Yuan, Dachao
Guo, Shuang
Hou, Shuaihang
Ma, Yuejin
Wang, Jianglong
Wang, Shufang
Funding for this research was provided by:
National Natural Science Foundation of China (No. 51372064, 11703004)
Natural Science Foundation of Hebei Province (No. E2017201227, E2017201209, QN2017017)
Article History
Received: 29 August 2018
Accepted: 12 October 2018
First Online: 28 November 2018
Competing Interests
: The authors declare that they have no competing interests.
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