RONGRONG YANG received B.S. and M.S. degrees in control theory and control engineering from the Lanzhou University of Technology, Lanzhou, China, in 2002 and 2007, respectively, and a Ph.D. degree in mechatronic engineering from Beihang University, Beijing, China, in 2019. He is currently a Lecturer with the School of Mechanical and Electrical Engineering, Lanzhou University of Technology. His current research interests include servo control of electromechanical and electro hydraulic systems, robust adaptive control, and disturbance active compensation control.