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  • PROPULSION SYSTEMS  (296)
  • BIOTECHNOLOGY  (285)
  • 1970-1974  (581)
  • 1935-1939
  • 1
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    An evaluation of Orbital Workshop passive thermal control surfaces (1974)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: The optical properties of selected Orbital Workshop thermal control surfaces are discussed from the time of their installation through the end of the Skylab missions. The surfaces considered are the goldized Kapton tape on the habitation area sidewall, the S-13G white paint on the Workshop aft skirt, and the multilayer insulation system on the forward dome of the habitation area. A quantitative assessment of the effects of exposure to the ascent and orbital environments is made including the effects of rocket exhaust plume contamination. Although optical property degradation of the external surfaces was noted, satisfactory thermal performance was maintained throughout the Skylab missions.
    Keywords: BIOTECHNOLOGY
    Type: ASME PAPER 74-ENAS-39 , Intersociety Conference on Environmental Systems; Jul 29, 1974 - Aug 01, 1974; Seattle, WA; US
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Space shuttle auxiliary propulsion system design study. Phase C and E report: Storable propellants, RCS/OMS/APU integration study (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Auxiliary propulsion concepts for application to the space shuttle are compared. Both monopropellant and bipropellant earth storable reaction control systems were evaluated. The fundamental concepts evaluated were: (1) monopropellant and bipropellant systems installed integrally within the vehicle, (2) fuel systems installed modularly in nose and wing tip pods, and (3) fuel systems installed modularly in nose and fuselage pods. Numerous design variations within these three concepts were evaluated. The system design analysis and methods for implementing each of the concepts are reported.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-128819 , MDC-E0708 , MSC-04423-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    System distortion errors in radiorespirometry curves. (1971)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: Description of a method for evaluating the maximum error producible in the system distortion of a carrier gas type radiorespirometer. The maximum producible error is evaluated on the basis of a second order. The maximum producible decrease in peak height output is calculated as a function of the system's time constant or flow rate by using the system's transfer function and the Laplace transformation equation (Gardner and Barnes, 1961).
    Keywords: BIOTECHNOLOGY
    Type: International Journal of Applied Radiation and Isotopes; 22; 1971
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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    Development and in-flight performance of the Mariner 9 spacecraft propulsion system (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: On November 14, 1971, Mariner 9 was decelerated into orbit about Mars by a 1334-newton (300-lbf) liquid bipropellant propulsion system. The development and in-flight performance are described and summarized of this pressure-fed, nitrogen tetroxide/monomethyl hydrazine bipropellant system. The design of all Mariner propulsion subsystems has been predicated upon the premise that simplicity of approach, coupled with thorough qualification and margin-limits testing, is the key to cost-effective reliability. The qualification test program and analytical modeling of the Mariner 9 subsystem are discussed. Since the propulsion subsystem is modular in nature, it was completely checked, serviced, and tested independent of the spacecraft. Proper prediction of in-flight performance required the development of three significant modeling tools to predict and account for nitrogen saturation of the propellant during the six-month coast period and to predict and statistically analyze in-flight data. The flight performance of the subsystem was excellent, as were the performance prediction correlations. These correlations are presented.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-129097 , JPL-TM-33-574
    Format: application/pdf
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  • 5
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    Study of casing treatment stall margin improvement phenomena (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The results of a program of experimental and analytical research in casing treatments over axial compressor rotor blade tips are presented. Circumferential groove, axial-skewed slot, and blade angle slot treatments were tested. These yielded, for reduction in stalling flow and loss in peak efficiency, 5.8% and 0 points, 15.3% and 2.0 points, and 15.0% and 1.2 points, respectively. These values are consistent with other experience. The favorable stalling flow situations correlated well with observations of higher-then-normal surface pressures on the rotor blade pressure surfaces in the tip region, and with increased maximum diffusions on the suction surfaces. Annular wall pressure gradients, especially in the 50-75% chord region, are also increased and blade surface pressure loadings are shifted toward the trailing edge for treated configurations. Rotor blade wakes may be somewhat thinner in the presence of good treatments, particularly under operating conditions close to the baseline stall.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-134552 , R73AEG326
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    C14-radiorespirometry system for astronaut medical monitoring. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: A C14-CO2 radiorespirometry-computer system for monitoring human metabolism during space missions is described. Data collection using this apparatus is an effective 'real time' system allowing rapid, low-cost data processing which is ideal for telemetering signals from spacecraft to earth.
    Keywords: BIOTECHNOLOGY
    Type: Aerospace Medical Association, Annual Scientific Meeting; May 08, 1972 - May 11, 1972; Bal Harbour, FL
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    Operating manual for coaxial injection combustion model (1974)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: An operating manual for the coaxial injection combustion model (CICM) is presented as the final report for an eleven month effort designed to provide improvement, to verify, and to document the comprehensive computer program for analyzing the performance of thrust chamber operation with gas/liquid coaxial jet injection. The effort culminated in delivery of an operation FORTRAN IV computer program and associated documentation pertaining to the combustion conditions in the space shuttle main engine. The computer program is structured for compatibility with the standardized Joint Army-Navy-NASA-Air Force (JANNAF) performance evaluation procedure. Use of the CICM in conjunction with the JANNAF procedure allows the analysis of engine systems using coaxial gas/liquid injection.
    Keywords: PROPULSION SYSTEMS
    Type: NASA-CR-129031
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    Mariner 9 propulsion subsystem performance during interplanetary cruise and Mars orbit insertion (1972)
    In:  CASI
    Details
    Publication Date: 2006-02-22
    Description: On 14 November 1971 the Mariner 9 1334-N-(300-lbf)-thrust rocket engine was fired for just over 15 min to place the first man-made satellite into orbit about Mars. Propulsion subsystem data gathered during the 5-month interplanetary cruise and orbit insertion are of significance to future missions of this type. Specific results related to performance predictability, zero g heat transfer, and nitrogen permeation, diffusion, and solubility values are presented.
    Keywords: PROPULSION SYSTEMS
    Type: JPL Quarterly Tech. Rev., Vol. 2, No. 1; p 113-122
    Format: text
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  • 9
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    V/STOL propulsion (1971)
    In:  CASI
    Details
    Publication Date: 2006-04-20
    Description: Propulsion technology for STOL and V/STOL commercial aircraft
    Keywords: PROPULSION SYSTEMS
    Type: AIRCRAFT PROPULSION 1971; P 135-168
    Format: text
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    NASA TECHNICAL REPORTS
  • 10
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    The contingent negative variation and the late positive wave of the average evoked potential (1970)
    In:  Other Sources
    Details
    Publication Date: 2011-08-16
    Description: EEG analysis for poststimulus events, examining contingent negative variation and late positive wave of average evoked potential
    Keywords: BIOTECHNOLOGY
    Type: ; DIOTEKHNIKA (
    Format: text
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