1. School of Information and Control Engineering, China University of Mining and Technology, Xuzhou, China
2. School of Mathematics, Liaoning University, Shenyang, China
3. Research Center for Computer Simulating and Information Processing of Bio-Macromolecules of Liaoning Province, Shenyang, China
4. Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Science, Ürümqi, China
5. School of Life Science, Liaoning University, Shenyang, China