Hu, Ziyu
Yang, Jingming
Cui, Huihui
Wei, Lixin
Fan, Rui
Funding for this research was provided by:
National Natural Science Foundation of China (No.61074099)
Natural Science Foundation of Hebei Province (No.F2016203249)
the Cultivation Program Project for Leading Talent of innovation team in Colleges and universities of Hebei Province (No. LJRC013)
Innovation Project for Postgraduate of Hebei Province (NO.CXZZBS2017049)
Article History
First Online: 14 September 2017
Compliance with ethical standards
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: The authors declared that we have no conflicts of interest to this work. We declare that we do not have any commercial or associative interest that represents a conflict of interest in connection with the work submitted.