1. Department of Civil and Environmental Engineering, National University of Singapore, Singapore, Singapore
2. School of Mechanical Engineering, Southeast University, Nanjing, China
3. Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming, China
4. School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing, China
5. Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA