1. Associate Professor, School of Earth Sciences and Engineering, Nanjing Univ., Nanjing 210093, China; formerly, Postdoctoral Fellow, Dept. of Civil and Structural Engineering, The Hong Kong Polytechnic Univ., Hung Hom, Hong Kong, China.
2. Professor, Dept. of Civil and Structural Engineering, The Hong Kong Polytechnic Univ., Hung Hom, Hong Kong, China (corresponding author).
3. Associate Professor, Dept. of Civil Engineering, The Univ. of Hong Kong, Pokfulam Rd., Hong Kong, China.
4. Professor, Dept. of Electrical Engineering, The Hong Kong Polytechnic Univ., Hung Hom, Hong Kong, China.