1. Key Laboratory of Traffic Safety on Track of Ministry of Education, School of Traffic and Transportation Engineering, Central South University, Changsha, China
2. Joint International Research Laboratory of Key Technology for Rail Traffic Safety, Central South University, Changsha, China
3. Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong
4. Key Laboratory of High Efficiency and Clean Mechanical Manufacture (Ministry of Education), School of Mechanical Engineering, Shandong University, Jinan, China