1. School of Mechanical and Electrical Engineering, Hubei Polytechnic University, Huangshi, P.R. China
2. School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan, P.R. China
3. School of Mechanical Engineering, Hubei University of Technology, Wuhan, P.R. China
4. School of Computer Science, South-Central Minzu University, Wuhan, P.R. China