31 to 40 of 42,221 Results
Jul 1, 1994
Russell, C.T.; Pieters, C.M.; Konopliv, A.; Metzger, A.; Sercel, J.; Hickman, M.; Palac, D.; Sykes, M., 1994, "(abstract) A Solar Electric Propulsion Mission to the Moon and Beyond!", https://hdl.handle.net/2014/34634, not specified, JPL Open Repository
The technological development of solar electric propulsion has advanced significantly over the last few years. Mission planners are now seriously studying which missions would benefit most from solar electric propulsion (SEP) and NASA's Solar System Exploration Division is contri... |
Dec 1, 1994
Linfield, R.P.; Teitelbaum, L.P.; Keihm, S.J.; Resch, G.M.; Mahoney, M.J.; Treuhaft, R.N., 1994, "(abstract) A VLBI Test of Tropospheric Delay Calibration with WVRs", https://hdl.handle.net/2014/33276, San Francisco, CA, JPL Open Repository
Dual frequency (S/X band) very long baseline interferometry (VLBI) observations were used to test troposphere calibration by water vapor radiometers (WVRs). Comparison of the VLBI and WVR measurements show a statistical agreement (specifically, their structure functions agree) on... |
Jan 5, 1994
Gatti, Mark S.; Michael J. Klein, 1994, "(abstract) Absolute Flux Calibrations of Venus and Jupiter at 32 GHz", https://hdl.handle.net/2014/36336, Boulder, CO, JPL Open Repository
The microwave flux densities of Venus and Jupiter at 32 GHz have been measured using a calibration standard radio telescope system at the Owens Valley Radio Observatory (OVRO) during April and May of 1993. These measurements are part of a joint JPL/Caltech program to accurately c... |
Dec 1, 1994
Beer, Reinhard, 1994, "(abstract) Airborne Emission Spectrometer (AES)", https://hdl.handle.net/2014/33174, Tokyo, Japan, JPL Open Repository
AES is a low-cost analog of the TES downlooking modes. Because AES operates at ambient temperature, limb-viewing is not possible. The first flight of AES took place in April 1994 on the NASA P3B aircraft out of Wallops Island, VA. While planned as an engineering test flight, spec... |
Aug 12, 1996
Carsey, Frank; Wales, Carl, 1996, "(abstract) Alaska SAR Facility Ocean and Ice Data Opportunities Over the Next Decade", https://hdl.handle.net/2014/26148, Victoria, British Columbia, JPL Open Repository
The Alaska SAR Facility (ASF) is currently processing data from four satellites. All of these generate SAR data useful for ice observations and three of them generate data useful for ocean observations. The data sets from these satellites are available to approved US and other in... |
May 15, 1993
Williams, R.M.; Jeffries-Nakamura, B.; Ryan, M.A.; Underwood, M.L.; O'Connor, D.; Kisor, A.; Kikkert, S., 1993, "(abstract) Alkali Metal Diffusion Through Porous Metal Electrodes in AMTEC Cells", https://hdl.handle.net/2014/35266, Honolulu, HA, JPL Open Repository
The mechanisms of mass transport of an alkali metal through porous metal electrodes in alkali metal thermal-to-electric converter AMTEC cells is important in optimizing these high current density devices, but also affords the opportunity to investigate a variety of simple mass tr... |
Apr 1, 1995
Barner, J.B.; Hunt, B.D.; Foote, M.C., 1995, "(abstract) All Epitaxial Edge-geometry SNS Devices with Doped PBCO and YBCO Normal Layers", https://hdl.handle.net/2014/33472, San Francisco, CA, JPL Open Repository
We will present our results on tapered-edge-geometry SNS weak link fabricated from c-axis oriented base-, counterelectrode and normal layers using a variety of processing conditions. To date, we have employed a variety of different normal materials (Co-doped YBCO, Y-doped PBCO, C... |
Jul 23, 1996
Haines, B. J.; Christensen, E. J.; Norman, R. A.; Parke, M. E.; Born, G. H.; Gill, S. K., 1996, "(abstract) Altimeter Calibration and Geophysical Monitoring from Collocated Measurements at the Harvest Oil Platform", https://hdl.handle.net/2014/26049, Brisbane, Australia, JPL Open Repository
Prior to the launch of TOPEX/ Poseidon in August 1992, NASA established its primary in situ verification site on the Harvest oil platform located in the Pacific Ocean off the coast of central California. Data from a suite of geodetic and oceanographic instruments attached to the... |
Jun 6, 1995
Abbe, Brian S.; Pinck, Deborah S., 1995, "(abstract) AMT Experiment Results", https://hdl.handle.net/2014/33328, Ottawa, Canada, JPL Open Repository
The Advanced Communications Technology Satellite (ACTS) Mobile Terminal (AMT) experiments have provided a terminal technology testbed for the evaluation of K- and Ka-band mobile satellite communications (satcom). Such a system could prove to be highly beneficial for many differen... |
Dec 7, 1993
Backes, Paul; Long, Mark; Steele, Robert, 1993, "(abstract) An Ada Language Modular Telerobot Task Execution System", https://hdl.handle.net/2014/35275, Anaheim, CA, JPL Open Repository
A telerobotic task execution system is described which has been developed for space flight applications. The Modular Telerobot Task Execution System (MOTES) provides the remote site task execution capability in a local-remote telerobotic system. The system provides supervised aut... |