基金Supported by National Natural Science Foundation of China(No.50969007 and 50978099)Ph.D.Programs Foundation of Ministry of Education of China(No.20100480609)+2 种基金Natural Science Foundation of Jiangxi Province(No.20114BAB206012)Project of Jiangxi Provincial Department of Education Science and Technology(No.GJJ12629 and GJJ11252)the Second Round Students'Scientific Research Training Plan of Nanchang Institute of Technology~~