Prof. Jinsong Leng, Dr. Liwu Liu, Mr.Hetao Chu, Mr. Xiaogang Guo, Mr. Jinrong Li, Ms. Tianyang Zhou (Undergraduate student) and Mr. Fan Fei (Undergraduate student) attended the 21th SPIE Smart Structures/NDE conference, which was held on March 9-13, 2014.San Diego, California, USA.