研究者情報 | 神奈川大学

スギモト　タケシ Sugimoto Takeshi 杉本　剛所属神奈川大学情報学部システム数理学科神奈川大学大学院工学研究科工学専攻（情報システム創成領域）職種教授
言語種別	日本語
発行・発表の年月	2008/08
形態種別	その他
標題	The Fossils of Ectoplasm in a Nutshell: A Brief History of the Challenges into the Air in the Animal Kingdom
執筆形態	単著
掲載誌名	12th Asian Congress of Fluid Mechanics Program and Abstract Book
巻・号・頁	28-29頁
概要	Evolution of flight in the animal kingdom is a series of challenges for survival in severe natural environments, in particular the thin air and the predators. Although flight is an efficient way of transportation, it requires some special organs suited for respiration and locomotion. Considering about the time history of oxygen concentration in the atmosphere, one knows the reason for the timing of challenges into the air: insects appears in the oxygen rich air; diverse evolution of pterosaurs, dinosaurs and birds occurs under the thin air condition with the aid of air-sac systems. Wind-tunnel experiments reveal the fact about the ancient wings that flapping membrane wings is an efficient way of obtaining thrust owing to the phase difference between heaving and feathering brought about by the passive motion of the trailing-edge.