Dan Ding, PhD is a Rehabilitation Scientist at the Human Engineering Research Laboratories, Department of Rehabilitation Science of Technology, University of Pittsburgh. She is now involved in the research projects including wheelchair back-driving study and force sensing joystick study. She received her Ph.D degree in Mechanical and Automation Engineering from the Chinese University of Hong Kong, HK SAR, in October 2001. She graduated with honor from Harbin Institute of Technology, China, in 1995 with the B.E. in Mechanical Engineering and the M.E. in Robotics in 1997. Her research interests include robotics, multi-fingered robot hands, dexterous manipulation, virtual reality and wheelchair control. She has published over 10 papers in refereed professional journals and international conference proceedings. She is a member of IEEE.