Funding for this research was provided by:
National Natural Science Foundation of China (11547006, 11471133)
Scientific Research Project of Hubei Provincial Department of Education (B2017039)
Undergraduate Training Program of Yangtze University for Innovation and Entrepreneurship (20150094)
Article History
Received: 19 June 2018
Accepted: 24 July 2019
First Online: 16 August 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that there is no conflict of interests regarding the publication of this article. No authors have potential conflicts of interest with reference to this work.