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M.Okamoto
Graduate School of Science and Engineering, Yamaguchi Univ.
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T. Kobayashi
Media and Information Technology Center, Yamaguchi Univ.
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K. Akai
Media and Information Technology Center, Yamaguchi Univ.
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Y. Hisanaga
Media and Information Technology Center, Yamaguchi Univ.
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K. Ogawara
Graduate School of Science and Engineering, Yamaguchi Univ.