41,621 to 41,630 of 41,981 Results
Jan 12, 1993
Goodson, G. B., 1993, "Shuttle Application for Rotary Recorders", https://hdl.handle.net/2014/34807, Del Mar, California, USA, JPL Open Repository
From the Conclusion: The ATMOS Recorder Subsystem will be a great benefit to the ATMOS experiment. By maximizing the amount and quality of scientific data returned by ATMOS during an ATLAS mission, the entire Mission to Planet Earth scientific investigation of the earth's atmosph... |
Jan 12, 1993
Surampudi, S.; Narayanan, S.R.; Vamos, E.; Frank, H.; Halpert, G., 1993, "Advances in Direct Methanol Fuel Cells at JPL", https://hdl.handle.net/2014/34828, Long Beach,California, USA, JPL Open Repository
A new liquid feed direct methanol fuel cell has been developed based on a proton exchange membrane electrolyte and Pt/Ru and Pt catalyzed carbon fuel and air/O2 electrodes respectively. |
Jan 11, 1993
Colavita, M. M., 1993, "Limitations To Optical/IR Interferometry", https://hdl.handle.net/2014/34904, Sydney, Australia, JPL Open Repository
The primary limitation to ground-based optical/IR interferometry is the turbulent atmosphere, which limits sensitivity by restricting the coherence volume, limits imaging accuracy by corrupting the fringe phase, and limits astrometric acuracy by corrupting the angel of arrival. |
Jan 10, 1993
Diner, D. J.; Marttonchik, J. V.; Bruegge, C. J., 1993, "Biderectional Reflectance Measurements From Space With The EOS Multi-Angle Imaging Spectroradiometer (MISR)", https://hdl.handle.net/2014/36459, Reno, Nevada, USA, JPL Open Repository
The first spacecraft in the NASA Earth Observing System (EOS) series, EOS-AMI, is scheculed for launch in June 1998. The Multi-angle Imaging SpectroRadiometer (MISR) instrument is currently under development for flight on this platform. |
Jan 9, 1993
Underwood, Margaret A., 1993, "Developments in Amtec Devices, Components and Performance", https://hdl.handle.net/2014/36298, Albuquerque, New Mexico, USA, JPL Open Repository
Improvement of the performance of an AMTEC device requires improvement and development of components as well as of device geometry and construction. |
Jan 8, 1993
Manning, R., 1993, "Low Cost Spacecraft Computers: Oxymoron or Future Trend?", https://hdl.handle.net/2014/34868, Keystone, Colorado, USA, JPL Open Repository
This paper describes how future trends in commercial computer technology will simplify (or hinder) selection of computer technology for spacecraft control applications, and what spacecraft electronic system designers can do to circumvent design constraints. |
Jan 5, 1993
Tanner, A.; Durden, S.; Im, E.; Li, F.; Ricketts, W.; Wilsons, W., 1993, "Pulse Compression with Very Low Sidelobes in an Airborne Rain Mapping Rada", https://hdl.handle.net/2014/35407, USA, JPL Open Repository
The pulse compression system for an airborne rain mapping rada is described. This system uses time domain weighting of the transmit pulse and is able to achive a pulse compression sidelobe level of -55 dB. This is significantly lower than any values previously reported in the ope... |
Jan 5, 1993
Weissman, Paul R., 1993, "(abstract) Scientific Objectivity and the Impact Hazard: Responsible Reporting Versus Crying Wolf", https://hdl.handle.net/2014/35402, Tucson, AZ, JPL Open Repository
Impacts of comets and asteroids on the Earth pose a real hazard, comparable in probability to other hazards which society deems worthy of concern. As such, it is prudent and reasonable to investigate and institute means for evaluation of the exact nature of the hazard and possibl... |
Jan 1, 1993
Hill, R.; Madore, B.; Freedman, W., 1993, "The Initial Mass Function for Massive Stars in the Magellanic Clouds. I. UBV Photometry and CM Diagrams for 14 OB Associations", https://hdl.handle.net/2014/34881, JPL Open Repository
This paper presents data used to construct color-magnitude diagrams for the purposes of investigating the massive-star content of the associations. |
Jan 1, 1993
Tsurutani, B., 1993, "Electromagnetic Waves with Frequencies Near the Local Proton Gryofrequency: ISEF-3 1 AU Observations", https://hdl.handle.net/2014/35612, UNKNOWN, JPL Open Repository
Low Frequency electromagnetic waves with periods near the local proton gyrofrequency have been detected near 1 AU by the magnetometer onboard ISEE-3. For these 1 AU waves two physical processes are possible: solar wind pickup of nuetral (interstellar?) particles and generation by... |