1. Department of Mechanical Engineering Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
2. Department of Nano Manufacturing Technology Korea Institute of Machinery and Materials (KIMM) Daejeon 34103 Republic of Korea
3. Department of Ocean System Engineering Jeju National University Jeju 63243 Republic of Korea
4. Agency for Defense Development (ADD) Changwon 51678 Republic of Korea