Funding for this research was provided by:
National Natural Science Foundation of China (11571058, 11471065)
the Fundamental Research Funds for the Central Universities (DUT18LK18)
Dalian High Level Talent Innovation Programme (2015R051)
the Hihe-level innovative and entrepreneurial talents support plan in Dalian (2017RQ041)
Article History
Received: 24 June 2018
Accepted: 8 November 2018
First Online: 17 November 2018