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  • 1
    Publication Date: 2006-01-16
    Description: The Skylab zero-g extravehicular activity data is of particular interest when it is considered in combination with the Apollo and Gemini data. The energy cost of extravehicular activity from Gemini through Skylab is discussed.
    Keywords: AEROSPACE MEDICINE
    Type: Biomed. Results from Skylab; p 395-399
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  • 2
    Publication Date: 2006-01-12
    Description: The extravehicular activity life support equipment, suit temperature control, metabolic rate measurement methods, and energy production are discussed. The Apollo crewmen were able to perform planned extravehicular activities and to extend them to the maximum time allowable without medical problems. The metabolic rates experienced during the lunar surface extravehicular activities were lower than conservative premission estimates. A manually controlled liquid cooling garment was effectively used to minimize fatigue and water loss from sweating during lunar surface extravehicular activities. Gas cooling was adequate during the short zero-g extravehicular activities performed from the command module. The prediction of EVA workloads became more reliable as inflight data was accumulated. The prediction of the average metabolic cost of an EVA was more reliable than the cost of an individual short-term task.
    Keywords: AEROSPACE MEDICINE
    Type: Biomedical Results of Apollo; p 115-128
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  • 3
    Publication Date: 2006-01-16
    Description: The physiological effects of forces resulting in radial acceleration, sustained linear acceleration, impact, or vibration are identified. Tolerance limits are presented for these forces.
    Keywords: AEROSPACE MEDICINE
    Type: The Physiol. Basis for Spacecraft Environ. Limits; p 71-107
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  • 4
    Publication Date: 2006-01-12
    Description: The selection of an Apollo spacecraft atmosphere was based on the establishment of an acceptable range of atmospheric composition and pressure, the establishment of acceptable carbon dioxide levels, thermal comfort criteria, and acceleration and impact limits. The prime design requirements in a spacecraft system are minimum weight, volume, power usage, reliability, ease of maintenance, environmental compatibility, integration with other systems, and crew compatibility. The selection considerations are reviewed.
    Keywords: AEROSPACE MEDICINE
    Type: Biomedical Results of Apollo; p 129-139
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  • 5
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    In:  CASI
    Publication Date: 2006-01-16
    Description: The physiological effects, discomfort, and performance degradation associated with an imbalanced thermal environment are discussed. Temperature tolerance limits are set using thermoregulation models and experimental results. The effects of interacting environmental factors, individual variations, and exposure duration on tolerance limits are considered.
    Keywords: AEROSPACE MEDICINE
    Type: The Physiol. Basis for Spacecraft Environ. Limits; p 57-69
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  • 6
    Publication Date: 2019-06-27
    Description: Limits for operational environments are discussed in terms of acceptable physiological changes. The environmental factors considered are pressure, contaminants, temperature, acceleration, noise, rf radiation, and weightlessness.
    Keywords: AEROSPACE MEDICINE
    Type: NASA-RP-1045 , S-487
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  • 7
    Publication Date: 2019-06-27
    Description: A model of thermoregulation in man was used operationally during the Apollo and Skylab programs. The evolution of this description of thermoregulation is discussed as well as the supporting research programs that led to its growth in representational detail and operational accuracy. A discussion of the operational use of the model is presented as well as future applications of the model.
    Keywords: RESEARCH AND SUPPORT FACILITIES (AIR)
    Type: PAPER-61 , 8th Conf. on Space Simulation; p 749-757
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  • 8
    Publication Date: 2019-07-13
    Description: The environments provided by the Orbiter vehicle and by the Spacelab will differ substantially from the environment provided by prior spacecraft. The specific design limits for each environmental parameter and expected operating characteristics are presented for both the Orbiter and the Spacelab. The environments are compared with those of earlier spacecraft and with the normal earth laboratory. Differences between the spacecraft environments and the normal laboratory environment and the impact of these differences on experiments and equipment design are discussed.
    Keywords: MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
    Type: ASME PAPER 76-ENAS-24 , Intersociety Conference on Environmental Systems; Jul 12, 1976 - Jul 15, 1976; San Diego, CA
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  • 9
    Publication Date: 2019-06-27
    Description: A significant effort was made to assess the metabolic expenditure for extravehicular activity on the lunar surface. After evaluation of the real-time data available to the flight controller during extravehicular activity, three independent methods of metabolic assessment were chosen based on the relationship between heart rate and metabolic production, between oxygen consumption and metabolic production, and between the thermodynamics of the liquid-cooled garment and metabolic production. The metabolic assessment procedure is analyzed and discussed. Real-time use of this information by the Apollo flight surgeon is discussed. Results and analyses of the Apollo missions and comments concerning future applications are included.
    Keywords: ASTRONAUTICS (GENERAL)
    Type: NASA-TN-D-7883 , JSC-S-394
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