1. Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Canada; Assistant Lecturer, Dept. of Civil Engineering, Aswan Univ., Egypt.
2. Postdoc Fellow, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Canada.
3. Teaching Assistant, Dept. of Civil Engineering, Aswan Univ., Egypt.
4. Professor, Dept. of Civil and Environmental Engineering, Univ. of Waterloo, Canada.