About YAMASAKI SHIN'YA
About AKIYAMA YUTA
About SERA WATARU
About 日本航海学会講演予稿集(Web)
About strait
About ship
About operation(transportation)
About navigation(location)
About marine traffic
About traffic controller
About ship handling
About tidal current
About VHF
About mobile communication
About radio transmission
About traffic control
About 海上交通センター
About traffic control
About 航行経路
About 指示発令場所
About 船陸間コミュニケーション
About 転流【潮流】
About 来島海峡
About Waterborne transportation and service,etc.
About Mobile communication
About 航法
About 研究
About 航行
About 経路
About 移行