1. Research Unit of Cryogenic Novel Material, Korea Polar Research Institute, Incheon, South Korea
2. Department of Marine Science, College of Natural Sciences, Incheon National University, Incheon, South Korea
3. Division of Earth Sciences, Korea Polar Research Institute, Incheon, South Korea
4. Polar Science, University of Science and Technology, Daejeon, South Korea
5. Research Institute of Basic Sciences, Incheon National University, Incheon, South Korea