1. Dept. of Civil and Environmental Engineering, Univ. of South Carolina, Columbia, SC; Dept. of Irrigation Engineering and Hydraulics, Alexandria Univ., Alexandria, Egypt.
2. Dept. of Civil and Environmental Engineering, Univ. of South Carolina, Columbia, SC; Dept. of Irrigation and Hydraulics Engineering, Ain Shams Univ., Cairo, Egypt.
3. Dept. of Civil and Environmental Engineering, Univ. of South Carolina, Columbia, SC.