کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10435103 | 910840 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic properties of human round window membrane in auditory frequencies running head: Dynamic properties of round window membrane
ترجمه فارسی عنوان
خصوصیات پویا غشاء شیشه ای انسان در فرکانس های شنیداری در حال اجرا: خواص دینامیکی غشای شیشه ای دور
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کلمات کلیدی
غشای شیشه ای گرد لیزر داپلر ارتعاشی، مدول مجتمع، مدل عنصر محدود
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی پزشکی
چکیده انگلیسی
Round window is one of the two openings into cochlea from the middle ear. Mechanical properties of round window membrane (RWM) affect cochlear fluid motion and play an important role in the transmission of sound into cochlea. However, no measurement of mechanical properties of RWM has been reported because of the complication of its location and small size. This paper reports the first investigation on dynamic properties of human RWM using acoustic stimulation and laser Doppler vibrometry measurement. The experiments on RWM specimens were subsequently simulated in finite element (FE) model and an inverse-problem solving method was used to determine the complex modulus in frequency-domain and the relaxation modulus in time-domain. The results show that the average storage modulus of human RWM changes from 2.32 to 3.83Â MPa and the average loss modulus from 0.085 to 0.925Â MPa over frequencies of 200-8000Â Hz. The effects of specimen geometry and experimental condition on complex modulus measurements were discussed through FE modeling analysis. Dynamic properties of RWM reported in this paper provide important data for the study of middle ear and cochlear mechanics.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Medical Engineering & Physics - Volume 35, Issue 3, March 2013, Pages 310-318
Journal: Medical Engineering & Physics - Volume 35, Issue 3, March 2013, Pages 310-318
نویسندگان
Xiangming Zhang, Rong Z. Gan,