Du, Feng
Wang, Hongmei
Jin, Xin
Deng, Wenan
Li, Chuan
Ren, Zhixiang
Yan, Hao
Yin, Bin
Funding for this research was provided by:
National Natural Science Foundation of China (21706290)
Natural Science Foundation of Shandong Province (ZR2017MB004)
Innovative Research Funding from Qingdao City (17-1-1-80-jch)
Fundamental Research Funds for the Central Universities (17CX02017A)
New Faculty Start-Up Funding from China University of Petroleum (YJ201601059)
Article History
Received: 2 October 2018
Accepted: 10 January 2019
First Online: 1 February 2019
Compliance with Ethical Standards
:
: All authors declare that: (i) no support, financial or otherwise, has been received from any organization that may have an interest in the submitted work; and (ii) there are no other relationships or activities that could appear to have influenced the submitted work.