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  • Polymer and Materials Science  (13,298)
  • Inorganic Chemistry  (7,653)
  • AIRCRAFT PROPULSION AND POWER  (1,211)
  • ASTRONOMY  (1,188)
  • 1975-1979  (19,460)
  • 1930-1934  (3,890)
Collection
Keywords
Publisher
Years
Year
  • 1
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    Astronomy satellite obtains first X-ray burst picture (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-65 , P79-10051
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Americans and Canadians to study February 26 eclipse (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-18 , P79-10018
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    X-ray observatory reveals extremely distant quasars (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Keywords: ASTRONOMY
    Type: NASA-NEWS-RELEASE-79-36 , P79-10036
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Investigation of air stream from combustor-liner air entry holes, 3 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Jets flowing from air entry holes of the combustor liner of a gas turbine were investigated. Cold air was supplied through the air entry holes into the primary hot gas flows. The mass flow of the primary hot gas and issuing jets was measured, and the behavior of the air jets was studied by the measurement of the temperature distribution of the gas mixture. The air jets flowing from three circular air entry holes, single streamwise long holes, and two opposing circular holes, parallel to the primary flow were studied along with the effects of jet and gas stream velocities, and of gas temperature. The discharge coefficient, the maximum penetration of the jets, the jet flow path, the mixing of the jets, and temperature distribution across the jets were investigated. Empirical expressions which describe the characteristics of the jets under the conditions of the experiments were formulated.
    Keywords: AIRCRAFT PROPULSION AND POWER
    Type: NASA-TM-75430 , NAL-TR-369
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    International Ultraviolet Explorer (IUE) Post Launch Report 2 (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: The International Ultraviolet Explorer (IUE), an Explorer class ultraviolet astronomy mission, is an international cooperative program between the United States, the United Kingdom (UK), and the European Space Agency (ESA) which provides for a single launch into geosynchronous orbit to conduct spectral distribution studies of celestial and solar system ultraviolet sources. The spacecraft and scientific instruments were designed and fabricated at the Goddard Space Flight Center. The spectrograph camera was provided by the UK; ESA provided the solar array as well as the European ground station. The IUE observatory system was designed to functionally resemble a ground-based optical observatory at which guest observers could execute observing programs in real time. Observatory performance substantially exceeded design and mission objectives. The secondary mission objectives were also met.
    Keywords: ASTRONOMY
    Type: NASA-TM-80471 , S-868-78-03 , REPT-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    A flaring X-ray pulsar in Dorado (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A study of unusual gamma-ray bursts detected on March 5 and March 6, 1979 in the KONUS experiment on the Venera 11 and Venera 12 spacecraft shows their source to be flaring X-ray pulsar in Dorado.
    Keywords: ASTRONOMY
    Type: NASA-TM-75658 , REPT-617
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    UBVR observation of V1357 Cyg = Cyg X-1. Search of the optical radiation of the accretion disk (1979)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Data from 30 nights of V 1357 Cyg observations in July, August, and September of 1977 are presented. The contribution of the disk to the optic brightness of the system is computed with regard for the heating of its surface by ultraviolet radiation from V 1357 Cyg and X-ray radiation from Cyg X-1. The disk radiation explains the irregular variability in the system brightness. The possibility of the eclipse of the star by the disk and the disk by the star is discussed.
    Keywords: ASTRONOMY
    Type: NASA-TM-75677 , PR-408
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    The radio telescope RATAN 600 (1978)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: A six-meter radio antenna having 900 reflector elements arranged on a 579 -meter diameter circle and located in the northern part of the Caucasian Mountains is described. The elements are about 7.4 m by 2 m resulting in a total reflector surface of about 10,000 sq m. Individual elements can be adjusted by changing 260 screws and can be rotated both horizontally and vertically as well as being moved translationally in the radial direction. The circular area is equipped with a grid of tracks where four asymmetric cylindrical paraboloids serving as subreflectors are located. The directional profile or observational direction of the antenna is achieved by shifting the subreflectors and changing the position of the reflecting elements with respect to the subreflectors. Different radio sources can be observed at the same time by using different subreflectors and their associated reflector sectors. Each subreflector is connected to a receiving station. Capabilities for spectroscopic observation are discussed.
    Keywords: ASTRONOMY
    Type: NASA-TM-75396
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Propulsion-airframe interactions predictability (1978)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: An illustration of the possible magnitude of the transonic performance prediction problem is shown. These results derived from a careful and systematic set of tests run on a jet effects model, an aerodynamic and force model, and a pressure model, evaluated test techniques and wind tunnel effects. The results were then carefully compared with flight test data where significant discrepancies in zero-lift drag were observed. A vigorous review of the test techniques identified a number of potential error sources. Some of these were thought to be aircraft roughness and protuberances, tunnel anomalies, sting/model support corrections, and hot gas effects. In addition, there were questions on model metric splitline location and magnitude of corrections for scale and Reynolds number. Flight test inlet/engine characteristics were thought to differ, also, from those of the calibration settings in the ground facilities.
    Keywords: AIRCRAFT PROPULSION AND POWER
    Type: AGARD Performance Prediction Methods; 20 p
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    Low cycle fatigue in turbines (1978)
    In:  CASI
    Details
    Publication Date: 2019-08-28
    Description: Behavior of certain components at low-cycle fatigue is a parameter related to the conditions of use of turbines, to the technology of engine production and to the precision of its regulation. The laboratory takes this into account using data from sophisticated tests and rigorous analyses. The production plan includes careful examination of possible causes of premature rupture. This parameter has motivated the metallurgy industry to develop new materials and new technology.
    Keywords: AIRCRAFT PROPULSION AND POWER
    Type: NASA-TM-75264
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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