41,601 to 41,610 of 41,943 Results
Jan 1, 1993
Afshari, A., 1993, "Hubble Space Telescope's Wide Field/Planetary Camera", https://hdl.handle.net/2014/35164, Shutter Bug Magazine, JPL Open Repository
The WF/PC uses an 8-bit, RCA 1801 microprocessor, which is rather slow compared to today's microprocessing speeds. |
Jan 1, 1993
Sukamto, L., 1993, "20 GHz MMIC Receive Module for the Acts Mobile Terminal", https://hdl.handle.net/2014/35482, NASA LeRC Cleveland, Ohio, USA - NASA LeRC / JPL Workshop, MMIC Reliability, JPL Open Repository
No abstract provided |
Jan 1, 1993
Brown, R. H.; Kirk, R. L., 1993, "Coupling of Volatile Transport and Internal Heatflow on Triton", https://hdl.handle.net/2014/35791, n/a, JPL Open Repository
Recently Brown et al. (Science 250, 1991) showed that Trition's internal heat source could amount to 5-20% of the absorbed insolation on Trition, thus significantly affecting volatile transport and stmospheric pressure. |
Jan 1, 1993
Jin, M.; Chen, M., 1993, "Analysis and Simulation for a Spotlight-Mode Aircraft SAR in Circular Flight Path", https://hdl.handle.net/2014/35357, ['IGARSS: Better Understanding of Earth Environment', 'Tokyo, Japan'], JPL Open Repository
A spotlight aircraft SAR in a circular flight path can efficiently obtain an image with very high azimuth resolution or a wider azimuth viewing angle. An analysis on the spotlight SAR is made regarding the required PRF, the predicted resolution, and the computation complexity as... |
Jan 1, 1993
Kwok, R.; Cunningham, G. F., 1993, "Backscatter Characteristics of the Winter Sea Ice Cover in the Beaufort", https://hdl.handle.net/2014/35373, Journal of Geophysical Research, JPL Open Repository
The microwave backscatter statistics of the sea ice cover in the winter Beaufort Sea were characterized using C-band Synthetic Aperture Radar (SAR) data collected by ERS-1. Sea ice backscatter signatures were sampled from SAR image data collected during the winter of 1991/92 and... |
Jan 1, 1993
Kirkam, H., 1993, "Optical Current Transducers for Power Systems: A Review", https://hdl.handle.net/2014/35760, ['IEEE Transactions on Power Delivery', 'IEEE Power Engineering Society: Power Engineering', 'NY, NY'], JPL Open Repository
The technology of the optical measurement of current is reviewed. Several fundamentallydifferent approaches are described. Implementations from a number of manufacturers are examinedso as to highlight the similarities and the differences. Experience with optical current transduce... |
Jan 1, 1993
Williams, R. M.; Jeffries-Nakamura, B.; Ryan, M. A.; Underwood, M. L.; Suitor, J.; O'Connor, D., 1993, "Component Selection, Accelerated Testing, and Improved Modeling of AMTEC Systems for Space Power (abstract)", https://hdl.handle.net/2014/35264, Atlanta, GA, JPL Open Repository
Alkali metal thermal to electric converter (AMTEC) designs for space power are numerous, but selection of materials for construction of long-lived AMTEC devices has been limited to electrodes, current collectors, and the solid electrolyte. AMTEC devices with lifetimes greater tha... |
Jan 1, 1993
Alkalaj, Leon, 1993, "The Application of Microtechnology to Spacecraft On-Board Computing(abstract)", https://hdl.handle.net/2014/35153, not specified, JPL Open Repository
In this report, we will survey recent advances in chip packaging and stacking techniques that allow miniature computers to be developed for space applications. Several orders of magnitude reduction in mass, volume, and power consumption are possible using these techniques. Moreov... |
Jan 1, 1993
Hill, R.; Madore, B.; Freedman, W., 1993, "The Initial Mass function for Massive Stars in the Magellanic Clouds. III. Luminosity and Mass Functions for 14 OB Associations", https://hdl.handle.net/2014/35165, JPL Open Repository
This paper describes the use of UBV photometry of 14 associations in the Large and Small Magellanic Clouds to derive luminosity and mass functions for the most massive stars in the associations. |
Jan 1, 1993
Abbe, B.; Theofylaktos, N., 1993, "ACTS Advanced System Concepts and Experimentation", https://hdl.handle.net/2014/35347, JPL Open Repository
This paper describes the possibility of exploring new experiment and conceptual ideas with an extended ACTS satellite lifetime. |