52,953 research outputs found

    MOD-0 wind turbine dynamics test correlations

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    The behavior of the teetered, downwind, free yaw, MOD-0 wind turbine, as represented by NASA dynamic test data, was used to support confidence in the Hamilton Standard computer code simulations. Trim position, performance at trim, and teeter response as predicted by the computer codes were compared to test results. Using the computer codes, other possible configurations for MOD-0 were investigated. Several new test configurations are recommended for exploring free yaw behavior. It is shown that eliminating rotor tilt and optimizing cooling and blade twist can contribute to good free yaw behavior and stability. The effects of rotor teeter, teeter gravity balance, inflow and other physical and operating parameters were also investigated

    LEASE CONTRACTING IN SOVIET AGRICULTURE IN 1989

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    Farm Management,

    The Self-Sufficiency Standard for Illinois

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    An introduction to the Self-Sufficiency standard and how it differs from the federal poverty measure

    AGRICULTURE AND FIVE YEARS OF PERESTROIKA

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    International Development,
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