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Miyaki Ohta
Grad. School of Engineering Science, Akita Univ.
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Hirokazu Okawa
Grad. School of Engineering Science, Akita Univ.
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Takahiro Kato
Grad. School of Engineering Science, Akita Univ.
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Katsuyasu Sugawara
Grad. School of Engineering Science, Akita Univ.