About TAKAGI Toshiyuki
About National Inst. Technol., Kushiro Coll., Hokkaido, JPN
About TATEYAMA Kazutaka
About Kitami Inst. Technol., Hokkaido, JPN
About Proceedings of the International Symposium on Okhotsk Sea & Sea Ice
About sea ice
About icebreaker
About ice breaking
About antarctic circle
About arctic circle
About ice thickness
About icing
About drift ice
About performance
About mounted radar
About ship operation
About seagoing qualities
About marine radar
About Other special ships
About Nautical instruments,navigation systems,electric installation
About Ship performance
About Navigation and practical business
About 船舶
About レーダ画像
About 砕氷船
About 航海
About 能力