1. Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA 15261.
2. Associate Professor and William Kelper Whiteford Faculty Fellow, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA 15261.
3. Doctoral Student, Dept. of Civil and Environmental Engineering, Univ. of Pittsburgh, 936 Benedum Hall, Pittsburgh, PA 15261.