Wang, Junjie
Zhao, Lingling
Su, Xiaohong
Shi, Chunmei
Ma, JiQuan
Funding for this research was provided by:
the National Natural Science Foundation of China (61305013)
the National Natural Science Foundation of China (61175027)
the Fundamental Research Funds for the Central Universities (HIT.NSRIF.2014071)
the Doctoral Program of Higher Education of China (20132302120044)