Xu, Hongqiang
Li, Qi
Kong, Lingfeng
Yu, Hong
Liu, Shikai
Funding for this research was provided by:
National Natural Science Foundation of China (31772843)
Fundamental Research Funds for the Central Universities (201762014)
Industrial Development Project of Qingdao City (17-3-3-64-nsh)
Article History
Received: 15 March 2019
Accepted: 15 May 2019
First Online: 18 June 2019