基金supported by the National Natural Science Foundation of China(No.31301880)China Postdoctoral Science Foundation(No.2013M541246)+2 种基金the Specialized Research Fund for the Doctoral Program of Higher Education of China(No.20112136120002)the Scientific Research Fund of Liaoning Provincial Education Department,China(No.L2011187)the Scientific and Technological Research Projects of Dalian City,Liaoning Province,China(No.2011J21DW014)