Yun Ji is an associate professor at Yanshan University. He received a B.S. degree in Mechanical Engineering and Automation from Northeastern University, Liaoning, China, in 2012 and a Ph.D. degree in Mechanical Design and Theory from China University of Mining and Technology, Jiangsu, China, in 2019. He has been working at the School of Mechanical Engineering at Yanshan University since 2021, serving as an associate professor and doctoral and master's supervisor. His research focuses on exploring the characteristics of large-scale particles' swirling pneumatic transport in pipelines.