基金The National Natural Science Foundation of China(1116102711262009+5 种基金11226132)the Natural Science Foundation of Gansu Province(1308RJZA113)the Scientific Research Projects in Colleges and Universities of Gansu Province(2013A-043)the Fundamental Research Funds for the Gansu Universities(212084213061)the Youth Science Foundation of Lanzhou Jiaotong University(2012019)
基金Supported by the Natural Science Foundation of China (10771001)the Anhui Provincial Natural Science Foundation (1308085MA01)the Research Fund for Doctor Station of Ministry of Education of China (20113401110001)