41,601 to 41,610 of 41,923 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
Israelsson, U. E.; Strayer, D. M.; Chui, T. C. P.; Duncan, R. V., 1993, "Dynamic Measurements Near the Lambda-point in a Low-G Simulator on the Ground", https://hdl.handle.net/2014/35028, ['Physica B', 'LT-20 Low Temperature Physics Conference', 'Eugene, Oregon'], JPL Open Repository
The properties of liquid helium very near the lambda-transition in the presence of a heat current has received recent theoretical and experimental attention. In this regime, gravity induced pressure effects place severe constraints on the types of experiments that can be performe... |
Jan 1, 1993
Kuiper, T. B. H.; Whiteoak, J. B.; Peng, R.-S.; Peters, W. L. III.; Reynolds, J. E., 1993, "Refrigeration of the 18.3 GHz C_3H_2 Transition in Dark Clouds G1.6-0.25", https://hdl.handle.net/2014/35754, Astrophysical Journal (Letters), JPL Open Repository
We have observed the 1_(10)-1_(01) (18.3 GHz) transition of orthocyclopropenylidene, C_(-3)H_(-2), at 24 positions in the unusual dense cloud G1.6- 0.025. Except for one position, the transition is refrigerated, a phenomenon which has not been seen in this transition before. |
Jan 1, 1993
Madore, B.; Sun, H.; Bennett, J.; Corwin, J. Jr.; Helou, G.; Lague, C.; Schmitz, M.; Wu, X., 1993, "Revised Sizes and Positions for the Mailyan Dwarf Galaxy Cataolgue", https://hdl.handle.net/2014/35885, JPL Open Repository
This paper presents new positions, revised sizes, and sample cross-identifications for dwarf galaxies discovered and published by Mailyan in 1973. |
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
Bourhill, G.; Bredas, J-L.; Cheng, L-T.; Marder, S. R.; Meyers, F.; Perry, J. W.; Tiemann, B. G., 1993, "Experimental Demonstration of the Dependence of the First Hyperpolarizability of Donor-Acceptor Substituted Polyenes on the Ground-State Polarization and Bond Length Alternation", https://hdl.handle.net/2014/36576, NA, JPL Open Repository
The dependence of the product of the first hyperpolarizability, beta, and the ground-state dipole moment, mu, for a series of donor-acceptor polyenes with a large range of ground-state polarization, was measured in a variety of solvents by electric field induced second harmonic g... |
Jan 1, 1993
Gao, B. C.; Goetz, A. F. H.; Westwater, E. R.; Conel, C. E.; Green, R. O., 1993, "Possible Near-IR Channels for Remote Sensing Precipitable Water Vapor from Geostationary Satellite Platforms", https://hdl.handle.net/2014/35960, ['Future Publication', 'American Meteorology Society', 'USA'], JPL Open Repository
Remote sensing of tropospheric water vapor profiles from current geostationary weather satellites are made using a few broadband infrared (IR) channels in the 6 to 13- micrometers region. Uncertainties greater than 20 percent exist in derived water vapor values just above the sur... |
Jan 1, 1993
Pagani, L.; Langer, W. D.; Castets, S., 1993, "Detection of the Molecular Oxygen Isotopomer ^(16)O^(18)O in Interstellar Clouds", https://hdl.handle.net/2014/34965, Astronomy and Astrophysics, JPL Open Repository
We report the first detection of molecular oxygen in interstellar clouds by observation |
Jan 1, 1993
Halpern, D.; Wentz, F., 1993, "['A 1987 - 1993 Composite SSMI Surface Wind Speed Data Set Created From Two Satellites', 'Geophysics, Oceanography']", https://hdl.handle.net/2014/35805, ['EOS, Transaction of the American Geophysical Union', 'American Geophysical Union', 'San Francisco'], JPL Open Repository
Development of decade-long time series of global surface wind measurements for studies ofseasonal-to-interannual climate variability presents unique challenges for space- borne instrumentationbecause of the necessity to combine data sets of 3- to 5-year lifetimes. Before the firs... |
Jan 1, 1993
Israelsson, U. E.; Strayer, D. M.; Chui, T. C. P.; Larson, M.; Duncan, R. V., 1993, "Dynamic Measurements Near the Lambda-point in a Low-gravity Simulator on the Ground", https://hdl.handle.net/2014/35210, ['Physica B', 'LT-20 Low Temperature Physics Conference', 'Eugene, Oregon'], JPL Open Repository
The properties of liquid helium very near the lambda-transition in the presence of a heat current has received recent theoretical and experimental attention. In this regime, gravity induced pressure effects place severe constraints on the types of experiments that can be performe... |