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  • INSTRUMENTATION AND PHOTOGRAPHY  (114)
  • STRUCTURAL MECHANICS  (61)
  • ASTROPHYSICS
  • 1970-1974  (153)
  • 1960-1964  (22)
  • 1973  (153)
  • 1963  (22)
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  • 1970-1974  (153)
  • 1960-1964  (22)
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  • 1
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    BUCLAP2: A computer program for instability analysis of laminated long plates subjected to combined inplane loads. User's manual (1973)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: The usage of the computer program BUCLAP2 is described. The program is intended for linear instability analysis of long, rectangular flat and curved laminated plates with arbitrary orientation of orthotropic axes in each layer. The loadings considered are combinations of inplane normal and shear loads. Arbitray elastic boundary conditions are included for the sides of the plate Instructions for use of the program are included along with Input data requirements, output information, and sample problems. For program description, see .
    Schlagwort(e): STRUCTURAL MECHANICS
    Materialart: NASA-CR-132298 , D6-60187
    Format: application/pdf
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  • 2
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    BUCLAP2: A computer program for instability analysis of laminated long plates subjected to combined inplane loads (1973)
    In:  CASI
    Details
    Publikationsdatum: 2019-06-27
    Beschreibung: This program description document describes the program structure and the design details of a CDC 6600 FORTRAN 4 digital computer program, BUCLAP2, which uses minimum energy principles to do an elastic stability analysis of curved and flat laminated rectangular long plates subjected to combined inplane normal and shear loads. Given the geometry, the material properties, and slected boundary conditions for the plate element, the program calculates the minimum buckling load for various wave lengths. The two parallel ends of the program calculates the minimum buckling load for various wave lengths. The two parallel ends of the long plate must be simply supported and arbitrary elastic boundary conditions may be imposed along either one or both external longitudinal sides. For guide to program use, see
    Schlagwort(e): STRUCTURAL MECHANICS
    Materialart: NASA-CR-132299
    Format: application/pdf
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  • 3
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    Carbon monoxide detector (1973)
    In:  CASI
    Details
    Publikationsdatum: 2019-07-13
    Beschreibung: A sensitive carbon monoxide detector, developed specifically for spacecraft use, is described. An instrument range of 0 to 60 ppm CO in air was devised. The fuel cell type detector is used as a highly sensitive electrolysis cell for electrochemically detecting gases. The concept of an electrochemical CO detector is discussed and the CO oxidation behavior in phosphoric and sulfuric acid electrolytes is reported.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: NASA-CR-120171
    Format: application/pdf
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  • 4
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    Analysis of the dynamics and frequency spectrum synthesis of an optical-mechanical scanning device (1973)
    In:  CASI
    Details
    Publikationsdatum: 2006-03-28
    Beschreibung: A two-coordinate optical-mechanical scanning device (OMSD), the operating unit of which is a scanning disk, with directional and focusing optics and a board, on which the data carrier is placed, is examined. The disk and board are kinematically connected by a transmission mechanism, consisting of a worm and complex gear drive and a tightening screw-nut with correcting device, and it is run by a synchronous type motor. The dynamic errors in the system depend, first, on irregularities in rotation of the disk, fluctuations in its axis and vibrations of the table in the plane parallel to the plane of the disk. The basic sources of the fluctuations referred to above are residual disbalance of the rotor and other rotating masses, the periodic component of the driving torque of the synchronous motor, variability in the resistance, kinematic errors in the drive and other things. The fluctuations can be transmitted to the operating units through the kinematic link as a flexural-torsional system, as well as through vibrations of the housing of the device.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: Cybernetic Diagnostics of Mech. Systems with Vibro-acoustic Phenomena (NASA-TT-F-14899); p 301-305
    Format: text
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  • 5
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    Structural analysis of vibroacoustical processes (1973)
    In:  CASI
    Details
    Publikationsdatum: 2006-03-28
    Beschreibung: The method of automatic identification of acoustical signals, by means of the segmentation was used to investigate noises and vibrations in machines and mechanisms, for cybernetic diagnostics. The structural analysis consists of presentation of a noise or vibroacoustical signal as a sequence of segments, determined by the time quantization, in which each segment is characterized by specific spectral characteristics. The structural spectrum is plotted as a histogram of the segments, also as a relation of the probability density of appearance of a segment to the segment type. It is assumed that the conditions of ergodic processes are maintained.
    Schlagwort(e): STRUCTURAL MECHANICS
    Materialart: Cybernetic Diagnostics of Mech. Systems with Vibro-acoustic Phenomena (NASA-TT-F-14899); p 179-180
    Format: text
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  • 6
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    Mariner 9 ultraviolet spectrometer experiment: Seasonal variation of ozone on Mars (1973)
    In:  CASI
    Details
    Publikationsdatum: 2006-03-27
    Beschreibung: On Mars, the Mariner observations show a twenty-fold variation in the amount of ozone, depending on the presence or absence of another minor constituent, water vapor, in the atmosphere. In the evolution of earth's primitive atmosphere, the formation of an ozone layer may have played an important role in the prebiotic chemistry that took place on the surface. The seasonal formation and disappearance of ozone in the contemporary Martian atmosphere may be of consequence in any prebiotic chemistry that may be occurring there.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: JPL Mariner Mars 1971 Proj., Vol. 4; p 369-372
    Format: text
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  • 7
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    A high-resolution Fourier-transform infrared spectrometer. (1973)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: We have developed a Fourier-transform infrared spectrometer having a resolution of 0.5/cm over the range of wavelength from 1 to 5.5 microns. It has been used to observe the sun over this wavelength range from a Lear Jet flying at an altitude of 14 km, and to observe a number of stars from the ground, using the 229-cm telescope of the Steward Observatory and the 152-cm aluminum-mirror telescope at the Observatorio Astronomico Nacional in the Sierra de San Pedro Martir, Baja California, Mexico. The solar spectrum is given here, while the ground-based spectra are being published separately.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: Astronomical Society of the Pacific; vol. 85
    Format: text
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  • 8
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    Holographic motion picture camera allows front surface detail to be recorded in real time using a continuous wave laser. (1973)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: Applied Optics; 12; Apr. 197
    Format: text
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  • 9
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    Anisotropic detector system for the measurement of gamma-ray source position (1973)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: Detection efficiencies of cylindrical detectors for various gamma ray photon angular distributions in the energy range from .10 MeV to 15 MeV are studied. It was found that a properly chosen cylindrical crystal can produce a significantly modulated count rate as a function of angle when rotated in the anisotropic flux, The studies further indicate that simple detector systems can be used on small satellites for the determination of a gamma ray source position. Results are outlined and extended to examine source resolution angles for a practical size detector.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: Goddard Contrib. to the Los Alamos Conf. on Transient Cosmic Gamma and X-ray Sources; 10 p
    Format: text
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  • 10
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    Investigation of atmospheric effects in image transfer (1973)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-16
    Beschreibung: Investigations have been directed mainly toward: (1) theoretical work oriented toward computations of the effects of atmospheric aerosols on the transfer of images through the atmosphere; (2) measurements of the polarization field in the cloud-free atmosphere as an indicator of the existence and characteristics of atmospheric aerosols; and (3) the design of a video-polarizer system for the detection and display of the polarization field of light utilized in remote sensing of the environment. In addition, a camera system is under development for characterizing the polarization properties of a scene (landscape, city, etc.) by photographic means.
    Schlagwort(e): INSTRUMENTATION AND PHOTOGRAPHY
    Materialart: An Integrated Study of Earth Resources in the State of Calif. Using Remote Sensing Tech.; 33 p
    Format: text
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