作者机构:[1]Harbin Institute of Technology, Harbin 150001, China, [2]Heilongjiang University, Harbin 150080, China
相关基金:Project supported by the National Natural Science Foundation of China (Grant No. 60877065), Science and Technology Innovation Talents Special Funds of Harbin, China (Grant No. RC2008XK009004), and the Heilongjiang Provincial Education Department, China (Grant No. 11544035).