Fang, Liandi
Wu, Yongfeng
Funding for this research was provided by:
the Humanities and Social Sciences Foundation for the Youth Scholars of Ministry of Education of China (12YJCZH217)
the Key NSF of Anhui Educational Committe (KJ2014A255)
the Anhui provincial natural science research project of university fundation (KJ2013B304)
he natural science research project of Tongling University foundation (2012tlxy13)