An, Gaoyun
Liu, Shuai
Ruan, Qiuqi
Funding for this research was provided by:
the National Natural Science Foundation of China (61472030)
the National Natural Science Foundation of China (61370127)
the fundamental research funds for the central universities (2013JBM020)
the fundamental research funds for the central universities (2013JBZ003)
Program for Innovative Research Team in University of Ministry of Education of China (IRT201206)
Beijing Higher Education Young Elite Teacher Project (YETP0544)