181 LYTTON AVE,UCP,PALO ALTO,CA 94301, USA. NR 10 TC 2 Z9 2 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 DEC PY 1990 VL 16 IS 2-3 BP 375 EP 382 DI 10.1016/0167-8191(90)90075-K PG 8 WC Computer Science, Theory & Methods SC Computer Science GA EQ885 UT WOS:A1990EQ88500023 ER PT J AU BOCZAR, BA PALMISANO, AC AF BOCZAR, BA PALMISANO, AC TI PHOTOSYNTHETIC PIGMENTS AND PIGMENT-PROTEINS IN NATURAL-POPULATIONS OF ANTARCTIC SEA-ICE DIATOMS SO PHYCOLOGIA LA English DT Article ID CHLOROPHYLL-PROTEIN; GLENODINIUM-SP; MCMURDO-SOUND; MARINE DINOFLAGELLATE; PHAEODACTYLUM-TRICORNUTUM; MICROBIAL COMMUNITIES; PERIDININ-CHLOROPHYLL; GONYAULAX-POLYEDRA; COMPLEXES; MICROALGAE AB Pigment analyses of natural populations of sea-ice diatoms in Antarctica showed a range of chlorophyll a:c molar ratios of 1.85-3.83 and carotenoid (fucoxanthin): chlorophyll a molar ratios of 1.52-2.57. To understand the structural organization of pigments in these low light-adapted populations, the photosynthetic apparatus of a monospecific natural population of the Antartic sea ice diatom, Nitzschia stella Manguin (Bacillariophyta), was investigated. Three chlorophyll-protein complexes were isolated from the thylakoid membranes of this diatom. Spectral and pigment analyses revealed that, while all three complexes possessed chlorophyll a and fucoxanthin, chlorophyll c was found only in Complexes I and II. Fifty-nine per cent of the chlorophyll c was found in Complex I, which possessed a chlorophyll a:chlorophyll c:fucoxanthin ratio of 1:2:1, a ratio enriched in accessory pigments compared to whole cell ratios. Complex III contained fucoxanthin and 53% of the total chlorophyll a; this complex contained polypeptides in the 18.5 kDa range. These results are in contrast with those previously reported for studies of temperate diatoms. This is the first investigation of the pigment-protein composition of a natural (field) population of diatoms. C1 UNIV WASHINGTON,DEPT BOT,SEATTLE,WA 98195. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 29 TC 6 Z9 7 U1 3 U2 7 PU INT PHYCOLOGICAL SOC PI LAWRENCE PA NEW BUSINESS OFFICE, PO BOX 1897, LAWRENCE, KS 66044-8897 SN 0031-8884 J9 PHYCOLOGIA JI Phycologia PD DEC PY 1990 VL 29 IS 4 BP 470 EP 477 DI 10.2216/i0031-8884-29-4-470.1 PG 8 WC Plant Sciences; Marine & Freshwater Biology SC Plant Sciences; Marine & Freshwater Biology GA EP080 UT WOS:A1990EP08000010 ER PT J AU DRACHMAN, RJ BHATIA, AK SHABAZZ, AA AF DRACHMAN, RJ BHATIA, AK SHABAZZ, AA TI 2-PHOTON TRANSITIONS IN HYDROGEN - A TEST OF PSEUDOSTATE SUMMATION SO PHYSICAL REVIEW A LA English DT Article C1 CLARK ATLANTA UNIV,DEPT MATH SCI,ATLANTA,GA 30314. RP DRACHMAN, RJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771, USA. NR 6 TC 33 Z9 33 U1 0 U2 3 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 DEC 1 PY 1990 VL 42 IS 11 BP 6333 EP 6335 DI 10.1103/PhysRevA.42.6333 PG 3 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EM500 UT WOS:A1990EM50000005 ER PT J AU MANSOUR, NN LUNDGREN, TS AF MANSOUR, NN LUNDGREN, TS TI 3-DIMENSIONAL INSTABILITY OF ROTATING-FLOWS WITH OSCILLATING AXIAL STRAIN SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Letter C1 UNIV MINNESOTA,DEPT AEROSP ENGN & MECH,MINNEAPOLIS,MN 55455. RP MANSOUR, NN (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 6 TC 15 Z9 15 U1 1 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD DEC PY 1990 VL 2 IS 12 BP 2089 EP 2091 DI 10.1063/1.857794 PG 3 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EM498 UT WOS:A1990EM49800002 ER PT J AU MORTON, DS SUBRAMANIAN, RS BALASUBRAMANIAM, R AF MORTON, DS SUBRAMANIAN, RS BALASUBRAMANIAM, R TI THE MIGRATION OF A COMPOUND DROP DUE TO THERMOCAPILLARITY SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP MORTON, DS (reprint author), CLARKSON UNIV,DEPT CHEM ENGN,POTSDAM,NY 13699, USA. NR 20 TC 18 Z9 18 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD DEC PY 1990 VL 2 IS 12 BP 2119 EP 2133 DI 10.1063/1.857798 PG 15 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EM498 UT WOS:A1990EM49800006 ER PT J AU SIROVICH, L BALL, KS KEEFE, LR AF SIROVICH, L BALL, KS KEEFE, LR TI PLANE-WAVES AND STRUCTURES IN TURBULENT CHANNEL FLOW SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Article C1 BROWN UNIV,DIV APPL MATH,PROVIDENCE,RI 02912. UNIV TEXAS,DEPT MECH ENGN,AUSTIN,TX 78712. NASA,AMES RES CTR,CTR TURBULENCE RES,MOFFETT FIELD,CA 94035. RP SIROVICH, L (reprint author), BROWN UNIV,CTR FLUID MECH TURBULENCE & COMPUTAT,PROVIDENCE,RI 02912, USA. NR 47 TC 76 Z9 78 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD DEC PY 1990 VL 2 IS 12 BP 2217 EP 2226 DI 10.1063/1.857808 PG 10 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EM498 UT WOS:A1990EM49800017 ER PT J AU TURNER, MS AF TURNER, MS TI WINDOWS ON THE AXION SO PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS LA English DT Review C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS & ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP TURNER, MS (reprint author), FERMI NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510, USA. NR 130 TC 367 Z9 368 U1 0 U2 7 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-1573 J9 PHYS REP JI Phys. Rep.-Rev. Sec. Phys. Lett. PD DEC PY 1990 VL 197 IS 2 BP 67 EP 97 DI 10.1016/0370-1573(90)90172-X PG 31 WC Physics, Multidisciplinary SC Physics GA EN799 UT WOS:A1990EN79900001 ER PT J AU BAKER, DN FAIRFIELD, DH SLAVIN, JA RICHARDSON, IG CRAVEN, JD FRANK, LA ELPHIC, RC SINGER, HJ OWEN, CJ ZWICKL, RD AF BAKER, DN FAIRFIELD, DH SLAVIN, JA RICHARDSON, IG CRAVEN, JD FRANK, LA ELPHIC, RC SINGER, HJ OWEN, CJ ZWICKL, RD TI THE SUBSTORM EVENT OF 28 JANUARY 1983 - A DETAILED GLOBAL STUDY SO PLANETARY AND SPACE SCIENCE LA English DT Article ID DEEP GEOMAGNETIC TAIL; ENERGETIC ION BURSTS; DISTANT MAGNETOTAIL; BOUNDARY-LAYER; ISEE-C; MAGNETOSPHERIC SUBSTORMS; MAGNETIC-FIELD; PLASMA SHEET; SOLAR-WIND; NEAR-EARTH AB A small, isolated substorm with an expansion phase onset at 07:39 U.T. (+/- 1 min) on 28 January 1983 was well observed by ground-based instrumentation as well as by low- and high-altitude spacecraft. This event period was chosen as a detailed analysis interval because of the comprehensive nature of the data coverage, and because ISEE-3 identified signatures within the distant tail (approximately 220 R(E)) following the substorm onset which had been interpreted as those of a plasmoid passage. In this paper we provide a comprehensive timeline of the growth, expansion, and recovery phases of the substorm. The magnetospheric energy input rates are evaluated using IMP-8 in the upstream solar wind. For the first time, DE-1 imaging sequences are used to examine auroral features during the growth and expansion phases while ISEE-3 was in the deep tail. Substorm current wedge location and expansion onset information was provided by ground-based magnetometer and geostationary orbit (particle and magnetic field) data. The plasma, energetic particle, and field signatures at ISEE-3 are considered within the framework of the near-Earth data sets. We quantitatively estimate substorm energy input and output relationships for this case and we evaluate the timing and physical dimensions of the distant tail disturbance implied by the global observations available. Overall, the present analysis provides a thorough documentation of a substorm to an unprecedented degree; most of the data support the developing paradigm of the near-Earth neutral line and plasmoid formation model. We also consider the boundary layer dynamics model of substorms as an alternative explanation of the global magnetospheric phenomena in this event, but as presented this model does not provide a superior organization of the available data sets. C1 UNIV IOWA,DEPT PHYS & ASTRON,IOWA CITY,IA 52242. UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87549. GEOPHYS LAB,PHG,BEDFORD,MA 01731. UNIV LONDON IMPERIAL COLL SCI & TECHNOL,BLACKETT LAB,LONDON SW7 2BZ,ENGLAND. SPACE ENVIRONM LAB,BOULDER,CO 80302. RP BAKER, DN (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Owen, Christopher/C-2999-2008; Slavin, James/H-3170-2012 OI Owen, Christopher/0000-0002-5982-4667; Slavin, James/0000-0002-9206-724X NR 35 TC 8 Z9 8 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0032-0633 J9 PLANET SPACE SCI JI Planet Space Sci. PD DEC PY 1990 VL 38 IS 12 BP 1495 EP & DI 10.1016/0032-0633(90)90156-K PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER572 UT WOS:A1990ER57200003 ER PT J AU SARAVANOS, DA CHAMIS, CC AF SARAVANOS, DA CHAMIS, CC TI AN INTEGRATED METHODOLOGY FOR OPTIMIZING THE PASSIVE DAMPING OF COMPOSITE STRUCTURES SO POLYMER COMPOSITES LA English DT Article ID FIBER ORIENTATION; OPTIMUM DESIGN; PLATES; STIFFNESS AB A method is presented for tailoring plate and shell composite structures for optimal forced damped dynamic response. The passive damping of specific vibration modes is optimized with respect to dynamic performance criteria including placement of natural frequencies and minimization of resonance amplitudes. The method provides the capability to tailor micromechanics, laminate and structural parameters. Application studies include the optimization of laminated composite beams and composite shells with fiber volume ratios and ply angles as design variables. The results illustrate the significance of damping tailoring to the dynamic performance of composite structures and the effectiveness of the method in optimizing the structural dynamic response. C1 NASA,LEWIS RES CTR,DIV STRUCT,CLEVELAND,OH 44135. RP SARAVANOS, DA (reprint author), CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106, USA. NR 18 TC 13 Z9 14 U1 0 U2 0 PU SOC PLASTICS ENG INC PI BROOKFIELD CENTER PA 14 FAIRFIELD DR, BROOKFIELD CENTER, CT 06804-0403 SN 0272-8397 J9 POLYM COMPOSITE JI Polym. Compos. PD DEC PY 1990 VL 11 IS 6 BP 328 EP 336 DI 10.1002/pc.750110606 PG 9 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA EP853 UT WOS:A1990EP85300005 ER PT J AU LANGEL, RA AF LANGEL, RA TI STUDY OF THE CRUST AND MANTLE USING MAGNETIC SURVEYS BY MAGSAT AND OTHER SATELLITES SO PROCEEDINGS OF THE INDIAN ACADEMY OF SCIENCES-EARTH AND PLANETARY SCIENCES LA English DT Article DE CRUST; MANTLE; MAGNETIC SURVEY; MAGSAT; MANTLE CONDUCTIVITY; INDUCTION STUDIES CRUSTAL FIELDS; CONTINENTAL OCEANIC BOUNDARIES; SPHERICAL HARMONIC MODELS; EQUIVALENT SOURCE METHOD; ROCK PROPERTIES; MAGNETIC LAYER; FORWARD MODELING ID IONOSPHERIC FIELD CORRECTION; SCALAR ANOMALY DISTRIBUTION; CAP HARMONIC-ANALYSIS; GEOMAGNETIC-FIELD; UNITED-STATES; RIDGE-REGRESSION; REMANENT MAGNETIZATION; NONORTHOGONAL PROBLEMS; GLOBAL PERSPECTIVE; CONTINENTAL-CRUST AB Among the first measurements made from near-Earth orbiting satellites were measurements of the magnetic field. The sources of that field lie both within the Earth, in its core and crust, and in the surrounding ionosphere and magnetosphere. This article summarizes some of the methodology and results for studies of the Earth's mantle and crust. Mantle conductivity studies can be made either by studying signals impressed on the Earth from outside, e.g., the ionosphere or magnetosphere, or by studying signals originating in the core and transmitted through the mantle. Crustal field studies begin with a careful selection of the data and subsequent removal of core and external fields by some sort of filtering. Average maps from different local times sometimes differ, presumably due to the remaining presence of fields of external origin. Several techniques for further filtering are discussed. Where large-area aeromagnetic maps are available, crustal maps derived from satellite data can be compared with upward continued data. In general, the comparisons show agreement, with some differences, particularly in and near the auroral belts. The satellite data are further reduced by various methods of inverse and forward modelling, sometimes including reduction to the pole (RTP). These techniques are generally unstable at the equator. Common methods of stabilizing the inversions include principle components analysis and ridge regression. Because of the presence of the core field, the entire crustal contribution from the field is not known. Also, there is a basic nonuniqueness to the inverse solutions. Nevertheless, magnetizations that are interpretable can be derived. RP LANGEL, RA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GEOL & GEOMAGNETISM BRANCH,GREENBELT,MD 20771, USA. NR 130 TC 15 Z9 16 U1 0 U2 1 PU INDIAN ACADEMY SCIENCES PI BANGALORE PA P B 8005 C V RAMAN AVENUE, BANGALORE 560 080, INDIA SN 0253-4126 J9 P INDIAN AS-EARTH JI Proc. Indian Acad. Sci.-Earth Planet. Sci PD DEC PY 1990 VL 99 IS 4 BP 581 EP 618 PG 38 WC Geosciences, Multidisciplinary SC Geology GA FF068 UT WOS:A1990FF06800006 ER PT J AU GURZADYAN, GA CHOLAKYAN, VG KONDO, Y TERZIAN, Y SHORE, SN AF GURZADYAN, GA CHOLAKYAN, VG KONDO, Y TERZIAN, Y SHORE, SN TI THE MG-II H-INTERSTELLAR AND K-INTERSTELLAR LINES IN THE SPECTRUM OF THE G-TYPE GIANT HD-156854 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article DE ULTRAVIOLET SPECTRA; MG-II LAMBDA-2800; RESONANCE LINE 2852 MG-I; INTERSTELAR HYDROGEN ID OUTER ATMOSPHERES; COOL STARS; EMISSION AB The results of the measurements and analysis of the IUE observations of the 2800 Mg II doublet in the spectrum of HD 156854, a G9 III star, are presented. The relative power of the magnesium chromosphere, R(Mg) = 1.0 x 10(-5), is in agreement with the known data for giants of the same class. The emission profiles of this doublet present absorption cores, which are of interstellar origin. Taking into account the interstellar depletion of Mg, the derived density of interstellar hydrogen is n(H) = 1.0 cm(-1), which agrees with the conclusion (Paresce 1984) about the possibility of large hydrogen concentrations in some directions of the Galaxy far from the Sun. C1 ACAD SCI ARSSR,BYURAKAN ASTROPHYS OBSERV,BYURAKAN 378433,ARMENIA,USSR. EREVAN POLYTECH INST,EREVAN,ARMENIA,USSR. NASA,GODDARD SPACE FLIGHT CTR,GHRS SCI TEAM,GREENBELT,MD 20771. CORNELL UNIV,DEPT ASTRON,ITHACA,NY 14853. CORNELL UNIV,NAIC,ITHACA,NY 14853. NR 18 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD DEC PY 1990 VL 102 IS 658 BP 1387 EP 1391 DI 10.1086/132780 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER574 UT WOS:A1990ER57400006 ER PT J AU RATHZ, TJ ROBINSON, MB HOFMEISTER, WH BAYUZICK, RJ AF RATHZ, TJ ROBINSON, MB HOFMEISTER, WH BAYUZICK, RJ TI THE MARSHALL-SPACE-FLIGHT-CENTER DROP TUBE FACILITY SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. VANDERBILT UNIV,DEPT MAT SCI & ENGN,NASHVILLE,TN 37235. RP RATHZ, TJ (reprint author), UNIV ALABAMA,JOHNSON RES CTR,HUNTSVILLE,AL 35899, USA. OI Hofmeister, William/0000-0002-4145-7061 NR 11 TC 13 Z9 14 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 DEC PY 1990 VL 61 IS 12 BP 3846 EP 3853 DI 10.1063/1.1141511 PG 8 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EL893 UT WOS:A1990EL89300032 ER PT J AU SAUNDERS, RS AF SAUNDERS, RS TI THE SURFACE OF VENUS SO SCIENTIFIC AMERICAN LA English DT Article RP SAUNDERS, RS (reprint author), CALTECH,JET PROP LAB,NASA,MAGELLAN MISS,PASADENA,CA 91109, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 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 DEC PY 1990 VL 263 IS 6 BP 60 EP 65 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EJ576 UT WOS:A1990EJ57600011 ER PT J AU MCKAY, CP HAYNES, RH AF MCKAY, CP HAYNES, RH TI SHOULD WE IMPLANT LIFE ON MARS SO SCIENTIFIC AMERICAN LA English DT Editorial Material C1 YORK UNIV,BIOL,DOWNSVIEW M3J 1P3,ONTARIO,CANADA. RP MCKAY, CP (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035, USA. NR 0 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 DEC PY 1990 VL 263 IS 6 BP 144 EP 144 PG 1 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EJ576 UT WOS:A1990EJ57600019 PM 11536477 ER PT J AU ASCHWANDEN, MJ BENZ, AO SCHWARTZ, RA LIN, RP PELLING, RM STEHLING, W AF ASCHWANDEN, MJ BENZ, AO SCHWARTZ, RA LIN, RP PELLING, RM STEHLING, W TI FLARE FRAGMENTATION AND TYPE-III PRODUCTIVITY IN THE 1980 JUNE 27 FLARE SO SOLAR PHYSICS LA English DT Article ID HARD X-RAYS; SOLAR-FLARES; IMPULSIVE PHASE; RADIO SPIKES; BURSTS; ACCELERATION; DRIFT AB We present observations of the solar flare on 1980 June 27, 16:14-16:33 UT, which was observed by a balloon-borne 300 cm2 phoswich hard X-ray detector and by the IKARUS radio spectrometer. This flare shows intense hard X-ray (HXR) emission and an extreme productivity of (at least 754) type III bursts at 200-400 MHz. A linear correlation was found between the type III burst rate and the HXR fluence, with a coefficient of almost-equal-to 7.6 x 10(27) photons keV-1 per type III burst at 20 keV. The occurrence of almost-equal-to 10 type III bursts per second, and also the even higher rate of millisecond spikes, suggests a high degree of fragmentation in the acceleration region. This high quantization of injected beams, assuming the thick-target model, shows up in a linear relationship between hard X-ray fluence and the type III rate, but not as fine structures in the HXR time profile. The generation of a superhot isothermal HXR component in the decay phase of the flare coincides with the fade-out of type III production. C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. SWISS FED INST TECHNOL,INST ASTRON,CH-8092 ZURICH,SWITZERLAND. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. UNIV CALIF SAN DIEGO,CTR ASTROPHYS & SPACE SCI,SAN DIEGO,CA 92103. UNIV CALIF BERKELEY,CTR ASTROPHYS & SPACE SCI,BERKELEY,CA 94720. SWISS FED INST TECHNOL,INST ASTRON,CH-8092 ZURICH,SWITZERLAND. NR 22 TC 32 Z9 32 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-0938 J9 SOL PHYS JI Sol. Phys. PD DEC PY 1990 VL 130 IS 1-2 BP 39 EP 55 DI 10.1007/BF00156778 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER981 UT WOS:A1990ER98100005 ER PT J AU SAWANT, HS LATTARI, CJB BENZ, AO DENNIS, BR AF SAWANT, HS LATTARI, CJB BENZ, AO DENNIS, BR TI HARD X-RAYS AND ASSOCIATED WEAK DECIMETRIC BURSTS SO SOLAR PHYSICS LA English DT Article ID III RADIO-BURSTS; SOLAR-FLARES; ELECTRONS; ACCELERATION AB In previous attempts to show one-to-one correlation between type III bursts and X-ray spikes, there have been ambiguities as to which several X-ray spikes are correlated with any given type III burst. Here, we present observations that show clear associations of X-ray bursts with RS type III bursts between 16:46 UT and 16:52 UT on July 9, 1985. The hard X-ray observations were made at energies above 25 keV with HXRBS on SMM and the radio observations were made at 1.63 GHz using the 13.7 m Itapetinga antenna in R and L polarization with a time resolution of 3 ms. Detailed comparison between the hard X-ray and radio observations shows: (1) In at least 13 cases we can identify the associated hard X-ray and decimetric RS bursts. (2) On average, the X-ray peaks were delayed from the peak of the RS bursts at 1.6 GHz by approximately 400 ms although a delay as long as 1 s was observed in one case. One possible explanation of the long delays between the RS bursts and the associated X-ray bursts is that the RS burst is produced at the leading edge of the electron beam, whereas the X-ray burst peaks at the time of arrival of the bulk of the electrons at the high density region at the lower corona and upper chromosphere. Thus, the time comparison must be made between the peak of the radio pulse and the start of the X-ray burst. In that case the delays are consistent with an electron travel time with velocity approximately 0.3 c from the 800 MHz plasma level to the lower corona assuming that the radio emission is at the second harmonic. C1 INST ASTRON,ZURICH,SWITZERLAND. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP SAWANT, HS (reprint author), INST NACL PESQUISAS ESPACIAIS,CP 515,BR-12201 SAO JOSE CAMPOS,SP,BRAZIL. RI Dennis, Brian/C-9511-2012 NR 21 TC 15 Z9 17 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-0938 J9 SOL PHYS JI Sol. Phys. PD DEC PY 1990 VL 130 IS 1-2 BP 57 EP 73 DI 10.1007/BF00156779 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER981 UT WOS:A1990ER98100006 ER PT J AU MCCLEMENTS, KG SU, JJ BINGHAM, R DAWSON, JM SPICER, DS AF MCCLEMENTS, KG SU, JJ BINGHAM, R DAWSON, JM SPICER, DS TI SIMULATION STUDIES OF ELECTRON ACCELERATION BY ION RING DISTRIBUTIONS IN SOLAR-FLARES SO SOLAR PHYSICS LA English DT Article ID X-RAY-BURSTS; PERPENDICULAR BOW SHOCK; IMPULSIVE PHASE; INSTABILITY; EMISSION; FRONT; MODEL AB Using a 2 1/2-D fully relativistic electromagnetic particle-in-cell code (PIC) we have investigated a potential electron acceleration mechanism in solar flares. The free energy is provided by ions which have a ring velocity distribution about the magnetic field direction. Ion rings may be produced by perpendicular shocks, which could in turn be generated by the super-Alfvenic motion of magnetic flux tubes emerging from the photosphere or by coronal mass ejections (CMEs). Such ion distributions are known to be unstable to the generation of lower hybrid waves, which have phase velocities in excess of the electron thermal speed parallel to the field and can, therefore, resonantly accelerate electrons in that direction. The simulations show the transfer of perpendicular ion energy to energetic electrons via lower hybrid wave turbulence. With plausible ion ring velocities, the process can account for the observationally inferred fluxes and energies of non-thermal electrons during the impulsive phase of flares. Our results also show electrostatic wave generation close to the plasma frequency: we suggest that this is due to a bump-in-tail instability of the electron distribution. C1 UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP MCCLEMENTS, KG (reprint author), RUTHERFORD APPLETON LAB,DIV ASTROPHYS,DIDCOT OX11 0QX,OXON,ENGLAND. NR 35 TC 21 Z9 21 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0038-0938 J9 SOL PHYS JI Sol. Phys. PD DEC PY 1990 VL 130 IS 1-2 BP 229 EP 241 DI 10.1007/BF00156791 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER981 UT WOS:A1990ER98100018 ER PT J AU MAYR, HG HARRIS, I HERRERO, FA SPENCER, NW VAROSI, F PESNELL, WD AF MAYR, HG HARRIS, I HERRERO, FA SPENCER, NW VAROSI, F PESNELL, WD TI THERMOSPHERIC GRAVITY-WAVES - OBSERVATIONS AND INTERPRETATION USING THE TRANSFER-FUNCTION MODEL (TFM) SO SPACE SCIENCE REVIEWS LA English DT Review ID DISSIPATIVE MULTICONSTITUENT MEDIUM; VENUS UPPER-ATMOSPHERE; TRAVELLING IONOSPHERIC DISTURBANCES; EARTHS THERMOSPHERE; GLOBAL EXCITATION; DIURNAL-VARIATIONS; VERTICAL MOTIONS; TEMPERATURE; PROPAGATION; CIRCULATION AB Gravity waves are prominent in the polar region of the terrestrial thermosphere, and can be excited by perturbations in Joule heating and Lorents force due to magnetospheric processes. We show observations from the Dynamics Explorer-2 satellite to illustrate the complexity of the phenomenon and review the transfer function model (TFM) which has guided our interpretation. On a statistical basis, the observed atmospheric perturbations decrease from the poles toward the equator and tend to correlate with the magnetic activity index, Ap, although individual measurements indicate that the magnetic index is often a poor measure of gravity wave excitation. The theoretical models devised to describe gravity waves are multifaceted. On one end are fully analytical, linear models which are based on the work of Hines. On the other end are fully numerical, thermospheric general circulation models (TGCMs) which incorporate non-linear processes and wave mean flow interactions. The transfer function model (TFM) discussed in this paper is between these two approaches. It is less restrictive than the analytical approach and relates the global propagation of gravity waves to their excitation. Compared with TGCMs, the TFM is simplified by its linear approximation; but it is not limited in spatial and temporal resolution, and the TFM describes the wave propagation through the lower atmosphere. Moreover, the TFM is semianalytical which helps in delineating the wave components. Using expansions in terms of spherical harmonics and Fourier components, the transfer function is obtained from numerical height integration. This is time consuming computationally but needs to be done only once. Once such a transfer function is computed, the wave response to arbitrary source distributions on the globe can then be constructed in very short order. In this review, we discuss some numerical experiments performed with the TFM, to study the various wave components excited in the auroral regions which propagate through the thermosphere and lower atmosphere, and to elucidate the properties of realistic source geometries. The model is applied to the interpretation of satellite measurements. Gravity waves observed in the thermosphere of Venus are also discussed. RP NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA. RI Pesnell, William/D-1062-2012 OI Pesnell, William/0000-0002-8306-2500 NR 97 TC 62 Z9 65 U1 1 U2 5 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0038-6308 EI 1572-9672 J9 SPACE SCI REV JI Space Sci. Rev. PD DEC PY 1990 VL 54 IS 3-4 BP 297 EP 375 PG 79 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ER072 UT WOS:A1990ER07200002 ER PT J AU THANEDAR, PB ARORA, JS LI, GY LIN, TC AF THANEDAR, PB ARORA, JS LI, GY LIN, TC TI ROBUSTNESS, GENERALITY AND EFFICIENCY OF OPTIMIZATION ALGORITHMS FOR PRACTICAL APPLICATIONS SO STRUCTURAL OPTIMIZATION LA English DT Article RP THANEDAR, PB (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0934-4373 J9 STRUCT OPTIMIZATION JI Struct. Optim. PD DEC PY 1990 VL 2 IS 4 BP 203 EP 212 DI 10.1007/BF01748225 PG 10 WC Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Mechanics SC Computer Science; Engineering; Mechanics GA EL769 UT WOS:A1990EL76900002 ER PT J AU MIURA, H AF MIURA, H TI AN IMPROVED FULLY STRESSED DESIGN ALGORITHM FOR PLATE SHELL STRUCTURES SO STRUCTURAL OPTIMIZATION LA English DT Article RP MIURA, H (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0934-4373 J9 STRUCT OPTIMIZATION JI Struct. Optim. PD DEC PY 1990 VL 2 IS 4 BP 233 EP 237 DI 10.1007/BF01748228 PG 5 WC Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Mechanics SC Computer Science; Engineering; Mechanics GA EL769 UT WOS:A1990EL76900005 ER PT J AU FAUR, M FAUR, M JENKINS, P GORADIA, M BAILEY, S JAYNE, D WEINBERG, I GORADIA, C AF FAUR, M FAUR, M JENKINS, P GORADIA, M BAILEY, S JAYNE, D WEINBERG, I GORADIA, C TI STUDY OF SURFACE PASSIVATION OF INP SO SURFACE AND INTERFACE ANALYSIS LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106. CLEVELAND STATE UNIV,DEPT ELECT ENGN,CLEVELAND,OH 44115. RP FAUR, M (reprint author), CLEVELAND STATE UNIV,SPACE PHOTOVOLTA RES CTR,1983 E 23RD ST,CLEVELAND,OH 44115, USA. NR 20 TC 5 Z9 5 U1 2 U2 5 PU JOHN WILEY & SONS LTD PI W SUSSEX PA BAFFINS LANE CHICHESTER, W SUSSEX, ENGLAND PO19 1UD SN 0142-2421 J9 SURF INTERFACE ANAL JI Surf. Interface Anal. PD DEC PY 1990 VL 15 IS 12 BP 745 EP 750 DI 10.1002/sia.740151207 PG 6 WC Chemistry, Physical SC Chemistry GA EN424 UT WOS:A1990EN42400006 ER PT J AU KARIMI, M ILA, D DALINS, I VIDALI, G AF KARIMI, M ILA, D DALINS, I VIDALI, G TI INTERACTION OF H-2 WITH SIMPLE METAL-SURFACES - A MODEL BASED ON THE ANISOTROPIC EFFECTIVE MEDIUM THEORY SO SURFACE SCIENCE LA English DT Letter C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. SYRACUSE UNIV,DEPT PHYS,SYRACUSE,NY 13244. RP KARIMI, M (reprint author), ALABAMA A&M UNIV,DEPT PHYS,NORMAL,AL 35762, USA. NR 34 TC 3 Z9 3 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0039-6028 J9 SURF SCI JI Surf. Sci. PD DEC PY 1990 VL 239 IS 1-2 BP L505 EP L510 DI 10.1016/0039-6028(90)90606-9 PG 6 WC Chemistry, Physical; Physics, Condensed Matter SC Chemistry; Physics GA EM749 UT WOS:A1990EM74900004 ER PT J AU MIYOSHI, K AF MIYOSHI, K TI FUNDAMENTAL CONSIDERATIONS IN ADHESION, FRICTION AND WEAR FOR CERAMIC METAL CONTACTS SO WEAR LA English DT Article ID SURFACE ENERGIES; SOLID METALS AB When a ceramic is brought into contact with a metal, strong bonds form between the materials. Adhesion and friction are strongly dependent on the ductility of the metals. The hardness of the metals plays a much more important role in adhesion and friction than does the surface energy of metals. The adhesion, friction, surface energy and hardness of a metal are all related to its Young's modulus and shear modulus, which have a marked dependence on the electron configuration of the metal. An increase in shear modulus results in a decrease in area of contact that is greater than the corresponding increase in surface energy (the bond energy) with shear modulus. Consequently, the adhesion and friction decrease with increasing shear modulus. RP MIYOSHI, K (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 18 TC 15 Z9 15 U1 1 U2 2 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0043-1648 J9 WEAR JI Wear PD DEC PY 1990 VL 141 IS 1 BP 35 EP 44 DI 10.1016/0043-1648(90)90190-L PG 10 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EQ630 UT WOS:A1990EQ63000004 ER PT J AU BREININGER, DR SMITH, RB AF BREININGER, DR SMITH, RB TI WATERBIRD USE OF COASTAL IMPOUNDMENTS AND MANAGEMENT IMPLICATIONS IN EAST-CENTRAL FLORIDA SO WETLANDS LA English DT Article DE ANSERIFORMES; CHARADRIIFORMES; CICONIIFORMES; FLORIDA; HABITAT USE; IMPOUNDMENTS; MOSQUITO CONTROL; SHOREBIRDS; WADING BIRDS; WATERFOWL; WETLANDS AB Monthly surveys were conducted on Kennedy Space Center for one year to determine densities of waterbirds within impounded salt marshes that were predominantly open water with little emergent vegetation. The objective was to assess the importance of these impoundments to waterbirds, particularly wading birds, which are species of special conservation concern. Water-level management for mosquito control and waterfowl provided habitat for an abundance of ducks, shorebirds, coots, and wading birds. Average densities throughout the year for these groups were 5.26, 4.12, 2.80, and 2.20 birds/ha, respectively. The majority of waterfowl were present during the winter. Shorebirds were most common during spring migration. Wading bird densities increased with declining water level. Due to the extensive alteration and development of coastal wetlands in central Florida, properly managed impoundments may provide important feeding areas for maintaining certain waterbird populations. RP BREININGER, DR (reprint author), NASA,BIOMED OPERAT & RES OFF,BIONET CORP,KENNEDY SPACE CTR,FL 32899, USA. NR 0 TC 22 Z9 25 U1 0 U2 10 PU SOC WETLAND SCIENTISTS PI LAWRENCE PA 810 E TENTH ST, P O BOX 1897, LAWRENCE, KS 66044 SN 0277-5212 J9 WETLANDS JI Wetlands PD DEC PY 1990 VL 10 IS 2 BP 223 EP 241 PG 19 WC Ecology; Environmental Sciences SC Environmental Sciences & Ecology GA EQ611 UT WOS:A1990EQ61100007 ER PT J AU DENNING, PJ TICHY, WF AF DENNING, PJ TICHY, WF TI HIGHLY PARALLEL COMPUTATION SO SCIENCE LA English DT Article C1 UNIV KARLSRUHE,DEPT COMP SCI,W-7500 KARLSRUHE,GERMANY. RP DENNING, PJ (reprint author), NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035, USA. NR 25 TC 20 Z9 20 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD NOV 30 PY 1990 VL 250 IS 4985 BP 1217 EP 1222 DI 10.1126/science.250.4985.1217 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EK723 UT WOS:A1990EK72300027 PM 17829208 ER PT J AU ROSI, M BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H AF ROSI, M BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H TI THEORETICAL-STUDIES OF THE 1ST-ROW AND 2ND-ROW TRANSITION-METAL DIMETHYLS AND THEIR POSITIVE-IONS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Article C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RI Rosi, Marzio/L-5748-2015 OI Rosi, Marzio/0000-0002-1264-3877 NR 51 TC 71 Z9 75 U1 0 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. PD NOV 29 PY 1990 VL 94 IS 24 BP 8656 EP 8663 DI 10.1021/j100387a008 PG 8 WC Chemistry, Physical SC Chemistry GA EK725 UT WOS:A1990EK72500008 ER PT J AU SIDI, A FORD, WF AF SIDI, A FORD, WF TI QUOTIENT-DIFFERENCE TYPE GENERALIZATIONS OF THE POWER METHOD AND THEIR ANALYSIS SO JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS LA English DT Article C1 TECHNION ISRAEL INST TECHNOL,DEPT COMP SCI,IL-32000 HAIFA,ISRAEL. NASA,LEWIS RES CTR,DIV COMP SERV,CLEVELAND,OH 44135. NR 10 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0377-0427 J9 J COMPUT APPL MATH JI J. Comput. Appl. Math. PD NOV 26 PY 1990 VL 32 IS 1-2 BP 261 EP 272 DI 10.1016/0377-0427(90)90436-4 PG 12 WC Mathematics, Applied SC Mathematics GA EL970 UT WOS:A1990EL97000027 ER PT J AU WEDLICH, RC DAVIS, DD AF WEDLICH, RC DAVIS, DD TI NONISOTHERMAL KINETICS OF HYDRAZINE DECOMPOSITION SO THERMOCHIMICA ACTA LA English DT Article C1 NEW MEXICO STATE UNIV,DEPT CHEM,LAS CRUCES,NM 88003. NASA,LOCKHEED ENGN & SCI CO,WHITE SANDS TEST FACIL,LAS CRUCES,NM 88004. NR 25 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0040-6031 J9 THERMOCHIM ACTA JI Thermochim. Acta PD NOV 24 PY 1990 VL 171 BP 1 EP 13 DI 10.1016/0040-6031(90)87001-S PG 13 WC Thermodynamics; Chemistry, Analytical; Chemistry, Physical SC Thermodynamics; Chemistry GA EK644 UT WOS:A1990EK64400001 ER PT J AU SIMONS, RN LEE, RQ AF SIMONS, RN LEE, RQ TI COPLANAR WAVE-GUIDE-MICROSTRIP PROBE COUPLER AND APPLICATIONS TO ANTENNAS SO ELECTRONICS LETTERS LA English DT Article RP SIMONS, RN (reprint author), NASA,LEWIS RES CTR,MAIL STOP 54-5,21000 BROOKPK RD,CLEVELAND,OH 44135, USA. NR 4 TC 3 Z9 3 U1 0 U2 0 PU IEE-INST ELEC ENG PI HERTFORD PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD, ENGLAND SG1 2AY SN 0013-5194 J9 ELECTRON LETT JI Electron. Lett. PD NOV 22 PY 1990 VL 26 IS 24 BP 1998 EP 2000 DI 10.1049/el:19901292 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA EL236 UT WOS:A1990EL23600007 ER PT J AU LAUFER, G MCKENZIE, RL FLETCHER, DG AF LAUFER, G MCKENZIE, RL FLETCHER, DG TI METHOD FOR MEASURING TEMPERATURES AND DENSITIES IN HYPERSONIC WIND-TUNNEL AIR-FLOWS USING LASER-INDUCED O-2 FLUORESCENCE SO APPLIED OPTICS LA English DT Article C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. ANALATOM INC,SUNNYVALE,CA 94089. NR 22 TC 32 Z9 32 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 20 PY 1990 VL 29 IS 33 BP 4873 EP 4883 PG 11 WC Optics SC Optics GA EM029 UT WOS:A1990EM02900006 PM 20577481 ER PT J AU MCDERMID, IS GODIN, SM WALSH, TD AF MCDERMID, IS GODIN, SM WALSH, TD TI LIDAR MEASUREMENTS OF STRATOSPHERIC OZONE AND INTER-COMPARISONS AND VALIDATION SO APPLIED OPTICS LA English DT Article RP MCDERMID, IS (reprint author), JET PROP LAB,TABLE MT FACIL,WRIGHTWOOD,CA 92397, USA. NR 34 TC 21 Z9 21 U1 0 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 20 PY 1990 VL 29 IS 33 BP 4914 EP 4923 PG 10 WC Optics SC Optics GA EM029 UT WOS:A1990EM02900011 PM 20577486 ER PT J AU PERSIC, M JAHODA, K REPHAELI, Y BOLDT, E MARSHALL, FE MUSHOTZKY, RF RAWLEY, G AF PERSIC, M JAHODA, K REPHAELI, Y BOLDT, E MARSHALL, FE MUSHOTZKY, RF RAWLEY, G TI X-RAY STUDY OF SUPERCLUSTERS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 666,GREENBELT,MD 20771. TEL AVIV UNIV,SCH PHYS & ASTRON,IL-69978 TEL AVIV,ISRAEL. RP PERSIC, M (reprint author), OSSERV ASTRON TRIESTE,VIA GB TIEPOLO 11,I-34131 TRIESTE,ITALY. RI Jahoda, Keith/D-5616-2012 NR 30 TC 19 Z9 19 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 NOV 20 PY 1990 VL 364 IS 1 BP 1 EP 6 DI 10.1086/169380 PN 1 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH544 UT WOS:A1990EH54400001 ER PT J AU BOULANGER, F FALGARONE, E PUGET, JL HELOU, G AF BOULANGER, F FALGARONE, E PUGET, JL HELOU, G TI VARIATIONS IN THE ABUNDANCE OF TRANSIENTLY HEATED PARTICLES WITHIN NEARBY MOLECULAR CLOUDS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 ECOLE NORM SUPER, F-75231 PARIS 05, FRANCE. CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. CALTECH, DIV PHYS MATH & ASTRON, PASADENA, CA 91125 USA. RP BOULANGER, F (reprint author), CALTECH, CTR INFRARED PROC & ANAL, 100-22, PASADENA, CA 91125 USA. NR 70 TC 124 Z9 124 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD NOV 20 PY 1990 VL 364 IS 1 BP 136 EP + DI 10.1086/169394 PN 1 PG 1 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH544 UT WOS:A1990EH54400015 ER PT J AU BUTNER, HM EVANS, NJ HARVEY, PM MUNDY, LG NATTA, A RANDICH, MS AF BUTNER, HM EVANS, NJ HARVEY, PM MUNDY, LG NATTA, A RANDICH, MS TI HIGH-RESOLUTION, FAR-INFRARED OBSERVATIONS OF NGC-2071 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV TEXAS,DEPT ASTRON,AUSTIN,TX 78712. UNIV MARYLAND,ASTRON PROGRAM,COLLEGE PK,MD 20742. OSSERV ARECETRI,I-50125 FLORENCE,ITALY. CNR,CTR ASTRON INFRAROSSA,I-50127 FLORENCE,ITALY. UNIV FLORENCE,DEPARTIMENTO ASTRON,I-50121 FLORENCE,ITALY. RP BUTNER, HM (reprint author), NASA,AMES RES CTR,MS 245-6,MOFFETT FIELD,CA 94035, USA. OI Randich, Sofia/0000-0003-2438-0899; Butner, Harold/0000-0003-4899-2064 NR 50 TC 71 Z9 71 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 NOV 20 PY 1990 VL 364 IS 1 BP 164 EP 172 DI 10.1086/169398 PN 1 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH544 UT WOS:A1990EH54400019 ER PT J AU PARSONS, SB AKE, TB AF PARSONS, SB AKE, TB TI HD-51956 - A SUPERGIANT IN AN INTERACTING BINARY SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,CTR GHRS SCI SUPPORT,GREENBELT,MD 20771. SPACE TELESCOPE SCI INST,BALTIMORE,MD 21218. RP PARSONS, SB (reprint author), COMP SCI CORP,ASTRON PROGRAM,SILVER SPRING,MD 20910, USA. NR 20 TC 2 Z9 2 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 NOV 20 PY 1990 VL 364 IS 1 BP L13 EP L15 DI 10.1086/185863 PN 2 PG 3 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH545 UT WOS:A1990EH54500004 ER PT J AU ZANDER, R GUNSON, MR FOSTER, JC RINSLAND, CP NAMKUNG, J AF ZANDER, R GUNSON, MR FOSTER, JC RINSLAND, CP NAMKUNG, J TI STRATOSPHERIC CLONO2, HCL, AND HF CONCENTRATION PROFILES DERIVED FROM ATMOSPHERIC TRACE MOLECULE SPECTROSCOPY EXPERIMENT SPACELAB-3 OBSERVATIONS - AN UPDATE SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. NASA, LANGLEY RES CTR, DIV ATMOSPHER SCI, HAMPTON, VA 23665 USA. ST SYST CORP, HAMPTON, VA 23666 USA. RP ZANDER, R (reprint author), UNIV LIEGE, INST ASTROPHYS, B-4200 LIEGE, BELGIUM. NR 28 TC 52 Z9 52 U1 0 U2 2 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 NOV 20 PY 1990 VL 95 IS D12 BP 20519 EP 20525 DI 10.1029/JD095iD12p20519 PG 7 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EL022 UT WOS:A1990EL02200013 ER PT J AU MCGEE, TJ NEWMAN, P FERRARE, R WHITEMAN, D BUTLER, J BURRIS, J GODIN, S MCDERMID, IS AF MCGEE, TJ NEWMAN, P FERRARE, R WHITEMAN, D BUTLER, J BURRIS, J GODIN, S MCDERMID, IS TI LIDAR OBSERVATIONS OF OZONE CHANGES INDUCED BY SUBPOLAR AIR-MASS MOTION OVER TABLE MOUNTAIN, CALIFORNIA (34.4-DEGREES-N) SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, GODDARD SPACE FLIGHT CTR, OCEANS LAB, GREENBELT, MD 20771 USA. ST SYST CORP, LANHAM, MD 20707 USA. CALTECH, JET PROP LAB, TABLE MT FACIL, PASADENA, CA 91109 USA. RP MCGEE, TJ (reprint author), NASA, GODDARD SPACE FLIGHT CTR, ATMOSPHERES LAB, GREENBELT, MD 20771 USA. RI Newman, Paul/D-6208-2012; McGee, Thomas/G-4951-2013; Butler, James/D-4188-2013 OI Newman, Paul/0000-0003-1139-2508; NR 11 TC 5 Z9 5 U1 0 U2 1 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 NOV 20 PY 1990 VL 95 IS D12 BP 20527 EP 20530 DI 10.1029/JD095iD12p20527 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EL022 UT WOS:A1990EL02200014 ER PT J AU THOMPSON, AM ESAIAS, WE IVERSON, RL AF THOMPSON, AM ESAIAS, WE IVERSON, RL TI 2 APPROACHES TO DETERMINING THE SEA-TO-AIR FLUX OF DIMETHYL SULFIDE - SATELLITE OCEAN COLOR AND A PHOTOCHEMICAL MODEL WITH ATMOSPHERIC MEASUREMENTS SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, GODDARD SPACE FLIGHT CTR, HYDROSPHER PROC LAB, GREENBELT, MD 20771 USA. FLORIDA STATE UNIV, DEPT OCEANOG, TALLAHASSEE, FL 32306 USA. RP THOMPSON, AM (reprint author), NASA, GODDARD SPACE FLIGHT CTR, ATMOSPHERES LAB, MAIL CODE 916, GREENBELT, MD 20771 USA. RI Thompson, Anne /C-3649-2014 OI Thompson, Anne /0000-0002-7829-0920 NR 52 TC 32 Z9 32 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 NOV 20 PY 1990 VL 95 IS D12 BP 20551 EP 20558 DI 10.1029/JD095iD12p20551 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EL022 UT WOS:A1990EL02200017 ER PT J AU TUFTS, BJ CASAGRANDE, LG LEWIS, NS GRUNTHANER, FJ AF TUFTS, BJ CASAGRANDE, LG LEWIS, NS GRUNTHANER, FJ TI CORRELATIONS BETWEEN THE INTERFACIAL CHEMISTRY AND CURRENT-VOLTAGE BEHAVIOR OF N-GAAS LIQUID JUNCTIONS SO APPLIED PHYSICS LETTERS LA English DT Article C1 CALTECH,DIV CHEM & CHEM ENGN,PASADENA,CA 91125. CALTECH,JET PROP LAB,PASADENA,CA 91109. 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 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD NOV 19 PY 1990 VL 57 IS 21 BP 2262 EP 2264 DI 10.1063/1.104288 PG 3 WC Physics, Applied SC Physics GA EJ524 UT WOS:A1990EJ52400033 ER PT J AU BAUSCHLICHER, CW PARTRIDGE, H LANGHOFF, SR AF BAUSCHLICHER, CW PARTRIDGE, H LANGHOFF, SR TI AN ABINITIO STUDY OF THE LOW-LYING DOUBLET STATES OF AGO AND AGS SO CHEMICAL PHYSICS LA English DT Article RP BAUSCHLICHER, CW (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 34 TC 21 Z9 21 U1 0 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0301-0104 J9 CHEM PHYS JI Chem. Phys. PD NOV 15 PY 1990 VL 148 IS 1 BP 57 EP 68 DI 10.1016/0301-0104(90)89006-C PG 12 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EH729 UT WOS:A1990EH72900006 ER PT J AU LOWE, R GORADIA, C GORADIA, M CHUBB, DL AF LOWE, R GORADIA, C GORADIA, M CHUBB, DL TI STUDY OF A CESIUM PLASMA AS A SELECTIVE EMITTER FOR THERMOPHOTOVOLTAIC APPLICATIONS SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP LOWE, R (reprint author), CLEVELAND STATE UNIV,SPACE PHOTOVOLTA RES CTR,CLEVELAND,OH 44115, USA. NR 10 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 NOV 15 PY 1990 VL 68 IS 10 BP 5033 EP 5035 DI 10.1063/1.347090 PG 3 WC Physics, Applied SC Physics GA EK043 UT WOS:A1990EK04300016 ER PT J AU ANICICH, VG SEN, AD HUNTRESS, WT MCEWAN, MJ AF ANICICH, VG SEN, AD HUNTRESS, WT MCEWAN, MJ TI ASSOCIATION REACTIONS AT LOW-PRESSURE .3. THE C2H2+/C2H2 SYSTEM SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 UNIV CANTERBURY,DEPT CHEM,CHRISTCHURCH 1,NEW ZEALAND. RP ANICICH, VG (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 25 TC 26 Z9 26 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 NOV 15 PY 1990 VL 93 IS 10 BP 7163 EP 7172 DI 10.1063/1.459440 PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100027 PM 11538368 ER PT J AU PARTRIDGE, H LANGHOFF, SR BAUSCHLICHER, CW AF PARTRIDGE, H LANGHOFF, SR BAUSCHLICHER, CW TI THEORETICAL-STUDY OF THE SPECTROSCOPY OF NO+ SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article RP PARTRIDGE, H (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 28 TC 23 Z9 23 U1 2 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 NOV 15 PY 1990 VL 93 IS 10 BP 7179 EP 7186 DI 10.1063/1.459716 PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EJ461 UT WOS:A1990EJ46100029 ER PT J AU MCCLAIN, CR ISHIZAKA, J HOFMANN, EE AF MCCLAIN, CR ISHIZAKA, J HOFMANN, EE TI ESTIMATION OF THE PROCESSES CONTROLLING VARIABILITY IN PHYTOPLANKTON PIGMENT DISTRIBUTIONS ON THE SOUTHEASTERN UNITED-STATES CONTINENTAL-SHELF SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article C1 TEXAS A&M UNIV SYST,DEPT OCEANOG,COLLEGE STN,TX 77843. RP MCCLAIN, CR (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HYDROSPHER PROC LAB,CODE 971,GREENBELT,MD 20771, USA. NR 32 TC 10 Z9 10 U1 0 U2 3 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD NOV 15 PY 1990 VL 95 IS C11 BP 20213 EP 20235 DI 10.1029/JC095iC11p20213 PG 23 WC Oceanography SC Oceanography GA EK497 UT WOS:A1990EK49700005 ER PT J AU ROOD, RB KAYE, JA DOUGLASS, AR ALLEN, DJ STEENROD, S LARSON, EM AF ROOD, RB KAYE, JA DOUGLASS, AR ALLEN, DJ STEENROD, S LARSON, EM TI WINTERTIME NITRIC-ACID CHEMISTRY - IMPLICATIONS FROM 3-DIMENSIONAL MODEL-CALCULATIONS SO JOURNAL OF THE ATMOSPHERIC SCIENCES LA English DT Article ID LIMB INFRARED MONITOR; ANTARCTIC OZONE DEPLETION; BREAKING PLANETARY-WAVES; CHLORINE NITRATE; HYDROGEN-CHLORIDE; STRATOSPHERIC CHEMISTRY; HETEROGENEOUS REACTIONS; NIMBUS-7 LIMS; ICE SURFACES; WATER-VAPOR AB A three-dimensional simulation of the evolution of HNO3 has been run for the winter of 1979. Winds and temperatures are taken from a stratospheric data assimilation analysis, and the chemistry is based on Limb Infrared Monitor of the Stratosphere (LIMS) observations. The model is compared to LIMS observations to investigate the problem of "missing" nitric acid chemistry in the winter hemisphere. Both the model and observations support the contention that a nitric acid source is needed outside of the polar vortex and north of the subtropics. Observations show that nitric acid and potential vorticity are uncorrelated in middle latitudes outside the polar vortex. This suggests that HNO3 is not dynamically controlled in middle latitudes. the model shows that given the time scales of conventional chemistry, dynamical control is expected. Therefore, an error exists in the conventional chemistry or additional processes are needed to bring the model and data into agreement. Since the polar vortex is dynamically isolated from the middle latitudes, and since the highest HNO3 values are observed in October and November, a source associated solely with polar stratospheric clouds cannot explain the deficiencies in the chemistry. The role of heterogeneous processes on background aerosols is reviewed in light of these results. C1 APPL RES CORP,LANDOVER,MD. RP ROOD, RB (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHER CHEM & DYNAM BRANCH,CODE 916,GREENBELT,MD 20771, USA. RI Allen, Dale/F-7168-2010; Douglass, Anne/D-4655-2012; Steenrod, Stephen/H-2218-2012; Rood, Richard/C-5611-2008 OI Allen, Dale/0000-0003-3305-9669; Rood, Richard/0000-0002-2310-4262 NR 51 TC 15 Z9 15 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0022-4928 J9 J ATMOS SCI JI J. Atmos. Sci. PD NOV 15 PY 1990 VL 47 IS 22 BP 2696 EP 2709 DI 10.1175/1520-0469(1990)047<2696:WNACIF>2.0.CO;2 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ510 UT WOS:A1990EQ51000006 ER PT J AU RESTER, AC BAMFORD, GJ COLDWELL, RL TROMBKA, JI AF RESTER, AC BAMFORD, GJ COLDWELL, RL TROMBKA, JI TI ACTIVATION OF BGO CRYSTALS WITH 1.5 GEV PROTONS SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article AB A cylindrical bismuth germanate (BGO) detector (7.5 cm diameter x 7.5 cm long) and a cylindrical bare crystal of BGO (2.5 cm diameter x 2.5 cm long) were exposed to a fluence of 1.1 x 10(8) protons cm-2 at 1.5 GeV energy, roughly equivalent to that expected on an interplanetary journey to Mars. No degradation in the energy resolution or counting efficiency of the BGO detector was observed, although the background continuum increased significantly. Events emanating from the bare crystal were counted externally with a high-resolution germanium detector. The activation lines identified were compared to a spectrum from an externally counted BGO detector taken on a high-altitude balloon flight over Antarctica. C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP RESTER, AC (reprint author), UNIV FLORIDA,INST ASTROPHYS & PLANETARY EXPLORAT,1 PROGRESS BLVD,BOX 33,ALACHUA,FL 32615, USA. NR 4 TC 4 Z9 4 U1 1 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 NOV 15 PY 1990 VL 297 IS 1-2 BP 258 EP 267 DI 10.1016/0168-9002(90)91374-K PG 10 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA ER731 UT WOS:A1990ER73100030 ER PT J AU PINES, V ZLATKOWSKI, M CHAIT, A AF PINES, V ZLATKOWSKI, M CHAIT, A TI TIME DEVELOPMENT OF A PERTURBED-SPHERICAL NUCLEUS IN A PURE SUPERCOOLED LIQUID .1. POWER-LAW GROWTH OF MORPHOLOGICAL INSTABILITIES SO PHYSICAL REVIEW A LA English DT Article RP PINES, V (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 45 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 1050-2947 J9 PHYS REV A JI Phys. Rev. A PD NOV 15 PY 1990 VL 42 IS 10 BP 6129 EP 6136 DI 10.1103/PhysRevA.42.6129 PG 8 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EJ421 UT WOS:A1990EJ42100036 ER PT J AU PINES, V ZLATKOWSKI, M CHAIT, A AF PINES, V ZLATKOWSKI, M CHAIT, A TI TIME DEVELOPMENT OF A PERTURBED-SPHERICAL NUCLEUS IN A PURE SUPERCOOLED LIQUID .2. NONLINEAR DEVELOPMENT SO PHYSICAL REVIEW A LA English DT Article RP PINES, V (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 15 TC 7 Z9 7 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 NOV 15 PY 1990 VL 42 IS 10 BP 6137 EP 6150 DI 10.1103/PhysRevA.42.6137 PG 14 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EJ421 UT WOS:A1990EJ42100037 ER PT J AU BURROWS, A RESSELL, MT TURNER, MS AF BURROWS, A RESSELL, MT TURNER, MS TI AXIONS AND SN-1987A - AXION TRAPPING SO PHYSICAL REVIEW D LA English DT Article C1 UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. FERMI NATL ACCELERATOR CTR,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS,CHICAGO,IL 60637. RP BURROWS, A (reprint author), UNIV ARIZONA,DEPT PHYS & ASTRON,TUCSON,AZ 85721, USA. NR 57 TC 53 Z9 53 U1 0 U2 2 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 NOV 15 PY 1990 VL 42 IS 10 BP 3297 EP 3309 DI 10.1103/PhysRevD.42.3297 PG 13 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EH744 UT WOS:A1990EH74400003 ER PT J AU KAMIONKOWSKI, M TURNER, MS AF KAMIONKOWSKI, M TURNER, MS TI THERMAL RELICS - DO WE KNOW THEIR ABUNDANCES SO PHYSICAL REVIEW D LA English DT Article C1 FERMI NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. RP KAMIONKOWSKI, M (reprint author), UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS,CHICAGO,IL 60637, USA. NR 56 TC 125 Z9 125 U1 0 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 NOV 15 PY 1990 VL 42 IS 10 BP 3310 EP 3320 DI 10.1103/PhysRevD.42.3310 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EH744 UT WOS:A1990EH74400004 ER PT J AU HARVEY, JA TURNER, MS AF HARVEY, JA TURNER, MS TI COSMOLOGICAL BARYON AND LEPTON NUMBER IN THE PRESENCE OF ELECTROWEAK FERMION-NUMBER VIOLATION SO PHYSICAL REVIEW D LA English DT Article C1 UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. FERMI NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. RP HARVEY, JA (reprint author), UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS,CHICAGO,IL 60637, USA. NR 20 TC 493 Z9 493 U1 1 U2 2 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 NOV 15 PY 1990 VL 42 IS 10 BP 3344 EP 3349 DI 10.1103/PhysRevD.42.3344 PG 6 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EH744 UT WOS:A1990EH74400008 ER PT J AU TURNER, MS AF TURNER, MS TI PERIODIC SIGNATURES FOR THE DETECTION OF COSMIC AXIONS SO PHYSICAL REVIEW D LA English DT Note C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS,CHICAGO,IL 60637. UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP TURNER, MS (reprint author), FERMI NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510, USA. NR 24 TC 18 Z9 18 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 NOV 15 PY 1990 VL 42 IS 10 BP 3572 EP 3575 DI 10.1103/PhysRevD.42.3572 PG 4 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EH744 UT WOS:A1990EH74400035 ER PT J AU KIM, JH LANG, RJ LARSSON, A LEE, LP NARAYANAN, AA AF KIM, JH LANG, RJ LARSSON, A LEE, LP NARAYANAN, AA TI HIGH-POWER ALGAAS-GAAS SINGLE QUANTUM-WELL SURFACE-EMITTING LASERS WITH INTEGRATED 45-DEGREES BEAM DEFLECTORS SO APPLIED PHYSICS LETTERS LA English DT Article C1 TRW CO INC,DIV APPL TECHNOL,SPACE & TECHNOL GRP,REDONDO BEACH,CA 90278. HUGHES RES LABS,MALIBU,CA 90265. RP KIM, JH (reprint author), CALTECH,JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,PASADENA,CA 91109, USA. RI Larsson, Anders/P-7275-2015 OI Larsson, Anders/0000-0002-0912-7695 NR 20 TC 5 Z9 5 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD NOV 12 PY 1990 VL 57 IS 20 BP 2048 EP 2050 DI 10.1063/1.103937 PG 3 WC Physics, Applied SC Physics GA EH539 UT WOS:A1990EH53900002 ER PT J AU MITCHELL, GF MAILLARD, JP ALLEN, M BEER, R BELCOURT, K AF MITCHELL, GF MAILLARD, JP ALLEN, M BEER, R BELCOURT, K TI HOT AND COLD GAS TOWARD YOUNG STELLAR OBJECTS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 INST ASTROPHYS,F-75014 PARIS,FRANCE. CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,PASADENA,CA 91109. CANADA FRANCE HAWAII TELESCOPE CORP,WAIMEA,HI. RP MITCHELL, GF (reprint author), ST MARYS UNIV,DEPT ASTRON,HALIFAX B3H 3C3,NS,CANADA. NR 43 TC 113 Z9 113 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 NOV 10 PY 1990 VL 363 IS 2 BP 554 EP 573 DI 10.1086/169365 PN 1 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EE918 UT WOS:A1990EE91800019 ER PT J AU CHAO, BF AF CHAO, BF TI A NEW METHOD OF SPECTRAL-ANALYSIS AND ITS APPLICATION TO THE EARTHS FREE OSCILLATIONS - THE SOMPI METHOD SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Note RP CHAO, BF (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GEODYNAM BRANCH,CODE 921,GREENBELT,MD 20771, USA. RI Chao, Benjamin Fong/N-6156-2013 NR 4 TC 4 Z9 4 U1 0 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD NOV 10 PY 1990 VL 95 IS B12 BP 19789 EP 19790 DI 10.1029/JB095iB12p19789 PG 2 WC Geosciences, Multidisciplinary SC Geology GA EH869 UT WOS:A1990EH86900042 ER PT J AU COHEN, SC CHINN, DS DUNN, PJ AF COHEN, SC CHINN, DS DUNN, PJ TI GEOSCIENCE LASER RANGING SYSTEM - ESTIMATED ACCURACY OF GEODETIC PARAMETERS AND THEIR DEPENDENCE ON SYSTEM CHARACTERISTICS SO JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS LA English DT Article C1 ST SYST CORP,LANHAM,MD 20801. RP COHEN, SC (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 921,GREENBELT,MD 20771, USA. NR 15 TC 3 Z9 3 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-SOLID PD NOV 10 PY 1990 VL 95 IS B12 BP 19811 EP 19819 DI 10.1029/JB095iB12p19811 PG 9 WC Geosciences, Multidisciplinary SC Geology GA EH869 UT WOS:A1990EH86900045 ER PT J AU CISOWSKI, SM DUNN, JR FULLER, M WASILEWSKI, PJ AF CISOWSKI, SM DUNN, JR FULLER, M WASILEWSKI, PJ TI NRM-IRM(S) DEMAGNETIZATION PLOTS OF INTRUSIVE ROCKS AND THE ORIGIN OF THEIR NRM SO TECTONOPHYSICS LA English DT Article; Proceedings Paper CT MEETING OF THE INTERNATIONAL ASSOC OF GEOMAGNETISM AND AERONOMY CY AUG, 1989 CL EXETER, ENGLAND SP INT ASSOC GEOMAGNETISM & AERON C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP CISOWSKI, SM (reprint author), UNIV CALIF SANTA BARBARA,DEPT GEOL SCI,SANTA BARBARA,CA 93106, USA. NR 23 TC 17 Z9 17 U1 0 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0040-1951 J9 TECTONOPHYSICS JI Tectonophysics PD NOV 10 PY 1990 VL 184 IS 1 BP 35 EP 54 DI 10.1016/0040-1951(90)90119-S PG 20 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EG679 UT WOS:A1990EG67900005 ER PT J AU MICKENS, RE SHOOSMITH, JN AF MICKENS, RE SHOOSMITH, JN TI A DISCRETE MODEL OF A MODIFIED BURGERS PARTIAL-DIFFERENTIAL EQUATION SO JOURNAL OF SOUND AND VIBRATION LA English DT Letter C1 COLL WILLIAM & MARY,DEPT MATH,WILLIAMSBURG,VA 23187. NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP MICKENS, RE (reprint author), CLARK ATLANTA UNIV,DEPT PHYS,ATLANTA,GA 30314, USA. NR 11 TC 4 Z9 4 U1 0 U2 1 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-460X J9 J SOUND VIB JI J. Sound Vibr. PD NOV 8 PY 1990 VL 142 IS 3 BP 536 EP 539 DI 10.1016/0022-460X(90)90669-Q PG 4 WC Acoustics; Engineering, Mechanical; Mechanics SC Acoustics; Engineering; Mechanics GA EJ075 UT WOS:A1990EJ07500014 ER PT J AU ZAHNLE, K GRINSPOON, D AF ZAHNLE, K GRINSPOON, D TI COMET DUST AS A SOURCE OF AMINO-ACIDS AT THE CRETACEOUS TERTIARY BOUNDARY SO NATURE LA English DT Article RP ZAHNLE, K (reprint author), NASA,AMES RES CTR,MS 245-3,MOFFETT FIELD,CA 94035, USA. NR 28 TC 56 Z9 56 U1 0 U2 1 PU MACMILLAN MAGAZINES LTD PI LONDON PA 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R 3LF SN 0028-0836 J9 NATURE JI Nature PD NOV 8 PY 1990 VL 348 IS 6297 BP 157 EP 160 DI 10.1038/348157a0 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EG776 UT WOS:A1990EG77600054 PM 11536472 ER PT J AU BANERJEA, A SMITH, JR FERRANTE, J AF BANERJEA, A SMITH, JR FERRANTE, J TI UNIVERSAL ASPECTS OF ADHESION AND ATOMIC FORCE MICROSCOPY SO JOURNAL OF PHYSICS-CONDENSED MATTER LA English DT Letter C1 KENT STATE UNIV,DEPT PHYS,KENT,OH 44242. GM CORP,RES LABS,DEPT PHYS,WARREN,MI 48090. RP BANERJEA, A (reprint author), NASA,LEWIS RES CTR,21000 BROOKPARK RD,CLEVELAND,OH 44135, USA. NR 21 TC 22 Z9 22 U1 0 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0953-8984 J9 J PHYS-CONDENS MAT JI J. Phys.-Condes. Matter PD NOV 5 PY 1990 VL 2 IS 44 BP 8841 EP 8846 DI 10.1088/0953-8984/2/44/012 PG 6 WC Physics, Condensed Matter SC Physics GA EG836 UT WOS:A1990EG83600012 ER PT J AU ORIENT, OJ CHUTJIAN, A MURAD, E AF ORIENT, OJ CHUTJIAN, A MURAD, E TI REACTION AND ELECTRONIC EXCITATION IN CROSSED-BEAMS COLLISIONS OF LOW-ENERGY O(3P) ATOMS WITH H2O AND CO2 SO PHYSICAL REVIEW LETTERS LA English DT Article C1 GEOPHYS LAB,DIV SPACE PHYS,BEDFORD,MA 01731. RP ORIENT, OJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 20 TC 22 Z9 22 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 NOV 5 PY 1990 VL 65 IS 19 BP 2359 EP 2361 DI 10.1103/PhysRevLett.65.2359 PG 3 WC Physics, Multidisciplinary SC Physics GA EG397 UT WOS:A1990EG39700011 ER PT J AU OLIVER, BM AF OLIVER, BM TI METRIFICATION OVERSOLD SO SCIENCE LA English DT Letter RP OLIVER, BM (reprint author), NASA,AMES RES CTR,SEARCH EXTRATERR INTELLIGENCE OFF,MOFFETT FIELD,CA 94035, USA. NR 1 TC 2 Z9 2 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD NOV 2 PY 1990 VL 250 IS 4981 BP 611 EP 612 DI 10.1126/science.250.4981.611-a PG 2 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EF904 UT WOS:A1990EF90400003 ER PT J AU PILAND, WM TALAY, TA STONE, HW AF PILAND, WM TALAY, TA STONE, HW TI THE PERSONNEL LAUNCH SYSTEM SO AEROSPACE AMERICA LA English DT Article RP PILAND, WM (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0740-722X J9 AEROSPACE AM JI Aerosp. Am. PD NOV PY 1990 VL 28 IS 11 BP 18 EP 21 PG 4 WC Engineering, Aerospace SC Engineering GA EH888 UT WOS:A1990EH88800005 ER PT J AU BATINA, JT AF BATINA, JT TI VORTEX-DOMINATED CONICAL-FLOW COMPUTATIONS USING UNSTRUCTURED ADAPTIVELY-REFINED MESHES SO AIAA JOURNAL LA English DT Article RP BATINA, JT (reprint author), NASA,LANGLEY RES CTR,DIV STRUCT DYNAM,UNSTEADY AERODYNAM BRANCH,HAMPTON,VA 23665, USA. NR 15 TC 1 Z9 1 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD NOV PY 1990 VL 28 IS 11 BP 1925 EP 1932 DI 10.2514/3.10500 PG 8 WC Engineering, Aerospace SC Engineering GA EN074 UT WOS:A1990EN07400011 ER PT J AU DUVAL, WMB JACQMIN, DA AF DUVAL, WMB JACQMIN, DA TI INTERFACIAL DYNAMICS OF 2 LIQUIDS UNDER AN OSCILLATING GRAVITATIONAL-FIELD SO AIAA JOURNAL LA English DT Article RP NASA, LEWIS RES CTR, CLEVELAND, OH 44135 USA. NR 20 TC 3 Z9 3 U1 0 U2 1 PU AMER INST AERONAUTICS ASTRONAUTICS PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA SN 0001-1452 EI 1533-385X J9 AIAA J JI AIAA J. PD NOV PY 1990 VL 28 IS 11 BP 1933 EP 1941 DI 10.2514/3.10501 PG 9 WC Engineering, Aerospace SC Engineering GA EN074 UT WOS:A1990EN07400012 ER PT J AU KIM, SC AF KIM, SC TI NEW MIXING-LENGTH MODEL FOR SUPERSONIC SHEAR LAYERS SO AIAA JOURNAL LA English DT Note C1 SVERDRUP TECHNOL INC,ARNOLD AFB,TN. RP KIM, SC (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 6 TC 7 Z9 7 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD NOV PY 1990 VL 28 IS 11 BP 1999 EP 2000 DI 10.2514/3.10512 PG 2 WC Engineering, Aerospace SC Engineering GA EN074 UT WOS:A1990EN07400023 ER PT J AU JOHNSON, DA COAKLEY, TJ AF JOHNSON, DA COAKLEY, TJ TI IMPROVEMENTS TO A NONEQUILIBRIUM ALGEBRAIC TURBULENCE MODEL SO AIAA JOURNAL LA English DT Note RP JOHNSON, DA (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 9 TC 22 Z9 22 U1 1 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD NOV PY 1990 VL 28 IS 11 BP 2000 EP 2003 DI 10.2514/3.10513 PG 4 WC Engineering, Aerospace SC Engineering GA EN074 UT WOS:A1990EN07400024 ER PT J AU BIKLE, DD HALLORAN, BP MCGALLIARDCONE, C MOREYHOLTON, E AF BIKLE, DD HALLORAN, BP MCGALLIARDCONE, C MOREYHOLTON, E TI DIFFERENT RESPONSES OF TRABECULAR AND CORTICAL BONE TO 1,25(OH)2D3 INFUSION SO AMERICAN JOURNAL OF PHYSIOLOGY LA English DT Article C1 VET ADM MED CTR,SAN FRANCISCO,CA 94121. UNIV CALIF SAN FRANCISCO,SAN FRANCISCO,CA 94143. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 25 TC 5 Z9 5 U1 0 U2 0 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0002-9513 J9 AM J PHYSIOL JI Am. J. Physiol. PD NOV PY 1990 VL 259 IS 5 BP E715 EP E722 PN 1 PG 8 WC Physiology SC Physiology GA EJ481 UT WOS:A1990EJ48100034 PM 2240210 ER PT J AU DENNING, PJ AF DENNING, PJ TI MODELING REALITY SO AMERICAN SCIENTIST LA English DT Article RP DENNING, PJ (reprint author), NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035, USA. NR 15 TC 8 Z9 9 U1 0 U2 0 PU SIGMA XI-SCI RES SOC PI RES TRIANGLE PK PA PO BOX 13975, RES TRIANGLE PK, NC 27709 SN 0003-0996 J9 AM SCI JI Am. Scientist PD NOV-DEC PY 1990 VL 78 IS 6 BP 495 EP 498 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EP568 UT WOS:A1990EP56800014 ER PT J AU HERGENROTHER, PM AF HERGENROTHER, PM TI PERSPECTIVES IN THE DEVELOPMENT OF HIGH-TEMPERATURE POLYMERS SO ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH LA English DT Review ID PARA-AROMATIC POLYMERS; RIGID-ROD POLYMERS; THERMAL-PROPERTIES; MAIN CHAIN; POLYIMIDES; UNITS AB Research on high-temperature organic polymers was initiated in the late 1950s primarily to meet the needs of the aerospace and electronics industry. Since then, many different heat-resistant polymer systems have been reported, of which several are now commercially available. These polymers are used in many diverse applications such as circuitry in microelectronic components, coatings on cookware, binders in brake systems, sealants for fuel tanks in high-speed aircraft, gears in copying machines, structural components in high-speed aircraft, and space vehicles, films and wire coatings for electrical insulation. Worldwide use for high-temperature polymers in 1988 was estimated at 90 million kilograms with a value fo $2.3 billion. This market is expected to double by the end of this decade. The major polymer classes discussed in the present paper are polyimides and poly(aryl ethers). RP HERGENROTHER, PM (reprint author), NASA,LANGLEY RES CTR,DIV MAT,HAMPTON,VA 23665, USA. NR 73 TC 38 Z9 43 U1 3 U2 19 PU VCH PUBLISHERS INC PI DEERFIELD BEACH PA 303 NW 12TH AVE, DEERFIELD BEACH, FL 33442-1788 SN 0570-0833 J9 ANGEW CHEM INT EDIT JI Angew. Chem.-Int. Edit. Engl. PD NOV PY 1990 VL 29 IS 11 BP 1262 EP 1268 DI 10.1002/anie.199012621 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA EP910 UT WOS:A1990EP91000010 ER PT J AU KESKIKUHA, RAM THOMAS, RJ GUM, JS CONDOR, CE AF KESKIKUHA, RAM THOMAS, RJ GUM, JS CONDOR, CE TI PERFORMANCE OF MULTILAYER COATED DIFFRACTION GRATINGS IN THE EUV SO APPLIED OPTICS LA English DT Note RP KESKIKUHA, RAM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 19 TC 9 Z9 9 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 1 PY 1990 VL 29 IS 31 BP 4529 EP 4531 PG 3 WC Optics SC Optics GA EJ483 UT WOS:A1990EJ48300003 PM 20577421 ER PT J AU MCDERMID, IS GODIN, SM LINDQVIST, LO WALSH, TD BURRIS, J BUTLER, J FERRARE, R WHITEMAN, D MCGEE, TJ AF MCDERMID, IS GODIN, SM LINDQVIST, LO WALSH, TD BURRIS, J BUTLER, J FERRARE, R WHITEMAN, D MCGEE, TJ TI MEASUREMENT INTERCOMPARISON OF THE JPL AND GSFC STRATOSPHERIC OZONE LIDAR SYSTEMS SO APPLIED OPTICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,OCEANS LAB,GREENBELT,MD 20771. SANTE FE ENERGY RES CORP,SANTA FE,NM 87501. ST SYST CORP,LANHAM,MD 20706. JET PROP LAB,TABLE MT FACIL,WRIGHTWOOD,CA 92397. RP MCDERMID, IS (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771, USA. RI McGee, Thomas/G-4951-2013; Butler, James/D-4188-2013 NR 23 TC 8 Z9 8 U1 0 U2 2 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD NOV 1 PY 1990 VL 29 IS 31 BP 4671 EP 4676 PG 6 WC Optics SC Optics GA EJ483 UT WOS:A1990EJ48300032 PM 20577450 ER PT J AU HAKIM, MB WOODGATE, BE AF HAKIM, MB WOODGATE, BE TI CURVED CRYSTAL ANALYSIS USING A TRIPLE-CRYSTAL X-RAY SPECTROMETER SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP HAKIM, MB (reprint author), ST SYST CORP,4400 FORBES BLVD,LANHAM,MD 20706, USA. RI Woodgate, Bruce/D-2970-2012 NR 12 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0947-8396 J9 APPL PHYS A-MATER JI Appl. Phys. A-Mater. Sci. Process. PD NOV PY 1990 VL 51 IS 5 BP 369 EP 373 DI 10.1007/BF00348374 PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA EF431 UT WOS:A1990EF43100002 ER PT J AU NEFF, SG HUTCHINGS, JB AF NEFF, SG HUTCHINGS, JB TI EVOLUTION OF RADIO QUASARS FROM REDSHIFT 0.6-3.7 SO ASTRONOMICAL JOURNAL LA English DT Article C1 NATL RES COUNCIL CANADA,DOMINION ASTROPHYS OBSERV,VICTORIA V8X 4M6,BC,CANADA. RP NEFF, SG (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 11 TC 43 Z9 43 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD NOV PY 1990 VL 100 IS 5 BP 1441 EP 1451 DI 10.1086/115608 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EF667 UT WOS:A1990EF66700005 ER PT J AU WHITMORE, BC LUCAS, RA MCELROY, DB STEIMANCAMERON, TY SACKETT, PD OLLING, RP AF WHITMORE, BC LUCAS, RA MCELROY, DB STEIMANCAMERON, TY SACKETT, PD OLLING, RP TI NEW OBSERVATIONS AND A PHOTOGRAPHIC ATLAS OF POLAR-RING GALAXIES SO ASTRONOMICAL JOURNAL LA English DT Article C1 UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. STATE UNIV GRONINGEN,KAPETYN ASTRON INST,9700 AB GRONINGEN,NETHERLANDS. UNIV PITTSBURGH,PITTSBURGH,PA 15260. COLUMBIA UNIV,DEPT ASTRON,NEW YORK,NY 10027. RP WHITMORE, BC (reprint author), SPACE TELESCOPE SCI INST,3700 SAN MARTIN DR,BALTIMORE,MD 21218, USA. NR 104 TC 246 Z9 252 U1 0 U2 2 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD NOV PY 1990 VL 100 IS 5 BP 1489 EP & DI 10.1086/115614 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EF667 UT WOS:A1990EF66700011 ER PT J AU STERN, SA FESTOU, MC VANSANTVOORT, J BURATTI, BJ AF STERN, SA FESTOU, MC VANSANTVOORT, J BURATTI, BJ TI THE 1ST UV SPECTRUM OF A URANIAN SATELLITE - IUE OBSERVATIONS OF OBERON FROM 2650-3200-A SO ASTRONOMICAL JOURNAL LA English DT Article C1 OBSERV MIDI PYRENEES,CNRS,URA 2B5,TOULOUSE,FRANCE. IUE OBSERV,MADRID,SPAIN. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP STERN, SA (reprint author), UNIV COLORADO,BOULDER,CO 80309, USA. NR 27 TC 2 Z9 2 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD NOV PY 1990 VL 100 IS 5 BP 1676 EP 1679 DI 10.1086/115627 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EF667 UT WOS:A1990EF66700024 ER PT J AU SHAO, M COLAVITA, MM HINES, BE HERSHEY, JL HUGHES, JA HUTTER, DJ KAPLAN, GH JOHNSTON, KJ MOZURKEWICH, D SIMON, RS PAN, XP AF SHAO, M COLAVITA, MM HINES, BE HERSHEY, JL HUGHES, JA HUTTER, DJ KAPLAN, GH JOHNSTON, KJ MOZURKEWICH, D SIMON, RS PAN, XP TI WIDE-ANGLE ASTROMETRY WITH THE MARK-III STELLAR INTERFEROMETER SO ASTRONOMICAL JOURNAL LA English DT Article C1 USN OBSERV,WASHINGTON,DC 20392. USN,RES LAB,CTR ADV SPACE SENSING,WASHINGTON,DC 20375. CALTECH,DEPT ASTRON,PASADENA,CA 91125. HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138. MIT,CAMBRIDGE,MA 02139. USN,RES LAB,EO HULBURT CTR SPACE RES,WASHINGTON,DC 20375. RP SHAO, M (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 5 TC 24 Z9 24 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD NOV PY 1990 VL 100 IS 5 BP 1701 EP 1711 DI 10.1086/115630 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EF667 UT WOS:A1990EF66700027 ER PT J AU LEVISON, HF DUNCAN, MJ SMITH, BF AF LEVISON, HF DUNCAN, MJ SMITH, BF TI DYNAMIC INSTABILITIES IN AXISYMMETRICAL STELLAR-SYSTEMS .1. OBLATE E6-MODELS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 QUEENS UNIV,DEPT PHYS,KINGSTON K7L 3N6,ONTARIO,CANADA. NASA,AMES RES CTR,THEORET STUDIES BRANCH,MOFFETT FIELD,CA 94035. RP LEVISON, HF (reprint author), USN OBSERV,FLAGSTAFF STN,POB 1149,FLAGSTAFF,AZ 86002, USA. NR 27 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 NOV 1 PY 1990 VL 363 IS 1 BP 66 EP 78 DI 10.1086/169320 PN 1 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED626 UT WOS:A1990ED62600007 ER PT J AU BOHLIN, RC CORNETT, RH HILL, JK STECHER, TP AF BOHLIN, RC CORNETT, RH HILL, JK STECHER, TP TI IMAGES IN THE ROCKET ULTRAVIOLET - YOUNG CLUSTERS IN H-II REGIONS OF M83 SO ASTROPHYSICAL JOURNAL LA English DT Article C1 ST SYST CORP,LANHAM,MD 20706. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP BOHLIN, RC (reprint author), SPACE TELESCOPE SCI INST,HOMEWOOD CAMPUS,BALTIMORE,MD 21218, USA. NR 25 TC 12 Z9 12 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 NOV 1 PY 1990 VL 363 IS 1 BP 154 EP & DI 10.1086/169325 PN 1 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED626 UT WOS:A1990ED62600012 ER PT J AU RICHARDSON, IG REAMES, DV WENZEL, KP RODRIGUEZPACHECO, J AF RICHARDSON, IG REAMES, DV WENZEL, KP RODRIGUEZPACHECO, J TI QUIET-TIME PROPERTIES OF LOW-ENERGY (LESS-THAN-10 MEV PER NUCLEON) INTERPLANETARY IONS DURING SOLAR MAXIMUM AND SOLAR MINIMUM SO ASTROPHYSICAL JOURNAL LA English DT Article C1 EUROPEAN SPACE AGCY,EUROPEAN SPACE RES & TECHNOL CTR,DEPT SPACE SCI,2200 AG NOORDWIJK,NETHERLANDS. RP RICHARDSON, IG (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771, USA. NR 18 TC 24 Z9 24 U1 0 U2 3 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD NOV 1 PY 1990 VL 363 IS 1 BP L9 EP L12 DI 10.1086/185853 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED629 UT WOS:A1990ED62900003 ER PT J AU ZDZIARSKI, AA GHISELLINI, G GEORGE, IM SVENSSON, R FABIAN, AC DONE, C AF ZDZIARSKI, AA GHISELLINI, G GEORGE, IM SVENSSON, R FABIAN, AC DONE, C TI ELECTRON-POSITRON PAIRS, COMPTON REFLECTION, AND THE X-RAY-SPECTRA OF ACTIVE GALACTIC NUCLEI SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. OSSERV ASTRON TORINO,I-10025 PINO TORINESE,ITALY. NORDITA,DK-2100 COPENHAGEN,DENMARK. RP ZDZIARSKI, AA (reprint author), SPACE TELESCOPE SCI INST,3700 SAN MARTIN DR,BALTIMORE,MD 21218, USA. RI done, chris/D-4605-2016 OI done, chris/0000-0002-1065-7239 NR 34 TC 86 Z9 86 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 NOV 1 PY 1990 VL 363 IS 1 BP L1 EP L4 DI 10.1086/185851 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA ED629 UT WOS:A1990ED62900001 ER PT J AU GOORVITCH, D AF GOORVITCH, D TI THE C-2 BALLIK-RAMSAY TRANSITIONS IN CARBON STARS SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES LA English DT Article RP GOORVITCH, D (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MAIL STOP N245-6,MOFFETT FIELD,CA 94035, USA. NR 32 TC 10 Z9 10 U1 0 U2 1 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0067-0049 J9 ASTROPHYS J SUPPL S JI Astrophys. J. Suppl. Ser. PD NOV PY 1990 VL 74 IS 3 BP 769 EP 783 DI 10.1086/191517 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EG884 UT WOS:A1990EG88400005 ER PT J AU QUINTANA, H WHITE, RA AF QUINTANA, H WHITE, RA TI A PARTIAL LIST OF SOUTHERN CLUSTERS OF GALAXIES SO ASTROPHYSICS AND SPACE SCIENCE LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP QUINTANA, H (reprint author), CATHOLIC UNIV CHILE,ASTROPHYS GRP,SANTIAGO,CHILE. NR 13 TC 6 Z9 6 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0004-640X J9 ASTROPHYS SPACE SCI JI Astrophys. Space Sci. PD NOV PY 1990 VL 173 IS 2 BP 265 EP 292 DI 10.1007/BF00643936 PG 28 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL525 UT WOS:A1990EL52500008 ER PT J AU CUNNINGHAM, HA WELCH, RB AF CUNNINGHAM, HA WELCH, RB TI THE CONCURRENT ACQUISITION OF FAMILIAR AND REARRANGED SENSORIMOTOR MAPS SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1990 VL 28 IS 6 BP 484 EP 484 PG 1 WC Psychology, Mathematical SC Psychology GA EC293 UT WOS:A1990EC29300062 ER PT J AU THARP, GK ELLIS, SR AF THARP, GK ELLIS, SR TI ADAPTIVE-CHANGES IN EXOCENTRIC DIRECTION ESTIMATES ASSOCIATED WITH ERROR FEEDBACK SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 UNIV CALIF BERKELEY,BERKELEY,CA 94720. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1990 VL 28 IS 6 BP 488 EP 488 PG 1 WC Psychology, Mathematical SC Psychology GA EC293 UT WOS:A1990EC29300106 ER PT J AU KAISER, MK PROFFITT, DR MCAFEE, EA AF KAISER, MK PROFFITT, DR MCAFEE, EA TI SEEING BEYOND THE OBVIOUS - UNDERSTANDING PERCEPTION IN EVERYDAY AND NOVEL ENVIRONMENTS SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. UNIV VIRGINIA,CHARLOTTESVILLE,VA 22903. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1990 VL 28 IS 6 BP 499 EP 499 PG 1 WC Psychology, Mathematical SC Psychology GA EC293 UT WOS:A1990EC29300236 ER PT J AU NEMIRE, K COHEN, MM AF NEMIRE, K COHEN, MM TI OPTIC AND SOMATIC CONTRIBUTIONS TO BODY ORIENTATION IN THE PITCH DIMENSION SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1990 VL 28 IS 6 BP 517 EP 517 PG 1 WC Psychology, Mathematical SC Psychology GA EC293 UT WOS:A1990EC29300441 ER PT J AU JOHNSTON, JC YANTIS, S AF JOHNSTON, JC YANTIS, S TI FAILURE TO PROCESS UNATTENDED OBJECTS - THE SEARCH FOR BOUNDARY-CONDITIONS SO BULLETIN OF THE PSYCHONOMIC SOCIETY LA English DT Meeting Abstract C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RI Yantis, Steven/A-7488-2009 NR 0 TC 0 Z9 0 U1 0 U2 0 PU PSYCHONOMIC SOC INC PI AUSTIN PA 1710 FORTVIEW RD, AUSTIN, TX 78704 SN 0090-5054 J9 B PSYCHONOMIC SOC PD NOV PY 1990 VL 28 IS 6 BP 525 EP 525 PG 1 WC Psychology, Mathematical SC Psychology GA EC293 UT WOS:A1990EC29300523 ER PT J AU MARDER, SR PERRY, JW TIEMANN, BG MARSH, RE SCHAEFER, WP AF MARDER, SR PERRY, JW TIEMANN, BG MARSH, RE SCHAEFER, WP TI 2ND-ORDER OPTICAL NONLINEARITIES AND PHOTOSTABILITIES OF 2-N-METHYLSTILBAZOLIUM SALTS SO CHEMISTRY OF MATERIALS LA English DT Review C1 CALTECH, JET PROP LAB, DIV CHEM & CHEM ENGN, PASADENA, CA 91109 USA. RP MARDER, SR (reprint author), CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. RI Perry, Joseph/B-7191-2011 OI Perry, Joseph/0000-0003-1101-7337 NR 23 TC 39 Z9 40 U1 0 U2 8 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 EI 1520-5002 J9 CHEM MATER JI Chem. Mat. PD NOV-DEC PY 1990 VL 2 IS 6 BP 685 EP 690 DI 10.1021/cm00012a017 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA EK629 UT WOS:A1990EK62900017 ER PT J AU TIEMANN, BG MARDER, SR PERRY, JW CHENG, LT AF TIEMANN, BG MARDER, SR PERRY, JW CHENG, LT TI MOLECULAR AND MACROSCOPIC 2ND-ORDER OPTICAL NONLINEARITIES OF SUBSTITUTED DINITROSTILBENES AND RELATED-COMPOUNDS SO CHEMISTRY OF MATERIALS LA English DT Review C1 CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. DUPONT CO-E12E, EXPTL STN, WILMINGTON, DE 19880 USA. RI Perry, Joseph/B-7191-2011 OI Perry, Joseph/0000-0003-1101-7337 NR 29 TC 23 Z9 23 U1 1 U2 5 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA SN 0897-4756 EI 1520-5002 J9 CHEM MATER JI Chem. Mat. PD NOV-DEC PY 1990 VL 2 IS 6 BP 690 EP 695 DI 10.1021/cm00012a018 PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary SC Chemistry; Materials Science GA EK629 UT WOS:A1990EK62900018 ER PT J AU OBRIEN, TK AF OBRIEN, TK TI ASTM 3RD SYMPOSIUM ON COMPOSITE-MATERIALS - FATIGUE AND FRACTURE - ORLANDO, FL, USA, 6-7 NOVEMBER 1989 SO COMPOSITES LA English DT Editorial Material RP OBRIEN, TK (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0010-4361 J9 COMPOSITES JI Composites PD NOV PY 1990 VL 21 IS 6 BP 537 EP 540 PG 4 WC Materials Science, Composites SC Materials Science GA EH291 UT WOS:A1990EH29100009 ER PT J AU MITTLEFEHLDT, DW LINDSTROM, MM AF MITTLEFEHLDT, DW LINDSTROM, MM TI GEOCHEMISTRY AND GENESIS OF THE ANGRITES SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article C1 NASA,LYNDON B JOHNSON SPACE CTR,2 PLANETARY SCI BRANCH SN2,HOUSTON,TX 77058. RP MITTLEFEHLDT, DW (reprint author), LOCKHEED ENGN & SCI CO,2400 NASA RD 1,HOUSTON,TX 77058, USA. NR 62 TC 49 Z9 49 U1 3 U2 5 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0016-7037 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD NOV PY 1990 VL 54 IS 11 BP 3209 EP 3218 DI 10.1016/0016-7037(90)90135-8 PG 10 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EK126 UT WOS:A1990EK12600027 ER PT J AU ROCKEN, C KELECY, TM BORN, GH YOUNG, LE PURCELL, GH WOLF, SK AF ROCKEN, C KELECY, TM BORN, GH YOUNG, LE PURCELL, GH WOLF, SK TI MEASURING PRECISE SEA-LEVEL FROM A BUOY USING THE GLOBAL POSITIONING SYSTEM SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. UNIV COLORADO,CIRES,UNAVCO,BOULDER,CO 80309. RP ROCKEN, C (reprint author), UNIV COLORADO,CTR ASTRODYNAM RES,CB 431,BOULDER,CO 80309, USA. NR 9 TC 20 Z9 21 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 NOV PY 1990 VL 17 IS 12 BP 2145 EP 2148 DI 10.1029/GL017i012p02145 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100017 ER PT J AU MAY, RD WEBSTER, CR AF MAY, RD WEBSTER, CR TI LABORATORY MEASUREMENTS OF NO2 LINE PARAMETERS NEAR 1600 CM-1 FOR THE INTERPRETATION OF STRATOSPHERIC SPECTRA SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article RP MAY, RD (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 25 TC 15 Z9 15 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 NOV PY 1990 VL 17 IS 12 BP 2157 EP 2160 DI 10.1029/GL017i012p02157 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100020 ER PT J AU MURAD, E KNECHT, DJ VIERECK, RA PIKE, CP KOFSKY, IL TROWBRIDGE, CA RALL, DLA ASHLEY, G TWIST, L ELGIN, JB SETAYESH, A STAIR, AT BLAHA, JE AF MURAD, E KNECHT, DJ VIERECK, RA PIKE, CP KOFSKY, IL TROWBRIDGE, CA RALL, DLA ASHLEY, G TWIST, L ELGIN, JB SETAYESH, A STAIR, AT BLAHA, JE TI VISIBLE-LIGHT EMISSION EXCITED BY INTERACTION OF SPACE-SHUTTLE EXHAUST WITH THE ATMOSPHERE SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 TEXTRON INC,AVCO RES LAB,PUUNENE,HI 96784. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. SPECTRA SCI INC,BURLINGTON,MA 01803. PHOTOMETRICS INC,WOBURN,MA 01801. RADEX INC,BEDFORD,MA 01730. STAIR ASSOCIATES,BEDFORD,MA 01730. RP MURAD, E (reprint author), GEOPHYS LAB PHK,DIV SPACE PHYS,BEDFORD,MA 01731, USA. NR 19 TC 11 Z9 11 U1 0 U2 2 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 NOV PY 1990 VL 17 IS 12 BP 2205 EP 2208 DI 10.1029/GL017i012p02205 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100032 ER PT J AU WONG, HK GOLDSTEIN, ML AF WONG, HK GOLDSTEIN, ML TI A MECHANISM FOR BURSTY RADIO-EMISSION IN PLANETARY MAGNETOSPHERES SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP WONG, HK (reprint author), SW RES INST,DEPT SPACE SCI,SAN ANTONIO,TX 78284, USA. RI Goldstein, Melvyn/B-1724-2008 NR 15 TC 22 Z9 23 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 NOV PY 1990 VL 17 IS 12 BP 2229 EP 2232 DI 10.1029/GL017i012p02229 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100038 ER PT J AU ALLISON, M LUMETTA, JT AF ALLISON, M LUMETTA, JT TI A SIMPLE INERTIAL MODEL FOR NEPTUNE ZONAL CIRCULATION SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 COLUMBIA UNIV,DEPT PHYS,NEW YORK,NY 10027. RP ALLISON, M (reprint author), NASA,GODDARD INST SPACE STUDIES,2880 BROADWAY,NEW YORK,NY 10025, USA. NR 26 TC 4 Z9 4 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 NOV PY 1990 VL 17 IS 12 BP 2269 EP 2272 DI 10.1029/GL017i012p02269 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100048 ER PT J AU OSHEROVICH, VA GARCIA, HA AF OSHEROVICH, VA GARCIA, HA TI ELECTRIC-CURRENT IN A UNIPOLAR SUNSPOT WITH AN UNTWISTED FIELD SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 NOAA, SPACE ENVIRONM LAB, BOULDER, CO 80303 USA. RP NASA, GODDARD SPACE FLIGHT CTR, PLANETARY SYST BRANCH, GREENBELT, MD 20771 USA. NR 18 TC 4 Z9 4 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0094-8276 EI 1944-8007 J9 GEOPHYS RES LETT JI Geophys. Res. Lett. PD NOV PY 1990 VL 17 IS 12 BP 2273 EP 2276 DI 10.1029/GL017i012p02273 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EH621 UT WOS:A1990EH62100049 ER PT J AU DOBROVOLSKIS, AR AF DOBROVOLSKIS, AR TI TIDAL DISRUPTION OF SOLID BODIES SO ICARUS LA English DT Article RP NASA, AMES RES CTR, 245-3, MOFFETT FIELD, CA 94035 USA. NR 25 TC 50 Z9 50 U1 0 U2 0 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0019-1035 EI 1090-2643 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 24 EP 38 DI 10.1016/0019-1035(90)90175-9 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100002 ER PT J AU MAGALHAES, JA WEIR, AL CONRATH, BJ GIERASCH, PJ LEROY, SS AF MAGALHAES, JA WEIR, AL CONRATH, BJ GIERASCH, PJ LEROY, SS TI ZONAL MOTION AND STRUCTURE IN JUPITER UPPER TROPOSPHERE FROM VOYAGER INFRARED AND IMAGING OBSERVATIONS SO ICARUS LA English DT Article C1 CORNELL UNIV,DEPT ASTRON,ITHACA,NY 14853. NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. CALTECH,DEPT EARTH & PLANETARY SCI,PASADENA,CA 91125. RP MAGALHAES, JA (reprint author), STANFORD UNIV,CTR RADAR ASTRON,STANFORD,CA 94305, USA. NR 41 TC 38 Z9 38 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 39 EP 72 DI 10.1016/0019-1035(90)90176-A PG 34 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100003 ER PT J AU KOSTIUK, T ESPENAK, F ROMANI, P ZIPOY, D GOLDSTEIN, J AF KOSTIUK, T ESPENAK, F ROMANI, P ZIPOY, D GOLDSTEIN, J TI ETHANE ABUNDANCE ON NEPTUNE SO ICARUS LA English DT Article C1 SCI SYST & APPLICAT INC,SEABROOK,MD 20706. UNIV MARYLAND,ASTRON PROGRAM,COLLEGE PK,MD 20742. NATL AIR & SPACE MUSEUM,ASTROPHYS LAB,WASHINGTON,DC 20560. RP KOSTIUK, T (reprint author), NASA,GODDARD SPACE FLIGHT CTR,PLANETARY SYST BRANCH,EXTRATERR PHYS LAB,GREENBELT,MD 20771, USA. RI Romani, Paul/D-2729-2012; Kostiuk, Theodor/A-3077-2014 NR 23 TC 15 Z9 15 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 87 EP 96 DI 10.1016/0019-1035(90)90178-C PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100005 ER PT J AU JONES, TD LEBOFSKY, LA LEWIS, JS MARLEY, MS AF JONES, TD LEBOFSKY, LA LEWIS, JS MARLEY, MS TI THE COMPOSITION AND ORIGIN OF THE C, P, AND D ASTEROIDS - WATER AS A TRACER OF THERMAL EVOLUTION IN THE OUTER BELT SO ICARUS LA English DT Article C1 UNIV ARIZONA,DEPT PLANETARY SCI,LUNAR & PLANETARY LAB,TUCSON,AZ 85721. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP JONES, TD (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. RI Marley, Mark/I-4704-2013 NR 70 TC 188 Z9 188 U1 0 U2 7 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 172 EP 192 DI 10.1016/0019-1035(90)90184-B PG 21 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100011 ER PT J AU FANALE, FP SALVAIL, JR MATSON, DL BROWN, RH AF FANALE, FP SALVAIL, JR MATSON, DL BROWN, RH TI THE EFFECT OF VOLUME PHASE-CHANGES, MASS-TRANSPORT, SUNLIGHT PENETRATION, AND DENSIFICATION ON THE THERMAL REGIME OF ICY REGOLITHS SO ICARUS LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP FANALE, FP (reprint author), UNIV HAWAII,SCH OCEAN & EARTH SCI,DIV PLANETARY GEOSCI,2525 CORREA RD,HONOLULU,HI 96822, USA. NR 21 TC 20 Z9 20 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 193 EP 204 DI 10.1016/0019-1035(90)90185-C PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100012 ER PT J AU ROTHSCHILD, LJ AF ROTHSCHILD, LJ TI EARTH ANALOGS FOR MARTIAN LIFE - MICROBES IN EVAPORITES, A NEW MODEL SYSTEM FOR LIFE ON MARS SO ICARUS LA English DT Article RP ROTHSCHILD, LJ (reprint author), NASA,AMES RES CTR,SOLAR SYST EXPLORAT BRANCH,MAIL STOP 239-12,MOFFETT FIELD,CA 94035, USA. NR 101 TC 95 Z9 98 U1 2 U2 27 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0019-1035 J9 ICARUS JI Icarus PD NOV PY 1990 VL 88 IS 1 BP 246 EP 260 DI 10.1016/0019-1035(90)90188-F PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EJ701 UT WOS:A1990EJ70100015 PM 11538366 ER PT J AU CHEN, CC WIN, MZ AF CHEN, CC WIN, MZ TI FREQUENCY NOISE MEASUREMENT OF DIODE-PUMPED ND-YAG RING LASERS SO IEEE PHOTONICS TECHNOLOGY LETTERS LA English DT Article AB The combined frequency noise spectrum of two Lightwave Model 120-01A nonpolar ring oscillator lasers were measured by first heterodyne detecting the IF signal and then measuring the IF frequency noise using an RF frequency discriminator. The results indicated the presence of a 1/f2 noise component in the power spectral density of the frequency fluctuations between 1 and 1 kHz. 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Control PD NOV PY 1990 VL 35 IS 11 BP 1243 EP 1245 DI 10.1109/9.59811 PG 3 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA EE312 UT WOS:A1990EE31200008 ER PT J AU HANNAFORD, B AF HANNAFORD, B TI A NONLINEAR MODEL OF THE PHASIC DYNAMICS OF MUSCLE ACTIVATION SO IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 33 TC 17 Z9 17 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9294 J9 IEEE T BIO-MED ENG JI IEEE Trans. Biomed. Eng. PD NOV PY 1990 VL 37 IS 11 BP 1067 EP 1075 DI 10.1109/10.61032 PG 9 WC Engineering, Biomedical SC Engineering GA EL004 UT WOS:A1990EL00400005 PM 2276754 ER PT J AU NICOL, DM SALTZ, JH AF NICOL, DM SALTZ, JH TI AN ANALYSIS OF SCATTER DECOMPOSITION SO IEEE TRANSACTIONS ON COMPUTERS LA English DT Article C1 NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665. RP NICOL, DM (reprint author), COLL WILLIAM & MARY,DEPT COMP SCI,WILLIAMSBURG,VA 23185, USA. NR 17 TC 16 Z9 17 U1 0 U2 1 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 SN 0018-9340 J9 IEEE T COMPUT JI IEEE Trans. Comput. PD NOV PY 1990 VL 39 IS 11 BP 1337 EP 1345 DI 10.1109/12.61043 PG 9 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA EE120 UT WOS:A1990EE12000003 ER PT J AU PARSONS, CL MILLER, LS AF PARSONS, CL MILLER, LS TI A LABORATORY STUDY OF THE ELECTROMAGNETIC BIAS OF ROUGH-SURFACE SCATTERING BY WATER-WAVES SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article C1 CLEMSON UNIV,DEPT PHYS & ASTRON,CLEMSON,SC 29631. RP PARSONS, CL (reprint author), NASA,GODDARD SPACE FLIGHT CTR,WALLOPS FLIGHT FACIL,WALLOPS ISL,VA 23337, USA. NR 27 TC 2 Z9 2 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0196-2892 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD NOV PY 1990 VL 28 IS 6 BP 1001 EP 1011 DI 10.1109/36.62624 PG 11 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA ED907 UT WOS:A1990ED90700003 ER PT J AU MILLER, LS PARSONS, CL AF MILLER, LS PARSONS, CL TI ROUGH-SURFACE SCATTERING RESULTS BASED ON BANDPASS AUTOCORRELATION FORMS SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,WALLOPS FLIGHT FACIL,WALLOPS ISL,VA 23337. RP MILLER, LS (reprint author), CLEMSON UNIV,DEPT PHYS & ASTRON,CLEMSON,SC 29631, USA. NR 14 TC 7 Z9 7 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0196-2892 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD NOV PY 1990 VL 28 IS 6 BP 1017 EP 1021 DI 10.1109/36.62626 PG 5 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA ED907 UT WOS:A1990ED90700005 ER PT J AU BROWN, KE INIGO, RM JOHNSON, BW AF BROWN, KE INIGO, RM JOHNSON, BW TI DESIGN, IMPLEMENTATION, AND TESTING OF AN ADAPTABLE OPTIMAL CONTROLLER FOR AN ELECTRIC WHEELCHAIR SO IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS LA English DT Article; Proceedings Paper CT 1989 ANNUAL MEETING OF THE INDUSTRIAL APPLICATIONS SOC OF THE IEEE CY OCT 01-05, 1989 CL SAN DIEGO, CA SP IEEE, IND APPLICAT SOC C1 UNIV VIRGINIA,DEPT ELECT ENGN,CHARLOTTESVILLE,VA 22903. RP BROWN, KE (reprint author), NASA,LANGLEY RES CTR,ELECTR,MAIL STOP 488,HAMPTON,VA 23665, USA. NR 15 TC 19 Z9 19 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0093-9994 J9 IEEE T IND APPL JI IEEE Trans. Ind. Appl. PD NOV-DEC PY 1990 VL 26 IS 6 BP 1144 EP 1157 DI 10.1109/28.62401 PG 14 WC Engineering, Multidisciplinary; Engineering, Electrical & Electronic SC Engineering GA EM077 UT WOS:A1990EM07700026 ER PT J AU KUSIC, GL ALLEN, WH GHOLDSTON, EW BEACH, RF AF KUSIC, GL ALLEN, WH GHOLDSTON, EW BEACH, RF TI SECURITY FOR SPACE POWER-SYSTEMS SO IEEE TRANSACTIONS ON POWER SYSTEMS LA English DT Article; Proceedings Paper CT 1990 WINTER MEETING OF THE POWER ENGINEERING SOC OF THE IEEE CY FEB 04-08, 1990 CL ATLANTA, GA SP IEEE, POWER ENGN SOC, POWER SYST ENGN COMM C1 ROCKWELL INT CORP,ROCKETDYNE DIV,CANOGA PK,CA 91303. NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP KUSIC, GL (reprint author), UNIV PITTSBURGH,DEPT ELECT ENGN,PITTSBURGH,PA 15261, USA. NR 10 TC 1 Z9 1 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0885-8950 J9 IEEE T POWER SYST JI IEEE Trans. Power Syst. PD NOV PY 1990 VL 5 IS 4 BP 1068 EP 1075 DI 10.1109/59.99354 PG 8 WC Engineering, Electrical & Electronic SC Engineering GA EG423 UT WOS:A1990EG42300005 ER PT J AU PRESTAGE, JD JANIK, GR DICK, GJ MALEKI, L AF PRESTAGE, JD JANIK, GR DICK, GJ MALEKI, L TI LINEAR ION TRAP FOR 2ND-ORDER DOPPLER-SHIFT REDUCTION IN FREQUENCY STANDARD APPLICATIONS SO IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL LA English DT Article RP PRESTAGE, JD (reprint author), CALTECH,JET PROP LAB,TIME & FREQUENCY SYST RES GRP,4800 OAK GROVE DR,BLDG 298,PASADENA,CA 91109, USA. NR 11 TC 11 Z9 11 U1 0 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0885-3010 J9 IEEE T ULTRASON FERR JI IEEE Trans. Ultrason. Ferroelectr. Freq. Control PD NOV PY 1990 VL 37 IS 6 BP 535 EP 542 DI 10.1109/58.63110 PG 8 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA EH785 UT WOS:A1990EH78500008 PM 18285075 ER PT J AU SMITH, RCG CHOUDHURY, BJ AF SMITH, RCG CHOUDHURY, BJ TI RELATIONSHIP OF MULTISPECTRAL SATELLITE DATA TO LAND SURFACE EVAPORATION FROM THE AUSTRALIAN CONTINENT SO INTERNATIONAL JOURNAL OF REMOTE SENSING LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,HYDROL SCI BRANCH CODE 624,GREENBELT,MD 20771. NR 55 TC 15 Z9 15 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0143-1161 J9 INT J REMOTE SENS JI Int. J. Remote Sens. PD NOV PY 1990 VL 11 IS 11 BP 2069 EP 2088 PG 20 WC Remote Sensing; Imaging Science & Photographic Technology SC Remote Sensing; Imaging Science & Photographic Technology GA EH815 UT WOS:A1990EH81500007 ER PT J AU SMITH, RCG CHOUDHURY, BJ AF SMITH, RCG CHOUDHURY, BJ TI ON THE CORRELATION OF INDEXES OF VEGETATION AND SURFACE-TEMPERATURE OVER SOUTH-EASTERN AUSTRALIA SO INTERNATIONAL JOURNAL OF REMOTE SENSING LA English DT Letter C1 NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,HYDROL SCI BRANCH CODE 624,GREENBELT,MD 20771. NR 25 TC 29 Z9 29 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0143-1161 J9 INT J REMOTE SENS JI Int. J. Remote Sens. PD NOV PY 1990 VL 11 IS 11 BP 2113 EP 2120 PG 8 WC Remote Sensing; Imaging Science & Photographic Technology SC Remote Sensing; Imaging Science & Photographic Technology GA EH815 UT WOS:A1990EH81500010 ER PT J AU PHILLIPS, PS WAGGONER, EG AF PHILLIPS, PS WAGGONER, EG TI TRANSONIC WIND-TUNNEL WALL INTERFERENCE PREDICTION CODE SO JOURNAL OF AIRCRAFT LA English DT Article AB A SMALL-DISTURBANCE transonic wall interference prediction code capable of modeling solid, open, perforated, and slotted walls as well as slotted and solid walls with viscous effects has been developed. This code was developed by modifying the outer boundary conditions of an existing aerodynamic wing-body-pod-pylon-winglet (WBPPW) analysis code. Comparisons are presented at transonic flow conditions between computational results and experimental data for a wing alone in a solid-wall wind tunnel. RP PHILLIPS, PS (reprint author), NASA,LANGLEY RES CTR,DIV APPL AERODYNAM,TRANSON AERODYNAM BRANCH,HAMPTON,VA 23665, USA. NR 0 TC 1 Z9 1 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD NOV PY 1990 VL 27 IS 11 BP 915 EP 916 DI 10.2514/3.45959 PG 2 WC Engineering, Aerospace SC Engineering GA EY212 UT WOS:A1990EY21200002 ER PT J AU COPPENBARGER, RA WINGROVE, RC AF COPPENBARGER, RA WINGROVE, RC TI WIND MEASUREMENTS FROM 4 AIRLINERS IN 1988 DENVER MICROBURST SO JOURNAL OF AIRCRAFT LA English DT Article AB Flight and radar position records are analyzed to determine the winds encountered by four airliners that penetrated a microburst on approach to Denver's Stapleton International Airport on July 11, 1988. The four encounters provide information about the time-varying changes in the strength, size, and location of the microburst phenomenon. The results show significant expansion in the size of the microburst and indicate the presence of fluctuations in the internal wind velocity associated with multiple microburst cells. At its peak strength, as experienced by the second aircraft, the microburst produced a headwind-to-tailwind velocity change of 115 ft/s. It is shown that the developing wind patterns derived from the flight-data analysis are in general agreement with results derived from ground-based Doppler weather radar and from a numerical microburst simulation. The data from the four aircraft complement these other findings by providing a more detailed analysis of the microburst's internal wind environment. RP COPPENBARGER, RA (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0021-8669 J9 J AIRCRAFT JI J. Aircr. PD NOV PY 1990 VL 27 IS 11 BP 923 EP 928 DI 10.2514/3.45961 PG 6 WC Engineering, Aerospace SC Engineering GA EY212 UT WOS:A1990EY21200004 ER PT J AU HUCEK, RR ARDANUY, P KYLE, HL AF HUCEK, RR ARDANUY, P KYLE, HL TI THE CONSTRAINED INVERSION OF NIMBUS-7 WIDE FIELD-OF-VIEW RADIOMETER MEASUREMENTS FOR THE EARTH RADIATION BUDGET SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID DATA SET IMPROVEMENT; EL-NINO; DECONVOLUTION; ERB AB The results of a constrained, wide field-of-view (WFOV) radiometer measurement deconvolution are presented and compared against higher resolution results obtained from the Earth Radiation Budget (ERB) Experiment on the Nimbus-7 satellite and from the Earth Radiation Budget Experiment (ERBE). The method is applicable to both longwave and shortwave observations and is specifically designed to treat the problem of anisotropic reflection and emission at the top of the atmosphere (TOA), and low signal-to-noise ratios that arise regionally within the observation field. The latter occur, for example, near the earth's terminator where measured WFOV shortwave signals contain increasing percentages of instrument and modeling errors. Ridge regression and meridional smoothing are used to quell the resulting "local" instability and permit the recovery of a global solution. An optimized retrieval is obtained by tuning the constraints until the recovered solution matches, as well as possible, a known higher resolution product or, lacking that, until unacceptable features in the recovered field no longer appear. The latter approach leads to a set of weight factors that depend on the length of the sampling period and on the desired parameter field, but not on the calendar date. A 1-year study dataset, July 1983 through June 1984, as well as data for the individual months of April 1980 and 1985 have been processed using a preliminary version of these algorithms. Representative deconvolved fields of mean daily longwave flux and albedo are shown for monthly and 8-day inversion periods. When compared to ERB scanner data (April 1980) within 63-degrees of the equator, the WFOV deconvolved solution reduces the RMS error of the WFOV archived results by 31% for longwave flux and 10% for shortwave flux. When compared to the ERBE data of April 1985 over the same domain, error reductions of 25% and 5% are obtained, respectively, for the longwave and shortwave fluxes. C1 RES & DATA SYST CORP,GREENBELT,MD. NASA,GODDARD SPACE FLIGHT CTR,DIV SPACE DATA & COMP,GREENBELT,MD 20771. NR 21 TC 2 Z9 2 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD NOV PY 1990 VL 29 IS 11 BP 1085 EP 1103 DI 10.1175/1520-0450(1990)029<1085:TCIONW>2.0.CO;2 PG 19 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ725 UT WOS:A1990EQ72500001 ER PT J AU ATLAS, D ROSENFELD, D WOLFF, DB AF ATLAS, D ROSENFELD, D WOLFF, DB TI CLIMATOLOGICALLY TUNED REFLECTIVITY RAIN RATE RELATIONS AND LINKS TO AREA TIME INTEGRALS SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID RADAR CHARACTERISTICS; GATE AB Relations between either the point- or beam-averaged effective reflectivity, Z(e), and surface rain rate, R, are determined by a probability matching method similar to that of Calheiros and Zawadzki, and Rosenfeld. The cumulative density functions (CDF) of reflectivity and rain rate are matched at pairs of R(i), Z(i) which give the same percentile contribution. One obtains range dependent Z(e)-R relations by stratifying the Z(e) data by range. Truncation of the Z(e) distribution by too large a threshold causes the threshold rain rate retrieved from the radar data to exceed that in the matching gage distribution. Forcing a match between the mean rate measured by the gages and those retrieved by use of a set of trial Z(e)-R equations provides for the adjustment of the final Z(e)-R relation and compensates for the truncation. The radar retrieved CDFs of rain rate then replicate the CDF of gage measured rates nicely. In the case of GATE the probability matching scheme produces a Z(e)-R relation that agrees with the bias adjusted relation of Hudlow et al. when one accounts for the approximate inverse relation between the effective reflectivity and beamwidth. The range dependence of Z(e)-R manifests the slope of the vertical reflectivity profile with height and the usual decrease in beamfilling with range, and therefore depends upon storm type. The method also implicitly includes climatological variations of drop size distribution and rain rate with height due to a variety of physical factors. Because of the sensitivity of the Z(e)-R relation to beamwidth and viewing angle, it can not be transferred either to airborne or spaceborne radars. It it notable that the climatologically tuned Z(e)-R may be applied to smaller space-time domains than those for which they were developed as long as the PDF of Z(e) closely approximates that for which the relation was developed. This occurs in tropical regimes and elsewhere when the day-to-day storms resemble the climatically typical storm. This is the reason for the success of the area-time integral methods of Doneaud and Rosenfeld et al. C1 HEBREW UNIV JERUSALEM,JERUSALEM,ISRAEL. APPL RES CORP,LANDOVER,MD. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. CALTECH,JET PROP LAB,PASADENA,CA 91109. RI Rosenfeld, Daniel/F-6077-2016 OI Rosenfeld, Daniel/0000-0002-0784-7656 NR 34 TC 66 Z9 70 U1 0 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD NOV PY 1990 VL 29 IS 11 BP 1120 EP 1135 DI 10.1175/1520-0450(1990)029<1120:CTRRRR>2.0.CO;2 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ725 UT WOS:A1990EQ72500004 ER PT J AU ENGHETA, N BASSIRI, S AF ENGHETA, N BASSIRI, S TI CERENKOV RADIATION IN CHIRAL MEDIA SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP ENGHETA, N (reprint author), UNIV PENN,MOORE SCH ELECT ENGN,PHILADELPHIA,PA 19104, USA. NR 35 TC 11 Z9 11 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 NOV 1 PY 1990 VL 68 IS 9 BP 4393 EP 4398 DI 10.1063/1.346188 PG 6 WC Physics, Applied SC Physics GA EH222 UT WOS:A1990EH22200004 ER PT J AU FECHT, HJ PEREPEZKO, JH LEE, MC JOHNSON, WL AF FECHT, HJ PEREPEZKO, JH LEE, MC JOHNSON, WL TI THERMODYNAMIC PROPERTIES AND CRYSTALLIZATION KINETICS OF GLASS-FORMING UNDERCOOLED LIQUID AU-PB-SB ALLOYS SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 UNIV WISCONSIN, DEPT MAT SCI & ENGN, MADISON, WI 53706 USA. NASA HEADQUARTERS, MICROGRAV SCI & APPLICAT, WASHINGTON, DC 20546 USA. CALTECH, WM KECK LAB ENGN MAT, PASADENA, CA 91125 USA. RP FECHT, HJ (reprint author), UNIV AUGSBURG, INST PHYS, MEMMINGER STR 6, W-8900 AUGSBURG, GERMANY. NR 25 TC 48 Z9 52 U1 0 U2 2 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 NOV 1 PY 1990 VL 68 IS 9 BP 4494 EP 4502 DI 10.1063/1.346200 PG 9 WC Physics, Applied SC Physics GA EH222 UT WOS:A1990EH22200016 ER PT J AU LEE, TJ RENDELL, AP TAYLOR, PR AF LEE, TJ RENDELL, AP TAYLOR, PR TI VIBRATIONS IN SMALL MG CLUSTERS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 ELORET INST,PALO ALTO,CA 94303. RP LEE, TJ (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. RI Rendell, Alistair/A-4883-2008; Lee, Timothy/K-2838-2012 OI Rendell, Alistair/0000-0002-9445-0146; NR 19 TC 40 Z9 40 U1 1 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 NOV 1 PY 1990 VL 93 IS 9 BP 6636 EP 6641 DI 10.1063/1.458931 PG 6 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EG251 UT WOS:A1990EG25100051 ER PT J AU ROSSOW, WB LACIS, AA AF ROSSOW, WB LACIS, AA TI GLOBAL, SEASONAL CLOUD VARIATIONS FROM SATELLITE RADIANCE MEASUREMENTS .2. CLOUD PROPERTIES AND RADIATIVE EFFECTS SO JOURNAL OF CLIMATE LA English DT Article AB Global, daily, visible and infrared radiance measurements from the NOAA-5 Scanning Radiometer (SR) are analyzed for the months of January, April, July and October 1977 to infer cloud and surface radiative properties and their effects on the Earth and surface radiation budgets. The analysis makes use of several additional datasets to help isolate the cloud contributions. The cloud properties inferred from satellite data are found to be about as accurate as the validation datasets available from other sources, but significant improvements are needed for better diagnosis of cloud-radiative feedbacks. Consequently, advances in cloud retrievals from satellite data will be like "new measurements" that have no independent validation. Reconstruction of regional, monthly mean Earth radiation budgets (ERB) from cloud, atmosphere and surface data is also nearly as accurate as can be checked with summaries of other, more direct measurements; improvements require detailed intercomparisons at smaller space/time scales. Currently, there is no global dataset with which to validate the reconstructed surface radiation budget (SRB). Comparison of monthly, regional mean quantities with those simulated by the GISS climate GCM shows that the differences are only a little larger than the uncertainties in the results; thus, better data and more detailed comparisons will be needed to improve the GCMs. Despite important limitations in these results, several fundamental conclusions about the role of clouds in the radiation balance of Earth are apparent. 1) The magnitude of cloud property variations and their effects on radiation increase strongly with decreasing space/time scales, going from global, annual means to regional, monthly means; 2) Cloud properties are systematically different between land and ocean: oceans have larger cloud cover with somewhat larger optical thicknesses and lower cloud top altitudes; 3) Although cloud variations appear to be the primary cause of regional radiation budget variability at 5-30 day time scales, the effects of their seasonal variations at larger spatial scales are less important than the changes associated with changes in solar declination and atmospheric/surface temperatures; 4) The largest seasonal variations in radiation occur in the 30-degrees-60-degrees latitude band in each hemisphere; 5) Cloud variations tend to enhance regional and seasonal radiation variations at lower latitudes and mute them at higher latitudes; however, they also affect the average latitudinal gradients of heating/cooling; 6) Although clouds have a net cooling effect in the global, annual mean radiation balance at both the top of the atmosphere and the surface their net effect on regional, seasonal balances is much more varied; 7) Conclusions (5) and (6), together, are equivalent to saying that the relation between cloud properties and their effect on ERB and SRB depend crucially on the regional and seasonal circumstances of the clouds; 8) Regional cloud and surface seasonal change amplitudes and phases exhibit a wide variety of values; moreover, the correlations between surface temperature and cloud properties vary greatly; 9) There appears to be no simple relation between global mean surface temperature, global mean cloud properties and their global mean effects on ERB and SRB, implying that cloud radiative effects on the seasonal temperature cycle must be described as multiple feedbacks; and 10) The complexity of the cloud radiative effect and the data accuracy required to diagnose cloud-radiative feedbacks indicate the challenge of this problem. RP ROSSOW, WB (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GODDARD INST SPACE STUDIES,2880 BROADWAY,NEW YORK,NY 10025, USA. RI Lacis, Andrew/D-4658-2012; Rossow, William/F-3138-2015 NR 0 TC 107 Z9 114 U1 0 U2 6 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD NOV PY 1990 VL 3 IS 11 BP 1204 EP 1253 DI 10.1175/1520-0442(1990)003<1204:GSCVFS>2.0.CO;2 PG 50 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC723 UT WOS:A1990FC72300003 ER PT J AU SINGH, NB MARSHALL, G GOTTLIEB, M BRANDT, GB HOPKINS, RH MAZELSKY, R DUVAL, WMB GLICKSMAN, ME AF SINGH, NB MARSHALL, G GOTTLIEB, M BRANDT, GB HOPKINS, RH MAZELSKY, R DUVAL, WMB GLICKSMAN, ME TI PURIFICATION AND CHARACTERIZATION OF MERCUROUS HALIDES SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 3RD WORKSHOP ON PURIFICATION OF MATERIALS FOR CRYSTAL GROWTH AND GLASS PROCESSING CY OCT 31-NOV 02, 1989 CL ORLANDO, FL SP AMER ASSOC CRYSTAL GROWTH, DUPONT CO, WESTINGHOUSE SCI & TECHNOL CTR, NASA, LEWIS RES CTR C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RENSSELAER POLYTECH INST,DEPT MAT ENGN,TROY,NY 12180. RP SINGH, NB (reprint author), WESTINGHOUSE SCI & TECHNOL CTR,1310 BEULAH RD,PITTSBURGH,PA 15235, USA. OI Glicksman, Martin/0000-0002-2675-2759 NR 6 TC 6 Z9 6 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD NOV PY 1990 VL 106 IS 1 BP 61 EP 67 DI 10.1016/0022-0248(90)90287-U PG 7 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA ED868 UT WOS:A1990ED86800009 ER PT J AU FRAZIER, DO FACEMIRE, BR LOO, BH BURNS, D THIESSEN, DB AF FRAZIER, DO FACEMIRE, BR LOO, BH BURNS, D THIESSEN, DB TI SOLIDIFICATION BEHAVIOR OF IMPURITY-DOPED SUCCINONITRILE SOLUTIONS IN HIGH-SURFACE AREA, LOW-BULK VOLUME CONTAINERS SO JOURNAL OF CRYSTAL GROWTH LA English DT Article; Proceedings Paper CT 3RD WORKSHOP ON PURIFICATION OF MATERIALS FOR CRYSTAL GROWTH AND GLASS PROCESSING CY OCT 31-NOV 02, 1989 CL ORLANDO, FL SP AMER ASSOC CRYSTAL GROWTH, DUPONT CO, WESTINGHOUSE SCI & TECHNOL CTR, NASA, LEWIS RES CTR C1 UNIV ALABAMA,DEPT CHEM,HUNTSVILLE,AL 35899. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,MAT & PROC LAB,HUNTSVILLE,AL 35812. UNIV COLORADO,DEPT CHEM ENGN,BOULDER,CO 80309. RP FRAZIER, DO (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812, USA. RI Thiessen, David/A-2731-2011 NR 14 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD NOV PY 1990 VL 106 IS 1 BP 101 EP 115 DI 10.1016/0022-0248(90)90292-S PG 15 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA ED868 UT WOS:A1990ED86800014 ER PT J AU OHSAKA, K TRINH, EH GLICKSMAN, ME AF OHSAKA, K TRINH, EH GLICKSMAN, ME TI UNDERCOOLING OF ACOUSTICALLY LEVITATED MOLTEN DROPS SO JOURNAL OF CRYSTAL GROWTH LA English DT Article C1 RENSSELAER POLYTECH INST,DEPT MAT ENGN,TROY,NY 12181. RP OHSAKA, K (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. OI Glicksman, Martin/0000-0002-2675-2759 NR 15 TC 25 Z9 29 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD NOV PY 1990 VL 106 IS 2-3 BP 191 EP 196 DI 10.1016/0022-0248(90)90063-Q PG 6 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA EF126 UT WOS:A1990EF12600006 ER PT J AU YOUNG, GW CHAIT, A AF YOUNG, GW CHAIT, A TI SURFACE-TENSION DRIVEN HEAT, MASS, AND MOMENTUM TRANSPORT IN A 2-DIMENSIONAL FLOAT-ZONE SO JOURNAL OF CRYSTAL GROWTH LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP YOUNG, GW (reprint author), UNIV AKRON,DEPT MATH SCI,AKRON,OH 44325, USA. NR 15 TC 12 Z9 12 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0022-0248 J9 J CRYST GROWTH JI J. Cryst. Growth PD NOV PY 1990 VL 106 IS 2-3 BP 445 EP 466 DI 10.1016/0022-0248(90)90091-X PG 22 WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied SC Crystallography; Materials Science; Physics GA EF126 UT WOS:A1990EF12600034 ER PT J AU JOHNSTON, JC PASHLER, H AF JOHNSTON, JC PASHLER, H TI CLOSE BINDING OF IDENTITY AND LOCATION IN VISUAL FEATURE PERCEPTION SO JOURNAL OF EXPERIMENTAL PSYCHOLOGY-HUMAN PERCEPTION AND PERFORMANCE LA English DT Article C1 UNIV CALIF SAN DIEGO,LA JOLLA,CA 92093. RP JOHNSTON, JC (reprint author), NASA,AMES RES CTR,MAILSTOP 262-2,MOFFETT FIELD,CA 94035, USA. NR 30 TC 86 Z9 86 U1 0 U2 1 PU AMER PSYCHOLOGICAL ASSOC PI WASHINGTON PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 SN 0096-1523 J9 J EXP PSYCHOL HUMAN JI J. Exp. Psychol.-Hum. Percept. Perform. PD NOV PY 1990 VL 16 IS 4 BP 843 EP 856 DI 10.1037/0096-1523.16.4.843 PG 14 WC Psychology; Psychology, Experimental SC Psychology GA EJ449 UT WOS:A1990EJ44900013 PM 2148596 ER PT J AU PAULEY, LL MOIN, P REYNOLDS, WC AF PAULEY, LL MOIN, P REYNOLDS, WC TI THE STRUCTURE OF 2-DIMENSIONAL SEPARATION SO JOURNAL OF FLUID MECHANICS LA English DT Article C1 STANFORD UNIV,STANFORD,CA 94305. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP PAULEY, LL (reprint author), PENN STATE UNIV,UNIVERSITY PK,PA 16802, USA. RI Tay, Wee Beng/B-1095-2010 NR 22 TC 209 Z9 214 U1 0 U2 4 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0022-1120 J9 J FLUID MECH JI J. Fluid Mech. PD NOV PY 1990 VL 220 BP 397 EP 411 DI 10.1017/S0022112090003317 PG 15 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EK875 UT WOS:A1990EK87500015 ER PT J AU BASSOM, AP SEDDOUGUI, SO AF BASSOM, AP SEDDOUGUI, SO TI THE ONSET OF 3-DIMENSIONALITY AND TIME-DEPENDENCE IN GORTLER VORTICES - NEUTRALLY STABLE WAVY MODES SO JOURNAL OF FLUID MECHANICS LA English DT Article C1 NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665. RP BASSOM, AP (reprint author), UNIV EXETER,DEPT MATH,N PK RD,EXETER EX4 4QE,ENGLAND. RI Bassom, Andrew/F-6691-2014; Stephen, Sharon/B-1011-2016 OI Stephen, Sharon/0000-0001-8204-8419 NR 12 TC 7 Z9 7 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0022-1120 J9 J FLUID MECH JI J. Fluid Mech. PD NOV PY 1990 VL 220 BP 661 EP 672 DI 10.1017/S002211209000341X PG 12 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EK875 UT WOS:A1990EK87500025 ER PT J AU KRZYNOWEK, J MURPHY, J PARISER, ER CLIFTON, AB AF KRZYNOWEK, J MURPHY, J PARISER, ER CLIFTON, AB TI 6 NORTHWEST ATLANTIC FINFISH SPECIES AS A POTENTIAL FISH OIL SOURCE SO JOURNAL OF FOOD SCIENCE LA English DT Note C1 MIT,SEA GRANT PROGRAM,CAMBRIDGE,MA 02139. RP KRZYNOWEK, J (reprint author), NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES CTR,GLOUCESTER,MA, USA. NR 20 TC 5 Z9 5 U1 0 U2 0 PU INST FOOD TECHNOLOGISTS PI CHICAGO PA SUITE 300 221 N LASALLE ST, CHICAGO, IL 60601-1291 SN 0022-1147 J9 J FOOD SCI JI J. Food Sci. PD NOV-DEC PY 1990 VL 55 IS 6 BP 1743 EP 1744 DI 10.1111/j.1365-2621.1990.tb03614.x PG 2 WC Food Science & Technology SC Food Science & Technology GA EL978 UT WOS:A1990EL97800066 ER PT J AU SMITH, EJ AF SMITH, EJ TI THE HELIOSPHERIC CURRENT SHEET AND MODULATION OF GALACTIC COSMIC-RAYS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article RP SMITH, EJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 27 TC 67 Z9 67 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18731 EP 18743 DI 10.1029/JA095iA11p18731 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000001 ER PT J AU NEUGEBAUER, M COATES, AJ NEUBAUER, FM AF NEUGEBAUER, M COATES, AJ NEUBAUER, FM TI COMPARISON OF PICKED-UP PROTONS AND WATER GROUP IONS UPSTREAM OF COMET HALLEY BOW SHOCK SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 UCL, MULLARD SPACE SCI LAB, DORKING RH5 6NT, SURREY, ENGLAND. UNIV COLOGNE, INST GEOPHYS & METEOROL, W-5000 COLOGNE 41, GERMANY. RP NEUGEBAUER, M (reprint author), CALTECH, JET PROP LAB, 4800 OAK GROVE DR, PASADENA, CA 91109 USA. RI Coates, Andrew/C-2396-2008 OI Coates, Andrew/0000-0002-6185-3125 NR 27 TC 30 Z9 30 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 0148-0227 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18745 EP 18753 DI 10.1029/JA095iA11p18745 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000002 ER PT J AU WHANG, YC LIU, SL BURLAGA, LF AF WHANG, YC LIU, SL BURLAGA, LF TI SHOCK HEATING OF THE SOLAR-WIND PLASMA SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. UNIV SCI & TECHNOL CHINA,DEPT EARTH & SPACE SCI,HEFEI,PEOPLES R CHINA. RP WHANG, YC (reprint author), CATHOLIC UNIV AMER,DEPT MECH ENGN,WASHINGTON,DC 20064, USA. NR 27 TC 10 Z9 15 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18769 EP 18780 DI 10.1029/JA095iA11p18769 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000004 ER PT J AU WHANG, YC ZHAO, XP OGILVIE, KW AF WHANG, YC ZHAO, XP OGILVIE, KW TI HEATING OF MINOR IONS BY THE CORONAL SLOW SHOCK SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 BEIJING UNIV,DEPT GEOPHYS,BEIJING,PEOPLES R CHINA. NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP WHANG, YC (reprint author), CATHOLIC UNIV AMER,DEPT MECH ENGN,WASHINGTON,DC 20064, USA. NR 33 TC 5 Z9 5 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18781 EP 18790 DI 10.1029/JA095iA11p18781 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000005 ER PT J AU OHTANI, S KOKUBUN, S NAKAMURA, R ELPHIC, RC RUSSELL, CT BAKER, DN AF OHTANI, S KOKUBUN, S NAKAMURA, R ELPHIC, RC RUSSELL, CT BAKER, DN TI FIELD-ALIGNED CURRENT SIGNATURES IN THE NEAR-TAIL REGION .2. COUPLING BETWEEN THE REGION-1 AND THE REGION-2 SYSTEMS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 JOHNS HOPKINS UNIV, APPL PHYS LAB, LAUREL, MD 20707 USA. UNIV CALIF LOS ALAMOS SCI LAB, LOS ALAMOS, NM 87544 USA. UNIV CALIF LOS ANGELES, INST GEOPHYS & PLANETARY PHYS, LOS ANGELES, CA 90024 USA. NASA, GODDARD SPACE FLIGHT CTR, EXTRATERR PHYS LAB, GREENBELT, MD 20771 USA. RP UNIV TOKYO, GEOPHYS RES LAB, TOKYO 113, JAPAN. RI Nakamura, Rumi/I-7712-2013; Ohtani, Shinichi/E-3914-2016 OI Nakamura, Rumi/0000-0002-2620-9211; Ohtani, Shinichi/0000-0002-9565-6840 NR 50 TC 21 Z9 21 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2169-9380 EI 2169-9402 J9 J GEOPHYS RES-SPACE JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18913 EP 18927 DI 10.1029/JA095iA11p18913 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000015 ER PT J AU FUJII, R HOFFMAN, RA SUGIURA, M AF FUJII, R HOFFMAN, RA SUGIURA, M TI SPATIAL RELATIONSHIPS BETWEEN REGION-2 FIELD-ALIGNED CURRENTS AND ELECTRON AND ION PRECIPITATION IN THE EVENING SECTOR SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 TOKAI UNIV,INST RES & DEV,TOKYO 151,JAPAN. RP FUJII, R (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 696,GREENBELT,MD 20771, USA. NR 40 TC 5 Z9 5 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18939 EP 18947 DI 10.1029/JA095iA11p18939 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000017 ER PT J AU POLLOCK, CJ CHANDLER, MO MOORE, TE WAITE, JH CHAPPELL, CR GURNETT, DA AF POLLOCK, CJ CHANDLER, MO MOORE, TE WAITE, JH CHAPPELL, CR GURNETT, DA TI A SURVEY OF UPWELLING ION EVENT CHARACTERISTICS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 SW RES INST,DEPT SPACE PHYS,SAN ANTONIO,TX 78284. RP POLLOCK, CJ (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812, USA. RI Moore, Thomas/D-4675-2012 OI Moore, Thomas/0000-0002-3150-1137 NR 35 TC 102 Z9 102 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 18969 EP 18980 DI 10.1029/JA095iA11p18969 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000019 ER PT J AU FARRELL, WM DESCH, MD KAISER, ML AF FARRELL, WM DESCH, MD KAISER, ML TI FIELD-INDEPENDENT SOURCE LOCALIZATION OF NEPTUNE RADIO-BURSTS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Note RP FARRELL, WM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771, USA. RI Farrell, William/I-4865-2013 NR 8 TC 13 Z9 13 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD NOV 1 PY 1990 VL 95 IS A11 BP 19143 EP 19148 DI 10.1029/JA095iA11p19143 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EH050 UT WOS:A1990EH05000037 ER PT J AU WARREN, W WIE, B GELLER, D AF WARREN, W WIE, B GELLER, D TI PERIODIC-DISTURBANCE ACCOMMODATING CONTROL OF THE SPACE STATION FOR ASYMPTOTIC MOMENTUM MANAGEMENT SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID QUATERNION FEEDBACK AB Periodic-disturbance accommodating control is investigated for asymptotic momentum management of control moment gyros used as primary actuating devices for the space station. The proposed controller uses the concepts of quaternion feedback control and periodic-disturbance accommodation to achieve oscillations about the constant torque equilibrium attitude while minimizing the control effort required. Three-axis coupled equations of motion, written in terms of quaternions, are derived for roll/yaw controller design and stability analysis. The quaternion feedback controller designed using the linear-quadratic-regulator synthesis technique is shown to be robust for a wide range of pitch angles. It is also shown that the proposed controller tunes the open-loop unstable vehicle to a stable oscillatory motion that minimizes the control effort needed for steady-state operations. C1 NASA,LYNDON B JOHNSON SPACE CTR,DIV MISSION PLANNING & ANAL,HOUSTON,TX 77058. RP WARREN, W (reprint author), ARIZONA STATE UNIV,DEPT MECH & AEROSP ENGN,TEMPE,AZ 85287, USA. RI Geller, David/N-3425-2014 NR 7 TC 12 Z9 14 U1 0 U2 3 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD NOV-DEC PY 1990 VL 13 IS 6 BP 984 EP 992 DI 10.2514/3.20570 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA ET953 UT WOS:A1990ET95300008 ER PT J AU SOBEL, KM YU, WL LALLMAN, FJ AF SOBEL, KM YU, WL LALLMAN, FJ TI EIGENSTRUCTURE ASSIGNMENT WITH GAIN SUPPRESSION USING EIGENVALUE AND EIGENVECTOR DERIVATIVES SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID OUTPUT-FEEDBACK AB Eigenstructure assignment is considered with gain suppression in which selected entries in the output feedback gain matrix are eliminated. This approach may yield a simpler controller with only a small effect on performance. Early results used partial derivatives of the eigenvalues with respect to the gains in order to determine which entries of the feedback gain matrix should be selected for elimination. In this paper, expressions for the partial derivatives of the eigenvectors with respect to the feedback gains are derived and used to compute the expected shift in the eigenvectors if the ijth feedback gain were eliminated. This establishes an improved design method for eigenstructure assignment with gain suppression by a priori choosing to eliminate those gains that have the smallest influence on both the eigenvalues and eigenvectors. An example of a fighter aircraft is presented that illustrates the importance of using both eigenvalue and eigenvector derivative information when choosing which feedback gains should be eliminated. C1 NASA,LANGLEY RES CTR,DIV GUIDANCE & CONTROLS,HAMPTON,VA 23665. RP SOBEL, KM (reprint author), CUNY CITY COLL,DEPT ELECT ENGN,NEW YORK,NY 10031, USA. NR 8 TC 5 Z9 5 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD NOV-DEC PY 1990 VL 13 IS 6 BP 1008 EP 1013 DI 10.2514/3.20573 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA ET953 UT WOS:A1990ET95300011 ER PT J AU ANTHONY, TC WIE, B CARROLL, S AF ANTHONY, TC WIE, B CARROLL, S TI PULSE-MODULATED CONTROL SYNTHESIS FOR A FLEXIBLE SPACECRAFT SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB The describing function method is employed for the nonlinear control analysis and design of a flexible spacecraft equipped with pulse-modulated reaction jets. The method provides a means of characterizing the pulse modulator in terms of its gain and phase for structural mode limit-cycle analysis. Although the describing function method is inherently inexact and is not widely used in practice, a new way of utilizing it for practical control design problems is presented. It is shown that the approximations inherent in the method can be accounted for as a modeling uncertainty for the nonlinear control robustness analysis. The pulse-modulated control system of the INTELSAT 5 spacecraft is used as an example to illustrate the concept and methodology developed in the paper. The nonlinear stability margins predicted by the describing function analysis are verified from nonlinear simulations. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,DIV CONTROL SYST,HUNTSVILLE,AL 35812. RP ANTHONY, TC (reprint author), UNIV TEXAS,AUSTIN,TX 78713, USA. NR 12 TC 42 Z9 49 U1 1 U2 5 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD NOV-DEC PY 1990 VL 13 IS 6 BP 1014 EP 1022 DI 10.2514/3.20574 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA ET953 UT WOS:A1990ET95300012 ER PT J AU MAGHAMI, PG JUANG, JN AF MAGHAMI, PG JUANG, JN TI EFFICIENT EIGENVALUE ASSIGNMENT FOR LARGE SPACE STRUCTURES SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID POLE ASSIGNMENT; OUTPUT-FEEDBACK; EIGENSTRUCTURE ASSIGNMENT; MULTIVARIABLE SYSTEMS; SYLVESTER EQUATION; STATE FEEDBACK; ROBUST AB A novel and efficient approach for the eigenvalue assignment of large, first-order, time-invariant systems is developed using full-state feedback and output feedback. The full-state feedback approach basically consists of three steps. First, a Schur decomposition is applied to triangularize the state matrix. Second, a series of coordinate rotations (Givens rotations) is used to move the eigenvalue to be reassigned to the end of the diagonal of its Schur form. Third, the eigenvalue is moved to the desired location by a full-state feedback without affecting the remaining eigenvalues. The second and third steps can be repeated until all the assignable eigenvalues are moved to the desired locations. Given the freedom of multiple inputs, the feedback gain matrix is calculated to minimize an objective function composed of a gain matrix norm and/or a robustness index of the closed-loop system. An output feedback approach is also developed using similar procedures as for the full-state feedback wherein the maximum allowable number of eigenvalues may be assigned. Numerical examples are given to demonstrate the feasibility of the proposed approach. C1 NASA,LANGLEY RES CTR,SPACECRAFT DYNAM BRANCH,HAMPTON,VA 23665. RP MAGHAMI, PG (reprint author), NASA,LANGLEY RES CTR,SPACECRAFT CONTROLS BRANCH,HAMPTON,VA 23665, USA. NR 16 TC 8 Z9 11 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD NOV-DEC PY 1990 VL 13 IS 6 BP 1033 EP 1039 DI 10.2514/3.20576 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA ET953 UT WOS:A1990ET95300014 ER PT J AU AUSTIN, F CARBONE, G FALCO, M HINZ, H LEWIS, M AF AUSTIN, F CARBONE, G FALCO, M HINZ, H LEWIS, M TI GAME-THEORY FOR AUTOMATED MANEUVERING DURING AIR-TO-AIR COMBAT SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB A game-matrix approach has been developed to generate intelligent maneuvering decisions for low-flying aircraft during one-on-one air combat over hilly terrain. The decisions are made by comparing scores based on the predicted orientation, range, velocity, and terrain clearance for various maneuver combinations of both aircraft. A computer program implements the decision process in real time and computes the state of the aircraft employing the selected maneuvers. Predicted states are obtained by numerically integrating the dynamic equations. The program has been installed and demonstrated at the NASA Ames vertical motion simulator to provide an automated adversary for manned helicopter combat simulations. A stand-alone version of the program, in which the decisions of both combatants are generated by the computer, has also been prepared for nonpiloted simulations. Sample trajectories show that this new automated maneuvering logic generates some of the tactics employed by experienced pilots in combat flight tests. Whereas the current application applies to helicopter combat, the program can be used for fixed-wing aircraft by replacing those subroutines that provide the aircraft capabilities. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP AUSTIN, F (reprint author), GRUMMAN CORP RES CTR,BETHPAGE,NY 11714, USA. NR 6 TC 17 Z9 27 U1 0 U2 3 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD NOV-DEC PY 1990 VL 13 IS 6 BP 1143 EP 1149 DI 10.2514/3.20590 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA ET953 UT WOS:A1990ET95300028 ER PT J AU GOETZ, G AF GOETZ, G TI THE GRAVITATIONAL-FIELD OF PLANE SYMMETRICAL THICK DOMAIN-WALLS SO JOURNAL OF MATHEMATICAL PHYSICS LA English DT Article C1 NASA,CTR FERMILAB ASTROPHYS,FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. RP GOETZ, G (reprint author), UNIV CHICAGO,CTR ASTRON & ASTROPHYS,CHICAGO,IL 60637, USA. NR 14 TC 81 Z9 81 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0022-2488 J9 J MATH PHYS JI J. Math. Phys. PD NOV PY 1990 VL 31 IS 11 BP 2683 EP 2687 DI 10.1063/1.528969 PG 5 WC Physics, Mathematical SC Physics GA EF122 UT WOS:A1990EF12200023 ER PT J AU YAMAMOTO, H MI, Y STERN, SA STCLAIR, AK AF YAMAMOTO, H MI, Y STERN, SA STCLAIR, AK TI STRUCTURE PERMEABILITY RELATIONSHIPS OF POLYIMIDE MEMBRANES .2. SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS LA English DT Article C1 SYRACUSE UNIV,DEPT CHEM ENGN & MAT SCI,SYRACUSE,NY 13244. NASA,LANGLEY RES CTR,DIV MAT,HAMPTON,VA 23665. NR 35 TC 88 Z9 88 U1 1 U2 8 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0887-6266 J9 J POLYM SCI POL PHYS JI J. Polym. Sci. Pt. B-Polym. Phys. PD NOV PY 1990 VL 28 IS 12 BP 2291 EP 2304 DI 10.1002/polb.1990.090281210 PG 14 WC Polymer Science SC Polymer Science GA EE236 UT WOS:A1990EE23600010 ER PT J AU CHAMIS, CC AF CHAMIS, CC TI SIMPLIFIED PROCEDURES FOR DESIGNING COMPOSITE BOLTED JOINTS SO JOURNAL OF REINFORCED PLASTICS AND COMPOSITES LA English DT Article RP CHAMIS, CC (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 4 Z9 4 U1 0 U2 1 PU TECHNOMIC PUBL CO INC PI LANCASTER PA 851 NEW HOLLAND AVE, BOX 3535, LANCASTER, PA 17604 SN 0731-6844 J9 J REINF PLAST COMP JI J. Reinf. Plast. Compos. PD NOV PY 1990 VL 9 IS 6 BP 614 EP 626 DI 10.1177/073168449000900607 PG 13 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA EJ691 UT WOS:A1990EJ69100007 ER PT J AU DAVIS, WT WRIGHT, RL AF DAVIS, WT WRIGHT, RL TI OPSMODEL, AN ON-ORBIT OPERATIONS SIMULATION MODELING TOOL FOR SPACE STATION SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB AN operations analysis and planning tool (OPSMODEL) has been developed by Computer Sciences Corporation for NASA Langley Research Center to provide realistic modeling and simulation of on-orbit crew operations for a space station. The IBM PC compatible program produces a quantitative measure of the effectiveness of the on-orbit crew's activities under alternative space station designs, technologies, and operational policies. The OPSMODEL also supports engineering and cost analyses and operations planning activities. The simulation can be monitored on-line with the focus and level of detail selected by the user. Other outputs include engineering performance indicators, such as crew times and space station status, cost performance organized according to work breakdown structure, and various data products extracted from a time-tagged event log recorded during the simulation run. RP DAVIS, WT (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,SPACECRAFT ANAL BRANCH,HAMPTON,VA 23665, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 569 EP 570 DI 10.2514/3.26182 PG 2 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700001 ER PT J AU COMFORT, RH CHANDLER, MO AF COMFORT, RH CHANDLER, MO TI SEMIEMPIRICAL ANALYTICAL MODEL FOR THE SPIN MODULATION OF RETARDING POTENTIAL ANALYZER FLUXES SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID ION TEMPERATURES; SATELLITE AB The spin modulation of ion fluxes to a spinning retarding potential analyzer (RPA) has been computed numerically from a theoretical model that has been found to represent satellite observations well in the forward direction. These calculations cover ion Mach numbers from 0.2 to 4.2, normalized (dimensionless) spacecraft potentials from -5 to +5, and spin angles from 0 to 90 deg. A relatively simple empirical, analytical expression has been developed to represent these curves very accurately as functions of these three parameters. Over the range of parameters investigated, maximum deviations of the model from the original values are less than 16%, these occurring for spin angles of 30 and 80 deg, while average values are within 4%. The spin modulation is found to be more sensitive to ion Mach number than to spacecraft potential, but with sensitivity increasing as the spacecraft potential becomes more positive. This latter characteristic makes the spin modulation a useful supplement to the customary energy analysis of RPA ion data, particularly for determining spacecraft potential for a positively charged spacecraft. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. UNIV ALABAMA,CTR SPACE PLASMA & AERON RES,HUNTSVILLE,AL 35899. RP COMFORT, RH (reprint author), UNIV ALABAMA,DEPT PHYS,HUNTSVILLE,AL 35899, USA. NR 6 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 577 EP 582 DI 10.2514/3.55616 PG 6 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700003 ER PT J AU PARK, C DAVIES, CB AF PARK, C DAVIES, CB TI AEROTHERMODYNAMICS OF SPRINT-TYPE MANNED MARS MISSIONS SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB The aerothermodynamic problems associated with the aerobraking of the spacecraft proposed for the sprint-type fast manned Mars mission are studied. The propulsive DELTA-V necessary at departure from Earth and Mars and the velocities of the atmospheric entries into the two planets are first deduced from the existing literature by imposing the constraints that the mission be completed within 330 or 436 days. It is shown that entry velocities up to about 15 km/s are possible at both Earth and Mars. Through the trajectory calculations of the vehicles during the aerobraking maneuvers, the requirements on the lift-to-drag ratios (L/D) of the vehicles are deduced under the constraint on the allowed deceleration. L/D values of 0.4 and 1.0 are found to be necessary at Earth and Mars, respectively. Density, pressure, and stagnation-point convective heat-transfer rates are calculated for the typical aerobraking flights. Assuming the shock layer flow to be in equilibrium and the gas to be optically thin for the wavelengths longer than 250 nm and optically thick for the shorter wavelengths, the stagnation-point radiative heat-transfer rates are calculated and shown to be larger than the convective heat-transfer rates. C1 STERLING SOFTWARE,PALO ALTO,CA 94303. RP PARK, C (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 22 TC 4 Z9 4 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 589 EP 596 DI 10.2514/3.26185 PG 8 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700005 ER PT J AU GRANTZ, AC DEJARNETTE, FR THOMPSON, RA AF GRANTZ, AC DEJARNETTE, FR THOMPSON, RA TI APPROXIMATE VISCOUS SHOCK-LAYER METHOD FOR HYPERSONIC FLOW OVER BLUNT-NOSED BODIES SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID LAMINAR AB An approximate axisymmetric method is presented that can calculate the surface and flowfield properties accurately for the fully viscous hypersonic flow over blunt-nosed bodies. Using the second-order pressure equation of Maslen and incorporating viscous terms into the streamwise momentum and energy equations, a simple method is obtained which can calculate both the subsonic and supersonic regions of the shock layer and does not require a starting solution for the shock shape. The turbulence model of Cebeci-Smith and the equilibrium air tables of Hansen are incorporated into the method. The method is faster than the parabolized Navier-Stokes or viscous shock-layer solvers it might replace in a preliminary design environment. Hyperboloid and sphere cone configurations at 0-deg angle of attack and with half-angles up to 45 deg have been successfully run to convergence. Surface heat-transfer and pressure predictions from the present method compare very well with the more accurate viscous shock-layer method, flight and wind-tunnel data. Distributions of flowfield properties across the shock layer also compare very well between the two methods. Because the present viscous method does not require a starting solution, it could be used to provide more accurate shock shapes for higher-order methods which currently use inviscid starting solutions. C1 N CAROLINA STATE UNIV,RALEIGH,NC 27695. NASA,LANGLEY RES CTR,AEROTHERMODYNAM BRANCH,HAMPTON,VA 23665. NR 28 TC 4 Z9 4 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 597 EP 605 DI 10.2514/3.26186 PG 9 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700006 ER PT J AU BRODY, AR ELLIS, SR AF BRODY, AR ELLIS, SR TI EFFECT OF AN ANOMALOUS THRUSTER INPUT DURING A SIMULATED DOCKING MANEUVER SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB An experiment was performed in the Space Station Proximity Operations Simulator at the NASA Ames Research Center. Five test subjects were instructed to perform 20 simulated remote docking maneuvers of an orbital maneuvering vehicle (OMV) to the space station in which they were located. The OMV started from an initial range of 304.8 m (1000 ft) on the space station's negative velocity vector (-V-bar). Anomalous out-of-plane thruster firings of various magnitudes (simulating a faulty thruster) occurred at one of five ranges from the target. Initial velocity, range of anomalous burn, and magnitude of anomalous burn were the factors varied. In addition to whether the trial was successful, time and fuel to return to a nominal trajectory, total mission duration, total fuel consumption (delta V), failure rate, and time histories of commanded burns were recorded. Analyses of the results added support to the hypothesis that slow approach velocities are not inherently safer than their more rapid counterparts. Naive subjects were capable of docking successfully at velocities faster than those prescribed by the "0.1% rule" even when a simulated faulty thruster disturbed the nominal trajectory. Little to no justification for slow approach velocities remains from a human-factors standpoint. C1 NASA,AMES RES CTR,DIV AEROSP HUMAN FACTORS RES,HUMAN INTERFACE RES BRANCH,MOFFETT FIELD,CA 94035. RP BRODY, AR (reprint author), STERLING SOFTWARE,PALO ALTO,CA 94303, USA. NR 22 TC 4 Z9 4 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 630 EP 633 DI 10.2514/3.26191 PG 4 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700011 ER PT J AU WEILMUENSTER, KJ GNOFFO, PA AF WEILMUENSTER, KJ GNOFFO, PA TI AEROASSISTED FLIGHT EXPERIMENT AERODYNAMIC CHARACTERISTICS AT FLIGHT CONDITIONS SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Note RP WEILMUENSTER, KJ (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,AEROTHERMODYNAM BRANCH,HAMPTON,VA 23665, USA. NR 8 TC 7 Z9 7 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD NOV-DEC PY 1990 VL 27 IS 6 BP 684 EP 685 DI 10.2514/3.26200 PG 2 WC Engineering, Aerospace SC Engineering GA FA357 UT WOS:A1990FA35700020 ER PT J AU ELRAHEB, M WAGNER, P AF ELRAHEB, M WAGNER, P TI ACOUSTIC RESPONSE OF A RECTANGULAR LEVITATOR WITH ORIFICES SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP ELRAHEB, M (reprint author), DOW CHEM CO USA,CENT RES,MIDLAND,MI 48674, USA. NR 9 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 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD NOV PY 1990 VL 88 IS 5 BP 2437 EP 2449 DI 10.1121/1.400084 PG 13 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA EH614 UT WOS:A1990EH61400038 ER PT J AU WHEELER, DR PEPPER, SV AF WHEELER, DR PEPPER, SV TI X-RAY PHOTOELECTRON AND MASS SPECTROSCOPIC STUDY OF ELECTRON-IRRADIATION AND THERMAL-STABILITY OF POLYTETRAFLUOROETHYLENE SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS LA English DT Article RP WHEELER, DR (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 24 TC 31 Z9 31 U1 0 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0734-2101 J9 J VAC SCI TECHNOL A JI J. Vac. Sci. Technol. A-Vac. Surf. Films PD NOV-DEC PY 1990 VL 8 IS 6 BP 4046 EP 4056 DI 10.1116/1.576474 PG 11 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EJ415 UT WOS:A1990EJ41500026 ER PT J AU TIBERIO, RC PORKOLAB, GA JOHNSON, JE GRANDE, WJ RATHBUN, LC WOLF, ED CRAIGHEAD, HG LANG, RJ LARSSON, A FOROUHAR, S CODY, J AF TIBERIO, RC PORKOLAB, GA JOHNSON, JE GRANDE, WJ RATHBUN, LC WOLF, ED CRAIGHEAD, HG LANG, RJ LARSSON, A FOROUHAR, S CODY, J TI ELECTRON-BEAM LITHOGRAPHY AND CHEMICALLY ASSISTED ION-BEAM ETCHING FOR THE FABRICATION OF GRATING SURFACE-EMITTING BROAD-AREA ALGAAS LASERS SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B LA English DT Article; Proceedings Paper CT 34TH INTERNATIONAL SYMP ON ELECTRON, ION, AND PHOTON BEAMS CY MAY 29-JUN 01, 1990 CL SAN ANTONIO, TX SP AMER VACUUM SOC, IEEE, ELECTRON DEVICES SOC ID DISTRIBUTED FEEDBACK LASER; ETCHED MIRRORS; GAAS AB We report on the fabrication and characterization of broad-area, grating-coupled, distributed Bragg reflector, surface-emitting, AlGaAs/GaAs laser diodes. Electron-beam lithography and chemically assisted ion-beam etching (CAIBE) were used to fabricate both first-order (120-nm period) and second-order (240-nm period) gratings. Gratings were patterned by exposing PMMA resist using 50-keV electrons in a JEOL 5DIIU direct write electron-beam lithography system. The resist image was transferred into the AlGaAs layer by CAIBE. CAIBE was performed using chlorine gas in conjunction with a 500-eV argon-ion beam in a modified Technics Plasma GmbH RIB 160 etcher. Surface-emitting lasers using second-order gratings were fabricated on AlGaAs/GaAs asymmetric separate confinement double heterostructure layers grown by liquid-phase epitaxy. Wet chemical etching was used to removed the upper cladding layer, exposing the waveguide in selected areas. Gratings were then etched into the waveguide to produce surface emitting window regions. The far-field light intensity pattern shows a lateral angular spread of 2.4-degrees for a 50-mu-m-wide stripe. This lateral angular distribution is the lowest reported for a broad-area (not array) grating surface-emitter. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP TIBERIO, RC (reprint author), CORNELL UNIV,NATL NANOFABRICAT FACIL,ITHACA,NY 14853, USA. RI Larsson, Anders/P-7275-2015 OI Larsson, Anders/0000-0002-0912-7695 NR 27 TC 6 Z9 6 U1 0 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1071-1023 J9 J VAC SCI TECHNOL B JI J. Vac. Sci. Technol. B PD NOV-DEC PY 1990 VL 8 IS 6 BP 1408 EP 1411 DI 10.1116/1.585087 PG 4 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Physics, Applied SC Engineering; Science & Technology - Other Topics; Physics GA EP323 UT WOS:A1990EP32300038 ER PT J AU STEIMLE, FW ZDANOWICZ, VS GADBOIS, DF AF STEIMLE, FW ZDANOWICZ, VS GADBOIS, DF TI METALS AND ORGANIC CONTAMINANTS IN NORTHWEST ATLANTIC DEEP-SEA TILEFISH TISSUES SO MARINE POLLUTION BULLETIN LA English DT Note C1 US DEPT COMMERCE, NOAA,NATL MARINE FISHERIES SERV,NEFC, GLOUCESTER LAB, GLOUCESTER, MA 01930 USA. RP US DEPT COMMERCE, NOAA, NATL MARINE FISHERIES SERV, NEFC, SANDY HOOK LAB, HIGHLANDS, NJ 07732 USA. NR 22 TC 24 Z9 25 U1 0 U2 2 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0025-326X EI 1879-3363 J9 MAR POLLUT BULL JI Mar. Pollut. Bull. PD NOV PY 1990 VL 21 IS 11 BP 530 EP 535 DI 10.1016/0025-326X(90)90301-N PG 6 WC Environmental Sciences; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA EN113 UT WOS:A1990EN11300013 ER PT J AU GENERAZIO, ER ROTH, DJ STANG, DB AF GENERAZIO, ER ROTH, DJ STANG, DB TI GENERAL-PURPOSE INTERFACE BUS FOR MULTIUSER, MULTITASKING COMPUTER-SYSTEMS SO MATERIALS EVALUATION LA English DT Article RP GENERAZIO, ER (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER SOC NON-DESTRUCTIVE TEST PI COLUMBUS PA 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 SN 0025-5327 J9 MATER EVAL JI Mater. Eval. PD NOV PY 1990 VL 48 IS 11 BP 1406 EP & PG 0 WC Materials Science, Characterization & Testing SC Materials Science GA EG904 UT WOS:A1990EG90400009 ER PT J AU WADA, BK FANSON, JI CRAWLEY, EF AF WADA, BK FANSON, JI CRAWLEY, EF TI ADAPTIVE STRUCTURES SO MECHANICAL ENGINEERING LA English DT Article RP WADA, BK (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 0 TC 6 Z9 6 U1 0 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0025-6501 J9 MECH ENG JI Mech. Eng. PD NOV PY 1990 VL 112 IS 11 BP 41 EP 46 PG 6 WC Engineering, Mechanical SC Engineering GA EG670 UT WOS:A1990EG67000009 ER PT J AU HEARN, CP BRADSHAW, ES TREW, RJ AF HEARN, CP BRADSHAW, ES TREW, RJ TI THE EFFECT OF COUPLING LINE LOSS IN MICROSTRIP TO DIELECTRIC RESONATOR COUPLING SO MICROWAVE JOURNAL LA English DT Article C1 N CAROLINA STATE UNIV,RALEIGH,NC 27695. RP HEARN, CP (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 5 TC 5 Z9 5 U1 0 U2 0 PU HORIZON HOUSE-MICROWAVE PI NORWOOD PA 685 CANTON ST, NORWOOD, MA 02062 SN 0192-6225 J9 MICROWAVE J JI Microw. J. PD NOV PY 1990 VL 33 IS 11 BP 169 EP & PG 0 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EJ324 UT WOS:A1990EJ32400011 ER PT J AU STARR, DO WYLIE, DP AF STARR, DO WYLIE, DP TI THE 27-28 OCTOBER 1986 FIRE CIRRUS CASE-STUDY - METEOROLOGY AND CLOUDS SO MONTHLY WEATHER REVIEW LA English DT Article ID UNCINUS GENERATING CELLS; MICROSCALE STRUCTURE; RADIATIVE PROCESSES; CIRRIFORM CLOUDS; PRECIPITATION; ORGANIZATION; MAINTENANCE; MESOSCALE; EVOLUTION; MODEL AB Detailed descriptions of the rawinsonde-resolved meteorological conditions (3-hourly soundings) associated with a succession of five distinct mesoscale cirrus cloud regimes, which were observed intensely over a 36-hour period, is given. The synoptic scale systems in which these features were embedded are described and a brief overview of the experiment are given. Regional analyses of the static stability structure and vertical motion are presented and interpreted with respect to the characteristics of the corresponding cloud fields as deduced from satellite and lidar observations. The cloud fields exhibited a high degree of persistent mesoscale organization on scales of 20-500 km reflecting corresponding scales of dynamic and thermodynamic structure/variability as on the synoptic scale. Cloud generation was usually confined to layers less than 1 km deep (typically 0.5 km in depth) and cellular organization was evident in most cases irrespective of the thermal stratification. Multilayered development was prevalent (2-3 layers) and was associated with vertical structure of the temperature and moisture fields resulting primarily from vertical gradients in horizontal advection. One convective generation layer was usually present. Destabilization resulted primarily from advective processes that also led to the formation of a transient stable layer above and/or below the convective layer. Though resembling elevated frontal surfaces, the stable layers were not extensions of surface features. Cloud processes, primarily ice particle fall-out and evaporation, but also including cloud top detrainment, contributed to generating the multilayered structure. Two cases of clouds spawned from an overlying cloud deck were seen where one involved natural seeding of an ice-saturated and conditionally unstable layer in which vigorous convective development was subsequently observed. Subvisual cirrus in the lower stratosphere were found to be associated with prior tropopause features (upwind) where denser cirrus existed. Inferences are drawn with respect to the parameterization of cirrus in large-scale models. In particular, vertical resolution on the order of 0.5 km will probably be required to adequately resolve the forcing required for implementation of a physically-based parameterization. Greater understanding of the nature and causes of the observed mesoscale structure is also needed. C1 UNIV WISCONSIN,CTR SPACE SCI & ENGN,MADISON,WI 53706. RP STARR, DO (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 913,GREENBELT,MD 20771, USA. NR 38 TC 59 Z9 59 U1 0 U2 0 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 NOV PY 1990 VL 118 IS 11 BP 2259 EP 2287 DI 10.1175/1520-0493(1990)118<2259:TOFCCS>2.0.CO;2 PG 29 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000002 ER PT J AU SASSEN, K GRUND, CJ SPINHIRNE, JD HARDESTY, MM ALVAREZ, JM AF SASSEN, K GRUND, CJ SPINHIRNE, JD HARDESTY, MM ALVAREZ, JM TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - A 5 LIDAR OVERVIEW OF CLOUD STRUCTURE AND EVOLUTION SO MONTHLY WEATHER REVIEW LA English DT Article ID OPTICAL-PROPERTIES; POLARIZATION; PHASE AB Optical remote sensing measurements of cirrus cloud properties were collected by one airborne and four ground-based lidar systems over a 32-h period during this case study from the First ISCCP (International Satellite Cloud Climatology Program) Regional Experiment (FIRE) Intensive Field Observation (IFO) program. The lidar systems were variously equipped to collect linear depolarization, intrinsically calibrated backscatter, and Doppler velocity information. Data presented here describe the temporal evolution and spatial distribution of cirrus clouds over an area encompassing southern and central Wisconsin. The cirrus cloud types include: (a) dissipating subvisual and "thin" fibrous cirrus cloud bands, (b) an isolated mesoscale uncinus complex (MUC), (c) a large-scale, deep cloud that developed into an organized cirrus structure within the lidar array, and (d) a series of intensifying mesoscale cirrus cloud masses. Although the cirrus frequently developed in the vertical from particle fallstreaks emanating from generating regions at or near cloud tops, glaciating supercooled (-30-degrees to -35-degrees-C) altocumulus clouds contributed to the production of ice mass at the base of the deep cirrus cloud, apparently even through riming, and other mechanisms involving evaporation, wave motions, and radiative effects are indicated. The generating regions ranged in scale from approximately 1.0-km cirrus uncinus cells, to organized MUC structures up to approximately 120 km across. C1 UNIV WISCONSIN,DEPT HIGH ENERGY PHYS,MADISON,WI 53706. NASA,GODDARD SPACE FLIGHT CTR,ENVIRONM SENSORS BRANCH,GREENBELT,MD 20771. NOAA,ENVIRONM RES LABS,WAVE PROPAGAT LAB,ATMOSPHER LIDAR PROGRAM,BOULDER,CO 80303. NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP SASSEN, K (reprint author), UNIV UTAH,DEPT METEOROL,SALT LAKE CITY,UT 84112, USA. RI Hardesty, Robert/H-9844-2013 NR 20 TC 62 Z9 62 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 NOV PY 1990 VL 118 IS 11 BP 2288 EP 2311 DI 10.1175/1520-0493(1990)118<2288:TOFICC>2.0.CO;2 PG 24 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000003 ER PT J AU HEYMSFIELD, AJ MILLER, KM SPINHIRNE, JD AF HEYMSFIELD, AJ MILLER, KM SPINHIRNE, JD TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - CLOUD MICROSTRUCTURE SO MONTHLY WEATHER REVIEW LA English DT Article ID OPTICAL-PROPERTIES; ICE; PRECIPITATION; AIRCRAFT AB The temperature and windfield structures and hydrometeor composition of cirrus clouds sampled by the NCAR King Air and Sabreliner aircraft on 28 October 1986 near Madison, Wisconsin are described as part of a case study that examines cirrus cloud radiative and microphysical properties. Two cloud layers were sampled from top to base. The upper layer was found at altitudes between 8.5 and 11.5 km and the lower between 6.0 and 8.5 km. Vertical velocities calculated from the increase in ice mass flux with height were typical of synoptic scale lifting. Stronger vertical velocities were measured in convective cells at the top of the lower layer. The total ice particle concentration was dominated by particles < 200-mu-m. Mean particle size and ice water content increased with decreasing altitude. The largest particles, exceeding 1000-mu-m in the upper layer and 1500 mu-m in the lower layer, probably resulted from aggregation, even at cold temperatures. Cloud emissivity and optical depth were calculated from the ice particle size spectra. The distribution of ice mass was narrow at cloud top and broadened with decreasing altitude. At the highest levels of the upper cloud, half the mass was in particles < 150-mu-m. In this region, we underestimate the mass by a significant fraction presumably contained in particles too small to detect. In the lower levels, half the mass was in particles < 200-400-mu-m. In the cloud sampled by the King Air, half the mass was in particles < 400-600-mu-m. Up to 10% of the mass in the higher cloud and up to 30% in the lower cloud was contained in particles > 500-mu-m. We relate the microstructure of a shallow liquid water layer associated with an altocumulus to lidar observations. Thirteen separate episodes of liquid water were sampled at about -30-degrees-C. Mean droplet dimensions were < 9 mu-m, and the liquid water contents were low. Virtually no ice particles were detected within and below the layer. We surmised that under such conditions these liquid water clouds remained colloidally stable. Kelvin-Helmholz waves may have produced the undulations observed at cloud top. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP HEYMSFIELD, AJ (reprint author), NATL CTR ATMOSPHER RES,POB 3000,BOULDER,CO 80307, USA. RI Heymsfield, Andrew/E-7340-2011 NR 33 TC 121 Z9 121 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 NOV PY 1990 VL 118 IS 11 BP 2313 EP 2328 DI 10.1175/1520-0493(1990)118<2313:TOFICC>2.0.CO;2 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000004 ER PT J AU SPINHIRNE, JD HART, WD AF SPINHIRNE, JD HART, WD TI CIRRUS STRUCTURE AND RADIATIVE PARAMETERS FROM AIRBORNE LIDAR AND SPECTRAL RADIOMETER OBSERVATIONS - THE 28 OCTOBER 1986 FIRE STUDY SO MONTHLY WEATHER REVIEW LA English DT Article ID CLOUD AB Remote sensing lidar and imaging spectral radiometer observations were obtained from the ER-2 high-altitude research aircraft during the 1986 FIRE cirrus missions. The dual polarization lidar measurements were nadir directed with 7.5 m vertical and 40 m horizontal resolution, and clearly depicted structure at the top and within the cirrus. Simultaneous radiometric cloud top images were acquired with 5 mrd resolution at ten visible channels, three infrared window channels, and four near-infrared channels. The combined lidar and radiometer data were analyzed for the cirrus structure, radiative parameters, and inferred microphysical properties. On 28 October 1986 a cirrus formation crossed Wisconsin. The results indicate that for the eastern edge of the formation there was a cirrus layer at 9 to 11 km altitude, and a separate lower cloud at 7 to 8 km. The lidar depolarization indicated the upper layer was ice crystals, the lower layer was ice in some areas, and water or possibly mixed phase in others. Split window thermal brightness measurements indicated the upper layer was principally particles of an effective radius less than 25-mu-m. To the west, the cirrus formation was a denser layer extending between 6 to 11 km altitude. An equivalent height for the thermal IR emission of cirrus was defined. The equivalent height was found to be as much as 4 km below the true cloud top height. The average vertical structure of radiation parameters was derived. For the upward infrared radiance the strongest contribution was from 7 to 8 km altitude but higher cirrus were significant. Cloud visible reflectance approached 0.6 and the 10.84-mu-m emittance ranged to 0.9. Distinct local variations in the relation between reflectance and emittance were found, while a significant dispersion of the emittance to reflectance relation for the entire dataset was present. The dispersion was principally due to variations in surface albedo. An overall parameterization for the average measured relation between emittance and visible albedo is given. C1 SCI SYST APPLICAT INC,LANHAM,MD. RP SPINHIRNE, JD (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,CODE 917,GREENBELT,MD 20771, USA. NR 21 TC 82 Z9 85 U1 0 U2 3 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 NOV PY 1990 VL 118 IS 11 BP 2329 EP 2343 DI 10.1175/1520-0493(1990)118<2329:CSARPF>2.0.CO;2 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000005 ER PT J AU WIELICKI, BA SUTTLES, JT HEYMSFIELD, AJ WELCH, RM SPINHIRNE, JD WU, MLC STARR, DO PARKER, L ARDUINI, RF AF WIELICKI, BA SUTTLES, JT HEYMSFIELD, AJ WELCH, RM SPINHIRNE, JD WU, MLC STARR, DO PARKER, L ARDUINI, RF TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - COMPARISON OF RADIATIVE-TRANSFER THEORY WITH OBSERVATIONS BY SATELLITE AND AIRCRAFT SO MONTHLY WEATHER REVIEW LA English DT Article ID HEXAGONAL ICE CRYSTALS; OPTICAL-PROPERTIES; LIGHT-SCATTERING; CLOUDS; WATER; REFLECTANCE; CONSTANTS; SENSORS AB Observations of cirrus and altocumulus clouds during the First International Satellite Cloud Climatology Project Regional Experiment (FIRE) are compared to theoretical models of cloud radiative properties. Three tests are performed. First, Landsat radiances are used to compare the relationship between nadir reflectance at 0.83-mu-m and beam emittance at 11.5-mu-m with that predicted by model calculations using spherical and nonspherical phase functions. Good agreement is found between observations and theory when water droplets dominate. Poor agreement is found when ice particles dominate, especially if scattering phase functions for spherical particles are used. Even when compared to a laboratory measured ice particle phase function (Volkovitskiy et al. 1980), the observations show increased side scattered radiation relative to the theoretical calculations. Second, the anisotropy of conservatively scattered radiation is examined using simultaneous multiple-angle views of the cirrus from Landsat and ER-2 aircraft radiometers. Observed anisotropy gives good agreement with theoretical calculations using the laboratory measured ice-particle phase function and poor agreement with a spherical-particle phase function. Third, Landsat radiances at 0.83-mu-m, 1.65-mu-m, and 2.21-mu-m are used to infer particle phase and particle size. For water droplets, good agreement is found with King Air FSSP particle probe measurements in the cloud. For ice particles, the Landsat radiance observations predict an effective radius of 60 mu-m versus aircraft observations of about 200-mu-m. It is suggested that this discrepancy may be explained by uncertainty in the imaginary index of ice and by inadequate measurements of small ice particles by microphysical probes. C1 NATL CTR ATMOSPHER RES,BOULDER,CO 80307. S DAKOTA SCH MINES & TECHNOL,RAPID CITY,SD 57701. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. LOCKHEED ENGN & SCI CORP,HAMPTON,VA. RP WIELICKI, BA (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,MAIL STOP 420,HAMPTON,VA 23665, USA. RI Heymsfield, Andrew/E-7340-2011 NR 45 TC 74 Z9 75 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 NOV PY 1990 VL 118 IS 11 BP 2356 EP 2376 DI 10.1175/1520-0493(1990)118<2356:TOFICC>2.0.CO;2 PG 21 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000007 ER PT J AU ACKERMAN, SA SMITH, WL SPINHIRNE, JD REVERCOMB, HE AF ACKERMAN, SA SMITH, WL SPINHIRNE, JD REVERCOMB, HE TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - SPECTRAL PROPERTIES OF CIRRUS CLOUDS IN THE 8-12 MU-M WINDOW SO MONTHLY WEATHER REVIEW LA English DT Article ID RADIATIVE PROPERTIES; PARAMETERIZATION; TEMPERATURE; REGION AB Lidar and high spectral resolution infrared radiance observations taken on board the ER-2 on 28 October 1986 are used to study the radiative properties of cirrus cloud in the 8-12 mu-m window region. Measurements from the High-spectral resolution Interferometer Sounder (HIS) indicate that the spectral variation of the equivalent blackbody temperature across the window can be greater than 5-degrees-C for a given cirrus cloud. This difference is attributed to the presence of small particles. A method for detecting cirrus clouds using 8-mu-m, 11-mu-m, and 12-mu-m bands is presented. The 8 mu-m band is centered on a weak water-vapor absorption line while the 11-mu-m and 12-mu-m bands are between absorption lines. The brightness temperature difference between the 8 and 11-mu-m bands is negative for clear regions, while for ice clouds it is positive. Differences in the 11 and-12 mu-m channels are positive, whether viewing a cirrus cloud or a clear region. Inclusion of the 8 mu-m channel therefore removes the ambiguity associated with the use of 11 and 12-mu-m channels alone. The method is based on the comparison of brightness temperatures observed in these three channels. The HIS and lidar observations were combined to derive the spectral effective beam emissivity (epsilon) of the cirrus clouds. Fifty percent of clouds on this day displayed a spectral variation of epsilon from 2-10%. These differences, in conjunction with large differences in the HIS observed brightness temperatures, indicate that cirrus clouds cannot be considered gray in the 8-12-mu-m window region. The derived spectral transmittance of the cloud is used to infer the effective radii of the particle size distribution, assuming ice spheres. For 28 October 1986 the effective radius of cirrus cloud particle size distribution (r(eff) was generally within the 30-40-mu-m range with 8% of the cases where 10 < r(eff) < 30-mu-m and 12% of the cases corresponding to r(eff) > 40-mu-m. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP ACKERMAN, SA (reprint author), UNIV WISCONSIN,CTR SPACE SCI & ENGN,COOPERAT INST METEOROL SATELLITE STUDIES,MADISON,WI 53706, USA. RI Ackerman, Steven/G-1640-2011 OI Ackerman, Steven/0000-0002-4476-0269 NR 15 TC 127 Z9 134 U1 0 U2 3 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 NOV PY 1990 VL 118 IS 11 BP 2377 EP 2388 DI 10.1175/1520-0493(1990)118<2377:TOFICC>2.0.CO;2 PG 12 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000008 ER PT J AU MINNIS, P YOUNG, DF SASSEN, K ALVAREZ, JM GRUND, CJ AF MINNIS, P YOUNG, DF SASSEN, K ALVAREZ, JM GRUND, CJ TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - CIRRUS PARAMETER RELATIONSHIPS DERIVED FROM SATELLITE AND LIDAR DATA SO MONTHLY WEATHER REVIEW LA English DT Article ID OPTICAL-PROPERTIES; HIGH CLOUDS; RADIATIVE PARAMETERS; DIURNAL VARIABILITY; SINGLE-SCATTERING; BISPECTRAL METHOD; REGIONAL CLOUD; ICE CRYSTALS; SOLAR; TEMPERATURE AB Cirrus cloud radiative and physical characteristics are determined using a combination of ground-based, aircraft, and satellite measurements taken as part of the FIRE Cirrus Intensive Field Observations (IFO) during October and November 1986. Lidar backscatter data are used with rawinsonde data to define cloud base, center, and top heights and the corresponding temperatures. Coincident GOES 4-km visible (0.65-mu-m) and 8-km infrared window (11.5-mu-m) radiances are analyzed to determine cloud emittances and reflectances. Infrared optical depth is computed from the emittance results. Visible optical depth is derived from reflectance using a theoretical ice crystal scattering model and an empirical bidirectional reflectance model. No clouds with visible optical depths greater than 5 or infrared optical depths less than 0.1 were used in the analysis. Average cloud thickness ranged from 0.5 km to 8.0 km for the 71 scenes. Mean vertical beam emittances derived from cloud-center temperatures were 0.62 for all scenes compared to 0.33 for the case study (27-28 October) reflecting the thinner clouds observed for the latter scenes. Relationships between cloud emittance, extinction coefficients, and temperature for the case study are very similar to those derived from earlier surface-based studies. The thicker clouds seen during the other IFO days yield different results. Emittances derived using cloud-top temperature were ratioed to those determined from cloud-center temperature. A nearly linear relationship between these ratios and cloud-center temperature holds promise for determining actual cloud-top temperatures and cloud thickness from visible and infrared radiance pairs. The mean ratio of the visible scattering optical depth to the infrared absorption optical depth was 2.13 for these data. This scattering efficiency ratio shows a significant dependence on cloud temperature. Values of mean scattering efficiency as high as 2.6 suggest the presence of small ice particles at temperatures below 230 K. The parameterization of visible reflectance in terms of cloud optical depth and clear-sky reflectance shows promise as a simplified method for interpreting visible satellite data reflected from cirrus clouds. Large uncertainties in the optical parameters due to cloud reflectance anisotropy and shading were found by analyzing data for various solar zenith angles and for simultaneous AVHRR data. Inhomogeneities in the cloud fields result in uneven cloud shading that apparently causes the occurrence of anomalously dark, cloudy pixels in the GOES data. These shading effects complicate the interpretation of the satellite data. The results highlight the need for additional study of cirrus cloud scattering processes and remote sensing techniques. C1 LOCKHEED ENGN & SCI CO,HAMPTON,VA. UNIV UTAH,DEPT METEOROL,SALT LAKE CITY,UT 84112. UNIV WISCONSIN,DEPT METEOROL,MADISON,WI 53706. RP MINNIS, P (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665, USA. RI Minnis, Patrick/G-1902-2010 OI Minnis, Patrick/0000-0002-4733-6148 NR 37 TC 32 Z9 32 U1 0 U2 4 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 NOV PY 1990 VL 118 IS 11 BP 2402 EP 2425 DI 10.1175/1520-0493(1990)118<2402:TOFICC>2.0.CO;2 PG 24 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000011 ER PT J AU MINNIS, P HECK, PW HARRISON, EF AF MINNIS, P HECK, PW HARRISON, EF TI THE 27-28 OCTOBER 1986 FIRE IFO CIRRUS CASE-STUDY - CLOUD PARAMETER FIELDS DERIVED FROM SATELLITE DATA SO MONTHLY WEATHER REVIEW LA English DT Article ID RADIATIVE PARAMETERS; DIURNAL VARIABILITY; REGIONAL CLOUD AB A methodology for estimating cirrus cloud amounts and altitudes using visible and infrared satellite data was developed and tested using FIRE Cirrus Intensive Field Observation (IFO) coincident lidar and satellite data with a theoretical cloud albedo model. On average, cloud center heights could be determined to within +/- 0.9 km of the lidar-derived values using the satellite data alone. Satellite-derived, total cloud tops are generally 0.5 +/- 0.9 km lower than the lidar cloud tops. If only high clouds are considered, the average cloud top is 0.1 +/- 0.6 km higher than the lidar cloud top. The accuracies of the lidar cloud-center and cloud-top heights are estimated to be within +/- 0.7 km of the actual values. Satellite-derived average cloud emittance and visible optical depths can be determined to within +/- 0.05 and +/- 0.13, respectively, of the reference cloud emittance. Cirrus cloud thickness was also derived. The satellite retrieval yields cloud depths that are 0.3 +/- 1.0 km thinner than the lidar-derived cloud thicknesses. The accuracy of the lidar-derived cloud depths is estimated to be 0.7 km. It was concluded that compared to a method which analyzes each pixel individually, a bispectral approach, which averages some of the pixel values before analysis, yields lower rms and bias errors in some of the derived parameter values. The technique was applied to GOES and AVHRR data taken during the daylight hours of the FIRE Cirrus IFO case study on a 0.5-degrees grid covering most of Wisconsin. Broadband radiation fields from the ERBE corresponding to the AVHRR results were also analyzed. During the afternoon of 27 October 1986, a cirrus field was tracked with the GOES data as it developed over northern Wisconsin. The satellite analyses revealed average cloud-top heights ranged between 9 and 11 km. Decreases in the outgoing longwave fluxes caused by the cloud appeared to be balanced by increases in the cloud albedo resulting in a negligible change in energy balance at the top of the atmosphere due to the cloud. During 28 October, the cloud fields were highly variable with both cirrus and midlevel clouds. An organized cirrus "wedge" developed and passed though the region during the middle of the day with cloud-top heights greater than 11 km. In addition to other cirrus clouds, an apparent cirrus convective complex passed through central Wisconsin during the afternoon with cloud tops between 10.0 km and the tropopause at approximately 11.3 km. A north-south line of clearing with scattered altocumulus separated the morning and afternoon cloud fields. This paper provides a comprehensive, quantified description of the case study clouds and should be useful for verifying ISCCP results and for improving the understanding of cirrus processes when combined with other IFO measurements. C1 LOCKHEED ENGN & SCI CO,HAMPTON,VA. RP MINNIS, P (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665, USA. RI Minnis, Patrick/G-1902-2010 OI Minnis, Patrick/0000-0002-4733-6148 NR 13 TC 25 Z9 25 U1 1 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 NOV PY 1990 VL 118 IS 11 BP 2426 EP 2446 DI 10.1175/1520-0493(1990)118<2426:TOFICC>2.0.CO;2 PG 21 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EQ430 UT WOS:A1990EQ43000012 ER PT J AU SEMBAY, S GEHRELS, N AF SEMBAY, S GEHRELS, N TI DESIGN CRITERIA FOR SMALL CODED APERTURE MASKS IN GAMMA-RAY ASTRONOMY SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT LA English DT Article RP SEMBAY, S (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771, USA. RI Gehrels, Neil/D-2971-2012 NR 20 TC 4 Z9 4 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 NOV 1 PY 1990 VL 295 IS 3 BP 477 EP 488 DI 10.1016/0168-9002(90)90729-P PG 12 WC Instruments & Instrumentation; Nuclear Science & Technology; Physics, Nuclear; Physics, Particles & Fields SC Instruments & Instrumentation; Nuclear Science & Technology; Physics GA EK231 UT WOS:A1990EK23100028 ER PT J AU FANSON, JL ANDERSON, EH RAPP, D AF FANSON, JL ANDERSON, EH RAPP, D TI ACTIVE STRUCTURES FOR USE IN PRECISION CONTROL OF LARGE OPTICAL-SYSTEMS SO OPTICAL ENGINEERING LA English DT Article RP FANSON, JL (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 38 TC 12 Z9 16 U1 0 U2 0 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD NOV PY 1990 VL 29 IS 11 BP 1320 EP 1327 DI 10.1117/12.55733 PG 8 WC Optics SC Optics GA EH372 UT WOS:A1990EH37200003 ER PT J AU ANDERSON, EH MOORE, DM FANSON, JL EALEY, MA AF ANDERSON, EH MOORE, DM FANSON, JL EALEY, MA TI DEVELOPMENT OF AN ACTIVE TRUSS ELEMENT FOR CONTROL OF PRECISION STRUCTURES SO OPTICAL ENGINEERING LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. LITTON ITEK OPT SYST,LEXINGTON,MA 02173. NR 15 TC 37 Z9 37 U1 0 U2 2 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD NOV PY 1990 VL 29 IS 11 BP 1333 EP 1341 PG 9 WC Optics SC Optics GA EH372 UT WOS:A1990EH37200005 ER PT J AU ANSARI, H METSCHER, B LESH, JR AF ANSARI, H METSCHER, B LESH, JR TI 3-DIMENSIONAL ACOUSTOOPTIC SPECTRUM ANALYSIS SO OPTICS LETTERS LA English DT Article RP ANSARI, H (reprint author), CALTECH,JET PROP LAB,MAIL STOP 161-135,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 3 TC 1 Z9 1 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0146-9592 J9 OPT LETT JI Opt. Lett. PD NOV 1 PY 1990 VL 15 IS 21 BP 1245 EP 1246 DI 10.1364/OL.15.001245 PG 2 WC Optics SC Optics GA EE893 UT WOS:A1990EE89300025 PM 19771055 ER PT J AU MANHART, PK AF MANHART, PK TI A JOINT EFFORT SO PHOTONICS SPECTRA LA English DT Letter RP MANHART, PK (reprint author), CALTECH,JET PROP LAB,OPT SCI & APPLICAT,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAURIN PUBL CO INC PI PITTSFIELD PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 SN 0731-1230 J9 PHOTON SPECTRA JI Photon. Spect. PD NOV PY 1990 VL 24 IS 11 BP 14 EP 14 PG 1 WC Optics SC Optics GA EH202 UT WOS:A1990EH20200002 ER PT J AU BHATIA, AK DRACHMAN, RJ AF BHATIA, AK DRACHMAN, RJ TI SEARCH FOR RESONANCES IN POSITRON-ATOM SYSTEMS SO PHYSICAL REVIEW A LA English DT Article RP BHATIA, AK (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771, USA. NR 11 TC 38 Z9 38 U1 1 U2 2 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 NOV 1 PY 1990 VL 42 IS 9 BP 5117 EP 5120 DI 10.1103/PhysRevA.42.5117 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900009 ER PT J AU HU, CY BHATIA, AK AF HU, CY BHATIA, AK TI 3-BODY RESONANCES IN TA-MU AND DA-MU SO PHYSICAL REVIEW A LA English DT Note C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP HU, CY (reprint author), UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024, USA. NR 14 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 NOV 1 PY 1990 VL 42 IS 9 BP 5769 EP 5772 DI 10.1103/PhysRevA.42.5769 PG 4 WC Optics; Physics, Atomic, Molecular & Chemical SC Optics; Physics GA EH119 UT WOS:A1990EH11900107 ER PT J AU JACKSON, HW MASON, PV AF JACKSON, HW MASON, PV TI 3RD-SOUND PROPAGATION IN THICK-FILMS OF SUPERFLUID HE-4 SO PHYSICAL REVIEW B LA English DT Article RP CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. NR 43 TC 2 Z9 2 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD NOV 1 PY 1990 VL 42 IS 13 BP 7825 EP 7854 DI 10.1103/PhysRevB.42.7825 PN A PG 30 WC Physics, Condensed Matter SC Physics GA EG488 UT WOS:A1990EG48800018 ER PT J AU HOLMAN, R KOLB, EW VADAS, SL YUN, W AF HOLMAN, R KOLB, EW VADAS, SL YUN, W TI FALSE-VACUUM DECAY IN GENERALIZED EXTENDED INFLATION SO PHYSICS LETTERS B LA English DT Article C1 NASA,FERMILAB ASTROPHYS CTR,FERMI NATL ACCELERATOR LAB,BATAVIA,IL 60510. UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637. UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. UNIV CHICAGO,ENRICO FERMI INST,CHICAGO,IL 60637. RP HOLMAN, R (reprint author), CARNEGIE MELLON UNIV,DEPT PHYS,PITTSBURGH,PA 15213, USA. RI Wang, Yun/B-5724-2011 OI Wang, Yun/0000-0002-4749-2984 NR 30 TC 12 Z9 12 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0370-2693 J9 PHYS LETT B JI Phys. Lett. B PD NOV 1 PY 1990 VL 250 IS 1-2 BP 24 EP 28 DI 10.1016/0370-2693(90)91148-5 PG 5 WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EJ959 UT WOS:A1990EJ95900006 ER PT J AU HADA, T KENNEL, CF BUTI, B MJOLHUS, E AF HADA, T KENNEL, CF BUTI, B MJOLHUS, E TI CHAOS IN DRIVEN ALFVEN SYSTEMS SO PHYSICS OF FLUIDS B-PLASMA PHYSICS LA English DT Article C1 UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024. UNIV CALIF LOS ANGELES,INST GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024. CALTECH,JET PROPULS LAB,PASADENA,CA 91125. UNIV TROMSO,INST MATH & PHYS SCI,N-9001 TROMSO,NORWAY. NR 34 TC 49 Z9 49 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8221 J9 PHYS FLUIDS B-PLASMA PD NOV PY 1990 VL 2 IS 11 BP 2581 EP 2590 DI 10.1063/1.859383 PG 10 WC Physics, Fluids & Plasmas SC Physics GA EH199 UT WOS:A1990EH19900008 ER PT J AU RAMATY, R LINGENFELTER, RE AF RAMATY, R LINGENFELTER, RE TI POSITRON DIAGNOSTICS OF THE GALAXY SO PHYSICS WORLD LA English DT Editorial Material RP RAMATY, R (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0953-8585 J9 PHYS WORLD JI Phys. World PD NOV PY 1990 VL 3 IS 11 BP 25 EP 26 PG 2 WC Physics, Multidisciplinary SC Physics GA EG203 UT WOS:A1990EG20300026 ER PT J AU VERTER, F AF VERTER, F TI CO OBSERVATIONS OF GALAXIES 1985-1989 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article RP VERTER, F (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 685,GREENBELT,MD 20771, USA. NR 33 TC 8 Z9 8 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD NOV PY 1990 VL 102 IS 657 BP 1281 EP 1300 DI 10.1086/132763 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EL441 UT WOS:A1990EL44100006 ER PT J AU SEDDOUGUI, SO AF SEDDOUGUI, SO TI A NONLINEAR INVESTIGATION OF THE STATIONARY MODES OF INSTABILITY OF THE 3-DIMENSIONAL COMPRESSIBLE BOUNDARY-LAYER DUE TO A ROTATING-DISK SO QUARTERLY JOURNAL OF MECHANICS AND APPLIED MATHEMATICS LA English DT Article RP SEDDOUGUI, SO (reprint author), NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665, USA. RI Stephen, Sharon/B-1011-2016 OI Stephen, Sharon/0000-0001-8204-8419 NR 16 TC 16 Z9 16 U1 0 U2 2 PU OXFORD UNIV PRESS UNITED KINGDOM PI OXFORD PA WALTON ST JOURNALS DEPT, OXFORD, ENGLAND OX2 6DP SN 0033-5614 J9 Q J MECH APPL MATH JI Q. J. Mech. Appl. Math. PD NOV PY 1990 VL 43 BP 467 EP 497 DI 10.1093/qjmam/43.4.467 PN 4 PG 31 WC Mathematics, Applied; Mechanics SC Mathematics; Mechanics GA EL620 UT WOS:A1990EL62000003 ER PT J AU GLAZMAN, RE AF GLAZMAN, RE TI NEAR-NADIR RADAR BACKSCATTER FROM A WELL-DEVELOPED SEA SO RADIO SCIENCE LA English DT Article ID GENERATED GRAVITY-WAVES; SPECTRA; GEOMETRY; RANGE; FIELD; MODEL AB Recent advances in understanding dynamics and statistical geometry of wind-generated gravity waves necessitate a re-examination of the radar return as a function of external factors. The Kirchhoff approximation for the case of well-developed seas is analyzed. In this peculiar case, the equilibrium range in the wave number spectrum (approximated by alpha-k-(4-2-mu) where mu > 0 can be interpreted as a fractal codimension of the surface) corresponds to a cascade pattern in the surface geometry. Its high wave number cutoff (the internal scale h), determined by the dissipation of energy due to wave breaking, is shown to be a major factor of the radar backscatter. This intrinsic scale is evaluated (h-approximately-0.4 m), and both the geometrical and the physical optics terms are related to major parameters of wind-wave dynamics. The range of validity of the Kirchhoff approximation and the relative importance of the diffraction correction are analyzed. Finally, the radar cross section sigma-0 of well-developed seas is compared with that of poorly developed seas (when mu = 0). The great qualitative difference shown in the wind speed dependence of sigma-0 for these two regimes is pointed out as a source of a considerable error trend recently discovered in satellite altimeter wind measurements. RP GLAZMAN, RE (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 30 TC 10 Z9 10 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0048-6604 J9 RADIO SCI JI Radio Sci. PD NOV-DEC PY 1990 VL 25 IS 6 BP 1211 EP 1219 DI 10.1029/RS025i006p01211 PG 9 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications GA EP194 UT WOS:A1990EP19400011 ER PT J AU MARKHAM, BL AHMAD, SP AF MARKHAM, BL AHMAD, SP TI RADIOMETRIC PROPERTIES OF THE NS001 THEMATIC MAPPER SIMULATOR AIRCRAFT MULTISPECTRAL SCANNER SO REMOTE SENSING OF ENVIRONMENT LA English DT Article AB The radiometry of the NS001 Thematic Mapper Simulator reflective channels was examined based on laboratory tests conducted between 1987 and 1989. Principal emphasis was on absolute calibration. The NS001 data are calibrated in-flight by reference to the NS001 internal integrating sphere source. Apparent instabilities in this source or its monitoring circuitry, which are not fully understood, are the principal limiting factors in the absolute calibration of NS001 data. Uncertainties due solely to this behavior may reach 25% in 1987, though more typically are expected to be less than 15%. Other identified error sources at the 1-2% level for typical signals include dark current drift along the scan line, hysteresislike sensitivity changes along the scan line, random noise, scan-speed-induced errors, and nonlinearity. Channel 7 (2.08-2.35-mu-m) shows a number of peculiarities that are hysteresislike including a change in the apparent dark current drift along scan with scene brightness and a drop in sensitivity in scanning across a bright target of an estimated 8% over the total 100-degrees scan angle. Polarization sensitivity of the NS001 was such that for typical atmospheric conditions errors in Channel 1 (.45-.52-mu-m) radiances would be up to +/- 10% and vary with scan angle; this progressively decreases with increasing wavelength. C1 ST SYST CORP,LANHAM,MD. RP MARKHAM, BL (reprint author), NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,CODE 923,GREENBELT,MD 20771, USA. RI Markham, Brian/M-4842-2013 OI Markham, Brian/0000-0002-9612-8169 NR 8 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD NOV PY 1990 VL 34 IS 2 BP 133 EP 149 DI 10.1016/0034-4257(90)90104-T PG 17 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA EZ588 UT WOS:A1990EZ58800005 ER PT J AU KAVANDI, J CALLIS, J GOUTERMAN, M KHALIL, G WRIGHT, D GREEN, E BURNS, D MCLACHLAN, B AF KAVANDI, J CALLIS, J GOUTERMAN, M KHALIL, G WRIGHT, D GREEN, E BURNS, D MCLACHLAN, B TI LUMINESCENT BAROMETRY IN WIND TUNNELS SO REVIEW OF SCIENTIFIC INSTRUMENTS LA English DT Article C1 UNIV WASHINGTON,CTR BIOENGN,SEATTLE,WA 98195. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP KAVANDI, J (reprint author), UNIV WASHINGTON,DEPT CHEM,BG-10,SEATTLE,WA 98195, USA. NR 15 TC 158 Z9 163 U1 0 U2 14 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 NOV PY 1990 VL 61 IS 11 BP 3340 EP 3347 DI 10.1063/1.1141632 PG 8 WC Instruments & Instrumentation; Physics, Applied SC Instruments & Instrumentation; Physics GA EH086 UT WOS:A1990EH08600002 ER PT J AU SAWANT, HS LATTARI, CJB BENZ, AO DENNIS, BR AF SAWANT, HS LATTARI, CJB BENZ, AO DENNIS, BR TI TIME DELAYS BETWEEN DECIMETRIC TYPE-III-RD BURSTS AND ASSOCIATED HARD X-RAYS SO REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA LA English DT Article; Proceedings Paper CT 6TH LATIN-AMERICAN REGIONAL CONF ON ASTRONOMY CY OCT 16-20, 1989 CL GRAMADO, BRAZIL SP INT ASTRON UNION DE SUN BURSTS; SUN-FLARES AB In July, 1985 radio observations were made at 1.6 GHz using 13.7 m Itapetinga antenna with time resolution of 3 ms. The hard X-ray observations were obtained from HXRBS on SMM. Comparison of 1.6 GHz observations with dynamic spectra in the frequency range of (1000-100) MHz and hard X-rays shows the following results: i) In 12 cases, we identify continuation of type III-RD bursts up to 1.6 GHz suggesting presence of type III-RD bursts at 1.6 GHz. ii) For the first time, we have identified hard X-ray peaks delayed in comparison to decimetric type III-RD bursts. These delays are longer-1 s-than expected (approximately 100 ms) and have been interpreted assuming that the decimetric emission is at 2 nd harmonic and caused by the leading edge of the exciter, whereas peaks of X-rays have been attributed to entire entry of the exciter into the X-ray producing region. C1 INST ASTRON,ZURICH,SWITZERLAND. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP SAWANT, HS (reprint author), INST PESQUISAS ESPACIAIS,DEPT ASTROFIS,CP 515,BR-12201 SAO JOSE CAMPOS,SP,BRAZIL. RI Dennis, Brian/C-9511-2012 NR 6 TC 0 Z9 0 U1 0 U2 0 PU UNIV NACIONAL AUTONOMA MEXICO, INST DE ASTRONOMIA PI MEXICO CITY PA APDO POSTAL 70-264, MEXICO CITY 04510, MEXICO SN 0185-1101 J9 REV MEX ASTRON ASTR JI Rev. Mex. Astron. Astrofis. PD NOV PY 1990 VL 21 IS SI BP 562 EP 566 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EM943 UT WOS:A1990EM94300128 ER PT J AU PRATT, JR STCLAIR, TL AF PRATT, JR STCLAIR, TL TI LARC-I-TPI - A STATUS-REPORT ON A NEW HIGH-PERFORMANCE, THERMOPLASTIC POLYIMIDE SO SAMPE JOURNAL LA English DT Article RP PRATT, JR (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 5 Z9 5 U1 1 U2 1 PU SAMPE PUBLISHERS PI COVINA PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 SN 0091-1062 J9 SAMPE J JI Sampe J. PD NOV-DEC PY 1990 VL 26 IS 6 BP 29 EP 34 PG 6 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EH217 UT WOS:A1990EH21700006 ER PT J AU MIAO, JH LAU, KM AF MIAO, JH LAU, KM TI UNSTABLE MODES IN MOIST ATMOSPHERE-OCEAN COUPLED SYSTEMS SO SCIENCE IN CHINA SERIES B-CHEMISTRY LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. RP MIAO, JH (reprint author), BEIJING INST MET,BEIJING 100081,PEOPLES R CHINA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU SCIENCE CHINA PRESS PI BEIJING PA 16 DONGHUANGCHENGGEN NORTH ST, BEIJING 100707, PEOPLES R CHINA SN 1001-652X J9 SCI CHINA SER B JI Sci. China Ser. B-Chem. PD NOV PY 1990 VL 33 IS 11 BP 1369 EP 1378 PG 10 WC Chemistry, Multidisciplinary SC Chemistry GA EJ730 UT WOS:A1990EJ73000011 ER PT J AU MILLIS, MG AF MILLIS, MG TI SPECULATING ON SPACE FUTURES SO SPACE POLICY LA English DT Editorial Material RP MILLIS, MG (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU BUTTERWORTH-HEINEMANN LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0265-9646 J9 SPACE POLICY JI Space Policy PD NOV PY 1990 VL 6 IS 4 BP 353 EP 356 DI 10.1016/0265-9646(90)90089-G PG 4 WC International Relations; Social Sciences, Interdisciplinary SC International Relations; Social Sciences - Other Topics GA EJ102 UT WOS:A1990EJ10200012 ER PT J AU DAWICKE, DS POE, CC NEWMAN, JC HARRIS, CE AF DAWICKE, DS POE, CC NEWMAN, JC HARRIS, CE TI AN EVALUATION OF THE PRESSURE PROOF TEST CONCEPT FOR THIN SHEET 2024-T3 SO THEORETICAL AND APPLIED FRACTURE MECHANICS LA English DT Article C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP DAWICKE, DS (reprint author), ANALYT SERV & MAT INC,HAMPTON,VA 23666, USA. NR 15 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-8442 J9 THEOR APPL FRACT MEC JI Theor. Appl. Fract. Mech. PD NOV PY 1990 VL 14 IS 2 BP 101 EP 116 DI 10.1016/0167-8442(90)90003-I PG 16 WC Engineering, Mechanical; Mechanics SC Engineering; Mechanics GA EM230 UT WOS:A1990EM23000003 ER PT J AU VASQUEZ, RP MARGALIT, R AF VASQUEZ, RP MARGALIT, R TI USE OF X-RAY PHOTOELECTRON-SPECTROSCOPY IN THE MEASUREMENT OF PROTEIN ORIENTATION ON SURFACES SO THIN SOLID FILMS LA English DT Article RP VASQUEZ, RP (reprint author), CALTECH,JET PROPUL LAB,PASADENA,CA 91109, USA. NR 29 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0040-6090 J9 THIN SOLID FILMS JI Thin Solid Films PD NOV 1 PY 1990 VL 192 IS 1 BP 173 EP 180 DI 10.1016/0040-6090(90)90489-Z PG 8 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Applied; Physics, Condensed Matter SC Materials Science; Physics GA EG350 UT WOS:A1990EG35000017 ER PT J AU RUBERTONE, JA HAROIAN, AJ VINCENT, SL MEHLER, WR AF RUBERTONE, JA HAROIAN, AJ VINCENT, SL MEHLER, WR TI THE RAT PARVOCELLULAR RETICULAR-FORMATION .1. AFFERENTS FROM THE CEREBELLAR NUCLEI SO NEUROSCIENCE LETTERS LA English DT Article C1 MCLEAN HOSP,MAILMAN RES CTR,BELMONT,MA 02178. NASA,AMES RES CTR,DIV BIOMED RES,MOFFETT FIELD,CA 94035. RP RUBERTONE, JA (reprint author), HAHNEMANN UNIV,DEPT ANAT,MS 408,BROAD & VINE,PHILADELPHIA,PA 19102, USA. NR 22 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0304-3940 J9 NEUROSCI LETT JI Neurosci. Lett. PD OCT 30 PY 1990 VL 119 IS 1 BP 79 EP 82 DI 10.1016/0304-3940(90)90760-7 PG 4 WC Neurosciences SC Neurosciences & Neurology GA EH378 UT WOS:A1990EH37800021 PM 1965863 ER PT J AU GREEN, S AF GREEN, S TI MOLECULAR ASTROPHYSICS - A VOLUME HONORING DALGARNO,ALEXANDER - HARTQUIST,TW SO SCIENCE LA English DT Book Review RP GREEN, S (reprint author), NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 26 PY 1990 VL 250 IS 4980 BP 576 EP 577 DI 10.1126/science.250.4980.576 PG 2 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EE660 UT WOS:A1990EE66000045 PM 17751488 ER PT J AU BERATAN, DN ONUCHIC, JN BETTS, JN BOWLER, BE GRAY, HB AF BERATAN, DN ONUCHIC, JN BETTS, JN BOWLER, BE GRAY, HB TI ELECTRON-TUNNELING PATHWAYS IN RUTHENATED PROTEINS SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY LA English DT Article C1 UNIV SAO PAULO,INST FIS & QUIM SAO CARLOS,SAO PAULO,BRAZIL. UNIV CALIF SAN DIEGO,DEPT PHYS,LA JOLLA,CA 92093. CALTECH,BECKMAN INST,PASADENA,CA 91125. RP BERATAN, DN (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. RI Beratan, David/C-5098-2011 NR 49 TC 214 Z9 215 U1 3 U2 15 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0002-7863 J9 J AM CHEM SOC JI J. Am. Chem. Soc. PD OCT 24 PY 1990 VL 112 IS 22 BP 7915 EP 7921 DI 10.1021/ja00178a011 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA EE663 UT WOS:A1990EE66300011 ER PT J AU HARDIN, JC MIAMEE, AG AF HARDIN, JC MIAMEE, AG TI CORRELATION AUTOREGRESSIVE PROCESSES WITH APPLICATION TO HELICOPTER NOISE SO JOURNAL OF SOUND AND VIBRATION LA English DT Article C1 HAMPTON UNIV,HAMPTON,VA 23668. RP HARDIN, JC (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 13 TC 12 Z9 13 U1 0 U2 0 PU ACADEMIC PRESS LTD PI LONDON PA 24-28 OVAL RD, LONDON, ENGLAND NW1 7DX SN 0022-460X J9 J SOUND VIB JI J. Sound Vibr. PD OCT 22 PY 1990 VL 142 IS 2 BP 191 EP 202 DI 10.1016/0022-460X(90)90551-A PG 12 WC Acoustics; Engineering, Mechanical; Mechanics SC Acoustics; Engineering; Mechanics GA EF158 UT WOS:A1990EF15800002 ER PT J AU WU, ST SUN, MT CHANG, HM HAGYARD, MJ GARY, GA AF WU, ST SUN, MT CHANG, HM HAGYARD, MJ GARY, GA TI ON THE NUMERICAL COMPUTATION OF NONLINEAR FORCE-FREE MAGNETIC-FIELDS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV ALABAMA,CTR SPACE PLASMA & AERON RES,HUNTSVILLE,AL 35899. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. RP WU, ST (reprint author), UNIV ALABAMA,DEPT MECH ENGN,HUNTSVILLE,AL 35899, USA. NR 41 TC 78 Z9 83 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 OCT 20 PY 1990 VL 362 IS 2 BP 698 EP 708 DI 10.1086/169307 PN 1 PG 11 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC225 UT WOS:A1990EC22500033 ER PT J AU KASTNER, SO BHATIA, AK AF KASTNER, SO BHATIA, AK TI EXPLICIT RELATIONS IN BOWEN FLUORESCENCE - APPLICATIONS TO NEBULAE, THE SUN, SCORPIUS X-1, AND LABORATORY PLASMAS SO ASTROPHYSICAL JOURNAL LA English DT Article RP NASA, GODDARD SPACE FLIGHT CTR, CODE 681, GREENBELT, MD 20771 USA. NR 27 TC 21 Z9 21 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND SN 0004-637X EI 1538-4357 J9 ASTROPHYS J JI Astrophys. J. PD OCT 20 PY 1990 VL 362 IS 2 BP 745 EP 757 DI 10.1086/169312 PN 1 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC225 UT WOS:A1990EC22500038 ER PT J AU TEREBEY, S BEICHMAN, CA GAUTIER, TN HESTER, JJ AF TEREBEY, S BEICHMAN, CA GAUTIER, TN HESTER, JJ TI THE CIRCUMSTELLAR ENVIRONMENT OF TMR-1 - A YOUNG, LOW-MASS STAR IN THE TAURUS MOLECULAR RING SO ASTROPHYSICAL JOURNAL LA English DT Article C1 CALTECH,PALOMAR OBSERV,PASADENA,CA 91125. RP TEREBEY, S (reprint author), CALTECH,JET PROPULS LAB,CTR INFRARED PROC & ANAL 100-22,PASADENA,CA 91125, USA. NR 20 TC 32 Z9 32 U1 2 U2 2 PU UNIV CHICAGO PRESS PI CHICAGO PA 5720 S WOODLAWN AVE, CHICAGO, IL 60637 SN 0004-637X J9 ASTROPHYS J JI Astrophys. J. PD OCT 20 PY 1990 VL 362 IS 2 BP L63 EP & DI 10.1086/185848 PN 2 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC226 UT WOS:A1990EC22600007 ER PT J AU SPIVAKOVSKY, CM WOFSY, SC PRATHER, MJ AF SPIVAKOVSKY, CM WOFSY, SC PRATHER, MJ TI A NUMERICAL-METHOD FOR PARAMETERIZATION OF ATMOSPHERIC CHEMISTRY - COMPUTATION OF TROPOSPHERIC OH SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, GODDARD SPACE FLIGHT CTR, INST SPACE STUDIES, GREENBELT, MD 20771 USA. NASA, GODDARD SPACE FLIGHT CTR, DEPT EARTH & PLANETARY SCI, GREENBELT, MD 20771 USA. RP SPIVAKOVSKY, CM (reprint author), HARVARD UNIV, DIV APPL SCI, CAMBRIDGE, MA 02138 USA. NR 6 TC 38 Z9 38 U1 1 U2 4 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 OCT 20 PY 1990 VL 95 IS D11 BP 18433 EP 18439 DI 10.1029/JD095iD11p18433 PG 7 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200004 ER PT J AU SPIVAKOVSKY, CM YEVICH, R LOGAN, JA WOFSY, SC MCELROY, MB PRATHER, MJ AF SPIVAKOVSKY, CM YEVICH, R LOGAN, JA WOFSY, SC MCELROY, MB PRATHER, MJ TI TROPOSPHERIC OH IN A 3-DIMENSIONAL CHEMICAL TRACER MODEL - AN ASSESSMENT BASED ON OBSERVATIONS OF CH3CCL3 SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 HARVARD UNIV, DEPT EARTH & PLANETARY SCI, CAMBRIDGE, MA 02138 USA. NASA, GODDARD SPACE FLIGHT CTR, INST SPACE STUDIES, GREENBELT, MD 20771 USA. RP SPIVAKOVSKY, CM (reprint author), HARVARD UNIV, DIV APPL SCI, CAMBRIDGE, MA 02138 USA. RI 欧阳, 冰洁/G-2925-2011 NR 90 TC 174 Z9 174 U1 1 U2 7 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 OCT 20 PY 1990 VL 95 IS D11 BP 18441 EP 18471 DI 10.1029/JD095iD11p18441 PG 31 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200005 ER PT J AU PRATHER, MJ GARCIA, MM DOUGLASS, AR JACKMAN, CH KO, MKW SZE, ND AF PRATHER, MJ GARCIA, MM DOUGLASS, AR JACKMAN, CH KO, MKW SZE, ND TI THE SPACE SHUTTLES IMPACT ON THE STRATOSPHERE SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, GODDARD SPACE FLIGHT CTR, GREENBELT, MD 20771 USA. ATMOSPHER & ENVIRONM RES INC, CAMBRIDGE, MA 02139 USA. RP PRATHER, MJ (reprint author), NASA, GODDARD INST SPACE STUDIES, 2880 BROADWAY, NEW YORK, NY 10025 USA. RI Douglass, Anne/D-4655-2012; Jackman, Charles/D-4699-2012; Ko, Malcolm/D-5898-2015 NR 17 TC 35 Z9 35 U1 0 U2 2 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 OCT 20 PY 1990 VL 95 IS D11 BP 18583 EP 18590 DI 10.1029/JD095iD11p18583 PG 8 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200015 ER PT J AU KAWA, SR FAHEY, DW SOLOMON, S BRUNE, WH PROFFITT, MH TOOHEY, DW ANDERSON, DE ANDERSON, LC CHAN, KR AF KAWA, SR FAHEY, DW SOLOMON, S BRUNE, WH PROFFITT, MH TOOHEY, DW ANDERSON, DE ANDERSON, LC CHAN, KR TI INTERPRETATION OF AIRCRAFT MEASUREMENTS OF NO, CLO, AND O3 IN THE LOWER STRATOSPHERE SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. PENN STATE UNIV, DEPT METEOROL, UNIVERSITY PK, PA 16802 USA. HARVARD UNIV, DEPT CHEM, CAMBRIDGE, MA 02138 USA. HARVARD UNIV, DEPT EARTH & PLANETARY SCI, CAMBRIDGE, MA 02138 USA. COMPUTAT PHYS INC, ANNANDALE, VA USA. UNIV COLORADO, NOAA, COOPERAT INST RES ENVIRONM SCI, BOULDER, CO 80309 USA. RP KAWA, SR (reprint author), NOAA, AERON LAB, 325 BROADWAY, BOULDER, CO 80303 USA. RI Toohey, Darin/A-4267-2008; Kawa, Stephan/E-9040-2012; Fahey, David/G-4499-2013 OI Toohey, Darin/0000-0003-2853-1068; Fahey, David/0000-0003-1720-0634 NR 58 TC 12 Z9 12 U1 0 U2 1 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 OCT 20 PY 1990 VL 95 IS D11 BP 18597 EP 18609 DI 10.1029/JD095iD11p18597 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200017 ER PT J AU HARRISON, EF MINNIS, P BARKSTROM, BR RAMANATHAN, V CESS, RD GIBSON, GG AF HARRISON, EF MINNIS, P BARKSTROM, BR RAMANATHAN, V CESS, RD GIBSON, GG TI SEASONAL-VARIATION OF CLOUD RADIATIVE FORCING DERIVED FROM THE EARTH RADIATION BUDGET EXPERIMENT SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 LOCKHEED ENGN & SCI CO, HAMPTON, VA 23666 USA. UNIV CHICAGO, DEPT GEOPHYS SCI, CHICAGO, IL 60637 USA. SUNY STONY BROOK, PLANETARY & ATMOSPHER RES, STONY BROOK, NY 11794 USA. RP HARRISON, EF (reprint author), NASA, LANGLEY RES CTR, DIV ATMOSPHER SCI, HAMPTON, VA 23665 USA. RI Minnis, Patrick/G-1902-2010 OI Minnis, Patrick/0000-0002-4733-6148 NR 32 TC 449 Z9 460 U1 3 U2 21 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 OCT 20 PY 1990 VL 95 IS D11 BP 18687 EP 18703 DI 10.1029/JD095iD11p18687 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200025 ER PT J AU PRATHER, M SPIVAKOVSKY, CM AF PRATHER, M SPIVAKOVSKY, CM TI TROPOSPHERIC OH AND THE LIFETIMES OF HYDROCHLOROFLUOROCARBONS SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES LA English DT Article C1 HARVARD UNIV, CTR EARTH & PLANETARY PHYS, CAMBRIDGE, MA 02138 USA. RP PRATHER, M (reprint author), NASA, GODDARD SPACE FLIGHT CTR, INST SPACE STUDIES, 2880 BROADWAY, NEW YORK, NY 10025 USA. NR 18 TC 110 Z9 110 U1 1 U2 6 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 OCT 20 PY 1990 VL 95 IS D11 BP 18723 EP 18729 DI 10.1029/JD095iD11p18723 PG 7 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EF932 UT WOS:A1990EF93200027 ER PT J AU SODERBLOM, LA KIEFFER, SW BECKER, TL BROWN, RH COOK, AF HANSEN, CJ JOHNSON, TV KIRK, RL SHOEMAKER, EM AF SODERBLOM, LA KIEFFER, SW BECKER, TL BROWN, RH COOK, AF HANSEN, CJ JOHNSON, TV KIRK, RL SHOEMAKER, EM TI TRITONS GEYSER-LIKE PLUMES - DISCOVERY AND BASIC CHARACTERIZATION SO SCIENCE LA English DT Article C1 ARIZONA STATE UNIV,TEMPE,AZ 85287. CALTECH,JET PROP LAB,PASADENA,CA 91109. HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138. RP SODERBLOM, LA (reprint author), US GEOL SURVEY,FLAGSTAFF,AZ 86001, USA. NR 21 TC 68 Z9 69 U1 0 U2 5 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 410 EP 415 DI 10.1126/science.250.4979.410 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600031 PM 17793016 ER PT J AU HILLIER, J HELFENSTEIN, P VERBISCER, A VEVERKA, J BROWN, RH GOGUEN, J JOHNSON, TV AF HILLIER, J HELFENSTEIN, P VERBISCER, A VEVERKA, J BROWN, RH GOGUEN, J JOHNSON, TV TI VOYAGER DISK-INTEGRATED PHOTOMETRY OF TRITON SO SCIENCE LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP HILLIER, J (reprint author), CORNELL UNIV,CTR RADIOPHYS & SPACE RES,ITHACA,NY 14853, USA. NR 23 TC 30 Z9 30 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 419 EP 421 DI 10.1126/science.250.4979.419 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600033 PM 17793017 ER PT J AU HANSEN, CJ MCEWEN, AS INGERSOLL, AP TERRILE, RJ AF HANSEN, CJ MCEWEN, AS INGERSOLL, AP TERRILE, RJ TI SURFACE AND AIRBORNE EVIDENCE FOR PLUMES AND WINDS ON TRITON SO SCIENCE LA English DT Article C1 US GEOL SURVEY,FLAGSTAFF,AZ 86001. CALTECH,PASADENA,CA 91125. RP HANSEN, CJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 10 TC 12 Z9 12 U1 1 U2 3 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 421 EP 424 DI 10.1126/science.250.4979.421 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600034 PM 17793018 ER PT J AU KIRK, RL BROWN, RH SODERBLOM, LA AF KIRK, RL BROWN, RH SODERBLOM, LA TI SUBSURFACE ENERGY-STORAGE AND TRANSPORT FOR SOLAR-POWERED GEYSERS ON TRITON SO SCIENCE LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP KIRK, RL (reprint author), US GEOL SURVEY,ASTROGEOL BRANCH,FLAGSTAFF,AZ 86001, USA. NR 19 TC 24 Z9 24 U1 2 U2 3 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 424 EP 429 DI 10.1126/science.250.4979.424 PG 6 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600035 PM 17793019 ER PT J AU NELSON, RM SMYTHE, WD WALLIS, BD HORN, LJ LANE, AL MAYO, MJ AF NELSON, RM SMYTHE, WD WALLIS, BD HORN, LJ LANE, AL MAYO, MJ TI TEMPERATURE AND THERMAL EMISSIVITY OF THE SURFACE OF NEPTUNE SATELLITE TRITON SO SCIENCE LA English DT Article RP NELSON, RM (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 12 TC 9 Z9 9 U1 0 U2 1 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 429 EP 431 DI 10.1126/science.250.4979.429 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600036 PM 17793020 ER PT J AU BROWN, RH KIRK, RL JOHNSON, TV SODERBLOM, LA AF BROWN, RH KIRK, RL JOHNSON, TV SODERBLOM, LA TI ENERGY-SOURCES FOR TRITONS GEYSER-LIKE PLUMES SO SCIENCE LA English DT Article C1 US GEOL SURVEY,ASTROGEOL BRANCH,FLAGSTAFF,AZ 86001. RP BROWN, RH (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 25 TC 29 Z9 29 U1 0 U2 3 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 431 EP 435 DI 10.1126/science.250.4979.431 PG 5 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600037 PM 17793021 ER PT J AU STROM, RG CROFT, SK BOYCE, JM AF STROM, RG CROFT, SK BOYCE, JM TI THE IMPACT CRATERING RECORD ON TRITON SO SCIENCE LA English DT Article C1 NASA HEADQUARTERS,WASHINGTON,DC 20546. RP STROM, RG (reprint author), UNIV ARIZONA,LUNAR & PLANETARY LAB,TUCSON,AZ 85721, USA. NR 11 TC 20 Z9 20 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 437 EP 439 DI 10.1126/science.250.4979.437 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600039 PM 17793023 ER PT J AU POLLACK, JB SCHWARTZ, JM RAGES, K AF POLLACK, JB SCHWARTZ, JM RAGES, K TI SCATTERERS IN TRITONS ATMOSPHERE - IMPLICATIONS FOR THE SEASONAL VOLATILE CYCLE SO SCIENCE LA English DT Article C1 CALTECH,DIV GEOL & PLANETARY SCI,PASADENA,CA 91125. SPACE PHYS RES INST,SUNNYVALE,CA 94087. RP POLLACK, JB (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035, USA. NR 22 TC 20 Z9 20 U1 0 U2 0 PU AMER ASSOC ADVANCEMENT SCIENCE PI WASHINGTON PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 SN 0036-8075 J9 SCIENCE JI Science PD OCT 19 PY 1990 VL 250 IS 4979 BP 440 EP 443 DI 10.1126/science.250.4979.440 PG 4 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED616 UT WOS:A1990ED61600040 PM 17793024 ER PT J AU BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H AF BAUSCHLICHER, CW LANGHOFF, SR PARTRIDGE, H TI BINDING-ENERGIES AND IONIZATION-POTENTIALS OF THE TETRAMERS OF CU, AG, AND AU - COMMENTS SO JOURNAL OF PHYSICAL CHEMISTRY LA English DT Letter RP BAUSCHLICHER, CW (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 8 TC 8 Z9 8 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0022-3654 J9 J PHYS CHEM-US JI J. Phys. Chem. 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NR 14 TC 41 Z9 45 U1 0 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 OCT 18 PY 1990 VL 347 IS 6294 BP 624 EP 624 DI 10.1038/347624a0 PG 1 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA ED620 UT WOS:A1990ED62000035 ER PT J AU WATANABE, WO CLARK, JH DUNHAM, JB WICKLUND, RI OLLA, BL AF WATANABE, WO CLARK, JH DUNHAM, JB WICKLUND, RI OLLA, BL TI CULTURE OF FLORIDA RED TILAPIA IN MARINE CAGES - THE EFFECT OF STOCKING DENSITY AND DIETARY-PROTEIN ON GROWTH SO AQUACULTURE LA English DT Article C1 FSU MARINE LAB,CARIBBEAN MARINE RES CTR,SOPCHOPPY,FL 32358. HATFIELD MARINE SCI CTR,NATL MARINE FISHERIES SERV,NW & ALASKA FISHERIES CTR,NEWPORT,OR 97365. RP WATANABE, WO (reprint author), CARIBBEAN MARINE RES CTR,100 E 17TH ST,RIVIERA BEACH,FL 33404, USA. NR 22 TC 30 Z9 34 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0044-8486 J9 AQUACULTURE JI Aquaculture PD OCT 15 PY 1990 VL 90 IS 2 BP 123 EP 134 DI 10.1016/0044-8486(90)90336-L PG 12 WC Fisheries; Marine & Freshwater Biology SC Fisheries; Marine & Freshwater Biology GA ED596 UT WOS:A1990ED59600003 ER PT J AU SCUSERIA, GE LEE, TJ AF SCUSERIA, GE LEE, TJ TI COMPARISON OF COUPLED-CLUSTER METHODS WHICH INCLUDE THE EFFECTS OF CONNECTED TRIPLE EXCITATIONS SO JOURNAL OF CHEMICAL PHYSICS LA English DT Article C1 RICE UNIV, RICE QUANTUM INST, HOUSTON, TX 77251 USA. NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. RP SCUSERIA, GE (reprint author), RICE UNIV, DEPT CHEM, HOUSTON, TX 77251 USA. RI Scuseria, Gustavo/F-6508-2011; Lee, Timothy/K-2838-2012 NR 44 TC 291 Z9 292 U1 0 U2 7 PU AMER INST PHYSICS PI MELVILLE PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA SN 0021-9606 J9 J CHEM PHYS JI J. Chem. Phys. PD OCT 15 PY 1990 VL 93 IS 8 BP 5851 EP 5855 DI 10.1063/1.459684 PG 5 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EE248 UT WOS:A1990EE24800055 ER PT J AU VAZQUEZ, J ZLOTNICKI, V FU, LL AF VAZQUEZ, J ZLOTNICKI, V FU, LL TI SEA-LEVEL VARIABILITIES IN THE GULF-STREAM BETWEEN CAPE-HATTERAS AND 50-DEGREES W - A GEOSAT STUDY SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article RP VAZQUEZ, J (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,MS 300-323,PASADENA,CA 91109, USA. NR 18 TC 37 Z9 37 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD OCT 15 PY 1990 VL 95 IS C10 BP 17957 EP & DI 10.1029/JC095iC10p17957 PG 0 WC Oceanography SC Oceanography GA ED734 UT WOS:A1990ED73400006 ER PT J AU MCCLAIN, CR ESAIAS, WE FELDMAN, GC ELROD, J ENDRES, D FIRESTONE, J DARZI, M EVANS, R BROWN, J AF MCCLAIN, CR ESAIAS, WE FELDMAN, GC ELROD, J ENDRES, D FIRESTONE, J DARZI, M EVANS, R BROWN, J TI PHYSICAL AND BIOLOGICAL PROCESSES IN THE NORTH-ATLANTIC DURING THE 1ST GARP GLOBAL EXPERIMENT SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS LA English DT Article C1 GEN SCI CORP,LAUREL,MD. UNIV MIAMI,ROSENSTIEL SCH MARINE & ATMOSPHER SCI,MIAMI,FL 33149. RP MCCLAIN, CR (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 971,GREENBELT,MD 20771, USA. NR 57 TC 41 Z9 41 U1 2 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES-OCEANS JI J. Geophys. Res.-Oceans PD OCT 15 PY 1990 VL 95 IS C10 BP 18027 EP 18048 DI 10.1029/JC095iC10p18027 PG 22 WC Oceanography SC Oceanography GA ED734 UT WOS:A1990ED73400012 ER PT J AU HECHT, MH BELL, LD KAISER, WJ DAVIS, LC AF HECHT, MH BELL, LD KAISER, WJ DAVIS, LC TI BALLISTIC-HOLE SPECTROSCOPY OF INTERFACES SO PHYSICAL REVIEW B LA English DT Note C1 FORD MOTOR CO, RES STAFF, DEARBORN, MI 48121 USA. RP CALTECH, JET PROP LAB, CTR SPACE MICROELECTR TECHNO, PASADENA, CA 91109 USA. NR 10 TC 37 Z9 37 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 OCT 15 PY 1990 VL 42 IS 12 BP 7663 EP 7666 DI 10.1103/PhysRevB.42.7663 PG 4 WC Physics, Condensed Matter SC Physics GA EF129 UT WOS:A1990EF12900054 ER PT J AU COPELAND, EJ KOLB, EW LIDDLE, AR AF COPELAND, EJ KOLB, EW LIDDLE, AR TI TOPOLOGICAL DEFECTS IN EXTENDED INFLATION SO PHYSICAL REVIEW D LA English DT Note C1 NASA,FERMILAB ASTROPHYS CTR,FERMI NAT ACCELERATOR LAB,BATAVIA,IL 60510. UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. RP COPELAND, EJ (reprint author), UNIV SUSSEX,DEPT PHYS,BRIGHTON BN1 9QH,E SUSSEX,ENGLAND. NR 22 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 0556-2821 J9 PHYS REV D JI Phys. Rev. D PD OCT 15 PY 1990 VL 42 IS 8 BP 2911 EP 2914 DI 10.1103/PhysRevD.42.2911 PG 4 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EE651 UT WOS:A1990EE65100052 ER PT J AU MOLINA, MJ COLUSSI, AJ MOLINA, LT SCHINDLER, RN TSO, TL AF MOLINA, MJ COLUSSI, AJ MOLINA, LT SCHINDLER, RN TSO, TL TI QUANTUM YIELD OF CHLORINE-ATOM FORMATION IN THE PHOTODISSOCIATION OF CHLORINE PEROXIDE (CLOOCL) AT 308 NM SO CHEMICAL PHYSICS LETTERS LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RI Colussi, Agustin/C-6520-2008 NR 16 TC 58 Z9 58 U1 1 U2 3 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0009-2614 J9 CHEM PHYS LETT JI Chem. Phys. Lett. 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NR 24 TC 149 Z9 158 U1 3 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 OCT 11 PY 1990 VL 347 IS 6293 BP 543 EP 545 DI 10.1038/347543a0 PG 3 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EC454 UT WOS:A1990EC45400048 ER PT J AU BICAY, MD HELOU, G AF BICAY, MD HELOU, G TI THE 60 MICRON TO 20 CENTIMETER INFRARED-TO-RADIO RATIO WITHIN SPIRAL GALAXIES SO ASTROPHYSICAL JOURNAL LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP BICAY, MD (reprint author), CALTECH,CTR INFRARED PROC & ANAL,PASADENA,CA 91125, USA. NR 34 TC 69 Z9 69 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 OCT 10 PY 1990 VL 362 IS 1 BP 59 EP 73 DI 10.1086/169243 PN 1 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA851 UT WOS:A1990EA85100007 ER PT J AU HILDEBRAND, RH GONATAS, DP PLATT, SR WU, XD DAVIDSON, JA WERNER, MW NOVAK, G MORRIS, M AF HILDEBRAND, RH GONATAS, DP PLATT, SR WU, XD DAVIDSON, JA WERNER, MW NOVAK, G MORRIS, M TI THE MAGNETIC-FIELD IN THE DUST RING AT THE CENTER OF THE GALAXY SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV CHICAGO,DEPT PHYS,CHICAGO,IL 60637. UNIV CHICAGO,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. UNIV MASSACHUSETTS,DEPT PHYS & ASTRON,AMHERST,MA 01003. UNIV CALIF LOS ANGELES,DEPT ASTRON,LOS ANGELES,CA 90024. RP HILDEBRAND, RH (reprint author), UNIV CHICAGO,ENRICO FERMI INST,5640 S ELLIS AVE,CHICAGO,IL 60637, USA. NR 31 TC 47 Z9 47 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 OCT 10 PY 1990 VL 362 IS 1 BP 114 EP 119 DI 10.1086/169248 PN 1 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA851 UT WOS:A1990EA85100012 ER PT J AU LUO, D MCCRAY, R LOW, MMM AF LUO, D MCCRAY, R LOW, MMM TI X-RAYS FROM COLLIDING STELLAR WINDS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 NASA,AMES RES CTR,AMES RES LAB,ASTROPHYS BRANCH,MOFFETT FIELD,CA 94035. COLUMBIA UNIV,ASTROPHYS LAB,NEW YORK,NY 10027. RP LUO, D (reprint author), UNIV COLORADO,NATL INST STAND & TECHNOL,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309, USA. OI Mac Low, Mordecai-Mark/0000-0003-0064-4060 NR 27 TC 122 Z9 122 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 OCT 10 PY 1990 VL 362 IS 1 BP 267 EP 273 DI 10.1086/169263 PN 1 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA851 UT WOS:A1990EA85100027 ER PT J AU SHORE, SN SAGE, LJ AF SHORE, SN SAGE, LJ TI MCG-06-45-001 - NOT A LOCAL GROUP GALAXY SO ASTROPHYSICAL JOURNAL LA English DT Article C1 MAX PLANCK INST RADIOASTRON,W-5300 BONN 1,GERMANY. RP SHORE, SN (reprint author), NASA,GODDARD SPACE FLIGHT CTR,COMP SCI CORP,GHRS SCI TEAM,CODE 681,GREENBELT,MD 20771, USA. NR 13 TC 2 Z9 2 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 OCT 10 PY 1990 VL 362 IS 1 BP L9 EP L12 DI 10.1086/185835 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA852 UT WOS:A1990EA85200003 ER PT J AU NOEVER, DA AF NOEVER, DA TI BIOCONVECTIVE PATTERNS, SYNCHRONY, AND SURVIVAL SO PHYSICAL REVIEW LETTERS LA English DT Article RP NOEVER, DA (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,ES-76,HUNTSVILLE,AL 35812, 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 0031-9007 J9 PHYS REV LETT JI Phys. Rev. Lett. PD OCT 8 PY 1990 VL 65 IS 15 BP 1953 EP 1956 DI 10.1103/PhysRevLett.65.1953 PG 4 WC Physics, Multidisciplinary SC Physics GA EB449 UT WOS:A1990EB44900031 ER PT J AU KUKKONEN, C AF KUKKONEN, C TI WHERE 2 FRONTIERS MEET SO AEROSPACE AMERICA LA English DT Article RP KUKKONEN, C (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0740-722X J9 AEROSPACE AM JI Aerosp. Am. PD OCT PY 1990 VL 28 IS 10 BP 20 EP 23 PG 4 WC Engineering, Aerospace SC Engineering GA ED673 UT WOS:A1990ED67300006 ER PT J AU PULLIAM, TH AF PULLIAM, TH TI COMPUTATIONAL CHALLENGE - EULER SOLUTION FOR ELLIPSES SO AIAA JOURNAL LA English DT Article RP PULLIAM, TH (reprint author), NASA,AMES RES CTR,DIV COMPUTAT FLUIDS,COMPUTAT FLUID DYNAM BRANCH,MOFFETT FIELD,CA 94035, USA. NR 6 TC 3 Z9 3 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. 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RP NAGABHUSANAM, J (reprint author), INDIAN INST SCI,BANGALORE 560012,KARNATAKA,INDIA. NR 8 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0001-1452 J9 AIAA J JI AIAA J. PD OCT PY 1990 VL 28 IS 10 BP 1836 EP 1842 PG 7 WC Engineering, Aerospace SC Engineering GA EH709 UT WOS:A1990EH70900030 ER PT J AU THOMPSON, CA TATRO, DL LUDWIG, DA CONVERTINO, VA AF THOMPSON, CA TATRO, DL LUDWIG, DA CONVERTINO, VA TI BAROREFLEX RESPONSES TO ACUTE CHANGES IN BLOOD-VOLUME IN HUMANS SO AMERICAN JOURNAL OF PHYSIOLOGY LA English DT Article C1 NASA,BIOMED OPERAT & RES OFF,LIFE SCI RES OFF,MAIL CODE MD-RES-P,KENNEDY SPACE CTR,FL 32899. BIONET CORP,KENNEDY SPACE CTR,FL 32899. UNIV N CAROLINA,DEPT MATH & STAT,GREENSBORO,NC 27412. NR 23 TC 66 Z9 66 U1 0 U2 1 PU AMER PHYSIOLOGICAL SOC PI BETHESDA PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 SN 0002-9513 J9 AM J PHYSIOL JI Am. J. Physiol. 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NR 5 TC 20 Z9 21 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0003-6935 J9 APPL OPTICS JI Appl. Optics PD OCT 1 PY 1990 VL 29 IS 28 BP 4293 EP 4302 PG 10 WC Optics SC Optics GA EC961 UT WOS:A1990EC96100056 PM 20577379 ER PT J AU FATHAUER, RW IANNELLI, JM NIEH, CW HASHIMOTO, S AF FATHAUER, RW IANNELLI, JM NIEH, CW HASHIMOTO, S TI INFRARED RESPONSE FROM METALLIC PARTICLES EMBEDDED IN A SINGLE-CRYSTAL SI MATRIX - THE LAYERED INTERNAL PHOTOEMISSION SENSOR SO APPLIED PHYSICS LETTERS LA English DT Article C1 CALTECH,KECK LAB ENGN,PASADENA,CA 91125. SUNY ALBANY,DEPT PHYS,ALBANY,NY 12222. SUNY ALBANY,INST PARTICLE SOLID INTERACT,ALBANY,NY 12222. RP FATHAUER, RW (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 8 TC 39 Z9 39 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0003-6951 J9 APPL PHYS LETT JI Appl. Phys. Lett. PD OCT 1 PY 1990 VL 57 IS 14 BP 1419 EP 1421 DI 10.1063/1.103453 PG 3 WC Physics, Applied SC Physics GA EA849 UT WOS:A1990EA84900016 ER PT J AU LIN, TL MASERJIAN, J AF LIN, TL MASERJIAN, J TI NOVEL SI1-XGEX/SI HETEROJUNCTION INTERNAL PHOTOEMISSION LONG-WAVELENGTH INFRARED DETECTORS SO APPLIED PHYSICS LETTERS LA English DT Article RP LIN, TL (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 22 TC 78 Z9 89 U1 0 U2 3 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 OCT 1 PY 1990 VL 57 IS 14 BP 1422 EP 1424 DI 10.1063/1.103454 PG 3 WC Physics, Applied SC Physics GA EA849 UT WOS:A1990EA84900017 ER PT J AU FEIBELMAN, WA BRUHWEILER, FC AF FEIBELMAN, WA BRUHWEILER, FC TI FG SAGITTAE - NO HOT COMPANION SO ASTRONOMICAL JOURNAL LA English DT Article C1 CATHOLIC UNIV AMER,DEPT PHYS,WASHINGTON,DC 20064. RP FEIBELMAN, WA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771, USA. NR 21 TC 3 Z9 3 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD OCT PY 1990 VL 100 IS 4 BP 1248 EP 1252 DI 10.1086/115592 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA860 UT WOS:A1990EA86000020 ER PT J AU SEKANINA, Z AF SEKANINA, Z TI GAS AND DUST EMISSION FROM COMETS AND LIFE SPANS OF ACTIVE AREAS ON THEIR ROTATING NUCLEI SO ASTRONOMICAL JOURNAL LA English DT Article RP SEKANINA, Z (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 173 TC 28 Z9 28 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD OCT PY 1990 VL 100 IS 4 BP 1293 EP & DI 10.1086/115598 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA860 UT WOS:A1990EA86000026 ER PT J AU SLADE, MA ZOHAR, S JURGENS, RF AF SLADE, MA ZOHAR, S JURGENS, RF TI VENUS - IMPROVED SPIN VECTOR FROM GOLDSTONE RADAR OBSERVATIONS SO ASTRONOMICAL JOURNAL LA English DT Article RP SLADE, MA (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 14 TC 9 Z9 9 U1 1 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0004-6256 J9 ASTRON J JI Astron. J. PD OCT PY 1990 VL 100 IS 4 BP 1369 EP & DI 10.1086/115603 PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EA860 UT WOS:A1990EA86000031 ER PT J AU ASCHWANDEN, MJ AF ASCHWANDEN, MJ TI THE SATURATION OF THE ELECTRON-CYCLOTRON MASER INSTABILITY AND THE INTERPRETATION OF SOLAR MILLISECOND SPIKES SO ASTRONOMY & ASTROPHYSICS LA English DT Article RP ASCHWANDEN, MJ (reprint author), NASA, GODDARD SPACE FLIGHT CTR, ASTRON & SOLAR PHYS LAB, CODE 6026, GREENBELT, MD 20771 USA. NR 28 TC 41 Z9 42 U1 0 U2 0 PU EDP SCIENCES S A PI LES ULIS CEDEX A PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A, FRANCE SN 0004-6361 J9 ASTRON ASTROPHYS JI Astron. Astrophys. PD OCT PY 1990 VL 237 IS 2 BP 512 EP 523 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EE015 UT WOS:A1990EE01500025 ER PT J AU HOLLIS, JM WRIGHT, MCH WELCH, WJ JEWELL, PR CRULL, HE KAFATOS, M MICHALITSIANOS, AG AF HOLLIS, JM WRIGHT, MCH WELCH, WJ JEWELL, PR CRULL, HE KAFATOS, M MICHALITSIANOS, AG TI COMPARISONS OF SIO MASER AND LONG-PERIOD VARIABLE POSITIONS IN THE R-AQUARII AND OMICRON CETI BINARY-SYSTEMS SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV CALIF BERKELEY,RADIO ASTRON LAB,BERKELEY,CA 94720. NATL RADIO ASTRON OBSERV,TUCSON,AZ 85721. USN OBSERV,DEPT ASTROMETRY,WASHINGTON,DC 20392. GEORGE MASON UNIV,DEPT PHYS,FAIRFAX,VA 22030. NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RP HOLLIS, JM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,DIV SPACE DATA & COMP,CODE 930,GREENBELT,MD 20771, USA. NR 23 TC 16 Z9 16 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 OCT 1 PY 1990 VL 361 IS 2 BP 663 EP 666 DI 10.1086/169229 PN 1 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DY969 UT WOS:A1990DY96900032 ER PT J AU MILLER, JA GUESSOUM, N RAMATY, R AF MILLER, JA GUESSOUM, N RAMATY, R TI STOCHASTIC FERMI ACCELERATION IN SOLAR-FLARES SO ASTROPHYSICAL JOURNAL LA English DT Article RP MILLER, JA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 665,GREENBELT,MD 20771, USA. RI Guessoum, Nidhal/C-3051-2013 NR 35 TC 57 Z9 57 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 OCT 1 PY 1990 VL 361 IS 2 BP 701 EP 708 DI 10.1086/169233 PN 1 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DY969 UT WOS:A1990DY96900036 ER PT J AU GAO, YT STECKER, FW GLEISER, M CLINE, DB AF GAO, YT STECKER, FW GLEISER, M CLINE, DB TI LARGE-SCALE ANISOTROPY IN THE EXTRAGALACTIC GAMMA-RAY BACKGROUND AS A PROBE FOR COSMOLOGICAL ANTIMATTER SO ASTROPHYSICAL JOURNAL LA English DT Article C1 UNIV CALIF LOS ANGELES,DEPT PHYS,LOS ANGELES,CA 90024. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY PHYS LAB,GREENBELT,MD 20771. UNIV CALIF SANTA BARBARA,INST THEORET PHYS,SANTA BARBARA,CA 93106. RP GAO, YT (reprint author), UNIV CALIF LOS ANGELES,DEPT ASTRON,LOS ANGELES,CA 90024, USA. RI Stecker, Floyd/D-3169-2012 NR 25 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 OCT 1 PY 1990 VL 361 IS 2 BP L37 EP L40 DI 10.1086/185821 PN 2 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA DY970 UT WOS:A1990DY97000001 ER PT J AU MATSON, PA VITOUSEK, PM AF MATSON, PA VITOUSEK, PM TI ECOSYSTEM APPROACH TO A GLOBAL NITROUS-OXIDE BUDGET SO BIOSCIENCE LA English DT Article C1 STANFORD UNIV,DEPT BIOL SCI,STANFORD,CA 94305. RP MATSON, PA (reprint author), NASA,AMES RES CTR,DIV EARTH SYST SCI,MOFFETT FIELD,CA 94035, USA. NR 47 TC 174 Z9 182 U1 2 U2 21 PU AMER INST BIOLOGICAL SCI PI WASHINGTON PA 1444 EYE ST, NW, STE 200, WASHINGTON, DC 20005 SN 0006-3568 J9 BIOSCIENCE JI Bioscience PD OCT PY 1990 VL 40 IS 9 BP 667 EP 671 DI 10.2307/1311434 PG 5 WC Biology SC Life Sciences & Biomedicine - Other Topics GA DZ701 UT WOS:A1990DZ70100009 ER PT J AU SELLERS, PJ RASOOL, SI BOLLE, HJ AF SELLERS, PJ RASOOL, SI BOLLE, HJ TI A REVIEW OF SATELLITE DATA ALGORITHMS FOR STUDIES OF THE LAND SURFACE SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY LA English DT Article C1 NASA,OFF SPACE SCI & APPLICAT,WASHINGTON,DC 20546. FREE UNIV BERLIN,INST METEROL,W-1000 BERLIN 33,GERMANY. RP SELLERS, PJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,923,GREENBELT,MD 20771, USA. NR 58 TC 51 Z9 51 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0003-0007 J9 B AM METEOROL SOC JI Bull. Amer. Meteorol. Soc. PD OCT PY 1990 VL 71 IS 10 BP 1429 EP 1447 DI 10.1175/1520-0477(1990)071<1429:AROSDA>2.0.CO;2 PG 19 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EE299 UT WOS:A1990EE29900002 ER PT J AU MULVAGH, SL CHARLES, JB FORTNEY, SM BUNGO, MW AF MULVAGH, SL CHARLES, JB FORTNEY, SM BUNGO, MW TI CHANGES IN PERIPHERAL VASCULAR-RESISTANCE MAY ACCOUNT FOR ORTHOSTATIC INTOLERANCE AFTER SPACE-FLIGHT SO CIRCULATION LA English DT Meeting Abstract C1 NASA,HOUSTON,TX 77058. UNIV SPACE RES ASSOC,HOUSTON,TX. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER HEART ASSOC PI DALLAS PA 7272 GREENVILLE AVENUE, DALLAS, TX 75231-4596 SN 0009-7322 J9 CIRCULATION JI Circulation PD OCT PY 1990 VL 82 IS 4 SU S BP 515 EP 515 PG 1 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA EC764 UT WOS:A1990EC76402058 ER PT J AU MULVAGH, SL CHARLES, JB REHBEIN, TL RIDDLE, JR BUNGO, MW AF MULVAGH, SL CHARLES, JB REHBEIN, TL RIDDLE, JR BUNGO, MW TI EFFECTS OF SPACE-FLIGHT ON CARDIOVASCULAR PERFORMANCE SO CIRCULATION LA English DT Meeting Abstract C1 NASA,HOUSTON,TX 77058. KRUG LIFE SCI INC,HOUSTON,TX. UNIV SPACE RES ASSOC,HOUSTON,TX. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER HEART ASSOC PI DALLAS PA 7272 GREENVILLE AVENUE, DALLAS, TX 75231-4596 SN 0009-7322 J9 CIRCULATION JI Circulation PD OCT PY 1990 VL 82 IS 4 SU S BP 721 EP 721 PG 1 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA EC764 UT WOS:A1990EC76402871 ER PT J AU SWANK, PR LEWIS, ML DAMRON, KL MORRISON, DR AF SWANK, PR LEWIS, ML DAMRON, KL MORRISON, DR TI PARALLEL LINE ANALYSIS - MULTIFUNCTIONAL SOFTWARE FOR THE BIO-MEDICAL SCIENCES SO COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE LA English DT Article C1 KRUG INT,DIV TECHNOL LIFE SCI,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP SWANK, PR (reprint author), UNIV HOUSTON,DEPT EDUC PSYCHOL,UNIV PK,HOUSTON,TX 77004, USA. NR 7 TC 1 Z9 1 U1 0 U2 1 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0169-2607 J9 COMPUT METH PROG BIO JI Comput. Meth. Programs Biomed. PD OCT PY 1990 VL 33 IS 2 BP 95 EP 105 DI 10.1016/0169-2607(90)90066-I PG 11 WC Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods; Engineering, Biomedical; Medical Informatics SC Computer Science; Engineering; Medical Informatics GA EK603 UT WOS:A1990EK60300005 PM 2289387 ER PT J AU FREEDMAN, AP PARSONS, B AF FREEDMAN, AP PARSONS, B TI GEOID ANOMALIES OVER 2 SOUTH-ATLANTIC FRACTURE-ZONES SO EARTH AND PLANETARY SCIENCE LETTERS LA English DT Article C1 UNIV OXFORD,DEPT EARTH SCI,OXFORD OX1 3PR,ENGLAND. RP FREEDMAN, AP (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. RI Parsons, Barry/K-4716-2012 NR 47 TC 11 Z9 11 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0012-821X J9 EARTH PLANET SC LETT JI Earth Planet. Sci. Lett. PD OCT PY 1990 VL 100 IS 1-3 BP 18 EP 41 DI 10.1016/0012-821X(90)90173-U PG 24 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA EH814 UT WOS:A1990EH81400002 ER PT J AU SHAHIDSALESS, B AF SHAHIDSALESS, B TI LOCAL GRAVITOMAGNETISM SO GENERAL RELATIVITY AND GRAVITATION LA English DT Article RP SHAHIDSALESS, B (reprint author), CALTECH,JET PROP LAB,CODE 301-150,PASADENA,CA 91109, USA. NR 19 TC 1 Z9 1 U1 1 U2 1 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0001-7701 J9 GEN RELAT GRAVIT JI Gen. Relativ. Gravit. PD OCT PY 1990 VL 22 IS 10 BP 1147 EP 1156 DI 10.1007/BF00759015 PG 10 WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA EC883 UT WOS:A1990EC88300006 ER PT J AU PIERI, DC GLAZE, LS ABRAMS, MJ AF PIERI, DC GLAZE, LS ABRAMS, MJ TI THERMAL RADIANCE OBSERVATIONS OF AN ACTIVE LAVA FLOW DURING THE JUNE 1984 ERUPTION OF MOUNT ETNA SO GEOLOGY LA English DT Article RP PIERI, DC (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. RI Glaze, Lori/D-1314-2012 NR 28 TC 81 Z9 81 U1 0 U2 3 PU GEOLOGICAL SOC AMERICA PI BOULDER PA PO BOX 9140 3300 PENROSE PLACE, BOULDER, CO 80301 SN 0091-7613 J9 GEOLOGY JI Geology PD OCT PY 1990 VL 18 IS 10 BP 1018 EP 1022 DI 10.1130/0091-7613(1990)018<1018:TROOAA>2.3.CO;2 PG 5 WC Geology SC Geology GA EC042 UT WOS:A1990EC04200024 ER PT J AU NEUBAUER, FM GLASSMEIER, KH COATES, AJ GOLDSTEIN, R ACUNA, MH MUSMANN, G AF NEUBAUER, FM GLASSMEIER, KH COATES, AJ GOLDSTEIN, R ACUNA, MH MUSMANN, G TI HYPERVELOCITY DUST PARTICLE IMPACTS OBSERVED BY THE GIOTTO MAGNETOMETER AND PLASMA-EXPERIMENTS SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 MULLARD SPACE SCI LAB,HOLMBURY ST MARY,ENGLAND. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. TECH UNIV BRAUNSCHWEIG,INST GEOPHYS METEOROL,W-3300 BRAUNSCHWEIG,GERMANY. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP NEUBAUER, FM (reprint author), UNIV COLOGNE,INST GEOPHYS & METEOROL,ALBERT MAGNUS PLATZ,W-5000 COLOGNE 41,GERMANY. RI Coates, Andrew/C-2396-2008 OI Coates, Andrew/0000-0002-6185-3125 NR 16 TC 16 Z9 16 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 OCT PY 1990 VL 17 IS 11 BP 1809 EP 1812 DI 10.1029/GL017i011p01809 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800002 ER PT J AU TSURUTANI, BT SMITH, EJ BUTI, B MATSUMTO, H BRINCA, A AF TSURUTANI, BT SMITH, EJ BUTI, B MATSUMTO, H BRINCA, A TI DISCRETE PHASE-CHANGES WITHIN NONLINEAR STEEPENED MAGNETOSONIC WAVES - COMET GIACOBINI-ZINNER SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article C1 PHYS RES LAB,AHMEDABAD 380009,GUJARAT,INDIA. KYOTO UNIV,RASC,UJI,KYOTO 611,JAPAN. INST SUPER TECN,CTR ELECTRODINAM,P-1096 LISBON,PORTUGAL. RP TSURUTANI, BT (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. 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PD OCT PY 1990 VL 17 IS 11 BP 2047 EP 2050 DI 10.1029/GL017i011p02047 PG 4 WC Geosciences, Multidisciplinary SC Geology GA EE728 UT WOS:A1990EE72800062 ER PT J AU BONDYOPADHYAY, PK AF BONDYOPADHYAY, PK TI 100 YEARS OF RADIO PROPAGATION SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION LA English DT Letter RP BONDYOPADHYAY, PK (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,MAIL CODE EE-3,BLDG 14,HOUSTON,TX 77058, USA. NR 27 TC 1 Z9 1 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-926X J9 IEEE T ANTENN PROPAG JI IEEE Trans. Antennas Propag. PD OCT PY 1990 VL 38 IS 10 BP 1723 EP 1726 DI 10.1109/8.59790 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EA874 UT WOS:A1990EA87400029 ER PT J AU STATMAN, JI HURD, WJ AF STATMAN, JI HURD, WJ TI AN ESTIMATOR-PREDICTOR APPROACH TO PLL LOOP FILTER DESIGN SO IEEE TRANSACTIONS ON COMMUNICATIONS LA English DT Article RP STATMAN, JI (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 7 TC 1 Z9 1 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0090-6778 J9 IEEE T COMMUN JI IEEE Trans. Commun. PD OCT PY 1990 VL 38 IS 10 BP 1667 EP 1668 DI 10.1109/26.61435 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EK996 UT WOS:A1990EK99600006 ER PT J AU HINEDI, S LINDSEY, WC AF HINEDI, S LINDSEY, WC TI INTERSYMBOL INTERFERENCE EFFECTS ON BPSK AND QPSK CARRIER TRACKING LOOPS SO IEEE TRANSACTIONS ON COMMUNICATIONS LA English DT Article C1 UNIV SO CALIF,ELECT ENGN,LOS ANGELES,CA 90089. RP HINEDI, S (reprint author), CALTECH,JET PROP LAB,COMMUN SYST RES SECT,PASADENA,CA 91109, USA. NR 9 TC 4 Z9 4 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0090-6778 J9 IEEE T COMMUN JI IEEE Trans. Commun. PD OCT PY 1990 VL 38 IS 10 BP 1670 EP 1676 DI 10.1109/26.61436 PG 7 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA EK996 UT WOS:A1990EK99600007 ER PT J AU CHOI, GS IYER, RK CARRENO, VA AF CHOI, GS IYER, RK CARRENO, VA TI SIMULATED FAULT INJECTION - A METHODOLOGY TO EVALUATE FAULT TOLERANT MICROPROCESSOR ARCHITECTURES SO IEEE TRANSACTIONS ON RELIABILITY LA English DT Article C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP CHOI, GS (reprint author), UNIV ILLINOIS,COORDINATED SCI LAB,CTR RELIABLE & HIGH PERFORMANCE COMP,1101 W SPRINGFIELD AVE,URBANA,IL 61801, USA. NR 24 TC 11 Z9 12 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9529 J9 IEEE T RELIAB JI IEEE Trans. Reliab. PD OCT PY 1990 VL 39 IS 4 BP 486 EP 491 DI 10.1109/24.58726 PG 6 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA EB790 UT WOS:A1990EB79000012 ER PT J AU CHANDRA, S AF CHANDRA, S TI RECENT TRENDS IN STRATOSPHERIC OZONE - IMPLICATIONS OF OZONE AND TEMPERATURE CORRELATION SO INDIAN JOURNAL OF RADIO & SPACE PHYSICS LA English DT Article RP CHANDRA, S (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHER CHEM & DYNAM BRANCH,CODE 916,GREENBELT,MD 20771, USA. NR 0 TC 3 Z9 3 U1 1 U2 1 PU COUNCIL SCIENTIFIC INDUSTRIAL RESEARCH PI NEW DELHI PA PUBL & INFO DIRECTORATE, NEW DELHI 110012, INDIA SN 0367-8393 J9 INDIAN J RADIO SPACE JI Indian J. Radio Space Phys. PD OCT-DEC PY 1990 VL 19 IS 5-6 BP 534 EP 541 PG 8 WC Astronomy & Astrophysics; Meteorology & Atmospheric Sciences SC Astronomy & Astrophysics; Meteorology & Atmospheric Sciences GA EG708 UT WOS:A1990EG70800025 ER PT J AU CHOUDHURY, BJ WANG, JR HSU, AY CHIEN, YL AF CHOUDHURY, BJ WANG, JR HSU, AY CHIEN, YL TI SIMULATED AND OBSERVED 37 GHZ EMISSION OVER AFRICA SO INTERNATIONAL JOURNAL OF REMOTE SENSING LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,SPACE & EARTH SCI DIRECTORATE,MICROWAVE SENSORS BRANCH,GREENBELT,MD 20771. SCI SYST & APPLICAT INC,SEABROOK,MD 20706. CENTEL FED SERV CORP,RESTON,VA 22090. RP CHOUDHURY, BJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,SPACE & EARTH SCI DIRECTORATE,HYDROL SCI BRANCH,GREENBELT,MD 20771, USA. NR 55 TC 24 Z9 24 U1 1 U2 2 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0143-1161 J9 INT J REMOTE SENS JI Int. J. Remote Sens. PD OCT PY 1990 VL 11 IS 10 BP 1837 EP 1868 PG 32 WC Remote Sensing; Imaging Science & Photographic Technology SC Remote Sensing; Imaging Science & Photographic Technology GA ED745 UT WOS:A1990ED74500011 ER PT J AU CHOUDHURY, BJ AF CHOUDHURY, BJ TI MONITORING ARID LANDS USING AVHRR-OBSERVED VISIBLE REFLECTANCE AND SMMR-37 GHZ POLARIZATION DIFFERENCE SO INTERNATIONAL JOURNAL OF REMOTE SENSING LA English DT Letter RP CHOUDHURY, BJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HYDROL SCI BRANCH,GREENBELT,MD 20771, USA. NR 18 TC 6 Z9 6 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI LONDON PA ONE GUNDPOWDER SQUARE, LONDON, ENGLAND EC4A 3DE SN 0143-1161 J9 INT J REMOTE SENS JI Int. J. Remote Sens. PD OCT PY 1990 VL 11 IS 10 BP 1949 EP 1956 PG 8 WC Remote Sensing; Imaging Science & Photographic Technology SC Remote Sensing; Imaging Science & Photographic Technology GA ED745 UT WOS:A1990ED74500019 ER PT J AU WEINMAN, JA MENEGHINI, R NAKAMURA, K AF WEINMAN, JA MENEGHINI, R NAKAMURA, K TI RETRIEVAL OF PRECIPITATION PROFILES FROM AIRBORNE RADAR AND PASSIVE RADIOMETER MEASUREMENTS - COMPARISON WITH DUAL-FREQUENCY RADAR MEASUREMENTS SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID HYDROMETEORS; RAINFALL AB This study compares precipitation rate profiles derived from a single frequency radar and radiometer with such profiles derived from a dual-frequency radar. Measurements obtained during the 1985-86 CRL/NASA rain measuring experiment from airborne X- and Ka-band radars and an X-band passive microwave radiometer were used to derive rainfall rate profiles over the Atlantic Ocean. The rainfall retrieval employs the classical Hitschfeld-Bordan radar equation constrained by a measurement of the path integrated extinction derived from passive radiometry. The path-integrated extinction obtained from the radiometric measurements was compared with that obtained from coincident dual-frequency radar reflection measurements from the ocean surface. The mean rainfall rate derived from the path-integrated extinction retrieved from the measured microwave radiances agreed within 25% with the mean rainfall rate obtained from the reflected radar signals. An analysis of the errors in the retrieval algorithm showed that errors in the path-integrated extinction significantly affect the retrieved rainfall profiles near the surface. A least squares linear extrapolation of the profile in the lowest kilometer was used to revise the boundary condition in the retrieval. The profiles were solved iteratively until the rainfall rate at the surface was within the range of scatter about the linear profile at higher altitudes. An optimization analysis was applied to the derivation of rainfall rate profiles retrieved from a dual-frequency radar data. The results of the retrieval were compared to those obtained from the radar-radiometer retrievals. The availability of only an X-band radiometer limited the retrieval of rainfall rate profiles to maritime cases. It appears that it will be possible to measure rainfall under most conditions when radiometers operating at several higher frequencies become available on future airborne radar experiments. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. COMMUN RES LABS,TOKYO,JAPAN. RP WEINMAN, JA (reprint author), UNIV WISCONSIN,DEPT METEOROL,1225 W DAYTON ST,MADISON,WI 53706, USA. NR 20 TC 24 Z9 24 U1 1 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD OCT PY 1990 VL 29 IS 10 BP 981 EP 993 DI 10.1175/1520-0450(1990)029<0981:ROPPFA>2.0.CO;2 PG 13 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN810 UT WOS:A1990EN81000001 ER PT J AU WANG, JR CHANG, LA AF WANG, JR CHANG, LA TI RETRIEVAL OF WATER-VAPOR PROFILES FROM MICROWAVE RADIOMETRIC MEASUREMENTS NEAR 90 AND 183 GHZ SO JOURNAL OF APPLIED METEOROLOGY LA English DT Article ID ATMOSPHERIC-TEMPERATURE; PRECIPITABLE WATER; MOISTURE PROFILES; WIND-SPEED; SURFACE; OCEANS AB Upwelling radiometric measurements at 90 GHz and three side bands near 183 GHz are used to retrieve water vapor profiles over the ocean surface. An algorithm incorporating a new technique of handling moderate cloud cover is illustrated for the profiling of both relative humidity and water vapor burden. It is shown that the retrieved relative humidity profiles reflect gross features of the corresponding profiles recorded by the radiosondes. However, the retrieval generally cannot produce fine details of the observed profiles at altitudes where a rapid change in relative humidity occurs. For this reason, comparison of retrieved and observed values at a given altitude often yields an appreciable rms error. Profiling of water vapor burden a parameter equivalent to total integrated water vapor above a certain altitude, results in much better agreement, as expected. The rms error obtained from the results of the retrieval at the surface is comparable to that derived from the combination of measurements at 18 GHz and 21 GHz channels of the Scanning Multichannel Microwave Radiometer aboard the Nimbus 7 satellite. C1 ST SYST CORP,LANHAM,MD. RP WANG, JR (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 675,GREENBELT,MD 20771, USA. NR 23 TC 23 Z9 23 U1 0 U2 2 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8763 J9 J APPL METEOROL JI J. Appl. Meteorol. PD OCT PY 1990 VL 29 IS 10 BP 1005 EP 1013 DI 10.1175/1520-0450(1990)029<1005:ROWVPF>2.0.CO;2 PG 9 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA EN810 UT WOS:A1990EN81000003 ER PT J AU KERKHOVEN, T GALICK, AT RAVAIOLI, U ARENDS, JH SAAD, Y AF KERKHOVEN, T GALICK, AT RAVAIOLI, U ARENDS, JH SAAD, Y TI EFFICIENT NUMERICAL-SIMULATION OF ELECTRON-STATES IN QUANTUM WIRES SO JOURNAL OF APPLIED PHYSICS LA English DT Article C1 UNIV ILLINOIS,CTR SUPERCOMP RES & DEV,URBANA,IL 61801. UNIV ILLINOIS,COORDINATED SCI LAB,URBANA,IL 61801. UNIV ILLINOIS,DEPT ELECT & COMP ENGN,URBANA,IL 61801. NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035. RP KERKHOVEN, T (reprint author), UNIV ILLINOIS,DEPT COMP SCI,URBANA,IL 61801, USA. NR 30 TC 54 Z9 54 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 OCT 1 PY 1990 VL 68 IS 7 BP 3461 EP 3469 DI 10.1063/1.346357 PG 9 WC Physics, Applied SC Physics GA ED736 UT WOS:A1990ED73600063 ER PT J AU LUBKEN, FJ VONZAHN, U MANSON, A MEEK, C HOPPE, UP SCHMIDLIN, FJ STEGMAN, J MURTAGH, DP RUSTER, R SCHMIDT, G WIDDEL, HU ESPY, P AF LUBKEN, FJ VONZAHN, U MANSON, A MEEK, C HOPPE, UP SCHMIDLIN, FJ STEGMAN, J MURTAGH, DP RUSTER, R SCHMIDT, G WIDDEL, HU ESPY, P TI MEAN STATE DENSITIES, TEMPERATURES AND WINDS DURING THE MAC SINE AND MAC EPSILON CAMPAIGNS SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article ID MIDDLE ATMOSPHERE; SASKATOON 52-DEGREES-N; LOWER THERMOSPHERE; UPPER MESOSPHERE; GRAVITY-WAVE; VHF RADAR; MESOPAUSE; TIDES; SOLAR; WINTER AB During 1987 two major field campaigns were conducted, mainly in northern Norway (in summer and late autumn), in which a total of 41 (26 + 15) in-situ temperature profiles were obtained by different techniques such as passive falling spheres, ionization gauges and mass spectrometers. Simultaneously, ground-based measurements of OH-temperatures and sodium lidar temperatures were performed for approximately 85 h and 104 h, respectively. In addition, a total of 67 (37 + 30) wind profiles were measured by in-situ techniques. Several radar systems measured winds almost continuously before, during and after the campaigns. The mean temperature profile for the summer campaign showed major deviations from a recently published reference atmosphere (CIRA 1986), whereas the differences between observations and model are smaller in autumn. In general, both the summer and autumn mean wind profiles agreed with CIRA 1986. Minor differences were attributed to tidal biases of the observations and ageostrophic components. C1 UNIV SASKATCHEWAN,INST SPACE & ATMOSPHER STUDIES,SASKATOON S7N 0W0,SASKATCHEWAN,CANADA. NORWEGIAN DEF RES ESTAB,N-2007 KJELLER,NORWAY. NASA,GODDARD SPACE FLIGHT CTR,WALLOPS ISL,VA. UNIV STOCKHOLM,DEPT METEOROL,S-10691 STOCKHOLM,SWEDEN. MAX PLANCK INST AERON,W-3411 KATLENBURG-DUHM,GERMANY. UTAH STATE UNIV,SPACE DYNAM LAB,LOGAN,UT 84322. RP LUBKEN, FJ (reprint author), UNIV BONN,INST PHYS,NUSSALLEE 12,W-5300 BONN 1,GERMANY. RI Murtagh, Donal/F-8694-2011 OI Murtagh, Donal/0000-0003-1539-3559 NR 53 TC 39 Z9 41 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD OCT-NOV PY 1990 VL 52 IS 10-11 BP 955 EP 970 DI 10.1016/0021-9169(90)90027-K PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER692 UT WOS:A1990ER69200011 ER PT J AU CROSKEY, CL HALE, LC MITCHELL, JD SCHMIDLIN, FJ HOPPE, UP AF CROSKEY, CL HALE, LC MITCHELL, JD SCHMIDLIN, FJ HOPPE, UP TI ELECTRIC-FIELD MEASUREMENTS DURING THE MAC EPSILON CAMPAIGN SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article ID MIDDLE-ATMOSPHERE; REGIONS AB As part of the MAC/EPSILON campaign in northern Norway during October and November 1987, five rocket-borne payloads made three-axis electric field measurements of the middle atmosphere. Flights 31.066 and 31.067 consisted of large multi-experiment packages, while the other three flights (30.036, 30.037 and 30.038) were devoted primarily to electrical measurements. Simultaneous measurements of the horizontal electric field made by flights 31.066 and 30.036 were in general agreement in their limited altitude region of overlap. A simultaneous small temporal feature was observed in both datasets. The relatively more extensive horizontal E-field datasets from 31.066 and 31.067 both exhibited a decreasing mapping function with decreasing altitude, which is an indication of the observation of field from a local auroral patch. Small-scale variations in the horizontal fields of the flights were similar to observed wave-like variations in the neutral wind field. No unusual features were observed at high altitudes in the measured E[[ field. Two of the payloads observed small vertical layer structures between 40 and 50 km. No electric field structure was observed in association with the presence of a sudden sodium layer. C1 NASA,GODDARD SPACE FLIGHT CTR,WALLOPS FLIGHT FACIL,WALLOPS ISL,VA 23337. NORWEGIAN DEF RES ESTAB,N-2007 KJELLER,NORWAY. RP CROSKEY, CL (reprint author), PENN STATE UNIV,DEPT ELECT ENGN,COMMUN & SPACE SCI LAB,UNIVERSITY PK,PA 16802, USA. NR 43 TC 5 Z9 5 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD OCT-NOV PY 1990 VL 52 IS 10-11 BP 1055 EP 1065 DI 10.1016/0021-9169(90)90035-L PG 11 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER692 UT WOS:A1990ER69200019 ER PT J AU GOLDBERG, RA CROSKEY, CL HALE, LC MITCHELL, JD BARCUS, JR AF GOLDBERG, RA CROSKEY, CL HALE, LC MITCHELL, JD BARCUS, JR TI ELECTRODYNAMIC RESPONSE OF THE MIDDLE ATMOSPHERE TO AURORAL PULSATIONS SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article ID SOLAR PROTON EVENTS; QUASI-STATIC MODEL; STRATOSPHERIC OZONE; ENERGY DEPOSITION; ELECTRON-PRECIPITATION; MESOSPHERE; DEPLETION; ELECTRICITY; CHEMISTRY; CYCLE-21 AB On the nights of 21 and 28 October 1987, two Nike Orion payloads (NASA 31.066 and 31.067) were launched from Andoya, Norway, as part of the MAC/EPSILON campaign, to study the effect of auroral energetics on the middle atmosphere. Each payload carried detectors to measure relativistic electrons from 0.1 to 1.0 MeV in 12 differential energy channels, the bremsstrahlung X-rays from > 5 to > 80 keV in 5 integral channels. In addition, instrumentation to measure bulk ion properties and electric fields was also carried by these and/or near simultaneous flights. Flight 31.066 was launched during the recovery phase of a moderate magnetic substorm, during relatively stable auroral conditions. Flight 31.067 was launched during highly active post-break-up conditions during which Pc5 pulsations (> 150 s period) were in progress. The energetic radiation of the first event was composed almost entirely of relativistic electrons below 200 keV with negligible contributions from bremsstrahlung X-rays, while the radiation of the second event was dominated by much softer electrons (< 100 keV), which produced high X-ray fluxes that exceeded the cosmic ray background as an ionizing source down to altitudes below 30 km. Simultaneous conductivity measurements during both events show consistency with the ionizing radiations, with the pulsation event producing free electrons down to 55 km. far below their expected altitude range during night-time. These comparisons are discussed to evaluate the impact of such events on the middle atmosphere. C1 PENN STATE UNIV,DEPT ELECT ENGN CSSL,UNIVERSITY PK,PA 16802. UNIV DENVER,DENVER,CO 80208. RP GOLDBERG, RA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771, USA. RI Goldberg, Richard /E-1881-2012 NR 45 TC 8 Z9 8 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD OCT-NOV PY 1990 VL 52 IS 10-11 BP 1067 EP 1084 DI 10.1016/0021-9169(90)90036-M PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER692 UT WOS:A1990ER69200020 ER PT J AU MITCHELL, JD CROSKEY, CL BLOOD, SP LI, C HALE, LC GOLDBERG, RA AF MITCHELL, JD CROSKEY, CL BLOOD, SP LI, C HALE, LC GOLDBERG, RA TI MIDDLE ATMOSPHERE ELECTRICAL STRUCTURE DURING MAC EPSILON SO JOURNAL OF ATMOSPHERIC AND TERRESTRIAL PHYSICS LA English DT Article ID MOBILITY; IONS; CONDUCTIVITY; PARAMETERS; MESOPAUSE; ROCKET; RADAR; MASS AB Extensive use of rocket-launched probes during the MAC/EPSILON campaign at the Andoya Rocket Range, Norway, has enabled the characterization of the region's electrical environment for all four flight series. The first rocket salvo was conducted during daylight (15 October 1987) and the subsequent three occurred at night (21 and 28 October and 12 November 1987), all of them during geomagnetically disturbed conditions. Measurements of polar electrical conductivity, ion mobility and number density are presented, and their associated structure is investigated for local auroral ionization effects. This is believed to be the first time that Gerdien condenser mobility measurements have indicated a heavy-ion presence (positively charged aerosols) in the auroral mesopause region. C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP MITCHELL, JD (reprint author), PENN STATE UNIV,DEPT ELECT ENGN,COMMUN & SPACE SCI LAB,UNIVERSITY PK,PA 16802, USA. RI Goldberg, Richard /E-1881-2012 NR 24 TC 12 Z9 12 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0021-9169 J9 J ATMOS TERR PHYS JI J. Atmos. Terr. Phys. PD OCT-NOV PY 1990 VL 52 IS 10-11 BP 1095 EP 1104 DI 10.1016/0021-9169(90)90038-O PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA ER692 UT WOS:A1990ER69200022 ER PT J AU SPENCER, RW CHRISTY, JR GRODY, NC AF SPENCER, RW CHRISTY, JR GRODY, NC TI GLOBAL ATMOSPHERIC-TEMPERATURE MONITORING WITH SATELLITE MICROWAVE MEASUREMENTS - METHOD AND RESULTS 1979-84 SO JOURNAL OF CLIMATE LA English DT Article AB A method for measuring global atmospheric temperature anomalies to a high level of precision from satellites is demonstrated. Global data from the Microwave Sounding Units (MSUs), flying on NOAA satellites since late 1978, have been analyzed to determine the extent to which these data can reveal atmospheric temperature anomalies on bidaily and longer time scales for regional and larger space scales. The global sampling provided by the MSUs is an important asset, with most of the earth sampled bidaily from each of (typically) two instruments flying concurrently on separate satellites at different solar times. The primary source of tropospheric thermal information is from the MSU 53.74 GHz channel. This channel is primarily sensitive to thermal emission from molecular oxygen in the middle troposphere, with relatively little sensitivity to water vapor, the earth's surface, and cloud (especially cirrus) variations. The long-term stability of the oxygen mixing ratio in the atmosphere makes it an ideal tracer for climate monitoring purposes. Lower stratospheric temperature anomalies are derived from the MSU 57.95 GHz channel. Comparisons between monthly MSU temperature anomalies and corresponding thermometer-measured anomalies for the United States reveal a high (0.9) correlation, but hemispheric anomalies show much lower correlations. This results from some combination of poor thermometer sampling of remote regions and weak coupling of surface and deep-tropospheric temperature anomalies in tropical areas. Analysis of data from two of the MSUs (on NOAA-6 and NOAA-7), whose operational periods overlapped by two years, reveals that hemispheric temperature anomalies measured by the separate instruments are very similar (to about 0.01-degrees-C) on monthly time scales. Their combined time series of unfiltered two-day hemispheric averages show standard deviations of their mean of 0.15-degrees-0.20-degrees-C and standard deviations of their average difference of 0.02-degrees-0.03-degrees-C, indicating a signal-to-noise ratio of 40 for the Southern Hemisphere and 45 for the Northern Hemisphere. The intercomparison period also reveals no evidence of calibration drift between satellites at the 0.01-degrees-C level. This was substantiated by two 15-month comparisons of NOAA-6 with rawinsonde data from 45 stations in the eastern United States, which revealed 0.013-degrees-C net difference over five years. Monthly averaged comparisons between individual rawinsonde and NOAA-6 data from 1980 through 1982 reveal a monthly standard deviation of their difference of 0.04-degrees-C. The statistical and geophysical portions of this noise are found to be about equal in magnitude, 0.03-degrees-C. The single-satellite noise due to imperfect sampling for ten-day, 2.5-degrees gridpoint temperatures was calculated by measuring the standard deviation of the difference between two satellites with ranges from 0.2-degrees-C in the tropics to 0.4-degrees-C in middle latitudes. The period of analysis (1979-84) reveals that Northern and Southern hemispheric tropospheric temperature anomalies (from the six-year mean) are positively correlated on multiseasonal time scales but negatively correlated on shorter time scales. The 1983 ENSO dominates the record, with early 1983 zonally averaged tropical temperatures up to 0.6-degrees-C warmer than the average of the remaining years. These natural variations are much larger than that expected of greenhouse enhancements, and so it is likely that a considerably longer period of satellite record must accumulate for any longer-term trends to be revealed. RP SPENCER, RW (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,DIV EARTH SCI & APPLICAT,E543,HUNTSVILLE,AL 35812, USA. NR 0 TC 99 Z9 100 U1 0 U2 5 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD OCT PY 1990 VL 3 IS 10 BP 1111 EP 1128 DI 10.1175/1520-0442(1990)003<1111:GATMWS>2.0.CO;2 PG 18 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC722 UT WOS:A1990FC72200005 ER PT J AU FU, R DELGENIO, AD ROSSOW, WB AF FU, R DELGENIO, AD ROSSOW, WB TI BEHAVIOR OF DEEP CONVECTIVE CLOUDS IN THE TROPICAL PACIFIC DEDUCED FROM ISCCP RADIANCES SO JOURNAL OF CLIMATE LA English DT Article AB We analyze the properties of deep convection over the equatorial Pacific and its relationship to sea surface temperature (SST) and surface wind divergence using ISCCP radiance data for July 1983 and January 1984. Deep convective clouds (DCC) are diagnosed with both a combined visible-infrared threshold method and an infrared-only threshold method. The visible channel is important in diagnosing deep convection in different regions with different surface and atmospheric properties because of the existence of large-scale variations of DCC top altitudes. The ITCZ and SPCZ exhibit changes in these two months that are characteristic of both the El Nino and seasonal cycles. Deep convection is latitudinally confined to a much smaller spatial scale than that suggested by maps of outgoing longwave radiation. Diurnal variations of DCC cover and associated mesoscale cirrus/anvil cloud (CAC) cover are out of phase, with deep convection peaking in the early morning throughout the equatorial Pacific. The diurnal cycle is strongest in the west Pacific and Indonesia, where deep convection is most intense. DCC top temperatures are at a minimum several hours before the maximum in DCC cover and out of phase with CAC top temperatures. Two types of relationships between deep convection, SST, and surface wind convergence are suggested: 1) When a large area within a region is covered by SSTs greater than 28-degrees-C, deep convection is enhanced in areas where SST exceeds 28-degrees-C in the absence of strong surface divergence. Strong monthly mean surface convergence does not enhance deep convection in this case. 2) When the warmest SSTs in a region are less than about 28-degrees-C, deep convection is significantly enhanced by strong surface wind convergence near the local maximum in SST (26-degrees-28-degrees). An analysis of a slightly different version of the ISCCP data for the period July 1983-July 1985 suggests that the first type of relationship is the typical situation in the west Pacific, while the second relationship is most obvious in non-El Nino northern winters in the east Pacific. DCC top height generally increases as SST increases, but the visible reflectance of DCC does not vary strongly with SST. RP FU, R (reprint author), NASA,GODDARD SPACE FLIGHT CTR,INST SPACE STUDIES,2880 BROADWAY,NEW YORK,NY 10025, USA. RI Fu, Rong/B-4922-2011; Del Genio, Anthony/D-4663-2012; Rossow, William/F-3138-2015 OI Del Genio, Anthony/0000-0001-7450-1359; NR 0 TC 142 Z9 144 U1 0 U2 6 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108-3693 SN 0894-8755 J9 J CLIMATE JI J. Clim. PD OCT PY 1990 VL 3 IS 10 BP 1129 EP 1152 DI 10.1175/1520-0442(1990)003<1129:BODCCI>2.0.CO;2 PG 24 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA FC722 UT WOS:A1990FC72200006 ER PT J AU MAVRIPLIS, DJ AF MAVRIPLIS, DJ TI ADAPTIVE MESH GENERATION FOR VISCOUS FLOWS USING DELAUNAY TRIANGULATION SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article RP MAVRIPLIS, DJ (reprint author), NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665, USA. NR 22 TC 48 Z9 48 U1 0 U2 1 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0021-9991 J9 J COMPUT PHYS JI J. Comput. Phys. PD OCT PY 1990 VL 90 IS 2 BP 271 EP 291 DI 10.1016/0021-9991(90)90167-Y PG 21 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA EB113 UT WOS:A1990EB11300001 ER PT J AU SHUEN, JS LIOU, MS VAN LEER, B AF SHUEN, JS LIOU, MS VAN LEER, B TI INVISCID FLUX-SPLITTING ALGORITHMS FOR REAL GASES WITH NONEQUILIBRIUM CHEMISTRY SO JOURNAL OF COMPUTATIONAL PHYSICS LA English DT Article C1 UNIV MICHIGAN, ANN ARBOR, MI 48109 USA. NASA, LEWIS RES CTR, INST COMPUTAT MECH PROPULS, CLEVELAND, OH 44135 USA. RP SVERDRUP TECHNOL INC, NASA, LEWIS RES CTR, CLEVELAND, OH 44135 USA. NR 19 TC 31 Z9 36 U1 0 U2 0 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0021-9991 EI 1090-2716 J9 J COMPUT PHYS JI J. Comput. Phys. PD OCT PY 1990 VL 90 IS 2 BP 371 EP 395 DI 10.1016/0021-9991(90)90172-W PG 25 WC Computer Science, Interdisciplinary Applications; Physics, Mathematical SC Computer Science; Physics GA EB113 UT WOS:A1990EB11300006 ER PT J AU SLINEY, HE AF SLINEY, HE TI SOME COMPOSITE BEARING AND SEAL MATERIALS FOR GAS-TURBINE APPLICATIONS - A REVIEW SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 34TH INTERNATIONAL GAS TURBINE AND AEROENGINE CONGRESS AND EXHIBITION CY JUN 04-08, 1989 CL TORONTO, CANADA RP SLINEY, HE (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 18 TC 5 Z9 5 U1 1 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 486 EP 491 DI 10.1115/1.2906193 PG 6 WC Engineering, Mechanical SC Engineering GA EF298 UT WOS:A1990EF29800007 ER PT J AU TRIPP, DE HEMANN, JH GYEKENYESI, JP AF TRIPP, DE HEMANN, JH GYEKENYESI, JP TI A REVIEW OF FAILURE MODELS FOR CERAMIC MATRIX COMPOSITE LAMINATES UNDER MONOTONIC LOADS SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 34TH INTERNATIONAL GAS TURBINE AND AEROENGINE CONGRESS AND EXHIBITION CY JUN 04-08, 1989 CL TORONTO, CANADA C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP TRIPP, DE (reprint author), CLEVELAND STATE UNIV,DEPT CIVIL ENGN,CLEVELAND,OH 44115, USA. NR 81 TC 0 Z9 0 U1 1 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 492 EP 501 DI 10.1115/1.2906194 PG 10 WC Engineering, Mechanical SC Engineering GA EF298 UT WOS:A1990EF29800008 ER PT J AU DUFFY, SF MANDERSCHEID, JM AF DUFFY, SF MANDERSCHEID, JM TI NONINTERACTIVE MACROSCOPIC RELIABILITY MODEL FOR CERAMIC MATRIX COMPOSITES WITH ORTHOTROPIC MATERIAL SYMMETRY SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 34TH INTERNATIONAL GAS TURBINE AND AEROENGINE CONGRESS AND EXHIBITION CY JUN 04-08, 1989 CL TORONTO, CANADA C1 NASA,LEWIS RES CTR,STRUCT INTEGR BRANCH,CLEVELAND,OH 44135. RP DUFFY, SF (reprint author), CLEVELAND STATE UNIV,DEPT CIVIL ENGN & ENGN MECH,CLEVELAND,OH 44115, USA. NR 14 TC 6 Z9 6 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 507 EP 511 DI 10.1115/1.2906196 PG 5 WC Engineering, Mechanical SC Engineering GA EF298 UT WOS:A1990EF29800010 ER PT J AU CHISHOLM, JD NOBBS, SG STEWART, JF AF CHISHOLM, JD NOBBS, SG STEWART, JF TI DEVELOPMENT OF THE HIDEC INLET INTEGRATION MODE SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 34TH INTERNATIONAL GAS TURBINE AND AEROENGINE CONGRESS AND EXHIBITION CY JUN 04-08, 1989 CL TORONTO, CANADA C1 NASA,AMES DRYDEN,EDWARDS AFB,CA 93523. RP CHISHOLM, JD (reprint author), MCDONNELL DOUGLAS CORP,MC DONNELL AIRCRAFT CO,ST LOUIS,MO 63166, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 565 EP 572 DI 10.1115/1.2906206 PG 8 WC Engineering, Mechanical SC Engineering GA EF298 UT WOS:A1990EF29800020 ER PT J AU CHEN, SK LEFEBVRE, AH ROLLBUHLER, J AF CHEN, SK LEFEBVRE, AH ROLLBUHLER, J TI INFLUENCE OF GEOMETRIC FEATURES ON THE PERFORMANCE OF PRESSURE-SWIRL ATOMIZERS SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE ASME LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP CHEN, SK (reprint author), PURDUE UNIV,CTR THERMAL SCI & PROPULS CTR,W LAFAYETTE,IN 47907, USA. NR 16 TC 13 Z9 13 U1 0 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0742-4795 J9 J ENG GAS TURB POWER JI J. Eng. Gas. Turbines Power-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 579 EP 584 DI 10.1115/1.2906208 PG 6 WC Engineering, Mechanical SC Engineering GA EF298 UT WOS:A1990EF29800022 ER PT J AU JACQMIN, D AF JACQMIN, D TI STABILITY OF AN OSCILLATED FLUID WITH A UNIFORM DENSITY GRADIENT SO JOURNAL OF FLUID MECHANICS LA English DT Article RP JACQMIN, D (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 24 TC 7 Z9 7 U1 0 U2 3 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0022-1120 J9 J FLUID MECH JI J. Fluid Mech. PD OCT PY 1990 VL 219 BP 449 EP 468 DI 10.1017/S0022112090003020 PG 20 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EF943 UT WOS:A1990EF94300019 ER PT J AU GOLDSTEIN, ME WUNDROW, DW AF GOLDSTEIN, ME WUNDROW, DW TI SPATIAL EVOLUTION OF NONLINEAR ACOUSTIC MODE-INSTABILITIES ON HYPERSONIC BOUNDARY-LAYERS SO JOURNAL OF FLUID MECHANICS LA English DT Article C1 SVERDRUP TECHNOL INC,LEWIS RES CTR,CLEVELAND,OH 44135. RP GOLDSTEIN, ME (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 12 TC 14 Z9 14 U1 0 U2 2 PU CAMBRIDGE UNIV PRESS PI NEW YORK PA 40 WEST 20TH STREET, NEW YORK, NY 10011-4211 SN 0022-1120 J9 J FLUID MECH JI J. Fluid Mech. PD OCT PY 1990 VL 219 BP 585 EP 607 DI 10.1017/S0022112090003093 PG 23 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EF943 UT WOS:A1990EF94300026 ER PT J AU ZHANG, MHG LUHMANN, JG KLIORE, AJ AF ZHANG, MHG LUHMANN, JG KLIORE, AJ TI AN OBSERVATIONAL STUDY OF THE NIGHTSIDE IONOSPHERES OF MARS AND VENUS WITH RADIO OCCULTATION METHODS SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 UNIV CALIF LOS ANGELES,INST GEOPHYS & PLANETARY PHYS,LOS ANGELES,CA 90024. JET PROP LAB,PASADENA,CA 90011. RP ZHANG, MHG (reprint author), AUSTRIAN ACAD SCI,SPACE RES INST,GRAZ,AUSTRIA. NR 15 TC 107 Z9 110 U1 1 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17095 EP 17102 DI 10.1029/JA095iA10p17095 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100004 ER PT J AU CLIVER, EW FEYNMAN, J GARRETT, HB AF CLIVER, EW FEYNMAN, J GARRETT, HB TI AN ESTIMATE OF THE MAXIMUM SPEED OF THE SOLAR-WIND, 1938-1989 SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP CLIVER, EW (reprint author), SPACE PHYS DIV,GEOPHYS LAB,BEDFORD,MA 01731, USA. NR 87 TC 72 Z9 72 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17103 EP 17112 DI 10.1029/JA095iA10p17103 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100005 ER PT J AU LOCKWOOD, M COWLEY, SWH SANDHOLT, PE LEPPING, RP AF LOCKWOOD, M COWLEY, SWH SANDHOLT, PE LEPPING, RP TI THE IONOSPHERIC SIGNATURES OF FLUX-TRANSFER EVENTS AND SOLAR-WIND DYNAMIC PRESSURE CHANGES SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 UNIV LONDON IMPERIAL COLL SCI & TECHNOL,BLACKETT LAB,LONDON SW7 2BZ,ENGLAND. UNIV OSLO,DEPT PHYS,N-0316 OSLO 3,NORWAY. NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP LOCKWOOD, M (reprint author), RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND. RI Lockwood, Mike/G-1030-2011 OI Lockwood, Mike/0000-0002-7397-2172 NR 75 TC 117 Z9 117 U1 1 U2 4 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17113 EP 17135 DI 10.1029/JA095iA10p17113 PG 23 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100006 ER PT J AU HUANG, TS WOLF, RA HILL, TW AF HUANG, TS WOLF, RA HILL, TW TI INTERCHANGE INSTABILITY OF THE EARTHS PLASMAPAUSE SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Article C1 RICE UNIV,DEPT SPACE PHYS & ASTRON,HOUSTON,TX 77251. RP HUANG, TS (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 26 TC 16 Z9 16 U1 1 U2 2 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17187 EP 17198 DI 10.1029/JA095iA10p17187 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100012 ER PT J AU GONZALEZ, WD LEE, LC TSURUTANI, BT AF GONZALEZ, WD LEE, LC TSURUTANI, BT TI THE POLARITY OF MAGNETIC CLOUDS - COMMENT SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Note C1 UNIV ALASKA,INST GEOPHYS,FAIRBANKS,AK 99775. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP GONZALEZ, WD (reprint author), INST PESQUISAS ESPACIAIS,BR-12201 SAO JOSE CAMPOS,SP,BRAZIL. RI Lee, Lou-Chuang/I-2588-2013 OI Lee, Lou-Chuang/0000-0003-4012-991X NR 13 TC 7 Z9 7 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17267 EP 17269 DI 10.1029/JA095iA10p17267 PG 3 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100019 ER PT J AU BURLAGA, LF WILSON, RM AF BURLAGA, LF WILSON, RM TI THE POLARITY OF MAGNETIC CLOUDS - REPLY SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS LA English DT Letter C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. RP BURLAGA, LF (reprint author), NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771, USA. NR 11 TC 2 Z9 2 U1 0 U2 0 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0148-0227 J9 J GEOPHYS RES JI J. Geophys. Res-Space Phys. PD OCT 1 PY 1990 VL 95 IS A10 BP 17271 EP 17272 DI 10.1029/JA095iA10p17271 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EC881 UT WOS:A1990EC88100020 ER PT J AU SHAHIDSALESS, B AF SHAHIDSALESS, B TI CURVATURE-SQUARED COSMOLOGY IN THE 1ST-ORDER FORMALISM SO JOURNAL OF MATHEMATICAL PHYSICS LA English DT Article C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 23 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 0022-2488 J9 J MATH PHYS JI J. Math. Phys. PD OCT PY 1990 VL 31 IS 10 BP 2429 EP 2433 DI 10.1063/1.528848 PG 5 WC Physics, Mathematical SC Physics GA EB661 UT WOS:A1990EB66100016 ER PT J AU PERRIN, A VASSEROT, AM FLAUD, JM CAMYPEYRET, C RINSLAND, CP SMITH, MAH DEVI, VM AF PERRIN, A VASSEROT, AM FLAUD, JM CAMYPEYRET, C RINSLAND, CP SMITH, MAH DEVI, VM TI THE NU-2 BANDS OF O-3(18), O-18-O-16-O-18, AND O-16-O-18-O-18 - LINE POSITIONS AND INTENSITIES SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article C1 NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665. COLL WILLIAM & MARY,DEPT PHYS,WILLIAMSBURG,VA 23185. RP PERRIN, A (reprint author), UNIV PARIS 06,PHYS MOLEC & ATMOSPHER LAB,TOUR 13,4 PL JUSSIEU,F-75252 PARIS 05,FRANCE. NR 9 TC 24 Z9 25 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD OCT PY 1990 VL 143 IS 2 BP 311 EP 317 DI 10.1016/0022-2852(91)90095-R PG 7 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EC882 UT WOS:A1990EC88200014 ER PT J AU DEVI, VM PERRIN, A FLAUD, JM CAMYPEYRET, C RINSLAND, CP SMITH, MAH AF DEVI, VM PERRIN, A FLAUD, JM CAMYPEYRET, C RINSLAND, CP SMITH, MAH TI LINE POSITIONS AND INTENSITIES FOR THE NU-2 + 3-NU-3 BAND OF O-16(3) AROUND 2.7 MU-M SO JOURNAL OF MOLECULAR SPECTROSCOPY LA English DT Article C1 UNIV PARIS 06,PHYS MOLEC & ATMOSPHER LAB,F-75252 PARIS 05,FRANCE. CNRS,F-75005 PARIS,FRANCE. NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665. RP DEVI, VM (reprint author), COLL WILLIAM & MARY,DEPT PHYS,WILLIAMSBURG,VA 23185, USA. NR 16 TC 15 Z9 15 U1 0 U2 0 PU ACADEMIC PRESS INC JNL-COMP SUBSCRIPTIONS PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 SN 0022-2852 J9 J MOL SPECTROSC JI J. Mol. Spectrosc. PD OCT PY 1990 VL 143 IS 2 BP 381 EP 388 PG 8 WC Physics, Atomic, Molecular & Chemical; Spectroscopy SC Physics; Spectroscopy GA EC882 UT WOS:A1990EC88200021 ER PT J AU YOUNG, PR DAVIS, JRJ CHANG, AC RICHARDSON, JN AF YOUNG, PR DAVIS, JRJ CHANG, AC RICHARDSON, JN TI CHARACTERIZATION OF A THERMALLY IMIDIZED SOLUBLE POLYIMIDE FILM SO JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY LA English DT Article RP YOUNG, PR (reprint author), NASA, LANGLEY RES CTR, HAMPTON, VA 23665 USA. NR 43 TC 43 Z9 43 U1 1 U2 8 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0887-624X EI 1099-0518 J9 J POLYM SCI POL CHEM JI J. Polym. Sci. Pol. Chem. PD OCT PY 1990 VL 28 IS 11 BP 3107 EP 3122 DI 10.1002/pola.1990.080281117 PG 16 WC Polymer Science SC Polymer Science GA DY601 UT WOS:A1990DY60100017 ER PT J AU BASS, HE SUTHERLAND, LC ZUCKERWAR, AJ AF BASS, HE SUTHERLAND, LC ZUCKERWAR, AJ TI ATMOSPHERIC ABSORPTION OF SOUND - UPDATE SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Letter C1 USN,POSTGRAD SCH,DEPT PHYS,MONTEREY,CA 93943. WYLE LABS,EL SEGUNDO,CA 90245. NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 3 TC 48 Z9 48 U1 2 U2 8 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD OCT PY 1990 VL 88 IS 4 BP 2019 EP 2021 DI 10.1121/1.400176 PG 3 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA EF924 UT WOS:A1990EF92400041 ER PT J AU JACKSON, WC OBRIEN, TK AF JACKSON, WC OBRIEN, TK TI WATER INTRUSION IN THIN-SKINNED COMPOSITE HONEYCOMB SANDWICH STRUCTURES SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY LA English DT Article RP JACKSON, WC (reprint author), USA,AVIAT RES & TECHNOL ACTIV,AEROSTRUCT DIRECTORATE,AVSCOM,LANGLEY RES CTR,HAMPTON,VA, USA. NR 0 TC 0 Z9 0 U1 0 U2 2 PU AMER HELICOPTER SOC INC PI ALEXANDRIA PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 SN 0002-8711 J9 J AM HELICOPTER SOC JI J. Am. Helicopter Soc. PD OCT PY 1990 VL 35 IS 4 BP 31 EP 37 PG 7 WC Engineering, Aerospace SC Engineering GA EG599 UT WOS:A1990EG59900004 ER PT J AU BOUSMAN, WG AF BOUSMAN, WG TI THE RESPONSE OF HELICOPTER ROTORS TO VIBRATORY AIRLOADS SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY LA English DT Article RP BOUSMAN, WG (reprint author), USA,AEROFLIGHTDYNAM DIRECTORATE,AVSCOM,AMES RES CTR,MOFFETT FIELD,CA, USA. NR 0 TC 9 Z9 9 U1 0 U2 0 PU AMER HELICOPTER SOC INC PI ALEXANDRIA PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 SN 0002-8711 J9 J AM HELICOPTER SOC JI J. Am. Helicopter Soc. PD OCT PY 1990 VL 35 IS 4 BP 53 EP 62 PG 10 WC Engineering, Aerospace SC Engineering GA EG599 UT WOS:A1990EG59900007 ER PT J AU RATNAKUMAR, BV DISTEFANO, S HALPERT, G AF RATNAKUMAR, BV DISTEFANO, S HALPERT, G TI ELECTROCHEMISTRY OF METAL CHLORIDE CATHODES IN SODIUM BATTERIES SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article RP RATNAKUMAR, BV (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 16 TC 26 Z9 26 U1 1 U2 6 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534 SN 0013-4651 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PD OCT PY 1990 VL 137 IS 10 BP 2991 EP 2997 DI 10.1149/1.2086147 PG 7 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA EB796 UT WOS:A1990EB79600001 ER PT J AU LARIMER, J FARRELL, J GLENN, W MAKOUS, W AF LARIMER, J FARRELL, J GLENN, W MAKOUS, W TI APPLIED VISION - INTRODUCTION SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Editorial Material C1 HEWLETT PACKARD CO,POB 10490,PALO ALTO,CA 94304. FLORIDA ATLANTIC UNIV,DEPT ELECT ENGN,POB 3091,BOCA RATON,FL 33431. UNIV ROCHESTER,CTR VISUAL SCI,ROCHESTER,NY 14627. RP LARIMER, J (reprint author), NASA,AMES RES CTR,HUMAN INTERFACE RES BRANCH,MS 262-2,MOFFETT FIELD,CA 94035, USA. RI Makous, Walter/A-1200-2007 NR 0 TC 1 Z9 1 U1 0 U2 0 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD OCT PY 1990 VL 7 IS 10 BP 1939 EP 1940 PG 2 WC Optics SC Optics GA EB657 UT WOS:A1990EB65700014 ER PT J AU WATSON, AB AF WATSON, AB TI PERCEPTUAL-COMPONENTS ARCHITECTURE FOR DIGITAL VIDEO SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Review RP WATSON, AB (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 100 TC 29 Z9 29 U1 0 U2 1 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD OCT PY 1990 VL 7 IS 10 BP 1943 EP 1954 DI 10.1364/JOSAA.7.001943 PG 12 WC Optics SC Optics GA EB657 UT WOS:A1990EB65700015 PM 2231105 ER PT J AU NOEVER, DA AF NOEVER, DA TI FRACTAL DIMENSION OF BIOCONVECTION PATTERNS SO JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN LA English DT Letter RP NOEVER, DA (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,ES-76,HUNTSVILLE,AL 35812, USA. NR 28 TC 4 Z9 4 U1 0 U2 0 PU PHYSICAL SOCIETY JAPAN KIKAI-SHINKO BUILDING PI TOKYO PA 3-5-8 SHIBA-KOEN MINATO-KU, TOKYO 105, JAPAN SN 0031-9015 J9 J PHYS SOC JPN JI J. Phys. Soc. Jpn. PD OCT PY 1990 VL 59 IS 10 BP 3419 EP 3422 DI 10.1143/JPSJ.59.3419 PG 4 WC Physics, Multidisciplinary SC Physics GA EG998 UT WOS:A1990EG99800003 ER PT J AU Kassemi, M Duval, WMB AF Kassemi, Mohammad Duval, Walter M. B. TI Interaction of Surface Radiation with Convection in Crystal Growth by Vapor Transport SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article AB Growth of single crystals from vapor in closed ampoules is governed by an intricate interplay between mass, momentum, and heat transfer processes. The objective of this study is to examine and isolate the effects of surface radiation heat transfer on the vapor transport process using a mathematical model. The model consists of a set of coupled nonlinear partial differential equations for conservation of mass, momentum, energy, and species, and the integro-differential equations that represent radiative exchange. It depends on five important physical parameters. These are Grashof number, Prandtl number, Schmidt number, aspect ratio, and the radiation-conduction number. The effects of these dimensionless groupings are systematically investigated. From the cases examined, it is concluded that surface radiation can change the flow structure appreciably. This is especially true in microgravity environment where radiation competes primarily with conduction in modifying the thermal profiles. The numerical results also show that in the presence of radiation, the top-heating configuration (source on top) is no longer stable and that near the growing crystal, radiation-induced vortices can introduce significant nonuniformities in the growth flux. C1 [Kassemi, Mohammad] NASA, Lewis Res Ctr, NRC, Cleveland, OH 44135 USA. RP Kassemi, M (reprint author), NASA, Lewis Res Ctr, NRC, Cleveland, OH 44135 USA. NR 15 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD OCT PY 1990 VL 4 IS 4 BP 454 EP 461 DI 10.2514/3.208 PG 8 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA V24ZT UT WOS:000208449000007 ER PT J AU Levin, E Partridge, H Stallcop, JR AF Levin, E. Partridge, H. Stallcop, J. R. TI Collision Integrals and High Temperature Transport Properties for N-N, O-O, and N-O SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article AB Accurate collision integrals for the interactions of N(S-4(O)) + N(S-4(O)), O(P-3) + O(P-3), and N(S-4(O)) + O(P-3) are reported in this paper. These are computed from a semiclassical formulation of the scattering using the best available representations of all of the potential energy curves needed to describe the collisions. Spectroscopic curves and other accurate measured data are used where available; the results of accurate ab initio electronic structure calculations are used to determine the remaining potential curves. The high-lying states are found to give the largest contributions to the collision cross sections. The nine collision integrals needed to determine transport properties to second order are tabulated for translational temperatures in the range 250-100,000 K. These results are intended to reduce the uncertainty in future predictions of the transport properties of nonequilibrium air, particularly at high temperatures. The viscosity, thermal conductivity, diffusion coefficient, and thermal diffusion factor for a gas composed of nitrogen and oxygen atoms in thermal equilibrium have been calculated. We find that the second-order contribution to the transport properties is small. Graphs of these transport properties for various mixture ratios are presented for temperatures in the range 5000-15,000 K. C1 [Levin, E.] NASA, Ames Res Ctr, Res Inst Adv Comp Sci, Moffett Field, CA 94035 USA. [Partridge, H.; Stallcop, J. R.] NASA, Ames Res Ctr, Computat Chem Branch, Thermosci Div, Moffett Field, CA 94035 USA. RP Levin, E (reprint author), NASA, Ames Res Ctr, Res Inst Adv Comp Sci, Moffett Field, CA 94035 USA. FU NASA [NCC 2-387] FX This work was supported in part by Cooperative Agreement NCC 2-387 from NASA to the Universities Space Research Association. NR 43 TC 69 Z9 69 U1 2 U2 8 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD OCT PY 1990 VL 4 IS 4 BP 469 EP 477 DI 10.2514/3.210 PG 9 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA V24ZT UT WOS:000208449000009 ER PT J AU KURKOV, AP AF KURKOV, AP TI OPTICAL MEASUREMENT OF UNDUCTED FAN BLADE DEFLECTIONS SO JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 9TH INTERNATIONAL SYMP ON AIR BREATHING ENGINES CY SEP 03-08, 1989 CL ATHENS, GREECE RP KURKOV, AP (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0889-504X J9 J TURBOMACH JI J. Turbomach.-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 751 EP 758 DI 10.1115/1.2927718 PG 8 WC Engineering, Mechanical SC Engineering GA EF911 UT WOS:A1990EF91100019 ER PT J AU BUFFUM, DH FLEETER, S AF BUFFUM, DH FLEETER, S TI THE AERODYNAMICS OF AN OSCILLATING CASCADE IN A COMPRESSIBLE FLOW FIELD SO JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 9TH INTERNATIONAL SYMP ON AIR BREATHING ENGINES CY SEP 03-08, 1989 CL ATHENS, GREECE RP BUFFUM, DH (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 7 Z9 8 U1 0 U2 0 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0889-504X J9 J TURBOMACH JI J. Turbomach.-Trans. ASME PD OCT PY 1990 VL 112 IS 4 BP 759 EP 767 DI 10.1115/1.2927719 PG 9 WC Engineering, Mechanical SC Engineering GA EF911 UT WOS:A1990EF91100020 ER PT J AU IVERSEN, JD WANG, WP RASMUSSEN, KR MIKKELSEN, HE HASIUK, JF LEACH, RN AF IVERSEN, JD WANG, WP RASMUSSEN, KR MIKKELSEN, HE HASIUK, JF LEACH, RN TI THE EFFECT OF A ROUGHNESS ELEMENT ON LOCAL SALTATION TRANSPORT SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article ID SAND AB Wind tunnel tests of rectangular prisms and circular cylinders have been initiated to determine the effects of such boundary layer obstacles on local aeolian saltation erosion and deposition. Preliminary results show that the drift topography adjacent to the rectangular or cylindrical roughness element is a strong function of the element's geometry. Variation of drift topography with cylindrical element aspect ratio is illustrated. C1 AARHUS UNIV,INST GEOL,DEPT GEOL,DK-8000 AARHUS,DENMARK. UNIV TEXAS,DEPT MECH ENGN,EL PASO,TX 79968. ARIZONA STATE UNIV,TEMPE,AZ 85287. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP IVERSEN, JD (reprint author), IOWA STATE UNIV SCI & TECHNOL,DEPT AEROSP ENGN,AMES,IA 50011, USA. NR 12 TC 5 Z9 5 U1 0 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 845 EP 854 PN 2 PG 10 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EN841 UT WOS:A1990EN84100016 ER PT J AU DECKER, R AF DECKER, R TI A CONTINUUM MIXTURE THEORY WITH AN APPLICATION TO TURBULENT SNOW, AIR-FLOWS AND SEDIMENTATION SO JOURNAL OF WIND ENGINEERING AND INDUSTRIAL AERODYNAMICS LA English DT Article AB A continuum mixture theory is specialized for the case of turbulent snow, air transport and sedimentation. To facilitate closure a constitutive assumption is made for the turbulent variables of the snow phase in terms of the mean velocities or shear gradients of the airflow. The resulting turbulent equations of motion for the snow phase contain a set of terms which could be characterized as apparent or turbulent buoyancies. The magnitude of these terms is large where the shear gradients of the airflow are large. The system of non-linear partial differential equations resulting from the turbulent equations of motion are approximated by finite difference techniques. Solutions for the snow phase velocity and density fields are investigated for a variety of one and two dimensional airflow regimes. The model snow phase velocity and density field solutions are compared with observed snow and air mixture flows over flat surfaces and over the crest of a triangular barrier. Lastly, the accumulation rate of deposited snow on the immediate less of the two dimensional barrier is compared with observation. RP DECKER, R (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,FLUID DYNAM BRANCH ES42,HUNTSVILLE,AL 35812, USA. NR 30 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0167-6105 J9 J WIND ENG IND AEROD JI J. Wind Eng. Ind. Aerodyn. PD OCT PY 1990 VL 36 IS 1-3 BP 877 EP 887 PN 2 PG 11 WC Engineering, Civil; Mechanics SC Engineering; Mechanics GA EN841 UT WOS:A1990EN84100019 ER PT J AU FLETCHER, DG MCKENZIE, RL AF FLETCHER, DG MCKENZIE, RL TI WINDOWS ENABLE MULTITASKING IN PC-DOS FOR SPECTROSCOPIC APPLICATIONS SO LASER FOCUS WORLD LA English DT Software Review RP FLETCHER, DG (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU PENNWELL PUBL CO PI NASHUA PA 5TH FLOOR TEN TARA BOULEVARD, NASHUA, NH 03062-2801 SN 0740-2511 J9 LASER FOCUS WORLD JI Laser Focus World PD OCT PY 1990 VL 26 IS 10 BP 59 EP & PG 0 WC Optics SC Optics GA ED475 UT WOS:A1990ED47500011 ER PT J AU FAY, FH SEASE, JL MERRICK, RL AF FAY, FH SEASE, JL MERRICK, RL TI PREDATION ON A RINGED SEAL, PHOCA-HISPIDA, AND A BLACK GUILLEMOT, CEPPHUS-GRYLLE, BY A PACIFIC WALRUS, ODOBENUS-ROSMARUS DIVERGENS SO MARINE MAMMAL SCIENCE LA English DT Note C1 NATL MARINE FISHERIES SERV,ALASKA REG,DIV PROTECTED RESOURCES MANAGEMENT,JUNEAU,AK 99802. NATL MARINE FISHERIES SERV,ALASKA FISHERIES SCI CTR,NATL MARINE FISHERIES SERV,SEATTLE,WA 98115. RP FAY, FH (reprint author), UNIV ALASKA,INST MARINE SCI,FAIRBANKS,AK 99775, USA. NR 12 TC 13 Z9 13 U1 0 U2 9 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD OCT PY 1990 VL 6 IS 4 BP 348 EP 350 DI 10.1111/j.1748-7692.1990.tb00364.x PG 3 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA EJ782 UT WOS:A1990EJ78200008 ER PT J AU CHOPRA, MA RAUSER, RW AF CHOPRA, MA RAUSER, RW TI AUTOMATIC METALLOGRAPHIC PREPARATION OF LOW-CONCENTRATION, DIRECTIONALLY SOLIDIFIED LEAD TIN ALLOYS SO MATERIALS CHARACTERIZATION LA English DT Article C1 NASA,LEWIS RES CTR,SVERDRUP TECHNOL INC,CLEVELAND,OH 44135. RP CHOPRA, MA (reprint author), IBM CORP,AUSTIN,TX 78758, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 1044-5803 J9 MATER CHARACT JI Mater. Charact. PD OCT PY 1990 VL 25 IS 3 BP 311 EP 323 DI 10.1016/1044-5803(90)90060-W PG 13 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; Materials Science, Characterization & Testing SC Materials Science; Metallurgy & Metallurgical Engineering GA EC277 UT WOS:A1990EC27700005 ER PT J AU LEWIS, BM CHENGALUR, JN SCHMELZ, J TERZIAN, Y AF LEWIS, BM CHENGALUR, JN SCHMELZ, J TERZIAN, Y TI ACCURATE POSITIONS OF OH/IR STARS SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LA English DT Article C1 CORNELL UNIV,NATL ASTRON IONOSPHERE CTR,ITHACA,NY 14853. APPL RES CORP,GODDARD SPACE FLIGHT CTR,GREENBELT,MD. CORNELL UNIV,DEPT ASTRON,ITHACA,NY 14853. RP LEWIS, BM (reprint author), ARECIBO OBSERV,NATL ASTRON & IONOSPHERE CTR,POB 995,ARECIBO,PR 00613, USA. NR 13 TC 9 Z9 9 U1 0 U2 0 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0035-8711 J9 MON NOT R ASTRON SOC JI Mon. Not. Roy. Astron. Soc. PD OCT 1 PY 1990 VL 246 IS 3 BP 523 EP 526 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EB271 UT WOS:A1990EB27100014 ER PT J AU LAM, PC SANDHU, TS HUFF, DL SANDIFER, JB AF LAM, PC SANDHU, TS HUFF, DL SANDIFER, JB TI AN INVESTIGATION OF PERIPHERAL GAP AND OPEN LANE EFFECTS ON FLOW-INDUCED VIBRATIONS OF TUBE BUNDLES SO NUCLEAR ENGINEERING AND DESIGN LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. BABCOCK & WILCOX CO,ALLIANCE RES CTR,ALLIANCE,OH 44601. RP LAM, PC (reprint author), UNIV AKRON,DEPT MECH ENGN,AKRON,OH 44325, USA. NR 10 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0029-5493 J9 NUCL ENG DES JI Nucl. Eng. Des. PD OCT PY 1990 VL 123 IS 1 BP 45 EP 55 DI 10.1016/0029-5493(90)90269-4 PG 11 WC Nuclear Science & Technology SC Nuclear Science & Technology GA EG309 UT WOS:A1990EG30900004 ER PT J AU HOOVER, RB BARBEE, TW BAKER, PC LINDBLOM, JF ALLEN, MJ DEFORREST, C KANKELBORG, C ONEAL, RH PARIS, E WALKER, ABC AF HOOVER, RB BARBEE, TW BAKER, PC LINDBLOM, JF ALLEN, MJ DEFORREST, C KANKELBORG, C ONEAL, RH PARIS, E WALKER, ABC TI PERFORMANCE OF COMPACT MULTILAYER COATED TELESCOPES AT SOFT X-RAY/EUV AND FAR ULTRAVIOLET WAVELENGTHS SO OPTICAL ENGINEERING LA English DT Article C1 UNIV CALIF LAWRENCE LIVERMORE NATL LAB,LIVERMORE,CA 94550. BAKER CONSULTING,WALNUT CREEK,CA 94596. STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR,STANFORD,CA 94305. STANFORD UNIV,CTR SPACE SCI & ASTROPHYS,STANFORD,CA 94305. RP HOOVER, RB (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812, USA. NR 17 TC 7 Z9 7 U1 0 U2 2 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD OCT PY 1990 VL 29 IS 10 BP 1281 EP 1290 PG 10 WC Optics SC Optics GA ED404 UT WOS:A1990ED40400020 ER PT J AU SAHA, TT AF SAHA, TT TI IMAGE DEFECTS FROM SURFACE AND ALIGNMENT ERRORS IN GRAZING-INCIDENCE TELESCOPES SO OPTICAL ENGINEERING LA English DT Article RP SAHA, TT (reprint author), NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,CODE 7174,GREENBELT,MD 20771, USA. NR 6 TC 7 Z9 7 U1 0 U2 0 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD OCT PY 1990 VL 29 IS 10 BP 1296 EP 1305 DI 10.1117/12.55727 PG 10 WC Optics SC Optics GA ED404 UT WOS:A1990ED40400022 ER PT J AU WALKER, ABC BAILEY, W CHUPP, EL HUDSON, HS MOORE, R ROBERTS, W HOOVER, RB WU, ST AF WALKER, ABC BAILEY, W CHUPP, EL HUDSON, HS MOORE, R ROBERTS, W HOOVER, RB WU, ST TI THE ADVANCED SOLAR OBSERVATORY SO OPTICAL ENGINEERING LA English DT Article C1 TELEDYNE BROWN ENGN INC,HUNTSVILLE,AL 35807. UNIV NEW HAMPSHIRE,DEPT PHYS,DURHAM,NH 03824. UNIV CALIF SAN DIEGO,DEPT PHYS,LA JOLLA,CA 92093. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. UNIV ALABAMA,SCH ENGN,HUNTSVILLE,AL 35899. RP WALKER, ABC (reprint author), STANFORD UNIV,CTR SPACE SCI & ASTROPHYS,STANFORD,CA 94305, USA. NR 68 TC 0 Z9 0 U1 0 U2 0 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD OCT PY 1990 VL 29 IS 10 BP 1306 EP 1318 PG 13 WC Optics SC Optics GA ED404 UT WOS:A1990ED40400023 ER PT J AU SMIALEK, JL DOYCHAK, J GAYDOSH, DJ AF SMIALEK, JL DOYCHAK, J GAYDOSH, DJ TI OXIDATION BEHAVIOR OF FEAL+HF, ZR, B SO OXIDATION OF METALS LA English DT Article C1 NASA,LEWIS RES CTR GRP,SVERDRUP TECHNOL INC,CLEVELAND,OH 44135. RP SMIALEK, JL (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 13 TC 75 Z9 76 U1 0 U2 6 PU PLENUM PUBL CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 SN 0030-770X J9 OXID MET JI Oxid. Met. PD OCT PY 1990 VL 34 IS 3-4 BP 259 EP 275 DI 10.1007/BF00665018 PG 17 WC Metallurgy & Metallurgical Engineering SC Metallurgy & Metallurgical Engineering GA EE526 UT WOS:A1990EE52600006 ER PT J AU SADER, SA STONE, TA JOYCE, AT AF SADER, SA STONE, TA JOYCE, AT TI REMOTE-SENSING OF TROPICAL FORESTS - AN OVERVIEW OF RESEARCH AND APPLICATIONS USING NONPHOTOGRAPHIC SENSORS SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING LA English DT Review C1 WOODS HOLE RES CTR,WOODS HOLE,MA 02543. NASA,SCI & TECHNOL LAB,STENNIS SPACE CTR,NSTL STN,MS 39529. RP SADER, SA (reprint author), UNIV MAINE,COLL FOREST RESOURCES,ORONO,ME 04469, USA. NR 124 TC 54 Z9 55 U1 0 U2 1 PU AMER SOC PHOTOGRAMMETRY PI BETHESDA PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 SN 0099-1112 J9 PHOTOGRAMM ENG REM S JI Photogramm. Eng. Remote Sens. PD OCT PY 1990 VL 56 IS 10 BP 1343 EP 1351 PG 9 WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing; Imaging Science & Photographic Technology SC Physical Geography; Geology; Remote Sensing; Imaging Science & Photographic Technology GA EB409 UT WOS:A1990EB40900004 ER PT J AU HELFERT, MR LULLA, KP AF HELFERT, MR LULLA, KP TI MAPPING CONTINENTAL-SCALE BIOMASS BURNING AND SMOKE PALLS OVER THE AMAZON BASIN AS OBSERVED FROM THE SPACE-SHUTTLE SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING LA English DT Article RP HELFERT, MR (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,SPACE SHUTTLE EARTH OBSERVAT OFF,HOUSTON,TX 77058, USA. NR 80 TC 11 Z9 12 U1 0 U2 1 PU AMER SOC PHOTOGRAMMETRY PI BETHESDA PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 SN 0099-1112 J9 PHOTOGRAMM ENG REM S JI Photogramm. Eng. Remote Sens. PD OCT PY 1990 VL 56 IS 10 BP 1367 EP 1373 PG 7 WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing; Imaging Science & Photographic Technology SC Physical Geography; Geology; Remote Sensing; Imaging Science & Photographic Technology GA EB409 UT WOS:A1990EB40900009 ER PT J AU WELCH, R JORDAN, TR AF WELCH, R JORDAN, TR TI GEOCODING AND STEREO DISPLAY OF TROPICAL FOREST MULTISENSOR DATASETS SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING LA English DT Article C1 NASA,SCI & TECHNOL LAB,STENNIS SPACE CTR,NSTL STN,MS 39529. RP WELCH, R (reprint author), UNIV GEORGIA,CTR REMOTE SENSING & MAPPING SCI,ATHENS,GA 30602, USA. NR 8 TC 11 Z9 11 U1 0 U2 0 PU AMER SOC PHOTOGRAMMETRY PI BETHESDA PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 SN 0099-1112 J9 PHOTOGRAMM ENG REM S JI Photogramm. Eng. Remote Sens. PD OCT PY 1990 VL 56 IS 10 BP 1389 EP 1392 PG 4 WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing; Imaging Science & Photographic Technology SC Physical Geography; Geology; Remote Sensing; Imaging Science & Photographic Technology GA EB409 UT WOS:A1990EB40900012 ER PT J AU LUVALL, JC LIEBERMAN, D LIEBERMAN, M HARTSHORN, GS PERALTA, R AF LUVALL, JC LIEBERMAN, D LIEBERMAN, M HARTSHORN, GS PERALTA, R TI ESTIMATION OF TROPICAL FOREST CANOPY TEMPERATURES, THERMAL RESPONSE NUMBERS, AND EVAPOTRANSPIRATION USING AN AIRCRAFT-BASED THERMAL SENSOR SO PHOTOGRAMMETRIC ENGINEERING AND REMOTE SENSING LA English DT Article C1 NASA,SCI & TECHNOL LAB,STENNIS SPACE CTR,NSTL STN,MS 39529. UNIV N DAKOTA,DEPT BIOL,GRAND FORKS,ND 58202. TROP SCI CTR,SAN JOSE,COSTA RICA. NR 34 TC 30 Z9 30 U1 0 U2 2 PU AMER SOC PHOTOGRAMMETRY PI BETHESDA PA 5410 GROSVENOR LANE SUITE 210, BETHESDA, MD 20814-2160 SN 0099-1112 J9 PHOTOGRAMM ENG REM S JI Photogramm. Eng. Remote Sens. PD OCT PY 1990 VL 56 IS 10 BP 1393 EP 1401 PG 9 WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing; Imaging Science & Photographic Technology SC Physical Geography; Geology; Remote Sensing; Imaging Science & Photographic Technology GA EB409 UT WOS:A1990EB40900013 ER PT J AU MAUNG, KM GROSS, F AF MAUNG, KM GROSS, F TI COVARIANT MULTIPLE-SCATTERING SERIES FOR ELASTIC PROJECTILE-TARGET SCATTERING SO PHYSICAL REVIEW C LA English DT Article C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. COLL WILLIAM & MARY,DEPT PHYS,WILLIAMSBURG,VA 23185. CONTINUOUS ELECTRON BEAM ACCELERATOR FACIL,NEWPORT NEWS,VA 23606. RP MAUNG, KM (reprint author), HAMPTON UNIV,DEPT PHYS,HAMPTON,VA 23668, USA. NR 28 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 0556-2813 J9 PHYS REV C JI Phys. Rev. C PD OCT PY 1990 VL 42 IS 4 BP 1681 EP 1693 DI 10.1103/PhysRevC.42.1681 PG 13 WC Physics, Nuclear SC Physics GA EE086 UT WOS:A1990EE08600060 ER PT J AU NORBURY, JW TOWNSEND, LW AF NORBURY, JW TOWNSEND, LW TI SINGLE NUCLEON EMISSION IN RELATIVISTIC NUCLEUS-NUCLEUS REACTIONS SO PHYSICAL REVIEW C LA English DT Note C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP NORBURY, JW (reprint author), RIDER COLL,DEPT PHYS,LAWRENCEVILLE,NJ 08648, USA. NR 16 TC 17 Z9 17 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 OCT PY 1990 VL 42 IS 4 BP 1775 EP 1777 DI 10.1103/PhysRevC.42.1775 PG 3 WC Physics, Nuclear SC Physics GA EE086 UT WOS:A1990EE08600071 PM 9966913 ER PT J AU MOIN, P SHIH, TH DRIVER, D MANSOUR, NN AF MOIN, P SHIH, TH DRIVER, D MANSOUR, NN TI DIRECT NUMERICAL-SIMULATION OF A 3-DIMENSIONAL TURBULENT BOUNDARY-LAYER SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Article C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP MOIN, P (reprint author), STANFORD UNIV,DEPT MECH ENGN,STANFORD,CA 94305, USA. NR 14 TC 53 Z9 55 U1 1 U2 3 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD OCT PY 1990 VL 2 IS 10 BP 1846 EP 1853 DI 10.1063/1.857658 PG 8 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EB506 UT WOS:A1990EB50600016 ER PT J AU LIU, Y SHAKIB, F VINOKUR, M AF LIU, Y SHAKIB, F VINOKUR, M TI A COMPARISON OF INTERNAL ENERGY CALCULATION METHODS FOR DIATOMIC-MOLECULES SO PHYSICS OF FLUIDS A-FLUID DYNAMICS LA English DT Article C1 STERLING SOFTWARE,PALO ALTO,CA 94303. RP LIU, Y (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 34 TC 12 Z9 12 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0899-8213 J9 PHYS FLUIDS A-FLUID PD OCT PY 1990 VL 2 IS 10 BP 1884 EP 1902 DI 10.1063/1.857663 PG 19 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA EB506 UT WOS:A1990EB50600021 ER PT J AU COLE, KD AF COLE, KD TI ELECTRIC CURRENTS IN F-LIKE PLANETARY IONOSPHERES SO PLANETARY AND SPACE SCIENCE LA English DT Article RP COLE, KD (reprint author), NASA,GODDARD SPACE FLIGHT CTR,PLANETARY ATMOSPHERES LAB,GREENBELT,MD 20771, USA. NR 7 TC 4 Z9 4 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0032-0633 J9 PLANET SPACE SCI JI Planet Space Sci. PD OCT PY 1990 VL 38 IS 10 BP 1327 EP 1333 DI 10.1016/0032-0633(90)90135-D PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA EG286 UT WOS:A1990EG28600009 ER PT J AU BARAM, Y AF BARAM, Y TI GROUND-STATES OF PARTIALLY CONNECTED BINARY NEURAL NETWORKS SO PROCEEDINGS OF THE IEEE LA English DT Article C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP BARAM, Y (reprint author), TECHNION ISRAEL INST TECHNOL,FAC ELECT ENGN,DEPT ELECT ENGN,IL-32000 HAIFA,ISRAEL. NR 4 TC 1 Z9 1 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9219 J9 P IEEE JI Proc. IEEE PD OCT PY 1990 VL 78 IS 10 BP 1575 EP 1578 DI 10.1109/5.58340 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA ED766 UT WOS:A1990ED76600005 ER PT J AU MCKAY, CP AF MCKAY, CP TI LIFE ON MARS SO RECHERCHE LA French DT Article RP MCKAY, CP (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 23 TC 0 Z9 0 U1 1 U2 1 PU SOC ED SCIENTIFIQUES PI PARIS 06 PA 57 RUE DE SEINE, 75280 PARIS 06, FRANCE SN 0029-5671 J9 RECHERCHE JI Recherche PD OCT PY 1990 VL 21 IS 225 BP 1216 EP 1224 PG 9 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA EB289 UT WOS:A1990EB28900043 PM 11538272 ER PT J AU HOGE, FE SWIFT, RN AF HOGE, FE SWIFT, RN TI PHOTOSYNTHETIC ACCESSORY PIGMENTS - EVIDENCE FOR THE INFLUENCE OF PHYCOERYTHRIN ON THE SUBMARINE LIGHT-FIELD SO REMOTE SENSING OF ENVIRONMENT LA English DT Article ID SPECTRAL CURVATURE ALGORITHMS; OCEAN COLOR MEASUREMENT; WARM CORE RING; MARINE SYNECHOCOCCUS; PHYTOPLANKTON POPULATIONS; CHLOROPHYLL-A; FLUORESCENCE; CYANOBACTERIUM; EXCITATION; SATELLITE AB Oceanic phytoplankton chlorophyll is known to produce a very significant influence on the optical properties of the ocean. The chlorophyll-driven optical properties are in fact so strong as to allow global satellite mapping of the pigment concentration in the upper ocean using upwelled water-leaving radiances. In this paper, extensive experimental evidence is presented to strongly suggest that upwelled water-leaving spectral radiances (and therefore the submarine light field source) also include physical scattering and absorption effects of photosynthetic accessory pigments such as phycoerythrin. In the water column, the presence of phycoerythrin was measured over wide regions of the ocean using well-established airborne laser-induced spectral fluorescence techniques. Active-passive correlation spectroscopy methods revealed that concurrently measured water-leaving spectral radiances in the almost-equal-to 600 nm spectral region were highly correlated with the laser-induced phycoerythrin pigment fluorescence. The analysis was performed on data sets in which the phycoerythrin and chlorophyll fluorescence were not coherent in order to permit the unambiguous evaluation of results. C1 EG&G WASHINGTON ANALYT SERV,POCOMOKE CITY,MD. RP HOGE, FE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,WALLOPS ISL,VA 23337, USA. NR 42 TC 17 Z9 17 U1 0 U2 1 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD OCT PY 1990 VL 34 IS 1 BP 19 EP 35 DI 10.1016/0034-4257(90)90081-V PG 17 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA EQ881 UT WOS:A1990EQ88100002 ER PT J AU MEADOR, MAB GAIER, JR GOOD, BS SHARP, GR MEADOR, MA AF MEADOR, MAB GAIER, JR GOOD, BS SHARP, GR MEADOR, MA TI A REVIEW OF PROPERTIES AND POTENTIAL AEROSPACE APPLICATIONS OF ELECTRICALLY CONDUCTING POLYMERS SO SAMPE QUARTERLY-SOCIETY FOR THE ADVANCEMENT OF MATERIAL AND PROCESS ENGINEERING LA English DT Article RP MEADOR, MAB (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 3 Z9 3 U1 1 U2 1 PU SAMPE PUBLISHERS PI COVINA PA 1161 PARKVIEW DRIVE, COVINA, CA 91722 SN 0036-0821 J9 SAMPE QUART PD OCT PY 1990 VL 22 IS 1 BP 23 EP 31 PG 9 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Engineering; Materials Science GA EH209 UT WOS:A1990EH20900004 ER PT J AU BROWN, SA KUMAR, KS WHITTENBERGER, JD AF BROWN, SA KUMAR, KS WHITTENBERGER, JD TI COMPRESSION BEHAVIOR OF THE FORGED LT2 COMPOUNDS AL67TI25CR8 AND AL66TI25MN9 SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP BROWN, SA (reprint author), MARTIN MARIETTA CORP LABS,BALTIMORE,MD 21227, USA. NR 16 TC 36 Z9 36 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD OCT PY 1990 VL 24 IS 10 BP 2001 EP 2006 DI 10.1016/0956-716X(90)90066-P PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA EA328 UT WOS:A1990EA32800031 ER PT J AU GEER, JF ANDERSEN, CM AF GEER, JF ANDERSEN, CM TI A HYBRID PERTURBATION GALERKIN TECHNIQUE THAT COMBINES MULTIPLE EXPANSIONS SO SIAM JOURNAL ON APPLIED MATHEMATICS LA English DT Article C1 COLL WILLIAM & MARY,DEPT MATH,WILLIAMSBURG,VA 23185. NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23665. RP GEER, JF (reprint author), SUNY BINGHAMTON,WATSON SCH ENGN APPL SCI & TECHNOL,DEPT SYST SCI,BINGHAMTON,NY 13901, USA. NR 15 TC 11 Z9 11 U1 0 U2 1 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER PH#382-9800, PHILADELPHIA, PA 19104-2688 SN 0036-1399 J9 SIAM J APPL MATH JI SIAM J. Appl. Math. PD OCT PY 1990 VL 50 IS 5 BP 1474 EP 1495 DI 10.1137/0150086 PG 22 WC Mathematics, Applied SC Mathematics GA EA514 UT WOS:A1990EA51400013 ER PT J AU APOSTOLICO, A ATALLAH, MJ LARMORE, LL MCFADDIN, S AF APOSTOLICO, A ATALLAH, MJ LARMORE, LL MCFADDIN, S TI EFFICIENT PARALLEL ALGORITHMS FOR STRING EDITING AND RELATED PROBLEMS SO SIAM JOURNAL ON COMPUTING LA English DT Article C1 NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035. UNIV CALIF RIVERSIDE,DEPT MATH & COMP SCI,RIVERSIDE,CA 92521. RP APOSTOLICO, A (reprint author), PURDUE UNIV,DEPT COMP SCI,W LAFAYETTE,IN 47907, USA. NR 24 TC 81 Z9 81 U1 0 U2 0 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER PH#382-9800, PHILADELPHIA, PA 19104-2688 SN 0097-5397 J9 SIAM J COMPUT JI SIAM J. Comput. PD OCT PY 1990 VL 19 IS 5 BP 968 EP 988 DI 10.1137/0219066 PG 21 WC Computer Science, Theory & Methods; Mathematics, Applied SC Computer Science; Mathematics GA EA424 UT WOS:A1990EA42400013 ER PT J AU APPELBAUM, J AF APPELBAUM, J TI RESISTIVE LOADS POWERED BY SEPARATE OR BY COMMON ELECTRICAL SOURCES SO SOLAR CELLS LA English DT Article RP APPELBAUM, J (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 3 TC 2 Z9 2 U1 0 U2 0 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0379-6787 J9 SOL CELLS PD OCT PY 1990 VL 29 IS 4 BP 345 EP 359 DI 10.1016/0379-6787(90)90006-Q PG 15 WC Energy & Fuels SC Energy & Fuels GA EC185 UT WOS:A1990EC18500006 ER PT J AU CROSS, JB MARTIN, JA POPE, LE KOONTZ, SL AF CROSS, JB MARTIN, JA POPE, LE KOONTZ, SL TI ATOMIC OXYGEN MOS2 CHEMICAL INTERACTIONS SO SURFACE & COATINGS TECHNOLOGY LA English DT Article C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP CROSS, JB (reprint author), UNIV CALIF LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545, USA. NR 11 TC 17 Z9 17 U1 2 U2 5 PU ELSEVIER SCIENCE SA LAUSANNE PI LAUSANNE 1 PA PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND SN 0257-8972 J9 SURF COAT TECH JI Surf. Coat. Technol. PD OCT PY 1990 VL 42 IS 1 BP 41 EP 48 DI 10.1016/0257-8972(90)90113-Q PG 8 WC Materials Science, Coatings & Films; Physics, Applied SC Materials Science; Physics GA EC183 UT WOS:A1990EC18300005 ER PT J AU HELMICK, LS JONES, WR AF HELMICK, LS JONES, WR TI DETERMINATION OF THE THERMAL-STABILITY OF FLUIDS BY TENSIOMETRY - INSTRUMENTATION AND PROCEDURE SO TRIBOLOGY TRANSACTIONS LA English DT Article; Proceedings Paper CT 35TH TRIBOLOGY CONF CY OCT 16-19, 1989 CL FT LAUDERDALE, FL SP SOC TRIBOLOGISTS & LUBRICAT ENGINEERS, AMER SOC MECH ENGINEERS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP HELMICK, LS (reprint author), CEDARVILLE COLL,CEDARVILLE,OH 45314, USA. NR 15 TC 1 Z9 1 U1 0 U2 0 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0569-8197 J9 TRIBOL T JI Tribol. Trans. PD OCT PY 1990 VL 33 IS 4 BP 519 EP 528 DI 10.1080/10402009008981984 PG 10 WC Engineering, Mechanical SC Engineering GA EF638 UT WOS:A1990EF63800007 ER PT J AU ZEHE, MJ FAUT, OD AF ZEHE, MJ FAUT, OD TI ACIDIC ATTACK OF PERFLUORINATED ALKYL ETHER LUBRICANT MOLECULES BY METAL-OXIDE SURFACES SO TRIBOLOGY TRANSACTIONS LA English DT Article; Proceedings Paper CT 35TH TRIBOLOGY CONF CY OCT 16-19, 1989 CL FT LAUDERDALE, FL SP SOC TRIBOLOGISTS & LUBRICAT ENGINEERS, AMER SOC MECH ENGINEERS RP ZEHE, MJ (reprint author), NASA,LEWIS RES CTR,NATL RES COUNCIL,CLEVELAND,OH 44135, USA. NR 23 TC 65 Z9 66 U1 1 U2 1 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0569-8197 J9 TRIBOL T JI Tribol. Trans. PD OCT PY 1990 VL 33 IS 4 BP 634 EP 640 DI 10.1080/10402009008981999 PG 7 WC Engineering, Mechanical SC Engineering GA EF638 UT WOS:A1990EF63800022 ER PT J AU MENNE, S LIU, CH AF MENNE, S LIU, CH TI NUMERICAL-SIMULATION OF A 3-DIMENSIONAL VORTEX BREAKDOWN SO ZEITSCHRIFT FUR FLUGWISSENSCHAFTEN UND WELTRAUMFORSCHUNG LA English DT Article ID NAVIER-STOKES EQUATIONS; FLOW; PREDICTION; VORTICES AB The breakdown of a vortex flow in a tube is studied for a slightly diverging tube by means of a numerical solution of the Navier-Stokes equations for a quasi-stationary, incompressible, and laminar flow. Numerical results are compared to experimental results of Faler and Leibovich. The numerical data display features similar to the experimental results concerning breakdown conditions, location, and structure. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 30 TC 4 Z9 4 U1 1 U2 1 PU SPRINGER VERLAG PI NEW YORK PA 175 FIFTH AVE, NEW YORK, NY 10010 SN 0342-068X J9 Z FLUGWISS WELTRAUM JI Z. Flugwiss. Weltraumf. PD OCT PY 1990 VL 14 IS 5 BP 301 EP 308 PG 8 WC Engineering, Aerospace SC Engineering GA FL796 UT WOS:A1990FL79600003 ER EF