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Koji YAMAKAWA
College of Engineering, University of Osaka Prefecture
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Harushige TSUBAKINO
College of Engineering, University of Osaka Prefecture, Now Himeji Institute of Technology
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Hideyuki MITSUMATA
Graduate School, University of Osaka Prefecture, Now Kawasaki Heavy Industries, Ltd.
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Kwang Bae KIM
Graduate School, University of Osaka Prefecture, Now Technology Kerea University