1. Ph.D. Candidate, College of Water Conservancy and Hydropower Engineering, Hohai Univ., Nanjing 210098, China; Visiting Ph.D. Student, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada T6G 1H9.
2. Professor, College of Agricultural Science and Engineering, Hohai Univ., Nanjing 210098, China.
3. Professor, Dept. of Civil and Environmental Engineering, Univ. of Alberta, Edmonton, AB, Canada T6G 1H9; Professor, College of Civil and Environmental Engineering, Ningbo Univ., Zhejiang 315211, China.
4. Associate Professor, College of Agricultural Science and Engineering, Hohai Univ., Nanjing 210098, China (corresponding author).