Wu, Youxi
Wang, Yuehua
Liu, Jingyu
Yu, Ming
Liu, Jing
Li, Yan
Funding for this research was provided by:
National Natural Science Foundation of China (61673159)
Natural Science Foundation of Hebei Province (F2016202145)
Science and the Technology Project of Hebei Province (15210325)
Graduate Student Innovation Program of Hebei Province (CXZZSS2017037)
Article History
Received: 27 October 2017
Revised: 20 December 2017
Accepted: 28 December 2017
First Online: 9 January 2018