Yu, Gang
Wang, Jing
Liu, Jiao
Cheng, Xiao
Ma, Hongmei
Wu, Hongya
Yang, Zhigang
Zhang, Guanglei
Sun, Xiuguo
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (E2017210065, E2017210096)
National Natural Science Foundation of China (51502179, 51602208)
Department of Education of Hebei Province (ZD2017067)
Article History
Received: 21 February 2019
Accepted: 3 July 2019
First Online: 13 July 2019