Projects(10825209, 50872117) supported by the National Natural Science Foundation of China
Project([2009]17) supported by Changjiang Scholar Incentive Program, China
Project([2007]362) supported by Hunan's Prestigious Furong Scholar Award, China
Project supported by Aid Program for Science and Technology Innovative Research Team in Higher Educational Instituions of Hunan Province, China
Project(09JJ7004) supported by the Natural Science Foundation of Hunan Province for Innovation Group, China