ZHU Bao-Yan Ph.D. candidate at Northeastern University, professor at Shenyang Jianzhu University. Her research interests include robust control and fuzzy control for descriptor systems.(E-mail: zbyl109@163.com) ZHANG Qing-Ling Professor at Northeastern University. His research interests include decentralized control and robust control for large-scale descriptor systems and stability theory. TONG Shao-Cheng Professor in the Department of Mathematics and Physics at Liaoning Institute of Technology. His research interests include fuzzy control, nonlinear adaptive control, and intelligent control.