84,031 to 84,040 of 84,430 Results
Feb 1, 1993
MacNeal, P., 1993, "Structural Considerations for the Wide Field/Planetary Camera-II Articulating Fold Mirror", https://hdl.handle.net/2014/36689, ['SPIE, Adaptive Optics', 'Albuquerque, New Mexico, USA'], JPL Open Repository
The hubble space telescope was unable to meet its intended optical performance due to a spherical aberration on the primary mirror. |
Jan 31, 1993
Eldred, D.B.; Gibson, J.S.; Li, Wu-Jeng, 1993, "Identification and Active Disturbance Rejection for the JPL Phase B Test Bed", https://hdl.handle.net/2014/34990, Albuquerque, New Mexico, USA, JPL Open Repository
Active disturbance rejection to minimize optical path length error is illustrated by experimental results from the JPL Phase B Test Bed, which incorporates an interferometric sensor and a controllable trolley mounted on a flexible truss structure. The controller actively isolates... |
Jan 30, 1993
Kuo, C-P.; Glaser, R.; Garba, J., 1993, "Coldfinger Motion Suppression Using a Ceramic Applique", https://hdl.handle.net/2014/34800, ['SPIE Conference', 'Albuquerque, New Mexico, USA'], JPL Open Repository
The development of a ceramic applique for the vibration suppression of a cryocooler coldfinger is a part of technology demonstration flight experiment. |
Jan 30, 1993
Fanson, J.; Ealey, M., 1993, "Articulating Fold Mirror for the Wide-Field/Planetary Camera II", https://hdl.handle.net/2014/34932, Albuquerque, New Mexico, USA, JPL Open Repository
The Articulating Fold Mirror (AFM) is a space qualified, ultraviolet compatible device that incorporates many advanced features including a highly lightweighted mirror and electrostrictive solid state actuators that provide precise and repeatable open loop performance. The design... |
Jan 27, 1993
Pike, W.; George, T.; Fathauer, R.; Ksendzov, A.; Vasquez, R., 1993, "Microstructure and Light-Emission in Stain-Etched Si subscript xGe subscript 1-x Alloys", https://hdl.handle.net/2014/34853, Williamsburg, Virginia, USA, JPL Open Repository
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Jan 26, 1993
Leung, Kon; Jin, Michael, 1993, "Processing of Scan SAR Mode Data for RADARSAT", https://hdl.handle.net/2014/34854, IGARSS 1993, JPL Open Repository
RADARSAT is an earth observing SAR mission led by the Canadian Space |
Jan 26, 1993
Chutjian, A., 1993, "Laboratory Observations of Optical Emissions in the Interaction of Fast 0(3P) Atoms with N2H4 and HCN", https://hdl.handle.net/2014/35404, Lackland AFB, Texas, USA, JPL Open Repository
No abstract provided |
Jan 25, 1993
Hanlan, Patricia C.; Schombert, James M.; Barsony, Mary; Rakos, Karl D., 1993, "Metallicity Gradients in Elliptical Galaxies", https://hdl.handle.net/2014/35043, USA, JPL Open Repository
The study of metalicity gradients is an examination of the relics of the first epoch of star formation and, thus, another issue that metallicity gradients can address is the relationship between chemical and dynamical evolution during the initial phase of star formation. |
Jan 22, 1993
Johnson, Dean; Calhoun, Malcolm; Sydnor, Richard; Lutes, George, 1993, "A Wide-Band Fiber Optic Frequency Distribution System Employing Thermally Controlled Phase Compensation", https://hdl.handle.net/2014/34803, USA, JPL Open Repository
An active wide-band fiber optic frequency distribution system employing a thermally controlled phase compensator to stabilize phase variations induced by environmental temperature changes is described. |
Jan 20, 1993
Burns, Ronald; Baw, Clayton La; Duval, Valerie, 1993, "Lunar Scout Infrared Detector (LSIRD): Simple low-cost imaging spectrometer", https://hdl.handle.net/2014/34758, Los Angeles, California, USA, JPL Open Repository
A novel design for a compact, light weight, imaging spectrometer has been proposed for an orbiting Lunar mapping mission. Simple in design, its dual arm optical system employs a transmission grating and a dichroic mirror to provide continous two-octave spectral response. The grat... |