1. Associate Professor, National Center for Materials Service Safety, Univ. of Science and Technology Beijing, Beijing 100083, China.
2. Postdoctoral Research Associate, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.
3. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.
4. Professor, School of Mechanical Engineering, Iran Univ. of Science and Technology, Narmak, 16846 Tehran, Iran.
5. Professor, Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., Blacksburg, VA 24061.
6. Assistant Professor, School of Civil Engineering, Shandong Univ., Jinan, Shandong Province 250061, China (corresponding author).