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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 Haldane's decompression model ： ウィキペディア英語版 Haldane's decompression model Haldane's decompression model is a decompression table for diving at sea level that was proposed in 1908 by the eminent Scottish physiologist, John Scott Haldane (2 May 1860 – 14/15 March 1936),〔("The United States Navy Experimental Diving Unit" )〕 who was famous for intrepid self-experimentation. Haldane experimented on goats and prepared the first recognized decompression table for the British Admiralty in 1908 based on extensive experiments on goats and other animals using a clinical endpoint of symptomatic DCS. Haldane observed that goats, saturated to depths of of sea water, did not develop decompression sickness (DCS) if subsequent decompression was limited to half the ambient pressure. Haldane constructed schedules which limited the critical supersaturation ratio to "2", in five hypothetical body tissue compartments characterized by their halftime. Halftime is also termed Half-life when linked to exponential processes such as radioactive decay. Haldane's five compartments (halftimes: 5, 10, 20, 40, 75 minutes) were employed in decompression calculations and staged procedures for fifty years. Previous theories to Haldane worked on "uniform compression", as Paul Bert pointed in 1878 that very slow decompression could avoid the caisson disease, then Hermann von Schrötter defined in 1895 the safe "uniform decompression" rate to be of "one atmosphere per 20 minutes". Haldane in 1907 worked on "''staged Decompression''" and proved it to be safer than "''uniform decompression''" and produced his decompression tables on that basis. ==Previous work== 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「Haldane's decompression model」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.