4,314 research outputs found

    Automatic sample rotator for metallographic polishing

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    Simple, inexpensive device can be attached to most metallographic sample polishing tables. It provides a suitable surface finish for microscopic examination or photography of surface details of the samples

    Nimbus Telemetry

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    Nimbus satellite - pulse-code-modulated telemetry subsyte

    Deep Space Network utilization for flight projects, calendar year 1981

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    A report on the utilization of the Deep Space Network during calendar year 1981 in support of all flight projects is presented. The network expended 63% of its total capability in support of Space Flight projects

    Normal Mode Spectrum of the Deuteron in the Skyrme Model

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    The normal mode spectrum of the deuteron in the Skyrme model is computed. We find a bound doublet mode below the pion mass, which can be related to the well-known 90āˆ˜90^{\circ} scattering of two skyrmions. We also find a singlet `breather' mode and another doublet above the pion mass. The qualitative pattern of the spectrum is similar to that recently found for the B=4 multiskyrmion. The symmetries of all the vibrational modes are presented.Comment: LaTeX, 10 pages, 3 figure

    Test of the Skyrme Effective Field Theory Using Quenched Lattice QCD

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    The Skyrme effective field theory is tested by evaluating nucleon ground state matrix elements of the correlation functions for two flavor density operators and two pseudoscalar density operators in the Skyrme model and comparing them with results in quenched lattice QCD. The possiblility of using quenched lattice QCD to study higher-order terms in effective field theory is also discussed.Comment: 20 pages in TeX, 6 figures added using "figures", MIT-CTP-200

    Unraveling the Veil: The Concepts of Limited Liability and Disregard of the Corporate Entity

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    An overview of limited liability and the doctrine of piercing the corporate veil. I focus on the factors courts consider in determining whether to disregard the corporate entity

    The Internet: A Critical Technology for the State of Environmental Law

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