1. Postdoctoral Research Fellow, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Texas at Austin.
2. Associate Professor, Dept. of Civil and Environmental Engineering, American Univ. of Beirut, Riad El Solh, Beirut.
3. Professor, Dept. of Civil and Environmental Engineering, American Univ. of Beirut, Riad El Solh, Beirut.