6:15 PM - 7:30 PM
Kuang-tsung CHANG1, *Chun-te LIN1, Miau-bin SU2, Min-chieh CHENG1 (1.Department of Soil and Water Conservation, National Chung Hsing University, Taichung 402, Taiwan., 2.Department of Civil Engineering , National Chung Hsing University, Taichung 402, Taiwan)