XIAOPENG WEI received the B.E. degree in mechanical engineering and the M.E. and the Ph.D. degrees in CAD\&CG from the School of Mechanical Engineering, Dalian University of Technology, Dalian, in 1982, 1986, and 1993, respectively. He is currently a Professor in Dalian University of Technology. He has authored or coauthored over 150 papers in his research areas. His current research interests are neural networks, artificial intelligence, DNA computing and mechanical design.