Li, Guobao
Song, Peng
Wang, Kaili
Xue, Qi
Sui, Weiping
Kong, Xiangzheng
Funding for this research was provided by:
The International Science Cooperation Project of Shandong Province, China (2012GHZ20205)
The Doctor Foundation of University of Jinan (No.XBS1204)
The Science Research Foundation of University of Jinan (No. XKY1214)
The National Natural Science Foundation of China (Nos. 51102114)