Qiao, Haixia
Meng, Yali
Zhang, Yanxia
Sun, Jiaxing
Wang, Tao
Zhang, Xiaojie
Wang, Feifan
Kang, Yan-Fei
Funding for this research was provided by:
Natural Science Foundation of Hebei Province (B2016405026)
Young Elitist Foundation of Hebei Province (BJ2016003)
Guidance Projects of Science and Technology of Zhangjiakou City (1621122H)
Guide Projects of Department of Education of Hebei Province (Z2017026)
Article History
Received: 9 October 2017
Accepted: 22 January 2018
First Online: 1 February 2018