Su, Lining
Wang, Chunjie
Zheng, Chenqing
Wei, Huiping
Song, Xiaoqing
Funding for this research was provided by:
Key Project of Hebei North University (120177)
the Science and Technology Research Project of Hebei Province Department Institutions of Higher Learning (No. Z2015047)
science and technology bureau research development plan of zhangjiakou city in Hebei (No. 0911021D-4)
Article History
Received: 19 December 2017
Accepted: 26 March 2018
First Online: 13 April 2018
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