5,101 research outputs found

    Variations on the Supersymmetric Q6 Model of Flavor

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    We observe that a recently proposed supersymmetric model with Q6 flavor symmetry admits a new CP violating ground state. A new sum rule for the quark mixing parameters emerges, which is found to be consistent with data. Simple extensions of the model to the neutrino sector suggest an inverted hierarchical mass spectrum with nearly maximal CP violation (|delta_{MNS}| simeq pi/2). Besides reducing the number of parameters in the fermion sector, these models also provide solutions to the SUSY flavor problem and the SUSY CP problem. We construct a renormalizable scalar potential that leads to the spontaneous breaking of CP symmetry and the family symmetry.Comment: 22 pages, 7 figure

    New technique for producing a strong multi-pole magnet

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    A new technique for producing strong multipole magnet is developed. A cylindrical magnet oriented with its easy axis of magnetization perpendicular to the cylinder axis is magnetized by a multipole magnetizer. This procedure results in a multipole magnet with a flux density almost sixty percent greater than the flux density produced by a multi-pole magnet which is not oriented. The technique is especially effective for producing small cylindrical magnets with many poles and agreement of a theoretical analysis with experimental results is very good, with deviations of no more than a few percent.</p

    Statistical mechanics and large-scale velocity fluctuations of turbulence

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    Turbulence exhibits significant velocity fluctuations even if the scale is much larger than the scale of the energy supply. Since any spatial correlation is negligible, these large-scale fluctuations have many degrees of freedom and are thereby analogous to thermal fluctuations studied in the statistical mechanics. By using this analogy, we describe the large-scale fluctuations of turbulence in a formalism that has the same mathematical structure as used for canonical ensembles in the statistical mechanics. The formalism yields a universal law for the energy distribution of the fluctuations, which is confirmed with experiments of a variety of turbulent flows. Thus, through the large-scale fluctuations, turbulence is related to the statistical mechanics.Comment: 7 pages, accepted by Physics of Fluids (see http://pof.aip.org/

    ANALYSIS OF THE GOLF SLOPE SHOT BY GROUND REACTION

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    The purpose of this study was to develop a method for improving performance by weight transfer of slope shots. It is necessary to comprehend the mechanism in order to achieve effective movement of the slope shot. Slope shots have been used by many golfers, who trained those pattern of the golf swing.Weight transfer could be appeared with subjective observation alone in slope shots. It was became obvious that there was a difference among four golfers in the swing movement by compared the weight transfer of the slope shots. METHODS Subjects were a professional golfer (E N) and three amateur skilled golfers Upper-class (M N) middle-class (R E) and beginner-class (H H). All subjects were right handed male golfers and used the seven iron club. Subject stood on top of the plate facing uphill, downhill, uphill and sloping left, and downhill and sloping left. The degree of lie was set twenty degrees.The experiment carried out as follows that was attached to the measurement of body turbulence in (3 seconds) for during a slope shot action. Inputting with sampling frequency 200 Hz, 5 ms with A D converter device furthermore through, strain amplitude, filter from force plate a special program of computer was used that. These slope shots with 60 fps speed, from a front (about 10 M) of a subject by using VTR camera. RESULT AND DISCUSSION As for the ground reaction force on an uphill lie, professional golfer (E N) had much more path way of target foot than that of players of upper-class (M N) middle-class R.E. and beginner-class H.H. The resultant of body weight transfer in the downhill lie were compared among four golfers. Professional golfer (E N) showed loci of weight transfer among the target foot and the center of stance. The center of vertical force by the downhill lie were appeared at the orbit on target foot sole pressure of four subjects. The orbits of transfer foot were found to be two types patterns, orbit transferred at small circle with middle-class player, while the straight line were drew by beginner, and a square area were observed by professional golfer and upper-class player. REFERENCES James Rechords, Matin Farrell, James Kent and Robert Kraft (1985). Weight transfer patterns during the golf swing. Res Quart, 56, 361-365. Kazuaki Kawashima (1987). The biomchanics of golf swing: by weight transfer loci. Japan Journal of golf sciences, Vol. 1, No. 1, 34-40. Kazuaki Kawashima (1988).Changes on movement pattern of practices in golf swing. Proceeding of Japanese Journal of biomechanics, Vol. 9, 52-56

    Optimal design of injection mold for plastic bonded magnet

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    The optimal design of an injection mold for producing a stronger multipole magnet is carried out using the finite element method and the direct search method. It is shown that the maximum flux density in the cavity obtained by the optimal design is about 2.6 times higher than that of the initial shape determined empirically. 3-D analysis of the nonlinear magnetic field in the injection mold with complicated structure is also carried out. The calculated flux distribution on the cavity surface is in good agreement with the measured one</p
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