Funding for this research was provided by:
National Natural Science Foundation of China (61501148)
Natural Science Foundation of Heilongjiang Province (QC2017075)
Postdoctoral Research Foundation of China (2018M631914)
Heilongjiang Provincial Postdoctoral Science Foundation (LBH-Z17042)
Training Program for Young Creative Talents of Ordinary Universities in Heilongjiang (UNPYSCT-2017078)
Article History
Received: 12 September 2018
Accepted: 9 February 2019
First Online: 27 February 2019