Li, Hongyan
Wang, Yingxing
Wang, Chao
Zhang, Shaohan
Li, Shenghui
Zhou, Guoqiang
Wang, Shuxiang
Zhang, Jinchao
Funding for this research was provided by:
Natural Science Foundation of Hebei province in China (B2015201069, B2015201213)
Youth Fund Project of Hebei Education Department (QN2014131)
Bureau of Baoding city science and technology project (14ZF083)
National Natural Science Foundations of China (21271059, 31470961)