Zhou, D. https://orcid.org/0000-0002-0218-3272
Wang, X. https://orcid.org/0000-0002-4229-6271
Funding for this research was provided by:
National Natural Science Foundation of China (51405232)
Nanjing University of Information Science and Technology (10288)
the Fundamental Research Funds for the Central Universities (30918011303)
Article History
Received: 10 April 2018
Revised: 21 September 2018
Accepted: 25 September 2018
First Online: 15 October 2018