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Biographies 
0 Jian Ji, Received his B.E degree and M.E. degree 
from Beihang University, Beijing, China, in 
1995 and 1998, and Ph.D. degree from Chengdu 
University of Technology Chengdu, China, in 
2006, now is an associate professor of Chengdu 
University of Technology, Chengdu, China.