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  • Journals
  • Other Sources  (23,957)
  • NASA Technical Reports  (23,957)
  • INSTRUMENTATION AND PHOTOGRAPHY  (10,620)
  • SPACE RADIATION  (7,513)
  • SPACECRAFT DESIGN, TESTING AND PERFORMANCE  (5,824)
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  • Journals
  • Other Sources  (23,957)
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  • NASA Technical Reports  (23,957)
Years
  • 1
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    In:  CASI
    Publication Date: 2009-12-22
    Description: Solid propellant boosters for manned space flight
    Keywords: SPACE RADIATION
    Type: Proceedings of the National Meeting on Manned Space Flight: Unclassified Portion
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  • 2
    Publication Date: 2004-12-03
    Description: This paper reports a new balance for the measurement of three components of force - lift, drag and pitching moment - in impulsively starting flows which have a duration of about one millisecond. The basics of the design of the balance are presented and results of tests on a 15 deg semi-angle cone set at incidence in the T4 shock tunnel are compared with predictions. These results indicate that the prototype balance performs well for a 1.9 kg, 220 mm long model. Also presented are results from initial bench tests of another application of the deconvolution force balance to the measurement of thrust produced by a 2D scramjet nozzle.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Shock Tunnel Studies of Scramjet Phenomena 1993; p 107-112
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  • 3
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    In:  CASI
    Publication Date: 2004-12-03
    Description: Radiography is discussed as a method for nondestructive evaluation of internal flaws of solids. Gamma ray and X-ray equipment are described along with radiographic film, radiograph interpretation, and neutron radiography.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Nondestructive Testing; p 63-99
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  • 4
    Publication Date: 2010-10-04
    Description: Piloted simulator studies of low-speed longitudinal handling qualities of supersonic transport aircraft
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: AIAA Simulation for Aerospace Flight Conference, A Volume of Technical Papaers Presented August 26-28, 1963, Columbus, Ohio; 35-43
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  • 5
    Publication Date: 2011-09-13
    Description: Ground wind measurements and theoretical response of inertia-type anemometer
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
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  • 6
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    In:  Other Sources
    Publication Date: 2011-08-26
    Description: Selection of high thrust launch vehicles
    Keywords: SPACE RADIATION
    Type: SAE PAPER-510A
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  • 7
    Publication Date: 2011-08-24
    Description: This paper addresses the design considerations and strategies for astrophysical observations as key elements of an international solar system exploration program. Emphasis is placed on the technical and programmatic challenges and opportunities associated with an evolving program of lunar-based astronomy. Both robotic and human tended facilities are discussed ranging from relatively small meter-class transit telescopes to large interferometer and filled-aperture systems.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: Space Technology - Industrial and Commercial Applications (ISSN 0892-9270); 14; 6; p. 355-365
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  • 8
    Publication Date: 2011-08-24
    Description: High-resolution (0.01/cm) absorption spectra of lean mixtures of CH4 in dry air were recorded with the McMath-Pierce Fourier transform spectrometer (FTS) of the National Solar Observatory on Kitt Peak at various temperatures between 24 and -61 C. The spectra have been analyzed to determine the values at room temperature of pressure-broadened widths and pressure-induced shifts of more than 740 transitions. The temperature dependence of air-broadened widths and pressure-induced shifts was deduced for approx. 370 transitions in the nu(sub 1) + nu(sub 4), nu(sub 3) + nu(sub 4), and nu(sub 2) + nu(sub 3) bands of (12)CH4 located between 4118 and 4615/cm. These results were obtained by analyzing a total of 29 spectra simultaneously using a multi-spectral non-linear least-squares fitting technique. This new technique allowed the determination of correlated spectral line parameters (e.g. intensity and broadening coefficient) better than the procedure of averaging values obtained by fitting the spectra individually. This method also provided a direct determination of the uncertainties in the retrieved parameters due to random errors. For each band analysed in this study the dependence of the various spectral line parameters upon the tetrahedral symmetry species and the rotational quantum numbers of the transitions is also presented.
    Keywords: INSTRUMENTATION AND PHOTOGRAPHY
    Type: Journal of Quantitative Spectroscopy & Radiative Transfer (ISSN 0022-4073); 51; 3; p. 439-465
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  • 9
    Publication Date: 2011-08-24
    Description: A method is presented by which measured modes and frequencies from a modal test can be used to determine the location and magnitude of damage in a space struss structure. The damage is located by computing the Euclidean distances between the measured mode shapes and the best achievable eigenvectors. The best achievable eigenvectors are the projection of the measured mode shapes onto the subspace defined by the refined analytical model of the structure and the measured frequencies. Loss of both stiffness and mass properties can be located and quantified. To examine the performance of the method when experimentally measured modes are employed, various damage detection studies using a laboratory eight-bay truss structure were conducted. The method performs well even though the measurement errors inevitably make the damage location more difficult.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: AIAA Journal (ISSN 0001-1452); 32; 5; p. 1049-1057
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  • 10
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    In:  Other Sources
    Publication Date: 2011-08-24
    Description: Following the project's first major design review, some unresolved technical issues, mainly centered on details of how to integrate Russian hardware into the U.S./international space station, remain. No 'show stoppers' were found in the review. Specific open technical issues are discussed in this article.
    Keywords: SPACECRAFT DESIGN, TESTING AND PERFORMANCE
    Type: Aviation Week & Space Technology (ISSN 0005-2175); 140; 13; p. 26-27
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