Zhang, Xiaofeng
Wang, Gang
Su, Qingtang
Guo, Qiang
Zhang, Caiming
Chen, Beijing
Funding for this research was provided by:
Doctoral Foundation of Ludong University (LY2015035)
NSF of China (61502218)
NSF of Shandong Province (ZR2013FL008, ZR2014FM005)
NSF of China (61232016, U1405254)
NSF of China (61373078, 61472220)
NSF of China (61202150)