Zhou, Guoqiang
Li, Yunfei
Ma, Yanyan
Liu, Zhu
Cao, Lili
Wang, Da
Liu, Sudan
Xu, Wenshi
Wang, Wenying
Funding for this research was provided by:
the National Natural Science Foundation of China (21471044, 21001038)
the Youth Talent Fund Project of Hebei Education Departmen (BJ2014007)
the College Students Innovative Training Project of Hebei University (201410075072)