Nan, Chunxia
Dong, Jingran
Jiao, Xiaoyan
Shi, Hongmei
Duan, Jie
Shi, Tiesheng
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (B2015201073)
You Bo Program of Hebei University (YB201403)
Natural Science Foundation of Hebei University (2014-11)
National Natural Science Foundation of China (CN) (81273128)