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Yoshihiro YOSHIMURA
Dept. mech. Engineering Nagaoka Univ. of Technology
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JinQuan XU
Dept. mech. Engineering Nagaoka Univ. of Technology
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W. M. Tao
Dept. mech. Engineering Nagaoka Univ. of Technology
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Yukio MIYASHITA
Dept. mech. Engineering Nagaoka Univ. of Technology
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Yoshiharu MUTOH
Dept. mech. Engineering Nagaoka Univ. of Technology