FN Thomson Reuters Web of Science™ VR 1.0 PT J AU LEE, AY TSUHA, WS AF LEE, AY TSUHA, WS TI MODEL-REDUCTION METHODOLOGY FOR ARTICULATED, MULTIFLEXIBLE BODY STRUCTURES SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID COMPONENT AB Multibody dynamics simulation packages such as DISCOS are commonly used to simulate and analyze systems of interconnected rigid or flexible bodies. In many applications using these codes, the flexible components must be described in a way that when they are assembled, important system-level modes are accurately captured. The projection and assembly model reduction method, developed at the Jet Propulsion Laboratory, serves this purpose very well. However, early application of the method on the Galileo spacecraft model indicated mismatches in transfer function zeros between the full-order model and a reduced-order model constructed using the projection and assembly method. in this paper, an enhanced projection and assembly method, employing static correction modes to augment either the selected mode set of the system or the projected mode sets of the components is presented. The effectiveness of the proposed methodology in generating reduced-order system models, accurate at multiple system configurations and over a frequency range of interest, has been successfully demonstrated on a high-order finite element model of the Galileo spacecraft. C1 CALTECH,JET PROP LAB,APPL TECHNOL SECT,PASADENA,CA 91109. RP LEE, AY (reprint author), CALTECH,JET PROP LAB,GUIDANCE & CONTROL SECT,MS 198-326,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 12 TC 6 Z9 9 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JAN-FEB PY 1994 VL 17 IS 1 BP 69 EP 75 DI 10.2514/3.21160 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA MT282 UT WOS:A1994MT28200009 ER PT J AU JUANG, JN PHAN, M AF JUANG, JN PHAN, M TI IDENTIFICATION OF SYSTEM, OBSERVER, AND CONTROLLER FROM CLOSED-LOOP EXPERIMENTAL-DATA SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article AB This paper considers the identification problem of a system operating in a closed loop with an existing feedback controller. The closed-loop system is excited by a known excitation signal, and the resulting time histories of the closed-loop system response and the feedback signal are measured. From the time history data, the algorithm computes the Markov parameters of a closed loop observer, from which the Markov parameters of the individual open-loop plant, observer, and controller are recovered. A state-space model of the open-loop plant and the gain matrices for the controller and the observer are then realized. The results of the paper are demonstrated by an example using wind tunnel aircraft flutter test data. RP JUANG, JN (reprint author), NASA,LANGLEY RES CTR,SPACECRAFT DYNAM BRANCH,MS 297,HAMPTON,VA 23681, USA. NR 12 TC 14 Z9 14 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JAN-FEB PY 1994 VL 17 IS 1 BP 91 EP 96 DI 10.2514/3.21163 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA MT282 UT WOS:A1994MT28200012 ER PT J AU BELVIN, WK AF BELVIN, WK TI 2ND-ORDER STATE ESTIMATION EXPERIMENTS USING ACCELERATION MEASUREMENTS SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID VIBRATION ABSORBER; LQG REGULATORS; DESIGN AB The estimation of dynamic states for feedback control of structural systems using second-order differential equations and acceleration measurements is described. The formulation of the observer model and the design of the observer gains are discussed in detail. It is shown that the second-order observer is highly stable because the stability constraints on the observer gains are model independent. The limitation of the proposed observer is the need for ''nearly'' collocated actuators and accelerometers. Experimental results using a control-structure interaction testbed are presented that show that the second-order observer provided more stability than a Kalman filter estimator without decreasing closed-loop performance. RP BELVIN, WK (reprint author), NASA,LANGLEY RES CTR,DIV STRUCT DYNAM,HAMPTON,VA 23665, USA. NR 18 TC 1 Z9 1 U1 1 U2 3 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JAN-FEB PY 1994 VL 17 IS 1 BP 97 EP 103 DI 10.2514/3.21164 PG 7 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA MT282 UT WOS:A1994MT28200013 ER PT J AU DUYAR, A ELDEM, V MERRILL, W GUO, TH AF DUYAR, A ELDEM, V MERRILL, W GUO, TH TI FAULT-DETECTION AND DIAGNOSIS IN PROPULSION SYSTEMS - A FAULT PARAMETER-ESTIMATION APPROACH SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Article ID DYNAMIC-SYSTEMS AB The paper presents the development of a fault detection and diagnosis (FDD) system with applications to the Space Shuttle main engine. The FDD utilizes a model-based method with real-time identification and hypothesis testing for actuation, sensor, and performance degradation faults. C1 MARMARA SCI & IND RES INST,DIV APPL MATH,GEBZE,TURKEY. NASA,LEWIS RES CTR,ADV CONTROL TECHNOL BRANCH,CLEVELAND,OH 44135. RP DUYAR, A (reprint author), FLORIDA ATLANTIC UNIV,DEPT MECH ENGN,BOCA RATON,FL 33431, USA. NR 14 TC 16 Z9 16 U1 1 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JAN-FEB PY 1994 VL 17 IS 1 BP 104 EP 108 DI 10.2514/3.21165 PG 5 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA MT282 UT WOS:A1994MT28200014 ER PT J AU PAIELLI, RA AF PAIELLI, RA TI COMMENT ON GLOBAL TRANSFORMATION OF ROTATION MATRICES TO EULER PARAMETERS - REPLY SO JOURNAL OF GUIDANCE CONTROL AND DYNAMICS LA English DT Note RP PAIELLI, RA (reprint author), NASA,AMES RES CTR,DIV FLIGHT SYST & SIMULAT RES,MOFFETT FIELD,CA 94035, USA. NR 1 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0731-5090 J9 J GUID CONTROL DYNAM JI J. Guid. Control Dyn. PD JAN-FEB PY 1994 VL 17 IS 1 BP 223 EP 223 DI 10.2514/3.56629 PG 1 WC Engineering, Aerospace; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA MT282 UT WOS:A1994MT28200036 ER PT J AU KYRIAKOPOULOS, KJ SARIDIS, GN AF KYRIAKOPOULOS, KJ SARIDIS, GN TI OPTIMAL AND SUBOPTIMAL MOTION PLANNING FOR COLLISION-AVOIDANCE OF MOBILE ROBOTS IN NONSTATIONARY ENVIRONMENTS SO JOURNAL OF INTELLIGENT & ROBOTIC SYSTEMS LA English DT Article DE MOBILE ROBOTS; MOTION PLANNING; COLLISION AVOIDANCE; MOVING OBSTACLES AB An optimal control formulation of the problem of collision avoidance of mobile robots moving in terrains containing moving obstacles is presented. A dynamic model of the mobile robot and the dynamic constraints are derived. Collision avoidance is guaranteed if the minimum distance between the robot and the objects is nonzero. A nominal trajectory is assumed to be known from off-line planning. The main idea is to change the velocity along the nominal trajectory so that collisions are avoided. Furthermore, time consistency with the nominal plan is desirable. Two solutions are obtained: (1) A numerical solution of the optimization problem and a perturbation type of control to update the optimal plan and (2) A computationally efficient method giving near optimal solutions. Simulation results verify the value of the proposed strategies and allow for comparisons. C1 RENSSELAER POLYTECH INST,NASA,CTR INTELLIGENT ROBOT SYST SPACE EXPLORAT,TROY,NY 12180. RP KYRIAKOPOULOS, KJ (reprint author), RENSSELAER POLYTECH INST,NEW YORK STATE CTR ADV TECHNOL AUTOMAT & ROBOT,TROY,NY 12180, USA. NR 22 TC 0 Z9 0 U1 2 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA SPUIBOULEVARD 50, PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0921-0296 J9 J INTELL ROBOT SYST JI J. Intell. Robot. Syst. PY 1994 VL 11 IS 3 BP 223 EP 267 DI 10.1007/BF01254013 PG 45 WC Computer Science, Artificial Intelligence; Robotics SC Computer Science; Robotics GA RA993 UT WOS:A1994RA99300002 ER PT J AU JONES, WR AF JONES, WR TI PROPERTIES OF PERFLUOROPOLYETHER SPACE LUBRICANTS SO JOURNAL OF JAPANESE SOCIETY OF TRIBOLOGISTS LA Japanese DT Article ID PERFLUOROPOLYALKYLETHER OIL; TEMPERATURES; STEEL; FEF3 RP JONES, WR (reprint author), NASA,LEWIS RES CTR,21000 BROOKPARK RD,CLEVELAND,OH 44135, USA. NR 20 TC 1 Z9 1 U1 0 U2 0 PU JAPAN SOC TRIBOLOGISTS PI TOKYO PA KIKAI SHINKO KAIKAN NO 407-2 5-8 SHIBA-KOEN 3-CHOME MINATO-KU, TOKYO 105, JAPAN SN 0915-1168 J9 J JPN SOC TRIBOLOGIS JI J. Jpn. Soc. Tribol. PY 1994 VL 39 IS 9 BP 752 EP 755 PG 4 WC Engineering, Mechanical SC Engineering GA PN091 UT WOS:A1994PN09100002 ER PT J AU HERGENROTHER, PM AF HERGENROTHER, PM TI RECENT DEVELOPMENTS IN POLY(ARYLENE ETHER)S CONTAINING HETEROCYCLIC UNITS SO JOURNAL OF MACROMOLECULAR SCIENCE-PURE AND APPLIED CHEMISTRY LA English DT Article; Proceedings Paper CT Macromolecules 92 - 3rd Euro-American Conference on Functional Polymers and Biopolymers CY SEP 07-11, 1992 CL UNIV KENT, CANTERBURY, ENGLAND SP BRIT RSC SCI MACRO GRP UK, AMER CHEM SOC, POLYM CHEM HO UNIV KENT RP HERGENROTHER, PM (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 20 TC 0 Z9 0 U1 0 U2 0 PU MARCEL DEKKER INC PI NEW YORK PA 270 MADISON AVE, NEW YORK, NY 10016 SN 1060-1325 J9 J MACROMOL SCI PURE JI J. Macromol. Sci.-Pure Appl. Chem. PY 1994 VL A31 SU 6-7 BP 731 EP 738 PG 8 WC Polymer Science SC Polymer Science GA PQ890 UT WOS:A1994PQ89000008 ER PT J AU BANSAL, NP DRUMMOND, CH AF BANSAL, NP DRUMMOND, CH TI EFFECT OF ISOSTATIC PRESSING ON PHASE-FORMATION IN BAO.AL2O3.2SIO2 GLASS SO JOURNAL OF MATERIALS SCIENCE LETTERS LA English DT Article C1 OHIO STATE UNIV,DEPT MAT SCI & ENGN,COLUMBUS,OH 43210. RP BANSAL, NP (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 12 TC 4 Z9 5 U1 0 U2 1 PU CHAPMAN HALL LTD PI LONDON PA 2-6 BOUNDARY ROW, LONDON, ENGLAND SE1 8HN SN 0261-8028 J9 J MATER SCI LETT JI J. Mater. Sci. Lett. PD JAN 1 PY 1994 VL 13 IS 1 BP 53 EP 55 DI 10.1007/BF02352918 PG 3 WC Materials Science, Multidisciplinary SC Materials Science GA MR060 UT WOS:A1994MR06000018 ER PT J AU MISHRA, SK SEGAL, E GUNTER, E KURUP, VP MISHRA, J MURALI, PS PIERSON, DL SANDOVSKYLOSICA, H STEVENS, DA AF MISHRA, SK SEGAL, E GUNTER, E KURUP, VP MISHRA, J MURALI, PS PIERSON, DL SANDOVSKYLOSICA, H STEVENS, DA TI STRESS, IMMUNITY AND MYCOTIC DISEASES SO JOURNAL OF MEDICAL AND VETERINARY MYCOLOGY LA English DT Article; Proceedings Paper CT XII Congress of the International-Society-for-Human-and-Animal-Mycology (ISHAM) CY MAR 13-18, 1994 CL ADELAIDE, AUSTRALIA ID KILLER-CELL-ACTIVITY; ALLERGIC BRONCHOPULMONARY ASPERGILLOSIS; FUNGUS PARACOCCIDIOIDES-BRASILIENSIS; MURINE GASTROINTESTINAL MUCOSA; ENZYME-LINKED IMMUNOSORBENT; ESTRADIOL-BINDING PROTEINS; INTRAVENOUS DRUG-ABUSERS; CENTRAL NERVOUS-SYSTEM; CANDIDA-ALBICANS; PROGESTERONE-BINDING C1 TEL AVIV UNIV, SACKLER SCH MED, DEPT HUMAN MICROBIOL, IL-69978 TEL AVIV, ISRAEL. SANTA CLARA VALLEY MED CTR, SAN JOSE, CA 95128 USA. STANFORD UNIV, SCH MED, SAN JOSE, CA USA. RP KRUG LIFE SCI INC, NASA, JOHNSON SPACE CTR, BIOMED OPERAT & RES BRANCH, MAIL CODE SD4, HOUSTON, TX 77058 USA. NR 128 TC 13 Z9 14 U1 2 U2 4 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 0268-1218 J9 J MED VET MYCOL JI J. Med. Vet. Mycol. PY 1994 VL 32 SU 1 BP 379 EP 406 PG 28 WC Mycology SC Mycology GA QB967 UT WOS:A1994QB96700032 PM 7722800 ER PT J AU ZELEZNIK, FJ AF ZELEZNIK, FJ TI THERMODYNAMIC PROPERTIES OF THE AQUEOUS SULFURIC-ACID SYSTEM TO 350-5 (VOL 20, PG 1157, 1991) SO JOURNAL OF PHYSICAL AND CHEMICAL REFERENCE DATA LA English DT Correction, Addition RP ZELEZNIK, FJ (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 0 TC 1 Z9 1 U1 0 U2 3 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 16TH ST, NW, WASHINGTON, DC 20036 SN 0047-2689 J9 J PHYS CHEM REF DATA JI J. Phys. Chem. Ref. Data PD JAN-FEB PY 1994 VL 23 IS 1 BP 155 EP 155 PG 1 WC Chemistry, Multidisciplinary; Chemistry, Physical; Physics, Multidisciplinary SC Chemistry; Physics GA ND810 UT WOS:A1994ND81000006 ER PT J AU CHINITZ, W ERDOS, JI RIZKALLA, O ANDERSON, GY BUSHNELL, DM AF CHINITZ, W ERDOS, JI RIZKALLA, O ANDERSON, GY BUSHNELL, DM TI FACILITY OPPORTUNITIES AND ASSOCIATED STREAM CHEMISTRY CONSIDERATIONS FOR HYPERSONIC AIR-BREATHING PROPULSION SO JOURNAL OF PROPULSION AND POWER LA English DT Article C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP CHINITZ, W (reprint author), GEN APPL SCI LABS INC,RONKONKOMA,NY 11779, USA. NR 35 TC 11 Z9 11 U1 1 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 6 EP 17 DI 10.2514/3.23705 PG 12 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200002 ER PT J AU SOVEY, JS VETRONE, RH GRISNIK, SP MYERS, RM PARKES, JE AF SOVEY, JS VETRONE, RH GRISNIK, SP MYERS, RM PARKES, JE TI TEST FACILITIES FOR HIGH-POWER ELECTRIC PROPULSION SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Facility requirements for testing high-power electric propulsion at the component and thrust systems level are presented. The characteristics and pumping capabilities of many large vacuum chambers in the U.S. are reviewed and compared with requirements for kilowatt- to megawatt-class electric propulsion testing. C1 SVERDRUP TECHNOL INC,BROOKPARK,OH 44142. RP SOVEY, JS (reprint author), NASA,LEWIS RES CTR,DIV SPACE PROPULS TECHNOL,CLEVELAND,OH 44135, USA. NR 41 TC 4 Z9 5 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 18 EP 24 DI 10.2514/3.23706 PG 7 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200003 ER PT J AU KIM, SC STUBBS, RM AF KIM, SC STUBBS, RM TI NUMERICAL STUDY OF LOW-PRESSURE CONCEPT FOR NUCLEAR THERMAL ROCKETS SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB The flowfields and performance of low-pressure nuclear thermal rockets, which utilize nuclear fission energy and use hydrogen as a propellant, are studied by solving the Navier-Stokes equations and the species equations. A finite-rate chemistry model is used in the species equations and the turbulence is simulated by the modified Baldwin-Lomax turbulence model. The thrust level of the rocket for the present study is about 5000 lbf, and the length and exit radius of the nozzles are fixed to be 5.0 and 1.3 m, respectively. As the chamber pressure is varied, the throat areas of the various nozzles are adjusted accordingly to maintain approximately the same thrust level. The area ratio of the nozzle ranges from 4 for the chamber pressure of 0.1 atm to 240 for the chamber pressure of 6 atm. The calculated results for the chamber temperatures of 3200 and 4000 K with a chamber pressure range of 0.1-6 atm are presented as Mach number and static temperature contours, centerline variations of Mach number and static temperature, and exit profiles of Mach number and axial velocity. The vacuum specific impulse and thrust from the present calculations are compared with those from the one-dimensional, inviscid equilibrium and frozen flow code. C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP KIM, SC (reprint author), SVERDRUP TECHNOL INC,BROOKPARK,OH 44142, USA. NR 16 TC 0 Z9 0 U1 0 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 25 EP 31 DI 10.2514/3.23707 PG 7 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200004 ER PT J AU REICHERT, BA HINGST, WR OKIISHI, TH AF REICHERT, BA HINGST, WR OKIISHI, TH TI CIRCULAR-TO-RECTANGULAR TRANSITION DUCT FLOW WITHOUT AND WITH INLET SWIRL SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB Circular-to-rectangular transition ducts are used as exhaust system components of aircraft with rectangular exhaust nozzles. Often, the flow into these ducts includes a swirling velocity component remaining from the gas turbine engine. Previous transition duct studies involving detailed experimental measurements have not compared the flowfield without and with inlet swirl. The study reported in this article explored circular-to-rectangular transition duct flows without and with inlet swirl in order to document the effect of inlet swirl on the transition duct flowfield and to provide detailed duct flow data for comparison with numerical code predictions. A method was devised to develop a swirling, solid-body rotational flow with minimal associated disturbances. Coefficients based on velocities and total and static pressures measured in cross-stream planes at four axial locations within the transition duct, along with surface static pressure measurements and surface oil-film visualization, are presented and discussed for both nonswirling and swirling incoming flows. In both cases the inlet centerline Mach number was 0.35. The differences between flowfields for the two cases were striking. Two pairs of counter-rotating side-wall vortices appeared in the duct, flow without inlet swirl. These vortices were absent in the swirling incoming now case. C1 IOWA STATE UNIV SCI & TECHNOL,DEPT MECH ENGN,AMES,IA 50011. RP REICHERT, BA (reprint author), NASA,LEWIS RES CTR,CLEVELAND,OH 44135, USA. NR 16 TC 2 Z9 2 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 88 EP 94 DI 10.2514/3.23715 PG 7 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200012 ER PT J AU PAO, SP CARLSON, JR ABDOLHAMID, KS AF PAO, SP CARLSON, JR ABDOLHAMID, KS TI COMPUTATIONAL INVESTIGATION OF CIRCULAR-TO-RECTANGULAR TRANSITION DUCTS SO JOURNAL OF PROPULSION AND POWER LA English DT Article AB The objective of this article is to demonstrate the feasibility of conducting three-dimensional Navier-Stokes calculations for a family of three short circular-to-rectangular transition ducts, and to establish quantitative measures of accuracy for duct design applications. A three-dimensional multiblock Navier-Stokes code, PAB3D, was used in this study. The transition ducts were designed to connect a typical circular engine exhaust to a high aspect ratio rectangular supersonic nozzle. The transitional cross sections were represented by superellipses. The rectangular supersonic nozzle was included in the flow path for the numerical analysis such that the computed results can be directly compared to existing experimental results for these ducts. Internal flow solutions were computed by using both laminar viscosity and a low Reynolds number two-equation k-epsilon turbulence modeling. Static pressure coefficient distributions, discharge coefficient, and thrust ratio quantities were calculated according to the on-design operating conditions for the nozzle. Good agreement between predicted surface static pressures and experimental data was observed. Nozzle performance was predicted to within experimental accuracy for both the laminar and the k-epsilon solutions. C1 ANALYT SERV & MAT INC,HAMPTON,VA 23605. RP PAO, SP (reprint author), NASA,LANGLEY RES CTR,DIV APPL AERODYNAM,PROPULS AERODYNAM BRANCH,HAMPTON,VA 23665, USA. NR 15 TC 2 Z9 5 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 95 EP 100 DI 10.2514/3.23716 PG 6 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200013 ER PT J AU ASBURY, SC CAPONE, FJ AF ASBURY, SC CAPONE, FJ TI HIGH-ALPHA VECTORING CHARACTERISTICS OF THE F-18/HARV SO JOURNAL OF PROPULSION AND POWER LA English DT Article; Proceedings Paper CT AIAA/SAE/ASME/ASEE 28th Joint Propulsion Conference CY JUL 06-08, 1992 CL NASHVILLE, TN SP AMER INST AERONAUT & ASTRONAUT, SAE, ASME, ASEE AB An investigation was conducted in the Langley 16-Foot Transonic Tunnel (16FTT) to determine the multiaxis thrust vectoring characteristics of the F-18 high-alpha research vehicle (HARV). A 0.10-scale model of the F-18 airplane was modified with hardware to simulate the three-vane thrust vectoring system of the F-18/HARV. This investigation was conducted at Mach numbers ranging from 0.30 to 0.70, angles of attack from 0 to 70 deg, and nozzle pressure ratios from 2.0 to approximately 5.0. Results indicate that the thrust vectoring system of the F-18/HARV can generate useful levels of multiaxis thrust vectoring. During vectoring, resultant thrust vector angles were always less than the corresponding geometric vane deflection angle and were accompanied by large thrust losses. Significant external flow effects that were dependent on Mach number and angle of attack were noted during vectoring. RP ASBURY, SC (reprint author), NASA,LANGLEY RES CTR,DIV APPL AERODYNAM,PROPULS AERODYNAM BRANCH,HAMPTON,VA 23681, USA. NR 12 TC 4 Z9 4 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 116 EP 121 DI 10.2514/3.23719 PG 6 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200016 ER PT J AU MCARDLE, JG ESKER, BS RHODES, JA AF MCARDLE, JG ESKER, BS RHODES, JA TI INTERNAL REVERSING FLOW IN A TAILPIPE OFFTAKE CONFIGURATION FOR ASTOVL AIRCRAFT SO JOURNAL OF PROPULSION AND POWER LA English DT Article; Proceedings Paper CT AIAA/SAE/ASME/ASEE 28th Joint Propulsion Conference CY JUL 06-08, 1992 CL NASHVILLE, TN SP AMER INST AERONAUT & ASTRONAUT, SAE, ASME, ASEE AB A generic one-third scale model of a tailpipe offtake system for an advanced short takeoff vertical landing (ASTOVL) aircraft was tested with unheated air at tailpipe-to-ambient pressure ratios up to 5. The model consisted of a tailpipe with twin elbows, offtake ducts, and offtake flow control nozzles, plus a small ventral nozzle and a blind flange to simulate a blocked cruise nozzle. The offtake duct-to-tailpipe diameter ratio was 0.74. The offtake openings in the tailpipe had sharp edges. The offtake flow turned through a total angle of 177 deg relative to the tailpipe inlet axis. The flow split was 45% to each offtake and 10% to the ventral nozzle. The total pressure loss through the offtakes was as high as 15.5%. All test results are shown as graphs, contour plots, and wall pressure distributions. The complex flow patterns in the tailpipe and elbows at the offtake openings are described with traversing flow angle probe and paint streak flow visualization data. A computational fluid dynamics (CFD) analysis of the same configuration was made. Comparison of the experimental and preliminary CFD results were reported previously. C1 MCDONNELL DOUGLAS AEROSP CO,DEPT PROPULS & THERMODYNAM,ST LOUIS,MO 63166. RP MCARDLE, JG (reprint author), NASA,LEWIS RES CTR,DIV PROPULS SYST,HYPERSON & ENGINE INTEGRAT BRANCH,CLEVELAND,OH 44135, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0748-4658 J9 J PROPUL POWER JI J. Propul. Power PD JAN-FEB PY 1994 VL 10 IS 1 BP 122 EP 128 DI 10.2514/3.23720 PG 7 WC Engineering, Aerospace SC Engineering GA MR342 UT WOS:A1994MR34200017 ER PT J AU ATKINSON, S BECKER, BL JOHANOS, TC PIETRASZEK, JR KUHN, BCS AF ATKINSON, S BECKER, BL JOHANOS, TC PIETRASZEK, JR KUHN, BCS TI REPRODUCTIVE MORPHOLOGY AND STATUS OF FEMALE HAWAIIAN MONK SEALS (MONACHUS-SCHAUINSLANDI) FATALLY INJURED BY ADULT MALE SEALS SO JOURNAL OF REPRODUCTION AND FERTILITY LA English DT Article AB Female Hawaiian monk seals at Laysan Island in the Northwestern Hawaiian Islands seasonally risk aggressive mating attempts by groups of adult male monk seals. These attacks, which also target immature female and male seals at a lower frequency, result in injuries that are often fatal and are termed mobbings. This study was undertaken to assess the reproductive status of nine female seals that died after mobbing attacks and to obtain basic morphological data of reproductive tracts from ten females. Reproductive morphology of the seals indicated that the lengths of the uterine body and both uterine hems were significantly shorter in nulliparous than in parous seals. Seven of the nine seals were periovulatory, on the basis of gross morphology of the ovaries at death. The ovaries of the other two seals possessed immature follicles. Histological studies of the vagina and uterus confirmed the reproductive status of the seals. When the reproductive status at the time of first injury was estimated, all seals were in the follicular phase of the oestrous cycle. At least four of these seals were estimated to be in oestrus at the time of their first injury, and seven of the seals sustained at least one injury during the estimated period of oestrus (2-6 days). These results support the hypothesis that most adult female Hawaiian monk seals that die following an attack by male monk seals are periovulatory, and that the majority of the attacks occur during oestrus. C1 NOAA,NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,HONOLULU LAB,HONOLULU,HI 96822. RP ATKINSON, S (reprint author), UNIV HAWAII,HAWAII INST MARINE BIOL,MSB 213,HONOLULU,HI 96822, USA. NR 18 TC 15 Z9 16 U1 1 U2 9 PU J REPROD FERTIL INC PI CAMBRIDGE PA 22 NEWMARKET RD, CAMBRIDGE, ENGLAND CB5 8DT SN 0022-4251 J9 J REPROD FERTIL JI J. Reprod. Fertil. PD JAN PY 1994 VL 100 IS 1 BP 225 EP 230 PG 6 WC Reproductive Biology SC Reproductive Biology GA NE614 UT WOS:A1994NE61400032 PM 8182594 ER PT J AU LEE, HH CULICK, FEC AF LEE, HH CULICK, FEC TI DESIGN OF A ROBUST ADAPTIVE-CONTROL LAW FOR ROBOTIC MANIPULATORS SO JOURNAL OF ROBOTIC SYSTEMS LA English DT Article ID BOUNDED DISTURBANCES; SYSTEMS; ERROR AB In this article, a robust adaptive control scheme for robotic manipulators is designed based on the concept of performance index and Lyapunov's second method. Compensators are selected for a given feedback system by using a quadratic performance index. Then the stability of the system is proven based on Lyapunov's method, where a Lyapunov function and its time-derivative are derived from the selected compensators. In the process of stabilization, stability bounds are obtained for disturbances, control gains, adaptation gains, and desired trajectories, in the presence of feedback delay due to digital computation and first-order hold in the control loop. (C) 1994 John Wiley & Sons, Inc. C1 JET PROP LAB,PASADENA,CA 91109. RES INST IND SCI & TECHNOL,DEPT CONTROL,POHANG 790600,SOUTH KOREA. NR 46 TC 3 Z9 3 U1 0 U2 1 PU JOHN WILEY & SONS INC PI NEW YORK PA 605 THIRD AVE, NEW YORK, NY 10158-0012 SN 0741-2223 J9 J ROBOTIC SYST JI J. Robot. Syst. PY 1994 VL 11 IS 4 BP 241 EP 255 DI 10.1002/rob.4620110402 PG 15 WC Robotics SC Robotics GA NL964 UT WOS:A1994NL96400001 ER PT J AU ZOBY, V AF ZOBY, V TI OUR SUCCESSFUL EXPERIMENTS SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Editorial Material RP ZOBY, V (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 1 EP 1 DI 10.2514/3.55665 PG 1 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000001 ER PT J AU KLEB, WL WEILMUENSTER, KJ AF KLEB, WL WEILMUENSTER, KJ TI CHARACTERISTICS OF THE SHUTTLE ORBITER LEESIDE FLOW DURING A REENTRY CONDITION SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID SCHEMES AB A study of the leeside now characteristics of the Shuttle Orbiter is presented for a re-entry night condition. The flow is computed using a point-implicit, finite-volume scheme known as the Langley aerothermodynamic upwind relaxation algorithm (LAURA). LAURA is a second-order-accurate, laminar Navier-Stokes solver incorporating finite-rate chemistry with a radiative equilibrium wall temperature distribution and finite-rate wall catalysis. The computational results are compared with measured inflight surface pressure and surface heating from several Shuttle Orbiter nights. In addition, a leeside surface temperature distribution is compared with a surface temperature distribution derived from the Shuttle infrared leeside temperature sensing (SILTS) flight experiment. RP KLEB, WL (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,AEROTHERMODYNAM BRANCH,HAMPTON,VA 23681, USA. NR 41 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 8 EP 16 DI 10.2514/3.26396 PG 9 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000002 ER PT J AU HAAS, BL FEIEREISEN, WJ AF HAAS, BL FEIEREISEN, WJ TI PARTICLE SIMULATION OF RAREFIED AEROPASS MANEUVERS OF THE MAGELLAN SPACECRAFT SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID COLLISION AB Rarefied and free molecular flowfields corresponding to proposed aeropass maneuvers through the atmosphere of Venus by the Magellan spacecraft are computed with a vectorized particle simulation method. The significance of now rarefaction, surface recombination, grid resolution, and simulation domain is assessed, and surface heat flux, drag, and flowfield properties are computed. A simple surface heat transfer model is coupled directly to the simulation and assumes that each surface element is in radiative equilibrium with deep space. This allows direct computation of surface temperature distributions rather than requiring prescribed isothermal estimates employed in previous particle methods. Uncoupled dual-node heat transfer models, which account for heat capacity and thermal conductivity within each structural component, permit more accurate determination of surface temperatures. Such temperatures restrict the allowable altitudes and entry speeds of the aeropass maneuvers and may influence vehicle aerodynamics and heating in rarefied flows. Simulations with an entry velocity of 8600 m/s at altitudes between 125 and 140 km reveal that allowable surface temperatures occur only at the highest altitudes where the flowfield is nearly free molecular. Excessive surface heat nux occurs at lower altitudes where molecular collisions are significant. Simulations employing insufficient upstream domain length overpredicted heating and drag. C1 ELORET INST,PALO ALTO,CA 94303. RP HAAS, BL (reprint author), NASA,AMES RES CTR,M-S 230-2,MOFFETT FIELD,CA 94035, USA. NR 18 TC 4 Z9 4 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 17 EP 24 DI 10.2514/3.26397 PG 8 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000003 ER PT J AU CARLSON, AB WILMOTH, RG AF CARLSON, AB WILMOTH, RG TI MONTE-CARLO SIMULATION OF A NEAR-CONTINUUM SHOCK-SHOCK INTERACTION PROBLEM SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB A complex shock interaction is calculated with direct simulation Monte Carlo. The calculation is performed for the type IV shock-interaction pattern produced when an incident shock impinges on the bow shock of a 0.1-in.-radius cowl lip for freestream conditions of Mach 15 and approximately 35-km altitude. Solutions are presented for a case without chemical reactions and for a full finite-rate chemistry calculation. In each case, both undisturbed flow about the cowl lip and the full shock-interaction flowfields are calculated. The differences in calculated surface properties relative to the cases with and without chemical reactions demonstrate the necessity of properly modeling the flowfield chemistry when using the analysis to predict design requirements. Preliminary grid-sensitivity studies indicate that the heat transfer predictions are conservative. RP CARLSON, AB (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,AEROTHERMODYNAM BRANCH,HAMPTON,VA 23681, USA. NR 6 TC 6 Z9 6 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 25 EP 30 DI 10.2514/3.26398 PG 6 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000004 ER PT J AU WILHITE, AW ENGELUND, WC STANLEY, DO NAFTEL, JC LEPSCH, RA BUSH, LB WURSTER, KE AF WILHITE, AW ENGELUND, WC STANLEY, DO NAFTEL, JC LEPSCH, RA BUSH, LB WURSTER, KE TI TECHNOLOGY AND STAGING EFFECTS ON 2-STAGE-TO-ORBIT SYSTEMS SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article AB Horizontal takeoff and landing two-stage systems with an airbreathing first stage and rocket second stage are evaluated for staging Mach numbers that range from 5 to 14. With advanced technologies, the two-stage systems are heavier than the single stage. Using a rocket on the first stage to accelerate from the turboramjet limit of Mach 6-Mach 10 significantly decreases dry weight as compared to the Mach 6 staged system. The optimum dry weight staging Mach number for the scramjet two-stage system is Mach 12. With current technology, the scramjet two-stage systems are half the weight of the single stage, but still require substantial technology development in the areas of inlets, nozzles, ramjet propulsion, active cooling, and high-temperature structures. RP WILHITE, AW (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,MAIL STOP 365,HAMPTON,VA 23681, USA. NR 16 TC 2 Z9 2 U1 1 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 31 EP 38 DI 10.2514/3.26399 PG 8 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000005 ER PT J AU VAUGHN, JA CARRUTH, MR KATZ, I MANDELL, MJ JONGEWARD, GA AF VAUGHN, JA CARRUTH, MR KATZ, I MANDELL, MJ JONGEWARD, GA TI ELECTRICAL BREAKDOWN CURRENTS ON LARGE SPACECRAFT IN LOW-EARTH-ORBIT SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID VACUUM AB An experimental and theoretical investigation of an expanding plasma generated by an arc produced by biasing a conductor underneath a thin layer of anodized aluminum 160-V negative of a laboratory plasma that can produce large peak arc currents by discharging large surface areas is presented. A simple theory shows that the time scales and observed current magnitudes are consistent with the expansion of a discharge-generated plasma. The implication for large spacecraft in low Earth orbit, such as Space Station Freedom (SSF) which can store large amounts of charge, is that ares with the same amount of energy similar to those observed in the laboratory may occur. The energy in these arcs degrade the surface of the anodized aluminum thermal control coatings by producing large pits in the surface. These pits tend to increase the temperature of the spacecraft, and the material from the pits can become an additional source of contamination. The rise time and intensity of theses arc could produce significant EMI. To prevent the occurrence of these undesirable effects, SSF will utilize a plasma contactor that will control the structure to ambient plasma potentials. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE PHYS GRP,DIV S CUBED,HUNTSVILLE,AL 35812. RP VAUGHN, JA (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SYST SECTOR,DIV S CUBED,HUNTSVILLE,AL 35812, USA. NR 16 TC 18 Z9 18 U1 1 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 54 EP 59 DI 10.2514/3.26402 PG 6 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000008 ER PT J AU MARSHALL, JA LUTHCKE, SB AF MARSHALL, JA LUTHCKE, SB TI MODELING RADIATION FORCES ACTING ON TOPEX POSEIDON FOR PRECISION ORBIT DETERMINATION SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Article ID LAGEOS; EARTH AB Geodetic satellites, such as GEOSAT, SPOT, ERS-1, and TOPEX/Poseidon require accurate orbital computations to support the scientific data they collect. The TOPEX/Poseidon mission requirements dictate that the mismodeling of the nonconservative forces of solar radiation, Earth albedo and infrared reradiation, and spacecraft thermal imbalances produce in combination no more than a 6-cm radial rms orbit error over a 10-day period. Therefore, a box-wing satellite form has been investigated to model the satellite as the combination of flat plates arranged in the shape of a box and a connected solar array. The nonconservative forces acting on each of the eight surfaces are computed and adjusted independently, yielding vector accelerations which are summed to compute the total aggregate effect on the satellite center of mass. Acceleration profiles from finite element analysis are compared to those from the boxwing model, and these tests indicate that modeling solar radiation pressure acceleration is relatively straightforward. However, the thermal imbalance modeling is made much more complicated given the satellite's complex attitude control law and its relation to the predicted temperature history for each surface. C1 HUGHES STX,LANHAM,MD 20706. RP MARSHALL, JA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,SPACE GEODESY BRANCH,GREENBELT,MD 20771, USA. RI Luthcke, Scott/D-6283-2012 NR 12 TC 45 Z9 46 U1 2 U2 4 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 99 EP 105 DI 10.2514/3.26408 PG 7 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000015 ER PT J AU THOMPSON, RA RILEY, CJ AF THOMPSON, RA RILEY, CJ TI ENGINEERING CODE FOR HYPERSONIC VEHICLE OPTIMIZATION SO JOURNAL OF SPACECRAFT AND ROCKETS LA English DT Note RP THOMPSON, RA (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,AEROTHERMODYNAM BRANCH,HAMPTON,VA 23681, USA. NR 13 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0022-4650 J9 J SPACECRAFT ROCKETS JI J. Spacecr. Rockets PD JAN-FEB PY 1994 VL 31 IS 1 BP 150 EP 152 DI 10.2514/3.26415 PG 3 WC Engineering, Aerospace SC Engineering GA MX220 UT WOS:A1994MX22000022 ER PT J AU TRINH, EH AF TRINH, EH TI ACOUSTICS AND THE STUDY OF THE MICROPHYSICS OF DROPS AND BUBBLES ON THE EARTH AND IN-SPACE SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA LA English DT Note RP TRINH, EH (reprint author), JET PROP LAB,PASADENA,CA 91109, USA. NR 0 TC 4 Z9 6 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0001-4966 J9 J ACOUST SOC AM JI J. Acoust. Soc. Am. PD JAN PY 1994 VL 95 IS 1 BP 567 EP 568 DI 10.1121/1.408353 PG 2 WC Acoustics; Audiology & Speech-Language Pathology SC Acoustics; Audiology & Speech-Language Pathology GA MR055 UT WOS:A1994MR05500064 ER PT J AU LANE, HW RICE, B KLOERIS, V FRYE, S SICONOLFI, SF SPECTOR, ER GRETEBECK, RL AF LANE, HW RICE, B KLOERIS, V FRYE, S SICONOLFI, SF SPECTOR, ER GRETEBECK, RL TI ENERGY-INTAKE, BODY-WEIGHT, AND LEAN BODY-MASS ARE MAINTAINED IN HEALTHY, ACTIVE WOMEN CONSUMING A US SPACE-SHUTTLE DIET SO JOURNAL OF THE AMERICAN DIETETIC ASSOCIATION LA English DT Note ID FLIGHT C1 NASA,LYNDON B JOHNSON SPACE CTR,SHUTTLE FOOD SYST,HOUSTON,TX 77058. NASA,LYNDON B JOHNSON SPACE CTR,EXERCISE PHYSIOL LAB,HOUSTON,TX 77058. KRUG LIFE SCI INC,HOUSTON,TX 77058. UNIV NO COLORADO,GREELEY,CO 80639. RP LANE, HW (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,BIOMED OPERAT & RES BRANCH,HOUSTON,TX 77058, USA. NR 8 TC 4 Z9 4 U1 0 U2 1 PU AMER DIETETIC ASSN PI CHICAGO PA 216 W JACKSON BLVD #800, CHICAGO, IL 60606-6995 SN 0002-8223 J9 J AM DIET ASSOC JI J. Am. Diet. Assoc. PD JAN PY 1994 VL 94 IS 1 BP 87 EP 88 DI 10.1016/0002-8223(94)92050-8 PG 2 WC Nutrition & Dietetics SC Nutrition & Dietetics GA MR351 UT WOS:A1994MR35100022 PM 8270762 ER PT J AU JACKSON, K MORTON, J LAVOIE, JA BOITNOTT, R AF JACKSON, K MORTON, J LAVOIE, JA BOITNOTT, R TI SCALING OF ENERGY ABSORBING COMPOSITE PLATES SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY LA English DT Article ID ABSORPTION AB The energy absorption response and crushing characteristics of geometrically scaled graphite-Kevlar epoxy composite plates were investigated. Two different trigger mechanisms including notch, and steeple geometries were incorporated into the plate specimens to initiate crushing. Sustained crushing was achieved with a new test fixture which provided lateral support to prevent global buckling. Values of specific sustained crushing stress (SSCS) were obtained which were lower than values reported for tube specimens from previously published data. Two sizes of hybrid plates were fabricated; a baseline or model plate, and a full-scale plate with in-plane dimensions scaled by a factor of two. The thickness dimension of the full-scale plates was increased using two different techniques: the ply-level method in which each ply orientation in the baseline laminate stacking sequence is doubled, and the sublaminate technique in which the baseline laminate stacking sequence is repeated as a group. Results indicated that the SSCS has a small dependence on trigger mechanism geometry. However, a reduction in the SSCS of 10-25% was observed for the full-scale plates as compared with the baseline specimens, indicating a scaling effect in the crushing response. RP JACKSON, K (reprint author), USA,VEHICLE STRUCT DIRECTORATE,ARL,NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 19 TC 21 Z9 21 U1 2 U2 3 PU AMER HELICOPTER SOC INC PI ALEXANDRIA PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 SN 0002-8711 J9 J AM HELICOPTER SOC JI J. Am. Helicopter Soc. PD JAN PY 1994 VL 39 IS 1 BP 17 EP 23 PG 7 WC Engineering, Aerospace SC Engineering GA PD168 UT WOS:A1994PD16800002 ER PT J AU BAKER, DJ AF BAKER, DJ TI MECHANICAL PROPERTY CHARACTERIZATION AND IMPACT RESISTANCE OF SELECTED GRAPHITE PEEK COMPOSITE-MATERIALS SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY LA English DT Article AB To use graphite/PEEK material on highly curved surfaces requires that the material be drapable and easily conformable to the surface. This paper presents the mechanical property characterization and impact resistance results for laminates made from two types of graphite/PEEK materials that will conform to a curved surface. These laminates were made from two different material forms. These forms are: 1.) a fabric where each yarn is a co-mingled Celion G30-500 3K graphite fiber and PEEK thermoplastic fiber; and 2.) an inter-leaved material of Celion G30-500 3K graphite fabric interleaved with PEEK thermoplastic film. The experimental results from the fabric laminates are compared with results for laminates made from AS4/PEEK unidirectional tape. The results indicate that the tension and compression moduli for quasi-isotropic and orthotropic laminates made from fabric materials are at least 79 percent of the modulus of equivalent laminates made from tape material. The strength of fabric material laminates is at least 80 percent of laminates made from tape material. The evaluation of the fabric material for shear stiffness indicates that a tape material laminate could be replaced by a fabric material laminate and still maintain 89 percent of the shear stiffness of the tape material laminate. The notched quasi-isotropic compression panel failure strength is 42 to 46 percent of the unnotched quasi-isotropic laminate strength. Damage area after impact with 20 ft-lbs of impact energy is larger for the co-mingled panels than for the interleaved panels. The interleaved panels have less damage than panels made from tape material. Residual compression strength of quasi-isotropic panels after impact of 20 ft-lbs of energy varies between 33 percent of the undamaged quasi-isotropic material strength for the tape material and 38 percent of the undamaged quasi-isotropic material strength for the co-mingled fabric material. RP BAKER, DJ (reprint author), USA,VEHICLE STRUCT DIRECTORATE,ARL,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 4 TC 0 Z9 0 U1 1 U2 3 PU AMER HELICOPTER SOC INC PI ALEXANDRIA PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 SN 0002-8711 J9 J AM HELICOPTER SOC JI J. Am. Helicopter Soc. PD JAN PY 1994 VL 39 IS 1 BP 24 EP 30 PG 7 WC Engineering, Aerospace SC Engineering GA PD168 UT WOS:A1994PD16800003 ER PT J AU TAKAHASHI, MD AF TAKAHASHI, MD TI ROTOR-STATE FEEDBACK IN THE DESIGN OF FLIGHT CONTROL LAWS FOR A HOVERING HELICOPTER SO JOURNAL OF THE AMERICAN HELICOPTER SOCIETY LA English DT Article AB The use of rigid-body and rotor-state feedback gains in the design of helicopter flight control laws was investigated analytically on a blade element, articulated rotor, helicopter model. The study was conducted while designing a control law to meet an existing military rotorcraft handling qualities design specification (ADS-33C) in low-speed flight. A systematic approach to meet this specification was developed along with an assessment of the function of these gains in the feedback loops. Using the results of this assessment, the pitch and roll crossover behavior was easily modified by adjusting the body attitude and rotor-flap feedback gains. Critical to understanding the feedback gains is that the roll and pitch rate dynamics each have second-order behavior, not the classic first-order behavior, which arises from a quasi-static rotor, six degree-of-freedom model. RP TAKAHASHI, MD (reprint author), USA,AVIAT & TROOP COMMAND,AEROFLIGHTDYNAM DIRECTORATE,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 9 TC 6 Z9 6 U1 0 U2 0 PU AMER HELICOPTER SOC INC PI ALEXANDRIA PA 217 N WASHINGTON ST, ALEXANDRIA, VA 22314 SN 0002-8711 J9 J AM HELICOPTER SOC JI J. Am. Helicopter Soc. PD JAN PY 1994 VL 39 IS 1 BP 50 EP 62 PG 13 WC Engineering, Aerospace SC Engineering GA PD168 UT WOS:A1994PD16800006 ER PT J AU WETZEL, TA MOERDER, DD AF WETZEL, TA MOERDER, DD TI VEHICLE TRAJECTORY OPTIMIZATION FOR AEROCAPTURE AT MARS SO JOURNAL OF THE ASTRONAUTICAL SCIENCES LA English DT Article ID DESIGN AB This paper considers joint optimization of trajectory and configuration in determining a minimum-mass vehicle for aeroassisted capture of a payload to a specific orbit at Mars. Aerocapture by a vehicle with a blunt aeroshell is assumed, supplemented by either chemical or nuclear thermal rocket impulses within the planet's sphere of influence. Optimal combinations of aeroshell size and exoatmospheric impulses are calculated for a range of entry velocities and constraints on integrated convective heating. C1 NASA,LANGLEY RES CTR,SPACECRAFT CONTROL BRANCH,HAMPTON,VA 23665. RP WETZEL, TA (reprint author), IOWA STATE UNIV SCI & TECHNOL,DEPT AEROSP ENGN & ENGN MECH,AMES,IA 50011, USA. NR 14 TC 6 Z9 6 U1 0 U2 2 PU AMER ASTRONAUTICAL SOC PI SPRINGFIELD PA 6352 ROLLING MILL PLACE SUITE 102, SPRINGFIELD, VA 22152 SN 0021-9142 J9 J ASTRONAUT SCI JI J. Astronaut. Sci. PD JAN-MAR PY 1994 VL 42 IS 1 BP 71 EP 89 PG 19 WC Engineering, Aerospace SC Engineering GA NP753 UT WOS:A1994NP75300005 ER PT J AU MEDINA, EA IRWIN, RD MITCHELL, JR BUKLEY, AP AF MEDINA, EA IRWIN, RD MITCHELL, JR BUKLEY, AP TI MIMO SYSTEM-IDENTIFICATION USING FREQUENCY-RESPONSE DATA SO JOURNAL OF THE ASTRONAUTICAL SCIENCES LA English DT Article ID EIGENSYSTEM REALIZATION-ALGORITHM; MODEL-REDUCTION AB An approach to the problem of obtaining a multi-input, multi-output state-space model of a system from its individual input/output frequency responses is presented. Given a set of system poles, which have been obtained by combining poles of single-input, single-output models, by modal tests, or by other means, the Residue Identification Algorithm (RID) computes the residue matrices of the modes, guaranteeing that each input/output frequency response is fitted in the least squares sense. A modal form state-space realization of the system is then computed from the residue matrices and the mode transfer functions. Results of the application of RID to experimental frequency responses of a large space structure ground test facility are presented and compared to those obtained via the Eigensystem Realization Algorithm. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. RP MEDINA, EA (reprint author), OHIO UNIV,DEPT ELECT & COMP ENGN,ATHENS,OH 45701, USA. NR 21 TC 2 Z9 2 U1 0 U2 1 PU AMER ASTRONAUTICAL SOC PI SPRINGFIELD PA 6352 ROLLING MILL PLACE SUITE 102, SPRINGFIELD, VA 22152 SN 0021-9142 J9 J ASTRONAUT SCI JI J. Astronaut. Sci. PD JAN-MAR PY 1994 VL 42 IS 1 BP 113 EP 129 PG 17 WC Engineering, Aerospace SC Engineering GA NP753 UT WOS:A1994NP75300007 ER PT J AU ABRAMS, MJ CHADWICK, OH AF ABRAMS, MJ CHADWICK, OH TI TECTONIC AND CLIMATIC IMPLICATIONS OF ALLUVIAL-FAN SEQUENCES ALONG THE BATINAH COAST, OMAN SO JOURNAL OF THE GEOLOGICAL SOCIETY LA English DT Article ID GULF AB Along the Batinah coast in northern Oman, seven levels of alluvial fan remnants stretching from the Oman Mountains to the Gulf of Oman were considered evidence for Quaternary uplift by previous workers. We suggest that these regionally extensive fan remnants were instead caused by Quaternary climate fluctuations acting on the Oman Mountain headwaters and the major wadi systems. The gradients of these wadis were oversteepened twice: by mid-Tertiary uplift of the mountains and by a major Plio-Pleistocene alluvial aggradation event. Wadi channels are still being cut through this massive deposit. The episodic nature of climatically induced downcutting has produced the fan-terrace levels. The southern Batinah coast is a hinge zone about which the Arabian plate is tilting as it collides with the Eurasian plate. To the north, the Musandam peninsula and the associated fans are subsiding in response to subduction. To the south, uplifted marine shorelines suggest an apparent rigid plate response to the northward subduction. RP ABRAMS, MJ (reprint author), CALTECH,JET PROP LAB,PASADENA,CA 91109, USA. NR 23 TC 15 Z9 15 U1 0 U2 3 PU GEOLOGICAL SOC PUBL HOUSE PI BATH PA UNIT 7, BRASSMILL ENTERPRISE CENTRE, BATH, AVON, ENGLAND BA1 3JN SN 0016-7649 J9 J GEOL SOC LONDON JI J. Geol. Soc. PD JAN PY 1994 VL 151 BP 51 EP 58 DI 10.1144/gsjgs.151.1.0051 PN 1 PG 8 WC Geosciences, Multidisciplinary SC Geology GA MR045 UT WOS:A1994MR04500007 ER PT J AU BENEDICT, R BRECKINRIDGE, JB FRIED, DL AF BENEDICT, R BRECKINRIDGE, JB FRIED, DL TI ATMOSPHERIC-COMPENSATION TECHNOLOGY - INTRODUCTION SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION LA English DT Editorial Material C1 JET PROP LAB,PASADENA,CA 91109. OPT SCI CO,ANAHEIM,CA 92825. RP BENEDICT, R (reprint author), WJ SCHAFER ASSOCIATES INC,ALBUQUERQUE,NM 87106, USA. NR 0 TC 8 Z9 8 U1 2 U2 3 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3232 J9 J OPT SOC AM A JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis. PD JAN PY 1994 VL 11 IS 1 BP 257 EP 260 DI 10.1364/JOSAA.11.000257 PG 4 WC Optics SC Optics GA MT389 UT WOS:A1994MT38900026 ER PT J AU STARK, G BRAULT, JW ABRAMS, MC AF STARK, G BRAULT, JW ABRAMS, MC TI FOURIER-TRANSFORM SPECTRA OF THE A (2)SIGMA(+)-X(2)PI DELTA-NU=0-BANDS OF OH AND OD SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS LA English DT Article ID MOLECULAR-CONSTANTS; TERM VALUES; STATES; SYSTEM; BAND; PARAMETERS; LIFETIMES; EMISSION AB Fourier-transform spectra of the Delta v = 0 emission bands of the OH and OD A(2) Sigma(+)-X(2)II systems, produced in a hollow-cathode discharge, were recorded in the spectral region 29000-34000 cm(-1) with a resolution of 0.05 cm(-1). Line lists are presented for the 0-0, 1-1, and 2-2 bands of both molecules; absolute line position accuracies for the strongest lines are approximately 0.001 cm(-1). The new measured line positions are used in the derivation of effective molecular parameters and rotational term values for individual vibrational levels in the A(2) Sigma(+) and X(2)II states. C1 NATL SOLAR OBSERV,TUCSON,AZ 85726. CALTECH,JET PROP LAB,DIV EARTH & SPACE SCI,PASADENA,CA 91109. RP STARK, G (reprint author), WELLESLEY COLL,DEPT PHYS,WELLESLEY,MA 02181, USA. NR 30 TC 40 Z9 40 U1 1 U2 9 PU OPTICAL SOC AMER PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 SN 0740-3224 J9 J OPT SOC AM B JI J. Opt. Soc. Am. B-Opt. Phys. PD JAN PY 1994 VL 11 IS 1 BP 3 EP 32 DI 10.1364/JOSAB.11.000003 PG 30 WC Optics SC Optics GA MQ781 UT WOS:A1994MQ78100001 ER PT J AU PARK, C HOWE, JT JAFFE, RL CANDLER, GV AF PARK, C HOWE, JT JAFFE, RL CANDLER, GV TI REVIEW OF CHEMICAL-KINETIC PROBLEMS OF FUTURE NASA MISSIONS .2. MARS ENTRIES SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID SHOCK-WAVES; CN; DISSOCIATION; TUBE C1 NASA,AMES RES CTR,PHYS BRANCH,MOFFETT FIELD,CA 94035. NASA,AMES RES CTR,FLUID DYNAM BRANCH,MOFFETT FIELD,CA 94035. NASA,AMES RES CTR,COMPUTAT CHEM BRANCH,MOFFETT FIELD,CA 94035. UNIV MINNESOTA,MINNEAPOLIS,MN 55455. RP PARK, C (reprint author), NASA,AMES RES CTR,AEROTHERMODYNAM BRANCH,MOFFETT FIELD,CA 94035, USA. NR 61 TC 163 Z9 173 U1 3 U2 13 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD JAN-MAR PY 1994 VL 8 IS 1 BP 9 EP 23 DI 10.2514/3.496 PG 15 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NA665 UT WOS:A1994NA66500002 ER PT J AU MILOS, FS RASKY, DJ AF MILOS, FS RASKY, DJ TI REVIEW OF NUMERICAL PROCEDURES FOR COMPUTATIONAL SURFACE THERMOCHEMISTRY SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID PREDICTION; FLOWS; EARTH AB Models and equations for surface thermochemistry and near-surface thermophysics aerodynamically heated thermal protection materials are reviewed, with particular emphasis on computational boundary conditions for surface mass and energy transfer. The surface energy and mass balances, coupled with an appropriate ablation or surface catalysis model, provide complete thermochemical boundary conditions for a true multidisciplinary solution of the fully coupled fluid-dynamics/solid mechanics problem. Practical approximate solutions can be obtained by using a detailed model with full thermophysics for either the solid or fluid phase and a semianalytic method for the other half of the problem. A significant increase in the state-of-the-art in aerothermal computational fluid dynamics is possible by uniting computational fluid dynamic (CFD) methodology with surface thermochemistry boundary conditions and the heat-balance-integral method. RP MILOS, FS (reprint author), NASA,AMES RES CTR,THERMAL PROTECT MAT BRANCH,MOFFETT FIELD,CA 94035, USA. NR 66 TC 35 Z9 36 U1 0 U2 2 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD JAN-MAR PY 1994 VL 8 IS 1 BP 24 EP 34 DI 10.2514/3.497 PG 11 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NA665 UT WOS:A1994NA66500003 ER PT J AU SHARMA, SP AF SHARMA, SP TI ROTATIONAL RELAXATION OF MOLECULAR-HYDROGEN AT MODERATE TEMPERATURES SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article AB Using a coupled rotation-vibration-dissociation model1 the rotational relaxation times for molecular hydrogen as a function of final temperature (500-5000 K), in a hypothetical scenario of sudden compression, are computed. The theoretical model is based on a master equation solver. The bound-bound and bound-free transition rates have been computed using a quasiclassical trajectory method.1 A review of the available experimental data on the rotational relaxation of hydrogen is presented, with a critical overview of the method of measurements and data reduction, including the sources of errors. These experimental data are then compared with the computed results. RP SHARMA, SP (reprint author), NASA,AMES RES CTR,MOFFETT FIELD,CA 94035, USA. NR 9 TC 8 Z9 8 U1 0 U2 1 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD JAN-MAR PY 1994 VL 8 IS 1 BP 35 EP 39 DI 10.2514/3.498 PG 5 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NA665 UT WOS:A1994NA66500004 ER PT J AU FARMER, JT HOWELL, JR AF FARMER, JT HOWELL, JR TI MONTE-CARLO PREDICTION OF RADIATIVE HEAT-TRANSFER IN INHOMOGENEOUS, ANISOTROPIC, NONGRAY MEDIA SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID SCATTERING MEDIA AB A Monte Carlo solution technique has been formulated to predict the radiative heat transfer in three-dimensional, inhomogeneous participating media which exhibit spectrally dependent emission and absorption and anisotropic scattering. Details of the technique and selected numerical sensitivities are discussed. The technique was applied to a problem involving a medium composed of a gas mixture of carbon dioxide and nitrogen and suspended carbon particles. A homogeneous medium was modeled to examine the effect of total pressure and carbon-particle concentration on radiative heat transfer. Variation in total pressure, over the range studied, had minimal effect on the amount of heat radiated to the enclosure walls and on the radiative-flux distribution within the medium. Increases in the carbon particle concentration produced significantly higher heat fluxes at the boundaries and altered the radiative flux distribution. The technique was then applied to an inhomogeneous medium to examine effects of specific temperature and carbon particle concentration distributions on radiative heat transfer. For the inhomogeneous conditions examined, the largest radiative flux divergence occurs near the center of the medium and the regions near some enclosure walls act as energy sinks. C1 UNIV TEXAS,DEPT MECH ENGN,AUSTIN,TX 78712. RP FARMER, JT (reprint author), NASA,LANGLEY RES CTR,DIV ADV SPACE CONCEPTS,HAMPTON,VA 23665, USA. NR 15 TC 44 Z9 46 U1 1 U2 6 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD JAN-MAR PY 1994 VL 8 IS 1 BP 133 EP 139 DI 10.2514/3.511 PG 7 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NA665 UT WOS:A1994NA66500017 ER PT J AU CHAI, JC PATANKAR, SV LEE, HO AF CHAI, JC PATANKAR, SV LEE, HO TI EVALUATION OF SPATIAL DIFFERENCING PRACTICES FOR THE DISCRETE-ORDINATES METHOD SO JOURNAL OF THERMOPHYSICS AND HEAT TRANSFER LA English DT Article ID RECTANGULAR ENCLOSURES AB Three popular spatial differencing practices for the discrete ordinates method are examined in detail for a basic two-dimensional Cartesian coordinates problem. These differencing schemes are 1) positive, 2) step, and 3) diamond schemes. The diamond scheme is shown to produce negative intensities under certain conditions irrespective of the number of control volumes employed, requiring some form of negative intensity fix-up. In absorbing-emitting or absorbing-emitting-scattering media, grid refinement can result in negative intensities when the diamond scheme is used. The diamond scheme and a positive scheme, which sets the negative intensities encountered in the diamond scheme to zero or very small number for purely absorbing media, can also produce physically unrealistic overshoots. The step scheme, although not considered as accurate as the diamond scheme, gives physically realistic results for the basic problem considered. Further evaluation of Fiveland's positive conditions, and variable weight and exponential-type schemes indicate a need for alternate spatial differencing schemes that describe the physics of radiative heat transfer more accurately. C1 NASA,LEWIS RES CTR,DIV PROPULS SYST,CLEVELAND,OH 44135. RP CHAI, JC (reprint author), UNIV MINNESOTA,DEPT MECH ENGN,MINNEAPOLIS,MN 55455, USA. RI Chai, John/A-3764-2010 NR 10 TC 73 Z9 75 U1 0 U2 4 PU AMER INST AERONAUT ASTRONAUT PI RESTON PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091 SN 0887-8722 J9 J THERMOPHYS HEAT TR JI J. Thermophys. Heat Transf. PD JAN-MAR PY 1994 VL 8 IS 1 BP 140 EP 144 DI 10.2514/3.512 PG 5 WC Thermodynamics; Engineering, Mechanical SC Thermodynamics; Engineering GA NA665 UT WOS:A1994NA66500018 ER PT J AU DUNN, MG KIM, J CIVINSKAS, KC BOYLE, RJ AF DUNN, MG KIM, J CIVINSKAS, KC BOYLE, RJ TI TIME-AVERAGED HEAT-TRANSFER AND PRESSURE MEASUREMENTS AND COMPARISON WITH PREDICTION FOR A 2-STAGE TURBINE SO JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 37th International Gas Turbine and Aeroengine Congress and Exposition CY JUN 01-04, 1992 CL COLOGNE, GERMANY ID FLUX; ROTOR AB Time-averaged Stanton number and surface-pressure distributions are reported for the first-stage vane row and the first-stage blade row of the Rocketdyne Space Shuttle Main Engine two-stage fuel-side turbine. These measurements were made at 10, 50, and 90 percent span on both the pressure and suction surfaces of the component. Stanton-number distributions are also reported for the second-stage vane at 50 percent span. A shock tube is used as a short-duration source of heated and pressurized air to which the turbine is subjected. Platinum thin-film gages are used to obtain the heat-flux measurements and miniature silicone-diaphragm pressure transducers are wed to obtain the surface pressure measurements. The first-stage vane Stanton number distributions are compared with predictions obtained using a quasi-three dimensional Navier-Stokes solution and a version of STAN5. This same N-S technique was also used to obtain predictions for the first blade and the second vane. C1 USA,PROP DIRECTORATE,AVSCOM,CORPUS CHRISTI,TX. NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP DUNN, MG (reprint author), CALSPAN UB RES CTR,BUFFALO,NY 14225, USA. NR 29 TC 7 Z9 7 U1 0 U2 1 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0889-504X J9 J TURBOMACH JI J. Turbomach.-Trans. ASME PD JAN PY 1994 VL 116 IS 1 BP 14 EP 22 DI 10.1115/1.2928270 PG 9 WC Engineering, Mechanical SC Engineering GA MU485 UT WOS:A1994MU48500002 ER PT J AU JOHNSON, BV WAGNER, JH STEUBER, GD YEH, FC AF JOHNSON, BV WAGNER, JH STEUBER, GD YEH, FC TI HEAT-TRANSFER IN ROTATING SERPENTINE PASSAGES WITH TRIPS SKEWED TO THE FLOW SO JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME LA English DT Article; Proceedings Paper CT 37th International Gas Turbine and Aeroengine Congress and Exposition CY JUN 01-04, 1992 CL COLOGNE, GERMANY ID CHANNEL FLOW AB Experiments were conducted to determine the effects of buoyancy and Coriolis forces on heat transfer in turbine blade internal coolant passages. The experiments were conducted with a large-scale, multipass, heat transfer model with both radially inward and outward flow. Trip strips, skewed at 45 deg to the flow direction, were machined on the leading and trailing surfaces of the radial coolant passages. An analysis of the governing flow equations showed that four parameters influence the heat transfer in rotating passages: coolant-to-wall temperature ratio, rotation number, Reynolds number, and radius-to-passage hydraulic diameter ratio. The first three of these four parameters were varied over ranges that are typical of advanced gas turbine engine operating conditions. Results were correlated and compared to previous results from similar stationary and rotating models with smooth walls and with trip strips normal to the flow direction. The heat transfer coefficients on surfaces, where the heat transfer decreased with rotation and buoyancy, decreased to as low as 40 percent of the value without rotation. However, the maximum values of the heat transfer coefficients with high rotation were only slightly above the highest levels previously obtained with the smooth wall model. If was concluded that (I) both Coriolis and buoyancy effects must be considered in turbine blade cooling designs with trip strips, (2) the effects of rotation are markedly different depending upon the flow direction, and (3) the heat transfer with skewed trip strips is less sensitive to buoyancy than the heat transfer in models with either smooth walls or normal trips. Therefore, skewed trip strips rather than normal trip strips are recommended and geometry-specific tests will be required for accurate design information. C1 PRATT & WHITNEY,E HARTFORD,CT 06108. NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP JOHNSON, BV (reprint author), UNITED TECHNOL RES CTR,E HARTFORD,CT 06108, USA. NR 30 TC 57 Z9 57 U1 0 U2 3 PU ASME-AMER SOC MECHANICAL ENG PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 0889-504X J9 J TURBOMACH JI J. Turbomach.-Trans. ASME PD JAN PY 1994 VL 116 IS 1 BP 113 EP 123 DI 10.1115/1.2928265 PG 11 WC Engineering, Mechanical SC Engineering GA MU485 UT WOS:A1994MU48500014 ER PT J AU AGUIRRE, AA BALAZS, GH ZIMMERMAN, B SPRAKER, TR AF AGUIRRE, AA BALAZS, GH ZIMMERMAN, B SPRAKER, TR TI EVALUATION OF HAWAIIAN GREEN TURTLES (CHELONIA-MYDAS) FOR POTENTIAL PATHOGENS ASSOCIATED WITH FIBROPAPILLOMAS SO JOURNAL OF WILDLIFE DISEASES LA English DT Article DE BACTERIOLOGY; CHELONIA MYDAS; DISEASE SURVEY; FIBROPAPILLOMAS; GREEN TURTLE; HAWAII; HISTOPATHOLOGY ID CUTANEOUS FIBROPAPILLOMAS; NORTHERN AUSTRALIA; MARINE TURTLES; DISEASES AB Thirty-two juvenile green turtles (Chelonia mydas) were captured alive in Kaneohe Bay, Island of Oahu, Hawaii, during September 1991. Ten of the turtles sampled were afflicted with green turtle fibropapillomatosis (GTFP) in varying degrees of severity. Virus isolation attempts were negative in all individuals. Using nasopharyngeal and cloacal swabs, we isolated 28 Gram negative bacteria, five Gram positive cocci, Bacillus spp., and diphtheroids. The most common isolated included Pseudomonas fluorescens (68%), P. putrefaciens (66%), Vibrio alginolyticus (50%), non-hemoluytic Streptococcus (50%), V. damsela (47%), and V.fluvialis (47%). Chlamydial antigen was detected in four of the turtles sampled. The primary lesions in animals with GTFP were hyperplasia of squamous epithelial cells and mesodermal proliferation with a marked degree of orthokeratotic hyperkaeratosis. Mites, leeches, and other organisms were associated with the surface of papilloma lesions. The etiologic agent of GTFP was not isolated. C1 NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,HONOLULU LAB,HONOLULU,HI 96822. WILDLIFE PHARMACEUT INC,FT COLLINS,CO 80524. COLORADO STATE UNIV,COLL VET MED,DIAGNOST LAB,FT COLLINS,CO 80523. RP AGUIRRE, AA (reprint author), COLORADO STATE UNIV,DEPT FISHERY & WILDLIFE BIOL,POB 1522,FT COLLINS,CO 80522, USA. NR 29 TC 61 Z9 62 U1 0 U2 7 PU WILDLIFE DISEASE ASSN, INC PI LAWRENCE PA 810 EAST 10TH ST, LAWRENCE, KS 66044-8897 SN 0090-3558 J9 J WILDLIFE DIS JI J. Wildl. Dis. PD JAN PY 1994 VL 30 IS 1 BP 8 EP 15 PG 8 WC Veterinary Sciences SC Veterinary Sciences GA MU483 UT WOS:A1994MU48300002 PM 8151829 ER PT B AU SWANSON, K BRESINA, J DRUMMOND, M AF SWANSON, K BRESINA, J DRUMMOND, M BE Buntine, W Fisher, DH TI JUST-IN-CASE SCHEDULING FOR AUTOMATIC TELESCOPES SO KNOWLEDGE-BASED ARTIFICIAL INTELLIGENCE SYSTEMS IN AEROSPACE AND INDUSTRY SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS, AMER ASSOC ARTIFICIAL INTELLIGENCE, IEEE, SYSTEMS MAN & CYBERNET SOC C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. 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 0-8194-1548-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2244 BP 10 EP 19 DI 10.1117/12.169393 PG 10 WC Engineering, Aerospace; Computer Science, Artificial Intelligence SC Engineering; Computer Science GA BA45A UT WOS:A1994BA45A00002 ER PT B AU QUINN, T SCHLEGELMILCH, R AF QUINN, T SCHLEGELMILCH, R BE Buntine, W Fisher, DH TI APPLYING MODEL-BASED DIAGNOSTICS TO SPACE POWER DISTRIBUTION SO KNOWLEDGE-BASED ARTIFICIAL INTELLIGENCE SYSTEMS IN AEROSPACE AND INDUSTRY SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Knowledge-Based Artificial Intelligence Systems in Aerospace and Industry CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS, AMER ASSOC ARTIFICIAL INTELLIGENCE, IEEE, SYSTEMS MAN & CYBERNET SOC C1 NYMA INC,NASA,LEWIS RES CTR,BROOKPARK,OH 44142. 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 0-8194-1548-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2244 BP 206 EP 217 DI 10.1117/12.169395 PG 12 WC Engineering, Aerospace; Computer Science, Artificial Intelligence SC Engineering; Computer Science GA BA45A UT WOS:A1994BA45A00019 ER PT B AU SHIRINZADEH, B GREGORY, RW AF SHIRINZADEH, B GREGORY, RW BE Locke, RJ TI RESONANCE LAMP ABSORPTION TECHNIQUE FOR SIMULTANEOUS DETERMINATION OF THE OH CONCENTRATION AND TEMPERATURE AT 10 SPATIAL POSITIONS IN COMBUSTION ENVIRONMENTS SO LASER APPLICATIONS IN COMBUSTION AND COMBUSTION DIAGNOSTICS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Applications in Combustion and Combustion Diagnostics II CY JAN 25-26, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. 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 0-8194-1415-8 J9 P SOC PHOTO-OPT INS PY 1994 VL 2122 BP 29 EP 48 DI 10.1117/12.171298 PG 20 WC Thermodynamics; Engineering, Mechanical; Optics SC Thermodynamics; Engineering; Optics GA BA43D UT WOS:A1994BA43D00004 ER PT B AU BEHEIM, G SOTOMAYOR, JL TUMA, ML TABIBAZAR, M AF BEHEIM, G SOTOMAYOR, JL TUMA, ML TABIBAZAR, M BE Boyd, IW TI LASER-ANNEALED THIN-FILM FIBEROPTIC TEMPERATURE SENSOR SO LASER-ASSISTED FABRICATION OF THIN FILMS AND MICROSTRUCTURES SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Symposium on Laser-Assisted Fabrication of Thin Films and Microstructures CY AUG 17-19, 1993 CL QUEBEC, CANADA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS, GOVT CANADA, GOVT QUEBEC, GREATER QUEBEC ECON DEV CORP, CANADIAN ASSOC PHYSICISTS, DEF RES ESTAB VALCARTIER, NATL OPT INST, QUEBEC CITY, NATL RES COUNCIL CANADA, INST MICROSTRUCT SCI, NAT SCI & ENGN RES COUNCIL, AMER PHYS SOC C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. 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 0-8194-1304-6 J9 P SOC PHOTO-OPT INS PY 1994 VL 2045 BP 217 EP 221 DI 10.1117/12.167561 PG 5 WC Materials Science, Coatings & Films; Optics SC Materials Science; Optics GA BZ74A UT WOS:A1994BZ74A00022 ER PT B AU LANDIS, GA AF LANDIS, GA BE Walker, JV Montgomery, EE TI PROSPECTS FOR SOLAR-PUMPED SEMICONDUCTOR-LASERS SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS RP LANDIS, GA (reprint author), NASA,LEWIS RES CTR 3021,CLEVELAND,OH 44135, USA. NR 0 TC 1 Z9 1 U1 0 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 58 EP 65 DI 10.1117/12.174198 PG 8 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00007 ER PT B AU MACNEAL, P JEWETT, K AF MACNEAL, P JEWETT, K BE Walker, JV Montgomery, EE TI DESIGN AND FABRICATION OF A LARGE PRIMARY REFLECTOR STRUCTURE FOR SPACE LASER POWER BEAMING SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 91 EP 98 DI 10.1117/12.174173 PG 8 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00011 ER PT B AU FIJANY, A MILMAN, M REDDING, D AF FIJANY, A MILMAN, M REDDING, D BE Walker, JV Montgomery, EE TI MASSIVELY-PARALLEL ALGORITHMS FOR REAL-TIME WAVE-FRONT CONTROL OF A DENSE ADAPTIVE OPTICS SYSTEM SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 99 EP 113 DI 10.1117/12.174174 PG 15 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00012 ER PT B AU MILMAN, M FIJANY, A REDDING, D AF MILMAN, M FIJANY, A REDDING, D BE Walker, JV Montgomery, EE TI WAVE-FRONT CONTROL ALGORITHMS AND ANALYSIS FOR A DENSE ADAPTIVE OPTICS SYSTEMS SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 114 EP 124 DI 10.1117/12.174175 PG 11 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00013 ER PT B AU MILLER, LM KAISER, WJ KENNY, T VANZANDT, T AF MILLER, LM KAISER, WJ KENNY, T VANZANDT, T BE Walker, JV Montgomery, EE TI CAPACITIVE EDGE SENSOR DESIGN FOR SELENE SEGMENTED PRIMARY MIRROR SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 125 EP 138 DI 10.1117/12.174176 PG 14 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00014 ER PT B AU LANDIS, GA AF LANDIS, GA BE Walker, JV Montgomery, EE TI APPLICATIONS FOR SPACE POWER BY LASER TRANSMISSION SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,WJ SHAFER ASSOCIATES,LEWIS RES CTR 3021,CLEVELAND,OH 44135. 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 252 EP 255 DI 10.1117/12.174188 PG 4 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00024 ER PT B AU JAIN, RK LANDIS, GA AF JAIN, RK LANDIS, GA BE Walker, JV Montgomery, EE TI MODELING OF HIGH-EFFICIENCY CONCENTRATOR SOLAR-CELLS UNDER LASER-PULSE SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP 264 EP 268 DI 10.1117/12.174190 PG 5 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00026 ER PT B AU WALKER, JV MONTGOMERY, EE AF WALKER, JV MONTGOMERY, EE BE Walker, JV Montgomery, EE TI LASER POWER BEAMING - NEW LIGHT AND FOCUS AN INTRODUCTION TO THE 1994 OE/LASE LASER POWER BEAMING CONFERENCE SO LASER POWER BEAMING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Laser Power Beaming CY JAN 27-28, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. 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 0-8194-1414-X J9 P SOC PHOTO-OPT INS PY 1994 VL 2121 BP R9 EP R14 PG 6 WC Optics SC Optics GA BA43C UT WOS:A1994BA43C00001 ER PT B AU AFZAL, RS SELKER, MD AF AFZAL, RS SELKER, MD GP IEEE TI STRIPE PUMPING - AN ALTERNATIVE TO END-PUMPING SO LEOS '94 - CONFERENCE PROCEEDINGS, VOL 2: IEEE LASERS AND ELECTRO-OPTICS SOCIETY 1994 7TH ANNUAL MEETING LA English DT Proceedings Paper CT 7th Annual Meeting of the IEEE Lasers-and-Electro-Optics-Society CY OCT 31-NOV 03, 1994 CL BOSTON, MA SP IEEE, LASERS & ELECTRO OPT SOC 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 0-7803-1470-0 J9 IEEE LEOS ANN MTG PY 1994 BP 174 EP 175 PG 2 WC Optics SC Optics GA BC36N UT WOS:A1994BC36N00084 ER PT B AU WINKER, DM MCCORMICK, MP AF WINKER, DM MCCORMICK, MP BE Werner, C TI AEROSOL AND CLOUD SENSING WITH THE LIDAR IN-SPACE TECHNOLOGY EXPERIMENT (LITE) SO LIDAR TECHNIQUES FOR REMOTE SENSING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Lidar Techniques for Remote Sensing CY SEP 28-29, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, INT SOC OPT ENGN, NATL RES COUNCIL ITALY, ITALIAN ASSOC REMOTE SENSING C1 NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23681. 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 0-8194-1640-1 J9 P SOC PHOTO-OPT INS PY 1994 VL 2310 BP 98 EP 105 PG 8 WC Engineering, Aerospace; Remote Sensing SC Engineering; Remote Sensing GA BC28X UT WOS:A1994BC28X00011 ER PT B AU KORB, CL GENTRY, BM LI, SXF AF KORB, CL GENTRY, BM LI, SXF BE Werner, C TI SPACEOBORNE LIDAR WIND MEASUREMENT WITH THE EDGE TECHNIQUE SO LIDAR TECHNIQUES FOR REMOTE SENSING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Lidar Techniques for Remote Sensing CY SEP 28-29, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, INT SOC OPT ENGN, NATL RES COUNCIL ITALY, ITALIAN ASSOC REMOTE SENSING C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 5 U2 5 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1640-1 J9 P SOC PHOTO-OPT INS PY 1994 VL 2310 BP 206 EP 213 PG 8 WC Engineering, Aerospace; Remote Sensing SC Engineering; Remote Sensing GA BC28X UT WOS:A1994BC28X00025 ER PT S AU SALEM, JA CHOI, SR AF SALEM, JA CHOI, SR BE Brinkman, CR Duffy, SF TI CREEP-BEHAVIOR OF SILICON-NITRIDE DETERMINED FROM CURVATURE AND NEUTRAL AXIS SHIFT MEASUREMENTS IN FLEXURE TESTS SO LIFE PREDICTION METHODOLOGIES AND DATA FOR CERAMIC MATERIALS SE AMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION LA English DT Proceedings Paper CT Symposium on Life Prediction Methodologies and Data for Ceramic Materials CY JAN 11-13, 1993 CL COCOA BEACH, FL SP AMER SOC TESTING & MAT, COMM ADV CERAM, AMER CERAM SOC DE SILICON NITRIDE; CREEP; TENSION; COMPRESSION; BENDING; FLEXURE; NEUTRAL AXIS; CRACKING; STIFFNESS C1 NASA,LEWIS RES CTR,STRUCT INTEGR BRANCH,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMERICAN SOCIETY TESTING AND MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DRIVE, W CONSHOHOCKEN, PA 19428-2959 SN 1071-5827 BN 0-8031-1864-3 J9 AM SOC TEST MATER PY 1994 VL 1201 BP 84 EP 97 DI 10.1520/STP12776S PG 14 WC Materials Science, Ceramics SC Materials Science GA BZ95E UT WOS:A1994BZ95E00005 ER PT S AU NEMETH, NN POWERS, LM JANOSIK, LA GYEKENYESI, JP AF NEMETH, NN POWERS, LM JANOSIK, LA GYEKENYESI, JP BE Brinkman, CR Duffy, SF TI TIME-DEPENDENT RELIABILITY-ANALYSIS OF MONOLITHIC CERAMIC COMPONENTS USING THE CARES LIFE INTEGRATED DESIGN PROGRAM SO LIFE PREDICTION METHODOLOGIES AND DATA FOR CERAMIC MATERIALS SE AMERICAN SOCIETY FOR TESTING AND MATERIALS SPECIAL TECHNICAL PUBLICATION LA English DT Proceedings Paper CT Symposium on Life Prediction Methodologies and Data for Ceramic Materials CY JAN 11-13, 1993 CL COCOA BEACH, FL SP AMER SOC TESTING & MAT, COMM ADV CERAM, AMER CERAM SOC DE CARES; CARES LIFE; CERAMIC DESIGN; FATIGUE; RELIABILITY; BATDORF; WEIBULL; SUBCRITICAL CRACK GROWTH C1 NASA,LEWIS RES CTR,STRUCT INTEGR BRANCH,CLEVELAND,OH 44135. NR 0 TC 5 Z9 5 U1 0 U2 0 PU AMERICAN SOCIETY TESTING AND MATERIALS PI W CONSHOHOCKEN PA 100 BARR HARBOR DRIVE, W CONSHOHOCKEN, PA 19428-2959 SN 1071-5827 BN 0-8031-1864-3 J9 AM SOC TEST MATER PY 1994 VL 1201 BP 390 EP 408 DI 10.1520/STP12795S PG 19 WC Materials Science, Ceramics SC Materials Science GA BZ95E UT WOS:A1994BZ95E00024 ER PT S AU CHAPES, SK MORRISON, DR GUIKEMA, JA LEWIS, ML SPOONER, BS AF CHAPES, SK MORRISON, DR GUIKEMA, JA LEWIS, ML SPOONER, BS BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI PRODUCTION AND ACTION OF CYTOKINES IN-SPACE SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID ACTIVATION; MICROGRAVITY; LYMPHOCYTES; INTERFERON AB B6MP102 cells, a continuously cultured murine bone marrow macrophage cell line, were tested for secretion of tumor necrosis factor-alpha and Interleukin-1 during space flight. We found that B6MP102 cells secreted more tumor necrosis factor-alpha and interleukin-1 when stimulated in space with lipopolysaccharide than controls similarly stimulated on earth. This compared to increased secretion of interferon-beta and -gamma by lymphocytes that was measured on the same shuttle flights. Although space flight enhanced B6MP102 secretion of tumor necrosis factor-alpha, an experiment on a subsequent space flight (STS-50) found that cellular cytotoxicity, mediated by tumor necrosis factor-alpha, was inhibited. C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. UNIV ALABAMA,DEPT BIOL SCI,HUNTSVILLE,AL 35899. RP CHAPES, SK (reprint author), KANSAS STATE UNIV AGR & APPL SCI,DIV BIOL,MANHATTAN,KS 66506, USA. FU NIDA NIH HHS [DAMD17-89-Z-9039] NR 12 TC 20 Z9 22 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 5 EP 9 DI 10.1016/0273-1177(94)90380-8 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00002 PM 11537959 ER PT S AU HYMER, WC SHELLENBERGER, K GRINDELAND, R AF HYMER, WC SHELLENBERGER, K GRINDELAND, R BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI PITUITARY-CELLS IN-SPACE SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID PERPENDICULAR LIGHT SCATTER; FLOW CYTOMETRIC ANALYSIS; GROWTH-HORMONE; ANTERIOR-PITUITARY; PROLACTIN CELLS; GLAND; VARIANTS; LOCATION; CULTURE; ASSAY AB Cells of the mammalian pituitary gland synthesize and secrete several protein hormones which regulate a number of organ systems throughout the body. These include the musculoskeletal, immune, vascular and endocrine systems. Since changes occur in these tissues as a result of spaceflight, and since pituitary growth hormone (GH) and prolactin (PRL) play a role in the control of these systems on earth, we have focused attention over the last 10 years on GH and PRL cell function during and after spaceflight. The cumulative results of 4 spaceflight missions and several mimicked microgravity (mu G) experiments establish 1) that production and release of biologically active GH and PRL is repeatedly and significantly attenuated (usually > 50%) and 2) that changes in cell morphology also occur. In this paper we describe our results within the framework of methodologies and approaches frequently used to study pituitary cell function on earth. In so doing we hope to develop future flight experiments aimed at uncovering possible mu G ''sensing systems'' within the pituitary cell. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP HYMER, WC (reprint author), PENN STATE UNIV,CTR CELL RES,204 S FREAR,UNIV PK,PA 16802, USA. NR 39 TC 5 Z9 5 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 61 EP 70 DI 10.1016/0273-1177(94)90386-7 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00007 PM 11537960 ER PT S AU JESSUP, JM BROWN, K ISHII, S FORD, R GOODWIN, TJ SPAULDING, G AF JESSUP, JM BROWN, K ISHII, S FORD, R GOODWIN, TJ SPAULDING, G BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI SIMULATED MICROGRAVITY DOES NOT ALTER EPITHELIAL-CELL ADHESION TO MATRIX AND OTHER MOLECULES SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID NUDE-MICE AB Microgravity has advantages for the cultivation of tissues with high fidelity; however, tissue formation requires cellular recognition and adhesion. We tested the hypothesis that simulated microgravity does not affect cell adhesion. Human colorectal carcinoma cells were cultured in the NASA Rotating Wall Vessel (RWV) under low shear stress with randomization of the gravity vector that simulates microgravity. After 6 - 7 days, cells were assayed for binding to various substrates and compared to cells grown in standard tissue culture flasks and static suspension cultures. The RWV cultures bound as well to basement membrane proteins and to CEA, an intercellular adhesion molecule, as control cultures did. Thus, microgravity does not alter epithelial cell adhesion and may be useful for tissue engineering. C1 NASA,LYNDON B JOHNSON SPACE CTR,DIV TECHNOL LIFE SCI,HOUSTON,TX 77058. RP JESSUP, JM (reprint author), NEW ENGLAND DEACONESS HOSP,DEPT SURG,CANC BIOL LAB,BOSTON,MA 02215, USA. FU NCI NIH HHS [CA42587] NR 8 TC 3 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 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 71 EP 76 DI 10.1016/0273-1177(94)90387-5 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00008 PM 11537961 ER PT S AU DUTCHER, FR HESS, EL HALSTEAD, TW AF DUTCHER, FR HESS, EL HALSTEAD, TW BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI PROGRESS IN PLANT RESEARCH IN-SPACE SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID FLIGHT; GROWTH; MICROGRAVITY; COSMOS-1887; CENOSIS; SEEDS AB Progress is reviewed of spaceflight research conducted with plants between 1987 and 1992. Numerous plant experiments have been performed on spacecraft and sounding rockets in the past five years by scientists of the US, the former Soviet Union, Europe, and other areas. The experiments are categorized into three areas: gravity sensing, transduction, and response; development and reproduction; and metabolism, photosynthesis, and transport. The results of these experiments continue to demonstrate that gravity and/or other factors of spaceflight affect plants at the organismal, cellular, subcellular, and molecular levels, resulting in changes in orientation, development, metabolism, and growth. The challenge now is to truly dissect the effects of gravity from those of other spaceflight factors and to identify the basic mechanisms underlying gravity's effects. C1 NASA HEADQUARTERS,WASHINGTON,DC 20546. RP DUTCHER, FR (reprint author), GEORGE WASHINGTON UNIV,WASHINGTON,DC 20006, USA. NR 96 TC 57 Z9 68 U1 1 U2 7 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 159 EP 171 DI 10.1016/0273-1177(94)90400-6 PG 13 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00021 PM 11537914 ER PT S AU NELSON, GA SCHUBERT, WW KAZARIANS, GA RICHARDS, GF AF NELSON, GA SCHUBERT, WW KAZARIANS, GA RICHARDS, GF BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI DEVELOPMENT AND CHROMOSOME MECHANICS IN NEMATODES - RESULTS FROM IML-1 SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID CAENORHABDITIS-ELEGANS; GENERATION AB A subset of the Caenorhabditis elegans nematodes flown aboard Biorack on IML-1 was analyzed for the fidelity of development and the mechanics of chromosomes at meiosis. To assess meiosis, mutant worms marked at two linked or unlinked loci were inoculated as heterozygous hermaphrodites and allowed to self fertilize. Mendelian segregation ratios and recombination frequency were measured for offspring produced at 1XG or in microgravity. To assess development, worms and embryos were fixed and stained with the DNA dye, DAPI, or antibodies specific for antigens expressed in germ cells, pharyngeal and body wall muscles, and gut cells. The distribution of cytoplasmic determinants, cell nuclei counts and positions were scored to assess symmetry relations and anatomical features. RP NELSON, GA (reprint author), CALTECH,JET PROP LAB,SPACE BIOL SCI GRP,M-S 89-2,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 8 TC 14 Z9 16 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 209 EP 214 DI 10.1016/0273-1177(94)90405-7 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00026 PM 11537919 ER PT S AU SPANGENBERG, DB JERNIGAN, T MCCOMBS, R LOWE, BT SAMPSON, M SLUSSER, J AF SPANGENBERG, DB JERNIGAN, T MCCOMBS, R LOWE, BT SAMPSON, M SLUSSER, J BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI DEVELOPMENT STUDIES OF AURELIA (JELLYFISH) EPHYRAE WHICH DEVELOPED DURING THE SLS-1 MISSION SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID METAMORPHOSIS AB Aurelia polyps (scyphistomae) and ephyrae were exposed to microgravity for nine days aboard the space shuttle during the SLS-1 mission. During strobilation, polyps segment transversely and each segment develops into an ephyra. Polyps were induced to strobilate at 28 degrees C, using iodine or thyroxine, at L(Launch)-48h, L-24h, and L+8h. Ephyrae developed in the groups tested in space and on Earth. The number of ephyrae formed per polyp was slightly higher in the L+8h groups as compared with those induced at L-24h and L-48h. On Earth, iodine is used by jellyfish to synthesize jellyfish-thyroxine (Jf T-4), needed for ephyra production. Since iodine-treated polyps strobilated and formed ephyrae in space, it appears that jellyfish can synthesize Jf-T-4 in space. Indeed, two groups of polyps not given inducer formed ephryae in space, presumably due to enhanced Jf-T-4 synthesis, utilization or accumulation. Some ephyrae that formed in space were also fixed in space on Mission Day (MD) 8; others were fixed post-flight. Examination of living ephyrae with the light microscope and fixed ones with the Scanning and Transmission Electron Microscopes revealed that those which developed in space were morphologically very similar to those which developed on Earth. Quantitation of arm numbers determined that there were no significant differences between space and Earth-developed ephyrae. Pulsing abnormalities, however, were found in greater numbers (18.3%) in space-developed ephyrae than in Earth-developed controls (2.9%). These abnormalities suggest abnormal development of the graviceptors, the neuromuscular system, or a defect in the integration between these systems in apparently microgravity-sensitive animals. C1 NASA,LYNDON B JOHNSON SPACE CTR,ASTRONAUT OFF,HOUSTON,TX 77058. RP SPANGENBERG, DB (reprint author), EASTERN VIRGINIA MED SCH,NORFOLK,VA 23501, USA. NR 12 TC 2 Z9 3 U1 0 U2 2 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 239 EP 247 DI 10.1016/0273-1177(94)90408-1 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00029 PM 11537923 ER PT S AU HALSTEAD, TW AF HALSTEAD, TW BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI AN OVERVIEW OF GRAVITY SENSING, PERCEPTION, AND SIGNAL-TRANSDUCTION IN ANIMALS AND PLANTS - INTRODUCTION SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH-SERIES LA English DT Editorial Material RP HALSTEAD, TW (reprint author), NASA HEADQUARTERS, DIV LIFE SCI, WASHINGTON, DC 20546 USA. NR 3 TC 2 Z9 5 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES-SERIES PY 1994 VL 14 IS 8 BP 315 EP 316 DI 10.1016/0273-1177(94)90417-0 PG 2 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00038 PM 11537933 ER PT S AU SPANGENBERG, DB JERNIGAN, T PHILPUT, C LOWE, B AF SPANGENBERG, DB JERNIGAN, T PHILPUT, C LOWE, B BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI GRAVICEPTOR DEVELOPMENT IN JELLYFISH EPHYRAE IN-SPACE AND ON EARTH SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID AURELIA AB Graviceptor (rhopalium) development in Aurelia aurita ephyrae which developed on Earth and in space during the nine-day NASA SLS-1 mission was compared. The space-developed ephyrae made graviceptors which were morphologically similar to those of their ground-based controls. Rhopalia of both groups developed statocysts with statoliths, ocelli, ciliated mechanoreceptor cells, and immature touch-plates with one type of hair cell. The number of rhopalia formed per arm of ephpae of both groups revealed no significant differences. The number of statoliths formed per rhopalium was statistically higher in ephyrae which were induced to form in space with iodine than in L(Launch)+8h controls. Statolith numbers were not significantly different between Earth-formed control ephyrae and those formed from polyps induced on Earth and then sent into space 24h and 48h later. Statolith loss from rhopalia was significantly enhanced in the space-maintained ephyrae in ASW as compared to their controls. Ephyrae formed through thyroxine treatment and those maintained in thyroxine in space had statolith numbers comparable to thyroxine-treated controls. Pulsing abnormalitities seen in some space-developed ephyrae suggest that some space-formed ephyrae may have developed abnormal rhopalia because normal rhopalia development and function is necessary for normal pulsing. C1 NASA,LYNDON B JOHNSON SPACE CTR,ASTRONAUT OFF,HOUSTON,TX 77058. USN HOSP,PORTSMOUTH,VA 23708. RP SPANGENBERG, DB (reprint author), EASTERN VIRGINIA MED SCH,DEPT PATHOL,NORFOLK,VA 23501, USA. NR 17 TC 5 Z9 6 U1 0 U2 4 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 317 EP 325 DI 10.1016/0273-1177(94)90418-9 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00039 PM 11537934 ER PT S AU COULTER, G LEWIS, L ATCHISON, D AF COULTER, G LEWIS, L ATCHISON, D BE Cogoli, A CogoliGreuter, M Gruener, R Sievers, A Ubbels, GA Halstead, TW Ross, MD Roux, SJ Oser, H Lujan, BF White, RJ TI NASA SPACE LIFE SCIENCES TRAINING-PROGRAM SO LIFE SCIENCES AND SPACE RESEARCH XXV (1): GRAVITATIONAL BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE AB The Space Life Sciences Training Program (SLSTP) is an intensive, six-week training program held every summer since 1985 at the Kennedy Space Center (KSC). A major goal of the SLSTP is to develop a cadre of qualified scientists and engineers to support future space life sciences and engineering challenges. Hand-picked, undergraduate college students participate in lectures, laboratory sessions, facility tours, and special projects: including work on actual Space Shuttle flight experiments and baseline data collection. At NASA Headquarters (HQ), the SLSTP is jointly sponsored by the Life Sciences Division and the Office of Equal Opportunity Programs: it has been very successful in attracting minority students and women to the fields of space science and engineering. In honor of the International Space Year(ISY), 17 international students participated in this summer's program. An SLSTP Symposium was held in Washington D.C., just prior to the World Space Congress. The Symposium attracted over 150 SLSTP graduates for a day of scientific discussions and briefings concerning educational and employment opportunities within NASA and the aerospace community. Future plans for the SLSTP include expansion to the Johnson Space Center in 1995. C1 LOCKHEED ENGN & SCI CO,WASHINGTON,DC 20024. RP COULTER, G (reprint author), NASA HEADQUARTERS,DIV LIFE SCI,WASHINGTON,DC 20546, USA. NR 2 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042485-6 J9 ADV SPACE RES PY 1994 VL 14 IS 8 BP 447 EP 449 DI 10.1016/0273-1177(94)90439-1 PG 3 WC Engineering, Aerospace; Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics; Geology; Meteorology & Atmospheric Sciences GA BA07Q UT WOS:A1994BA07Q00059 PM 11537955 ER PT S AU KINARD, W ONEAL, R WILSON, B JONES, J LEVINE, A CALLOWAY, R AF KINARD, W ONEAL, R WILSON, B JONES, J LEVINE, A CALLOWAY, R BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI OVERVIEW OF THE SPACE ENVIRONMENTAL-EFFECTS OBSERVED ON THE RETRIEVED LONG-DURATION EXPOSURE FACILITY (LDEF) SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The Long Duration Exposure Facility (LDEF), which encompassed 57 experiments with more than 10,000 test specimens, spent 69 months in low Earth orbit (LEG) before it was retrieved by the Space Shuttle in January 1990. Hundreds of LDEF investigators, after studying for over two years these retrieved test specimens and the onboard recorded data and systems hardware, have generated a unique first-hand view of the long term synergistic effects that the LEO environment can have on spacecraft. These studies have also contributed significantly toward more accurate models of the LEO radiation, meteoroid, manmade debris and atomic oxygen environments. This paper provides an overview of some of the many LDEF observations and the implications these can have on future spacecraft such as Space Station Freedom. C1 LOCKHEED ENGN & SCI CO,HAMPTON,VA 23681. WJ SCHAFER ASSOCIATES INC,HAMPTON,VA 23681. RP KINARD, W (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 10 TC 6 Z9 6 U1 1 U2 7 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 7 EP 16 DI 10.1016/0273-1177(94)90444-8 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00001 PM 11540010 ER PT S AU ARMSTRONG, TW COLBORN, BL HARMON, BA PARNELL, TA WATTS, JW BENTON, EV AF ARMSTRONG, TW COLBORN, BL HARMON, BA PARNELL, TA WATTS, JW BENTON, EV BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI COMPARISON OF MODEL PREDICTIONS WITH LDEF SATELLITE RADIATION MEASUREMENTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Some early results are summarized from a program under way to utilize LDEF satellite data for evaluating and improving current models of the space radiation environment in low Earth orbit. Reported here are predictions and comparisons with some of the LDEF dose and induced radioactivity data, which are used to check the accuracy of current models describing the magnitude and directionality of the trapped proton environment. Preliminary findings are that the environment models underestimate both dose and activation from trapped protons by a factor of about two, and the observed anisotropy is higher than predicted. C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. UNIV SAN FRANCISCO,SAN FRANCISCO,CA 94117. RP ARMSTRONG, TW (reprint author), SCI APPLICAT INT CORP,PROSPECT,TN, USA. NR 15 TC 6 Z9 6 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 17 EP 20 DI 10.1016/0273-1177(94)90445-6 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00002 PM 11539949 ER PT S AU MEI, M QIU, Y HE, Y BUCKER, H YANG, CH AF MEI, M QIU, Y HE, Y BUCKER, H YANG, CH BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI MUTATIONAL EFFECTS OF SPACE-FLIGHT ON ZEA-MAYS SEEDS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The growth and development of more than 500 Zea mays seeds flown on LDEF were studied. Somatic mutations, including white-yellow stripes on leaves, dwarfing, change of leaf sheath color or seedling color were observed in plants developed from these seeds. When the frequency of white-yellow formation was used as the endpoint and compared with data from ground based studies, the dose to which maize seeds might be exposed during the flight was estimated to be equivalent to 635 cGy of gamma rays. Seeds from one particular holder gave a high mutation frequency and a wide mutation spectrum. White-yellow stripes on leaves were also found in some of the inbred progenies from plants displayed somatic mutation. Electron microscopy studies showed that the damage of chroloplast development in the white-yellow stripe on leaves was similar between seeds flown on LDEF and that irradiated by accelerated heavy ions on ground. C1 INST AEROSP MED,COLOGNE,GERMANY. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP MEI, M (reprint author), S CHINA AGR UNIV,CANTON,PEOPLES R CHINA. NR 5 TC 14 Z9 29 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 33 EP 39 DI 10.1016/0273-1177(94)90447-2 PG 7 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00004 PM 11539968 ER PT S AU BADHWAR, GD KONRADI, A BRABY, LA ATWELL, W CUCINOTTA, FA AF BADHWAR, GD KONRADI, A BRABY, LA ATWELL, W CUCINOTTA, FA BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI MEASUREMENTS OF TRAPPED PROTONS AND COSMIC-RAYS FROM RECENT SHUTTLE FLIGHTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID RADIATION AB We have flown two new charged particle detectors in five recent Shuttle flights. In this paper we report on the dose rate, equivalent dose rate, and radiation quality factor for trapped protons and cosmic radiation separately. A comparison of the integral linear energy transfer (LET) spectra with recent transport code calculations show significantly disagreement. Using the calculated dose rate from the omni-directional AP8MAX model with IGRF reference magnetic field epoch 1970, and observed dose rate as a function of (averaged over all geographic latitude) and longitude, we have determined the westward drift of the South Atlantic anomaly. We have also studied the east-west effect, and observed a 'second' radiation belt. A comparison of the galactic cosmic radiation lineal energy transfer spectra with model calculations shows disagreement comparable to those of the trapped protons. C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. ROCKWELL INT INC, HOUSTON, TX 77058 USA. NASA, LANGLEY RES CTR, HAMPTON, VA 23665 USA. RP BADHWAR, GD (reprint author), NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. NR 17 TC 16 Z9 16 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 67 EP 72 DI 10.1016/0273-1177(94)90452-9 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00009 PM 11540006 ER PT S AU NELSON, GA SCHUBERT, WW KAZARIANS, GA RICHARDS, GF BENTON, EV BENTON, ER HENKE, R AF NELSON, GA SCHUBERT, WW KAZARIANS, GA RICHARDS, GF BENTON, EV BENTON, ER HENKE, R BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI RADIATION EFFECTS IN NEMATODES - RESULTS FROM IML-1 EXPERIMENTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID CAENORHABDITIS-ELEGANS; MUTAGENESIS AB The nematode Caenorhabditis elegans was exposed to natural space radiation using the ESA Biorack facility aboard Spacelab on International Microgravity Laboratory 1, STS-42. For the major experimental objective dormant animals were suspended in buffer or on agar or immobilized next to CR-39 plastic nuclear track detectors to correlate fluence of HZE particles with genetic events. This configuration was used to isolate mutations in a set of 350 essential genes as well as in the unc-22 structural gene. From flight samples 13 mutants in the unc-22 gene were isolated along with 53 lethal mutations from autosomal regions balanced by a translocation eT1(III;V). Preliminary analysis suggests that mutants from worms correlated with specific cosmic ray tracks may have a higher proportion of rearrangements than those isolated from tube cultures on a randomly sampled basis. Right sample mutation rate was approximately 8-fold higher than ground controls which exhibited laboratory spontaneous frequencies. C1 UNIV SAN FRANCISCO,DEPT PHYS,SAN FRANCISCO,CA 94117. RP NELSON, GA (reprint author), CALTECH,JET PROP LAB,SPACE BIOL SCI GRP,M-S 89-2,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 10 TC 16 Z9 20 U1 0 U2 4 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 87 EP 91 DI 10.1016/0273-1177(94)90455-3 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00012 PM 11540032 ER PT S AU YANG, CH CRAISE, LM AF YANG, CH CRAISE, LM BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI DEVELOPMENT OF HUMAN EPITHELIAL-CELL SYSTEMS FOR RADIATION RISK ASSESSMENT SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH-SERIES LA English DT Article ID ONCOGENIC TRANSFORMATION; NEUTRONS AB The most important health effect of space radiation for astronauts is cancer induction. For radiation risk assessment, an understanding of carcinogenic effect of heavy ions in human cells is most essential. In our laboratory, we have successfully developed a human mammary epithelial cell system for studying the neoplastic transformation in vitro. Growth variants were obtained from heavy ion irradiated immortal mammary cell line. These cloned growth variants can grow in regular tissue culture media and maintain anchorage dependent growth and density inhibition property. Upon further irradiation with high-LET radiation, transformed foci were found. Experimental results from these studies suggest that multiexposure of radiation is required to induce neoplastic transformation of human epithelial cells. This multihits requirement may be due to high genomic stability of human cells. These growth variants can be useful model systems for space flight experiments to determine the carcinogenic effect of space radiation in human epithelial cells. C1 UNIV CALIF BERKELEY, LAWRENCE BERKELEY LAB, BERKELEY, CA 94720 USA. RP YANG, CH (reprint author), NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. NR 14 TC 15 Z9 15 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES-SERIES PY 1994 VL 14 IS 10 BP 115 EP 120 DI 10.1016/0273-1177(94)90459-6 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00016 PM 11538024 ER PT S AU CUCINOTTA, FA WILSON, JW SHINN, JL ATWELL, W FONG, M AF CUCINOTTA, FA WILSON, JW SHINN, JL ATWELL, W FONG, M BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI DOSE-RATE AND REPAIR EFFECTS ON CELL-DAMAGE IN EARTH ORBIT SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID RADIATION AB Radiobiology experiments performed in space will encounter continuous exposures to the cosmic rays and fractionated exposures to trapped protons which accumulate to several hundred dose fractions in a few weeks. Using models of track structure and cellular kinetics combined with models of the radiation environment and radiation transport, we consider calculations of damage rates for cell cultures. Analysis of the role of repair mechanisms for space exposures for the endpoints of survival and transformation is emphasized. C1 ROCKWELL INT CORP,HOUSTON,TX 77058. NASA,JET PROP LAB,PASADENA,CA 91109. RP CUCINOTTA, FA (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 11 TC 1 Z9 1 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 121 EP 124 DI 10.1016/0273-1177(94)90460-X PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00017 PM 11538025 ER PT S AU SCHIMMERLING, W SULZMAN, FM AF SCHIMMERLING, W SULZMAN, FM BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI THE NASA SPACE RADIATION HEALTH-PROGRAM SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS RP SCHIMMERLING, W (reprint author), NASA,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 133 EP 137 DI 10.1016/0273-1177(94)90462-6 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00019 PM 11539944 ER PT S AU YANG, TC TODD, P AF YANG, TC TODD, P BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI ROLE OF HEAVY-ION RADIATION IN MUTATION AND EVOLUTION OF LIFE - INTRODUCTION SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Editorial Material CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS C1 UNIV COLORADO,DEPT CHEM ENGN,BOULDER,CO 80309. RP YANG, TC (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 301 EP 303 PG 3 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00038 ER PT S AU CHEN, DJ TSUBOI, K NGUYEN, T YANG, TC AF CHEN, DJ TSUBOI, K NGUYEN, T YANG, TC BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI CHARGED-PARTICLE MUTAGENESIS .2. MUTAGENIC EFFECTS OF HIGH-ENERGY CHARGED-PARTICLES IN NORMAL HUMAN FIBROBLASTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID ACCELERATED HEAVY-IONS; MAMMALIAN-CELLS; MUTATION-INDUCTION; LOCUS SPECIFICITY; ALPHA-PARTICLES; INACTIVATION; RADIATION; BEAMS AB The biological effects of high LET charged particles ate a subject of great concern with regard to the prediction of radiation risk in space. In this report, mutagenic effects of high LET charged particles are quantitatively measured using primary cultures of human skin fibroblasts, and the spectrum of induced mutations are analyzed. The LET of the charged particles ranged from 25 KeV/mu m to 975 KeV/mu m with particle energy (on the cells) between 94-603 MeV/u. The X-chromosome linked hypoxanthine guanine phosphoribosyl transferase (hprt)locus was used as the target gene. Exposure to these high LET charged particles resulted in exponential survival curves; whereas, mutation induction was fitted by a linear model. The Relative Biological Effect (RBE) for cell-killing ranged from 3.73 to 1.25, while that for mutant induction ranged from 5.74 to 0.48. Maximum RBE values were obtained at the LET of 150 keV/mu m. The inactivation cross-section (alpha i) and the action cross-section for mutant induction (am) ranged from 2.2 to 92.0 mu m(2) and 0.09 to 5.56 x 10(-3) mu m(2), respectively. The maximum values were obtained bp Fe-56 with an LET of 200 keV/mu m. The mutagenicity (alpha m/alpha i) ranged from 2.05 to 7.99 x 10(-5) with the maximum value at 150 keV/mu m. Furthermore, molecular analysis of mutants induced by charged particles indicates that higher LET beams are more likely to cause larger deletions in the hprt locus. C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP CHEN, DJ (reprint author), LOS ALAMOS NATL LAB,DIV LIFE SCI,LOS ALAMOS,NM 87545, USA. NR 18 TC 20 Z9 20 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 347 EP 354 DI 10.1016/0273-1177(94)90487-1 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00043 PM 11539970 ER PT S AU MEI, M DENG, H LU, Y ZHUANG, C LIU, Z QIU, Q QIU, Y YANG, TC AF MEI, M DENG, H LU, Y ZHUANG, C LIU, Z QIU, Q QIU, Y YANG, TC BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI MUTAGENIC EFFECTS OF HEAVY-ION RADIATION IN PLANTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID MOLECULAR CHARACTERIZATION; IONIZING-RADIATION; MAMMALIAN-CELLS; HAMSTER-CELLS; MUTANTS; INACTIVATION; PARTICLES; DELETIONS; MUTATION; BEAMS AB Genetic and developmental effects of heavy ions in maize and rice were investigated. Heavy particles with various charges and energies were accelerated at the BEVALAC. The frequency of occurence of white-yellow stripes on leaves of plants developed from irradiated maize seeds increased linearly with dose, and high-LET heavy charged particles, e.g., neon, argon, and iron, were 2-12 times as effective as gamma rays in inducing this type of mutation. The effectiveness of high-LET heavy ion in (1) inhibiting rice seedling growth, (2) reducing plant fertility, (3) inducing chromosome aberration and micronuclei in root tip cells and pollen mother cells of the first generation plants developed from exposed seeds, and (4) inducing mutation in the second generation, were greater than that of low-LET gamma rays. All effects observed were dose-dependent; however, there appeared to be an optimal range of doses for inducing certain types of mutation, for example, for argon ions (400 MeV/u) at 90-100 Gy, several valuable mutant lines with favorable characters, such as semidwarf, early maturity and high yield ability, were obtained. Experimental results suggest that the potential application of heavy ions in crop improvement is promising. RFLP analysis of two semidwarf mutants induced by argon particles revealed that large DNA alterations might be involved in these mutants. C1 ZHONGSHAN UNIV,CANTON,PEOPLES R CHINA. NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP MEI, M (reprint author), S CHINA AGR UNIV,CANTON,PEOPLES R CHINA. NR 23 TC 45 Z9 56 U1 1 U2 6 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 363 EP 372 DI 10.1016/0273-1177(94)90489-8 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00045 PM 11539972 ER PT S AU YANG, CH CRAISE, LM DURANTE, M MEI, M AF YANG, CH CRAISE, LM DURANTE, M MEI, M BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI HEAVY-ION-INDUCED GENETIC CHANGES AND EVOLUTION PROCESSES SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID PARTICLES; RESPONSES AB On Moon and Mars, there will be more galactic cosmic rays and higher radiation doses than on earth. Our experimental studies showed that heavy ion radiation can effectively cause mutation and chromosome aberrations and that high-LET heavy-ion induced mutants can be irreversible. Chromosome translocations and deletions are common in cells irradiated by heavy particles, and ionizing radiations are effective in causing hyperploidy. The importance of the genetic changes in the evolution of life is an interesting question. Through evolution, there is an increase of DNA content in cells from lower forms of life to higher organisms. The DNA content, however, reached a plateau in vertebrates. By increasing DNA content, there can be an increase of information in the cell. For a given DNA content, the quality of information can be changed by rearranging the DNA. Because radiation can cause hyperploidy, an increase of DNA content in cells, and can induce DNA rearrangement, it is likely that the evolution of life on Mars will be effected by its radiation environment. A simple analysis shows that the radiation level on Mars may cause a mutation frequency comparable to that of the spontaneous mutation rate on Earth. To the extent that mutation plays a role in adaptation, radiation alone on Mars may thus provide sufficient mutation for the evolution of life. C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. UNIV NAPLES,DEPT PHYS,NAPLES,ITALY. S CHINA AGR UNIV,CANTON,PEOPLES R CHINA. RP YANG, CH (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. RI Durante, Marco/K-1315-2014; OI Durante, Marco/0000-0002-4615-553X NR 17 TC 5 Z9 6 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 373 EP 382 DI 10.1016/0273-1177(94)90490-1 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00046 PM 11538027 ER PT S AU PAGE, DE SMITH, EJ WENZEL, KP AF PAGE, DE SMITH, EJ WENZEL, KP BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI ULYSSES CHARGED-PARTICLE MEASUREMENTS BETWEEN 1-AU AND 5-AU FROM THE SUN SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Proton fluxes obtained by two instruments carried on the ESA/NASA Ulysses spacecraft are reported for the period from launch in October 1990 till Jupiter encounter in February 1992. Proton energy ranges are 24-59, 71-99, 130-320, 320-2100 and > 2100 MeV. The Sun was very active during this period, the events of March 1991 being some of the largest of the solar cycle. The relationship between events on the Sun and the observed proton flux is discussed. C1 EUROPEAN SPACE AGCY,EUROPEAN SPACE RES & TECHNOL CTR,DEPT SPACE SCI,2200 AG NOORDWIJK,NETHERLANDS. RP PAGE, DE (reprint author), CALTECH,JET PROP LAB,ESA,4800 OAK GROVE DR,MS 264-318,PASADENA,CA 91109, USA. NR 1 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 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 611 EP 618 DI 10.1016/0273-1177(94)90516-9 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00072 PM 11539999 ER PT S AU NEALY, JE WILSON, JW SHEA, MA SMART, DF AF NEALY, JE WILSON, JW SHEA, MA SMART, DF BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI PROTON FLARE AND MAGNETIC STORM EFFECT IN THE VICINITY OF THE EARTH SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB We have developed a model and associated computational procedure for estimating energetic proton exposure during a major solar proton event that occur in combination with a large magnetic storm. Transmission functions for solar protons are computed using geomagnetic vertical cutoff data for quiescent and disturbed conditions. Predicted exposures in low altitude polar orbit are found to be orders of magnitude greater for severe magnetic storm conditions than are corresponding exposures in the absence of major disturbances. We examine the response scenario for the events of November 1960 as an example. C1 PHILLIPS LAB,GEOPHYS DIRECTORATE,DIV SPACE PHYS,BEDFORD,MA 01731. RP NEALY, JE (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 12 TC 3 Z9 3 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 655 EP 660 DI 10.1016/0273-1177(94)90522-3 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00078 PM 11540005 ER PT S AU CUCINOTTA, FA TOWNSEND, LW WILSON, JW GOLIGHTLY, MJ WEYLAND, M AF CUCINOTTA, FA TOWNSEND, LW WILSON, JW GOLIGHTLY, MJ WEYLAND, M BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI ANALYSIS OF RADIATION RISK FROM ALPHA-PARTICLE COMPONENT OF SOLAR PARTICLE EVENTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The solar particle events (SPE) will contain a primary alpha particle component, representing a possible increase in the potential risk to astronauts during an SPE over the often studied proton component. We discuss the physical interactions of alpha particles important in describing the transport of these particles through spacecraft and body shielding. Models of light ion reactions are presented and their effects on energy and linear energy transfer (LET) spectra in shielding discussed. We present predictions of particle spectra, dose, and dose equivalent in organs of interest for SPE spectra typical of those occurring in recent solar cycles. The large events of solar cycle 19 are found to have substantial increase in biological risk from alpha particles, inlcuding a large increase in secondary neutron production from alpha particle breakup. C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. ROCKWELL INT CORP,HOUSTON,TX 77058. RP CUCINOTTA, FA (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 25 TC 7 Z9 7 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 661 EP 670 DI 10.1016/0273-1177(94)90523-1 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00079 PM 11538031 ER PT S AU TOWNSEND, LW CUCINOTTA, FA WILSON, JW BAGGA, R AF TOWNSEND, LW CUCINOTTA, FA WILSON, JW BAGGA, R BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI ESTIMATES OF HZE PARTICLE CONTRIBUTIONS TO SPE RADIATION EXPOSURES ON INTERPLANETARY MISSIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Estimates of radiation doses resulting from possible HZE (high energy heavy ion) components of solar particle events (SPEs) are presented for crews of manned interplanetary missions. The calculations assume a model spectrum obtained by folding measured solar flare HZE particle abundances with the measured energy spectra of SPE alpha particles. These hypothetical spectra are then transported through aluminum spacecraft shielding. The results, presented as estimates of absorbed dose and dose equivalent, indicate that HZE components by themselves are not a major concern for crew protection but should be included in any overall risk assessment. The predictions are found to be sensitive to the assumed spectral hardness parameters. C1 OLD DOMINION UNIV,DEPT PHYS,NORFOLK,VA 23529. RP TOWNSEND, LW (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 9 TC 3 Z9 4 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 671 EP 674 DI 10.1016/0273-1177(94)90524-X PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00080 PM 11538032 ER PT S AU TRAINOR, JH AF TRAINOR, JH BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI INSTRUMENT AND SPACECRAFT FAULTS ASSOCIATED WITH NUCLEAR RADIATION IN-SPACE SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB A review is given which surveys the variety of faults and failures which have occurred in space due both to the effects of single, energetic nuclear particles, as well as effects due to the accumulated ionizing dose or the fluence of nuclear particles. The review covers a variety of problems with sensors, electronics, instruments and spacecraft from several countries. RP TRAINOR, JH (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 13 TC 4 Z9 4 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 685 EP 693 DI 10.1016/0273-1177(94)90527-4 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00083 PM 11540008 ER PT S AU TOWNSEND, LW CURTIS, SB AF TOWNSEND, LW CURTIS, SB BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI PROCEEDINGS OF THE TOPICAL MEETING OF THE COSPAR INTERDISCIPLINARY-SCIENTIFIC-COMMISSION-F (MEETING F2) OF THE COSPAR 29TH PLENARY MEETING HELD IN WASHINGTON, DC, USA 28 AUGUST 5 SEPTEMBER, 1992 - INTRODUCTION SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Editorial Material CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS C1 UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV LIFE SCI,BERKELEY,CA 94720. RP TOWNSEND, LW (reprint author), NASA,LANGLEY RES CTR,DIV SPACE SYST,HAMPTON,VA 23681, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 733 EP 735 DI 10.1016/0273-1177(94)90535-5 PG 3 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00091 ER PT S AU BADHWAR, GD ONEILL, PM AF BADHWAR, GD ONEILL, PM BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI LONG-TERM MODULATION OF GALACTIC COSMIC-RADIATION AND ITS MODEL FOR SPACE EXPLORATION SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID SOLAR MODULATION; SPECTRA; HELIUM; RAYS; HYDROGEN; PROTONS; DRIFT; CYCLE AB As the human exploration of space has received new attention in the United States, studies find that exposure to space radiation could adversely impact the mission design. Galactic Cosmic Radiation (GCR), with its very wide range of charges and energies, is particularly important for a mission to Mars, because it imposes a stiff mass penalty for spacecraft shielding. Dose equivalent versus shielding thickness calculations, show a rapid initial drop in exposure with thickness, but an asymptotic behaviour at a higher shielding thickness. Uncertainties in the radiobiology are largely unknown. For a fixed radiation risk, this leads to large uncertainties in shielding thickness for small uncertainties in estimated dose. In this paper we investigate the application of steady-state, spherically-symmetric diffusion-convection theory of solar modulation to individual measurements of differential energy spectra from 1954 to 1989 in order to estimate the diffusion coefficient, kappa(r,t), as a function of time. We have correlated the diffusion coefficient to the Climax neutron monitor rates and show that, if the diffusion coefficient can be separated into independent functions of space and time: kappa(r,t)=K(t)kappa(0) beta P kappa(1)(r), where beta is the particle velocity and P the rigidity, then (i) The time dependent quantity l/K(t), which is proportional to the deceleration potential, phi(r,t), is linearly related to the Climax neutron monitor counting rate. (ii) The coefficients obtained from hydrogen or helium intensity measurements are the same. (iii) There are different correlation functions for odd and even solar cycles. (iv) The correlation function for the Climax neutron monitor counting rate for given time, t, can be used to mean deceleration parameter phi(t) to within +/- 15% with 90% confidence. We have shown that kappa(r,t) determined from hydrogen and/or helium data, can be used to fit the oxygen and iron differential energy spectra with a root mean square error of about +/- 10%, and essentially independent of the particle charge of energy. We have also examined the ion chamber and C-14 measurements which allow the analysis to be extended from the year 1906 to 1990. Using this model we have defined reference GCR spectra at solar minimum and solar maximum. These can be used for space exploration studies and provide a quantitative estimate of the error in dose due to changes in GCR intensities. RP BADHWAR, GD (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 87 TC 25 Z9 25 U1 0 U2 4 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 749 EP 757 DI 10.1016/0273-1177(94)90537-1 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00093 PM 11540020 ER PT S AU GUZIK, TG ALBERGO, S CHEN, CX COSTA, S CRAWFORD, HJ ENGELAGE, J FERRANDO, P FLORES, I GREINER, L JONES, FC KNOTT, CN KO, S LINDSTROM, PJ MAZOTTA, J MITCHELL, JW ROMANSKI, J POTENZA, R SOUTOUL, A TESTARD, O TULL, CE TUVE, C WADDINGTON, CJ WEBBER, WR WEFEL, JP ZHANG, X AF GUZIK, TG ALBERGO, S CHEN, CX COSTA, S CRAWFORD, HJ ENGELAGE, J FERRANDO, P FLORES, I GREINER, L JONES, FC KNOTT, CN KO, S LINDSTROM, PJ MAZOTTA, J MITCHELL, JW ROMANSKI, J POTENZA, R SOUTOUL, A TESTARD, O TULL, CE TUVE, C WADDINGTON, CJ WEBBER, WR WEFEL, JP ZHANG, X BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI A PROGRAM TO MEASURE NEW ENERGETIC PARTICLE NUCLEAR-INTERACTION CROSS-SECTIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The Transport Collaboration, consisting of researchers from institutions in France, Germany, Italy and the USA, has established a program to make new measurements of nuclear interaction cross sections for heavy projectiles (Z greater than or equal to 2) in targets of liquid H2, He and heavier materials. Such cross sections directly affect calculations of galactic and solar cosmic ray transport through matter and are needed for accurate radiation hazard assessment. To date, the collaboration has obtained data using the LBL Bevalac HISS facility with 20 projectiles from He-4 to Ni-58 in the energy range 393-910 MeV/nucleon. Preliminary results from the analysis of these data are presented here and compared to other measurements and to cross section prediction formulae. C1 UNIV CATANIA,DIPARTMENTO FIS,I-95129 CATANIA,ITALY. UNIV CALIF BERKELEY,SPACE SCI LAB,BERKELEY,CA 94720. CENS,SERV ASTROPHYS,F-91191 GIF SUR YVETTE,FRANCE. UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. UNIV MINNESOTA,TATE LAB PHYS,MINNEAPOLIS,MN 55455. NEW MEXICO STATE UNIV,DEPT ASTRON,LAS CRUCES,NM 88003. RP GUZIK, TG (reprint author), LOUISIANA STATE UNIV,DEPT PHYS & ASTRON,BATON ROUGE,LA 70808, USA. RI TUVE', Cristina/P-3933-2015 OI TUVE', Cristina/0000-0003-0739-3153 NR 8 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 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 825 EP 830 DI 10.1016/0273-1177(94)90547-9 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00103 PM 11540031 ER PT S AU WILSON, JW TOWNSEND, LW SHINN, JL CUCINOTTA, FA COSTEN, RC BADAVI, FF LAMKIN, SL AF WILSON, JW TOWNSEND, LW SHINN, JL CUCINOTTA, FA COSTEN, RC BADAVI, FF LAMKIN, SL BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI GALACTIC COSMIC-RAY TRANSPORT METHODS - PAST, PRESENT, AND FUTURE SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The development of the theory of high charge and energy (HZE) ion transport is reviewed. The basic solution behavior and approximation techniques will be described. An overview of the HZE transport codes currently available at the Langley Research Center will be given. The near term goal of the Langley program is to produce a complete set of one-dimensional transport codes. The ultimate goal is to produce a set of complete three-dimensional codes which have been validated in the laboratory and can be applied in the engineering design environment. Recent progress toward completing these goals is discussed. C1 CHRISTOPHER NEWPORT COLL,NEWPORT NEWS,VA 23601. OLD DOMINION UNIV,NORFOLK,VA 23508. RP WILSON, JW (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 31 TC 21 Z9 22 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 841 EP 852 DI 10.1016/0273-1177(94)90549-5 PG 12 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00105 PM 11538035 ER PT S AU TOWNSEND, LW CUCINOTTA, FA WILSON, JW SHINN, JL BADHWAR, G AF TOWNSEND, LW CUCINOTTA, FA WILSON, JW SHINN, JL BADHWAR, G BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI SOLAR MODULATION AND NUCLEAR FRAGMENTATION EFFECTS IN GALACTIC COSMIC-RAY TRANSPORT THROUGH SHIELDING SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Crews of manned interplanetary missions may accumulate significant radiation exposures from the galactic cosmic ray (GCR) environment in space. Estimates of how these dose levels are affected by the assumed temporal and spatial variations in the composition of the GCR environment, and by the effects of the spacecraft and body self-shielding on the transported radiation fields are presented. In this work, the physical processes through which shielding alters the transported radiation fields are described. We then present estimates of the effects on model calculations of(l) nuclear fragmentation model uncertainties, (2) solar modulation, (3) variations between solar cycles, and (4) proposed changes to the quality factors which relate dose equivalent to absorbed dose. C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP TOWNSEND, LW (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 16 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 853 EP 861 DI 10.1016/0273-1177(94)90550-9 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00106 PM 11538036 ER PT S AU SHINN, JL NEALY, JE TOWNSEND, LW WILSON, JW WOOD, JS AF SHINN, JL NEALY, JE TOWNSEND, LW WILSON, JW WOOD, JS BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI GALACTIC COSMIC-RAY RADIATION-LEVELS IN SPACECRAFT ON INTERPLANETARY MISSIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Using the Langley Research Center galactic cosmic ray (GCR) transport computer code (HZETRN) and the computerized anatomical man (CAM) model, crew radiation levels inside manned spacecraft on interplanetary missions are estimated. These radiation-level estimates include particle fluxes, LET (linear energy transfer) spectra, absorbed dose, and dose equivalent within various organs of interest in GCR protection studies. Changes in these radiation levels resulting from the use of various different types of shield materials are presented. C1 FLIGHT MECH & CONTROL INC,HAMPTON,VA 23669. RP SHINN, JL (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 12 TC 7 Z9 7 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 863 EP 871 DI 10.1016/0273-1177(94)90551-7 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00107 PM 11538037 ER PT S AU KONRADI, A BADHWAR, GD BRABY, LA AF KONRADI, A BADHWAR, GD BRABY, LA BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI RECENT SPACE-SHUTTLE OBSERVATIONS OF THE SOUTH-ATLANTIC ANOMALY AND THE RADIATION BELT MODELS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Active instruments consisting of a tissue equivalent proportional counter (TEPC) and a proton and heavy ion detector (PHIDE) have been carried on a number of Space Shuttle flights. These instruments have allowed us to map out parts of the South Atlantic Particle Anomaly (SAA) and to compare some of its features with predictions of the AP-8 energetic proton flux models. We have observed that consistent with the generally observed westward drift of the surface features of the terrestrial magnetic field the SAA has moved west by about 6.9 degrees longitude between the epoch year 1970 of the AP-8 solar maximum model and the Space Shuttle observations made twenty years later. However, calculations indicate that except for relatively brief periods following very large magnetic storms the SAA seems to occupy the same position in L-space as in 1970. After the great storm of 24 March 1991 reconfiguration of the inner radiation belt and/or proton injection into the inner belt, a second energetic proton belt was observed to form at L similar or equal to 2. As confirmed by a subsequent flight observations, this belt was shown to persist at least for six months. Our measurements also indicate an upward shift in the L location of the primary belt from L=1.4 to L=1.5. In addition we confirm through direct real time observations the existence and the approximate magnitude of the East-West effect. C1 PACIFIC NW LAB, RICHLAND, WA 99352 USA. RP KONRADI, A (reprint author), NASA, LYNDON B JOHNSON SPACE CTR, HOUSTON, TX 77058 USA. NR 12 TC 16 Z9 16 U1 1 U2 3 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 911 EP 921 DI 10.1016/0273-1177(94)90557-6 PG 11 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00112 PM 11540035 ER PT S AU GOLIGHTLY, MJ HARDY, AC HARDY, K AF GOLIGHTLY, MJ HARDY, AC HARDY, K BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI RESULTS OF TIME-RESOLVED RADIATION EXPOSURE MEASUREMENTS MADE DURING US SHUTTLE MISSIONS WITH A TISSUE-EQUIVALENT PROPORTIONAL COUNTER SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Time-resolved radiation exposure measurements inside the crew compartment have been made during recent Shuttle missions with the USAF Radiation Monitoring Equipment-m (RME-III), a portable four-channel tissue equivalent proportional counter. Results from the first six missions are presented and discussed. The missions had orbital inclinations ranging from 28.5 degrees to 57 degrees, and altitudes from 200-600 km. Dose equivalent rates ranged from 40-5300 mu Sv/dy. The RME-III measurements are in good agreement with other dosimetry measurements made aboard the vehicle. Measurements indicate that medium- and high-LET particles contribute less than 2% of the particle fluence for all missions, but up to 50% of the dose equivalent, depending on the spacecraft's altitude and orbital inclination. Iso-dose rate contours have been developed from measurements made during the STS-28 mission. The drift rate of the South Atlantic Anomaly (SAA) is estimated to be 0.49 degrees W/yr and 0.12 degrees N/yr. The calculated trapped proton and Galactic Cosmic Radiation (GCR) dose for the STS-28 mission were significantly lower than the measured values. C1 ARMSTRONG LAB,BROOKS AFB,TX 78235. RP GOLIGHTLY, MJ (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 10 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 923 EP 926 DI 10.1016/0273-1177(94)90558-4 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00113 PM 11540036 ER PT S AU MCNULTY, PJ STASSINOPOULOS, EI AF MCNULTY, PJ STASSINOPOULOS, EI BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI UNCERTAINTIES IN RADIATION EFFECT PREDICTIONS FOR THE NATURAL RADIATION ENVIRONMENTS OF SPACE SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID SEU AB Future manned missions beyond low earth orbit require accurate predictions of the risk to astronauts and to critical systems from exposure to ionizing radiation. For low-level exposures, the hazards are dominated by rare single-event phenomena where individual cosmic-ray particles or spallation reactions result in potentially catastrophic changes in critical components. Examples might be a biological lesion leading to cancer in an astronaut or a memory upset leading to an undesired rocket firing. The risks of such events appears to depend on the amount of energy deposited within critical sensitive volumes of biological cells and microelectronic components. The critical environmental information needed to estimate the risks posed by the natural space environments, including solar flares, is the number of times more than a threshold amount of energy for an event will be deposited in the critical microvolumes. These predictions are complicated by uncertainties in the natural environments, particularly the composition of flares, and by the effects of shielding. Microdosimetric data for large numbers of orbits are needed to improve the environmental models and to test the transport codes used to predict event rates. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP MCNULTY, PJ (reprint author), CLEMSON UNIV,DEPT PHYS & ASTRON,CLEMSON,SC 29634, USA. NR 20 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 947 EP 957 DI 10.1016/0273-1177(94)90561-4 PG 11 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00116 PM 11540040 ER PT S AU MORRISON, DR AF MORRISON, DR BE Horneck, G Bucker, H Cox, A Todd, P Yang, TC Worbul, BV Donlon, M Atwell, W Shea, MA Smart, DF Fry, RJM Townsend, LW Curtis, SB Swenberg, CE TI CELLULAR-CHANGES IN MICROGRAVITY AND THE DESIGN OF SPACE RADIATION EXPERIMENTS SO LIFE SCIENCES AND SPACE RESEARCH XXV(2): RADIATION BIOLOGY SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID HEAVY-IONS; CELLS; RESPONSES; FLIGHT AB Cell metabolism, secretion and cell-cell interactions can be altered during space flight. Early radiobiology experiments have demonstrated synergistic effects of radiation and microgravity as indicated by increased mutagenesis, increased chromosome aberrations, inhibited development, and retarded growth. Microgravity-induced changes in immune cell functions include reduced blastogenesis and cell-mediated, delayed-type hypersensitivity responses, increased cytokine secretions, but inhibited cytotoxic effects and macrophage differentiation. These effects are important because of the high radiosensitivity of immune cells. It is difficult to compare ground studies with space radiation biology experiments because of the complexity of the space radiation environment, types of radiation damage and repair mechanisms. Altered intracellular functions and molecular mechanisms must be considered in the design and interpretation of space radiation experiments. Critical steps in radiocarcinogenesis could be affected. New cell systems and hardware are needed to determine the biological effectiveness of the low dose rate, isotropic, multispectral space radiation and the potential usefulness of radioprotectants during space flight. RP MORRISON, DR (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,BIOMED OPERAT & RES BRANCH,SD4,HOUSTON,TX 77058, USA. NR 42 TC 8 Z9 8 U1 0 U2 2 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042487-2 J9 ADV SPACE RES PY 1994 VL 14 IS 10 BP 1005 EP 1019 DI 10.1016/0273-1177(94)90567-3 PG 15 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences; Radiology, Nuclear Medicine & Medical Imaging GA BA49P UT WOS:A1994BA49P00122 PM 11539937 ER PT S AU DRESCHEL, TW BROWN, CS PIASTUCH, WC HINKLE, CR KNOTT, WM AF DRESCHEL, TW BROWN, CS PIASTUCH, WC HINKLE, CR KNOTT, WM BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI POROUS TUBE PLANT NUTRIENT DELIVERY SYSTEM-DEVELOPMENT - A DEVICE FOR NUTRIENT DELIVERY IN MICROGRAVITY SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID WATER AB The Porous Tube Plant Nutrient Delivery System or PTPNDS (U.S. Patent #4,926,585) has been under development for the past six years with the goal of providing a means for culturing plants in microgravity, specifically providing water and nutrients to the roots. Direct applications of the PTPNDS include plant space biology investigations on the Space Shuttle and plant research for life support in Space Station Freedom. In the past, we investigated various configurations, the suitability of different porous materials, and the effects of pressure and pore size on plant growth. Current work is focused on characterizing the physical operation of the system, examining the effects of solution aeration, and developing prototype configurations for the Plant Growth Unit (PGU), the flight system for the Shuttle mid-deck. Future developments will involve testing on KC-135 parabolic flights, the design of flight hardware and testing aboard the Space Shuttle. C1 NASA,KENNEDY SPACE CTR,FL 32899. RP DRESCHEL, TW (reprint author), BIONET CORP,MAIL CODE BIO-3,KENNEDY SPACE CTR,FL 32899, USA. OI Dreschel, Thomas/0000-0003-2211-5733 NR 24 TC 10 Z9 11 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 47 EP 51 DI 10.1016/0273-1177(94)90278-X PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00006 PM 11540217 ER PT S AU KLISS, M MACELROY, R BORCHERS, B FARRANCE, M NELSON, T BLACKWELL, C YENDLER, B TREMOR, J AF KLISS, M MACELROY, R BORCHERS, B FARRANCE, M NELSON, T BLACKWELL, C YENDLER, B TREMOR, J BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI CONTROLLED ECOLOGICAL LIFE-SUPPORT-SYSTEMS (CELSS) FLIGHT EXPERIMENTATION SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The NASA CELSS program has the goal of developing life support systems for humans in space based on the use of higher plants. The program has supported research at universities with a primary focus of increasing the productivity of candidate crops plants. To understand the effects of the space environment on plant productivity, the CELSS Test Facility (CTF) has been conceived as an instrument that will permit the evaluation of plant productivity on Space Station Freedom. The CTF will maintain specific environmental conditions and collect data on gas exchange rates and biomass accumulation over the growth period of several crop plants grown sequentially from seed to harvest. The science requirements of the CTF will be described, as will current design concepts and specific technology requirements for operation in micro-gravity. C1 GE CO,NASA,AMES RES CTR,GOVT SERV,MOFFETT FIELD,CA 94035. BIONET CORP,GE,GOVT SERV,MOFFETT FIELD,CA 94035. RP KLISS, M (reprint author), GE CO,DIV ADV LIFE SUPPORT,GOVT SERV,MOFFETT FIELD,CA 94035, USA. NR 9 TC 5 Z9 10 U1 1 U2 2 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 61 EP 69 DI 10.1016/0273-1177(94)90280-1 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00008 PM 11540219 ER PT S AU BUBENHEIM, DL WYDEVEN, T AF BUBENHEIM, DL WYDEVEN, T BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI APPROACHES TO RESOURCE RECOVERY IN CONTROLLED ECOLOGICAL LIFE-SUPPORT-SYSTEMS SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID CREWED SPACE HABITAT; WASTE STREAMS AB Recovery of resources from waste streams in a space habitat is essential to minimize the resupply burden and achieve self sufficiency. The ultimate goal of a Controlled Ecological Life Support System (CELSS) is to achieve the greatest practical level of mass recycle and provide self sufficiency and safety for humans. Several mission scenarios leading to the ultimate application could employ CELSS component technologies or subsystems with initial emphasis on recycle of the largest mass components of the waste stream. Candidate physical/chemical and biological processes for resource recovery from liquid and solid waste streams are discussed and the current fundamental recovery potentials are estimated. RP BUBENHEIM, DL (reprint author), NASA,AMES RES CTR,DIV ADV LIVE SUPPORT,MOFFETT FIELD,CA 94035, USA. NR 26 TC 5 Z9 5 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 113 EP 123 DI 10.1016/0273-1177(94)90287-9 PG 11 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00015 PM 11538020 ER PT S AU LANE, HW GRETEBECK, RJ AF LANE, HW GRETEBECK, RJ BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI METABOLIC ENERGY REQUIRED FOR FLIGHT SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID SPACE-FLIGHT; CARBOHYDRATE; SPACEFLIGHTS AB This paper reviews data available fro U.S. and U.S.S.R. studies on energy metabolism in the microgravity of space flight. Energy utilization and energy availability in space seem to be similar to those on Earth. However, negative nitrogen balances in space in the presence of adequate energy and protein intakes and in-flight exercise, suggest that lean body mass decreases in space. Metabolic studies during simulated (bed rest) and actual microgravity have shown changes in blood glucose, fatty acids, and insulin levels, suggesting that energy metabolism may be altered during flight. Future research should focus on the interactions of lean body mass, diet, and exercise in space and their roles in energy metabolism during space flight. RP LANE, HW (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,BIOMED OPERAT & RES BRANCH,HOUSTON,TX 77058, USA. NR 26 TC 4 Z9 5 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 147 EP 155 DI 10.1016/0273-1177(94)90291-7 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00018 PM 11538021 ER PT S AU LORETAN, PA BONSI, CK MORTLEY, DG WHEELER, RM MACKOWIAK, CL HILL, WA MORRIS, CE TROTMAN, AA DAVID, PP AF LORETAN, PA BONSI, CK MORTLEY, DG WHEELER, RM MACKOWIAK, CL HILL, WA MORRIS, CE TROTMAN, AA DAVID, PP BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI EFFECTS OF SEVERAL ENVIRONMENTAL-FACTORS ON SWEET-POTATO GROWTH SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID POTATO AB Effects of relative humidity, light intensity and photoperiod on growth of 'Ga Jet' and 'TI-155' sweetpotato cultivars, using the nutrient film technique (NFT), have been reported. In this study, the effect of ambient temperature regimes (constant 28 degrees C and diurnal 28:22 degrees C day:night) and different CO2 levels (ambient, 400,1 000, and 10 000 mu L/L - 400, 1 000 and 10 000 ppm) on growth of one or both of these cultivars in NFT are reported. For a 24-h photoperiod, no storage roots were produced for either cultivar in NFT when sweetpotato plants were grown at a constant temperature of 28 degrees C. For the same photoperiod, when a 28:22 degrees C diurnal temperature variation was used, there were still no storage roots for 'TI-155' but the cv. 'Ga Jet' produced 537 g/plant of storage roots. For both a 12-h and 24-h photoperiod,'Ga Jet' storage root fresh and dry weight tended to be higher with a 28:22 degrees C diurnal temperature variation than with a constant 28 degrees C temperature regime. Preliminary results with both 'Ga Jet' and 'TI-155' cultivars indicate a distinctive diurnal stomatal response for sweetpotato grown in NFT under an ambient CO2 level. The stomatal conductance values observed for 'Ga Jet' at elevated CO2 levels indicated that the difference between the light- and dark-period conductance rates persisted at 400, 1 000, and 10 000 mu L/L. C1 NASA,KENNEDY SPACE CTR,FL. RP LORETAN, PA (reprint author), TUSKEGEE UNIV,GEORGE WASHINGTON CARVER AGR EXPT STN,TUSKEGEE,AL 36088, USA. FU CSAP SAMHSA HHS [ALX-SP-1] NR 9 TC 7 Z9 7 U1 2 U2 8 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 277 EP 280 DI 10.1016/0273-1177(94)90308-5 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00035 PM 11540193 ER PT S AU ROTHSCHILD, LJ AF ROTHSCHILD, LJ BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI ELEVATED CO2 - IMPACT ON DIURNAL PATTERNS OF PHOTOSYNTHESIS IN NATURAL MICROBIAL ECOSYSTEMS SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID OXYGENIC PHOTOSYNTHESIS; MARINE MACROALGAE; CARBON FIXATION; MAT; MODEL AB Algae, including blue-green algae (cyanobacteria), are the major source of fixed carbon in many aquatic ecosystems. Previous work has shown that photosynthetic carbon fixation is often enhanced in the presence of additional carbon dioxide (CO2). This study was undertaken to determine if this CO2 fertilization effect extended to microbial mats, and, if so, at what times during the day might the addition of CO2 affect carbon fixation. Four microbial mars from diverse environments were selected, including mars from a hypersaline pond (area 5, Exportadora de Sal, Mexico), the marine intertidal (Lyngbya, Laguna Ojo de Liebre, Mexico), an acidic hotspring (Cyanidium, Nymph Creek, Yellowstone National Park), and an acidic stream at ambient temperature (Zygogonium, Yellowstone National Park). Carbon fixation in the absence of additional CO2 essentially followed the rising and falling sunlight levels, except that during the middle of the day there was a short dip in carbon fixation rates. The addition of CO2 profoundly enhanced carbon fixation rates during the daylight hours, including during the midday dip. Therefore, it is unlikely that the midday dip was due to photoinhibition. Surprisingly, enhancement of carbon fixation was often greatest in the early morning or late afternoon, times when carbon fixation would be most likely to be light limited. RP ROTHSCHILD, LJ (reprint author), NASA,AMES RES CTR,ECOSYST SCI & TECHNOL BRANCH,MAIL STOP 239-12,MOFFETT FIELD,CA 94035, USA. NR 18 TC 3 Z9 3 U1 0 U2 5 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 285 EP 289 DI 10.1016/0273-1177(94)90310-7 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00037 PM 11538022 ER PT S AU DRYSDALE, A MCROBERTS, M SAGER, J WHEELER, R AF DRYSDALE, A MCROBERTS, M SAGER, J WHEELER, R BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI OBJECT-ORIENTED MODEL-DRIVEN CONTROL SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB A monitoring and control subsystem architecture has been developed that capitalizes on the use of model-driven monitoring and predictive control, knowledge-based data representation, and artificial reasoning in an operator support mode. We have developed an object-oriented model of a Controlled Ecological Life Support System (CELSS). The model, based on the NASA Kennedy Space Center CELSS breadboard data, tracks carbon, hydrogen, and oxygen, carbon dioxide, and water. It estimates and tracks resource-related parameters such as mass, energy, and manpower measurements such as growing area required for balance. We are developing an interface with the breadboard systems that is compatible with artificial reasoning. Initial work is being done on use of expert systems and user interface development. This paper presents our approach to defining universally applicable CELSS monitor and control issues, and implementing appropriate monitor and control capability for a particular instance: the KSC CELSS Breadboard Facility. C1 NASA,KENNEDY SPACE CTR,FL 32899. RP DRYSDALE, A (reprint author), MCDONNELL DOUGLAS SPACE SYST,KENNEDY SPACE CTR DIV,POB 21233,KENNEDY SPACE CTR,FL 32815, USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 313 EP 322 DI 10.1016/0273-1177(94)90315-8 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00040 PM 11540199 ER PT S AU FORTSON, RE SAGER, JC CHETIRKIN, PV AF FORTSON, RE SAGER, JC CHETIRKIN, PV BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI PERFORMANCE AND RELIABILITY OF THE NASA BIOMASS PRODUCTION CHAMBER SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB The Biomass Production Chamber (BPC) at the Kennedy Space Center is part of the Controlled Ecological Life Support System (CELSS) Breadboard Project. Plants are grown in a dosed environment in an effort to quantify their contributions to the requirements for life support. Performance of this system is described. Also, in building this system, data from component and subsystem failures are being recorded. These data are used to identify problem areas in the design and implementation. The techniques used to measure the reliability will be useful in the design and construction of future CELSS. Possible methods for determining the reliability of a green plant, the primary component of a CELSS, are discussed. C1 NASA,BIOMED OPERAT & RES OFF,KENNEDY SPACE CTR,FL 32899. RP FORTSON, RE (reprint author), BIONET CORP,KENNEDY SPACE CTR,FL 32899, USA. NR 10 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 327 EP 330 DI 10.1016/0273-1177(94)90317-4 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00042 PM 11540201 ER PT S AU CORNETT, JD HENDRIX, JE WHEELER, RM ROSS, CW SADEH, WZ AF CORNETT, JD HENDRIX, JE WHEELER, RM ROSS, CW SADEH, WZ BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI MODELING GAS-EXCHANGE IN A CLOSED PLANT-GROWTH CHAMBER SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID DARK RESPIRATION AB Fluid transport models for fluxes of water vapor and CO2 have been developed for one crop of wheat and three crops of soybean grown in a closed plant growth chamber. Correspondence among these fluxes is discussed. Maximum fluxes of gases are provided for engineering design requirements of fluid recycling equipment in growth chambers. Furthermore, to investigate the feasibility of generalized crop models, dimensionless representations of water vapor fluxes are presented. The feasibility of such generalized models and the need for additional data are discussed. C1 NASA,BIOL RES & LIFE SUPPORT OFF,KENNEDY SPACE CTR,FL 32899. COLORADO STATE UNIV,CTR ENGN INFRASTRUCT & SCI SPACE,DEPT CIVIL ENGN,FT COLLINS,CO 80523. RP CORNETT, JD (reprint author), COLORADO STATE UNIV,CTR ENGN INFRASTRUCT & SCI SPACE,DEPT PLANT PATHOL & WEED SCI,FT COLLINS,CO 80523, USA. NR 4 TC 1 Z9 1 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 337 EP 341 DI 10.1016/0273-1177(94)90319-0 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00044 PM 11540203 ER PT S AU STRAYER, RF AF STRAYER, RF BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI DYNAMICS OF MICROORGANISM POPULATIONS IN RECIRCULATING NUTRIENT SOLUTIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID BACTERIA; GROWTH; SOIL AB This overview covers the basic microbial ecology of recirculating hydroponic solutions. Examples from NASA and Soviet CELSS tests and the commercial hydroponic industry will be used. The sources of microorganisms in nutrient solutions include air, water, seeds, plant containers and plumbing, biological vectors, and personnel. Microbial fates include growth, death, and emigration. Important microbial habitats within nutrient delivery sytstems are root surfaces, hardware surfaces (biofilms), and solution suspension. Numbers of bacteria on root surfaces usually exceed those from the other habitats by several orders of magnitude. Gram negative bacteria dominate the microflora with fungal counts usually much lower. Trends typically show a decrease in counts with increasing time unless dressed plants increase root exudates. Important microbial activities include carbon mineralization and nitrogen transformations. Important detrimental interactions include competition with plants, and human and plant pathogenesis. RP STRAYER, RF (reprint author), NASA,BIOMED OPERAT & RES OFF,BIONET CORP,KENNEDY SPACE CTR,FL, USA. NR 35 TC 7 Z9 7 U1 2 U2 7 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 357 EP 366 DI 10.1016/0273-1177(94)90322-0 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00047 PM 11540206 ER PT S AU KOENIG, DW BRUCE, RJ MISHRA, SK BARTA, DJ PIERSON, DL AF KOENIG, DW BRUCE, RJ MISHRA, SK BARTA, DJ PIERSON, DL BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI MICROBIOLOGICAL CHARACTERIZATION OF A REGENERATIVE LIFE-SUPPORT-SYSTEM SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID HETEROTROPHIC BACTERIA; ENVIRONMENTS AB A Variable Pressure Plant Growth Chamber (VPGC), at the Johnson Space Center's (JSC) ground-based Regenerative Life Support Systems (RLSS) test bed, was used to produce crops of soil-grown lettuce. The crops and chamber were analyzed for microbiological diversity during lettuce growth and after harvest. Bacterial counts for the rhizosphere, spent nutrient medium, heat exchanger condensate, and atmosphere were approximately 10(11) Colony Forming Units (CFU) g(-1), 10(6) CFU ml(-1). 10(5) CFU ml(-1), and 600 CFU m(-3), respectively. Pseudomonas was the predominant bacterial genus. Numbers of fungi were about 10(5) CFU g(-1) in the rhizosphere, 4-200 CFU ml(-1) in the spent nutrient medium, 110 CFU ml(-1) in the heat exchanger condensate, and 3 CFU m(-3) in the atmosphere. Fusarium and Trichoderma were the predominant fungal genera. C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. RP KOENIG, DW (reprint author), KRUG LIFE SCI INC,HOUSTON,TX, USA. NR 18 TC 2 Z9 2 U1 1 U2 2 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 377 EP 382 DI 10.1016/0273-1177(94)90324-7 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00049 PM 11540208 ER PT S AU BARTA, DJ HENNINGER, DL AF BARTA, DJ HENNINGER, DL BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI REGENERATIVE LIFE-SUPPORT-SYSTEMS - WHY DO WE NEED THEM SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Human exploration of the solar system will include missions lasting years at a time. Such missions mandate extensive regeneration of life support consumables with efficient utilization of local planetary resources. As mission durations extend beyond one or two years, regenerable human life support systems which supply food and recycle air, water, and wastes become feasible; resupply of large volumes and masses of food, water, and atmospheric gases become unrealistic. Additionally, reduced dependency on resupply or self sufficiency can be an added benefit to human crews in hostile environments far from the security of Earth. Comparisons of resupply and regeneration will be discussed along with possible scenarios for developing and implementing human life support systems on the Moon and Mars. RP BARTA, DJ (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,MAIL CODE EC3,HOUSTON,TX 77058, USA. NR 27 TC 20 Z9 26 U1 0 U2 4 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 403 EP 410 DI 10.1016/0273-1177(94)90329-8 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00053 PM 11540213 ER PT S AU MING, DW HENNINGER, DL AF MING, DW HENNINGER, DL BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI USE OF LUNAR REGOLITH AS A SUBSTRATE FOR PLANT-GROWTH SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS AB Regenerative Life Support Systems (RLSS) will be required to regenerate air, water, and wastes, and to produce food for human consumption during long-duration missions to the Moon and Mars. It may be possible to supplement some of the materials needed for a lunar RLSS from resources on the Moon. Natural materials at the lunar surface may be used for a variety of lunar RLSS needs, including (i) soils or solid-support substrates for plant growth, (ii) sources for extraction of essential, plant-growth nutrients, (iii) substrates for microbial populations in the degradation of wastes, (iv) sources of O-2 and H-2, which may be used to manufacture water, (v) feed stock materials for the synthesis of useful minerals (e.g., molecular sieves), and (vi) shielding materials surrounding the outpost structure to protect humans, plants, and microorganisms from harmful radiation. Use of indigenous lunar regolith as a terrestrial-like soil for plant growth could offer a solid support substrate, buffering capacity, nutrient source/storage/retention capabilities, and should be relatively easy to maintain. The lunar regolith could, with a suitable microbial population, play a role in waste renovation; much like terrestrial waste application directly on soils. Issues associated with potentially toxic elements, pH, nutrient availability, air and fluid movement parameters, and cation exchange capacity of lunar regolith need to be addressed before lunar materials can be used effectively as soils for plant growth. RP MING, DW (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,MAIL CODE SN4,HOUSTON,TX 77058, USA. NR 18 TC 4 Z9 5 U1 0 U2 7 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 435 EP 443 DI 10.1016/0273-1177(94)90333-6 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00057 PM 11538023 ER PT S AU CAHOON, DR LEVINE, JS COFER, WR STOCKS, BJ AF CAHOON, DR LEVINE, JS COFER, WR STOCKS, BJ BE MacElroy, RD Mitchell, CA Andre, M Blackwell, CC Tibbitts, TW Banin, A Levine, JS TI THE EXTENT OF BURNING IN AFRICAN SAVANNAS SO LIFE SCIENCES AND SPACE RESEARCH XXV (3): NATURAL AND ARTIFICIAL ECOSYSTEMS SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR-Interdisciplinary-Scientific-Commission F of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRONAUT, NASA, INT URSIGRAM & WORLD DAYS SERV, SCI COMM SOLAR TERRESTRIAL PHYS ID FIRES AB The temporal and spatial distribution of African savanna grassland fires has been examined, and the areal extent of these fires has been estimated for the subequatorial African continent. African savanna fires have been investigated using remote sensing techniques and imagery collected by low-light sensors on Defense Meteorological Satellite Program (DMSP) satellites and by the Advanced Very High Resolution Radiometer (AVHRR) which is aboard polar-orbiting National Oceanic and Atmospheric Administration (NOAA) satellites. DMSP imagery has been used to map the evolution of savanna burning over all of the African continent /1/ and the analysis of AVHRR imagery has been used to estimate the areal extent of the burning in the southern hemispheric African savannas. The work presented primarily reflects the analysis completed for the year 1987. However, comparisons have been made with other years and the representativeness of the 1987 analysis is discussed. C1 FORESTRY CANADA,GREAT LAKES FORESTRY CTR,SAULT ST MARIE P6A 5M7,ON,CANADA. RP CAHOON, DR (reprint author), NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23681, USA. NR 18 TC 4 Z9 6 U1 1 U2 3 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042488-0 J9 ADV SPACE RES PY 1994 VL 14 IS 11 BP 447 EP 454 DI 10.1016/0273-1177(94)90334-4 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Ecology; Environmental Sciences; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Environmental Sciences & Ecology; Geology; Meteorology & Atmospheric Sciences GA BA56F UT WOS:A1994BA56F00058 ER PT S AU CHYBA, CF AF CHYBA, CF BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI COMETS IN OTHER PLANETARY SYSTEMS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID PICTORIS CIRCUMSTELLAR DISK; CA-II; ORGANIC-MOLECULES; EARLY EARTH; DELIVERY; EVOLUTION; CLOUDS; LIFE AB Comets in our solar system appear to have provided a bridge between the cold, volatile-rich outer solar system, and the warm, but volatile-poor inner solar system. Excluding tidal and possible extinct radionuclide heating sources, only in the inner solar system are temperatures high enough for liquid water, and therefore life as we know it, to exist for times comparable to the age of the solar system. Comets may have been crucial for providing biogenic volatiles and perhaps organic molecules to this warm environment. It is therefore interesting from an exobiological point of view to ask if comets exist in other planetary systems, Most attempts to detect comets around other stars or in interstellar space have failed. However, there is growing spectroscopic evidence for comet-like bodies orbiting the star Beta Pictoris. RP CHYBA, CF (reprint author), NASA,GODDARD SPACE FLIGHT CTR,EXTRATERR PHYS LAB,CODE 693,GREENBELT,MD 20771, USA. NR 24 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 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 45 EP 48 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00005 ER PT S AU HUNTINGTON, JL STRATTON, DM SCATTERGOOD, TW AF HUNTINGTON, JL STRATTON, DM SCATTERGOOD, TW BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI EXOBIOLOGY RESEARCH ON SPACE STATION FREEDOM SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID GRAINS AB The Gas-Grain Simulation Facility (GGSF) is a multidisciplinary experiment laboratory being developed by NASA at Ames Research Center for delivery to Space Station Freedom in 1998. This facility will employ the low-gravity environment of the Space Station to enable aerosol experiments of much longer duration than is possible in any ground-based laboratory. Studies of fractal aggregates that are impossible to sustain on Earth will also be enabled. Three research areas within exobiology that will benefit from the GGSF are described here. An analysis of the needs of this research and of other suggested experiments has produced a list of science requirements which the facility design must accommodate. A GGSF design concept developed in the first stage of flight hardware development to meet these requirements is also described. C1 SUNY STONY BROOK,NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP HUNTINGTON, JL (reprint author), NASA,AMES RES CTR,INST SETI,MAIL STOP 239-12,MOFFETT FIELD,CA 94035, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 135 EP 138 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00017 ER PT S AU KLEIN, HP DEVINCENZI, DL AF KLEIN, HP DEVINCENZI, DL BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI EXOBIOLOGICAL EXPLORATION OF MARS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE AB Of all the other planets in the solar system, Mars remains the most promising for further elucidating concepts about chemical evolution and the origin of life. Strategies were developed to pursue three exobiological objectives for Mars exploration: determining the abundance and distribution of the biogenic elements and organic compounds, detecting evidence of an ancient biota on Mars, and determining whether indigenous organisms exist anywhere on the planet. The three strategies are quite similar and, in fact, share the same sequence of phases. In the first phase, each requires global reconnaissance and remote sensing by orbiters to select sites of interest for detailed in situ analyses. In the second phase, lander missions are conducted to characterize the chemical and physical properties of the selected sites. The third phase involves conducting ''critical'' experiments at sites whose properties make them particularly attractive for exobiology. These critical experiments would include, for example, identification of organics, detection of fossils, and detection of extant life. The fourth phase is the detailed analysis of samples returned from these sites in Earth-based laboratories to confirm and extend previous discoveries. Finally, in the fifth phase, human exploration is needed to establish the geological settings for the earlier findings or to discover and explore sites that are not accessible to robotic spacecraft. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP KLEIN, HP (reprint author), SANTA CLARA UNIV,SANTA CLARA,CA 95053, USA. NR 17 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 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 151 EP 156 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00019 ER PT S AU FARMER, J DESMARAIS, D GREELEY, R LANDHEIM, R KLEIN, H AF FARMER, J DESMARAIS, D GREELEY, R LANDHEIM, R KLEIN, H BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI SITE SELECTION FOR MARS EXOBIOLOGY SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH-SERIES LA English DT Review CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, D.C. SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID FLUVIAL VALLEYS; ORIGIN; EVOLUTION AB The selection of sites on Mars that have a high priority for exobiological research is fundamental for planning future exploration. The most immediate need is to identify targets for high resolution orbital imaging during the Mars Observer and Mars '94/'96 missions that can be used to refine site priorities for surface exploration. We present an objective approach to site selection whereby individual sites are selected and scored, based on the presence of key geological features which indicate high priority environments. Prime sites are those that show evidence for the prolonged activity of liquid water and which have sedimentary deposits that are likely to have accumulated in environments favorable for life. High priority areas include fluvio-lacustrine (stream-fed lake systems), springs, and periglacial environments. Sites where mineralization may have occurred in the presence of organisms (e.g. springs) are given high priority in the search for a fossil record on Mars. A systematic review of Viking data for 83 sites in the Mars Landing Site Catalog/1/ resulted in the selection of 13 as being of exobiological interest. The descriptions of these sites were expanded to address exobiological concerns. An additional five sites were identified for inclusion in the second edition of the MLSC. We plan to broaden our site selection activities to include a systematic global reconnaissance of Mars using Viking data, and will continue to refine site priorities for exobiological research based on data from future missions in order to define strategies for surface exploration. C1 ARIZONA STATE UNIV, DEPT GEOL, TEMPE, AZ 85287 USA. UNIV SANTA CLARA, DEPT BIOL, SANTA CLARA, CA 95053 USA. RP FARMER, J (reprint author), NASA, AMES RES CTR, MS 239-4, MOFFETT FIELD, CA 94035 USA. NR 25 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES-SERIES PY 1994 VL 15 IS 3 BP 157 EP 162 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00020 ER PT S AU BANIN, A MANCINELLI, RL AF BANIN, A MANCINELLI, RL BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI LIFE ON MARS .1. THE CHEMICAL ENVIRONMENT SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID EVOLUTION AB The origin of life at its abiotic evolutionary stage, requires a combination of constituents and environmental conditions that enable the synthesis of complex replicating macromolecules from simpler monomeric molecules. It is very likely that the early stages of this evolutionary process have been spontaneous, rapid and widespread on the surface of the primitive Earth, resulting in the formation of quite sophisticated living organisms within less than a billion years. To what extent did such conditions prevail on Mars? Two companion-papers (Life on Mars? I and II) will review and discuss the available information related to the chemical, physical and environmental conditions on Mars and assess it from the perspective of potential exobiological evolution. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP BANIN, A (reprint author), HEBREW UNIV JERUSALEM,POB 12,IL-76100 REHOVOT,ISRAEL. RI Mancinelli, Rocco/L-8971-2016 NR 23 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 163 EP 170 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00021 ER PT S AU MANCINELLI, RL BANIN, A AF MANCINELLI, RL BANIN, A BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI LIFE ON MARS .2. PHYSICAL RESTRICTIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH-SERIES LA English DT Review CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, D.C. SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID PLANETARY-ATMOSPHERES; SEASONAL-VARIATION; MARTIAN SURFACE; CARBON-DIOXIDE; WATER-VAPOR; ICE; ORIGIN; EARTH; TEMPERATURES; PRESSURE AB The primary physical factors important to life's evolution on a planet include its temperature, pressure and radiation regimes. Temperature and pressure regulate the presence and duration of liquid water on the surface of Mars. The prolonged presence of liquid water is essential for the evolution and sustained presence of life on it planet. It has been postulated that Mars has always been a cold dry planet; it has also been postulated that early Mars possessed a dense atmosphere of CO2 (greater than or equal to 1 bar) and sufficient water to cut large channels across its surface. The degree to which either of these postulates is true correlates with the suitability of Mars for life's evolution. Although radiation can destroy living systems, the high fluxes of UV radiation on the martian surface do not necessarily stop the origin and early evolution of life. The probability for life to have arisen and evolved to a significant degree on Mars, based on the postulated ranges of early martian physical factors, is almost solely related to the probability of liquid water existing on the planet for at least hundreds of millions to billions of years. C1 HEBREW UNIV JERUSALEM, IL-76100 REHOVOT, ISRAEL. RP NASA, AMES RES CTR, MOFFETT FIELD, CA 94035 USA. RI Mancinelli, Rocco/L-8971-2016 NR 63 TC 0 Z9 0 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD OX5 1GB, ENGLAND SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES-SERIES PY 1994 VL 15 IS 3 BP 171 EP 176 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00022 ER PT S AU SCHWARTZ, DE MANCINELLI, RL WHITE, MR AF SCHWARTZ, DE MANCINELLI, RL WHITE, MR BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI SEARCH FOR LIFE ON MARS - EVALUATION OF TECHNIQUES SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE AB An important question for exobiology is, did life evolve on Mars? To answer this question, experiments must be conducted on the martian surface. Given current mission constraints on mass, power, and volume, these experiments can only be performed using proposed analytical techniques such as: electron microscopy, X-ray fluorescence, X-ray diffraction, a-proton backscatter, g-ray spectrometry, differential thermal analysis, differential scanning calorimetry, pyrolysis gas chromatography, mass spectrometry, and specific element detectors. Using prepared test samples consisting of 1% organic matter (bovine serum albumin) in palagonite and a mixture of palagonite, clays, iron oxides, and evaporites, it was determined that a combination of X-ray diffraction and differential thermal analysis coupled with gas chromatography provides the best insight into the chemistry, mineralogy, and geological history of the samples. RP SCHWARTZ, DE (reprint author), NASA,AMES RES CTR,INST SETI,MAIL STOP 239-12,MOFFETT FIELD,CA 94035, USA. RI Mancinelli, Rocco/L-8971-2016 NR 18 TC 0 Z9 0 U1 2 U2 3 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 193 EP 197 PG 5 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00025 ER PT S AU ANDERSEN, DT DORAN, P BOLSHIYANOV, D RICE, J GALCHENKO, V CHERYCH, N WHARTON, RA MCKAY, CP MEYER, M GARSHNEK, V AF ANDERSEN, DT DORAN, P BOLSHIYANOV, D RICE, J GALCHENKO, V CHERYCH, N WHARTON, RA MCKAY, CP MEYER, M GARSHNEK, V BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI A PRELIMINARY COMPARISON OF 2 PERENNIALLY ICE-COVERED LAKES IN ANTARCTICA - ANALOGS OF PAST MARTIAN LACUSTRINE ENVIRONMENTS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID SUPERSATURATION AB Perennially ice-covered lakes in the Antarctic have been suggested as analogs to lakes which may have existed on the surface of Mars 3.5 billion years ago. During the 1991-1992 austral summer, a joint Russian/American research effort was directed at studies of ice-covered lakes in the Bunger Hills Oasis, Antarctica (66 degrees S, 100 degrees E). The primary objective of the expedition was to investigate this ice-free area for features analogous to ancient martian environments that may have been capable of supporting life and to compare the ice-covered lakes of the Bunger Hills with those in the McMurdo Dry Valleys of southern Victoria Land (77 degrees S, 166 degrees E) as part of the continuing studies of Antarctic-Mars analogs. C1 NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035. UNIV NEVADA,DESERT RES INST,RENO,NV 89506. ARIZONA STATE UNIV,DEPT GEOG,TEMPE,AZ 85287. RUSSIAN ACAD SCI,INST MICROBIOL,MOSCOW,RUSSIA. ARCTIC & ANTARCTIC RES INST,ST PETERSBURG 199226,RUSSIA. LOCKHEED ENGN & SCI CO,WASHINGTON,DC 20024. LOCKHEED ENGN & SCI CO,MOFFETT FIELD,CA 94035. RP ANDERSEN, DT (reprint author), SETI INST,2035 LANDINGS DR,MT VIEW,CA 94034, USA. NR 15 TC 1 Z9 1 U1 1 U2 3 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 199 EP 202 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00026 ER PT S AU ROTHSCHILD, LJ AF ROTHSCHILD, LJ BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI A CRYPTIC MICROBIAL MAT - A NEW MODEL ECOSYSTEM FOR EXTANT LIFE ON MARS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID CARBON FIXATION; SURFACE AB If life were present on Mars today, it would face potentially lethal environmental conditions such as a lack of water, frigid temperatures, ultraviolet radiation, and soil oxidants. In addition, the Viking missions did not detect near-surface organic carbon available for assimilation. Autotrophic organisms that lived under a protective layer of sand or gravel would be able to circumvent the ultraviolet radiation and lack of fixed carbon. Two terrestrial photosynthetic near-surface microbial communities have been indentified, one in the inter-and supertidal of Laguna Ojo de Liebre (Baja California Sur, Mexico) and one in the acidic gravel near several small geysers in Yellowstone National Park (Wyoming, U.S.A.). Both comnunities have been studied with respect to their ability to fix carbon under different conditions, including elevated levels of inorganic carbon. Although these sand communities have not been exposed to the entire suite of Martian environmental conditions simultaneously, such communities can provide a useful model ecosystem for a potential extant Martian biota. RP ROTHSCHILD, LJ (reprint author), NASA,AMES RES CTR,ECOSYST SCI & TECHNOL BRANCH,MAIL STOP 239-12,MOFFETT FIELD,CA 94035, USA. NR 20 TC 1 Z9 1 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 223 EP 228 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00030 ER PT S AU SWEETSER, TH HALSELL, CA CESARONE, RJ AF SWEETSER, TH HALSELL, CA CESARONE, RJ BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI DESIGNING PLANETARY PROTECTION INTO THE MARS OBSERVER MISSION SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE AB Planetary protection has been an important consideration during the process of designing the Mars Observer mission. It affected trajectory design of both the interplanetary transfer and the orbits at Mars; these in rum affected the observation strategies developed for the mission. The Project relied mainly on the strategy of collision avoidance to prevent contamination of Mars. Conservative estimates of spacecraft reliability and Martian atmosphere density were used to evaluate decisions concerning the interplanetary trajectory, the orbit insertion phase at Mars, and operations in orbit at Mars and afterwards. Changes in the trajectory design, especially in the orbit insertion phase, required a refinement of those estimates. RP SWEETSER, TH (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 5 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 257 EP 260 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00035 ER PT S AU LUNINE, JI MCKAY, CP AF LUNINE, JI MCKAY, CP BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI SURFACE-ATMOSPHERE INTERACTIONS ON TITAN COMPARED WITH THOSE ON THE PRE-BIOTIC EARTH SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID EVOLUTION AB The surface and atmosphere of Titan constitute a system which is potentially as complex as that of the Earth, with the possibility of precipitation, surface erosion due to liquids, chemistry in large surface or subsurface hydrocarbon reservoirs, surface expressions of internal activity, and occasional major impacts leading to crustal melting. While none of the above have been observed as yet, the composition, density and thermal properties of Titan's atmosphere make it uniquely suited in the outer solar system as a place where such processes may occur. The one attribute of the Earth not expected on Titan is biological activity, which has had a profound effect on the evolution of the Earth's surface-atmosphere system. The earliest environment of Titan could have been warm enough for liquid ammonia-water solutions to exist on or near surface; pre-biotic organic processes may have taken place in such an environment. After a few hundred million years surface ammonia-water would have disappeared. Therefore, study of Titan through the Cassini/Huygens mission, planned for launch in 1997, primarily affords the opportunity to understand planet-wide surface-atmosphere interactions in the presence of fluids but in the absence of life. More speculative is the possibility that endogenic and exogenic heating continue to provide short-lived environments on Titan wherein pre-biotic organic processes in the presence of water happen. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP LUNINE, JI (reprint author), UNIV ARIZONA,LUNAR & PLANETARY LAB,TUCSON,AZ 85721, USA. NR 27 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 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 303 EP 311 PG 9 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00042 ER PT S AU SCATTERGOOD, TW AF SCATTERGOOD, TW BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI THE PHYSICAL NATURE OF TITANS AEROSOLS - LABORATORY SIMULATIONS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID ATMOSPHERE; MODEL AB The atmosphere of Titan is known to contain aerosols, as evidenced by the Voyager observations of at least three haze layers. Such aerosols can have significant effects on the reflection spectrum of Titan and on the chemistry and thermal structure of its atmosphere. To investigate some of these effects, laboratory simulations of the chemistry of Titan's atmosphere have been done. The results of these studies show that photolysis of acetylene, ethylene, and hydrogen cyanide, known constituents of Titan's atmosphere, yields sub-micron sized spheres, with mean diameters ranging from 0.4 to 0.8 mu m, depending on the pressures of the reactant gases. Most of the spheres are contained in near-linear aggregates. The formation of the aggregates is consistent with models of Titan's reflection spectrum and polarization, which are best fit with non-spherical particles. At room temperature, the particles are very sticky, but their properties at low temperatures on Titan are presently not known. C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP SCATTERGOOD, TW (reprint author), SUNY STONY BROOK,STONY BROOK,NY 11794, USA. NR 10 TC 2 Z9 2 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 313 EP 316 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00043 ER PT S AU SCHUTTE, WA ALLAMANDOLA, LJ SANDFORD, SA AF SCHUTTE, WA ALLAMANDOLA, LJ SANDFORD, SA BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI VERY-LOW TEMPERATURE FORMALDEHYDE REACTIONS AND THE BUILDUP OF ORGANIC-MOLECULES IN COMETS AND INTERSTELLAR ICES SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE AB We have investigated thermally promoted reactions of formaldehyde (H2CO) in very low temperature ices. No such reactions occurred in ices of pure formaldehyde. However, addition of trace amounts of ammonia (NH3) were sufficient to catalyze reactions at temperatures as low as 40 K. Similar reactions could take place in interstellar ices and in Comets and produce considerable amounts of organic molecules. C1 LEIDEN OBSERV LAB,2300 RA LEIDEN,NETHERLANDS. RP SCHUTTE, WA (reprint author), NASA,AMES RES CTR,MS 245-6,MOFFETT FIELD,CA 94035, USA. NR 8 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 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 401 EP 406 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00051 ER PT S AU SALAMA, F ALLAMANDOLA, LJ AF SALAMA, F ALLAMANDOLA, LJ BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI POLYCYCLIC AROMATIC HYDROCARBON IONS AND THE DIFFUSE INTERSTELLAR BANDS SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID VIBRONIC ABSORPTION-SPECTRA; SOLID ARGON; NAPHTHALENE; EMISSION; FEATURES; PYRENE; PHOTOELECTRON; ULTRAVIOLET; RADICALS; CATIONS AB Neutral naphthalene (C10H8), phenanthrene (C14H10), and pyrene (C16H10) absorb strongly in the ultraviolet and may contribute to the extinction curve. High abundances are required to produce detectable structures. The cations of these PAHs absorb in the visible. C1OH8+ has 12 discrete absorption bands which fall between 6800 and 5000 Angstrom. The strongest band at 6741 Angstrom falls close to the weak 6742 Angstrom diffuse interstellar band (DIB). Five other weaker bands also match DIBs. The possibility that C10H8+ is responsible for some of the DIBs can be tested by searching for new DIBS at 6520, 6151, and 5965 Angstrom, other moderately strong naphthalene cation band positions. If C10H8+ is indeed responsible for the 6742 Angstrom feature, it accounts for 0.3% of the cosmic carbon. The spectrum of C16H10+ is dominated by a strong band at 4435 Angstrom in an Ar matrix and 4395 Angstrom in a Ne matrix, a position which falls very close to the strongest DIB, that at 4430 Angstrom. If C16H10+, or a closely related pyrene-like ion is indeed responsible for the 4430 Angstrom feature, it accounts for 0.2% of the cosmic carbon. We also report an intense, very broad UV-to-visible continuum which is associated with both ions and could explain how PAHs convert interstellar UV and visible radiation into IR. RP SALAMA, F (reprint author), NASA,AMES RES CTR,DIV SPACE SCI,MS 245-6,MOFFETT FIELD,CA 94035, USA. RI Salama, Farid/A-8787-2009 OI Salama, Farid/0000-0002-6064-4401 NR 33 TC 2 Z9 2 U1 0 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 413 EP 422 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00053 ER PT S AU FERGUSON, F LILLELEHT, LU NUTH, J STEPHENS, JR BUSSOLETTI, E CAROTENUTO, L COLANGELI, L DELLAVERSANA, P MELE, F MENNELLA, V MIRRA, C AF FERGUSON, F LILLELEHT, LU NUTH, J STEPHENS, JR BUSSOLETTI, E CAROTENUTO, L COLANGELI, L DELLAVERSANA, P MELE, F MENNELLA, V MIRRA, C BE Greenberg, JM Oro, J Brack, A Devincenzi, DL Banin, A Friedmann, EI Rummel, JD Raulin, F McKay, CP Baltscheffsky, H Schwartz, AW Schidlowski, M Roessler, K TI COSMIC DUST ANALOG SIMULATION IN A MICROGRAVITY ENVIRONMENT - THE STARDUST PROGRAM SO LIFE SCIENCES AND SPACE RESEARCH XXV (4): PLANETARY BIOLOGY AND ORIGINS OF LIFE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission F (Meeting F3) of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, INT ACAD ASTRON, INT ASTRON FEDERAT, NASA, EUROPEAN SPACE AGCY, DEUT AGENTUR RAUMFAHRTANGELEGENHEITEN GMBH, INT SOC STUDY ORIGIN LIFE ID HOMOGENEOUS NUCLEATION AB We have undertaken a project called STARDUST which is a collaboration with Italian and American investigators. The goals of this program are to study the condensation and coagulation of refractory materials from the vapor and to study the properties of the resulting grains as analogs to cosmic dust particles, To reduce thermal convective currents and to develop valuable experience in designing an experiment for the Gas-Grain Simulation Facility aboard Space Station, Freedom we have built and flown a new chamber to study these processes under periods of microgravity available on NASA's KC-135 Research Aircraft. Preliminary results from nights with magnesium and zinc are discussed. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. MATRIX CORP,SANTA FE,NM. UNIV NAPLES,IST NAVALE,NAPLES,ITALY. MARS CTR,NAPLES,ITALY. UNIV CASSINO,I-03043 CASSINO,ITALY. OSSERV ASTRON CAPODIMONTE,I-80131 NAPLES,ITALY. RP FERGUSON, F (reprint author), UNIV VIRGINIA,CHARLOTTESVILLE,VA, USA. RI Ferguson, Frank/C-9493-2012 NR 6 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042540-2 J9 ADV SPACE RES PY 1994 VL 15 IS 3 BP 423 EP 426 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BC58D UT WOS:A1994BC58D00054 ER PT J AU VODACEK, A GREEN, SA BLOUGH, NV AF VODACEK, A GREEN, SA BLOUGH, NV TI AN EXPERIMENTAL-MODEL OF THE SOLAR-STIMULATED FLUORESCENCE OF CHROMOPHORIC DISSOLVED ORGANIC-MATTER SO LIMNOLOGY AND OCEANOGRAPHY LA English DT Article ID CHLOROPHYLL-A; RAMAN-SCATTERING; NATURAL-WATERS; OCEAN; REFLECTANCE; ABSORPTION; SPECTROSCOPY AB We present an experimental model of CDOM solar-stimulated fluorescence. Three-dimensional fluorescence spectra of natural waters were used to determine the solar-stimulated emission as a function of depth in the water column. Inclusion of the wavelength-dependent fluorescence quantum yield provides emission values in absolute units of photons s-1 cm-2 5 nm-1. Attenuation of light in the water column was also modeled, allowing determination of total upwelled emission. The upwelled fluorescence is compared to irradiance reflectance calculated from a semianalytical model. The fluorescence contribution to reflectance in the blue-green to green region can be as high as 70% for blackwater but is rapidly reduced by the introduction of scattering particles. Except for blackwaters, CDOM fluorescence does not significantly affect irradiance reflectance ratios commonly used in remote-sensing applications. In water with moderate amounts of CDOM (absorption coefficient at 355 nm greater-than-or-equal-to 0.5 m-1), fluorescence will dominate water Raman scattering as a secondary influence on the light field in the green spectral region. C1 WOODS HOLE OCEANOG INST,WOODS HOLE,MA 02543. RP VODACEK, A (reprint author), NASA,GSFC,WALLOPS FLIGHT FACIL,WALLOPS ISL,VA 23337, USA. RI Blough, Neil/B-7727-2009; Vodacek, Anthony/F-1585-2011; OI Vodacek, Anthony/0000-0001-9196-0928; Green, Sarah/0000-0002-8094-433X NR 26 TC 21 Z9 21 U1 0 U2 5 PU AMER SOC LIMNOLOGY OCEANOGRAPH PI LAWRENCE PA 810 EAST 10TH ST, LAWRENCE, KS 66044-8897 SN 0024-3590 J9 LIMNOL OCEANOGR JI Limnol. Oceanogr. PD JAN PY 1994 VL 39 IS 1 BP 1 EP 11 PG 11 WC Limnology; Oceanography SC Marine & Freshwater Biology; Oceanography GA NC778 UT WOS:A1994NC77800001 ER PT J AU FUSARO, RL AF FUSARO, RL TI UNTITLED SO LUBRICATION ENGINEERING LA English DT Editorial Material C1 STLE,EXECUT COMM,PK RIDGE,IL 60068. RP FUSARO, RL (reprint author), NASA,LEWIS RES CTR,21000 BROOKPARK RD,MS 23-3,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC TRIBOLOGISTS & LUBRICATION ENGINEERS PI PARK RIDGE PA 838 BUSSE HIGHWAY, PARK RIDGE, IL 60068 SN 0024-7154 J9 LUBR ENG JI Lubric. Eng. PD JAN PY 1994 VL 50 IS 1 BP 23 EP 24 PG 2 WC Engineering, Mechanical SC Engineering GA MQ951 UT WOS:A1994MQ95100005 ER PT S AU ERKAEV, NV MEZENTSEV, AV BIERNAT, HK BESSER, BP BACHMAIER, GA SEMENOV, VS RIJNBEEK, RP FARRUGIA, CJ AF ERKAEV, NV MEZENTSEV, AV BIERNAT, HK BESSER, BP BACHMAIER, GA SEMENOV, VS RIJNBEEK, RP FARRUGIA, CJ BE Russell, CT TI THE SOLAR-WIND FLOW ALONG THE SUBSOLAR LINE IN THE MAGNETIC BARRIER AND RECONNECTION AT THE MAGNETOPAUSE SO MAGNETOSHEATH SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission D of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, SCI COMM SOLAR TERRESTRIAL PHYS ID MAGNETOSPHERE; LAYERS AB The magnetic barrier is a significant fraction of the magnetosheath region where magnetic forces react back on the plasma flow. We use a magnetohydrodynamic approach to calculate the solar wind flow around the magnetosphere. The use of so-called frozen-in coordinates, where the flow lines and the magnetic field are coordinate axes, is found to be most appropriate. Numerical solutions are presented for the problem of the flow around a blunt body. The results near the magnetopause are used as input parameters for a model of the reconnection of magnetic field lines based on shock-type structures. C1 AUSTRIAN ACAD SCI,SPACE RES INST,A-8010 GRAZ,AUSTRIA. ST PETERSBURG STATE UNIV,INST PHYS,ST PETERSBURG,RUSSIA. UNIV ST ANDREWS,DEPT MATH SCI,ST ANDREWS KY16 9SS,SCOTLAND. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP ERKAEV, NV (reprint author), RUSSIAN ACAD SCI,CTR COMP,SIBERIAN DIV,KRASNOYARSK,RUSSIA. RI Semenov, Vladimir/A-5530-2013; Erkaev, Nikolai/M-1608-2013 OI Semenov, Vladimir/0000-0001-6592-056X; Erkaev, Nikolai/0000-0001-8993-6400 NR 24 TC 3 Z9 3 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042484-8 J9 ADV SPACE RES PY 1994 VL 14 IS 7 BP 81 EP 86 DI 10.1016/0273-1177(94)90051-5 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BA32K UT WOS:A1994BA32K00011 ER PT S AU FARRUGIA, CJ FITZENREITER, RJ BURLAGA, LF ERKAEV, NV OSHEROVICH, VA BIERNAT, HK FAZAKERLEY, A AF FARRUGIA, CJ FITZENREITER, RJ BURLAGA, LF ERKAEV, NV OSHEROVICH, VA BIERNAT, HK FAZAKERLEY, A BE Russell, CT TI OBSERVATIONS IN THE SHEATH REGION AHEAD OF A MAGNETIC CLOUD AND IN THE DAYSIDE MAGNETOSHEATH DURING MAGNETIC CLOUD PASSAGE SO MAGNETOSHEATH SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT Topical Meeting of the COSPAR Interdisciplinary Scientific Commission D of the COSPAR 29th Plenary Meeting CY AUG 28-SEP 05, 1992 CL WASHINGTON, DC SP COMM SPACE RES, SCI COMM SOLAR TERRESTRIAL PHYS ID MAGNETOPAUSE; SHOCK AB We present magnetic field and particle (protons and electrons) observations in the sheath region behind an interplanetary shock driven by a magnetic cloud, and in the magnetic cloud itself. We also discuss observations in the dayside terrestrial magnetosheath during cloud passage. We find that the region ahead of the cloud is in pressure balance. Further, throughout its extent ( > 0.06 AU), the magnetic field strength is anticorrelated with the plasma density, with the latter decreasing steadily as the cloud is approached. This behaviour is indicative of magnetic forces influencing the Row topology and highlights a large-scale breakdown of predictions based solely on gas dynamical considerations. We also study density stuctures inside the cloud which result in an undulating dynamic pressure being applied to the magnetopause causing it to oscillate with amplitudes of similar to 1 similar to 3 Re and period similar to 2h. C1 RUSSIAN ACAD SCI,CTR COMP,SIBERIAN DIV,KRASNOYARSK,RUSSIA. HUGHES STX,NASA,GSFC,LANHAM,MD 20706. AUSTRIAN ACAD SCI,SPACE RES INST,A-8010 GRAZ,AUSTRIA. UNIV LONDON IMPERIAL COLL SCI & TECHNOL,BLACKETT LAB,LONDON,ENGLAND. RP FARRUGIA, CJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Erkaev, Nikolai/M-1608-2013 OI Erkaev, Nikolai/0000-0001-8993-6400 NR 15 TC 19 Z9 20 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042484-8 J9 ADV SPACE RES PY 1994 VL 14 IS 7 BP 105 EP 110 DI 10.1016/0273-1177(94)90055-8 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BA32K UT WOS:A1994BA32K00015 ER PT J AU JOHANOS, TC BECKER, BL RAGEN, TJ AF JOHANOS, TC BECKER, BL RAGEN, TJ TI ANNUAL REPRODUCTIVE-CYCLE OF THE FEMALE HAWAIIAN MONK SEAL (MONACHUS-SCHAUINSLANDI) SO MARINE MAMMAL SCIENCE LA English DT Article DE HAWAIIAN MONK SEAL; MONACHUS-SCHAUINSLANDI; REPRODUCTION; BIRTH RATE; SEASONAL BREEDING; ANNUAL CYCLE; ESTRUS AB The annual reproductive cycle is described for the adult female Hawaiian monk seal (Monachus schauinslandi) from data collected at Laysan Island (1982-1991) and Lisianski Island (1982-1983) in the Northwestern Hawaiian Islands. Pupping, lactation, weaning, and molting were directly observed, while mating was rarely observed and was, therefore, inferred from the occurrence of mounting injuries and from adult male and female association patterns. Pooled birth rates during the study period were 0.544 for all adult-sized females and 0.675 for females parous in earlier years. For parturient females, pupping peaked in late March and early April, weaning in May, mounting injuries in May and June, and molting in July. For non-parturient females, the median mounting injury and molting dates occurred 17 and 28 days earlier, respectively. Pupping date set the timing of subsequent events in the annual cycle, but the timing of those events was adjusted by loss of the pup or poor physical condition of the female. Individual pupping patterns varied widely. The mean interval for births in consecutive years was 381 days; females that pupped in consecutive years gave birth later each season. Conversely, females who skipped a year or more gave birth earlier their next pupping season. RP JOHANOS, TC (reprint author), NOAA,NATL MARINE FISHERIES SERV,SW FISHERIES SCI CTR,HONOLULU LAB,2570 DOLE ST,HONOLULU,HI 96822, USA. NR 37 TC 35 Z9 39 U1 5 U2 18 PU SOC MARINE MAMMALOGY PI LAWRENCE PA 1041 NEW HAMPSHIRE ST, LAWRENCE, KS 66044 SN 0824-0469 J9 MAR MAMMAL SCI JI Mar. Mamm. Sci. PD JAN PY 1994 VL 10 IS 1 BP 13 EP 30 DI 10.1111/j.1748-7692.1994.tb00386.x PG 18 WC Marine & Freshwater Biology; Zoology SC Marine & Freshwater Biology; Zoology GA MZ849 UT WOS:A1994MZ84900002 ER PT B AU MILLER, HR NOBLE, JC AF MILLER, HR NOBLE, JC BE Shlosman, I TI THE DETECTION OF MICROVARIATIONS FOR AKN-120 SO MASS-TRANSFER INDUCED ACTIVITY IN GALAXIES LA English DT Proceedings Paper CT International Astrophysics Conference on Mass-Transfer Induced Activity in Galaxies CY APR 26-30, 1993 CL UNIV KENTUCKY, LEXINGTON, KY SP UNIV KENTUCKY, NASA HO UNIV KENTUCKY C1 NASA,JPL,WASHINGTON,DC. NR 0 TC 4 Z9 5 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-47195-8 PY 1994 BP 59 EP 60 DI 10.1017/CBO9780511564789.013 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB25F UT WOS:A1994BB25F00012 ER PT B AU TAYLOR, JA KAZANAS, D AF TAYLOR, JA KAZANAS, D BE Shlosman, I TI THE CONTRIBUTION OF COOL-WIND REPROCESSING TO AGN SPECTRA SO MASS-TRANSFER INDUCED ACTIVITY IN GALAXIES LA English DT Proceedings Paper CT International Astrophysics Conference on Mass-Transfer Induced Activity in Galaxies CY APR 26-30, 1993 CL UNIV KENTUCKY, LEXINGTON, KY SP UNIV KENTUCKY, NASA HO UNIV KENTUCKY C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-47195-8 PY 1994 BP 61 EP 62 DI 10.1017/CBO9780511564789.014 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB25F UT WOS:A1994BB25F00013 ER PT B AU HOLBROOK, J HEAP, S MALUMUTH, E SHORE, S WALLER, B AF HOLBROOK, J HEAP, S MALUMUTH, E SHORE, S WALLER, B BE Shlosman, I TI HST IMAGERY OF THE STARBURST NUCLEUS OF M83 SO MASS-TRANSFER INDUCED ACTIVITY IN GALAXIES LA English DT Proceedings Paper CT International Astrophysics Conference on Mass-Transfer Induced Activity in Galaxies CY APR 26-30, 1993 CL UNIV KENTUCKY, LEXINGTON, KY SP UNIV KENTUCKY, NASA HO UNIV KENTUCKY C1 NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,GREENBELT,MD 20771. OI Holbrook, Jarita/0000-0003-4920-6686 NR 0 TC 1 Z9 1 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-47195-8 PY 1994 BP 109 EP 110 DI 10.1017/CBO9780511564789.021 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB25F UT WOS:A1994BB25F00020 ER PT J AU WINCHESKI, B FULTON, JP NATH, S NAMKUNG, M SIMPSON, JW AF WINCHESKI, B FULTON, JP NATH, S NAMKUNG, M SIMPSON, JW TI SELF-NULLING EDDY-CURRENT PROBE FOR SURFACE AND SUBSURFACE FLAW DETECTION SO MATERIALS EVALUATION LA English DT Article C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. LOCKHEED ENGN & CO,HAMPTON,VA 23666. RP WINCHESKI, B (reprint author), ANALYT SERV & MAT INC,107 RES DR,HAMPTON,VA 23666, USA. RI Namkung, Min/E-1533-2012 NR 6 TC 15 Z9 15 U1 0 U2 1 PU AMER SOC NON-DESTRUCTIVE TEST PI COLUMBUS PA 1711 ARLINGATE LANE PO BOX 28518, COLUMBUS, OH 43228-0518 SN 0025-5327 J9 MATER EVAL JI Mater. Eval. PD JAN PY 1994 VL 52 IS 1 BP 22 EP 27 PG 6 WC Materials Science, Characterization & Testing SC Materials Science GA MR426 UT WOS:A1994MR42600003 ER PT B AU GAWRONSKI, W AF GAWRONSKI, W BE Guttalu, RS TI SEQUENTIAL DESIGN OF A LINEAR-QUADRATIC CONTROLLER FOR THE DEEP SPACE NETWORK ANTENNAS SO MECHANICS AND CONTROL LA English DT Proceedings Paper CT 5th Workshop on Control Mechanics, in honor of the 70th Birthday of Professor Angelo Miele CY JAN 21-23, 1992 CL UNIV SO CALIF, LOS ANGELES, CA SP UNIV SO CALIF, DEPT MECH ENGN HO UNIV SO CALIF C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44669-3 PY 1994 BP 165 EP 185 PG 21 WC Automation & Control Systems; Engineering, Mechanical SC Automation & Control Systems; Engineering GA BA54S UT WOS:A1994BA54S00013 ER PT S AU GOKOGLU, SA STEWART, GD COLLINS, J ROSNER, DE AF GOKOGLU, SA STEWART, GD COLLINS, J ROSNER, DE BE Desu, SB Beach, DB Wessels, BW Gokoglu, S TI NUMERICAL-ANALYSIS OF AN IMPINGING JET REACTOR FOR THE CVD AND GAS-PHASE NUCLEATION OF TITANIA SO METAL-ORGANIC CHEMICAL VAPOR DEPOSITION OF ELECTRONIC CERAMICS SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Metal-Organic Chemical Vapor Deposition of Electronic Ceramics, at the 1993 Fall Meeting of the Materials-Research-Society CY NOV 29-DEC 03, 1993 CL BOSTON, MA SP MAT RES SOC C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 1 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-234-0 J9 MATER RES SOC SYMP P PY 1994 VL 335 BP 171 EP 176 PG 6 WC Electrochemistry; Materials Science, Ceramics SC Electrochemistry; Materials Science GA BA46A UT WOS:A1994BA46A00024 ER PT S AU HEPP, AF ANDRAS, MT DURAJ, SA CLARK, EB HEHEMANN, DG SCHEIMAN, DA FANWICK, PE AF HEPP, AF ANDRAS, MT DURAJ, SA CLARK, EB HEHEMANN, DG SCHEIMAN, DA FANWICK, PE BE Desu, SB Beach, DB Wessels, BW Gokoglu, S TI SYNTHESIS AND DECOMPOSITION OF A NOVEL CARBOXYLATE PRECURSOR TO INDIUM OXIDE SO METAL-ORGANIC CHEMICAL VAPOR DEPOSITION OF ELECTRONIC CERAMICS SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Metal-Organic Chemical Vapor Deposition of Electronic Ceramics, at the 1993 Fall Meeting of the Materials-Research-Society CY NOV 29-DEC 03, 1993 CL BOSTON, MA SP MAT RES SOC C1 NASA,LEWIS RES CTR,PHOTOVOLT BRANCH,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-234-0 J9 MATER RES SOC SYMP P PY 1994 VL 335 BP 227 EP 232 PG 6 WC Electrochemistry; Materials Science, Ceramics SC Electrochemistry; Materials Science GA BA46A UT WOS:A1994BA46A00032 ER PT J AU SANKARAN, SN HERRMANN, RK OUTLAW, RA CLARK, RK AF SANKARAN, SN HERRMANN, RK OUTLAW, RA CLARK, RK TI BARRIER-LAYER FORMATION AND ITS CONTROL DURING HYDROGEN PERMEATION THROUGH TI-24AL-11NB ALLOY SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Article ID TI3AL-NB ALLOY; TEMPERATURE; EMBRITTLEMENT AB Hydrogen transport through Ti-24Al-11Nb (at. pct) alloy has been measured using ultrahigh vacuum permeation techniques over the temperature range of 500-degrees-C to 900-degrees-C and a hydrogen pressure range of 20 to 1333 Pa. The hydrogen uptake behavior of the alloy is influenced by even very small amounts of contaminants in the hydrogen gas. It is shown that contaminants such as CO and H2O are released from the walls of the vacuum system by the incoming hydrogen gas due to collision-induced desorption and that these species form a barrier layer. In the presence of the barrier layer, the hydrogen-permeation behavior of the alloy has two apparent temperature regimes: a high-temperature regime where the barrier layer has minimal effect, and a low-temperature regime where the barrier layer inhibits the hydrogen uptake. A physical model to explain this behavior is presented. It is further shown that the effect of the barrier layer can be minimized by maintaining dynamic flow conditions in the upstream chamber. Under these conditions, the transport process is diffusion-limited: the permeability has a weak temperature dependence, but the diffusivity has a strong temperature dependence. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. RP SANKARAN, SN (reprint author), ANALYT SERV & MAT INC,HAMPTON,VA 23666, USA. NR 38 TC 6 Z9 6 U1 0 U2 1 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JAN PY 1994 VL 25 IS 1 BP 89 EP 97 DI 10.1007/BF02646678 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA MR076 UT WOS:A1994MR07600010 ER PT J AU ASTHANA, R AF ASTHANA, R TI AN EMPIRICAL CORRELATION BETWEEN CONTACT ANGLES AND SURFACE-TENSION IN SOME CERAMIC-METAL SYSTEMS SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE LA English DT Note ID WETTABILITY; SOLIDS; ALUMINUM; ENERGY C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP ASTHANA, R (reprint author), CLEVELAND STATE UNIV,DEPT CHEM ENGN,CLEVELAND,OH, USA. NR 27 TC 14 Z9 15 U1 1 U2 2 PU MINERALS METALS MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 SN 1073-5623 J9 METALL MATER TRANS A JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. PD JAN PY 1994 VL 25 IS 1 BP 225 EP 230 DI 10.1007/BF02646692 PG 6 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA MR076 UT WOS:A1994MR07600024 ER PT J AU PODOSEK, FA CASSEN, P AF PODOSEK, FA CASSEN, P TI THEORETICAL, OBSERVATIONAL, AND ISOTOPIC ESTIMATES OF THE LIFETIME OF THE SOLAR NEBULA SO METEORITICS LA English DT Review ID T-TAURI STARS; MAIN-SEQUENCE STARS; MURCHISON CARBONACEOUS CHONDRITE; ANGRA-DOS-REIS; X-RAY SOURCES; HL-TAURI; REFRACTORY INCLUSIONS; INTERSTELLAR-MEDIUM; CIRCUMSTELLAR GAS; ACCRETION DISKS AB There are a variety of isotopic data for meteorites which suggest that the protostellar nebula existed and was involved in making planetary materials for some 10(7) yr or more. Many cosmochemists, however, advocate alternative interpretations of such data in order to comply with a perceived constraint, from theoretical considerations, that the nebula existed only for a much shorter time, usually stated as less than or equal to 10(6) yr. In this paper, we review evidence relevant to solar nebula duration which is available through three different disciplines: theoretical modelling of star formation, isotopic data from meteorites, and astronomical observations of T Tauri stars. Theoretical models based on observations of present star-forming regions indicate that stars like the Sun form by dynamical gravitational collapse of dense cores of cold molecular clouds in the interstellar medium. The collapse to a star and disk occurs rapidly, on a time scale of the order 10(5) yr. Disks evolve by dissipating energy while redistributing angular momentum, but it is difficult to predict the rate of evolution, particularly for low mass (compared to the star) disks which nonetheless still contain enough material to account for the observed planetary system There is no compelling evidence, from available theories of disk structure and evolution, that the solar nebula must have evolved rapidly and could not have persisted for more than 1 Ma. In considering chronologically relevant isotopic data for meteorites, we focus on three methodologies: absolute ages by U-Pb/Pb-Pb, and relative ages by short-lived radionuclides (especially Al-26) and by evolution of Sr-87/Sr-86. Two kinds of meteoritic materials-refractory inclusions such as CAIs and differentiated meteorites (eucrites and angrites)-appear to have experienced potentially dateable nebular events. In both cases, the most straightforward interpretations of the available data indicate nebular events spanning several Ma, We also consider alternative interpretations, particularly the hypothesis of radically heterogeneous distribution of Al-26, which would avoid these chronological interpretations. The principal impetus for such alternative interpretations seems to be precisely the obviation of the chronological interpretation (i.e., the presumption rather than the inference of a short (less than or equal to 1 Ma) lifetime of the nebula). Astronomical observations of T Tauri stars indicate that the presence of dusty disks is a common if not universal feature, that the disks are massive enough to accomodate a planetary system such as ours, and that at least some persist for 10(7) yr or more. The results are consistent with the time scales inferred from the meteorite isotopic data. They cannot be considered conclusive with regard to solar nebula time scales, however, in part because it is difficult to relate disk observations to processes that affect meteorites, and in part because the ages assigned for these stars could be wrong by a factor of several in either direction. We conclude that the balance of available evidence favors the view that the nebula existed and was active for at least several Ma. However, because the evidence is not definitive, it is important that the issue be perceived to be an open question, whose answer should be sought rather than presumed. C1 WASHINGTON UNIV,DEPT EARTH & PLANETARY SCI,ST LOUIS,MO 63130. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP PODOSEK, FA (reprint author), WASHINGTON UNIV,MCDONNELL CTR SPACE SCI,ST LOUIS,MO 63130, USA. NR 131 TC 119 Z9 119 U1 0 U2 3 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD JAN PY 1994 VL 29 IS 1 BP 6 EP 25 PG 20 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA MT061 UT WOS:A1994MT06100005 ER PT J AU OKEEFE, JA AF OKEEFE, JA TI ORIGIN OF TEKTITES SO METEORITICS LA English DT Article ID CRETACEOUS-TERTIARY BOUNDARY; IMPACT AB The origin of tektites has been obscure because of the following dilemma. The application of physical principles to the data available on tektites points strongly to origin from one or more lunar volcanoes; but few glasses of tektite composition have hitherto been reported from the lunar samples. Instead, the lunar silicic glasses consist chiefly of a material very rich in K2O and poor in MgO. The ratio of K2O/MgO is higher in these glasses than in any tektites reported. The solution of the dilemma seems to come from the study of some recently discovered terrestrial deposits of tektite glass with high values of K2O/MgO at the Cretaceous-tertiary boundary. These glasses are found to be very vulnerable to crystallization into sandine or to alteration to smectite. These end products are known and are more abundant than any terrestrial deposits of tektite glass. It seems possible that, in fact, the moon produces tektite gf ass, mostly of the high K2O-low MgO type; but on Earth these deposits are destroyed. The much less abundant deposits with lower K and higher Mg are observed because they survive. Other objections to the lunar origin hypothesis appear to be answerable. RP OKEEFE, JA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 36 TC 11 Z9 11 U1 0 U2 3 PU METEORITICAL SOC PI FAYETTEVILLE PA DEPT CHEMISTRY/BIOCHEMISTRY, UNIV ARKANSAS, FAYETTEVILLE, AR 72701 SN 0026-1114 J9 METEORITICS JI Meteoritics PD JAN PY 1994 VL 29 IS 1 BP 73 EP 78 PG 6 WC Geochemistry & Geophysics SC Geochemistry & Geophysics GA MT061 UT WOS:A1994MT06100011 ER PT J AU TURK, J VIVEKANANDAN, J MARZANO, FS HOOD, RE SPENCER, RW LAFONTAINE, FJ AF TURK, J VIVEKANANDAN, J MARZANO, FS HOOD, RE SPENCER, RW LAFONTAINE, FJ TI ACTIVE AND PASSIVE MICROWAVE REMOTE-SENSING OF PRECIPITATING STORMS DURING CAPE .1. ADVANCED MICROWAVE PRECIPITATION RADIOMETER AND POLARIMETRIC RADAR MEASUREMENTS AND MODELS SO METEOROLOGY AND ATMOSPHERIC PHYSICS LA English DT Article ID CLOUD-RADIATION MODEL; MULTIPARAMETER RADAR; 183 GHZ; SATELLITE MEASUREMENTS; SIZE DISTRIBUTION; DEEP CONVECTION; ICE PARTICLES; SIMULATIONS; RETRIEVAL; FREQUENCIES AB The Advanced Microwave Precipitation Radiometer (AMPR), an across-track scanning, four-channel (10.7, 19.35, 37.1, 85.5 GHz) total-power radiometer system, was instrumented aboard a NASA ER-2 aircraft during the 1991 CaPE (Convection and Precipitation/Electrification) project in central Florida. At a 20 km flight altitude, the AMPR provides fine-scale microwave imagery of Earth surfaces and its atmosphere, and is well-suited for diverse hydrological applications. During overflights of precipitation, coincident ground-based radar measurements were taken with the NCAR CP-2 dual-frequency, dual-polarization radar system. After remapping the radar data into a format compatible with the AMPR scanning geometry, the radar-derived profiles of rain, melting, and frozen hydrometeors are compared against the AMPR equivalent blackbody brightness temperature (T(B)) imagery. Microwave radiative transfer modeling procedures incorporating the radar-derived hydrometeor profiles were used to simulate the multifrequency AMPR imagery over both land and ocean background ER-2 flights. Within storm cores over land, columnar ice water paths up to 20 kg m-2 gradually depressed the 85 GHz T(B) as low as 100 K. The presence of tall vertical reflectivity columns encompassing > 20 kg m-2 columnar ice water path often produced 37 GHz T(B) < 85 GHz T(B) directly over the core. Over ocean, the 10 GHz channel provided the clearest correlation with the rainfall amounts, whereas the 19 GHz channel saturated near 260 K past 10-15 mm hr-1 rain rate as determined by radar. Scattering by ice and melting ice at 37 GHz produced T(B) ambiguities over both raining and clear-ocean regions. Sensitivity to the columnar mixed phase region via the intermediate frequencies (19 and 37 GHz) is demonstrated and explained with the radar-derived T(B) modeling. By superimposing vertical profiles of cloud liquid water (which this radar cannot measure) upon the radar-inferred hydrometeor structure, additional information on the location of the peak cloud water and its amount relative to the vertical ice structure can be noted, along with a possible inference of the dominant ice particle size within the upper storm core. These results suggest that as the resolution of passive radiometric measurements approaches dimensions where the antenna beams become increasingly filled by the cloud, precipitation retrieval via multifrequency T(B) input is well-suited to a vertical profiling-type algorithm. This is further examined in Part II of this manuscript, where the radar-derived vertical hydrometeor profiles are used to test the applicability of a multispectral cloud model-based approach to passive microwave precipitation retrieval from space. C1 NATL CTR ATMOSPHER RES,RES APPLICAT PROGRAM,BOULDER,CO 80307. UNIV ROMA LA SAPIENZA,DIPARTIMENTO INGN ELETTRON,I-00184 ROME,ITALY. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. UNIV SPACE RES ASSOC,NASA,MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. RP TURK, J (reprint author), COLORADO STATE UNIV,DEPT ELECT ENGN,FT COLLINS,CO 80523, USA. NR 39 TC 8 Z9 8 U1 0 U2 0 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7971 J9 METEOROL ATMOS PHYS JI Meteorol. Atmos. Phys. PY 1994 VL 54 IS 1-4 BP 3 EP 27 DI 10.1007/BF01030050 PG 25 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA PN896 UT WOS:A1994PN89600002 ER PT J AU HEYMSFIELD, GM FULTON, R AF HEYMSFIELD, GM FULTON, R TI PASSIVE MICROWAVE AND INFRARED STRUCTURE OF MESOSCALE CONVECTIVE SYSTEMS SO METEOROLOGY AND ATMOSPHERIC PHYSICS LA English DT Article ID PRECIPITATING CLOUD; RADIATIVE-TRANSFER; 183 GHZ; SQUALL-LINE; SATELLITE; RAINFALL; ORGANIZATION; FREQUENCIES; OKLAHOMA; DOPPLER AB The precipitation structure of mature Mesoscale Convective Systems (MCS) is examined in both the midlatitudes and the tropics using SSM/I microwave measurements, geostationary satellite observations, and ground-based radar observations. Discussion includes qualitative comparisons between midlatitude and tropical MCS cases, with particular emphasis on the delineation of convective and stratiform regions and the characterization of microwave polarization difference temperatures in the MCSs. Implications are given regarding the importance of the vertical precipitation structure on top of the atmosphere (TOA) microwave temperatures and for rain retrieval algorithms using measurements from space. Some of the principle findings include the ability of passive microwave brightness temperature measurements to distinguish stratiform and convective regions of MCSs for both tropical and midlatitude cases and over land and ocean backgrounds. Convective regions typically had low differences between the vertical and horizontal brightness temperatures while the stratiform regions have larger differences, and these differences are likely related to the spatial microphysical variations in the upper levels of the precipitation region. Several cases were found in midlatitudes and one case in the tropics where the lowest infrared (IR) brightness temperatures were displaced into the anvil region and were not colocated with the coldest microwave temperatures. Life cycle dependence of the displacement is suggested, but the SSM/I measurements with a maximum of twice daily coverage over the same location were inadequate to answer this question. C1 SCI SYST & APPLICAT,LANHAM,MD. RP HEYMSFIELD, GM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 912,GREENBELT,MD 20771, USA. NR 39 TC 25 Z9 25 U1 1 U2 4 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7971 J9 METEOROL ATMOS PHYS JI Meteorol. Atmos. Phys. PY 1994 VL 54 IS 1-4 BP 123 EP 139 DI 10.1007/BF01030055 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA PN896 UT WOS:A1994PN89600007 ER PT J AU VANDEGRIEND, AA OWE, M AF VANDEGRIEND, AA OWE, M TI MICROWAVE VEGETATION OPTICAL DEPTH AND INVERSE MODELING OF SOIL EMISSIVITY USING NIMBUS SMMR SATELLITE-OBSERVATIONS SO METEOROLOGY AND ATMOSPHERIC PHYSICS LA English DT Article ID DIELECTRIC SPECTRUM; SURFACE MOISTURE; SENSITIVITY; RADIOMETERS; SCATTERING; CANOPIES; INDEX AB A radiative transfer model has been used to determine the large scale effective 6.6 GHz and 37 GHz optical depths of the vegetation cover. Knowledge of the vegetation optical depth is important for satellite-based large scale soil moisture monitoring using microwave radiometry. The study is based on actual observed large scale surface soil moisture data and observed dual polarization 6.6 and 37 GHz Nimbus/SMMR brightness temperatures over a 3-year period. The derived optical depths have been compared with microwave polarization differences and polarization ratios in both frequencies and with Normalized Difference Vegetation Index (NDVI) values from NOAA/AVHRR. A synergistic approach to derive surface soil emissivity from satellite observed brightness temperatures by inverse modelling is described. This approach improves the relationship between satellite derived surface emissivity and large scale top soil moisture from R2 = 0.45 (no correction for vegetation) to R2 = 0.72 (after correction for vegetation). This study also confirms the relationship between the microwave-based MPDI and NDVI earlier described and explained in the literature. C1 NASA,GODDARD SPACE FLIGHT CTR,GSFC,HYDROL SCI BRANCH,GREENBELT,MD 20771. RP VANDEGRIEND, AA (reprint author), FREE UNIV AMSTERDAM,INST EARTH SCI,DE BOELELAAN 1085,1081 HV AMSTERDAM,NETHERLANDS. NR 32 TC 47 Z9 47 U1 2 U2 13 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7971 J9 METEOROL ATMOS PHYS JI Meteorol. Atmos. Phys. PY 1994 VL 54 IS 1-4 BP 225 EP 239 PG 15 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA PN896 UT WOS:A1994PN89600014 ER PT J AU KEENAN, TD FERRIER, B SIMPSON, J AF KEENAN, TD FERRIER, B SIMPSON, J TI DEVELOPMENT AND STRUCTURE OF A MARITIME CONTINENT THUNDERSTORM SO METEOROLOGY AND ATMOSPHERIC PHYSICS LA English DT Article ID VERTICAL VELOCITY EVENTS; PRECIPITATION DEVELOPMENT; MESOSCALE SYSTEMS; CONVECTIVE CLOUD; CUMULUS MERGERS; SQUALL LINES; GATE; MODEL; RADAR; CUMULONIMBUS AB The evaluation of a maritime continent thunderstorm complex (Hector) occurring over Bathurst and Melville Islands north of Darwin, Australia (12-degrees-S, 131-degrees-E) is investigated primarily using Doppler radar data. Thunderstorm formation follows the development of sea breeze circulations and a period of shallow non-precipitating convection. Evidence exists for initiation of long-lived and organised convection on the sea breeze fronts, although short-lived, scattered convection is apparent earlier in the day. Merging of the convective systems is observed in regions of enhanced low-level convergence related to sea breeze circulations. The merged convective complex is initially aligned in an almost east-west direction consistent with the low-level forcing. The merged complex results in rapid vertical development with updraughts reaching 40 m s-1 and echo tops reaching 20 km height. Maximum precipitation production occurs during this merger phase. On the perimeter of the merged convective complex, evidence,exists for front-to-rear updraughts sloped over lower-level downdraughts with rear-to-front relative flow and forward propagating cold pools. The mature phase is dominated by this convection and the complex re-orientates in the prevailing easterly vertical shear to an approximate north-south direction, then moves westward off the islands with the classic multicellular squall-like structure. The one-dimensional cloud model of Ferrier and Houze (1989) used with a four class ice formulation reproduced the cloud top height, updraught structure and echo profile very well. To test the importance of ice physics upon thunderstorm development, several sensitivity tests were made removing the effects of the ice phase. All of these model clouds reached nearly 20 km, although simulations without the effects of ice had updraughts reduced from about 40 m s-1 to 30 m s-1. The simulated convection was more sensitive to changes in environmental conditions and parameterised cloud dynamics. The strong intensity of the convection was largely accounted for by increasing equivalent potential temperatures due to diurnal heating of the surface layer. The vertical velocity and radar structure of the island thunderstorm has more similarity with continental rather than oceanic convection. Maximum vertical velocities, in particular are almost an order of magnitude greater than typical of oceanic convection. With the intense updraughts, even in the low shear environment, there is evidence for mesoscale circulations within the convection. C1 USRA,NASA GODDARD SPACE FLIGHT CTR,GREENBELT,MD. RP KEENAN, TD (reprint author), BUR METEOROL,RES CTR,POB 1289KGPO,MELBOURNE 3001,AUSTRALIA. NR 79 TC 28 Z9 28 U1 0 U2 7 PU SPRINGER-VERLAG WIEN PI VIENNA PA SACHSENPLATZ 4-6, PO BOX 89, A-1201 VIENNA, AUSTRIA SN 0177-7971 J9 METEOROL ATMOS PHYS JI Meteorol. Atmos. Phys. PY 1994 VL 53 IS 3-4 BP 185 EP 222 DI 10.1007/BF01029612 PG 38 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA NW883 UT WOS:A1994NW88300006 ER PT B AU LEE, SK ZHAO, XM AF LEE, SK ZHAO, XM GP IEEE TI Sensor planning with Hierarchically Distributed Perception Net SO MFI '94 - 1994 IEEE INTERNATIONAL CONFERENCE ON MULTISENSOR FUSION AND INTEGRATION FOR INTELLIGENT SYSTEMS LA English DT Proceedings Paper CT 1994 IEEE International Conference on Multisensor Fusion and Integration for Intelligent Systems CY OCT 02-05, 1994 CL LAS VEGAS, NV SP IEEE, Soc Instrumentat & Control, Japan, Robot Soc Japan 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 0-7803-2072-7 PY 1994 BP 591 EP 598 PG 8 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Instruments & Instrumentation; Mathematics, Applied; Remote Sensing SC Automation & Control Systems; Computer Science; Engineering; Instruments & Instrumentation; Mathematics; Remote Sensing GA BD66G UT WOS:A1994BD66G00080 ER PT B AU TAMINGER, KMB BREWER, WD DICUS, DL AF TAMINGER, KMB BREWER, WD DICUS, DL BE Ankem, S Hall, JA TI COMBINED TEMPERATURE, STRESS, AND ATMOSPHERIC PRESSURE EFFECTS ON RESPONSE OF SCS-6/TI beta 21S COMPOSITE SO MICROSTRUCTURE/PROPERTY RELATIONSHIPS OF TITANIUM ALLOYS LA English DT Proceedings Paper CT Harold Margolin Symposium on Microstructure/Property Relationships of Titanium Alloys, at the 1994 TMS Spring Meeting CY FEB 27-MAR 03, 1994 CL SAN FRANCISCO, CA SP MINERALS MET & MAT SOC, TITANIUM COMM, MINERALS MET & MAT SOC, MECH MET COMM C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 1 U2 1 PU MINERALS, METALS & MATERIALS SOC PI WARRENDALE PA 420 COMMONWEALTH DR, WARRENDALE, PA 15086 BN 0-87339-246-9 PY 1994 BP 133 EP 141 PG 9 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA BD06Z UT WOS:A1994BD06Z00015 ER PT B AU SHIUE, JC AF SHIUE, JC BE Lurie, JB Pampaloni, P Shiue, JC TI TMI, THE MICROWAVE RADIOMETER FOR THE TROPICAL RAINFALL MEASUREMENT MISSION SO MICROWAVE INSTRUMENTATION AND SATELLITE PHOTOGRAMMETRY FOR REMOTE SENSING OF THE EARTH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Satellite Photogrammetry and GIS/Conference on Microwave Instrumentation for Remote Sensing of the Earth CY SEP 28-30, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, CNR, ITALIAN ASSOC REMOTE SENSING C1 NASA,GODDARD SPACE FLIGHT CTR,MICROWAVE SENSORS 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 0-8194-1643-6 J9 P SOC PHOTO-OPT INS PY 1994 VL 2313 BP 117 EP 128 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BC28Z UT WOS:A1994BC28Z00013 ER PT B AU DALU, G PRABHAKARA, C POMPEI, A AF DALU, G PRABHAKARA, C POMPEI, A BE Lurie, JB Pampaloni, P Shiue, JC TI THE BEAM FILLING EFFECT IN THE MICROWAVE REMOTE SENSING OF PRECIPITATION SO MICROWAVE INSTRUMENTATION AND SATELLITE PHOTOGRAMMETRY FOR REMOTE SENSING OF THE EARTH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Satellite Photogrammetry and GIS/Conference on Microwave Instrumentation for Remote Sensing of the Earth CY SEP 28-30, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, CNR, ITALIAN ASSOC REMOTE SENSING 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 0-8194-1643-6 J9 P SOC PHOTO-OPT INS PY 1994 VL 2313 BP 148 EP 156 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BC28Z UT WOS:A1994BC28Z00016 ER PT S AU INY, O BARMATZ, M AF INY, O BARMATZ, M BE Iskander, MF Lauf, RJ Sutton, WH TI DECAY METHOD FOR MEASURING COMPLEX DIELECTRIC CONSTANTS DURING MICROWAVE PROCESSING SO MICROWAVE PROCESSING OF MATERIALS IV SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT 4th MRS Symposium on Microwave Processing of Materials, at the 1994 MRS Spring Meeting CY APR 04-08, 1994 CL SAN FRANCISCO, CA SP MAT RES SOC C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-247-2 J9 MATER RES SOC SYMP P PY 1994 VL 347 BP 241 EP 245 PG 5 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BC15T UT WOS:A1994BC15T00027 ER PT S AU JACKSON, HW BARMATZ, M WAGNER, P AF JACKSON, HW BARMATZ, M WAGNER, P BE Iskander, MF Lauf, RJ Sutton, WH TI MICROWAVE POWER ABSORPTION PROFILE IN A CYLINDRICAL SAMPLE CONTAINED IN A RESONANT CYLINDRICAL CAVITY SO MICROWAVE PROCESSING OF MATERIALS IV SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT 4th MRS Symposium on Microwave Processing of Materials, at the 1994 MRS Spring Meeting CY APR 04-08, 1994 CL SAN FRANCISCO, CA SP MAT RES SOC C1 JET PROP LAB,PASADENA,CA 91109. 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 1-55899-247-2 J9 MATER RES SOC SYMP P PY 1994 VL 347 BP 317 EP 323 PG 7 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BC15T UT WOS:A1994BC15T00038 ER PT S AU LITT, J KURTKAYA, M DUYAR, A AF LITT, J KURTKAYA, M DUYAR, A BE Chinni, MJ TI SENSOR FAULT-DETECTION AND DIAGNOSIS SIMULATION OF A HELICOPTER ENGINE IN AN INTELLIGENT CONTROL FRAMEWORK SO MILITARY, GOVERNMENT AND AEROSPACE SIMULATION: PROCEEDINGS OF THE 1994 SIMULATION MULTICONFERENCE SE SIMULATION SERIES LA English DT Proceedings Paper CT 1994 Simulation Multiconference: Military, Government and Aerospace Simulation CY APR 10-15, 1994 CL SAN DIEGO, CA SP SOC COMP SIMULAT C1 USA,RES LAB,LEWIS RES CTR,VEHICLE PROPUL DIRECTORATE,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0735-9276 BN 1-56555-072-2 J9 SIMUL SERIES PY 1994 VL 26 IS 6 BP 143 EP 148 PG 6 WC Computer Science, Interdisciplinary Applications SC Computer Science GA BA76Y UT WOS:A1994BA76Y00021 ER PT B AU WARREN, WH HOFFLEIT, D AF WARREN, WH HOFFLEIT, D BE Corbally, CJ Gray, RO Garrison, RF TI An analysis of MK spectral types in the new Bright Star Catalogue (BSC) SO MK PROCESS AT 50 YEARS: A POWERFUL TOOL FOR ASTROPHYSICAL INSIGHT SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Workshop of the Vatican-Observatory on the MK Process at 50 Years - A Powerful Tool for Astrophysical Insight CY SEP, 1993 CL TUCSON, AZ SP Vatican Observatory C1 NASA,GODDARD SPACE FLIGHT CTR,HUGHES STX CORP,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 0-937707-79-1 J9 ASTR SOC P PY 1994 VL 60 BP 31 EP 38 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BD88A UT WOS:A1994BD88A00004 ER PT B AU COLOMBANO, S COMPTON, M RAGHAVAN, B AF COLOMBANO, S COMPTON, M RAGHAVAN, B BE Guasch, A Huber, RM TI GOAL DIRECTED MODEL INVERSION - A STUDY OF DYNAMIC BEHAVIOR SO MODELLING AND SIMULATION, ESM 94 LA English DT Proceedings Paper CT 1994 European Simulation Multiconference - Modelling and Simulation 1994 CY JUN 01-03, 1994 CL UNIV POLITECN CATALYNYA, BARCELONA, SPAIN SP SOC COMP SIMULAT INT HO UNIV POLITECN CATALYNYA C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 BN 1-56555-028-5 PY 1994 BP 455 EP 459 PG 5 WC Engineering, Aerospace; Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Manufacturing; Engineering, Electrical & Electronic SC Engineering; Computer Science GA BB79P UT WOS:A1994BB79P00080 ER PT B AU UHDELACOVARA, J WEED, D MCCLEARY, B WOOD, R AF UHDELACOVARA, J WEED, D MCCLEARY, B WOOD, R BE Guasch, A Huber, RM TI THE RAPID DEVELOPMENT PROCESS APPLIED TO SOYUZ SIMULATION PRODUCTION SO MODELLING AND SIMULATION, ESM 94 LA English DT Proceedings Paper CT 1994 European Simulation Multiconference - Modelling and Simulation 1994 CY JUN 01-03, 1994 CL UNIV POLITECN CATALYNYA, BARCELONA, SPAIN SP SOC COMP SIMULAT INT HO UNIV POLITECN CATALYNYA C1 NASA,JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 BN 1-56555-028-5 PY 1994 BP 1071 EP 1076 PG 6 WC Engineering, Aerospace; Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Manufacturing; Engineering, Electrical & Electronic SC Engineering; Computer Science GA BB79P UT WOS:A1994BB79P00186 ER PT J AU GULLUOGLU, AN TSAI, CT HARTLEY, CS CHAIT, A AF GULLUOGLU, AN TSAI, CT HARTLEY, CS CHAIT, A TI DISLOCATION GENERATION IN GAAS CRYSTALS GROWN BY THE BRIDGMAN METHOD USING A CRYSTALLOGRAPHIC MODEL SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING LA English DT Article ID DYNAMICS; PREDICTION AB The objective of this paper is to predict the dislocation density in GaAs crystals grown from the melt using a crystallographic model. The effects of the temperature gradient field, the growth direction and the initial dislocation density on the dislocation multiplication in the crystal are investigated. The results show that a small increment in temperature gradient results in a large increment in dislocation density. Comparison of the calculated dislocation density for the GaAs crystal grown along the [001] and [111) directions shows that the growth direction has a significant effect on dislocation multiplication. Dislocation multiplication behaviour in the individual slip system is also investigated. The dislocation density in the slip system is strongly affected by the resolved shear stress in such a slip system, but only weakly affected by the initial dislocation density in the seed crystal. C1 FLORIDA ATLANTIC UNIV,DEPT MECH ENGN,BOCA RATON,FL 33431. NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RI Tsai, C.T./A-4605-2008 NR 16 TC 5 Z9 5 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA TECHNO HOUSE, REDCLIFFE WAY, BRISTOL, ENGLAND BS1 6NX SN 0965-0393 J9 MODEL SIMUL MATER SC JI Model. Simul. Mater. Sci. Eng. PD JAN PY 1994 VL 2 IS 1 BP 67 EP 78 DI 10.1088/0965-0393/2/1/005 PG 12 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA MZ575 UT WOS:A1994MZ57500005 ER PT S AU GORMAN, CB VANDOREMAELE, GHJ MARDER, SR AF GORMAN, CB VANDOREMAELE, GHJ MARDER, SR BE Birge, RR TI OPTIMIZATION OF MATERIALS FOR 2ND-ORDER NONLINEAR-OPTICAL APPLICATIONS SO MOLECULAR AND BIOMOLECULAR ELECTRONICS SE ADVANCES IN CHEMISTRY SERIES LA English DT Review CT Symposium on Molecular and Biomolecular Electronics, at the 4th Chemical Congress of North America (202nd National Meeting of the American-Chemical-Society) CY AUG 25-30, 1991 CL NEW YORK, NY SP AMER CHEM SOC, DIV BIOCHEM TECHNOL ID 2ND HARMONIC-GENERATION; LANGMUIR-BLODGETT-FILMS; CONJUGATED ORGANIC-MOLECULES; NON-LINEAR OPTICS; MATCHED 2ND-HARMONIC GENERATION; LIQUID-CRYSTALLINE POLYMERS; DOPANT ORIENTATION DYNAMICS; QUADRATIC HYPERPOLARIZABILITIES; ELECTRONIC HYPERPOLARIZABILITY; STILBENE DERIVATIVES AB This chapter outlines the approaches to the design and fabrication of organic nonlinear optical materials. First, the relationships between chemical structure and the first molecular hyperpolarizability (beta) are described. Then, issues related to incorporation of these molecules into bulk materials with useful second-order susceptibilities, (chi((2))) are reviewed, in particular, crystalline and thin-film materials. We describe advantages and disadvantages of the various approaches in light of recent results. C1 CALTECH, JET PROP LAB, PASADENA, CA 91109 USA. CALTECH, BECKMAN INST, CTR MOLEC MAT RESOURCE, PASADENA, CA 91125 USA. RI Gorman, Christopher/A-3463-2008 OI Gorman, Christopher/0000-0001-7367-2965 NR 184 TC 2 Z9 2 U1 0 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA SN 0065-2393 BN 0-8412-2698-9 J9 ADV CHEM SER PY 1994 VL 240 BP 179 EP 222 PG 44 WC Biochemistry & Molecular Biology; Biophysics; Chemistry, Multidisciplinary SC Biochemistry & Molecular Biology; Biophysics; Chemistry GA BB35X UT WOS:A1994BB35X00008 ER PT S AU CHARNLEY, SB AF CHARNLEY, SB BE Nenner, I TI CHEMISTRY OF STAR-FORMING CORES SO MOLECULES AND GRAINS IN SPACE: 50TH INTERNATIONAL MEETING OF PHYSICAL CHEMISTRY SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT Molecules and Grains in Space - 50th International Meeting of Physical Chemistry CY SEP, 1993 CL MONT SAINTE-ODILE, FRANCE SP AMER INST PHYS, SOC FRANCAISE CHIM, DIV CHIM PHYS, CTR NATL ETUDES SPATIALES, CNRS, SECTEUR CHIM, CNRS GROUPEMENT RECH PHYS CHIM MOLEC & GRAINS INTERSTELLAIRES, COMMISSARIAT ENERGIE ATOM, DIRECT SCI MATIERE, DRECAM, DIRECT RECH ETUDES & TECH, MINIST EDUC NATL, USDOD, EUROPEAN OFF AEROSPACE RES & DEV C1 NASA,AMES RES CTR,DIV SPACE SCI,MOFFETT FIELD,CA 94035. RI Charnley, Steven/C-9538-2012 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 1-56396-355-8 J9 AIP CONF PROC PY 1994 IS 312 BP 155 EP 159 PG 5 WC Astronomy & Astrophysics; Physics, Atomic, Molecular & Chemical; Spectroscopy SC Astronomy & Astrophysics; Physics; Spectroscopy GA BB56L UT WOS:A1994BB56L00018 ER PT B AU BAUCOM, RM MARCHELLO, JM HUGH, MK AF BAUCOM, RM MARCHELLO, JM HUGH, MK BE Drake, K Bauer, J Serafini, T Cheng, P TI POWDER CURTAIN PREPREG PROCESS FOR FIBER BUNDLE IMPREGNATION SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE POWDER-COATED TOWPREG; COST EFFECTIVE MANUFACTURING C1 NASA LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 793 EP 801 PG 9 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00073 ER PT B AU HERGENROTHER, PM BRYANT, RG JENSEN, BJ SMITH, JG WILKINSON, SP AF HERGENROTHER, PM BRYANT, RG JENSEN, BJ SMITH, JG WILKINSON, SP BE Drake, K Bauer, J Serafini, T Cheng, P TI CHEMISTRY AND PROPERTIES OF PHENYLETHYNYL TERMINATED IMIDE OLIGOMERS AND THEIR CURED POLYMERS SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE PHENYLETHYNYL TERMINATED OLIGOMERS; COMPOSITES; POLYIMIDES; STRUCTURAL RESINS C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 1 U2 1 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 961 EP 968 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00089 ER PT B AU BARCOHEN, Y MAL, AK LIH, SS AF BARCOHEN, Y MAL, AK LIH, SS BE Drake, K Bauer, J Serafini, T Cheng, P TI COMPOSITE MATERIAL PROPERTY NONDESTRUCTIVE CHARACTERIZATION USING OBLIQUELY INSONIFIED ULTRASONIC WAVES SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE NONDESTRUCTIVE EVALUATION; COMPOSITES; MECHANICAL PROPERTIES C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 1316 EP 1329 PG 14 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00121 ER PT B AU HSIEH, C METZLER, E FORSBERG, G MCHUGH, L ODONNELL, T CORDARO, J MARINACCI, L AF HSIEH, C METZLER, E FORSBERG, G MCHUGH, L ODONNELL, T CORDARO, J MARINACCI, L BE Drake, K Bauer, J Serafini, T Cheng, P TI CONDUCTIVE WHITE THERMAL CONTROL PAINT FOR SPACECRAFT .2. SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE ELECTRICALLY CONDUCTIVE; WHITE THERMAL CONTROL PAINTS C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 2 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 1679 EP 1693 PG 15 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00152 ER PT B AU MURTHY, PLN CHAMIS, CC MINNETYAN, L AF MURTHY, PLN CHAMIS, CC MINNETYAN, L BE Drake, K Bauer, J Serafini, T Cheng, P TI DESIGN FOR PROGRESSIVE DAMAGE IN FIBROUS COMPOSITE STRUCTURES SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE CERAMICS; COMPOSITES; COMPOSITE STRUCTURES; COMPUTATIONAL SIMULATION; DAMAGE; DEGRADATION; DURABILITY; FRACTURE; LAMINATES; STRUCTURAL DEGRADATION C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 1705 EP 1715 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00154 ER PT B AU YOUNG, PR SLEMP, WS SIOCHI, EJ AF YOUNG, PR SLEMP, WS SIOCHI, EJ BE Drake, K Bauer, J Serafini, T Cheng, P TI POLYMER PERFORMANCE IN LOW EARTH ORBIT - A COMPARISON OF FLIGHT RESULTS SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE SPACE ENVIRONMENT EFFECTS; POLYMERIC MATERIALS; CHEMICAL CHARACTERIZATION; LDEF; EOIM-III; MELEO C1 NASA,LANGLEY RES CTR,DIV MAT,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 2243 EP 2255 PG 13 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00202 ER PT B AU HINKLEY, JA WORKING, DC MARCHELLO, JM AF HINKLEY, JA WORKING, DC MARCHELLO, JM BE Drake, K Bauer, J Serafini, T Cheng, P TI GRAPHITE THERMOPLASTIC CONSOLIDATION KINETICS SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE COMPOSITE CONSOLIDATION; THERMOPLASTICS; TOW PLACEMENT C1 NASA,LANGLEY RES CTR,POLYMER MAT BRANCH,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 2604 EP 2611 PG 8 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00233 ER PT B AU CHAMIS, CC SHIAO, MC AF CHAMIS, CC SHIAO, MC BE Drake, K Bauer, J Serafini, T Cheng, P TI INTEGRATED PROBABILISTIC COMPOSITE DESIGN A PROPOSED NEW APPROACH SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE DESIGN ALLOWABLES; STRESS CONCENTRATIONS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 2806 EP 2819 PG 14 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00251 ER PT B AU CHAMIS, CC LIAW, DG SINGHAL, SN AF CHAMIS, CC LIAW, DG SINGHAL, SN BE Drake, K Bauer, J Serafini, T Cheng, P TI LONG TERM BEHAVIOR OF POLYMER MATRIX COMPOSITES SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE LAMINATE STRAIN; PLY STRESS; FRACTURE TIME C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 1 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 2820 EP 2828 PG 9 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00252 ER PT B AU SHIAO, MC CHAMIS, CC AF SHIAO, MC CHAMIS, CC BE Drake, K Bauer, J Serafini, T Cheng, P TI PROBABILISTIC DESIGN OF SMART COMPOSITE STRUCTURES SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn C1 NASA,LEWIS RES CTR GRP,SVERDRUP TECHNOL INC,BROOKPARK,OH 44142. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 3112 EP 3126 PG 15 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00280 ER PT B AU STCLAIR, TL PROGAR, DJ SIOCHI, EJ WORKING, DC AF STCLAIR, TL PROGAR, DJ SIOCHI, EJ WORKING, DC BE Drake, K Bauer, J Serafini, T Cheng, P TI LARC(TM)-IA POLYETHERIMIDE ADHESIVE SO MOVING FORWARD WITH 50 YEARS OF LEADERSHIP IN ADVANCED MATERIALS - 39TH INTERNATIONAL SAMPE SYMPOSIUM AND EXHIBITION, VOL 39, BOOKS 1 AND 2 LA English DT Proceedings Paper CT 39th International SAMPE Symposium and Exhibition: Moving Forward With 50 Years of Leadership in Advanced Materials CY APR 11-14, 1994 CL ANAHEIM, CA SP Soc Adv Mat & Proc Engn DE POLYIMIDE; ADHESIVE; HOT-MELT ADHESIVE C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC ADVANCEMENT MATERIAL & PROCESS ENGINEERING PI COVINA PA 843 W GLENTANA ST, PO BOX 2459, COVINA, CA 91722 BN 0-938994-69-7 PY 1994 BP 3206 EP 3211 PG 6 WC Materials Science, Multidisciplinary SC Materials Science GA BB69T UT WOS:A1994BB69T00287 ER PT S AU THOMPSON, DJ BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HARTMAN, RC HUNTER, SD SREEKUMAR, P CHIANG, J FIERRO, JM LIN, YC MICKELSON, PF NOLAN, PL KANBACH, G MAYERHASSELWANDER, HA MONTIGNY, CV RADECKE, HD KNIFFEN, DA MATTOX, JR SCHNEID, EJ AF THOMPSON, DJ BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HARTMAN, RC HUNTER, SD SREEKUMAR, P CHIANG, J FIERRO, JM LIN, YC MICKELSON, PF NOLAN, PL KANBACH, G MAYERHASSELWANDER, HA MONTIGNY, CV RADECKE, HD KNIFFEN, DA MATTOX, JR SCHNEID, EJ BE Courvoisier, TJL Blecha, A TI EGRET HIGH-ENERGY GAMMA-RAY OBSERVATIONS OF AGN - ENERGY-SPECTRA AND TIME VARIABILITY SO MULTI-WAVELENGTH CONTINUUM EMISSION OF AGN SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 159th Symposium of the International-Astronomical-Union on Multi-Wavelength Continuum Emission of AGN CY AUG 30-SEP 03, 1993 CL GENEVA, SWITZERLAND SP INT ASTRON UNION AB The Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray Observatory has detected more than 20 Active Galactic Nuclei (AGN) at photon energies above 30 MeV. C1 STANFORD UNIV,STANFORD,CA 94305. MAX PLANCK INST EXTRATERR PHYS,D-85748 GARCHING,GERMANY. HAMPDEN SYDNEY COLL,HAMPDEN SYDNEY,VA 23943. COMP SCI CORP,ASTRON PROGRAMS,COMPTON OBSERV,CTR SCI SUPPORT,GREENBELT,MD 20770. GRUMMAN AEROSP CORP,BETHPAGE,NY 11714. RP THOMPSON, DJ (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. RI Nolan, Patrick/A-5582-2009; Hunter, Stanley/D-2942-2012; Thompson, David/D-2939-2012 OI Thompson, David/0000-0001-5217-9135 NR 4 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 0-7923-2744-6 J9 IAU SYMP PY 1994 IS 159 BP 49 EP 52 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA86G UT WOS:A1994BA86G00008 ER PT S AU MADEJSKI, GM DONE, C TURNER, TJ MUSHOTZKY, RF SERLEMITSOS, P FIORE, F SIKORA, M BEGELMAN, MC AF MADEJSKI, GM DONE, C TURNER, TJ MUSHOTZKY, RF SERLEMITSOS, P FIORE, F SIKORA, M BEGELMAN, MC BE Courvoisier, TJL Blecha, A TI SOLVING THE MYSTERY OF THE PERIODICITY IN THE SEYFERT-GALAXY NGC-6814 SO MULTI-WAVELENGTH CONTINUUM EMISSION OF AGN SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 159th Symposium of the International-Astronomical-Union on Multi-Wavelength Continuum Emission of AGN CY AUG 30-SEP 03, 1993 CL GENEVA, SWITZERLAND SP INT ASTRON UNION ID X-RAY VARIABILITY; NGC-6814; NGC6814 AB The reports of periodic X-ray emission from the Seyfert galaxy NGC 6814 have motivated a number of exotic models for the active nucleus. Our ROSAT observation shows that while the nucleus of NGC 6814 is indeed an X-ray emitter, the periodicity is due to another source, most likely a Galactic accreting binary system, similar to 37 are min away. C1 CTR ASTROPHYS,CAMBRIDGE,MA 02138. COPERNICUS ASTRON CTR,WARSAW,POLAND. UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309. RP MADEJSKI, GM (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771, USA. RI done, chris/D-4605-2016 OI done, chris/0000-0002-1065-7239 NR 15 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 0-7923-2744-6 J9 IAU SYMP PY 1994 IS 159 BP 127 EP 130 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA86G UT WOS:A1994BA86G00016 ER PT B AU CAMPBELL, JW HOOVER, RB BAKER, PC AF CAMPBELL, JW HOOVER, RB BAKER, PC BE Hoover, RB Walker, ABC TI PERFORMANCE OF THE REPOLISHED S-056 GRAZING-INCIDENCE MIRROR IN THE MSFC AXAF TEST FACILITY SO MULTILAYER AND GRAZING INCIDENCE X-RAY/EUV OPTICS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Multilayer and Grazing Incidence X-Ray/EUV Optics II CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE RES LAB,HUNTSVILLE,AL 35812. 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 0-8194-1260-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2011 BP 75 EP 88 DI 10.1117/12.167220 PG 14 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BZ74W UT WOS:A1994BZ74W00007 ER PT B AU HOOVER, RB WALKER, ABC DEFOREST, CE ALLEN, MJ GORE, DB AF HOOVER, RB WALKER, ABC DEFOREST, CE ALLEN, MJ GORE, DB BE Hoover, RB Walker, ABC TI X-RAY/EUV/FUV CALIBRATION OF PHOTOGRAPHIC FILMS FOR SOLAR RESEARCH SO MULTILAYER AND GRAZING INCIDENCE X-RAY/EUV OPTICS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Multilayer and Grazing Incidence X-Ray/EUV Optics II CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB E552,HUNTSVILLE,AL 35812. 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 0-8194-1260-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2011 BP 504 EP 516 DI 10.1117/12.167232 PG 13 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BZ74W UT WOS:A1994BZ74W00047 ER PT B AU BOUCARUT, RA LEVITON, DB MADISON, T AF BOUCARUT, RA LEVITON, DB MADISON, T BE Hoover, RB Walker, ABC TI ADAPTING THE DUOPLASMATRON EUV LIGHT-SOURCE FOR USE ENTIRELY WITHIN VACUUM SO MULTILAYER AND GRAZING INCIDENCE X-RAY/EUV OPTICS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Multilayer and Grazing Incidence X-Ray/EUV Optics II CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GODDARD SPACE FLIGHT CTR,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 0-8194-1260-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2011 BP 549 EP 558 DI 10.1117/12.167222 PG 10 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BZ74W UT WOS:A1994BZ74W00052 ER PT B AU BOUCARUT, RA LEVITON, DB THOMAS, RJ MADISON, T AF BOUCARUT, RA LEVITON, DB THOMAS, RJ MADISON, T BE Hoover, RB Walker, ABC TI EVALUATION OF EUV TOROIDAL DIFFRACTION GRATINGS FOR SOHO/CORONAL DIAGNOSTIC SPECTROMETER SO MULTILAYER AND GRAZING INCIDENCE X-RAY/EUV OPTICS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Multilayer and Grazing Incidence X-Ray/EUV Optics II CY JUL 14-16, 1993 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. 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 0-8194-1260-0 J9 P SOC PHOTO-OPT INS PY 1994 VL 2011 BP 565 EP 576 DI 10.1117/12.167223 PG 12 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BZ74W UT WOS:A1994BZ74W00054 ER PT B AU SCHRAMM, F ROXBY, D AF SCHRAMM, F ROXBY, D BE Minnifield, NK TI BEGINNING THE 21ST-CENTURY WITH ADVANCED AUTOMATIC PART IDENTIFICATION (API) (UPDATED MAY 1994) SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE COMPRESSED SYMBOLOGY; PART IDENTIFICATION; 2-DIMENSIONAL SYMBOL; 2D MATRIX SYMBOL; VERISYSTEM; VERICODE; BAR CODE; PART MARKING; PART TRACKING C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,TECHNOL UTILIZAT OFF,HUNTSVILLE,AL 35812. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 20 EP 25 DI 10.1117/12.188831 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00003 ER PT B AU KIM, HL MADOU, M HINES, J AF KIM, HL MADOU, M HINES, J BE Minnifield, NK TI TELEMETRIC ION-SELECTIVE ELECTRODES SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RI Madou, Marc/E-5869-2013 OI Madou, Marc/0000-0003-4847-3117 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 28 EP 33 DI 10.1117/12.188832 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00004 ER PT B AU SCHWEMMER, GK WILKERSON, T AF SCHWEMMER, GK WILKERSON, T BE Minnifield, NK TI DEVELOPMENT OF A HOLOGRAPHIC TELESCOPE FOR OPTICAL REMOTE-SENSING SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,GREENBELT,MD 20771. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 40 EP 47 DI 10.1117/12.188834 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00006 ER PT B AU OZCAN, M AF OZCAN, M BE Minnifield, NK TI FIBER OPTIC VIBRATION SENSOR AND ITS APPLICATION TO STRUCTURAL CONTROL SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,AMES RES CTR,PHOTON LAB,RECOM TECHNOL INC,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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 48 EP 55 PG 8 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00007 ER PT B AU CHO, YC AF CHO, YC BE Minnifield, NK TI FIBER OPTIC INTERFEROMETRIC SENSORS FOR AEROSPACE APPLICATIONS SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 56 EP 64 DI 10.1117/12.188836 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00008 ER PT B AU MARTIN, LC HOLANDA, R AF MARTIN, LC HOLANDA, R BE Minnifield, NK TI APPLICATIONS OF THIN-FILM THERMOCOUPLES FOR SURFACE-TEMPERATURE MEASUREMENT SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 65 EP 76 DI 10.1117/12.188837 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00009 ER PT B AU HUNTER, GW BICKFORD, RL JANSA, ED MAKEL, DB LIU, CC WU, QH POWERS, WT AF HUNTER, GW BICKFORD, RL JANSA, ED MAKEL, DB LIU, CC WU, QH POWERS, WT BE Minnifield, NK TI MICROFABRICATED HYDROGEN SENSOR TECHNOLOGY FOR AEROSPACE AND COMMERCIAL APPLICATIONS SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 77 EP 88 DI 10.1117/12.188816 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00010 ER PT B AU HINES, JW RICKS, RD AF HINES, JW RICKS, RD BE Minnifield, NK TI SENSORS-2000 - ADVANCED BIOSENSOR SYSTEMS FOR SPACE LIFE SCIENCES SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,AMES RES CTR,SENSORS 2000 PROGRAM,MOFFETT FIELD,CA 94035. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 90 EP 101 DI 10.1117/12.188817 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00011 ER PT B AU LARSON, WE HALLBERG, C MEDELIUS, PJ AF LARSON, WE HALLBERG, C MEDELIUS, PJ BE Minnifield, NK TI UNIVERSAL SIGNAL CONDITIONING AMPLIFIER SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE SIGNAL CONDITIONERS; DATA ACQUISITION; MEASUREMENTS; TRANSDUCERS; SENSORS C1 NASA,KENNEDY SPACE CTR,FL 32899. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 123 EP 132 DI 10.1117/12.188820 PG 10 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00014 ER PT B AU JONES, CS AF JONES, CS BE Minnifield, NK TI AUTOMATED AND ALUMINUM WELDING TECHNOLOGY SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE WELDING; ALUMINUM ALLOYS; AUTOMATION; SEAM TRACKING; SENSORS; PROFILE MEASUREMENT C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,MET PROC BRANCH,HUNTSVILLE,AL 35812. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 133 EP 141 DI 10.1117/12.188821 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00015 ER PT B AU BESHEARS, RD HEDIGER, LH AF BESHEARS, RD HEDIGER, LH BE Minnifield, NK TI ADVANCED COMPUTED-TOMOGRAPHY INSPECTION SYSTEM (ACTIS) - AN OVERVIEW OF THE TECHNOLOGY AND ITS APPLICATIONS SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,NONDESTRUCT EVALUAT BRANCH,HUNTSVILLE,AL 35812. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 142 EP 150 DI 10.1117/12.188822 PG 9 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00016 ER PT B AU ANDERSON, KF AF ANDERSON, KF BE Minnifield, NK TI PRACTICAL APPLICATIONS OF CURRENT LOOP SIGNAL CONDITIONING SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE MEASUREMENTS; RESISTANCE; STRAIN; SIGNAL CONDITIONING C1 NASA,DRYDEN FLIGHT RES CTR,EDWARDS AFB,CA 93523. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 152 EP 170 DI 10.1117/12.188823 PG 19 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00017 ER PT B AU MOGAN, P AF MOGAN, P BE Minnifield, NK TI REAL-TIME MEASUREMENT OF NONVOLATILE RESIDUE CONTAMINATION IN CLEANROOM ENVIRONMENTS SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,KSC,KENNEDY SPACE CTR,FL 32815. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 171 EP 176 DI 10.1117/12.188824 PG 6 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00018 ER PT B AU KUNATH, R AF KUNATH, R BE Minnifield, NK TI AN INTEGRATED GAAS OPTOELECTRONIC RECEIVER SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE PHOTONICS; OPTOELECTRONICS; FIBER OPTICS; MMIC; PHASED ARRAY ANTENNA C1 NASA,LEWIS RES CTR,DIV SPACE ELECTR,CLEVELAND,OH 44135. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 190 EP 194 DI 10.1117/12.188827 PG 5 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00020 ER PT B AU HOOVER, RB SHEALY, DL WALKER, ABC BAKER, PC GRUPIDO, N GUTMAN, G BARBEE, TW AF HOOVER, RB SHEALY, DL WALKER, ABC BAKER, PC GRUPIDO, N GUTMAN, G BARBEE, TW BE Minnifield, NK TI DEVELOPMENT OF THE WATER WINDOW IMAGING X-RAY MICROSCOPE SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 195 EP 208 DI 10.1117/12.188828 PG 14 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00021 ER PT B AU RIDDLEBAUGH, S AF RIDDLEBAUGH, S BE Minnifield, NK TI COMMERCIALIZATION PROCESSES AT NASA-LEWIS-RESEARCH-CENTER SO NASA/SPIE CONFERENCE ON SPIN-OFF TECHNOLOGIES FROM NASA FOR COMMERCIAL SENSORS AND SCIENTIFIC APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT NASA/SPIE Conference on Spin-Off Technologies from NASA for Commercial Sensors and Scientific Applications CY JUL 25-26, 1994 CL SAN DIEGO, CA SP NASA, TECHNOL TRANSFER COMMERCIALIZAT OFF, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LEWIS RES CTR,TECHNOL UTILIZAT OFF,CLEVELAND,OH 44135. 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 0-8194-1594-4 J9 P SOC PHOTO-OPT INS PY 1994 VL 2270 BP 212 EP 223 DI 10.1117/12.188830 PG 12 WC Engineering, Aerospace; Instruments & Instrumentation; Remote Sensing SC Engineering; Instruments & Instrumentation; Remote Sensing GA BB57Q UT WOS:A1994BB57Q00023 ER PT B AU WOODEN, DH AF WOODEN, DH BE The, PS Perez, MR vandenHeuvel, EPJ TI 8 mu m-13 mu m spectrophotometry of Herbig Ae/Be stars SO NATURE AND EVOLUTIONARY STATUS OF HERBIG AE/BE STARS SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 1st International Meeting on the Nature and Evolutionary Status of Herbig Ae/Be Stars CY OCT 26-29, 1993 CL AMSTERDAM, NETHERLANDS SP Koninklijke Nederlandse Acad Wetenschappen, Leids Kerkhoven Bosscha Fonds, Stichting Sterrenkundig Studiefonds J C Kapteyn, Pieter Zeeman Fonds, Stichting Fys, Shell Nederland BV, ACI Offsetdrukkerij, Popular Wetenschappelijk Maandblad KIJK, Univ Amsterdam, Sterrenkundig Inst C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 10 Z9 10 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 BN 0-937707-81-3 J9 ASTR SOC P PY 1994 VL 62 BP 138 EP 139 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BD88C UT WOS:A1994BD88C00033 ER PT B AU BELL, KR AF BELL, KR BE The, PS Perez, MR vandenHeuvel, EPJ TI Reconciling accretion scenarios with inner holes: The thermal instability and the 2 mu m gap SO NATURE AND EVOLUTIONARY STATUS OF HERBIG AE/BE STARS SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 1st International Meeting on the Nature and Evolutionary Status of Herbig Ae/Be Stars CY OCT 26-29, 1993 CL AMSTERDAM, NETHERLANDS SP Koninklijke Nederlandse Acad Wetenschappen, Leids Kerkhoven Bosscha Fonds, Stichting Sterrenkundig Studiefonds J C Kapteyn, Pieter Zeeman Fonds, Stichting Fys, Shell Nederland BV, ACI Offsetdrukkerij, Popular Wetenschappelijk Maandblad KIJK, Univ Amsterdam, Sterrenkundig Inst C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. 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 0-937707-81-3 J9 ASTR SOC P PY 1994 VL 62 BP 215 EP 218 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BD88C UT WOS:A1994BD88C00049 ER PT B AU PEREZ, M AF PEREZ, M BE The, PS Perez, MR vandenHeuvel, EPJ TI Herbig Ae/Be stars in young open clusters SO NATURE AND EVOLUTIONARY STATUS OF HERBIG AE/BE STARS SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 1st International Meeting on the Nature and Evolutionary Status of Herbig Ae/Be Stars CY OCT 26-29, 1993 CL AMSTERDAM, NETHERLANDS SP Koninklijke Nederlandse Acad Wetenschappen, Leids Kerkhoven Bosscha Fonds, Stichting Sterrenkundig Studiefonds J C Kapteyn, Pieter Zeeman Fonds, Stichting Fys, Shell Nederland BV, ACI Offsetdrukkerij, Popular Wetenschappelijk Maandblad KIJK, Univ Amsterdam, Sterrenkundig Inst C1 NASA,GODDARD SPACE FLIGHT CTR,IUE OBSERV,CSC,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 0-937707-81-3 J9 ASTR SOC P PY 1994 VL 62 BP 331 EP 338 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BD88C UT WOS:A1994BD88C00073 ER PT B AU CRENSHAW, DM AF CRENSHAW, DM BE Robinson, A Terlevich, R TI DECONVOLUTION OF VARIABLE SEYFERT-1 PROFILES SO NATURE OF COMPACT OBJECTS IN ACTIVE GALACTIC NUCLEI LA English DT Proceedings Paper CT 33rd Herstmonceux Conference on the Nature of Compact Objects in Active Galactic Nuclei CY JUL 06-22, 1992 CL CAMBRIDGE, ENGLAND SP ROYAL GREENWICH OBSERVATORY, UNIV CAMBRIDGE, INST ASTRON C1 NASA,GODDARD SPACE FLIGHT CTR,COMP SCI CORP,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-46480-3 PY 1994 BP 184 EP 187 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA62X UT WOS:A1994BA62X00041 ER PT B AU TURNER, TJ AF TURNER, TJ BE Robinson, A Terlevich, R TI X-RAY VARIABILITY IN AGN SO NATURE OF COMPACT OBJECTS IN ACTIVE GALACTIC NUCLEI LA English DT Proceedings Paper CT 33rd Herstmonceux Conference on the Nature of Compact Objects in Active Galactic Nuclei CY JUL 06-22, 1992 CL CAMBRIDGE, ENGLAND SP ROYAL GREENWICH OBSERVATORY, UNIV CAMBRIDGE, INST ASTRON C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-46480-3 PY 1994 BP 257 EP 264 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA62X UT WOS:A1994BA62X00059 ER PT B AU GEORGE, IM NANDRA, P FABIAN, AC TURNER, TJ DONE, C DAY, CSR AF GEORGE, IM NANDRA, P FABIAN, AC TURNER, TJ DONE, C DAY, CSR BE Robinson, A Terlevich, R TI THE DRAMATIC X-RAY SPECTRAL VARIABILITY OF MKN-841 SO NATURE OF COMPACT OBJECTS IN ACTIVE GALACTIC NUCLEI LA English DT Proceedings Paper CT 33rd Herstmonceux Conference on the Nature of Compact Objects in Active Galactic Nuclei CY JUL 06-22, 1992 CL CAMBRIDGE, ENGLAND SP ROYAL GREENWICH OBSERVATORY, UNIV CAMBRIDGE, INST ASTRON C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RI done, chris/D-4605-2016 OI done, chris/0000-0002-1065-7239 NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-46480-3 PY 1994 BP 278 EP 279 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA62X UT WOS:A1994BA62X00063 ER PT B AU EDELSON, R PIKE, G SAKEN, J KINNEY, A SHULL, M KROLIK, J AF EDELSON, R PIKE, G SAKEN, J KINNEY, A SHULL, M KROLIK, J BE Robinson, A Terlevich, R TI A COMPARISON OF THE ULTRAVIOLET CONTINUUM VARIABILITY PROPERTIES OF BLAZARS AND SEYFERT-1S SO NATURE OF COMPACT OBJECTS IN ACTIVE GALACTIC NUCLEI LA English DT Proceedings Paper CT 33rd Herstmonceux Conference on the Nature of Compact Objects in Active Galactic Nuclei CY JUL 06-22, 1992 CL CAMBRIDGE, ENGLAND SP ROYAL GREENWICH OBSERVATORY, UNIV CAMBRIDGE, INST ASTRON C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-46480-3 PY 1994 BP 389 EP 392 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA62X UT WOS:A1994BA62X00091 ER PT J AU LEE, S KIL, RM AF LEE, S KIL, RM TI REDUNDANT ARM KINEMATIC CONTROL WITH RECURRENT LOOP SO NEURAL NETWORKS LA English DT Article DE LYAPUNOV FUNCTION; INVERSE KINEMATIC SOLUTIONS; REDUNDANT ARM; RECURRENT LOOP; ITERATIVE INPUT VECTOR UPDATE; CONVERGENCE STABILITY; SINUSOIDAL ACTIVATION FUNCTION; TERMINAL ATTRACTORS ID MANIPULATORS; CONFIGURATION AB A new method for generating redundant arm inverse kinematic solutions based on the iterative update of joint vectors is presented. A novel neural network architecture with a recurrent loop is then formed based on the proposed method. In the proposed method, the pseudoinverse of the gradient of a Lyapunov function is defined in the joint space to update the joint vector toward a solution. This differs from the conventional methods based on the Jacobian pseudoinverse or Jacobian transpose. This paper establishes explicit convergence control schemes to achieve fast and stable convergence: 1) the convergence speed is enhanced by modifying the convergence dynamics based on terminal attractors, and 2) the convergence stability is ensured by the adaptive selection of update intervals based on the stability condition derived in this paper The proposed neural network consists of a feedforward network and a feedback network forming a recurrent loop. The feedforward network is a multilayer network with hidden units having sinusoidal activation functions. As such, it computes accurately the forward kinematic solutions with simple training. The feedback network is derived from the feedforward network and computes joint vector updates. The proposed neural network has definite advantages over conventional neural networks for robot arm kinematic control, because it can not only handle redundant arm kinematic control, but can also provide an accurate computation of forward and inverse kinematic solutions with very simple training. The simulation results demonstrate that the proposed method is effective for the real-time kinematic control of a redundant arm as well as the real-time generation of collision-free joint trajectories. C1 UNIV SO CALIF,LOS ANGELES,CA 90089. RP LEE, S (reprint author), JET PROP LAB,PASADENA,CA 91109, USA. NR 36 TC 15 Z9 16 U1 0 U2 1 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0893-6080 J9 NEURAL NETWORKS JI Neural Netw. PY 1994 VL 7 IS 4 BP 643 EP 659 DI 10.1016/0893-6080(94)90042-6 PG 17 WC Computer Science, Artificial Intelligence SC Computer Science GA NN622 UT WOS:A1994NN62200004 ER PT S AU GROENEWEG, JF AF GROENEWEG, JF BE Cuschieri, JM Glegg, SAL Yeager, DM TI FAN NOISE RESEARCH AT NASA SO NOISE-CON 94, PROCEEDINGS: 1994 NATIONAL CONFERENCE ON NOISE CONTROL ENGINEERING - PROGRESS IN NOISE CONTROL FOR INDUSTRY SE NOISE-CON PROCEEDINGS LA English DT Proceedings Paper CT 1994 National Conference on Noise Control Engineering: Progress in Noise Control for Industry CY MAY 01-04, 1994 CL FT LAUDERDALE, FL SP INST NOISE CONTOL ENGN, IBM CORP, FLORIDA ATLANTIC UNIV C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU NOISE CONTROL FOUNDATION PI POUGHKEEPSIE PA PO BOX 2469, POUGHKEEPSIE, NY 12603 SN 0736-2935 BN 0-931784-27-1 J9 NOISE CON P PY 1994 BP 43 EP 52 PG 10 WC Acoustics; Automation & Control Systems SC Acoustics; Automation & Control Systems GA BB06T UT WOS:A1994BB06T00005 ER PT J AU COOPER, BA AF COOPER, BA TI A LARGE HEMIANECHOIC ENCLOSURE FOR COMMUNITY-COMPATIBLE AEROACOUSTIC TESTING OF AIRCRAFT PROPULSION SYSTEMS SO NOISE CONTROL ENGINEERING JOURNAL LA English DT Article AB A large hemi-anechoic (sound-absorbing walls and acoustically hard floor) noise control enclosure was erected around a complex of test stands at the NASA Lewis Research Center in Cleveland, Ohio. This new state-of-the-art Aeroacoustic Propulsion Laboratory provides an all-weather, semisecure test environment while minimizing noise levels in surrounding residential neighborhoods. The 39.6-m-diam (130-ft-diam) geodesic dome houses the new nozzle aeroacoustic test rig, an ejector-powered Mach 0.3 free-jet facility for acoustical testing of supersonic aircraft exhaust nozzles and turbomachinery. A multiaxis, force-measuring powered lift facility stand for testing short-takeoff vertical-landing vehicles is also located in the dome. The design of the Aeroacoustic Propulsion Laboratory efficiently accommodates the research functions of the two separate rigs, while providing a specialized environment for measuring far-field sound-pressure levels from the nozzle aeroacoustic test rig. Sound-absorbing fiberglass wedges on the interior surface of the dome provide a hemi-anechoic environment. The Aeroacoustic Propulsion Laboratory is the first known geodesic dome structure to incorporate transmission-loss properties as well as interior absorption in a free-standing community-compatible, hemi-anechoic test facility. RP COOPER, BA (reprint author), NASA,LEWIS RES CTR,AERONAUT DIRECTORATE,PROPELLER & ACOUST TECHNOL BRANCH,CLEVELAND,OH 44135, USA. NR 0 TC 1 Z9 1 U1 0 U2 2 PU INST NOISE CONTROL ENG PI POUGHKEEPSIE PA PO BOX 3206 ARLINGTON BRANCH, POUGHKEEPSIE, NY 12603 SN 0736-2501 J9 NOISE CONTROL ENG JI Noise Control Eng. J. PD JAN-FEB PY 1994 VL 42 IS 1 BP 1 EP 7 DI 10.3397/1.2827854 PG 7 WC Acoustics; Engineering, Multidisciplinary SC Acoustics; Engineering GA MY675 UT WOS:A1994MY67500004 ER PT B AU SIMCHICK, RT SOROKACH, S FRIPP, AL DEBNAM, WJ BERRY, RF JOBSON, DJ BARBER, PG AF SIMCHICK, RT SOROKACH, S FRIPP, AL DEBNAM, WJ BERRY, RF JOBSON, DJ BARBER, PG BE Green, RE Kozaczek, KJ Ruud, CO TI GROWTH RATES AND INTERFACE SHAPES IN SEMICONDUCTOR MATERIALS USING REAL TIME RADIOGRAPHIC IMAGING SO NONDESTRUCTIVE CHARACTERIZATION OF MATERIALS VI LA English DT Proceedings Paper CT 6th International Symposium on Nondestructive Characterization of Materials CY JUN 07-11, 1993 CL OAHU, HI C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44816-5 PY 1994 BP 453 EP 460 PG 8 WC Materials Science, Characterization & Testing SC Materials Science GA BC23T UT WOS:A1994BC23T00057 ER PT B AU HULL, S AF HULL, S BE Green, RE Kozaczek, KJ Ruud, CO TI DETECTION OF CRACKS IN CERAMICS USED IN ELECTRONIC DEVICES USING LIGHT SCATTERING SO NONDESTRUCTIVE CHARACTERIZATION OF MATERIALS VI LA English DT Proceedings Paper CT 6th International Symposium on Nondestructive Characterization of Materials CY JUN 07-11, 1993 CL OAHU, HI C1 NASA,GODDARD SPACE FLIGHT CTR,PARAMAX SYST CORP,ELECTR PACKAGING PROGRAM,LANHAM,MD 20706. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44816-5 PY 1994 BP 469 EP 477 PG 9 WC Materials Science, Characterization & Testing SC Materials Science GA BC23T UT WOS:A1994BC23T00059 ER PT B AU CHERN, EJ AF CHERN, EJ BE Green, RE Kozaczek, KJ Ruud, CO TI AN INTEGRATED ULTRASONIC AND EDDY CURRENT IMAGING SYSTEM SO NONDESTRUCTIVE CHARACTERIZATION OF MATERIALS VI LA English DT Proceedings Paper CT 6th International Symposium on Nondestructive Characterization of Materials CY JUN 07-11, 1993 CL OAHU, HI C1 NASA,GODDARD SPACE FLIGHT CTR,MAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44816-5 PY 1994 BP 593 EP 598 PG 6 WC Materials Science, Characterization & Testing SC Materials Science GA BC23T UT WOS:A1994BC23T00075 ER PT B AU ZALAMEDA, JN SMITH, BT AF ZALAMEDA, JN SMITH, BT BE Green, RE Kozaczek, KJ Ruud, CO TI MEASUREMENT OF COMPOSITE FIBER VOLUME FRACTION USING THERMAL AND ULTRASONIC INSPECTION TECHNIQUES SO NONDESTRUCTIVE CHARACTERIZATION OF MATERIALS VI LA English DT Proceedings Paper CT 6th International Symposium on Nondestructive Characterization of Materials CY JUN 07-11, 1993 CL OAHU, HI C1 USA,NASA,VEHICLE STRUCT DIRECTORATE,RES LAB,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 1 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44816-5 PY 1994 BP 741 EP 748 PG 8 WC Materials Science, Characterization & Testing SC Materials Science GA BC23T UT WOS:A1994BC23T00094 ER PT B AU FRERKING, MA AF FRERKING, MA BE Peygambarian, N Everitt, H Eckardt, RC Lowenthal, DD TI SUBMILLIMETER SOURCE NEEDS FOR NASA MISSIONS SO NONLINEAR OPTICS FOR HIGH-SPEED ELECTRONICS AND OPTICAL FREQUENCY CONVERSION SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion CY JAN 24-26, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. 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 0-8194-1440-9 J9 P SOC PHOTO-OPT INS PY 1994 VL 2145 BP 222 EP 229 DI 10.1117/12.177146 PG 8 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BA89H UT WOS:A1994BA89H00023 ER PT J AU Vassiliadis, D Daglis, IA AF Vassiliadis, D. Daglis, I. A. TI Developing diagnostics for input-output systems: the effects of certain linear and nonlinear filters on the correlation integral SO NONLINEAR PROCESSES IN GEOPHYSICS LA English DT Article AB Input-output systems are characterized by applying time series analysis techniques developed for autonomous systems to the input and the output time series separately and using the results as nonlinear statistics of the time series distributions. Two examples are presented using the correlation integral as a nonlinear statistic: the first one examines the change in the statistic when several sample input time series are passed through a nonlinear filter. The rectifier is chosen as the filter because it models, at first approximation, the effect of dayside magnetospheric reconnection to the interplanetary magnetic field and solar wind input. The changes in the correlation integral are used to characterize the filter response. A second example compares a linear filter of the rectified solar wind input to the observed auroral geomagnetic activity in terms of their correlation integrals. Implications for models of the solar wind-magneto- sphere coupling are discussed. C1 [Vassiliadis, D.] NASA, Extraterr Phys Lab, GSFC, Greenbelt, MD 20771 USA. [Daglis, I. A.] Max Planck Inst Aeron, D-37189 Katlenburg Lindau, Germany. RP Vassiliadis, D (reprint author), NASA, Extraterr Phys Lab, GSFC, Code 692, Greenbelt, MD 20771 USA. RI Daglis, Ioannis/L-6100-2013 OI Daglis, Ioannis/0000-0002-0764-3442 NR 41 TC 4 Z9 4 U1 0 U2 1 PU COPERNICUS GESELLSCHAFT MBH PI GOTTINGEN PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY SN 1023-5809 J9 NONLINEAR PROC GEOPH JI Nonlinear Process Geophys. PY 1994 VL 1 IS 2-3 SI SI BP 136 EP 144 PG 9 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA V28AT UT WOS:000208654400007 ER PT J AU Cahalan, RF AF Cahalan, R. F. TI Bounded cascade clouds: albedo and effective thickness SO NONLINEAR PROCESSES IN GEOPHYSICS LA English DT Article AB If climate models produced clouds having liquid water amounts close to those observed, they would compute a mean albedo that is often much too large, due to the treatment of clouds as plane-parallel. An approximate lower-bound for this "plane-parallel albedo bias" may be obtained from a fractal model having a range of optical thicknesses similar to those observed in marine stratocumulus, since they are more nearly plane-parallel than most other cloud types. We review and extend results from a model which produces a distribution of liquid water path having a lognormal-like probability density and a power-law wavenumber spectrum, with parameters determined by stratocumulus observations. As the spectral exponent approaches -1, the simulated cloud approaches a well-known multifractal, referred to as the "singular model", but when the exponent is -5/3, similar to what is observed, the cloud exhibits qualitatively different scaling properties, the socalled "bounded model". The mean albedo for bounded cascade clouds is a function of a fractal parameter, 0 << 1, as well as the usual plane-parallel parameters such as single scattering albedo, asymmetry, solar zenith angle, and mean vertical optical thickness. A simple expression is derived to determine from the variance of the logarithm of the vertically-integrated liquid water. The albedo is shown to be approximated well by the plane-parallel albedo of a cloud having an "effective" vertical optical thickness, smaller than the mean thickness by a factor ?(f), which is given as an analytic function of f. California stratocumulus have a mean fractal parameter (f) similar to 0.5, relative albedo bias of 15%, and an effective thickness 30% smaller than the mean thickness (similar to 0.7). For typical observed values of mean liquid water and (f), the effective thickness approximation gives a plane-parallel albedo within 3% of the mean albedo. C1 NASA, Goddard Lab Atmospheres, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RP Cahalan, RF (reprint author), NASA, Goddard Lab Atmospheres, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RI Cahalan, Robert/E-3462-2012 OI Cahalan, Robert/0000-0001-9724-1270 NR 16 TC 68 Z9 71 U1 1 U2 1 PU COPERNICUS GESELLSCHAFT MBH PI GOTTINGEN PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY SN 1023-5809 J9 NONLINEAR PROC GEOPH JI Nonlinear Process Geophys. PY 1994 VL 1 IS 2-3 SI SI BP 156 EP 167 PG 12 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA V28AT UT WOS:000208654400009 ER PT S AU HUNG, CC AF HUNG, CC BE Renschler, CL Cox, DM Pouch, JJ Achiba, Y TI CARBON FIBERS PRODUCED FROM GRAPHITE FLUORIDE BY THERMAL DECOMPOSITION IN AN INERT ENVIRONMENT SO NOVEL FORMS OF CARBON II SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Novel Forms of Carbon II, at the 1994 MRS Spring Meeting CY APR 04-08, 1994 CL SAN FRANCISCO, CA SP MAT RES SOC C1 NASA,LEWIS RES CTR,ELECTROPHYS BRANCH,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-249-9 J9 MATER RES SOC SYMP P PY 1994 VL 349 BP 19 EP 24 PG 6 WC Materials Science, Multidisciplinary; Materials Science, Coatings & Films; Physics, Condensed Matter SC Materials Science; Physics GA BC30W UT WOS:A1994BC30W00003 ER PT B AU PARSONS, A LISSE, CM STAHLE, CM GEHRELS, N TEEGARDEN, BJ BABU, S CAO, N SHU, P AF PARSONS, A LISSE, CM STAHLE, CM GEHRELS, N TEEGARDEN, BJ BABU, S CAO, N SHU, P BE Trendler, RC TI Room temperature CdZnTe and HgI2 detectors for hard X-ray astrophysics SO NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4 LA English DT Proceedings Paper CT 1994 Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) CY OCT 30-NOV 05, 1994 CL NORFOLK, VA SP IEEE C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Gehrels, Neil/D-2971-2012; Parsons, Ann/I-6604-2012; Lisse, Carey/B-7772-2016 OI Lisse, Carey/0000-0002-9548-1526 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 0-7803-2544-3 PY 1994 BP 781 EP 785 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA BD85P UT WOS:A1994BD85P00165 ER PT B AU HUBBARD, GS MCMURRAY, RE KELLER, RG WERCINSKI, PF WALTON, JT AF HUBBARD, GS MCMURRAY, RE KELLER, RG WERCINSKI, PF WALTON, JT BE Trendler, RC TI Multi-line gamma-ray spectrometer performance of a Si(Li) detector stack SO NUCLEAR SCIENCE SYMPOSIUM & MEDICAL IMAGING CONFERENCE - 1994 IEEE CONFERENCE RECORD, VOLS 1-4 LA English DT Proceedings Paper CT 1994 Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC) CY OCT 30-NOV 05, 1994 CL NORFOLK, VA SP IEEE C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. 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 0-7803-2544-3 PY 1994 BP 892 EP 896 PG 5 WC Engineering, Electrical & Electronic; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Engineering; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA BD85P UT WOS:A1994BD85P00185 ER PT S AU DAVIDSON, JA MORRIS, M HARVEY, PM LESTER, DF SMITH, B WERNER, MW AF DAVIDSON, JA MORRIS, M HARVEY, PM LESTER, DF SMITH, B WERNER, MW BE Genzel, R Harris, AI TI FAR-INFRARED EMISSION FROM THE THERMAL ARCHED FILAMENTS SO NUCLEI OF NORMAL GALAXIES: LESSONS FROM THE GALACTIC CENTER SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on the Nuclei of Normal Galaxies - Lessons from the Galactic Center, in Honor of Professor Peter G Mezger on his 65th Birthday CY JUL 25-30, 1993 CL SCHLOSS RINGBERG, KREUTH, GERMANY SP NATO HO SCHLOSS RINGBERG DE GALACTIC CENTER; ARCHED FILAMENTS; FAR-INFRARED CONTINUUM C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 3 Z9 3 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-3158-3 J9 NATO ADV SCI INST SE PY 1994 VL 445 BP 231 EP 238 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BC67X UT WOS:A1994BC67X00031 ER PT S AU ERICKSON, EF COLGAN, SWJ SIMPSON, JP RUBIN, RH HAAS, MR AF ERICKSON, EF COLGAN, SWJ SIMPSON, JP RUBIN, RH HAAS, MR BE Genzel, R Harris, AI TI FAR-INFRARED LINE OBSERVATIONS OF SGR A WEST SO NUCLEI OF NORMAL GALAXIES: LESSONS FROM THE GALACTIC CENTER SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on the Nuclei of Normal Galaxies - Lessons from the Galactic Center, in Honor of Professor Peter G Mezger on his 65th Birthday CY JUL 25-30, 1993 CL SCHLOSS RINGBERG, KREUTH, GERMANY SP NATO HO SCHLOSS RINGBERG DE SGR A WEST; FAR-INFRARED SPECTROSCOPY C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RI Colgan, Sean/M-4742-2014 NR 0 TC 4 Z9 4 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-3158-3 J9 NATO ADV SCI INST SE PY 1994 VL 445 BP 249 EP 252 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BC67X UT WOS:A1994BC67X00033 ER PT S AU GEZARI, D DWEK, E VAROSI, F AF GEZARI, D DWEK, E VAROSI, F BE Genzel, R Harris, AI TI MID-INFRARED (4.8-12.4 AND 20.0 mu M) IMAGES OF THE GALACTIC CENTER - MODELING THE ENERGETICS AND MORPHOLOGY OF THE CENTRAL PARSEC SO NUCLEI OF NORMAL GALAXIES: LESSONS FROM THE GALACTIC CENTER SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on the Nuclei of Normal Galaxies - Lessons from the Galactic Center, in Honor of Professor Peter G Mezger on his 65th Birthday CY JUL 25-30, 1993 CL SCHLOSS RINGBERG, KREUTH, GERMANY SP NATO HO SCHLOSS RINGBERG C1 NASA,GODDARD SPACE FLIGHT CTR,INFRARED ASTROPHYS BRANCH,GREENBELT,MD 20771. NR 0 TC 9 Z9 9 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-3158-3 J9 NATO ADV SCI INST SE PY 1994 VL 445 BP 343 EP 350 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BC67X UT WOS:A1994BC67X00042 ER PT S AU GEZARI, D OZERNOY, L VAROSI, F MCCREIGHT, C JOYCE, R AF GEZARI, D OZERNOY, L VAROSI, F MCCREIGHT, C JOYCE, R BE Genzel, R Harris, AI TI A NEW 20 mu M UPPER LIMIT FOR SGR-A* SO NUCLEI OF NORMAL GALAXIES: LESSONS FROM THE GALACTIC CENTER SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on the Nuclei of Normal Galaxies - Lessons from the Galactic Center, in Honor of Professor Peter G Mezger on his 65th Birthday CY JUL 25-30, 1993 CL SCHLOSS RINGBERG, KREUTH, GERMANY SP NATO HO SCHLOSS RINGBERG C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 7 Z9 7 U1 0 U2 0 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-3158-3 J9 NATO ADV SCI INST SE PY 1994 VL 445 BP 427 EP 430 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BC67X UT WOS:A1994BC67X00051 ER PT J AU KIM, YM SHANG, HM CHEN, CP WANG, TS AF KIM, YM SHANG, HM CHEN, CP WANG, TS TI PREDICTION OF CONFINED SWIRLING SPRAY-COMBUSTING FLOWS SO NUMERICAL HEAT TRANSFER PART A-APPLICATIONS LA English DT Article ID MODEL; GAS; JETS AB A numerical model has been developed to predict the confined swirling spray-combusting flows. The governing gas phase equations in Eulerian coordinates are solved by a time-marching multiple pressure-correction procedure based on the operator-splitting technique. The droplet dispersion by turbulence is handled by a stochastic discrete particle-tracking technique. The droplet / wall impingement process is modeled by adopting the jet treatment method and the empirical correlation approach. To appraise the relative performance of turbulence models, computations are carried out by the k-epsilon model and the algebraic stress model. The present numerical results for the swirling spray-combusting flows show qualitative agreement with experimental data. In terms of overall local flow properties, the algebraic stress model improves conformity to the experimental data due to its ability to introduce nonisotropic turbulence effects. C1 UNIV ALABAMA,HUNTSVILLE,AL 35899. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 37 TC 15 Z9 15 U1 0 U2 1 PU HEMISPHERE PUBL CORP PI BRISTOL PA 1900 FROST ROAD, SUITE 101, BRISTOL, PA 19007-1598 SN 1040-7782 J9 NUMER HEAT TR A-APPL JI Numer. Heat Tranf. A-Appl. PD JAN PY 1994 VL 25 IS 1 BP 1 EP 19 DI 10.1080/10407789408955933 PG 19 WC Thermodynamics; Mechanics SC Thermodynamics; Mechanics GA MR368 UT WOS:A1994MR36800002 ER PT B AU FRYXELL, B AF FRYXELL, B BE Franco, J Lizano, S Aguilar, L Daltabuit, E TI INSTABILITIES IN SUPERNOVA EXPLOSIONS SO NUMERICAL SIMULATIONS IN ASTROPHYSICS LA English DT Proceedings Paper CT 1st UNAM-CRAY Supercomputing Workshop, Numerical Simulations in Astrophysics - Modelling the Dynamics of the Universe CY JUL 26-30, 1993 CL MEXICO CITY, MEXICO SP UNAM CRAY C1 NASA,GODDARD SPACE FLIGHT CTR,UNIV SPACE RES ASSOC,GREENBELT,MD 20720. NR 0 TC 4 Z9 4 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-46238-X PY 1994 BP 175 EP 183 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BC10F UT WOS:A1994BC10F00030 ER PT J AU STOBIE, JG AF STOBIE, JG GP AMER METEOROL SOC TI Treatment of correlated instrument errors in optimal interpolation (OI) data assimilation SO NUMERICAL WEATHER PREDICTION 10TH CONFERENCE (NWP) LA English DT Proceedings Paper CT 10th Conference on Numerical Weather Prediction CY JUL 18-22, 1994 CL PORTLAND, OR SP Amer Meteorol Soc, Comm Weather Analy & Forecasting C1 NASA,GODDARD SPACE FLIGHT CTR,DATA ASSIMILAT OFF,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 1994 BP 154 EP 157 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BE07C UT WOS:A1994BE07C00059 ER PT J AU KARYAMPUDI, VM LAI, G MANOBIANCO, J KOCH, S AF KARYAMPUDI, VM LAI, G MANOBIANCO, J KOCH, S GP AMER METEOROL SOC TI Impact of assimilating SSM/I and GOES/IR-derived rainfall rates on Hurricane Florence SO NUMERICAL WEATHER PREDICTION 10TH CONFERENCE (NWP) LA English DT Proceedings Paper CT 10th Conference on Numerical Weather Prediction CY JUL 18-22, 1994 CL PORTLAND, OR SP Amer Meteorol Soc, Comm Weather Analy & Forecasting C1 NASA,GODDARD SPACE FLIGHT CTR,SCI SYST & APPLICAT INC,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 1994 BP 187 EP 189 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BE07C UT WOS:A1994BE07C00071 ER PT J AU TAKACS, LL SUAREZ, MJ AF TAKACS, LL SUAREZ, MJ GP AMER METEOROL SOC TI On the impact of horizontal resolution and order of accuracy on the climate statistics of the GEOS GCM SO NUMERICAL WEATHER PREDICTION 10TH CONFERENCE (NWP) LA English DT Proceedings Paper CT 10th Conference on Numerical Weather Prediction CY JUL 18-22, 1994 CL PORTLAND, OR SP Amer Meteorol Soc, Comm Weather Analy & Forecasting C1 NASA,GODDARD SPACE FLIGHT CTR,ATMOSPHERES LAB,DATA ASSIMILAT OFF,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 1994 BP 353 EP 356 PG 4 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BE07C UT WOS:A1994BE07C00130 ER PT J AU MANOBIANCO, J TAYLOR, GE AF MANOBIANCO, J TAYLOR, GE GP AMER METEOROL SOC TI Operational real-time mesoscale numerical weather prediction at the Kennedy Space Center SO NUMERICAL WEATHER PREDICTION 10TH CONFERENCE (NWP) LA English DT Proceedings Paper CT 10th Conference on Numerical Weather Prediction CY JUL 18-22, 1994 CL PORTLAND, OR SP Amer Meteorol Soc, Comm Weather Analy & Forecasting C1 ENSCO INC,APPL METEOROL UNIT,NASA,KENNEDY SPACE CTR,FL. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1994 BP 448 EP 450 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BE07C UT WOS:A1994BE07C00164 ER PT B AU SIENKIEWICZ, ME PFAENDTNER, JW AF SIENKIEWICZ, ME PFAENDTNER, JW GP AMER METEOROL SOC TI Assimilation variability in the GEOS-1 DAS SO NUMERICAL WEATHER PREDICTION 10TH CONFERENCE (NWP) LA English DT Proceedings Paper CT 10th Conference on Numerical Weather Prediction CY JUL 18-22, 1994 CL PORTLAND, OR SP Amer Meteorol Soc, Comm Weather Analy & Forecasting C1 NASA,GODDARD SPACE FLIGHT CTR,DATA ASSIMILAT OFF,GREENBELT,MD 20771. RI Sienkiewicz, Meta/P-8168-2016 OI Sienkiewicz, Meta/0000-0002-9267-4568 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER METEOROLOGICAL SOC PI BOSTON PA 45 BEACON ST, BOSTON, MA 02108 PY 1994 BP 488 EP 490 PG 3 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA BE07C UT WOS:A1994BE07C00178 ER PT J AU STONE, NH WRIGHT, KH WINNINGHAM, JD BIARD, J GURGIOLO, C AF STONE, NH WRIGHT, KH WINNINGHAM, JD BIARD, J GURGIOLO, C TI A TECHNICAL DESCRIPTION OF THE TSS-1 ROPE INVESTIGATION SO NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS LA English DT Article AB The Research on Orbital Plasma Electrodynamics (ROPE) investigation was designed to study the complex of phenomena and processes expected to exist around the highly biased satellite of the TSS-1 system. Specifically, ROPE was to study the characteristics of the high-voltage sheath and study ionization processes in the vicinty of the satellite. To accomplish this, two banks of sensors were mounted on the satellite. One was flush-mounted on the satellite's surface and the other was located at the end of the satellite's fixed boom. Of particular note is the ability to drive the boom probes' surface potential to the local floating potential. In conjunction with satellite spin, the surface-mounted sensors could map the distribution of electron flux to the satellite's surface while the boom-mounted sensors could measure the ion and electron fluxes in and out of the satellite's plasma sheath. RP STONE, NH (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,ES53,HUNTSVILLE,AL 35812, USA. RI Biard, James/E-5593-2014 OI Biard, James/0000-0002-2952-2828 NR 0 TC 10 Z9 10 U1 0 U2 0 PU EDITRICE COMPOSITORI BOLOGNA PI BOLOGNA PA VIA STALINGRADO 97/2, I-40128 BOLOGNA, ITALY SN 0390-5551 J9 NUOVO CIMENTO C JI Nuovo Cimento Soc. Ital. Fis. C-Geophys. Space Phys. PD JAN-FEB PY 1994 VL 17 IS 1 BP 85 EP 99 DI 10.1007/BF02506682 PG 15 GA NG795 UT WOS:A1994NG79500005 ER PT S AU HENRY, H LI, TT LI, PP YEUNG, R TYRRELL, D ADHAMI, N AF HENRY, H LI, TT LI, PP YEUNG, R TYRRELL, D ADHAMI, N BE Herring, C Wallace, J Beaumariage, T Roberts, C TI AN ADVANCED SIMULATION FRAMEWORK FOR PARALLEL DISCRETE-EVENT SIMULATION SO OBJECT-ORIENTED SIMULATION CONFERENCE (OOS'94) SE SIMULATION SERIES LA English DT Proceedings Paper CT Object-Oriented Simulation Conference/1994 Western Multiconference CY JAN 24-26, 1994 CL TEMPE, AZ SP SOC COMP SIMULAT C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0735-9276 BN 1-56555-067-6 J9 SIMUL SERIES PY 1994 VL 26 IS 2 BP 155 EP 160 PG 6 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BA76W UT WOS:A1994BA76W00023 ER PT J AU CARTWRIGHT, DE RAY, RD AF CARTWRIGHT, DE RAY, RD TI ON THE RADIATIONAL ANOMALY IN THE GLOBAL OCEAN TIDE WITH REFERENCE TO SATELLITE ALTIMETRY SO OCEANOLOGICA ACTA LA English DT Article ID GEOSAT ALTIMETRY AB The increasing precision of satellite altimetry in relation to tides justifies making a distinction between the gravitationally generated S-2 tide and its observed values in the ocean, which are affected indirectly by solar radiation. In view of the relatively high noise background, we propose a simplified form of response analysis in which the purely solar semidiurnal harmonics of the gravitational potential are modified by an arbitrary amplitude-factor R* and a phase lag r*. Analysis of a globally representative set of 80 tide-recording stations shows that the observed S-2 constituent is strongly coherent with its gravitational part deduced from lunar tides, with regression constants R* = 0.97, r* = 5.9 degrees. The corresponding 'radiational anomaly has a phase lag of 108 degrees on the gravitational part, with amplitude ratio 0.105, very close to the values associated with the inverse barometric tide. The proposed analytical procedure should yield improved definition of S-2 and K-2 when applied to altimetry from either sun-synchronous or non-sun-synchronous satellites. This result is confirmed by comparing an analysis of 40 cycles of Topex/Poseidon altimetry with 'sea truth' from 30 open-sea tide-gage stations. C1 NASA, GODDARD SPACE FLIGHT CTR, HUGHES STX, GREENBELT, MD 20771 USA. RI Ray, Richard/D-1034-2012 NR 15 TC 18 Z9 18 U1 0 U2 2 PU GAUTHIER-VILLARS/EDITIONS ELSEVIER PI PARIS PA 23 RUE LINOIS, 75015 PARIS, FRANCE SN 0399-1784 J9 OCEANOL ACTA JI Oceanol. Acta PY 1994 VL 17 IS 5 BP 453 EP 459 PG 7 WC Oceanography SC Oceanography GA RN266 UT WOS:A1994RN26600001 ER PT S AU BILITZA, D AF BILITZA, D BE Rawer, K Piggott, WR Paul, AK TI IRI - AN INTERNATIONAL RAWER INITIATIVE SO OFF MEDIAN PHENOMENA AND INTERNATIONAL REFERENCE IONOSPHERE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT COSPAR International Scientific Symposium on Off Median Phenomena and International Reference Ionosphere CY OCT 19-22, 1993 CL TRIESTE, ITALY SP OMM SPACE RES, INT UNION RADIO SCI, INT UNION GEODESY & GEOPHYS, ASSOC GEOPMAGNETISM & AERON AB This paper was presented during the special session that was held at the 1993 IRI Workshop in honor of Karl Rawer's 80th birthday. It retraces the steps that led from the start of the International Reference ionosphere (IRI) project to the present edition of the model highlighting the important role that the honoree played in guiding IRI from infancy to maturity. All summary view graphs are reproduced at the end of the article. RP BILITZA, D (reprint author), NASA,GODDARD SPACE FLIGHT CTR,NATL SPACE SCI DATA CTR,HSTX,CODE 633,GREENBELT,MD 20771, USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042537-2 J9 ADV SPACE RES PY 1994 VL 15 IS 2 BP 7 EP 10 PG 4 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BB58M UT WOS:A1994BB58M00001 ER PT S AU BILITZA, D KOBLINSKY, C BECKLEY, B ZIA, S WILLIAMSON, R AF BILITZA, D KOBLINSKY, C BECKLEY, B ZIA, S WILLIAMSON, R BE Rawer, K Piggott, WR Paul, AK TI USING IRI FOR THE COMPUTATION OF IONOSPHERIC CORRECTIONS FOR ALTIMETER DATA-ANALYSIS SO OFF MEDIAN PHENOMENA AND INTERNATIONAL REFERENCE IONOSPHERE SE ADVANCES IN SPACE RESEARCH LA English DT Article; Proceedings Paper CT COSPAR International Scientific Symposium on Off Median Phenomena and International Reference Ionosphere CY OCT 19-22, 1993 CL TRIESTE, ITALY SP OMM SPACE RES, INT UNION RADIO SCI, INT UNION GEODESY & GEOPHYS, ASSOC GEOPMAGNETISM & AERON AB Measurements by single-frequency satellite altimeter (Geosat, ERS-1) require a ionospheric correction to account for the signal time delay in the ionosphere. We propose using the International Reference Ionosphere (IRI) for the determina-tion of this time delay. To investigate the effectiveness of an IRI correction, we have compared the IRI values with ionospheric corrections deduced from measurements by the dual-frequency Topex altimeter. By measuring at two frequencies, the Topex instrument can record (and thus eliminate) the ionospheric influence. We find that IRI agrees with the Topex data much better than the model that is currently used in Geosat data analysis. In particular the earlier model does not represent the equatorial double-peak (equator anomaly) clearly seen in the Topex data. Overall, the use of IRI results in a 30% improvement (over the older model) in the accuracy of ionospheric corrections computed for the first year of the Topex mission. C1 NASA,GODDARD SPACE FLIGHT CTR,HYDROSPHER PROC LAB,OCEANS & ICE BRANCH,GREENBELT,MD 20771. RP BILITZA, D (reprint author), HUGHES STX CORP,7701 GREENBELT RD,GREENBELT,MD 20770, USA. NR 7 TC 1 Z9 1 U1 1 U2 1 PU PERGAMON PRESS LTD PI OXFORD PA THE BOULEVARD LANGFORD LANE KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0273-1177 BN 0-08-042537-2 J9 ADV SPACE RES PY 1994 VL 15 IS 2 BP 113 EP 119 PG 7 WC Engineering, Aerospace; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA BB58M UT WOS:A1994BB58M00016 ER PT B AU Bresina, J Swanson, K Drummond, M Edgington, W AF Bresina, J Swanson, K Drummond, M Edgington, W BE Pyper, DM Angione, RJ TI Automated management and scheduling of remote automatic telescopes SO OPTICAL ASTRONOMY FROM THE EARTH AND MOON SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Astronomical-Society-of-the-Pacific Summer Scientific Meeting on Optical Astronomy From the Earth and Moon CY JUL 13-15, 1993 CL SAN DIEGO, CA SP Astron Soc Pacific C1 NASA,AMES RES CTR,AI RES BRANCH,MOFFETT FIELD,CA 94035. 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 0-937707-74-0 J9 ASTR SOC P PY 1994 VL 55 BP 216 EP 233 PG 18 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE33U UT WOS:A1994BE33U00026 ER PT B AU Mason, C AF Mason, C BE Pyper, DM Angione, RJ TI Collaborative networks of independent automatic telescopes SO OPTICAL ASTRONOMY FROM THE EARTH AND MOON SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT Astronomical-Society-of-the-Pacific Summer Scientific Meeting on Optical Astronomy From the Earth and Moon CY JUL 13-15, 1993 CL SAN DIEGO, CA SP Astron Soc Pacific C1 NASA,AMES RES CTR,AI RES BRANCH,MOFFETT FIELD,CA 94035. 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 0-937707-74-0 J9 ASTR SOC P PY 1994 VL 55 BP 234 EP 245 PG 12 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE33U UT WOS:A1994BE33U00027 ER PT B AU DECKER, AJ AF DECKER, AJ BE Lading, L Wigley, G Buchhave, P TI TOMOGRAPHIC METHODS IN FLOW DIAGNOSTICS SO OPTICAL DIAGNOSTICS FOR FLOW PROCESSES LA English DT Proceedings Paper CT Summer School on Optical Diagnostics for Flow Processes CY SEP 26-OCT 02, 1993 CL ROSKILDE, DENMARK SP EUROPEAN ASSOC LASER ANEMOMETRY, EUROPEAN COMMISS HUMAN CAPITAL & MOBIL PROGRAMME, DANISH RES ACAD, RISO NATL LAB, TECH UNIV DENMARK, DANTEC MEASUREMENT TECHNOL, AVL LIST GMBH C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 2 Z9 2 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44817-3 PY 1994 BP 337 EP 353 PG 17 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Optics; Physics, Fluids & Plasmas SC Computer Science; Engineering; Optics; Physics GA BC43C UT WOS:A1994BC43C00016 ER PT J AU SPAGNUOLO, J LATHROP, JB AF SPAGNUOLO, J LATHROP, JB TI CLUSTERING BY MEANS OF A BOLTZMANN MACHINE WITH PARTIAL CONSTRAINT SATISFACTION SO OPTICAL ENGINEERING LA English DT Article DE BOLTZMANN MACHINE; CLUSTERING; TRACKER; PARALLEL ANNEALING SCHEDULE ID MULTITARGET TRACKING; NEURAL NETWORK; NETS AB The clustering problem refers to the partitioning of target sightings into sets. Two sightings are in the same set if and only if they are generated by sensor detections of the same target and are in the same great circle arc (GARC) trajectory of that target. A Boltzmann machine is developed whose sparse architecture provides tor only partial constraint satisfaction of the associated cost function. This together with a special graphics interface serve as an aid in determining GARCs. Our approach differs from others in that the neural net is built to operate in conjunction with a non-neural tracker. This further restricts the architectural complexity of the network and facilitates future experimentation regarding decomposition of the neural net across several Von Neumann processors. Also, the Boltzmann machine architecture eases the effort of finding optimal or near optimal solutions. Results are presented. The demonstrated feasibility of neural GARC determination encourages investigation into the extension of its role in the track formation process utilizing an environment that includes supercomputers, neurocomputers, or optical hardware. The network architecture is capable of identifying a host of geometric forms other than GARCs and can thus be used in several domains including space, land, and ocean. RP SPAGNUOLO, J (reprint author), JET PROP LAB,4800 OAK GROVE DR 301-270,PASADENA,CA 91109, USA. NR 17 TC 0 Z9 0 U1 0 U2 1 PU SOC PHOTO-OPT INSTRUM ENG PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 SN 0091-3286 J9 OPT ENG JI Opt. Eng. PD JAN PY 1994 VL 33 IS 1 BP 251 EP 266 PG 16 WC Optics SC Optics GA MR614 UT WOS:A1994MR61400037 ER PT B AU JUDAY, RD MONROE, SE KUMAR, BVKV AF JUDAY, RD MONROE, SE KUMAR, BVKV BE Casasent, DP Chao, TH TI CORRELATION PEAK SHIFT BETWEEN MATCHED-PHASE AND MAXIMUM-INTENSITY COUPLED FILTERS SO OPTICAL PATTERN RECOGNITION V SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 5th Conference on Optical Pattern Recognition CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. 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 0-8194-1541-3 J9 P SOC PHOTO-OPT INS PY 1994 VL 2237 BP 114 EP 123 DI 10.1117/12.169414 PG 10 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BA56W UT WOS:A1994BA56W00014 ER PT B AU CHENG, LJ MAHONEY, JC REYES, GF SUITER, HR AF CHENG, LJ MAHONEY, JC REYES, GF SUITER, HR BE Casasent, DP Chao, TH TI TARGET DETECTION USING AN AOTF HYPERSPECTRAL IMAGER SO OPTICAL PATTERN RECOGNITION V SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 5th Conference on Optical Pattern Recognition CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 29 Z9 30 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1541-3 J9 P SOC PHOTO-OPT INS PY 1994 VL 2237 BP 251 EP 259 DI 10.1117/12.169431 PG 9 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BA56W UT WOS:A1994BA56W00029 ER PT B AU CHAO, TH HEGBLOM, E LAU, B AF CHAO, TH HEGBLOM, E LAU, B BE Casasent, DP Chao, TH TI INTEGRATED WAVELET AND NEURAL PROCESSOR FOR AUTOMATIC TARGET RECOGNITION SO OPTICAL PATTERN RECOGNITION V SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 5th Conference on Optical Pattern Recognition CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,CTR SPACE MICROELECTR 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 0-8194-1541-3 J9 P SOC PHOTO-OPT INS PY 1994 VL 2237 BP 268 EP 274 DI 10.1117/12.169433 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BA56W UT WOS:A1994BA56W00031 ER PT B AU LARAR, AM DRAYSON, SR AF LARAR, AM DRAYSON, SR BE Wang, J Hays, PB TI FEASIBILITY OF GLOBAL TROPOSPHERIC AND TOTAL OZONE MONITORING USING A DOUBLE-ETALON FABRY-PEROT-INTERFEROMETER SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE TROPOSPHERIC O3; GLOBAL MONITORING; NADIR SOUNDING; FABRY-PEROT INTERFEROMETRY; HIGH-RESOLUTION C1 NASA,LANGLEY RES CTR,DIV ATMOSPHER SCI,HAMPTON,VA 23681. 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 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 67 EP 78 DI 10.1117/12.187595 PG 12 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00007 ER PT B AU SCHOEBERL, MR DOUGLASS, AR JACKMAN, CH AF SCHOEBERL, MR DOUGLASS, AR JACKMAN, CH BE Wang, J Hays, PB TI OVERVIEW AND HIGHLIGHTS OF THE UARS MISSION SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Douglass, Anne/D-4655-2012; Jackman, Charles/D-4699-2012 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 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 254 EP 265 DI 10.1117/12.187563 PG 12 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00024 ER PT B AU VAUGHAN, OH AF VAUGHAN, OH BE Wang, J Hays, PB TI NASA SHUTTLE LIGHTNING RESEARCH - OBSERVATIONS OF NOCTURNAL THUNDERSTORMS AND LIGHTNING DISPLAYS AS SEEN DURING RECENT SPACE-SHUTTLE MISSIONS SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE SHUTTLE LIGHTNING RESEARCH; VERTICAL LIGHTNING; TV CAMERAS; PILOT REPORTS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. 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 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 395 EP 403 PG 9 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00037 ER PT B AU RUSSELL, JM MLYNCZAK, MG GORDLEY, LL AF RUSSELL, JM MLYNCZAK, MG GORDLEY, LL BE Wang, J Hays, PB TI AN OVERVIEW OF THE SABER EXPERIMENT FOR THE TIMED MISSION SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 17 Z9 17 U1 0 U2 1 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 406 EP 415 DI 10.1117/12.187579 PG 10 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00038 ER PT B AU MLYNCZAK, MG OLANDER, DS LOPEZPUERTAS, M RUSSELL, JM GORDLEY, LL AF MLYNCZAK, MG OLANDER, DS LOPEZPUERTAS, M RUSSELL, JM GORDLEY, LL BE Wang, J Hays, PB TI RAPID COMPUTATION OF SPECTRALLY INTEGRATED NON-LTE LIMB EMISSION SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE NON-LTE; RADIATIVE TRANSFER; REMOTE SENSING; MESOSPHERE; OZONE C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. RI Lopez Puertas, Manuel/M-8219-2013 OI Lopez Puertas, Manuel/0000-0003-2941-7734 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 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 425 EP 433 DI 10.1117/12.187581 PG 9 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00040 ER PT B AU ALLEN, JE HALTHORE, RN GLENAR, DA MARKHAM, BL AF ALLEN, JE HALTHORE, RN GLENAR, DA MARKHAM, BL BE Wang, J Hays, PB TI TRACE-GAS MEASUREMENTS WITH AN INFRARED SUN PHOTOMETER SO OPTICAL SPECTROSCOPIC TECHNIQUES AND INSTRUMENTATION FOR ATMOSPHERIC AND SPACE RESEARCH SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Optical Spectroscopic Techniques and Instrumentation for Atmospheric and Space Research Conference CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE TRACE GASES; INFRARED; AEROSOLS; SUN PHOTOMETER 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 1 Z9 1 U1 0 U2 0 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1590-2 J9 P SOC PHOTO-OPT INS PY 1994 VL 2266 BP 604 EP 612 PG 9 WC Engineering, Aerospace; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy SC Engineering; Meteorology & Atmospheric Sciences; Remote Sensing; Optics; Spectroscopy GA BB54U UT WOS:A1994BB54U00056 ER PT B AU HEDGELAND, RJ HANSEN, PA HUGHES, DW AF HEDGELAND, RJ HANSEN, PA HUGHES, DW BE Glassford, APM TI AN INTEGRATED APPROACH FOR CONTAMINATION CONTROL AND VERIFICATION FOR THE HUBBLE-SPACE-TELESCOPE 1ST SERVICING MISSION SO OPTICAL SYSTEM CONTAMINATION: EFFECTS, MEASUREMENTS, AND CONTROL IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical System Contamination - Effects, Measurements, and Control IV CY JUL 28-29, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE HUBBLE-SPACE-TELESCOPE; CONTAMINATION ANALYSIS; SERVICING MISSION; CLEANROOM PROTOCOL; CLEANLINESS BUDGETS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. 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 0-8194-1585-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2261 BP 10 EP 21 DI 10.1117/12.190141 PG 12 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BB88K UT WOS:A1994BB88K00002 ER PT B AU HEDGELAND, RJ GREENBERG, B GEER, W HAMMERBACHER, J AF HEDGELAND, RJ GREENBERG, B GEER, W HAMMERBACHER, J BE Glassford, APM TI PROTECTIVE BAG DESIGN FOR THE HUBBLE-SPACE-TELESCOPE SERVICING MISSION CARRIERS SO OPTICAL SYSTEM CONTAMINATION: EFFECTS, MEASUREMENTS, AND CONTROL IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical System Contamination - Effects, Measurements, and Control IV CY JUL 28-29, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE PROTECTIVE BAGS; RIPCORD; LUMALLOY; EXTENDIBLE PLATFORM 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 0-8194-1585-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2261 BP 22 EP 34 DI 10.1117/12.190152 PG 13 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BB88K UT WOS:A1994BB88K00003 ER PT B AU MITCHELL, WJ AF MITCHELL, WJ BE Glassford, APM TI MONITORING DEPOSITION OF MOLECULAR CONTAMINATION ON OPTICS USING A TEMPERATURE-CONTROLLED QUARTZ CRYSTAL MICROBALANCE (TQCM) SO OPTICAL SYSTEM CONTAMINATION: EFFECTS, MEASUREMENTS, AND CONTROL IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical System Contamination - Effects, Measurements, and Control IV CY JUL 28-29, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE TQCM; TEMPERATURE-CONTROLLED QUARTZ CRYSTAL MICROBALANCE; CONTAMINATION C1 NASA,GODDARD SPACE FLIGHT CTR,MCDONNELL DOUGLAS SPACE SYST CO,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 0-8194-1585-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2261 BP 35 EP 45 DI 10.1117/12.190156 PG 11 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BB88K UT WOS:A1994BB88K00004 ER PT B AU LORENTSON, CC OTTENSTEIN, L CHEN, PT RODRIGUEZ, RT AF LORENTSON, CC OTTENSTEIN, L CHEN, PT RODRIGUEZ, RT BE Glassford, APM TI VERIFICATION OF MOLECULAR CONTAMINANT AND ATOMIC OXYGEN MODELING FOR THE EVEEP EXPERIMENT SO OPTICAL SYSTEM CONTAMINATION: EFFECTS, MEASUREMENTS, AND CONTROL IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical System Contamination - Effects, Measurements, and Control IV CY JUL 28-29, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE MODEL; ATOMIC OXYGEN; EVEEP; TQCM; TEFLON 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 0-8194-1585-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2261 BP 72 EP 83 DI 10.1117/12.190159 PG 12 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BB88K UT WOS:A1994BB88K00007 ER PT B AU HAGOPIAN, JG FLEETWOOD, C KESKIKUHA, R LEVITON, D WRIGHT, G BOWERS, C AF HAGOPIAN, JG FLEETWOOD, C KESKIKUHA, R LEVITON, D WRIGHT, G BOWERS, C BE Glassford, APM TI QUALIFICATION OF CO2 JET SPRAY CLEANING FOR USE ON MAGNESIUM FLUORIDE PROTECTED ALUMINUM COATINGS FOR THE CORRECTIVE OPTICS SPACE TELESCOPE AXIAL REPLACEMENT (COSTAR) SO OPTICAL SYSTEM CONTAMINATION: EFFECTS, MEASUREMENTS, AND CONTROL IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Optical System Contamination - Effects, Measurements, and Control IV CY JUL 28-29, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE CO2 JET SPRAY; CARBON DIOXIDE SNOW; CONTAMINATION REMOVAL; UV OPTICS CLEANING; COSTAR 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 0-8194-1585-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2261 BP 334 EP 346 DI 10.1117/12.190154 PG 13 WC Engineering, Aerospace; Optics SC Engineering; Optics GA BB88K UT WOS:A1994BB88K00030 ER PT B AU ALJUMAILY, GA RAOUF, NA EDLOU, SM SIMONS, J AF ALJUMAILY, GA RAOUF, NA EDLOU, SM SIMONS, J BE Rancourt, JD TI OPTICAL-SCATTERING AND MICROSTRUCTURE OF ION-BEAM DEPOSITED METAL COATINGS SO OPTICAL THIN FILMS IV: NEW DEVELOPMENTS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th Conference on Optical Thin Films: New Developments CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS 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 0-8194-1586-3 J9 P SOC PHOTO-OPT INS PY 1994 VL 2262 BP 86 EP 95 DI 10.1117/12.185780 PG 10 WC Materials Science, Coatings & Films; Optics SC Materials Science; Optics GA BB54T UT WOS:A1994BB54T00011 ER PT J AU JOHNSONCOLE, H GILBERT, JA BENNEWITZ, JH AF JOHNSONCOLE, H GILBERT, JA BENNEWITZ, JH TI VARIABLE SENSITIVITY MOIRE INTERFEROMETRY USING BINARY OPTIC TECHNOLOGY SO OPTICS AND LASERS IN ENGINEERING LA English DT Article AB This paper demonstrates the feasibility of optical microlithography as a grating production method for use in variable sensitivity moire interferometry. In this study, a crossed, binary, phase-type grating is produced and replicated onto the surface of the test piece. Moire interferograms are recorded with sensitivities ranging from 2.0 to 0.40 mum/fringe. Generalized expressions are given for variable sensitivity moire interferometry, and experimental tests are conducted to verify analytical arguments. In one of these tests, two different diffraction order pairs are used simultaneously to verify that surface displacement can be measured at different sensitivities. C1 UNIV ALABAMA,HUNTSVILLE,AL 35899. AT&T BELL LABS,ALLENTOWN,PA 18103. RP JOHNSONCOLE, H (reprint author), NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812, USA. NR 11 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0143-8166 J9 OPT LASER ENG JI Opt. Lasers Eng. PY 1994 VL 20 IS 4 BP 241 EP 257 DI 10.1016/0143-8166(94)90029-9 PG 17 WC Optics SC Optics GA NR821 UT WOS:A1994NR82100003 ER PT J AU ARTONI, M BIRMAN, JL AF ARTONI, M BIRMAN, JL TI NONCLASSICAL STATES IN SOLIDS AND DETECTION SO OPTICS COMMUNICATIONS LA English DT Note AB Phonons in a lossless phonon-polariton exhibit remarkable non-classical features. In the small wavevectors side of the polariton energy spectrum, the phonon population in a phonon-polariton coherent state exhibits strong oscillations. This is caused by the highly non-classical structure of the phonon-polariton state in that region of the spectrum. A neutron Scattering experiment enables one to probe the non-classical nature of a phonon-polariton state. C1 CUNY,CITY COLL,DEPT PHYS,NEW YORK,NY 10031. RP ARTONI, M (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 715,GREENBELT,MD 20771, USA. NR 9 TC 22 Z9 22 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 0030-4018 J9 OPT COMMUN JI Opt. Commun. PD JAN 1 PY 1994 VL 104 IS 4-6 BP 319 EP 324 DI 10.1016/0030-4018(94)90563-0 PG 6 WC Optics SC Optics GA MR337 UT WOS:A1994MR33700018 ER PT B AU LOGAN, RT MALEKI, L AF LOGAN, RT MALEKI, L BE Hendrickson, BM TI EFFECTS OF PHASE NOISE FROM LASERS AND OTHER SOURCES ON PHOTONIC RF PHASED-ARRAYS SO OPTOELECTRONIC SIGNAL PROCESSING FOR PHASED-ARRAY ANTENNAS IV SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 4th SPIE Conference on Optoelectronic Signal Processing for Phased-Array Antennas CY JAN 26-27, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. 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 0-8194-1450-6 J9 P SOC PHOTO-OPT INS PY 1994 VL 2155 BP 162 EP 168 PG 7 WC Optics SC Optics GA BA89M UT WOS:A1994BA89M00019 ER PT B AU GILMOUR, S MARDER, SR PERRY, JW CHENG, LT AF GILMOUR, S MARDER, SR PERRY, JW CHENG, LT BE Marder, SR Perry, JW TI ENHANCED 2ND-ORDER OPTICAL NONLINEARITIES IN EXTENDED THIOPHENE CONTAINING COMPOUNDS SO ORGANIC, METALLO-ORGANIC, AND POLYMERIC MATERIALS FOR NONLINEAR OPTICAL APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications CY JAN 25-26, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. RI Perry, Joseph/B-7191-2011 OI Perry, Joseph/0000-0003-1101-7337 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 0-8194-1438-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2143 BP 117 EP 123 DI 10.1117/12.173811 PG 7 WC Optics; Polymer Science SC Optics; Polymer Science GA BA61D UT WOS:A1994BA61D00012 ER PT B AU BOURHILL, G CHENG, LT GORMAN, CB LEE, G MARDER, SR PERRY, JW PERRY, MJ TIEMANN, BG AF BOURHILL, G CHENG, LT GORMAN, CB LEE, G MARDER, SR PERRY, JW PERRY, MJ TIEMANN, BG BE Marder, SR Perry, JW TI EXPERIMENTAL DEMONSTRATION OF THE RELATIONSHIP BETWEEN THE 2ND-ORDER AND 3RD-ORDER POLARIZABILITIES OF CONJUGATED DONOR-ACCEPTOR MOLECULES SO ORGANIC, METALLO-ORGANIC, AND POLYMERIC MATERIALS FOR NONLINEAR OPTICAL APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications CY JAN 25-26, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. RI Perry, Joseph/B-7191-2011 OI Perry, Joseph/0000-0003-1101-7337 NR 0 TC 4 Z9 4 U1 0 U2 2 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1438-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2143 BP 153 EP 163 DI 10.1117/12.173815 PG 11 WC Optics; Polymer Science SC Optics; Polymer Science GA BA61D UT WOS:A1994BA61D00016 ER PT B AU MANSOUR, K FUQUA, P MARDER, SR DUNN, B PERRY, JW AF MANSOUR, K FUQUA, P MARDER, SR DUNN, B PERRY, JW BE Marder, SR Perry, JW TI SOLID-STATE OPTICAL LIMITING MATERIALS BASED ON PHTHALOCYANINE CONTAINING POLYMERS AND ORGANICALLY-MODIFIED SOL-GELS SO ORGANIC, METALLO-ORGANIC, AND POLYMERIC MATERIALS FOR NONLINEAR OPTICAL APPLICATIONS SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Organic, Metallo-Organic, and Polymeric Materials for Nonlinear Optical Applications CY JAN 25-26, 1994 CL LOS ANGELES, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. RI Perry, Joseph/B-7191-2011 OI Perry, Joseph/0000-0003-1101-7337 NR 0 TC 26 Z9 26 U1 0 U2 3 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1438-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2143 BP 239 EP 250 DI 10.1117/12.173824 PG 12 WC Optics; Polymer Science SC Optics; Polymer Science GA BA61D UT WOS:A1994BA61D00025 ER PT B AU SELKER, MD AFZAL, RS REICHERT, P AF SELKER, MD AFZAL, RS REICHERT, P BE Fan, TY Chai, B TI AUTOMATICALLY TEM00 MODE SELECTED SIDE PUMPED ND-YLF LASER SO OSA PROCEEDINGS ON ADVANCED SOLID-STATE LASERS SE OPTICAL SOCIETY OF AMERICA PROCEEDINGS LA English DT Proceedings Paper CT Topical Meeting on Advanced Solid-State Lasers CY FEB 07-10, 1994 CL SALT LAKE CITY, UT SP OPT SOC AMER, LASERS & ELECTRO OPT SOC, IEEE, NIGHT VIS & ELECTR SENSORS DIRECTORATE, USA, OFF SCI RES, ADV RES PROJECTS AGCY C1 NASA,GODDARD SPACE FLIGHT CTR,EXPTL INSTRUMENTAT BRANCH,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU OPTICAL SOC AMERICA PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 BN 1-55752-323-1 J9 OSA PROC PY 1994 VL 20 BP 11 EP 14 PG 4 WC Optics; Physics, Condensed Matter; Spectroscopy SC Optics; Physics; Spectroscopy GA BB93D UT WOS:A1994BB93D00003 ER PT B AU RODRIGUEZ, WJ BARNES, NP NARANJO, FL FILER, ED AF RODRIGUEZ, WJ BARNES, NP NARANJO, FL FILER, ED BE Fan, TY Chai, B TI 1.75 mu M PUMPED HO-TM-LUAG HIGH EFFICIENCY LASER SO OSA PROCEEDINGS ON ADVANCED SOLID-STATE LASERS SE OPTICAL SOCIETY OF AMERICA PROCEEDINGS LA English DT Proceedings Paper CT Topical Meeting on Advanced Solid-State Lasers CY FEB 07-10, 1994 CL SALT LAKE CITY, UT SP OPT SOC AMER, LASERS & ELECTRO OPT SOC, IEEE, NIGHT VIS & ELECTR SENSORS DIRECTORATE, USA, OFF SCI RES, ADV RES PROJECTS AGCY C1 NASA,LANGLEY RES CTR,NATL RES COUNCIL,HAMPTON,VA 23681. NR 0 TC 1 Z9 1 U1 0 U2 0 PU OPTICAL SOC AMERICA PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 BN 1-55752-323-1 J9 OSA PROC PY 1994 VL 20 BP 104 EP 108 PG 5 WC Optics; Physics, Condensed Matter; Spectroscopy SC Optics; Physics; Spectroscopy GA BB93D UT WOS:A1994BB93D00023 ER PT B AU BARNES, NP MURRAY, KE JANI, MG HARRELL, SR AF BARNES, NP MURRAY, KE JANI, MG HARRELL, SR BE Fan, TY Chai, B TI MID-INFRARED PARAMETRIC OSCILLATOR TUNED VIA PUMP WAVELENGTH TUNING SO OSA PROCEEDINGS ON ADVANCED SOLID-STATE LASERS SE OPTICAL SOCIETY OF AMERICA PROCEEDINGS LA English DT Proceedings Paper CT Topical Meeting on Advanced Solid-State Lasers CY FEB 07-10, 1994 CL SALT LAKE CITY, UT SP OPT SOC AMER, LASERS & ELECTRO OPT SOC, IEEE, NIGHT VIS & ELECTR SENSORS DIRECTORATE, USA, OFF SCI RES, ADV RES PROJECTS AGCY C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU OPTICAL SOC AMERICA PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 BN 1-55752-323-1 J9 OSA PROC PY 1994 VL 20 BP 454 EP 457 PG 4 WC Optics; Physics, Condensed Matter; Spectroscopy SC Optics; Physics; Spectroscopy GA BB93D UT WOS:A1994BB93D00109 ER PT B AU ALVAREZ, JM VAUGHN, MA AF ALVAREZ, JM VAUGHN, MA BE Maclin, AP TI NUMERICAL CALCULATION OF CLOUD OPTICAL EXTINCTION FROM LIDAR SO OSA PROCEEDINGS ON INAUGURAL FORUM FOR THE RESEARCH CENTER FOR OPTICAL PHYSICS SE OPTICAL SOCIETY OF AMERICA PROCEEDINGS LA English DT Proceedings Paper CT Inaugural Forum for the Research-Center-for-Optical-Physics CY SEP 22-23, 1993 CL HAMPTON UNIV, HAMPTON, VA SP OPT SOC AMER, NASA HEADQUARTERS, MINORITY UNIV RES & EDUC DIV HO HAMPTON UNIV C1 LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 2 Z9 2 U1 0 U2 0 PU OPTICAL SOC AMERICA PI WASHINGTON PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 BN 1-55752-320-7 J9 OSA PROC PY 1994 VL 19 BP 90 EP 95 PG 6 WC Physics, Applied SC Physics GA BC09H UT WOS:A1994BC09H00013 ER PT B AU Lonsdale, C AF Lonsdale, C BE Hensler, G Theis, C Gallagher, J TI Ultraluminous infrared galaxies SO PANCHROMATIC VIEW OF GALAXIES - THEIR EVOLUTIONARY PUZZLE LA English DT Proceedings Paper CT International Scientific Spring Meeting of the Astronomische-Gesellschaft on Panchromatic View of Galaxies - Their Evolutionary Puzzle CY MAR 08-12, 1993 CL KIEL, GERMANY SP Astronom Gesell C1 CALTECH,JET PROP LAB,CTR INFRARED PROC & ANAL,PASADENA,CA 91125. NR 0 TC 1 Z9 1 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-145-5 PY 1994 BP 83 EP 97 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BE59U UT WOS:A1994BE59U00010 ER PT B AU CHANDLER, MA AF CHANDLER, MA BE Klein, GD TI DEPICTION OF MODERN AND PANGEAN DESERTS - EVALUATION OF GCM HYDROLOGICAL DIAGNOSTICS FOR PALEOCLIMATE STUDIES SO PANGEA: PALEOCLIMATE, TECTONICS, AND SEDIMENTATION DURING ACCRETION, ZENITH AND BREAKUP OF A SUPERCONTINENT SE GEOLOGICAL SOCIETY OF AMERICA SPECIAL PAPERS LA English DT Proceedings Paper CT International Workshop of Project PANGEA - Paleoclimate, Tectonics, and Sedimentation During Accretion, Zenith, and Breakup of a Supercontinent CY MAY, 1992 CL LAWRENCE, KS SP INT UNION GEOL SCI, GLOBAL SEDIMENTARY GEOL PROGRAM C1 NASA,GODDARD INST SPACE STUDIES,NEW YORK,NY 10025. NR 0 TC 1 Z9 1 U1 0 U2 0 PU GEOLOGICAL SOC AMERICA INC PI BOULDER PA 3300 PENROSE PLACE, PO BOX 9140, BOULDER, CO 80301 BN 0-8137-2288-8 J9 GEOL S AM S PY 1994 IS 288 BP 117 EP 138 PG 22 WC Geology; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; Paleontology SC Geology; Meteorology & Atmospheric Sciences; Paleontology GA BC69A UT WOS:A1994BC69A00008 ER PT B AU Baring, MG AF Baring, MG BE TranThanhVan, J Fontaine, G Hinds, E TI Gamma-ray bursts SO PARTICLE ASTROPHYSICS, ATOMIC PHYSICS AND GRAVITATION SE MORIOND PARTICLE PHYSICS MEETINGS LA English DT Proceedings Paper CT Astrophysics Session on Particle Astrophysics, Atomic Physics and Gravitation, at the XXIXth Rencontre de Moriond CY JAN 22-29, 1994 CL VILLARS SUR OLLON, SWITZERLAND SP CNRS, IN2P3, CEA, NSF C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-161-7 J9 MORIOND PAR PY 1994 BP 13 EP 21 PG 9 WC Astronomy & Astrophysics; Physics, Atomic, Molecular & Chemical; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BE72E UT WOS:A1994BE72E00002 ER PT B AU Ramanamurthy, PV Mattox, JR AF Ramanamurthy, PV Mattox, JR BE TranThanhVan, J Fontaine, G Hinds, E TI Braking index of Geminga pulsar SO PARTICLE ASTROPHYSICS, ATOMIC PHYSICS AND GRAVITATION SE MORIOND PARTICLE PHYSICS MEETINGS LA English DT Proceedings Paper CT Astrophysics Session on Particle Astrophysics, Atomic Physics and Gravitation, at the XXIXth Rencontre de Moriond CY JAN 22-29, 1994 CL VILLARS SUR OLLON, SWITZERLAND SP CNRS, IN2P3, CEA, NSF C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU EDITIONS FRONTIERES PI DREUX PA 7 AVENUE KENNEDY, 28100 DREUX, FRANCE BN 2-86332-161-7 J9 MORIOND PAR PY 1994 BP 41 EP 45 PG 5 WC Astronomy & Astrophysics; Physics, Atomic, Molecular & Chemical; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BE72E UT WOS:A1994BE72E00005 ER PT B AU MISHCHENKO, MI TRAVIS, LD MACKOWSKI, DW AF MISHCHENKO, MI TRAVIS, LD MACKOWSKI, DW BE Lynch, DK TI T-MATRIX COMPUTATIONS OF LIGHT SCATTERING BY LARGE NONSPHERICAL PARTICLES - RECENT ADVANCES SO PASSIVE INFRARED REMOTE SENSING OF CLOUDS AND THE ATMOSPHERE II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Passive Infrared Remote Sensing of Clouds and the Atmosphere II CY SEP 26-28, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, CNR, ITALIAN ASSOC REMOTE SENSING C1 NASA,GODDARD INST SPACE STUDIES,HUGHES STX CORP,NEW YORK,NY 10025. RI Mishchenko, Michael/D-4426-2012 NR 0 TC 0 Z9 0 U1 0 U2 3 PU SPIE - INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA PO BOX 10, BELLINGHAM, WA 98227-0010 BN 0-8194-1639-8 J9 P SOC PHOTO-OPT INS PY 1994 VL 2309 BP 72 EP 83 PG 12 WC Remote Sensing SC Remote Sensing GA BC13W UT WOS:A1994BC13W00010 ER PT J AU Watson, AB Ahumada, AJ AF Watson, A. B. Ahumada, A. J., Jr. TI A modular, portable model of image fidelity SO PERCEPTION LA English DT Meeting Abstract C1 [Watson, A. B.; Ahumada, A. J., Jr.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PION LTD PI LONDON PA 207 BRONDESBURY PARK, LONDON NW2 5JN, ENGLAND SN 0301-0066 J9 PERCEPTION JI Perception PY 1994 VL 23 SU S BP 95 EP 96 PG 2 WC Ophthalmology; Psychology; Psychology, Experimental SC Ophthalmology; Psychology GA V17AN UT WOS:000207910200247 ER PT B AU CHAO, TH YACOUBIAN, A LAU, B HEGBLOM, E MICELI, WJ AF CHAO, TH YACOUBIAN, A LAU, B HEGBLOM, E MICELI, WJ BE Horner, JL Javidi, B Kowel, ST TI OPTICAL WAVELET PROCESSOR USING CASCADED LCTV SLMS SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,CTR SPACE MICROELECTR 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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 23 EP 32 DI 10.1117/12.187285 PG 10 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00003 ER PT B AU JUDAY, RD AF JUDAY, RD BE Horner, JL Javidi, B Kowel, ST TI MUTUALLY OPTIMAL CODING FOR OPTICAL CORRELATION PATTERN-RECOGNITION SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE OPTICAL CORRELATORS; FILTER THEORY; OPTIMAL FILTERS C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. 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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 70 EP 76 DI 10.1117/12.187327 PG 7 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00008 ER PT B AU JUDAY, RD BARTON, RS MONROE, SE AF JUDAY, RD BARTON, RS MONROE, SE BE Horner, JL Javidi, B Kowel, ST TI EXPERIMENTAL CORRELATOR RESULTS WITH COUPLED MODULATORS AND ADVANCED METRICS SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. 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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 76 EP 89 DI 10.1117/12.187328 PG 14 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00009 ER PT B AU LIU, HK HE, QB AF LIU, HK HE, QB BE Horner, JL Javidi, B Kowel, ST TI A NOVEL NONLINEAR BIFURCATING OPTICAL ASSOCIATIVE RETRIEVAL AND PATTERN-RECOGNITION TECHNIQUE SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE OPTICAL PATTERN RECOGNITION; NONLINEAR; BIFURCATING; PHOTOREFRACTIVE CRYSTAL 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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 133 EP 147 DI 10.1117/12.187280 PG 15 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00015 ER PT B AU BUALAT, MG GRAY, CK AF BUALAT, MG GRAY, CK BE Horner, JL Javidi, B Kowel, ST TI SPACE STRUCTURE VIBRATION CONTROL USING AN OPTICAL MATRIX PROCESSOR SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE OPTICAL MATRIX PROCESSORS; FLEXIBLE STRUCTURES; CONTROL SYSTEMS C1 NASA,AMES RES CTR,COMP SYST RES BRANCH,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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 214 EP 224 DI 10.1117/12.187289 PG 11 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00023 ER PT B AU GARY, CK AF GARY, CK BE Horner, JL Javidi, B Kowel, ST TI IMPLEMENTATION AND ASSESSMENT OF ADVANCED ANALOG OPTICAL VECTOR MATRIX PROCESSOR SO PHOTONICS FOR PROCESSORS, NEURAL NETWORKS, AND MEMORIES II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Processors, Neural Networks, and Memories II CY JUL 25-28, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE OPTICAL COMPUTING; OPTICAL MATRIX PROCESSOR; ACOUSTOOPTICS; LIQUID CRYSTAL SPATIAL LIGHT MODULATOR; ANALOG COMPUTING 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 0-8194-1621-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2297 BP 237 EP 249 DI 10.1117/12.187291 PG 13 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BB65X UT WOS:A1994BB65X00025 ER PT B AU LIU, DTH KIRKHAM, H JOHNSTON, AR BERGMAN, LA BRISTOW, JPG SCHOESS, J AF LIU, DTH KIRKHAM, H JOHNSTON, AR BERGMAN, LA BRISTOW, JPG SCHOESS, J BE Taylor, EW TI MICRO-SENSOR NETWORKS SO PHOTONICS FOR SPACE ENVIRONMENTS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Space Environments II CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 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 0-8194-1519-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2215 BP 29 EP 38 DI 10.1117/12.177644 PG 10 WC Engineering, Aerospace; Astronomy & Astrophysics; Engineering, Electrical & Electronic; Optics SC Engineering; Astronomy & Astrophysics; Optics GA BA83Q UT WOS:A1994BA83Q00005 ER PT B AU LIU, DTH JOHNSTON, AR AF LIU, DTH JOHNSTON, AR BE Taylor, EW TI THEORY OF RADIATION-INDUCED ABSORPTION IN OPTICAL FIBERS SO PHOTONICS FOR SPACE ENVIRONMENTS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Space Environments II CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,PASADENA,CA 91109. 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 0-8194-1519-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2215 BP 58 EP 63 DI 10.1117/12.177647 PG 6 WC Engineering, Aerospace; Astronomy & Astrophysics; Engineering, Electrical & Electronic; Optics SC Engineering; Astronomy & Astrophysics; Optics GA BA83Q UT WOS:A1994BA83Q00008 ER PT B AU LABEL, KA MARSHALL, P DALE, C STASSINOPOULOS, EG JOHNSTON, A CRABTREE, CM KIM, H AF LABEL, KA MARSHALL, P DALE, C STASSINOPOULOS, EG JOHNSTON, A CRABTREE, CM KIM, H BE Taylor, EW TI SINGLE EVENT EFFECTS ON ASSOCIATED ELECTRONICS FOR FIBER OPTIC SYSTEMS SO PHOTONICS FOR SPACE ENVIRONMENTS II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Photonics for Space Environments II CY APR 05-06, 1994 CL ORLANDO, FL SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS 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 0-8194-1519-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2215 BP 74 EP 81 DI 10.1117/12.177625 PG 8 WC Engineering, Aerospace; Astronomy & Astrophysics; Engineering, Electrical & Electronic; Optics SC Engineering; Astronomy & Astrophysics; Optics GA BA83Q UT WOS:A1994BA83Q00010 ER PT J AU BANKS, BA AF BANKS, BA TI TWIST IN NASA RESEARCH BENEFITS CANCER-THERAPY SO PHOTONICS SPECTRA LA English DT Note RP BANKS, BA (reprint author), NASA LEWIS RES CTR,ELECTR PHYS BRANCH,MS 302-1,21000 BROOKPARK RD,CLEVELAND,OH 44135, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAURIN PUBL CO INC PI PITTSFIELD PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 SN 0731-1230 J9 PHOTON SPECTRA JI Photon. Spect. PD JAN PY 1994 VL 28 IS 1 BP 18 EP 18 PG 1 WC Optics SC Optics GA MU440 UT WOS:A1994MU44000007 ER PT J AU CLEGGETTHALEIM, P AF CLEGGETTHALEIM, P TI FIBER OPTICS PART OF TELEPRESENCE TESTED IN ANTARCTIC SO PHOTONICS SPECTRA LA English DT Article RP CLEGGETTHALEIM, P (reprint author), NASA,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAURIN PUBL CO INC PI PITTSFIELD PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 SN 0731-1230 J9 PHOTON SPECTRA JI Photon. Spect. PD JAN PY 1994 VL 28 IS 1 BP 142 EP 142 PG 1 WC Optics SC Optics GA MU440 UT WOS:A1994MU44000056 ER PT J AU REDMOND, C ELLIS, L AF REDMOND, C ELLIS, L TI NEW HOPE FOR CATARACT SUFFERERS SO PHOTONICS SPECTRA LA English DT Article RP REDMOND, C (reprint author), NASA,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU LAURIN PUBL CO INC PI PITTSFIELD PA BERKSHIRE COMMON PO BOX 1146, PITTSFIELD, MA 01202 SN 0731-1230 J9 PHOTON SPECTRA JI Photon. Spect. PD JAN PY 1994 VL 28 IS 1 BP 142 EP 142 PG 1 WC Optics SC Optics GA MU440 UT WOS:A1994MU44000055 ER PT J AU KAZANAS, D AF KAZANAS, D TI HIGH-ENERGY GAMMA-RAYS FROM ACTIVE GALACTIC NUCLEI SO PHYSICA SCRIPTA LA English DT Article; Proceedings Paper CT International Workshop on Acceleration and Radiation Generation in Space and Laboratory Plasmas CY AUG 29-SEP 04, 1993 CL KARDAMYLI, GREECE ID BLACK-HOLES; QUASARS; SHOCKS AB Orders of magnitude and the basic processes associated with Active Galactic Nuclei (AGN) are outlined. Particular emphasis is given on the recent high energy (100 MeV-1 TeV) gamma-ray observations from radio loud AGN and is argued that AGN can, in principle, be the sites of acceleration of particles to energies in excess of 1 TeV. It is indicated that the observed gamma-ray emission cannot originate in a stationary plasma but from plasma in bulk relativistic motion with gamma greater than or equal to 10 and arguments are given as to the dynamical origin of such relativistic outflows. RP KAZANAS, D (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 665,GREENBELT,MD 20771, USA. NR 14 TC 0 Z9 0 U1 0 U2 0 PU ROYAL SWEDISH ACAD SCIENCES PI STOCKHOLM PA PUBL DEPT BOX 50005, S-104 05 STOCKHOLM, SWEDEN SN 0281-1847 J9 PHYS SCRIPTA JI Phys. Scr. PY 1994 VL T52 BP 110 EP 114 DI 10.1088/0031-8949/1994/T52/019 PG 5 WC Physics, Multidisciplinary SC Physics GA PR472 UT WOS:A1994PR47200020 ER PT J AU AMADOR, C BOZZOLO, G AF AMADOR, C BOZZOLO, G TI FORMATION ENERGY OF DISORDERED ALLOYS FROM THE ENERGETICS OF ORDERED COMPOUNDS SO PHYSICAL REVIEW B LA English DT Article ID CLUSTER AB The cluster expansion technique is used in combination with first-principles calculations of the total energy of ordered compounds to study the energetics of the disordered phase for a number of alloy systems. The effect of short-range order, as seen in the energy differences between an alloy with the configuration corresponding to finite temperature and the perfectly random one is studied. The role of relaxation due to large size mismatch is discussed in terms of an effective cluster volume approximation. Very good agreement with measured energies of formation is obtained when short-range order and relaxation effects are taken into account. C1 ANALEX CORP, BROOKPARK, OH 44142 USA. NASA, LEWIS RES CTR, CLEVELAND, OH 44135 USA. RP UNIV NACL AUTONOMA MEXICO, FAC QUIM, CIUDAD UNIV, MEXICO CITY 04510, DF, MEXICO. RI Amador-Bedolla, Carlos/E-7448-2010 OI Amador-Bedolla, Carlos/0000-0001-9590-2645 NR 16 TC 15 Z9 15 U1 0 U2 0 PU AMER PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 2469-9950 EI 2469-9969 J9 PHYS REV B JI Phys. Rev. B PD JAN 1 PY 1994 VL 49 IS 2 BP 956 EP 960 DI 10.1103/PhysRevB.49.956 PG 5 WC Physics, Condensed Matter SC Physics GA MT491 UT WOS:A1994MT49100023 ER PT J AU MARSHAK, A DAVIS, A CAHALAN, R WISCOMBE, W AF MARSHAK, A DAVIS, A CAHALAN, R WISCOMBE, W TI BOUNDED CASCADE MODELS AS NONSTATIONARY MULTIFRACTALS SO PHYSICAL REVIEW E LA English DT Article ID FULLY-DEVELOPED TURBULENCE; GENERALIZED DIMENSIONS; STRANGE ATTRACTORS; FORMALISM; FRACTALS; FLOWS AB We investigate a class of bounded random-cascade models which ark multiplicative by construction yet additive with respect to some but not all of their properties. We assume the multiplicative weights go to unity as the cascade proceeds; then the resulting field has upper and lower bounds. Two largely complementary multifractal statistical methods of analysis are used, singular measures and structure functions yielding, respectively, the exponent hierarchies D-q and H-q. We study in more detail a specific. subclass of one-dimensional models with weights 1+1(1-2p)r(n-1)(H) at relative scale r(n) = 2(-n) after n cascade steps. The parameter H > O regulates the degree of nonstationarity; at H=O, stationarity prevails and singular ''p-model'' cascades [Meneveau and Sreenivasan, Phys. Rev, Lett. 59, 1424 (1987)] are retrieved. Our model has at once large-scale stationarity and small scale nonstationarity with stationary increments. Due to the boundedness, the D-q all converge to unity with increasing n; the rate of convergence is estimated and the results are discussed in terms of ''residual'' multifractality (a spurious singularity spectrum due to finite-size effects). The structure-function exponents are more interesting: H-q = min {H,1/q} in the limit n --> infinity. We further focus on the cases q = 1, related to the fractal structure of the graph, q = 2, related to the energy spectrum, and q = 1/H, the critical order beyond which our multiplicative (and multiscaling) bounded cascade model can be statistically distinguished from fractional Brownian motion, the corresponding additive (and monoscaling) model. This bifurcation in statistical behavior can be interpreted as a first-order phase transition traceable to the boundedness, itself inherited from the large-scale stationarity. Some geophysical applications are briefly discussed. C1 NASA,GSFC,UNIV SPACE RES ASSOC,GREENBELT,MD 20771. SCI SYST & APPLICAT INC,LANHAM,MD 20706. RP MARSHAK, A (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CLIMATE & RADIAT BRANCH,GREENBELT,MD 20771, USA. RI Cahalan, Robert/E-3462-2012; Wiscombe, Warren/D-4665-2012; Marshak, Alexander/D-5671-2012 OI Cahalan, Robert/0000-0001-9724-1270; Wiscombe, Warren/0000-0001-6844-9849; NR 43 TC 137 Z9 139 U1 0 U2 1 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD JAN PY 1994 VL 49 IS 1 BP 55 EP 69 DI 10.1103/PhysRevE.49.55 PG 15 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA MV514 UT WOS:A1994MV51400015 ER PT J AU JOHN, S WILSON, JW AF JOHN, S WILSON, JW TI QUANTUM DYNAMICS AS A STOCHASTIC-PROCESS SO PHYSICAL REVIEW E LA English DT Article ID PHASE-SPACE AB The quantum Liouville equation is solved in the Wigner representation using generalized Mont Carlo techniques. For small increments of time, the solution is represented as a sequential classical evolution in phase space followed by a quantum ''jump'' distribution in momentum space, with the latter simulated via a stochastic method. Extending the work initiated by John and Remler [Ann Phys. (N.Y.) 180, 152 (1987)] the technique is developed and validated for higher dimensions. Also, an alternative algorithm is developed and applied to study motion of a quantum system in an anharmonic quartic potential well, with significantly improved results. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. RP JOHN, S (reprint author), VIGYAN INC,30 RES DR,HAMPTON,VA 23666, USA. NR 18 TC 3 Z9 3 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD JAN PY 1994 VL 49 IS 1 BP 145 EP 156 DI 10.1103/PhysRevE.49.145 PG 12 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA MV514 UT WOS:A1994MV51400026 PM 9961202 ER PT J AU DEISSLER, RJ AF DEISSLER, RJ TI THERMALLY SUSTAINED STRUCTURE IN CONVECTIVELY UNSTABLE SYSTEMS SO PHYSICAL REVIEW E LA English DT Note ID PLANE POISEUILLE FLOW; HORIZONTAL FLOW; NOISE; INSTABILITY; WAVES; INTERMITTENCY; PATTERNS; MODEL AB The complex Ginzburg-Landau equation with a thermal noise term is studied under conditions when the system is convectively unstable. Under these conditions, the noise is selectively and spatially amplified giving rise to a noise-sustained structure. Analytical results, applicable to a wide range of physical systems, are derived for the variance, and the coefficients and thermal noise term are determined for Taylor-Couette flow with an axial through-flow. Comparison is made to recent experiments. RP DEISSLER, RJ (reprint author), NASA,LEWIS RES CTR,OHIO AEROSP INST,INST COMPUTAT MECH PROPULS,CLEVELAND,OH 44135, USA. NR 25 TC 6 Z9 6 U1 0 U2 0 PU AMERICAN PHYSICAL SOC PI COLLEGE PK PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA SN 1063-651X J9 PHYS REV E JI Phys. Rev. E PD JAN PY 1994 VL 49 IS 1 BP R31 EP R34 DI 10.1103/PhysRevE.49.R31 PG 4 WC Physics, Fluids & Plasmas; Physics, Mathematical SC Physics GA MV514 UT WOS:A1994MV51400009 ER PT S AU SMITH, MF AF SMITH, MF BE Holtet, JA Egeland, A TI TRANSIENT DAYSIDE RECONNECTION AND ITS EFFECTS ON THE IONOSPHERE SO PHYSICAL SIGNATURES OF MAGNETOSPHERIC BOUNDARY LAYER PROCESSES SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES C, MATHEMATICAL AND PHYSICAL SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on Physical Signatures of Magnetospheric Boundary Layer Processes CY MAY 09-14, 1993 CL HONEFOSS, NORWAY SP NATO C1 NASA,GODDARD SPACE FLIGHT CTR,GSFC,EXTRATERR PHYS LAB,GREENBELT,MD 20771. NR 0 TC 8 Z9 8 U1 0 U2 2 PU KLUWER ACADEMIC PUBL PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 0258-2023 BN 0-7923-2763-2 J9 NATO ADV SCI INST SE PY 1994 VL 425 BP 275 EP 289 PG 15 WC Geosciences, Multidisciplinary SC Geology GA BA82K UT WOS:A1994BA82K00019 ER PT S AU RYBICKI, GC WILLIAMS, WS AF RYBICKI, GC WILLIAMS, WS BE Manasreh, MO vonBardeleben, HJ Pomrenke, GS Lannoo, M Talwar, DN TI PROTON IRRADIATION DAMAGE IN ZN AND CD DOPED INP SO PHYSICS AND APPLICATIONS OF DEFECTS IN ADVANCED SEMICONDUCTORS SE MATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS LA English DT Proceedings Paper CT Symposium on Physics and Applications of Defects in Advanced Semiconductors, at the 1993 Fall Meeting of the Materials-Research-Society CY NOV 29-DEC 01, 1993 CL BOSTON, MA SP MAT RES SOC C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 1 Z9 1 U1 0 U2 0 PU MATERIALS RESEARCH SOC PI PITTSBURGH PA 9800 MCKNIGHT RD, SUITE 327, PITTSBURGH, PA 15237 SN 0272-9172 BN 1-55899-224-3 J9 MATER RES SOC SYMP P PY 1994 VL 325 BP 311 EP 316 PG 6 WC Materials Science, Characterization & Testing; Physics, Condensed Matter SC Materials Science; Physics GA BA45Z UT WOS:A1994BA45Z00041 ER PT J AU COLLIS, SS LELE, SK MOSER, RD ROGERS, MM AF COLLIS, SS LELE, SK MOSER, RD ROGERS, MM TI THE EVOLUTION OF A PLANE MIXING LAYER WITH SPANWISE NONUNIFORM FORCING SO PHYSICS OF FLUIDS LA English DT Article ID FREE-SHEAR-LAYER; INSTABILITY; TRANSITION; VORTICES; MOTION; ORIGIN; SCALE AB The experimental studies of Nygaard and Glezer (AIAA Paper No. AIAA-91-0625, 1991) show that vortical structures shaped like a ''chain-link fence'' form in a plane mixing layer subjected to spanwise nonuniform phase excitation. Using direct numerical simulation of temporally evolving mixing layers, initial conditions have been developed that result in flows with vortex structures similar to those observed in the experiments. The simplest initial condition that leads to the experimentally observed structures is composed of a pair of equal-strength oblique disturbances and this initial condition is a low-order Fourier approximation to the square-wave excitation used in the experiments. This simple disturbance suggests an explanation for the short wavelength cutoff observed in the experiments and allows comparison with previous stability analyses. The simulated flow fields show that the chain-link-fence vortex structures are different from the usual rib/roller mixing layer structures. Furthermore, detailed examination of the overlap region between adjacent structures shows that ''local pairing'' does not occur in the chain-link-fence flow due to strong self-induction effects. By increasing the spanwise wavelength, self-induction effects can be delayed and regions of local pairing are observed. However, the local pairings do not lead to a single amalgamated vortex at late times as is observed in two-dimensional pairings. Finally, it is shown that the chain-link-fence flow produces increased mixing compared to standard rib/roller flows. C1 STANFORD UNIV,DEPT AERONAUT & ASTRONAUT,STANFORD,CA 94305. NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. RP COLLIS, SS (reprint author), STANFORD UNIV,DEPT MECH ENGN,STANFORD,CA 94305, USA. NR 27 TC 23 Z9 24 U1 2 U2 4 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-6631 J9 PHYS FLUIDS JI Phys. Fluids PD JAN PY 1994 VL 6 IS 1 BP 381 EP 396 DI 10.1063/1.868035 PG 16 WC Mechanics; Physics, Fluids & Plasmas SC Mechanics; Physics GA NA737 UT WOS:A1994NA73700038 ER PT J AU SCHROER, A NEUKIRCH, T KIESSLING, M HESSE, M SCHINDLER, K AF SCHROER, A NEUKIRCH, T KIESSLING, M HESSE, M SCHINDLER, K TI NUMERICAL BIFURCATION STUDY OF A NONLINEAR CURRENT SHEET MODEL SO PHYSICS OF PLASMAS LA English DT Note ID CURRENT-CARRYING PLASMAS; STATISTICAL-MECHANICS; STABILITY ANALYSIS; SYMMETRY-BREAKING AB Results are presented of a numerical investigation of the strongly nonlinear bifurcation properties of an isothermal current sheet model which has previously been investigated in the weakly nonlinear regime by analytical methods. With the method used, the linear stability of the bifurcating branch is also checked. The results have applications in the stability of plasma systems with current sheets, e.g., the Earth's magnetotail or solar coronal arcades. C1 RUTGERS STATE UNIV,DEPT MATH,NEW BRUNSWICK,NJ 08903. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP SCHROER, A (reprint author), RUHR UNIV BOCHUM,INST THEORET PHYS 4,D-44780 BOCHUM,GERMANY. RI Neukirch, Thomas/C-1981-2009; Hesse, Michael/D-2031-2012 OI Neukirch, Thomas/0000-0002-7597-4980; NR 36 TC 16 Z9 16 U1 0 U2 1 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 1070-664X J9 PHYS PLASMAS JI Phys. Plasmas PD JAN PY 1994 VL 1 IS 1 BP 213 EP 215 PG 3 WC Physics, Fluids & Plasmas SC Physics GA MX809 UT WOS:A1994MX80900030 ER PT J AU DAVIDSON, G AF DAVIDSON, G TI ATMOSPHERIC HEATING AND HUBBLES LIFETIME - REPLY SO PHYSICS TODAY LA English DT Letter RP DAVIDSON, G (reprint author), NASA,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI WOODBURY PA CIRCULATION FULFILLMENT DIV, 500 SUNNYSIDE BLVD, WOODBURY, NY 11797-2999 SN 0031-9228 J9 PHYS TODAY JI Phys. Today PD JAN PY 1994 VL 47 IS 1 BP 69 EP 69 PG 1 WC Physics, Multidisciplinary SC Physics GA MV517 UT WOS:A1994MV51700026 ER PT J AU ROBERTS, DP SHORT, NM MALONEY, AP NELSON, EB SCHAFF, DA AF ROBERTS, DP SHORT, NM MALONEY, AP NELSON, EB SCHAFF, DA TI ROLE OF COLONIZATION IN BIOCONTROL - STUDIES WITH ENTEROBACTER-CLOACAE SO PLANT SCIENCE LA English DT Article; Proceedings Paper CT 10th Annual Meeting of the Mid-Atlantic-Plant-Molecular-Biology-Society CY JUL 15-16, 1993 CL UNIV DELAWARE, NEWARK, DE SP MID ATLANTIC PLANT MOLEC BIOL SOC HO UNIV DELAWARE DE BIOCONTROL; ENTEROBACTER CLOACAE; COLONIZATION; SPERMOSPHERE ID PSEUDOMONAS-FLUORESCENS STRAIN; FIXATION ACETYLENE-REDUCTION; PREEMERGENCE DAMPING-OFF; GRAM-NEGATIVE BACTERIA; BIOLOGICAL-CONTROL; CHROMOSOMAL INSERTION; SPERMOSPHERE MODEL; PYTHIUM-ULTIMUM; FUSARIUM-WILT; RHIZOSPHERE AB The importance of colonization of subterranean portions of crop plants by bacterial biocontrol agents needs to be defined and investigated. This paper describes the ongoing studies in our laboratories concerning the importance of colonization by Enterobacter cloacae to its suppression of the plant pathogen Pythium ultimum on cucumber. The use of E. cloacae mutants, which are reduced in cucumber spermosphere colonization, and an environmental containment strategy for this biocontrol agent is also discussed. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. CORNELL UNIV,DEPT PLANT PATHOL,ITHACA,NY 14853. UNIV DELAWARE,DEPT PLANT & SOIL SCI,NEWARK,DE 19717. RP ROBERTS, DP (reprint author), USDA ARS,BIOCONTROL PLANT DIS LAB,BELTSVILLE,MD 20705, USA. NR 30 TC 14 Z9 15 U1 0 U2 0 PU ELSEVIER SCI IRELAND LTD PI CLARE PA CUSTOMER RELATIONS MANAGER, BAY 15, SHANNON INDUSTRIAL ESTATE CO, CLARE, IRELAND SN 0168-9452 J9 PLANT SCI JI Plant Sci. PY 1994 VL 101 IS 1 BP 83 EP 89 DI 10.1016/0168-9452(94)90167-8 PG 7 WC Biochemistry & Molecular Biology; Plant Sciences SC Biochemistry & Molecular Biology; Plant Sciences GA PL484 UT WOS:A1994PL48400010 ER PT B AU GUTIERREZ, RC AF GUTIERREZ, RC BE Goldstein, DH Chenault, DB TI POLARIZATION ALIGNMENT OF POLARIZATION MAINTAINING FIBER USING COHERENT DETECTION SO POLARIZATION ANALYSIS AND MEASUREMENT II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Symposium on Polarization Analysis and Measurement II CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS DE POLARIZATION ALIGNMENT; POLARIZATION MAINTAINING (PM) FIBER; FUSION SPLICING; AMPLITUDE MODULATION; INTERFERENCE 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 0-8194-1589-8 J9 P SOC PHOTO-OPT INS PY 1994 VL 2265 BP 15 EP 28 DI 10.1117/12.186672 PG 14 WC Optics SC Optics GA BB96Z UT WOS:A1994BB96Z00003 ER PT B AU WEST, EA SMITH, MH AF WEST, EA SMITH, MH BE Goldstein, DH Chenault, DB TI POLARIZATION ERRORS ASSOCIATED WITH BIREFRINGENT WAVEPLATES SO POLARIZATION ANALYSIS AND MEASUREMENT II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Symposium on Polarization Analysis and Measurement II CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. 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 0-8194-1589-8 J9 P SOC PHOTO-OPT INS PY 1994 VL 2265 BP 260 EP 271 DI 10.1117/12.186698 PG 12 WC Optics SC Optics GA BB96Z UT WOS:A1994BB96Z00028 ER PT B AU WEST, EA SMITH, MH AF WEST, EA SMITH, MH BE Goldstein, DH Chenault, DB TI POLARIZATION CHARACTERISTICS OF THE MSFC EXPERIMENTAL VECTOR MAGNETOGRAPH SO POLARIZATION ANALYSIS AND MEASUREMENT II SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Symposium on Polarization Analysis and Measurement II CY JUL 25-27, 1994 CL SAN DIEGO, CA SP SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. 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 0-8194-1589-8 J9 P SOC PHOTO-OPT INS PY 1994 VL 2265 BP 272 EP 283 DI 10.1117/12.186699 PG 12 WC Optics SC Optics GA BB96Z UT WOS:A1994BB96Z00029 ER PT J AU SMITH, JG CONNELL, JW HERGENROTHER, PM AF SMITH, JG CONNELL, JW HERGENROTHER, PM TI OXYGEN PLASMA RESISTANT PHENYLPHOSPHINE OXIDE-CONTAINING POLY(ARYLENE ETHER)S SO POLYMER LA English DT Article DE POLY(ARYLENE ETHER)S; OXYGEN PLASMA RESISTANCE; LIMITING OXYGEN INDEX ID SPACE STATION; FILMS AB Phenylphosphine oxide-containing poly(arylene ether)s were prepared by the aromatic nucleophilic displacement reaction of a new phenylphosphine oxide-containing bisphenol with activated aromatic difluorides in the presence of anhydrous potassium carbonate in N,N'-dimethylacetamide at 155-degrees-C or in sulfolane at 200-degrees-C. The phenylphosphine oxide-containing bisphenol was prepared in two steps from bis(4-fluorophenyl)phenylphosphine oxide and 4-methoxyphenol. The polymers exhibited inherent viscosities of 0.57-0.75 dl g-1 and glass transition temperatures of 177-213-degrees-C. Thermogravimetric analyses showed 5% weight loss in the ranges of 447-471-degrees-C in air and 480-512-degrees-C in nitrogen. Unoriented thin films exhibited tensile strengths, moduli and break elongations at 23-degrees-C of 8.1-11.1 ksi, 275-370 ksi and 42-109%, respectively. Limiting oxygen indices of 0.30-0.33 were calculated based on polymer char residues at 850-degrees-C in nitrogen. Phenylphosphine oxide-containing poly(arylene ether)s exhibited excellent resistance to an oxygen plasma environment with weight loss rates of one to two orders of magnitude lower than that of Kapton(R) HN. The chemistry, and physical and mechanical properties of these polymers, as well as their oxygen plasma resistance, are discussed. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 40 TC 38 Z9 38 U1 1 U2 6 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1994 VL 35 IS 13 BP 2834 EP 2839 DI 10.1016/0032-3861(94)90314-X PG 6 WC Polymer Science SC Polymer Science GA NU936 UT WOS:A1994NU93600021 ER PT J AU HERGENROTHER, PM SMITH, JG AF HERGENROTHER, PM SMITH, JG TI CHEMISTRY AND PROPERTIES OF IMIDE OLIGOMERS END-CAPPED WITH PHENYLETHYNYLPHTHALIC ANHYDRIDES SO POLYMER LA English DT Article DE POLYIMIDE; OLIGOMERS; END-CAPPING ID POLYIMIDE OLIGOMERS AB A series of phenylethynyl-terminated imide oligomers were prepared by the reaction of aromatic dianhydride(s) with a stoichiometric excess of aromatic diamine(s) at calculated number average molecular weights of 1500-9000 g mol-1 and end-capped with phenylethynylphthalic anhydrides in N-methyl-2-pyrrolidinone. Unoriented thin films cured in flowing air to 350-degrees-C exhibited tensile strengths and moduli of 105.5-139.3 MPa and 2.8-3.2 GPa at 23-degrees-C, respectively, with good retention of properties at 177-degrees-C. Stressed film specimens exhibited excellent resistance to a variety of solvents after a 2 week exposure period at ambient temperature. One phenylethynyl-terminated imide oligomer was selected for more extensive evaluation and gave high fracture toughness, adhesive and composite properties. The chemistry, physical and mechanical properties of these materials are discussed. RP HERGENROTHER, PM (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 16 TC 145 Z9 155 U1 2 U2 18 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1994 VL 35 IS 22 BP 4857 EP 4864 DI 10.1016/0032-3861(94)90744-7 PG 8 WC Polymer Science SC Polymer Science GA PP671 UT WOS:A1994PP67100024 ER PT J AU HOU, TH SIOCHI, EJ JOHNSTON, NJ STCLAIR, TL AF HOU, TH SIOCHI, EJ JOHNSTON, NJ STCLAIR, TL TI IM7/LARC(TM)-ITPI POLYIMIDE COMPOSITES SO POLYMER LA English DT Article; Proceedings Paper CT 17th Biennial Symposium of the American-Chemical-Society on Advances in Polymerization and High Performance Polymeric Materials CY NOV 22-25, 1992 CL PALM SPRINGS, CA SP AMER CHEM SOC, DIV POLYMER CHEM DE POLYIMIDE; COMPOSITE; MECHANICAL PROPERTIES ID THERMOPLASTIC POLYIMIDE AB LARC(TM)-ITPI, an isomeric variation of the better known LARC(TM)-TPI and based on 4,4'-isophthaloyldiphthalic anhydride and 1,3-phenylenediamine, was evaluated as a matrix for high-performance composites. Five 30% poly(amide acid) solutions in N-methyl pyrrolidone, with stoichiometric offsets of 2.0, 3.0, 4.0, 4.75 and 5.5% in favour of the diamine and end-capped with phthalic anhydride, were synthesized and their molecular weights and molecular weight distributions determined. Importantly, high concentrations of low molecular weight species were found in all the offset compositions. Solvent/volatile depletion rates were carefully determined on thermally imidized films of the five compositions and were an important part of the composite consolidation studies. All films failed a solvent resistance test which involved immersion in acetone, methyl ethyl ketone, toluene, dimethylacetamide and chloroform for 1 min followed by a fingernail crease. A minor modification of the polymer backbone improved solvent resistance measurably. Unidirectional IM7 prepreg was made from each of the five resin solutions by standard drum-winding procedures. A workable composite consolidation cycle was developed for the 3% offset solution by conducting a parametric study involving residual solvent content, melt viscosity and composite C-scan information. The basic strategy was to B-stage the prepreg to a temperature where 98% of the volatiles were depleted while, at the same time, adequate molten resin fluidity (via incomplete imidization and residual solvent content) was retained, then apply pressure and increase temperature to complete the consolidation. This moulding cycle was then applied successfully to the remaining compositions and composites fabricated. From the processing information and composite mechanical properties, including short-beam shear strength, flexural strength and flexural modulus at room temperature, 93, 150 and 177 degrees C, the 4.75% stoichiometrically offset end-capped polymer was chosen as the optimal matrix. Composite engineering properties for this selected composition were also obtained, including longitudinal tension, transverse flexural, longitudinal compression, interlaminar shear, short-block compression, compression strength after impact and open-hole compression (OHC). Notably, 80% of the room temperature OHC strength was retained at 177 degrees C, indicating that the LARC(TM)-ITPI is an excellent high-temperature matrix material for selected future aerospace applications where solvent resistance is not a key requirement. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. LOCKHEED ENGN & SCI CO,HAMPTON,VA 23666. NR 35 TC 17 Z9 17 U1 0 U2 1 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0032-3861 J9 POLYMER JI Polymer PY 1994 VL 35 IS 23 BP 4956 EP 4969 DI 10.1016/0032-3861(94)90650-5 PG 14 WC Polymer Science SC Polymer Science GA PT099 UT WOS:A1994PT09900005 ER PT J AU TRINH, DV LINTON, RC VAUGHN, JA FINCKENOR, MM VANDEMARK, MR AF TRINH, DV LINTON, RC VAUGHN, JA FINCKENOR, MM VANDEMARK, MR TI SOLAR SIMULATION PHOTODEGRADATION OF POLYSTYRENE - PHTHALOCYANINE PIGMENTS AS INHIBITOR OF THE PHOTODEGRADATION PROCESS SO POLYMER DEGRADATION AND STABILITY LA English DT Article ID PHOTOOXIDATION AB Polystyrene and pigmented polystyrene films with a loading of either 3% phthalo blue (blue), 3% of phthalo green (green) or 1.5% of 2,3,10,11,18,19,26,27-octakis(dodecyloxy)-phthalocyanine (DD green) were exposed to simulated solar radiation ranging from 250 to 1100 nm inside a vacuum chamber at a pressure of approximately 1.0 x 10(-6) torr. Changes in the fluroescence spectra of the photodegraded samples were examined. Gel permeation chromatography (GPC) analysis indicated that all the photo-irradiated samples had a higher molecular weight than their unexposed counterparts. The percentage increase in molecular weight of the polymer varied with the type of pigment. In general, the increase in the weight average molecular weight of phthalocyanine pigmented polystyrene was less than the unpigmented counterpart, while phthalocyanine pigments produced more cross-linked insoluble material. C1 UNIV MISSOURI,DEPT CHEM,INST UMR COATINGS,ROLLA,MO 65401. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 14 TC 6 Z9 6 U1 1 U2 3 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB SN 0141-3910 J9 POLYM DEGRAD STABIL JI Polym. Degrad. Stabil. PY 1994 VL 46 IS 3 BP 325 EP 331 DI 10.1016/0141-3910(94)90149-X PG 7 WC Polymer Science SC Polymer Science GA QE999 UT WOS:A1994QE99900006 ER PT S AU EFTEKHARI, A STCLAIR, AK STOAKLEY, DM SPRINKLE, DR SINGH, JJ AF EFTEKHARI, A STCLAIR, AK STOAKLEY, DM SPRINKLE, DR SINGH, JJ BE Thompson, LF Willson, CG Tagawa, S TI MICROSTRUCTURAL CHARACTERIZATION OF THIN POLYIMIDE FILMS BY POSITRON LIFETIME SPECTROSCOPY SO POLYMERS FOR MICROELECTRONICS: RESISTS AND DIELECTRICS SE ACS SYMPOSIUM SERIES LA English DT Article; Proceedings Paper CT Symposium on Polymers for Microelectronics: Resists and Dielectrics, at the 203rd National Meeting of the American-Chemical-Society CY APR 05-10, 1992 CL SAN FRANCISCO, CA SP AMER CHEM SOC AB Positron lifetimes have been measured in a series of thin aromatic polyimide films. No evidence of positronium formation was observed in any of the films investigated. All test films exhibited only two positron lifetime components, the longer component corresponding to the positrons annihilating at shallow traps. Based on these trapped positron lifetimes, free volume fractions have been calculated for all the films tested. A free volume model has been developed to calculate the dielectric constants of thin polyimide films. The experimental and the calculated values for the dielectric constants of the films tested are in reasonably good agreement. It has been further noted that the presence of bulky CF3 groups and meta linkages in the polyimide structure results in higher free volume fraction and, consequently, lower dielectric constant values for the films studied. C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. RP EFTEKHARI, A (reprint author), HAMPTON UNIV,DEPT PHYS,HAMPTON,VA 23668, USA. NR 11 TC 5 Z9 5 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 SN 0097-6156 BN 0-8412-2721-7 J9 ACS SYM SER PY 1994 VL 537 BP 535 EP 545 PG 11 WC Chemistry, Multidisciplinary; Chemistry, Physical; Engineering, Electrical & Electronic; Polymer Science SC Chemistry; Engineering; Polymer Science GA BZ96S UT WOS:A1994BZ96S00038 ER PT B AU KESSLER, DJ AF KESSLER, DJ BE Simpson, JA TI THE CURRENT AND FUTURE ENVIRONMENT - AN OVERALL ASSESSMENT SO PRESERVATION OF NEAR-EARTH SPACE FOR FUTURE GENERATIONS LA English DT Proceedings Paper CT Interdisciplinary Symposium on Preservation of Near-Earth Space for Future Generations, in honor of the 100th Anniversary of the University of Chicago CY JUN 24-26, 1992 CL CHICAGO, IL C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-44508-6 PY 1994 BP 19 EP 36 DI 10.1017/CBO9780511564925.004 PG 18 WC Engineering, Aerospace SC Engineering GA BB67A UT WOS:A1994BB67A00003 ER PT B AU JACOBS, DV AF JACOBS, DV BE Simpson, JA TI UNITED-STATES INTERNATIONAL AND INTERAGENCY COOPERATION IN ORBITAL DEBRIS SO PRESERVATION OF NEAR-EARTH SPACE FOR FUTURE GENERATIONS LA English DT Proceedings Paper CT Interdisciplinary Symposium on Preservation of Near-Earth Space for Future Generations, in honor of the 100th Anniversary of the University of Chicago CY JUN 24-26, 1992 CL CHICAGO, IL C1 NASA HEADQUARTERS,DIV INT RELAT,WASHINGTON,DC. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-44508-6 PY 1994 BP 103 EP 107 DI 10.1017/CBO9780511564925.011 PG 5 WC Engineering, Aerospace SC Engineering GA BB67A UT WOS:A1994BB67A00010 ER PT B AU LOFTUS, JP ANZMEADOR, P REYNOLDS, R AF LOFTUS, JP ANZMEADOR, P REYNOLDS, R BE Simpson, JA TI ORBITAL DEBRIS MINIMIZATION AND MITIGATION TECHNIQUES SO PRESERVATION OF NEAR-EARTH SPACE FOR FUTURE GENERATIONS LA English DT Proceedings Paper CT Interdisciplinary Symposium on Preservation of Near-Earth Space for Future Generations, in honor of the 100th Anniversary of the University of Chicago CY JUN 24-26, 1992 CL CHICAGO, IL C1 LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE, CAMBS, ENGLAND CB2 1RP BN 0-521-44508-6 PY 1994 BP 132 EP 144 DI 10.1017/CBO9780511564925.018 PG 13 WC Engineering, Aerospace SC Engineering GA BB67A UT WOS:A1994BB67A00017 ER PT J AU HAINES, B LICHTEN, S MUELLERSCHOEN, R SPITZMESSER, D SRINIVASAN, J STEPHENS, S YOUNG, L SWEENEY, D AF HAINES, B LICHTEN, S MUELLERSCHOEN, R SPITZMESSER, D SRINIVASAN, J STEPHENS, S YOUNG, L SWEENEY, D GP INST NAVIGAT TI A NOVEL USE OF GPS FOR DETERMINING THE ORBIT OF A GEOSYNCHRONOUS SATELLITE - THE TDRS GPS TRACKING DEMONSTRATION SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 191 EP 202 PG 12 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00021 ER PT J AU DONNELLAN, A HURST, K CARTER, C ROMANOWSKI, P AF DONNELLAN, A HURST, K CARTER, C ROMANOWSKI, P GP INST NAVIGAT TI EARTHQUAKE RESEARCH YIELDS MANHOUR-EFFICIENT POINT WITH MILLIMETER PRECISION SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 375 EP 381 PG 7 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00042 ER PT J AU GIPSON, J RYAN, J HIMWICH, E CLARK, T AF GIPSON, J RYAN, J HIMWICH, E CLARK, T GP INST NAVIGAT TI GPS RESULTS ARE CONSISTENT WITH VLBI SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 383 EP 390 PG 8 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00043 ER PT J AU PARK, Y MONTEZ, M AF PARK, Y MONTEZ, M GP INST NAVIGAT TI A PRECISION BEST ESTIMATED TRAJECTORY RECONSTRUCTION FOR GPS USERS SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1201 EP 1209 PG 9 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00131 ER PT J AU BAUER, F LIGHTSEY, E MCCULLOUGH, J ODONNELL, J SCHNURR, R CLASS, B JACKSON, L LEITER, S AF BAUER, F LIGHTSEY, E MCCULLOUGH, J ODONNELL, J SCHNURR, R CLASS, B JACKSON, L LEITER, S GP INST NAVIGAT TI PRE-FLIGHT TESTING OF THE SPARTAN GADACS EXPERIMENT SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 1 Z9 1 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1233 EP 1241 PG 9 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00134 ER PT B AU WILSON, B MANNUCCI, A AF WILSON, B MANNUCCI, A GP INST NAVIGAT TI EXTRACTING IONOSPHERIC MEASUREMENTS FROM GPS IN THE PRESENCE OF ANTI-SPOOFING SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 JET PROP LAB,GPS NETWORK OPERAT GRP,PASADENA,CA 91109. NR 0 TC 13 Z9 13 U1 0 U2 1 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1599 EP 1608 PG 10 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00175 ER PT B AU ZUMBERGE, J NEILAN, R BEUTLER, G GURTNER, W AF ZUMBERGE, J NEILAN, R BEUTLER, G GURTNER, W GP INST NAVIGAT TI THE INTERNATIONAL GPS SERVICE FOR GEODYNAMICS - BENEFITS TO USERS SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 2 Z9 2 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1663 EP 1666 PG 4 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00182 ER PT B AU LIGHTSEY, EG COHEN, C PARKINSON, B AF LIGHTSEY, EG COHEN, C PARKINSON, B GP INST NAVIGAT TI DEVELOPMENT OF A GPS RECEIVER FOR RELIABLE REAL-TIME ATTITUDE DETERMINATION IN SPACE SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 3 Z9 3 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1677 EP 1684 PG 8 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00184 ER PT J AU CLARK, T VARNEY, D BAUER, F AF CLARK, T VARNEY, D BAUER, F GP INST NAVIGAT TI A LOW COST SPACECRAFT RECEIVER FOR ORBIT AND ATTITUDE DETERMINATION SO PROCEEDINGS OF ION GPS-94: 7TH INTERNATIONAL TECHNICAL MEETING OF THE SATELLITE DIVISION OF THE INSTITUTE OF NAVIGATION, PTS 1 AND 2 LA English DT Proceedings Paper CT 7th International Technical Meeting of the Satellite-Division of the Institute-of-Navigation (ION GPS-94) CY SEP 20-23, 1994 CL SALT LAKE CITY, UT SP INST NAVIGAT, SATELLITE DIV C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 1711 EP 1718 PG 8 WC Engineering, Aerospace; Computer Science, Information Systems; Engineering, Marine; Engineering, Civil; Geography; Remote Sensing SC Engineering; Computer Science; Geography; Remote Sensing GA BC96F UT WOS:A1994BC96F00188 ER PT S AU ROM, H MEDIONI, G AF ROM, H MEDIONI, G GP INT ASSOC PATTERN RECOGNIT TI PART DECOMPOSITION AND DESCRIPTION OF 3D SHAPES SO PROCEEDINGS OF THE 12TH IAPR INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION - CONFERENCE A: COMPUTER VISION & IMAGE PROCESSING SE INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION LA English DT Proceedings Paper CT Conference A on Computer Vision and Image Processing, at the 12th IAPR International Conference on Pattern Recognition CY OCT 09-13, 1994 CL JERUSALEM, ISRAEL SP INT ASSOC PATTERN RECOGNIT, IEEE, COMP SOC, INFORMAT PROC ASSOC ISRAEL C1 JET PROP LAB,IMAGE ANAL SYST GRP,PASADENA,CA 91109. NR 0 TC 8 Z9 8 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 1051-4651 BN 0-8186-6265-4 J9 INT C PATT RECOG PY 1994 BP 629 EP 632 PG 4 WC Computer Science, Artificial Intelligence; Optics SC Computer Science; Optics GA BC05K UT WOS:A1994BC05K00131 ER PT S AU NETANYAHU, NS WEISS, I AF NETANYAHU, NS WEISS, I GP INT ASSOC PATTERN RECOGNIT TI ANALYTIC OUTLIER REMOVAL IN LINE FITTING SO PROCEEDINGS OF THE 12TH IAPR INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOL II - CONFERENCE B: PATTERN RECOGNITION AND NEURAL NETWORKS SE INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION LA English DT Proceedings Paper CT Conference B on Pattern Recognition and Neural Networks, at the 12th IAPR International Conference on Pattern Recognition CY OCT 09-13, 1994 CL JERUSALEM, ISRAEL SP INT ASSOC PATTERN RECOGNIT, IEEE, COMP SOC, INFORMAT PROC ASSOC ISRAEL DE LINE FITTING; OUTLIERS; NOISE REMOVAL; MIXTURE MODELS; METHOD OF MOMENTS C1 NASA,GODDARD SPACE FLIGHT CTR,DIV SPACE DATA & COMP,GREENBELT,MD 20771. NR 0 TC 2 Z9 2 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 1051-4651 BN 0-8186-6270-0 J9 INT C PATT RECOG PY 1994 BP 406 EP 408 PG 3 WC Computer Science, Artificial Intelligence SC Computer Science GA BC05L UT WOS:A1994BC05L00081 ER PT B AU WADA, BK KUO, CP AF WADA, BK KUO, CP GP SOC EXPTL MECH INC UNION COLL TI ACTIVE MEMBERS TO ESTABLISH ON-ORBIT MODAL DATA FOR MODAL ADJUSTMENTS SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,APPL MECH TECHNOL SECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 74 EP 80 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00012 ER PT B AU SMITH, KS AF SMITH, KS GP SOC EXPTL MECH INC UNION COLL TI EFFICIENT UPDATING OF MODEL PARAMETERS USING MODAL COORDINATES SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,STRUCT & DYNAM RES GRP,APPL MECH TECHNOL SECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 123 EP 126 PG 4 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00018 ER PT B AU SMITH, KS PENG, CY AF SMITH, KS PENG, CY GP SOC EXPTL MECH INC UNION COLL TI SIR-C MODAL SURVEY - A CASE-STUDY IN FREE-FREE TESTING SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,STRUCT & DYNAM RES GRP,APPL MECH TECHNOL SECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 176 EP 183 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00028 ER PT B AU HALPIN, DB GRYGIER, MS AF HALPIN, DB GRYGIER, MS GP SOC EXPTL MECH INC UNION COLL TI MODAL TESTING OF THE INTELSAT CAPTURE BAR - A CASE-HISTORY SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LYNDON B JOHNSON SPACE CTR,DIV STRUCT & MECH,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 191 EP 197 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00030 ER PT B AU LEVINEWEST, M KISSIL, A MILMAN, M AF LEVINEWEST, M KISSIL, A MILMAN, M GP SOC EXPTL MECH INC UNION COLL TI EVALUATION OF MODE SHAPE EXPANSION TECHNIQUES ON THE MICRO-PRECISION INTERFEROMETER TRUSS SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,DIV MECH ENGN & RES,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 212 EP 218 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00033 ER PT B AU CHARGIN, MK MIURA, H AF CHARGIN, MK MIURA, H GP SOC EXPTL MECH INC UNION COLL TI AN IMPLEMENTATION OF MODAL UPDATE BASED ON LARSSON FORMULATION SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 379 EP 389 PG 11 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00058 ER PT B AU PENG, CY SMITH, KS AF PENG, CY SMITH, KS GP SOC EXPTL MECH INC UNION COLL TI VERIFICATION OF CONSTRAINED SHUTTLE PAYLOADS USING FREE-FREE MODAL TEST DATA - MATHEMATICAL BASIS SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 JET PROP LAB,STRUCT & DYNAM RES GRP,APPL MECH TECHNOL SECT,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 553 EP 560 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00083 ER PT B AU HALPIN, DB AF HALPIN, DB GP SOC EXPTL MECH INC UNION COLL TI USING ELECTRODYNAMIC SHAKERS TO SIMULATE PULSED FIRINGS OF THE ORBITER REACTION CONTROL-SYSTEM SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,LYNDON B JOHNSON SPACE CTR,DIV STRUCT & MECH,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 641 EP 647 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00095 ER PT B AU FREUDINGER, LC FIELD, RV AF FREUDINGER, LC FIELD, RV GP SOC EXPTL MECH INC UNION COLL TI NULL SPACE POLE ESTIMATION WITH ERROR-BOUNDS SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,DRYDEN FLIGHT RES FACIL,EDWARDS AFB,CA 93523. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 947 EP 967 PG 21 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00140 ER PT B AU KEHOE, MW FREUDINGER, LC AF KEHOE, MW FREUDINGER, LC GP SOC EXPTL MECH INC UNION COLL TI AIRCRAFT GROUND VIBRATION TESTING AT THE NASA DRYDEN FLIGHT RESEARCH FACILITY - 1993 SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,DRYDEN FLIGHT RES FACIL,EDWARDS AFB,CA 93523. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 1237 EP 1250 PG 14 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00181 ER PT B AU TAILOR, D KIRKMAN, C HERSHFELD, D WOJNAR, S AF TAILOR, D KIRKMAN, C HERSHFELD, D WOJNAR, S GP SOC EXPTL MECH INC UNION COLL TI AN APPROACH TO REAL-WORLD NONLINEAR BEHAVIOR OF SPACE STRUCTURES SO PROCEEDINGS OF THE 12TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS 1 AND 2 SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT 12th International Modal Analysis Conference CY JAN 31-FEB 03, 1994 CL HONOLULU, HI SP SOC EXPTL MECH INC, UNION COLL, SOC PHOTO OPT INSTRUMENTAT ENGINEERS C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 BN 0-912053-44-5 J9 P SOC PHOTO-OPT INS PY 1994 VL 2251 BP 1705 EP 1712 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Civil; Engineering, Mechanical SC Computer Science; Engineering GA BA74L UT WOS:A1994BA74L00249 ER PT B AU HELLE, JH HOFFMAN, MS AF HELLE, JH HOFFMAN, MS GP UNIV ALASKA SEA GRANT COLL PROGRAM TI SIZE DECREASES IN ADULT CHUM SALMON SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP HELLE, JH (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 33 EP 35 PG 3 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00004 ER PT B AU JAENICKE, HW JAENICKE, MJ OLIVER, GT AF JAENICKE, HW JAENICKE, MJ OLIVER, GT GP UNIV ALASKA SEA GRANT COLL PROGRAM TI PREDICTING NORTHERN SOUTHEAST ALASKA PINK SALMON RETURNS BY EARLY MARINE SCALE GROWTH SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP JAENICKE, HW (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 3 Z9 3 U1 0 U2 0 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 97 EP 109 PG 13 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00012 ER PT B AU STURDEVANT, MV WERTHEIMER, AC LUM, JL AF STURDEVANT, MV WERTHEIMER, AC LUM, JL GP UNIV ALASKA SEA GRANT COLL PROGRAM TI DIET OF JUVENILE PINK AND CHUM SALMON IN OILED AND NON-OILED NEARSHORE HABITATS IN PRINCE-WILLIAM SOUND, 1989 AND 1990 SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP STURDEVANT, MV (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 177 EP 177 PG 1 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00023 ER PT B AU WERTHEIMER, AC CELEWYCZ, AG CARLS, MG STURDEVANT, MV AF WERTHEIMER, AC CELEWYCZ, AG CARLS, MG STURDEVANT, MV GP UNIV ALASKA SEA GRANT COLL PROGRAM TI THE IMPACT OF THE EXXON-VALDEZ OIL SPILL ON JUVENILE PINK AND CHUM SALMON AND THEIR PREY IN NEARSHORE MARINE HABITATS SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP WERTHEIMER, AC (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 0 Z9 0 U1 0 U2 3 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 179 EP 180 PG 2 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00024 ER PT B AU MORTENSEN, DG CARLS, MG AF MORTENSEN, DG CARLS, MG GP UNIV ALASKA SEA GRANT COLL PROGRAM TI EFFECTS OF CRUDE OIL INGESTION ON GROWTH AND MICROSTRUCTURE OF JUVENILE PINK SALMON (ONCORHYNCHUS-GORBUSCHA) OTOLITHS SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP MORTENSEN, DG (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 2 Z9 2 U1 0 U2 4 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 183 EP 183 PG 1 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00026 ER PT B AU JOHNSON, PA HEARD, WR SALO, EO AF JOHNSON, PA HEARD, WR SALO, EO GP UNIV ALASKA SEA GRANT COLL PROGRAM TI BIBLIOGRAPHIES OF PINK SALMON (ONCORHYNCHUS-GORBUSCHA) AND CHUM SALMON (O-KETA) LITERATURE SO PROCEEDINGS OF THE 16TH NORTHEAST PACIFIC PINK AND CHUM SALMON WORKSHOP SE ALASKA SEA GRANT REPORT LA English DT Proceedings Paper CT 16th Northeast Pacific Pink and Chum Salmon Workshop CY FEB 24-26, 1993 CL JUNEAU, AK SP UNIV ALASKA FAIRBANKS, ALASKA SEA GRANT COLL PROGRAM, UNIV ALASKA FAIRBANKS, DIV FISHERIES RP JOHNSON, PA (reprint author), NATL MARINE FISHERIES SERV,AUKE BAY FISHERIES LAB,11305 GLACIER HIGHWAY,JUNEAU,AK 99801, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ALASKA SEA GRANT COLL PROGRAM PI FAIRBANKS PA UNIV ALASKA FAIRBANKS, 138 IRVING 11, FAIRBANKS, AK 99775-5040 BN 1-56612-024-1 J9 ALASKA SEA PY 1994 IS 94-02 BP 185 EP 186 PG 2 WC Fisheries SC Fisheries GA BB86Q UT WOS:A1994BB86Q00027 ER PT B AU MARKLEY, FL BERMAN, N SHAKED, U AF MARKLEY, FL BERMAN, N SHAKED, U GP AMER AUTOMAT CONTROL COUNCIL TI DETERMINISTIC EKF-LIKE ESTIMATOR FOR SPACECRAFT ATTITUDE ESTIMATION SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 6 Z9 7 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1783-1 PY 1994 BP 247 EP 251 PG 5 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00055 ER PT B AU GAWRONSKI, W LIM, KB AF GAWRONSKI, W LIM, KB GP AMER AUTOMAT CONTROL COUNCIL TI BALANCED H-INFINITY AND H2 CONTROLLERS SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 2 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1783-1 PY 1994 BP 1116 EP 1122 PG 7 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00240 ER PT B AU CHIANG, RY AF CHIANG, RY GP AMER AUTOMAT CONTROL COUNCIL TI PARAMETRIC ROBUSTNESS ANALYSIS FOR CASSINI SPACECRAFT USING THE LMI APPROACH WITHOUT FREQUENCY SWEEP SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL 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 0-7803-1783-1 PY 1994 BP 1219 EP 1222 PG 4 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00266 ER PT B AU BAYARD, DS SCHEID, RE CHIANG, RY AHMED, A METTLER, E AF BAYARD, DS SCHEID, RE CHIANG, RY AHMED, A METTLER, E GP AMER AUTOMAT CONTROL COUNCIL TI AUTOMATED MODELING AND CONTROL SYNTHESIS USING THE MACSYN TOOLBOX SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL 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 0-7803-1783-1 PY 1994 BP 1655 EP 1659 PG 5 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00364 ER PT B AU HADAEGH, FY CHIANG, RY LIN, CF POLITOPOULOS, AS AF HADAEGH, FY CHIANG, RY LIN, CF POLITOPOULOS, AS GP AMER AUTOMAT CONTROL COUNCIL TI STRUCTURAL MODELING AND IDENTIFICATION USING NEURAL NETWORKS SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL 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 0-7803-1783-1 PY 1994 BP 1707 EP 1711 PG 5 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00375 ER PT B AU WHITE, AL AF WHITE, AL GP AMER AUTOMAT CONTROL COUNCIL TI A MATRIX NORM CONDITION FOR ASYMPTOTIC STABILITY IN THE PRESENCE OF MASSIVE TRANSIENT FAILURES SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL C1 NASA,HAMPTON,VA 23665. 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 0-7803-1783-1 PY 1994 BP 1766 EP 1770 PG 5 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00388 ER PT B AU BOWE, DK HOMAIFAR, A SONG, YD AF BOWE, DK HOMAIFAR, A SONG, YD GP AMER AUTOMAT CONTROL COUNCIL TI SPACECRAFT SPIN AXIS ATTITUDE DETERMINATION VIA GENETIC ALGORITHM SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL C1 N CAROLINA AGR & TECH STATE UNIV,NASA,CTR RES EXCELLENCE,DEPT ELECT ENGN,CONTROLS & GUIDANCE GRP,GREENSBORO,NC 27411. 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 0-7803-1783-1 PY 1994 BP 2877 EP 2881 PG 5 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00623 ER PT B AU LIM, KB COX, DE AF LIM, KB COX, DE GP AMER AUTOMAT CONTROL COUNCIL TI EXPERIMENTAL ROBUST-CONTROL STUDIES ON AN UNSTABLE MAGNETIC SUSPENSION SYSTEM SO PROCEEDINGS OF THE 1994 AMERICAN CONTROL CONFERENCE, VOLS 1-3 LA English DT Proceedings Paper CT 1994 American Control Conference CY JUN 29-JUL 01, 1994 CL BALTIMORE, MD SP AMER AUTOMAT CONTROL COUNCIL, INT FEDERAT AUTOMAT CONTROL C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. 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 0-7803-1783-1 PY 1994 BP 3198 EP 3203 PG 6 WC Automation & Control Systems; Engineering, Multidisciplinary SC Automation & Control Systems; Engineering GA BB17U UT WOS:A1994BB17U00691 ER PT S AU DICK, GJ SANTIAGO, DG WANG, RT AF DICK, GJ SANTIAGO, DG WANG, RT GP IEEE TI TEMPERATURE COMPENSATED SAPPHIRE RESONATOR FOR ULTRA-STABLE OSCILLATOR CAPABILITY AT TEMPERATURES ABOVE 77-KELVIN SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 10 Z9 10 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 421 EP 432 DI 10.1109/FREQ.1994.398302 PG 12 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00060 ER PT S AU SANTIAGO, DG WANG, RT DICK, GJ OSEGUEDA, RA PIERLUISSI, JH GIL, LM AF SANTIAGO, DG WANG, RT DICK, GJ OSEGUEDA, RA PIERLUISSI, JH GIL, LM GP IEEE TI EXPERIMENTAL TEST AND APPLICATION OF A 2-D FINITE ELEMENT CALCULATION FOR WHISPERING GALLERY SAPPHIRE RESONATORS SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 1 U2 2 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 SN 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 482 EP 485 DI 10.1109/FREQ.1994.398293 PG 4 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00069 ER PT S AU TJOELKER, RL PRESTAGE, JD DICK, GJ MALEKI, L AF TJOELKER, RL PRESTAGE, JD DICK, GJ MALEKI, L GP IEEE TI RECENT STABILITY COMPARISONS WITH THE JPL LINEAR TRAPPED ION FREQUENCY STANDARDS SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 JET PROP LAB,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 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 739 EP 743 DI 10.1109/FREQ.1994.398254 PG 5 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00109 ER PT S AU PRESTAGE, JD MALEKI, L AF PRESTAGE, JD MALEKI, L GP IEEE TI SPACE FLYABLE HG+ FREQUENCY STANDARDS SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 JET PROP LAB,PASADENA,CA 91109. 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 SN 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 747 EP 754 DI 10.1109/FREQ.1994.398252 PG 8 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00111 ER PT S AU PRESTAGE, JD TJOELKER, RL DICK, GJ MALEKI, L AF PRESTAGE, JD TJOELKER, RL DICK, GJ MALEKI, L GP IEEE TI PROGRESS REPORT ON THE IMPROVED LINEAR ION TRAP PHYSICS PACKAGE SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 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 SN 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 755 EP 760 DI 10.1109/FREQ.1994.398251 PG 6 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00112 ER PT S AU SEIDEL, DJ MALEKI, L AF SEIDEL, DJ MALEKI, L GP IEEE TI PROGRESS TOWARD THE DEVELOPMENT OF A YTTERBIUM ION STANDARD SO PROCEEDINGS OF THE 1994 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (THE 48TH ANNUAL SYMPOSIUM) SE PROCEEDINGS OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM LA English DT Proceedings Paper CT 48th Annual IEEE International Frequency Control Symposium CY JUN 01-03, 1994 CL BOSTON, MA SP IEEE, ULTRASON FERROELECT & FREQUENCY CONTROL SOC C1 JET PROP LAB,PASADENA,CA 91109. 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 SN 1075-6787 BN 0-7803-1945-1 J9 P IEEE INT FREQ CONT PY 1994 BP 761 EP 768 DI 10.1109/FREQ.1994.398250 PG 8 WC Engineering, Electrical & Electronic; Physics, Condensed Matter SC Engineering; Physics GA BC17U UT WOS:A1994BC17U00113 ER PT B AU GARRISON, A TODD, NL LEE, M PARK, HS AF GARRISON, A TODD, NL LEE, M PARK, HS GP INT ELECTR PACKAGING SOC INC TI How much rework is too much?: The effects of solder joint rework on plated-through holes in multilayer printed wiring boards SO PROCEEDINGS OF THE 1994 INTERNATIONAL ELECTRONICS PACKAGING CONFERENCE LA English DT Proceedings Paper CT 1994 International Electronics Packaging Conference CY SEP 25-28, 1994 CL ATLANTA, GA SP Int Electr Packaging Soc Inc C1 GODDARD SPACE FLIGHT CTR,GREENBELT,MD. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INT ELECTRONICS PACKAGING SOC PI WHEATON PA 114 N HALE ST, WHEATON, IL 60187 BN 1-880433-16-8 PY 1994 BP 759 EP 768 PG 4 WC Engineering, Electrical & Electronic; Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BD75A UT WOS:A1994BD75A00072 ER PT J AU MELBOURNE, WG AF MELBOURNE, WG GP INST NAVIGAT TI SPACE APPLICATIONS SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 15 EP 15 PG 1 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00004 ER PT J AU LICHTEN, SM SWEENEY, D YOUNG, L HAINES, B SPITZMESSER, D SRINIVASAN, JM DUNN, CE NANDI, S AF LICHTEN, SM SWEENEY, D YOUNG, L HAINES, B SPITZMESSER, D SRINIVASAN, JM DUNN, CE NANDI, S GP INST NAVIGAT TI NEW GROUND AND SPACE-BASED GPS TRACKING TECHNIQUES FOR HIGH-EARTH AND DEEP SPACE ORBIT DETERMINATION APPLICATIONS SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 371 EP 380 PG 10 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00042 ER PT J AU GALDOS, JI UPADHYAY, TN KUMAR, A WU, B AF GALDOS, JI UPADHYAY, TN KUMAR, A WU, B GP INST NAVIGAT TI AUTONOMOUS INTEGRATED GPS CES SS NAVIGATION FOR HIGH-ALTITUDE ORBITS SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 381 EP 392 PG 12 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00043 ER PT B AU MUELLERSCHOEN, RJ BERTIGER, WI WU, SC MUNSON, TN ZUMBERGE, JF HAINES, B AF MUELLERSCHOEN, RJ BERTIGER, WI WU, SC MUNSON, TN ZUMBERGE, JF HAINES, B GP INST NAVIGAT TI ACCURACY OF GPS DETERMINED TOPEX POSEIDON ORBITS DURING ANTI-SPOOF PERIODS SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 4 Z9 4 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 607 EP 614 PG 8 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00065 ER PT J AU GOLD, K BERTIGER, W YUNCK, T WU, SE MUELLERSCHOEN, R BORN, G LARSON, K AF GOLD, K BERTIGER, W YUNCK, T WU, SE MUELLERSCHOEN, R BORN, G LARSON, K GP INST NAVIGAT TI A STUDY OF REAL TIME ORBIT DETERMINATION FOR THE EXTREME ULTRAVIOLET EXPLORER SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 3 Z9 3 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 625 EP 634 PG 10 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00067 ER PT J AU SAUNDERS, PE ROBEL, MC AERNI, ME FEUERSTEIN, DN LOWERY, SB COHEN, CE AF SAUNDERS, PE ROBEL, MC AERNI, ME FEUERSTEIN, DN LOWERY, SB COHEN, CE GP INST NAVIGAT TI THE 1ST FLIGHT TESTS OF GPS ON THE SPACE SHUTTLE SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 657 EP 669 PG 13 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00070 ER PT J AU ROWSON, SV COURTNEY, GR HUESCHEN, RM AF ROWSON, SV COURTNEY, GR HUESCHEN, RM GP INST NAVIGAT TI PERFORMANCE OF CATEGORY-IIIB AUTOMATIC LANDINGS USING C/A CODE TRACKING DIFFERENTIAL GPS SO PROCEEDINGS OF THE 1994 NATIONAL TECHNICAL MEETING - NAVIGATING THE EARTH AND BEYOND LA English DT Proceedings Paper CT 1994 National Technical Meeting on Navigating the Earth and Beyond CY JAN 24-26, 1994 CL SAN DIEGO, CA SP INST NAVIGAT C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 0 TC 1 Z9 1 U1 0 U2 0 PU INST NAVIGATION PI WASHINGTON PA 815 15TH ST NW, STE 832, WASHINGTON, DC 20005 PY 1994 BP 759 EP 767 PG 9 WC Engineering, Aerospace; Engineering, Multidisciplinary; Geography SC Engineering; Geography GA BC49J UT WOS:A1994BC49J00079 ER PT S AU SALEM, JA CHOI, SR AF SALEM, JA CHOI, SR GP SOC EXPTL MECH TI Test method effects in creep and crack growth testing of ceramics SO PROCEEDINGS OF THE 1994 SEM SPRING CONFERENCE ON EXPERIMENTAL MECHANICS SE PROCEEDINGS OF THE INTERNATIONAL CONGRESS ON EXPERIMENTAL MECHANICS LA English DT Proceedings Paper CT 1994 SEM Spring Conference on Experimental Mechanics CY JUN 06-08, 1994 CL BALTIMORE, MD SP Soc Exptl Mech C1 NASA,LEWIS RES CTR,STRUCT INTEGR BRANCH,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC EXPERIMENTAL MECHANICS INC PI BETHEL PA 7 SCHOOL ST, BETHEL, CT 06801 SN 1046-672X BN 0-912053-46-1 J9 P INT CONG EXPERIT M PY 1994 BP 790 EP 799 PG 10 WC Engineering, Civil; Materials Science, Multidisciplinary; Mechanics; Materials Science, Characterization & Testing; Materials Science, Composites; Optics; Polymer Science SC Engineering; Materials Science; Mechanics; Optics; Polymer Science GA BD88E UT WOS:A1994BD88E00111 ER PT S AU STEINMAN, JS WIELAND, F AF STEINMAN, JS WIELAND, F BE Pace, DK Fayek, AM TI AN OVERVIEW OF THE DISTRIBUTION LIST ALGORITHM FOR PARALLEL PROXIMITY DETECTION SO PROCEEDINGS OF THE 1994 SUMMER COMPUTER SIMULATION CONFERENCE SE PROCEEDINGS OF THE SUMMER COMPUTER SIMULATION CONFERENCE LA English DT Proceedings Paper CT 1994 Summer Computer Simulation Conference (SCSC 94) CY JUL 18-20, 1994 CL SAN DIEGO, CA SP SOC COMP SIMULAT DE PROXIMITY DETECTION; PARALLEL SIMULATION; SPEEDES; BREATHING TIME BUCKETS; TIME WARP; OBJECT-ORIENTED SIMULATION; DIS C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SOC COMPUTER SIMULATION INT PI SAN DIEGO PA PO BOX 17900, SAN DIEGO, CA 92177 SN 0094-7474 BN 1-56555-029-3 J9 P SUMM COMP PY 1994 BP 413 EP 418 PG 6 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BC17Y UT WOS:A1994BC17Y00068 ER PT S AU BAYARD, DS AF BAYARD, DS BE Peshkin, M TI STABLE DIRECT ADAPTIVE PERIODIC CONTROL OF NONMINIMUM-PHASE SYSTEMS SO PROCEEDINGS OF THE 33RD IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 SE IEEE CONFERENCE ON DECISION AND CONTROL - PROCEEDINGS LA English DT Proceedings Paper CT 33rd IEEE Conference on Decision and Control CY DEC 14-16, 1994 CL LAKE BUENA VISTA, FL SP IEEE, CONTROL SYST SOC 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 SN 0191-2216 BN 0-7803-1968-0 J9 IEEE DECIS CONTR P PY 1994 BP 2203 EP 2204 PG 2 WC Automation & Control Systems; Engineering, Industrial; Operations Research & Management Science SC Automation & Control Systems; Engineering; Operations Research & Management Science GA BC17X UT WOS:A1994BC17X00479 ER PT S AU KYLE, AMJ BEALE, GO AF KYLE, AMJ BEALE, GO BE Peshkin, M TI PERFORMANCE AND THE GAP METRIC SO PROCEEDINGS OF THE 33RD IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 SE IEEE CONFERENCE ON DECISION AND CONTROL - PROCEEDINGS LA English DT Proceedings Paper CT 33rd IEEE Conference on Decision and Control CY DEC 14-16, 1994 CL LAKE BUENA VISTA, FL SP IEEE, CONTROL SYST SOC DE GAP METRIC; CONTROL THEORY; LINEAR SYSTEMS C1 NASA,GODDARD SPACE FLIGHT CTR,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 SN 0191-2216 BN 0-7803-1968-0 J9 IEEE DECIS CONTR P PY 1994 BP 2656 EP 2658 PG 3 WC Automation & Control Systems; Engineering, Industrial; Operations Research & Management Science SC Automation & Control Systems; Engineering; Operations Research & Management Science GA BC17X UT WOS:A1994BC17X00572 ER PT S AU LEE, AY MAN, GK AF LEE, AY MAN, GK BE Peshkin, M TI A KRYLOV MODEL REDUCTION METHODOLOGY FOR ARTICULATED, MULTI-FLEXIBLE BODY STRUCTURES SO PROCEEDINGS OF THE 33RD IEEE CONFERENCE ON DECISION AND CONTROL, VOLS 1-4 SE IEEE CONFERENCE ON DECISION AND CONTROL - PROCEEDINGS LA English DT Proceedings Paper CT 33rd IEEE Conference on Decision and Control CY DEC 14-16, 1994 CL LAKE BUENA VISTA, FL SP IEEE, CONTROL SYST SOC 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 SN 0191-2216 BN 0-7803-1968-0 J9 IEEE DECIS CONTR P PY 1994 BP 2898 EP 2903 PG 6 WC Automation & Control Systems; Engineering, Industrial; Operations Research & Management Science SC Automation & Control Systems; Engineering; Operations Research & Management Science GA BC17X UT WOS:A1994BC17X00622 ER PT B AU KLIMAS, A AF KLIMAS, A BE Brown, JD Chu, MT Ellison, DC Plemmons, RJ TI VLASOV SIMULATION WITH FILAMENTATION REMOVED SO PROCEEDINGS OF THE CORNELIUS LANCZOS INTERNATIONAL CENTENARY CONFERENCE SE SIAM PROCEEDINGS SERIES LA English DT Proceedings Paper CT Cornelius Lanczos 1993 International Centenary Conference CY DEC 12-17, 1993 CL RALEIGH, NC C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SIAM PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 BN 0-89871-339-0 J9 SIAM PROC S PY 1994 BP 458 EP 460 PG 3 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA BB63T UT WOS:A1994BB63T00078 ER PT J AU VANDEMARK, DC KRABILL, WB WALSH, EJ HOGE, FE CLEM, TD AF VANDEMARK, DC KRABILL, WB WALSH, EJ HOGE, FE CLEM, TD GP ENVIRONM RES INST MICHIGAN TI APPLICATION OF RADAR AND LASER SYSTEMS TO OCEAN AND ICE REMOTE SENSING SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL I LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 NASA,GODDARD SPACE FLIGHT CTR,OBSERVAT SCI BRANCH,HYDROSPHER PROC LAB,WALLOPS ISL,VA 23337. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 173 EP 183 PG 11 WC Remote Sensing SC Remote Sensing GA BC38X UT WOS:A1994BC38X00018 ER PT J AU HUNING, JR CAMERON, AO AF HUNING, JR CAMERON, AO GP ENVIRONM RES INST MICHIGAN TI THE NASA AIRBORNE SCIENCE PROGRAM IN SUPPORT OF MISSION TO PLANET EARTH SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL I LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 NASA HEADQUARTERS,AIRBORNE SCI OFF,WASHINGTON,DC. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 448 EP 458 PG 11 WC Remote Sensing SC Remote Sensing GA BC38X UT WOS:A1994BC38X00044 ER PT J AU HALL, GW KNUTSON, MA PETERSEN, EV AF HALL, GW KNUTSON, MA PETERSEN, EV GP ENVIRONM RES INST MICHIGAN TI CAPABILITIES OF NASA-AMES-RESEARCH-CENTERS AIRBORNE SCIENCE AIRCRAFT SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL I LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 471 EP 481 PG 11 WC Remote Sensing SC Remote Sensing GA BC38X UT WOS:A1994BC38X00048 ER PT J AU GUILLORY, AR BLAKESLEE, RJ HOOD, RE JEDLOVEC, GJ MACH, DM ROTHERMEL, J SPENCER, RW AF GUILLORY, AR BLAKESLEE, RJ HOOD, RE JEDLOVEC, GJ MACH, DM ROTHERMEL, J SPENCER, RW GP ENVIRONM RES INST MICHIGAN TI REMOTE SENSING INSTRUMENTATION FOR EARTH SYSTEM SCIENCE AT NASA MARSHALL-SPACE-FLIGHT-CENTER SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL I LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,OBSERVING SYST BRANCH,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 493 EP 509 PG 17 WC Remote Sensing SC Remote Sensing GA BC38X UT WOS:A1994BC38X00050 ER PT J AU MYERS, J ARVESEN, J AF MYERS, J ARVESEN, J GP ENVIRONM RES INST MICHIGAN TI SENSOR SYSTEMS OF THE NASA AIRBORNE SCIENCE PROGRAM SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL I LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 ATAC INC,AMES RES CTR,MOFFETT FIELD,CA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 523 EP 528 PG 6 WC Remote Sensing SC Remote Sensing GA BC38X UT WOS:A1994BC38X00052 ER PT J AU AMBROSIA, VG BRASS, JA ALLEN, JB HILDUM, EA HIGGINS, RG AF AMBROSIA, VG BRASS, JA ALLEN, JB HILDUM, EA HIGGINS, RG GP ENVIRONM RES INST MICHIGAN TI AIRDAS, DEVELOPMENT OF A UNIQUE 4-CHANNEL SCANNER FOR NATURAL DISASTER ASSESSMENT SO PROCEEDINGS OF THE FIRST INTERNATIONAL AIRBORNE REMOTE SENSING CONFERENCE AND EXHIBITION: APPLICATIONS, TECHNOLOGY, AND SCIENCE, VOL II LA English DT Proceedings Paper CT 1st International Airborne Remote Sensing Conference and Exhibition - Applications, Technology, and Science CY SEP 12-15, 1994 CL STRASBOURG, FRANCE SP GEN COUNCIL LOWER RHINE, FRANCE, ENVIRONM RES INST MICHIGAN, GER INTRADAN , DENMARK, GRP SCI TELEDETECT SPATIALE, FRANCE, LOUIS PASTEUR UNIV, FRANCE, MARINE SPILL RESPONSE CORP, US, NASA, US, REG COUNCIL ALSACE, FRANCE, STRASBOURG INT AIRPORT, FRANCE, VILLE STRASBOURG, FRANCE, CNR, NOAA, NATL SCI FDN, US C1 NASA,JOHNSON CONTROLS WORLD SERV,MOFFETT FIELD,CA 94035. NR 0 TC 1 Z9 1 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP 129 EP 141 PG 13 WC Remote Sensing SC Remote Sensing GA BC38Y UT WOS:A1994BC38Y00013 ER PT S AU SEGAL, LD AF SEGAL, LD GP HUMAN FACTORS & ERGONOM SOC TI ACTIONS SPEAK LOUDER THAN WORDS - HOW PILOTS USE NONVERBAL INFORMATION FOR CREW COMMUNICATIONS SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,AMES RES CTR,WESTERN AEROSPACE LABS INC,MOFFETT FIELD,CA 94035. NR 0 TC 6 Z9 6 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 21 EP 25 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00005 ER PT J AU OLSEN, ECB EBERHARDT, JW ANDRE, AD BALL, K HUNT, L HARWOOD, K CORN, A AF OLSEN, ECB EBERHARDT, JW ANDRE, AD BALL, K HUNT, L HARWOOD, K CORN, A GP HUMAN FACTORS & ERGONOM SOC TI ASSESSING THE OLDER DRIVER - AN INTERDISCIPLINARY APPROACH SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 152 EP 154 PG 3 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00032 ER PT J AU HALE, JP DITTMAR, ML AF HALE, JP DITTMAR, ML GP HUMAN FACTORS & ERGONOM SOC TI VIRTUAL-REALITY AS A HUMAN-FACTORS DESIGN ANALYSIS TOOL FOR ARCHITECTURAL SPACES CONTROL ROOMS TO SPACE STATIONS .1. OBJECTIVE MEASURES SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,CREW SYST ENGN BRANCH,HUNTSVILLE,AL 35812. NR 0 TC 2 Z9 2 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 275 EP 279 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00059 ER PT J AU RAJULU, SL KLUTE, GK WILMINGTON, RP AF RAJULU, SL KLUTE, GK WILMINGTON, RP GP HUMAN FACTORS & ERGONOM SOC TI EVALUATION OF CREW CAPABILITIES TO HANDLE AND STABILIZE HEAVY MASSES IN MICROGRAVITY SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,DIV FLIGHT CREW SUPPORT,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 583 EP 587 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00125 ER PT J AU WILMINGTON, RP POLINER, J KLUTE, GK AF WILMINGTON, RP POLINER, J KLUTE, GK GP HUMAN FACTORS & ERGONOM SOC TI INFLUENCE OF A PITCH ADJUSTABLE FOOT RESTRAINT ON OPERATOR INDUCED LOADS IN ZERO-GRAVITY SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 LOCKHEED ENG & SCI CO,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 588 EP 592 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00126 ER PT J AU POLINER, J WILMINGTON, RP KLUTE, GK AF POLINER, J WILMINGTON, RP KLUTE, GK GP HUMAN FACTORS & ERGONOM SOC TI STRENGTH CAPABILITIES WHILE PERFORMING TORQUING TASKS IN WEIGHTLESSNESS SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 LOCKHEED ENGN & SCI CO,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 593 EP 596 PG 4 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00127 ER PT S AU ORASANU, J STRAUCH, B AF ORASANU, J STRAUCH, B GP HUMAN FACTORS & ERGONOM SOC TI TEMPORAL FACTORS IN AVIATION DECISION-MAKING SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 4 Z9 4 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 935 EP 939 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00201 ER PT S AU ELLIS, SR BUCHER, UJ AF ELLIS, SR BUCHER, UJ GP HUMAN FACTORS & ERGONOM SOC TI DISTANCE PERCEPTION OF STEREOSCOPICALLY PRESENTED VIRTUAL OBJECTS OPTICALLY SUPERIMPOSED ON PHYSICAL OBJECTS BY A HEAD-MOUNTED SEE-THROUGH DISPLAY SO PROCEEDINGS OF THE HUMAN FACTORS AND ERGONOMICS SOCIETY 38TH ANNUAL MEETING, VOLS 1 AND 2 SE HUMAN FACTORS AND ERGONOMICS SOCIETY ANNUAL MEETING PROCEEDINGS LA English DT Proceedings Paper CT Human-Factors-and-Ergonomics-Society 38th Annual Meeting CY OCT 24-28, 1994 CL NASHVILLE, TN SP Human Factors & Ergonom Soc C1 NASA,MOFFETT FIELD,CA 94035. NR 0 TC 4 Z9 4 U1 0 U2 0 PU HUMAN FACTORS AND ERGONOMICS SOC PI SANTA MONICA PA PO BOX 1369, SANTA MONICA, CA 90406-1369 SN 1071-1813 J9 HUM FAC ERG SOC P PY 1994 BP 1300 EP 1304 PG 5 WC Engineering, Aerospace; Computer Science, Information Systems; Computer Science, Theory & Methods; Engineering, Industrial; Ergonomics SC Engineering; Computer Science GA BB69W UT WOS:A1994BB69W00268 ER PT S AU MATTY, JJ TENNENT, SG SHAW, RJ AF MATTY, JJ TENNENT, SG SHAW, RJ GP IEEE TI NATIONAL PARC (NPARC) ALLIANCE SO PROCEEDINGS OF THE IEEE 1994 NATIONAL AEROSPACE AND ELECTRONICS CONFERENCE, NAECON 1994, VOLS 1 AND 2 SE IEEE NATIONAL AEROSPACE AND ELECTRONICS CONFERENCE, NAECON LA English DT Proceedings Paper CT IEEE 1994 National Aerospace and Electronics conference (NAECON 1994) CY MAY 23-27, 1994 CL DAYTON, OH SP IEEE, DAYTON SECT, IEEE, AEROSP & ELECTR SYST 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 SN 0547-3578 BN 0-7803-1893-5 J9 PROC NAECON IEEE NAT PY 1994 BP 926 EP 931 DI 10.1109/NAECON.1994.332941 PG 6 WC Engineering, Aerospace; Engineering, Electrical & Electronic SC Engineering GA BB03F UT WOS:A1994BB03F00139 ER PT J AU MEYERS, JF USRY, JW MILLER, LS AF MEYERS, JF USRY, JW MILLER, LS TI ASSESSING THE CAPABILITY OF DOPPLER GLOBAL VELOCIMETRY TO MEASURE VORTICAL FLOW-FIELDS SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING LA English DT Article AB A new non-intrusive flow diagnostics instrumentation system, Doppler global velocimetry, is presented. The system is capable of making simultaneous three-component velocity measurements within a selected measurement plane at video camera rates. These velocity images can provide the researcher with spatial and temporal information about the flow field in a global sense. The investigation of a vortical flow above a 75-degrees delta wing comparing standard three-component fringe-type laser velocimetry measurements with Doppler global velocimetry measurements is presented. C1 WICHITA STATE UNIV,DEPT AEROSP ENGN,WICHITA,KS 67208. RP MEYERS, JF (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23665, USA. NR 9 TC 0 Z9 0 U1 0 U2 0 PU MECHANICAL ENG PUBL LTD PI EDMUNDS PA PO BOX 24, NORTHGATE AVE, BURY ST, EDMUNDS, SUFFOLK, ENGLAND IP32 6BW SN 0954-4100 J9 P I MECH ENG G-J AER JI Proc. Inst. Mech. Eng. Part G-J. Aerosp. Eng. PY 1994 VL 208 IS G2 BP 99 EP 105 DI 10.1243/PIME_PROC_1994_208_259_02 PG 7 WC Engineering, Aerospace; Engineering, Mechanical SC Engineering GA PR867 UT WOS:A1994PR86700004 ER PT J AU KRANTZ, TL RASHIDI, M KISH, JG AF KRANTZ, TL RASHIDI, M KISH, JG TI SPLIT TORQUE TRANSMISSION LOAD SHARING SO PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART G-JOURNAL OF AEROSPACE ENGINEERING LA English DT Article AB Split torque transmissions are attractive alternatives to conventional planetary for helicopter transmissions. The split torque designs can offer lighter weight and fewer parts but have not been used extensively for lack of experience, especially with obtaining proper load sharing. Two split torque designs that use different load-sharing methods have been studied. Precise indexing and alignment of the geartrain to produce acceptable load sharing has been demonstrated. An elastomeric torque splitter that has large torsional compliance and damping produces even better load sharing while reducing dynamic transmission error and noise. However, the elastomeric torque splitter as now configured is not capable over the full range of operating conditions of a fielded system. A thrust balancing load-sharing device was evaluated. Friction forces that oppose the motion of the balance mechanism are significant. A static analysis suggests increasing the helix angle of the input pinion of the thrust balancing design. Also, dynamic analysis of this design predicts good load sharing and a significant torsional response to accumulative pitch errors of the gears. C1 CLEVELAND STATE UNIV,CLEVELAND,OH 44115. UNITED TECHNOL CORP,SIKORSKY AIRCRAFT,STRATFORD,CT. RP KRANTZ, TL (reprint author), USA,NASA,LEWIS RES CTR,RES LAB,PROPULS DIRECTORATE,CLEVELAND,OH, USA. NR 11 TC 0 Z9 0 U1 1 U2 5 PU MECHANICAL ENG PUBL LTD PI EDMUNDS PA PO BOX 24, NORTHGATE AVE, BURY ST, EDMUNDS, SUFFOLK, ENGLAND IP32 6BW SN 0954-4100 J9 P I MECH ENG G-J AER JI Proc. Inst. Mech. Eng. Part G-J. Aerosp. Eng. PY 1994 VL 208 IS G2 BP 137 EP 148 DI 10.1243/PIME_PROC_1994_208_263_02 PG 12 WC Engineering, Aerospace; Engineering, Mechanical SC Engineering GA PR867 UT WOS:A1994PR86700008 ER PT B AU BAILEY, DH BARSZCZ, E DAGUM, L SIMON, HD AF BAILEY, DH BARSZCZ, E DAGUM, L SIMON, HD GP IEEE COMP SOC TI NAS-PARALLEL-BENCHMARK RESULTS-3-94 SO PROCEEDINGS OF THE SCALABLE HIGH-PERFORMANCE COMPUTING CONFERENCE LA English DT Proceedings Paper CT 1994 Scalable High Performance Computing Conference (SHPCC 94) CY MAY 23-25, 1994 CL KNOXVILLE, TN SP IEEE COMP SOC, TECH COMM SUPERCOMP APPLICAT C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. NR 0 TC 4 Z9 4 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 0-8186-5680-8 PY 1994 BP 111 EP 120 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BB02A UT WOS:A1994BB02A00016 ER PT B AU VANVOORST, B SEIDEL, S BARSZCZ, E AF VANVOORST, B SEIDEL, S BARSZCZ, E GP IEEE COMP SOC TI WORKLOAD OF AN IPSC/860 SO PROCEEDINGS OF THE SCALABLE HIGH-PERFORMANCE COMPUTING CONFERENCE LA English DT Proceedings Paper CT 1994 Scalable High Performance Computing Conference (SHPCC 94) CY MAY 23-25, 1994 CL KNOXVILLE, TN SP IEEE COMP SOC, TECH COMM SUPERCOMP APPLICAT C1 NASA,AMES RES CTR,RECOM TECHNOL,MOFFETT FIELD,CA 94086. NR 0 TC 23 Z9 23 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 0-8186-5680-8 PY 1994 BP 221 EP 228 DI 10.1109/SHPCC.1994.296647 PG 8 WC Computer Science, Hardware & Architecture SC Computer Science GA BB02A UT WOS:A1994BB02A00030 ER PT B AU YAN, JC SCHMIDT, MA SARUKKAI, S AF YAN, JC SCHMIDT, MA SARUKKAI, S GP IEEE COMP SOC TI MONITORING THE PERFORMANCE OF MULTIDISCIPLINARY APPLICATIONS ON THE IPSC/860 SO PROCEEDINGS OF THE SCALABLE HIGH-PERFORMANCE COMPUTING CONFERENCE LA English DT Proceedings Paper CT 1994 Scalable High Performance Computing Conference (SHPCC 94) CY MAY 23-25, 1994 CL KNOXVILLE, TN SP IEEE COMP SOC, TECH COMM SUPERCOMP APPLICAT C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. 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 0-8186-5680-8 PY 1994 BP 277 EP 284 DI 10.1109/SHPCC.1994.296655 PG 8 WC Computer Science, Hardware & Architecture SC Computer Science GA BB02A UT WOS:A1994BB02A00038 ER PT J AU DAVIS, B SCHMIDT, N AF DAVIS, B SCHMIDT, N GP ENVIRONM RES INST MICHIGAN TI REMOTE SENSING FOR HURRICANE ANDREW IMPACT ASSESSMENT SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS - NEEDS, SOLUTIONS, AND APPLICATIONS, VOL I SE THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments - Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NASA,COMMERCIAL REMOTE SENSING PROGRAMS,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1066-3711 J9 THEM CONF R PY 1994 BP 69 EP 69 PG 1 WC Engineering, Marine; Oceanography; Remote Sensing SC Engineering; Oceanography; Remote Sensing GA BC75R UT WOS:A1994BC75R00007 ER PT J AU MICK, M ALEXANDER, TM WOOLLEY, S AF MICK, M ALEXANDER, TM WOOLLEY, S GP ENVIRONM RES INST MICHIGAN TI MISSISSIPPI HIGH ACCURACY REFERENCE NETWORK AND COASTAL REMOTE SENSING SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS - NEEDS, SOLUTIONS, AND APPLICATIONS, VOL I SE THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments - Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NASA,COMMERCIAL REMOTE SENSING PROGRAMS,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1066-3711 J9 THEM CONF R PY 1994 BP 237 EP 247 PG 11 WC Engineering, Marine; Oceanography; Remote Sensing SC Engineering; Oceanography; Remote Sensing GA BC75R UT WOS:A1994BC75R00027 ER PT J AU PELLETIER, RE HOLLADAY, KW AF PELLETIER, RE HOLLADAY, KW GP ENVIRONM RES INST MICHIGAN TI UTILITY OF AIRBORNE ELECTROMAGNETIC PROFILER DATA FOR GEOMORPHOLOGICAL CHARACTERIZATION OF SHALLOW COASTAL ENVIRONMENTS - CASE STUDY - THE CAPE LOOKOUT, NC AREA SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS - NEEDS, SOLUTIONS, AND APPLICATIONS, VOL II SE THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments - Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NASA,COMM REM SENS OFF,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1066-3711 J9 THEM CONF R PY 1994 BP 70 EP 80 PG 11 WC Engineering, Marine; Oceanography; Remote Sensing SC Engineering; Oceanography; Remote Sensing GA BC75S UT WOS:A1994BC75S00009 ER PT S AU AMBROSIA, VG BRASS, JA RIGGAN, PJ EWING, R SEBESTA, PD AF AMBROSIA, VG BRASS, JA RIGGAN, PJ EWING, R SEBESTA, PD GP ENVIRONM RES INST MICHIGAN TI REMOTE SENSING OF TERRESTRIAL AND AQUATIC ECOSYSTEM ALTERATIONS FOLLOWING THE 1988 YELLOWSTONE-NATIONAL-PARK WILDFIRES - 5 YEARS OF RESEARCH SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS - NEEDS, SOLUTIONS, AND APPLICATIONS, VOL II SE THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments - Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 JCWS INC,NASA,AMES RES CTR,MOFFETT FIELD,CA 95035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1066-3711 J9 THEM CONF R PY 1994 BP 243 EP 256 PG 14 WC Engineering, Marine; Oceanography; Remote Sensing SC Engineering; Oceanography; Remote Sensing GA BC75S UT WOS:A1994BC75S00030 ER PT B AU DAVIS, B SCHMIDT, N AF DAVIS, B SCHMIDT, N GP ENVIRONM RES INST MICHIGAN TI REMOTE-SENSING FOR HURRICANE-ANDREW IMPACT ASSESSMENT SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS: NEEDS, SOLUTIONS, AND APPLICATIONS, VOLS I AND II LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments: Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NATL AERONAUT & SPACE ADM,COMMERCIAL REMOTE SENSING PROGRAMS,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP A69 EP A69 PG 1 WC Environmental Sciences; Oceanography; Remote Sensing SC Environmental Sciences & Ecology; Oceanography; Remote Sensing GA BA93E UT WOS:A1994BA93E00007 ER PT B AU MICK, M ALEXANDER, TM WOOLLEY, S AF MICK, M ALEXANDER, TM WOOLLEY, S GP ENVIRONM RES INST MICHIGAN TI MISSISSIPPI HIGH-ACCURACY REFERENCE NETWORK AND COASTAL REMOTE-SENSING SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS: NEEDS, SOLUTIONS, AND APPLICATIONS, VOLS I AND II LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments: Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NATL AERONAUT & SPACE ADM,COMMERCIAL REMOTE SENSING PROGRAMS,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP A237 EP A247 PG 11 WC Environmental Sciences; Oceanography; Remote Sensing SC Environmental Sciences & Ecology; Oceanography; Remote Sensing GA BA93E UT WOS:A1994BA93E00027 ER PT B AU AMBROSIA, VG BRASS, JA RIGGAN, PJ EWING, R SEBESTA, PD AF AMBROSIA, VG BRASS, JA RIGGAN, PJ EWING, R SEBESTA, PD GP ENVIRONM RES INST MICHIGAN TI REMOTE-SENSING OF TERRESTRIAL AND AQUATIC ECOSYSTEM ALTERATIONS FOLLOWING THE 1988 YELLOWSTONE-NATIONAL-PARK WILDFIRES - 5 YEARS OF RESEARCH SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS: NEEDS, SOLUTIONS, AND APPLICATIONS, VOLS I AND II LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments: Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 JCWS INC,NASA,AMES RES CTR,MOFFETT FIELD,CA 95035. NR 0 TC 0 Z9 0 U1 0 U2 1 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP B243 EP B256 PG 14 WC Environmental Sciences; Oceanography; Remote Sensing SC Environmental Sciences & Ecology; Oceanography; Remote Sensing GA BA93E UT WOS:A1994BA93E00112 ER PT B AU PELLETIER, RE HOLLADAY, KW AF PELLETIER, RE HOLLADAY, KW GP ENVIRONM RES INST MICHIGAN TI UTILITY OF AIRBORNE ELECTROMAGNETIC PROFILER DATA FOR GEOMORPHOLOGICAL CHARACTERIZATION OF SHALLOW COASTAL ENVIRONMENTS - CASE-STUDY - THE CAPE LOOKOUT, NC AREA SO PROCEEDINGS OF THE SECOND THEMATIC CONFERENCE ON REMOTE SENSING FOR MARINE AND COASTAL ENVIRONMENTS: NEEDS, SOLUTIONS, AND APPLICATIONS, VOLS I AND II LA English DT Proceedings Paper CT 2nd Thematic Conference on Remote Sensing for Marine and Coastal Environments: Needs, Solutions, and Applications CY JAN 31-FEB 02, 1994 CL NEW ORLEANS, LA SP MARINE SPILL RESPONSE CORP, US EPA, ENVIRONM RES INST MICHIGAN C1 NASA,COMM REM SENS OFF,BAY ST LOUIS,MS 39529. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 PY 1994 BP B70 EP B80 PG 11 WC Environmental Sciences; Oceanography; Remote Sensing SC Environmental Sciences & Ecology; Oceanography; Remote Sensing GA BA93E UT WOS:A1994BA93E00091 ER PT B AU CHATTERJEE, S GILBERT, JR SCHREIBER, R SHEFFLER, TJ AF CHATTERJEE, S GILBERT, JR SCHREIBER, R SHEFFLER, TJ BE Dongarra, JJ Tourancheau, B TI AUTOMATIC DISTRIBUTION IN HPF SO PROCEEDINGS OF THE SECOND WORKSHOP ON ENVIRONMENTS AND TOOLS FOR PARALLEL SCIENTIFIC COMPUTING SE SIAM PROCEEDINGS SERIES LA English DT Proceedings Paper CT 2nd Workshop on Environments and Tools for Parallel Scientific Computing CY MAY 25-27, 1994 CL TOWNSEND, TN SP ECOL NORMALE SUPER LYON, LAB COMP SCI OARAKKEKUSN, UNIV TENNESSEE KNOXVILLE, COMP SCI DEPT C1 NASA,AMES RES CTR,ADV COMP SCI RES INST,MOFFETT FIELD,CA 94035. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SIAM PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 BN 0-89871-343-9 J9 SIAM PROC S PY 1994 BP 11 EP 18 PG 8 WC Computer Science, Cybernetics; Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Mathematics, Applied SC Computer Science; Mathematics GA BC41M UT WOS:A1994BC41M00002 ER PT J AU FELDMAN, SC PELLETIER, RE WALSER, WE SMOOT, JC AHL, D AF FELDMAN, SC PELLETIER, RE WALSER, WE SMOOT, JC AHL, D GP ENVIRONM RES INST MICHIGAN TI INTEGRATION OF REMOTELY SENSED DATA AND GEOGRAPHIC INFORMATION SYSTEM ANALYSIS FOR ROUTING OF THE CASPIAN PIPELINE SO PROCEEDINGS OF THE TENTH THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING - EXPLORATION, ENVIRONMENT, AND ENGINEERING, VOL II SE PROCEEDINGS OF THE THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING LA English DT Proceedings Paper CT 10th Thematic Conference on Geologic Remote Sensing - Exploration, Environment, and Engineering CY MAY 09-12, 1994 CL SAN ANTONIO, TX SP ENVIRONM RES INST MICHIGAN, AMER SOC PHOTOGRAMMETRY & REMOTE SENSING, CONOCO INC, EARTH OBSERVAT MAGAZINE, GEOPHYS & ENVIRONM RES CORP, INTERA INFORMAT TECHNOL LTD, CANADA, NASA, US DOE C1 NASA,WASHINGTON,DC 20546. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1067-0106 J9 PR THEMAT CONF GEOL PY 1994 BP 206 EP 213 PG 8 WC Computer Science, Information Systems; Environmental Sciences; Geology; Remote Sensing SC Computer Science; Environmental Sciences & Ecology; Geology; Remote Sensing GA BC30E UT WOS:A1994BC30E00025 ER PT J AU CRIPPEN, RE FORD, JP BLOM, RG DOKKA, RK AF CRIPPEN, RE FORD, JP BLOM, RG DOKKA, RK GP ENVIRONM RES INST MICHIGAN TI AN EVALUATION OF FUYO-1 (JERS-1) OPTICAL DATA FOR GEOLOGIC INTERPRETATION SO PROCEEDINGS OF THE TENTH THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING - EXPLORATION, ENVIRONMENT, AND ENGINEERING, VOL II SE PROCEEDINGS OF THE THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING LA English DT Proceedings Paper CT 10th Thematic Conference on Geologic Remote Sensing - Exploration, Environment, and Engineering CY MAY 09-12, 1994 CL SAN ANTONIO, TX SP ENVIRONM RES INST MICHIGAN, AMER SOC PHOTOGRAMMETRY & REMOTE SENSING, CONOCO INC, EARTH OBSERVAT MAGAZINE, GEOPHYS & ENVIRONM RES CORP, INTERA INFORMAT TECHNOL LTD, CANADA, NASA, US DOE C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1067-0106 J9 PR THEMAT CONF GEOL PY 1994 BP 606 EP 606 PG 1 WC Computer Science, Information Systems; Environmental Sciences; Geology; Remote Sensing SC Computer Science; Environmental Sciences & Ecology; Geology; Remote Sensing GA BC30E UT WOS:A1994BC30E00069 ER PT J AU CRIPPEN, RE BLOM, RG HAMILTON, W AF CRIPPEN, RE BLOM, RG HAMILTON, W GP ENVIRONM RES INST MICHIGAN TI LANDSAT TM ENHANCEMENTS AND VISUALIZATION APPLIED TO THE YUCCA MOUNTAIN, NEVADA, NUCLEAR WASTE REPOSITORY SITE EVALUATION SO PROCEEDINGS OF THE TENTH THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING - EXPLORATION, ENVIRONMENT, AND ENGINEERING, VOL II SE PROCEEDINGS OF THE THEMATIC CONFERENCE ON GEOLOGIC REMOTE SENSING LA English DT Proceedings Paper CT 10th Thematic Conference on Geologic Remote Sensing - Exploration, Environment, and Engineering CY MAY 09-12, 1994 CL SAN ANTONIO, TX SP ENVIRONM RES INST MICHIGAN, AMER SOC PHOTOGRAMMETRY & REMOTE SENSING, CONOCO INC, EARTH OBSERVAT MAGAZINE, GEOPHYS & ENVIRONM RES CORP, INTERA INFORMAT TECHNOL LTD, CANADA, NASA, US DOE C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 0 Z9 0 U1 0 U2 0 PU ENVIRONMENTAL RESEARCH INST MICHIGAN PI ANN ARBOR PA PO BOX 134001, ANN ARBOR, MI 48113-4001 SN 1067-0106 J9 PR THEMAT CONF GEOL PY 1994 BP 635 EP 635 PG 1 WC Computer Science, Information Systems; Environmental Sciences; Geology; Remote Sensing SC Computer Science; Environmental Sciences & Ecology; Geology; Remote Sensing GA BC30E UT WOS:A1994BC30E00074 ER PT B AU SERAJI, H AF SERAJI, H GP IEEE, CONTROL SYST SOC TI CONFIGURATION CONTROL OF ROVER-MOUNTED MANIPULATORS SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON CONTROL APPLICATIONS, VOLS 1-3 LA English DT Proceedings Paper CT 3rd IEEE Conference on Control Applications CY AUG 24-26, 1994 CL IMOV STRATHCLYDE, GLASGOW, SCOTLAND SP IEEE, Control Syst Soc, Glasgow Dev Agcy HO IMOV STRATHCLYDE 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 0-7803-1872-2 PY 1994 BP 47 EP 52 PG 6 WC Automation & Control Systems; Engineering, Mechanical SC Automation & Control Systems; Engineering GA BB68C UT WOS:A1994BB68C00007 ER PT B AU SRIDHAR, B SUORSA, RE AF SRIDHAR, B SUORSA, RE GP IEEE, CONTROL SYST SOC TI PARALLEL-PROCESSING SYSTEMS FOR PASSIVE RANGING DURING HELICOPTER FLIGHT SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON CONTROL APPLICATIONS, VOLS 1-3 LA English DT Proceedings Paper CT 3rd IEEE Conference on Control Applications CY AUG 24-26, 1994 CL IMOV STRATHCLYDE, GLASGOW, SCOTLAND SP IEEE, Control Syst Soc, Glasgow Dev Agcy HO IMOV STRATHCLYDE DE PASSIVE RANGING; HELICOPTER CONTROL; PARALLEL PROCESSING; COMPUTER VISION C1 NASA,AMES RES CTR,MOFFETT FIELD,CA 94035. 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 0-7803-1872-2 PY 1994 BP 107 EP 112 PG 6 WC Automation & Control Systems; Engineering, Mechanical SC Automation & Control Systems; Engineering GA BB68C UT WOS:A1994BB68C00018 ER PT B AU HADAEGH, FY CHIANG, RY LIN, CF POLITOPOULOS, AS AF HADAEGH, FY CHIANG, RY LIN, CF POLITOPOULOS, AS GP IEEE, CONTROL SYST SOC TI STRUCTURAL VIBRATION SUPPRESSION USING FUZZY-LOGIC CONTROL SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON CONTROL APPLICATIONS, VOLS 1-3 LA English DT Proceedings Paper CT 3rd IEEE Conference on Control Applications CY AUG 24-26, 1994 CL IMOV STRATHCLYDE, GLASGOW, SCOTLAND SP IEEE, Control Syst Soc, Glasgow Dev Agcy HO IMOV STRATHCLYDE 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 0-7803-1872-2 PY 1994 BP 953 EP 958 PG 6 WC Automation & Control Systems; Engineering, Mechanical SC Automation & Control Systems; Engineering GA BB68C UT WOS:A1994BB68C00155 ER PT B AU BERENJI, HR AF BERENJI, HR GP IEEE TI FUZZY Q-LEARNING - A NEW APPROACH FOR FUZZY DYNAMIC PROGRAMMING SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON FUZZY SYSTEMS - IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE, VOLS I-III LA English DT Proceedings Paper CT 3rd IEEE Conference on Fuzzy Systems/IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 NASA,AMES RES CTR,INTELLIGENT INFERENCE SYST CORP,ARTIFICIAL INTELLIGENCE RES BRANCH,MT VIEW,CA 94035. NR 0 TC 14 Z9 14 U1 0 U2 1 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1897-8 PY 1994 BP 486 EP 491 DI 10.1109/FUZZY.1994.343737 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17S UT WOS:A1994BC17S00087 ER PT B AU GWALTNEY, DA HUMPHREYS, GL AF GWALTNEY, DA HUMPHREYS, GL GP IEEE TI FUZZY LOGIC CONTROL OF WIND TUNNEL TEMPERATURE PROCESSES SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON FUZZY SYSTEMS - IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE, VOLS I-III LA English DT Proceedings Paper CT 3rd IEEE Conference on Fuzzy Systems/IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. 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 0-7803-1897-8 PY 1994 BP 825 EP 830 DI 10.1109/FUZZY.1994.343842 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17S UT WOS:A1994BC17S00137 ER PT B AU CHIANG, RY JANG, JSR AF CHIANG, RY JANG, JSR GP IEEE TI FUZZY LOGIC ATTITUDE CONTROL FOR CASSINI SPACECRAFT SO PROCEEDINGS OF THE THIRD IEEE CONFERENCE ON FUZZY SYSTEMS - IEEE WORLD CONGRESS ON COMPUTATIONAL INTELLIGENCE, VOLS I-III LA English DT Proceedings Paper CT 3rd IEEE Conference on Fuzzy Systems/IEEE World Congress on Computational Intelligence CY JUN 26-29, 1994 CL ORLANDO, FL SP IEEE, NEURAL NETWORKS COUNCIL, IEEE, ORLANDO SECT C1 JET PROP LAB,PASADENA,CA 91109. OI JANG, JYH-SHING/0000-0002-7319-9095 NR 0 TC 6 Z9 6 U1 0 U2 0 PU I E E E PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 BN 0-7803-1897-8 PY 1994 BP 1532 EP 1537 DI 10.1109/FUZZY.1994.343922 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17S UT WOS:A1994BC17S00260 ER PT J AU MONGAN, PT AF MONGAN, PT GP SAFE ASSOC TI ANALYSIS OF DIFFERENCES BETWEEN SEATING POSITIONS IN SIMULATORS AND ORBITERS SO PROCEEDINGS OF THE THIRTY-FIRST ANNUAL SYMPOSIUM SAFE ASSOCIATION LA English DT Proceedings Paper CT 31st Annual SAFE Symposium CY NOV 08-10, 1993 CL LAS VEGAS, NV SP SAFE ASSOC C1 LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058. NR 0 TC 0 Z9 0 U1 0 U2 0 PU SAFE ASSOC PI YONCALLA PA 4995 SCOTTS VALLEY RD, PO BOX 490, YONCALLA, OR 97499-0490 PY 1994 BP 65 EP 69 PG 5 WC Engineering, Aerospace SC Engineering GA BA17C UT WOS:A1994BA17C00011 ER PT B AU MINTON, S UNDERWOOD, I AF MINTON, S UNDERWOOD, I GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI SMALL IS BEAUTIFUL - A BRUTE-FORCE APPROACH TO LEARNING 1ST-ORDER FORMULAS SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,RECOM TECHNOL,MOFFETT FIELD,CA 94035. NR 0 TC 2 Z9 2 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 168 EP 174 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00026 ER PT B AU HILL, RW JOHNSON, WL AF HILL, RW JOHNSON, WL GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI SITUATED PLAN ATTRIBUTION FOR INTELLIGENT TUTORING SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 3 Z9 3 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 499 EP 505 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00077 ER PT B AU BAUDIN, C PELL, B KEDAR, S AF BAUDIN, C PELL, B KEDAR, S GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI USING INDUCTION TO REFINE INFORMATION RETRIEVAL STRATEGIES SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,ARTIFICIAL INTELLIGENCE RES BRANCH,MOFFETT FIELD,CA 94035. NR 0 TC 2 Z9 2 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 553 EP 559 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00085 ER PT B AU FAYYAD, UM AF FAYYAD, UM GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI BRANCHING ON ATTRIBUTE VALUES IN DECISION TREE GENERATION SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 JET PROP LAB,AI GRP,PASADENA,CA 91109. NR 0 TC 11 Z9 13 U1 0 U2 1 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 601 EP 606 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00092 ER PT B AU DRUMMOND, M BRESINA, J SWANSON, K AF DRUMMOND, M BRESINA, J SWANSON, K GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI JUST-IN-CASE SCHEDULING SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,AI RES BRANCH,MOFFETT FIELD,CA 94035. NR 0 TC 15 Z9 15 U1 0 U2 2 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 1098 EP 1104 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00170 ER PT B AU MUSCETTOLA, N AF MUSCETTOLA, N GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI ON THE UTILITY OF BOTTLENECK REASONING FOR SCHEDULING SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,AI RES BRANCH,RECOM TECHNOL,MOFFETT FIELD,CA 94035. NR 0 TC 2 Z9 2 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 1105 EP 1110 PG 6 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00171 ER PT B AU NAYAK, PP AF NAYAK, PP GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI REPRESENTING MULTIPLE THEORIES SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,RECOM TECHNOL,AI RES BRANCH,MOFFETT FIELD,CA 94035. NR 0 TC 5 Z9 5 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 1154 EP 1160 PG 7 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00179 ER PT B AU PELL, B AF PELL, B GP AMER ASSOC ARTIFICIAL INTELLIGENCE TI A STRATEGIC METAGAME PLAYER FOR GENERAL CHESS-LIKE GAMES SO PROCEEDINGS OF THE TWELFTH NATIONAL CONFERENCE ON ARTIFICIAL INTELLIGENCE, VOLS 1 AND 2 LA English DT Proceedings Paper CT 12th National Conference on Artificial Intelligence CY JUL 31-AUG 04, 1994 CL SEATTLE, WA SP AMER ASSOC ARTIFICIAL INTELLIGENCE C1 NASA,AMES RES CTR,RIACS,AI RES BRANCH,MOFFETT FIELD,CA 94035. NR 0 TC 4 Z9 4 U1 0 U2 0 PU M I T PRESS PI CAMBRIDGE PA 55 HAYWARD ST, CAMBRIDGE, MA 02142 BN 0-262-61102-3 PY 1994 BP 1378 EP 1385 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BC17T UT WOS:A1994BC17T00213 ER PT J AU ROSS, HD AF ROSS, HD TI IGNITION OF AND FLAME SPREAD OVER LABORATORY-SCALE POOLS OF PURE LIQUID FUELS SO PROGRESS IN ENERGY AND COMBUSTION SCIENCE LA English DT Review ID BUOYANT-THERMOCAPILLARY FLOW; THIN SOLID FUEL; GAS; MECHANISMS; BEHAVIOR; MIXTURES; LAYERS AB This article is a review of modeling and experiments of the ignition and flame spread over liquid fuel pools for separate regimes defined by the initial pool temperature relative to the fuel flash point. The purpose of this review is twofold. First it will emphasise newer or lesser known studies, both experimental and numerical, because these may question or alter some of the conclusions from the last review of the field by Glassman and Dryer, published in 1981. Second, it will cover the additional subjects of ignition susceptibility, analytic and numerical modeling, non-air atmospheres and forced flow, beds of fuel-soaked sand or glass beads and buoyancy-related processes applicable to microgravity combustion science and spacecraft fire safety. The review concludes with recommendations for further numerical and experimental research. RP ROSS, HD (reprint author), NASA,LEWIS RES CTR,MS-500 217,CLEVELAND,OH 44135, USA. NR 112 TC 75 Z9 77 U1 0 U2 7 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0360-1285 J9 PROG ENERG COMBUST JI Prog. Energy Combust. Sci. PY 1994 VL 20 IS 1 BP 17 EP 63 DI 10.1016/0360-1285(94)90005-1 PG 47 WC Thermodynamics; Energy & Fuels; Engineering, Chemical; Engineering, Mechanical SC Thermodynamics; Energy & Fuels; Engineering GA NU260 UT WOS:A1994NU26000002 ER PT J AU UEDA, Y EBISAWA, K DONE, C AF UEDA, Y EBISAWA, K DONE, C TI SPECTRAL STUDY OF GX-339-4 IN THE LOW-INTENSITY STATE OBSERVED WITH GINGA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE BLACK HOLES; STARS, BINARIES; X-RAYS, BINARIES; X-RAYS, SPECTRA ID ACTIVE GALACTIC NUCLEI; X-RAY-EMISSION; COLD MATTER; SEYFERT-1 GALAXIES; CYGNUS X-1; BLACK-HOLE; EXOSAT OBSERVATIONS; GX 339-4; GX339-4; LINE AB The energy spectra of the black-hole candidate GX 339-4 in the low-intensity state were observe on four occasions through 1989 to 1991 with the Large Area Counter on board the Ginga satellite. The spectra showed significant deviations from a power-law, with an iron K(alpha) emission line at approximately 6.4 keV and a broad iron K-edge structure above approximately 7 keV. The energy spectra above approximately 4 keV were successfully explained with a reflection model, in which part of the incident X-rays with a power-law spectrum is Compton reflected by optically thick matter, resulting in a harder continuum component with iron K-edge absorption and an iron fluorescent line. The line equivalent width with respect to the reflection component decreases as the source flux increases. This is consistent with an increase in the ionization state of the material, so that resonant absorption followed by Auger ionization depletes the line. The photon-index of the power-law component was clearly variable, and it correlated with the relative amount of the reflection component. Such a correlation may be explained in the context of the anisotropic Comptonization models of Haardt et al. (1993 ApJL 411 L95), or by a variation of the relative geometry of the source and disk. C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. UNIV LEICESTER,LEICESTER LE1 7RH,ENGLAND. RP UEDA, Y (reprint author), INST SPACE & ASTRON SCI,3-1-1 YOSHINODAI,SAGAMIHARA,KANAGAWA 229,JAPAN. RI done, chris/D-4605-2016 OI done, chris/0000-0002-1065-7239 NR 51 TC 50 Z9 50 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 1 BP 107 EP 115 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA MY163 UT WOS:A1994MY16300011 ER PT J AU AWAKI, H MUSHOTZKY, R TSURU, T FABIAN, AC FUKAZAWA, Y LOEWENSTEIN, M MAKISHIMA, K MATSUMOTO, H MATSUSHITA, K MIHARA, T OHASHI, T RICKER, GR SERLEMITSOS, PJ TSUSAKA, Y YAMAZAKI, T AF AWAKI, H MUSHOTZKY, R TSURU, T FABIAN, AC FUKAZAWA, Y LOEWENSTEIN, M MAKISHIMA, K MATSUMOTO, H MATSUSHITA, K MIHARA, T OHASHI, T RICKER, GR SERLEMITSOS, PJ TSUSAKA, Y YAMAZAKI, T TI ASCA OBSERVATION OF 3 BRIGHT EARLY-TYPE GALAXIES - NGC-4472, NGC-4406, AND NGC-4636 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE EARLY TYPE GALAXIES; GALAXIES, ABUNDANCES; GALAXIES, INDIVIDUAL (NGC-4472, NGC-4406, NGC-4636); X-RAYS, GALAXIES ID ELLIPTIC GALAXIES; COOLING FLOWS; RAY AB We report ASCA 0.3-10 keV X-ray observations of three early type galaxies, NGC 4472, NGC 4406, and NGC 4636. The extended emission in these galaxies is well described by thin thermal emission from hot gas. The gas temperature is 0.92 +/- 0.02 keV for NGC 4472, 0.79 +/- 0.01 keV for NGC 4406, and 0.73 +/- 0.02 keV for NGC 4636. The metal abundance for NGC 4472, NGC 4406, and NGC 4636 are, under the assumption of solar ratios, 0.63 +/- 0.15, 0.45 +/- 0.10, and 0.38 +/- 0.07, respectively. Detailed analysis has allowed determination of the abundances of oxygen, silicon, sulfur, and iron. The observed abundances axe consistent with the solar ratios. For NGC 4472 and NGC 4406 we also determined the mean temperature of the gas producing the Si lines from the ratio of the Si H to He-like lines and find it to be consistent with the continuum temperature. The X-ray temperature is in good agreement with the observed optical velocity dispersion, stellar density profile, and gas density profile. Our data indicates that the supernova rate should be less than one fifth of the nominal rate in early type galaxies. We derive the mass of these systems within fixed angular scales and find that M/L > 40, confirming that elliptical galaxies are dark matter dominated at large radii. C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. UNIV TOKYO,SCH SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. INST PHYS & CHEM RES,WAKO,SAITAMA 35001,JAPAN. TOKYO METROPOLITAN UNIV,FAC SCI,DEPT PHYS,HACHIOJI,TOKYO 19203,JAPAN. NAGOYA UNIV,FAC SCI,DEPT PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. RP AWAKI, H (reprint author), KYOTO UNIV,FAC SCI,DEPT PHYS,SAKYO KU,KYOTO 60601,JAPAN. RI Mihara, Tatehiro/C-5536-2017 OI Mihara, Tatehiro/0000-0002-6337-7943 NR 25 TC 91 Z9 91 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L65 EP L70 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400006 ER PT J AU BAUTZ, MW MUSHOTZKY, R FABIAN, AC YAMASHITA, K GENDREAU, KC ARNAUD, KA CREW, GB TAWARA, Y AF BAUTZ, MW MUSHOTZKY, R FABIAN, AC YAMASHITA, K GENDREAU, KC ARNAUD, KA CREW, GB TAWARA, Y TI ASCA DETECTION OF IRON LINE EMISSION FROM THE DISTANT GALAXY CLUSTER ABELL-370 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, CLUSTERING; GALAXIES, EVOLUTION; INTERGALACTIC MEDIUM; X-RAYS, GALAXIES ID X-RAY; EVOLUTION; TEMPERATURES; CATALOG; SAMPLE AB ASCA observations of the gravitational lens and Butcher-Oemler cluster Abell 370 (z = 0.37) give kT = 8.8 +/- 0.8 keV and A = 0.5 +/- 0.1 cosmic. If the gas were isothermal the implied cluster mass would be M(vir) = (1.5 +/- 0.4) x 10(15)M., a, value consistent with the optically-determindd virial mass. We detect iron K line emission with high confidence. This measurement increases, by a large factor, the lookback time at which the presence of iron in the intracluster medium has been established. The iron abundance is marginally higher than that of low-redshift clusters of similar temperature, so our results are consistent with models in which all enrichment occurs before the epoch corresponding to z = 0.37. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. NAGOYA UNIV,SCH SCI,DEPT PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. RP BAUTZ, MW (reprint author), MIT,CTR SPACE RES,CAMBRIDGE,MA 02139, USA. NR 27 TC 14 Z9 14 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L131 EP L136 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800001 ER PT J AU FABIAN, AC KUNIEDA, H INOUE, S MATSUOKA, M MIHARA, T MIYAMOTO, S OTANI, C RICKER, G TANAKA, Y YAMAUCHI, M YAQOOB, T AF FABIAN, AC KUNIEDA, H INOUE, S MATSUOKA, M MIHARA, T MIYAMOTO, S OTANI, C RICKER, G TANAKA, Y YAMAUCHI, M YAQOOB, T TI ASCA OBSERVATIONS OF THE WARM ABSORBER IN MCG-6-30-15 - THE DISCOVERY OF A CHANGE IN COLUMN DENSITY SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, INDIVIDUAL (MCG-6-30-15); GALAXIES, SEYFERT; LINE, PROFILES; X-RAYS, GALAXIES ID X-RAY ABSORPTION; ACTIVE GALACTIC NUCLEI; COLD MATTER; SEYFERT-1 GALAXIES; VARIABILITY; REFLECTION AB We report the first X-ray observations of the Seyfert 1 galaxy MCG-6-30-15 obtained at medium spectral resolution. The partially-ionized, 'warm' absorber is resolved and shown to be due to O VII and O VIII. The main absorption edge agrees with that of O VII at the redshift of the galaxy to within 1 %. The column density of the absorbing material is greater by a factor of 2 in the first of our two observations, which were 3 weeks apart, whilst the mean flux is slightly lower and the ionization parameter slightly higher. We also discuss the fluorescent iron emission line seen in the source, which is at 6.40 keV. The line is significantly broadened, with a FWHM of about 0.4 keV. C1 UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. NAGOYA UNIV,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA,AICHI 464,JAPAN. OSAKA UNIV,DEPT EARTH & SPACE SCI,TOYONAKA,OSAKA 560,JAPAN. MIT,DEPT SPACE RES,CAMBRIDGE,MA 02139. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN. RP FABIAN, AC (reprint author), INST SPACE & ASTRONAUT SCI,3-1-1 YOSHINODAI,SAGAMIHARA,KANAGAWA 229,JAPAN. RI Otani, Chiko/A-6510-2016; Mihara, Tatehiro/C-5536-2017 OI Mihara, Tatehiro/0000-0002-6337-7943 NR 17 TC 63 Z9 63 U1 0 U2 2 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L59 EP L63 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400005 ER PT J AU FUKAZAWA, Y OHASHI, T FABIAN, AC CANIZARES, CR IKEBE, Y MAKISHIMA, K MUSHOTZKY, RF YAMASHITA, K AF FUKAZAWA, Y OHASHI, T FABIAN, AC CANIZARES, CR IKEBE, Y MAKISHIMA, K MUSHOTZKY, RF YAMASHITA, K TI METAL CONCENTRATION AND X-RAY COOL SPECTRAL COMPONENT IN THE CENTRAL REGION OF THE CENTAURUS CLUSTER OF GALAXIES SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, ABUNDANCES; GALAXIES, CLUSTERING; GALAXIES, CLUSTERS, INDIVIDUAL, (CENTAURUS); X-RAYS, GALAXIES ID PERSEUS CLUSTER; EXOSAT OBSERVATIONS; INTRACLUSTER GAS; IRON; GINGA; FLOWS AB Spatially resolved energy spectra in the energy range 0.5-10 keV have been measured for the Centaurus cluster of galaxies with ASCA. Within 10' (200 kpc) from the cluster center, the helium-like iron K emission line exhibits a dramatic increase toward the center rising from an equivalent width approximately 500 eV to approximately 1500 eV corresponding to an abundance change from 0.3 to 1.0 solar. The presence of strong iron L lines indicates an additional cool component (kT approximately 1 keV) within 10' from the center. The cool component requires absorption in excess of the galactic value and this excess absorption increases towards the central region of the cluster. In the surrounding region with radius greater than 10', the spectra are well described by a single temperature thermal model with kT approximately 4 keV and spatially uniform abundances at about 0.3-0.4 times solar. The detection of metal-rich hot and cool gas in the cluster center implies a complex nature of the central cluster gas which is likely to be related to the presence of the central cD galaxy NGC 4696. C1 MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. TOKYO METROPOLITAN UNIV,FAC SCI,DEPT PHYS,HACHIOJI,TOKYO 19203,JAPAN. UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. NAGOYA UNIV,FAC SCI,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. RP FUKAZAWA, Y (reprint author), UNIV TOKYO,SCH SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. NR 21 TC 63 Z9 63 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L55 EP L58 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400004 ER PT J AU FUKAZAWA, Y MAKISHIMA, K EBISAWA, K FABIAN, AC GENDREAU, KC IKEBE, Y IWASAWA, K KII, T MUSHOTZKY, RF OHASHI, T OTANI, C RICKER, GR TAMURA, T TANAKA, Y UEDA, Y WHITE, NE AF FUKAZAWA, Y MAKISHIMA, K EBISAWA, K FABIAN, AC GENDREAU, KC IKEBE, Y IWASAWA, K KII, T MUSHOTZKY, RF OHASHI, T OTANI, C RICKER, GR TAMURA, T TANAKA, Y UEDA, Y WHITE, NE TI THE FLUORESCENCE-DOMINATED X-RAY-SPECTRUM OF THE SPIRAL GALAXY NGC-6552 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, INDIVIDUAL (NGC 6552); GALAXIES, SEYFERT; GALAXIES, X-RAYS; X-RAYS, SPECTRA AB A hard X-ray source with a 2-10 keV flux of similar to 6 x 10(-13) ergs s(-1) cm(-2) was detected with ASCA in the north ecliptic pole region. It is identified with the spiral galaxy NGC 6552 at a redshift of z = 0.026, which is optically classified as a Seyfert 2 galaxy. The X-ray spectrum consists of a series of atomic K-emission lines from (nearly-) neutral species of at least seven abundant elements, and a heavily absorbed (N-H similar to 6 X 10(23) cm(-2)) hard continuum. The iron line has an equivalent width as large as similar to 0.9 keV. Our results show that NGC 6552 is an extreme type 2 Seyfert galaxy, in which the fluorescent lines are produced when hard X-rays from a hidden active nucleus are reflected off thick cool matter into our line of sight. The intrinsic 2-10 keV luminosity of the nucleus is estimated to be at least 6 x 10(42) ergs s(-1). C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY PHYS LAB,GREENBELT,MD 20771. UNIV CAMBRIDGE,INST ASTRON,CAMBRIDGE CB3 0HA,ENGLAND. MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. NAGOYA UNIV,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. TOKYO METROPOLITAN UNIV,DEPT PHYS,HACHIOJI,TOKYO 19203,JAPAN. RP FUKAZAWA, Y (reprint author), UNIV TOKYO,SCH SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. RI White, Nicholas/B-6428-2012; Tamura, Takayuki/K-8236-2012; Otani, Chiko/A-6510-2016 OI White, Nicholas/0000-0003-3853-3462; NR 23 TC 27 Z9 27 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L141 EP L146 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800003 ER PT J AU HAYASHI, I KOYAMA, K OZAKI, M MIYATA, E TSUNEMI, H HUGHES, JP PETRE, R AF HAYASHI, I KOYAMA, K OZAKI, M MIYATA, E TSUNEMI, H HUGHES, JP PETRE, R TI X-RAY SPECTROSCOPY OF SNR E0102-72 WITH THE ASCA SATELLITE SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE ISM, INDIVIDUAL OBJECTS (E0102-72); ISM, SUPERNOVA REMNANTS; X-RAYS, SOURCES; X-RAYS, SPECTRA ID SMALL MAGELLANIC CLOUD; SUPERNOVA-REMNANTS; SPECTRUM AB The ASCA satellite has obtained a moderate-re-solution energy spectrum of E0102-72, the brightest SNR in the Small Magellanic Cloud. This paper reports on the first results of the analysis of the high quality spectrum of E0102-72. The spectrum shows resolved emission lines of He-like Kalpha, H-like Kalpha, and Kbeta from oxygen, neon, and magnesium. The intensity ratios of these lines cannot be explained by a multi-component plasma model with uniform abundances, but requires abundance inhomogeneity in the plasma. We demonstrate how the spectral capabilities of the ASCA SIS make available new diagnostics of X-ray plasmas in a state of non-equilibrium ionization. Some interpretation based on the spectral analysis is also given. C1 OSAKA UNIV,FAC SCI,DEPT EARTH & SPACE SCI,TOYONAKA,OSAKA 560,JAPAN. HARVARD SMITHSONIAN CTR ASTROPHYS,CAMBRIDGE,MA 02138. NASA,GSFC,GREENBELT,MD 20771. RP HAYASHI, I (reprint author), KYOTO UNIV,FAC SCI,DEPT PHYS,SAKYO KU,KYOTO 60601,JAPAN. RI Ozaki, Masanobu/K-1165-2013 NR 13 TC 35 Z9 35 U1 2 U2 2 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L121 EP L124 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400017 ER PT J AU HOLT, SS GOTTHELF, EV TSUNEMI, H NEGORO, H AF HOLT, SS GOTTHELF, EV TSUNEMI, H NEGORO, H TI ASCA OBSERVATIONS OF CASSIOPEIA-A SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE ISM, INDIVIDUAL OBJECTS, CAS A; ISM, SUPERNOVA REMNANTS; X-RAYS, INTERSTELLAR ID SUPER-NOVA REMNANTS; EMISSION; SPECTRA AB The ASCA Observatory provides the first capability to map a diffuse X-ray source in individually resolved emission lines. We have applied this capability to the Cas A supernova remnant, measuring the mean energies and equivalent widths of 14 line features in three distinct spatial regions. The northwest (NW) and southeast (SE) regions provide the large fraction of the X-ray emission at energies below 4 keV, and define the axis of a Doppler map of the remnant constructed by measuring the peak energy of the prominent Si-K feature. Using restoration techniques to obtain image quality equivalent to 30'' FWHM, we present restored images in the two brightest line features, and in two continuum bands. An emission region in the west is increasingly prominent at higher energies, and its markedly lower metallicity and correlation with radio emission suggest that its X-ray emission has a larger component from fore-shocked material than do the NW and SE regions where the emission is presumed to be dominated by reverse-shocked material. C1 OSAKA UNIV,FAC SCI,TOYONAKA,OSAKA 560,JAPAN. RP HOLT, SS (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 19 TC 76 Z9 76 U1 0 U2 1 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L151 EP L155 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800005 ER PT J AU ISHIDA, M MUKAI, K OSBORNE, JP AF ISHIDA, M MUKAI, K OSBORNE, JP TI OBSERVATION OF EX-HYDRAE WITH ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE CATACLYSMIC VARIABLES; STARS, INDIVIDUAL (EX-HYDRAE); X-RAYS, STARS ID X-RAY OBSERVATIONS; ACCRETION; STATE; HYA AB We have observed the intermediate polar EX Hya with ASCA, and have clearly detected He-like and H-like Ka emission lines from Mg to Fe. The intensity ratios of these pairs of lines are not compatible with an isothermal plasma, and a temperature distribution can no longer be parameterized by the conventional two emission component model. We have successfully decomposed iron line emission into thermal plasma component and fluorescent component. The equivalent width of the fluorescent component is approximately 80 eV. C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. UNIV LEICESTER,DEPT PHYS & ASTRON,LEICESTER LE1 7RH,ENGLAND. RP ISHIDA, M (reprint author), INST SPACE & ASTRONAUT SCI,3-1-1 YOSHINODAI,SAGAMIHARA,KANAGAWA 229,JAPAN. NR 16 TC 35 Z9 35 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L81 EP L85 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400009 ER PT J AU IWASAWA, K YAQOOB, T AWAKI, H OGASAKA, Y AF IWASAWA, K YAQOOB, T AWAKI, H OGASAKA, Y TI AN ASCA OBSERVATION OF THE SEYFERT-2 GALAXY MARKARIAN-3 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Letter DE GALAXIES-ACTIVE; GALAXIES INDIVIDUAL (MKN-3); GALAXIES NUCLEI; X-RAYS GALAXIES ID RAY; SPECTRA AB We report preliminary results of an ASCA observation of the Seyfert 2 galaxy Mkn 3. Comparison with previous Ginga and BBXRT observations shows that the observed hard X-ray luminosity above 4 keV decreased by a factor of approximately 3 (intrinsic luminosity by almost a factor of 6) in a period of approximately 3.6 yr. On the other hand, the soft luminosity has not varied significantly in approximately 13 yr, lending support to the extended nature of the soft emission, perhaps dominated by scattering of the nuclear X-rays. ASCA resolves the Fe K line emission into at least two components for the first time. The dominant component at 6.4 keV has an equivalent width of approximately 860 eV and FWHM approximately 10(4) km s-1, while the second component has an equivalent width of approximately 190 eV and appears to be narrower than the first. The total intensity of the Fe K emission decreased by factor of over 3 in response to the decrease in the continuum level, implying that a substantial part of the dominant Fe K emission must originate in a region smaller than that responsible for the soft emission. The variability provides direct evidence that the hard X-ray continuum and Fe K line in this Seyfert 2 are being observed directly through the nuclear obscuring material, not in scattered light. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. KYOTO UNIV,DEPT PHYS,SAKYO KU,KYOTO 60601,JAPAN. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. RP IWASAWA, K (reprint author), NAGOYA UNIV,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. NR 14 TC 38 Z9 38 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 5 BP L167 EP L171 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PN914 UT WOS:A1994PN91400001 ER PT J AU KITAMOTO, S KAWASHIMA, K NEGORO, H MIYAMOTO, S WHITE, NE NAGASE, F AF KITAMOTO, S KAWASHIMA, K NEGORO, H MIYAMOTO, S WHITE, NE NAGASE, F TI RESOLVING THE CYGNUS-X-3 IRON K-LINE SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE STARS, INDIVIDUAL (CYGNUS-X-3); STARS, WINDS; STARS, WOLF-RAYET; X-RAYS, BINARIES; X-RAYS, SPECTRA ID X-RAYS; MODEL; EMISSION; SPECTRA AB An ASCA observation of Cygnus X-3 on 1993 June 11, in its X-ray high intensity state, has for the first time resolved the broad iron K line emission into three components: a He-like line at 6.67 +/- 0.01 keV, a H-like line at.6.96 +/- 0.02 keV, and a neutral line at 6.37 +/- 0.03 keV. The line intensities of the 6.67 keV and 6.96 keV lines are modulated with the 4.8 hr orbital period and are maximum when the continuum intensity is minimum. There is a sharp minimum of the line intensity on the rising phase of the continuum intensity. An iron absorption edge is observed at 7.19 +/- 0.02 keV. The optical depth of the absorption edge varies from 0.3 to 0.5 and is in anti-phase with the overall X-ray continuum modulation. The observed complexity of the iron K line region is greater than that had been assumed in previous spectral modelling based on observations with lower resolution detectors. C1 NASA,GSFC,GREENBELT,MD 20771. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. RP KITAMOTO, S (reprint author), OSAKA UNIV,FAC SCI,DEPT EARTH & SPACE SCI,1-1 MACHIKANEYAMA CHO,TOYONAKA,OSAKA 560,JAPAN. RI White, Nicholas/B-6428-2012 OI White, Nicholas/0000-0003-3853-3462 NR 26 TC 21 Z9 21 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L105 EP L108 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400014 ER PT J AU KOHMURA, Y INOUE, H AOKI, T ISHIDA, M ITOH, M KOTANI, T TANAKA, Y ISHISAKI, Y MAKISHIMA, K MATSUSHITA, K GOTTHELF, E RICKER, G TSUSAKA, Y AF KOHMURA, Y INOUE, H AOKI, T ISHIDA, M ITOH, M KOTANI, T TANAKA, Y ISHISAKI, Y MAKISHIMA, K MATSUSHITA, K GOTTHELF, E RICKER, G TSUSAKA, Y TI DETECTION OF X-RAYS FROM SN 1993J WITH ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE STARS, EVOLUTION; SUPERNOVAE, GENERAL; SUPERNOVAE, INDIVIDUAL (SN 1993J); X-RAYS, STARS ID M81; EMISSION; SUPERNOVA-1993J; DISCOVERY; SN-1993J; MODELS AB ASCA observed SN 1993J seven times between April 5 and October 24 in 1993. The 1-10 keV luminosity 10 d after the explosion was (15+/-4)x10(39) erg s(-1) and decreased monotonicly to (1.3+/-0.4)x10(39) erg s(-1) 210 d after the explosion, when a distance of 3.6 Mpc was assumed. The hardness ratio (2-10 keV/0.5-2 keV) significantly decreased during the course of the observations. The spectrum obtained from a sky region including not only SN 1993J but also the nearby X-ray source clearly shows an iron emission line. The correlation between the iron line flux with the SN 1993J flux suggests that the iron line emission originated in SN 1993J These observational results are discussed in the context of thermal X-ray emission from a hot region behind the shock due to the collision of the supernova ejecta with the pre-supernova stellar wind. C1 INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. UNIV TOKYO,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. NAGOYA UNIV,DEPT PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. RP KOHMURA, Y (reprint author), INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN. RI Kohmura, Yoshiki/A-9967-2016 OI Kohmura, Yoshiki/0000-0001-5182-063X NR 33 TC 30 Z9 30 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L157 EP L161 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800006 ER PT J AU KOTANI, T KAWAI, N AOKI, T DOTY, J MATSUOKA, M MITSUDA, K NAGASE, F RICKER, G WHITE, NE AF KOTANI, T KAWAI, N AOKI, T DOTY, J MATSUOKA, M MITSUDA, K NAGASE, F RICKER, G WHITE, NE TI DISCOVERY OF THE DOUBLE DOPPLER-SHIFTED EMISSION-LINE SYSTEMS IN THE X-RAY-SPECTRUM OF SS-433 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE JETS; STARS, INDIVIDUAL (SS 433); X-RAYS, BINARIES; X-RAYS, SPECTRA ID SS433; SS-433; ECLIPSE AB We have used the CCD X-ray spectrometers on ASCA and resolved the X-ray emission line from the jet of SS 433 both into Doppler-shifted components with two distinct velocities, and into emission from different ionization states of iron, i.e., FeXXV and FeXXVI. This is the first direct detection of the two Doppler shifted beams in the X-ray spectra of SS 433 and allows the radial velocity of the jet along the line of sight to be determined with an accuracy comparable to the optical spectroscopy. We also found pairs of emission lines from other atomic species, such as ionized silicon and sulfur, with the Doppler shifts consistent with each other. This confirms the origin of the X-ray emission in the high temperature plasma in the jets. C1 INST PHYS & CHEM RES,WAKO,SAITAMA 35001,JAPAN. MIT,CTR SPACE RES,CAMBRIDGE,MA 01239. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RP KOTANI, T (reprint author), INST SPACE & ASTRONAUT SCI,3-1-1 YOSHINODAI,SAGAMIHARA,KANAGAWA 229,JAPAN. RI Mitsuda, Kazuhisa/C-2649-2008; White, Nicholas/B-6428-2012 OI White, Nicholas/0000-0003-3853-3462 NR 16 TC 45 Z9 45 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L147 EP L150 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800004 ER PT J AU MAKISHIMA, K FUJIMOTO, R ISHISAKI, Y KII, T LOEWENSTEIN, M MUSHOTZKY, R SERLEMITSOS, P SONOBE, T TASHIRO, M YAQOOB, T AF MAKISHIMA, K FUJIMOTO, R ISHISAKI, Y KII, T LOEWENSTEIN, M MUSHOTZKY, R SERLEMITSOS, P SONOBE, T TASHIRO, M YAQOOB, T TI DISCOVERY OF AN OBSCURED LOW-LUMINOSITY ACTIVE NUCLEUS IN THE SPIRAL GALAXY NGC-4258 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, ACTIVE; GALAXIES, INDIVIDUAL (NGC-4258); GALAXIES, JETS; X-RAYS, SPECTRA ID X-RAY-SPECTRUM; SEYFERT-GALAXIES; EMISSION; M31 AB The spectra and images of the nearby jet galaxy NGC 4258 (M106) obtained with ASCA indicate presence of several distinct X-ray emission components. The emission above 3 keV is pointlike and coincident in position with the optical nucleus, exhibiting a hard (photon index approximately 1.78) and absorbed (N(H) approximately 1.5 x 10(23) cm-2) spectrum. This provides clear evidence that NGC 4258 hosts an obscured active nucleus of low luminosity, about 4 x 10(40) ergs s-1 in 2-10 keV after removing the absorption. Iron K-line emission with an equivalent width 0.25 +/- 0.10 keV was detected. The emission below 1 keV is dominated by an extended (approximately 4') thin-thermal component with a temperature approximately 0.5 keV exhibiting atomic emission lines, possibly associated with the jet. There exists a third continuum component with an intermediate spectral hardness, which is brightest at approximately 1' south-east of the nucleus. C1 INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. RP MAKISHIMA, K (reprint author), UNIV TOKYO,SCH SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. RI Tashiro, Makoto/J-4562-2012 NR 27 TC 95 Z9 95 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L77 EP & PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400008 ER PT J AU MIHARA, T MATSUOKA, M MUSHOTZKY, RF KUNIEDA, H OTANI, C MIYAMOTO, S YAMAUCHI, M AF MIHARA, T MATSUOKA, M MUSHOTZKY, RF KUNIEDA, H OTANI, C MIYAMOTO, S YAMAUCHI, M TI SOFT-X-RAY SPECTRAL FEATURES IN THE SEYFERT-1 GALAXY NGC4051 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, INDIVIDUAL (NGC 4051); GALAXIES, SEYFERT; GALAXIES, X-RAYS ID COLD MATTER; VARIABILITY; MCG-6-30-15; REFLECTION; NGC-4051; NUCLEI; LINE; AGN AB We report ASCA observations of NGC 4051 during the PV phase. The time averaged X-ray spectrum is not well fit by a simple power law with an iron K-emission line and shows significant absorption-edge features most probably due to O VII and O VIII and a strong soft, excess. This is the first direct measurement of edges in the spectrum of this object and confirms that the X-ray spectrum of NGC 4051 is modified by a ''warm'' absorbing gas. The best fit underlying power law index in the 0.4-10 keV band is 1.88. A power law modified by a warm absorber model can partly explain the apparent soft excess and qualitatively fit the SIS spectrum. However, the addition of a black body of kT similar to 0.1 keV improves the fit considerably. The 90% upper limit on the width of the iron line is 460 eV FWHM. Applying the fluorescent iron line model from an accretion disk gives an upper limit of 20 degrees for the inclination of the disk. C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NAGOYA UNIV,FAC SCI,DEPT PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. OSAKA UNIV,FAC SCI,DEPT EARTH & SPACE SCI,TOYONAKA,OSAKA 560,JAPAN. RP MIHARA, T (reprint author), INST PHYS & CHEM RES,2-1 HIROSAWA,WAKO,SAITAMA 35101,JAPAN. RI Otani, Chiko/A-6510-2016; Mihara, Tatehiro/C-5536-2017 OI Mihara, Tatehiro/0000-0002-6337-7943 NR 26 TC 37 Z9 37 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 4 BP L137 EP L140 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PE568 UT WOS:A1994PE56800002 ER PT J AU MIYATA, E TSUNEMI, H PISARSKI, R KISSEL, SE AF MIYATA, E TSUNEMI, H PISARSKI, R KISSEL, SE TI THE PLASMA STRUCTURE OF THE NORTHEAST RIM OF THE CYGNUS LOOP AS OBSERVED WITH ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE ISM, INDIVIDUAL OBJECTS (CYGNUS LOOP); ISM, SUPERNOVA REMNANTS; SHOCK WAVES; X-RAYS, SPECTRA ID X-RAY-EMISSION; EINSTEIN OBSERVATIONS; SUPERNOVA-REMNANTS AB We present the first results from ASCA observations of the Cygnus Loop. A 22'; square of the north-east rim was observed. The imaging capability of ASCA permits clear identification of the shock front structure. The energy resolving power of ASCA in the energy band between 0.5 keV to 10 keV reveals several emission lines from oxygen to silicon. The intensity ratio between the O VIII and O VII emission lines demonstrates that the plasma has not reached collisional ionization equilibrium. A nonequilibrium ionization model is applied to determine the gradients both in electron temperature, T(e), and in electron density, n(e). T(e) ranges from 0.22 keV at the shock front to 0.30 keV at 17' inside the shock front. n(e) can be represented as a power law function of radius with an index of about 6 at an ambient gas density of 0.5 cm-3 . The plasma parameter, n(e)t, is about 2 x 10(11) cm-3 s, resulting in an age of about 20000 yr for the Loop. C1 NASA,GODDARD SPACE FLIGHT CTR,ASTROPHYS DATA FACIL,GREENBELT,MD 20771. MIT,DEPT PHYS,CAMBRIDGE,MA 02139. MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. RP MIYATA, E (reprint author), OSAKA UNIV,FAC SCI,DEPT EARTH & SPACE SCI,1-1 MACHIKANEYAMA CHO,TOYONAKA,OSAKA 560,JAPAN. NR 19 TC 49 Z9 49 U1 0 U2 1 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L101 EP & PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400013 ER PT J AU MUKAI, K ISHIDA, M OSBORNE, JP AF MUKAI, K ISHIDA, M OSBORNE, JP TI THE ASCA PV PHASE OBSERVATION OF FO AQUARII SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE STARS, CATACLYSMIC VARIABLES; STARS, INDIVIDUAL (FO AQR=H2215-086); X-RAYS, BINARIES ID H2215-086; AQR AB We report on a approximate 1-day ASCA observation of the intermediate polar FO Aquarii. We find two distinctive spectral components, one unabsorbed and the other strongly absorbed; the observed 2-10 keV flux severely underestimates the total system luminosity, due to this strong absorption intrinsic to the binary. The absorbed component is dominant in terms of luminosity, and its light curve is simple. The unabsorbed component accounts for approximately 2% of the luminosity, and shows a much more complicated light curve. As the dominant component predominantly shows a sinusoidal modulation at the white dwarf spin period, it provides a strong evidence for a partial accretion disk in the system. C1 INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. UNIV LEICESTER,DEPT PHYS & ASTRON,LEICESTER LE1 7RH,ENGLAND. RP MUKAI, K (reprint author), NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,CODE 668,GREENBELT,MD 20771, USA. NR 10 TC 16 Z9 16 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L87 EP L91 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400010 ER PT J AU PETRE, R OKADA, K MIHARA, T MAKISHIMA, K COLBERT, EJM AF PETRE, R OKADA, K MIHARA, T MAKISHIMA, K COLBERT, EJM TI THE BROAD-BAND X-RAY-SPECTRUM OF SN-1978K AND 2 OTHER LUMINOUS X-RAY SOURCES IN THE SPIRAL GALAXY NGC-1313 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, INDIVIDUAL (NGC-1313); ISM, SUPERNOVA REMNANTS; STARS, SUPERNOVAE, INDIVIDUAL (SN-1978K); X-RAYS, GALAXIES; X-RAYS, SPECTRA ID NUCLEUS; M81 AB We present preliminary results of our analysis of the ASCA PV phase observation of the nearby spiral galaxy NGC 1313. ASCA cleanly resolves the three previously known luminous sources, one of which is the very luminous supernova, SN 1978k. The spectrum of SN 1978k is described by either a power law with a photon index GAMMA approximately 2.2 or a thermal model with temperature kT approximately 3.0 keV and abundances Z approximately 0.2 Z.. There is no evidence for strong line emission from it or from the other two sources. The spectrum of SN 1978k arises either in shocked gas in extreme departure from ionization equilibrium or from synchrotron processes associated with a newborn pulsar. A second source, near the galactic center, is well-fit by a power-law with a photon index of approximately 1.8. It is possibly an active nucleus-like source, but physically displaced from the optical nucleus of the galaxy. The spectrum of the third source, located 8 kpc south of the nucleus, along with the absence of an optical counterpart, suggests that it is a low-mass X-ray binary; but its high X-ray luminosity clouds this interpretation. This observation demonstrates the ability of ASCA to perform effective broad band spectroscopic measurements of sources at a 2-10 keV flux level of 5 X 10(-13) erg cm-2 s-1. C1 UNIV TOKYO,SCH SCI,DEPT PHYS,BUNKYO KU,TOKYO 113,JAPAN. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. INST PHYS & CHEM RES,WAKO,SAITAMA 35101,JAPAN. UNIV MARYLAND,DEPT ASTRON,COLL PK,MD 20742. RP PETRE, R (reprint author), NASA,GSFC,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771, USA. RI Mihara, Tatehiro/C-5536-2017 OI Mihara, Tatehiro/0000-0002-6337-7943 NR 12 TC 37 Z9 37 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L115 EP L120 PG 6 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400016 ER PT J AU SERLEMITSOS, P YAQOOB, T RICKER, G WOO, J KUNIEDA, H TERASHIMA, Y IWASAWA, K AF SERLEMITSOS, P YAQOOB, T RICKER, G WOO, J KUNIEDA, H TERASHIMA, Y IWASAWA, K TI THE COMPLEX-X-RAY SPECTRA OF 2 HIGH-REDSHIFT QUASARS OBSERVED WITH ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE QUASARS, INDIVIDUAL (PKS-0438-436, PKS-2126-158); X-RAYS, GALAXIES ID ABSORPTION; REFLECTION AB We report preliminary results of ASCA observations of two high-redshift quasars (z approximately 3), PKS 0438-436 and PKS 2126-158. We find spectral flattening towards low energies in both sources, first found with ROSAT and interpreted as being due to excess X-ray absorption. However, the ROSAT data lacked the bandpass and sensitivity to unambiguously support this interpretation: We find that for PKS 2126-158, absorption in intervening low-redshift material along the line-of-sight provides a statistically better description of the data than absorption in material intrinsic to the quasar. The redshift of the putative absorber is required to be less than a few tenths. Given the redshift constraints and the fact that absorption is not common in lower redshift quasars, this result is not easily explained by a simple model. Either the absorber may be complex or else the intrinsic X-ray spectrum may be complex, or both. Compton-reflection dominated models are ruled out but a broken power-law model provides good fits to the data without requiring excess absorption. The break energy is at approximately 6-8 keV in the quasar frame and the energy index of the soft component is required to be extremely flat. This may mean that the X-ray emission in these objects is dominated by synchrotron losses as in BL Lac objects. C1 INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. NAGOYA UNIV,SCH SCI,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. RP SERLEMITSOS, P (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 666,GREENBELT,MD 20771, USA. NR 21 TC 24 Z9 24 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L43 EP L47 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400002 ER PT J AU TANAKA, Y INOUE, H HOLT, SS AF TANAKA, Y INOUE, H HOLT, SS TI THE X-RAY ASTRONOMY SATELLITE ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE INSTRUMENTATION; SPACECRAFTS; X-RAYS, GENERAL AB ASCA is a high-throughput X-ray astronomy observatory which is capable of simultaneous imaging and spectroscopic observations over a wide energy range 0.5-10 keV. The scientific capabilities of ASCA and some aspects related to its operation and observations axe briefly described. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP TANAKA, Y (reprint author), INST SPACE & ASTRONAUT SCI,3-1-1 YOSHINODAI,SAGAMIHARA,KANAGAWA 229,JAPAN. NR 3 TC 439 Z9 439 U1 0 U2 5 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L37 EP & PG 0 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400001 ER PT J AU UENO, S MUSHOTZKY, RF KOYAMA, K IWASAWA, K AWAKI, H HAYASHI, I AF UENO, S MUSHOTZKY, RF KOYAMA, K IWASAWA, K AWAKI, H HAYASHI, I TI ASCA OBSERVATIONS OF NGC-1068 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE GALAXIES, INDIVIDUAL (NGC-1068); GALAXIES, SEYFERT-II; X-RAYS, SPECTRA ID X-RAY-SPECTRUM; ACTIVE GALACTIC NUCLEI; SEYFERT-GALAXIES AB With the high sensitivity and spectral resolution of the ASCA satellite, we have discovered strong emission lines from the H-like and/or He-like ions of Ne, Mg, Si, and S as well as Fe L and confirmed the complex structure of Fe K line emission in the Seyfert II galaxy NGC 1068. The continuum emission above 3 keV exhibits rather flat shape with no evidence of low energy absorption. The overall X-ray spectrum can be well explained with a model involving starburst activity plus an obscured active galactic nucleus. C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. NAGOYA UNIV,SCH SCI,DEPT ASTROPHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. RP UENO, S (reprint author), KYOTO UNIV,FAC SCI,DEPT PHYS,SAKYO KU,KYOTO 60601,JAPAN. NR 15 TC 85 Z9 85 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L71 EP L75 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400007 ER PT J AU YAQOOB, T SERLEMITSOS, P MUSHOTZKY, R RICKER, G WOO, J WEAVER, K KII, T MITSUDA, K KOTANI, T HAYASHIDA, K MURAKAMI, S TASHIRO, M AF YAQOOB, T SERLEMITSOS, P MUSHOTZKY, R RICKER, G WOO, J WEAVER, K KII, T MITSUDA, K KOTANI, T HAYASHIDA, K MURAKAMI, S TASHIRO, M TI THE X-RAY-EMISSION OF 3C-273 OBSERVED WITH ASCA SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Article DE QUASARS, INDIVIDUAL (3C-273); X-RAYS, ACTIVE GALAXIES; X-RAYS, GENERAL ID ACTIVE GALACTIC NUCLEI; COLD MATTER; COMPTON REFLECTION; SEYFERT-1 GALAXIES; VARIABILITY; ABSORPTION; SPECTRUM; PAIRS AB We report preliminary results of an ASCA observation of 3C 273. There is no spectral variability within the ASCA observation, in contrast to the longer term behavior found with EXOSAT and Ginga which established significant changes in the spectral index of the power-law continuum on timescales of a week or more, uncorrelated with luminosity. Comparison of the ASCA data with a simultaneous ROSAT/Ginga observation in 1990 December shows that while the shape of the spectrum above approximately 1 keV is essentially the same, the flux in the soft component, below approximately 1 keV, is considerably weaker relative to the hard component in the ASCA observation. The 2-10 keV luminosity is at least a factor of approximately 1.5 greater in the ASCA observation than in the ROSAT/Ginga observation whilst the ratio of 2-10 keV luminosity to 0.4-1.0 keV luminosity increases by a factor of approximately 1.2. Thus the spectral shape of the hard component appears to be independent of the relative magnitude of the soft component and is an important constraint on emission and reprocessing models. We find no significant Fe K line-emission in this observation. The data also highlight very well some of the outstanding problems in the instrumental responses. C1 MIT,CTR SPACE RES,CAMBRIDGE,MA 02139. PENN STATE UNIV,DEPT ASTRON,DAVEY LAB 525,UNIV PK,PA 16802. INST SPACE & ASTRONAUT SCI,SAGAMIHARA,KANAGAWA 229,JAPAN. UNIV OSAKA,FAC SCI,DEPT PHYS,TOYONAKA,OSAKA 560,JAPAN. OSAKA CITY UNIV,DEPT PHYS,COSM RAYS LAB,OSAKA,OSAKA 558,JAPAN. UNIV TOKYO,FAC SCI,DEPT ASTRON,TOKYO 113,JAPAN. RP YAQOOB, T (reprint author), NASA,GODDARD SPACE FLIGHT CTR,CODE 666,GREENBELT,MD 20771, USA. RI Mitsuda, Kazuhisa/C-2649-2008; Tashiro, Makoto/J-4562-2012 NR 20 TC 27 Z9 27 U1 0 U2 1 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 3 BP L49 EP L53 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA NV124 UT WOS:A1994NV12400003 ER PT J AU YAQOOB, T SERLEMITSOS, P MUSHOTZKY, R MADEJSKI, G TURNER, TJ KUNIEDA, H AF YAQOOB, T SERLEMITSOS, P MUSHOTZKY, R MADEJSKI, G TURNER, TJ KUNIEDA, H TI X-RAY-SPECTRUM AND VARIABILITY OF THE QUASAR PG 1211+143 SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN LA English DT Letter DE QUASARS INDIVIDUAL (PG1211+143); X-RAYS; GALAXIES; X-RAYS SPECTRA ID ACTIVE GALACTIC NUCLEI; EMISSION; AGN; GALAXIES AB We present preliminary results of an ASCA observation of the classic soft-excess quasar PG 1211+143. The overall ASCA spectrum can be characterized by a blackbody with a temperature of approximately 125 eV (quasar frame) and a power law with photon index approximately 2. Simultaneous ROSAT data are suggestive of further steepening of the spectrum just below the ASCA band. Comparison with previous observations shows that the soft flux in the 0.1-2 keV band varies by at least a factor of approximately, 16 scaling roughly as the square of the hard flux in the 2-10 keV band over a timescale of approximately 13.5 yr. We also find evidence of short-term amplitude variability of up to a factor approximately 2 on a timescale of approximately 2 x 10(4) s, in both the soft and hard flux so that the soft and hard photons are likely to originate from the same, compact, region. The data rule out variable absorption (cold or ionized) as the origin of the soft excess, favoring an intrinsic emission component. However, we argue against optically thin emission for the 'blue bump' in PG 1211+143. The large amplitude soft X-ray variability may be indicative of variations in the effective temperature, or peak, of the soft component. There is only marginal evidence for Fe K line emission between 6-7 keV in the quasar frame. C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NAGOYA UNIV,SCH SCI,DEPT PHYS,CHIKUSA KU,NAGOYA 46401,JAPAN. NR 21 TC 18 Z9 18 U1 0 U2 0 PU ASTRONOMICAL SOC JAPAN PI TOKYO PA C/O NATIONAL ASTRONOM OBSERV MITAKA-SHI, TOKYO 181, JAPAN SN 0004-6264 J9 PUBL ASTRON SOC JPN JI Publ. Astron. Soc. Jpn. PY 1994 VL 46 IS 5 BP L173 EP L177 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA PN914 UT WOS:A1994PN91400002 ER PT J AU FEIBELMAN, WA AF FEIBELMAN, WA TI ON PLANETARY-NEBULA NUCLEI OF THE SPECTRAL TYPE CONTINUOUS SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article ID FE-VII ABSORPTION; CENTRAL STARS; LINES AB A detailed reexamination of existing and new IUE low- and high-resolution spectra, plus a search of recent literature, shows that for most of the central stars of planetary nebulae the spectral classification previously called ''continuous-type'' does not really exist. The stellar continua show primarily photospheric absorption features of N V, O V, C IV, H, He II, Fe VII, Fe VI, and Fe V, and/or P Cygni profiles. RP FEIBELMAN, WA (reprint author), NASA,GODDARD SPACE FLIGHT CTR,ASTRON & SOLAR PHYS LAB,CODE 6841,GREENBELT,MD 20771, USA. NR 26 TC 8 Z9 8 U1 0 U2 0 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD JAN PY 1994 VL 106 IS 695 BP 56 EP 58 DI 10.1086/133341 PG 3 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA MU255 UT WOS:A1994MU25500005 ER PT J AU MADORE, BF SUN, H BENNETT, J CORWIN, HG HELOU, G LAGUE, C SCHMITZ, M WU, X AF MADORE, BF SUN, H BENNETT, J CORWIN, HG HELOU, G LAGUE, C SCHMITZ, M WU, X TI REVISED SIZES AND POSITIONS FOR THE MAILYAN DWARF GALAXY CATALOG SO PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC LA English DT Article AB New positions (good to +/- 15 arcsec), revised sizes, and sample cross-identification are presented for dwarf galaxies discovered and published by Mailyan (1973, Astrofizika, 9, 33). Of the 104 originally cataloged galaxies we were able to recover only 100, despite an extensive search of the red and blue POSS prints. Over half of the recovered objects were found to correspond to previously cataloged galaxies; few if any of these are dwarf spheriodal galaxies, but rather mostly dwarf irregulars of low surface brightness. RP MADORE, BF (reprint author), CALTECH,JET PROP LAB,CTR INFRARED ANAL & PROC,NASA,IPAC EXTRAGALACT DATABASE,PASADENA,CA 91125, USA. NR 3 TC 3 Z9 3 U1 0 U2 1 PU ASTRONOMICAL SOC PACIFIC PI SAN FRANCISCO PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 SN 0004-6280 J9 PUBL ASTRON SOC PAC JI Publ. Astron. Soc. Pac. PD JAN PY 1994 VL 106 IS 695 BP 63 EP 66 DI 10.1086/133343 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA MU255 UT WOS:A1994MU25500007 ER PT S AU NORTON, AJ COE, MJ EVERALL, C ROCHE, P BILDSTEN, L CHAKRABARTY, D PRINCE, TA STOLLBERG, MT WILSON, RB AF NORTON, AJ COE, MJ EVERALL, C ROCHE, P BILDSTEN, L CHAKRABARTY, D PRINCE, TA STOLLBERG, MT WILSON, RB BE Balona, LA Henrichs, HF LeContel, JM TI MULTIWAVELENGTH OBSERVATIONS OF THE BE-STAR X-RAY BINARY EXO2030+375 DURING OUTBURST SO PULSATION, ROTATION AND MASS LOSS IN EARLY-TYPE STARS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 162nd Symposium of the International Astronomical Union - Pulsation, Rotation and Mass Loss in Early-Type Stars CY OCT 05-08, 1993 CL ANTIBES JUAN LES PINS, FRANCE SP INT ASTRON UNION ID EXO-2030+375 C1 UNIV SOUTHAMPTON,ASTRON & SPACE PHYS GRP,SOUTHAMPTON SO9 5NH,HANTS,ENGLAND. CALTECH,DIV PHYS MATH & ASTRON,PASADENA,CA 91125. UNIV ALABAMA,DEPT PHYS,HUNTSVILLE,AL 35809. NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,SPACE SCI LAB,HUNTSVILLE,AL 35812. RP NORTON, AJ (reprint author), OPEN UNIV,DEPT PHYS,WALTON HALL,MILTON KEYNES MK7 6AA,BUCKS,ENGLAND. NR 3 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 0-7923-3044-7 J9 IAU SYMP PY 1994 IS 162 BP 206 EP 207 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB75K UT WOS:A1994BB75K00053 ER PT S AU SMITH, MA HUBENY, I LANZ, T AF SMITH, MA HUBENY, I LANZ, T BE Balona, LA Henrichs, HF LeContel, JM TI PUZZLING PROBLEMS OF HE-I LINE FORMATION IN EARLY B-STARS SO PULSATION, ROTATION AND MASS LOSS IN EARLY-TYPE STARS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 162nd Symposium of the International Astronomical Union - Pulsation, Rotation and Mass Loss in Early-Type Stars CY OCT 05-08, 1993 CL ANTIBES JUAN LES PINS, FRANCE SP INT ASTRON UNION ID STELLAR ATMOSPHERES C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RP SMITH, MA (reprint author), IUE,CSC OBSERV,10000A AEROSPACE RD,LANHAM,MD 20706, USA. 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 0-7923-3044-7 J9 IAU SYMP PY 1994 IS 162 BP 273 EP 274 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB75K UT WOS:A1994BB75K00072 ER PT S AU ROUNTREE, J SONNEBORN, G AF ROUNTREE, J SONNEBORN, G BE Balona, LA Henrichs, HF LeContel, JM TI BE STARS IN THE ULTRAVIOLET SPECTRAL CLASSIFICATION-SYSTEM SO PULSATION, ROTATION AND MASS LOSS IN EARLY-TYPE STARS SE IAU SYMPOSIA LA English DT Article; Proceedings Paper CT 162nd Symposium of the International Astronomical Union - Pulsation, Rotation and Mass Loss in Early-Type Stars CY OCT 05-08, 1993 CL ANTIBES JUAN LES PINS, FRANCE SP INT ASTRON UNION C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD. RP ROUNTREE, J (reprint author), SCI APPLICAT INT CORP,TUCSON,AZ, USA. NR 3 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 0-7923-3044-7 J9 IAU SYMP PY 1994 IS 162 BP 275 EP 276 PG 2 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BB75K UT WOS:A1994BB75K00073 ER PT B AU Moreau, TJ AF Moreau, TJ BE Sylvia, G Shriver, AL Morrissey, MT TI Evolving international inspection standards and impacts on US seafood trade SO QUALITY CONTROL & QUALITY ASSURANCE FOR SEAFOOD LA English DT Proceedings Paper CT Conference on Quality Control and Quality Assurance for Seafood CY MAY 16-18, 1993 CL NEWPORT, OR SP Pacific NW Seafood Assoc, Oregon Econ Dev Dept C1 NATL MARINE FISHERIES SERV,INSPECT SERV DIV,GLOUCESTER,MA 01930. NR 0 TC 0 Z9 0 U1 0 U2 0 PU OREGON SEA GRANT PI CORVALLIS PA OREGON STATE UNIVERSITY ADMINISTRATIVE SERVICES A402, CORVALLIS, OR 97331-2134 BN 1-881826-08-2 PY 1994 BP 31 EP 34 PG 4 WC Fisheries; Food Science & Technology SC Fisheries; Food Science & Technology GA BE54H UT WOS:A1994BE54H00005 ER PT S AU LEVINE, ER KNOX, RG AF LEVINE, ER KNOX, RG BE Bryant, RB Arnold, RW TI A COMPREHENSIVE FRAMEWORK FOR MODELING SOIL GENESIS SO QUANTITATIVE MODELING OF SOIL FORMING PROCESSES SE SSSA SPECIAL PUBLICATIONS LA English DT Proceedings Paper CT Symposium on Quantitative Modeling of Soil Forming Processes CY NOV 02, 1992 CL MINNEAPOLIS, MN SP SOIL SCI SOC AMER, DIV S 5, SOIL SCI SOC AMER, DIV S 9 C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Knox, Robert/E-9657-2011 NR 0 TC 1 Z9 1 U1 0 U2 0 PU SOIL SCIENCE SOC AMER PI MADISON PA 677 S SEGOE RD, MADISON, WI 53711 SN 0081-1904 BN 0-89118-814-2 J9 SSSA SPEC PUBL PY 1994 IS 39 BP 77 EP 89 PG 13 WC Computer Science, Interdisciplinary Applications; Geosciences, Multidisciplinary; Mathematics, Applied; Soil Science SC Computer Science; Geology; Mathematics; Agriculture GA BC82X UT WOS:A1994BC82X00005 ER PT S AU GUNAPALA, SD LIU, JK PARK, JS LIN, TL AF GUNAPALA, SD LIU, JK PARK, JS LIN, TL BE Liu, HC Levine, BF Andersson, JY TI 16 mu M INFRARED HOT ELECTRON TRANSISTOR SO QUANTUM WELL INTERSUBBAND TRANSITION PHYSICS AND DEVICES SE NATO ADVANCED SCIENCE INSTITUTES SERIES, SERIES E, APPLIED SCIENCES LA English DT Proceedings Paper CT NATO Advanced Research Workshop on Quantum Well Intersubband Transition Physics and Devices CY SEP 07-10, 1993 CL WHISTLER, CANADA SP NATO, SCI AFFAIRS DIV, NATL RES COUNCIL CANADA, INST MICROSTRUCT SCI C1 JET PROP LAB,CTR SPACE MICROELECTR TECHNOL,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 SN 0168-132X BN 0-7923-2877-9 J9 NATO ADV SCI INST SE PY 1994 VL 270 BP 167 EP 176 PG 10 WC Physics, Applied; Physics, Nuclear SC Physics GA BC02U UT WOS:A1994BC02U00013 ER PT J AU GOLIGHTLY, MJ HARDY, K QUAM, W AF GOLIGHTLY, MJ HARDY, K QUAM, W TI RADIATION-DOSIMETRY MEASUREMENTS DURING US SPACE-SHUTTLE MISSIONS WITH THE RME-III SO RADIATION MEASUREMENTS LA English DT Article ID QUALITY FACTOR AB Time-resolved radiation dosimetry measurements inside the crew compartment have been made during recent Shuttle missions with the U.S. Air Force Radiation Monitoring Equipment-III (RME-III), a portable battery-powered four-channel tissue equivalent proportional counter. Results from the first six missions are presented and discussed. Half of the missions had orbital inclinations of 28.5 degrees with the remainder at inclinations of 57 degrees or greater; altitudes ranged from 300 to 600 km. The determined dose equivalent rates ranged from 70 to 5300 mu S nu/day. The RME-III measurements are in good agreement with other dosimetry measurements made aboard the vehicles. Measurements indicate that medium- and high-LET particles contribute less than 2% of the particle fluence for all missions, but up to 50% of the dose equivalent, depending on the spacecraft's altitude and orbital inclination. Isocontours of fluence, dose and dose equivalent rate have been developed from measurements made during the STS-28 mission. The drift rate of the South Atlantic Anomaly is estimated to be 0.49 degrees W/yr and 0.12 degrees N/yr. The calculated trapped proton and GCR dose for the STS-28 mission was significantly lower than the measured values. C1 EG&G ENERGY MEASUREMENTS INC,GOLETA,CA 93117. USAF,ARMSTRONG LAB,OEBD,SAN ANTONIO,TX 78235. RP GOLIGHTLY, MJ (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,SN31,HOUSTON,TX 77058, USA. NR 26 TC 22 Z9 22 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 1350-4487 J9 RADIAT MEAS JI Radiat. Meas. PD JAN PY 1994 VL 23 IS 1 BP 25 EP 42 DI 10.1016/1350-4487(94)90020-5 PG 18 WC Nuclear Science & Technology SC Nuclear Science & Technology GA PW335 UT WOS:A1994PW33500004 PM 11538011 ER PT J AU SHINN, JL WILSON, JW BADAVI, FF BENTON, EV CSIGE, I FRANK, AL BENTON, ER AF SHINN, JL WILSON, JW BADAVI, FF BENTON, EV CSIGE, I FRANK, AL BENTON, ER TI HZE BEAM TRANSPORT IN MULTILAYERED MATERIALS SO RADIATION MEASUREMENTS LA English DT Article ID MODEL AB A nonperturbative analytic solution of the high charge and energy (HZE) Green's function is used to implement a computer code for laboratory ion beam transport in multiple-layered materials. The code is established to operate on the Langley nuclear fragmentation model used in space engineering applications. Computational procedures are established to generate linear energy transfer (LET) distributions for a specified ion beam and target for comparison with experimental measurement. Comparison with Fe-56 ion with Pb-Al and Pb-(CH2)(x) targets shows reasonable agreement. C1 CHRISTOPHER NEWPORT UNIV,NEWPORT NEWS,VA 23601. UNIV SAN FRANCISCO,SAN FRANCISCO,CA 94117. ATOMKI,INST NUCL RES,H-4001 DEBRECEN,HUNGARY. RP SHINN, JL (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 23 TC 9 Z9 9 U1 0 U2 0 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 1350-4487 J9 RADIAT MEAS JI Radiat. Meas. PD JAN PY 1994 VL 23 IS 1 BP 57 EP 64 DI 10.1016/1350-4487(94)90024-8 PG 8 WC Nuclear Science & Technology SC Nuclear Science & Technology GA PW335 UT WOS:A1994PW33500008 PM 11538017 ER PT J AU FLEETWOOD, DM WINOKUR, PS BARNES, CE SHAW, DC AF FLEETWOOD, DM WINOKUR, PS BARNES, CE SHAW, DC TI ACCOUNTING FOR TIME-DEPENDENT EFFECTS ON CMOS TOTAL-DOSE RESPONSE IN-SPACE ENVIRONMENTS SO RADIATION PHYSICS AND CHEMISTRY LA English DT Article ID INTEGRATED-CIRCUITS; IONIZING-RADIATION; IRRADIATION; TRANSISTORS; ELECTRONICS; MECHANISMS; DEVICES; NUCLEAR AB Time-dependent charge buildup and annealing processes cause the ionizing radiation response of CMOS devices and circuits to depend strongly on the dose rate of the exposure. Oxide-trap charge annealing and interface-trap buildup in nMOS transistors can lead to positive threshold voltage shifts in a space environment, while negative threshold voltage shifts are commonly observed after irradiations at typical laboratory dose rates [50-300 rad(Si)/s]. Thus, devices that pass laboratory testing can fail at the low dose rates encountered in space due to positive nMOS transistor threshold-voltage shifts above preirradiation values, i.e. ''rebound''. We summarize how this issue can be addressed in total-dose hardness assurance test methods for space. An example of such a guideline is the revised U.S. military-standard ionizing-radiation-effects test method (MIL-STD 883D, Test Method 1019.4). C1 JET PROP LAB,PASADENA,CA 91109. RP FLEETWOOD, DM (reprint author), SANDIA NATL LABS,DEPT 1332,ALBUQUERQUE,NM 87185, USA. NR 22 TC 20 Z9 20 U1 0 U2 4 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0146-5724 J9 RADIAT PHYS CHEM JI Radiat. Phys. Chem. PD JAN-FEB PY 1994 VL 43 IS 1-2 BP 129 EP 138 DI 10.1016/0969-806X(94)90206-2 PG 10 WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic, Molecular & Chemical SC Chemistry; Nuclear Science & Technology; Physics GA LV746 UT WOS:A1994LV74600010 ER PT J AU CUCINOTTA, FA WILSON, JW KATZ, R AF CUCINOTTA, FA WILSON, JW KATZ, R TI RADIOSENSITIVITY PARAMETERS FOR LETHAL MUTAGENESIS IN CAENORHABDITIS-ELEGANS SO RADIATION PROTECTION DOSIMETRY LA English DT Article AB For the first time track structure theory has been applied to radiobiological effects in a living organism. Data for lethal mutagenesis in Caenorhabditis elegans, obtained after irradiation with nine different types of ions of atomic number 1-57 and gamma rays have yielded radiosensitivity parameters (E0, sigma0, kappa, m = 68 Gy, 2,5 x 10(-9) cm2, 750, 2) comparable with those found for the transformation of C3HT10 1/2 cells (180 Gy, 1.15 x 10(-10) cm2, 750, 2) but remote from those (E(o) and sigma(o) = almost-equal-to 2 Gy, almost-equal-to 5 x 10(-7) cm2) for mammalian cell survival. RP CUCINOTTA, FA (reprint author), NASA,LANGLEY RES CTR,HAMPTON,VA 23681, USA. NR 0 TC 1 Z9 1 U1 0 U2 0 PU NUCLEAR TECHNOLOGY PUBL PI ASHFORD PA PO BOX 7, ASHFORD, KENT, ENGLAND TN23 1YW SN 0144-8420 J9 RADIAT PROT DOSIM JI Radiat. Prot. Dosim. PY 1994 VL 52 IS 1-4 BP 25 EP 27 PG 3 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA NG592 UT WOS:A1994NG59200007 PM 11537891 ER PT J AU BADHWAR, GD KONRADI, A BRABY, LA ATWELL, W CUCINOTTA, FA AF BADHWAR, GD KONRADI, A BRABY, LA ATWELL, W CUCINOTTA, FA TI MEASUREMENTS OF TRAPPED PROTONS AND COSMIC-RAYS FROM RECENT SHUTTLE FLIGHTS SO RADIATION PROTECTION DOSIMETRY LA English DT Article AB Two new charged particle detectors have been flown in five recent Shuttle flights. The tissue-equivalent proportional counter measures the lineal energy spectrum of space radiation in the 0.26-300 keV.mum-1 range. The charged particle spectrometer is a double dE/dx x E and dE/dx x Cherenkov detector system which provides a measurement of the differential energy spectrum of protons from 13 to 350 MeV and dose rate in silicon. In this paper the dose rate, equivalent dose rate, and radiation, quality factor for trapped protons and cosmic radiation are reported on separately. A comparison of the integral LET spectra with recent transport code calculations shows significant disagreement. Using the calculated dose rate from the omnidirectional AP8MAX model with IGRF reference magnetic field epoch 1970, and observed dose rate as a function of geographic latitude and longitude, the westward drift of the south Atlantic anomaly has been determined. Th;e east-west effect has also been studied and a 'second' radiation belt observed. A comparison of the galactic cosmic radiation (GCR) lineal energy transfer spectra with model calculations shows disagreement comparable with those of the trapped protons. RP BADHWAR, GD (reprint author), NASA,LYNDON B JOHNSON SPACE CTR,HOUSTON,TX 77058, USA. NR 0 TC 0 Z9 0 U1 0 U2 1 PU NUCLEAR TECHNOLOGY PUBL PI ASHFORD PA PO BOX 7, ASHFORD, KENT, ENGLAND TN23 1YW SN 0144-8420 J9 RADIAT PROT DOSIM JI Radiat. Prot. Dosim. PY 1994 VL 52 IS 1-4 BP 439 EP 445 PG 7 WC Environmental Sciences; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical Imaging GA NG592 UT WOS:A1994NG59200083 PM 11537893 ER PT J AU YUEH, SH NGHIEM, SV KWOK, R WILSON, WJ LI, FK JOHNSON, JT KONG, JA AF YUEH, SH NGHIEM, SV KWOK, R WILSON, WJ LI, FK JOHNSON, JT KONG, JA TI POLARIMETRIC THERMAL EMISSION FROM PERIODIC WATER SURFACES SO RADIO SCIENCE LA English DT Article ID MICROWAVE AB In this paper, experimental results and theoretical calculations are presented to study the polarimetric emission from water surfaces with directional features. It is observed that the measured Stokes parameters of corrugated fiberglass-covered water surfaces are functions of azimuth angles and agree very well with theoretical calculations. The theory, after being verified by the experimental data, was then used to calculate the Stokes parameters of periodic surfaces without fiberglass surface layer and with rms height of the order of wind-generated water ripples. The magnitudes of the azimuthal variation of the calculated emissivities at horizontal and vertical polarizations corresponding to the first two Stokes parameters are found to be comparable to the values measured by airborne radiometer and SSM/I. In addition, the third Stokes parameter not shown in the literature is seen to have approximately twice the magnitude of the azimuth variation of either T(h) or T(v). The results of this paper indicate that passive polarimetry is a potential tool in the remote sensing of ocean wind vector. C1 MIT,DEPT ELECT ENGN & COMP SCI,CAMBRIDGE,MA 02139. MIT,ELECTR RES LAB,CAMBRIDGE,MA 02139. RP YUEH, SH (reprint author), JET PROP LAB,4800 OAK GROVE DR,PASADENA,CA 91109, USA. RI Kwok, Ron/A-9762-2008 OI Kwok, Ron/0000-0003-4051-5896 NR 14 TC 12 Z9 16 U1 1 U2 4 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 SN 0048-6604 J9 RADIO SCI JI Radio Sci. PD JAN-FEB PY 1994 VL 29 IS 1 BP 87 EP 96 DI 10.1029/93RS01827 PG 10 WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology & Atmospheric Sciences; Remote Sensing; Telecommunications GA MW581 UT WOS:A1994MW58100007 ER PT S AU LYONS, DT HURLBUT, FC AF LYONS, DT HURLBUT, FC BE Shizgal, BD Weaver, DP TI MEASURING LIFT COEFFICIENT IN FREE MOLECULAR-FLOW WHILE AEROBRAKING MAGELLAN SO RAREFIED GAS DYNAMICS: SPACE SCIENCE AND ENGINEERING SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 JET PROP LAB,PASADENA,CA 91109. NR 0 TC 1 Z9 1 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-081-0 J9 PROGR ASTRONAUT AERO PY 1994 VL 160 BP 53 EP 63 PG 11 WC Engineering, Aerospace; Physics, Fluids & Plasmas SC Engineering; Physics GA BB67W UT WOS:A1994BB67W00006 ER PT S AU MOSS, JN RAULT, DFG PRICE, JM AF MOSS, JN RAULT, DFG PRICE, JM BE Shizgal, BD Weaver, DP TI DIRECT MONTE-CARLO SIMULATIONS OF HYPERSONIC VISCOUS INTERACTIONS INCLUDING SEPARATION SO RAREFIED GAS DYNAMICS: SPACE SCIENCE AND ENGINEERING SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-081-0 J9 PROGR ASTRONAUT AERO PY 1994 VL 160 BP 209 EP 220 PG 12 WC Engineering, Aerospace; Physics, Fluids & Plasmas SC Engineering; Physics GA BB67W UT WOS:A1994BB67W00020 ER PT S AU CARLSON, AB WILMOTH, RG AF CARLSON, AB WILMOTH, RG BE Shizgal, BD Weaver, DP TI DIRECT SIMULATION OF A HYPERSONIC SHOCK INTERACTION PROBLEM SO RAREFIED GAS DYNAMICS: SPACE SCIENCE AND ENGINEERING SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-081-0 J9 PROGR ASTRONAUT AERO PY 1994 VL 160 BP 253 EP 260 PG 8 WC Engineering, Aerospace; Physics, Fluids & Plasmas SC Engineering; Physics GA BB67W UT WOS:A1994BB67W00025 ER PT S AU PETERS, PN WHITEHOUSE, PL GREGORY, JC AF PETERS, PN WHITEHOUSE, PL GREGORY, JC BE Shizgal, BD Weaver, DP TI SATELLITE ATTITUDE STABILITY MEASUREMENTS USING A GAS-DYNAMICS PINHOLE CAMERA SO RAREFIED GAS DYNAMICS: SPACE SCIENCE AND ENGINEERING SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-081-0 J9 PROGR ASTRONAUT AERO PY 1994 VL 160 BP 478 EP 487 PG 10 WC Engineering, Aerospace; Physics, Fluids & Plasmas SC Engineering; Physics GA BB67W UT WOS:A1994BB67W00044 ER PT S AU RAULT, DFG AF RAULT, DFG BE Shizgal, BD Weaver, DP TI EFFICIENT 3-DIMENSIONAL DIRECT SIMULATION MONTE-CARLO FOR COMPLEX-GEOMETRY PROBLEMS SO RAREFIED GAS DYNAMICS: THEORY AND SIMULATIONS SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,LANGLEY RES CTR,DIV SPACE SYST,HAMPTON,VA 23665. NR 0 TC 3 Z9 4 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-080-2 J9 PROGR ASTRONAUT AERO PY 1994 VL 159 BP 137 EP 154 PG 18 WC Engineering, Aerospace; Mechanics; Physics, Fluids & Plasmas SC Engineering; Mechanics; Physics GA BB63Q UT WOS:A1994BB63Q00013 ER PT S AU CHUNG, CH DEWITT, KJ JENG, DR AF CHUNG, CH DEWITT, KJ JENG, DR BE Shizgal, BD Weaver, DP TI DIRECT SIMULATION MONTE-CARLO ANALYSIS OF DETAILED FLOW STRUCTURES IN GAS-MIXTURES SO RAREFIED GAS DYNAMICS: THEORY AND SIMULATIONS SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,LEWIS RES CTR,DIV INTERNAL FLUID MECH,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-080-2 J9 PROGR ASTRONAUT AERO PY 1994 VL 159 BP 243 EP 255 PG 13 WC Engineering, Aerospace; Mechanics; Physics, Fluids & Plasmas SC Engineering; Mechanics; Physics GA BB63Q UT WOS:A1994BB63Q00022 ER PT S AU HWANG, DP AF HWANG, DP BE Shizgal, BD Weaver, DP TI NUMERICAL-SOLUTION OF A 3-DIMENSIONAL CUBIC CAVITY FLOW USING THE BOLTZMANN-EQUATION SO RAREFIED GAS DYNAMICS: THEORY AND SIMULATIONS SE PROGRESS IN ASTRONAUTICS AND AERONAUTICS LA English DT Proceedings Paper CT 18th International Symposium on Rarefied Gas Dynamics CY JUL 26-30, 1992 CL UNIV BRIT COLUMBIA, VANCOUVER, CANADA HO UNIV BRIT COLUMBIA C1 NASA,LEWIS RES CTR,DIV PROPULS SYST,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST AERONAUTICS & ASTRONAUTICS PI WASHINGTON PA 370 L'ENFANT PROMENADE SW, WASHINGTON, DC 20024-2518 SN 0079-6050 BN 1-56347-080-2 J9 PROGR ASTRONAUT AERO PY 1994 VL 159 BP 469 EP 481 PG 13 WC Engineering, Aerospace; Mechanics; Physics, Fluids & Plasmas SC Engineering; Mechanics; Physics GA BB63Q UT WOS:A1994BB63Q00043 ER PT B AU BANNINGER, C JOHNSON, L PETERSON, D AF BANNINGER, C JOHNSON, L PETERSON, D BE Chavez, PS Marino, CM Schowengerdt, RA TI DETERMINATION OF BIOCHEMICAL CHANGES IN CONIFER CANOPIES WITH AIRBORNE VISIBLE INFRARED IMAGING SPECTROMETER (AVIRIS) DATA SO RECENT ADVANCES IN REMOTE SENSING AND HYPERSPECTRAL REMOTE SENSING SE PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE) LA English DT Proceedings Paper CT Conference on Hyperspectral Remote Sensing/Conference on Recent Advances in Remote Sensing CY SEP 27-29, 1994 CL ROME, ITALY SP COMMISS EUROPEAN COMMUNITIES, DIRECTORATE GEN SCI RES & DEV, EUROPEAN OPT SOC, SOC PHOTO OPT INSTRUMENTAT ENGINEERS, CNR, ITALIAN ASSOC REMOTE SENSING 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 0-8194-1648-7 J9 P SOC PHOTO-OPT INS PY 1994 VL 2318 BP 2 EP 9 PG 8 WC Remote Sensing SC Remote Sensing GA BC29A UT WOS:A1994BC29A00001 ER PT B AU AMBROSIA, VG MCKEAN, J AF AMBROSIA, VG MCKEAN, J BE Greer, JD TI Utility of the Electro-Optical Camera (SPECT-T) for assessment of insect drought related forest mortality SO REMOTE SENSING AND ECOSYSTEM MANAGEMENT: PROCEEDINGS OF THE FIFTH FOREST SERVICE REMOTE SENSING APPLICATIONS CONFERENCE LA English DT Proceedings Paper CT 5th Forest Service Remote Sensing Applications Conference on Remote Sensing and Ecosystem Management CY APR 11-15, 1994 CL PORTLAND, OR SP USDA, Forest Serv, Soc Amer Foresters, Remote Sensing Working Grp RP NASA,AMES RES CTR,JOHNSON CONTROLS WORLD SERV INC,M S 242-4,MOFFETT FIELD,CA 94035, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC PHOTOGRAMMETRY & REMOTE SENSING PI BETHESDA PA 5410 GROSVENOR LAND, SUITE 210, BETHESDA, MD 20814-2160 BN 1-57083-010-X PY 1994 BP 268 EP 277 PG 10 WC Ecology; Forestry; Geography SC Environmental Sciences & Ecology; Forestry; Geography GA BD56N UT WOS:A1994BD56N00035 ER PT B AU HALL, FG AF HALL, FG BE Sample, VA TI ADAPTATION OF NASA REMOTE SENSING TECHNOLOGY FOR REGIONAL-LEVEL ANALYSIS OF FORESTED ECOSYSTEMS SO REMOTE SENSING AND GIS IN ECOSYSTEM MANAGEMENT LA English DT Proceedings Paper CT Workshop on Remote Sensing and GIS Ecosystem Management CY OCT 22-23, 1993 CL OAK RIDGE, TN SP AMER FORESTS, FOREST POLICY CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 1 U2 1 PU ISLAND PRESS PI WASHINGTON PA 1718 CONNECTICUT AVE NW, SUITE 300, WASHINGTON, DC 20009 BN 1-55963-284-4 PY 1994 BP 287 EP 313 PG 27 WC Ecology; Forestry SC Environmental Sciences & Ecology; Forestry GA BC24V UT WOS:A1994BC24V00022 ER PT J AU CHAPPELLE, EW LICHTENTHALER, H AF CHAPPELLE, EW LICHTENTHALER, H TI FLUORESCENCE MEASUREMENTS OF VEGETATION - PREFACE SO REMOTE SENSING OF ENVIRONMENT LA English DT Editorial Material C1 UNIV KARLSRUHE,W-7500 KARLSRUHE,GERMANY. RP CHAPPELLE, EW (reprint author), NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771, USA. NR 0 TC 7 Z9 7 U1 0 U2 0 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD JAN PY 1994 VL 47 IS 1 BP 1 EP 1 DI 10.1016/0034-4257(94)90120-1 PG 1 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA NN405 UT WOS:A1994NN40500001 ER PT J AU MCMURTREY, JE CHAPPELLE, EW KIM, MS MEISINGER, JJ CORP, LA AF MCMURTREY, JE CHAPPELLE, EW KIM, MS MEISINGER, JJ CORP, LA TI DISTINGUISHING NITROGEN-FERTILIZATION LEVELS IN-FIELD CORN (ZEA-MAYS L) WITH ACTIVELY INDUCED FLUORESCENCE AND PASSIVE REFLECTANCE MEASUREMENTS SO REMOTE SENSING OF ENVIRONMENT LA English DT Article ID LASER-INDUCED FLUORESCENCE; GREEN PLANTS; CAROTENOIDS; SPECTRA; LEAVES AB Laser-induced fluorescence (LIF) is an active sensing technique capable of capturing immediate and specific indications of changes in plant physiology and metabolism as they relate to the concentration and photosynthetic activity of the plant pigments. Reflectance is a passive sensing technique that can capture differences in the concentration of the primary plant pigments. Fluorescence and reflectance were compared for their ability to measure levels of plant stress that are of agronomic importance in corn (Zea mays L.) crops. Laboratory LIF and reflectance spectra were made on excised leaves from field grown corn. Changes in the visible region of the spectrum were compared between groups of plants fertilized with seven different levels of nitrogen (N) fertilization. A pulsed nitrogen laser emitting photons at a wavelength of 337 nm was used as a fluorescence excitation source. Differences in maximum intensity of fluorescence occurred at 440 nm, 525 nm, 685 nm, and 740 nm. Significant separations were found between levels of N fertilization at several LIF wavelength ratios. Several reflectance algorithms also produced significant separations between certain levels of N fertilization. C1 UNIV MARYLAND,DEPT GEOG,COLL PK,MD 20742. NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,GREENBELT,MD 20771. RP MCMURTREY, JE (reprint author), USDA ARS,BELTSVILLE AGR RES CTR,BARC W,BELTSVILLE,MD 20705, USA. NR 17 TC 122 Z9 130 U1 1 U2 12 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD JAN PY 1994 VL 47 IS 1 BP 36 EP 44 DI 10.1016/0034-4257(94)90125-2 PG 9 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA NN405 UT WOS:A1994NN40500006 ER PT J AU KHARUK, VI MORGUN, VN ROCK, BN WILLIAMS, DL AF KHARUK, VI MORGUN, VN ROCK, BN WILLIAMS, DL TI CHLOROPHYLL FLUORESCENCE AND DELAYED FLUORESCENCE AS POTENTIAL TOOLS IN REMOTE-SENSING - A REFLECTION OF SOME ASPECTS OF PROBLEMS IN COMPARATIVE-ANALYSIS SO REMOTE SENSING OF ENVIRONMENT LA English DT Article ID PLANT PHYSIOLOGY; STATE; LIGHT AB Induction kinetics of chlorophyll fluorescence (the Kautsky effect) and delayed fluorescence (DF) of some cold climate species were studied in both laboratory and in situ experiments to assess their vlaue as indicators of plant health. Experiments included studies of natural variability of fluorescence in connection with the seasonal leaf maturation process, as well as the influence of environmental stress factors, such as ozone. It was found that parameters of induction curves (normalized variable fluorescence, time of its half decrease) could be used as indicators of plant health. No significant differences have been elicited between the information content of the Kautsky effect and induction curves of DF as tools for remote sensing. It is suggested that measurements of the single decay curves of DF are preferable for remote estimation of photosynthetic capacity. C1 KRASNOYARSK STATE AGR UNIV,KRASNOYARSK,RUSSIA. NASA,GODDARD SPACE FLIGHT CTR,TERR PHYS LAB,GREENBELT,MD 20771. UNIV NEW HAMPSHIRE,INST STUDY EARTH OCEANS SPACE,DURHAM,NH 03824. RP KHARUK, VI (reprint author), SUKACHEV FOREST INST,66036 KRASNOYARSK,RUSSIA. NR 20 TC 7 Z9 8 U1 1 U2 8 PU ELSEVIER SCIENCE INC PI NEW YORK PA 655 AVENUE OF THE AMERICAS, NEW YORK, NY 10010 SN 0034-4257 J9 REMOTE SENS ENVIRON JI Remote Sens. Environ. PD JAN PY 1994 VL 47 IS 1 BP 98 EP 105 DI 10.1016/0034-4257(94)90133-3 PG 8 WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic Technology SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science & Photographic Technology GA NN405 UT WOS:A1994NN40500014 ER PT J AU WELCH, RV DIXON, JR AF WELCH, RV DIXON, JR TI GUIDING CONCEPTUAL DESIGN THROUGH BEHAVIORAL REASONING SO RESEARCH IN ENGINEERING DESIGN-THEORY APPLICATIONS AND CONCURRENT ENGINEERING LA English DT Article DE CONCEPTUAL DESIGN; BEHAVIOR; FUNCTION AB This paper presents a model for conceptual design based on an explicit behavioral reasoning step to guide the design process. Rather than mapping directly from function to form, we treat conceptual design as a two-step process, first transforming functional requirements to a behavioral description and then matching physical artifacts to this behavior. We believe that behavior, in terms of physical principles and phenomena, provides a natural bridge between functional requirements and physical artifacts. Behavioral reasoning breaks preconceived links between functions and artifacts, allowing for innovative solutions to be found. A new representation called behavior graphs (derived from bond graphs) has been developed to facilitate behavioral reasoning. This paper discusses behavior graphs and their use in a design synthesis model that generates systems of pre-defined embodiments (e.g., motor, spring, valve) to meet functional requirements given in terms of input and output parameters (e.g., force, pressure, displacement, voltage). An experimental computer program implementing this model is discussed and illustrative examples presented. C1 UNIV MASSACHUSETTS,DEPT MECH ENGN,AMHERST,MA 01003. RP WELCH, RV (reprint author), CALTECH,JET PROP LAB,MAIL STOP 138-212,4800 OAK GROVE DR,PASADENA,CA 91109, USA. NR 33 TC 57 Z9 65 U1 0 U2 0 PU SPRINGER-VERLAG LONDON LTD PI GODALMING PA SWEETAPPLE HOUSE CATTESHALL ROAD, GODALMING, SURREY, ENGLAND GU7 3DJ SN 0934-9839 J9 RES ENG DES JI Res. Eng. Design-Theory Appl. Concurrent Eng. PY 1994 VL 6 IS 3 BP 169 EP 188 DI 10.1007/BF01607277 PG 20 WC Engineering, Multidisciplinary; Engineering, Industrial; Engineering, Manufacturing SC Engineering GA QD389 UT WOS:A1994QD38900003 ER PT B AU TAYLOR, JA AF TAYLOR, JA BE Gondhalekar, PM Horne, K Peterson, BM TI Effects of local, delayed response in AGN SO REVERBERATION MAPPING OF THE BROAD-LINE REGION IN ACTIVE GALACTIC NUCLEI SE ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES LA English DT Proceedings Paper CT 10th Rutherford-Appleton-Laboratory Workshop on Astronomy and Astrophysics - Reverberation Mapping of the Broad-Line Region in Active Galactic Nuclei CY MAY 23-25, 1994 CL ABINGDON, ENGLAND SP Rutherford Appleton Lab, Ohio State Univ C1 NASA,GODDARD SPACE FLIGHT CTR,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 0-937707-88-0 J9 ASTR SOC P PY 1994 VL 69 BP 341 EP 355 PG 15 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BD49J UT WOS:A1994BD49J00020 ER PT B AU FULTON, JP DEATON, JB ROGOWSKI, RS NAMKUNG, M AF FULTON, JP DEATON, JB ROGOWSKI, RS NAMKUNG, M BE Thompson, DO Chimenti, DE TI CAPABILITIES AND LIMITATIONS OF ELECTRONIC SHEAROGRAPHY FOR DETECTION OF CRACKS IN THIN PLATES SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,NONDESTRUCT EVALUAT SCI BRANCH,HAMPTON,VA 23665. RI Namkung, Min/E-1533-2012 NR 0 TC 1 Z9 1 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 365 EP 372 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00047 ER PT B AU DEATON, JB ROGOWSKI, RS AF DEATON, JB ROGOWSKI, RS BE Thompson, DO Chimenti, DE TI A COMPACT MICHELSON-BASED SHEAROGRAPHY AND ESPI SYSTEM FOR NONDESTRUCTIVE EVALUATION SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,NONDESTRUCT EVALUAT SCI BRANCH,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 373 EP 380 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00048 ER PT B AU JOHNSTON, PH WILLIAMS, JL KHANNA, G AF JOHNSTON, PH WILLIAMS, JL KHANNA, G BE Thompson, DO Chimenti, DE TI POLAR ANGLE DEPENDENCE OF ULTRASONIC INTEGRATED BACKSCATTER FROM GRAPHITE-EPOXY COMPOSITES WITH KEVLAR STITCHING SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 1 Z9 1 U1 0 U2 3 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1299 EP 1306 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00168 ER PT B AU CHERN, EJ BUTLER, DW AF CHERN, EJ BUTLER, DW BE Thompson, DO Chimenti, DE TI ULTRASONIC EVALUATION OF 2ND LAYER INTERFACE INTEGRITY SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 UNISYS CORP,NASA,MAT BRANCH,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1431 EP 1435 PN A & B PG 5 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00185 ER PT B AU NAMKUNG, M FULTON, JP WINCHESKI, B CLENDENIN, CG AF NAMKUNG, M FULTON, JP WINCHESKI, B CLENDENIN, CG BE Thompson, DO Chimenti, DE TI AN APPLICATION OF A NEW ELECTROMAGNETIC SENSOR TO REAL-TIME MONITORING OF FATIGUE-CRACK GROWTH IN THIN METAL PLATES SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. RI Namkung, Min/E-1533-2012 NR 0 TC 1 Z9 1 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1633 EP 1640 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00211 ER PT B AU ROTH, DJ KISER, JD SWICKARD, SM SZATMARY, SA KERWIN, DP AF ROTH, DJ KISER, JD SWICKARD, SM SZATMARY, SA KERWIN, DP BE Thompson, DO Chimenti, DE TI PORE FRACTION VARIATIONS MAPPED IN SILICON-NITRIDE USING SPECTROSCOPIC ULTRASONIC CONTACT SCANNING SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1653 EP 1659 PN A & B PG 7 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00214 ER PT B AU JOHNSTON, PH NATHAN, N HODGES, KL AF JOHNSTON, PH NATHAN, N HODGES, KL BE Thompson, DO Chimenti, DE TI QUANTITATIVE ULTRASONIC-ATTENUATION FOR NDE OF TEXTILE-BASED COMPOSITE-MATERIALS SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1761 EP 1768 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00228 ER PT B AU NAMKUNG, M WINCHESKI, B FULTON, JP TODHUNTER, RG AF NAMKUNG, M WINCHESKI, B FULTON, JP TODHUNTER, RG BE Thompson, DO Chimenti, DE TI CHARACTERIZATION OF MAGNETOACOUSTIC EMISSION RELATED TO STRUCTURAL-PROPERTIES OF FERROMAGNETS SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23681. RI Namkung, Min/E-1533-2012 NR 0 TC 1 Z9 1 U1 0 U2 1 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1809 EP 1816 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00234 ER PT B AU ABEDIN, MN JOHNSTON, PH PRABHU, DR AF ABEDIN, MN JOHNSTON, PH PRABHU, DR BE Thompson, DO Chimenti, DE TI EFFECT OF PAINT THICKNESS ON A NEAR-RESONANCE ULTRASONIC TECHNIQUE FOR DETECTING DISBONDS IN AIRCRAFT STRUCTURES SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 ANALYT SERV & MAT INC,NASA,LANGLEY RES CTR,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1911 EP 1917 PN A & B PG 7 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00247 ER PT B AU PRABHU, DR ABEDIN, MN JOHNSTON, PH AF PRABHU, DR ABEDIN, MN JOHNSTON, PH BE Thompson, DO Chimenti, DE TI SIMULTANEOUS DETECTION OF DISBONDS AND TOP-LAYER CORROSION THROUGH ULTRASONIC CONTACT SCANNING SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,ANALYT SERV & MAT INC,HAMPTON,VA 23681. NR 0 TC 0 Z9 0 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1919 EP 1926 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00248 ER PT B AU BIRT, EA PARKER, FR WINFREE, WP AF BIRT, EA PARKER, FR WINFREE, WP BE Thompson, DO Chimenti, DE TI QUANTIFICATION OF CORROSION DAMAGE IN AIRCRAFT SKIN USING A NOVEL X-RAY RADIOGRAPHY SYSTEM SO REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION, VOLS 13A AND 13B SE REVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION LA English DT Proceedings Paper CT Annual Review of Progress in Quantitative Nondestructive Evaluation CY AUG 01-06, 1993 CL BOWDIN COLL, BRUNSWICK, ME SP IOWA STATE UNIV, CTR NONDESTRUCT EVALUAT, US DOE, AMES LAB, USAF, WRIGHT LAB MAT DIRECTORATE, AMER SOC NONDESTRUCT TESTING, JOHNS HOPKINS UNIV, CTR NONDESTRUCT EVALUAT, US DOE, FED AVIAT ADM, NIST, NATL SCI FDN, IND UNIV COOPERAT RES CTR, WORKING GRP QUANTITAT NONDESTRUCT EVALUAT HO BOWDIN COLL C1 NASA,LANGLEY RES CTR,NONDESTRUCT EVALUAT SCI BRANCH,HAMPTON,VA 23681. NR 0 TC 4 Z9 4 U1 0 U2 0 PU PLENUM PRESS DIV PLENUM PUBLISHING CORP PI NEW YORK PA 233 SPRING ST, NEW YORK, NY 10013 BN 0-306-44731-2 J9 REV PROG Q PY 1994 VL 13 BP 1963 EP 1970 PN A & B PG 8 WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary; Mechanics SC Engineering; Materials Science; Mechanics GA BA63C UT WOS:A1994BA63C00254 ER PT B AU Kim, WS Brown, R AF Kim, WS Brown, R BE Demsetz, LA TI Telerobotic servicing with virtual reality calibration and semi-automatic intermittent model updates SO ROBOTICS FOR CHALLENGING ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Conference on Robotics for Challenging Environments (RCE II) CY JUN 01-06, 1996 CL ALBUQUERQUE, NM SP Amer Soc Civil Engineers, Aerosp Div, Amer Astronaut Soc, Amer Concrete Inst, Amer Inst Architects, Colorado State Univ, Ctr Engn Infrastruct & Sci Space, Lunar & Planetary Inst, NASA, New Mexico State Univ, Dept Astron, SW Reg Spaceport, Sandia Natl Labs, Univ Colorado, NASA Ctr Space Construct, Univ New Mexico, Inst Meteorit, New Mexico Engn Res Inst, Univ Tennessee, Planetary Geosci Inst AB A successful commercial implementation of ''operator-interactive'' VR calibration and recent exciting new developments of semi-automatic VR calibration are described. Computer-vision-assisted VR calibration techniques developed enable semi-automatic intermittent 3-D graphic model update to match the simulated graphics with actual video images. In our implementation, after various comparative studies, Hager's local edge detector, Kumar's R and T mode least-squares algorithm, and Fishier and Bolles' RANSAC approach have been employed for computational efficiency and robustness with respect to outliers. An interface for operator interactions have been added to guide the automated matching correctly when needed. The semi-automatic VR calibration with intermittent model updates could lead to a new way of performing more reliable and accurate telerobotic servicing. RP Kim, WS (reprint author), CALTECH,JET PROP LAB,4800 OAK GROVE DR,M-S 198-219,PASADENA,CA 91109, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC CIVIL ENGINEERS PI NEW YORK PA UNITED ENGINEERING CENTER, 345 E 47TH ST, NEW YORK, NY 10017-2398 BN 0-87262-913-9 PY 1994 BP 43 EP 49 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BH10V UT WOS:A1994BH10V00007 ER PT B AU Welch, R Sevilla, D Noon, D Delgadillo, A AF Welch, R Sevilla, D Noon, D Delgadillo, A BE Demsetz, LA TI Acquisition of subsurface comet samples SO ROBOTICS FOR CHALLENGING ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Conference on Robotics for Challenging Environments (RCE II) CY JUN 01-06, 1996 CL ALBUQUERQUE, NM SP Amer Soc Civil Engineers, Aerosp Div, Amer Astronaut Soc, Amer Concrete Inst, Amer Inst Architects, Colorado State Univ, Ctr Engn Infrastruct & Sci Space, Lunar & Planetary Inst, NASA, New Mexico State Univ, Dept Astron, SW Reg Spaceport, Sandia Natl Labs, Univ Colorado, NASA Ctr Space Construct, Univ New Mexico, Inst Meteorit, New Mexico Engn Res Inst, Univ Tennessee, Planetary Geosci Inst AB Comets represent one of the highest priority targets for future scientific missions. NASA JPL and the French space agency CNES are proposing a cometary lander called Champollion for the upcoming ESA Rosetta mission to the comet Wirtanen. A variety of basic technology development is required to ensure that the challenging Champollion mission goals to land on and sample a comet can be met. This paper will discuss one of the most challenging issues, how to autonomously acquire subsurface samples from a comet for scientific analysis. The Champollion mission requires the sampling system to gather approximately 1cm(3) of cometary material from at least 20cm below the surface and if possible Im deep. However, achieving this requirement is very challenging within the constraints and unknowns of the mission. Estimates on the strength of cometary material vary over five orders of magnitude from fluffy snow to concrete hard ice. The surface conditions on a comet pose their own problems of microgravity and cryogenic temperatures. We have designed and prototyped an innovative drilling mechanism which uses a single lead screw as the drill stem and combines the thrust and rotation drive motors into to a single compact unit independent of the lead screw length. A force/torque sensor has been integrated on the prototype system to monitor drilling forces as well as to enable autonomous drilling using force control. The prototype sampling system is presented here and initial results of drilling in comet analogue materials discussed. RP Welch, R (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 AMER SOC CIVIL ENGINEERS PI NEW YORK PA UNITED ENGINEERING CENTER, 345 E 47TH ST, NEW YORK, NY 10017-2398 BN 0-87262-913-9 PY 1994 BP 129 EP 135 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BH10V UT WOS:A1994BH10V00019 ER PT B AU Parrish, JC Akin, DL AF Parrish, JC Akin, DL BE Demsetz, LA TI The ranger telerobotic flight experiment: Mission, technologies, and programmatics SO ROBOTICS FOR CHALLENGING ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Conference on Robotics for Challenging Environments (RCE II) CY JUN 01-06, 1996 CL ALBUQUERQUE, NM SP Amer Soc Civil Engineers, Aerosp Div, Amer Astronaut Soc, Amer Concrete Inst, Amer Inst Architects, Colorado State Univ, Ctr Engn Infrastruct & Sci Space, Lunar & Planetary Inst, NASA, New Mexico State Univ, Dept Astron, SW Reg Spaceport, Sandia Natl Labs, Univ Colorado, NASA Ctr Space Construct, Univ New Mexico, Inst Meteorit, New Mexico Engn Res Inst, Univ Tennessee, Planetary Geosci Inst AB The Ranger Telerobotic Flight Experiment is planned for launch into low Earth orbit via an expendable booster in 1997. During its go-day mission, the Ranger space telerobot will demonstrate a wide variety of spacecraft servicing capabilities, and wilt set the stage for future telerobotic spacecraft el servicing missions in Earth orbit. The scientific mission will be oriented toward building a database of comparative operations between the on-orbit and ground-based simulations-including neutral buoyancy and computer simulations. A number of technologies are being applied to the Ranger experiment, with the intent of determining the capabilities and limitations of space telerobotic systems. To this end, a number of robotic servicing tasks ranging from simple to extremely complex will be included in the mission. Advanced technologies such as advanced robot manipulator control determine the optimal control modes for the 30+ total degrees of freedom under the operator's control. RP Parrish, JC (reprint author), NASA,RANGER TELEROBOT FLIGHT EXPT,WASHINGTON,DC 20546, USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER SOC CIVIL ENGINEERS PI NEW YORK PA UNITED ENGINEERING CENTER, 345 E 47TH ST, NEW YORK, NY 10017-2398 BN 0-87262-913-9 PY 1994 BP 136 EP 142 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BH10V UT WOS:A1994BH10V00020 ER PT B AU Lincoln, W AF Lincoln, W BE Demsetz, LA TI Simulation and visualization of Martian rover SO ROBOTICS FOR CHALLENGING ENVIRONMENTS LA English DT Proceedings Paper CT 2nd Conference on Robotics for Challenging Environments (RCE II) CY JUN 01-06, 1996 CL ALBUQUERQUE, NM SP Amer Soc Civil Engineers, Aerosp Div, Amer Astronaut Soc, Amer Concrete Inst, Amer Inst Architects, Colorado State Univ, Ctr Engn Infrastruct & Sci Space, Lunar & Planetary Inst, NASA, New Mexico State Univ, Dept Astron, SW Reg Spaceport, Sandia Natl Labs, Univ Colorado, NASA Ctr Space Construct, Univ New Mexico, Inst Meteorit, New Mexico Engn Res Inst, Univ Tennessee, Planetary Geosci Inst RP Lincoln, W (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 AMER SOC CIVIL ENGINEERS PI NEW YORK PA UNITED ENGINEERING CENTER, 345 E 47TH ST, NEW YORK, NY 10017-2398 BN 0-87262-913-9 PY 1994 BP 143 EP 149 PG 7 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BH10V UT WOS:A1994BH10V00021 ER PT J AU SCANLON, CH AF SCANLON, CH GP FLIGHT SAFETY FDN TI Cockpit graphical weather information shown to enhance efficiency, safety, and situation awareness SO SAFE APPLICATION OF TECHNOLOGY IN CORPORATE AVIATION SE INTERNATIONAL AIR SAFETY SEMINAR PROCEEDINGS LA English DT Proceedings Paper CT 39th Annual Corporate Aviation Safety Seminar (CASS) - Safe Application of Technology in Corporate Aviation CY APR 13-15, 1994 CL ST LOUIS, MO SP FLIGHT SAFETY FDN C1 NASA,LANGLEY RES CTR,HAMPTON,VA 23665. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FLIGHT SAFETY FOUNDATION PI ALEXANDRIA PA 601 MADISON STREET STE 300, ALEXANDRIA, VA 22314 SN 0270-5176 J9 INT AIR SAF SEM P PY 1994 BP 83 EP 95 PG 13 WC Engineering, Aerospace; Engineering, Industrial; Ergonomics SC Engineering GA BC53L UT WOS:A1994BC53L00008 ER PT S AU ROSEKIND, MR CO, EL JOHNSON, JM SMITH, RM WELDON, KJ MILLER, DL GREGORY, KB GANDER, PH LEBACQZ, JV AF ROSEKIND, MR CO, EL JOHNSON, JM SMITH, RM WELDON, KJ MILLER, DL GREGORY, KB GANDER, PH LEBACQZ, JV GP FLIGHT SAFETY FDN TI Alertness management in long-haul flight operations SO SAFE APPLICATION OF TECHNOLOGY IN CORPORATE AVIATION SE INTERNATIONAL AIR SAFETY SEMINAR PROCEEDINGS LA English DT Proceedings Paper CT 39th Annual Corporate Aviation Safety Seminar (CASS) - Safe Application of Technology in Corporate Aviation CY APR 13-15, 1994 CL ST LOUIS, MO SP FLIGHT SAFETY FDN C1 NASA,AMES RES CTR,CLEVELAND,OH. NR 0 TC 0 Z9 0 U1 0 U2 1 PU FLIGHT SAFETY FOUNDATION PI ALEXANDRIA PA 601 MADISON STREET STE 300, ALEXANDRIA, VA 22314 SN 0270-5176 J9 INT AIR SAF SEM P PY 1994 BP 167 EP 178 PG 12 WC Engineering, Aerospace; Engineering, Industrial; Ergonomics SC Engineering GA BC53L UT WOS:A1994BC53L00017 ER PT J AU AIKIN, BJM DICKERSON, RM JAYNE, DT FARMER, S WHITTENBERGER, JD AF AIKIN, BJM DICKERSON, RM JAYNE, DT FARMER, S WHITTENBERGER, JD TI FORMATION OF ALUMINUM NITRIDE DURING CRYOMILLING OF NIAL SO SCRIPTA METALLURGICA ET MATERIALIA LA English DT Article ID COMPRESSIVE PROPERTIES; ALN COMPOSITE C1 NASA,LEWIS RES CTR,CLEVELAND,OH 44135. RP AIKIN, BJM (reprint author), CASE WESTERN RESERVE UNIV,CLEVELAND,OH 44106, USA. NR 11 TC 31 Z9 32 U1 0 U2 3 PU PERGAMON-ELSEVIER SCIENCE LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, ENGLAND OX5 1GB SN 0956-716X J9 SCRIPTA METALL MATER JI Scr. Metall. Materialia PD JAN 1 PY 1994 VL 30 IS 1 BP 119 EP 122 DI 10.1016/0956-716X(94)90369-7 PG 4 WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering SC Materials Science; Metallurgy & Metallurgical Engineering GA ME906 UT WOS:A1994ME90600022 ER PT S AU GEHRELS, N CHIPMAN, E KNIFFEN, DA AF GEHRELS, N CHIPMAN, E KNIFFEN, DA BE Fichtel, CE Gehrels, N Norris, JP TI THE COMPTON GAMMA-RAY OBSERVATORY - MISSION STATUS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,GREENBELT,MD 20771. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 3 EP 11 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00001 ER PT S AU FISHMAN, GJ AF FISHMAN, GJ BE Fichtel, CE Gehrels, N Norris, JP TI GAMMA-RAY BURSTS - OBSERVATIONAL OVERVIEW SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 22 EP 29 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00003 ER PT S AU HARDING, AK AF HARDING, AK BE Fichtel, CE Gehrels, N Norris, JP TI GAMMA-RAY BURST MODELS - PRESENT PROBLEMS AND POSSIBLE SOLUTIONS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 30 EP 39 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00004 ER PT S AU THOMPSON, DJ AF THOMPSON, DJ BE Fichtel, CE Gehrels, N Norris, JP TI HIGH-ENERGY OBSERVATIONS OF SPIN-POWERED PULSARS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Thompson, David/D-2939-2012 OI Thompson, David/0000-0001-5217-9135 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 57 EP 66 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00007 ER PT S AU BARTLETT, LM BARTHELMY, SD GEHRELS, N TEEGARDEN, BJ TUELLER, J LEVENTHAL, M MACCALLUM, CJ AF BARTLETT, LM BARTHELMY, SD GEHRELS, N TEEGARDEN, BJ TUELLER, J LEVENTHAL, M MACCALLUM, CJ BE Fichtel, CE Gehrels, N Norris, JP TI HIGH-RESOLUTION PHASE-RESOLVED SPECTROSCOPY OF THE CRAB SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Tueller, Jack/D-5334-2012; Barthelmy, Scott/D-2943-2012 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 67 EP 71 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00008 ER PT S AU MATTOX, JR BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HARTMAN, RC HUNTER, SD SREEKUMAR, P THOMPSON, DJ CHIANG, J FIERRO, JM LIN, YC MICHELSON, PF NOLAN, PL WILLIS, TD BRAZIER, K KANBACH, G MAYERHASSELWANDER, HA VONMONTIGNY, C RADECKE, HD KNIFFEN, DA SCHNEID, E AF MATTOX, JR BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HARTMAN, RC HUNTER, SD SREEKUMAR, P THOMPSON, DJ CHIANG, J FIERRO, JM LIN, YC MICHELSON, PF NOLAN, PL WILLIS, TD BRAZIER, K KANBACH, G MAYERHASSELWANDER, HA VONMONTIGNY, C RADECKE, HD KNIFFEN, DA SCHNEID, E BE Fichtel, CE Gehrels, N Norris, JP TI TIMING THE GEMINGA PULSAR WITH HIGH-ENERGY GAMMA-RAYS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 77 EP 81 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00010 ER PT S AU KOUVELIOTOU, C AF KOUVELIOTOU, C BE Fichtel, CE Gehrels, N Norris, JP TI QUASI-PERIODIC OSCILLATIONS OF BLACK-HOLE CANDIDATES OBSERVED WITH BATSE SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 202 EP 209 PG 8 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00033 ER PT S AU HARMON, BA ZHANG, SN WILSON, CA RUBIN, BC FISHMAN, GJ PACIESAS, WS AF HARMON, BA ZHANG, SN WILSON, CA RUBIN, BC FISHMAN, GJ PACIESAS, WS BE Fichtel, CE Gehrels, N Norris, JP TI BATSE OBSERVATIONS OF TRANSIENT HARD X-RAY SOURCES SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 13 Z9 13 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 210 EP 219 PG 10 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00034 ER PT S AU LING, JC WHEATON, WA SKELTON, RT HARMON, BA FISHMAN, GJ PACIESAS, WS AF LING, JC WHEATON, WA SKELTON, RT HARMON, BA FISHMAN, GJ PACIESAS, WS BE Fichtel, CE Gehrels, N Norris, JP TI BATSE OBSERVATIONS OF CYGNUS X-1 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 JET PROP LAB,PASADENA,CA 91109. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 220 EP 224 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00035 ER PT S AU WILSON, RB FINGER, MH PENDLETON, GN BRIGGS, M BILDSTEN, L AF WILSON, RB FINGER, MH PENDLETON, GN BRIGGS, M BILDSTEN, L BE Fichtel, CE Gehrels, N Norris, JP TI BATSE OBSERVATIONS OF HER X-1 - THE 35 DAY CYCLE, ORBIT DETERMINATION, AND TORQUE STUDIES SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 2 Z9 2 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 235 EP 239 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00038 ER PT S AU BARRETT, P DEJAGER, OC SCHLEGEL, EM CHANMUGAM, G HUNTER, SD MATTOX, JR AF BARRETT, P DEJAGER, OC SCHLEGEL, EM CHANMUGAM, G HUNTER, SD MATTOX, JR BE Fichtel, CE Gehrels, N Norris, JP TI THE 1ST EGRET SURVEY OF CATACLYSMIC VARIABLES - CONSTRAINTS ON NONTHERMAL MODELS OF GAMMA-RAY PRODUCTION SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Hunter, Stanley/D-2942-2012 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 275 EP 279 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00045 ER PT S AU FINGER, MH WILSON, RB FISHMAN, GJ AF FINGER, MH WILSON, RB FISHMAN, GJ BE Fichtel, CE Gehrels, N Norris, JP TI OBSERVATIONS OF ACCRETION TORQUES IN CEN X-3 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 304 EP 308 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00051 ER PT S AU SHRADER, CR WAGNER, RM HJELLMING, RM HAN, XH STARRFIELD, SG AF SHRADER, CR WAGNER, RM HJELLMING, RM HAN, XH STARRFIELD, SG BE Fichtel, CE Gehrels, N Norris, JP TI MULTIWAVELENGTH PROPERTIES OF GRO J0422+32 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GSFC,CSC,HIGH ENERGY ASTROPHYS,WASHINGTON,DC 20546. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 365 EP 369 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00064 ER PT S AU TITARCHUK, L AF TITARCHUK, L BE Fichtel, CE Gehrels, N Norris, JP TI GENERALIZED COMPTONIZATION MODELS AND APPLICATION TO THE RECENT HIGH-ENERGY OBSERVATIONS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 380 EP 384 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00067 ER PT S AU WILSON, RB HARMON, BA FISHMAN, GJ FINGER, MH STOLLBERG, MT PENDLETON, GN BRIGGS, M PRINCE, TA BILDSTEN, L CHAKRABARTY, D RUBIN, BC ZHANG, SN AF WILSON, RB HARMON, BA FISHMAN, GJ FINGER, MH STOLLBERG, MT PENDLETON, GN BRIGGS, M PRINCE, TA BILDSTEN, L CHAKRABARTY, D RUBIN, BC ZHANG, SN BE Fichtel, CE Gehrels, N Norris, JP TI BATSE DISCOVERY OF A HARD X-RAY PULSAR-GRO J1008-57 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,HUNTSVILLE,AL 35812. NR 0 TC 2 Z9 2 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 390 EP 394 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00069 ER PT S AU HARMON, BA ZHANG, SN FISHMAN, GJ PACIESAS, WS RUBIN, BC MEEGAN, CA WILSON, RB FINGER, MH AF HARMON, BA ZHANG, SN FISHMAN, GJ PACIESAS, WS RUBIN, BC MEEGAN, CA WILSON, RB FINGER, MH BE Fichtel, CE Gehrels, N Norris, JP TI BATSE OBSERVATIONS OF GX354-0 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GEORGE C MARSHALL SPACE FLIGHT CTR,ES66,HUNTSVILLE,AL 35812. 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 456 EP 460 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00081 ER PT S AU DIGEL, SW HUNTER, SD AF DIGEL, SW HUNTER, SD BE Fichtel, CE Gehrels, N Norris, JP TI EGRET OBSERVATIONS OF THE INTERSTELLAR CLOUDS IN OPHIUCHUS - A REASSESSMENT OF COS-B SOURCE 2CG 353+16 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Hunter, Stanley/D-2942-2012 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 484 EP 488 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00084 ER PT S AU STECKER, FW DEJAGER, OC AF STECKER, FW DEJAGER, OC BE Fichtel, CE Gehrels, N Norris, JP TI GAMMA-RAY OBSERVATIONS CONSTRAIN THE INTERGALACTIC INFRARED RADIATION DENSITY SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Stecker, Floyd/D-3169-2012 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 504 EP 508 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00088 ER PT S AU LEITER, D BOLDT, E AF LEITER, D BOLDT, E BE Fichtel, CE Gehrels, N Norris, JP TI CAN AGN ALONE MAKE THE COSMIC X-RAY-BACKGROUND SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,HIGH ENERGY ASTROPHYS LAB,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 551 EP 555 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00096 ER PT S AU HARTMAN, RC BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HUNTER, SD MATTOX, JR SREEKUMAR, P THOMPSON, DJ KNIFFEN, DA SCHNEID, EJ CHIANG, J FIERRO, JM LIN, YC MICHELSON, PF NOLAN, PL WILLIS, T KANBACH, G MAYERHASSELWANDER, HA VONMONTIGNY, C AF HARTMAN, RC BERTSCH, DL DINGUS, BL ESPOSITO, JA FICHTEL, CE HUNTER, SD MATTOX, JR SREEKUMAR, P THOMPSON, DJ KNIFFEN, DA SCHNEID, EJ CHIANG, J FIERRO, JM LIN, YC MICHELSON, PF NOLAN, PL WILLIS, T KANBACH, G MAYERHASSELWANDER, HA VONMONTIGNY, C BE Fichtel, CE Gehrels, N Norris, JP TI EGRET OBSERVATIONS OF ACTIVE GALACTIC NUCLEI SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. RI Hunter, Stanley/D-2942-2012; Thompson, David/D-2939-2012 OI Thompson, David/0000-0001-5217-9135 NR 0 TC 2 Z9 2 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 563 EP 571 PG 9 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00098 ER PT S AU KAZANAS, D MASTICHIADIS, A AF KAZANAS, D MASTICHIADIS, A BE Fichtel, CE Gehrels, N Norris, JP TI RELATIVISTIC OUTFLOWS AND HIGH-ENERGY GAMMA-RAYS IN BLAZARS SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GREENBELT,MD 20771. NR 0 TC 2 Z9 2 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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 629 EP 633 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00109 ER PT S AU BARING, MG AF BARING, MG BE Fichtel, CE Gehrels, N Norris, JP TI ANISOTROPIC THOMSON UPSCATTERING IN ACTIVE GALACTIC NUCLEI SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 639 EP 643 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00111 ER PT S AU BONNELL, JT VESTRAND, WT STACY, JG AF BONNELL, JT VESTRAND, WT STACY, JG BE Fichtel, CE Gehrels, N Norris, JP TI ULTRAVIOLET OBSERVATIONS OF THE GAMMA-RAY BLAZAR 3C-279 FOLLOWING THE GAMMA-RAY FLARE OF JUNE 1991 SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GSFC,COMP SCI CORP,ASTRON PROGRAMS,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 649 EP 653 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00113 ER PT S AU STACY, JG VESTRAND, WT AF STACY, JG VESTRAND, WT BE Fichtel, CE Gehrels, N Norris, JP TI MILLIMETER-WAVE OBSERVATIONS OF EXTRAGALACTIC GAMMA-RAY SOURCES WITH THE HAYSTACK RADIO TELESCOPE SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GSFC,CSC,COMPTON OBSERV SCI SUPPORT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 684 EP 687 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00120 ER PT S AU JENNINGS, DJ JORDAN, JM RUGGIERO, N MCGLYNN, TA BONNELL, JT GLIBA, GW SERLEMITSOS, TA AF JENNINGS, DJ JORDAN, JM RUGGIERO, N MCGLYNN, TA BONNELL, JT GLIBA, GW SERLEMITSOS, TA BE Fichtel, CE Gehrels, N Norris, JP TI GETTING STARTED WITH COMPTON OBSERVATORY PUBLIC ARCHIVE DATA SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 GSFC,COMPTON OBSERV SCI SUPPORT CTR,SOFTWARE GRP,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 731 EP 735 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00129 ER PT S AU MACOMB, DJ MATTOX, JR RUGGIERO, N AF MACOMB, DJ MATTOX, JR RUGGIERO, N BE Fichtel, CE Gehrels, N Norris, JP TI A USER EXTENSIBLE EVENT LIST UTILITY FOR EGRET DATA SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,GSFC,GRO SCI SUPPORT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 736 EP 740 PG 5 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00130 ER PT S AU RUGGIERO, N MACOMB, DJ MATTOX, JR MCGLYNN, TA AF RUGGIERO, N MACOMB, DJ MATTOX, JR MCGLYNN, TA BE Fichtel, CE Gehrels, N Norris, JP TI EGRET DATA-ANALYSIS AT THE COMPTON OBSERVATORY SCIENCE SUPPORT CENTER SO SECOND COMPTON SYMPOSIUM SE AIP CONFERENCE PROCEEDINGS LA English DT Proceedings Paper CT 2nd Compton Symposium CY SEP 20-22, 1993 CL UNIV MARYLAND, ADULT EDUC CTR, COLL PK, MD HO UNIV MARYLAND, ADULT EDUC CTR C1 NASA,GODDARD SPACE FLIGHT CTR,COMP SCI CORP,COMPTON OBSERV SCI SUPPORT CTR,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 1-56396-261-6 J9 AIP CONF PROC PY 1994 IS 304 BP 754 EP 757 PG 4 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA BA55S UT WOS:A1994BA55S00134 ER EF