Funding for this research was provided by:
National Natural Science Foundation of China (51572053, 61378029, 61775053)
Science Foundation for Outstanding Youths of Heilongjiang Province (JC2016016)
Science Foundation for Youths of Heilongjiang Province (QC2017078)
Fundamental Research funds for the Provincial Universities (WL17B14)
Article History
Received: 4 June 2018
Accepted: 16 August 2018
First Online: 20 August 2018