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Finite Element Analysis Of Middle Ear Mechanics
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Book Synopsis Finite Element Analysis of Middle Ear Mechanics by : James Peter Tuck-Lee
Download or read book Finite Element Analysis of Middle Ear Mechanics written by James Peter Tuck-Lee and published by . This book was released on 2007 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results for the middle ear model, using this multifrequency algorithm, are presented for intact and modified middle ear anatomies. These modifications serve to demonstrate the utility of the computational approach in understanding the relationships between the morphological structure of the middle ear and its functionality.
Book Synopsis A Finite-Element Model for Evaluation of Middle Ear Mechanics by :
Download or read book A Finite-Element Model for Evaluation of Middle Ear Mechanics written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computer model of the middle ear, ossicular chain and eardrum was established using the finite-element method. A preliminary comparison of the model with measurements made in human-cadaver ears shows that the model is in approximate agreement with the form of the middle ear function. The computer model will be used for implant design.
Book Synopsis Middle Ear Mechanics In Research And Otology - Proceedings Of The 3rd Symposium by : Kiyofumi Gyo
Download or read book Middle Ear Mechanics In Research And Otology - Proceedings Of The 3rd Symposium written by Kiyofumi Gyo and published by World Scientific. This book was released on 2004-07-26 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to facilitate the exchange of ideas between otosurgeons and engineers on common topics such as middle ear function, tympanoplasty, implantable hearing devices and ear prostheses. Due to recent advances in technology, gene-therapy and tissue-engineering procedures will also be important issues in the treatment of middle ear disease.
Book Synopsis Finite Element Simulation of External Ear Sound Fields for the Optimization of Eardrum-related Measurements by : Sebastian Schmidt
Download or read book Finite Element Simulation of External Ear Sound Fields for the Optimization of Eardrum-related Measurements written by Sebastian Schmidt and published by Logos Verlag Berlin GmbH. This book was released on 2009-08-31 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sound pressure pT at the human eardrum has essential advantages as reference signal in audiological and psychoacoustical experiments. Unfortunately, precise pressure measurements very close to the tympanic membrane are difficult. In practice, the microphone has to be positioned at a certain distance from the eardrum. The measured pressure then has to be transformed to the eardrum. As a "classical" approach for the estimation of the necessary transfer function, an acoustical network model of the ear canal is developed from geometrical data of the canal (cross-sectional area function) which is in turn determined from measurements of its acoustical input impedance. Such methods, however, do not provide robust results. In this thesis, the concept of one-dimensional models of the ear canal is examined to find the origin of these errors. For this purpose, the sound field at the human external ear was analyzed using finite element models. Inside the canal, irregular three-dimensional structures occur that cannot be modelled accurately using classical one-dimensional network concepts. Upon these findings, an accurate, efficient and highly feasible method for the estimation of pT was developed. Equal-loudness level contours with reference to the eardrum pressure that were measured as pilot application of the new method are presented.
Book Synopsis Mechanics of the Middle Ear by : Kilian Gladiné
Download or read book Mechanics of the Middle Ear written by Kilian Gladiné and published by . This book was released on 2019 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Middle Ear Mechanics In Research And Otology - Proceedings Of The 4th International Symposium by : Alexander Huber
Download or read book Middle Ear Mechanics In Research And Otology - Proceedings Of The 4th International Symposium written by Alexander Huber and published by World Scientific. This book was released on 2007-07-09 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the summer of 2006, the 5th International Symposium on Middle Ear Mechanics in Research and Otology was held at the University of Zurich, Switzerland. More than 250 participants from 33 countries in all five continents came together to present their most current research results, exchange their knowledge in practical applications, to discuss open questions and discover new unsolved problems.This book includes representative, peer-reviewed articles of the lectures and papers presented during the symposium, and thereby gives an overview of the ongoing research and current knowledge in the function and mechanics of the normal, diseased and reconstructed middle ear. It covers basic research, engineering and clinical aspects of evaluation, diagnosis and surgery of the middle ear as well as implantable hearing devices in a very broad and interdisciplinary way. Following the tradition of the organizers of the previous conferences to collect the contributions of the symposium, this volume further initialized and promotes many fruitful discussions on middle ear mechanics with different points of view.
Book Synopsis A Finite Element Analysis of the Middle Ear by : Gary Graydon Genge
Download or read book A Finite Element Analysis of the Middle Ear written by Gary Graydon Genge and published by . This book was released on 1985 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite-element Analysis of Inner Ear Hair Bundles by : Robert Keith Duncan
Download or read book Finite-element Analysis of Inner Ear Hair Bundles written by Robert Keith Duncan and published by . This book was released on 1993 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite-element Modelling of the Mechanics of the Coupling Between the Incus and Stapes in the Middle Ear by : Tiong Heng Siah
Download or read book Finite-element Modelling of the Mechanics of the Coupling Between the Incus and Stapes in the Middle Ear written by Tiong Heng Siah and published by . This book was released on 2002 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A three-dimensional finite-element model of the pedicle and the incudostapedial joint was created, where the dimensions are based on examination of histological sections of a cat middle ear. Careful attention has been paid to the mesh generation of the model, especially for the regions of interest, such as the pedicle, that are very small relative to the overall structure. The issue of the compromise between the mesh resolution and the computational time will be discussed as well. Ranges of plausible values for the stiffnesses of the joint, joint capsule and pedicle were tested and the resulting displacements were examined for various loading conditions." --
Book Synopsis Finite-element Modelling of the Human Middle Ear Based on X-ray Micro-computed Tomography and Doppler Optical Coherence Tomography in the Same Ear by : Xuan Wang
Download or read book Finite-element Modelling of the Human Middle Ear Based on X-ray Micro-computed Tomography and Doppler Optical Coherence Tomography in the Same Ear written by Xuan Wang and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The middle ear plays a critical role in transferring sound into the inner ear. The vibration patterns of the tympanic membrane (TM) and ossicles have been investigated by many groups but, particularly at high frequencies, are still not well understood. Computational modelling of the middle ear offers a pathway toward a better understanding of the mechanical function of these structures. The tuning and validation of such models require accurate anatomical and mechanical experimental data, but such data usually come from populations of ears and little is known about how differences in individual anatomy and material properties affect middle-ear function. In this study we created a finite-element (FE) numerical model of a middle ear and validated it against vibration measurements from the same ear.A real-time phase-sensitive Doppler optical coherence tomography (OCT) system was used to measure the vibrations of both the TM and the ossicles of a human temporal bone at a stimulation frequency of 500 Hz. The measured vibration pattern of the TM showed a maximal displacement in the posterior region and a smaller maximum in the anterior region. The experimental data also showed smaller displacements on the ossicles, while the cochlear promontory appeared immobile as expected.A 3-D X-ray micro-computed tomography (microCT) scan was acquired for the same ear. A FE model of the middle ear was built using a combination of locally developed and other free and open-source software. The geometry was based on semi-automatic segmentation of the microCT images, and material properties were based on previous studies. A sensitivity analysis was performed to analyze the relative importance of the various parameters. The Doppler OCT images, masked by B-mode OCT images to reduce noise, were also segmented and the resulting 3-D model was transformed to Cartesian coordinates and aligned with the microCT-based model.Two FE solvers (Code_Aster and SAP IV) were used as part of the verification process. The simulated vibration patterns from the different solvers were compared with the measured Doppler-mode OCT velocity data and with data from the literature. The simulation results match well with the shape of the measured vibration pattern of the TM at 500 Hz. Co-registration of OCT and microCT for individual ears is a viable approach for building and validating FE models. If extended to clinical CT scans, this process could lead to patient-specific models and improved diagnosis of pathological changes in the middle ear. The process of creating FE models for the middle ear would need to be streamlined for clinical applications." --
Book Synopsis Finite Element Analysis of the Normal and Surgically Reconstructed Human Middle Ear by : Peter Ferris
Download or read book Finite Element Analysis of the Normal and Surgically Reconstructed Human Middle Ear written by Peter Ferris and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Function and Mechanics of Normal, Diseased and Reconstructed Middle Ears by : John J. Rosowski
Download or read book The Function and Mechanics of Normal, Diseased and Reconstructed Middle Ears written by John J. Rosowski and published by Kugler Publications. This book was released on 2000 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive and Clinical Anatomy of the Middle Ear by : Salah Mansour
Download or read book Comprehensive and Clinical Anatomy of the Middle Ear written by Salah Mansour and published by Springer. This book was released on 2019-07-04 with total page 237 pages. Available in PDF, EPUB and Kindle. Book excerpt: This fully revised and expanded second edition provides a comprehensive, most up-to-date and extensive work on middle ear anatomy. Related biomechanics are explained to enhance the understanding of functional anatomy. Clinical situations are correlated to the anatomical impacts of middle ear diseases. Advanced knowledge of embryology helps to correlate anatomical status in relation to developmental anomalies. Endoscopy succeeds to demonstrate anatomical details along with their impact on surgery of the middle ear. The inclusion of carefully selected CT scans assist in the reading of normal anatomy comparing with pathological features. This work enables those undergoing surgical training to hone their surgical skills. Comprehensive and Clinical Anatomy of the Middle Ear 2nd edition is aimed at otolaryngology residents, otology and neurotology fellows, researchers, teachers and practitioners.
Book Synopsis A Study of Middle Ear Biomechanics Using the Finite Element Method by : Daniel John Kelly
Download or read book A Study of Middle Ear Biomechanics Using the Finite Element Method written by Daniel John Kelly and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Theoretical Study Into the Effect of Load on the Tympanic Membrane and Middle Ear Using Finite Element Analysis by :
Download or read book A Theoretical Study Into the Effect of Load on the Tympanic Membrane and Middle Ear Using Finite Element Analysis written by and published by . This book was released on 1993 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Recent Developments In Auditory Mechanics: Proceedings Of The International Symposium by : K Ikeda
Download or read book Recent Developments In Auditory Mechanics: Proceedings Of The International Symposium written by K Ikeda and published by World Scientific. This book was released on 2000-07-12 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: The articles in this volume are the results of discussions among biophysicists, neurobiologists and mathematicians with research interests in auditory mechanics and signal processing. The topics covered include: mechanics and models of hearing organs; auditory periphery and its models; middle ear; traveling wave and cochlear amplifier; emissions; outer hair cell; electromotility; central auditory processing; auditory nerve responses; and hearing in non-mammals.
Download or read book The Middle Ear written by Sunil Puria and published by Springer Science & Business Media. This book was released on 2013-03-19 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The middle ear plays a vital role in the sense and sensitivity of hearing. Of the various characteristics that distinguish mammals from other vertebrates, several pertain specifically to the middle-ear system, such as the presence of three middle-ear bones and the four-layer composite structure of the tympanic membrane. The Middle Ear attempts to elucidate the role this system plays in sound transmission, as viewed from both scientific and clinical perspectives.
