High-Speed Video Observation of Tympanic Membrane Rupture in Guinea Pigs(<Special Issue>Bioengineering)
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概要
- 論文の詳細を見る
In this study, the tympanic membrane (TM) of the guinea pig was exposed to a blast wave generated by micro-explosion of 10 mg silver azide, and the time history of TM rupture was recorded using a high-speed video camera. The relationship between the process of TM rupture and the peak pressure of the blast wave was then examined. The critical value which caused the TM rupture was found to be 192 dB SPL (79.6 kPa), and when this level of pressure was applied to the TM, tears were immediately caused in the radial direction, although they did not subsequently expand. When pressures above 195 dB SPL (112 kPa) were applied to the TM, it suffered a perforation, and this perforation continued to expand for several milliseconds, even after disappearance of the pressure change caused by the blast wave.
- 2003-12-15
著者
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TAKAYAMA Kazuyoshi
Shock Wave Research Center, Institute of Fluid Science, Tohoku University
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ITO Fumiaki
Department of Information Network Engineering, Musashi Institute of Technology
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KOBAYASHI Toshimitsu
Department of Otolaryngology, Nagasaki University School of Medicine
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Kobayashi Toshimitsu
Department Of Cardiovascular Surgery Tohoku University Graduate School Of Medicine
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WADA HIROSHI
Department of Surgery, Graduate School of Medicine, Osaka University
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Wada Hiroshi
Department Of Cardiovascular Science And Medicine Chiba University Graduate School Of Medicine
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Takayama Kazuyoshi
Shock Wave Research Center Institute Of Fluid Science Tohoku University
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Ito Fumiaki
Department Of Biochemistry Faculty Of Pharmaceutical Sciences Setsunan University
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Ito Fumiaki
Department Of Mechanical Engineering Tohoku University
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Kobayashi T
Department Of Cardiovascular Surgery Tohoku University Graduate School Of Medicine
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KOIKE Takuji
Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communicatio
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Koike Takuji
Department Of Mechanical Engineering And Intelligent Systems The University Of Electro-communication
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Wada H
Department Of Bioengineering And Robotics Tohoku University
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Takayama Kazuyoshi
Shock Wave Research Center Tohoku University
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Wada Hiroshi
Department Of Bioengineering And Robotics Tohoku University
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Koike Takuji
Department Of Mechanical Engineering And Intelligent Systems The University Of Electro-communication
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Kosho Tomoki
Department Of Medical Genetics Shinshu University School Of Medicine
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