1. Institute of Operations Research and Cybernetics, Hangzhou Dianzi University, Hangzhou, China
2. College of Automation, Harbin Engineering University, Harbin, China and College of Engineering and Science, Victoria University, Melbourne, Australia
3. Department of Mechanical Engineering, Washington University in St. Louis Campus, St. Louis, MO, USA
4. Graduate School of Science and Technology, Tokai University, Toroku, Kumamoto, Japan