Contact Address 40 Dianjiangtai Road, Nanjing, China, College of Engineering, Nanjing Agricultural UniversityBrayford Pool, Lincoln, LN6 7TS, UK, School of Engineering, College of Science, University of Lincoln Email Preferred Email: lei.shu@ieee.orgMSN: lei.shu@live.ieGmail & Google Talk: lei.shu.deri@gamil.com Skype shulei8132