1. School of Mechanical; Aerospace and Systems Engineering; Korea Advanced Institute of Science and Technology (KAIST); 291 Daehak-ro Yuseong-gu Daejeon 305-701 Republic of Korea
2. School of Mechanical Systems Engineering; Chonnam National University; 300 Yongbong-dong Buk-gu Gwang-Ju 500-757 Republic of Korea