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  • EARTH RESOURCES AND REMOTE SENSING  (283)
  • ENERGY PRODUCTION AND CONVERSION  (241)
  • Life and Medical Sciences  (127)
  • 1980-1984  (646)
  • 1960-1964
  • 1940-1944  (5)
  • 1920-1924
  • 1982  (307)
  • 1980  (339)
  • 1942  (5)
Collection
Keywords
Publisher
Years
  • 1980-1984  (646)
  • 1960-1964
  • 1940-1944  (5)
  • 1920-1924
Year
  • 1
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    Thermal mapping, geothermal source location, natural effluents and plant stress in the Mediterranean coast of Spain (1980)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Although no significant results were achieved during the report period, research continues. A sample of imagery showing thermal inertia and temperature differences over the northeastern United States and Europe was received. The project coordinator attended a TELLUS Project meeting in Ispra, Italy at which general guidelines for the future were established and the quality of the data received was discussed.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10119 , NASA-CR-164113 , PR-3
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
    Electronic Resource
    Electronic Resource
    Perturbation of the switch-on of transcriptase activity in intermediate subviral particles from reovirus (1982)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Cellular Physiology 112 (1982), S. 10-18 
    Details
    ISSN: 0021-9541
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Intermediate subviral particles (ISVP) derived from reovirus represent a simple model system for the switch-on of transcriptase function. In such particles the endogenous transcriptase is present in a switched-off form, one step removed from the switched-on state. Switch-on of transcriptase function is an active process in this system and can be triggered by K+ ions. A variety of agents which affect gene expression in cells were tested for an effect on switch-on in ISVP. Marked effects on switch-on in ISVP were observed with a diverse group of test agents, including DMSO and other solvents, BUdR, TdR, caffeine, theophylline, and temperature. The correlation in response between ISVP and cells suggests that the ISVP system may be useful as a model for studying the biochemical mechanisms underlying the perturbative effects of such agents on gene expression in cells.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcp.1041120104
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Low cost silicon-on-ceramic photovoltaic solar cells (1980)
    In:  Other Sources
    Details
    Publication Date: 2011-08-18
    Description: A technique has been developed for coating low-cost mullite-based refractory substrates with thin layers of solar cell quality silicon. The technique involves first carbonizing one surface of the ceramic and then contacting it with molten silicon. The silicon wets the carbonized surface and, under the proper thermal conditions, solidifies as a large-grained sheet. Solar cells produced from this composite silicon-on-ceramic material have exhibited total area conversion efficiencies of ten percent.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Radar and infrared remote sensing of geothermal features at Pilgrim Springs, Alaska (1982)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: High-altitude radar and thermal imagery collected by the NASA research aircraft WB57F were used to examine the structural setting and distribution of radiant temperatures of geothermal anomalies in the Pilgrim Springs, Alaska area. Like-polarized radar imagery with perpendicular look directions provides the best structural data for lineament analysis, although more than half the mapped lineaments are easily detectable on conventional aerial photography. Radiometer data and imagery from a thermal scanner were used to evaluate radiant surface temperatures, which ranged from 3 to 17 C. The evening imagery, which utilized density-slicing techniques, detected thermal anomalies associated with geothermal heat sources. The study indicates that high-altitude predawn thermal imagery may be able to locate relatively large areas of hot ground in site-specific studies in the vegetated Alaskan terrain. This imagery will probably not detect gentle lateral gradients.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Remote Sensing of Environment; 12; Nov. 198
    Format: text
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    NASA TECHNICAL REPORTS
  • 5
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    Improved definition of crustal magnetic anomalies for MAGSAT data (1982)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The routine correction of MAGSAT vector magnetometer data for external field effects such as the ring current and the daily variation by filtering long wavelength harmonics from the data is described. Separation of fields due to low altitude sources from those caused by high altitude sources is affected by means of dual harmonic expansions in the solution of Dirichlet's problem. This regression/harmonic filter procedure is applied on an orbit by orbit basis, and initial tests on MAGSAT data from orbit 1176 show reduction in external field residuals by 24.33 nT RMS in the horizontal component, and 10.95 nT RMS in the radial component.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E82-10314 , NASA-CR-168889 , NAS 1.26:168889
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Photovoltaic applications - Past and future (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: This paper presents an overview of photovoltaic systems applications since the initiation of the U.S. National Photovoltaic Program in 1975. Experiences with these applications are summarized and some conclusions are drawn. Implications for future research, technology development and application experiments are drawn from the experiences to date.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: Photovoltaic Specialists Conference; Jan 07, 1980 - Jan 10, 1980; San Diego, CA
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Comparison of diverse methods for the correction of atmospheric effects on LANDSAT and SKYLAB images (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Earth's atmosphere reduces a sensors ability in currently discriminating targets. Using radiometric correction to reduce the atmospheric effects may improve considerably the performance of an automatic image interpreter. Several methods for radiometric correction from the open literature are compared leading to the development of an atmospheric correction system.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10079 , NASA-CR-165122 , NAS 1.26:165122 , INPE-2471-PRE/160 , Reuniao Anual da SBPC; Jul 01, 1981; Salvador, Bahia
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Automatic interpretation of MSS-LANDSAT data applied to coal refuse site studies in southern Santa Catarina State, Brazil (1982)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: The coal mining district in southeastern Santa Catarina State is considered one of the most polluted areas of Brazil. The author has identified significant preliminary results on the application of MSS-LANDSAT digital data to monitor the coal refuse areas and its environmental consequences in this region.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E83-10066 , NASA-CR-169577 , NAS 1.26:169577 , INPE-2410-PRE/119 , Intern. Symp. on Remote Sensing of Environ.; Jun 02, 1982 - Jun 09, 1982; Buenos Aires
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Studies of high latitude current systems using Magsat vector data (1980)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Disturbance fields caused by global external current systems are analyzed in order to gain an improved understanding of the phydical processes which control high latitude current systems and to increase the confidence level in the identification of internal field levels. The basic approach is to: (1) categorize the vector data by those physical parameters important for investigation of external current systems; (2) map the disturbances for appropriate conditions; (3) model the currents which might cause the mapped disturbances; and (4) correlate results with data from other sources. It is concluded that the Magsat data set appears to have remarkably high precision and quality and should permit major advances to be made in modeling current distribution at high latitudes in the ionosphere and magnetosphere.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E81-10085 , NASA-CR-163785 , PR-1
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
    Electronic Resource
    Electronic Resource
    Setiferous structures of male coleoptera (1982)
    New York, NY : Wiley-Blackwell
    Journal of Morphology 173 (1982), S. 43-72 
    Details
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A scanning electron microscopy study was made of the male setiferous sex patches and analogous structures in 11 families of Coleoptera (Anthribidae, Bruchidae, Ciidae, Cleridae, Coccinellidae, Dermestidae, Leiodidae, Ptinidae, Staphylinidae, Tenebrionidae, and Ostomatidae). These secondary sexual characters appear to have several features in common including relatively long, often ridged, setae, cuticular ducts (frequently cribriform pore plates), and the production of a secretion. It is suggested that these structures may all be concerned with the production, release, and dissemination of pheromones.
    Additional Material: 21 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jmor.1051730106
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    Paper (German National Licenses)
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