基金Supported by the Key Science and Technology Project of Ministry of Education(207407) NSF of Anhui Educational Bureau(2006kj251B)the Special Project Grants of AnhuiNormal University (2006xzx08)
基金Supported by National Natural Science Foundation of China(10971220)the FANEDD(200919)+1 种基金the Fundamental Research Funds for the Central UniversitiesYouth Foundation of China University of Mining and Technology(2007A029)