1 to 10 of 42,142 Results
Nov 24, 1947
Rannie, W.D.; Dunn, Louis G.; Millikan, Clark B., 1947, "A simplified theory of porous wall cooling", https://hdl.handle.net/2014/45706, Jet Propulsion Laboratory, Pasadena, California, November 24, 1947, JPL Open Repository
No abstract provided |
May 21, 1974
Panagiotacoupulos, N. D.; Zielenbach, J. W.; Duesing, R. W., 1974, "An introduction to JPL's orbit determination program", https://hdl.handle.net/2014/41358, UNKNOWN, JPL Open Repository
This document describes in general terms the spacecraft navigation process at JPL and the institutional elements involved in this effort. It cutlines the major computer and software systems used and indicates the basic functions of each of these components. It provides a thumbnai... |
Jun 1, 1981
McCarthy, John; Ferrall, Joseph; Charng, Thomas; Houseman, John, 1981, "Assessment of advanced coal gasification processes", https://hdl.handle.net/2014/40036, UNKNOWN, JPL Open Repository
A technical assessment of the following advanced coal gasification processes: AVCO High Throughput Gasification (HTG) Process; Bell Single-Stage High Mass Flux (HMF) Process; Cities Service/Rockwell (CS/R) Hydrogasification Process; Exxon Catalytic Coal Gasification (CCG) Process... |
Jul 15, 1981
UNKNOWN, 1981, "Progress Report 18 for the period February to July 1981 and Proceedings of the 18th Project Integration Meeting.", https://hdl.handle.net/2014/41875, The 18th Project Integration Meeting, Pasadena, California, July 15-16, 1981, JPL Open Repository
Progress in the low cost solar array project during the period February to July 1981 is reported. Included are: (1) project analysis and integration; (2) technology development in silicon material, large area silicon sheer and encapsulation; (3) process development; (4) engineeri... |
Feb 1, 1989
Thomas, J. B., 1989, "An analysis of digital phase-locked loops", https://hdl.handle.net/2014/40039, UNKNOWN, JPL Open Repository
This report focuses on second-order digital phase-locked loops (DPLLs) with uniformly sampled input, an amplitude-insenstive phase extractor and a conventional loop filter. |
Sep 1, 1989
Larson, S. M.; Edberg, S. J.; Levy, D. H., 1989, "The Modern Role of Visual Observations of Comets", https://hdl.handle.net/2014/35031, USA, JPL Open Repository
This paper reviews the role of past and future visual observations in cometary research. The Strengths and limitations of visual observations are explored for the benefit of both investigators who might have to use them and observers who wish to make real contributions to the fie... |
Jan 1, 1992
Gonzalez, W., 1992, "Terrestrial Response to Eruptive Solar Flares: Geomagnetic Storms", https://hdl.handle.net/2014/36708, JPL Open Repository
This paper describes the interplanetary structures that are associated with the large-amplitude and long-duration negative B subscript z fields that are found in the sheath field and/or driver gas regions of the shock and are thought to be the main cause of the intense storms. |
Jan 1, 1992
Staehle, R. L.; Burke, J. D.; Snyder, G. C.; Dowling, R.; Spudis, P. D., 1992, "Lunar Base Siting", https://hdl.handle.net/2014/36678, UNKNOWN, JPL Open Repository
There are widely dispersed lunar sites of interest for known and potential resources, selenology and observatories. Discriminating characteristics include certain geologic and topographic features, local mineralogy and petrology, solar illumination, view of Earth and the celestri... |
Jan 1, 1992
Fossum, Eric R., 1992, "Smart Focal-Plane Technology for Micro-Instruments and Micro-Rovers", https://hdl.handle.net/2014/35139, ['Workshop Proceedings - Microtechnology and Applications to Space Systems', 'Pasadena, CA'], JPL Open Repository
It is inevitable that micro-instruments and micro-rovers for space exploration will contain one or more focal-plane arrays for imaging spectroscopy or navigation. In this paper, we explore the state-if-the-art in focal-plane technology for visible sensors. Also discussed is prese... |
Jan 1, 1992
Mack, L., 1992, "Effect of Cooling on Boundary-Layer Stability at Mach Number 3", https://hdl.handle.net/2014/36709, JPL Open Repository
This paper describes the calculation of the effect of wall cooling on the instability of a two-dimensional, flat-plate supersonic boundary layer under stratospheric flight conditions at Mach 3 using both the inviscid and viscous linear stability theories. |