41,971 to 41,980 of 42,332 Results
Jan 1, 1993
Lin, T.; Park, J. S.; Gunapala. S. D.; Jones, E. W.; del Castillo, H. M., 1993, "Tailorable Doping-Spike PtSi Infrared Detectors Fabricated by Si Molecular Beam Epitaxy", https://hdl.handle.net/2014/36017, ['1993 International Conference on Solid State Devices and Materials', 'Chiba, Japan', 'Japan Journal of Applied Physics'], JPL Open Repository
By incorporating a 1-nm-thick p+ doping spike at the PtSi/Si interface, we have successfullydemonstrated extended cutoff wavelengths of PtSi Schottky infrared detectors. The extended cutoffwavelengths resulted from the reduced effective potential barriers due to the combined effe... |
Jan 1, 1993
Liu, Huang-Kuang; Wu, John, 1993, "An Unipolar Terminal-Attractor Based Neural Associative Memory with Adaptive Threshold and Perfect Convergence", https://hdl.handle.net/2014/34970, ['Optics Letters', 'Optical Society of America: Neural Networks', 'Denver, CO'], JPL Open Repository
For the first time, a unipolar terminal-attractor based neural associative memory (TABAM)system with adaptive threshold and perfect convergence is presented. By adaptively setting thethreshold values for the dynamic iteration for the unipolar binary neuron states with terminal-at... |
Jan 1, 1993
Lee, M.; Freedman, W.; Madore, B., 1993, "Stellar Populations in the Dwarf Elliptical Galaxy NGC 185", https://hdl.handle.net/2014/35145, JPL Open Repository
This paper presents the BVRI CCD photometry of about 5,300 stars in the central area of the dwarf elliptical galaxy NGC 185 in the Local Group. |
Jan 1, 1993
Johnson, T. V.; Matson, D. L.; Veeder, G. J.; Blaney, D. L.; Goguen, J. D., 1993, "Implication of the January 1990 Volcanic Eruption on Io for Resurfacing Rates and Energetics", https://hdl.handle.net/2014/36446, ['American Geophysical Union, Fall Meeting', 'San Francisco, CA'], JPL Open Repository
The high temperature event observed by ground based infrared radiometry of Io in January of 1990 can be modeled as an extremely active silicate lava flow which increased its area and cooled over a period of three hours. The best model at the start of the observations is a thermal... |
Jan 1, 1993
Kenny, T. W.; Kaiser, W. J.; Podosek, J. A.; Rockstad, H. K.; Reynolds, J. K.; Vote, E. C., 1993, "Micromachined Tunneling Displacement Transducers for Physical Sensors", https://hdl.handle.net/2014/35147, Journal of Vacuum Science and Technology, JPL Open Repository
We have designed and constructed a series of tunneling sensors which take advantage of the extreme position sensitivity of electron tunneling. In these sensors, a tunneling displacement transducer, based on scanning tunneling microscopy principles, is used to detect the signal-in... |
Jan 1, 1993
Carlson, R. W.; Kamp, L. W.; Baines, K. H.; Pollack, J. B.; Grinspoon, G. H.; Encrenaz, T.; Drossart, P.; Taylor, F. W., 1993, "Variations in Venus Cloud Particle Properties", https://hdl.handle.net/2014/35734, n/a, JPL Open Repository
Using Venus nightside data obtained by the Galileo Near Infrared Mapping spectrometer, we hav studied the correclation of 1.74 and 2.30 m radiation which is transmitted through the clouds. |
Jan 1, 1993
Ross, R. Jr.; Johnson, D; Mon, G.; Smedley, G., 1993, "Cryocooler Resonance Characterization", https://hdl.handle.net/2014/35793, JPL Open Repository
This paper presents the fundamental equations governing cyocooler mechanical efficiency and launch vibration response in terms of their implications for cooler design. |
Jan 1, 1993
Spencer, David A.; Salama, Ahmed H., 1993, "Computation and Application of the TOPEX/Poseidon Orbit Event File", https://hdl.handle.net/2014/34781, Victoria, B.C., Canada, JPL Open Repository
During TOPEX/POSEIDON, mission design process, the need was identified for sofware capabl of generating a predicted set or orbitala events for use in view period scheduling planning. |
Jan 1, 1993
Trajmar, S.; Wang, S.; Man, K.F.; Khakoo, M.A., 1993, "Fluorescene of Buckminsterfullerenes: UV Emission of C60+ and C70+", https://hdl.handle.net/2014/34907, UNKNOWN, JPL Open Repository
We report the first observation of UV luminescence from gaseous C60+ and C70+ buckminsterfullerenes. The emission features appear in the 275 to 340 nm wavelength region and originate from radiative decay of the excited ionic species. |
Jan 1, 1993
Manney, G.; Zurek, R., 1993, "Interhemispheric Comparison of the Development of the Stratospheric Polar Vortex During Fall: A 3-Dimensional Perspective for 1991 ??92", https://hdl.handle.net/2014/34884, JPL Open Repository
This paper examines the development of the stratospheric polar vortex ??ing National Meteorological Center data ??ring fall and early winter in the Northern Hemisphere during 1991-92, and in the Southern Hemisphere during 1992. |