作者机构:[1]State Key Laboratories of Mechanical Transmission, Chongqing University, Chongqing 400030, China, [2]College of Mathematics and Physics Science, Chongqing University, Chongqing 400030, China, [3]College of Software Engineering, Chongqing University, Chongqing 400030, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant No. 50775226), the Chongqing Natural Science Foundation (Grant No. CSTC, 2008BB3308) and the Innovation Training Foundation of Chongqing University (Grant No. CDCX004).