Prof. Dr. Feng Guo is a Professor at the School of Mechanical and Automotive Engineering, Qingdao University of Technology. He completed his PhD studies at the City University of Hong Kong, and has been awarded the First Prize of Qingdao Natural Science, and the Second Prize of Science and Technology Award of Shandong Higher Education Institutions. He has published over 60 academic papers in important academic journals in the field of tribology, and serves as a Member of the Academic Committee, State Key Laboratory of Tribology, Tsinghua University, China. His research topics mainly include hydrodynamic lubrication, lubricant quantity starvation, and film thickness.