1. Professor, Dept. of Civil and Environmental Engineering, 325 John Tickle Building, Univ. of Tennessee, Knoxville, TN 37996 (corresponding author).
2. Graduate Student, Dept. of Civil and Environmental Engineering, 325 John Tickle Building, Univ. of Tennessee, Knoxville, TN 37996.
3. Associate Professor, Dept. of Civil and Architectural Engineering, Qatar Univ., Qatar.
4. Undergraduate Student, Dept. of Chemical and Biomolecular Engineering, Univ. of Tennessee, Knoxville, TN 37996.
5. Staff Scientist, CNMS Nanofabrication Research Lab, Oak Ridge National Laboratory, Bldg. 8610, M-G68, MS 6487, Oak Ridge, TN 37831.