Supported by the Doctoral Programs Foundation of Education Ministry of China(20113401110009);Natural Science Research Project of Hefei Normal University(2012kj11);Universities Natural Science Foundation of Anhui Province(KJ2013A220)
Supported by the Doctoral Programs Foundation of Education Ministry of China(20113401110009);Natural Science Research Project of Hefei Normal University(2012kj11);Universities Natural Science Foundation of Anhui Province(KJ2013A220;KJ2011B133)