1. Assistant Professor, Dept. of Industrial Engineering and Management, I-Shou Univ., No.1, Section 1, Hsueh-Cheng Rd., Ta-Hsu Hsiang, Kaohsiung County, Taiwan.
2. Assistant Professor, CEPM Program, Dept. of Civil Engineering, Univ. of Texas at Austin, 1 University Station C-1752, Austin, TX 78712.
3. Professor, Dept. of Civil and Coastal Engineering, Univ. of Florida, Gainesville, FL 32611-6580.