Wang, W. G.
Li, X. Y.
Hao, G. L.
Funding for this research was provided by:
Natural Science Foundation of Jilin Province (11604286, 51661032)
Yan’an University National Natural Science Foundation (YD2015-07, YDBK2014-01)
the Shanxi Provincial College students’ innovative projects (D2017143, D2017163)
Article History
Received: 19 November 2018
Accepted: 9 March 2019
First Online: 15 March 2019