1. Graduate Research Assistant, Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, USA
2. Postdoctoral Fellow, Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, USA
3. Assistant Professor, Irrigation Engineering and Hydraulics Department, Alexandria University, Alexandria, Egypt
4. (IAHR Member), Mr. and Mrs. Irwin B. Kahn Professor and Associate Dean, International Programs and Continuing Education, College of Engineering and Computing, University of South Carolina, Columbia, SC, USA
5. Professor, Department of Civil and Environmental Engineering, University of South Carolina, Columbia, SC, USA