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Masatoshi DENDA
Water Enviroment Research Group, Independent Administrative Institution Public Works Research Institute
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Yukihiro SHIMATANI
Takeo River work office
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Takashi OZAWA
Water Environment Research Group, Independent Administrative Institution Public Works Research Institute
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Toshitaka IWAMOTO
Faculty of Education and Culture, Miyazaki University
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Jyuzou KUKITA
Access System Division, NTT Advance Technology Corporation