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Koji IRIE
Graduate School, Utsunomiya Univ.
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Miki KOBAYASHI
Fac. of Eng., Utsunomiya Univ.
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Ikuko NAKAZAWA
Fac. of Eng., Utsunomiya Univ.
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Sachio YOSHIHARA
Fac. of Eng., Utsunomiya Univ.
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Tetsuo SAITO
Ind. Res. Inst. Tochigi Pref.
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Eiichi SATO
Fac. of Eng., Utsunomiya Univ.