FN Thomson Reuters Web of Science™ VR 1.0 PT B AU Thomas, VC Blue, RC Procopio, D AF Thomas, VC Blue, RC Procopio, D BE Horn, L TI Cassini stellar reference unit: Performance test approach and results SO CASSINI/HUYGENS: A MISSION TO THE SATURNIAN SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Cassini/Huygens - A Mission to the Saturnian Systems CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE star tracker; charge-coupled device; attitude sensor; centroid accuracy; noise equivalent angle C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2191-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2803 BP 288 EP 298 DI 10.1117/12.253428 PG 3 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BG52F UT WOS:A1996BG52F00025 ER PT B AU Litty, EC Gresham, LL Toole, PA Beisecker, DA AF Litty, EC Gresham, LL Toole, PA Beisecker, DA BE Horn, L TI Hemispherical Resonator Gyro - An IRU for Cassini SO CASSINI/HUYGENS: A MISSION TO THE SATURNIAN SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Cassini/Huygens - A Mission to the Saturnian Systems CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE Cassini mission; inertial reference systems; Hemispherical Resonator Gyro; HRG C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 4 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2191-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2803 BP 299 EP 310 DI 10.1117/12.253429 PG 4 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BG52F UT WOS:A1996BG52F00026 ER PT B AU Alexander, JW Chang, DH AF Alexander, JW Chang, DH BE Horn, L TI Cassini star tracking and identification algorithms, scene simulation, and testing SO CASSINI/HUYGENS: A MISSION TO THE SATURNIAN SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Cassini/Huygens - A Mission to the Saturnian Systems CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 5 Z9 5 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2191-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2803 BP 311 EP 336 DI 10.1117/12.253430 PG 4 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BG52F UT WOS:A1996BG52F00027 ER PT B AU Godon, P AF Godon, P BE Evans, A Wood, JH TI On the turbulent viscosity prescription in accretion discs SO CATACLYSMIC VARIABLES AND RELATED OBJECTS SE ASTROPHYSICS AND SPACE SCIENCE LIBRARY LA English DT Proceedings Paper CT 158th Colloquium of the International-Astronomical-Union on Cataclysmic Variables and Related Objects CY JUN 26-30, 1995 CL KEELE, ENGLAND SP Int Astron Union, European Commiss Sci Res & Dev, Royal Astron Soc, Kluwer Acad Publ, Keele Univ, Inst Phys, Barclays Bank, Midland Bank C1 NASA,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4195-3 J9 ASTROPHYS SPACE SC L PY 1996 VL 208 BP 109 EP 110 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG48M UT WOS:A1996BG48M00032 ER PT B AU Cannizzo, JK AF Cannizzo, JK BE Evans, A Wood, JH TI Disk instabilities in the black hole binaries SO CATACLYSMIC VARIABLES AND RELATED OBJECTS SE ASTROPHYSICS AND SPACE SCIENCE LIBRARY LA English DT Proceedings Paper CT 158th Colloquium of the International-Astronomical-Union on Cataclysmic Variables and Related Objects CY JUN 26-30, 1995 CL KEELE, ENGLAND SP Int Astron Union, European Commiss Sci Res & Dev, Royal Astron Soc, Kluwer Acad Publ, Keele Univ, Inst Phys, Barclays Bank, Midland Bank C1 UNIV SPACE RES ASSOC,NASA,GSFC,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4195-3 J9 ASTROPHYS SPACE SC L PY 1996 VL 208 BP 135 EP 138 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG48M UT WOS:A1996BG48M00042 ER PT B AU Mukai, K Schlegel, EM Swank, JH Naylor, T Wood, JH AF Mukai, K Schlegel, EM Swank, JH Naylor, T Wood, JH BE Evans, A Wood, JH TI An ASCA observation of the eclipsing dwarf nova HT Cas. SO CATACLYSMIC VARIABLES AND RELATED OBJECTS SE ASTROPHYSICS AND SPACE SCIENCE LIBRARY LA English DT Proceedings Paper CT 158th Colloquium of the International-Astronomical-Union on Cataclysmic Variables and Related Objects CY JUN 26-30, 1995 CL KEELE, ENGLAND SP Int Astron Union, European Commiss Sci Res & Dev, Royal Astron Soc, Kluwer Acad Publ, Keele Univ, Inst Phys, Barclays Bank, Midland Bank C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI Naylor, Tim /A-9465-2015 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4195-3 J9 ASTROPHYS SPACE SC L PY 1996 VL 208 BP 269 EP 272 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG48M UT WOS:A1996BG48M00079 ER PT B AU Smale, AP AF Smale, AP BE Evans, A Wood, JH TI Observations of low mass X-ray binaries SO CATACLYSMIC VARIABLES AND RELATED OBJECTS SE ASTROPHYSICS AND SPACE SCIENCE LIBRARY LA English DT Proceedings Paper CT 158th Colloquium of the International-Astronomical-Union on Cataclysmic Variables and Related Objects CY JUN 26-30, 1995 CL KEELE, ENGLAND SP Int Astron Union, European Commiss Sci Res & Dev, Royal Astron Soc, Kluwer Acad Publ, Keele Univ, Inst Phys, Barclays Bank, Midland Bank C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4195-3 J9 ASTROPHYS SPACE SC L PY 1996 VL 208 BP 349 EP 358 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG48M UT WOS:A1996BG48M00107 ER PT J AU Werner, RA Scheeres, DJ AF Werner, RA Scheeres, DJ TI Exterior gravitation of a polyhedron derived and compared with harmonic and mascon gravitation representations of asteroid 4769 Castalia SO CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY LA English DT Article DE gravitational potential; polyhedron; mascon; asteroid 4769 Castalia ID MAGNETIC-ANOMALIES; POLYGONAL PRISMS; SHAPE; FIELDS; SYSTEM AB The exterior gravitation of a constant-density polyhedron is derived analytically in closed form. Expressions for potential, attraction, and gravity gradient matrix involve one logarithm term per edge and one arctangent term per face. The Laplacian can be used to determine whether a field point is inside or outside the polyhedron. This polyhedral method is well suited to evaluating the gravitational field of an irregularly shaped body such as an asteroid or comet. Conventional harmonic and mascon potential and attraction expressions suffer large errors when evaluated close to a polyhedral model of asteroid 4769 Castalia. RP Werner, RA (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 38 TC 74 Z9 75 U1 0 U2 3 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0923-2958 J9 CELEST MECH DYN ASTR JI Celest. Mech. Dyn. Astron. PY 1996 VL 65 IS 3 BP 313 EP 344 PG 32 WC Astronomy & Astrophysics; Mathematics, Interdisciplinary Applications SC Astronomy & Astrophysics; Mathematics GA XB515 UT WOS:A1996XB51500004 ER PT S AU Bright, MM Qammar, HK Hartley, TT AF Bright, MM Qammar, HK Hartley, TT BE Katz, RA TI Dimension determination of precursive stall events in a single stage high speed compressor SO CHAOTIC, FRACTAL, AND NONLINEAR SIGNAL PROCESSING SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Technical Conference on Nonlinear Dynamics and Full-Spectrum Processing - Chaotic, Fractal, and Nonlinear Signal Processing CY JUL 10-14, 1995 CL MYSTIC, CT SP Amer Inst Phys, USN, Off Naval Res, Chem & Phys S&T Div, Naval Undersea Warfare Ctr, Sci & Technol Directorate, ONR Sci Opportun Program, ONR European Off, London, Int Sci Fdn, Amer Phys Soc C1 NASA,LEWIS RES CTR,ADV CONTROLS TECHNOL & SYST DYNAM BRANCHES,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-443-0 J9 AIP CONF PROC PY 1996 IS 375 BP 435 EP 445 PG 11 WC Acoustics; Geochemistry & Geophysics; Engineering, Biomedical; Engineering, Electrical & Electronic; Mathematics, Applied; Physics, Applied SC Acoustics; Geochemistry & Geophysics; Engineering; Mathematics; Physics GA BG27P UT WOS:A1996BG27P00030 ER PT B AU Williamsen, J Goodwin, J AF Williamsen, J Goodwin, J BE Maclay, TD Allahdadi, FA TI Catastrophic failure of stored energy modules following orbital debris penetration SO CHARACTERISTICS AND CONSEQUENCES OF ORBITAL DEBRIS AND NATURAL SPACE IMPACTORS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Characteristics and Consequences of Orbital Debris and Natural Space Impactors CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE hypervelocity impact; penetration; gyrodyne; UDMH; propellant; stored energy; orbital debris; meteoroid AB The population of dangerous orbital debris particles in low Earth orbit is growing, resulting in a need for improved risk assessment and risk management of critical space station elements from this hypervelocity impact threat. The effects of micrometeoroid and orbital debris (M/OD) penetration on space station equipment can vary from a local damage problem to a possible catastrophic system failure (i.e., crew or station loss). Given this possibility, a preliminary study was undertaken by Meyer Analytics and NASA-MSFC to quantify and reduce the likelihood of catastrophic failure following orbital debris penetration of two Russian supplied modules: the FGB Energy Block module and the SPP-I gyrodyne module. Each of these modules contains stored energy in the form of chemical propellants (UDMH), high pressure tanks, or kinetic energy (gyrodynes) that may release energy and propagate damage to the rest of the space station if impacted by a sufficiently energetic orbital debris particle. The study recommended design improvements to lower these probabilities, including spall blankets around the gyrodynes to lower the probability of gyrodyne penetration and fragment damage given gyrodyne rupture. RP Williamsen, J (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,STRUCT DEV BRANCH,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2201-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2813 BP 127 EP 136 DI 10.1117/12.256055 PG 10 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG73A UT WOS:A1996BG73A00012 ER PT B AU Williamsen, J Grosch, D Schonberg, W AF Williamsen, J Grosch, D Schonberg, W BE Maclay, TD Allahdadi, FA TI Empirical prediction models for hole and crack size in space station shielding from 6 to 12 km/sec SO CHARACTERISTICS AND CONSEQUENCES OF ORBITAL DEBRIS AND NATURAL SPACE IMPACTORS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Characteristics and Consequences of Orbital Debris and Natural Space Impactors CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE hypervelocity impact; hole size; depressurization; fracture; orbital debris; crack length AB Long duration spacecraft in low earth orbit, such as the International Space Station Alpha (ISSA), are highly susceptible to hypervelocity impacts by pieces of debris from past earth-orbiting missions. With this increased likelihood of debris impact over time comes a responsibility on the part of a spacecraft design engineer to quantify, and subsequently reduce, the hazardous effects on the spacecraft and its crew should a penetration occur. Among the various hazards that accompany the penetration of a pressurized manned spacecraft module are critical crack propagation in the module wall (i.e. the so-called 'unzipping' of the module) and depressurization-related phenomena, such as crew hypoxia and uncontrolled thrust due to air rushing out of the module wall hole. These phenomena are directly related to the hole size and crack lengths that result in a spacecraft wall following a penetration. As a result, accurate models for hole size and crack size resulting in thin-walled spacecraft structures following hypervelocity impact penetration are required for accurate spacecraft quantitative risk assessments. This paper presents the results of a study whose objectives were to develop semi-empirical models of hole size and tip-to-tip crack length for some of the multi-wall shielding systems being developed for ISSA. The empirical models were developed using Light gas gun test data at impact velocities around 6.5 km/sec, and inhibited shaped charge test data at an impact velocity of 11.3 km/sec. The significance of the work performed is that these models can be incorporated directly into a survivability analysis to determine whether or not module unzipping would occur under a specific set of impact conditions. In addition, the prediction of hole size can be used as part of a survivability analysis to determine the time available for module evacuation prior to the onset of incapacitation due to air loss. RP Williamsen, J (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,STRUCT DEV BRANCH,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2201-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2813 BP 169 EP 180 DI 10.1117/12.256060 PG 12 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG73A UT WOS:A1996BG73A00016 ER PT B AU Levin, GM AF Levin, GM BE Maclay, TD Allahdadi, FA TI US initiatives in the international effort to mitigate the orbital debris environment SO CHARACTERISTICS AND CONSEQUENCES OF ORBITAL DEBRIS AND NATURAL SPACE IMPACTORS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Characteristics and Consequences of Orbital Debris and Natural Space Impactors CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE orbital debris; space debris; international mitigation; Inter-Agency Space Debris Coordination Committee; Interagency Report on Orbital Debris AB Following release of the 1989 ''Report on Orbital Debris' by the Interagency Group (Space) for the National Security Council, NASA undertook a series of extensive bilateral discussions with the major spacefaring nations on the topic of orbital debris. These discussions led to a greater understanding of both the cause and the effect of orbital debris. As a result of these discussions, the major spacefaring nations have taken definitive steps to redesign their launch vehicles and spacecraft so as to mitigate the production of orbital debris. In 1993 the National Aeronautics and Space Administration (NASA), the European Space Agency (ESA), and Japan formed a multilateral Inter-Agency Orbital Debris Coordination Committee (IADC). Since that time the Russian Space Agency (RSA), the Chinese National Space Agency (CNSA), the French National Space Agency (CNES), the British National Space Agency (BNSA), and the Indian Space Agency (ISRO) have joined the IADC. In 1994 orbital debris discussions began in the United Nations under the auspices of the Scientific and Technical Subcommittee of the Committee on the Peaceful Uses of Outer Space (UNCOPUOS). In 1995 UNCOPUOS adopted a multi-year program for studying orbital debris. In 1993 the White House Office of Science and Technology Policy (OSTP) and the National Security Council (NSC) undertook an interagency review to revise and update the 1989 ''Report on Orbital Debris''. In November 1995 Dr. John H. Gibbons, the Assistant to the President for Science and Technology, released the ''interagency Report on Orbital Debris - 1995'. RP Levin, GM (reprint author), NASA HEADQUARTERS,OFF SPACE FLIGHT,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2201-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2813 BP 226 EP 232 DI 10.1117/12.256067 PG 7 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG73A UT WOS:A1996BG73A00022 ER PT J AU Colin, C Fabre, J McQuillen, J AF Colin, C Fabre, J McQuillen, J TI Bubble and slug flow at microgravity conditions: State of knowledge and open questions SO CHEMICAL ENGINEERING COMMUNICATIONS LA English DT Article DE two phase flow; microgravity; bubble slug ID GAS-LIQUID FLOW; TRANSITIONS; PATTERNS AB Based on the experiments carried out over the past decade at microgravity conditions, an overview of our current knowledge of bubbly and slug flows is presented. The transition from bubble to slug Bow, the void fraction and the pressure drop are discussed from the data collected in the literature. The transition from bubble to slug flow may be predicted by introducing a critical void fraction that depends on the fluid properties and the pipe diameter: however, the role of coalescence which controls this transition is not clearly understood. The void fraction may be accurately calculated using a drift-flux model: it is shown from local measurements that the drift of the gas with respect to the mixture is due to the non uniform radial distribution of void fraction. The pressure drop happens to be controlled by the liquid Bow for bubbly Bow whereas for slug flow the experimental results show that pressure drops is larger than expected. From this study, the guidelines for future research in microgravity are given. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP Colin, C (reprint author), INST MECAN FLUIDES TOULOUSE,URA CNRS 005,AVE CAMILLE SOULA,F-31400 TOULON,FRANCE. RI Colin, Catherine/B-2674-2009 NR 27 TC 46 Z9 49 U1 0 U2 6 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0098-6445 J9 CHEM ENG COMMUN JI Chem. Eng. Commun. PY 1996 VL 141 BP 155 EP 173 DI 10.1080/00986449608936414 PG 19 WC Engineering, Chemical SC Engineering GA UM064 UT WOS:A1996UM06400009 ER PT J AU DallBauman, L AF DallBauman, L TI Water recovery on spacecraft SO CHEMICAL ENGINEERING PROGRESS LA English DT Letter RP DallBauman, L (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU AMER INST CHEMICAL ENGINEERS PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0360-7275 J9 CHEM ENG PROG JI Chem. Eng. Prog. PD JAN PY 1996 VL 92 IS 1 BP 8 EP 8 PG 1 WC Engineering, Chemical SC Engineering GA TP776 UT WOS:A1996TP77600002 ER PT B AU McKay, CP AF McKay, CP BE ChelaFlores, J Raulin, F TI Oxygen and the rapid evolution of life on Mars SO CHEMICAL EVOLUTION: PHYSICS OF THE ORIGIN AND EVOLUTION OF LIFE LA English DT Proceedings Paper CT 4th Trieste Conference on Chemical Evolution - Physics of the Origin and Evolution of Life CY SEP 04-08, 1995 CL TRIESTE, ITALY SP Int Ctr Theoret Phys, Int Ctr Genet Engn & Biotechnol, UNESCO, Univ Paris 12, Val de Marne AB Mars had liquid water, and possibly life, on it surface about 3.5 - 4 billion years ago. Because Mars is smaller, lacks plate tectonics, and had smaller initial water abundance, it would have been more readily oxidized than the Earth. Thus, after the origin of life the key evolutionary steps - oxygenic photosynthesis, endosymbiosis, and multicellularity - related to the concentration of atmospheric oxygen could have occurred much more rapidly on Mars than on Earth. It is possible that during its brief biotic history, estimated to be a billion years or less, Mars experienced the range of biological evolution that would be duplicated on the Earth only with the start of the Cambrian. Examining the fossil record on Mars will be a direct test of these speculations. RP McKay, CP (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035, USA. NR 0 TC 2 Z9 3 U1 1 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4111-2 PY 1996 BP 177 EP 184 PG 8 WC Multidisciplinary Sciences SC Science & Technology - Other Topics GA BH48F UT WOS:A1996BH48F00015 ER PT J AU Azen, SP Mack, WJ CashinHemphill, L LaBree, L Shircore, AM Selzer, RH Blankenhorn, DH Hodis, HN AF Azen, SP Mack, WJ CashinHemphill, L LaBree, L Shircore, AM Selzer, RH Blankenhorn, DH Hodis, HN TI Progression of coronary artery disease predicts clinical coronary events - Long-term follow-up from the Cholesterol Lowering Atherosclerosis Study SO CIRCULATION LA English DT Article DE angiography; atherosclerosis; follow-up studies; coronary disease ID COLESTIPOL-NIACIN THERAPY; END-POINT MEASURES; PROGNOSTIC-SIGNIFICANCE; BYPASS GRAFTS; HEART-DISEASE; REGRESSION; TRIALS; HYPERCHOLESTEROLEMIA; ANGIOGRAPHY; DIET AB Background Progression of coronary artery disease is assumed to be a surrogate end point for clinical coronary events. Because no single method or measure for a coronary angiographic end point is uniformly accepted as optimal, the utility and validity of surrogate end points for predicting clinical coronary events remain unsettled. Methods and Results The Cholesterol Lowering Atherosclerosis Study randomized 162 nonsmoking, 40- to 59-year-old men with previous coronary artery bypass graft surgery to colestipol/niacin plus diet or placebo plus diet. Atherosclerosis change on 2-year coronary angiograms was evaluated by a consensus panel and by quantitative coronary angiography (average per-subject change in percent diameter stenosis [%S] and minimum lumen diameter [MLD]). With all three end points, the benefit of colestipol/niacin treatment on coronary artery atherosclerosis has been reported. Annual follow-up for an average of 7 years (range, 6.3 months to 10 years) has been carried out on all subjects who completed the 2-year angiogram. Clinical coronary events (need for revascularization, nonfatal acute myocardial infarction, and coronary death) have been documented. Risk of clinical coronary events was positively related to coronary lesion progression for all three surrogate end points (P<.05). New lesion formation in bypass grafts (P=.02) and progression of mild/moderate lesions (<50%S) were predictive of clinical coronary events (P<.01). Change in MLD contributed significantly to the prediction of clinical coronary events beyond a model with %S alone (P<.05). Conclusions In this population of nonsmoking men with previous bypass surgery, both the consensus panel- and quantitative coronary angiography-based end points of coronary artery disease progression predict clinical coronary events. Subjects who demonstrate greater coronary artery lesion progression have an increased risk of future clinical coronary events. Design of shorter, smaller trials of antiatherosclerotic agents is justified. C1 UNIV SO CALIF,SCH MED,DIV CARDIOL,ATHEROSCLEROSIS RES UNIT,DEPT PREVENT MED,LOS ANGELES,CA 90033. UNIV SO CALIF,SCH MED,DEPT PREVENT MED,STAT CONSULTAT & RES CTR,LOS ANGELES,CA 90033. JET PROP LAB,PASADENA,CA. FU NHLBI NIH HHS [R01-HL-45005, R01-HL-49885] NR 30 TC 146 Z9 151 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 JAN 1 PY 1996 VL 93 IS 1 BP 34 EP 41 PG 8 WC Cardiac & Cardiovascular Systems; Peripheral Vascular Disease SC Cardiovascular System & Cardiology GA TL997 UT WOS:A1996TL99700008 PM 8616937 ER PT J AU Stothers, RB AF Stothers, RB TI The great dry fog of 1783 SO CLIMATIC CHANGE LA English DT Article ID BASALTIC FISSURE ERUPTIONS; ICE-CORE; RECORD; ATMOSPHERE; SULFUR; SHEET AB A persistent dry haze hung over Europe during the second half of 1783. Spawned by the Laki basalt fissure eruption in southern Iceland, this fog evoked much contemporary written commentary, from which the course of events is here reconstructed in a quantitative way. It was the densest European dry fog since the late Middle Ages, and it lay primarily in the troposphere. Spreading broadly toward the south and east, it nevertheless remained mostly confined to the North Atlantic, western Eurasia, and the Arctic. Previously it was believed by many to have risen to the middle stratosphere and to have blanketed much of North America. Composed of sulfuric-acid aerosols, its total mass reached about 200 megatons, as determined from its observed optical thickness. Several authors have pointed out that it may have been responsible for the cold winter of 1783-84, which caused much economic and social distress in many parts of the Northern Hemisphere. As the earliest dry fog to be studied scientifically, it remains the paradigm even today and poses an interesting challenge to climate modelers. RP NASA, GODDARD SPACE FLIGHT CTR, INST SPACE STUDIES, 2880 BROADWAY, NEW YORK, NY 10025 USA. NR 76 TC 57 Z9 62 U1 1 U2 12 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0165-0009 EI 1573-1480 J9 CLIMATIC CHANGE JI Clim. Change PD JAN PY 1996 VL 32 IS 1 BP 79 EP 89 DI 10.1007/BF00141279 PG 11 WC Environmental Sciences; Meteorology & Atmospheric Sciences SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences GA TV036 UT WOS:A1996TV03600006 ER PT B AU Gelderman, R AF Gelderman, R BE Trimble, V Reisenegger, A TI Tracking the mass in cluster cooling flows: Kinematics and ionization in the cD galaxy 2A 0335+096 SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,NATL RES COUNCIL,GREENBELT,MD 20771. NR 0 TC 4 Z9 4 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 168 EP 171 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00019 ER PT B AU Loewenstein, M Mushotzky, RF AF Loewenstein, M Mushotzky, RF BE Trimble, V Reisenegger, A TI Enrichment and energetics of the intracluster medium and elliptical galaxies SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 197 EP 200 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00026 ER PT B AU Jones, LR Scharf, CA Ebeling, H Perlman, E Malkan, M Wegner, G AF Jones, LR Scharf, CA Ebeling, H Perlman, E Malkan, M Wegner, G BE Trimble, V Reisenegger, A TI Faint extended X-ray sources: A new large area survey SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 209 EP 212 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00029 ER PT B AU Michalitsianos, AG Oliversen, RJ Maran, SP AF Michalitsianos, AG Oliversen, RJ Maran, SP BE Trimble, V Reisenegger, A TI Detection of O VI lambda 1033 and far-UV spectral variability in lenses UM 425 AND PG1115+080 SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 241 EP 246 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00036 ER PT B AU Scharf, CA Jahoda, K Boldt, E AF Scharf, CA Jahoda, K Boldt, E BE Trimble, V Reisenegger, A TI Cosmological dipoles in the photon number counts of Gamma-Ray bursts SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI Jahoda, Keith/D-5616-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 263 EP 266 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00041 ER PT B AU Felten, JE AF Felten, JE BE Trimble, V Reisenegger, A TI Mitigating the baryon crisis in clusters: Can magnetic pressure be important? SO CLUSTERS, LENSING, AND THE FUTURE OF THE UNIVERSE SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Clusters, Lensing, and the Future of the Universe/160th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 26-28, 1995 CL UNIV MARYLAND, COLLEGE PK, MD SP Astron Soc Pacific, Space Telescope Sci Inst, Natl Radio Astron Observ, Natl Sci Fdn, Univ Space Res Assoc, Goddard Space Flight Ctr, Carnegie Inst Washington, Univ Maryland Astron Dept HO UNIV MARYLAND C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 26 Z9 26 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-09-0 J9 ASTR SOC P PY 1996 VL 88 BP 271 EP 274 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF08W UT WOS:A1996BF08W00043 ER PT J AU Bellan, J AF Bellan, J TI External cluster combustion of binary-fuel drops SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE binary-fuels drops; external cluster flames; collective dames ID NONDILUTE CLUSTERS; EVAPORATION; IGNITION AB A model describing external sheet combustion of a cluster of drops has been developed for clusters of binary-fuel drops. The binary-fuel is assumed to be a solvent-solute combination in which the solute is much more volatile than the solvent whose initial mass fraction within the mixture is larger than that of the solute. Both the ignition timing and location are calculated using criteria previously derived; for the range of air/fuel mass ratios considered, ignition always occurs around the cluster. Following ignition, an internal dash dame burns all the oxygen within the cluster. An external sheet dame ensues fueled by vapor released from the cluster. Results show that drop interactions are important in modifying the amount of fuel burnt. It is only for small initial cluster velocities and for large air/fuel mass ratios that the external flame behaves approximately like a classical diffusion dame in that it almost burns all the fuel released from the cluster. For all other conditions, the amount of fuel burnt is smaller than that released from the cluster. These conclusions are independent of the initial solute mass fraction and of the Arrhenius ignition parameters having assumed them identical for solvent and solute. RP Bellan, J (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 17 TC 2 Z9 2 U1 0 U2 2 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1996 VL 120 IS 1-6 BP 213 EP 236 DI 10.1080/00102209608935574 PG 24 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA WP801 UT WOS:A1996WP80100009 ER PT J AU Miller, RS Bellan, J AF Miller, RS Bellan, J TI Analysis of reaction products and conversion time in the pyrolysis of cellulose and wood particles SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE biomass; cellulose; modeling; porous particle; pyrolysis; wood ID STAGNANT BOUNDARY-LAYER; SURROUNDING GAS-PHASE; CARBON PARTICLE; CHAR COMBUSTION; SOLID FUELS; DIFFUSION; MODEL; BIOMASS; SIMULATION; KINETICS AB A detailed mathematical model is presented for the temporal and spatial accurate modeling of solid-fluid reactions in porous particles for which volumetric reaction rate data is known a priori and both the porosity and the permeability of the particle are large enough to allow for continuous gas phase flow. The methodology is applied to the pyrolysis of spherically symmetric biomass particles by considering previously published kinetics schemes for both cellulose and wood. A parametric study is performed in order to illustrate the effects of reactor temperature, heating rate, porosity, initial particle size and initial temperature on char yields and conversion times. It is observed that while high temperatures and fast heating rates minimize the production of char in both reactions, practical limits exist due to endothermic reactions, heat capacity and thermal diffusion. Three pyrolysis regimes are identified: 1) initial heating, 2) primary reaction at the effective pyrolysis temperature and 3) final heating. The relative durations of each regime are independent of the reactor temperature and are approximately 20%, 60% and 20% of the total conversion time, respectively, The results show that models which neglect the thermal and species boundary layers exterior to the particle will generally over predict both the pyrolysis rates and experimentally obtainable tar yields. An evaluation of the simulation results through comparisons with experimental data indicates that the wood pyrolysis kinetics is not accurate; particularly at high reactor temperatures. RP Miller, RS (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 38 TC 39 Z9 40 U1 3 U2 17 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1996 VL 119 IS 1-6 BP 331 EP 373 DI 10.1080/00102209608952004 PG 43 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA WP800 UT WOS:A1996WP80000015 ER PT J AU Schiller, DN Ross, HD Sirignano, WA AF Schiller, DN Ross, HD Sirignano, WA TI Computational analysis of flame spread across alcohol pools SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE flame spread; liquid pools; flame pulsations; buoyancy; surface tension; mechanisms ID BUOYANT-THERMOCAPILLARY FLOW; LIQUID FUELS; MECHANISMS; BEHAVIOR; SURFACE; MODEL AB Pulsating and uniform spread across n-propanol and ethanol liquid fuel pools is simulated via a two-dimensional, transient, numerical model which incorporates finite-rate chemical kinetics, variable properties, and a partially adaptive finite-difference gridding scheme. The model is compared to detailed, independent experimental data. The explanation and characterization of the pulsating and uniform flame spread phenomena are developed Pulsating flame spread requires a gas-phase recirculation cell just forward of the dame. This cell entrains evaporating fuel vapor. The size and existence of the recirculation cell is determined by the extent of liquid motion ahead of the flame (delta(flow)) and by opposed flow in the gas phase, naturally induced by buoyancy. The amplitude and period of the pulsations each increase with delta(flow). Over the range of pool depths that were investigated (2 to 10mm), the liquid-phase flow Is primarily affected by large surface-tension variations along the liquid surface and not by buoyancy. The critical role of gas expansion near the reaction zone in the dame pulsation cycle is identified. Contrary to previous conjectures, mass diffusion at the flame leading edge is vital for both uniform and pulsating spread. Although there is little liquid motion more than 2 mm ahead of the flame in the uniform spread regime, liquid-phase convection driven by thermocapillarity is the dominant mechanism for transporting heat ahead of the dame for both the pulsating and uniform regimes in normal gravity. As the gravity level decreases, the fuel consumption rate and maximum flame temperature decrease, the flame standoff height increases, and the gas-phase flow held and dame spread rate are governed more by hot gas expansion and very lean, premixed chemical reactions than by the coupling with the liquid phase. Pulsating flame spread does not occur in microgravity without forced, opposed gas-phase flow because a gas-phase recirculation cell does not form ahead of the dame leading edge. Unlike normal gravity dame spread, the microgravity dame spread rate is very sensitive to the thickness y(1) of the initially uniform layer of fuel vapor above the liquid surface. For relatively small y(1), the model predicts that conditions yielding pulsations in normal gravity correspond to extinction in microgravity. For relatively large y(1), the dame spread rate increases with decreasing gravity level. C1 NASA,LEWIS RES CTR,MICROGRAV COMBUST BRANCH,CLEVELAND,OH. RP Schiller, DN (reprint author), UNIV CALIF IRVINE,DEPT MECH & AEROSP ENGN,IRVINE,CA 92697, USA. NR 43 TC 33 Z9 35 U1 0 U2 4 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1996 VL 118 IS 4-6 BP 203 EP & DI 10.1080/00102209608951980 PG 56 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA WP799 UT WOS:A1996WP79900001 ER PT J AU VanderWal, RL AF VanderWal, RL TI Onset of carbonization: Spatial location via simultaneous LIF-LII and characterization via TEM SO COMBUSTION SCIENCE AND TECHNOLOGY LA English DT Article DE laser-induced fluorescence; laser-induced incandescence; transmission electron microscopy ID LASER-INDUCED INCANDESCENCE; AIR DIFFUSION FLAME; SOOT-VOLUME FRACTION; PREMIXED FLAMES; ENHANCED SOOT; LAMINAR; FLUORESCENCE; DIAGNOSTICS; PARTICLES; PROFILES AB Soot formation/growth processes include fuel pyrolysis reactions resulting in PAHs, the coalescence/condensation of PAHs and other fuel pyrolysis intermediates ultimately leading to soot. Here simultaneous LIF-LII images identify the fuel pyrolysis (PAH containing) and soot containing regions along the axial flow streamline within a laminar ethylene/air diffusion flame. Spectrally resolved emission, excitation wavelength dependence and temporal decay characterize and identify the LIF and LII signals within the simultaneous LIF-LII images. The boundary between the PAH and soot containing regions is postulated to mark the onset of carbonization of condensed/coalesced soot precursor material. Support for this postulate is based on the observed photophysical changes resulting in a decline in the LIF intensity and emergence of LII signal along the axial streamline between 33 and 34 mm HAB. Bright and dark field transmission electron microscopy images of material sampled from the axial centerline at this axial height confirm the interpretation of the in-situ optical measurements by revealing the initial transformation of soot precursor material towards solid carbonaceous soot. RP VanderWal, RL (reprint author), NASA,LEWIS RES CTR,NYMA,MS 110-3,21000 BROOKPARK RD,CLEVELAND,OH 44135, USA. NR 60 TC 22 Z9 22 U1 0 U2 2 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0010-2202 J9 COMBUST SCI TECHNOL JI Combust. Sci. Technol. PY 1996 VL 118 IS 4-6 BP 343 EP & PG 19 WC Thermodynamics; Energy & Fuels; Engineering, Multidisciplinary; Engineering, Chemical SC Thermodynamics; Energy & Fuels; Engineering GA WP799 UT WOS:A1996WP79900006 ER PT S AU Kaspi, VM Manchester, RN Bailes, M Bell, JF AF Kaspi, VM Manchester, RN Bailes, M Bell, JF BE VanParadijs, J VanDenHeuvel, EPJ Kuulkers, E TI Timing observations of the SMC binary PSR J0045-7319 SO COMPACT STARS IN BINARIES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 165th Symposium of the International-Astronomical-Union on Compact Stars in Binaries CY AUG 15-19, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID PULSAR; COMPANION AB We describe radio timing observations of the binary pulsar PSR J0045-7319 made over the past 3.3 yr. We show that a simple timing model involving a standard Keplerian orbit describes the data well; however, significant low-level systematic residuals never before seen in other binary pulsars remain. We consider various possible origins of the residuals. C1 CSIRO,AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. AUSTRALIAN NATL UNIV,MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT,AUSTRALIA. RP Kaspi, VM (reprint author), CALTECH,JET PROP LAB,IPAC,PASADENA,CA 91125, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3845-6 J9 IAU SYMP PY 1996 IS 165 BP 271 EP 277 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78G UT WOS:A1996BE78G00023 ER PT S AU Finger, MH Wilson, RB Harmon, BA Paciesas, WS AF Finger, MH Wilson, RB Harmon, BA Paciesas, WS BE VanParadijs, J VanDenHeuvel, EPJ Kuulkers, E TI Aperiodic flux variability in A 0535+262 SO COMPACT STARS IN BINARIES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 165th Symposium of the International-Astronomical-Union on Compact Stars in Binaries CY AUG 15-19, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID X-RAY SOURCES; ACCRETION; PERIOD AB A ''giant'' outburst of A 0535+262, a transient X-ray binary pulsar, was observed in 1994 February and March with the Burst and Transient Source Experiment (BATSE) onboard the Compton Gamma-Ray Observatory. During the outburst power spectra of the hard X-ray flux contained a QPO-like component with a FWHM of approximately 50% of its center frequency. Over the course of the outburst the center frequency rose smoothly from 35 mHz to 70 mHz and then fell to below 40 mHz. We compare this QPO frequency with the neutron star spin-up rate, and discuss the observed correlation in terms of the beat frequency and Keplerian frequency QPO models in conjunction with the Ghosh-Lamb accretion torque model. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. UNIV ALABAMA,HUNTSVILLE,AL 35899. NR 14 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3845-6 J9 IAU SYMP PY 1996 IS 165 BP 313 EP 319 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78G UT WOS:A1996BE78G00027 ER PT S AU Paciesas, WS Zhang, SN Rubin, BC Harmon, BA Wilson, CA Fishman, GJ AF Paciesas, WS Zhang, SN Rubin, BC Harmon, BA Wilson, CA Fishman, GJ BE VanParadijs, J VanDenHeuvel, EPJ Kuulkers, E TI Discovery of a new X-ray transient in scorpius - GRO J1655-40 equivalent to X-ray Nova Scorpii 1994 SO COMPACT STARS IN BINARIES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 165th Symposium of the International-Astronomical-Union on Compact Stars in Binaries CY AUG 15-19, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union AB A bright transient X-ray source, GRO J1655-40 (X-ray Nova Scorpii 1994) was discovered with BATSE (the Burst and Transient Source Experiment) in late July 1994. More recently, the source also became a strong radio emitter, its rise in the radio being approximately anticorrelated with a decline in the hard X-ray intensity. High-resolution radio observations subsequent to this symposium showed evidence for superluminally expanding jets. Since the hard X-ray emission extends to at least 200 keV and we find no evidence of pulsations, we tentatively classify the source as a black-hole candidate. However, its hard X-ray spectrum is unusually steep (power-law photon index alpha similar or equal to -3) relative to most other black-hole candidates. In this regard, it resembles GRS 1915+105, the first galactic source to show superluminal radio jets. C1 UNIV ALABAMA,SPACE RES ASSOC,HUNTSVILLE,AL 35806. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. RP Paciesas, WS (reprint author), UNIV ALABAMA,HUNTSVILLE,AL 35899, USA. NR 30 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3845-6 J9 IAU SYMP PY 1996 IS 165 BP 363 EP 367 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78G UT WOS:A1996BE78G00032 ER PT S AU Fishman, GJ AF Fishman, GJ BE VanParadijs, J VanDenHeuvel, EPJ Kuulkers, E TI Gamma-ray bursts: Observational overview SO COMPACT STARS IN BINARIES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 165th Symposium of the International-Astronomical-Union on Compact Stars in Binaries CY AUG 15-19, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union AB Gamma-ray bursts remain one of the greatest mysteries in astrophysics in spite of new and more detailed observations made with the BATSE experiment on the Compton Observatory. The new observation with the greatest impact has been the observed isotropic distribution of bursts along with a deficiency of the weak bursts which would be expected from a homogeneous burst distribution. This is not compatible with any known Galactic population of objects. Other recent important observations include an enormous variety of burst morphologies and gamma-ray burst photons extending to GeV energies. A time dilation effect has also been reported to be observed in gamma-ray bursts. RP Fishman, GJ (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812, USA. NR 39 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3845-6 J9 IAU SYMP PY 1996 IS 165 BP 467 EP 476 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78G UT WOS:A1996BE78G00043 ER PT S AU Kouveliotou, C AF Kouveliotou, C BE VanParadijs, J VanDenHeuvel, EPJ Kuulkers, E TI Soft gamma repeaters revisited with BATSE SO COMPACT STARS IN BINARIES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 165th Symposium of the International-Astronomical-Union on Compact Stars in Binaries CY AUG 15-19, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID HIGH-ENERGY TRANSIENT AB After the first 4 years of its operation, the Burst and Transient Source Experiment (BATSE) onboard the Compton Gamma Ray Observatory (CGRO), detected recurrent emission from two of the three known Soft Gamma Repeater (SGR) sources, SGR 1900+14 and SGR 1806-20. The reactivation of the latter prompted a quick international campaign resulting in the identification of the X-ray counterpart of the source, which also coincides with a compact radio source. The absence of detection of new sources in the 4 years of BATSE operation and the reactivation of two of the three already known SGRs, indicates that these objects are rare. We give here a short review of the previously detected SGR emissions and present the recent results obtained with BATSE. RP Kouveliotou, C (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,USRA,ES-84,HUNTSVILLE,AL 35812, USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3845-6 J9 IAU SYMP PY 1996 IS 165 BP 477 EP 488 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78G UT WOS:A1996BE78G00044 ER PT B AU Scherer, K Neutsch, W AF Scherer, K Neutsch, W BE Rettig, TW Hahn, JM TI On the secular evolution of asteroids SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB The evolution of asteroidal orbits under the secular perturbations of Jupiter is studied. The influence of Jupiter is calculated using the Gaussian secular perturbation method applied in a way such that the perturbing function can be calculated analytically. The remaining integration over the orbit uses the Runge-Kutta method operating on the angular momentum vector (C) over right arrow and the Runge-Lenz vector (A) over right arrow Tile evolution of these two vectors is displayed in a stereographic projection in which the paths of these vectors evolve along characteristic epicycles. In this projection, the vectors of members of classical Hirayama families lie within small annuli and are nonuniformly distributed within these annuli. Moreover, the members of a family can be regarded as ''data'' measured at different evolutionary times. Thus the orbits of these asteroids can be characterized by their evolutionary curves and the classical families understood as dynamical clusters in element space. C1 JET PROPULS LAB,PASADENA,CA. RP Scherer, K (reprint author), 510 SAN JOSE,BURBANK,CA 91510, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 69 EP 74 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00006 ER PT B AU Standish, EM AF Standish, EM BE Rettig, TW Hahn, JM TI Pluto and planets X SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB The discovery of Neptune was inevitable; its gravitational force causes residuals in the observations of Uranus which are large and undeniable. The subsequent attempts at repeating that type of discovery, however, have met with a notable lack of success, because they were doomed from the start: the remaining residuals are smaller than many of the known systematic errors which exist in the observations. It is now known that the discovery of Pluto, in contrast, was the result of a systematic search. While the ephemerides of Uranus and Neptune seem to have no unexplained problems, the ephemeris of Pluto does have problems. The observations span only a small portion of the planet's full period and they are prone to systematic zone errors in the catalogues. Furthermore, there is a large bias which can not be removed from the residuals by a mere orbit adjustment; its cause is presently unknown though it probably is the result of inhomogeneous data reductions. Such problems become especially important for navigational concerns with the Pluto Fast Flyby Mission. For that, optical navigation will provide certain relative ephemeris up-dates, but they will not be able to improve the uncertainties in the radial direction until only a few days before encounter. Improvements to the absolute ephemerides of Pluto will come from re-measurement of older photographic plates using newer measuring equipment, reductions of such measurements with respect to modern star catalogues (Hipparcos/Tycho) and new positional determinations using modern measuring techniques, such as photoelectric, CCD, and, possibly, radio measurements. RP Standish, EM (reprint author), JET PROP LAB,5180 PRINCESS ANNE RD,LA CANADA FLINTRIDGE,CA 91011, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 163 EP 170 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00017 ER PT B AU Dones, L Levison, HF Duncan, M AF Dones, L Levison, HF Duncan, M BE Rettig, TW Hahn, JM TI On the dynamical lifetimes of planet-crossing objects SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB We have carried out orbital integrations of many test particles with initial orbits similar to those of four Centaurs (Chiron, Pholus, 1993 HA(2), and 1994 TA) and two distant Jupiter-family comets (Schwassmann-Wachmann 1 (S-W 1) and Oterma). Our integrations include the mutual interactions of the four giant planets, and were performed for times up to 50 Myr. The median dynamical lifetime t(med) ranges from 0.5 Myr for S-W 1 to 5 Myr for 1993 HA(2). The usual fate of each object is ejection from the solar system. At early times (t < t(med)), the population of each object decays exponentially. At times of order 2-20 t(med), the populations decline more slowly, so that the fraction of survivors is roughly t(med)/t. Many late survivors evolve to orbits with larger perihelia, which typically suffer smaller planetary perturbations. We compare our results with the predictions of a cometary diffusion equation and a Monte Carlo, Opik type code. The diffusion equation overestimates the number of survivors at early times and underestimates the survivors at late times; the Opik code generally overestimates the survivors at all times. The discrepancy between the integrations and the Opik code probably arises because close encounters between small bodies and planets tend to be clustered in time. RP Dones, L (reprint author), NASA,SAN JOSE STATE UNIV FDN,AMES RES CTR,2047 MONTECITO AVE,MT VIEW,CA 94043, USA. RI Levison, Harold/C-6061-2013 OI Levison, Harold/0000-0001-5847-8099 NR 0 TC 27 Z9 27 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 233 EP 244 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00021 ER PT B AU Bender, DF AF Bender, DF BE Rettig, TW Hahn, JM TI Jupiter gravity assist trajectories to objects in the Kuiper belt SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB It is supposed that a study of objects in the Kuiper belt at about 40 AU from the Sun is desired with spacecraft that fly by them. This paper suggests that almost any target in the belt can be encountered once every 12 years on a Jupiter gravity assist trajectory requiring a C3 of about 100 (km/s)(2), a flight time of 11-15 years, and a Jupiter flyby radius of not less than 5.0 Jupiter radii. The technique consists in showing that at every Jupiter opportunity about thirty degrees of longitude in the belt can be covered by varying the Jupiter flyby conditions. Sample trajectories to all the presently known Kuiper objects as well as to Pluto are thus tabulated for the interval 2005 to 2017. RP Bender, DF (reprint author), JET PROP LAB,11734 E MERIT LANE,WHITTIER,CA 90601, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 259 EP 263 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00024 ER PT B AU Weissman, PR AF Weissman, PR BE Rettig, TW Hahn, JM TI The Oort cloud SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB Dynamical studies during the past two decades have greatly increased our understanding of the Oort cloud of comets which surrounds the solar system. Cometary orbits in the cloud evolve under the complex interaction of stellar, galactic, and giant molecular cloud perturbations, as well as planetary and nongravitational perturbations when the comets re-enter the planetary region. Evidence has continued to build for a dense, inner Oort cloud of comets which acts as a reservoir to replenish the outer cloud as comets there are stripped away. The total number of comets in the dynamically active outer Oort cloud is on the order of 10(12), and about five times that number in the unseen inner Oort cloud, with a total estimated mass of similar to 38 Earth masses. Temporal variations in the flux of comets from the Oort cloud into the planetary region by a factor of four are possible due to the varying galactic tide, and by a factor of similar to 300 due to perturbations by stars penetrating the Oort cloud or close GMC encounters. The most intense cometary ''showers'' may result in biological extinction events on the Earth. Comets in the Oort cloud are processed by galactic cosmic rays, heated by nearby supernovae, eroded by interstellar dust impacts, and disrupted by mutual collisions (in the inner cloud). A detailed estimate of the Oort cloud's dynamical history is not possible because of the inability to reconstruct the Sun's varying galactic motion over the history of the solar system, and because of uncertainty over where comets actually formed. However, it is likely that a substantial fraction of the original Oort cloud population has been lost to interstellar space. We are approaching the time when Oort clouds around other stars may be detectable, though searches to date have so far been negative. RP Weissman, PR (reprint author), CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,MAIL STOP 183-601,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 54 Z9 55 U1 0 U2 2 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 265 EP 288 PG 24 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00025 ER PT B AU Ward, WR AF Ward, WR BE Rettig, TW Hahn, JM TI Planetary accretion SO COMPLETING THE INVENTORY OF THE SOLAR SYSTEM SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Symposium on Completing the Inventory of the Solar System / 106th Annual Meeting of the Astronomical-Society-of-the-Pacific CY JUN 25-30, 1994 CL LOWELL OBSERV, FLAGSTAFF, AZ SP Astron Soc Pacific HO LOWELL OBSERV AB This paper reviews current ideas concerning the planetary formation process. An order of magnitude discussion is presented, concentrating on the principal concepts that comprise present models. The overall accretion process can be partitioned into three stages, each dominated by different mechanisms and/or styles of accumulation. Characteristic time scales are estimated for each stage and compared with the probable lifetime of the primordial nebula. Several ideas for shortening or eliminating the slow, problematic late-stage are discussed. RP Ward, WR (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 9 Z9 9 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-27-9 J9 ASTR SOC P PY 1996 VL 107 BP 337 EP 361 PG 25 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH18W UT WOS:A1996BH18W00029 ER PT J AU Jaunky, N Knight, NF Ambur, DR AF Jaunky, N Knight, NF Ambur, DR TI Formulation of an improved smeared stiffener theory for buckling analysis of grid-stiffened composite panels SO COMPOSITES PART B-ENGINEERING LA English DT Article DE stiffened composite panels; smeared stiffener theory; buckling AB An improved smeared stiffener theory for stiffened panels is presented that includes skin-stiffener interaction effects. The neutral surface profile of the skin-stiffener combination is developed analytically using the minimum potential energy principle and statics conditions. The skin-stiffener interaction is accounted for by computing the bending and coupling stiffness due to the stiffener and the skin in the skin-stiffener region about a shift in the neutral axis at the stiffener. Buckling load results for axially stiffened, orthogrid, and general grid-stiffened panels are obtained using the smeared stiffness combined with a Rayleigh-Ritz method and are compared with results from detailed finite element analyses. Copyright (C) 1996 Elsevier Science Limited C1 NASA,LANGLEY RES CTR,STRUCT MECH BRANCH,HAMPTON,VA 23681. RP Jaunky, N (reprint author), OLD DOMINION UNIV,DEPT AEROSP ENGN,NORFOLK,VA 23529, USA. NR 14 TC 27 Z9 35 U1 0 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 1359-8368 J9 COMPOS PART B-ENG JI Compos. Pt. B-Eng. PY 1996 VL 27 IS 5 BP 519 EP 526 DI 10.1016/1359-8368(96)00032-7 PG 8 WC Engineering, Multidisciplinary; Materials Science, Composites SC Engineering; Materials Science GA VL654 UT WOS:A1996VL65400015 ER PT J AU Lih, SS Mal, AK AF Lih, SS Mal, AK TI Response of multilayered composite laminates to dynamic surface loads SO COMPOSITES PART B-ENGINEERING LA English DT Article DE composite laminates; distributed surface load; waves; stress-time-history ID WAVE-PROPAGATION; PLATE AB A theoretical investigation of the response of multilayered composite laminates to concentrated and distributed dynamic surface loads is carried out. Each layer of the laminate is assumed to be transversely isotropic and dissipative with arbitrarily oriented symmetry axis. The dissipative property of the material is modeled approximately through the introduction of a frequency-dependent damping function. A multiple transform technique is used to calculate the spectra and time histories of the displacements and stresses produced by a variety of dynamic loads, and the quantitative features of the waves produced in the laminate are determined. The methodology developed in this work is expected to be useful in the prediction of the response of composite laminates to impact loads and also in the characterization of acoustic emission (AE) sources in these materials under static and dynamic loads. Copyright (C) 1996 Elsevier Science Limited C1 UNIV CALIF LOS ANGELES,DEPT MECH & AEROSP ENGN,LOS ANGELES,CA 90095. RP Lih, SS (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 13 TC 20 Z9 20 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 1359-8368 J9 COMPOS PART B-ENG JI Compos. Pt. B-Eng. PY 1996 VL 27 IS 6 BP 633 EP 641 DI 10.1016/1359-8368(95)00033-X PG 9 WC Engineering, Multidisciplinary; Materials Science, Composites SC Engineering; Materials Science GA VZ265 UT WOS:A1996VZ26500012 ER PT J AU Dexter, HB Hasko, GH AF Dexter, HB Hasko, GH TI Mechanical properties and damage tolerance of multiaxial warp-knit composites SO COMPOSITES SCIENCE AND TECHNOLOGY LA English DT Article DE multiaxial knitted fabrics; resin transfer molding; mechanical properties; damage tolerance; composite materials AB Multiaxial warp-knit fabric is a relatively new textile material form that is being considered as an alternative to biaxial woven and unidirectional broadgoods. The paper presents the results of an experimental characterization of composite materials reinforced with four different knitted carbon fabrics and compares the results with conventional prepreg tape and uniweave fabric composites. Tension and compression mechanical property tests, open hole tension and open hole compression tests, and compression after impact tests were conducted on fabric-reinforced carbon/epoxy composite specimens to assess material performance. The fabrics were produced on Liba and Mayer multiaxial warp-knitting machines. Two different generations of Liba machines were used by Hexcel and Saerbeck and a Mayer machine was used by Milliken to produce 4-ply multiaxial fabrics. Composite test laminates were fabricated by two resin transfer molding methods with two different epoxy resin systems. Test results indicate that high quality knitted carbon fabrics can be produced and resin transfer molding can be used to produce aerospace quality composite materials. Tension and compression strength reductions for the Hexcel and Milliken fabric composites ranged from 20 to 30% compared to prepreg tape laminates. However, the knitted fabric composites exhibited compression after impact strengths up to 80% higher than the strength of comparable prepreg tape laminates. The performance of the Saerbeck knitted fabric was comparable to uniweave fabric for all the tests conducted. C1 LOCKHEED ENGN & SCI CO,HAMPTON,VA 23666. NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 7 TC 41 Z9 43 U1 0 U2 7 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0266-3538 J9 COMPOS SCI TECHNOL JI Compos. Sci. Technol. PY 1996 VL 56 IS 3 BP 367 EP 380 DI 10.1016/0266-3538(95)00107-7 PG 14 WC Materials Science, Composites SC Materials Science GA UH909 UT WOS:A1996UH90900014 ER PT B AU Tsynkov, SV AF Tsynkov, SV BE Desideri, JA Hirsch, C LeTallec, P Pandolfi, M Periaux, J TI Nonlocal artificial boundary conditions for computation of external viscous flows SO COMPUTATIONAL FLUID DYNAMICS '96 LA English DT Proceedings Paper CT 3rd ECCOMAS Computational Fluid Dynamics Conference CY SEP 09-13, 1996 CL PARIS, FRANCE SP European Community Computat Methods Appl Sci, European Community, CIRA, CNRS, Dassault Aviat & Ind, DRET, GIFAS, IBM, INRIA, MAE 4 AB We propose an effective methodology to set far-field artificial boundary conditions (ABC's) for calculation of external viscous lows. The methodology applies to a wide variety of formulations, in which the original infinite flow domain is truncated for the purpose of solving the problem numerically. The necessity to set artificial boundary conditions is obvious. They merely replace tile actual solution in the far field and therefore close the truncated problem, which is solved inside the finite computational domain. Our technique for constructing the ABC's is based on the usage of Calderon's boundary pseudodifferential operators and or application of the difference potentials method (DPM) by V. S. Ryaben'kii, The resulting boundary conditions are nonlocal; however, they are inexpensive and universal from the geometric standpoint. Moreover, as shown by the numerous two-dimensional numerical experiments these: ABC's clearly outperform standard existing methods from the standpoints of accuracy, convergence rate, and robustness. In this payer, we primarily focus on describing the basic ideas of the DPM-based algorithm for three-dimensional steady-state flows over the wing-shaped configurations. RP Tsynkov, SV (reprint author), NASA,LANGLEY RES CTR,MAIL STOP 128,18E W TAYLOR ST,HAMPTON,VA 23681, USA. NR 0 TC 4 Z9 4 U1 1 U2 1 PU JOHN WILEY & SONS LTD PI CHICHESTER PA BAFFINS LANE, CHICHESTER, WEST SUSSEX, ENGLAND PO19 1UD BN 0-471-95851-4 PY 1996 BP 512 EP 518 PG 7 WC Engineering, Chemical; Mathematics, Applied SC Engineering; Mathematics GA BJ01B UT WOS:A1996BJ01B00078 ER PT B AU Chang, SC Loh, CY AF Chang, SC Loh, CY BE Desideri, JA Hirsch, C LeTallec, P Pandolfi, M Periaux, J TI A new conservation scheme for aeroacoustics SO COMPUTATIONAL FLUID DYNAMICS '96 LA English DT Proceedings Paper CT 3rd ECCOMAS Computational Fluid Dynamics Conference CY SEP 09-13, 1996 CL PARIS, FRANCE SP European Community Computat Methods Appl Sci, European Community, CIRA, CNRS, Dassault Aviat & Ind, DRET, GIFAS, IBM, INRIA, MAE 4 AB The method of space-time conservation element, solution dement (STCS) for 2-D Euler equations is briefly introduced, The scheme possesses very low dispersion error and handles both continuous arid discontinuous waves. In addition, the non-reflecting boundary condition is strikingly simple. It is then tested in several benchmark computational aeroacoustics (CAA) problems from weak linear acoustic waves to strongly non-linear or even discontinuous waves to demonstrate its robustness. RP Chang, SC (reprint author), NASA,LEWIS RES CTR,MS 5-11,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI CHICHESTER PA BAFFINS LANE, CHICHESTER, WEST SUSSEX, ENGLAND PO19 1UD BN 0-471-95851-4 PY 1996 BP 766 EP 772 PG 7 WC Engineering, Chemical; Mathematics, Applied SC Engineering; Mathematics GA BJ01B UT WOS:A1996BJ01B00116 ER PT B AU Chang, SC Wang, XY Chow, CY AF Chang, SC Wang, XY Chow, CY BE Desideri, JA Hirsch, C LeTallec, P Pandolfi, M Periaux, J TI Numerical simulation of supersonic internal flows based on the space-time CE/SE method SO COMPUTATIONAL FLUID DYNAMICS '96 LA English DT Proceedings Paper CT 3rd ECCOMAS Computational Fluid Dynamics Conference CY SEP 09-13, 1996 CL PARIS, FRANCE SP European Community Computat Methods Appl Sci, European Community, CIRA, CNRS, Dassault Aviat & Ind, DRET, GIFAS, IBM, INRIA, MAE 4 AB Two supersonic channel flows are simulated using a 2-D Euler solver based on the method of space-time conservation element and solution element. These flowfields involve complex flow phenomena including shock waves and their regular and irregular reflections, and their interactions with contact surface and expansion waves. Numerical results so obtained are compared with exact solutions and/or numerical solutions obtained by schemes based on other well-established traditional numerical methods. Comparisons show that the present Euler solver can generate highly accurate numerical solutions to complex flow problems in a straightforward manner without using any ad hoc techniques in the scheme. RP Chang, SC (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS LTD PI CHICHESTER PA BAFFINS LANE, CHICHESTER, WEST SUSSEX, ENGLAND PO19 1UD BN 0-471-95851-4 PY 1996 BP 904 EP 909 PG 6 WC Engineering, Chemical; Mathematics, Applied SC Engineering; Mathematics GA BJ01B UT WOS:A1996BJ01B00138 ER PT B AU Richards, WL Monaghan, RC AF Richards, WL Monaghan, RC BE Duggan, TV TI Analytical and experimental verification of a flight article for a Mach-8 boundary-layer experiment SO COMPUTATIONAL METHODS AND TESTING FOR ENGINEERING INTEGRITY LA English DT Proceedings Paper CT 1st International Conference on Computational Methods and Testing for Engineering Integrity CY MAR 19-21, 1996 CL KUALA LUMPUR, MALAYSIA SP Wessex Inst Technol, Dartec Ltd C1 NASA,DRYDEN FLIGHT RES CTR,EDWARDS AFB,CA 93523. NR 0 TC 0 Z9 0 U1 0 U2 0 PU COMPUTATIONAL MECHANICS PUBLICATIONS LTD PI SOUTHAMPTON PA ASHURST LODGE, SOUTHAMPTON, HANTS, ENGLAND S04 2AA BN 1-85312-412-5 PY 1996 BP 115 EP 130 PG 16 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BF35S UT WOS:A1996BF35S00012 ER PT J AU Turner, R Gobbetti, E Soboroff, I AF Turner, R Gobbetti, E Soboroff, I TI Head-tracked stereo viewing with two-handed 3D interaction for animated character construction SO COMPUTER GRAPHICS FORUM LA English DT Article; Proceedings Paper CT 17th Annual Conference of the European-Association-for-Computer-Graphics (EUROGRAPHICS 96) CY AUG 26-30, 1996 CL POITIERS, FRANCE SP European Assoc Comp Graph DE interactive 3D graphics; stereoscopic display; head-tracking; two hand input; virtual tools; 3D character modeling; animation systems AB In this paper, we demonstrate how a new interactive 3D desktop metaphor based on two-handed 3D direct manipulation registered with head-tracked stereo viewing can be applied to the task of constructing animated characters. In our configuration, a six degree-of-freedom head-tracker and CrystalEyes shutter glasses are used to produce stereo images that dynamically follow the user head motion. 3D virtual objects can be made to appear at a fixed location in physical space which the user may view from different angles by moving his head. To construct 3D animated characters, the user interacts with the simulated environment using both hands simultaneously: the left hand, controlling a Spaceball, is used for 3D navigation and object movement, while the right hand, holding a 3D mouse, is used to manipulate through a virtual tool metaphor the objects appearing in front of the screen. in this way, both incremental and absolute interactive input techniques are provided by the system. Hand-eye coordination is made possible by registering virtual space exactly to physical space, allowing a variety of complex 3D tasks necessary for constructing 3D animated characters to be performed more easily and more rapidly than is possible using traditional interactive techniques. The system has been tested using both Polhemus Fastrak and Logitech ultrasonic input devices for tracking the head and 3D mouse. C1 NASA,GODDARD SPACE FLIGHT CTR,CESDIS,GREENBELT,MD 20771. RP Turner, R (reprint author), UNIV MARYLAND BALTIMORE CTY,CSEE DEPT,BALTIMORE,MD 21228, USA. NR 33 TC 0 Z9 0 U1 0 U2 0 PU BLACKWELL PUBL LTD PI OXFORD PA 108 COWLEY RD, OXFORD, OXON, ENGLAND OX4 1JF SN 0167-7055 J9 COMPUT GRAPH FORUM JI Comput. Graph. Forum PY 1996 VL 15 IS 3 SI CI BP C197 EP & PG 11 WC Computer Science, Software Engineering SC Computer Science GA VG164 UT WOS:A1996VG16400021 ER PT J AU Watson, V AF Watson, V TI 3D, interactive scientific expeditions on the World Wide Web and remote, collaborative visualization over the Internet SO COMPUTER GRAPHICS FORUM LA English DT Article; Proceedings Paper CT 17th Annual Conference of the European-Association-for-Computer-Graphics (EUROGRAPHICS 96) CY AUG 26-30, 1996 CL POITIERS, FRANCE SP European Assoc Comp Graph RP Watson, V (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU BLACKWELL PUBL LTD PI OXFORD PA 108 COWLEY RD, OXFORD, OXON, ENGLAND OX4 1JF SN 0167-7055 J9 COMPUT GRAPH FORUM JI Comput. Graph. Forum PY 1996 VL 15 IS 3 SI CI BP C325 EP C325 PG 1 WC Computer Science, Software Engineering SC Computer Science GA VG164 UT WOS:A1996VG16400033 ER PT J AU Gendy, AS Patnaik, SN Hopkins, DA Berke, L AF Gendy, AS Patnaik, SN Hopkins, DA Berke, L TI Optimization of Space Station components using design code CometBoards SO COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING LA English DT Article AB Weight minimization is an important requirement in the design of components of the Space Station, since it can directly save launch cost, reduce the number of space shuttle missions, and facilitate on orbit assembly and fabrication. Preliminary optimum designs for such flight components are obtained using a design tool, termed 'CometBoards' and utilizing an animation feature of PATRAN software. Salient features of CometBoards include multiple non-linear programming optimizers; industrial strength analyzers; component synthesis concepts through a design variable formulation; constraint grouping scheme; and substructuring optimization technique, etc. The optimum design capability of CometBoards is illustrated using two flight components: (a) a 'spacer structure' of the solar power module of the Space Station, and (b) a 'support system' for integration in the space shuttle cargo bay. Optimum designs for both components have been obtained for multiple pseudo-static flight loads for behavior constraints confirming to specifications of the Space Station. The design optimization process generated lighter structures, with a reduction in the weights of about one third those obtained by the traditional manual design. Brief organization of CometBoards, description of the Space Station components, their design environments, behavior limitations, dynamic animation via PATRAN, along with the optimum designs are presented in this paper. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. OHIO AEOROSP INST,CLEVELAND,OH 44142. NR 23 TC 5 Z9 5 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 JAN 1 PY 1996 VL 129 IS 1-2 BP 133 EP 149 DI 10.1016/0045-7825(95)00856-X PG 17 WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary Applications; Mechanics SC Engineering; Mathematics; Mechanics GA TZ166 UT WOS:A1996TZ16600010 ER PT J AU Black, MJ Anandan, P AF Black, MJ Anandan, P TI The robust estimation of multiple motions: Parametric and piecewise-smooth flow fields SO COMPUTER VISION AND IMAGE UNDERSTANDING LA English DT Article ID OPTICAL-FLOW; IMAGE FLOW; COMPUTATIONAL VISION; MOVING-OBJECTS; VISUAL-MOTION; OPTIMIZATION; SEGMENTATION; ALGORITHM; VELOCITY; MODEL AB Most approaches for estimating optical flow assume that, within a finite image region, only a single motion is present. This single motion assumption is violated in common situations involving transparency, depth discontinuities, independently moving objects, shadows, and specular reflections. To robustly estimate optical flow, the single motion assumption must be relaxed. This paper presents a framework based on robust estimation that addresses violations of the brightness constancy and spatial smoothness assumptions caused by multiple motions. We show how the robust estimation framework can be applied to standard formulations of the optical flow problem thus reducing their sensitivity to violations of their underlying assumptions, The approach has been applied to three standard techniques for recovering optical flow: area-based regression, correlation, and regularization with motion discontinuities. This paper focuses on the recovery of multiple parametric motion models within a region, as well as the recovery of piecewise-smooth flow fields, and provides examples with natural and synthetic image sequences. (C) 1996 Academic Press, Inc. C1 DAVID SARNOFF RES CTR, PRINCETON, NJ 08543 USA. YALE UNIV, NEW HAVEN, CT 06520 USA. NASA, AMES RES CTR, AEROSP HUMAN FACTORS RES DIV, AMES, IA USA. UNIV TORONTO, TORONTO, ON, CANADA. RP XEROX CORP, PALO ALTO RES CTR, PALO ALTO, CA 94304 USA. NR 59 TC 818 Z9 839 U1 1 U2 32 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 1077-3142 EI 1090-235X J9 COMPUT VIS IMAGE UND JI Comput. Vis. Image Underst. PD JAN PY 1996 VL 63 IS 1 BP 75 EP 104 DI 10.1006/cviu.1996.0006 PG 30 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA TY734 UT WOS:A1996TY73400006 ER PT B AU Collier, E Fischer, M AF Collier, E Fischer, M BE Vanegas, J Chinowsky, P TI Visual-based scheduling: 4D modeling on the San Mateo County Health Center SO COMPUTING IN CIVIL ENGINEERING LA English DT Proceedings Paper CT 3rd Congress on Computing in Civil Engineering (III-CCCE) CY JUN 17-19, 1996 CL ANAHEIM, CA SP ASCE, Tech Council Comp Practices C1 NASA,AMES RES CTR,DMJM,MOFFETT FED AIRFIELD,CA. NR 0 TC 6 Z9 7 U1 1 U2 1 PU AMER SOC CIVIL ENGINEERS PI NEW YORK PA UNITED ENGINEERING CENTER, 345 E 47TH ST, NEW YORK, NY 10017-2398 BN 0-7844-0182-9 PY 1996 BP 800 EP 805 PG 6 WC Computer Science, Interdisciplinary Applications; Engineering, Civil SC Computer Science; Engineering GA BG42N UT WOS:A1996BG42N00117 ER PT B AU Huang, NE Long, SR Lin, RQ AF Huang, NE Long, SR Lin, RQ GP AMER METEOROL SOC TI Development of the directional spectrum of coastal wind waves under offshore wind SO CONFERENCE ON COASTAL OCEANIC AND ATMOSPHERIC PREDICTION LA English DT Proceedings Paper CT Conference on Coastal Oceanic and Atmospheric Prediction CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Long, Steven/D-7248-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 91 EP 92 PG 2 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF41L UT WOS:A1996BF41L00016 ER PT J AU Lin, RQ Huang, NE AF Lin, RQ Huang, NE GP AMER METEOROL SOC TI The Goddard Coastal Wave Model numerics and kinematics SO CONFERENCE ON COASTAL OCEANIC AND ATMOSPHERIC PREDICTION LA English DT Proceedings Paper CT Conference on Coastal Oceanic and Atmospheric Prediction CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 93 EP 94 PG 2 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF41L UT WOS:A1996BF41L00017 ER PT J AU Lin, RQ Huang, NE Perrie, W AF Lin, RQ Huang, NE Perrie, W GP AMER METEOROL SOC TI The Goddard coastal wave model nonlinear source function SO CONFERENCE ON COASTAL OCEANIC AND ATMOSPHERIC PREDICTION LA English DT Proceedings Paper CT Conference on Coastal Oceanic and Atmospheric Prediction CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 147 EP 149 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF41L UT WOS:A1996BF41L00028 ER PT B AU Wilson, LF AF Wilson, LF GP IEEE TI Analysis of algorithmic structures with heterogeneous tasks SO CONFERENCE PROCEEDINGS OF THE 1996 IEEE FIFTEENTH ANNUAL INTERNATIONAL PHOENIX CONFERENCE ON COMPUTERS AND COMMUNICATIONS LA English DT Proceedings Paper CT IEEE 15th Annual International Phoenix Conference on Computers and Communications CY MAR 27-29, 1996 CL SCOTTSDALE, AZ SP IEEE, IEEE Commun Soc, IEEE Comp Soc C1 NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3255-5 PY 1996 BP 253 EP 261 DI 10.1109/PCCC.1996.493642 PG 9 WC Computer Science, Hardware & Architecture; Computer Science, Information Systems SC Computer Science GA BF45Z UT WOS:A1996BF45Z00038 ER PT B AU Wilson, LF Gonzalez, MJ AF Wilson, LF Gonzalez, MJ GP IEEE TI Structural analysis and implementation of two distributed algorithms SO CONFERENCE PROCEEDINGS OF THE 1996 IEEE FIFTEENTH ANNUAL INTERNATIONAL PHOENIX CONFERENCE ON COMPUTERS AND COMMUNICATIONS LA English DT Proceedings Paper CT IEEE 15th Annual International Phoenix Conference on Computers and Communications CY MAR 27-29, 1996 CL SCOTTSDALE, AZ SP IEEE, IEEE Commun Soc, IEEE Comp Soc C1 NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3255-5 PY 1996 BP 268 EP 274 DI 10.1109/PCCC.1996.493644 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Information Systems SC Computer Science GA BF45Z UT WOS:A1996BF45Z00040 ER PT B AU Stueber, TJ Hammoud, A McCall, D AF Stueber, TJ Hammoud, A McCall, D GP IEEE TI Comparison of aro tracking tests in various aerospace environments SO CONFERENCE RECORD OF THE 1996 IEEE INTERNATIONAL SYMPOSIUM ON ELECTRICAL INSULATION, VOLS 1 AND 2 LA English DT Proceedings Paper CT 1996 IEEE International Symposium on Electrical Insulation CY JUN 16-19, 1996 CL MONTREAL, CANADA SP IEEE, Dielect & Elect Insulat Soc C1 NYMA INC,NASA,LEWIS RES CTR,BROOKPARK,OH 44142. NR 0 TC 2 Z9 2 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3532-5 PY 1996 BP 349 EP 352 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG04Y UT WOS:A1996BG04Y00082 ER PT B AU Silva, A AF Silva, A GP IEEE TI Spectral analysis and performance of a 20KW CW uplink transmitter SO CONFERENCE RECORD OF THE 1996 TWENTY-SECOND INTERNATIONAL POWER MODULATOR SYMPOSIUM LA English DT Proceedings Paper CT 22nd International Power Modulator Symposium CY JUN 25-27, 1996 CL BOCA RATON, FL SP USA Res Lab, USA Res Off, Air Force Wright Lab, Sandia Natl Labs, Naval Surface Warfare Ctr, Adv Grp Electron Devices, IEEE Electron Devices Soc AB In the 1994 Power Modulator Symposium, a treatment was given on the power supply performance of a 20KW CW uplink transmitter for NASA's Deep Space Network (DSN). This paper examines and reports on the phase noise and other spectral characteristics of the high-power RF uplink signal. Allan variance performance figures are presented and discussed and overall RF performance is examined against the existing requirements in terms of phase noise, Allan variance and stability. Also noted are the effects of AC versus DC filament modulation of the high power uplink Klystron amplifier. Tests have shown that DC cathode filament heating can eliminate the dominant 60 Hertz spurs that are evident in almost all phase noise tests, Practical implementations of phase noise tests ate provided to document and facilitate future analysis. RP Silva, A (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3077-3 PY 1996 BP 104 EP 107 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG88Z UT WOS:A1996BG88Z00026 ER PT B AU Wilt, DM Fatemi, NS Jenkins, PP Hoffmann, RW Landis, GA Jain, RK AF Wilt, DM Fatemi, NS Jenkins, PP Hoffmann, RW Landis, GA Jain, RK GP IEEE TI Monolithically interconnected ingaas TPV module development SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 43 EP 48 DI 10.1109/PVSC.1996.563942 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00008 ER PT B AU Yater, JA Landis, GA Bailey, SG Olsen, LC Addis, FW AF Yater, JA Landis, GA Bailey, SG Olsen, LC Addis, FW GP IEEE TI ZnSe window layers for GaAs solar cells SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 65 EP 68 DI 10.1109/PVSC.1996.563947 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00013 ER PT B AU Rybicki, G AF Rybicki, G GP IEEE TI Silicon carbide alphavoltaic battery SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,LEWIS RES CTR,PHOTOVOLTA BRANCH,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 4 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 93 EP 96 DI 10.1109/PVSC.1996.563955 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00020 ER PT B AU Curtis, H Marvin, D AF Curtis, H Marvin, D GP IEEE TI Final results from the PASP Plus flight experiment SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 3 Z9 3 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 195 EP 198 DI 10.1109/PVSC.1996.563980 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00045 ER PT B AU Burger, DR Mueller, RL AF Burger, DR Mueller, RL GP IEEE TI Angle of incidence corrections for GaAs/Ge solar cells with low absorptance coverglass SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 3 Z9 3 U1 0 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 243 EP 246 DI 10.1109/PVSC.1996.563992 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00057 ER PT B AU Stella, PM Ross, RG Smith, BS Glenn, GS Sharmit, KS AF Stella, PM Ross, RG Smith, BS Glenn, GS Sharmit, KS GP IEEE TI Mars global surveyor [MGS] high temperature survival solar array SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 CALTECH,JET PROP LAB,PASADENA,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 283 EP 288 DI 10.1109/PVSC.1996.564001 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00066 ER PT B AU Gaddy, EM AF Gaddy, EM GP IEEE TI Cost performance of multi-junction, gallium arsenide, and silicon solar cells on spacecraft SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 293 EP 296 DI 10.1109/PVSC.1996.564003 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00068 ER PT B AU Spitzer, T AF Spitzer, T GP IEEE TI The GGS spacecraft, solar arrays for space physics SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,GODDARD SPACE FLIGHT CTR,SPACE POWER APPLICAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 305 EP 308 DI 10.1109/PVSC.1996.564006 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00071 ER PT B AU Mueller, RL Burger, DR AF Mueller, RL Burger, DR GP IEEE TI Solar array passive functional tests SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 313 EP 316 DI 10.1109/PVSC.1996.564008 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00073 ER PT B AU Acuna, MH Scheifele, JL Stella, P Kloss, C Smith, B Heinsohn, G Sharmit, K AF Acuna, MH Scheifele, JL Stella, P Kloss, C Smith, B Heinsohn, G Sharmit, K GP IEEE TI Magnetic field cancellation techniques for the Mars Global Surveyor solar array SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 325 EP 328 DI 10.1109/PVSC.1996.564011 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00076 ER PT B AU Landis, GA AF Landis, GA GP IEEE TI Reflectance-reducing covers for solar cells SO CONFERENCE RECORD OF THE TWENTY FIFTH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE - 1996 LA English DT Proceedings Paper CT 25th IEEE Photovoltaic Specialists Conference CY MAY 13-17, 1996 CL WASHINGTON, DC SP IEEE, IEEE, Electron Device Soc C1 NASA,LEWIS RES CTR 3021,OHIO AEROSP INST,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3167-2 PY 1996 BP 1335 EP 1338 DI 10.1109/PVSC.1996.564380 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG63B UT WOS:A1996BG63B00321 ER PT B AU Olsen, ET Backus, C Gulkis, S Levin, SM AF Olsen, ET Backus, C Gulkis, S Levin, SM BE Dasheiff, RM Vincent, DJ TI HRMS Sky Survey techniques: Separating the rare interesting signal from the multitude of background signals SO CONTINUOUS WAVE-FORM ANALYSIS SE ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY SUPPLEMENT LA English DT Proceedings Paper CT Symposium on Frontier Science in EEG - Continuous Waveform Analysis CY OCT 09, 1993 CL NEW ORLEANS, LA SP Parke Davis RP Olsen, ET (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 0-444-82429-4 J9 EEG CL N SU PY 1996 IS 45 BP 135 EP 136 PG 2 WC Clinical Neurology SC Neurosciences & Neurology GA BH44W UT WOS:A1996BH44W00010 ER PT B AU Copi, CJ Schramm, DN Turner, MS AF Copi, CJ Schramm, DN Turner, MS BE Holt, SS Sonneborn, G TI Assessing big-bang nucleosynthesis SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 UNIV CHICAGO,DEPT PHYS,NASA,FERMILAB ASTROPHYS CTR,CHICAGO,IL 60637. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 59 EP 62 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00004 ER PT B AU Copi, CJ Schramm, DN Turner, MS AF Copi, CJ Schramm, DN Turner, MS BE Holt, SS Sonneborn, G TI Big-bang nucleosynthesis and a new approach to galactic chemical evolution SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 UNIV CHICAGO,DEPT PHYS,NASA,FERMILAB ASTROPHYS CTR,CHICAGO,IL 60637. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 63 EP 66 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00005 ER PT B AU Landsman, WB Crotts, APS Hubeny, I Lanz, T OConnell, RW Whitney, J Stecher, TP AF Landsman, WB Crotts, APS Hubeny, I Lanz, T OConnell, RW Whitney, J Stecher, TP BE Holt, SS Sonneborn, G TI Spectroscopic constraints on the helium abundance in globular cluster stars SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,HUGHES STX,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 199 EP 202 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00024 ER PT B AU Drake, SA AF Drake, SA BE Holt, SS Sonneborn, G TI X-ray measurements of coronal abundances SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771. NR 0 TC 21 Z9 21 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 215 EP 226 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00028 ER PT B AU Singh, KP Drake, SA White, NE AF Singh, KP Drake, SA White, NE BE Holt, SS Sonneborn, G TI ASCA measurements of coronal elemental abundances in an active K0 dwarf star SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI White, Nicholas/B-6428-2012 OI White, Nicholas/0000-0003-3853-3462 NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 227 EP 230 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00029 ER PT B AU Petre, R AF Petre, R BE Holt, SS Sonneborn, G TI X-ray observations of supernova remnants (and what they tell us about nucleosynthesis) SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 284 EP 293 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00035 ER PT B AU Waller, WH Parker, JW Malumuth, EM AF Waller, WH Parker, JW Malumuth, EM BE Holt, SS Sonneborn, G TI Abundances and stellar populations in giant HII regions SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. NR 0 TC 3 Z9 3 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 354 EP 357 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00043 ER PT B AU Ramaty, R AF Ramaty, R BE Holt, SS Sonneborn, G TI Abundance determinations from gamma ray spectroscopy SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 377 EP 380 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00047 ER PT B AU Loewenstein, M AF Loewenstein, M BE Holt, SS Sonneborn, G TI Abundances in elliptical galaxy hot interstellar media SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY PHYS LAB,GREENBELT,MD 20771. NR 0 TC 3 Z9 3 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 393 EP 396 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00051 ER PT B AU Arnaud, KA AF Arnaud, KA BE Holt, SS Sonneborn, G TI Abundances in the intra-cluster medium SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 5 Z9 5 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 409 EP 418 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00054 ER PT B AU Ramaty, R AF Ramaty, R BE Holt, SS Sonneborn, G TI From solar flares to the big bang: Rapporteur paper on the Cosmic Abundances Conference SO COSMIC ABUNDANCES SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 6th Annual October Astrophysics Conference on Cosmic Abundances CY OCT 09-11, 1995 CL COLLEGE PK, MD SP Goddard Space Flight Ctr, Univ Maryland C1 GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-20-1 J9 ASTR SOC P PY 1996 VL 99 BP 419 EP 424 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32J UT WOS:A1996BG32J00055 ER PT S AU Pendleton, Y AF Pendleton, Y BE Greenberg, JM TI Organic material in the interstellar medium SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE AB Spectra of objects which lie along several lines of sight through the diffuse interstellar medium (ISM) all contain an absorption feature near 3.4 mu m (2950 cm(-1)) which has been attributed to saturated aliphatic hydrocarbons on interstellar grains. The similarity of the absorption bands near 3.4 mu m along different lines of sight reveals that the carrier of this band lies in the diffuse dust. A remarkable similarity between the spectrum of the diffuse dust and an organic extract from the Murchison meteorite suggests that some of the interstellar organic material may be preserved in primitive solar system bodies. The recent discovery of the 3.4 mu m absorption feature in other galaxies has led to comparisons between the extragalactic, galactic, and solar system organics. The comparisons show strong similarities in position peaks and profile structure between the three spectra. However, the absence, in our own galaxy, of the aliphatic hydrocarbon signature in the spectra of dense cloud objects is puzzling in the light of the widespread distribution of the aliphatic material throughout the diffuse medium and the short time scales thought to govern the transition of that material back into dense molecular clouds. The connection between the diffuse ISM dust and solar system objects is made more difficult to understand if the aliphatics are truly absent in the dense cloud phase where proto-solar nebulae must form. In an effort to further investigate the 3.4 mu m absorption feature in the diffuse ISM, comparisons of the diffuse medium dust to several materials which have been proposed as ''fits'' to the 3.4 mu m feature are presented. The optical depth/extinction tau/A(V) ratio for the 3.4 mu m (2950 cm(-1)) band is higher toward the galactic center than toward sources which sample the interstellar medium in the local neighborhood. A similar trend has been observed previously for silicates, indicating that the two materials may be simultaneously enhanced in the galactic center. Such a trend is consistent with the presence of grains composed of silicate cores and organic refractory mantles. RP Pendleton, Y (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MS 245-3,MOFFETT FIELD,CA 94035, USA. NR 0 TC 6 Z9 6 U1 1 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 71 EP 80 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00003 ER PT S AU Allamandola, LJ AF Allamandola, LJ BE Greenberg, JM TI PAHs, they're everywhere! SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE AB A brief history of the observations and experiments which have led to the hypothesis that polycyclic aromatic hydrocarbons (PAHs) are widespread throughout the interstellar medium is presented. The PAH signature spectrum is associated with dense molecular clouds (reflection nebulae, HII regions), protoplanetary and planetary nebulae, M supergiants, and a nova. Since it is difficult to imagine a plausible mechanism to exclude PAHs from being distributed throughout the diffuse interstellar medium, it is concluded that they must be there as well, implying that they are among the carriers of the Diffuse Interstellar Bands (DIBs). The spectral evidence in support of this is reviewed. This is followed by a very short survey of studies on Solar System objects and extraterrestrial materials (including comet Halley, meteorites and interplanetary dust particles) which have been recently shown to contain PAHs. RP Allamandola, LJ (reprint author), NASA,AMES RES CTR,MS 245-6,MOFFETT FIELD,CA 94035, USA. NR 0 TC 10 Z9 10 U1 0 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 81 EP 102 PG 22 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00004 ER PT S AU Salama, F AF Salama, F BE Greenberg, JM TI Neutral and ionized PAH spectral properties - Implications for the ultraviolet-visible interstellar extinction SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE AB An assessment of the PAH model and its predictions for the interstellar extinction is made based on the detailed study of the ultraviolet-to-near infrared absorption spectroscopy of neutral and ionized PAHs. Matrix isolation spectroscopy data are combined with the modeling of the general spectroscopic properties of PAHs and compared with the astronomical observations. It is concluded that: (i) Small neutral PAHs (less than or equal to 25 carbon atoms) absorb only in the UV and cannot contribute to the known diffuse interstellar bands (DIBs) although they may contribute to the UV extinction curve. A search for their spectral signatures should provide a test to the PAH model and should allow to set significant limits for the abundances of specific PAHs. (ii) Small ionized PAHs (less than or equal to 25 carbon atoms) absorb in the visible and NIR close to the position of well-known DIBs. It is argued that ionized PAHs constitute good candidates to explain the DIBs and predictions for new DIBs to be searched for are made. RP Salama, F (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MS 245-3,MOFFETT FIELD,CA 94035, USA. RI Salama, Farid/A-8787-2009 OI Salama, Farid/0000-0002-6064-4401 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 103 EP 115 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00005 ER PT S AU Nuth, JA AF Nuth, JA BE Greenberg, JM TI Grain formation and metamorphism SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE AB A brief review of theoretical treatments of grain formation in astrophysical environments is followed by a review of lessons learned from laboratory studies of similar processes: current theory requires considerable development. A model for the formation and spectral/chemical/physical evolution of grains in oxygen-rich circumstellar environments is then presented based on considerations of the chemical processes expected during condensation and the results of laboratory experiments. RP Nuth, JA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTROCHEM BRANCH,CODE 691,GREENBELT,MD 20771, USA. RI Nuth, Joseph/E-7085-2012 NR 0 TC 26 Z9 26 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 205 EP 221 PG 17 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00012 ER PT S AU Fomenkova, M Chang, S AF Fomenkova, M Chang, S BE Greenberg, JM TI The link between cometary and interstellar dust SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE RP Fomenkova, M (reprint author), NASA,AMES RES CTR,MS 239-4,MOFFETT FIELD,CA 94035, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 459 EP 465 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00033 ER PT S AU Cruikshank, DP AF Cruikshank, DP BE Greenberg, JM TI Organic solids in the outer solar system: Kuiper belt planetesimals SO COSMIC DUST CONNECTION SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Study Institute / 3rd Course of the International School of Space Chemistry - Cosmic Dust Connection CY JUN 06-17, 1994 CL ETTORE MAJORANA CTR SCI CULTURE, ERICE, ITALY SP NATO, US Natl Sci Fdn, NASA, Int Sci Fdn, Ettore Majorana Ctr Sci Culture HO ETTORE MAJORANA CTR SCI CULTURE RP Cruikshank, DP (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-4365-4 J9 NATO ADV SCI I C-MAT PY 1996 VL 487 BP 467 EP 475 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH15S UT WOS:A1996BH15S00034 ER PT J AU Keating, GM AF Keating, GM TI Cospar International Reference Atmosphere (CIRA) .3. Trace constituent reference models - Preface SO COSPAR INTERNATIONAL REFERENCE ATMOSPHERE (CIRA), PT III SE ADVANCES IN SPACE RESEARCH LA English DT Article RP Keating, GM (reprint author), GEORGE WASHINGTON UNIV,NASA,LANGLEY RES CTR,MAIL STOP 269,HAMPTON,VA 23681, USA. NR 10 TC 0 Z9 0 U1 1 U2 3 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 J9 ADV SPACE RES PY 1996 VL 18 IS 9/10 BP 1 EP 7 DI 10.1016/S0273-1177(96)90832-7 PG 7 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BF77W UT WOS:A1996BF77W00001 ER PT J AU Keating, GM Chiou, LS Hsu, NC AF Keating, GM Chiou, LS Hsu, NC TI Improved ozone reference models for the COSPAR International Reference Atmosphere SO COSPAR INTERNATIONAL REFERENCE ATMOSPHERE (CIRA), PT III SE ADVANCES IN SPACE RESEARCH LA English DT Review ID SOLAR MESOSPHERE EXPLORER; NEAR-INFRARED SPECTROMETER; GROUND-BASED OBSERVATIONS; STRATOSPHERIC OZONE; MIDDLE ATMOSPHERE; NIMBUS-7 SBUV; BUV DATA; BACKSCATTER ULTRAVIOLET; INTERANNUAL VARIATIONS; VERTICAL-DISTRIBUTION C1 SCI APPLICAT INT CORP,HAMPTON,VA 23666. HUGHES INFORMAT TECHNOL CORP,GREENBELT,MD 20771. RP Keating, GM (reprint author), GEORGE WASHINGTON UNIV,NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. RI Hsu, N. Christina/H-3420-2013 NR 155 TC 29 Z9 29 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 J9 ADV SPACE RES PY 1996 VL 18 IS 9/10 BP 11 EP 58 DI 10.1016/0273-1177(96)00050-6 PG 48 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BF77W UT WOS:A1996BF77W00002 ER PT J AU Chiou, EW Remsberg, EE Rodgers, CD Munro, R Bevilacqua, RM McCormick, MP Russell, JM AF Chiou, EW Remsberg, EE Rodgers, CD Munro, R Bevilacqua, RM McCormick, MP Russell, JM TI Proposed reference model for middle atmosphere water vapor SO COSPAR INTERNATIONAL REFERENCE ATMOSPHERE (CIRA), PT III SE ADVANCES IN SPACE RESEARCH LA English DT Article ID STRATOSPHERE; NIMBUS-7; H2O AB Several new and significant satellite data sets on middle atmosphere water vapor have been produced recently, They include data from the Stratospheric Aerosol and Gas Experiment II (SAGE II) and the Nimbus-7 Stratospheric and Mesospheric Sounder (SAMS) experiment. The SAGE II data provide an estimate of interannual variability of water vapor in the stratosphere, The SAMS data are appropriate for the upper stratosphere and lower mesosphere. We combine these two data sets with those from the Nimbus-7 Limb Infrared Monitor of the Stratosphere (LIMS) experiment to update the COSPAR interim reference model for water vapor. Water vapor profiles from the Spacelab 3 Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment, ground-based microwave, and in situ balloon and aircraft measurements have been used to check the quality of the satellite data sets, The updated reference model is given as a function of latitude and pressure altitude and now covers all four seasons, Tabulations are included for these seasonal water vapor mixing ratios (in ppmv) and their estimated errors (in percent). C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. DEPT ATMOSPHER OCEAN & PLANETARY PHYS,OXFORD,ENGLAND. USN,RES LAB,WASHINGTON,DC. RP Chiou, EW (reprint author), SCI APPLICAT INT CORP,HAMPTON,VA, USA. NR 29 TC 4 Z9 4 U1 0 U2 2 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 J9 ADV SPACE RES PY 1996 VL 18 IS 9/10 BP 59 EP 89 DI 10.1016/0273-1177(96)00051-8 PG 31 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BF77W UT WOS:A1996BF77W00003 ER PT J AU Naudet, JP Thomas, RJ Roscoe, HK Russell, JM AF Naudet, JP Thomas, RJ Roscoe, HK Russell, JM TI About a possible reference model for stratospheric NO2 SO COSPAR INTERNATIONAL REFERENCE ATMOSPHERE (CIRA), PT III SE ADVANCES IN SPACE RESEARCH LA English DT Article ID NITROGEN-DIOXIDE AB After a brief review of observations of the global distribution of stratospheric NO2, we will discuss the possibilities of combining different data sets to construct a NO2 reference model. It is shown that difficulties mainly arise form the diversity of techniques and variability of NO2 in the stratosphere. The diurnal variation and possibly a long term trend present special problems. C1 UNIV COLORADO,ATMOSPHER & SPACE PHYS LAB,BOULDER,CO 80306. CLARENDON LAB,DEPT ATMOSPHER PHYS,OXFORD OX1 3PU,ENGLAND. NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665. RP Naudet, JP (reprint author), CNRS,LAB PHYS & CHIM ENVIRONNEMENT,F-45071 ORLEANS,FRANCE. NR 12 TC 0 Z9 0 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 J9 ADV SPACE RES PY 1996 VL 18 IS 9/10 BP 139 EP 143 DI 10.1016/0273-1177(96)00055-5 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BF77W UT WOS:A1996BF77W00006 ER PT J AU McCormick, MP Wang, PH Pitts, MC AF McCormick, MP Wang, PH Pitts, MC TI Background stratospheric aerosol and polar stratospheric cloud reference models SO COSPAR INTERNATIONAL REFERENCE ATMOSPHERE (CIRA), PT III SE ADVANCES IN SPACE RESEARCH LA English DT Article ID SAM-II; CORRELATIVE MEASUREMENTS; ANTARCTIC OZONE; SATELLITE; LIDAR; SAGE AB A global aerosol climatology is evolving from the NASA satellite experiments SAM II, SAGE I, and SAGE II. In addition, polar stratospheric cloud (PSC) data have been obtained from these experiments over the last decade. This paper will describe an updated reference model of the optical characteristics of the background aerosol and propose a new aerosol reference model derived from the latest available data. The aerosol models are referenced to the height above the tropopause. The impact of a number of volcanic eruptions will be described. In addition, a model describing the seasonal, longitudinal, and interannual variations in PSCs will be presented. C1 SCI & TECHNOL CORP,HAMPTON,VA 23666. ST SYST CORP,HAMPTON,VA 23666. RP McCormick, MP (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23665, USA. NR 19 TC 7 Z9 9 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 J9 ADV SPACE RES PY 1996 VL 18 IS 9/10 BP 155 EP 177 DI 10.1016/0273-1177(96)00057-9 PG 23 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BF77W UT WOS:A1996BF77W00008 ER PT S AU Larkin, DJ AF Larkin, DJ BE Hepp, AF Kumta, PN Sullivan, JJ Fischman, GS Kaloyeros, AE TI Dopant incorporation efficiency in CVD silicon carbide epilayers SO COVALENT CERAMICS III - SCIENCE AND TECHNOLOGY OF NON-OXIDES SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Covalent Ceramics III - Science and Technology of Non-Oxides CY NOV 27-30, 1995 CL BOSTON, MA SP Mat Res Soc C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 4 Z9 4 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-313-4 J9 MATER RES SOC SYMP P PY 1996 VL 410 BP 337 EP 344 PG 8 WC Materials Science, Ceramics SC Materials Science GA BG08P UT WOS:A1996BG08P00050 ER PT B AU Schwuttke, UM Veregge, JR Quan, AG AF Schwuttke, UM Veregge, JR Quan, AG BE Lee, JK Liebowitz, J Chae, YM TI Cooperating expert systems, for the next generation of real-time monitoring applications SO CRITICAL TECHNOLOGY: PROCEEDINGS OF THE THIRD WORLD CONGRESS ON EXPERT SYSTEMS, VOLS I AND II LA English DT Proceedings Paper CT 3rd World Congress on Expert Systems on Critical Technology CY FEB 05-09, 1996 CL SEOUL, SOUTH KOREA SP Korean Expert Syst Soc, Int Soc Intelligent Syst, Electr Times DE automation; distributed systems; expert systems; monitoring and diagnosis; real-time C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU COGNIZANT COMMUNICATION CORP PI ELMSFORD PA 3 HARTSDALE RD, ELMSFORD, NY 10523-3701 BN 1-88234-504-5 PY 1996 BP 521 EP 528 PG 8 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Manufacturing; Medical Informatics SC Computer Science; Engineering; Medical Informatics GA BG25B UT WOS:A1996BG25B00066 ER PT B AU Larson, M Lysek, M Coulter, DR Macenka, SA AF Larson, M Lysek, M Coulter, DR Macenka, SA BE Burriesci, LG Heaney, JB TI The SIRTF telescope test facility: The first year SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE cryogenic optics; optics testing; SIRTF; infrared C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 2 EP 7 DI 10.1117/12.254155 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00001 ER PT B AU Hagopian, JG Hayes, P Crooke, J Lyons, J AF Hagopian, JG Hayes, P Crooke, J Lyons, J BE Burriesci, LG Heaney, JB TI Optomechanical alignment of the composite infrared spectrometer (CIRS) for the Cassini mission to Saturn SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE infrared spectrometer; optical alignment; Cassini; CIRS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 3 Z9 3 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 46 EP 58 DI 10.1117/12.254147 PG 13 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00006 ER PT B AU Hayes, P Lyons, JJ Hagopian, J AF Hayes, P Lyons, JJ Hagopian, J BE Burriesci, LG Heaney, JB TI Alignment verification by wavefront testing of the composite infrared spectrometer SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 59 EP 65 DI 10.1117/12.254151 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00007 ER PT B AU Hagopian, JG AF Hagopian, JG BE Burriesci, LG Heaney, JB TI Cryogenic optical alignment stability test (COAST) of the composite infrared spectrometer (CIRS) engineering unit for the Cassini mission to Saturn SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE infrared spectrometer; optical alignment; Cassini; CIRS; cryogenic alignment; cryogenic testing C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 66 EP 80 DI 10.1117/12.254148 PG 15 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00008 ER PT B AU Hagopian, JG Hayes, P Crooke, J Lyons, J Morell, A French, T Hersh, M AF Hagopian, JG Hayes, P Crooke, J Lyons, J Morell, A French, T Hersh, M BE Burriesci, LG Heaney, JB TI High-stability, adjustable, cryogenic-compatable beamsplitter mounts for the composite infrared spectrometer (CIRS) for the Cassini mission to Saturn SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE infrared spectrometer; cryogenic beamsplitter mount; adjustable beamsplitter mount; CIRS; Cassini C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 81 EP 91 DI 10.1117/12.254150 PG 11 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00009 ER PT B AU Hagopian, JG AF Hagopian, JG BE Burriesci, LG Heaney, JB TI Cryogenic interferometric alignment (CIA) of the composite infrared spectrometer (CIRS) engineering unit for the Cassini mission to Saturn SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE infrared spectrometer; optical alignment; Cassini; CIRS; cryogenic alignment; cryogenic testing C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 92 EP 104 DI 10.1117/12.254149 PG 13 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00010 ER PT B AU Crooke, JA Hagopian, JG AF Crooke, JA Hagopian, JG BE Burriesci, LG Heaney, JB TI Alignment and cryogenic testing of the CASSINI - Composite-InfraRed spectrometer (CIRS) far-infrared (FIR) focal plane SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE focal plane; thermopile; Winston cone; far infrared; cryogenic; alignment; testing; polarization C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 105 EP 114 DI 10.1117/12.254152 PG 10 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00011 ER PT B AU Crooke, JA Hagopian, JG Stewart, KP Bradley, SE Robinson, D AF Crooke, JA Hagopian, JG Stewart, KP Bradley, SE Robinson, D BE Burriesci, LG Heaney, JB TI Flight qualification of the CASSINI - Composite-InfraRed spectrometer (CIRS) far-infrared (FIR) polarizing beamsplitter substrate: Mylar chosen over polypropylene SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE mylar; polypropylene; polarizing beamsplitter; far infrared; cryogenic; environmental; testing C1 NASA,GODDARD SPACE FLIGHT CTR,OPT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 128 EP 138 DI 10.1117/12.254135 PG 11 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00014 ER PT B AU Shirron, P Moody, MV Canavan, E AF Shirron, P Moody, MV Canavan, E BE Burriesci, LG Heaney, JB TI Development of a superconducting angular accelerometer SO CRYOGENIC OPTICAL SYSTEMS AND INSTRUMENTS VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Cryogenic Optical Systems and Instruments VII Conference CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE cryogenic instrumentation; gravity gradiometer; superconducting; accelerometer C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2202-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2814 BP 187 EP 196 DI 10.1117/12.254141 PG 10 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61N UT WOS:A1996BG61N00020 ER PT J AU Liu, FC Duncan, R Israelsson, U Chui, T Hensinger, D Nash, A Adriaans, H Moeur, W AF Liu, FC Duncan, R Israelsson, U Chui, T Hensinger, D Nash, A Adriaans, H Moeur, W TI Effect of gravity on the thermal conductivity measurement of He-4 near T lambda SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID NONLINEAR HEAT-TRANSPORT; SUPERFLUID TRANSITION; VAPOR-PRESSURE; BARS AB Precision measurements near the superfluid(lambda) transition of He-4 is limited by a gravity induced inhomogeneity in T-lambda. Critical Dynamics in Microgravity (DYNAMX), a NASA preproject) will study the thermal conductivity in the nonlinear region in Microgravity. Unlike the study of static properties, the thermal conductivity can be derived from the measurement of the spatial temperature profile which is essentially a local measurement of the temperature gradient. We present a method which, in principle, fully removes the apparent impact of gravity from the measurement. The inevitably finite spatial resolution of the probe and temperature resolution of the thermometer, however, make microgravity essential to study the region of interest. C1 SANDIA NATL LABS,ALBUQUERQUE,NM 87185. UNIV NEW MEXICO,ALBUQUERQUE,NM 87131. RP Liu, FC (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 11 TC 2 Z9 2 U1 0 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 87 EP 88 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800045 ER PT J AU Pearson, D Chui, TCP Tonucci, RJ Lipa, JA AF Pearson, D Chui, TCP Tonucci, RJ Lipa, JA TI Planned experiment to measure the superfluid density of confined He-4 near T-lambda SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB An experiment using Helmholtz resonator techniques is proposed to measure the effects of confinement on the superfluid density in He-4 near the lambda point. Recent experimental and technological innovations afford the opportunity of dramatically improving previous measurements. We will exploit recent high resolution thermometry techniques which provide a resolution of the lambda point to within 10(-9) K. In addition, the development of glass channel arrays with less than a one percent deviation throughout the entire array and high packing densities will provide a containment sample that is much improved over previous work. Finally, we will employ a high resolution pressure sensor with a SQUID readout to detect the small signal associated with a close approach to the transition.* C1 USN,RES LAB,DIV OPT SCI,WASHINGTON,DC 20375. STANFORD UNIV,DEPT PHYS,STANFORD,CA 94305. RP Pearson, D (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 135 EP 136 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800069 ER PT J AU Chui, TCP Goodstein, DL Harter, AW Mukhopadhyay, R AF Chui, TCP Goodstein, DL Harter, AW Mukhopadhyay, R TI Heat capacity of superfluid He-4 in the presence of a heat current near T lambda SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID TRANSITION; HELIUM AB We present a thermodynamic theory of superfluid helium in the presence of a heat current Q. A thermodynamic relation is derived expressing the heat capacity in terms of rho(s)(W), which describes the depression of the superfluid density with the counterflow velocity W. We find that at constant Q the heat capacity, C-Q, diverges, raising the possibility of a new second order phase transition.* RP Chui, TCP (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 11 TC 2 Z9 2 U1 1 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 175 EP 176 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800089 ER PT J AU Mukharsky, YM Chui, TCP Mukhopadhyay, R Goodstein, D AF Mukharsky, YM Chui, TCP Mukhopadhyay, R Goodstein, D TI The heat capacity of He-4 under rotation near T lambda. SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID SUPERFLUID AB The heat capacity of He-4 in a small rotating cylinder near the lambda transition is computed using the Psi theory of Ginzburg and Sobyanin. We obtained a phase diagram for vortex formation which agrees with the computation of Kiknadze and Mamaladze. RP Mukharsky, YM (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. RI Mukharsky, Yury/F-4920-2013 NR 8 TC 0 Z9 0 U1 0 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 177 EP 178 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800090 ER PT J AU Larson, M Liu, FC Israelsson, UE AF Larson, M Liu, FC Israelsson, UE TI Reducing gravity at the superfluid transition in helium-4 SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID LAMBDA-POINT; HE-4 AB There are two intrinsic experimental limitations in measurements near T-lambda for traditional ground based experiments: the gravitationally induced pressure variations present in ally macroscopic helium sample limit how closely the transition call be approached, and the onset of convection in a sample with T > T-lambda limits the range of heat values that can be used. To overcome these limitations, we have built a low gravity simulator consisting of a superconducting magnet with a magnetic field profile shaped to provide a magnetic force opposite that of gravity. Preliminary measurements have shown a decrease in the range of reduced temperatures across a sample but not the expected suppression of the onset of convection. RP Larson, M (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 6 TC 7 Z9 7 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 179 EP 180 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800091 ER PT J AU Yeh, NC Jiang, W Strayer, DM Asplund, NN AF Yeh, NC Jiang, W Strayer, DM Asplund, NN TI Precise measurements of the density and critical phenomena near the phase transitions in helium using high-Q niobium microwave cavities SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB The experimental approach of using high-Q niobium microwave resonator (Q similar to 10(10)) and high resolution thermometry to achieve precise measurements of the density and critical phenomena in Liquid helium near phase transitions is described. The numerical verifications of the experimental feasibility as well as the applications of the precision density measurement techniques are discussed. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP Yeh, NC (reprint author), CALTECH,DEPT PHYS,PASADENA,CA 91125, USA. NR 6 TC 3 Z9 3 U1 0 U2 3 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 181 EP 182 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800092 ER PT J AU Ahlers, G Liu, FC AF Ahlers, G Liu, FC TI He-4 very near T lambda heated from above SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID SUPERFLUID TRANSITION; TRANSPORT AB We discuss the feasibility and likely benefits of studying the superfluid transition of He-4 very near T-lambda in the presence of gravity, and of a finite heat current Q applied from the top of the sample and extracted from below. Part of or the entire sample can exist in a homogeneous critical state represented by a uniform reduced temperature t = [T(z) - T-lambda(z)]/T-lambda (z is the vertical coordinate) without inducing convection in the HeI layer. Precision measurements of the thermal conductivity and boundary resistance very near T-lambda, including inside the nonlinear region, should be possible; but only along a single path in the Q - t plane. C1 UNIV CALIF SANTA BARBARA,CTR NONLINEAR SCI,SANTA BARBARA,CA 93106. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP Ahlers, G (reprint author), UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106, USA. NR 9 TC 0 Z9 0 U1 0 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 187 EP 188 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800095 ER PT J AU Liu, FC Ahlers, G AF Liu, FC Ahlers, G TI Thermal resistance below the superfluid transition of He-4 in a heat current SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys ID LAMBDA-POINT; HELIUM; FLOW C1 UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106. UNIV CALIF SANTA BARBARA,CTR NONLINEAR SCI,SANTA BARBARA,CA 93106. RP Liu, FC (reprint author), CALTECH,JET PROP LAB,M-S 79-24,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 13 TC 1 Z9 1 U1 0 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 189 EP 190 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800096 ER PT J AU Baddar, H Fu, HY Liu, FC Ahlers, G AF Baddar, H Fu, HY Liu, FC Ahlers, G TI The thermal boundary resistance in superfluid He-4 near T lambda SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB The thermal boundary resistance between copper and superfluid helium was measured near T-lambda for heat fluxes Q from 0.04 to 130 mu W/cm(2) in three cells of similar construction. In the low-power limit the results are consistent with the singularity reported by Duncan et al.. The excess finite-power contribution to the boundary resistance near T-lambda varies significantly for different cells. C1 UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP Baddar, H (reprint author), UNIV CALIF SANTA BARBARA,CTR NONLINEAR SCI,SANTA BARBARA,CA 93106, USA. NR 6 TC 2 Z9 2 U1 0 U2 1 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 1 BP 191 EP 192 PG 2 WC Physics, Multidisciplinary SC Physics GA VL438 UT WOS:A1996VL43800097 ER PT J AU Hahn, I Gonzalez, A Barmatz, M AF Hahn, I Gonzalez, A Barmatz, M TI Fuzzy logic controller for low temperature application SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB We describe the development of a new computer-based temperature controller using fuzzy logic algorithms. Fuzzy logic rules and reasoning are applied in-situ for determining PID controller parameters based on an error signal and its first derivative. This controller design will be used to stabilize several isothermal stages of a cryostat for studying thermodynamic properties near the He-3 liquid-gas critical point. Simulations of temperature control near the He-3 critical point (T-c = 3.3 K) show that faster settling, smaller overshoot, and easier control can be achieved using the fuzzy logic temperature controller in comparison with the traditional PID controller. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 4 TC 0 Z9 0 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 5 BP 2753 EP 2754 DI 10.1007/BF02570363 PG 2 WC Physics, Multidisciplinary SC Physics GA VL442 UT WOS:A1996VL44200165 ER PT J AU Qin, X Nissen, JA Swanson, D Williamson, PR Stricker, DA Lipa, JA Chui, TCP Israelsson, UE AF Qin, X Nissen, JA Swanson, D Williamson, PR Stricker, DA Lipa, JA Chui, TCP Israelsson, UE TI High resolution thermometry for the confined helium experiment SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB We report results with a newly designed Cu(NH4)(2)Br-4 . 2H(2)O paramagnetic salt high resolution thermometry that will be used in the confined helium experiment to be flown on space Shuttle. The improved thermometry has a fast response time and can measure temperature with a resolution of 0.3 nK in a 10 Hz bandwidth. Our measurements have shown that the effect of cosmic ray heating observed in the lambda point experiment in space can be reduced to a negligible level. The current thermometry appears capable of operating in space at the limit imposed by thermodynamic fluctuations. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RP Qin, X (reprint author), STANFORD UNIV,DEPT PHYS,STANFORD,CA 94305, USA. NR 6 TC 5 Z9 5 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 5 BP 2857 EP 2858 DI 10.1007/BF02570415 PG 2 WC Physics, Multidisciplinary SC Physics GA VL442 UT WOS:A1996VL44200217 ER PT J AU Israelsson, UE Ruiz, R Lee, MC Reinker, R AF Israelsson, UE Ruiz, R Lee, MC Reinker, R TI Opportunities for low temperature research aboard the space station SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys AB A cryogenic Space Station facility is being developed by the Jet Propulsion Laboratory and industrial partners to support the microgravity needs of the international scientific community. The facility will be attached to the Japanese Experiments Module's Exposed Facility and will operate with a 6 month helium cryogen lifetime. Flights of the facility are planned at 2 year intervals starting in 2003 with each flight accommodating multiple scientific experiments. Capabilities, conceptual designs and development plans for the facility will be discussed along with a summary of potential near term flight candidate experiments. C1 NASA HEADQUARTERS,WASHINGTON,DC. BALL AEROSP & TECHNOL CORP,BOULDER,CO. RP Israelsson, UE (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 2 TC 1 Z9 1 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 5 BP 2877 EP 2878 DI 10.1007/BF02570425 PG 2 WC Physics, Multidisciplinary SC Physics GA VL442 UT WOS:A1996VL44200227 ER PT J AU Israelsson, UE Ruiz, R Reinker, R AF Israelsson, UE Ruiz, R Reinker, R TI Low temperature research aboard the Space Station SO CZECHOSLOVAK JOURNAL OF PHYSICS LA English DT Article; Proceedings Paper CT 21st International Conference on Low Temperature Physics (LT 21) CY AUG 08-14, 1996 CL PRAGUE, CZECH REPUBLIC SP Int Union Pure & Appl Phys, Charles Univ, Prague, Fac Math & Phys, Acad Sci Czech Republ, Prague, Inst Phys, Univ Bayreuth, Germany ID RENORMALIZATION-GROUP; THERMAL-CONDUCTIVITY; CRITICAL EXPONENTS; LAMBDA; MODEL AB A cryogenic Space Station facility is being developed by the Jet Propulsion Laboratory and industrial partners to support the microgravity needs of the international scientific community. The facility will be attached to the Japanese Experiments Module's Exposed Facility and will operate with a 6 month helium cryogen lifetime. Flights of the facility are planned at 2 year intervals starting in 2003 with each flight accommodating multiple scientific experiments. Capabilities, conceptual designs and development plans for the facility will be discussed along with a summary of potential near term flight candidate experiments. C1 NASA,WASHINGTON,DC. BALL AEROSP & TECHNOL CORP,BOULDER,CO. RP Israelsson, UE (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 17 TC 0 Z9 0 U1 0 U2 0 PU CZECHOSLOVAK JNL OF PHYSICS PI PRAGUE PA FYZIKALNI USTAV AV NA SLOVANCE 2, PRAGUE, CZECH REPUBLIC 180 40 SN 0011-4626 J9 CZECH J PHYS JI Czech. J. Phys. PY 1996 VL 46 SU 6 BP 3321 EP 3324 DI 10.1007/BF02548147 PG 4 WC Physics, Multidisciplinary SC Physics GA WH152 UT WOS:A1996WH15200067 ER PT J AU Decker, HJ AF Decker, HJ TI Why pay Microsoft for bugs? SO DATAMATION LA English DT Letter RP Decker, HJ (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAHNERS-DENVER PUBLISHING CO PI HIGHLANDS RANCH PA 8773 S RIDGELINE BLVD, HIGHLANDS RANCH, CO 80126-2329 SN 0011-6963 J9 DATAMATION JI Datamation PD JAN 1 PY 1996 VL 42 IS 1 BP 9 EP 9 PG 1 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA TP307 UT WOS:A1996TP30700004 ER PT B AU Vaughan, AH AF Vaughan, AH BE Braat, JJM TI Application of group indices of refraction to achromatic lens design SO DESIGN AND ENGINEERING OF OPTICAL SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Design and Engineering of Optical Systems CY MAY 13-16, 1996 CL GLASGOW, SCOTLAND SP Corning France, Essilor Int, Glasgow Dev Agcy, Pilkington Optron, Scottish Enterprise, European Opt Soc, Soc Photo Opt Instrumentat Engineers, Commiss European Communities, Directorate Gen Sci Res & Dev, Inst Phys DE lens design; group velocity; achromatism; secondary color; refraction; dispersion optical glass; ultrashort light pulses; interferometry C1 CALTECH,JET PROP LAB,PASADENA,CA 91009. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2159-6 J9 P SOC PHOTO-OPT INS PY 1996 VL 2774 BP 728 EP 734 DI 10.1117/12.246720 PG 7 WC Optics SC Optics GA BG32A UT WOS:A1996BG32A00072 ER PT J AU Miyoshi, K AF Miyoshi, K TI My impressions of research activities in CVD diamond and related materials in Japan SO DIAMOND FILMS AND TECHNOLOGY LA English DT Editorial Material C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MYU K K PI TOKYO PA SCIENTIFIC PUBLISHING DIV, 2-32-3 SENDAGI, BUNKYO-KU, TOKYO 113, JAPAN SN 0917-4540 J9 DIAMOND FILM TECHNOL JI Diam. Films Technol. PY 1996 VL 6 IS 1 BP 49 EP 52 PG 4 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films SC Materials Science GA UX400 UT WOS:A1996UX40000005 ER PT S AU Krainsky, IL Mearini, GT Asnin, VM Sun, H Foygel, M Petukhov, AG AF Krainsky, IL Mearini, GT Asnin, VM Sun, H Foygel, M Petukhov, AG BE Dreifus, DL Collins, A Humphreys, T Das, K Pehrsson, PE TI Auger electron spectroscopy of the CVD diamond surface under electron exposure SO DIAMOND FOR ELECTRONIC APPLICATIONS SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Diamond for Electronic Applications CY NOV 27-DEC 01, 1995 CL BOSTON, MA SP Mat Res Soc C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 1 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-319-3 J9 MATER RES SOC SYMP P PY 1996 VL 416 BP 431 EP 435 PG 5 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Materials Science, Characterization & Testing; Materials Science, Coatings & Films SC Engineering; Materials Science GA BF31Q UT WOS:A1996BF31Q00061 ER PT B AU Wilson, DW Maker, PD Muller, RE AF Wilson, DW Maker, PD Muller, RE BE Cindrich, I Lee, SH TI Binary optic reflection grating for an imaging spectrometer SO DIFFRACTIVE AND HOLOGRAPHIC OPTICS TECHNOLOGY III SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Diffractive and Holographic Optics Technology III CY FEB 01-02, 1996 CL SAN JOSE, CA SP Soc Photo Opt Instrumentat Engineers, Adv Res Projects Agcy DE diffractive optics; binary optics; hybrid optical elements; gratings; imaging spectrometer; electron-beam lithography C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2063-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2689 BP 255 EP 266 DI 10.1117/12.239629 PG 12 WC Optics SC Optics GA BF67S UT WOS:A1996BF67S00025 ER PT S AU Cordova, F AF Cordova, F BE Adam, NR Bhargava, BK Halem, M Yesha, Y TI Communicating NASA's science to the public SO DIGITAL LIBRARIES: RESEARCH AND TECHNOLOGY ADVANCES SE LECTURE NOTES IN COMPUTER SCIENCE LA English DT Article; Proceedings Paper CT ADL 95 Forum on Research and Technology Advances in Digital Libraries CY MAY 15-17, 1995 CL MCLEAN, VA SP NASA RP Cordova, F (reprint author), NASA,NASA HEADQUARTERS,CODE AS,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN 33 PA HEIDELBERGER PLATZ 3, W-1000 BERLIN 33, GERMANY SN 0302-9743 BN 3-540-61410-9 J9 LECT NOTES COMPUT SC PY 1996 VL 1082 BP 1 EP 16 PG 16 WC Computer Science, Theory & Methods SC Computer Science GA BH38D UT WOS:A1996BH38D00001 ER PT S AU Rorvig, ME Hutchison, MW Shelton, RO Smith, SL Yazbeck, ME AF Rorvig, ME Hutchison, MW Shelton, RO Smith, SL Yazbeck, ME BE Adam, NR Bhargava, BK Halem, M Yesha, Y TI An intelligent agent for the K-12 educational community SO DIGITAL LIBRARIES: RESEARCH AND TECHNOLOGY ADVANCES SE LECTURE NOTES IN COMPUTER SCIENCE LA English DT Article; Proceedings Paper CT ADL 95 Forum on Research and Technology Advances in Digital Libraries CY MAY 15-17, 1995 CL MCLEAN, VA SP NASA C1 SCI APPLICAT INT CORP,HOUSTON,TX 77058. HERNANDEZ ENGN INC,HOUSTON,TX 77058. LINCOM CORP,HOUSTON,TX 77058. RP Rorvig, ME (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,SOFTWARE TECHNOL BRANCH,HOUSTON,TX 77058, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN 33 PA HEIDELBERGER PLATZ 3, W-1000 BERLIN 33, GERMANY SN 0302-9743 BN 3-540-61410-9 J9 LECT NOTES COMPUT SC PY 1996 VL 1082 BP 167 EP 177 PG 11 WC Computer Science, Theory & Methods SC Computer Science GA BH38D UT WOS:A1996BH38D00013 ER PT B AU Wang, Y AF Wang, Y BE Lean, EG Tian, ZR Wu, BG TI Surface plasmon tunable color filter and projection display SO DISPLAY DEVICES AND SYSTEMS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Display Devices and Systems CY NOV 06-07, 1996 CL BEIJING, PEOPLES R CHINA SP Soc Photo Opt Instrumentat Engineers, China Opt & Optoelectr Manufacturers Assoc, Chinese Opt Soc, Natl Nat Sci Fdn China, N China Optoelectr Ind Corp, China Daheng Corp, Photon Soc Chinese Amer, Opt Soc Amer DE surface plasmon; tunable filter; display; projector; electro-optics C1 CALTECH,JET PROP LAB,PASADENA,CA 91009. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2293-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2892 BP 144 EP 147 DI 10.1117/12.253324 PG 4 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BG44S UT WOS:A1996BG44S00022 ER PT B AU Fairhurst, AM AF Fairhurst, AM GP INT MENTORING ASSOC TI Cross-cultural mentoring: Designing a program that works SO DIVERSITY IN MENTORING LA English DT Proceedings Paper CT 1996 Diversity in Mentoring Conference CY APR 11-13, 1996 CL SAN ANTONIO, TX SP W Michigan Univ, Int Mentoring Assoc C1 JET PROP LAB,PASADENA,CA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU INT MENTORING ASSOC PI KALAMAZOO PA WESTERN MICHIGAN UNIV, OFFICE CONF & INST, KALAMAZOO, MI 49007 PY 1996 BP 94 EP 101 PG 8 WC Education & Educational Research SC Education & Educational Research GA BG43M UT WOS:A1996BG43M00010 ER PT S AU Standish, EM Newhall, XX AF Standish, EM Newhall, XX BE FerrazMello, S Morando, B Arlot, JE TI New accuracy levels for solar system ephemerides SO DYNAMICS, EPHEMERIDES AND ASTROMETRY OF THE SOLAR SYSTEM SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 172nd Symposium of the International-Astronomical-Union on Dynamics, Ephemerides and Astrometry of the Solar System CY JUL 03-08, 1995 CL PARIS, FRANCE SP Int Astron Union ID LARGE ARRAY; URANUS AB DE403/LE403 is the latest JPL Planetary and Lunar Ephemeris. It represents a number of changes and improvements to previous JPL ephemerides: the reference frame is now that of the IERS, newer and more accurate observations are used in the adjustment process, some of the data reduction techniques have been refined, and improved dynamical modeling has been incorporated into the equations of motion. As a result, the internal accuracy of the inner four planets has been improved. Further, various measurements accurately tie Jupiter onto the IERS Reference Frame. In the future, use of CCD measurements and the Hipparcos Catalogue should improve the ephemerides of the outermost four planets. DE403/LE403 has been integrated over 6000 years, from 3000 BC to 3000 AD. A more condensed representation has been made from this, named DE404/LE404. It replaces DE102 as the new JPL ''Long Ephemeris''. RP Standish, EM (reprint author), CALTECH,JPL,PASADENA,CA 91109, USA. NR 21 TC 2 Z9 2 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4084-1 J9 IAU SYMP PY 1996 IS 172 BP 29 EP 36 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG13M UT WOS:A1996BG13M00003 ER PT S AU Newhall, XX Williams, JG Standish, EM AF Newhall, XX Williams, JG Standish, EM BE FerrazMello, S Morando, B Arlot, JE TI Planetary and lunar ephemerides, lunar laser ranging, and lunar physical librations SO DYNAMICS, EPHEMERIDES AND ASTROMETRY OF THE SOLAR SYSTEM SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 172nd Symposium of the International-Astronomical-Union on Dynamics, Ephemerides and Astrometry of the Solar System CY JUL 03-08, 1995 CL PARIS, FRANCE SP Int Astron Union ID MOON RP Newhall, XX (reprint author), CALTECH,JET PROPULS LAB,PASADENA,CA 91109, USA. NR 11 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4084-1 J9 IAU SYMP PY 1996 IS 172 BP 37 EP 44 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG13M UT WOS:A1996BG13M00004 ER PT S AU Pang, KD Yau, KK AF Pang, KD Yau, KK BE FerrazMello, S Morando, B Arlot, JE TI The need for more accurate 4000-year ephemerides, based on lunar and spacecraft ranging, ancient eclipse and planetary data SO DYNAMICS, EPHEMERIDES AND ASTROMETRY OF THE SOLAR SYSTEM SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 172nd Symposium of the International-Astronomical-Union on Dynamics, Ephemerides and Astrometry of the Solar System CY JUL 03-08, 1995 CL PARIS, FRANCE SP Int Astron Union ID MOTION RP Pang, KD (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 20 TC 1 Z9 3 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4084-1 J9 IAU SYMP PY 1996 IS 172 BP 113 EP 116 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG13M UT WOS:A1996BG13M00014 ER PT S AU Ostro, SJ AF Ostro, SJ BE FerrazMello, S Morando, B Arlot, JE TI Radar astrometry of asteroids, comets and planetary satellites SO DYNAMICS, EPHEMERIDES AND ASTROMETRY OF THE SOLAR SYSTEM SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 172nd Symposium of the International-Astronomical-Union on Dynamics, Ephemerides and Astrometry of the Solar System CY JUL 03-08, 1995 CL PARIS, FRANCE SP Int Astron Union ID IMAGES; TOUTATIS; 433-EROS; SHAPE RP Ostro, SJ (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91125, USA. NR 31 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4084-1 J9 IAU SYMP PY 1996 IS 172 BP 365 EP 372 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG13M UT WOS:A1996BG13M00063 ER PT S AU Altunin, VI Alekseev, VA Akim, EL Eubanks, TM Kingham, KA Treuhaft, RN Sukhanov, KG AF Altunin, VI Alekseev, VA Akim, EL Eubanks, TM Kingham, KA Treuhaft, RN Sukhanov, KG BE FerrazMello, S Morando, B Arlot, JE TI Astrometry VLBI in space (AVS) SO DYNAMICS, EPHEMERIDES AND ASTROMETRY OF THE SOLAR SYSTEM SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 172nd Symposium of the International-Astronomical-Union on Dynamics, Ephemerides and Astrometry of the Solar System CY JUL 03-08, 1995 CL PARIS, FRANCE SP Int Astron Union C1 RADIO PHYS RES INST,NIGNY NOVGOROD 603600,RUSSIA. MV KELDYSH APPL MATH INST,MOSCOW 125047,RUSSIA. USN OBSERV,WASHINGTON,DC 20392. LAVOCHKIN ASSOC,KHIMKY 141400 2,RUSSIA. RP Altunin, VI (reprint author), CALTECH,JET PROPULS LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. OI Eubanks, Thomas Marshall/0000-0001-9543-0414 NR 5 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4084-1 J9 IAU SYMP PY 1996 IS 172 BP 497 EP 500 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG13M UT WOS:A1996BG13M00090 ER PT J AU Goody, R Haskins, R Abdou, W Chen, L AF Goody, R Haskins, R Abdou, W Chen, L TI Detection of climate forcing using emission spectra SO EARTH OBSERVATION AND REMOTE SENSING LA English DT Article ID GREENHOUSE GASES AB We discuss the use of thermal emission spectra recorded by satellites to construct climate indices that can detect the evolution of a specific climate forcing in a time series. The two important issues are selectivity against climate forcing other than one that is sought, and sensitivity to the required forcing. We show that indices with selectivity can be found, and that their sensitivity can be high. RP Goody, R (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91125, USA. NR 13 TC 4 Z9 4 U1 0 U2 1 PU HARWOOD ACAD PUBL GMBH PI READING PA C/O STBS LTD, PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1024-5251 J9 EARTH OBS REMOT SEN+ JI Earth Observ. Remote Sens. PY 1996 VL 13 IS 5 BP 713 EP 727 PG 15 WC Geography, Physical; Geosciences, Multidisciplinary; Remote Sensing; Imaging Science & Photographic Technology SC Physical Geography; Geology; Remote Sensing; Imaging Science & Photographic Technology GA UW448 UT WOS:A1996UW44800003 ER PT B AU Kalshoven, JE AF Kalshoven, JE BE Barnes, WL TI Airborne ground illuminator for hyperspectral validation and calibration SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE active remote sensing; hyperspectral; multispectral; calibration; airborne sensors; validation; optical sensors; vegetation index; NDVI; fluorescence; solar simulator AB A major difficulty in accurately quantifying various of the Earth's geophysical and biophysical features from the multispectral reflectance data acquired from space is the lack of extensive and reliable validation measurements from good ground truth. A new, active airborne sensor system, AVIS (Airborne Vegetation Index Sensor), addresses that problem. AVIS uses a flash lamp mounted on a NASA helicopter to illuminate the Earth with a 15 x 35 mrad spot. The visible and near-IR backscatterd radiation is then received hyperspectrally and can be analyzed. Initially designed for validation of theories on vegetation index determination, AVIS has broad application as a simulator for solar illumination for remote surface analysis. Its primary advantage is the reduction or elimination of atmospheric scattering and solar angle effects, and the removal of shadowing. It also provides repeatability for time analysis over the same sites. RP Kalshoven, JE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 67 EP 71 PG 3 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00006 ER PT B AU Rider, DM Beer, R Margolis, JS Worden, H Nandi, S Glavich, T AF Rider, DM Beer, R Margolis, JS Worden, H Nandi, S Glavich, T BE Barnes, WL TI Airborne emission spectrometer: A testbed for the EOS TES SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE remote sensing; infrared; interferometry; troposphere AB High resolution infrared spectroscopy is a versatile tool that provides measurements of a wide variety of atmospheric constituents. This paper describes the Atmospheric Emission spectrometer, an infrared Fourier transform spectrometer designed for remote sensing from an aircraft platform. RP Rider, DM (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 72 EP 77 DI 10.1117/12.258117 PG 2 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00007 ER PT B AU Palluconi, FD AF Palluconi, FD BE Barnes, WL TI Validation of the ASTER thermal infrared surface radiance data product SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE ASTER; EOS; thermal infrared; atmospheric correction; validation; buoys AB The Advanced Spaceborne Thermal Emission and reflection Radiometer (ASTER) is a 14 channel high spatial resolution instrument selected for flight on the EOS AM-1 platform. This instrument has a 60 km pointable cross-track swath and five thermal infrared channels between 8 and 12 micrometers with 90 m spatial resolution. Correction for the effect of atmospheric attenuation and emission will be made using a radiative transfer model and atmospheric parameters either from the EOS AM-1 platform instruments MODIS (Moderate-Resolution Imaging Spectroradiometer) and MISR (Multi-Angle imaging Spectroradiometer) or temperature and moisture profiles from global numerical assimilation models. The correction accuracy depends strongly on the accuracy of the atmospheric information used. To provide an objective assessment of the validity of the atmospheric correction in situ measurements of water surfaces under a variety of atmospheric conditions will be used to estimate the surface leaving radiance at the scale of an ASTER pixel. The procedure will use an array of continuously recording temperature buoys to establish the bulk water temperature, broadband radiometers to determine the near surface water temperature gradient and radiosonde and sunphotometer measurements and a radiative transfer model to deduce the sky irradiance. These measurements and the spectral emissivity of the water will be combined with the relative system spectral response to provide an estimate of thermal infrared surface leaving radiance for each ASTER thermal channel. An example of this approach using a multichannel thermal aircraft scanner as a stand in for ASTER will be described. It is expected this approach will provide estimates of surface radiance accurate, in temperature terms, to better than 1 K. RP Palluconi, FD (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 97 EP 104 DI 10.1117/12.258092 PG 4 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00010 ER PT B AU Lee, RB Childers, BA Smith, GL Paden, J Pandey, DR Thomas, S AF Lee, RB Childers, BA Smith, GL Paden, J Pandey, DR Thomas, S BE Barnes, WL TI Clouds and the Earth's Radiant Energy System (CERES) instrument level 1 science data validation plan for geolocated radiances. SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE radiometry; climate; radiation; solar; longwave; shortwave; metrology; calibration; validation; geolocation; bolometer AB From spacecraft platforms, the Clouds and the Earth's Radiant Energy System (CERES) scanning thermistor bolometers are designed to measure broadband Earth-reflected solar shortwave (0.3-5.0 mu m) and Earth-emitted longwave (5.0->100 mu m) radiances as well as emitted longwave radiances in the 8 -12 mu m water vapor window over geographical footprints as small as 10 kilometers at the nadir. In ground vacuum facilities, the thermistor bolometers and in-flight blackbody and tungsten lamp calibration systems are being calibrated using radiometric sources tied to the International Temperature Scale of 1990 (ITS'90). Using the in-flight calibration systems, the bolometers will be calibrated periodically before and after spacecraft launch to verify the stability of the bolometers responses and to determine response drifts/shifts if they occur. The in-flight systems calibration analyses along with validation analyses will be used to determine the flight data reduction coefficients (instrument gains and offsets) which will be used to convert the bolometer measurements into calibrated radiances at the top-of-the-atmosphere (similar to 30 km). If a bolometer response shifts or drifts more than 0.5% in the longwave region or more than 1.0% in the shortwave region, and if the validation studies verify the bolometer response change, the flight data reduction coefficients will be corrected. A coastline detection method, using strong contrasting longwave ocean-land scenes, will be used to assess error limits on the geographical locations of the radiances. The detection method was successfully used to assess upper limits (6 km) on the geolocation errors for the Earth Radiation Budget Satellite (ERBS) bolometric measurements of longwave radiances. For CERES, the detection method may be extended to shortwave radiances. In this paper, elements of the CERES instrument level 1 validation plan radiometric strategies are presented as well as the geolocation validation approaches. RP Lee, RB (reprint author), NASA,LANGLEY RES CTR,MS 420,HAMPTON,VA 23681, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 105 EP 116 PG 4 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00011 ER PT B AU Chrien, N Bruegge, C AF Chrien, N Bruegge, C BE Barnes, WL TI Out-of-band spectral correction algorithm for the multi-angle imaging SpectroRadiometer SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE spectral calibration; EOS; MISR AB The Multi-angle Imaging SpectroRadiometer (MISR) will be reporting band-weighted spectral radiances for its Level 1B1 Radiometric Product Although the out-of-band is a small percentage of the in-band response, me entire range from 365 to 1100 sun can potentially contribute to the reported radiance. For certain geophysical parameter retrieval algorithms, therefore, it is desirable to remove the out-of-band contribution, This will be done for select Level 2 products, In order to provide such a correction, some estimation must be made of the out-of-band scene spectral properties, so that this signal might be removed. For MISR this can be done by making use of information from all four bands (nominally 443, 555, 670, and 865 nm), This paper evaluates the effectiveness of a four point, piecewise-linear, approximation to the surface reflectance, This representation is derived from the four MISR bands. Pb evaluate this approach, data from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS)(1) is utilized. This sensor measures the total upwelling radiance from 400 to 2450 nm in the electromagnetic spectrum through 224 channels at IO-nm intervals. This study shows that, for MISR, there can be as large as a 5% difference in the total band-weighted spectral radiance, as compared to the desired in-band weighted spectral radiance. The MISR retrieved four point surface profile is sufficient to provide out-of-band correction to within 1% accuracy. RP Chrien, N (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 150 EP 161 DI 10.1117/12.258097 PG 2 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00015 ER PT B AU Park, HW Krueger, A Hilsenrath, E Jaross, G Haring, R AF Park, HW Krueger, A Hilsenrath, E Jaross, G Haring, R BE Barnes, WL TI Radiometric calibration of second generation Total Ozone Mapping Spectrometer (TOMS) SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE calibration; ozone; ultraviolet; backscatter; spectrometer AB The improved TOMS instruments, Flight Models 3, 4, and 5, are to be flown aboard Earth Probe (EP), Japanese ADEOS, and Russian Meteor-SM satellites, respectively. TOMS obtains the total column amount of the atmospheric ozone from measurements of the extra-terrestrial solar spectral irradiance and the backscattered earth spectral radiance at six ultraviolet wavelengths between 308.6 nm and 360 nm, The added scientific goal of new generation instruments is to monitor the trend of the global burden of the atmospheric ozone, which requires an accuracy of 1% in the calibration for the ratio of the radiance to the irradiance measurements. The emphasis of the prelaunch calibration approaches was to maximize the accuracy in the ratio of the calibration for the two measurement modes and to minimize possibility of the systematic errors. The source geometry was maintained as close as possible in the calibration setup for the two measurement modes so that the uncertainty associated with the source could be canceled out in the ratio of the two calibrations. Also, multiple calibration techniques and radiometric sources have been used to check consistency of the calibration. The FM-3 calibration results show a three sigma standard errors of the mean for the ratio calibration that range from 0.28% to 0.63% in descending order of the wavelength. RP Park, HW (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 162 EP 173 DI 10.1117/12.258098 PG 2 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00016 ER PT B AU Korechoff, R Kirby, D Hochberg, E Sepulveda, C Jovanovic, V AF Korechoff, R Kirby, D Hochberg, E Sepulveda, C Jovanovic, V BE Barnes, WL TI Distortion calibration of the MISR linear detectors SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE EOS; MISR; calibration; distortion AB The Multi-angle Imaging Spectro-Radiometer (MISR) instrument, which is scheduled to fly on the EOS AM1 platform, contains nine refractive cameras (four different lens designs) at preselected view angles which image in the push broom mode. Each focal plane contains four charge coupled device (CCD) line arrays consisting of 1504 active pixels; each array is preceded by one of the MISR spectral filters. In order to facilitate registration of the data generated by the 36 arrays during the initial phase Of the mission, the crosstrack pointing angle of each pixel in each array was measured in the laboratory at the camera subsystem level. These measurements were particularly challenging because the pixels had to be calibrated under flight conditions (in a vacuum over the temperature range 0 to 10 degrees C) to an accuracy of 1/8 pixel or 2.6 mu m. Given the first order properties of the various lenses, this requirement implies that the distortion had to be calibrated to better than 10 arcsec. This paper will discuss the hardware and software techniques utilized to accomplish this stringent calibration. RP Korechoff, R (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 174 EP 183 DI 10.1117/12.258099 PG 2 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00017 ER PT B AU Platnick, S Abel, P King, MD AF Platnick, S Abel, P King, MD BE Barnes, WL TI Effect of water vapor absorption on integrating sphere output radiance and consequences for instrument calibration SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE integrating sphere; integrating hemisphere; water vapor absorption; calibration AB Multiple photon scatterings inside an integrating sphere can result in significant path lengths compared with line-of-sight sources. In strong water vapor absorption channels, such as those on MODIS and the MODIS Airborne Simulator, these internal path lengths can result in a significant reduction in sphere output radiance. Path length probability distributions for photons exiting a sphere are determined using Monte Carlo calculations. Approximate analytic expressions are also derived. Results are used to determine the effect of water vapor absorption on integrating sphere sensor calibrations in several pertinent channels. RP Platnick, S (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Platnick, Steven/J-9982-2014; King, Michael/C-7153-2011 OI Platnick, Steven/0000-0003-3964-3567; King, Michael/0000-0003-2645-7298 NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 197 EP 205 DI 10.1117/12.258102 PG 3 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00019 ER PT B AU Dabney, PW Tierney, MR AF Dabney, PW Tierney, MR BE Barnes, WL TI Calibration & characterization of an airborne pushbroom spectroradiometer SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE calibration; airborne; simulator; spectroradiometer; MISR; multispectral; stray-light AB Improved methods for calibrating and characterizing the CCD array based off-nadir tiltable Advanced Solid-State Array Spectroradiometer (ASAS) were developed and applied. Sensor characteristics such as radiometric sensitivity, polarization sensitivity, signal-to-noise-ratio, temperature sensitivity, spectral bandpass, spectral distortion, spatial distortion, and spatial resolution were measured. Radiometric sensitivity, array temperature sensitivity, and signal-to-noise were measured using a Barium Sulfate coated integrating hemisphere whose output calibration is traceable to MST. Polarization sensitivity was measured for 48 of 62 spectral bands across all 512 spatial pixels. Spectral bandpass and spectral distortion were measured casing a 0.5 meter doublepass nonochromator. Spatial resolution (given as the modulation-transfer-function - MTF) and distortion were measured using a combination of monochromatic collimated light to directly measure the point-spread-function (PSF) and the edge spread function (ESF) derived from actual image data. The MTF obtain using the two techniques sire compared. Potential improvements to the test setups and methods are described. RP Dabney, PW (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 925,GREENBELT,MD 20771, USA. RI Dabney, Philip/C-9976-2013 NR 0 TC 0 Z9 0 U1 0 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 206 EP 216 DI 10.1117/12.258112 PG 3 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00020 ER PT B AU Eng, BT Murray, AT Pniel, M Geiler, G Leff, C Schwartz, AA AF Eng, BT Murray, AT Pniel, M Geiler, G Leff, C Schwartz, AA BE Barnes, WL TI Implementation of the ASTER science standard data product requirements in the EOSDIS system SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE ASTER; PGS; DAAC; standard data products; remote testing; design methodology AB The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is designed to provide a high-resolution map of the Earth in both visible, near-infrared, and thermal spectral regions of the electromagnetic spectrum. The ASTER Science Team has developed standard data product algorithms to permit the estimation of surface radiances and reflectance values, to calculate surface temperatures both over ts;ater and land. to provide a color enhanced product with a high degree of surface discriminability, in addition to other functions. The ASTER Product Generation System (PGS) Team, is implementing these requirements within the constraints of the EOSDIS system, using a rapid development methodology that emphasizes open lines of communication in a team approach using concurrent engineering techniques. The PGS Development environment was structured both to conform to the changing needs of the EOSDIS system and to incorporate experimentation with and modification of the science algorithms as the software was being developed and tested. This challenging environment required a focus on novel methods of requirements tracking, software interface uniformity, Toolkit transparency, and platform independence. This approach required a high degree of interoperability of the software development environment, as well as a flexible and highly integrated configuration management and testing approach. In addition in order to validate the PGS software in tile operational government of the EOSDIS, a remote integration testing approach was adopted to provide a rapid convergence of the final integrated system. This paper describes the critical elements in the development and integration of the ASTER PGS system. RP Eng, BT (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 218 EP 229 DI 10.1117/12.258103 PG 2 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00021 ER PT B AU Fisthtahler, L AF Fisthtahler, L BE Barnes, WL TI Standard data products from the MODIS science team SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE earth science data; remote sensing; land; ocean; atmosphere; EOS; MODIS AB The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument will view the Earth in 36 spectral hands ranging from 0.4 to 1.4 micrometers with spatial resolution from 250 to 1,000 meters. Its first flight will be onboard the EOS-AM1 spacecraft scheduled for launch in mid '98 into a near-polar 10:30 AM descending sun-synchonous orbit. In this orbit MODIS will provide global coverage every two days. Science instrument data will be brought to Goddard Space Flight Center for conversion from raw counts to TOA radiances supplemented with geolocation, view angle, and sun angle information. RP Fisthtahler, L (reprint author), NASA,GODDARD SPACE FLIGHT CTR,COMP SCI CORP,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 230 EP 244 DI 10.1117/12.258104 PG 3 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00022 ER PT B AU Murray, A Eng, B Thome, K AF Murray, A Eng, B Thome, K BE Barnes, WL TI Implementation of a very large atmospheric correction lookup table for ASTER using a relational database management system SO EARTH OBSERVING SYSTEM SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Earth Observing System CY AUG 05-06, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE ASTER; atmospheric correction; sybase; relational data base; query; RDBMS; lookup AB The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is designed to provide a high resolution map of the Earth in both visible, near-infrared, and thermal spectral regions of the electromagnetic spectrum. The ASTER Science Team has developed several standard data product algorithms, but the most complex and computing-intensive of these is the estimation of surface radiance and reflectance values, which is done by modeling and correcting for the effects of the atmosphere. The algorithm for atmospheric correction in the visible bands sensed by ASTER calls for the use of a very large Atmospheric Correction Look Up Table (ACLUT). The ACLUT contains coefficients which describe atmospheric effects on ASTER data under various conditions. The parameters used to characterize the atmosphere and its effects on radiation in the ASTER bands include aerosol and molecular optical depth, aerosol size distribution, single scattering albedo, and Solar, nadir view, and azimuth angles. The ACLUT coefficients are produced by thousands of runs of a Radiative Transfer Code (RTC) program produced by Phil Slater and Kurt Theme of U. of A. The final version of the ACLUT is expected to be in the neighborhood of 10 Gigabytes. The RDBMS Sybase is used to manage the process of generating the ACLUT as well as to host the table and service queries on it. Queries on the table are made using ASTER band number and seven floating-point values as keys. The floating-point keys do not necessarily exactly match key values in the database, so the query involves a hierarchical closest-fit search. All aspects of table implementation are described. RP Murray, A (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. RI Thome, Kurtis/D-7251-2012 NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2208-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2820 BP 245 EP 258 DI 10.1117/12.258105 PG 4 WC Engineering, Aerospace; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BG81X UT WOS:A1996BG81X00023 ER PT J AU Jones, CS Suarez, MJ AF Jones, CS Suarez, MJ GP AMER METEOROL SOC TI Modelled cloud effects on the surface energy balance SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 GODDARD SPACE FLIGHT CTR,GREENBELT,MD. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 111 EP 115 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00030 ER PT B AU Yang, S Lau, KM AF Yang, S Lau, KM GP AMER METEOROL SOC TI Impact of SST variability and land surface processes on the Asian summer monsoon SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. RI Lau, William /E-1510-2012 OI Lau, William /0000-0002-3587-3691 NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 126 EP 130 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00033 ER PT B AU Lau, WKM Bua, WR AF Lau, WKM Bua, WR GP AMER METEOROL SOC TI The relative impact of sst and land surface anomalies on tropical circulations SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,CLIMATE & RADIAT BRANCH,GREENBELT,MD 20771. RI Lau, William /E-1510-2012 OI Lau, William /0000-0002-3587-3691 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 143 EP 147 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00037 ER PT J AU Boulanger, JP Fu, LL AF Boulanger, JP Fu, LL GP AMER METEOROL SOC TI Evidence of long equatorial wave reflection from TOPEX/POSEIDON sea-level data SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 CALTECH,JET PROP LAB,PASADENA,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 203 EP 207 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00053 ER PT J AU Liu, T Taylor, P White, GH AF Liu, T Taylor, P White, GH GP AMER METEOROL SOC TI Conclusions and recommendations from a WCRP workshop on air-sea flux fields for forcing ocean models and validating GCMs SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 CALTECH,JET PROP LAB,PASADENA,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 268 EP 268 PG 1 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00069 ER PT J AU Busalacchi, AJ Chen, DK Rothstein, LM AF Busalacchi, AJ Chen, DK Rothstein, LM GP AMER METEOROL SOC TI The response of the thermohaline structure in the western equatorial Pacific to combined momentum and buoyancy forcing SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,HYDROSPHER PROC LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J95 EP J99 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00124 ER PT J AU Chao, WC Deng, LT AF Chao, WC Deng, LT GP AMER METEOROL SOC TI On the roles of wave-CISK and WISHE in a 2D model of super cloud clusters SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENFIELD,IN. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J25 EP J28 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00108 ER PT J AU Chou, SH Shie, CL Atlas, RM Ardizzone, J AF Chou, SH Shie, CL Atlas, RM Ardizzone, J GP AMER METEOROL SOC TI The December 1992 westerly wind burst and its impact on evaporation determined from SSM/I data SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J81 EP J84 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00121 ER PT B AU Sui, CH Li, X Lau, KM Adamec, D Lukas, R AF Sui, CH Li, X Lau, KM Adamec, D Lukas, R GP AMER METEOROL SOC TI Multi-scale air-sea interactions during TOGA COARE SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Lau, William /E-1510-2012 OI Lau, William /0000-0002-3587-3691 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J108 EP J111 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00127 ER PT J AU Walsh, EJ Hagan, DE Rogers, DP Pinkel, R Weller, RA Fairall, CW Vandemark, DC Swift, RN Scott, JF AF Walsh, EJ Hagan, DE Rogers, DP Pinkel, R Weller, RA Fairall, CW Vandemark, DC Swift, RN Scott, JF GP AMER METEOROL SOC TI Correlations between sea surface mean square slope, SST and wind speed under light wind conditions during TOGA COARE SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,LAB HYDROSOPHER PROC,WALLOPS ISL,VA 23337. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J54 EP J58 PG 5 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00115 ER PT J AU Wang, Y Tao, WK Simpson, J AF Wang, Y Tao, WK Simpson, J GP AMER METEOROL SOC TI The impact of ocean surface fluxes on a TOGA COARE convective system SO EIGHTH CONFERENCE ON AIR-SEA INTERACTION AND CONFERENCE ON THE GLOBAL OCEAN-ATMOSPHERE-LAND SYSTEM (GOALS) LA English DT Proceedings Paper CT 8th Conference on Air-Sea Interaction/Conference on the Global Ocean-Atmosphere-Land System (GOALS) CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP J38 EP J41 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BF43P UT WOS:A1996BF43P00111 ER PT J AU Jedlovec, GJ Atkinson, RJ AF Jedlovec, GJ Atkinson, RJ GP AMER METEOROL SOC TI Quality and control of water vapor winds SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GLOBAL HYDROL & CLIMATE CTR,HUNTSVILLE,AL 35806. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 5 EP 9 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00002 ER PT J AU Suggs, RJ Jedlovec, GJ AF Suggs, RJ Jedlovec, GJ GP AMER METEOROL SOC TI A comparison of total integrated water content retrieved from GOES-7 and GOES-8 SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,GLOBAL HYDROL & CLIMATE CTR,HUNTSVILLE,AL 35812. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 30 EP 34 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00008 ER PT B AU Mishchenko, MI Travis, LD Lacis, AA Chowdhary, J AF Mishchenko, MI Travis, LD Lacis, AA Chowdhary, J GP AMER METEOROL SOC TI Polarimetric retrieval of aerosol optical thickness over the ocean: The effect of wind speed SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025. RI Mishchenko, Michael/D-4426-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 386 EP 386 PG 1 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00101 ER PT J AU Chou, SH Shie, CL Atlas, RM Ardizzone, J AF Chou, SH Shie, CL Atlas, RM Ardizzone, J GP AMER METEOROL SOC TI Evaporation estimates over global oceans from SSM/I data SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 443 EP 447 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00116 ER PT B AU DaSilva, A Redder, C Dee, D AF DaSilva, A Redder, C Dee, D GP AMER METEOROL SOC TI Modeling retrieval error covariances for global data assimilation SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,DATA ASSIMILAT OFF,GREENBELT,MD 20771. RI da Silva, Arlindo/D-6301-2012 OI da Silva, Arlindo/0000-0002-3381-4030 NR 0 TC 2 Z9 2 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 503 EP 507 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00131 ER PT B AU Joiner, J Menard, R daSilva, AM AF Joiner, J Menard, R daSilva, AM GP AMER METEOROL SOC TI New methodologies for assimilating satellite retrievals SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,DATA ASSIMILAT OFF,GREENBELT,MD 20771. RI Joiner, Joanna/D-6264-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 513 EP 517 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00133 ER PT J AU Anyamba, E Susskind, J AF Anyamba, E Susskind, J GP AMER METEOROL SOC TI Estimates of sensible and latent heat flux over global oceans SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 545 EP 548 PG 4 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00142 ER PT J AU Smith, GL Lee, RB Barkstrom, BR Wielicki, BA Cooper, JE Kopia, LP Lawrence, RW AF Smith, GL Lee, RB Barkstrom, BR Wielicki, BA Cooper, JE Kopia, LP Lawrence, RW GP AMER METEOROL SOC TI The Clouds and the Earth's Radiant Energy System (CERES) instrument SO EIGHTH CONFERENCE ON SATELLITE METEOROLOGY AND OCEANOGRAPHY LA English DT Proceedings Paper CT 8th Conference on Satellite Meteorology and Oceanography CY JAN 28-FEB 02, 1996 CL ATLANTA, GA SP Amer Meteorol Soc C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1996 BP 578 EP 582 PG 5 WC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing SC Meteorology & Atmospheric Sciences; Oceanography; Remote Sensing GA BF41M UT WOS:A1996BF41M00150 ER PT S AU Simpson, JO Welch, SS StClair, TL AF Simpson, JO Welch, SS StClair, TL BE Jen, AKY Lee, CYC Dalton, LR Rubner, MF Wnek, GE Chiang, LY TI Novel piezoelectric polyimides SO ELECTRICAL, OPTICAL, AND MAGNETIC PROPERTIES OF ORGANIC SOLID STATE MATERIALS III SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Electrical, Optical, and Magnetic Properties of Organic Solid State Materials III, at the 1995 MRS Fall Meeting CY NOV 27-DEC 01, 1995 CL BOSTON, MA SP Mat Res Soc C1 NASA,LANGLEY RES CTR,COMPOSITES & POLYMERS BRANCH,HAMPTON,VA 23666. NR 0 TC 3 Z9 3 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-316-9 J9 MATER RES SOC SYMP P PY 1996 VL 413 BP 351 EP 356 PG 6 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Physics, Applied; Polymer Science SC Engineering; Materials Science; Physics; Polymer Science GA BF67L UT WOS:A1996BF67L00047 ER PT B AU Hofland, LM Stofel, EJ Taenaka, RK AF Hofland, LM Stofel, EJ Taenaka, RK GP IEEE TI Galileo probe lithium sulfur dioxide cell life testing SO ELEVENTH ANNUAL BATTERY CONFERENCE ON APPLICATIONS AND ADVANCES LA English DT Proceedings Paper CT 11th Annual Battery Conference on Applications and Advances CY JAN 09-12, 1996 CL CALIF STATE UNIV LONG BEACH, LONG BEACH, CA SP IEEE, Aerospace & Electr Syst Soc, Amer Inst Aeronaut & Astronaut, Electrochem Soc Inc, City Los Angeles, Dept Wat & Power, So Calif Edison Co HO CALIF STATE UNIV LONG BEACH C1 NASA,AMES RES CTR,SVERDRUPT TECHNOL,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2994-5 PY 1996 BP 9 EP 14 PG 6 WC Engineering, Aerospace; Electrochemistry; Engineering, Electrical & Electronic SC Engineering; Electrochemistry GA BF42T UT WOS:A1996BF42T00002 ER PT B AU Toft, MR Rao, GM AF Toft, MR Rao, GM GP IEEE TI Characteristic signature of aerospace nickel-cadmium cells on life-cycle testing SO ELEVENTH ANNUAL BATTERY CONFERENCE ON APPLICATIONS AND ADVANCES LA English DT Proceedings Paper CT 11th Annual Battery Conference on Applications and Advances CY JAN 09-12, 1996 CL CALIF STATE UNIV LONG BEACH, LONG BEACH, CA SP IEEE, Aerospace & Electr Syst Soc, Amer Inst Aeronaut & Astronaut, Electrochem Soc Inc, City Los Angeles, Dept Wat & Power, So Calif Edison Co HO CALIF STATE UNIV LONG BEACH C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2994-5 PY 1996 BP 73 EP 78 PG 6 WC Engineering, Aerospace; Electrochemistry; Engineering, Electrical & Electronic SC Engineering; Electrochemistry GA BF42T UT WOS:A1996BF42T00012 ER PT B AU Rao, GM Vaidyanathan, H Robbins, KM AF Rao, GM Vaidyanathan, H Robbins, KM GP IEEE TI Physico-chemical analysis of rechargeable aerospace cells SO ELEVENTH ANNUAL BATTERY CONFERENCE ON APPLICATIONS AND ADVANCES LA English DT Proceedings Paper CT 11th Annual Battery Conference on Applications and Advances CY JAN 09-12, 1996 CL CALIF STATE UNIV LONG BEACH, LONG BEACH, CA SP IEEE, Aerospace & Electr Syst Soc, Amer Inst Aeronaut & Astronaut, Electrochem Soc Inc, City Los Angeles, Dept Wat & Power, So Calif Edison Co HO CALIF STATE UNIV LONG BEACH C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2994-5 PY 1996 BP 85 EP 90 PG 6 WC Engineering, Aerospace; Electrochemistry; Engineering, Electrical & Electronic SC Engineering; Electrochemistry GA BF42T UT WOS:A1996BF42T00014 ER PT B AU Narayanan, SR Kindler, A JeffriesNakamura, B Chun, W Frank, H Smart, M Valdez, TI Surampudi, S Hatpert, G Kosek, J Cropley, C AF Narayanan, SR Kindler, A JeffriesNakamura, B Chun, W Frank, H Smart, M Valdez, TI Surampudi, S Hatpert, G Kosek, J Cropley, C GP IEEE TI Recent advances in PEM liquid-feed direct methanol fuel cells SO ELEVENTH ANNUAL BATTERY CONFERENCE ON APPLICATIONS AND ADVANCES LA English DT Proceedings Paper CT 11th Annual Battery Conference on Applications and Advances CY JAN 09-12, 1996 CL CALIF STATE UNIV LONG BEACH, LONG BEACH, CA SP IEEE, Aerospace & Electr Syst Soc, Amer Inst Aeronaut & Astronaut, Electrochem Soc Inc, City Los Angeles, Dept Wat & Power, So Calif Edison Co HO CALIF STATE UNIV LONG BEACH C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2994-5 PY 1996 BP 113 EP 122 PG 10 WC Engineering, Aerospace; Electrochemistry; Engineering, Electrical & Electronic SC Engineering; Electrochemistry GA BF42T UT WOS:A1996BF42T00019 ER PT B AU Huang, CK Smart, M Davies, E Surampudi, S AF Huang, CK Smart, M Davies, E Surampudi, S GP IEEE TI Recent development of rechargeable lithium-ion cells at JPL SO ELEVENTH ANNUAL BATTERY CONFERENCE ON APPLICATIONS AND ADVANCES LA English DT Proceedings Paper CT 11th Annual Battery Conference on Applications and Advances CY JAN 09-12, 1996 CL CALIF STATE UNIV LONG BEACH, LONG BEACH, CA SP IEEE, Aerospace & Electr Syst Soc, Amer Inst Aeronaut & Astronaut, Electrochem Soc Inc, City Los Angeles, Dept Wat & Power, So Calif Edison Co HO CALIF STATE UNIV LONG BEACH C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2994-5 PY 1996 BP 325 EP 328 PG 4 WC Engineering, Aerospace; Electrochemistry; Engineering, Electrical & Electronic SC Engineering; Electrochemistry GA BF42T UT WOS:A1996BF42T00056 ER PT B AU Huffman, RK Hubbard, M AF Huffman, RK Hubbard, M BE Haake, S TI A motion based virtual reality training simulator for bobsled drivers SO ENGINEERING OF SPORT LA English DT Proceedings Paper CT 1st International Conference on the Engineering of Sport CY JUL 02-04, 1996 CL SHEFFIELD, ENGLAND RP Huffman, RK (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,LINCOM CORP,HOUSTON,TX 77058, USA. NR 0 TC 3 Z9 3 U1 0 U2 1 PU A A BALKEMA PI ROTTERDAM PA PO BOX 1675, 3000 BR ROTTERDAM, NETHERLANDS BN 90-5410-822-3 PY 1996 BP 195 EP 203 PG 9 WC Engineering, Multidisciplinary; Engineering, Biomedical; Ergonomics; Sport Sciences SC Engineering; Sport Sciences GA BF87K UT WOS:A1996BF87K00028 ER PT J AU Williams, BC Cagan, J AF Williams, BC Cagan, J TI Activity analysis: Simplifying optimal design problems through qualitative partitioning SO ENGINEERING OPTIMIZATION LA English DT Article DE design; symbolic optimization; Karush-Kuhn-Tucker conditions; qualitative Karush-Kuhn-Tucker conditions AB Activity analysis is introduced as a means to strategically cut away subspaces of a design problem that can quickly be ruled out as suboptimal. This results in focused regions of the space in which additional symbolic or numerical analysis can take place. Activity analysis is derived from a qualitative abstraction of the Karush-Kuhn-Tucker conditions of optimality, used to partition an optimization problem into regions which are nonstationary and qualitatively stationary (qstationary). Activity analysis draws from the fields of gradient-based optimization, conflict-based approaches of combinatorial satisfying search, and monotonicity analysis. C1 CARNEGIE MELLON UNIV, DEPT MECH ENGN, PITTSBURGH, PA 15213 USA. RP NASA, AMES RES CTR, DIV COMP SCI, MOFFETT FIELD, CA 94035 USA. NR 20 TC 6 Z9 7 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0305-215X EI 1029-0273 J9 ENG OPTIMIZ JI Eng. Optimiz. PY 1996 VL 27 IS 2 BP 109 EP 137 DI 10.1080/03052159608941402 PG 29 WC Engineering, Multidisciplinary; Operations Research & Management Science SC Engineering; Operations Research & Management Science GA VW155 UT WOS:A1996VW15500002 ER PT J AU Azarm, S Tahmasebi, F AF Azarm, S Tahmasebi, F TI Multiobjective optimal design of a simplified P4R mechanism SO ENGINEERING OPTIMIZATION LA English DT Article DE mechanical design; mechanisms; multiobjective optimization ID NONMONOTONE LINE SEARCH; MANIPULATOR AB A simplified P4R mechanism, which is believed to be new, is presented. This mechanism has base-mounted actuators and for a given displacement at any output point along its output link, the required actuator displacements can be found very easily. An optimal design model of the mechanism with two design objectives is developed in order to (i) minimize a measure of the actuator torques, and (ii) maximize the workspace area. The requirements on dexterity, singluarity, and size of the mechanism form the constraints of the model. Several design tradeoff solutions with the same dexterity are reported. C1 NASA,GODDARD SPACE FLIGHT CTR,SYST ANAL BRANCH,GREENBELT,MD 20771. RP Azarm, S (reprint author), UNIV MARYLAND,DEPT MECH ENGN,COLLEGE PK,MD 20742, USA. NR 13 TC 3 Z9 3 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0305-215X J9 ENG OPTIMIZ JI Eng. Optimiz. PY 1996 VL 27 IS 2 BP 139 EP 153 DI 10.1080/03052159608941403 PG 15 WC Engineering, Multidisciplinary; Operations Research & Management Science SC Engineering; Operations Research & Management Science GA VW155 UT WOS:A1996VW15500003 ER PT B AU Girimaji, SS AF Girimaji, SS BE Rodi, W Bergeles, G TI Improved algebraic Reynolds stress model for engineering flows SO ENGINEERING TURBULENCE MODELLING AND EXPERIMENTS 3 SE ELSEVIER SERIES IN THERMAL AND FLUID SCIENCES LA English DT Proceedings Paper CT 3rd International Symposium on Engineering Turbulence Modelling and Measurements CY MAY 27-29, 1996 CL IRAKLION, GREECE SP Assembly World Conf Exptl Heat Transfer Fluid Mech & Thermodynam, Natl Tech Univ Athens, Univ Karsruhe, Greek Publaic Power Corp, Greek Gen Secretariat Res & Dev C1 NASA,LANGLEY RES CTR,ICASE,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 0-444-82463-4 J9 ELS SER THERM FLUID PY 1996 BP 121 EP 129 PG 9 WC Engineering, Aerospace; Engineering, Chemical; Engineering, Mechanical SC Engineering GA BG15D UT WOS:A1996BG15D00012 ER PT B AU Menter, FR AF Menter, FR BE Rodi, W Bergeles, G TI On the connection between one- and two-equation models of turbulence SO ENGINEERING TURBULENCE MODELLING AND EXPERIMENTS 3 SE ELSEVIER SERIES IN THERMAL AND FLUID SCIENCES LA English DT Proceedings Paper CT 3rd International Symposium on Engineering Turbulence Modelling and Measurements CY MAY 27-29, 1996 CL IRAKLION, GREECE SP Assembly World Conf Exptl Heat Transfer Fluid Mech & Thermodynam, Natl Tech Univ Athens, Univ Karsruhe, Greek Publaic Power Corp, Greek Gen Secretariat Res & Dev C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 0-444-82463-4 J9 ELS SER THERM FLUID PY 1996 BP 131 EP 140 PG 10 WC Engineering, Aerospace; Engineering, Chemical; Engineering, Mechanical SC Engineering GA BG15D UT WOS:A1996BG15D00013 ER PT B AU Jovic, S AF Jovic, S BE Rodi, W Bergeles, G TI Recovery of reattached turbulent shear layers SO ENGINEERING TURBULENCE MODELLING AND EXPERIMENTS 3 SE ELSEVIER SERIES IN THERMAL AND FLUID SCIENCES LA English DT Proceedings Paper CT 3rd International Symposium on Engineering Turbulence Modelling and Measurements CY MAY 27-29, 1996 CL IRAKLION, GREECE SP Assembly World Conf Exptl Heat Transfer Fluid Mech & Thermodynam, Natl Tech Univ Athens, Univ Karsruhe, Greek Publaic Power Corp, Greek Gen Secretariat Res & Dev C1 NASA,AMES RES CTR,MCAT INC,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE PUBL B V PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 0-444-82463-4 J9 ELS SER THERM FLUID PY 1996 BP 483 EP 492 PG 10 WC Engineering, Aerospace; Engineering, Chemical; Engineering, Mechanical SC Engineering GA BG15D UT WOS:A1996BG15D00046 ER PT B AU Sweet, BT Tiana, C AF Sweet, BT Tiana, C BE Verly, JG TI Image processing and fusion for landing guidance SO ENHANCED AND SYNTHETIC VISION 1996 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 1996 Conference on Enhanced and Synthetic Vision CY APR 08-10, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE autonomous landing guidance; sensors; infrared; imaging radar; registration; fusion C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 6 Z9 6 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2117-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2736 BP 84 EP 95 DI 10.1117/12.241024 PG 12 WC Engineering, Aerospace; Computer Science, Cybernetics; Optics SC Engineering; Computer Science; Optics GA BF76Q UT WOS:A1996BF76Q00010 ER PT B AU Smith, PN Sridhar, B AF Smith, PN Sridhar, B BE Verly, JG TI Realtime implementation of a passive ranging system SO ENHANCED AND SYNTHETIC VISION 1996 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 1996 Conference on Enhanced and Synthetic Vision CY APR 08-10, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE passive range estimation; realtime parallel computing; multisensor machine vision; obstacle avoidance C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2117-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2736 BP 143 EP 153 DI 10.1117/12.241038 PG 11 WC Engineering, Aerospace; Computer Science, Cybernetics; Optics SC Engineering; Computer Science; Optics GA BF76Q UT WOS:A1996BF76Q00016 ER PT J AU Ryer, CH Olla, BL AF Ryer, CH Olla, BL TI Social behavior of juvenile chum salmon, Oncorhynchus keta, under risk of predation: The influence of food distribution SO ENVIRONMENTAL BIOLOGY OF FISHES LA English DT Article DE risk balancing; trade-off; aggression; schooling; food monopolization; fish ID ATLANTIC SALMON; FEEDING MOTIVATION; BLUEGILL SUNFISH; SCHOOLING FISH; PATCH CHOICE; SALAR L; MECHANISMS; HAZARD; SIZE; AVOIDANCE AB Social interactions can influence both foraging reward and vulnerability to predators. We examined social interactions in groups of juvenile chum salmon, Oncorhynchus keta, receiving food that was either spatially dispersed, with many food items appearing synchronously, or spatially clumped, with individual food items appearing asynchronously. These experiments were conducted both in the presence and absence of predators. When food was dispersed and predators were absent, juvenile chum formed schools and all individuals had access to food, despite frequent agonistic interactions. When predators were present, schooling and feeding continued, but agonistic interactions ceased. In contrast, when food was clumped, dominant fish utilized aggression to monopolize food regardless of whether predators were present or absent, resulting in decreased group cohesion. These results illustrate that food distribution and social interaction may play a role in determining how fish balance predation risk against foraging reward. RP Ryer, CH (reprint author), OREGON STATE UNIV,HATFIELD MARINE SCI CTR,NATL MARINE FISHERIES SERV,ALASKA FISHERIES SCI CTR,NEWPORT,OR 97365, USA. NR 46 TC 23 Z9 24 U1 2 U2 5 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0378-1909 J9 ENVIRON BIOL FISH JI Environ. Biol. Fishes PD JAN PY 1996 VL 45 IS 1 BP 75 EP 83 DI 10.1007/BF00000629 PG 9 WC Ecology; Marine & Freshwater Biology SC Environmental Sciences & Ecology; Marine & Freshwater Biology GA TU919 UT WOS:A1996TU91900008 ER PT B AU Bejczy, AK AF Bejczy, AK GP IEEE IND ELECTR SOC TI Virtual reality in robotics SO ETFA '96 - 1996 IEEE CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, PROCEEDINGS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 1996 IEEE Conference on Emerging Technologies and Factory Automation (ETFA 96) CY NOV 18-21, 1996 CL KAUAI, HI SP IEEE Ind Electr Soc, Soc Instrument & Control Engineers Japan AB Computer graphics based ''Virtual Reality'' (VX) techniques offer very valuable task visualization aids for planning and previewing robotic systems and tasks,for predicting robotic actions, training robotic system operators, and for visual perception of non-visible events like contact forces in robotic tasks. The utility of computer graphics in robotic operations (in particular, in telerobotic tasks) can be significantly enhanced by high-fidelity calibration of VX images to actual TV camera images. This calibration will even permit the creation of artificial (synthetic) views of task scenes for which no TV camera views are available. RP Bejczy, AK (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 0 TC 1 Z9 1 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3685-2 PY 1996 BP 7 EP 15 PG 9 WC Automation & Control Systems; Engineering, Industrial; Engineering, Manufacturing; Engineering, Electrical & Electronic; Instruments & Instrumentation SC Automation & Control Systems; Engineering; Instruments & Instrumentation GA BG90T UT WOS:A1996BG90T00002 ER PT B AU Ellis, SR Breant, F Menges, B Jacoby, R Adelstein, BD AF Ellis, SR Breant, F Menges, B Jacoby, R Adelstein, BD GP IEEE IND ELECTR SOC TI Viewing difficulties with head-mounted aids for mechanical assembly using nearby virtual objects SO ETFA '96 - 1996 IEEE CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION, PROCEEDINGS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 1996 IEEE Conference on Emerging Technologies and Factory Automation (ETFA 96) CY NOV 18-21, 1996 CL KAUAI, HI SP IEEE Ind Electr Soc, Soc Instrument & Control Engineers Japan AB A head-mounted electronic haploscope was used in a see-through format to present computer generated, space-stabilized, nearby wire-like virtual objects to 18 subjects, The visual requirements of this task are very similar to those needed for use of a similar head-mounted information display under study as a primary information aid for manual aircraft wire harness assembly. The subjects visually traced the snake-like and rectilinear wire paths with a visual cursor before their dominant eye. Three subject groups used either monocular, biocular, or stereoscopic display conditions for 30 minutes of tracing. Pre and post tracing subjective measurements of viewing difficulties, disorientation, nausea, and measures of stereoscopic threshold, near and far horizontal and vertical phoria were made, Only the viewing difficulty, i.e. the eye and head/neck aches score, changed significantly. Biocular conditions were worse than either monocular or stereo which were nearly equivalent for this measure. The biocular viewing difficulties are likely due to conflicting looming and stereo disparity cues to vergence. Accordingly, special geometric design enhancements probably will be needed for biocular displays for work within arms reach. RP Ellis, SR (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3685-2 PY 1996 BP 418 EP 422 PG 5 WC Automation & Control Systems; Engineering, Industrial; Engineering, Manufacturing; Engineering, Electrical & Electronic; Instruments & Instrumentation SC Automation & Control Systems; Engineering; Instruments & Instrumentation GA BG90T UT WOS:A1996BG90T00068 ER PT B AU Jahoda, K Swank, JH Giles, AB Stark, MJ Strohmayer, T Zhang, W Morgan, EK AF Jahoda, K Swank, JH Giles, AB Stark, MJ Strohmayer, T Zhang, W Morgan, EK BE Siegmund, OHW Gummin, MA TI In orbit performance and calibration of the Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) SO EUV, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII Conference CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing DE Proportional Counters; on-orbit performance; timing; background AB The Proportional Counter Array (PCA) is designed to perform mu-second timing of bright galactic sources and broad band, confusion limited, studies of faint extragalactic sources in the 2-60 keV X-ray band. The PCA was launched as part of the Rossi X-ray Timing Explorer (RXTE) satellite into a circular orbit of altitude 580 km and 23 degrees inclination on December 30, 1995. The mission contains three experiments: a set of large area Xenon proportional counters sensitive from 2 - 60 keV (Proportional Counter Array: PCA), a set of large area sodium iodide scintillators sensitive from 15 - 200 keV (High Energy X-ray Timing Experiment: HEXTE), and three wide field of view scanning detectors which mont tor most of the sky each orbit (All Sky Monitor: ASM). The goals of the mission are summarized by Swank et al.(1) We present performance and calibration data on the measured and predicted in-orbit background, energy response, relative and absolute timing performance, and the operational possibililities made available with the high performance Experiment Data System (EDS) designed and built by MIT. RP Jahoda, K (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 662,GREENBELT,MD 20771, USA. RI Jahoda, Keith/D-5616-2012 NR 0 TC 458 Z9 459 U1 1 U2 4 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2196-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2808 BP 59 EP 70 DI 10.1117/12.256034 PG 12 WC Neurosciences; Optics SC Neurosciences & Neurology; Optics GA BG67M UT WOS:A1996BG67M00006 ER PT B AU Campbell, JW AF Campbell, JW BE Siegmund, OHW Gummin, MA TI A single grid pair Fourier telescope for imaging the sky in hard X-rays and gamma rays SO EUV, X-RAY, AND GAMMA-RAY INSTRUMENTATION FOR ASTRONOMY VII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII Conference CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing AB Fourier telescopes are an effective approach for providing images of hard xray and gamma-ray sources found in the Sky. Sufficient coverage of the (u,v) plane is a requirement for effective imaging. Unfortunately, this requirement is diametrically opposed to the requirements to minimize instrument weight and cost which translate into minimizing the number of grids. This paper reports on a telescope design incorporating only one real and imaginary set of grid pairs which provides superior imaging performance at a significantly reduced cost. RP Campbell, JW (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,ADV SPACE MISS PS02,PROGRAM DEV,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2196-0 J9 P SOC PHOTO-OPT INS PY 1996 VL 2808 BP 546 EP 554 DI 10.1117/12.256007 PG 9 WC Neurosciences; Optics SC Neurosciences & Neurology; Optics GA BG67M UT WOS:A1996BG67M00046 ER PT S AU DesMarais, DJ AF DesMarais, DJ BE Bock, GR Goode, JA TI Stable light isotope biogeochemistry of hydrothermal systems SO EVOLUTION OF HYDROTHERMAL ECOSYSTEMS ON EARTH (AND MARS?) SE CIBA FOUNDATION SYMPOSIA LA English DT Article; Proceedings Paper CT Symposium on Evolution of Hydrothermal Ecosystems on Earth (and Mars) CY JAN 30-FEB 01, 1996 CL CIBA FDN, LONDON, ENGLAND SP Ciba Fdn HO CIBA FDN ID YELLOWSTONE-NATIONAL-PARK; OXYGEN ISOTOPE; CARBON ISOTOPES; ORE-DEPOSITS; FLUID INCLUSION; SOUTH-AFRICA; SULFUR; FRACTIONATION; SULFIDE; ENVIRONMENTS AB The stable isotopic composition of the elements O, H, S and C in minerals and other chemical species can indicate the existence, extent, conditions and the processes (including biological activity) of hydrothermal systems. Hydrothermal alteration of the O-18/O-16 and D/H values of minerals can be used to detect fossil systems and delineate their areal extent. Water-rock interactions create isotopic signatures which indicate fluid composition, temperature, water-rock ratios, etc. The O-18/O-16 values of silica and carbonate deposits tend to increase with declining temperature and thus help to map thermal gradients. Measurements of D/H values can help to decipher the origin(s) of hydrothermal fluids. The S-34/S-32 and C-13/C-12 values of fluids and minerals reflect the origin of the S and C as well as oxygen fugacities and key redox processes. For example, a wide range of S-34/S-32 values which are consistent with equilibration below 100 degrees C between sulfide and sulfate can be attributed to sulfur metabolizing bacteria. Depending on its magnitude, the difference in the C-13/C-12 value of CO2 and carbonates versus organic carbon might be attributed either to equilibrium at hydrothermal temperatures or, if the difference exceeds 1% (10 parts per thousand), to organic biosynthesis. Along the thermal gradients of thermal spring outflows, the C-13/C-12 value of carbonates and C-13-depleted microbial organic carbon increases, principally due to the outgassing of relatively C-13-depleted CO2. RP DesMarais, DJ (reprint author), NASA, AMES RES CTR, DIV SPACE SCI, MOFFETT FIELD, CA 94035 USA. NR 48 TC 3 Z9 3 U1 2 U2 3 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, WEST SUSSEX, ENGLAND SN 0300-5208 BN 0-471-96509-X J9 CIBA F SYMP PY 1996 VL 202 BP 83 EP 98 PG 16 WC Biology; Medicine, General & Internal SC Life Sciences & Biomedicine - Other Topics; General & Internal Medicine GA BG79F UT WOS:A1996BG79F00006 PM 9243011 ER PT S AU Cady, SL Farmer, JD AF Cady, SL Farmer, JD BE Bock, GR Goode, JA TI Fossilization processes in siliceous thermal springs: Trends in preservation along thermal gradients SO EVOLUTION OF HYDROTHERMAL ECOSYSTEMS ON EARTH (AND MARS?) SE CIBA FOUNDATION SYMPOSIA LA English DT Article; Proceedings Paper CT Symposium on Evolution of Hydrothermal Ecosystems on Earth (and Mars) CY JAN 30-FEB 01, 1996 CL CIBA FDN, LONDON, ENGLAND SP Ciba Fdn HO CIBA FDN ID SCOTLAND; RHYNIE AB To enhance our ability to extract palaeobiological and palaeoenvironmental information from ancient thermal spring deposits, we have studied the processes responsible for the development and preservation of stromatolites in modern subaerial thermal spring systems in Yellowstone National Park (USA). We investigated specimens collected from silica-depositing thermal springs along the thermal gradient using petrographic techniques and scanning electron microscopy. Although it is known that thermophilic cyanobacteria control the morphogenesis of thermal spring stromatolites below 73 degrees C, we have found that biofilms which contain filamentous thermophiles contribute to the microstructural development of subaerial geyserites that occur along the inner rims of thermal spring pools and geyser effluents. Biofilms intermittently colonize the surfaces of subaerial geyserites and provide a favoured substrate for opaline silica precipitation. We have also found that the preservation of biotically produced microfabrics of thermal spring sinters reflects dynamic balances between rates of population growth, decomposition of organic matter, silica deposition and early diagenesis. Major trends in preservation of thermophilic organisms along the thermal gradient are defined by differences in the mode of fossilization, including replacement, encrustation and permineralization. RP Cady, SL (reprint author), NASA, AMES RES CTR, MS 239-4, MOFFETT FIELD, CA 94035 USA. NR 27 TC 126 Z9 130 U1 0 U2 7 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, WEST SUSSEX, ENGLAND SN 0300-5208 BN 0-471-96509-X J9 CIBA F SYMP PY 1996 VL 202 BP 150 EP 173 PG 24 WC Biology; Medicine, General & Internal SC Life Sciences & Biomedicine - Other Topics; General & Internal Medicine GA BG79F UT WOS:A1996BG79F00010 PM 9243015 ER PT S AU Summons, RE Jahnke, LL Simoneit, BRT AF Summons, RE Jahnke, LL Simoneit, BRT BE Bock, GR Goode, JA TI Lipid biomarkers for bacterial ecosystems: Studies of cultured organisms, hydrothermal environments and ancient sediments SO EVOLUTION OF HYDROTHERMAL ECOSYSTEMS ON EARTH (AND MARS?) SE CIBA FOUNDATION SYMPOSIA LA English DT Article; Proceedings Paper CT Symposium on Evolution of Hydrothermal Ecosystems on Earth (and Mars) CY JAN 30-FEB 01, 1996 CL CIBA FDN, LONDON, ENGLAND SP Ciba Fdn HO CIBA FDN ID HOT-SPRING ENVIRONMENTS; CYANOBACTERIAL MATS; BIOGEOCHEMISTRY; CARBON; MATTER; RECORD AB This paper forms part of our long-term goal of using molecular structure and carbon isotopic signals preserved as hydrocarbons in ancient sediments to improve understanding of the early evolution of Earth's surface environment. We are particularly concerned with biomarkers which are informative about aerobiosis. Here, we combine bacterial biochemistry with the organic geochemistry of contemporary and ancient hydrothermal ecosystems to construct models for the nature, behaviour and preservation potential of primitive microbial communities. We use a combined molecular and isotopic approach to characterize lipids produced by cultured bacteria and test a variety of culture conditions which affect their biosynthesis. This information is then compared with lipid mixtures isolated from contemporary hot springs and evaluated for the kinds of chemical change that would accompany burial and incorporation into the sedimentary record. in this study we have shown that growth temperature does not appear to alter isotopic fractionation within the lipid classes produced by a methanotropic bacterium. We also found that cultured cyanobacteria biosynthesize diagnostic methylalkanes and dimethylalkanes with the latter only made when growing under low pCO(2). In an examination of a microbial mat sample from Octopus Spring, Yellowstone National park (USA), we could readily identify chemical structures with C-13 contents which were diagnostic for the phototrophic organisms such as cyanobacteria and Cbloroflexus. We could not, however, find molecular evidence for operation of a methane cycle in the particular mat samples we studied. C1 NASA, AMES RES CTR, EXOBIOL BRANCH, MOFFETT FIELD, CA 94035 USA. OREGON STATE UNIV, COLL OCEAN & ATMOSPHER SCI, CORVALLIS, OR 97331 USA. RP Summons, RE (reprint author), AUSTRALIAN GEOL SURVEY ORG, GPO BOX 378, CANBERRA, ACT 2601, AUSTRALIA. RI SIMONEIT, BERND/A-2008-2013 NR 35 TC 43 Z9 43 U1 0 U2 8 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, WEST SUSSEX, ENGLAND SN 0300-5208 BN 0-471-96509-X J9 CIBA F SYMP PY 1996 VL 202 BP 174 EP 194 PG 21 WC Biology; Medicine, General & Internal SC Life Sciences & Biomedicine - Other Topics; General & Internal Medicine GA BG79F UT WOS:A1996BG79F00011 PM 9243016 ER PT S AU Farmer, JD AF Farmer, JD BE Bock, GR Goode, JA TI Hydrothermal systems on Mars: An assessment of present evidence SO EVOLUTION OF HYDROTHERMAL ECOSYSTEMS ON EARTH (AND MARS?) SE CIBA FOUNDATION SYMPOSIA LA English DT Article; Proceedings Paper CT Symposium on Evolution of Hydrothermal Ecosystems on Earth (and Mars) CY JAN 30-FEB 01, 1996 CL CIBA FDN, LONDON, ENGLAND SP Ciba Fdn HO CIBA FDN ID SNC METEORITES; GROUND ICE; EVOLUTION; WATER; DEPOSITS; VALLEYS; CLIMATE; ORIGIN; MODEL; CLUES AB Hydrothermal processes have been suggested to explain a number of observations for Mars, including D/H ratios of water extracted from Martian meteorites, as a means for removing CO2 from the Martian atmosphere and sequestering it in the crust as carbonates, and as a possible origin for iron oxide-rich spectral units on the floors of some rifted basins (chasmata). There are numerous examples of Martian channels formed by discharges of subsurface water near potential magmatic heat sources, and hydrothermal processes have also been proposed as a mechanism for aquifer recharge needed to sustain long term erosion of sapping channels. The following geological settings have been identified as targets for ancient hydrothermal systems on Mars: channels located along the margins of impact crater melt sheets and on the slopes of ancient volcanoes; chaotic and fretted terranes where shallow subsurface heat sources are thought to have interacted with ground ice; and the floors of calderas and rifted basins (e.g. chasmata). On Earth, such geological environments are often a locus for hydrothermal mineralization. But we presently lack the mineralogical information needed fora definitive evaluation of hypotheses. A preferred tool for identifying minerals by remote sensing methods on Earth is high spatial resolution, hyperspectral, near-infrared spectroscopy, a technique that has been extensively developed by mineral explorationists. Future efforts to explore Mars for ancient hydrothermal systems would benefit from the application of methods developed by the mining industry to look for similar deposits on Earth. But Earth-based exploration models must be adapted to account for the large differences in the climatic and geological history of Mars. For example, it is likely that the early surface environment of Mars was coal, perhaps consistently below freezing, with the shallow portions of hydrothermal systems being dominated by magma-cryosphere interactions. Given the smaller gravitational held declining atmospheric pressure, and widespread, permeable megaregolith on Mars, volatile outgassing and magmatic cooling would have been more effective than on Earth. Thus, hydrothermal systems are likely to have had much lower average surface temperatures than comparable geological settings on Earth. The likely predominance of basaltic crust on Mars suggests that hydrothermal fluids and associated deposits should be enriched in Fe, Mg, Si and Ca, with surficial deposits being dominated by lower temperature, mixed iron oxide and carbonate mineralogies. RP Farmer, JD (reprint author), NASA, AMES RES CTR, MS 239-4, MOFFETT FIELD, CA 94035 USA. NR 52 TC 46 Z9 48 U1 0 U2 2 PU JOHN WILEY & SONS LTD PI CHICHESTER PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, WEST SUSSEX, ENGLAND SN 0300-5208 BN 0-471-96509-X J9 CIBA F SYMP PY 1996 VL 202 BP 273 EP 299 PG 27 WC Biology; Medicine, General & Internal SC Life Sciences & Biomedicine - Other Topics; General & Internal Medicine GA BG79F UT WOS:A1996BG79F00018 PM 9243021 ER PT S AU Mather, JC AF Mather, JC BE Kafatos, M Kondo, Y TI Measurement and implications of the cosmic microwave background spectrum SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID EXPLORER COBE; RADIATION; RADIOMETERS; TEMPERATURE; DESIGN; GRAINS; DEWAR AB The Cosmic Background Explorer (COBE) was developed by NASA Goddard Space Flight Center to measure the diffuse infrared and microwave radiation from the early universe. It also measured emission from nearby sources such as the stars, dust, molecules, atoms, ions, and electrons in the Milky Way, and dust and comets in the Solar System. It was launched 18 November 1989 on a Delta rocket, carrying one microwave instrument and two cryogenically cooled infrared instruments. The Far Infrared Absolute Spectrophotometer (FIRAS) mapped the sky at wavelengths from 0.01 to 1 cm, and compared the CMBR to a precise blackbody. The spectrum of the CMBR differs from a blackbody by less than 0.03%. The Differential Microwave Radiometers (DMR) measured the fluctuations in the CMBR originating in the Big Bang, with a total amplitude of 11 parts per million on a 10 degrees scale. These fluctuations are consistent with scale-invariant primordial fluctuations. The Diffuse Infrared Background Experiment (DIRBE) spanned the wavelength range from 1.2 to 240 mu m and mapped the sky at a wide range of solar elongation angles to distinguish foreground sources from a possible extragalactic Cosmic Infrared Background Radiation (CIBR). In this paper we summarize the COBE mission and describe the results from the FIRAS instrument. The results from the DMR and DIRBE were described by Smoot and Hauser at this Symposium. RP Mather, JC (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 685,GREENBELT,MD 20771, USA. NR 48 TC 0 Z9 0 U1 0 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 17 EP 29 PG 13 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00003 ER PT S AU Hauser, MG AF Hauser, MG BE Kafatos, M Kondo, Y TI The COBE DIRBE search for the cosmic infrared background SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID SKY; SPECTRUM; COUNTS; MODEL AB The Diffuse Infrared Background Experiment (DIRBE) on the Cosmic Background Explorer (COBE) satellite is designed to conduct a sensitive search for isotropic cosmic infrared background radiation over the spectral range from 1.25 to 240 mu m. The cumulative emissions of pregalactic, protogalactic, and evolving galactic systems are expected to be recorded in this background. The DIRBE instrument has mapped the full sky with high redundancy at solar elongation angles ranging from 64 degrees to 124 degrees to facilitate separation of interplanetary, Galactic, and extragalactic sources of emission. Conservative limits on the isotropic infrared background are given by the minimum observed sky brightnesses in each DIRBE spectral band during the 10 months of cryogenic operation. Extensive modeling of the foregrounds is under way to isolate or strongly limit the extragalactic infrared component. The current approach to these modeling efforts is described and representative present residuals are reported. RP Hauser, MG (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 680,GREENBELT,MD 20771, USA. NR 41 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 99 EP 108 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00011 ER PT S AU Sreekumar, P Kniffen, DA AF Sreekumar, P Kniffen, DA BE Kafatos, M Kondo, Y TI Diffuse gamma rays of galactic and extragalactic origin: Preliminary results from egret SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID LARGE MAGELLANIC CLOUD; COSMIC-RAY; MILKY-WAY; RADIATION; GALAXY; PULSAR; EMISSION AB The all-sky survey in high energy gamma rays (E>30 MeV) carried out by the Energetic Gamma Ray Experiment Telescope (EGRET) aboard the Compton Gamma Ray Observatory provides for the first time an opportunity to examine in detail diffuse gamma-ray emission of extragalactic origin. The observed diffuse emission at high galactic latitudes is generally assumed to have a galactic component arising from cosmic-ray interactions with the local interstellar gas and radiation, in addition to an isotropic component presumably of extragalactic origin. The galactic component can be estimated from a model of the interstellar medium and cosmic-ray distribution. Since the derived extragalactic spectrum depends very much on the success of our galactic model, the consistency of the galactic diffuse emission model is examined both spectrally and spatially with existing EGRET observations. In conjunction with this model, EGRET observations of the high latitude emission are used to examine the flux and spectrum of the residual extragalactic emission. This residual emission could be either truly diffuse in origin or could arise from accumulated emission from unresolved sources particularly in the Light of EGRET observations showing the presence of numerous gamma-ray bright active galactic nuclei. C1 HAMPDEN SYDNEY COLL,HAMPDEN SYDNEY,VA 23943. RP Sreekumar, P (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 30 TC 1 Z9 1 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 279 EP 288 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00029 ER PT S AU Turner, MS AF Turner, MS BE Kafatos, M Kondo, Y TI The hot big band and beyond SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID COLD DARK-MATTER; MINIMAL ISOCURVATURE MODEL; PECULIAR VELOCITY-FIELD; INFLATIONARY UNIVERSE; IRAS GALAXIES; SCALE; ANISOTROPY; PERTURBATION; CLUSTERS; SCENARIO AB The hot big-bang cosmology provides a reliable accounting of the Universe from about 10(-2) sec after the bang until the present, as well as a robust framework for speculating back to times as early as 10(-43) sec. Cosmology faces a number of important challenges; foremost among them are determining the quantity and composition of matter in the Universe and developing a detailed and coherent picture of how structure (galaxies, clusters of galaxies, superclusters, voids, great walls, and so on) developed. At present there is a working hypothesis-cold dark matter-which is based upon inflation and which, if correct, would extend the big bang model back to 10(-32) sec and cast important light on the unification of the forces. Many experiments and observations, from CBR anisotropy experiments to Hubble Space Telescope observations to experiments at Fermilab and CERN, are now putting the cold dark matter theory to the test. At present it appears that the theory is viable only if the Hubble constant is smaller than current measurements indicate (around 30 km s(-1) Mpc(-1)), or if the theory is modified slightly, e.g., by the addition of a cosmological constant, a small admixture of hot dark matter (5 eV ''worth of neutrinos''), more relativistic particles, or a tilted spectrum of density perturbations. C1 UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637. FERMILAB NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510. RP Turner, MS (reprint author), UNIV CHICAGO,ENRICO FERMI INST,DEPT PHYS,CHICAGO,IL 60637, USA. NR 58 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 301 EP 320 PG 20 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00031 ER PT S AU Frieman, JA AF Frieman, JA BE Kafatos, M Kondo, Y TI Inflation, microwave background anisotropy, and open universe models SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID COSMOLOGICAL PERTURBATIONS; PREINFLATIONARY UNIVERSE; RADIO GALAXY; CLUSTERS; REDSHIFT; REMNANTS RP Frieman, JA (reprint author), FERMILAB NATL ACCELERATOR LAB,NASA,FERMILAB ASTROPHYS CTR,BATAVIA,IL 60510, USA. NR 35 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 321 EP 327 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00032 ER PT S AU Kondo, Y AF Kondo, Y BE Kafatos, M Kondo, Y TI Major unsolved problems of cosmology - Panel discussion SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union RP Kondo, Y (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 21044, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 399 EP 400 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00037 ER PT S AU Mather, JC AF Mather, JC BE Kafatos, M Kondo, Y TI Future cosmic microwave and cosmic infrared background measurements SO EXAMINING THE BIG BANG AND DIFFUSE BACKGROUND RADIATIONS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 168th Symposium of the International-Astronomical-Union on Examining the Big Bang and Diffuse Background Radiations CY AUG 23-26, 1994 CL THE HAGUE, NETHERLANDS SP Int Astron Union ID RADIOMETER AB Cosmic microwave and infrared background radiation (CMBR and CIBR) measurements in the near future have the potential to greatly advance our knowledge of the early universe. New instrument and space technology will soon enable much better measurements of both. RP Mather, JC (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 685,GREENBELT,MD 20771, USA. NR 7 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-3814-6 J9 IAU SYMP PY 1996 IS 168 BP 419 EP 421 PG 3 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE78H UT WOS:A1996BE78H00040 ER PT J AU Schuck, DJ Chen, JJG AF Schuck, DJ Chen, JJG TI Development of a real time extravehicular mobility unit telemetry monitoring expert system SO EXPERT SYSTEMS WITH APPLICATIONS LA English DT Article AB The objective of this study is to develop a real time expert system to assist ground controllers with the task of monitory telemetry associated with NASA's Extravehicular Mobility Unit (EMU). During Extravehicular Activity (EVA), ground controllers closely monitor this telemetry and respond to anomalous performance should it occur The system is capable of automatically evaluating system performance and providing context sensitive assistance if requested by the use,: The system includes the following modules: expert system module, database module, EMU simulator module, display and computation module, and user interface module. The system was developed under the Visual BASIC and EXSYS Professional environments. The system enhances monitoring capabilities by utilizing the preflight performance data collected on each EMU, examining trends in certain parameters, and consistently monitoring each set of incoming telemetry. Human experts have examined simulated EMU telemetry containing abnormal performance indications both with and without the system. The resulting comments and opinions received, combined with measurements of their performance, provide insight into the overall system performance and usability. C1 UNIV HOUSTON,DEPT IND ENGN,HOUSTON,TX 77204. RP Schuck, DJ (reprint author), NASA,JOHNSON SPACE CTR,EVA SECT,HOUSTON,TX 77058, USA. NR 13 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 0957-4174 J9 EXPERT SYST APPL JI Expert Syst. Appl. PY 1996 VL 10 IS 2 BP 165 EP 171 DI 10.1016/0957-4174(95)00043-7 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Operations Research & Management Science SC Computer Science; Engineering; Operations Research & Management Science GA TV903 UT WOS:A1996TV90300001 ER PT S AU Lovell, JEJ Tingay, SJ Edwards, PG Jauncey, DL Preston, RA AF Lovell, JEJ Tingay, SJ Edwards, PG Jauncey, DL Preston, RA BE Ekers, R Fanti, C Padrielli, L TI VLBI observations of southern egret identifications SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union C1 AUSTRALIAN NATL UNIV,MT STROMLO & SIDING SPRING OBSERV,WESTON,ACT 2611,AUSTRALIA. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. CALTECH,JET PROP LAB,PASADENA,CA 91109. RP Lovell, JEJ (reprint author), UNIV TASMANIA,DEPT PHYS,HOBART,TAS 7001,AUSTRALIA. RI Tingay, Steven/B-5271-2013 NR 2 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 19 EP 20 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00006 ER PT S AU Preston, RA Tingay, SJ Jauncey, DL Reynolds, JE Lovell, JEJ McCulloch, PM Tzioumis, AK Costa, ME Murphy, DW Meier, DL Jones, DL Clay, RW Edwards, PG Ellingsen, SP Ferris, RH Gough, RG Harbison, P Jones, PA King, EA Kemball, AJ Migenes, V Nicolson, GD Sinclair, MW vanOmmen, TD Wark, RM White, GL AF Preston, RA Tingay, SJ Jauncey, DL Reynolds, JE Lovell, JEJ McCulloch, PM Tzioumis, AK Costa, ME Murphy, DW Meier, DL Jones, DL Clay, RW Edwards, PG Ellingsen, SP Ferris, RH Gough, RG Harbison, P Jones, PA King, EA Kemball, AJ Migenes, V Nicolson, GD Sinclair, MW vanOmmen, TD Wark, RM White, GL BE Ekers, R Fanti, C Padrielli, L TI Monitoring the jet in Centaurus A at 0.1 parsec resolution SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union AB Centaurus A is the closest active extragalactic radio source, at a distance of approximately 3.5 Mpc, and is identified with the peculiar elliptical galaxy NGC 5128. As such it is a very important target for observations of the small-scale (sub-parsec) and large-scale (kpc) structures in extragalactic jets. Here we present Mk-II VLBI observations made at 8.4 GHz over a 4.3 year period from early 1991 until mid-1995, as well as a 4.8 GHz observation that was co-eval with one of the 8.4 GHz observations. All of the observations were made with the SHEVE array except for the last observation which was made with the VLBA. The dual-frequency observations identify the core of the radio source, while the multi-epoch observations show the complex structural evolution at a resolution of 0.1 pc. Subluminal motion of approximate to 0.15c is evident. Structural changes are observed on time scales shorter than four months. C1 MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT,AUSTRALIA. AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. UNIV TASMANIA,HOBART,TAS,AUSTRALIA. UNIV WESTERN AUSTRALIA,NEDLANDS,WA 6009,AUSTRALIA. UNIV ADELAIDE,ADELAIDE,SA,AUSTRALIA. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. UNIV WESTERN SYDNEY,KINGSWOOD,NSW,AUSTRALIA. BRITISH AEROSP AUSTRALIA,CANBERRA,ACT,AUSTRALIA. HARTEBEESTHOEK RADIO ASTR OBS,KRUGERSDORP,SOUTH AFRICA. RP Preston, RA (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA, USA. RI Tingay, Steven/B-5271-2013; King, Edward/A-1473-2012; Migenes, Victor/F-3157-2015 OI King, Edward/0000-0002-6898-2130; Migenes, Victor/0000-0002-7990-2191 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 21 EP 22 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00007 ER PT S AU Jones, DL Tingay, SJ Preston, RA Jauncey, DL Reynolds, JE Lovell, JEJ McCulloch, PM Tzioumis, AK Costa, ME Murphy, DW Meier, DL Clay, RW Edwards, PG Ellingsen, SP Ferris, RH Gough, RG Harbison, P Jones, PA King, EA Kemball, AJ Migenes, V Nicolson, GD Sinclair, MW vanOmmen, TD Wark, RM White, GL AF Jones, DL Tingay, SJ Preston, RA Jauncey, DL Reynolds, JE Lovell, JEJ McCulloch, PM Tzioumis, AK Costa, ME Murphy, DW Meier, DL Clay, RW Edwards, PG Ellingsen, SP Ferris, RH Gough, RG Harbison, P Jones, PA King, EA Kemball, AJ Migenes, V Nicolson, GD Sinclair, MW vanOmmen, TD Wark, RM White, GL BE Ekers, R Fanti, C Padrielli, L TI A counterjet in the nucleus of Centaurus A SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union ID NGC-1275; PROBE AB Centaurus A (NGC 5128) is the nearest giant radio galaxy. It is a Fanaroff-Riley type 1 (low luminosity) radio source, but the compact radio source in the nucleus is strong enough that VLBI imaging has been possible with both the SHEVE array and the VLBA at several frequencies. These observations have detected a sub-parsec scale counterjet. This shows that jet formation in at least some FR I sources is intrinsically two-sided over very small distances and the radio jets in Centaurus A are probably only moderately relativistic. We also find evidence that the center of activity in Centaurus A is partially obscured by a disk or torus of dense plasma. C1 MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT,AUSTRALIA. AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. UNIV TASMANIA,HOBART,TAS,AUSTRALIA. UNIV WESTERN AUSTRALIA,NEDLANDS,WA 6009,AUSTRALIA. UNIV ADELAIDE,ADELAIDE,SA,AUSTRALIA. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. BRITISH AEROSP AUSTRALIA,CANBERRA,ACT,AUSTRALIA. UNIV WESTERN SYDNEY,KINGSWOOD,NSW,AUSTRALIA. HARTEBEESTHOEK RADIO ASTR OBS,KRUGERSDORP,SOUTH AFRICA. RP Jones, DL (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA, USA. RI Tingay, Steven/B-5271-2013; King, Edward/A-1473-2012; Migenes, Victor/F-3157-2015 OI King, Edward/0000-0002-6898-2130; Migenes, Victor/0000-0002-7990-2191 NR 5 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 23 EP 24 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00008 ER PT S AU Tzioumis, A Morganti, R Tadhunter, C Dickson, R Fanti, C Dallacasa, D Reynolds, J Jauncey, D Preston, R McCulloch, P King, E Tingay, S Edwards, P Costa, M Jones, D Lovell, J Clay, R Meier, D Murphy, D Gough, R Ferris, R White, G Jones, P AF Tzioumis, A Morganti, R Tadhunter, C Dickson, R Fanti, C Dallacasa, D Reynolds, J Jauncey, D Preston, R McCulloch, P King, E Tingay, S Edwards, P Costa, M Jones, D Lovell, J Clay, R Meier, D Murphy, D Gough, R Ferris, R White, G Jones, P BE Ekers, R Fanti, C Padrielli, L TI High-resolution structure of southern compact steep spectrum sources SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union C1 CNR,IST RADIOASTRON,I-40126 BOLOGNA,ITALY. UNIV SHEFFIELD,DEPT PHYS,SHEFFIELD,S YORKSHIRE,ENGLAND. CALTECH,JET PROP LAB,PASADENA,CA. UNIV TASMANIA,HOBART,TAS,AUSTRALIA. MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT,AUSTRALIA. UNIV ADELAIDE,ADELAIDE,SA,AUSTRALIA. UNIV WESTERN SYDNEY,KINGSWOOD,NSW,AUSTRALIA. RP Tzioumis, A (reprint author), CSIRO,AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. RI Tingay, Steven/B-5271-2013; King, Edward/A-1473-2012 OI King, Edward/0000-0002-6898-2130 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 73 EP 74 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00028 ER PT S AU King, EA McCulloch, PM Jauncey, DL Reynolds, JE Preston, RA Meier, DL Murphy, DW Tzioumis, AK Lovell, JEJ VanOmmen, TD Jones, DL AF King, EA McCulloch, PM Jauncey, DL Reynolds, JE Preston, RA Meier, DL Murphy, DW Tzioumis, AK Lovell, JEJ VanOmmen, TD Jones, DL BE Ekers, R Fanti, C Padrielli, L TI A single baseline VLBI survey of southern peaked spectrum sources SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union C1 UNIV TASMANIA,HOBART,TAS,AUSTRALIA. CALTECH,JET PROP LAB,PASADENA,CA. RP King, EA (reprint author), CSIRO,AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. RI King, Edward/A-1473-2012 OI King, Edward/0000-0002-6898-2130 NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 75 EP 76 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00029 ER PT S AU Gelderman, R AF Gelderman, R BE Ekers, R Fanti, C Padrielli, L TI NLR kinematics in CSS radio sources SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union ID GALAXIES RP Gelderman, R (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,NATL RES COUNCIL,CODE 681,GREENBELT,MD 20771, USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 81 EP 82 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00032 ER PT S AU Perlman, ES Carilli, CL Stocke, JT Conway, J AF Perlman, ES Carilli, CL Stocke, JT Conway, J BE Ekers, R Fanti, C Padrielli, L TI PKS 1413+135: A very young radio galaxy SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union C1 UNIV COLORADO,CTR ASTROPHYS & SPACE ASTRON,BOULDER,CO 80309. ONSALA SPACE OBSERV,S-43992 ONSALA,SWEDEN. CFA,CAMBRIDGE,MA 02138. RP Perlman, ES (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,USRA,MAIL CODE 6602,GREENBELT,MD 20771, USA. OI Perlman, Eric/0000-0002-3099-1664 NR 12 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 90 EP 91 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00036 ER PT S AU Ros, E Marcaide, JM Guirado, JC Krichbaum, TP Preston, RA Ratner, MI Shapiro, II Witzel, A AF Ros, E Marcaide, JM Guirado, JC Krichbaum, TP Preston, RA Ratner, MI Shapiro, II Witzel, A BE Ekers, R Fanti, C Padrielli, L TI High precision astrometry over large angular scales with closure constraints: The triplet 1803+784/1928+738/2007+777 SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. MAX PLANCK INST RADIOASTRON,D-53121 BONN,GERMANY. HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138. RP Ros, E (reprint author), UNIV VALENCIA,DEPT ASTRON,DR MOLINER 50,E-46100 BURJASSOT,VALENCIA,SPAIN. NR 7 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 120 EP 121 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00048 ER PT S AU Tingay, SJ Jauncey, DL Preston, RA Meier, DL Reynolds, JE Tzioumis, AK Lovell, J Jones, DL McCulloch, PM Murphy, DW Nicolson, GD AF Tingay, SJ Jauncey, DL Preston, RA Meier, DL Reynolds, JE Tzioumis, AK Lovell, J Jones, DL McCulloch, PM Murphy, DW Nicolson, GD BE Ekers, R Fanti, C Padrielli, L TI VLBI observations of low-redshift radio galaxies SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union ID PKS 0521-36 C1 AUSTRALIA TELESCOPE NATL FACIL,EPPING,NSW 2121,AUSTRALIA. CALTECH,JET PROP LAB,PASADENA,CA 91109. UNIV TASMANIA,HOBART,TAS 7001,AUSTRALIA. HRAO,ZA-1740 KRUGERSDORP,SOUTH AFRICA. RP Tingay, SJ (reprint author), MT STROMLO & SIDING SPRING OBSERV,CANBERRA,ACT 2611,AUSTRALIA. RI Tingay, Steven/B-5271-2013 NR 6 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 129 EP 130 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00052 ER PT S AU Meier, DL Payne, DG Lind, KR AF Meier, DL Payne, DG Lind, KR BE Ekers, R Fanti, C Padrielli, L TI The production of jets from magnetized accretion disks: Simulation of the Blandford-Payne mechanism SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union AB We have used massively parallel supercomputer simulations to perform an extensive study of a plausible mechanism for producing the jets seen in extragalactic radio sources - acceleration and collimation by coronal magnetic fields in an accretion disk orbiting a central black hole. We find that such disks can propel jets for a wide range of coronal conditions. The terminal jet velocity is a strong function of the magnetic field equatorial component. Acceleration and collimation are produced by a tight azimuthal field coil generated in the corona, rather than by a stiff poloidal field extending to large distances. The jets are pressure-confined when the external medium pressure is high, but magnetically-confine when it is low. C1 INTEL SCALABLE SYST DIV,PASADENA,CA. CRAY RES INC,LIVERMORE,CA. RP Meier, DL (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 433 EP 434 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00152 ER PT S AU Murphy, DW AF Murphy, DW BE Ekers, R Fanti, C Padrielli, L TI Imaging of extragalactic radio sources with the VSOP space VLBI mission SO EXTRAGALACTIC RADIO SOURCES SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 175th Symposium of the International-Astronomical-Union on Extragalactic Radio Sources CY OCT 10-14, 1995 CL BOLOGNA, ITALY SP Int Astron Union AB In September 1996 the first dedicated VLBI spacecraft, VSOP, will be launched. This Japanese spacecraft operating in conjunction with ground-based VLBI arrays such as the EVN or VLBA will enable observers to routinely undertake VLBI observations with maximum baseline lengths of 2.6 Earth diameters and a resolution of 55 mu as at the highest operating frequency of 22 GHz. In this paper we present a brief overview of the imaging capability of the VSOP mission together with an example of an imaging simulation. RP Murphy, DW (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0074-1809 BN 0-7923-4121-X J9 IAU SYMP PY 1996 IS 175 BP 531 EP 532 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG55R UT WOS:A1996BG55R00192 ER PT B AU Gary, CK Rubin, J AF Gary, CK Rubin, J BE DePaula, RP Berthold, JW TI Wavelength coded fiber optic sensors for verification of identity SO FIBER OPTIC AND LASER SENSORS XIV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Fiber Optic and Laser Sensors XIV CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE fiber Bragg gratings; fiber optic sensors; key; security system C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2227-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2839 BP 34 EP 39 DI 10.1117/12.255371 PG 6 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG61B UT WOS:A1996BG61B00004 ER PT B AU Cofer, WR Winstead, EL Stocks, BJ Cahoon, DR Goldammer, JG Levine, JS AF Cofer, WR Winstead, EL Stocks, BJ Cahoon, DR Goldammer, JG Levine, JS BE Goldammer, JG Furyeav, VV TI Composition of smoke from North American boreal forest fires SO FIRE IN ECOSYSTEMS OF BOREAL EURASIA SE FORESTRY SCIENCES LA English DT Proceedings Paper CT International Scientific Conference on Fire in Ecosystems of Boreal Eurasia CY JUN-JUL -, 1993 CL RUSSIAN ACAD SCI KRASNOYARSK, FOREST FIRE LAB, KRASNOYARSK, RUSSIA SP VOLKSWAGEN Fdn HO RUSSIAN ACAD SCI KRASNOYARSK, FOREST FIRE LAB C1 NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23681. NR 0 TC 13 Z9 13 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 0-7923-4137-6 J9 FOR SCI PY 1996 VL 48 BP 465 EP 475 PG 11 WC Ecology; Forestry SC Environmental Sciences & Ecology; Forestry GA BG15K UT WOS:A1996BG15K00042 ER PT J AU Lang, KL Almeida, FP Bolz, GR Fahay, MP AF Lang, KL Almeida, FP Bolz, GR Fahay, MP TI The use of otolith microstructure in resolving issues of first year growth and spawning seasonality of white hake, Urophycis tenuis, in the Gulf of Maine Georges Bank region SO FISHERY BULLETIN LA English DT Article ID LARVAE C1 NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES SCI CTR,JJ HOWARD LAB,HIGHLANDS,NJ 07732. RP Lang, KL (reprint author), NOAA,NATL MARINE FISHERIES SERV,NE FISHERIES SCI CTR,WOODS HOLE LAB,WOODS HOLE,MA 02543, USA. NR 22 TC 5 Z9 5 U1 0 U2 3 PU NATL MARINE FISHERIES SERVICE SCIENTIFIC PUBL OFFICE PI SEATTLE PA 7600 SAND POINT WAY NE BIN C15700, SEATTLE, WA 98115 SN 0090-0656 J9 FISH B-NOAA JI Fish. Bull. PD JAN PY 1996 VL 94 IS 1 BP 170 EP 175 PG 6 WC Fisheries SC Fisheries GA TR735 UT WOS:A1996TR73500016 ER PT B AU Stainback, PC Nagabushana, KA AF Stainback, PC Nagabushana, KA BE Chen, CJ Shih, C Lienau, J Kung, RJ TI Possible solution techniques for the mean square equation applicable to the constant current anemometer in subsonic compressible flow SO FLOW MODELING AND TURBULENCE MEASURMENTS VI LA English DT Proceedings Paper CT 6th International Symposium on Flow Modeling and Turbulence Measurements CY SEP 08-10, 1996 CL TALLAHASSEE, FL SP Florida State Univ, Coll Engn, Florida A&M Univ, Coll Engn, Int Assoc Hydraul Res, Japan Cent Res Inst Elect Power Ind, Amer Soc Civil Engineers AB Theory for the application of Constant Current Anemometry to compressible flows was developed in the 1950's. The Constant Current Anemometer (CCA) was successfully used to measure mass flow and total temperature fluctuations in supersonic flows where the velocity and density sensitivities of the heated wire were found to be equal. The extended application of the CCA to measure fluctuations in subsonic compressible flow is complicated by the fact that for many cases, the velocity and density sensitivities are unequal. This results in the mean square equation being a single equation with six unknowns. To date no suitable solutions to this equation ore known to the authors. A discussion of problems associates with the mean square equation is noted, requirements fora solution is developed, and possible methods for solutions are presented. RP Stainback, PC (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU A A BALKEMA PI ROTTERDAM PA PO BOX 1675, 3000 BR ROTTERDAM, NETHERLANDS BN 90-5410-826-6 PY 1996 BP 217 EP 225 PG 9 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA BH09B UT WOS:A1996BH09B00026 ER PT B AU Fung, I AF Fung, I BE Apps, MJ Price, DT TI The global carbon cycle and the atmospheric record: ''The problem definition'' SO FOREST ECOSYSTEMS, FOREST MANAGEMENT AND THE GLOBAL CARBON CYCLE SE NATO ADVANCED SCIENCE INSTITUTE SERIES, SERIES I, GLOBAL ENVIRONMENT CHANGE LA English DT Proceedings Paper CT NATO Advanced Research Workshop on the Role of Global Forest Ecosystems and Forest Resource Management in the Global Cycle CY SEP 12-16, 1994 CL BANFF, CANADA SP NATO C1 NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025. NR 0 TC 4 Z9 4 U1 1 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN 33 PA HEIDELBERGER PLATZ 3, W-1000 BERLIN 33, GERMANY BN 3-540-60684-X J9 NATO ASI SER SER I PY 1996 VL 40 BP 25 EP 34 PG 10 WC Ecology; Forestry SC Environmental Sciences & Ecology; Forestry GA BF93A UT WOS:A1996BF93A00002 ER PT S AU Miner, PS Leathrum, JF AF Miner, PS Leathrum, JF BE Srivas, M Camilleri, A TI Verification of IEEE compliant subtractive division algorithms SO FORMAL METHODS IN COMPUTER-AIDED DESIGN SE Lecture Notes in Computer Science LA English DT Article; Proceedings Paper CT 1st International Conference on Formal Methods in Computer-Aided Design (FMCAD 96) CY NOV 06-08, 1996 CL PALO ALTO, CA AB A parameterized definition of subtractive floating point division algorithms is presented and verified using PVS. The general algorithm is proven to satisfy a formal definition of an IEEE standard for floating point arithmetic. The utility of the general specification is illustrated using a number of different instances of the general algorithm. C1 NASA, Langley Res Ctr, Hampton, VA 23681 USA. Old Dominion Univ, Dept Elect & Comp Engn, Norfolk, VA 23529 USA. RP NASA, Langley Res Ctr, Hampton, VA 23681 USA. EM p.s.miner@larc.nasa.gov; leathrum@ee.odu.edu NR 23 TC 10 Z9 10 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 3-540-61937-2 J9 LECT NOTES COMPUT SC PY 1996 VL 1166 BP 64 EP 78 PG 15 WC Computer Science, Theory & Methods SC Computer Science GA BK95F UT WOS:000073935500005 ER PT B AU Silbermann, NA Harris, HC Smith, HA AF Silbermann, NA Harris, HC Smith, HA BE Morrison, H Sarajedini, A TI Variable stars in the Draco dwarf spheroidal galaxy SO FORMATION OF THE GALACTIC HALO....INSIDE AND OUT SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Meeting in Honor of the 65th Birthday of George Preston on the Formation of the Galactic Halo - Inside and Out CY OCT 09-11, 1995 CL TUCSON, AZ SP Astron Soc Pacific, Natl Opt Astron Observ, Carnegie Inst Washington, Observatories C1 CALTECH,JET PROPULS LAB,IPAC,PASADENA,CA 91125. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-13-9 J9 ASTR SOC P PY 1996 VL 92 BP 536 EP 539 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF32B UT WOS:A1996BF32B00083 ER PT B AU Sakai, S Freedman, WL Madore, BF AF Sakai, S Freedman, WL Madore, BF BE Morrison, H Sarajedini, A TI Tip of the red giant branch distance to NGC 3379 SO FORMATION OF THE GALACTIC HALO....INSIDE AND OUT SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Meeting in Honor of the 65th Birthday of George Preston on the Formation of the Galactic Halo - Inside and Out CY OCT 09-11, 1995 CL TUCSON, AZ SP Astron Soc Pacific, Natl Opt Astron Observ, Carnegie Inst Washington, Observatories C1 CALTECH,JET PROP LAB,PASADENA,CA 91125. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-13-9 J9 ASTR SOC P PY 1996 VL 92 BP 548 EP 551 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF32B UT WOS:A1996BF32B00086 ER PT B AU Wilson, WM Rosenberg, LH Hyatt, LE AF Wilson, WM Rosenberg, LH Hyatt, LE GP PACIFIC NW SOFTWARE QUAL CONF TI Automated quality analysis of natural language requirement specifications SO FOURTEENTH ANNUAL PACIFIC NORTHWEST SOFTWARE QUALITY CONFERENCE LA English DT Proceedings Paper CT 14th Annual Pacific Northwest Software Quality Conference CY OCT 28-30, 1996 CL PORTLAND, OR AB The Goddard Space Flight Center's (GSFC) Software Assurance Technology Center (SATC) has developed an early life cycle tool for assessing requirements that are specified in natural language. This paper describes the development and experimental use of the Automated Requirements Measurement (ARM) tool. The ARM tool searches the requirements document for terms the SATC has identified as quality indicators. Reports produced by the tool are used to identify specification statements and structural areas of the requirements document that need to be improved. RP Wilson, WM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,SOFTWARE ASSURANCE TECHNOL CTR,BLD 6 CODE 3001,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU PACIFIC NORTHWEST SOFTWARE QUALITY CONFERENCE PI PORTLAND PA PO BOX 10142, PORTLAND, OR 97296 PY 1996 BP 140 EP 151 PG 12 WC Computer Science, Software Engineering SC Computer Science GA BJ23H UT WOS:A1996BJ23H00012 ER PT B AU Jobson, DJ Rahman, ZU Woodell, GA AF Jobson, DJ Rahman, ZU Woodell, GA GP SOC IMAGING SCI & TECHNOL TI Retinex image processing: Improved fidelity to direct visual observation SO FOURTH COLOR IMAGING CONFERENCE: COLOR SCIENCE, SYSTEMS AND APPLICATIONS: FINAL PROGRAM AND PROCEEDINGS OF IS&T/SID LA English DT Proceedings Paper CT 4th Color Imaging Conference - Color Science, Systems and Applications CY NOV 19-22, 1996 CL SCOTTSDALE, AZ SP Soc Imaging Sci & Technol, Soc Informat Display AB Recorded color images differ from direct human viewing by the lack of dynamic range compression and color constancy. Research is summarized which develops the center/surround retinex concept originated by Edwin Land through a single-scale design to a multi-scale design with color restoration (MSRCR). The MSRCR synthesizes dynamic range compression, color constancy, and color rendition and, thereby, approaches fidelity to direct observation. RP Jobson, DJ (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 1 Z9 1 U1 2 U2 2 PU SOC IMAGING SCIENCE & TECHNOLOGY PI SPRINGFIELD PA 7003 KILWORTH LANE, SPRINGFIELD, VA 22151 BN 0-89208-196-1 PY 1996 BP 124 EP 126 PG 3 WC Imaging Science & Photographic Technology SC Imaging Science & Photographic Technology GA BJ06N UT WOS:A1996BJ06N00032 ER PT J AU Li, J Armanios, EA AF Li, J Armanios, EA TI Analysis of free edge delamination in unsymmetrical composite laminates SO FRACTURE OF COMPOSITES SE KEY ENGINEERING MATERIALS LA English DT Article DE unsymmetrical composite laminates; delamination; fracture; strain energy release rate ID INTERLAMINAR FRACTURE; SUBLAMINATE ANALYSIS; EXTENSION; STRESS AB This paper summarizes recent advances in the analytical treatment of free edge delamination in unsymmetrical laminates. The development of a shear deformation model for the analysis of free edge delamination in unsymmetrical laminates or symmetrical laminates under unsymmetrical loading is reviewed. It is followed by the application of this model to the analysis of a class of unsymmetrical laminates with [-theta, (90 - theta)(2), -theta, theta, (theta - 90)(2), theta](T) lay-up exhibiting extension-twist coupling. The model is used in two different ways. One is to predict the influence of free-edge delamination on the laminate behavior and to identify controlling parameters for sensitivity analysis. The other Is to predict potential delamination sites in a given layup and to predict the critical interface based on interlaminar stresses and total strain energy release rate. C1 GEORGIA INST TECHNOL,SCH AEROSP ENGN,ATLANTA,GA 30332. RP Li, J (reprint author), NASA,LANGLEY RES CTR,NATL RES COUNCIL,HAMPTON,VA 23681, USA. NR 29 TC 0 Z9 0 U1 0 U2 1 PU TRANS TECH PUBLICATIONS PI CLAUSTHAL ZELLERFE PA EINERSBERGER BLICK 28, PO BOX 266, W-3392 CLAUSTHAL ZELLERFE, GERMANY SN 1013-9826 J9 KEY ENG MAT PY 1996 VL 120- BP 85 EP 127 PG 43 WC Materials Science, Composites SC Materials Science GA BG13L UT WOS:A1996BG13L00004 ER PT B AU Wilson, KE Lesh, JR Araki, K Arimoto, Y AF Wilson, KE Lesh, JR Araki, K Arimoto, Y BE Mecherle, GS TI Preliminary results of the Ground/Orbiter Lasercomm Demonstration experiment between Table Mountain and the ETS-VI satellite SO FREE-SPACE LASER COMMUNICATION TECHNOLOGIES VIII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Free-Space Laser Communication Technologies VIII Conference CY JAN 30-31, 1996 CL SAN JOSE, CA SP Soc Photo Opt Instrumentat Engineers DE GOLD; ETS-VI; LCE Lasercomm; Table Mountain Facility; optical communications C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91125. RI Institute of Chemistry - USP, Dept. of Chemistry/B-8988-2012 NR 0 TC 3 Z9 3 U1 1 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2073-5 J9 P SOC PHOTO-OPT INS PY 1996 VL 2699 BP 121 EP 132 DI 10.1117/12.238428 PG 12 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BF47P UT WOS:A1996BF47P00012 ER PT B AU Hemmati, H Wilson, K Sue, M Rascoe, SD Lansing, F Wilhelm, M Harcke, L Chen, C AF Hemmati, H Wilson, K Sue, M Rascoe, SD Lansing, F Wilhelm, M Harcke, L Chen, C BE Mecherle, GS TI Comparative study of optical and RF communication systems for a Mars mission SO FREE-SPACE LASER COMMUNICATION TECHNOLOGIES VIII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Free-Space Laser Communication Technologies VIII Conference CY JAN 30-31, 1996 CL SAN JOSE, CA SP Soc Photo Opt Instrumentat Engineers C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 6 Z9 6 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2073-5 J9 P SOC PHOTO-OPT INS PY 1996 VL 2699 BP 146 EP 164 DI 10.1117/12.238410 PG 19 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BF47P UT WOS:A1996BF47P00014 ER PT B AU Hemmati, H AF Hemmati, H BE Mecherle, GS TI Laser communication component technologies: Database; Status and trends SO FREE-SPACE LASER COMMUNICATION TECHNOLOGIES VIII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Free-Space Laser Communication Technologies VIII Conference CY JAN 30-31, 1996 CL SAN JOSE, CA SP Soc Photo Opt Instrumentat Engineers C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2073-5 J9 P SOC PHOTO-OPT INS PY 1996 VL 2699 BP 310 EP 314 DI 10.1117/12.238422 PG 5 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BF47P UT WOS:A1996BF47P00029 ER PT B AU Heap, SR DeKoter, A AF Heap, SR DeKoter, A BE Leitherer, C FritzevonAlvensleben, U Huchra, J TI The effect of metallicity on starburst spectra SO FROM STARS TO GALAXIES: THE IMPACT OF STELLAR PHYSICS ON GALAXY EVOLUTION SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Conference on From Stars to Galaxies - The Impact of Stellar Physics on Galaxy Evolution CY OCT 09-13, 1995 CL IRAKLION, GREECE SP MITOS, S A C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-19-8 J9 ASTR SOC P PY 1996 VL 98 BP 90 EP 91 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32H UT WOS:A1996BG32H00019 ER PT B AU Dorman, B OConnell, RW AF Dorman, B OConnell, RW BE Leitherer, C FritzevonAlvensleben, U Huchra, J TI Constraints on the stellar populations of elliptical galaxies from ultraviolet spectra SO FROM STARS TO GALAXIES: THE IMPACT OF STELLAR PHYSICS ON GALAXY EVOLUTION SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Conference on From Stars to Galaxies - The Impact of Stellar Physics on Galaxy Evolution CY OCT 09-13, 1995 CL IRAKLION, GREECE SP MITOS, S A C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. NR 0 TC 6 Z9 6 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-19-8 J9 ASTR SOC P PY 1996 VL 98 BP 105 EP 110 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32H UT WOS:A1996BG32H00023 ER PT B AU Eisenhardt, P Werner, M AF Eisenhardt, P Werner, M BE Leitherer, C FritzevonAlvensleben, U Huchra, J TI SIRTF studies of galaxy evolution SO FROM STARS TO GALAXIES: THE IMPACT OF STELLAR PHYSICS ON GALAXY EVOLUTION SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Conference on From Stars to Galaxies - The Impact of Stellar Physics on Galaxy Evolution CY OCT 09-13, 1995 CL IRAKLION, GREECE SP MITOS, S A C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91125. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-19-8 J9 ASTR SOC P PY 1996 VL 98 BP 581 EP 582 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32H UT WOS:A1996BG32H00117 ER PT B AU MacNeice, P Mobarry, C Olson, K AF MacNeice, P Mobarry, C Olson, K GP IEEE, COMP SOC TI Particle-mesh techniques on the MasPar SO FRONTIERS '96 - THE SIXTH SYMPOSIUM ON FRONTIERS OF MASSIVELY PARALLEL COMPUTING, PROCEEDINGS LA English DT Proceedings Paper CT 6th Symposium on the Frontiers of Massively Parallel Computing - Petaflops Computing (Frontiers 96) CY OCT 27-31, 1996 CL ANNAPOLIS, MD SP IEEE Comp Soc, NASA Goddard Space Flight Ctr, USRA CESDIS C1 NASA,GSFC,HUGHES STX,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 2 U2 2 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-7551-9 PY 1996 BP 154 EP 161 DI 10.1109/FMPC.1996.558072 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG62X UT WOS:A1996BG62X00017 ER PT B AU Fineberg, SA Wong, P Nitzberg, B Kuszmaul, C AF Fineberg, SA Wong, P Nitzberg, B Kuszmaul, C GP IEEE, COMP SOC TI PMPIO - A portable implementation of MPI-IO SO FRONTIERS '96 - THE SIXTH SYMPOSIUM ON FRONTIERS OF MASSIVELY PARALLEL COMPUTING, PROCEEDINGS LA English DT Proceedings Paper CT 6th Symposium on the Frontiers of Massively Parallel Computing - Petaflops Computing (Frontiers 96) CY OCT 27-31, 1996 CL ANNAPOLIS, MD SP IEEE Comp Soc, NASA Goddard Space Flight Ctr, USRA CESDIS C1 NASA,AMES RES CTR,NUMER AERODYNAM SIMULAT,MRJ INC,MOFFETT FIELD,CA 94035. NR 0 TC 10 Z9 10 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-7551-9 PY 1996 BP 188 EP 195 DI 10.1109/FMPC.1996.558082 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG62X UT WOS:A1996BG62X00021 ER PT B AU MacNeice, P Mobarry, CM Crawford, J Sterling, J AF MacNeice, P Mobarry, CM Crawford, J Sterling, J GP IEEE, COMP SOC TI Preliminary insights on shared memory PIC code performance on the Convex Exemplar SPP1000 SO FRONTIERS '96 - THE SIXTH SYMPOSIUM ON FRONTIERS OF MASSIVELY PARALLEL COMPUTING, PROCEEDINGS LA English DT Proceedings Paper CT 6th Symposium on the Frontiers of Massively Parallel Computing - Petaflops Computing (Frontiers 96) CY OCT 27-31, 1996 CL ANNAPOLIS, MD SP IEEE Comp Soc, NASA Goddard Space Flight Ctr, USRA CESDIS C1 NASA,GODDARD SPACE FLIGHT CTR,HUGHES STX,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-7551-9 PY 1996 BP 214 EP 222 DI 10.1109/FMPC.1996.558087 PG 9 WC Computer Science, Theory & Methods SC Computer Science GA BG62X UT WOS:A1996BG62X00024 ER PT S AU McGuire, JR AF McGuire, JR BE Iskander, MF Gonzalez, MJ Engel, GL Rushforth, CK Yoder, MA Grow, RW Durney, CH TI Engineering education in Japan: My experience SO FRONTIERS IN EDUCATION FIE'96 - 26TH ANNUAL CONFERENCE, PROCEEDINGS, VOLS 1-3: TECHNOLOGY-BASED RE-ENGINEERING ENGINEERING EDUCATION SE PROCEEDINGS-FRONTIERS IN EDUCATION CONFERENCE LA English DT Proceedings Paper CT 26th Annual conference on Frontiers in Education - Technology-Based Re-Engineering Engineering Education (FIE 96) CY NOV 06-09, 1996 CL SALT LAKE CITY, UT SP IEEE Educ Soc, IEEE Comp Soc, ASEE Educ Res & Methods Div AB While attending a Japanese National University I observed many unique aspects of engineering education in Japan. Most of these unique aspects point reward three interesting themes: Preparation, Fraternity, and Mentorship. The effects of these characteristics are discussed and compared to engineering education in the United States. RP McGuire, JR (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0190-5848 BN 0-7803-3349-7 J9 PROC FRONT EDUC CONF PY 1996 BP 368 EP 371 PG 4 WC Education, Scientific Disciplines; Engineering, Electrical & Electronic SC Education & Educational Research; Engineering GA BH26A UT WOS:A1996BH26A00091 ER PT B AU Berenji, HR Khedkar, PS Malkani, A AF Berenji, HR Khedkar, PS Malkani, A GP IEEE TI Refining linear fuzzy rules by reinforcement learning SO FUZZ-IEEE '96 - PROCEEDINGS OF THE FIFTH IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS, VOLS 1-3 LA English DT Proceedings Paper CT 5th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 96) CY SEP 08-11, 1996 CL NEW ORLEANS, LA SP IEEE, Neural Networks Council C1 NASA,AMES RES CTR,DIV COMPUTAT SCI,INTELLIGENT INFERENCE SYST CORP,MOFFETT FIELD,CA 94035. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3646-1 PY 1996 BP 1750 EP 1756 PG 3 WC Computer Science, Artificial Intelligence SC Computer Science GA BG47R UT WOS:A1996BG47R00287 ER PT B AU Berenji, HR AF Berenji, HR GP IEEE TI Fuzzy Q-Learning for generalization of reinforcement learning SO FUZZ-IEEE '96 - PROCEEDINGS OF THE FIFTH IEEE INTERNATIONAL CONFERENCE ON FUZZY SYSTEMS, VOLS 1-3 LA English DT Proceedings Paper CT 5th IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 96) CY SEP 08-11, 1996 CL NEW ORLEANS, LA SP IEEE, Neural Networks Council C1 NASA,AMES RES CTR,INTELLIGENT INFERENCE SYST CORP,DIV COMP SCI,MOUNTAIN VIEW,CA 94035. NR 0 TC 13 Z9 14 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3646-1 PY 1996 BP 2208 EP 2214 PG 3 WC Computer Science, Artificial Intelligence SC Computer Science GA BG47R UT WOS:A1996BG47R00361 ER PT B AU Cotera, AS Simpson, JP Erickson, EF Colgan, SWJ Burton, MG AF Cotera, AS Simpson, JP Erickson, EF Colgan, SWJ Burton, MG BE Gredel, R TI Interstellar extinction in the vicinity of Galactic Center thermal radio emission regions SO GALACTIC CENTER: 4TH ESO/CTIO WORKSHOP SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Workshop on the Galactic Center - 4th Joint International Meeting of the European-Southern-Observatory/Cerro-Tololo-Inter-American-Observatory CY MAR 10-15, 1996 CL LA SERENA, CHILE SP European So Observatory, Cerro Tololo Inter Amer Observatory C1 NASA,JET PROP LAB 10022,PASADENA,CA 91109. RI Colgan, Sean/M-4742-2014 NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-22-8 J9 ASTR SOC P PY 1996 VL 102 BP 122 EP 126 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG37B UT WOS:A1996BG37B00019 ER PT B AU Gezari, D AF Gezari, D BE Gredel, R TI Mid-infrared emission and luminous sources in the central parsec SO GALACTIC CENTER: 4TH ESO/CTIO WORKSHOP SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Workshop on the Galactic Center - 4th Joint International Meeting of the European-Southern-Observatory/Cerro-Tololo-Inter-American-Observatory CY MAR 10-15, 1996 CL LA SERENA, CHILE SP European So Observatory, Cerro Tololo Inter Amer Observatory C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 4 Z9 4 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-22-8 J9 ASTR SOC P PY 1996 VL 102 BP 491 EP 499 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG37B UT WOS:A1996BG37B00069 ER PT B AU Gehrels, N Teegarden, B Barbier, L Barthelmy, S Bartlett, L Cline, T Fenimore, E Fishman, G Hurley, K Krizmanic, J Kouveliotou, C Leventhal, M McCammon, D Norris, J Palmer, D Parsons, A Paciesas, W Sanders, W Schaefer, B Stahle, C Tueller, J vanParadijs, J Woosley, S AF Gehrels, N Teegarden, B Barbier, L Barthelmy, S Bartlett, L Cline, T Fenimore, E Fishman, G Hurley, K Krizmanic, J Kouveliotou, C Leventhal, M McCammon, D Norris, J Palmer, D Parsons, A Paciesas, W Sanders, W Schaefer, B Stahle, C Tueller, J vanParadijs, J Woosley, S BE Ramsey, BD Parnell, TA TI The BASIS mission concept for gamma-ray burst imaging and spectroscopy SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE gamma-ray astronomy; mission concepts; instrumentation; CdZnTe C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Parsons, Ann/I-6604-2012 NR 0 TC 4 Z9 4 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 12 EP 19 DI 10.1117/12.253983 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00002 ER PT B AU Christl, MJ Fountain, WF Parnell, TA Roberts, FE Benson, C Berry, FA Gregory, JG Takahashi, Y AF Christl, MJ Fountain, WF Parnell, TA Roberts, FE Benson, C Berry, FA Gregory, JG Takahashi, Y BE Ramsey, BD Parnell, TA TI The scintillating optical fiber calorimeter (SOFCAL) instrument SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE cosmic rays; emulsion chambers; ionization calorimeters; scintillating fibers C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 155 EP 163 DI 10.1117/12.253975 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00016 ER PT B AU Wiedenbeck, ME Christian, ER Cook, WR Cummings, AC Dougherty, BL Leske, RA Mewaldt, RA Stone, EC vonRosenvinge, TT AF Wiedenbeck, ME Christian, ER Cook, WR Cummings, AC Dougherty, BL Leske, RA Mewaldt, RA Stone, EC vonRosenvinge, TT BE Ramsey, BD Parnell, TA TI Two-dimensional position-sensitive silicon detectors for the ACE solar isotope spectrometer SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE silicon detectors; position-sensitive detectors C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RI Christian, Eric/D-4974-2012 OI Christian, Eric/0000-0003-2134-3937 NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 176 EP 187 DI 10.1117/12.253977 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00018 ER PT B AU Dougherty, BL Christian, ER Cummings, AC Leske, RA Mewaldt, RA Milliken, BD vonRosenvinge, TT Wiedenbeck, ME AF Dougherty, BL Christian, ER Cummings, AC Leske, RA Mewaldt, RA Milliken, BD vonRosenvinge, TT Wiedenbeck, ME BE Ramsey, BD Parnell, TA TI Characterization of large-area silicon ionization detectors for the ACE mission SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE large-area lithium-drifted and high-purity ion-implanted silicon ionization detectors; dead-layers C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RI Christian, Eric/D-4974-2012 OI Christian, Eric/0000-0003-2134-3937 NR 0 TC 5 Z9 5 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 188 EP 198 DI 10.1117/12.253978 PG 11 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00019 ER PT B AU Gehrels, N Winkler, C AF Gehrels, N Winkler, C BE Ramsey, BD Parnell, TA TI International gamma-ray astrophysics laboratory (INTEGRAL): A future ESA mission for gamma-ray astronomy SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE gamma-ray astronomy; future mission C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012 NR 0 TC 7 Z9 7 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 210 EP 216 DI 10.1117/12.253980 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00021 ER PT B AU Varnell, LS Mahoney, WA Hull, EL Butler, JF Wong, AS AF Varnell, LS Mahoney, WA Hull, EL Butler, JF Wong, AS BE Ramsey, BD Parnell, TA TI Radiation effects in CdZnTe gamma-ray detectors produced by 199 MeV protons SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE radiation damage; gamma-ray astronomy; CdZnTe; gamma-ray detectors C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 10 Z9 10 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 424 EP 431 DI 10.1117/12.254014 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00040 ER PT B AU Parsons, A Barthelmy, S Bartlett, L Birsa, F Gehrels, N Naya, J Odom, J Singh, S Stahle, CM Tueller, J Teegarden, B AF Parsons, A Barthelmy, S Bartlett, L Birsa, F Gehrels, N Naya, J Odom, J Singh, S Stahle, CM Tueller, J Teegarden, B BE Ramsey, BD Parnell, TA TI CdZnTe background measurements at balloon altitudes SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE CdZnTe; background; balloon instruments; shielding techniques; instrumentation; astronomical research C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Parsons, Ann/I-6604-2012 NR 0 TC 21 Z9 21 U1 0 U2 3 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 432 EP 441 DI 10.1117/12.254015 PG 10 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00041 ER PT B AU Naya, J Jean, P Gehrels, N SlassiSennou, S Teegarden, B Tueller, J Vedrenne, G vonBallmoos, P AF Naya, J Jean, P Gehrels, N SlassiSennou, S Teegarden, B Tueller, J Vedrenne, G vonBallmoos, P BE Ramsey, BD Parnell, TA TI Gamma-ray background lines in balloon and satellite borne Ge spectrometers SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012 NR 0 TC 5 Z9 5 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 472 EP 482 DI 10.1117/12.254019 PG 11 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00045 ER PT B AU Bartlett, LM Stahle, CM Palmer, D Barbier, LM Barthelmy, SD Birsa, F Gehrels, N Krizmanic, JF Kurczynski, P Odom, J Parsons, AM Sappington, C Shu, P Teegarden, BJ Tueller, J AF Bartlett, LM Stahle, CM Palmer, D Barbier, LM Barthelmy, SD Birsa, F Gehrels, N Krizmanic, JF Kurczynski, P Odom, J Parsons, AM Sappington, C Shu, P Teegarden, BJ Tueller, J BE Ramsey, BD Parnell, TA TI CdZnTe strip detectors for astrophysical arc second imaging and spectroscopy: Detector performance and radiation effects SO GAMMA-RAY AND COSMIC-RAY DETECTORS, TECHNIQUES, AND MISSIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Gamma-Ray and Cosmic-Ray Detectors, Techniques, and Missions CY AUG 05-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE CdZnTe; detectors; imaging; spectroscopy; gamma-ray; hard x-ray; radiation effects; surface damage; proton damage; astronomy C1 NASA,GODDARD SPACE FLIGHT CTR,NRC,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Barthelmy, Scott/D-2943-2012; Parsons, Ann/I-6604-2012 NR 0 TC 12 Z9 12 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2194-4 J9 P SOC PHOTO-OPT INS PY 1996 VL 2806 BP 616 EP 628 DI 10.1117/12.254023 PG 13 WC Engineering, Aerospace; Instruments & Instrumentation; Optics SC Engineering; Instruments & Instrumentation; Optics GA BG61J UT WOS:A1996BG61J00060 ER PT S AU Norris, JP AF Norris, JP BE Kouveliotou, C Briggs, MF Fishman, GJ TI Canonical timescales in GRBs - 1995 SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Understanding the bimodal duration distribution (dynamic range > 10(4)) of gamma-ray bursts is central to determining if the phenomenon is in fact a singular one. A unifying concept, beyond isotropy and inhomogeneity of the two groups separately, is that bursts consist of pulses, organized in time and energy: wider pulses are more asymmetric, their centroids are shifted to later times at lower energies, and shorter, more symmetric pulses tend to be spectrally harder. Long bursts tend to have many pulses while short bursts usually have few, relatively narrow pulses. Two factors, viewing angle and beaming, may account for pulse asymmetry and the large dynamic range (similar to 200) in pulse widths. A cosmological time-dilation signature, with an expected dynamic range of order two, would be difficult to measure against these large intrinsic variations and low signal-to-noise levels of dimmer bursts. Some statistics (T-90, pulse intervals) are particularly sensitive to brightness bias, noise, and apparently minor variations in definition. Also, spectral redshift would move narrower, high-energy emission from dim bursts into the band of observation, constituting a countering effect to time dilation. With analyses restricted to bursts longer than similar to 2 s, tests for time dilation that are constructed to be free of brightness bias have yielded time-dilation factors similar to 2-3, for pulse structures, intervals between structures, and durations. RP Norris, JP (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 13 EP 22 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00002 ER PT S AU Bonnell, JT Norris, JP Nemiroff, RJ Scargle, JD AF Bonnell, JT Norris, JP Nemiroff, RJ Scargle, JD BE Kouveliotou, C Briggs, MF Fishman, GJ TI Brightness-independent measurements of GRB durations SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We present measurements of T-90 and T-50 durations of BATSE gamma-ray bursts in the 3B catalog, based on an automated algorithm designed to reduce brightness-bias effects by scaling burst peak intensities and variances to those of the dimmest burst in the sampler A multi-scale threshold is applied to estimate the beginning and end of burst activity. T-90 and T-50 measures indicate an observed time-dilation factor of order 2 between average durations of bright and dim bursts. We also estimate the dependence of duration measure on energy band, and find that an increase of order 10-25% would be required if the actual cosmological time-dilation factor were 2-3. RP Bonnell, JT (reprint author), NASA,GODDARD SPACE FLIGHT CTR,USRA,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 28 EP 32 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00004 ER PT S AU Norris, JP Nemiroff, RJ Bonnell, JT Scargle, JD AF Norris, JP Nemiroff, RJ Bonnell, JT Scargle, JD BE Kouveliotou, C Briggs, MF Fishman, GJ TI Calibration of tests for time dilation in GRB pulse structures SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Two tests for cosmological time dilation in gamma-ray bursts-the peak alignment and auto-correlation statistics-involve averaging information near the times of peak intensity. Both tests require width corrections, assuming cosmological origin for bursts, since narrower temporal structure from higher energy would be redshifted into the band of observation, and since intervals between pulse structures are included in the averaging procedures. We analyze long (> 2 s) BATSE bursts and estimate total width corrections for trial time-dilation factors (TDF [1+z(dim)]/[1+z(brt)]) by time-dilating and redshifting bright bursts. Both tests reveal significant trends of increasing TDF with decreasing peak flux, but neither provides sufficient discriminatory power to distinguish between actual TDFs in the range 2-3. RP Norris, JP (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 72 EP 76 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00013 ER PT S AU Norris, JP Bonnell, JT Nemiroff, RJ Scargle, JD AF Norris, JP Bonnell, JT Nemiroff, RJ Scargle, JD BE Kouveliotou, C Briggs, MF Fishman, GJ TI Test for time dilation of intervals between pulse structures in GRBs SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB If gamma-ray bursts are at cosmological distances, then not only their constituent pulses but also the intervals between pulses should be time-dilated. Unlike time-dilation measures of pulse emission, intervals would appear to require negligible correction for redshift of narrower temporal structure from higher energy into the band of observation. However, stretching of pulse intervals is inherently difficult to measure without incurring a timescale-dependent bias since, as time profiles are stretched, more structure can appear near the limit of resolution. This problem is compounded in dimmer bursts because identification of significant structures becomes more problematic. We attempt to minimize brightness bias by equalizing signal-to-noise (s/n) level of all bursts. We analyze wavelet-denoised burst profiles binned to several resolutions, identifying significant fluctuations between pulse structures and interjacent valleys. When bursts are ranked by peak flux, an interval time-dilation signature is evident, but its magnitude and significance are dependent upon temporal resolution and s/n level. RP Norris, JP (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 77 EP 81 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00014 ER PT S AU Scargle, JD Norris, JP Nemiroff, RJ Bonnell, JT AF Scargle, JD Norris, JP Nemiroff, RJ Bonnell, JT BE Kouveliotou, C Briggs, MF Fishman, GJ TI Profiles of gamma-ray bursts and their component pulses SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB One physically informative regularity of the otherwise heterogeneous gamma-ray bursts, is that many consist of well defined pulses. To objectively quantify burst temporal structures, we developed an automatic modeling procedure for time-tagged event (TTE) and time-to-spill (TTS) data that separates overlapping pulses and determines their energy-dependence. The crucially important initial guess solution is determined by wavelet-denoising a time series of delta-function photon arrival times, and then locating, modeling, and removing successive pulses (analogously to the clean deconvolution procedure of radio astronomy). The final model is then determined by minimizing a Bayesian likelihood function Pr(model/data) based on the Poisson probability distribution. This effort will yield statistical information on pulse rise-time, decay-time, peakedness, and amplitudes, plus their energy dependences - both within a single burst and for a large ensemble of bursts. RP Scargle, JD (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 91 EP 95 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00017 ER PT S AU Catelli, JR Dingus, BL Schneid, EJ AF Catelli, JR Dingus, BL Schneid, EJ BE Kouveliotou, C Briggs, MF Fishman, GJ TI EGRET TASC observations of the Bright April 25, 1995 GRB SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The bright burst of 1995 April 25 was observed by the EGRET instrument on the Compton Observatory. Although the burst was significantly off-axis (47.6 degrees) and therefore could not be imaged at >30 MeV in the EGRET spark chamber, it was observable in the 1 to 200 MeV range by the Total Absorbtion Shower Counter (TASC) portion of the instrument. The event was highly significant in three consecutive 32.768 second spectral accumulation times, and has one of the hardest observed spectra at energies greater than 1 MeV. Spectra for shorter time intervals were unavailable for this event, as telemetry gaps caused a loss of data during the readout of the burst mode spectra. RP Catelli, JR (reprint author), UNIV MARYLAND,NASA,GSFC,COLLEGE PK,MD 20742, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 158 EP 161 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00028 ER PT S AU Hua, XM Lingenfelter, RE AF Hua, XM Lingenfelter, RE BE Kouveliotou, C Briggs, MF Fishman, GJ TI Effects of Compton scattering on BATSE Gamma-Ray Burst spectral analysis SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The question of whether or not there are significant absorption lines in the BATSE spectra of gamma-ray bursts is one of the major remaining problems in the analysis of the BATSE data. Such lines, reported by KONUS, HEAO-1 and GINGA, have been interpreted as cyclotron lines in the teragauss magnetic fields of neutron stars and can set strong constraints on the origin of gamma-ray bursts. But searches of BATSE Spectroscopy Detector (SD) data show possible absorption features in the burst spectra of one detector which are not evident in that of another detector which also sees the burst. Preliminary analyses of BATSE burst data have shown (5), however, that Compton scattering of the gamma-ray burst emission by both the surrounding spacecraft and the Earth's atmosphere can greatly dilute possible absorption line features in the spectra measured by the BATSE Spectroscopy Detectors and selectively reduce their detectability, depending on the direction of the burst with respect to individual detectors. Here we present new, more systematic and complete analyses which we are currently making of azimuthal variations in the detector response resulting from Compton scattering that greatly affect not only the detection of possible absorption features but the burst spectral analysis in general. RP Hua, XM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,NATL RES COUNCIL,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 182 EP 186 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00033 ER PT S AU Kargatis, VE Liang, EP AF Kargatis, VE Liang, EP BE Kouveliotou, C Briggs, MF Fishman, GJ TI The spectral evolution of gamma-ray burst pulses SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We perform time-resolved spectral analysis on 26 multi-pulse BATSE GRBs. By fixing two parameters of a 3-parameter fit to the time-integrated values, we achieve a robust spectral hardness measure and physical fluxes. 28 pulse decay phases in 15 GRBs show significant correlation between peak power energy and instantaneous energy flux (characterized by F-E proportional to E(p)(1.7)). We compare peak energy fluxes, peak hardnesses, and pulse durations and separations for pulse pairs in our sample. There may be some indication of a ''recovery timescale'' for the bursters' energy source or environment. RP Kargatis, VE (reprint author), HUGHES STX,GODDARD SPACE FLIGHT CTR,CODE 631,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 192 EP 196 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00035 ER PT S AU Palmer, DM Seifert, H Teegarden, BJ Gehrels, N Cline, TL Ramaty, R Hurley, K Pehl, R Madden, N Owens, A AF Palmer, DM Seifert, H Teegarden, BJ Gehrels, N Cline, TL Ramaty, R Hurley, K Pehl, R Madden, N Owens, A BE Kouveliotou, C Briggs, MF Fishman, GJ TI High resolution GRB spectra from the Transient Gamma-Ray Spectrometer (TGRS) SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The Transient Gamma-Ray Spectrometer (TGRS) is a germanium spectrometer designed to produce high-resolution (2-3 keV) spectra of bright gamma-ray bursts. In its first year of operation it has triggered on 62 GRBs, of which similar to 33 were bright enough for spectroscopy. Almost all of these bursts were also seen by the Konus detectors on the same spacecraft, and about half were also observed by BATSE. This allows the instruments and their results to be compared and will allow line candidates seen by any of the instruments to be confirmed or refuted by the others. This paper presents some typical spectra from GRBs observed by TGRS, and includes for comparison the corresponding BATSE and Konus spectra. RP Palmer, DM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 661,GREENBELT,MD 20770, USA. RI Gehrels, Neil/D-2971-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 218 EP 222 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00041 ER PT S AU Seifert, H Cline, TL Gehrels, N Mitra, B Palmer, DM Ramaty, R Teegarden, BJ Hurley, K Madden, N Pehl, R Owens, A AF Seifert, H Cline, TL Gehrels, N Mitra, B Palmer, DM Ramaty, R Teegarden, BJ Hurley, K Madden, N Pehl, R Owens, A BE Kouveliotou, C Briggs, MF Fishman, GJ TI The detector response matrices of the Transient Gamma-Ray Spectrometer (TGRS) SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The Transient Gamma-Ray Spectrometer (TGRS) on the WIND spacecraft is a germanium detector primarily designed to measure high-resolution (similar to 2-3 keV) spectra of bright gamma-ray bursts. The instrument response matrix, used to unfold photon spectra from the measured count spectra, has been obtained by modelling TGRS/WIND with the GEANT detector description and simulation package from CERN. The simulations were verified using laboratory measurements. We present a brief description of the TGRS instrument, as well as an outline of the measurements, simulations and software algorithms used in the generation of the detector response matrices. RP Seifert, H (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 661,GREENBELT,MD 20771, USA. RI Gehrels, Neil/D-2971-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 258 EP 262 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00049 ER PT S AU Meegan, CA Pendleton, GN Briggs, MS Kouveliotou, C Koshut, TM Lestrade, JP Paciesas, WS McCollough, ML Brainerd, JJ Horack, JM Hakkila, J Henze, W Preece, RD Mallozzi, RS Fishman, GJ AF Meegan, CA Pendleton, GN Briggs, MS Kouveliotou, C Koshut, TM Lestrade, JP Paciesas, WS McCollough, ML Brainerd, JJ Horack, JM Hakkila, J Henze, W Preece, RD Mallozzi, RS Fishman, GJ BE Kouveliotou, C Briggs, MF Fishman, GJ TI The BATSE 3B catalog SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The Third BATSE catalog of gamma-ray bursts has recently been released. It comprises 1122 GRBs spanning more than three years of operation. All of the locations (including those of the 2B catalog) have been recomputed using an improved algorithm. A few percent of the bursts in the 2B catalog had large errors, which are corrected with the new algorithm. Systematic errors in locations are similar to 1.6 degrees. Several lines of evidence indicate that the size and distribution of location errors are reasonably well known. The angular distribution remains consistent with isotropy. The intensity distribution is inconsistent with homogeneity at intensities below 20 times the BATSE threshold, and consistent with homogeneity above 20 times threshold. RP Meegan, CA (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 291 EP 300 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00053 ER PT S AU Cline, TL Hurley, KC Boer, M Niel, M Sommer, M Kouveliotou, C Fishman, GJ Meegan, CA AF Cline, TL Hurley, KC Boer, M Niel, M Sommer, M Kouveliotou, C Fishman, GJ Meegan, CA BE Kouveliotou, C Briggs, MF Fishman, GJ TI Search for repeating classical bursts with the interplanetary network SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The comparison of gamma-ray burst observations from Ulysses and from CGRO BATSE has provided several hundred source regions that consist of large-diameter but narrow annuli. Although awkward for use in most applications, the one-dimensional accuracies of these ring segments can be exploited in the search for classical repeaters (as evidenced by the necessary crossing of multiple annuli at the same locations). The catalog of Ulysses-to-BATSE source loci (1) and the BATSE 3B catalog (2) have been used to search for source rings from the interplanetary network that intersect within or close to their own 3B source fields, with calculations done varying the BATSE field size. The regions determined in this manner are consistent with randomicity or can be accounted for as systematic to this technique. Thus, no evidence for the repetition of classical GRBs has been found. Extensions of this work could be possible using event catalogues from other missions, e.g., GGS-Wind, and from the earlier networks. RP Cline, TL (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 660,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 350 EP 352 PG 3 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00064 ER PT S AU Fichtel, CE Bertsch, DL Hartman, RC Hunter, SD vonMontigny, C Thompson, DJ Dingus, BL Esposito, JA Mukherjee, R Sreekumar, P Kanbach, G MayerHasselwander, HA Kniffen, DA Lin, YC Michelson, PF Nolan, PL McDonald, L Schneid, EJ AF Fichtel, CE Bertsch, DL Hartman, RC Hunter, SD vonMontigny, C Thompson, DJ Dingus, BL Esposito, JA Mukherjee, R Sreekumar, P Kanbach, G MayerHasselwander, HA Kniffen, DA Lin, YC Michelson, PF Nolan, PL McDonald, L Schneid, EJ BE Kouveliotou, C Briggs, MF Fishman, GJ TI Continuing search of the EGRET data for high-energy gamma-ray microsecond bursts SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB In the mid 1970's, Hawking (1) and Page and Hawking (2), investigated theoretically the possibility of detecting high-energy gamma rays produced by the quantum-mechanical decay of a small black hole created in the early universe. They concluded that, at the end of the life of the small black hole, it would radiate a burst of gamma rays peaked near 250 MeV with a total energy of about 10(34) ergs in the order of a microsecond or less if certain details of the theory were true. The characteristics of a black hole are determined by laws of physics beyond the range of current particle accelerators; hence, the search for these short bursts of high-energy gamma rays provides at least the possibility of detecting directly the gamma rays from such bursts, and a search of the EGRET data has led to an upper limit below 5 x 10(-2) black hole decays per pc(3) yr(-1), placing constraints on this and other theories predicting microsecond high-energy gamma-ray bursts. RP Fichtel, CE (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Hunter, Stanley/D-2942-2012; Thompson, David/D-2939-2012 OI Thompson, David/0000-0001-5217-9135 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 368 EP 372 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00068 ER PT S AU Horack, JM Mallozzi, RS Koshut, TM AF Horack, JM Mallozzi, RS Koshut, TM BE Kouveliotou, C Briggs, MF Fishman, GJ TI Reconciling GRB time dilation measurements to the brightness distribution in standard cosmology SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We present a means to assess the consistency of time dilation and energy shifting measurements with both the brightness distribution of BATSE and various Friedmann cosmological models. We utilize the methodology to assess the compatibility of a recent claim (1) of a time dilation factor of 2.25 from bursts separated by a factor of 21 in brightness. We show that these results are not compatible with the brightness distribution of BATSE, assuming a non-evolving population of standard-candle bursts embedded in an Einstein-de Sitter universe. Recent revisions of this value (2) downward to 1.75, which help to alleviate the discrepancy, however are still somewhat marginal in light of the energy-width corrections that need to be applied. RP Horack, JM (reprint author), NASA,MSFC,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 407 EP 411 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00076 ER PT S AU Horack, JM Meegan, CA Hakkila, J Emslie, AG AF Horack, JM Meegan, CA Hakkila, J Emslie, AG BE Kouveliotou, C Briggs, MF Fishman, GJ TI Analytic constraints on gamma-ray burst luminosity functions SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The brightness distribution of detected gamma-ray bursts enables constraints to be placed on their luminosities; specifically, analyses by previous authors have demonstrated that the range of luminosity from which approximately 90% of the observed bursts are drawn is very likely less than an order of magnitude. It has also been demonstrated that when power-law functional forms with infinite ranges of luminosity (a.) from 0 to L(max) or (b.) from L(min) to infinity are employed, it is necessary (but perhaps not sufficient) to restrict the power-law index beta < 1.8 and beta > 2.5, respectively, in order to obtain consistency with the observed brightness distribution. Similarly, these previous works have demonstrated that when 1.8 < beta < 2.5, the range of the burst luminosity function must be restricted and cannot be arbitrarily large. We present here analytic derivations of these results valid for any spatial density function and for both Euclidean and cosmological scenarios. This analysis shows that the limiting values of beta are simply the maximum and minimum absolute value logarithmic slopes of the brightness distribution. We also demonstrate that this result is consistent with those requiring a narrow range in luminosity for a majority of the detected bursts. RP Horack, JM (reprint author), NASA,MSFC,ES-84,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 412 EP 416 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00077 ER PT S AU Horack, JM Emslie, AG Koshut, TM Mallozzi, RS Meegan, CA AF Horack, JM Emslie, AG Koshut, TM Mallozzi, RS Meegan, CA BE Kouveliotou, C Briggs, MF Fishman, GJ TI The compatibility of Friedmann models with observed properties of GRBs and a large Hubble Constant SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB In this work, we investigate the implications of the constraints provided by both measurements of the Hubble Constant H-o, and by the brightness distribution of GRBs. We show that the range of cosmological models that can be consistent with the GRB brightness distribution, H-o near 80 km s(-1) Mpc(-1) and age of the universe near 15 Gyr is constrained significantly, largely independent of a wide range of assumptions regarding the evolutionary nature of the burst population. Specifically, low-density, Lambda > 0 cosmological models with deceleration parameter in the range -1 < q(o) < 0 and density parameter a, in the range approximate to 0.05-0.15 (Omega(o) approximate to 0.1 - 0.3) are strongly favored. RP Horack, JM (reprint author), NASA,MSFC,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 417 EP 421 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00078 ER PT S AU intZand, JJM Fenimore, EE AF intZand, JJM Fenimore, EE BE Kouveliotou, C Briggs, MF Fishman, GJ TI Threshold effects in GRB brightness distributions SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Brightness distributions (such as Log N-Log P or Log N-Log S) can be used to estimate the distance of gamma-ray bursts (GRBs). For low brightness, one must take into account threshold effects, for instance that a number of bursts were missed because they did not fulfill the trigger criteria. A suggestive method of correction for these threshold effects is the use of the trigger efficiency. Although the trigger efficiency indicates how severe threshold effects are, it does not provide complete information to correct for them. A more sophisticated tool is the trigger response matrix because it preserves the essential distinction between true and observed brightness. We discuss concept issues of how to take threshold effects into account, and illustrate this with calculations specific to BATSE. RP intZand, JJM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 661,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 431 EP 435 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00081 ER PT S AU McCollough, ML Meegan, CA Pendleton, GN AF McCollough, ML Meegan, CA Pendleton, GN BE Kouveliotou, C Briggs, MF Fishman, GJ TI Geocenter angle distribution of the 3B catalog SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We examine the geocenter angle distribution of the 1122 bursts contained within the 3B catalog. The distribution is modelled using an isotropic distribution of gamma-ray bursts and a sharp cutoff due to the presence of the earth. An excellent agreement between the distribution and the model is found, which provides an independent assessment of the BATSE location errors. Comparisons between the geocenter angles determined from different data types are made. Examination of the error distribution near the earth cutoff angle is presented. RP McCollough, ML (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,HUGHES STX,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 497 EP 501 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00095 ER PT S AU Nemiroff, RJ Norris, JP Bonnell, JT Scargle, JD AF Nemiroff, RJ Norris, JP Bonnell, JT Scargle, JD BE Kouveliotou, C Briggs, MF Fishman, GJ TI Time-dilation, Log N Log P, and cosmology SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We investigate whether a simple cosmology can fit GRB results in both time dilation and LogN - LogP simultaneously. Simplifying assumptions include: all GRBs are spectrally identical to BATSE trigger 143, Omega = 1 universe, and no luminosity and number density evolution. Observational data used include: the BATSE 3B peak brightness distribution (64-ms time scale), the Pioneer Venus Orbiter (PVO) brightness distribution, and the Norris et al. (8) time dilation results for peak aligned profiles presented at this meeting. We find acceptable cosmological fits to the brightness distributions when placing BATSE trigger 143 at a redshift of 0.15 +/- 0.10. This translates into a (1+z(dim))/(1+z(bright)) factor of about 1.50+/-0.50 between selected brightness extremes of the Norris et al. sample. Norris et al. (8,10,13) estimate, however, that (1+z(dim))/(1+z(bright)) approximate to 2.0 +/- 0.5 when considering duration tests. The difference is marginal and could be accounted for by evolution. We therefore find that evolution of GRBs is preferred but not demanded. RP Nemiroff, RJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GEORGE MASON UNIV,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 507 EP 511 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00097 ER PT S AU Barthelmy, SD Butterworth, PS Cline, TL Gehrels, N Fishman, GJ Kouveliotou, C Meegan, C Hurley, K AF Barthelmy, SD Butterworth, PS Cline, TL Gehrels, N Fishman, GJ Kouveliotou, C Meegan, C Hurley, K BE Kouveliotou, C Briggs, MF Fishman, GJ TI Progress with the real-time GRB coordinates distribution network (BACODINE) SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The RA,Dec coordinates of gamma-ray burst (GRB) sources observed with BATSE on GRO are automatically determined and distributed in real time to members of the global scientific community. These data are now being used by 27 operations to enable searches for associated transients in a variety of other wavelength or energy regimes to identify the burst source objects. The minimum total delay time from the onset of a GRB to the receipt of its coordinates by distant experimenters can be under 4 sec, less than the duration of a typical GRB, and the maximum total delay is 7 sec, or longer, depending on the distribution method. Recent improvements to the BACODINE system and some future improvements are discussed. A summary of the follow-up observations made by the BACODINE sites is given. RP Barthelmy, SD (reprint author), NASA,GODDARD SPACE FLIGHT CTR,USRA,CODE 661,GREENBELT,MD 20771, USA. RI Gehrels, Neil/D-2971-2012; Barthelmy, Scott/D-2943-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 580 EP 584 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00110 ER PT S AU Connaughton, V Akerlof, CW Biller, S Buckley, J CarterLewis, DA Catanese, M Cawley, MF Fegan, DJ Finley, J Gaidos, J Hillas, AM Lamb, RC Lessard, R McEnery, J Mohanty, G Porter, NA Quinn, J Rose, HJ Samuelson, F Schubnell, MS Sembroski, G Srinivasan, R Weekes, TC Wilson, C Zweerink, J Barthelmy, S Cline, T Gehrels, N Fishman, GJ Kouveliotou, C Meegan, C AF Connaughton, V Akerlof, CW Biller, S Buckley, J CarterLewis, DA Catanese, M Cawley, MF Fegan, DJ Finley, J Gaidos, J Hillas, AM Lamb, RC Lessard, R McEnery, J Mohanty, G Porter, NA Quinn, J Rose, HJ Samuelson, F Schubnell, MS Sembroski, G Srinivasan, R Weekes, TC Wilson, C Zweerink, J Barthelmy, S Cline, T Gehrels, N Fishman, GJ Kouveliotou, C Meegan, C BE Kouveliotou, C Briggs, MF Fishman, GJ TI Searches for TeV counterparts to classical gamma-ray bursts SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Intense effort has gone into the observation of optical, radio and X-ray GRB counterparts, either simultaneous to the burst or as quasi-steady remnants. Here we report on a similar study at higher energies of 250 GeV and above using ground-based telescopes. Imaging atmospheric Cherenkov telescopes have achieved great sensitivity and now complement observations by orbiting telescopes such as CGRO. Previous studies of bursts by the Whipple Collaboration (4) combined with recent improvements to the telescope, indicate that sensitivity to a fluence of 6 x 10(-9) erg-cm(-2) can be achieved. Observations by the Whipple Collaboration of nine BATSE positions, one within 2 minutes of the BATSE burst, using coordinates distributed through BACODINE will be reported. Analysis techniques will be described and an upper limit to the high-energy delayed or extended emission of observed candidates will be calculated. RP Connaughton, V (reprint author), NASA,MSFC,NRC,HUNTSVILLE,AL 35812, USA. RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; McEnery, Julie/D-6612-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 603 EP 606 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00115 ER PT S AU Baring, MG Harding, AK AF Baring, MG Harding, AK BE Kouveliotou, C Briggs, MF Fishman, GJ TI Relativistic expansions in gamma-ray bursts: Constraints from photon-photon pair production SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB A significant fraction of bright gamma-ray bursts detected by BATSE have also been seen at much higher energies by EGRET, implying that they are optically thin to photon-photon pair production out to 100 MeV or more. For sources more than about 10 pc away, this can be achieved only if the source is moving with a relativistic bulk Lorentz factor Gamma >> 1. Early calculations of gamma gamma --> e(+)e(-) straints for bursts were limited to cases of a beam with opening angle Theta(B) similar to 1/Gamma), or expansions of infinitely thin spherical shells. This paper presents our extension of pair production optical depth calculations in relativistically expanding sources to more general geometries, including shells of finite thickness and arbitrary opening angle. We find that the minimum Lorentz factor for EGRET sources to be optically thin, i.e., to display no spectral attenuation above 1 MeV, is only moderately dependent on the shell thickness and virtually independent of its opening solid angle if Theta(B) greater than or similar to 1/Gamma. This insensitivity to Theta(B) relieves the number problem for non-repeating sources at cosmological distances, i.e., it is not necessary to invoke small Og to effect photon escape. RP Baring, MG (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 661,GREENBELT,MD 20771, USA. RI Harding, Alice/D-3160-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 724 EP 728 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00139 ER PT S AU Desai, UD Acuna, MH Cline, TL Dennis, BR Orwig, LE Trombka, JI Starr, RD AF Desai, UD Acuna, MH Cline, TL Dennis, BR Orwig, LE Trombka, JI Starr, RD BE Kouveliotou, C Briggs, MF Fishman, GJ TI High spectral resolution studies of gamma ray bursts on new missions SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Two new missions will be launched in 1996 and 1997, each carrying X-ray and gamma ray detectors capable of high spectral resolution at room temperature. The Argentine Satelite de Aplicaciones Cientificas (SAC-B) and the Small Spacecraft Technology Initiative (SSTI) Clark missions will each carry several arrays of X-ray detectors primarily intended for the study of solar flares and gamma-ray bursts. Arrays of small (1 cm(2)) cadmium zinc telluride (CZT) units will provide x-ray measurements in the 10 to 80 keV range with an energy resolution of approximate to 6 keV. Arrays of both silicon avalanche photodiodes (APD) and P-intrinsic-N (PIN) photodiodes (for the SAC-B mission only) will provide energy coverage from 2-25 keV with approximate to 1 keV resolution. For SBC-B, higher energy spectral data covering the 30-300 keV energy range will be provided by CsI(Tl) scintillators coupled to silicon APDs, resulting in similar resolution but greater simplicity relative to conventional CsI/PMT systems. Because of problems with the Pegasus launch vehicle, the launch of SAC-B has been delayed until 1997. The launch of the SSTI Clark mission is scheduled for June 1996. RP Desai, UD (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Dennis, Brian/C-9511-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 819 EP 823 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00158 ER PT S AU Gehrels, N Teegarden, B Barbier, L Cline, T Parsons, A Tueller, J Barthelmy, S Palmer, D Krizmanic, J Fenimore, E Fishman, G Kouveliotou, C Hurley, K Paciesas, W vanParadijs, J Woosley, S Leventhal, M McCammon, D Sanders, W Schaefer, B AF Gehrels, N Teegarden, B Barbier, L Cline, T Parsons, A Tueller, J Barthelmy, S Palmer, D Krizmanic, J Fenimore, E Fishman, G Kouveliotou, C Hurley, K Paciesas, W vanParadijs, J Woosley, S Leventhal, M McCammon, D Sanders, W Schaefer, B BE Kouveliotou, C Briggs, MF Fishman, GJ TI BASIS: A GRB mission concept SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We are studying a gamma-ray burst mission concept called the Burst ArcSecond Imaging and Spectroscopy (BASIS) as part of NASA's New Mission Concepts for Astrophysics program. The scientific objectives are to accurately locate bursts, determine their distance scale, and measure the physical characteristics of the emission region. Arcsecond burst positions (angular resolution similar to 30 arcsec, source positions similar to 3 arcsec for >10(-6) erg/cm(2) bursts) would be obtained for similar to 100 bursts per year using the 10-200 keV emission. This would allow the first deep, unconfused counterpart searches at other wavelengths. The key technological breakthrough that makes such measurements possible is the development of CdZnTe room-temperature semiconductor detectors with fine (similar to 100 micron) spatial resolution. Fine spectroscopy would be obtained between 0.2 and 200 keV. The 0.2 keV threshold would allow the first measurements of absorption in our Galaxy and possible host galaxies, constraining the distance scale and host environment. RP Gehrels, N (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Barthelmy, Scott/D-2943-2012; Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Parsons, Ann/I-6604-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 824 EP 828 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00159 ER PT S AU Meegan, CA Fishman, GJ Harmon, BA Horack, JM Wilson, RB Brainerd, JJ Briggs, MS Paciesas, WS Pendleton, GN Kouveliotou, C Hakkila, J AF Meegan, CA Fishman, GJ Harmon, BA Horack, JM Wilson, RB Brainerd, JJ Briggs, MS Paciesas, WS Pendleton, GN Kouveliotou, C Hakkila, J BE Kouveliotou, C Briggs, MF Fishman, GJ TI EREBUS: An experiment to reveal the burster sites SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB There have been several suggestions that GRBs, if galactic, might be detected from M31. With the current crisis in determining the burster distance scale, this experiment has become crucial. EREBUS has been designed to detect a significant burst signal from M31 for any reasonable galactic model that is consistent with the BATSE isotropy and inhomogeneity constraints. The experiment uses 16 broadly collimated 2000 cm(2) NaI detectors, obtaining a factor of similar to 10 improvement in peak sensitivity over BATSE. The similarity to the BATSE detectors eliminates spectral and temporal free parameters in model fits. RP Meegan, CA (reprint author), NASA,MSFC,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 856 EP 860 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00166 ER PT S AU Harding, AK Baring, MG AF Harding, AK Baring, MG BE Kouveliotou, C Briggs, MF Fishman, GJ TI A photon splitting cascade model of soft gamma repeaters SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The spectra of soft gamma repeaters (SGRs), with the exception of the March 5, 1979 main burst, are characterized by high-energy cutoffs around 30 keV and low-energy turnovers that are much steeper than a Wien spectrum. Baring (1) found that cascades due to photon splitting in a very strong, homogeneous magnetic field can soften spectra and produce good fits to SGR spectra. Magnetic field strengths somewhat above the QED critical field strength B-cr, where B-cr=4.413x10(13) G, are required to produce cutoffs at 30-40 keV. We have improved upon this model by computing Monte Carlo photon splitting cascade spectra in a neutron star dipole magnetic field, including effects of curved space-time in a Schwarzschild metric. We investigate spectra produced by photons emitted at different locations and observer angles. We find that the general results of Baring hold for surface emission throughout most of the magnetosphere, but that emission in equatorial regions can best reproduce the constancy of SGR spectra observed from different bursts. RP Harding, AK (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 661,GREENBELT,MD 20771, USA. RI Harding, Alice/D-3160-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 941 EP 945 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00180 ER PT S AU Mahoney, WA Durouchoux, P Gautier, TN Ling, JC Wallyn, P Wheaton, WA AF Mahoney, WA Durouchoux, P Gautier, TN Ling, JC Wallyn, P Wheaton, WA BE Kouveliotou, C Briggs, MF Fishman, GJ TI Infrared observations of SGR 1900+14 SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB Using an aperture synthesis technique, the position of the soft gamma-ray repeater SGR 1900+14 has been found consistent with that of a ROSAT X-ray object which is itself coincident with an IRAS infrared point source. On 9 July 1995 we observed the IRAS source and neighboring regions in the near infrared using the Cassegrain IR camera on the Mt. Palomar 5-meter Hale telescope. Preliminary analysis shows two distinct objects of roughly equal intensity and similar spectral shape coincident with the IRAS source, confirming other recent observations. The two components are separated by 3.37'' and are dearly seen and well resolved in the J, H, and K-s bands. Deep exposures of the region show hints of faint nebulosity near these two bright objects. RP Mahoney, WA (reprint author), CALTECH,JPL,PASADENA,CA 91125, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 946 EP 950 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00181 ER PT S AU Bonnell, JT Nemiroff, RJ Graziani, CJ AF Bonnell, JT Nemiroff, RJ Graziani, CJ BE Kouveliotou, C Briggs, MF Fishman, GJ TI A diamond jubilee debate SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB In April 1995, 75 years after the ''Great Debate'' of 1920, Donald Q. Lamb (Chicago) and Bohdan Paczynski (Princeton) debated ''The Distance Scale to Gamma-Ray Bursts''. Here, we discuss the 1995 debate and some of the surrounding issues. According to accounts, the event was enjoyable, educational, inspiring, and even fun. Unfortunately, the distance scale to gamma-ray bursts is still unknown! RP Bonnell, JT (reprint author), NASA,GODDARD SPACE FLIGHT CTR,USRA,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 973 EP 976 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00186 ER PT S AU Bonnell, JT Klebesadel, RW AF Bonnell, JT Klebesadel, RW BE Kouveliotou, C Briggs, MF Fishman, GJ TI A brief history of the discovery of cosmic gamma-ray bursts SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB The discovery of cosmic gamma-ray bursts, based on an analysis of data produced by the Vela defense satellites was announced in Ap. J. letters in 1973 by Klebesadel, Strong, and Olsen. The story of the discovery begins 10 years earlier, in October of 1963, when the US Air Force launched the first in this series of satellites inspired by a nuclear test ban treaty. Interest in the events surrounding this discovery has been piqued by the recent public debate on the distance scale to the burst sources. Details of the Vela program to detect nuclear detonations and general circumstances surrounding the discovery of gamma-ray bursts of ''cosmic origin'' are presented. RP Bonnell, JT (reprint author), NASA,GSFC,USRA,GREENBELT,MD 20771, USA. NR 0 TC 0 Z9 0 U1 2 U2 2 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 977 EP 980 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00187 ER PT S AU Horack, JM Rizvi, S Friend, L AF Horack, JM Rizvi, S Friend, L BE Kouveliotou, C Briggs, MF Fishman, GJ TI An interactive gamma-ray burst educational text for the World-Wide-Web SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB In order to strengthen education and scientific literacy among the general public, it is important to communicate the results NASA has obtained, as well as the excitement of doing world-class science. The NASA Strategic Plan specifically mandates that new opportunities and pathways be found to disseminate scientific information for consumption by the general public. We therefore announce the release of A Major League Puzzle, an interactive educational text for the WWW. A Major League Puzzle is a seven-chapter introduction to the gamma-ray burst phenomenon presented to the user through the paradigms of baseball. This resource is intended for the general public who are interested in but have not received specific training in the sciences, and is targeted to reach students at the high-school level. Using a Web-browser program such as Netscape or Mosaic, A Major League Puzzle can be accessed at ''http://wwwssl.msfc.nasa.gov/ssl/pad/astro/batse/foreword.htm''. This work is one product of the Summer High School Apprenticeship Research Program (SHARP) conducted at the Marshall Space Plight Center in the Summer of 1995. RP Horack, JM (reprint author), NASA,MSFC,HUNTSVILLE,AL 35812, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 981 EP 984 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00188 ER PT S AU Nemiroff, RJ Bonnell, JT Norris, JP AF Nemiroff, RJ Bonnell, JT Norris, JP BE Kouveliotou, C Briggs, MF Fishman, GJ TI Temporal and spectral characteristics of terrestrial gamma flashes SO GAMMA-RAY BURSTS - 3RD HUNTSVILLE SYMPOSIUM, PTS 1 AND 2 SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 3rd Huntsville Symposium on Gamma-Ray Bursts CY OCT 25-27, 1995 CL HUNTSVILLE, AL SP Amer Inst Phys AB We have analyzed the BATSE high time resolution data for several terrestrial gamma flashes (TGFs) to characterize this newly identified phenomenon, which may be related to atmospheric lightning. The minimum timescale for TGF variability is 40 - 250 mu s. In general, TGFs ale spectrally much harder than cosmic gamma-ray bursts (GRBs), but as in GRBs, pulses within a TGF tend to peak earlier at higher energies and can have different spectra. Spectra for several TGFs were examined and found to be better fit in the 25 - 500 keV range by a power-law than a black body model. From empirical comparisons, we speculate that if TGFs are related to known high-atmospheric lightning events, then they are more probably related to red sprites than to blue jets or trans-ionospheric pulse pairs. RP Nemiroff, RJ (reprint author), GEORGE MASON UNIV,NASA,GSFC,FAIRFAX,VA 22030, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-685-9 J9 AIP CONF PROC PY 1996 IS 384 BP 990 EP 994 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BH28Y UT WOS:A1996BH28Y00190 ER PT J AU Eick, MJ Grossi, PR Golden, DC Sparks, DL Ming, DW AF Eick, MJ Grossi, PR Golden, DC Sparks, DL Ming, DW TI Dissolution kinetics of a lunar glass simulant at 25 degrees C: The effect of pH and organic acids SO GEOCHIMICA ET COSMOCHIMICA ACTA LA English DT Article ID AQUEOUS-SOLUTIONS; SILICATE MINERALS; SURFACE-CHEMISTRY; BASALTIC GLASS; MECHANISM; DECOMPOSITION; 70-DEGREES-C; DEPENDENCE; FELDSPARS; POTASSIUM AB The dissolution kinetics of a simulated lunar glass were examined at pH 3, 5, and 7. Additionally, the pH 7 experiments were conducted in the presence of citric and oxalic acid at concentrations of 2 and 20 mM. The organic acids were buffered at pH 7 to examine the effect of each molecule in their dissociated form. At pH 3, 5, and 7, the dissolution of the synthetic lunar glass was observed to proceed via a two-stage process. The first stage involved the parabolic release of Ca, Mg, Al, and Fe, and the linear release of Si. Dissolution was incongruent, creating a leached layer rich in Si and Ti which was verified by transmission electron microscopy (TEM). During the second stage the release of Ca, Mg, Al, and Fe was linear. A coupled diffusion/surface dissolution model was proposed for dissolution of the simulated lunar glass at pH 3, 5, and 7. During the first stage the initial release of mobile cations (i.e., Ca, Mg, Al, Fe) was Limited by diffusion through the surface leached layer of the glass (parabolic release), while Si release was controlled by the hydrolysis of the Si-O-Al bonds at the glass surface (linear release). As dissolution continued, the mobile cations diffused from greater depths within the glass surface. A steady-state was then reached where the diffusion rate across the increased path lengths equalled the Si release rate from the surface. In the presence of the organic acids, the dissolution of the synthetic lunar glass proceeded by a one stage process. The release of Ca, Mg, Al, and Fe followed a parabolic relationship, while the release of Si was linear. The relative reactivity of the organic acids used in the experiments was citrate > oxalate. A thinner leached layer rich in Si/Ti, as compared to the pH experiments, was observed using TEM. Rate data suggest that the chemisorption of the organic anion to surface silanol groups was responsible for enhanced dissolution in the presence of the organic acids. It is proposed that the increased rate of Si release is responsible for the one stage parabolic release of mobile cations and the relatively thin leached layer compared to experiments at pH 3 and 5. C1 UNIV DELAWARE, DEPT PLANT & SOIL SCI, NEWARK, DE 19717 USA. UTAH STATE UNIV, DEPT PLANTS SOILS & BIOMETEOROL, LOGAN, UT 84322 USA. NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. NR 53 TC 27 Z9 28 U1 0 U2 17 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0016-7037 EI 1872-9533 J9 GEOCHIM COSMOCHIM AC JI Geochim. Cosmochim. Acta PD JAN PY 1996 VL 60 IS 1 BP 157 EP 170 DI 10.1016/0016-7037(95)00377-0 PG 14 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA TQ461 UT WOS:A1996TQ46100014 PM 11541298 ER PT J AU Amundson, R Chadwick, O Kendall, C Wang, Y DeNiro, M AF Amundson, R Chadwick, O Kendall, C Wang, Y DeNiro, M TI Isotopic evidence for shifts in atmospheric circulation patterns during the late Quaternary in mid-North America SO GEOLOGY LA English DT Article ID HOLOCENE CLIMATIC-CHANGE; UNITED-STATES; CARBONATES; CHEMISTRY; RATIOS AB Wyoming is now at the eastern margin of westerlies originating in the Pacific, but in the Pleistocene appears to have received moisture from elsewhere, possibly the Gulf of Mexico, Oxygen isotope ratios of pedogenic carbonate in postglacial terraces Correspond to ratios in equilibrium with present meteoric waters, which show a strong relation to precipitation seasonality and storm sources, In contrast, the oxygen isotope ratios of ail pre-Holocene soils are significantly more positive, even though the carbon isotope composition of coexisting organic matter suggests that the carbonate formed in temperatures cooler than today. The oxygen isotope ratios of paleowaters in mid-North America appear to be more useful for identifying past storm sources than for estimating paleotemperatures. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. US GEOL SURVEY,DIV WATER RESOURCES,MENLO PK,CA 94025. UNIV CALIF BERKELEY,DEPT GEOL SCI,SANTA BARBARA,CA 94720. RP Amundson, R (reprint author), UNIV CALIF BERKELEY,DIV ECOSYST SCI,108 HILGARD,BERKELEY,CA 94720, USA. RI Amundson, Ronald /E-2654-2015 NR 42 TC 93 Z9 98 U1 0 U2 19 PU GEOLOGICAL SOC AMERICA PI BOULDER PA PO BOX 9140 3300 PENROSE PLACE, BOULDER, CO 80301 SN 0091-7613 J9 GEOLOGY JI Geology PD JAN PY 1996 VL 24 IS 1 BP 23 EP 26 DI 10.1130/0091-7613(1996)024<0023:IEFSIA>2.3.CO;2 PG 4 WC Geology SC Geology GA TP032 UT WOS:A1996TP03200006 ER PT J AU Dobrokhotov, S Olive, VM Ruzmaikin, A Shafarevich, A AF Dobrokhotov, S Olive, VM Ruzmaikin, A Shafarevich, A TI Magnetic field asymptotics in a well conducting fluid SO GEOPHYSICAL AND ASTROPHYSICAL FLUID DYNAMICS LA English DT Article DE asymptotic methods; complex WKB method; magnetohydrodynamics; ABC flows; dynamo processes ID NAVIER-STOKES EQUATIONS; GENERATION AB An asymptotic solution of the magnetic induction equation in a given velocity field is constructed for large magnetic Reynolds numbers. Initially localized distributions of the magnetic field are considered. The leading term of the asymptotics is found. The expansions are proved to be rigorously valid over a finite time interval. Estimates for the residuals are given. The results are illustrated by some examples: the Hubble flow with a linear dependence of the velocity on coordinates, and ABC type flows. The solutions in these cases are expressed in terms of elementary functions. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. RUSSIAN ACAD SCI,INST PROBLEMS MECH,MOSCOW 117526,RUSSIA. RP Dobrokhotov, S (reprint author), INST POLITECN NACL,CINVESTAV,DEPT MATEMAT,AP-14-740,MEXICO CITY 07000,DF,MEXICO. RI Dobrokhotov, Sergey/M-9506-2015; Shafarevich, Andrei/K-6390-2013 OI Dobrokhotov, Sergey/0000-0003-3055-4955; Shafarevich, Andrei/0000-0003-3813-8710 NR 18 TC 5 Z9 6 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 0309-1929 J9 GEOPHYS ASTRO FLUID JI Geophys. Astrophys. Fluid Dyn. PY 1996 VL 82 IS 3-4 BP 255 EP 280 DI 10.1080/03091929608213638 PG 26 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Mechanics SC Astronomy & Astrophysics; Geochemistry & Geophysics; Mechanics GA UZ123 UT WOS:A1996UZ12300006 ER PT J AU Meyer, B Tapponnier, P Gaudemer, Y Peltzer, G Guo, SM Chen, ZT AF Meyer, B Tapponnier, P Gaudemer, Y Peltzer, G Guo, SM Chen, ZT TI Rate of left-lateral movement along the easternmost segment of the Altyn Tagh fault, east of 96 degrees E (China) SO GEOPHYSICAL JOURNAL INTERNATIONAL LA English DT Article DE Altyn Tagh fault; fault slip; Tibet ID SOUTHERN TIBET; SLIP; TECTONICS; RECORD; SHAN AB Field work carried out in Gansu province and complemented with analysis of SPOT panchromatic scenes allows us to characterize the deformations along the eastern segment of the Altyn Tagh fault and to place bounds on its Holocene left slip rate, East of 96 degrees E, the long-term, left-lateral offset of stream channels, alluvial fans, and terrace edges is about 50 m. These offsets are most probably of Holocene age (12 +/- 2 ka) and imply that the corresponding derived slip rate is 4 +/- 2 mm yr(-1). This observation is consistent with a north-eastward along-strike decreasing slip rate on the Altyn fault due to partitioning of slip on multiple, more easterly trending splays. C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. STATE SEISMOL BUR,INST GEOL,BEIJING 100029,PEOPLES R CHINA. SEISMOL INST LANZHOU,INST GEOL,LANZHOU,PEOPLES R CHINA. RP Meyer, B (reprint author), IPGP,CNRS,URA 1093,LAB TECTON,4 PL JUSSIEU,F-75252 PARIS 05,FRANCE. RI Tapponnier, .Paul/B-7033-2011; Meyer, Bertrand/E-6903-2011; Gaudemer, Yves/K-3921-2012 OI Tapponnier, .Paul/0000-0002-7135-1962; NR 22 TC 73 Z9 94 U1 1 U2 7 PU BLACKWELL SCIENCE LTD PI OXFORD PA OSNEY MEAD, OXFORD, OXON, ENGLAND OX2 0EL SN 0956-540X J9 GEOPHYS J INT JI Geophys. J. Int. PD JAN PY 1996 VL 124 IS 1 BP 29 EP 44 DI 10.1111/j.1365-246X.1996.tb06350.x PG 16 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA TN693 UT WOS:A1996TN69300003 ER PT J AU Langel, RA Whaler, KA AF Langel, RA Whaler, KA TI Maps of the magnetic anomaly field at Earth's surface from scalar satellite data SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID MAGSAT DATA; HARMONIC SPLINES AB Satellite measurements of the magnetic anomaly field intensity have been used to estimate components of the vector field at the Earth's surface, using a linear approximation to relate satellite scalar measurements to downward-continued vector components. The relation between data and model was inverted using a depleted harmonic spline basis to find an almost minimum norm solution, enabling the detail present in satellite data to be preserved over continental-sized areas. In their development of the depleted basis method, Parker and Shure (1982) advocated using a subset of the original data as points in the depleted basis. Here, it is shown that a depleted basis formed from vertical component data kernels is much more satisfactory than a subset of measured intensity data kernels; however, we do form the depleted basis at the physical locations of actual data. The downward-continued map over Africa agrees well with its counterpart produced from Magsat orthogonal component data. C1 UNIV EDINBURGH,DEPT GEOL & GEOPHYS,EDINBURGH EH9 3JW,MIDLOTHIAN,SCOTLAND. RP Langel, RA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GEODYNAM BRANCH,CODE 921,GREENBELT,MD 20771, USA. NR 11 TC 9 Z9 9 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 JAN 1 PY 1996 VL 23 IS 1 BP 41 EP 44 DI 10.1029/95GL03092 PG 4 WC Geosciences, Multidisciplinary SC Geology GA TP400 UT WOS:A1996TP40000011 ER PT J AU Rampino, MR Volk, T AF Rampino, MR Volk, T TI Multiple impact event in the paleozoic: Collision with a string of comets or asteroids? SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article ID DISRUPTION AB Eight circular geologic structures ranging from similar to 3 to 17 km in diameter, showing evidence of outward-directed radial deformation and intensive brecciation, lie within a linear swath similar to 15 km wide along a straight line stretching similar to 700 km across the United States from southern Illinois through Missouri to eastern Kansas. Based on their similar geological characteristics and the presence of diagnostic and/or probable evidence of shock, these structures, once classified as 'cryptovolcanic' or 'cryptoexplosion' structures, are more confidently ascribed to hypervelocity impact. No other similar occurrence of aligned features is known, and we calculate the probability of a chance alignment to be <10(-9). The unusual alignment suggests that the features are coeval and related to a multiple impact event, with a best-constrained late Mississippian-early Pennsylvanian (similar to 330-310 Myr) age. Calculations suggest that the proposed impact-crater chain is unlikely to have been formed by an,incoming impactor disrupted by terrestrial or lunar tidal effects, and may have been the result of a string of asteroidal or cometary objects produced by breakup within the inner Solar System. C1 NYU,DEPT BIOL,NEW YORK,NY 10003. NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025. RP Rampino, MR (reprint author), NYU,EARTH SYST GRP,26-34 STUYVESANT ST,NEW YORK,NY 10003, USA. NR 37 TC 20 Z9 21 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 JAN 1 PY 1996 VL 23 IS 1 BP 49 EP 52 DI 10.1029/95GL03605 PG 4 WC Geosciences, Multidisciplinary SC Geology GA TP400 UT WOS:A1996TP40000013 ER PT J AU Manney, GL Froidevaux, L Waters, JW Santee, ML Read, WG Flower, DA Jarnot, RF Zurek, RW AF Manney, GL Froidevaux, L Waters, JW Santee, ML Read, WG Flower, DA Jarnot, RF Zurek, RW TI Arctic ozone depletion observed by UARS MLS during the 1994-95 winter SO GEOPHYSICAL RESEARCH LETTERS LA English DT Article AB During the unusually cold 1994-95 Arctic winter the Microwave Limb Sounder observed enhanced chlorine monoxide (ClO) in late Dec and throughout Feb and early Mar. Late Dec ClO was higher than during any of the previous 3 years, consistent with the colder early winter. Between late Dec 1994 and early Feb 1995, 465 K (similar to 50 hPa) vortex-averaged ozone (O-3) decreased by similar to 15%, with local decreases of similar to 30%; additional local decreases of similar to 5% were seen between early Feb and early Mar. Transport calculations indicate that vortex-averaged chemical loss between late Dec and early Feb was similar to 20% at 465 K, with similar to 1/4 of that masked by downward transport of O-3. This Arctic chemical O-3 loss is not readily detectable in MLS column O-3 data. RP Manney, GL (reprint author), CALTECH,JET PROP LAB,MAIL STOP 183-701,PASADENA,CA 91109, USA. NR 12 TC 58 Z9 58 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 JAN 1 PY 1996 VL 23 IS 1 BP 85 EP 88 DI 10.1029/95GL03591 PG 4 WC Geosciences, Multidisciplinary SC Geology GA TP400 UT WOS:A1996TP40000022 ER PT B AU Chesters, D Jenstrom, D AF Chesters, D Jenstrom, D BE Washwell, ER TI GATES - A small, agile imaging satellite prototype for GOES-R SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE spacecraft; imaging; GOES; GATES C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 30 EP 39 DI 10.1117/12.254089 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00004 ER PT B AU Molnar, GI Chesters, D AF Molnar, GI Chesters, D BE Washwell, ER TI Variability of marine stratiform clouds derived from GOES-8 imagery SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE clouds; stratiform; retrieval; climate; GOES C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 68 EP 79 DI 10.1117/12.254132 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00008 ER PT B AU Hasler, F Chesters, D JentoftNilsen, M Palaniappan, K AF Hasler, F Chesters, D JentoftNilsen, M Palaniappan, K BE Washwell, ER TI High performance animation of GOES weather images SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE image; weather; animation; GOES C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 80 EP 83 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00009 ER PT B AU Kambhamettu, C Palaniappan, K Hasler, FA AF Kambhamettu, C Palaniappan, K Hasler, FA BE Washwell, ER TI Automated cloud-drift winds from GOES images SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS C1 NASA,GODDARD SPACE FLIGHT CTR,MESOSCALE DYNAM & PRECIPITAT BRANCH,GREENBELT,MD 20771. NR 0 TC 3 Z9 3 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 122 EP 133 DI 10.1117/12.254061 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00013 ER PT B AU JentoftNilsen, M Palaniappan, K Hasler, AF Chesters, D AF JentoftNilsen, M Palaniappan, K Hasler, AF Chesters, D BE Washwell, ER TI Enhancement and quality control of GOES images SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE radiometric correction; histogram arrays; geometric registration; geostationary; GOES; satellite imaging C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 134 EP 145 DI 10.1117/12.254062 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00014 ER PT B AU Chesters, D Sharma, O Hasler, F Nielsen, T AF Chesters, D Sharma, O Hasler, F Nielsen, T BE Washwell, ER TI GOES-8/9 data ingest and public file service at NASA-GSFC SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE GOES; GVAR; ingest C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 146 EP 157 DI 10.1117/12.254063 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00015 ER PT B AU Murphy, JE Hinkal, SW AF Murphy, JE Hinkal, SW BE Washwell, ER TI GOES Sounder overview SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE GOES; Sounder; weather; satellite C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 6 Z9 6 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 174 EP 181 DI 10.1117/12.254065 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00017 ER PT B AU Heaney, JB Stewart, KP Bradley, SE Alley, PW AF Heaney, JB Stewart, KP Bradley, SE Alley, PW BE Washwell, ER TI Polarization contributions from optical components on infrared sounding instruments SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE polarization; beamsplitters; Mueller matrices; reflectance; transmittance; emittance C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 182 EP 198 DI 10.1117/12.254066 PG 3 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00018 ER PT B AU Martineau, RJ Hu, K Manthripragada, S Shi, J Kotecki, CA Peters, FA Burgess, AS Krebs, DJ Johnson, R Mott, DB Shu, PK AF Martineau, RJ Hu, K Manthripragada, S Shi, J Kotecki, CA Peters, FA Burgess, AS Krebs, DJ Johnson, R Mott, DB Shu, PK BE Washwell, ER TI High performance HgCdTe infrared detectors for the GOES long-wave sounder SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE HgCdTe; detector design; sweepout; performance enhancement C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 490 EP 500 DI 10.1117/12.254094 PG 3 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00045 ER PT B AU Russell, K Briscoe, J Corder, E Wallace, S Chappell, JH AF Russell, K Briscoe, J Corder, E Wallace, S Chappell, JH BE Washwell, ER TI The solar X-ray imager (SXI) detector calibration and characterization SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 3 Z9 3 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 638 EP 650 DI 10.1117/12.254109 PG 3 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00059 ER PT B AU Crassidis, JL Markley, FL Kyle, AM Blackman, K AF Crassidis, JL Markley, FL Kyle, AM Blackman, K BE Washwell, ER TI Attitude determination designs for the GOES spacecraft SO GOES-8 AND BEYOND SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on GOES-8 and Beyond CY AUG 07-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE earth sensor; star tracker; QUEST; enhanced QUEST; Kalman filter C1 NASA,GODDARD SPACE FLIGHT CTR,GUIDANCE & CONTROL BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2200-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2812 BP 824 EP 835 DI 10.1117/12.254126 PG 2 WC Engineering, Aerospace; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics SC Engineering; Instruments & Instrumentation; Meteorology & Atmospheric Sciences; Remote Sensing; Optics GA BG61F UT WOS:A1996BG61F00074 ER PT S AU Kia, T Aljabri, A Goddard, R Munson, T Kissel, G Lin, H Vaze, P AF Kia, T Aljabri, A Goddard, R Munson, T Kissel, G Lin, H Vaze, P BE Culp, RD Odefey, ML TI TOPEX/POSEIDON autonomous maneuver experiment (TAME) SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 21 EP 37 PG 17 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00002 ER PT S AU Gramling, CJ Long, AC Horstkamp, GM AF Gramling, CJ Long, AC Horstkamp, GM BE Culp, RD Odefey, ML TI Autonomous navigation integrated with spacecraft communication systems SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 NASA,GODDARD SPACE FLIGHT CTR,FLIGHT DYNAM SUPPORT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 39 EP 55 PG 17 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00003 ER PT S AU Ketchum, E AF Ketchum, E BE Culp, RD Odefey, ML TI Autonomous spacecraft orbit determination using the magnetic field and attitude information SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 NASA,GODDARD SPACE FLIGHT CTR,DIV SPECIAL PAYLOADS,ATTITUDE STABILIZAT & CONTROL BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 69 EP 81 PG 13 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00005 ER PT S AU Basilio, RR AF Basilio, RR BE Culp, RD Odefey, ML TI Flight system testbed verification of the Mars pathfinder attitude control system SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROP LAB,AVION SYST ENGN SECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 125 EP 144 PG 20 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00009 ER PT S AU Zimbelman, D Anderson, M Correll, T Schnurr, R Fennell, M AF Zimbelman, D Anderson, M Correll, T Schnurr, R Fennell, M BE Culp, RD Odefey, ML TI The attitude control system test-bed for SWAS and future SMEX missions SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 NASA,GODDARD SPACE FLIGHT CTR,ATTITUDE CONTROL & STABILIZAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 4 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 145 EP 163 PG 19 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00010 ER PT S AU Patel, K AF Patel, K BE Culp, RD Odefey, ML TI The Mars Global Surveyor Spacecraft Test Laboratory SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 173 EP 188 PG 16 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00012 ER PT S AU Sevaston, GE Craymer, L Breckenridge, W AF Sevaston, GE Craymer, L Breckenridge, W BE Culp, RD Odefey, ML TI GPS based attitude determination for spacecraft: System engineering design study and ground testbed results SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 189 EP 208 PG 20 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00013 ER PT S AU Whorton, M Calise, AJ AF Whorton, M Calise, AJ BE Culp, RD Odefey, ML TI Experimental investigation of robust control of flexible space structures SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,PRECIS POINTING CONTROL SYST,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 211 EP 230 PG 20 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00014 ER PT S AU Neat, GW OBrien, JF AF Neat, GW OBrien, JF BE Culp, RD Odefey, ML TI Micro-precision interferometer testbed: Fringe tracker control system SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 501 EP 515 PG 15 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00034 ER PT S AU Neilson, T Hilbert, K AF Neilson, T Hilbert, K BE Culp, RD Odefey, ML TI Extensions to the Galileo attitude control system for the Probe mission SO GUIDANCE AND CONTROL 1996 SE ADVANCES IN THE ASTRONAUTICAL SCIENCES LA English DT Proceedings Paper CT Annual Rocky Mountain Guidance and Control Conference CY FEB 07-11, 1996 CL BRECKENRIDGE, CO SP Amer Astronaut Soc, Rocky Mt Sect C1 CALTECH,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 SN 0065-3438 BN 0-87703-412-5 J9 ADV ASTRONAUT SCI PY 1996 VL 92 BP 647 EP 665 PG 19 WC Engineering, Aerospace SC Engineering GA BF88Q UT WOS:A1996BF88Q00043 ER PT B AU Bartlett, LM Stahle, CM Shu, P Barbier, LM Barthelmy, SD Gehrels, N Krizmanic, JF Kurczynski, P Palmer, D Parsons, A Teegarden, BJ Tueller, J AF Bartlett, LM Stahle, CM Shu, P Barbier, LM Barthelmy, SD Gehrels, N Krizmanic, JF Kurczynski, P Palmer, D Parsons, A Teegarden, BJ Tueller, J BE Hoover, RB Doty, FP TI Radiation damage and activation of CdZnTe by intermediate energy neutrons SO HARD X-RAY/GAMMA-RAY AND NEUTRON OPTICS, SENSORS, AND APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications CY AUG 07-08, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE CdZnTe; radiation damage; neutron damage; activation; annealing; spectroscopy C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Barthelmy, Scott/D-2943-2012; Parsons, Ann/I-6604-2012 NR 0 TC 11 Z9 11 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2247-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2859 BP 10 EP 16 DI 10.1117/12.245137 PG 7 WC Optics SC Optics GA BG07Y UT WOS:A1996BG07Y00002 ER PT B AU Stahle, CM Parsons, A Bartlett, LM Kurczynski, P Krizmanic, JF Barbier, LM Barthelmy, SD Birsa, F Gehrels, N Odom, J Palmer, D Sappington, C Shu, P Teegarden, BJ Tueller, J AF Stahle, CM Parsons, A Bartlett, LM Kurczynski, P Krizmanic, JF Barbier, LM Barthelmy, SD Birsa, F Gehrels, N Odom, J Palmer, D Sappington, C Shu, P Teegarden, BJ Tueller, J BE Hoover, RB Doty, FP TI CdZnTe strip detector for arc second imaging and spectroscopy SO HARD X-RAY/GAMMA-RAY AND NEUTRON OPTICS, SENSORS, AND APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications CY AUG 07-08, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers DE CdZnTe; strip detector; gamma-ray bursts; arc second imaging; spectroscopy; astronomical research; hard x-ray C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012; Tueller, Jack/D-5334-2012; Barthelmy, Scott/D-2943-2012; Parsons, Ann/I-6604-2012 NR 0 TC 6 Z9 6 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2247-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2859 BP 74 EP 84 DI 10.1117/12.245125 PG 11 WC Optics SC Optics GA BG07Y UT WOS:A1996BG07Y00010 ER PT B AU Coppenbarger, RA AF Coppenbarger, RA BE Lewandowski, RJ Haworth, LA Stephens, W Girolamo, HJ TI A sensor-based automated obstacle avoidance system for Nap-of-the-Earth rotorcraft missions SO HEAD-MOUNTED DISPLAYS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Head-Mounted Displays CY APR 08-10, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE obstacle avoidance; guidance; control; sensors; pilot interface; helmet-mounted display C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 1 Z9 1 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2116-2 J9 P SOC PHOTO-OPT INS PY 1996 VL 2735 BP 221 EP 232 DI 10.1117/12.241895 PG 12 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BF93F UT WOS:A1996BF93F00024 ER PT B AU Chai, AT Zhang, NL AF Chai, AT Zhang, NL BE Wang, BX TI Marangoni-Benard convection in an evaporating liquid thin layer SO HEAT TRANSFER SCIENCE AND TECHNOLOGY 1996 LA English DT Proceedings Paper CT 4th International Symposium on Heat Transfer (4th ISHT) CY OCT 07-11, 1996 CL BEIJING, PEOPLES R CHINA SP Tsinghua Univ, Inst Thermal Sci & Engn, Natl Nat Sci Fdn China, China State Educ Commiss, Chinese Soc Engn Thermophys, Amer Soc Mech Engineers, Japan Soc Mech Engineers DE Marangoni-Benard convection; evaporation; visualization; temperature gradient AB Marangoni-Benard convection in evaporating liquid thin layers has been investigated through flow visualization and temperature profile measurement. Twelve liquids, namely ethyl alcohol, methanol, chloroform, acetone, cyclohexane, benzine, methylene chloride, carbon tetrachloride, ethyl acetate, n-pentane, silicone oil (0.65 cSt.), and freon-113, were tested and convection patterns in thin layers of these samples were observed. Comparison among these tested samples shows that some liquids are sensitive to surface contamination from aluminum powder but some are not. The latter is excellent to be used for the investigation of surface-tension driven convection through visualization using the tracer. Two sample liquids, alcohol and freon-113 were particularly selected for systematic study. II was found that the wavelength of Benard cells would not change with thickness of the layer when it evaporates at room temperature. Special attention was focused on cases in which a liquid layer was cooled from below, and many interesting results were obtained. Convection patterns were recorded during the evaporation process and the patterns at certain time frame were compared. Benard cells were observed in thin layers with a nonlinear temperature profile and even with a zero or positive temperature gradient. Wavelength of the cells was found to increase as the evaporation progressed. RP Chai, AT (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU HIGHER EDUCATION PRESS PI BEIJING PA 55 SHATAN HOUJIE, BEIJING, PEOPLES R CHINA BN 7-04-005894-4 PY 1996 BP 323 EP 328 PG 6 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA BH11S UT WOS:A1996BH11S00046 ER PT B AU Zhang, NL Chai, AT AF Zhang, NL Chai, AT BE Wang, BX TI Effects of evaporation on thermocapillary flows in a liquid thin layer SO HEAT TRANSFER SCIENCE AND TECHNOLOGY 1996 LA English DT Proceedings Paper CT 4th International Symposium on Heat Transfer (4th ISHT) CY OCT 07-11, 1996 CL BEIJING, PEOPLES R CHINA SP Tsinghua Univ, Inst Thermal Sci & Engn, Natl Nat Sci Fdn China, China State Educ Commiss, Chinese Soc Engn Thermophys, Amer Soc Mech Engineers, Japan Soc Mech Engineers DE thermocapillary flow; Benard cells; evaporation; temperature profile; instability AB A series of experiments was conducted to investigate the thermocapillary flows in an evaporating liquid thin layer. Ethyl alcohol and freon-113 were used as the test liquids for their typical evaporation and convection characteristics. Both evaporating in open air and in a closed chamber were conducted. Visualization of the thermocapillary flow in the layers was performed through direct video recording in which aluminum powder was used as a tracer. Temperature profiles across Phe evaporating layers were determined by simultaneous temperature measurements through thermocouples deployed at different levels in the layer. The visualization shows that the evaporation condition of the layer obviously affects the thermocapillary flow. For example, once the evaporation is inhibited the convection dies out quickly. Benard cells were observed and recorded when the layer evaporate in open air at room temperature both with and without bottom cooling from below. Brisk Benard cells were observed in a freon-113 thin layer with a nonlinear temperature profile when it is cooled from below. More interesting results were obtained from a evaporating alcohol thin layer. Active Benard cells can be also observed in the layer with zero and even positive temperature gradient. In view of this experimental finding, the traditional explanations for Marangoni-Benard convection may not applicable to the case of evaporating layers. A new expression of Marangoni number dealing with evaporation rate and latent heat is suggested. A possible mechanism of Marangoni-Benard convection in an evaporating liquid thin layer which is called surface-tension-driven convection fueled by evaporation is presented and described briefly. RP Zhang, NL (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 2 Z9 2 U1 0 U2 0 PU HIGHER EDUCATION PRESS PI BEIJING PA 55 SHATAN HOUJIE, BEIJING, PEOPLES R CHINA BN 7-04-005894-4 PY 1996 BP 329 EP 334 PG 6 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA BH11S UT WOS:A1996BH11S00047 ER PT J AU Aellig, MR Grunwaldt, H Hefti, S Wurz, P Bochsler, P Axford, WI Balsiger, H Burgi, A Coplan, MA Galvin, AB Geiss, J Gliem, F Gloeckler, G Hilchenbach, M Hovestadt, D Hsieh, KC Ipavich, FM Judge, DL Kallenbach, R Klecker, B Lee, MA Livi, S Managadze, GG Marsch, E Mobius, E Neugebauer, M Ogawa, HS Reiche, KU Scholer, M Verigin, MI Wilken, B AF Aellig, MR Grunwaldt, H Hefti, S Wurz, P Bochsler, P Axford, WI Balsiger, H Burgi, A Coplan, MA Galvin, AB Geiss, J Gliem, F Gloeckler, G Hilchenbach, M Hovestadt, D Hsieh, KC Ipavich, FM Judge, DL Kallenbach, R Klecker, B Lee, MA Livi, S Managadze, GG Marsch, E Mobius, E Neugebauer, M Ogawa, HS Reiche, KU Scholer, M Verigin, MI Wilken, B TI Solar corona diagnostic with solar wind iron charge spectra SO HELVETICA PHYSICA ACTA LA English DT Article; Proceedings Paper CT Autumn Meeting of the Swiss-Physical-Society CY OCT 10, 1996 CL ZURICH, SWITZERLAND SP Swiss Phys Soc AB Matter flowing away from the solar surface becomes highly ionized in the corona (T approximate to 2 . 10(6)K) by collisions with electrons. Due to the decreasing electron density with increasing distance from the solar surface, the charge state distributions freeze and remain unaltered throughout the interplanetary medium. This is why charge spectra measured at 1 AU are a valuable diagnostic tool for temperature and density variations in the inner solar corona. Preliminary results of iron charge spectra obtained from the SOHO CELLAS CTOF mass spectrometer indicate a patchy structure of the corona at scales of approximate to 10(4) km. C1 MAX PLANCK INST AERON,D-37189 KATLENBURG DUHM,GERMANY. UNIV MARYLAND,DEPT PHYS & ASTRON,COLLEGE PK,MD 20742. INT SPACE SCI INST,CH-3012 BERN,SWITZERLAND. MAX PLANCK INST EXTRATERR PHYS,D-85740 BRAUNSCHWEIG,GERMANY. UNIV ARIZONA,DEPT PHYS,TUCSON,AZ 85721. UNIV SO CALIF,CTR SPACE SCI,LOS ANGELES,CA 90089. UNIV NEW HAMPSHIRE,EOS,DURHAM,NH 03824. INST SPACE PHYS,MOSCOW,RUSSIA. JET PROPULS LAB,PASADENA,CA 91103. RP Aellig, MR (reprint author), UNIV BERN,INST PHYS,CH-3012 BERN,SWITZERLAND. RI Galvin, Antoinette/A-6114-2013 NR 1 TC 0 Z9 0 U1 0 U2 0 PU BIRKHAUSER VERLAG AG PI BASEL PA PO BOX 133 KLOSTERBERG 23, CH-4010 BASEL, SWITZERLAND SN 0018-0238 J9 HELV PHYS ACTA JI Helv. Phys. Acta PY 1996 VL 69 SU 2 BP 49 EP 50 PG 2 WC Physics, Multidisciplinary SC Physics GA WC413 UT WOS:A1996WC41300013 ER PT S AU Reames, DV AF Reames, DV BE Ramaty, R Mandzhavidze, N Hua, XM TI Energetic particles from solar flares and coronal mass ejections SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 34 Z9 35 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 35 EP 44 PG 10 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00002 ER PT S AU Ramaty, R Mandzhavidze, N Kozlovsky, B AF Ramaty, R Mandzhavidze, N Kozlovsky, B BE Ramaty, R Mandzhavidze, N Hua, XM TI Solar atmospheric abundances from gamma ray spectroscopy SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 79 Z9 80 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 172 EP 183 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00015 ER PT S AU Mandzhavidze, N Ramaty, R Bertsch, DL Schneid, EJ AF Mandzhavidze, N Ramaty, R Bertsch, DL Schneid, EJ BE Ramaty, R Mandzhavidze, N Hua, XM TI Pion decay and nuclear line emissions from the 1991 June 11 flare SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 19 Z9 20 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 225 EP 236 PG 12 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00021 ER PT S AU Zarro, DM Schwartz, RA AF Zarro, DM Schwartz, RA BE Ramaty, R Mandzhavidze, N Hua, XM TI Energetics of the DC-electric field model SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 NASA,GODDARD SPACE FLIGHT CTR,APPL RES CORP,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 359 EP 367 PG 9 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00036 ER PT S AU Holman, GD AF Holman, GD BE Ramaty, R Mandzhavidze, N Hua, XM TI Particle acceleration by DC electric fields in the impulsive phase of solar flares SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RI Holman, Gordon/C-9548-2012 NR 0 TC 3 Z9 3 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 479 EP 492 PG 14 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00048 ER PT S AU Dennis, BR AF Dennis, BR BE Ramaty, R Mandzhavidze, N Hua, XM TI X-ray aspects of the high energy solar physics workshop: Rapporteur paper I SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. RI Dennis, Brian/C-9511-2012 NR 0 TC 1 Z9 1 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 519 EP 532 PG 14 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00052 ER PT S AU Ramaty, R Mandzhavidze, N AF Ramaty, R Mandzhavidze, N BE Ramaty, R Mandzhavidze, N Hua, XM TI Implications of solar flare charged particle, gamma ray and neutron observations: Rapporteur paper II for the high energy solar physics workshop SO HIGH ENERGY SOLAR PHYSICS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT High Energy Solar Physics Workshop CY AUG 16-18, 1995 CL GODDARD SPACE FLIGHT CTR, GREENBELT, MD SP Amer Inst Phys HO GODDARD SPACE FLIGHT CTR C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 8 Z9 8 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-542-9 J9 AIP CONF PROC PY 1996 IS 374 BP 533 EP 543 PG 11 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BF93Y UT WOS:A1996BF93Y00053 ER PT B AU Lincoln, W AF Lincoln, W BE Faust, NL TI Simulation and visualization of Martian rover SO HIGH-FIDELITY SIMULATION FOR TRAINING, TEST SUPPORT, MISSION REHEARSAL, AND CIVILIAN APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on High-Fidelity Simulation for Training, Test Support, Mission Rehearsal, and Civilian Applications CY APR 08-09, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE visualizaiton; simulation; rover; computer; graphics; Mars; JPL C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2121-9 J9 P SOC PHOTO-OPT INS PY 1996 VL 2740 BP 98 EP 105 DI 10.1117/12.242971 PG 8 WC Optics SC Optics GA BG01V UT WOS:A1996BG01V00012 ER PT S AU Harding, AK AF Harding, AK BE Rothschild, RE Lingenfelter, RE TI The nature of plerions surrounding soft gamma-ray repeaters SO HIGH VELOCITY NEUTRON STARS AND GAMMA-RAY BURSTS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT Workshop on High Velocity Neutron Stars and Gamma-Ray Bursts CY MAR, 1995 CL LA JOLLA, CA C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI Harding, Alice/D-3160-2012 NR 0 TC 1 Z9 1 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-593-3 J9 AIP CONF PROC PY 1996 IS 366 BP 118 EP 122 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF72X UT WOS:A1996BF72X00018 ER PT S AU Baring, MG Harding, AK AF Baring, MG Harding, AK BE Rothschild, RE Lingenfelter, RE TI Photon splitting in magnetar models of soft gamma repeaters SO HIGH VELOCITY NEUTRON STARS AND GAMMA-RAY BURSTS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT Workshop on High Velocity Neutron Stars and Gamma-Ray Bursts CY MAR, 1995 CL LA JOLLA, CA C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI Harding, Alice/D-3160-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-593-3 J9 AIP CONF PROC PY 1996 IS 366 BP 129 EP 133 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF72X UT WOS:A1996BF72X00020 ER PT S AU Graziani, C Lamb, DQ AF Graziani, C Lamb, DQ BE Rothschild, RE Lingenfelter, RE TI Likelihood methods and classical burster repetition SO HIGH VELOCITY NEUTRON STARS AND GAMMA-RAY BURSTS SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT Workshop on High Velocity Neutron Stars and Gamma-Ray Bursts CY MAR, 1995 CL LA JOLLA, CA C1 NASA,GODDARD SPACE FLIGHT CTR,NRC,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AIP PRESS PI WOODBURY PA AMERICAN INSTITUTE OF PHYSICS 500 SUNNYSIDE BOULEVARD, WOODBURY, NY 11797-2999 SN 0094-243X BN 1-56396-593-3 J9 AIP CONF PROC PY 1996 IS 366 BP 196 EP 200 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BF72X UT WOS:A1996BF72X00028 ER PT B AU Ahumada, AJ Beard, BL AF Ahumada, AJ Beard, BL BE Rogowitz, BE Allebach, JP TI Object detection in a noisy scene SO HUMAN VISION AND ELECTRONIC IMAGING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Human Vision and Electronic Imaging CY JAN 29-FEB 01, 1996 CL SAN JOSE, CA SP Soc Imaging Sci & Technol, Soc Photo Opt Instrumentat Engineers DE image quality; target detection; noise; vision models; contrast; sensitivity C1 NASA,AMES RES CTR,HUMAN & SYST TECHNOL BRANCH,MOFFETT FIELD,CA 94035. NR 0 TC 9 Z9 9 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2031-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2657 BP 190 EP 199 PG 10 WC Computer Science, Artificial Intelligence; Optics; Psychology SC Computer Science; Optics; Psychology GA BF76E UT WOS:A1996BF76E00019 ER PT B AU Watson, AB Yang, GY Solomon, JA Villasenor, J AF Watson, AB Yang, GY Solomon, JA Villasenor, J BE Rogowitz, BE Allebach, JP TI Visual thresholds for wavelet quantization error SO HUMAN VISION AND ELECTRONIC IMAGING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Human Vision and Electronic Imaging CY JAN 29-FEB 01, 1996 CL SAN JOSE, CA SP Soc Imaging Sci & Technol, Soc Photo Opt Instrumentat Engineers DE wavelet; human; visual perception; quantization; compression; image; subband coding; vision; perceptually lossless; perfect reconstruction filter bank C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 12 Z9 12 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2031-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2657 BP 382 EP 392 DI 10.1117/12.238735 PG 11 WC Computer Science, Artificial Intelligence; Optics; Psychology SC Computer Science; Optics; Psychology GA BF76E UT WOS:A1996BF76E00037 ER PT B AU deKoter, A Heap, SR Hubeny, I Lanz, T AF deKoter, A Heap, SR Hubeny, I Lanz, T BE Jeffery, CS Heber, U TI Non-LTE spectroscopic analysis of the wind of the central star of NGC 6543 SO HYDROGEN DEFICIENT STARS SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 2nd International Colloquium on Hydrogen-Deficient Stars CY AUG 28-SEP 01, 1995 CL BAMBERG, GERMANY C1 GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI heap, sara/E-2237-2012 NR 0 TC 8 Z9 8 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-17-1 J9 ASTR SOC P PY 1996 VL 96 BP 141 EP 144 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32F UT WOS:A1996BG32F00022 ER PT B AU Hubeny, I Lanz, T AF Hubeny, I Lanz, T BE Jeffery, CS Heber, U TI Fully line-blanketed NLTE model atmospheres for hot hydrogen-deficient stars SO HYDROGEN DEFICIENT STARS SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 2nd International Colloquium on Hydrogen-Deficient Stars CY AUG 28-SEP 01, 1995 CL BAMBERG, GERMANY C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 1-886733-17-1 J9 ASTR SOC P PY 1996 VL 96 BP 249 EP 260 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BG32F UT WOS:A1996BG32F00047 ER PT J AU Gladstone, GR Allen, M Yung, YL AF Gladstone, GR Allen, M Yung, YL TI Hydrocarbon photochemistry in the upper atmosphere of Jupiter SO ICARUS LA English DT Review ID ABSOLUTE RATE-CONSTANT; I-LYMAN-ALPHA; METHYL-RADICAL RECOMBINATION; DIPOLE OSCILLATOR-STRENGTHS; JOVIAN AURORAL STRATOSPHERE; HIGH-TEMPERATURE REACTIONS; ABSORPTION CROSS-SECTIONS; SOLAR SPECTRAL IRRADIANCE; HUBBLE SPACE TELESCOPE; ION-MOLECULE REACTIONS AB The hydrocarbon photochemistry in the upper atmosphere of Jupiter is investigated using a one-dimensional, photochemical-diffusive, and diurnally averaged model. The important chemical cycles and pathways among the major species are outlined and a standard model for the North Equatorial Belt region is examined in detail. It is found that several traditionally dominant chemical pathways among the C and C-2 species are replaced in importance by cycles involving C-C-4 species. The pressure and altitude profiles of mixing ratios for several observable hydrocarbon species are compared with available ultraviolet- and infrared-derived abundances. The results of sensitivity studies on the standard model with respect to variations in eddy diffusion profile, solar flux, atomic hydrogen influx, latitude, temperature, and important chemical reaction rates are presented. Measured and calculated airglow emissions of He at 584 Angstrom and H at 1216 Angstrom are also used to provide some constraints on the range of model parameters. The relevance of the model results to the upcoming Galileo mission is briefly discussed. The model is subject to considerable improvement; there is a great need for laboratory measurements of basic reaction rates and photodissociation quantum yields, even for such simple species as methylacetylene and allene. Until such laboratory measurements exist there will be considerable uncertainty in the understanding of the C-3 and higher hydrocarbons in the atmospheres of the jovian planets. (C) 1996 Academic Press, Inc C1 CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,PASADENA,CA 91125. CALTECH,DIV GEOL & PLANETARY SCI,PASADENA,CA 91125. RP Gladstone, GR (reprint author), SW RES INST,DEPT SPACE SCI,6220 CULEBRA RD,PO DRAWER 28510,SAN ANTONIO,TX 78228, USA. NR 237 TC 197 Z9 197 U1 6 U2 22 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 JAN PY 1996 VL 119 IS 1 BP 1 EP 52 DI 10.1006/icar.1996.0001 PG 52 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000001 PM 11539126 ER PT J AU Killen, RM Flasar, FM AF Killen, RM Flasar, FM TI Microwave sounding of the giant planets SO ICARUS LA English DT Article ID RADIO OCCULTATION MEASUREMENTS; LABORATORY MEASUREMENTS; VOYAGER MEASUREMENTS; HELIUM ABUNDANCE; AMMONIA NH3; URANUS; ATMOSPHERE; NEPTUNE; ABSORPTION; JUPITER AB We systematically explore the sensitivity of the microwave spectra of the giant planets to the vertical profiles of temperature and condensible absorbers. We find that the spectrum at centimeter wavelengths is largely insensitive to vertical profile of temperature, but generally is sensitive to the relative humidities (RH) of the condensible absorbers. Under a wide variety of plausible conditions, gaseous ammonia dominates the microwave opacity, and the spectra can be used to retrieve the vertical profile of its relative humidity. We examine the ammonia relative humidity profiles implied by the spectra of Uranus and Saturn. For moderate enhancements of H2S above its solar value (<10), the microwave spectrum of Uranus depends primarily on the NH3 relative humidity at wavelengths longward of 1 cm, out to at least 5 cm, depending on whether there are thick water clouds. The implied vertical variation in the relative humidity of NH3 is small in the temperature range 140 to 250 K, confined to the range 0.05 to 0.35%. The reported meridional variation in brightness temperatures at 2 and 6 cm can be interpreted as a factor of 10 variation in the relative humidity, with the largest relative humidities occurring near 20 degrees S, where temperatures are coldest. Part of the 6-cm brightness temperature variation may be attributable to meridional variations in the opacity of thick water clouds. On Saturn, the vertical variation of relative humidity is greater. At temperatures less than 152 K, ammonia is saturated, but at deeper levels, it follows a curve such at d In RH/d In P = -4.5, which corresponds nearly to a constant mole fraction, down to temperatures >230 K. (C) 1996 Academic Press, Inc C1 NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,GREENBELT,MD 20771. RP Killen, RM (reprint author), SW RES INST,DEPT SPACE SCI & INSTRUMENTAT,6220 CULEBRA RD,SAN ANTONIO,TX 78228, USA. RI Flasar, F Michael/C-8509-2012 NR 69 TC 4 Z9 4 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 JAN PY 1996 VL 119 IS 1 BP 67 EP 89 DI 10.1006/icar.1996.0003 PG 23 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000003 ER PT J AU Yelle, RV McGrath, MA AF Yelle, RV McGrath, MA TI Ultraviolet spectroscopy of the SL9 impact sites .1. The 175-230 nm region SO ICARUS LA English DT Article ID PHOTOABSORPTION CROSS-SECTIONS; HIGH-RESOLUTION; C2H2; CS2; ATMOSPHERE; AEROSOLS; PLANETS; SOLAR AB We present a comprehensive analysis of spectra in the 175-230 nm wavelength region obtained by the Faint Object Spectrograph of the Hubble Space Telescope (HST) to determine the abundance of molecular species in the vicinity of the G and L impact sites. Data were obtained on July 18, roughly 3 hr after the G impact, on August 9, and on August 23. All spectra clearly show signatures of aerosols and gaseous CS2 and NH3. The spectra obtained on July 18 also show the spectral signature of H2S. To determine the abundance of gases and aerosols we compare the observations with calculations based on the scattering properties of three-layer models for the atmosphere. We are able to fit the aerosol-dominated portions of the spectra with aerosol distributions similar to those derived from HST imaging observations by West et al. (Science, 267, 1296-1301, 1995). On all three dates we find that CS2 resides at lower pressures than H2S, NH3, and the bulk of the aerosols. The CS2 column abundance is approximately 10(-7) g-cm(-2) on July 18, a factor of 2-3 less on August 9, and another factor of 2 less on August 23. NH3 is confined to pressures greater than 5 mbar with a mole fraction of 1 x 10(-7) on July 18 and August 9, decreasing to 3 x 10(-8) on August 23. H2S is also confined to pressures greater than 5 mbar with a mole fraction of 5 x 10(-8) on July 18. These mole fractions depend upon assumptions about the aerosol distribution and are derived from models with an aerosol column density of 2 x 10(9) cm(-2) Using different aerosol models, it is possible to obtain adequate fits to the spectra with mole fractions of H2S and NH3 that are 2.5 and 7.5 times smaller. The spectra show no evidence for SO2 absorption and we derive an upper limit of 10(-7) g-cm(-2) for the July 18 spectrum, assuming that SO2 has the same altitude distribution as CS2. Using the same assumptions we derive upper limits of 10(-6) and 3 x 10(-8) for OCS and SO. There is no compelling evidence for either H2O or C2H2 but both can be tolerated with mole fractions of 1 x 10(-7) and 3 x 10(-7), respectively. The altitude distributions of CS2, H2S, and NH3 suggest that CS2 was created by chemistry in the plume but that H2S and NH3 were injected into the stratosphere from below by upwelling over spatial scales of thousands of kilometers associated with the impact. The presence of H2S on July 18 suggests that the G fragment penetrated at least as deep as the NH4-SH clouds. (C) 1996 Academic Press, lnc. C1 SPACE TELESCOPE SCI INST, BALTIMORE, MD 21218 USA. RP Yelle, RV (reprint author), NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. NR 47 TC 24 Z9 24 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 0019-1035 J9 ICARUS JI Icarus PD JAN PY 1996 VL 119 IS 1 BP 90 EP 111 DI 10.1006/icar.1996.0004 PG 22 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000004 ER PT J AU Hutzell, WT McKay, CP Toon, OB Hourdin, F AF Hutzell, WT McKay, CP Toon, OB Hourdin, F TI Simulations of titan's brightness by a two-dimensional haze model SO ICARUS LA English DT Article ID VOYAGER INFRARED OBSERVATIONS; VERTICAL-DISTRIBUTION; OPTICAL-PROPERTIES; PHYSICAL MODEL; ATMOSPHERE; PHOTOCHEMISTRY; SCATTERING; AEROSOLS; TEMPERATURE; NEPTUNE AB We have used a 2-D microphysics model to study the effects of atmospheric motions on the albedo of Titan's thick haze layer. We compare our results to the observed variations of Titan's brightness with season and latitude. We use two wind fields; the first is a simple pole-to-pole Hadley cell that reverses twice a year. The second is based on the results of a preliminary Titan GCM. Seasonally varying wind fields, with horizontal velocities of about 1 cm sec(-1) at optical depth unity, are capable of producing the observed change in geometric albedo of about 10% over the Titan year. Neither of the two wind fields can adequately reproduce the latitudinal distribution of reflectivity seen by Voyager. At visible wavelengths, where only haze opacity is important, upwelling produces darkening by increasing the particle size at optical depth unity. This is due to the suspension of larger particles as well as the lateral removal of smaller particles from the top of the atmosphere. At UV wavelengths and at 0.89 mu m the albedo is determined by the competing effects of the gas and the haze material. Gas is bright in the UV and dark at 0.89 mu m. Haze transport at high altitudes controls the UV albedo and transport at low altitude controls the 0.89-mu m albedo. Comparisons between the hemispheric contrast at UV, visible, and IR wavelengths can be diagnostic of the vertical structure of the wind field on Titan. (C) 1996 Academic Press, Inc. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. ECOLE NORMALE SUPER,F-75231 PARIS,FRANCE. RP Hutzell, WT (reprint author), GEORGIA INST TECHNOL,SCH EARTH & ATMOSPHER SCI,ATLANTA,GA 30332, USA. NR 39 TC 32 Z9 32 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 JAN PY 1996 VL 119 IS 1 BP 112 EP 129 DI 10.1006/icar.1996.0005 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000005 PM 11539127 ER PT J AU Hiroi, T Vilas, F Sunshine, JM AF Hiroi, T Vilas, F Sunshine, JM TI Discovery and analysis of minor absorption bands in S-asteroid visible reflectance spectra SO ICARUS LA English DT Article ID FEATURES; BELT AB Two minor absorption bands in the visible range of the S-class asteroid reflectance spectra have been discovered. The CCD reflectance spectra of 10 S asteroids were deconvolved using the modified Gaussian model, and 9 of them are shown to have two minor absorption bands centered around 0.60 and 0.67 mu m in wavelength. Among the tested common geologic minerals, the obtained absorption-band centers and widths of the S asteroids were most consistent with those of oxidized Fe-Ni metal and spinel-group minerals. These results are consistent with the idea that the S asteroids are made of stony-iron-like material and the recent identification of two spinel-bearing S asteroids based on the comparison of the 1- and 2-mu m band strengths. Because both oxidized iron compounds and spinel-group minerals have spectral features very different from the S-asteroid ones in a wider wavelength region, they must be at most minor constituents in the S-asteroid surface regoliths. (C) 1996 Academic Press,Inc. C1 SETS TECHNOL INC, MILILANI, HI 96789 USA. NASA, LYNDON B JOHNSON SPACE CTR, SN3, HOUSTON, TX 77058 USA. NR 21 TC 29 Z9 29 U1 0 U2 5 PU ACADEMIC PRESS INC ELSEVIER SCIENCE PI SAN DIEGO PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA SN 0019-1035 EI 1090-2643 J9 ICARUS JI Icarus PD JAN PY 1996 VL 119 IS 1 BP 202 EP 208 DI 10.1006/icar.1996.0012 PG 7 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000012 ER PT J AU Roush, TL Cruikshank, DP Pollack, JB Young, EF Bartholomew, MJ AF Roush, TL Cruikshank, DP Pollack, JB Young, EF Bartholomew, MJ TI Near-infrared spectral geometric albedos of Charon and Pluto: Constraints on Charon's surface composition SO ICARUS LA English DT Article AB The spectral geometric albedos of Charon and Pluto are derived at near-infrared wavelengths (1.4-2.5 mu m) from measurements obtained in 1987. Comparisons of these to theoretical calculations are used to place constraints on the identity and relative abundances of surface ices on Charon. These comparisons suggest that widespread regions of pure CH4 ice do not occur on Charon and that if CH4 is abundant on Charon then it is large grained (approximate to 5 mm) and is likely mixed at the granular level with H2O ice, and possibly CO2 ice. (C) 1996 Academic Press, Inc. C1 NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035. STERLING SOFTWARE,PALO ALTO,CA 94030. RP Roush, TL (reprint author), SAN FRANCISCO STATE UNIV,DEPT GEOSCI,1600 HOLLOWAY AVE,SAN FRANCISCO,CA 94132, USA. NR 15 TC 16 Z9 16 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 0019-1035 J9 ICARUS JI Icarus PD JAN PY 1996 VL 119 IS 1 BP 214 EP 218 DI 10.1006/icar.1996.0014 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA TU690 UT WOS:A1996TU69000014 ER PT B AU McCutcheon, R AF McCutcheon, R GP IEEE TI FM modulation increasing baseband noise in the presence of an IBOC digital signal SO ICCE - INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS, 1996 DIGEST OF TECHNICAL PAPERS LA English DT Proceedings Paper CT 1996 International Conference on Consumer Electronics (1996 ICCE) CY JUN 05-07, 1996 CL ROSEMONT, IL SP IEEE, Consumer Electr Soc C1 NASA,LEWIS RES CTR,EIA DIGITAL AUDIO RADIO LAB,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3029-3 PY 1996 BP 58 EP 59 DI 10.1109/ICCE.1996.517208 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG11Z UT WOS:A1996BG11Z00026 ER PT B AU Boyadzhyan, V AF Boyadzhyan, V GP IEEE TI Waveguide transfer switch driver multichip module SO ICECS 96 - PROCEEDINGS OF THE THIRD IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS, AND SYSTEMS, VOLS 1 AND 2 LA English DT Proceedings Paper CT 3rd IEEE International Conference on Electronics, Circuits, and Systems (ICECS 96) CY OCT 13-16, 1996 CL RHODES, GREECE SP Univ Patras, Greece, IEEE CAS Soc Reg 8 AB This paper summarizes and reports a radiation hardened Spacecraft Integrated Circuit Technology that has been delivered for flight applications to be flown on board Cassini Spacecraft in 1997 A.D. The Multichip Module has been Designed to have an operating life of fifteen (15) years with appropriate Derating guidelines for extreme reliability. It also has been designed to have the fail safe capability of unsurpassed quality and reliability. RP Boyadzhyan, V (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91125, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3650-X PY 1996 BP 339 EP 342 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BH56B UT WOS:A1996BH56B00085 ER PT B AU Buehler, MG Ryan, MA AF Buehler, MG Ryan, MA GP IEEE TI Gas sensor test chip SO ICMTS 1996 - 1996 IEEE INTERNATIONAL CONFERENCE ON MICROELECTRONIC TEST STRUCTURES, PROCEEDINGS LA English DT Proceedings Paper CT 1996 IEEE International Conference on Microelectronic Test Structures (ICMTS 1996) CY MAR 25-28, 1996 CL TRENT, ITALY SP IEEE, Electron Devices Soc C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-2783-7 PY 1996 BP 105 EP 110 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG12J UT WOS:A1996BG12J00019 ER PT B AU Duong, TA Stubberud, AR Daud, T Thakoor, A AF Duong, TA Stubberud, AR Daud, T Thakoor, A GP IEEE TI Cascade error projection: A new learning algorithm SO ICNN - 1996 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOLS. 1-4 LA English DT Proceedings Paper CT 1996 IEEE International Conference on Neural Networks (ICNN 96) CY JUN 02-06, 1996 CL WASHINGTON, DC SP IEEE C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3211-3 J9 IEEE IJCNN PY 1996 BP 229 EP 234 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BG23M UT WOS:A1996BG23M00040 ER PT B AU Langenbacher, H Zee, F Daud, T Thakoor, A AF Langenbacher, H Zee, F Daud, T Thakoor, A GP IEEE TI Radiation behavior of analog neural network chips SO ICNN - 1996 IEEE INTERNATIONAL CONFERENCE ON NEURAL NETWORKS, VOLS. 1-4 LA English DT Proceedings Paper CT 1996 IEEE International Conference on Neural Networks (ICNN 96) CY JUN 02-06, 1996 CL WASHINGTON, DC SP IEEE C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3211-3 J9 IEEE IJCNN PY 1996 BP 943 EP 950 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BG23M UT WOS:A1996BG23M00167 ER PT S AU Mondt, JF AF Mondt, JF BE Chetty, PRK Jackson, WD TI Jupiter explorer using microspacecraft and bimodal reactor system SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 35 EP 40 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00006 ER PT S AU Carr, GA AF Carr, GA BE Chetty, PRK Jackson, WD TI Pluto express power system architecture SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,POWER SYST ENGN GRP,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 47 EP 51 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00008 ER PT S AU Mondt, JF AF Mondt, JF BE Chetty, PRK Jackson, WD TI Aerospace gas/liquid separator for terrestrial applications SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,SPACE POWER TECHNOL TRANSFER PROJECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 109 EP 113 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00019 ER PT S AU Fincannon, J Delleur, A Green, R Hojnicki, J AF Fincannon, J Delleur, A Green, R Hojnicki, J BE Chetty, PRK Jackson, WD TI Load-following power timeline analyses for the International Space Station SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 185 EP 190 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00033 ER PT S AU Roth, ME Taylor, LM Hansen, IG AF Roth, ME Taylor, LM Hansen, IG BE Chetty, PRK Jackson, WD TI Status of electrical actuator applications SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 4 Z9 4 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 191 EP 196 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00034 ER PT S AU Hall, DK Layton, SD AF Hall, DK Layton, SD BE Chetty, PRK Jackson, WD TI Hybrid electrical power source testing for electromechanical actuation applications SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,ELECT POWER BRANCH,MSFC,AL 35812. NR 0 TC 1 Z9 1 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 227 EP 232 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00040 ER PT S AU Gluck, PR Morales, S AF Gluck, PR Morales, S BE Chetty, PRK Jackson, WD TI Applying a general spacecraft power subsystem architecture to perform multimission simulation SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 304 EP 309 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00053 ER PT S AU Ratnakumar, BV Timmerman, P Perrone, D DiStefano, S AF Ratnakumar, BV Timmerman, P Perrone, D DiStefano, S BE Chetty, PRK Jackson, WD TI Performance characteristics of an aerospace nickel hydrogen cell experimental data and theoretical predictions SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 JET PROP LAB,ELECTROCHEM TECHNOL GRP,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 374 EP 379 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00065 ER PT S AU Rao, G Vaidyanathan, H AF Rao, G Vaidyanathan, H BE Chetty, PRK Jackson, WD TI Comparison of cell encapsulation technologies for single pressure vessel nickel-hydrogen battery SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 384 EP 388 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00067 ER PT S AU Brewer, JC Jackson, LG Lurie, C Foroozan, S AF Brewer, JC Jackson, LG Lurie, C Foroozan, S BE Chetty, PRK Jackson, WD TI Real-time mission simulation test for AXAF-I SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 389 EP 393 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00068 ER PT S AU Sherwood, R Deligiannis, F AF Sherwood, R Deligiannis, F BE Chetty, PRK Jackson, WD TI TOPEX/Poseidon electrical power system-performance SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 399 EP 404 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00070 ER PT S AU Deligiannis, F Blosiu, JO Perrone, D DiStefano, S AF Deligiannis, F Blosiu, JO Perrone, D DiStefano, S BE Chetty, PRK Jackson, WD TI NASA battery testbed: Lessons learned applications to orbiting spacecraft SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 405 EP 409 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00071 ER PT S AU Sullivan, RM Hoffman, CG Rao, GM AF Sullivan, RM Hoffman, CG Rao, GM BE Chetty, PRK Jackson, WD TI AMPTE/CCE battery and charger performance SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 410 EP 415 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00072 ER PT S AU Perrone, DE Klekotka, M DiStefano, S AF Perrone, DE Klekotka, M DiStefano, S BE Chetty, PRK Jackson, WD TI The effect of cell design and storage conditions on the cycle life performance silver-zinc cells SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 JET PROP LAB,ELECTROCHEM TECHNOL GRP,PASADENA,CA 91109. NR 0 TC 3 Z9 3 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 416 EP 420 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00073 ER PT S AU Jallice, DE Ahmad, AJ Rao, GM AF Jallice, DE Ahmad, AJ Rao, GM BE Chetty, PRK Jackson, WD TI The Bruno B Rossi X-ray Timing Explorer (RXTE) battery design and performance SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GODDARD SPACE FLIGHT CTR,SPACE POWER APPLICAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 421 EP 426 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00074 ER PT S AU Woo, MJ AF Woo, MJ BE Chetty, PRK Jackson, WD TI Drag and flow pattern around the truss structure of the international space station using molecular dynamics SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 433 EP 437 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00076 ER PT S AU Mankins, JC AF Mankins, JC BE Chetty, PRK Jackson, WD TI A fresh look at space solar power SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,OFF SPACE ACCESS & TECHNOL,ADV CONCEPTS OFF,WASHINGTON,DC 20546. NR 0 TC 3 Z9 3 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 451 EP 456 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00080 ER PT S AU Dickinson, RM AF Dickinson, RM BE Chetty, PRK Jackson, WD TI Issues in microwave power systems engineering SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 463 EP 467 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00082 ER PT S AU Baez, AN LebronVelilla, RC Mackin, M Iler, T AF Baez, AN LebronVelilla, RC Mackin, M Iler, T BE Chetty, PRK Jackson, WD TI The Small Spacecraft Technology Initiative Photovoltaic Regulator Kit Experiment (PRKE) SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR MS3015,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 513 EP 518 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00091 ER PT S AU Button, RM AF Button, RM BE Chetty, PRK Jackson, WD TI An advanced photovoltaic array regulator module SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 5 Z9 5 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 519 EP 524 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00092 ER PT S AU Barry, RK AF Barry, RK BE Chetty, PRK Jackson, WD TI Conversion from full array shunt to partial array shunt topology for two small explorer-class, near-earth orbiting scientific satellites SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GODDARD SPACE FLIGHT CTR,SPACE POWER APPLICAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 525 EP 528 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00093 ER PT S AU Kimnach, GL AF Kimnach, GL BE Chetty, PRK Jackson, WD TI Design of a Power Management and Distribution System for a Thermionic-Diode powered spacecraft SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 529 EP 533 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00094 ER PT S AU Niedra, JM Gerber, SS AF Niedra, JM Gerber, SS BE Chetty, PRK Jackson, WD TI Improved L-C resonant decay technique for Q measurement of quasilinear power inductors: New results for MPP and ferrite powdered cores SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NYMA INC,NASA,LEWIS RES CTR GRP,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 566 EP 571 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00100 ER PT S AU Keys, DJ Rao, GM Wannemacher, HE Bennett, CW AF Keys, DJ Rao, GM Wannemacher, HE Bennett, CW BE Chetty, PRK Jackson, WD TI Evaluation of earth observing system AM-1 battery cell bypass protection SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 572 EP 576 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00101 ER PT S AU Gerber, SS Patterson, R Ray, B Stell, C AF Gerber, SS Patterson, R Ray, B Stell, C BE Chetty, PRK Jackson, WD TI Performance of a spacecraft DC-DC converter breadboard modified for low temperature operation SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NYMA INC,NASA,LEWIS RES CTR GRP,CLEVELAND,OH 44135. NR 0 TC 3 Z9 3 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 592 EP 598 PG 7 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00105 ER PT S AU Das, RSL Krauthamer, S Frisbee, RH AF Das, RSL Krauthamer, S Frisbee, RH BE Chetty, PRK Jackson, WD TI Evaluation of cryogenic power conditioning subsystems for electric propulsion spacecraft SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 605 EP 610 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00107 ER PT S AU Jaworske, DA AF Jaworske, DA BE Chetty, PRK Jackson, WD TI Apparatus to measure the reflectivity of silver and rhodium mirrors at elevated temperatures SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 647 EP 649 PG 3 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00114 ER PT S AU Davis, JM Wanhalnen, JS AF Davis, JM Wanhalnen, JS BE Chetty, PRK Jackson, WD TI Solar dynamic power system on the International Space Station SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 656 EP 659 PG 4 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00116 ER PT S AU Shaltens, RK Mason, LS AF Shaltens, RK Mason, LS BE Chetty, PRK Jackson, WD TI 500 hours of operational experience from a solar dynamic power system SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 660 EP 665 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00117 ER PT S AU Caillat, T Fleurial, JP AF Caillat, T Fleurial, JP BE Chetty, PRK Jackson, WD TI Zn-Sb alloys for thermoelectric power generation SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 8 Z9 8 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 905 EP 909 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00159 ER PT S AU Fleurial, JP Caillat, T Borshchevsky, A AF Fleurial, JP Caillat, T Borshchevsky, A BE Chetty, PRK Jackson, WD TI Low thermal conductivity skutterudite materials for high performance thermoelectric power generation SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 914 EP 919 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00161 ER PT S AU Good, BS Chubb, DL Lowe, RA AF Good, BS Chubb, DL Lowe, RA BE Chetty, PRK Jackson, WD TI Optimization study of selective emitter thermophotovoltaic systems SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 1007 EP 1012 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00177 ER PT S AU Kankam, MD Rauch, JS AF Kankam, MD Rauch, JS BE Chetty, PRK Jackson, WD TI Transient and steady-state performance of Space Power Research Engine with resistive/motor loads SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 1277 EP 1282 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00226 ER PT S AU Benner, SM Martins, MS AF Benner, SM Martins, MS BE Chetty, PRK Jackson, WD TI Development of a heat-driven pulse pump for spacecraft applications SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 1416 EP 1420 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00249 ER PT S AU Das, RSL Krauthamer, S Bulawka, A AF Das, RSL Krauthamer, S Bulawka, A BE Chetty, PRK Jackson, WD TI High performance low cost power conditioning subsystems using Smart Power Power Integrated Circuits in photovoltaic power systems SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 1685 EP 1690 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00298 ER PT S AU Ferguson, DC AF Ferguson, DC BE Chetty, PRK Jackson, WD TI The role of space plasma simulation chambers in spacecraft design and testing SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 NASA,LEWIS RES CTR,SPACE ENVIRONM EFFECTS BRANCH,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 2188 EP 2192 PG 5 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00387 ER PT S AU Chmielewski, AB Das, A Cassapakis, C Allen, D Schafer, WJ Sercel, J Deligiannis, F Piszczor, M Jones, PA Barnett, DM Rawal, S Reddy, T AF Chmielewski, AB Das, A Cassapakis, C Allen, D Schafer, WJ Sercel, J Deligiannis, F Piszczor, M Jones, PA Barnett, DM Rawal, S Reddy, T BE Chetty, PRK Jackson, WD TI The New Millennium Program power technology SO IECEC 96 - PROCEEDINGS OF THE 31ST INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE, VOLS 1-4 SE PROCEEDINGS OF THE INTERSOCIETY ENERGY CONVERSION ENGINEERING CONFERENCE (SERIES) LA English DT Proceedings Paper CT 31st Intersociety Energy Conversion Engineering Conference (IECEC 96) CY AUG 11-16, 1996 CL WASHINGTON, DC SP IEEE, Electron Devices Soc, IEEE, Aerosp Electr Syst Soc, Natl Capital Area Council C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1089-3547 BN 0-7803-3547-3 J9 PROC IECEC PY 1996 BP 2193 EP 2198 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BG49K UT WOS:A1996BG49K00388 ER PT B AU Perez, R AF Perez, R GP IEEE TI Electromagnetic induced timing defects in the synthetic aperture radar of the Magellan spacecraft SO IEEE 1996 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY - EMC: SILICON TO SYSTEMS, SYMPOSIUM RECORD LA English DT Proceedings Paper CT IEEE 1996 International Symposium on Electromagnetic Compatibility CY AUG 19-23, 1996 CL SANTA CLARA, CA SP IEEE, EMC Soc, Santa Clara Valley Chapter, Electromagnet News Report, IBEX Grp Inc, Int Compliance Corp, Schaffner EMC Inc, Schlegel Corp, Vanguard Prod Corp, Omega Shielding C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3208-3 PY 1996 BP 288 EP 293 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG39Y UT WOS:A1996BG39Y00055 ER PT B AU Trout, DH AF Trout, DH GP IEEE TI Investigation of the bulk current injection technique by comparison to induced currents from radiated electromagnetic fields SO IEEE 1996 INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY - EMC: SILICON TO SYSTEMS, SYMPOSIUM RECORD LA English DT Proceedings Paper CT IEEE 1996 International Symposium on Electromagnetic Compatibility CY AUG 19-23, 1996 CL SANTA CLARA, CA SP IEEE, EMC Soc, Santa Clara Valley Chapter, Electromagnet News Report, IBEX Grp Inc, Int Compliance Corp, Schaffner EMC Inc, Schlegel Corp, Vanguard Prod Corp, Omega Shielding C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 2 Z9 4 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3208-3 PY 1996 BP 412 EP 417 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG39Y UT WOS:A1996BG39Y00079 ER PT B AU Lee, RQ Simons, RN AF Lee, RQ Simons, RN GP IEEE TI Effect of curvature on tapered slot antennas SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 188 EP 191 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00045 ER PT B AU Veruttipong, W AF Veruttipong, W GP IEEE TI Gaussian beam iteration technique for a wideband multiple reflector design SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 894 EP 897 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00211 ER PT B AU Densmore, A Guler, M AF Densmore, A Guler, M GP IEEE TI An aeronautical-mobile 20/30 GHz satellite-tracking antenna for high data rate satcom SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 1108 EP 1111 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00262 ER PT B AU Kim, M Bruston, J Smith, RP Martin, SC Siegel, PH AF Kim, M Bruston, J Smith, RP Martin, SC Siegel, PH GP IEEE TI A slot-antenna bridge-frequency-multiplier design suitable for submillimeter wavelengths SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 1258 EP 1261 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00297 ER PT B AU Simons, RN Lee, RQ Shalkhauser, KA Owens, J Demarco, J Leen, J Sturzebecher, D AF Simons, RN Lee, RQ Shalkhauser, KA Owens, J Demarco, J Leen, J Sturzebecher, D GP IEEE TI Finite width coplanar waveguide patch antenna with vertical fed through interconnect SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 NASA,LEWIS RES CTR,NYMA GRP,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 1338 EP 1341 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00316 ER PT B AU Vacchione, J Burke, K Huang, J Otoshi, T Smith, H AF Vacchione, J Burke, K Huang, J Otoshi, T Smith, H GP IEEE TI A novel waveguide antenna system for the Mars Pathfinder Spacecraft/Lander SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 1704 EP 1707 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00402 ER PT B AU Chen, JC Stanton, PH Reilly, HF AF Chen, JC Stanton, PH Reilly, HF GP IEEE TI X/X/Ka-band horn design SO IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM - 1996 DIGEST, VOLS 1-3 LA English DT Proceedings Paper CT 1996 IEEE Antennas-and-Propagation-Society Symposium / USNC/URSI National Radio Science Meeting CY JUL 21-26, 1996 CL BALTIMORE, MD SP IEEE, Antennas & Propagat Soc, USNC URSI C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3217-2 PY 1996 BP 2022 EP 2025 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG23E UT WOS:A1996BG23E00475 ER PT B AU Hinedi, SM Simon, MK AF Hinedi, SM Simon, MK GP IEEE TI Suppressed carrier synchronizers for ISI channels SO IEEE GLOBECOM 1996 - COMMUNICATIONS THEORY MINI-CONFERENCE, CONFERENCE RECORD: COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY LA English DT Proceedings Paper CT IEEE GLOBECOM 1996 - Communications Theory Mini-Conference - Communications: The Key to Global Prosperity CY NOV 18-22, 1996 CL QUEEN ELIZABETH II CONF CTR, WESTMINSTER, LONDON, ENGLAND SP IEEE Commun Soc, IEE, UKRI Comm Chapter, BT, NORTEL, FUJITSU, Lucent Technol, ALCATEL Telecom, ERICSSON, BroadBand Technol Inc, MCI, Cellnet, TOSHIBA HO QUEEN ELIZABETH II CONF CTR, WESTMINSTER AB We demonstrate a class of suppressed carrier synchronization loops that are motivated by MAP estimation theory and in the presence of ISI outperform the conventional I-Q loop which is designed on the basis of zero ISI (wideband assumption). The measure of comparison used is the so-called ''squaring loss'' (the reduction in loop SNR relative to that of a phase-locked loop (PLL) of the same loop bandwidth) or equivalently the mean-squared phase jitter for equal loop bandwidths and signal power to noise power spectral density ratios. RP Hinedi, SM (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3337-3 PY 1996 BP 62 EP 66 PG 5 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BH62M UT WOS:A1996BH62M00013 ER PT B AU Divsalar, D Simon, M Raphaeli, D AF Divsalar, D Simon, M Raphaeli, D GP IEEE TI A new approach to parallel interference cancellation for CDMA SO IEEE GLOBECOM 1996 - CONFERENCE RECORD, VOLS 1-3: COMMUNICATIONS: THE KEY TO GLOBAL PROSPERITY LA English DT Proceedings Paper CT IEEE GLOBECOM 1996 - Communications: The Key to Global Prosperity CY NOV 18-22, 1996 CL QUEEN ELIZABETH II CONFERENCE CTR, WESTMINSTER, LONDON, ENGLAND SP IEEE Commun Soc, IEE, UKRI Commun Chapter, BT, NORTEL, FUJITSU, Lucent Technol, ALCATEL Telecom, ERICSSON, BroadBand Technol Inc, MCI, Cellnet, TOSHIBA HO QUEEN ELIZABETH II CONFERENCE CTR, WESTMINSTER AB This paper introduces an improved nonlinear parallel interference cancellation scheme that significantly reduces the degrading effect of user interference with implementation complexity linear in the number of users. The scheme operates on the fact that parallel processing simultaneously removes from each user a part of the interference produced by the remaining users accessing the channel the amount being proportional to their reliability The parallel processing can be done in multiple stages. The proposed scheme uses tentative decision devices at the multiple stages to produce the most reliably estimated received data for generation and cancellation of user interference. Simulation results are given for a multitude of different situations, in particular, those cases for which the analysis is too complex. RP Divsalar, D (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91125, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3337-3 PY 1996 BP 1452 EP 1457 PG 6 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BH62N UT WOS:A1996BH62N00270 ER PT B AU Wen, W Callahan, J AF Wen, W Callahan, J GP IEEE COMP SOC TI Neuralware engineering: Develop verifiable ANN-based systems SO IEEE INTERNATIONAL JOINT SYMPOSIA ON INTELLIGENCE AND SYSTEMS, PROCEEDINGS LA English DT Proceedings Paper CT IEEE International Joint Symposia on Intelligence and Systems CY NOV 04-05, 1996 CL ROCKVILLE, MD SP IEEE Comp Soc, IEEE Tech Comm Pattern Anal & Machine Intelligence, IEEE Comp Soc TAI, AAAI Soc, AAAS Soc, Binghamton Univ, CIS Ctr AB Artificial Neural Networks (ANN) play an important part in developing intelligent robotic and autonomous systems. By training the ANN with desired input-output patterns that are derived from human experience or simulation, the designers of such system avoid specifying detailed analytical model of such complex systems. Unlike conventional system design and development which is based on an iterative procedure of system analysis, specification implementation and testing, ANN based system relies on training to formulate the control mechanisms. When such ANN-based components are embedded in a larger system, their interactions become harder to analyze and model. Formal testing of such system for safety properties is extremely hard due to the lack of a complete system model. In this paper we propose the neural ware engineering framework to address the above issues. This framework is based on our experience with verifying and testing complex software systems such as communication protocols and flight control systems. It is based on an iterative approach on specification model checking, and testing. After the ANN-based system is designed and trained using an initial partial system model, an rule extraction algorithm is used to discover what has been learned. The discrepancies between the learned rules and the model is compared to modify the system model. This process is repeated until the behavior of the real system is validated against the model and specification. RP Wen, W (reprint author), W VIRGINIA UNIV,NVU SOFTWARE RES LAB,NASA,KNAPP HALL,MORGANTOWN,WV 26506, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 BN 0-8186-7728-7 PY 1996 BP 60 EP 66 DI 10.1109/IJSIS.1996.565052 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BG84X UT WOS:A1996BG84X00009 ER PT J AU Barnes, NP Filer, ED Morrison, CA Lee, CJ AF Barnes, NP Filer, ED Morrison, CA Lee, CJ TI Ho:Tm lasers .1. Theoretical SO IEEE JOURNAL OF QUANTUM ELECTRONICS LA English DT Article ID ENERGY-TRANSFER; YAG; OPERATION AB Energy transfer dynamics pertinent to Ho:Tm lasers are modeled in two steps: A calculation of the parameters controlling the energy transfer process and a calculation of the population densities of all manifolds influencing the laser process, Energy transfer parameters are modeled with the classical dipole-dipole approximation, but several important changes are implemented to better describe laser materials such as Ho:Tm laser materials, This approach was used to calculate energy transfer parameters using measured energy levels coupled with quantum mechanical calculations although spectroscopically measured parameters could be used in principle, Given the energy transfer parameters, a rate equation approach is used with the eight manifolds required for an accurate description of the Ho:Tm laser, Population densities of all eight manifolds can be predicted as a function of time whether or not lasing occurs. Results of the modeling process are compared with experimental results for both Ho:Tm:YAG and Ho:Tm:YLF with different concentrations and a variety of different mirror reflectivities and different pump pulse lengths in a companion paper. C1 LOCKHEED ENGN & SCI CO,HAMPTON,VA 23666. USA,RES LABS,ADELPHI,MD 20783. RP Barnes, NP (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 34 TC 57 Z9 58 U1 2 U2 12 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9197 J9 IEEE J QUANTUM ELECT JI IEEE J. Quantum Electron. PD JAN PY 1996 VL 32 IS 1 BP 92 EP 103 DI 10.1109/3.481924 PG 12 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA TP752 UT WOS:A1996TP75200012 ER PT J AU Lee, CJ Han, GW Barnes, NP AF Lee, CJ Han, GW Barnes, NP TI Ho:Tm lasers .2. Experiments SO IEEE JOURNAL OF QUANTUM ELECTRONICS LA English DT Article ID YAG; OPERATION; TEMPERATURE AB Laser performance of Ho:Tm:YLF and Ho:Tm:YAG lasers are compared under a wide variety of experimental situations, Laser diode pumping is simulated using a Cr:BeAl2O4 laser tuned to the absorption peak of the (TmH4)-H-3 manifold for the respective laser material, Laser performance is characterized by experimentally determining the threshold and slope efficiency, and compared with predicted results of a rate equation model developed in the companion paper, Energy transfer parameters for the rate equation model are calculated using the theory developed in that paper, For these experiments, four different pump pulselengths, six different output mirror reflectivities, different Ho concentrations and different length laser materials were evaluated, Using Ho:Tm:YAG an optical slope efficiency of 0.36 was achieved while with Ho:Tm:YLF an optical slope efficiency of 0.50 was reached. C1 HAMPTON UNIV,DEPT PHYS,HAMPTON,VA 23668. NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 22 TC 37 Z9 41 U1 1 U2 9 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9197 J9 IEEE J QUANTUM ELECT JI IEEE J. Quantum Electron. PD JAN PY 1996 VL 32 IS 1 BP 104 EP 111 DI 10.1109/3.481925 PG 8 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA TP752 UT WOS:A1996TP75200013 ER PT J AU Krainak, MA Yu, AW AF Krainak, MA Yu, AW TI 1047-nm master oscillator power amplifier free-space optical communications laser transmitter SO IEEE JOURNAL OF QUANTUM ELECTRONICS LA English DT Article ID ND-YLF; INJECTION-LASERS; MODULATION AB We report on the performance of a 1047-nm laser diode master oscillator (MO) diode pumped Nd:YLF power amplifier (PA) laser transmitter in a 50-Mbps quaternary pulse position modulation (Q-PPM) free-space optical direct detection communications experiment, The transmitter produced greater I variable Neutral than 1 W of 1047-nm average optical power, At optical transmitter powers up to 0.2 W, we achieved nearly the same communications performance (similar to 210 photons/b at 10(-6) bit-error rate) using the 1047-nm MOPA transmitter as with the 50 mW laser diode alone, We relied on an external cavity grating feedback scheme for the 1047-nm laser diode MO to achieve this communications performance. C1 HUGHES STX CORP,LANHAM,MD 20706. RP Krainak, MA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,PHOTON BRANCH,CODE 715,GREENBELT,MD 20771, USA. NR 19 TC 0 Z9 0 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 0018-9197 J9 IEEE J QUANTUM ELECT JI IEEE J. Quantum Electron. PD JAN PY 1996 VL 32 IS 1 BP 112 EP 117 DI 10.1109/3.481926 PG 6 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA TP752 UT WOS:A1996TP75200014 ER PT J AU Mehdi, I Martin, SC Dengler, RJ Smith, RP Siegel, PH AF Mehdi, I Martin, SC Dengler, RJ Smith, RP Siegel, PH TI Fabrication and performance of planar Schottky diodes with T-gate-like anodes in 200-GHz subharmonically pumped waveguide mixers SO IEEE MICROWAVE AND GUIDED WAVE LETTERS LA English DT Article AB A T-gate-like structure has been developed, fabricated, and tested as the anode for millimeter and submillimeter-wave Schottky diodes, The low parasitics of the T-anode diodes yield extremely high cutoff frequencies, making the diodes useable at frequencies well beyond 1 THz. The diodes were tested as an antiparallel-pair, integrated monolithically with microstrip circuitry on a quartz substrate, in a subharmonically pumped waveguide mixer, A double sideband noise temperature of 600 K with a conversion loss of 4.7 dB were measured at 200 GHz. This is believed to be the lowest noise temperature ever reported for a room-temperature subharmonically pumped Schottky diode mixer at this frequency. RP Mehdi, I (reprint author), CALTECH, JET PROP LAB, 4800 OAK GROVE DR, PASADENA, CA 91109 USA. NR 7 TC 11 Z9 11 U1 0 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1051-8207 J9 IEEE MICROW GUIDED W JI IEEE Microw. Guided Wave Lett. PD JAN PY 1996 VL 6 IS 1 BP 49 EP 51 DI 10.1109/75.482068 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA TN382 UT WOS:A1996TN38200017 ER PT B AU Tucker, JH Tapia, MA AF Tucker, JH Tapia, MA GP IEEE TI Generalized flip-flop input equations based on a four-valued Boolean algebra SO IEEE SOUTHEASTCON '97 - ENGINEERING THE NEW CENTURY, PROCEEDINGS LA English DT Proceedings Paper CT IEEE SOUTHEASTCON 97 Conference on Engineering the New Century CY APR 12-14, 1997 CL BLACKSBURG, VA SP IEEE Reg 3, IEEE Virginia Mt Sect AB A procedure is developed for obtaining generalized flip-flop input equations, and a concise method is presented for representing these equations. The procedure is based on solving a four-valued characteristic equation of the flip-flop, and can encompass flip-flops that are too complex to approach intuitively. The technique is presented using Karnaugh maps, but could easily be implemented in software. RP Tucker, JH (reprint author), NASA,LANGLEY RES CTR,AEROSPACE ELECT SYST DIV,MAIL STOP 488,HAMPTON,VA 23681, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3845-6 PY 1996 BP 82 EP 86 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BJ09N UT WOS:A1996BJ09N00018 ER PT B AU Garrison, JL Katzberg, SJ Howell, CT AF Garrison, JL Katzberg, SJ Howell, CT GP IEEE TI Detection of ocean reflected GPS signals: Theory and experiment SO IEEE SOUTHEASTCON '97 - ENGINEERING THE NEW CENTURY, PROCEEDINGS LA English DT Proceedings Paper CT IEEE SOUTHEASTCON 97 Conference on Engineering the New Century CY APR 12-14, 1997 CL BLACKSBURG, VA SP IEEE Reg 3, IEEE Virginia Mt Sect AB A number of advanced applications of the Global Positioning System (GPS) have been proposed which use the signal reflected from a smooth ocean surface, The viability of these concepts hinges upon, the ability to acquire and code track the reflected signal far an extended period of time over a variety of sea states. The analytical theory of specularly and diffusely reflected radio frequency radiation from a rough surface is reviewed, Experiments to demonstrate tracking of a reflected signal were performed on three aircraft flights over the Chesapeake Bay and the Eastern Shore of Virginia, The experimental hardware consisted of two off-the-shelf receivers configured so that one received the GPS signal in the conventional manner using a right hand circularly polarized (RHCP) antenna on top of the fuselage and the other could receive the reflected signal using a left hand circularly polarized (LHCP) antenna on the bottom of the fuselage. Three tests were performed on the data to verify that the signals received in the bottom antenna were viewed as sea surface reflections; Pseudorange double differences were compared against predicted geometric range double differences; Characteristics of a signal reflected from a random surface were observed in the carrier to noise ratio; Predicted specular points were plotted which demonstrate reflection only from wet areas. These tests indicated tracking of reflected signals for extended periods of time at altitudes of up to 5500 m and sporadic signal acquisition at higher altitudes. The duration of the continuous signal tracking was limited by the receiver's need to maintain carrier tracking. RP Garrison, JL (reprint author), NASA,LANGLEY RES CTR,SPACECRAFT & SENSORS BRANCH,MS 328,HAMPTON,VA 23665, USA. NR 0 TC 1 Z9 1 U1 0 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3845-6 PY 1996 BP 290 EP 294 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BJ09N UT WOS:A1996BJ09N00074 ER PT J AU Baram, Y Barniv, Y AF Baram, Y Barniv, Y TI Obstacle detection by recognizing binary expansion patterns SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Article ID OPTICAL-FLOW; MOTION; LOCATION; OBSERVER; FIELD AB A technique is described for obstacle detection, based on the expansion of the image-plane projection of a textured object, as its distance from the sensor decreases. Information is conveyed by vectors whose components represent first-order temporal and spatial derivatives of the image intensity, which are related to the time to collision through the local divergence. Such vectors may be characterized as patterns corresponding to ''safe'' or ''dangerous'' situations. We show that the essential information is conveyed by single-bit vector components, representing the signs of the relevant derivatives. We use two recently developed, high capacity classifiers, employing neural learning techniques, to recognize the imminence of collision from such patterns. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP Baram, Y (reprint author), TECHNION ISRAEL INST TECHNOL,DEPT COMP SCI,IL-32000 HAIFA,ISRAEL. NR 20 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 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JAN PY 1996 VL 32 IS 1 BP 191 EP 198 DI 10.1109/7.481261 PG 8 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA TQ352 UT WOS:A1996TQ35200018 ER PT J AU Hearn, CP AF Hearn, CP TI The effect of pulse interference in time-domain reflectometry SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS LA English DT Letter AB This communication develops a simple mathematical approximation defining the ''time shift'' of a ''signal'' pulse by the sidelobes of an ''interference'' pulse in an otherwise noisefree environment, This condition exists when nonuniform frequency-domain windowing cannot be used to suppress sidelobe interference, Simulation of, and actual measurements with, a stepped-frequency reflectometer corroborate the theory. RP Hearn, CP (reprint author), NASA,LANGLEY RES CTR,MS 490,HAMPTON,VA 23681, USA. NR 2 TC 0 Z9 0 U1 1 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017-2394 SN 0018-9251 J9 IEEE T AERO ELEC SYS JI IEEE Trans. Aerosp. Electron. Syst. PD JAN PY 1996 VL 32 IS 1 BP 464 EP 466 DI 10.1109/7.481288 PG 3 WC Engineering, Aerospace; Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA TQ352 UT WOS:A1996TQ35200045 ER PT J AU Joshi, SM Gupta, S AF Joshi, SM Gupta, S TI On a class of marginally stable positive real systems SO IEEE TRANSACTIONS ON AUTOMATIC CONTROL LA English DT Article ID FREQUENCY-DOMAIN CONDITIONS AB A class of marginally stable positive real systems is defined which is less restrictive than the previously published definitions of strictly positive real systems. A minimal realization and state-space characterization of such systems are presented, and it is proven that controllers belonging to this class robustly stabilize positive real plants. C1 VIGYAN INC,HAMPTON,VA 23666. RP Joshi, SM (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 10 TC 41 Z9 41 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 0018-9286 J9 IEEE T AUTOMAT CONTR JI IEEE Trans. Autom. Control PD JAN PY 1996 VL 41 IS 1 BP 152 EP 155 DI 10.1109/9.481623 PG 4 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA TQ672 UT WOS:A1996TQ67200021 ER PT J AU Nayak, DK Woo, JCS Park, JS Wang, KL MacWilliams, KP AF Nayak, DK Woo, JCS Park, JS Wang, KL MacWilliams, KP TI Hole confinement in a Si/GeSi/Si quantum well on SIMOX SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Article ID SILICON-ON-INSULATOR; TEMPERATURE; HETEROSTRUCTURES; IMPLANTATION; QUALITY; FILMS; PMOS AB In this work, hole confinement in a MBE-grown Si/GeSi/Si quantum well on SIMOX substrate is investigated in detail using device simulation, electronic measurements, and optical techniques. The hole confinement is clearly demonstrated from GeSi PMOSFET measurements. The experimental results are in good agreement with device simulation results. The quantum confinement of holes in the GeSi quantum well on SIMOX is confirmed using photoluminescence measurements. C1 UNIV CALIF LOS ANGELES,DEPT ELECT ENGN,LOS ANGELES,CA 90024. CALTECH,JET PROP LAB,PASADENA,CA 91109. AEROSP CORP,EL SEGUNDO,CA 90009. RP Nayak, DK (reprint author), ADV MICRO DEVICES INC,LOG TECHNOL DIV,SUNNYVALE,CA 94088, USA. NR 15 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 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD JAN PY 1996 VL 43 IS 1 BP 180 EP 182 DI 10.1109/16.477614 PG 3 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA TN386 UT WOS:A1996TN38600029 ER PT J AU Wilson, JD Kory, CL AF Wilson, JD Kory, CL TI Simulation of cold-test parameters and RF output power for a coupled-cavity traveling-wave tube (vol 42, pg 2015, 1995) SO IEEE TRANSACTIONS ON ELECTRON DEVICES LA English DT Correction, Addition C1 NASA,LEWIS RES CTR,ANALEX CORP,CLEVELAND,OH 44135. RP Wilson, JD (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 1 TC 0 Z9 0 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 0018-9383 J9 IEEE T ELECTRON DEV JI IEEE Trans. Electron Devices PD JAN PY 1996 VL 43 IS 1 BP 189 EP 189 DI 10.1109/TED.1996.477618 PG 1 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA TN386 UT WOS:A1996TN38600032 ER PT J AU Haddad, ZS Dubois, P vanZyl, JJ AF Haddad, ZS Dubois, P vanZyl, JJ TI Bayesian estimation of soil parameters from radar backscatter data SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article AB Given measurements m(1), m(2),...,m(j) representing radar cross-sections of a given resolution element at different polarizations and/or different frequency bands, we consider the problem of making an ''optimal'' estimate of the actual dielectric constant epsilon and the rms surface height h that gave rise to the particular {m(j)} observed, To obtain such an algorithm, we start with a data catalog consisting of careful measurements of the soil parameters epsilon and h, and the corresponding remote sensing data {m(j)}. We also assume that we have used these data to write down, for each j, an average formula which associates an approximate value of m(j) to a given pair (epsilon, h), Instead of deterministically inverting these average formulas, we propose to use the data catalog more fully and quantify the spread of the measurements about the average formula, then incorporate this information into the inversion algorithm, This paper describes how we accomplish this using a Bayesian approach, In fact, our method allows us to 1) make an estimate of epsilon and h that is optimal according to our criteria; 2) place a quantitatively honest error bar on each estimate, as a function of the actual values of the remote sensing measurements; 3) fine-tune the inital formulas expressing the dependence of the remote sensing data on the soil parameters; 4) take into account as many (or as few) remote sensing measurements as we like in making our estimates of epsilon and h, in each case producing error bars to quantify the benefits of using a particular combination of measurements. RP Haddad, ZS (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 10 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 0196-2892 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD JAN PY 1996 VL 34 IS 1 BP 76 EP 82 DI 10.1109/36.481895 PG 7 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA TT934 UT WOS:A1996TT93400011 ER PT J AU Hook, SJ Okada, K AF Hook, SJ Okada, K TI Inflight wavelength correction of thermal infrared multispectral scanner (TIMS) data acquired from the ER-2 SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article ID INFORMATION; EMISSIVITY AB In 1991 one flightline of Thermal Infrared Multispectral Scanner (TIMS) data was acquired over Castaic Lake, CA, and in 1992 four flightlines of TIMS data were acquired over Death Valley, CA, and one flightline of TIMS data over Lake Tahoe, CA, All datasets were obtained from an altitude of 20 km, To produce surface radiance the data were first calibrated, and then corrected for atmospheric effects using MODTRAN. The surface temperature was then extracted from the radiance data assuming a constant emissivity of 0.985 in all the TIMS channels, The surface temperatures for a spectrally flat area in the Castaic Lake data were then examined, Since the emissivity of the area was constant, the surface temperatures in the six TIMS channels should also have been similar, However, this was not the case, the values in channel 4 were much higher (similar to 3 degrees C) and the values in channel 3 much lower (similar to 2 degrees C) than those in the other channels, This difference can be explained by an inflight shift in the system response functions of the six TIMS channels, The amount of shift can be determined by incremental shifting of the preflight system response functions to longer wavelengths, then recalculating the surface temperature using the above method until the temperatures for channels 3 and 4 agree, A shift of 85 nm (the narrowest TIMS channel is similar to 500 nm wide) was required to make the brightness temperatures of channels 3 and 4 agree to within +/-1 degrees C within the Castaic Lake data. The same procedure was undertaken with the TIMS data from the four flightlines acquired at Death Valley that overlapped a spectrally flat target and over Lake Tahoe, The surface temperatures for all the channels were found to be in good agreement after shifts of 79, 88, 91, and 100 nm, respectively, for the four Death Valley flightlines and 98 nm for the Lake Tahoe flightline, The amount of shift increased as a function of the time that TIMS was airborne. The Castaic Lake data were acquired after TIMS had been airborne for a similar amount of time to the Death Valley flightline which showed a shift of 91 nm. The results from this study clearly demonstrate that the system response functions of the six TIMS channels shift to longer wavelengths compared to their preflight values with data acquired from the ER-2. A method is provided for determining the amount of shift permitting its correction, The method could also be used to verify the inflight wavelength calibration of multispectral thermal infrared data acquired from other airborne or spaceborne scanners with a similar optical configuration to TIMS. C1 JAPEX GEOSCI INST,TOKYO,JAPAN. RP Hook, SJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 9 TC 3 Z9 3 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 0196-2892 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD JAN PY 1996 VL 34 IS 1 BP 179 EP 188 DI 10.1109/36.481902 PG 10 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA TT934 UT WOS:A1996TT93400018 ER PT J AU Kwok, R Fahnestock, MA AF Kwok, R Fahnestock, MA TI Ice sheet motion and topography from radar interferometry SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article AB Both topography and motion information are present in repeat pass ERS-1 interferograms over ice sheets, We demonstrate that the topography is separable from the surface displacement field when a sequence of radar images are available, If the velocity field is constant over the time span of observation, the topography can be derived from differential interferograms formed from sequential observations, With this measurement, a pure displacement field can then be obtained by removal of the topographic contribution to the interferometric phase at each pixel, Further, we discuss how the vertical and horizontal components of displacement affect the interferometrically-derived motion field, We illustrate our approach with four successive (3-day repeat) ERS-1 images of a flow feature in northeastern Greenland. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP Kwok, R (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. RI Kwok, Ron/A-9762-2008; Fahnestock, Mark/N-2678-2013 OI Kwok, Ron/0000-0003-4051-5896; NR 13 TC 100 Z9 110 U1 2 U2 6 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 JAN PY 1996 VL 34 IS 1 BP 189 EP 200 DI 10.1109/36.481903 PG 12 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA TT934 UT WOS:A1996TT93400019 ER PT J AU Li, ZJ Fung, AK Tjuatja, S Gibbs, DP Betty, CL Irons, JR AF Li, ZJ Fung, AK Tjuatja, S Gibbs, DP Betty, CL Irons, JR TI A modeling study of backscattering from soil surfaces SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article ID BIDIRECTIONAL REFLECTANCE AB An examination of soil particles from very fine to medium sand surfaces has indicated that they are generally on the order of 50 to 500 mu m. Thus, at an incident wavelength around 0.6 mu m, the incident light should ''see'' microscopic roughness features on the particle rather than its macroscopic features. It is anticipated that the macroscopic features of a soil particle are responsible for the shadowing and tilting. Note that these smaller scales of roughness may still be larger than the incident wavelength. In view of this physical structure, a soil particle is modeled as a layer with two arbitrarily oriented surface boundaries to simulate the overall roughness effect, A scattering phase function is then developed for this layer by considering wave scattering from and propagating through it. A probability distribution function for the orientation of the layer boundaries is assumed for the calculation of this phase function, After the phase function is developed, it is incorporated into a matrix doubling algorithm to calculate the backscattering coefficients for a half space of soil particles. Preliminary results indicate that backscattering is dominated by the small scales of roughness riding on the particle, and those large scales of roughness are responsible for tilting and shadowing. C1 NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771. RP Li, ZJ (reprint author), UNIV TEXAS,DEPT ELECT ENGN,WAVE SCATTERING RES CTR,ARLINGTON,TX 76019, USA. RI Irons, James/D-8535-2012 NR 18 TC 6 Z9 6 U1 1 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 JAN PY 1996 VL 34 IS 1 BP 264 EP 271 DI 10.1109/36.481911 PG 8 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA TT934 UT WOS:A1996TT93400027 ER PT J AU Privette, JL Myneni, RB Emery, WJ Hall, FG AF Privette, JL Myneni, RB Emery, WJ Hall, FG TI Optimal sampling conditions for estimating grassland parameters via reflectance model inversions SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING LA English DT Article ID PHOTOSYNTHETICALLY ACTIVE RADIATION; CANOPY REFLECTANCE; TALLGRASS PRAIRIE; VEGETATION; INDEX; FIFE; ALBEDO AB The sensitivity of grassland bidirectional reflectance to soil, vegetation, irradiance, and sensor parameters is assessed, Based on these results, a vegetation Bidirectional Reflectance Distribution Function (BRDF) model is inverted with ground reflectance data from the First ISLSCP Field Experiment (FIFE), Results suggest that leaf area index (LAI) is most accurately retrieved from data gathered in near-infrared bands at low solar zenith angles (SZA), and leaf angle distribution is best retrieved from data gathered in near-infrared bands at high SZA, Generally, leaf optical properties are more accurately estimated from data acquired at high SZA. Canopy albedo and fraction of absorbed photosynthetically active radiation (fAPAR) are also estimated and compared to measured values, Albedo estimates are accurate to about +/-0.01 (4% relative) when model parameters are determined from reflectance data gathered under preferred conditions, Estimates of fAPAR are less accurate, These results provide a guide for efficiently sampling surface reflectance and accurately retrieving parameters for use in climate and ecosystem models. C1 NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771. UNIV COLORADO,DEPT AEROSP ENGN SCI,BOULDER,CO 80309. RP Privette, JL (reprint author), UNIV MARYLAND,DEPT GEOG,COLLEGE PK,MD 20740, USA. RI Privette, Jeffrey/G-7807-2011; Myneni, Ranga/F-5129-2012; OI Privette, Jeffrey/0000-0001-8267-9894; Emery, William/0000-0002-7598-9082 NR 33 TC 20 Z9 22 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 0196-2892 J9 IEEE T GEOSCI REMOTE JI IEEE Trans. Geosci. Remote Sensing PD JAN PY 1996 VL 34 IS 1 BP 272 EP 284 DI 10.1109/36.481912 PG 13 WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote Sensing; Imaging Science & Photographic Technology SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science & Photographic Technology GA TT934 UT WOS:A1996TT93400028 ER PT J AU Manohar, M Tilton, JC AF Manohar, M Tilton, JC TI Progressive vector quantization on a massively parallel SIMD machine with application to multispectral image data SO IEEE TRANSACTIONS ON IMAGE PROCESSING LA English DT Article ID ALGORITHM AB This correspondence discusses a progressive vector quantization (VQ) compression approach, which decomposes image data into a number of levels using full-search VQ. The final level is losslessly compressed, enabling lossless reconstruction. The computational difficulties are addressed by implementation on a massively parallel SIR ID machine, We demonstrate progressive VQ on multispectral imagery obtained from the advanced very high resolution radiometer (AVHRR) and other earth-observation image data, and investigate the tradeoffs in selecting the number of decomposition levels and codebook training method. C1 NASA,GODDARD SPACE FLIGHT CTR,INFORMAT SCI & TECHNOL BRANCH,GREENBELT,MD 20771. RP Manohar, M (reprint author), BOWIE STATE UNIV,DEPT COMP SCI,BOWIE,MD 20715, USA. NR 11 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 1057-7149 J9 IEEE T IMAGE PROCESS JI IEEE Trans. Image Process. PD JAN PY 1996 VL 5 IS 1 BP 142 EP 147 DI 10.1109/83.481678 PG 6 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA TV474 UT WOS:A1996TV47400015 PM 18285097 ER PT J AU DeMers, D KreutzDelgado, K AF DeMers, D KreutzDelgado, K TI Canonical parameterization of excess motor degrees of freedom with self-organizing maps SO IEEE TRANSACTIONS ON NEURAL NETWORKS LA English DT Article ID REDUNDANT MANIPULATORS; INVERSE KINEMATICS; NEURAL NETWORKS; IMPLEMENTATION; ROBOT AB The problem of sensorimotor control is underdetermined due to excess (or ''redundant'') degrees of freedom when there are more joint variables than the minimum needed for positioning an end-effector. A method is presented for solving the nonlinear inverse kinematics problem for a redundant manipulator by learning a natural parameterization of the inverse solution manifolds with self-organizing maps, The parameterization approximates the topological structure of the joint space, which is that of a fiber bundle, The fibers represent the ''self-motion manifolds'' along which the manipulator can change configuration while keeping the end-effector at a fixed location, The method is demonstrated for the case of the redundant planar manipulator, Data samples along the self-motion manifolds are selected from a large set of measured input-output data, This is done by taking points in the joint space corresponding to end-effector locations near ''query points,'' which define small neighborhoods in the end-effector work space, Self-organizing maps are used to construct an approximate parameterization of each manifold which is consistent for all of the query points, The resulting parameterization is used to augment the overall kinematics map so that it is locally invertible. joint-angle and end-effector position data, along with the learned parameterizations, are used to train neural networks to approximate direct inverse functions. C1 UNIV CALIF SAN DIEGO,INST NEURAL COMPUTAT,LA JOLLA,CA 92093. UNIV CALIF SAN DIEGO,DEPT ELECT & COMP ENGN,LA JOLLA,CA 92093. CALTECH,JET PROP LAB,NASA,PASADENA,CA 91125. RP DeMers, D (reprint author), UNIV CALIF SAN DIEGO,DEPT COMP SCI & ENGN,LA JOLLA,CA 92093, USA. NR 47 TC 7 Z9 7 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 1045-9227 J9 IEEE T NEURAL NETWOR JI IEEE Trans. Neural Netw. PD JAN PY 1996 VL 7 IS 1 BP 43 EP 55 DI 10.1109/72.478391 PG 13 WC Computer Science, Artificial Intelligence; Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA TQ671 UT WOS:A1996TQ67100005 PM 18255557 ER PT B AU Tran, TL AF Tran, TL GP IEEE ENGN MANAGEMENT SOC TI QFD application to a software-intensive system development project SO IEMC 96 PROCEEDINGS - MANAGING VIRTUAL ENTERPRISES: A CONVERGENCE OF COMMUNICATIONS, COMPUTING, AND ENERGY TECHNOLOGIES LA English DT Proceedings Paper CT International Conference on Engineering and Technology Management - Managing Virtual Enterprises: A Convergence of Communications, Computing, and Energy Technologies (IEMC 96) CY AUG 18-20, 1996 CL VANCOUVER, CANADA SP IEEE, Engn Management Soc C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3552-X PY 1996 BP 683 EP 689 DI 10.1109/IEMC.1996.547901 PG 7 WC Computer Science, Information Systems; Engineering, Industrial; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG27Y UT WOS:A1996BG27Y00121 ER PT B AU Meneghini, R Liao, L AF Meneghini, R Liao, L GP IEEE TI Dielectric constants for melting hydrometeors as derived from a numerical method SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 16 EP 18 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00006 ER PT B AU Leung, K Chen, M Shimada, J Chu, A AF Leung, K Chen, M Shimada, J Chu, A GP IEEE TI RADARSAT processing system at ASF SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 43 EP 47 PG 5 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00015 ER PT B AU Spencer, MW AF Spencer, MW GP IEEE TI NASA scatterometer near-real-time, value added products for meso/synoptic-scale marine forecasting SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 82 EP 84 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00027 ER PT B AU Liu, AK Tseng, WY Chang, SYS AF Liu, AK Tseng, WY Chang, SYS GP IEEE TI Wavelet analysis of AVHRR images for feature tracking SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 85 EP 87 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00028 ER PT B AU Holecz, F Michel, TR Keller, M AF Holecz, F Michel, TR Keller, M GP IEEE TI Calibration and classification of SIR-C SAR data in moderate slope areas SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr DE SAR calibration; backscattering coefficient; unsupervised and supervised classification C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 248 EP 250 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00082 ER PT B AU Yanow, G Sohus, A Payne, B AF Yanow, G Sohus, A Payne, B GP IEEE TI ''Winds of change'': A multi-media tool to aid teachers in teaching global climate SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,JET PROPULS LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 321 EP 323 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00102 ER PT B AU Rabine, DL Bufton, JL Vaughn, CR AF Rabine, DL Bufton, JL Vaughn, CR GP IEEE TI Development and test of a raster scanning laser altimeter for high resolution airborne measurements of topography SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Rabine, David/C-9626-2013 NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 423 EP 426 PG 4 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00135 ER PT B AU Hussein, ZA RahmatSamii, Y AF Hussein, ZA RahmatSamii, Y GP IEEE TI On the accurate calibration of the SeaWinds radar antenna: A cylindrical near-field measurement approach SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 515 EP 519 PG 5 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00164 ER PT B AU Meneghini, R Iguchi, T Liao, L AF Meneghini, R Iguchi, T Liao, L GP IEEE TI Analysis of dual-wavelength dual-polarization returns from frozen hydrometeors SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 554 EP 556 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00176 ER PT B AU Ranson, KJ Sun, GQ Montgomery, B Lang, RH AF Ranson, KJ Sun, GQ Montgomery, B Lang, RH GP IEEE TI Mapping of Boreal forest biomass using SAR SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771. RI Ranson, Kenneth/G-2446-2012 OI Ranson, Kenneth/0000-0003-3806-7270 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 577 EP 579 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00183 ER PT B AU Carsey, F Wales, C AF Carsey, F Wales, C GP IEEE TI Future opportunities and issues in radar remote sensing of earth's high latitudes SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 634 EP 635 PG 2 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00201 ER PT B AU Tilton, JC AF Tilton, JC GP IEEE TI Hybrid image segmentation for earth remote sensing data analysis SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,INFORMAT SCI & TECHNOL BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 703 EP 705 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00223 ER PT B AU Moghaddam, M Saatchi, S AF Moghaddam, M Saatchi, S GP IEEE TI Estimation of moisture content of forest canopy from SAR data SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 730 EP 732 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00232 ER PT B AU LeVine, DM Weissman, DE AF LeVine, DM Weissman, DE GP IEEE TI Calibration of synthetic aperture radiometers in space: Antenna effects SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 878 EP 880 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00279 ER PT B AU Wersinger, JM Ward, E AF Wersinger, JM Ward, E GP IEEE TI An overview of remote sensing education projects sponsored by the NASA space grant program SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 914 EP 916 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00291 ER PT B AU Blurton, C McGee, S AF Blurton, C McGee, S GP IEEE TI Mission to planet earth on-line earth systems science course SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,CLASSROOM FUTURE,WHEELING,WV 26003. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 917 EP 919 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00292 ER PT B AU Yueh, SH Kwok, R Lou, SH Tsai, WY AF Yueh, SH Kwok, R Lou, SH Tsai, WY GP IEEE TI Sea ice identification using dual-polarized Ku-band scatterometer data SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 935 EP 937 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00298 ER PT B AU Cavalieri, DJ Hall, DK Wang, JR AF Cavalieri, DJ Hall, DK Wang, JR GP IEEE TI Comparison of aircraft and DMSP SSM/I passive microwave measurements over the Bering Sea in April 1995 SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LAB HYDROSPHER PROC,GREENBELT,MD 20771. RI Hall, Dorothy/D-5562-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 956 EP 958 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00305 ER PT B AU Treuhaft, R Moghaddam, M vanZyl, J Sarabandi, K AF Treuhaft, R Moghaddam, M vanZyl, J Sarabandi, K GP IEEE TI Estimating vegetation and surface topographic parameters from multibaseline radar interferometry SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 978 EP 980 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00312 ER PT B AU Middleton, EM Chan, SS Mesarch, MA WalterShea, EA AF Middleton, EM Chan, SS Mesarch, MA WalterShea, EA GP IEEE TI A revised measurement methodology for spectral optical properties of conifer needles SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,GREENBELT,MD 20771. NR 0 TC 2 Z9 2 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1005 EP 1009 PG 5 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00321 ER PT B AU Yeh, PS Miller, WH Hou, S AF Yeh, PS Miller, WH Hou, S GP IEEE TI Performance of an enhanced DCT compression system for space applications SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1032 EP 1034 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00329 ER PT B AU Cheung, K Tong, K Belongie, M AF Cheung, K Tong, K Belongie, M GP IEEE TI End-to-end system consideration of the Galileo image compression system SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,PASADENA,CA 91109. CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1035 EP 1038 PG 4 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00330 ER PT B AU Njoku, EG Rague, BW AF Njoku, EG Rague, BW GP IEEE TI Spatial and temporal trends in land surface moisture and temperature observable using data from the nimbus-7 microwave radiometer SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1054 EP 1057 PG 4 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00336 ER PT B AU Engman, ET Mattikalli, NM Ahuja, LR Jackson, TJ AF Engman, ET Mattikalli, NM Ahuja, LR Jackson, TJ GP IEEE TI Application of microwave remotely sensed surface soil moisture for estimation of sub-surface soil hydraulic properties SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LAB HYDROSPHER PROC,HYDROL SCI BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1058 EP 1060 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00337 ER PT B AU ONeill, PE Hsu, AY Jackson, TJ Wood, EF Zion, M AF ONeill, PE Hsu, AY Jackson, TJ Wood, EF Zion, M GP IEEE TI Investigation of the accuracy of soil moisture inversion using microwave data and its impact on watershed hydrological modeling SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,HYDROL SCI BRANCH,LAB HYDROSPHER PROC,GREENBELT,MD 20771. OI Wood, Eric/0000-0001-7037-9675 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1061 EP 1063 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00338 ER PT B AU Yueh, SH Wilson, WJ Li, FK AF Yueh, SH Wilson, WJ Li, FK GP IEEE TI Modelling of wind direction signals in polarimetric sea surface brightness temperatures SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1132 EP 1134 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00363 ER PT B AU Nghiem, SV Kwok, R Yueh, SH Kong, JA Gow, AJ Perovich, DK Martin, S Drucker, R AF Nghiem, SV Kwok, R Yueh, SH Kong, JA Gow, AJ Perovich, DK Martin, S Drucker, R GP IEEE TI Sea ice polarimetric backscatter signatures at C band SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1190 EP 1192 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00382 ER PT B AU Palm, SP Schwemmer, G Vandemark, D Hines, D Melfi, SH AF Palm, SP Schwemmer, G Vandemark, D Hines, D Melfi, SH GP IEEE TI Remote sensing of the marine atmospheric boundary layer and ocean surface winds: Observations from the LITE correlative flights SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,SCI SYST & APPLICAT INC,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1257 EP 1259 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00402 ER PT B AU Markham, BL Boncyk, WC Barker, JL Kaita, E Helder, DL AF Markham, BL Boncyk, WC Barker, JL Kaita, E Helder, DL GP IEEE TI Landsat-7 Enhanced Thematic Mapper Plus in-flight radiometric calibration SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Markham, Brian/M-4842-2013 OI Markham, Brian/0000-0002-9612-8169 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1273 EP 1275 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00407 ER PT B AU Bruegge, C Woodhouse, R Diner, D AF Bruegge, C Woodhouse, R Diner, D GP IEEE TI In-flight radiometric calibration plans for the earth observing system - Multi-angle Imaging SpectroRadiometer SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1279 EP 1282 PG 4 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00409 ER PT B AU Wu, STS AF Wu, STS GP IEEE TI Microwave remote sensing of land surfaces soil moisture at global hydrology and climate center SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GLOBAL HYDROL & CLIMATE CTR,MICROWAVE REMOTE SENSING LAND SURFACES SOIL MOIST,HUNTSVILLE,AL 35806. NR 0 TC 0 Z9 0 U1 1 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1309 EP 1311 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00418 ER PT B AU Cuddy, D Leung, K AF Cuddy, D Leung, K GP IEEE TI An Alaska SAR Facility overview in the RADARSAT era SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1358 EP 1360 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00432 ER PT B AU Vandemark, D Hines, D Chapron, B Carswell, J Donnelly, W AF Vandemark, D Hines, D Chapron, B Carswell, J Donnelly, W GP IEEE TI Observations of the ocean surface using an aircraft altimeter, scatterometer and ROWS SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LAB HYDROSPHER PROC,WALLOPS ISL,VA 23337. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1385 EP 1388 PG 4 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00441 ER PT B AU Russell, CA Irons, JR Dabney, PW AF Russell, CA Irons, JR Dabney, PW GP IEEE TI Estimating hemispherical reflectance and selected biophysical parameters for boreal forest canopies using spectral bidirectional reflectance data acquired by ASAS SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,UMCP,DEPT GEOG,LAB GLOBAL REMOTE SENSING STUDIES,GREENBELT,MD 20771. RI Irons, James/D-8535-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1417 EP 1419 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00451 ER PT B AU Wang, JR Kummerow, C Racette, P Olson, W Zhan, J AF Wang, JR Kummerow, C Racette, P Olson, W Zhan, J GP IEEE TI Observations and modelling of radiometric signatures of storms in the frequency range of 90-220 GHz SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1429 EP 1431 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00455 ER PT B AU Hood, RE Spencer, RW AF Hood, RE Spencer, RW GP IEEE TI High altitude aircraft mapping of near surface ocean winds SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,MARSHALL SPACE FLIGHT CTR,GLOBAL HYDROL & CLIMATE CTR,HUNTSVILLE,AL 35806. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1460 EP 1462 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00464 ER PT B AU Nghiem, SV Li, FK Neumann, G AF Nghiem, SV Li, FK Neumann, G GP IEEE TI K-u-band ocean backscatter functions for surface wind retrieval SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1469 EP 1471 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00467 ER PT B AU Markus, T Cavalieri, DJ AF Markus, T Cavalieri, DJ GP IEEE TI Comparison of open water and thin ice areas derived from satellite passive microwave data with aircraft measurements and satellite infrared data in the Bering Sea SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Markus, Thorsten/D-5365-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1529 EP 1531 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00487 ER PT B AU Rall, JAR Abshire, JB AF Rall, JAR Abshire, JB GP IEEE TI Antarctic miniature lidar SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LASER REMOTE SENSING BRANCH,GREENBELT,MD 20771. RI Abshire, James/I-2800-2013 NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1538 EP 1540 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00490 ER PT B AU LeVine, DM Swift, CT AF LeVine, DM Swift, CT GP IEEE TI Synthetic aperture radiometers for microwave remote sensing from space SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1547 EP 1549 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00493 ER PT B AU Bidwell, SW Heymsfield, GM Caylor, IJ AF Bidwell, SW Heymsfield, GM Caylor, IJ GP IEEE TI Capabilities and recent results from the ER-2 Doppler Radar (EDOP) SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1550 EP 1552 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00494 ER PT B AU Barker, JL Seiferth, JC AF Barker, JL Seiferth, JC GP IEEE TI Landsat thematic mapper Band-to-Band registration SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 3 Z9 4 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1600 EP 1602 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00510 ER PT B AU Kim, Y Lou, Y vanZyl, J Maldonado, L Miller, T Sato, T Skotnicki, W AF Kim, Y Lou, Y vanZyl, J Maldonado, L Miller, T Sato, T Skotnicki, W GP IEEE TI NASA/JPL airborne three-frequency polarimetric/interferometric SAR system SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1612 EP 1614 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00514 ER PT B AU Brakke, TW Otterman, J Irons, JR Hall, FG AF Brakke, TW Otterman, J Irons, JR Hall, FG GP IEEE TI Assessing canopy biomass and vigor by model-inversion of bidirectional reflectances: Problems and prospects SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771. RI Irons, James/D-8535-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1657 EP 1659 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00528 ER PT B AU Huddleston, JN West, RD Yueh, SH Tsai, WY AF Huddleston, JN West, RD Yueh, SH Tsai, WY GP IEEE TI Advanced techniques for improving wind direction ambiguity removal in scatterometry SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1718 EP 1720 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00548 ER PT B AU West, RD Yueh, SH AF West, RD Yueh, SH GP IEEE TI Atmospheric effects on the wind retrieval performance of satellite radiometers SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1727 EP 1729 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00551 ER PT B AU Markus, T AF Markus, T GP IEEE TI The effect of the grounded tabular icebergs in front of Berkner Island on the Weddell Sea ice drift as seen from satellite passive microwave sensors SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Markus, Thorsten/D-5365-2012 NR 0 TC 7 Z9 7 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1791 EP 1793 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00571 ER PT B AU Blair, JB Harding, DJ Coyle, DB AF Blair, JB Harding, DJ Coyle, DB GP IEEE TI Using laser echo recovery and a scannable field-of-view telescope to determine vegetation structure and sub-canopy topography over wide swaths SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LASER REMOTE SENSING BRANCH,GREENBELT,MD 20771. RI Blair, James/D-3881-2013; Harding, David/F-5913-2012 NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1806 EP 1808 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00576 ER PT B AU Kalshoven, JE Rosten, DP AF Kalshoven, JE Rosten, DP GP IEEE TI An active optical remote sensing system for vegetation index determination SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB 924,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1809 EP 1811 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00577 ER PT B AU Abel, P Subramanya, B AF Abel, P Subramanya, B GP IEEE TI An improved aircraft underflight instrument for the derivation of band gains in satellite sensors SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1816 EP 1822 PG 7 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00579 ER PT B AU Moreno, JF AF Moreno, JF GP IEEE TI Radiometric corrections of visible/infrared satellite data over terrestrial environments: Angular, atmospheric and topographic effects SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1823 EP 1825 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00580 ER PT B AU Moreno, JF Saatchi, SS AF Moreno, JF Saatchi, SS GP IEEE TI Surface information retrieval from optical/microwave data: Potentials and limits of synergistic approaches SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1861 EP 1863 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00592 ER PT B AU Kiang, RK AF Kiang, RK GP IEEE TI Sensor data simulations using Monte-Carlo and neural network methods SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,EARTH SCI DATA OPERAT FACIL,GREENBELT,MD 20723. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1864 EP 1866 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00593 ER PT B AU Nghiem, SV Li, FK Neumann, G Lou, SH AF Nghiem, SV Li, FK Neumann, G Lou, SH GP IEEE TI Results of airborne backscatter measurements during the surface wave dynamics experiment SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 1959 EP 1961 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00624 ER PT B AU Foster, JL Hall, DK Chang, ATC Rango, A Wergin, W Erbe, E AF Foster, JL Hall, DK Chang, ATC Rango, A Wergin, W Erbe, E GP IEEE TI Observations of snow crystal shape in cold snowpacks using scanning electron microscopy SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,HYDROL SCI BRANCH,LAB HYDROL SCI,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 3 U2 5 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2011 EP 2013 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00641 ER PT B AU Smith, JA Chauhan, NS Ballard, J AF Smith, JA Chauhan, NS Ballard, J GP IEEE TI Remote sensing of land surface temperature: The directional viewing effect SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2146 EP 2148 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00685 ER PT B AU Andary, J Spidaliere, P Jurczyk, S Arvidson, T AF Andary, J Spidaliere, P Jurczyk, S Arvidson, T GP IEEE TI Landsat 7 System design overview SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2160 EP & PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00690 ER PT B AU Irons, JR Williams, DL Markham, BL AF Irons, JR Williams, DL Markham, BL GP IEEE TI Landsat 7 and beyond SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,BIOSPHER SCI BRANCH,GREENBELT,MD 20771. RI Irons, James/D-8535-2012; Markham, Brian/M-4842-2013 OI Markham, Brian/0000-0002-9612-8169 NR 0 TC 2 Z9 2 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2161 EP 2163 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00691 ER PT B AU Mattikalli, NM Engman, ET AF Mattikalli, NM Engman, ET GP IEEE TI Land surface remote sensing and geographical information systems for water quality modeling SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LAB HYDROSPHER PROC,HYDROL SCI BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2237 EP 2239 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00716 ER PT B AU Hall, DK Foster, JL Chang, ATC Cavalieri, DJ Wang, JR Benson, CS AF Hall, DK Foster, JL Chang, ATC Cavalieri, DJ Wang, JR Benson, CS GP IEEE TI Analysis of snow cover in Alaska using aircraft microwave data (April 1995) SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,HYDROL SCI BRANCH,GREENBELT,MD 20771. RI Hall, Dorothy/D-5562-2012 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2246 EP 2248 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00719 ER PT B AU Hammer, PD Peterson, DL Smith, WH Dunagan, SE Johnson, LF Strawa, AW Zott, J Langford, G AF Hammer, PD Peterson, DL Smith, WH Dunagan, SE Johnson, LF Strawa, AW Zott, J Langford, G GP IEEE TI Remote sensing with hyperspectral imagery using DASI - An imaging interferometer SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,AMES RES CTR,DIV EARTH SCI,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 1 U1 1 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2276 EP 2278 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00729 ER PT B AU Huemmrich, KF AF Huemmrich, KF GP IEEE TI Effects of shadows on vegetation indices SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,HUGHES STX,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP 2372 EP 2374 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00759 ER PT B AU Russell, CA Irons, JR Dabney, PW AF Russell, CA Irons, JR Dabney, PW GP IEEE TI Estimating hemispherical reflectance and selected biophysical parameters for boreal forest canopies using spectral bidirectional reflectance data acquired by ASAS SO IGARSS '96 - 1996 INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM: REMOTE SENSING FOR A SUSTAINABLE FUTURE, VOLS I - IV LA English DT Proceedings Paper CT 1996 International Geoscience and Remote Sensing Symposium (IGARSS 96) - Remote Sensing for a Sustainable Future CY MAY 21-31, 1996 CL LINCOLN, NE SP IEEE, Geosci & Remote Sensing Soc, Univ Nebraska, Lincoln, NASA, NOAA, USN, Off Naval Res, US Natl Comm Union Radiosci Int, Canon Modern Methods Inc, Univ Nebraska Lincoln, Ctr Adv Land Management Informat Technol, Univ Nebraska Lincoln, Ctr Commun & Informat Sci, Univ Nebraska Lincoln, Ctr Electro Opt, Univ Nebraska Lincoln, Ctr Laser Anal Studies Trace Gas Dynam, Centurion Int Inc, Univ Nebraska Lincoln, Coll Engn & Technol, Univ Nebraska Lincoln, Dept Elect Engn, ERDAS Inc, Univ Nebraska Lincoln, High Plains Climate Ctr, Li Cor Inc, US Geol Survey EROS Data Ctr C1 NASA,GODDARD SPACE FLIGHT CTR,LAB GLOBAL REMOTE SENSING STUDIES,UMCP,GREENBELT,MD 20771. RI Dabney, Philip/C-9976-2013 NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3069-2 J9 INT GEOSCI REMOTE SE PY 1996 BP A4 EP A6 PG 3 WC Remote Sensing SC Remote Sensing GA BF96U UT WOS:A1996BF96U00603 ER PT S AU Casady, JB Sheridan, DC Dillard, WC Johnson, RW AF Casady, JB Sheridan, DC Dillard, WC Johnson, RW BE Gaskill, DK Brandt, CD Nemanich, RJ TI Characterization of 4H-SiC JFETs for use in analog amplifiers capable of 723K operation SO III-NITRIDE, SIC AND DIAMOND MATERIALS FOR ELECTRONIC DEVICES SE MATERIALS RESEARCH SOCIETY CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT Symposium on III-Nitride, SiC and Diamond Materials for Electronic Devices CY APR 08-12, 1996 CL SAN FRANCISCO, CA AB Discrete, buried-gate 4H-SiC JFETs (W/L = 1 mm/5 mu m) were packaged and characterized at temperatures ranging from 290 K to 773 K for use in a hybrid, 4H-SiC analog amplifier. A contaminated passivation oxide was found to limit high-temperature operation initially, but upon removal of the passivation layer the devices demonstrated stable operation to 773 K with adequate amplification (A(V) greater than 200 V/V) up to 673 K. From the 16 devices tested, a peak extrinsic Saturated transconductance (g(msat)) of 27.1 mS/mm was measured at 308 K, corresponding to a channel mobility of 400 cm(2)/V . s, excluding significant series resistance effects. RP Casady, JB (reprint author), AUBURN UNIV,NASA,CTR COMMERCIAL DEV SPACE,DEPT ELECT ENGN,200 BROUN HALL,AUBURN,AL 36849, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0886-7860 BN 1-55899-326-6 J9 MAT RES S C PY 1996 VL 423 BP 105 EP 110 PG 6 WC Materials Science, Multidisciplinary; Materials Science, Characterization & Testing; Materials Science, Coatings & Films SC Materials Science GA BG72B UT WOS:A1996BG72B00016 ER PT B AU Breckinridge, JB AF Breckinridge, JB BE Descour, MR Mooney, JM TI Evolution of imaging spectrometry: Past, present and future SO IMAGING SPECTROMETRY II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Imaging Spectrometry II CY AUG 07-08, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, N Amer Remote Sensing Ind Assoc, Amer Soc Photogrammetry & Remote Sensing AB An overview of the physical principals of imaging spectrometry for detailed characterization oi remote objects and of gas vapors is given. The terms Multi-spectral, Hyperspectral, and Ultra-spectral are defined within the framework of applications and instrument system design approaches. History of the development of imaging spectrometers is reviewed. We are at the threshold of major commercial efforts for these instrument systems. RP Breckinridge, JB (reprint author), CALTECH,JET PROP LAB,OBSERVAT SYST DIV,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 0 TC 7 Z9 7 U1 4 U2 4 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2207-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2819 BP 2 EP 6 DI 10.1117/12.258055 PG 5 WC Instruments & Instrumentation; Remote Sensing; Optics; Spectroscopy SC Instruments & Instrumentation; Remote Sensing; Optics; Spectroscopy GA BG81W UT WOS:A1996BG81W00001 ER PT B AU Gunapala, SD Liu, JK Sundaram, M Bandara, SV Shott, CA Hoelter, T Maker, PD Muller, RE AF Gunapala, SD Liu, JK Sundaram, M Bandara, SV Shott, CA Hoelter, T Maker, PD Muller, RE BE Dereniak, EL Sampson, RE TI Long-wavelength 256x256 QWIP hand-held camera SO INFRARED DETECTORS AND FOCAL PLANE ARRAYS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Infrared Detectors and Focal Plane Arrays IV Conference CY APR 10-11, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE multi-quantum-well; intersubband; infrared detectors; long-wavelength; GaAs; focal plane array; infrared camera C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,PASADENA,CA 91109. NR 0 TC 9 Z9 9 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2127-8 J9 P SOC PHOTO-OPT INS PY 1996 VL 2746 BP 124 EP 133 DI 10.1117/12.243033 PG 10 WC Optics SC Optics GA BF93G UT WOS:A1996BF93G00013 ER PT B AU Babu, SR Hu, K Manthripragada, S Martineau, RJ Kotecki, C Peters, F Burgess, A Krebs, D Mott, DB Ewin, A Miles, A Nguyen, T Shu, P AF Babu, SR Hu, K Manthripragada, S Martineau, RJ Kotecki, C Peters, F Burgess, A Krebs, D Mott, DB Ewin, A Miles, A Nguyen, T Shu, P BE Longshore, RE Baars, JW TI Improved HgCdTe detectors with novel anti-reflection coating SO INFRARED DETECTORS FOR REMOTE SENSING: PHYSICS, MATERIALS, AND DEVICES SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Infrared Detectors for Remote Sensing - Physics, Materials, and Devices CY AUG 08-09, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE HgCdTe; MCT; focal plane array; passivation; interfacial layer; optical cavity design C1 NASA,GODDARD SPACE FLIGHT CTR,SOLID STATE DEVICE DEV BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2204-5 J9 P SOC PHOTO-OPT INS PY 1996 VL 2816 BP 84 EP 89 PG 6 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG61M UT WOS:A1996BG61M00009 ER PT B AU Pain, B Fossum, ER AF Pain, B Fossum, ER BE Fossum, ER TI Design and operation of self-biased high-gain amplifier arrays for photon-counting sensors SO INFRARED READOUT ELECTRONICS III SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 3rd Biannual SPIE Meeting on Infrared Readout Electronics CY APR 09, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE noise-reduction; IR readout; photon-counting; high-gain amplifier C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 3 Z9 3 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2126-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2745 BP 69 EP 77 DI 10.1117/12.243541 PG 9 WC Optics SC Optics GA BG12C UT WOS:A1996BG12C00007 ER PT B AU Zhou, ZM Pain, B Panicacci, R Mansoorian, B Nakamura, J Fossum, ER AF Zhou, ZM Pain, B Panicacci, R Mansoorian, B Nakamura, J Fossum, ER BE Fossum, ER TI On-focal-plane ADC: Recent progress at JPL SO INFRARED READOUT ELECTRONICS III SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 3rd Biannual SPIE Meeting on Infrared Readout Electronics CY APR 09, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 9 Z9 10 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2126-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2745 BP 111 EP 122 DI 10.1117/12.243529 PG 12 WC Optics SC Optics GA BG12C UT WOS:A1996BG12C00011 ER PT B AU Cunningham, TJ AF Cunningham, TJ BE Fossum, ER TI Progress in GaAs JFETs for 4-Kelvin IR readout applications SO INFRARED READOUT ELECTRONICS III SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 3rd Biannual SPIE Meeting on Infrared Readout Electronics CY APR 09, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE GaAs JFET; deep cryogenic; low temperature; infrared detectors; readout electronics; carrier freeze-out; low frequency noise; leakage current; HF etchant C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2126-X J9 P SOC PHOTO-OPT INS PY 1996 VL 2745 BP 130 EP 136 DI 10.1117/12.243531 PG 7 WC Optics SC Optics GA BG12C UT WOS:A1996BG12C00013 ER PT B AU Lang, HR Welch, R Miyazaki, Y Bailey, B Kelly, G AF Lang, HR Welch, R Miyazaki, Y Bailey, B Kelly, G BE Scholl, MS Andresen, BF TI The ASTER along-track stereo experiment - A potential source of global DEM data in the late 1990's SO INFRARED SPACEBORNE REMOTE SENSING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th Conference on Infrared Spaceborne Remote Sensing CY AUG 06-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE ASTER; EOS; along-track stereo; topography; DEMs C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2205-3 J9 P SOC PHOTO-OPT INS PY 1996 VL 2817 BP 95 EP 97 DI 10.1117/12.255173 PG 3 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG61Q UT WOS:A1996BG61Q00010 ER PT B AU Pieri, D AF Pieri, D BE Scholl, MS Andresen, BF TI Monitoring volcanism and transient processes with the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) SO INFRARED SPACEBORNE REMOTE SENSING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th Conference on Infrared Spaceborne Remote Sensing CY AUG 06-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE ASTER; volcanism; natural hazards; transient events; remote sensing; thermal infrared C1 CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2205-3 J9 P SOC PHOTO-OPT INS PY 1996 VL 2817 BP 132 EP 142 DI 10.1117/12.255177 PG 11 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG61Q UT WOS:A1996BG61Q00014 ER PT B AU Shupe, D Huber, AK Hacking, P AF Shupe, D Huber, AK Hacking, P BE Scholl, MS Andresen, BF TI The image simulator for the wide-field infrared explorer SO INFRARED SPACEBORNE REMOTE SENSING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th Conference on Infrared Spaceborne Remote Sensing CY AUG 06-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE infrared astronomy; small explorer missions; image simulation; confusion noise; data analysis C1 CALTECH,JET PROP LAB,CTR INFRARED PROC & ANAL,PASADENA,CA. NR 0 TC 2 Z9 2 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2205-3 J9 P SOC PHOTO-OPT INS PY 1996 VL 2817 BP 214 EP 223 DI 10.1117/12.255183 PG 10 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG61Q UT WOS:A1996BG61Q00022 ER PT B AU Roellig, TL Mochizuki, K Onaka, T Tanabe, T Yamamura, I Yuen, LM AF Roellig, TL Mochizuki, K Onaka, T Tanabe, T Yamamura, I Yuen, LM BE Scholl, MS Andresen, BF TI Flight performance of the Mid-Infrared Spectrometer on the Infrared Telescope in Space mission SO INFRARED SPACEBORNE REMOTE SENSING IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th Conference on Infrared Spaceborne Remote Sensing CY AUG 06-07, 1996 CL DENVER, CO SP Soc Photo Opt Instrumentat Engineers, NARSIA, ASPRS DE astronomy; infrared; space missions; Infrared Telescope in Space; infrared spectrometer C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 6 Z9 6 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2205-3 J9 P SOC PHOTO-OPT INS PY 1996 VL 2817 BP 258 EP 266 DI 10.1117/12.255187 PG 9 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BG61Q UT WOS:A1996BG61Q00027 ER PT B AU Beauchamp, PM Benoit, RT Brown, RH Bruce, CF Chen, GS Crisp, MP Davidson, JM Fraschetti, GA Petrick, SW Rodgers, DH Sandel, B Sepulveda, CA Soderblom, LA Wang, D Soll, SL Yelle, RV AF Beauchamp, PM Benoit, RT Brown, RH Bruce, CF Chen, GS Crisp, MP Davidson, JM Fraschetti, GA Petrick, SW Rodgers, DH Sandel, B Sepulveda, CA Soderblom, LA Wang, D Soll, SL Yelle, RV BE Andersen, BF Scholl, MS TI Planetary Integrated Camera Spectrometer (PICS): A new approach to developing a self-sequencing integrated, multiwavelength instrument SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 698 EP 711 DI 10.1117/12.243513 PG 14 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00071 ER PT B AU Aumann, HH Overoye, K AF Aumann, HH Overoye, K BE Andersen, BF Scholl, MS TI The Atmospheric Infrared Sounder (AIRS) on the earth observing system: In-orbit radiometric and spectral calibration SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE EOS; AIRS; infrared; sounder; echelle grating; HgCdTe detector; Stirling cycle cryocooler; calibration C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 4 Z9 4 U1 1 U2 3 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 712 EP 721 DI 10.1117/12.243514 PG 10 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00072 ER PT B AU Gunapala, SD Liu, JK Sundaram, M Bandara, SV Shott, CA Hoelter, T Maker, PD Muller, RE AF Gunapala, SD Liu, JK Sundaram, M Bandara, SV Shott, CA Hoelter, T Maker, PD Muller, RE BE Andersen, BF Scholl, MS TI Long-Wavelength Quantum Well Infrared Photodetector (QWIP) research at Jet Propulsion Laboratory SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE multi-quantum-well; intersubband; infrared detectors; long-wavelength (LWIR); very long wavelength (VWIR); GaAs; focal plane array; infrared camera C1 CALTECH,JET PROP LAB,CTR SPACE MICROELECT TECHNOL,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 722 EP 730 DI 10.1117/12.243515 PG 9 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00073 ER PT B AU Simmons, L Fanson, J Irace, W Kwok, J Werner, M AF Simmons, L Fanson, J Irace, W Kwok, J Werner, M BE Andersen, BF Scholl, MS TI SIRTF: The fourth great observatory SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers C1 CALTECH,JET PROP LAB,SIRTF PROJECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 731 EP 744 DI 10.1117/12.243516 PG 14 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00074 ER PT B AU Coulter, DR Macenka, SA Lysek, MJ Larson, ME AF Coulter, DR Macenka, SA Lysek, MJ Larson, ME BE Andersen, BF Scholl, MS TI The SIRTF Telescope Test Facility SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE optics testing; cryogenic optics; SIRTF; telescope C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 745 EP 750 DI 10.1117/12.243517 PG 6 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00075 ER PT B AU Schember, H Kemp, J Ames, H Hacking, P Herter, T Fafaul, B Everett, D Sparr, L AF Schember, H Kemp, J Ames, H Hacking, P Herter, T Fafaul, B Everett, D Sparr, L BE Andersen, BF Scholl, MS TI The Wide-Field Infrared Explorer (WIRE) SO INFRARED TECHNOLOGY AND APPLICATIONS XXII SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 22nd Infrared Technology and Applications Conference CY APR 08-12, 1996 CL ORLANDO, FL SP Soc Photo Opt Instrumentat Engineers DE infrared space telescopes; infrared arrays; starburst galaxies; cryostats; cryogenic space telescopes C1 CALTECH,JET PROP LAB,PASADENA,CA. NR 0 TC 9 Z9 9 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2125-1 J9 P SOC PHOTO-OPT INS PY 1996 VL 2744 BP 751 EP 760 DI 10.1117/12.243518 PG 10 WC Optics SC Optics GA BG07U UT WOS:A1996BG07U00076 ER PT B AU Man, KF Boumsellek, S AF Man, KF Boumsellek, S GP INST ENVIRONM SCI TI Sub-ppb oxygen and moisture contaminant detection in semiconductor processing SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - CONTAMINATION CONTROL: SYMPOSIUM ON MINIENVIRONMENTS/42ND ANNUAL TECHNICAL MEETING - EXPANDING OUR TECHNICAL EXCELLENCE THROUGH EDUCATION LA English DT Proceedings Paper CT Contamination Control Symposium on Minienvironments/42nd Annual Technical Meeting of the Institute-of-Environmental-Sciences - Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci DE oxygen detector; moisture detector; contamination control; processing environment; sub-ppb detection; mass spectrometry; resonant electron attachment; ray tracing; reversal ionizer C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-51-7 PY 1996 BP 178 EP 183 PG 6 WC Construction & Building Technology; Environmental Sciences SC Construction & Building Technology; Environmental Sciences & Ecology GA BF95R UT WOS:A1996BF95R00026 ER PT B AU Krasich, M AF Krasich, M GP INST ENVIRONM SCI TI Cost effective assessment of system reliability using data from subsystem/assembly level testing SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - PRODUCT RELIABILITY DESIGN, TEST, AND EVALUATION LA English DT Proceedings Paper CT 42nd Annual Technical of the Institute-of-Environmental-Sciences on Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci DE achieved reliability; goal reliability; assembly level test time; system level test time; test acceleration; subsystem reliability; system reliability C1 CALTECH,JET PROP LAB,PASADENA,CA 91125. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-52-5 PY 1996 BP 36 EP 41 PG 6 WC Acoustics; Environmental Sciences SC Acoustics; Environmental Sciences & Ecology GA BF95Q UT WOS:A1996BF95Q00006 ER PT B AU Agajanian, AM AF Agajanian, AM GP INST ENVIRONM SCI TI Performance evaluation of residual Galileo Bellows Actuator Assemblies SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - PRODUCT RELIABILITY DESIGN, TEST, AND EVALUATION LA English DT Proceedings Paper CT 42nd Annual Technical of the Institute-of-Environmental-Sciences on Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci C1 CALTECH,JET PROP LAB,PASADENA,CA 91125. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-52-5 PY 1996 BP 82 EP 88 PG 7 WC Acoustics; Environmental Sciences SC Acoustics; Environmental Sciences & Ecology GA BF95Q UT WOS:A1996BF95Q00011 ER PT B AU Hughes, WO McNelis, AM AF Hughes, WO McNelis, AM GP INST ENVIRONM SCI TI Cassini Titan IV acoustic blanket development and testing SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - PRODUCT RELIABILITY DESIGN, TEST, AND EVALUATION LA English DT Proceedings Paper CT 42nd Annual Technical of the Institute-of-Environmental-Sciences on Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci DE acoustics; acoustic blankets; blankets; Cassini; payload fairing; spacecraft acoustic environment; spacecraft acoustic testing; Titan IV; vibroacoustics C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-52-5 PY 1996 BP 205 EP 221 PG 17 WC Acoustics; Environmental Sciences SC Acoustics; Environmental Sciences & Ecology GA BF95Q UT WOS:A1996BF95Q00027 ER PT B AU Bergen, TF Kern, DL AF Bergen, TF Kern, DL GP INST ENVIRONM SCI TI Attenuation of the Cassini spacecraft vibroacoustic environment SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - PRODUCT RELIABILITY DESIGN, TEST, AND EVALUATION LA English DT Proceedings Paper CT 42nd Annual Technical of the Institute-of-Environmental-Sciences on Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci DE Cassini spacecraft; Titan IV payload fairing; acoustic blankets; damping; reverberant acoustic test; noise reduction; vibroacoustic environment C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-52-5 PY 1996 BP 254 EP 265 PG 12 WC Acoustics; Environmental Sciences SC Acoustics; Environmental Sciences & Ecology GA BF95Q UT WOS:A1996BF95Q00031 ER PT B AU Bergen, TF Himelblau, H Kern, DL AF Bergen, TF Himelblau, H Kern, DL GP INST ENVIRONM SCI TI Development of acoustic test criteria for the Cassini spacecraft SO INSTITUTE OF ENVIRONMENTAL SCIENCES 1996 PROCEEDINGS - PRODUCT RELIABILITY DESIGN, TEST, AND EVALUATION LA English DT Proceedings Paper CT 42nd Annual Technical of the Institute-of-Environmental-Sciences on Expanding Our Technical Excellence Through Education CY MAY 12-16, 1996 CL ORLANDO, FL SP Inst Environm Sci DE Cassini spacecraft; Titan IV; payload fairing; flight acoustic data; acoustic test criteria; acoustic blankets; reverberant acoustic test; vibroacoustics C1 CALTECH,JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST ENVIRONMENTAL SCIENCES PI MT PROSPECT PA 940 E NORTHWEST HIGHWAY, MT PROSPECT, IL 60056 BN 1-877862-52-5 PY 1996 BP 266 EP 285 PG 20 WC Acoustics; Environmental Sciences SC Acoustics; Environmental Sciences & Ecology GA BF95Q UT WOS:A1996BF95Q00032 ER PT J AU Gary, CK AF Gary, CK TI Perspectives on the application of optical matrix processors SO INTEGRATED COMPUTER-AIDED ENGINEERING LA English DT Review ID VECTOR PROCESSOR; MULTIPLICATION; COMPUTATION; TRANSFORMS; SYSTEMS AB Researchers have proposed a great number of optical matrix processing architectures and devices, each having significant advantages and disadvantages. However, no general metrics have been established to compare processors, and there has been little work to implement optical matrix processors for specific applications. In this article, we examine the range of proposed optical matrix processors both to determine the most promising classes of applications and, by establishing performance criteria, to select the best architectures and algorithms for these applications. This examination concludes that the greatest current potential is for analog optical matrix-vector processors to analyze slowly varying or invariant systems with high data throughput rates. (C) 1996 John Wiley & Sons, Inc.* RP Gary, CK (reprint author), NASA,AMES RES CTR,MAIL STOP 269-3,MOFFETT FIELD,CA 94035, USA. NR 47 TC 0 Z9 0 U1 1 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 1069-2509 J9 INTEGR COMPUT-AID E JI Integr. Comput.-Aided Eng. PY 1996 VL 3 IS 2 BP 139 EP 148 PG 10 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary SC Computer Science; Engineering GA UA145 UT WOS:A1996UA14500006 ER PT B AU Beheim, G Salupo, C AF Beheim, G Salupo, C BE TabibAzar, M TI Magnetron plasma etching of SiC for microstructures SO INTEGRATED OPTICS AND MICROSTRUCTURES III SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Integrated Optics and Microstructures III Conference CY JAN 29, 1996 CL SAN JOSE, CA SP Soc Photo Opt Instrumentat Engineers, Adv Res Projects Agcy C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 1 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-2060-3 J9 P SOC PHOTO-OPT INS PY 1996 VL 2686 BP 82 EP 86 DI 10.1117/12.236126 PG 5 WC Optics SC Optics GA BF31K UT WOS:A1996BF31K00009 ER PT B AU Groeneweg, JF AF Groeneweg, JF BE Hill, FA Lawrence, R TI Advanced subsonic aircraft engine noise reduction research SO INTER-NOISE 96 - THE 1996 INTERNATIONAL CONGRESS ON NOISE CONTROL ENGINEERING, 25TH ANNIVERSARY CONGRESS - LIVERPOOL, PROCEEDINGS, BOOKS 1-6: NOISE CONTROL - THE NEXT 25 YEARS LA English DT Proceedings Paper CT 25th International Congress on Noise Control Engineering (Inter-Noise 96) - Noise control: The Next 25 Years CY JUL 30-AUG 02, 1996 CL LIVERPOOL, ENGLAND AB Engine noise reduction research currently underway in the NASA Advanced Subsonic Technology Noise Reduction Program is described. Emphasis is on noise reduction technology for high to ultra-high bypass ratio turbofan engines which will dominate the airline fleets early in the 21st century. In terms of noise components, primary emphasis is on the fan with secondary effort on the jet for engines at the lower end of the bypass ratio range. The approach to fan noise prediction consists of modeling the chain of physical processes beginning with flow disturbances on fan blades and ending with far field sound levels. For the jet, CFD solutions for the nozzle geometries are coupled to combined aeroacoustic source/radiation models. On the experimental side, realistic models of fans, nacelles, and nozzles are tested in aeroacoustic wind tunnels. Comparisons of predicted and measured noise levels are presented as indicators of progress toward developing improved low-noise design tools. The challenges of applying active control concepts to turbofan noise are discussed including both cancellation and source modification approaches. RP Groeneweg, JF (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU INST ACOUSTICS PI ST ALBANS PA AGRICULTURE HOUSE 5 HOLYWELL HILL, ST ALBANS, HERTS, ENGLAND AL1 1EU BN 1-873082-91-6 PY 1996 BP 317 EP 322 PG 6 WC Acoustics SC Acoustics GA BH81F UT WOS:A1996BH81F00058 ER PT J AU Weaver, ML Kaufman, MJ Noebe, RD AF Weaver, ML Kaufman, MJ Noebe, RD TI Kinetics of static strain aging in polycrystalline NiAl-based alloys SO INTERMETALLICS LA English DT Article DE nickel aluminides, based on NiAl; microalloying; strain-aging; yield stress ID PRESSURE; BEHAVIOR; FLOW AB The kinetics of yield point return have been studied in two NiAl-based alloys as a function of aging time at temperatures between 300 and 700 K. The results indicate that the upper yield stress increment, Delta sigma(u) (i.e., stress difference between the upper yield point and the final flow stress achieved during prestraining), in conventional purity (CP-NiAl) and in high purity carbon-doped (NiAl-C) material first increased with a t(2/3) relationship before reaching a plateau. This behavior suggests that a Cottrell locking mechanism is the cause for yield points in NiAl. In addition, positive y-axis intercepts were observed in plots of Delta sigma(u) versus t(2/3) suggesting the operation of a Snoek mechanism. Analysis according to the Cottrell-Bilby model of atmosphere formation around dislocations yields an activation energy for yield point return in the range 70 to 76 kJ/mol which is comparable to the activation energy for diffusion of interstitial impurities in bcc metals. It is, thus, concluded that the kinetics of static strain aging in NiAl are controlled by the locking of dislocations by Cottrell atmospheres of carbon atoms around dislocations. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP Weaver, ML (reprint author), UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611, USA. RI Kaufman, Michael/A-7737-2012 NR 43 TC 14 Z9 14 U1 0 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0966-9795 J9 INTERMETALLICS JI Intermetallics PY 1996 VL 4 IS 2 BP 121 EP 129 DI 10.1016/0966-9795(95)00027-5 PG 9 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA TQ482 UT WOS:A1996TQ48200005 ER PT J AU Weaver, ML Noebe, RD Lewandowski, JJ Oliver, BF Kaufman, MJ AF Weaver, ML Noebe, RD Lewandowski, JJ Oliver, BF Kaufman, MJ TI Observations of static strain-aging in polycrystalline NiAl SO INTERMETALLICS LA English DT Article DE nickel aluminides, based on TiAl; mechanical properties at ambient temperature, microalloying, strain-aging, yield stress ID HYDROSTATIC-PRESSURE; SINGLE-CRYSTAL; BEHAVIOR; DEFORMATION; FRACTURE; FLOW AB Static strain-aging has been investigated in eight polycrystalline NiAl alloys. After annealing at 1100 K for 7200 a followed by furnace cooling, high-purity, nitrogen-doped, and titanium-doped alloys exhibited continuous yielding, while conventional-purity and carbon-doped alloys exhibited distinct upper yield points and Luders strains. Either water quenching from 1100 K or prestraining via hydrostatic pressurization suppressed the yield points in the latter alloys, but they could be reintroduced by further annealing treatments. Yield points could be re-introduced more rapidly if the specimens were prestrained uniaxially rather than hydrostatically, owing to the arrangement of dislocations into cell structures during uniaxial deformation. Chemical analysis suggests that the species responsible for strain-aging is interstitial carbon. Copyright (C) 1996 Elsevier Science Limited C1 FLORIDA A&M UNIV,FLORIDA STATE UNIV,COLL ENGN,DEPT MECH ENGN,TALLAHASSEE,FL 32310. NASA,LEWIS RES CTR,CLEVELAND,OH 44135. CASE WESTERN RESERVE UNIV,DEPT MAT SCI & ENGN,CLEVELAND,OH 44106. UNIV TENNESSEE,DEPT MAT SCI & ENGN,KNOXVILLE,TN 37996. UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611. RP Weaver, ML (reprint author), FLORIDA A&M UNIV,CTR NONLINEAR & NONEQUILIBRIUM AEROSCI,TALLAHASSEE,FL 32310, USA. RI Kaufman, Michael/A-7737-2012 NR 32 TC 8 Z9 8 U1 0 U2 5 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0966-9795 J9 INTERMETALLICS JI Intermetallics PY 1996 VL 4 IS 7 BP 533 EP 542 DI 10.1016/0966-9795(96)00040-4 PG 10 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA VG244 UT WOS:A1996VG24400004 ER PT J AU Weaver, ML Noebe, RD Kaufman, MJ AF Weaver, ML Noebe, RD Kaufman, MJ TI Observations of dynamic strain aging in polycrystalline NiAl SO INTERMETALLICS LA English DT Article DE nickel aluminides, based on NiAl; mechanical properties at high temperatures, strain aging ID SINGLE-CRYSTALS; MECHANICAL-PROPERTIES; BEHAVIOR; ALLOYS AB Dynamic strain aging has been investigated at temperatures between 77 and 1100 K in eight polycrystalline NiAl alloys. The 0.2% offset yield stress and work hardening rates for these alloys generally decreased with increasing temperature. However, local plateaus or maxima were observed in conventional purity and carbon doped alloys at intermediate temperatures (600-900 K). This anomalous behavior was not observed in low interstitial high-purity, nitrogen doped, or in titanium doped materials. Low or negative strain rate sensitivities (SRS) were also observed in all eight alloys in this intermediate temperature range. Coincident with the occurrence of negative SRS was the occurrence of serrated flow in conventional purity alloys containing high concentrations of Si in addition to C. These phenomena have been attributed to dynamic strain aging (DSA). Chemical analysis of the alloys used in this study suggests that the main species causing strain aging in polycrystalline NiAl is C but indicate that residual Si impurities can enhance the strain aging effect. (C) 1996 Elsevier Science Limited. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. UNIV FLORIDA,DEPT MAT SCI & ENGN,GAINESVILLE,FL 32611. FLORIDA A&M UNIV FLORIDA STATE UNIV,COLL ENGN,DEPT MECH ENGN,TALLAHASSEE,FL 32310. RP Weaver, ML (reprint author), FLORIDA A&M UNIV,CTR NONLINEAR & NONEQUILIBRIUM AEROSCI,TALLAHASSEE,FL 32310, USA. RI Kaufman, Michael/A-7737-2012 NR 30 TC 16 Z9 17 U1 0 U2 2 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0966-9795 J9 INTERMETALLICS JI Intermetallics PY 1996 VL 4 IS 8 BP 593 EP 600 DI 10.1016/0966-9795(96)00045-3 PG 8 WC Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Chemistry; Materials Science; Metallurgy & Metallurgical Engineering GA VT236 UT WOS:A1996VT23600002 ER PT S AU Alkalai, L Fang, WC AF Alkalai, L Fang, WC GP IEEE COMP SOC TI An integrated microspacecraft avionics architecture using 3D multichip module building blocks SO INTERNATIONAL CONFERENCE ON COMPUTER DESIGN - VLSI IN COMPUTERS AND PROCESSORS, PROCEEDINGS SE PROCEEDINGS - IEEE INTERNATIONAL CONFERENCE ON COMPUTER DESIGN LA English DT Proceedings Paper CT 1996 IEEE International Conference on Computer Design - VLSI in Computers and Processors (ICCD 96) CY OCT 07-09, 1996 CL AUSTIN, TX SP IEEE Comp Soc Tech Comm Design Automat, IEEE Circuits & Syst Soc RP Alkalai, L (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,MS 198-229,PASADENA,CA 91109, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU I E E E, COMPUTER SOC PRESS PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720 SN 1063-6404 BN 0-8186-7554-3 J9 PR IEEE COMP DESIGN PY 1996 BP 141 EP 144 DI 10.1109/ICCD.1996.563548 PG 4 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG68D UT WOS:A1996BG68D00025 ER PT B AU Rosenholtz, R Watson, AB AF Rosenholtz, R Watson, AB BE Delogne, P TI Perceptual adaptive JPEG coding SO INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, PROCEEDINGS - VOL I LA English DT Proceedings Paper CT International Conference on Image Processing (ICIP-96) CY SEP 16-19, 1996 CL LAUSANNE, SWITZERLAND SP IEEE Signal Proc Soc C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 11 Z9 11 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3259-8 PY 1996 BP 901 EP 904 PG 4 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BG63E UT WOS:A1996BG63E00226 ER PT B AU Huck, FO Fales, CL Rahman, ZU AF Huck, FO Fales, CL Rahman, ZU BE Delogne, P TI On the information-theoretic assessment of visual communication SO INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, PROCEEDINGS - VOL II LA English DT Proceedings Paper CT International Conference on Image Processing (ICIP-96) CY SEP 16-19, 1996 CL LAUSANNE, SWITZERLAND SP IEEE Signal Proc Soc C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-3259-8 PY 1996 BP 437 EP 440 PG 4 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BG63F UT WOS:A1996BG63F00110 ER PT J AU Begault, DR Pittman, MT AF Begault, DR Pittman, MT TI Three-dimensional audio versus head-down traffic alert and collision avoidance system displays SO INTERNATIONAL JOURNAL OF AVIATION PSYCHOLOGY LA English DT Article ID VISUAL-SEARCH; FIELD AB The advantage of a head-up auditory display for situational awareness was evaluated in an experiment designed to measure and compare the acquisition time for capturing visual targets under two conditions: standard head-down Traffic Alert and Collision Avoidance System (TCAS) display and three-dimensional (3-D) audio TCAS presentation. (The technology used for 3-D audio presentation allows a stereo headphone user to potentially localize a sound at any externalized position in 3-D auditory space). Ten commercial airline crews were tested under full-mission simulation conditions at the NASA-Ames Crew-Vehicle Systems Research Facility Advanced Concepts Flight Simulator. Scenario software generated targets corresponding to aircraft that activated a 3-D aural advisory (the head-up auditory condition) or a standard, visual-audio TCAS advisory (map display with monaural audio alert). Results showed a significant difference in target acquisition time between the two conditions, favoring the 3-D audio TCAS condition by 500 ms. RP Begault, DR (reprint author), SAN JOSE STATE UNIV FDN,NASA,AMES RES CTR,MAIL STOP 262-2,MOFFETT FIELD,CA 94035, USA. NR 18 TC 29 Z9 29 U1 3 U2 7 PU LAWRENCE ERLBAUM ASSOC INC PI MAHWAH PA 10 INDUSTRIAL AVE, MAHWAH, NJ 07430-2262 SN 1050-8414 J9 INT J AVIAT PSYCHOL JI Int. J. Aviat. Psychol. PY 1996 VL 6 IS 1 BP 79 EP 93 DI 10.1207/s15327108ijap0601_5 PG 15 WC Psychology, Applied SC Psychology GA TU682 UT WOS:A1996TU68200005 PM 11539173 ER PT J AU Chute, RD Wiener, EL AF Chute, RD Wiener, EL TI Cockpit-cabin communication .2. Shall we tell the pilots? SO INTERNATIONAL JOURNAL OF AVIATION PSYCHOLOGY LA English DT Article AB In a previous article (Chute & Wiener, 1995), we explored the coordination between the ''two cultures'' in an airliner's crew: cockpit and cabin. In this article, we discuss a particular problem: the dilemma facing the cabin crew when they feel that they have safety-critical information and must decide whether to take it to the cockpit. We explore the reasons for the reluctance of the flight attendant to come forward with the information, such as self-doubt about the accuracy or importance of the information, fear of dismissal or rebuke by the pilots, and misunderstanding of the sterile cockpit rule. Insight into crew attitudes was based on our examination of accident and incident reports and data from questionnaires submitted by pilots and flight attendants at two airlines. The results show confusion and disagreement about what is permissible to take to the cockpit when it is sterile, as well as imbalances in authority and operational knowledge. Possible remedies are proposed. C1 SAN JOSE STATE UNIV,SAN JOSE,CA 95192. NASA,AMES RES CTR,SAN JOSE,CA. UNIV MIAMI,MIAMI,FL 33152. NR 22 TC 13 Z9 13 U1 2 U2 7 PU LAWRENCE ERLBAUM ASSOC INC PI MAHWAH PA 10 INDUSTRIAL AVE, MAHWAH, NJ 07430-2262 SN 1050-8414 J9 INT J AVIAT PSYCHOL JI Int. J. Aviat. Psychol. PY 1996 VL 6 IS 3 BP 211 EP 231 DI 10.1207/s15327108ijap0603_1 PG 21 WC Psychology, Applied SC Psychology GA VE721 UT WOS:A1996VE72100001 PM 11540138 ER PT J AU Lafon, A Yee, HC AF Lafon, A Yee, HC TI Dynamical approach study of spurious steady-state numerical solutions of nonlinear differential equations .3. The effects of nonlinear source terms in reaction-convection equations SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS LA English DT Article DE spurious steady-state numerical solutions; spurious asymptotes; global asymptotic behavior; reaction convection equation; spurious numerical solutions; finite difference methods; method of lines AB The objective of this paper is to investigate how well numerical steady-state solutions can mimic true steady-states of a model nonlinear reaction-convection. In order to assess the possible sources of errors, slow convergence and nonconvergence of steady-state numerical solutions when using the time-dependent approach, six different numerical aspects are addressed. First, spurious stable and unstable steady-state numerical solutions (numerically irrelevant solutions) can be independently introduced by spatial and temporal discretizations satisfying the same boundary condition and initial data. Second, the various numerical treatments of the reaction term. can affect the stability of the spurious as well as the exact steady-state solutions. Third, the time discretization can destabilize the spurious stable steady-state numerical solutions that are introduced by the spatial discretizations or vice versa. Fourth, for a given finite difference method, the strength of the coefficient of the convection term and stiffness of the nonlinear source term can strongly affect the permissibility of spurious steady-state numerical solutions. Fifth, the possible cause of convergence to a spurious steady-state and a suggestion to avoid spurious steady-states are discussed. Finally, the numerical phenomenon of incorrect propagation speeds of discontinuities may be linked to the existence of some spurious stable steady-state numerical solutions. C1 NASA,AMES RES CTR,FLUID DYNAM DIV,MOFFETT FIELD,CA 94035. RP Lafon, A (reprint author), SDR,DRET,DIV RES,4 BIS AVE PORTE ISSY,F-75015 PARIS,FRANCE. NR 33 TC 12 Z9 12 U1 0 U2 1 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1061-8562 J9 INT J COMPUT FLUID D JI Int. J. Comput. Fluid Dyn. PY 1996 VL 6 IS 1 BP 1 EP 36 DI 10.1080/10618569608940772 PG 36 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA UQ433 UT WOS:A1996UQ43300002 ER PT J AU Lafon, A Yee, HC AF Lafon, A Yee, HC TI Dynamical approach study of spurious steady-state numerical solutions of nonlinear differential equations .4. Stability vs methods of discretizing nonlinear source terms in reaction-convection equations SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS LA English DT Article DE spurious steady-state numerical solutions; stability; spurious asymptotes; global asymptotic behavior; reaction-convection equation; spurious numerical solutions; finite difference methods AB The objectives of this paper are to investigate how various numerical treatments of the nonlinear source term in a model reaction-convection equation can affect the stability of steady-state numerical solutions and to show under what conditions the conventional linearized stability analysis breaks down. The symbiotic relationship between the strong dependence on initial data and the permissibility of spurious stable and unstable asymptotic numerical solutions for explicit and implicit treatment of the source terms are revealed and analyzed. It can be shown that nonlinear analysis uncovers much of the nonlinear phenomena which linearized analysis is not capable of predicting in a model reaction-convection equation. C1 NASA,AMES RES CTR,FLUID DYNAM DIV,MOFFETT FIELD,CA 94035. RP Lafon, A (reprint author), SDR,DRET,4 BIS AVE PORTE ISSY,F-75015 PARIS,FRANCE. NR 24 TC 12 Z9 12 U1 0 U2 0 PU GORDON BREACH SCI PUBL LTD PI READING PA C/O STBS LTD PO BOX 90, READING, BERKS, ENGLAND RG1 8JL SN 1061-8562 J9 INT J COMPUT FLUID D JI Int. J. Comput. Fluid Dyn. PY 1996 VL 6 IS 2 BP 89 EP 123 DI 10.1080/10618569608940776 PG 35 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA UN810 UT WOS:A1996UN81000001 ER PT J AU Girimaji, SS AF Girimaji, SS TI A study of turbulent combustion and its modeling using a diffusion reaction equation model SO INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE LA English DT Article ID MAPPING CLOSURE; SCALAR AB An enhanced diffusion-reaction system (DRS) is proposed as a statistical model for the evolution of multiple scalars undergoing mixing and reaction in an isotropic turbulence field. The DRS model is dose enough to the scalar equations in a reacting how that other statistical models of turbulent mixing, which decouple the velocity field from scalar mixing and reaction (e.g. mapping closure model, assumed-pdf models), cannot ditinguish the model (DRS) equations from the exact equations. Numerical simulations of the DRS equations are performed for three scalars evolving from non-premixed initial conditions. A simple one-step reversible reaction is considered. The data from the simulations are used to (i) study the effect of chemical conversion on the evolution of scalar statistics, and (ii) evaluate other models (mapping-closure model, assumed multivariate beta-pdf model) leading to inferences about engineering approaches to turbulent combustion modeling. RP Girimaji, SS (reprint author), NASA,LANGLEY RES CTR,INST COMP APPLICAT SCI & ENGN,MS 132C,HAMPTON,VA 23681, USA. NR 12 TC 2 Z9 2 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0020-7225 J9 INT J ENG SCI JI Int. J. Eng. Sci. PD JAN PY 1996 VL 34 IS 1 BP 47 EP 58 DI 10.1016/0020-7225(95)00076-3 PG 12 WC Engineering, Multidisciplinary SC Engineering GA TM716 UT WOS:A1996TM71600004 ER PT J AU Ruggieri, C Panontin, TL Dodds, RH AF Ruggieri, C Panontin, TL Dodds, RH TI Numerical modeling of ductile crack growth in 3-D using computational cell elements SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article ID DEPENDENT PLASTICITY MODELS; VOID GROWTH; FRACTURE; COALESCENCE; INTEGRATION; BEHAVIOR; RUPTURE; FAILURE; SOLIDS; TIP AB This study describes a 3-D computational framework to model stable extension of a macroscopic crack under mode I conditions in ductile metals. The Gurson-Tvergaard dilatant plasticity model for voided materials describes the degradation of material stress capacity. Fixed-size, computational cell elements defined over a thin layer at the crack plane provide an explicit length scale for the continuum damage process. Outside this layer, the material remains undamaged by void growth, consistent with metallurgical observations. An element vanish procedure removes highly voided cells from further consideration in the analysis, thereby creating new traction-free surfaces which extend the macroscopic crack. The key micro-mechanics parameters are D, the thickness of the computational cell layer, and f(0), the initial cell porosity. Calibration of these parameters proceeds through analyses of ductile tearing to match R-curves obtained from testing of deep-notch, through-crack bend specimens. The resulting computational model, coupled with refined 3-D meshes, enables the detailed study of non-uniform growth along the crack front and predictions of specimen size, geometry and loading mode effects on tearing resistance. here described by J-Delta a curves. Computational and experimental studies are described for shallow and deep-notch SE(B) specimens having side grooves and for a conventional C(T) specimen without side grooves. The computational models prove capable of predicting the measured R-curves, post-test measured crack profiles, and measured load-displacement records. C1 NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. RP Ruggieri, C (reprint author), UNIV ILLINOIS, DEPT CIVIL ENGN, URBANA, IL 61801 USA. RI Ruggieri, Claudio/D-1298-2014 OI Ruggieri, Claudio/0000-0003-0600-3424 NR 47 TC 107 Z9 108 U1 1 U2 8 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0376-9429 EI 1573-2673 J9 INT J FRACTURE JI Int. J. Fract. PY 1996 VL 82 IS 1 BP 67 EP 95 PG 29 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA WV524 UT WOS:A1996WV52400005 ER PT J AU Panontin, TL Hill, MR AF Panontin, T. L. Hill, M. R. TI The effect of residual stresses on brittle and ductile fracture initiation predicted by micromechanical models SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article DE residual stress; fracture initiation; micromechanics AB . The effect of a realistic residual stress field on the predicted initiation of brittle and ductile fracture in a pressure and axially loaded circumferentially cracked pipe is examined using finite element analysis, micromechanical models of fracture initiation, and J-Q theory. The study confirms that residual stresses contribute to the driving force and reduce fracture loads early in the loading history. In addition, results show that the residual stresses severely alter the J-value (i.e., fracture toughness) predicted for the onset of brittle fracture. The reason for this decrease is found to be the increase in constraint generated by the residual stress field. In contrast, the effect of residual stresses on the ductile fracture initiation toughness is shown to be negligible. C1 NASA, Ames Res Ctr, Mat & Failure Anal Grp, Moffett Field, CA 94035 USA. Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA. RP Panontin, TL (reprint author), NASA, Ames Res Ctr, Mat & Failure Anal Grp, Moffett Field, CA 94035 USA. RI Hill, Michael/A-2525-2016 OI Hill, Michael/0000-0002-9168-211X NR 22 TC 37 Z9 38 U1 0 U2 7 PU SPRINGER PI DORDRECHT PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS SN 0376-9429 J9 INT J FRACTURE JI Int. J. Fract. PY 1996 VL 82 IS 4 BP 317 EP 333 DI 10.1007/BF00013236 PG 17 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA V43OV UT WOS:000202945300002 ER PT J AU Newman, JC AF Newman, JC TI Application of a closure model to predict crack growth in three engine disc materials SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article ID FATIGUE AB This paper describes the crack-growth predictions made in an AGARD Structures and Materials Panel, Engine Disc Cooperative Programme [1, 2] using the life-prediction code FASTRAN II. The objective of the program was to compare various methods of modeling crack-growth behavior in engine disc materials. The experimental database included three titanium alloys (Ti-6Al-4V, IMI-685 and Ti-17) and two crack configurations (compact and corner-crack tension). Crack-growth-rate data were provided under constant-amplitude loading (R = 0.1 and 0.7) and under a repeated spike overload sequence. Participants were to use these data and mechanical properties of the materials to determine the crack-growth-rate properties to be used in their analysis method. The crack-growth properties were then used to predict the number of cycles required to grow a crack from an initial size to a final size under three simple variable-amplitude load sequences and under four complex Turbistan sequences. Predicted results from FASTRAN II agreed well with the test data with an overall mean of 1.01 and standard deviation of 0.31 for all materials and loading conditions. RP Newman, JC (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 19 TC 9 Z9 9 U1 1 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0376-9429 J9 INT J FRACTURE JI Int. J. Fract. PY 1996 VL 80 IS 2-3 BP 193 EP 218 PG 26 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA WC968 UT WOS:A1996WC96800006 ER PT J AU Piascik, RS Newman, JC AF Piascik, RS Newman, JC TI An extended compact tension specimen for fatigue crack growth and fracture testing SO INTERNATIONAL JOURNAL OF FRACTURE LA English DT Article RP Piascik, RS (reprint author), NASA,LANGLEY RES CTR,MECH MAT BRANCH,MS 188E,HAMPTON,VA 23681, USA. NR 3 TC 4 Z9 4 U1 1 U2 1 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0376-9429 J9 INT J FRACTURE JI Int. J. Fract. PY 1996 VL 76 IS 3 BP R43 EP R48 DI 10.1007/BF00048293 PG 6 WC Materials Science, Multidisciplinary; Mechanics SC Materials Science; Mechanics GA UZ448 UT WOS:A1996UZ44800007 ER EF