42,081 to 42,090 of 42,180 Results
Jan 1, 1993
Drucker, E. H.; Estabrook, P.; Pinck, D.; Ekroot, L., 1993, "Integration of Mobil Satellite and Cellular Systems", https://hdl.handle.net/2014/35279, n/a, JPL Open Repository
By integrating the ground based infrastructure component of a mobile satellite system with the infrastructure systems of terrestrial 800 MHz cellular service providers, a seamless network of universal coverage can be established. |
Jan 1, 1993
Moreno, M. A., 1993, "Venus: Surprising Revelations from the Magellan Spacecraft", https://hdl.handle.net/2014/35588, UNKNOWN, JPL Open Repository
The morning star, the same one that illuminates the dew on the Argentine Pampas, the |
Jan 1, 1993
Hogerheiden, J.; Ciminera, M.; Jue, G., 1993, "Improved Planar Spiral Transformer Theory Applied to a Miniature Lumped Element Quadrature Hybrid", https://hdl.handle.net/2014/36670, IEEE Microwave Theory and Techniques, JPL Open Repository
A MMIC compatible lumped element model is derived for symmetric width, uniformly coupled transmission lines. |
Jan 1, 1993
Halpern, D., 1993, "Progress of Space Studies of the Earthճ Surface, Meteorology, and Climate 1992- 1993", https://hdl.handle.net/2014/36478, ['Highlights in Space: Progress in Space Science, Technology and Applications 1994', 'United Nations, New York'], JPL Open Repository
This report briefly summarizes the progress made by satellite-dependent systems that are necessary to accomplish global earth monitoring and associated studies of the interactions between the earth's atmosphere, land surface, and ocean. |
Jan 1, 1993
Al-Jumaily, G.; Bennett, J.; Coulter, D.; Raouf, N., 1993, "Optical Scattering and Microroughness of Gold and Platinum Coatings", https://hdl.handle.net/2014/34833, Applied Optics, JPL Open Repository
Coatings deposited using ion beam deposition have lower optical scattering and related surface microroughness. |
Jan 1, 1993
Calhoun, Mulcolm; Kuhnle, Paul, 1993, "Ultrastable Reference Frequency Distribution Utilizing a Fiber Optic Link", https://hdl.handle.net/2014/34804, USA, JPL Open Repository
The Frequency Standards Laboratory at the Jet Propulsion Laboratory (JPL) is responsible for the generation and distribution of ultra-stable reference frequency in NASA's Deep space Network (DSN), |
Jan 1, 1993
Dugdale, R.; Wilkerson, F.; Halpern, D.; Chavez, F.; Barder, R., 1993, "Remote Sensing of Seasonal and Annual Variation of Equatorial New Production: A Model for Global Estimates", https://hdl.handle.net/2014/35376, Advances in Space Research, JPL Open Repository
Sea-surface temperatures (SSTs) are strongly correlated with surface nitrate concentrations in coastal upwelling regions. Upwelling also occurs in the equatorial Pacific; correlations between temperature and nitrate concentration are strong. The University of Miami weekly average... |
Jan 1, 1993
Choudhury, D.; Raisanen, A.; Smith, R.; Frerking, M., 1993, "Experimental Evaluation and Theoretical Analysis of Back-to-Back Barrier-N-N+(bbBNN) Varactor Frequency Multipliers for Millimeter and Submillimeter Wave Applications", https://hdl.handle.net/2014/35434, IEEE, JPL Open Repository
This paper describes the performance of planar back-to-back Barrier-N-N+(bbBNN) devices for millimeter and submillimeter wave multiplier applications. |
Jan 1, 1993
Goldstein, R. M.; Engelhardt, H.; Kamb, B.; Frolich, R. M., 1993, "Satellite Radar Interferometry for Monitoring Ice-Sheet Motion: Application to an Antarctic Ice Stream", https://hdl.handle.net/2014/35606, Science, JPL Open Repository
As a new means of monitoring the flow velocities and grounding-line positions of ice streams, which are indicators of response of the Antarctic and Greenland ice sheets to climatic change or internal instability, the method of satellite radar interferometry (SRI) is here proposed... |
Jan 1, 1993
Mehdi, I.; Siegel, P.; Mazed, M., 1993, "Fabrication and Characterization of Planar Integrated Schottky Devices for Very High Frequency Mixers", https://hdl.handle.net/2014/35930, UNKNOWN, JPL Open Repository
Many millimeter-wave mixers and frequency multipliers today still employ a whisker contacted Schottky diode as the nonlinear device. |