Ma, Xinying
Wang, Xueliang
Chen, Meifeng
Li, Fuchuan
Funding for this research was provided by:
he National Natural Science Foundation of China (21105023)
A Project of Shandong Province Higher Educational Science and Technology Program (J14LC55)
the Natural Science Foundation of Shandong Province, China (ZR2014BL020, ZR2015BL014)
the Shandong Province Science and Technology Development Plan Grant (2013GSF12106)
Scientific Research Foundation of Heze University (XY14KJ02)