1. School of Information Science & Engineering, Gansu University of Chinese Medicine, Lanzhou 730000, China
2. Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China
3. Province Key Laboratory for Molecular Medicine of Major Diseases and Prevention and Treatment with Traditional Chinese Medicine of Gansu Colleges and Universities, Gansu University of Chinese Medicine, Lanzhou 730000, China
4. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu 730000, China