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  • 1
    Publication Date: 2005-11-27
    Description: Proposed dual column gas chromatographic mass spectrometer for analyzing Jupiter atmosphere
    Keywords: SPACE SCIENCES
    Type: SPACE PROGRAMS SUM. NO. 37-61, VOL. 3 28 FEB. 1970; P 5-7
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  • 2
    Publication Date: 2005-11-30
    Description: The performance of the microbial response to space environment experiment is considered excellent by all investigators. For most microbial systems, only preliminary survival data are available at this time. None of the available data indicate space flight-mediated changes in cell viability or recovery. One quite important observation has been made at this early date, however. The eggs produced after mice had been infected with N. dubius larvae demonstrated a significant decrease in hatchability when compared to identical ground controls. Except for the fact that the Apollo 16 flight larvae had been on board the command module, treatment of the flown larvae and ground control larvae was the same; neither had been exposed to UV irradiation. The significance and implications of this finding are currently being studied.
    Keywords: BIOSCIENCES
    Type: Apollo 16 Prelim. Sci. Rept.; 6 p
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  • 3
    Publication Date: 2005-03-28
    Description: In many structures the final stress states are dependent on the sequence of construction or the stress states at various stages of construction are of interest. Such problems can be analyzed using finite element programs that have the capability of adding (birthing) elements to simulate the progress of construction. However, the usual procedure of assembling elements may lead to numerical instabilities or stress states that are unrealistic. Both problems are demonstrated in the analysis of a structure using the program ADINA. A technique which combines application of a preload with element birthing to overcome these problems is described and illustrated.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA. Langley Research Center Res. in Struct. and Dyn., 1984; p 395-404
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  • 4
    Publication Date: 2006-10-26
    Description: Weingartens characteristic function as a membrane stress function
    Keywords: STRUCTURAL MECHANICS
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  • 5
    Publication Date: 2006-04-26
    Description: Cultures of B. thuringiensis returned from space flight appeared to be normal to slightly affected adversely in their ability to produce three toxins that affect insects. In addition, it can be stated that B. thuringiensis spores are very resistant to ultraviolet irradiation at the individual wavelengths and energy levels previously described. Full sunlight, however, does have a detrimental effect on the viability of B. thuringiensis spores.
    Keywords: BIOSCIENCES
    Type: Proc. of the Microbial Response to Space Environ. Symp.; p 105-120
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  • 6
    Publication Date: 2006-01-12
    Description: Results are presented of the Biocore experiment which attempted to assess the degree to which exposure to cosmic ray particle radiation might present a risk to astronauts. Pocket mice, with plastic dosimeters implanted beneath the scalp were flown in a sealed canister. The objective was to determine whether microscopically visible lesions attributable to particle radiation, could be found in brain, eye, and other tissues in these animals. The need for further study is demonstrated.
    Keywords: AEROSPACE MEDICINE
    Type: Biomedical Results of Apollo; p 381-403
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  • 7
    Publication Date: 2006-01-12
    Description: Quarantine testing was conducted to ensure the safety of all life on earth. The plants and animals which were exposed to lunar material were carefully observed for prolonged periods to determine if any mutation or changes in growing characteristics and behavior occurred. The quarantine testing was terminated after the Apollo 14 flight when it became apparent that previously returned lunar material contained no potentially harmful agents. Further biological experimentation with the lunar material was conducted to determine its chemical, physical, and nutritional qualities.
    Keywords: AEROSPACE MEDICINE
    Type: Biomedical Results of Apollo; p 425-434
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  • 8
    Publication Date: 2006-01-16
    Description: The validity of biomedical research using animal subjects is highly dependent on the use of 'normal' and healthy animals. The current costs of research programs dictate that a minimum number of animals and test replicates be used to obtain the desired data. The use of healthy and standardized animals increases the probability of obtaining valid data while also permitting greater economy by reducing the between-individual variation, thus allowing the use of fewer animals. Areas of concern when planning animal payloads include constraints of the flight on candidate species selection, screening for physiological and psychological normalcy, procedures for routine care and quarantine of new animals and those returning from space, ground-based studies to determine experimental protocol, selection of instrumentation, stress during transportation for flight operations, housing and care facilities at launch and recovery sites, and the overall veterinary program.
    Keywords: LIFE SCIENCES (GENERAL)
    Type: The Use of Nonhuman Primates in Space; p 197-201
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  • 9
    Publication Date: 2006-10-26
    Description: Transverse vibrations of a flat spinning membrane
    Keywords: STRUCTURAL MECHANICS
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  • 10
    Publication Date: 2011-08-19
    Description: CFCl3 and CF2Cl2 data for the 5-year period from July 1978-June 1983 are analyzed. The lifetime estimates are updated using the trend technique and the annual global release rates of the gases are derived. The effects of release uncertainties on lifetime estimates are examined by studying fluorocarbon data. It is observed that in 1981 the mixing ratios for CFCl3 and CF2Cl2 displayed increases of 8.8. and 15.3 pptv/year respectively, and the trend lifetime for CFCl13 is 74 + 31 or - 17 years and for CF2Cl2 111 + 222 or - 44 years.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 91; 10797-10
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