1. Ph.D. Candidate, Dept. of Civil, Architecture, and Environmental Engineering, MO Univ. of S&T, Rolla, MO 65409.
2. Assistant Research Professor, Dept. of Electrical and Computer Engineering, MO Univ. of S&T, Rolla, MO 65409.
3. Dept. of Electrical and Computer Engineering, MO Univ. of S&T, Rolla, MO 65409.
4. Professor and Abbett Distinguished Chair, Dept. of Civil, Architecture, and Environmental Engineering, MO Univ. of S&T, Rolla, MO 65409 (corresponding author).
5. Schlumberger Distinguished Professor, Dept. of Electrical and Computer Engineering, MO Univ. of S&T, Rolla, MO 65409.