Chi, Yuhua
Zhao, Lianming
Zhu, Houyu
Guo, Wenyue
Funding for this research was provided by:
the Program for Natural Science Foundation of Shandong Province (ZR2015BQ009, ZR2016BL12, ZR2017MB053)
the Fundamental Research Funds for the Central Universities (17CX02031A, 15CX05068A, 15CX08010A)
Qingdao independent innovation program (16-5-1-88-jch)