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Browsing by Author "Chen, R"

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    A model of non-homogeneous damped electromagnetic wave and heat equation in ferrite materials
    (2002-02-01)
    Tung, MJ
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    Chen, R
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    Hsu, CH
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    Tseng, TY
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    電子工程學系及電子研究所
    This study uses a closely coupled model to treat the core loss of ferrite by the combination of non-homogeneous damped electromagnetic wave and heat equation. The heat dissipation of ferrites is caused by the core loss, which is a summation of magnetic, dielectric and eddy current losses. Explicit finite difference method solves the coupled equations to calculate core loss and compares it with the measured results. Those results show that this method can be used to analyze electromagnetic and thermal field with temperature dependence of ferrites. (C) 2002 Elsevier Science B.V. All rights reserved.
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    Synthesis of cable-like copper nanowires
    (2003-02-05)
    Yen, MY
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    Chiu, CW
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    Hsia, CH
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    Chen, R
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    Kai, JJ
    Cable-like copper nanowires (1-10 mum in length and 15-80 nm in diameter) with an insulating poly(dimethylsiloxane) (PDMS) sheath (510 nm in thickness, see Figure) have been successfully synthesized by a solvent-free reaction between CuCl and (Me3Si)(4)Si in the presence of PDMS in sealed tubes. The wire formation mechanism is proposed to be vapor-solid reaction growth.