基金The National Natural Science Foundation of China(No.60874030,60574006,60404006)the Natural Science Foundation of the Jiangsu Higher Education Institutions of China(No.07KJB510125)
基金Supported by National Natural Science Foundation of China(60935001,61174061,61074033)Anhui Provincial Natural Science Foundation(11040606M143)Fundamental Research Funds for the Central Universities and the Program for New Century Excellent Talents in University