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  • EARTH RESOURCES AND REMOTE SENSING  (131)
  • GEOPHYSICS  (119)
  • ENERGY PRODUCTION AND CONVERSION  (63)
  • Biochemistry and Biotechnology
  • 1995-1999
  • 1980-1984
  • 1975-1979  (332)
  • 1976  (332)
Collection
Keywords
Publisher
Years
  • 1995-1999
  • 1980-1984
  • 1975-1979  (332)
Year
  • 1
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    Applied Remote Sensing Program (ARSP) (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The activities and accomplishments of the Applied Remote Sensing Program during FY 1975-1976 are reported. The principal objective of the Applied Remote Sensing Program continues to be designed projects having specific decision-making impacts as a principal goal. These projects are carried out in cooperation and collaboration with local, state and federal agencies whose responsibilities lie with planning, zoning and environmental monitoring and/or assessment in the application of remote sensing techniques. The end result of the projects is the use by the involved agencies of remote sensing techniques in problem solving.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: NASA-CR-148324 , OALS-BULL-13
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Atmospheric ozone measurements made from B-747 airliners - Spring 1975 (1976)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Atmospheric ozone in the upper troposphere and lower stratosphere north of the equator has been registered aboard two commercial B-747 airliners during the Spring of 1975. This monitoring is part of a much broader and continuing project developed by NASA and known as the Global Atmospheric Sampling Program (GASP). Additional flight and meteorological conditions have also been automatically recorded on board concurrent with the ozone measurements. Independently-derived tropopause pressure information was available from NMC data archives and was used to identify stratospheric and tropospheric flight. The composite ozone, flight and meteorological data are reported for selected dates in March, April, and May. Attention is drawn particularly to the vertical profiles of atmospheric ozone mixing ratio as a function of both distance from the tropopause and curvature of the streamlines. The GASP observations suggest that ozone levels typical of the lower stratosphere are often embedded in the upper troposphere, principally during occasions when cyclonic wind curvature was noted.
    Keywords: GEOPHYSICS
    Type: Joint Symposium on Atmospheric Ozone; Aug 09, 1976 - Aug 17, 1976; Dresden; Germany
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Atmospheric ozone measurements made from B-747 AIRLINERS: Spring 1975 (1976)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: Atmospheric ozone in the upper troposphere and lower stratosphere north of the equator has been registered aboard two commercial B-747 airliners. The composite ozone, flight and meteorological data are reported. Attention is drawn particularly to the vertical profiles of atmospheric ozone mixing ratio as a function of both distance from the tropopause and curvature of the streamlines. The GASP observations suggest that ozone levels typical of the lower stratosphere are often embedded in the upper troposphere, principally during occassions when cyclonic wind curvature was noted.
    Keywords: GEOPHYSICS
    Type: NASA-TM-X-73675 , Joint Symp. on Atmospheric Ozone; Aug 09, 1976 - Aug 17, 1976; Dresden
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Dip coating process: Silicon sheet growth development for the large-area silicon sheet task of the low-cost silicon solar array project (1976)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The technical and economic feasibility of producing solar cell quality sheet silicon by dip-coating one surface of carbonized ceramic substrates with a thin layer of large grain polycrystalline silicon was investigated. The dip-coating methods studied were directed toward a minimum cost process with the ultimate objective of producing solar cells with a conversion efficiency of 10% or greater. The technique shows excellent promise for low cost, labor-saving, scale-up potentialities and would provide an end product of sheet silicon with a rigid and strong supportive backing. An experimental dip-coating facility was designed and constructed, several substrates were successfully dip-coated with areas as large as 25 sq cm and thicknesses of 12 micron to 250 micron. There appears to be no serious limitation on the area of a substrate that could be coated. Of the various substrate materials dip-coated, mullite appears to best satisfy the requirement of the program. An inexpensive process was developed for producing mullite in the desired geometry.
    Keywords: ENERGY PRODUCTION AND CONVERSION
    Type: NASA-CR-149242 , ERDA/JPL-954356-76/2 , AR-1
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    California coast nearshore processes study using ERTS-B data (1976)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E76-10396 , NASA-CR-148183
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    California coast nearshore processes study using ERTS-B data (1976)
    In:  CASI
    Details
    Publication Date: 2019-07-13
    Description: There are no author-identified significant results in this report.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: E76-10205 , NASA-CR-146300
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
    Electronic Resource
    Electronic Resource
    Effects of immobilization on the kinetics of enzyme-catalyzed reactions. II. Urease in a packed-column differential reactor system (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 18 (1976), S. 685-699 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Urease from Jack bean was immobilized on nonporous glass beads by covalent bonding and its kinetics were studied in a packed-column differential reactor. To facilitate comparison, the urease was immobilized by both diazo and glutaraldehyde coupling. The kinetic properties of immobilized urease were similar to those of the soluble enzyme and different immobilization methods did not appreciably alter the kinetic properties. The affects of three different amino acid activators appear to follow predictions obtained from a relatively simple competitive model, except at very low substrate levels.
    Additional Material: 10 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260180508
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    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Effects of immobilization on the kinetics of enzyme-catalyzed reactions. I. Glucose oxidase in a recirculation reactor system (1976)
    New York, NY [u.a.] : Wiley-Blackwell
    Biotechnology and Bioengineering 18 (1976), S. 669-684 
    Details
    ISSN: 0006-3592
    Keywords: Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Glucose oxidase from Aspergillus niger was immobilized on nonporous glass beads by covalent bonding and its kinetics were studied in a packed-column recycle reactor. The optimum pH of the immobilized enzyme was the same as that of soluble enzyme; however, immobilized glucose oxidase showed a sharper pH-activity profile than that of the soluble enzyme. The kinetic behavior of immobilized glucose oxidase at optimum pH and 25°C was similar to that of the soluble enzyme, but the immobilized material showed increased temperature sensitivity. Immobilized glucose oxidase showed no loss in activity on storage at 4°C for nearly ten weeks. On continuous use for 60 hr, the immobilized enzyme showed about a 40% loss in activity but no change in the kinetic constant.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bit.260180507
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    Paper (German National Licenses)
    Fulltext
  • 9
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    Geodynamics experiment MA-128 (1976)
    In:  CASI
    Details
    Publication Date: 2006-01-12
    Description: The Apollo Soyuz Test Project Geodynamics Experiment was performed to assess the feasibility of tracking and recovering high frequency components of the earth gravity field by utilizing a synchronous orbiting tracking station such as Applications Technology Satellite 6. Two prime areas of data collection were selected for this experiment. The first area is the center of the African continent, and the second area is the Indian Ocean depression centered at latitude 5 N and longitude 75 E. Preliminary results show that the detectability objective of the experiment has been achieved in both areas as well as in several additional anomalous areas around the globe. Gravity anomalies of the Karakoram and Himalayan mountain ranges of ocean trenches, and of the Diamantina depth are specific examples.
    Keywords: GEOPHYSICS
    Type: Apollo-Soyuz Test Project; 16 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    The use of remote sensing imagery for environmental land use and flood hazard mapping (1976)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Flood hazard maps have been constructed for Graham, Yuma, and Yavapai Counties in Arizona using remote sensing techniques. Watershed maps of priority areas were selected on the basis of their interest to the county planning staff and represented areas of imminent or ongoing development and those known to be subject to inundation by storm runoff. Landsat color infrared imagery at scales of 1:1,000,000, 1:500,000, and 1:250,000 was used together with high-altitude aerial photography at scales of 1:120,000 and 1:60,000 to determine drainage patterns and erosional features, soil type, and the extent and type of ground cover. The satellite imagery was used in the form of 70 mm chips for enhancement in a color additive viewer and in all available enlargement modes. Field checking served as the main backup to the interpretations. Areas with high susceptibility to flooding were determined with a high level of confidence from the remotely sensed imagery.
    Keywords: EARTH RESOURCES AND REMOTE SENSING
    Type: Journal of Environmental Sciences; 19; May-June
    Format: text
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    NASA TECHNICAL REPORTS
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