博士点专项基金20093401110006;安徽省高校省级自然科学研究项目KJ2010A026;安徽大学引进人才及学术带头人引进项目32030066;安徽大学211工程创新团队计划项目;the Specialized Research Fund for the Doctoral Program of Higher Education of China20093401110006;by the Natural Science Foundation of the Department of Education of Anhui ProvinceKJ2010A026;by the Introduction Project of Academic and Technology Leaders in Anhui University32030066;by the Innovative Research Team Program of 211 Project in Anhui University