1. Graduate Researcher, Dept. of Civil and Environmental Engineering, Univ. of North Carolina at Charlotte, Charlotte, NC.
2. Postdoctoral Researcher, Dept. of Civil and Environmental Engineering, Univ. of North Carolina at Charlotte, Charlotte, NC.
3. Professor and Chair, Dept. of Civil and Environmental Engineering, Univ. of North Carolina at Charlotte, Charlotte, NC.
4. Associate Professor, Dept. of Civil and Environmental Engineering, Michigan State Univ., East Lansing, MI.