Institution: | [1]Research Center for Aircraft Parts Technology,Gyeongsang National University;School of Mechanical Engineering,Gyeongsang National University;R & D Center,DongHwa Entec; [2]School of Mechanical Engineering, Gyeongsang National University, Jinju 660 -701, S. Korea; [3]R & D Center, DongHwa Entee, Busan 618-230, S. Korea |