翻訳と辞書 Words near each other ・ Lines Across Maps ・ Lines and Shadows ・ Lines Bros ・ Lines Composed in a Wood on a Windy Day ・ Lines from My Grandfather's Forehead ・ Lines in My Face ・ Lines in the Sand (book) ・ Lines in the Sand (House) ・ Lines in Wax ・ Lines of Action ・ Lines of Communication ・ Lines of Communication (Babylon 5) ・ Lines of Communication (London) ・ Lines of Contravallation of Gibraltar ・ Lines of Fire ・ Lines of non-extension ・ Lines of Stollhofen ・ Lines of Torres Vedras ・ Lines of Vasilyevsky Island ・ Lines of Weissenburg ・ Lines of Wellington ・ Lines of Zahn ・ Lines on an Autumnal Evening ・ Lines On Palms – EP ・ Lines on the Antiquity of Microbes ・ Lines per inch ・ Lines Review ・ Lines written a few miles above Tintern Abbey ・ Lines Written at Shurton Bars ・ Lines, Vines and Trying Times Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Lines of non-extension ： ウィキペディア英語版 Lines of non-extension In the field of biomechanics, the lines of non-extension are notional lines running across the human body along which body movement causes neither stretching or contraction. Discovered by Arthur Iberall in work beginning in the 1940s, as part of research into space suit design,〔Iberall, A.S., "The experimental design of a mobile pressure suit", Journal of Basic Engineering, Transactions of the ASME, June 1970, p. 251-264〕 they have been further developed by Dava Newman in the development of the Space Activity Suit. They were originally mapped by Iberall by drawing a series of circles over a portion of the body and then watching their deformations as the wearer walked around or performed various tasks. The circles deform into ellipses as the skin stretches over the moving musculature, and these deformations were recorded. After a huge number of such measurements the data is then examined to find all of the possible deformations of the circles, and more importantly, the non-moving points on them where the original circle and the deformed ellipse intersect (at four points per circle). By mapping these points over the entire body, a series of lines are produced. These lines may then be used to direct the placement of tension elements in a mechanical counterpressure spacesuit such as the Space Activity Suit, to enable constant suit pressure regardless of the motion of the body.〔 == References == 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「Lines of non-extension」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.