The National Natural Science Foundation of China(Nos.11247213,61368002,11304010,11264030,61168001);the China Postdoctoral Science Foundation(No.2013M531558);the Jiangxi Postdoctoral Research Project(No.2013KY33);the Natural Science Foundation of Jiangxi Province(No.20142BAB217001);the Foundation for Young Scientists of Jiangxi Province(Jinggang Star)(No.20122BCB23002);the Research Foundation of the Education Department of Jiangxi Province(Nos.GJJ13051,GJJ13057)