1. Graduate Student, Dept. of Architectural Engineering, Pennsylvania State Univ., University Park, PA.
2. Professor and Head, Dept. of Architectural Engineering, Pennsylvania State Univ., University Park, PA 16802-1417.
3. Research Professor, Graduate Center for Materials Research, Univ. of Missouri–Rolla, Rolla, MO 65409-1170.
4. Research Associate, Dept. of Architectural Engineering, Pennsylvania State Univ., University Park, PA.
5. Professor of Engineering Mechanics and Aerospace Engineering, School of Engineering, Univ. of Missouri–Rolla, MO 65409-0840.