1. Ph.D. Student, Dept. of Civil and Environmental Engineering, Portland State Univ., Portland, OR; Faculty Member, Dept. of Environmental Engineering, Univ. of Babylon, Babylon, Iraq.
2. Professor, Dept. of Civil and Environmental Engineering, Portland State Univ., Portland, OR; Collaborative Center for Geo-hazards and Eco-Environment in Three Gorges Area, Three Gorges Univ., Yichang, China.