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  • BIOTECHNOLOGY  (70)
  • 2020-2022
  • 1980-1984
  • 1970-1974  (70)
  • 1955-1959
  • 1940-1944
  • 1972  (70)
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Years
  • 2020-2022
  • 1980-1984
  • 1970-1974  (70)
  • 1955-1959
  • 1940-1944
Year
  • 1
    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
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  • 2
    Publication Date: 2019-06-27
    Description: Measurements and interpretations of single and mutiloop pilot response properties during simulated instrument approach are presented. Pilot subjects flew Category 2-like ILS approaches in a fixed base DC-8 simulaton. A conventional instrument panel and controls were used, with simulated vertical gust and glide slope beam bend forcing functions. Reduced and interpreted pilot describing functions and remmant are given for pitch attitude, flight director, and multiloop (longitudinal) control tasks. The response data are correlated with simultaneously recorded eye scanning statistics, previously reported in NASA CR-1535. The resulting combined response and scanning data and their interpretations provide a basis for validating and extending the theory of manual control displays.
    Keywords: BIOTECHNOLOGY
    Type: NASA-CR-2019
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  • 3
    Publication Date: 2019-06-27
    Description: Results are reported for work performed during the first phase of the conceptual design study for a teleoperator visual system. This phase consists of four tasks: General requirements, concept development, subsystem requirements and analysis, and concept evaluation.
    Keywords: BIOTECHNOLOGY
    Type: NASA-CR-124059 , MCR-72-276
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  • 4
    Publication Date: 2019-08-14
    Description: A postflight analysis of the Apollo 14 cryogenic oxygen system is presented. The subjects discussed are: (1) methods of analysis, (2) stratification and heat transfer, (3) flight analysis, (4) postflight analysis, and (5) determination of model parameters.
    Keywords: BIOTECHNOLOGY
    Type: NASA-TM-X-68616 , D2-118405-1-SUPPL-2 , MSC-04112-SUPPL-2
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  • 5
    Publication Date: 2019-07-13
    Description: This paper describes a complete electroencephalographic acquisition and transmission system, designed to meet the needs of a large hospital with multiple critical care patient monitoring units. The system provides rapid and prolonged access to a centralized recording and computing area from remote locations within the hospital complex, and from locations in other hospitals and other cities. The system includes quick-on electrode caps, amplifier units and cable transmission for access from within the hospital, and EEG digitization and telephone transmission for access from other hospitals or cities.
    Keywords: BIOTECHNOLOGY
    Type: Computers in biomedicine; Fifth Hawaii International Conference on System Sciences, University of Hawaii; Jan 11, 1972 - Jan 13, 1972; Honolulu, HI
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  • 6
    Publication Date: 2006-04-26
    Description: The development of a mathematical model for human reaction to variables involved in transportation systems is discussed. The techniques, activities, and results related to defining certain specific inputs to the model are presented. A general schematic diagram of the problem solution is developed. The application of the model to short haul air carrier operations is examined.
    Keywords: BIOTECHNOLOGY
    Type: NASA. Langley Res. Center Symp. on Vehicle Ride Quality; p 211-228
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  • 7
    Publication Date: 2011-08-16
    Description: Thirty-six airline pilots and 56 nonpilots were tested to determine their sensitivity to rotation. A staircase procedure was used to determine oculogyral illusion and perception of rotation thresholds, in a precision rotation device. The results indicated that (1) there were no significant differences between the two groups for either threshold measure, (2) the thresholds for the oculogyral illusion were significantly lower than the perception of rotation thresholds for both groups, and (3) changes in threshold as a function of age were minimal for 91 of the men. The validity and results of the tests are discussed with regard to the pilot's use of motion information in control tasks for aircraft and simulators.
    Keywords: BIOTECHNOLOGY
    Type: Aerospace Medicine; 43; Jan. 197
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  • 8
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    In:  Other Sources
    Publication Date: 2011-08-16
    Description: Factors aiding man to adjust to the artificial gravity environment of a rotating space station in orbit are considered. From recent experiments reported by Newsom et al. (1966), it is known that, if man is taken stepwise into a rotating environment, he can adjust (without becoming ill) to spin rates above that required for maintaining an artificial gravity environment in a space station. Little or no data are available, and much work remains to be done in the area of prehabituation and the rate at which habituation is extinguished. At least three factors must be considered in the design of an artificial gravity space station, and these factors directly affect the degree of habitability of the space-station environment. The three factors are rotation rate, stability, and Coriolis force.
    Keywords: BIOTECHNOLOGY
    Type: Space Life Sciences; 3; June 197
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  • 9
    Publication Date: 2011-08-16
    Description: Saturethane solid propellant was used in all tests. The spore inoculum was evenly distributed in the propellant. Samples weighing approximately 5 g were aseptically removed, placed into curing ovens, and exposed to cure temperatures. Initial tests were conducted at 82 and 93 C. Analysis of the obtained data indicated that the survivor curves were not linear. Exposure of the inoculated propellant samples to 93 C reduced the initial population to less than 0.01% in about 20 hours. At 82 C, approximately 168 hours were required for a similar reduction. Tests involving curing temperatures of 105 and 115 C were also conducted. It is pointed out that changes in the mechanism of spore inactivation due to chemical and physical changes in the propellant could account for the nonlinear survivor curves obtained.
    Keywords: BIOTECHNOLOGY
    Type: Space Life Sciences; 3; June 197
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  • 10
    Publication Date: 2011-08-16
    Keywords: BIOTECHNOLOGY
    Type: Simulation; 18; June 197
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