1. Ph.D. Candidate, School of Civil and Construction Engineering, Oregon State Univ., Corvallis, OR; Lecturer, Dept. of Civil Engineering, Faculty of Engineering, Islamic Univ. of Madinah, Madinah, Saudi Arabia.
2. Professor, School of Civil and Construction Engineering, Oregon State Univ., Corvallis, OR.
3. Assistant Professor, Dept. of Civil and Environmental Engineering, Bucknell Univ., Lewisburg, PA.