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Tetsuro YAMAMOTO
Faculty of Engineering, Yamaguchi University
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Takashi TERAYAMA
Graduate School of Science and Engineering, Yamaguchi University
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Yasuaki KATSUBE
Graduate School of Science and Engineering, Yamaguchi University
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Motoyuki SUZUKI
Faculty of Engineering, Yamaguchi University
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Atsuo SHIRAISHI
Yamaguchi Work Office, Ministry of Land, Infrastructure and Transport