1. School of Mechatronic Engineering, Qilu Institute of Technology, Ji’nan, Shandong, China;
2. Research Institute of Industry of Fine Chemicals and Polymers, Zibo National New&Hi-tech Industrial Development Zone, Zibo, Shandong, China;
3. Shandong Research Institute, Tianjin University, Zibo, Shandong, China;
4. Administration of Work Safety, Zibo National New&Hi-tech Industrial Development Zone, Zibo, Shandong, China