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Shigetaka TAKIGUCHI
Ootagawa river office, Ministry of Land, Infrostructure and Transport Chugoku Regional Development Bureau
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Taro UCHIDA
Public Works Research Institute, Erosion & Sediment Control Research Group
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Nobuyuki MORI
Public Works Research Institute, Erosion & Sediment Control Research Group
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Keiji TAMURA
Public Works Research Institute, Erosion & Sediment Control Research Group