Funding for this research was provided by:
National Natural Science Foundation of China (71271034)
National Social Science Foundation of China (15CGL031)
Fundamental Research Funds for the Central Universities (3132016306, 3132018160)
Program for Dalian High Level Talent Innovation Support (2015R063)
Natural Science Foundation of Liaoning Province (20180550307)
National Scholarship Fund of China for Studying Abroad
Article History
Received: 9 September 2018
Accepted: 8 February 2019
First Online: 12 March 2019