Li, Jiechen
Li, Xueyong
Feng, Xiang
Wang, Bing
Zhao, Bihai
Wang, Lei http://orcid.org/0000-0002-5065-8447
Funding for this research was provided by:
National Natural Science Foundation of China (61873221, 61672447)
Natural Science Foundation of Hunan Province (2018JJ4058, 2017JJ5036)
CERNET Next Generation Internet Technology Innovation Project (NGII20160305, NGII20170109)
Article History
Received: 8 February 2019
Accepted: 12 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.