Funding for this research was provided by:
Shandong Provincial Natural Science Foundation (ZR2019MF054)
Foundation of Science and Technology On Information Assurance Laboratory (KJ-17-004)
2017 Weihai University Co-construction Project
Foundation of China Academy of Space Technology (WT-TXYY/ WLZDFHJY003)
Fundamental Research Funds for the Central Universities (HIT.NSRIF.2020099)
National Natural Science Foundation of China (61902091, 61702139)
Shandong College Science and Technology Planning Project (J18KB166)
University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province (UNPYSCT-2016036)
Article History
Received: 17 April 2019
Accepted: 17 January 2020
First Online: 7 February 2020