41,771 to 41,780 of 42,443 Results
May 24, 1993
Manney, G.; Froidevaux, L.; Elson, L.; Read, W.; Waters, J.; Zurek, R., 1993, "The Evolution of UARS MLS Ozone in Relation to the Northern Hemisphere Polar Vortex", https://hdl.handle.net/2014/34995, ['American Geophysical Union', 'Baltimore, Maryland, USA'], JPL Open Repository
The evolution of ozone observed by UARS MLS in the Northern Hemisphere polar vortex is shown as a function of time throughout the stratosphere, for the 1991-1992 and 1992-1993 winters. |
May 24, 1993
Buratti, Bonnie J.; Mosher, Joel A., 1993, "The Dark Side of Iapetus: New Evidence for an Exogenous Origin", https://hdl.handle.net/2014/34971, Baltimore, MD, USA, JPL Open Repository
No abstract provided |
May 24, 1993
Weitz, C.M.; Saunders, R.S.; Plaut, J.J.; Elachi, C.; Moore, H.J., 1993, "(abstract) Radiophysical Properties of Venusian Impact Craters", https://hdl.handle.net/2014/35004, Baltimore, MD, JPL Open Repository
An analysis of 222 large (greater than 20-km-diameter) impact craters on Venus using both cycle 1 and cycle 2 Magellan data is being conducted to determine the radiophysical properties (i.e., backscatter cross section, emissivity, reflectivity, rms slope) of the craters and to se... |
May 24, 1993
Meehan, T.K.; Lindqwister, Ulf J., 1993, "One Milimeter Horizontal Precision Over a 41 KM Baseline Using TurboRogue P-Codeless Data", https://hdl.handle.net/2014/34960, Baltimore, MD, USA, JPL Open Repository
No abstract provided |
May 23, 1993
Lee, Ho-kyoung; Divsalar, Dariush; Weber, Charles, 1993, "Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4", https://hdl.handle.net/2014/35200, Geneva, Switzerland, JPL Open Repository
It is well known that trellis codded modulation schemes using multidimensional constellations for PSK and QAM have a number of advantages over the more common two dimensional schemes. |
May 23, 1993
Lee, Ho-Kyoung; Divsalar, Dariush; Weber, Charles, 1993, "Trellis Coding of Two Consecutive Full Response 4-ary CPFSK with Modulation Index 1/4", https://hdl.handle.net/2014/34903, Geneva/Switzerland, JPL Open Repository
It is well known that trellis codded modulation schemes using multidimentional constellations for MPSK and QAM have a number of advantages, such as improved performance, over the more common two dimensional schemes [1,2]. |
May 23, 1993
Stimson, Philip A.; Dengler, Robert J.; LeDuc, Henry G.; Seigel, Peter H., 1993, "A Prototype Quasi-Optical SIS Array Receiver", https://hdl.handle.net/2014/36618, San Diego, California, USA, JPL Open Repository
We report measurements on a prototype SIS array receiver consisting of a ten-element dipole antenna array with half square micron niobium SIS junctions. |
May 22, 1993
Wang, Zhong, 1993, "(abstract) Supernova Remnant and Molecular Clouds", https://hdl.handle.net/2014/35155, Xian, China, JPL Open Repository
Upon impact of the shockwaves generated by a supernova remnant, molecular gas and the associated dust grains are substantially excited and become prominent sources of infrared emission. Recent studies of such interactions, utilizing the infrared data and information from other wa... |
May 21, 1993
Barba, Mary Ellen, 1993, "Evidence for Low Mass Star Formation in Cooling Flow Galaxies", https://hdl.handle.net/2014/35429, USA, JPL Open Repository
Evidence is presented based on narrow band optical and near-IR imaging that field and cluster cooling flow galaxies are enriched in low mass stars, the result of recent, truncated IMF star formation from accreting gas. |
May 21, 1993
Pildis, Rachel A.; Bregman, Joel N.; Schombert, James M., 1993, "Extraplanar Emission-Line Gas in NGC 891", https://hdl.handle.net/2014/35430, USA, JPL Open Repository
We have used spectroscopy and high resolution imaging to study the disk-halo interaction in the edge-on spiral galaxy NGC 891, which is known to have extraplanar gas. |