35 research outputs found

    The partnership: Space shuttle, space science, and space station

    Get PDF
    An overview of the NASA Space Station Program functions, design, and planned implementation is presented. The discussed functions for the permanently manned space facility include: (1) development of new technologies and related commercial products; (2) observations of the Earth and the universe; (3) provision of service facilities for resupply, maintenance, upgrade and repair of payloads and spacecraft; (4) provision of a transportation node for stationing, processing and dispatching payloads and vehicles; (5) provision of manufacturing and assembly facilities; (6) provision of a storage depot for parts and payloads; and (7) provision of a staging base for future space endeavors. The fundamental concept for the Space Station, as given, is that it be designed, operated, and evolved in response to a broad variety of scientific, technological, and commercial user interests. The Space Shuttle's role as the principal transportation system for the construction and maintenance of the Space Station and the servicing and support of the station crew is also discussed

    Combined Forward-Backward Asymmetry Measurements in Top-Antitop Quark Production at the Tevatron

    Get PDF
    The CDF and D0 experiments at the Fermilab Tevatron have measured the asymmetry between yields of forward- and backward-produced top and antitop quarks based on their rapidity difference and the asymmetry between their decay leptons. These measurements use the full data sets collected in proton-antiproton collisions at a center-of-mass energy of s=1.96\sqrt s =1.96 TeV. We report the results of combinations of the inclusive asymmetries and their differential dependencies on relevant kinematic quantities. The combined inclusive asymmetry is AFBttˉ=0.128±0.025A_{\mathrm{FB}}^{t\bar{t}} = 0.128 \pm 0.025. The combined inclusive and differential asymmetries are consistent with recent standard model predictions

    Calibration report on the University of Michigan supersonic wind tunnel : part I, Wind tunnel facilities and testing techniques : part II, Aerodynamic calibration of nominal Mach number 1.90

    Full text link
    http://deepblue.lib.umich.edu/bitstream/2027.42/4447/5/bab4664.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/4447/4/bab4664.0001.001.tx

    Calibration report on the University of Michigan supersonic wind tunnel : part 1, Wind tunnel facilities and testing techniques : part 2, Aerodynamic calibration at nominal Mach number of 1.90

    Full text link
    http://deepblue.lib.umich.edu/bitstream/2027.42/4446/5/bab4663.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/4446/4/bab4663.0001.001.tx

    Calibration report on the University of Michigan supersonic wind tunnel : part III, aerodynamic calibration at nomial Mach number on 2.84 : part IV, aerodynamic calibration at nominal Mach number of 1.44

    Full text link
    http://deepblue.lib.umich.edu/bitstream/2027.42/4448/5/bab7782.0001.001.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/4448/4/bab7782.0001.001.tx

    GM in Asian Auto Markets

    Get PDF
    We combine searches by the CDF and D0 collaborations for a Higgs boson decaying to W+W-. The data correspond to an integrated total luminosity of 4.8 (CDF) and 5.4 (D0) fb-1 of p-pbar collisions at sqrt{s}=1.96 TeV at the Fermilab Tevatron collider. No excess is observed above background expectation, and resulting limits on Higgs boson production exclude a standard-model Higgs boson in the mass range 162-166 GeV at the 95% C.L
    corecore