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Imaging, physiology, and biomechanic...

Stanford University.

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Imaging, physiology, and biomechanics of the malleus-incus complex.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Imaging, physiology, and biomechanics of the malleus-incus complex./
作者:	Sim, Jae Hoon.
面頁冊數:	152 p.
附註:	Adviser: Charles R. Steele.
Contained By:	Dissertation Abstracts International68-06B.
標題:	Biophysics, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoeng/servlet/advanced?query=3267632
ISBN:	9780549063629

Imaging, physiology, and biomechanics of the malleus-incus complex.
Sim, Jae Hoon.

Imaging, physiology, and biomechanics of the malleus-incus complex. - 152 p.

Adviser: Charles R. Steele.

Thesis (Ph.D.)--Stanford University, 2007.

The goal of this study is to establish the biomechanical model of the malleus-incus complex (MIC) based on specific anatomical features of individual ears. Characterization of the MIC requires morphological parameters for the bones and soft tissue attachments and their associated material properties. The isolated MIC was characterized by combining three-dimensional dynamical measurements and high-resolution micro-CT based morphology within a biomechanical model.

ISBN: 9780549063629Subjects--Topical Terms:

1019105
Biophysics, General.

Imaging, physiology, and biomechanics of the malleus-incus complex.
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100 1 $a Sim, Jae Hoon. $3 1029170
245 1 0 $a Imaging, physiology, and biomechanics of the malleus-incus complex.
300 $a 152 p.
500 $a Adviser: Charles R. Steele.
500 $a Source: Dissertation Abstracts International, Volume: 68-06, Section: B, page: 4097.
502 $a Thesis (Ph.D.)--Stanford University, 2007.
520 $a The goal of this study is to establish the biomechanical model of the malleus-incus complex (MIC) based on specific anatomical features of individual ears. Characterization of the MIC requires morphological parameters for the bones and soft tissue attachments and their associated material properties. The isolated MIC was characterized by combining three-dimensional dynamical measurements and high-resolution micro-CT based morphology within a biomechanical model.
520 $a The non-destructive imaging method of high resolution micro-CT was used to characterize mass distribution of each bone and three-dimensional features of soft tissues of the MIC. The inertia values soft tissue morphometry showed significant individual differences across ear samples. Such individual differences in the anatomical features of the MIC require accurate determination of anatomical information for each specimen.
520 $a Three-dimensional motions of the isolated MIC driven by a magnet-coil motor were obtained from velocity measurements using the Laser Doppler Vibrometer (LDV). The electromagnetic forces between the magnet attached to the umbo and the coil around the tympanic annulus were calculated with their relative position obtained from the micro-CT scan. The velocity measurements were done at several stages by removing suspensory attachments and the incus step by step. Differences in motion of the malleus and the incus were observed indicating existence of relative motions at the incudo-malleal joint (IMJ).
520 $a The three-dimensional motions were used to estimate parameter values in the anatomically based structural model. In the model, ligaments were modeled as translational and rotational springs with corresponding damping components, and the IMJ was approximated by plane flow with elastic boundary walls. Most suspensory attachments had rotational and shear stiffnesses as well as a longitudinal stiffnesses and showed behaviors of material damping rather than velocity-proportional damping. In the IMJ, the viscosity of the fluid was more than one hundred times as large as the viscosity of pure water. Such a large viscosity provides velocity-proportional damping and also contributes to the real part of the stiffness combined with elastic wall boundary conditions.
590 $a School code: 0212.
650 4 $a Biophysics, General. $3 1019105
650 4 $a Engineering, Mechanical. $3 783786
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790 1 0 $a Steele, Charles R., $e advisor
791 $a Ph.D.
792 $a 2007
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