Affiliation: | (1) Department of Mechanical Eng., College of Eng., Pukyong National University, San 100, Yongdang-Dong, 608-739 Nam-Gu, Pusan, Korea;(2) Department of Mechanical Eng., Hochiminh City University of Technology, 268 Ly Thuong Kiel, Dist. 10, Hochiminh City, Vietnam |