1. Department of marine environment, Korea Maritime Transportation Safety Authority, Sejong, South Korea
2. Department of Power System Engineering, Chonnam National University, Yeosu, South Korea
3. Research institute of future technology, Korea Petroleum Quality & Distribution Authority, Cheongju, South Korea
4. Pohang center, Korea Institute of Geoscience and Mineral Resources, Heunghae-eup, Buk-gu, Pohang, South Korea
5. Division of Marine System Engineering, Korea Maritime and Ocean University, Busan, South Korea