2,454 research outputs found

    Heat Transfer Characteristics of Regenerator Matrix (Case of Packed Wire Gauzes)

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    The average heat transfer coefficient in the matrix of laminated wire screens (10 to 250 mesh) for a Stirling engine heat exchanger was studied experimentally. The data are correlated by N sub ud = 0.42 R sub ed 0.56 (3 or = R sub ed or = 400), and R sub ed are the Nusselt and Reynolds nubmers based on the wire diameter. The pressure drop decreased and the heat transfer increased as the wire diameter was decreased

    Determining the Mass for a Light Gravitino

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    Gauge mediated supersymmetry breaking scenarios with an ultra-light gravitino of mass m_{3/2}=1-10 eV are very interesting, since there is no cosmological gravitino problem. We propose a new experimental determination of the gravitino mass for such an ultra-light gravitino, by measuring a branching ratio of two decay modes of sleptons.Comment: 9 pages, 12 figure

    Monte Carlo simulations of the screening potential of the Yukawa one-component plasma

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    A Monte Carlo scheme to sample the screening potential H(r) of Yukawa plasmas notably at short distances is presented. This scheme is based on an importance sampling technique. Comparisons with former results for the Coulombic one-component plasma are given. Our Monte Carlo simulations yield an accurate estimate of H(r) as well for short range and long range interparticle distances.Comment: to be published in Journal of Physics A: Mathematical and Genera

    Effects of sheared flows on ion-temperature-gradient-driven turbulent transport

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    S. Hamaguchi and W. Horton, Physics of Fluids B: Plasma Physics 4, 319 (1992) https://doi.org/10.1063/1.86028
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