Xu, Jing
Zhao, Lele
Hou, Wenlong
Guo, Huiyun
Zhang, Haiquan
Funding for this research was provided by:
the National Natural Science Foundation of China (51173155)
the National Natural Science Foundation of China (51472214)
the Colleges and Universities Science and Technology Research Project of Hebei Province (QN2016130)
Article History
Received: 12 October 2017
Accepted: 15 March 2018
First Online: 5 April 2018