84,331 to 84,340 of 84,745 Results
Feb 1, 1993
O'Neil, W., 1993, "Galileo: Challenges Enroute to Jupiter", https://hdl.handle.net/2014/34825, ['American Astronautical Society - Guidance and Control', 'Keystone, Colorado, USA'], JPL Open Repository
The Galileo spacecraft is now on its three-year direct Earth-to-Jupiter transfer trajectory. |
Feb 1, 1993
Mendis, Sunetra K.; Pain, Bedabrata; Nixon, Robert H.; Fossum, Eric R., 1993, "Design of a Low-Light-Level Image Sensor with On-Chip Sigma-Delta Analog-to- Digital Conversion", https://hdl.handle.net/2014/34949, ['SPIE/IS&T: Electronic Imaging', 'San Jose, CA'], JPL Open Repository
The design and projected performance of a low-light-level active-pixel-sensor (APS) chip with semi-parallel analog-to-digital (A/D) conversion is presented. The individual elements have been fabricated and tested using MOSIS* 2 micrometer CMOS technology, although the integrated... |
Feb 1, 1993
Phillips, R., 1993, "Scientific Research on Space Station Freedom", https://hdl.handle.net/2014/35103, Boston, Massachusetts, USA, JPL Open Repository
No abstract provided |
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. |
Feb 1, 1993
Carson, S. C.; Carswell, J. C.; McIntosh, R. E.; Li, Fuk K.; Nghiem, S. V.; Lou, S. H.; Neuman, G.; McLaughlin, David J., 1993, "Low Wind Speed Radar Backscatter Measurements at C- and Ku-Band Obtained", https://hdl.handle.net/2014/34912, Journal of Geophysical Research, JPL Open Repository
Radar backscatter measurements collected at both C- and Ku-Band during the recent |
Feb 1, 1993
Brown, T. X.; Duong, T.; Eberhardt, S. P.; Tran, M. D.; Daud, T.; Thakoor, A. P., 1993, "Learning to Classify Map Data with Cascaded VLSI Neural Network Building Block Chips", https://hdl.handle.net/2014/34856, USA, JPL Open Repository
Paper maps are an important but unwieldy data format. To increase its utility, copious amounts of map data have been scanned into a digital map knowledge base. The next task in this knowledge base is to reduce this data to its underlying feature form suitable for analysis. |
Feb 1, 1993
Sharma, P. K.; Trinh, E. H.; Man, K. F., 1993, "Containerless Processing of Molten Tin Samples in a Controlled Oxygen Environment", https://hdl.handle.net/2014/34899, Denver, Colorado, USA, JPL Open Repository
Contamination due to oxygen or oxide layer formation is a major concern in containerless processing of metallic melts. |
Feb 1, 1993
Shapiro, B.; Bhat, R.; Frauenholz, R., 1993, "Using Anomalous Along-Track Forces for Topex/Poseidon Ground Track Control", https://hdl.handle.net/2014/36056, Cocoa Beach, Florida, USA, JPL Open Repository
The TOPES/POSEIDON satellite is maintained in a nearly circular, frozen orbit at an altitude of =1336 km. and an inclination of i = 66.4, which provides an exact repeat ground track every 127 revolutions and overflies two altimetry verifications sites. |
Feb 1, 1993
Williams, A.; Seidel, D.J.; Maleki, L., 1993, "Generation of 369.4 nm Radiation by Efficient Doubling of a Diode Laser", https://hdl.handle.net/2014/34801, New Orleans, LA, JPL Open Repository
The trapped ytterbium ion frequency standard under development at JPL is designed to supply ultra-stable reference signals to be used in spacecraft tests of general relativity and other science experiments. Only diode lasers meet the requirements of low power comsumption and smal... |
Feb 1, 1993
Fossum, Eric R., 1993, "Active Pixel Sensors: Are CCD's Dinosaurs?", https://hdl.handle.net/2014/34869, ['SPIE: Electronic Imaging', 'San Jose, CA'], JPL Open Repository
Charge-coupled devices (CCD's) are presently the technology of choice for most imaging applications. In the 23 years since their invention in 1970, they have evolved to a sophisticated level of performance. However, as with all technologies, we can be certain that they will be su... |