Dr. Jiajun Xu received his B.S. degree in mechanical engineering from Hefei University of Technology in 2016, and his Ph.D. degree from University of Science and Technology of China and City University of Hong Kong concurrently in 2021. After that, he joined Nanjing University of Aeronautics and Astronautics and is currently an assistant professor at the College of Mechanical and Electrical Engineering. His research interests include rehabilitation robotics, biomimetic robotics, human–robot interaction control and machine learning. He has published many papers and patents in these fields.