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  • Parametric manifolds

    Creator:
    Boersma, Stuart F.
    Abstract:
    A standard tool in general relativity is the 3+1 or ADM point of view, namely slicing spacetime into spacelike hypersurfaces of constant time and then describing physics in terms of time-dependent quantities on a typical such hypersurface. Much less well-known is the 1+3 point of view, in which one foliates...
    Resource Type:
    Dissertation

  • A new look at the Ashtekar-Magnon energy condition

    Creator:
    Fischer, James P.
    Abstract:
    Quantum field theory has enjoyed much success, indeed for ordinary flat spacetime applications it has been experimentally verified to a great deal of accuracy. However on general cursed spacetime backgrounds there is no canonical method for constructing a quantum field theory. In 1975, Abhay Ashtekar and Anne Magnon made progress...
    Resource Type:
    Dissertation

  • Automatic time correction for interconnected power system operation

    Creator:
    Thurein, Ingo Paul
    Abstract:
    The North American interconnected power systems continuously attempt to hold power system time as close to standard time as possible. All inherent problems associated with normal power system operation make this a difficult task. System time is presently allowed to deviate from standard time by up to two seconds before...
    Resource Type:
    Masters Thesis
    Full Text:
    . Present correction methods are manual, time consuming and add to existing operating problems which leads

  • Preliminary design and analysis of a rotating bubble membrane radiator for space-based nuclear power systems

    Creator:
    Webb, Brent Jonathan
    Abstract:
    The development of a novel high temperature space radiator is described. A Rotating Bubble Membrane Radiator (RBMR) combines the best features of heat pipes and droplet radiators while avoiding their negative attributes. The RBMR offers light weight, self deployment, ease of startup and its performance is less affected by acceleration....
    Resource Type:
    Masters Thesis
    Full Text:
    : PRELIMINARY DESIGN AND ANALYSIS OF A ROTATING BUBBLE MEMBRANE RADIATOR FOR SPACE-BASED NUCLEAR POWER SYSTEMS

  • Spatial visualization abilities of Central Washington State College prospective elementary and secondary teachers of mathematics

    Creator:
    Martin, Bernard Loyal
    Abstract:
    This investigation was designed to determine the extent to which students who are completing planned curricula in mathematics education are proficient in spatial visualization abilities and possess mathematical understandings. The effects of mathematics curricula upon the development of these abilities and understandings and the relationships between these abilities and understandings...
    Resource Type:
    Dissertation
    Full Text:
    gave of their time and talent: To Dr. Fred W. Fox for his inspiration, guidance, and construc- tive

  • Ultralight fabric reflux tube thermal vacuum testing

    Creator:
    Pauley, Keith Alan
    Abstract:
    Five Ultra light Fabric Reflux Tubes (UFRTs) were tested in a thermal vacuum chamber at the National Aeronautics and Space Administration's Johnson Space Center in September 1994. These test articles were design and fabricated by staff at the Pacific Northwest Laboratory, operated by Battelle Memorial Institute for the United States...
    Resource Type:
    Masters Thesis
    Full Text:
    National Aeronautics and Space Administration's Johnson Space Center in September 1994. These test

  • Design of a Self-Regulating Deep Space Nuclear Reactor

    Creator:
    Robinson, Matthew Loren
    Abstract:
    An enabling technology for long duration, deep space missions is the availability of a high power, long-lived power supply. The goal of this work is the design of a self-regulating deep space nuclear reactor. The design objectives are to produce 250 kWth for a 25-year period using the presence of...
    Resource Type:
    Dissertation
    Full Text:
    -Regulating Two- Phase Fuel Space Nuclear Reactor”, presents the methodology and results that lead to an

  • An analysis of the time spent by home management house students

    Creator:
    Horning, Pearl
    Resource Type:
    Masters Thesis
    Full Text:
    devoted to each house duty, and how the three home management houses compared as to amount of time

  • Nuclear design analysis of low-power (1-30 KWe) space nuclear reactor systems

    Creator:
    Gedeon, Stephen R.
    Abstract:
    Preliminary nuclear design studies have been completed on ten configurations of nuclear reactors for low power (1-30 kWe) space applications utilizing thermionic energy conversion. Additional design studies have been conducted on the TRICE multimegawatt in-core thermionic reactor configuration. In each of the cases, a reactor configuration has been determined which...
    Resource Type:
    Masters Thesis
    Full Text:
    Research Center, National Aeronautics and Space Administration. Finally, I would like to acknowledge the

  • Modeling phosphor space charge in alternating-current thin-film electroluminescent devices

    Creator:
    Keir, Paul D.
    Abstract:
    The accomplishments presented in this thesis are the development of three models for simulation of space charge generation in the phosphor layer of alternating current thin-film electroluminescent (ACTFEL) devices and the results from simulation of these models. First, a single sheet charge model is developed and simulated. The single sheet...
    Resource Type:
    Masters Thesis
    Full Text:
    model and all subsequent models, space charge creation is assumed to occur by field emission from bulk