演講公告

演講主題：Wave phenomena in the cochlea: From micro- to macro- mechanics
主講人：劉奕汶教授 (國立清華大學電機工程學系)
演講日期：2016年 3 月 8 日(星期二) 14:00 -15:00
演講地點：(光復校區) 科學一館223 室
茶會時間：當天下午1:30 (科學一館205室)
摘要內容：
Mammalian hearing (including humans) is sensitive to signals as weak as 10e-17 Watt. It was found that "outer hair cells", a special kind of sensory cells located inside the cochlea, are responsible for amplification of acoustic signals. These cells can convert mechanical energy and electrical energy in both directions, thus forming a positive feedback loop that acts as an amplifier for the traveling waves. However, it is still debatable how exactly this electro-mechanical feedback happens at the cell level. My on-going research is to construct dynamic-system models to simulate nonlinear responses of both normal and pathological ears. In this talk, I will first highlight important experimental findings in cochlear mechanics during the past 20 years or so. Then, I will present my work on modeling the micro- and macromechanics of the cochlea, and development of numerical methods thereof, so as to investigate the generation mechanisms for otoacoustic emissions (namely, sounds coming from the ear).
相關檔案：Talk_1050308.doc

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