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  • OPTICS  (3)
  • OCEANOGRAPHY  (2)
  • BIOSCIENCES  (1)
  • MATHEMATICS AND INFORMATION SCIENCES  (1)
  • 1
    Publikationsdatum: 2019-06-28
    Beschreibung: Multipurpose Interactive NASA Information System (MINIS) is data management system capable of retrieving descriptive data from LANDSAT photos. General enough to be used with other user-defined data bases, interactive data management and information retrieval system was especially developed for small and medium-sized computers. It uses free-form data base that allows one to create entirely new and different data bases and to control format of output products.
    Schlagwort(e): MATHEMATICS AND INFORMATION SCIENCES
    Materialart: MFS-23753 , NASA Tech Briefs (ISSN 0145-319X); 4; 2; P. 307
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
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    In:  Other Sources
    Publikationsdatum: 2019-07-13
    Beschreibung: The problem of making very large glass mirrors for astronomical telescopes is examined, and the advantages of honeycomb mirrors made of borosilicate glass are discussed. Thermal gradients in the glass that degrade the figure of thick borosilicate mirrors during use can be largely eliminated in a honeycomb structure by internal ventilation (in air) or careful control of the radiation environment (in space). It is expected that ground-based telescopes with honeycomb mirrors will give better images than those with solid mirrors. Materials, techniques, and the experience that has been gained making trial mirrors and test castings as part of a program to develop 8-10-m-diameter lightweight mirrors are discussed.
    Schlagwort(e): OPTICS
    Materialart: International Conference on Advanced Technology Optical Telescopes; Mar 11, 1982 - Mar 13, 1982; Tucson, AZ
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Publikationsdatum: 2019-07-13
    Beschreibung: The distribution and concentrations of the standing crop of phytoplankton and nutrient salts in the Gulf of Mexico and the Caribbean Sea were investigated to provide ground truth for correlating temperature and chlorophyll-a measurements with observations from NASA U-2 aircraft equipped with specially designed sensors for measuring ocean color phenomena. The physical, chemical, and biological data obtained is summarized. Sampling procedures and methods used for determining plant pigments, species composition of phytoplankton, nutrient salt analysis, and the euphotic zones are described.
    Schlagwort(e): OCEANOGRAPHY
    Materialart: NASA-CR-156688
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Publikationsdatum: 2019-06-27
    Beschreibung: Structural phospholipoprotein isolated from hydrogenomonas facilis and neurospora crassa
    Schlagwort(e): BIOSCIENCES
    Materialart: ; ATA UNIVERSITY, BULL
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
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    In:  Other Sources
    Publikationsdatum: 2019-07-13
    Beschreibung: Single silica fibers of the type developed for communications are useful in the design of astronomical spectrographs. They can be used to couple light from many objects over a wide field to a single spectrograph, or to eliminate wavelength errors from image motion and gravitational flexure. For many applications it will be advantageous to use small lenses to make the most efficient coupling into and out of a fiber. If the telescope pupil is imaged on the fiber core, an efficient coupling can be made that preserves image size over a certain range. This method is demonstrated by a laboratory test using sapphire spheres as coupling lenses.
    Schlagwort(e): OPTICS
    Materialart: Instrumentation in astronomy V; Sep 07, 1983 - Sep 09, 1983; London
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Publikationsdatum: 2019-07-13
    Beschreibung: The making of large astronomical mirrors with borosilicate glass honeycomb structure is discussed. Particular attention is given to a single casting technique for making borosilicate honeycomb mirror blanks up to 7 meters in diameter. Current work on the development of this technique involves the casting of blanks 60 cm in diameter which have the full thickness (33 cm), cell size (15 cm), and faceplate thickness (2.5 cm) needed for a 1.8-m mirror.
    Schlagwort(e): OPTICS
    Materialart: Instrumentation for astronomy with large optical telescopes; Sep 08, 1981 - Sep 10, 1981; Zelenchukskaya; USSR
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Publikationsdatum: 2019-07-13
    Beschreibung: The paper discusses an oceanographic remote sensing program conducted aboard the R/V Calypso in the Gulf of Mexico and the Caribbean Sea to provide information for correlating ocean measurements with remotely sensed observations. Remote sensors on satellites and aircraft are used as operations and experiment planning tools as well as for scientific data acquisition. Emphasis is on providing surface-truth measurements for OCS flights and on investigating the area of the Gulf affected by the outflow of the Mississippi River. The discussion covers the shipboard instrumentation, ocean color scanner data acquisition and results, NOAA/VHRR data analysis approach, and Landsat and APT/ATS as planning tools. The research effort has demonstrated the feasibility of using satellite data as a supportive method to aid an oceanographic research vessel on a near real-time basis.
    Schlagwort(e): OCEANOGRAPHY
    Materialart: International Symposium on Remote Sensing of Environment; Oct 06, 1975 - Oct 10, 1975; Ann Arbor, MI
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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