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  • Other Sources  (6)
  • Man/System Technology and Life Support  (4)
  • Spacecraft Design, Testing and Performance  (2)
  • Solar Physics
  • 2005-2009  (6)
  • 2006  (6)
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  • Other Sources  (6)
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  • 2005-2009  (6)
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  • 1
    Publication Date: 2019-07-13
    Description: No abstract available
    Keywords: Spacecraft Design, Testing and Performance
    Type: KSC-2006-114 , C3P/NASA International Workshop; Jul 31, 2006 - Aug 04, 2006; Portland, OR; United States
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  • 2
    Publication Date: 2019-07-12
    Description: Charging System Analyzer Program (Nascap-2K) is a comprehensive update, revision, and extension of several NASA and Air Force codes for predicting electrical charging of spacecraft. Nascap-2K integrates the capabilities and models included in four independent programs: NASCAP/LEO for low-Earth orbits, NASCAP/GEO for geosynchronous orbits, POLAR for auroral charging in polar orbits, and DynaPAC (Dynamic Plasma Analysis Code) for time-dependent plasma interactions. While each of the earlier codes works well for the range of problems for which it was designed, by today s standards these codes are difficult to learn, cumbersome to use, and overly restrictive in their geometric modeling capabilities. Nascap-2K incorporates these models into a single software package that includes spacecraft surface modeling, spatial gridding, environmental specifications, calculating scripting, and post-processing analysis and visualization. The provided material properties database includes values from earlier programs as well as values from recent measurements. Development of Nascap-2K continues with future capabilities to include interactions with dense plasma such as those produced by electric propulsion.
    Keywords: Man/System Technology and Life Support
    Type: MFS-31939-1/2056-1 , NASA Tech Briefs, November 2006; 17
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  • 3
    Publication Date: 2019-07-13
    Description: As humans venture farther from Earth for longer durations, it will become essential for those on the journey to have significant control over the scheduling of their own activities as well as the activities of their companion systems and robots. However, the crew will not do all the scheduling; timelines will be the result of collaboration with ground personnel. Emerging technologies such as in-space message buses, delay-tolerant networks, and in-space internet will be the carriers on which the collaboration rides. Advances in scheduling technology, in the areas of task modeling, scheduling engines, and user interfaces will allow the crew to become virtual scheduling experts. New concepts of operations for producing the timeline will allow the crew and the ground support to collaborate while providing safeguards to ensure that the mission will be effectively accomplished without endangering the systems or personnel.
    Keywords: Man/System Technology and Life Support
    Type: 5th International Workshop on Planning and Scheduling for Space (IWPSS); Oct 22, 2006 - Oct 25, 2006; Baltimore, MD; United States
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  • 4
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    In:  CASI
    Publication Date: 2019-07-12
    Description: This presentation in outline format for delivery to school age groups (i.e., K-12) reviews the importance of proper nutrition and exercise for everyone, with emphasis on space travel. It reviews the types of space food, the constraints of eating in space, and some of the challenges of exercising in space. It lists the materials displayed and used as teaching resources, as well as materials to be distributed.
    Keywords: Man/System Technology and Life Support
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  • 5
    Publication Date: 2019-07-12
    Description: A method of studying the functions of all the genes of a given species of microorganism simultaneously has been developed in experiments on Saccharomyces cerevisiae (commonly known as baker's or brewer's yeast). It is already known that many yeast genes perform functions similar to those of corresponding human genes; therefore, by facilitating understanding of yeast genes, the method may ultimately also contribute to the knowledge needed to treat some diseases in humans. Because of the complexity of the method and the highly specialized nature of the underlying knowledge, it is possible to give only a brief and sketchy summary here. The method involves the use of unique synthetic deoxyribonucleic acid (DNA) sequences that are denoted as DNA bar codes because of their utility as molecular labels. The method also involves the disruption of gene functions through deletion of genes. Saccharomyces cerevisiae is a particularly powerful experimental system in that multiple deletion strains easily can be pooled for parallel growth assays. Individual deletion strains recently have been created for 5,918 open reading frames, representing nearly all of the estimated 6,000 genetic loci of Saccharomyces cerevisiae. Tagging of each deletion strain with one or two unique 20-nucleotide sequences enables identification of genes affected by specific growth conditions, without prior knowledge of gene functions. Hybridization of bar-code DNA to oligonucleotide arrays can be used to measure the growth rate of each strain over several cell-division generations. The growth rate thus measured serves as an index of the fitness of the strain.
    Keywords: Man/System Technology and Life Support
    Type: ARC-15345-1 , NASA Tech Briefs, February 2006; 23
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  • 6
    Publication Date: 2019-07-19
    Description: In response to the Vision for Space Exploration, the National Aeronautics and Space Administration (NASA) has defined a new space exploration architecture to return humans to the Moon and to prepare for human exploration of Mars. One of the first new developments will be the Crew Launch Vehicle (CLV) , which will carry the Crew Exploration Vehicle (CEV) into Low Earth Orbit (LEO) to support International Space Station (ISS) missions and, later, to support lunar missions. As part of the CLV development, NASA will perform a series of CLV flight tests. The tests will provide data that will inform the engineering and design process and verify the flight hardware and software. In addition, the data gained from the flight tests will be used to certify the new CLV/CEV vehicle for human space flight. This paper will provide an overview of the CLV flight test process and details of the individual flight tests
    Keywords: Spacecraft Design, Testing and Performance
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