1. Department of Mechanical Engineering and The University of Hong Kong, Hong Kong, China.
2. The College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, China.
3. Department of Orthopaedics and Traumatology, The University of Hong Kong, Hong Kong, China.
4. Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, Pennsylvania, USA.
5. School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, China.