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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Deep Star 4000 ： ウィキペディア英語版 Deep Star 4000 Deepstar 4000 was a US Navy/Civilian Deep Submergence Vehicle designed by Jacques Cousteau and built by Westinghouse. It was built in 1965 and retired in 1972. On one Deep star 4000 dive its crew narrowly escaped tragedy when the ascent system and its backup failed at 10,000 feet down. To save the craft mercury ballast used for trim was hand pumped onto the ocean floor and the craft could rise. Some of the explorations of Deepstar 4000 were shown in the January 1971 edition of National Geographic. At the time of the article, Deepstar 4000 had already completed more than 200 dives in the Atlantic, Pacific, and Caribbean.〔Church, Ron. "Deepstar Explores the Ocean Floor." National Geographic January 1971: 110-29.〕 == History == The US Naval Oceanographic Office used the Westinghouse submersible DEEP STAR-4000 for 13 dives during October and November 1967. Marine geology, biology and the physical properties of the water column were studied on the 10 deep dives of this series. These dives were accomplished along the east coast of the United States and in the Caribbean. Great similarities in the bottom features at widely separated sites as well as dissimilarities in adjacent areas are particularly noteworthy. During this operation DEEP STAR-4000 was evaluated as a Deep Oceanographic Survey Vehicle (DOSV). The lack of an all-weather capability and the rather limited payload hampered this study but the overlapping fields of the viewports and the ability to operate in very close proximity to the bottom regardless of terrain, are desirable features that should be included on any future DOSV. 〔http://en.scientificcommons.org/18385526〕 Accurate measurements of in-situ sound speed, temperature, salinity, and pressure have been achieved during numerous replicating dives aboard Westinghouse DEEP STAR-4000 to depths of 1200 m. Manned deep submergence vehicles offer optimum methods for observing the actual ocean environment. Advantages of submersibles include: capabilities of mounting multiple equipments with short cables, visually monitoring instruments during data acquisition, and controlling proximity to the seafloor—significant improvements over suspending sensors with miles of cables from rolling, pitching surface craft. 〔http://www.freebase.com/view/en/deep_star_4000〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Deep Star 4000」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.