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  • Inorganic Chemistry  (9,057)
  • INSTRUMENTATION AND PHOTOGRAPHY  (4,063)
  • 1995-1999  (1,867)
  • 1985-1989  (4,838)
  • 1970-1974  (6,415)
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  • 1
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Techniques and devices used to solve optical problems - compilation
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-5941(01)
    Format: application/pdf
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  • 2
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Design optics and technology for large spaceborne astronomical telescopes
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-233 , Apr 29, 1969 - May 01, 1969; HUNTSVILLE, AL; UNITED STATES
    Format: application/pdf
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  • 3
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Compilation of electronic test instrumentation and techniques derived from NASA programs
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-5907/02/
    Format: application/pdf
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  • 4
    Publication Date: 2019-08-28
    Description: We describe a new Fabry-Perot spectrometer that is optimized for the detection of extended, low-surface-brightness line emission from 1.4 to 2.4 microns. The instrument combines high throughput and high sensitivity, yet limits the background radiation falling on the detector. The instrument has a single 20 sec - 200 sec beam and a resolving power lambda/delta(lambda) approximately 2500. The system is background shot-noise limited in the K window and limited by a combination of read noise, dark-current shot noise, and fluctuations in the OH airglow lines in the H window. We present sample data of some of the lowest-surface-brightness H2 line emission in the near infrared obtained to date.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Astronomical Society of the Pacific, Publications (ISSN 0004-6280); 107; 708; p. 184-192
    Format: text
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  • 5
    Publication Date: 2019-08-28
    Description: In 1992, NASA will conduct a Space Shuttle-based lidar experiment at the fundamental, first, and second harmonic wavelengths of a Nd:YAG laser. A second, NASA U-2 aircraft-based experiment will measure water vapor vertical profiles in the lower atmosphere. In addition, NASA plans three space-based (polar orbit-platform) observatories, incorporating laser and electrooptics technologies covering the 280-10,000 nm spectrum, which will have long service lives with minimal servicing requirements.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Airborne and Spaceborne Lasers for Terrestrial Geophysical Sensing; Jan 14, 1988 - Jan 15, 1988; Los Angeles, CA; United States
    Format: text
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  • 6
    Publication Date: 2019-08-28
    Description: The partial pressure analyzer developed has a high absolute sensitivity and high resolution. Interaction effects, as they occur in conventional partial pressure analyzers between the heating filament for the emission of electrons and the residual gas, are suppressed by removing the heating filament from the measurement area. The electron beam is generated in an auxiliary vacuum compartment, and passes subsequently through an aperture into the ionization compartment. The probability is small, therefore, that the presence of substances produced at the heating filament by chemical reactions and thermal decompositions will have disturbing effects. The high sensitivity and resolution of the instrument are obtained with the aid of an electron path configuration of unconventional characteristics.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-TT-20059 , NAS 1.77:20059
    Format: text
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  • 7
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Technical information is presented covering the areas of: (1) analytical instrumentation useful in the analysis of physical phenomena; (2) analytical techniques used to determine the performance of materials; and (3) systems and component analyses for design and quality control.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-5957(03)
    Format: application/pdf
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  • 8
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Technical information on developments in instrumentation is arranged into four sections: (1) instrumentation for analysis; (2) analysis of matter; (3) analysis of electrical and mechanical phenomena; and (4) structural analysis. Patent information for two of the instruments described is presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-5957(02)
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  • 9
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    In:  CASI
    Publication Date: 2019-08-28
    Description: Procedures for conducting materials tests and structural analyses of aerospace components are presented as a part of the NASA technology utilization program. Some of the subjects discussed are as follows: (1) failures in cryogenic tank insulation, (2) friction characteristics of graphite and graphite-metal combinations, (3) evaluation of polymeric products in thermal-vacuum environment, (4) erosion of metals by multiple impacts with water, (5) mass loading effects on vibrated ring and shell structures, (6) nonlinear damping in structures, and (7) method for estimating reliability of randomly excited structures.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: NASA-SP-5957(01)
    Format: application/pdf
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  • 10
    Publication Date: 2019-08-28
    Description: A radiometric measuring system is described for observing solar activity, atmospheric attenuation, and atmospheric emission. Two highly directional microwave antennas are mounted side by-side on an equatorial mount which tracks the sun. One antenna is aimed directly at the sun to provide a sun temperature, and the other antenna is aimed at a slight angle to the sun antenna to provide a sky temperature reference. Signals from the two antennas are compared in a radiometric detecting system and provide information concerning solar activity and atmospheric attenuation and emission.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Format: application/pdf
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