Funding for this research was provided by:
National Natural Science Foundation of China (U1508209, 11072049, 11472073)
Key Project of Chinese National Programs for Fundamental Research and Development (2015CB057306)
Fundamental Research Funds for the Central Universities (DUT16TD09)
Liaoning BaiQianWan Talents Program
Article History
Received: 18 July 2018
Revised: 8 October 2018
Accepted: 29 October 2018
First Online: 12 November 2018