Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Finite Element Modelling Of The Mechanics Of The Coupling Between The Incus And Stapes In The Middle Ear
Download Finite Element Modelling Of The Mechanics Of The Coupling Between The Incus And Stapes In The Middle Ear full books in PDF, epub, and Kindle. Read online Finite Element Modelling Of The Mechanics Of The Coupling Between The Incus And Stapes In The Middle Ear ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
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 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.
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.
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 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 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 Oxford Handbook of Auditory Science: The Ear by : Paul Fuchs
Download or read book Oxford Handbook of Auditory Science: The Ear written by Paul Fuchs and published by OUP Oxford. This book was released on 2010-01-14 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first volume in The Oxford Handbook of Auditory Science, The Ear serves both as an introduction and as a reference work for anyone interested in how 'hearing' happens. It will be a valuable resource, for anyone interested in the ongoing challenge, and adventure, of understanding the mysteries of the ear.
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 Proceedings of the International Symposium on Recent Developments in Auditory Mechanics by : Hiroshi Wada
Download or read book Proceedings of the International Symposium on Recent Developments in Auditory Mechanics written by Hiroshi Wada and published by World Scientific. This book was released on 2000 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symposium held in 1999 near Sendai in Japan.
Book Synopsis Product Performance Evaluation using CAD/CAE by : Kuang-Hua Chang
Download or read book Product Performance Evaluation using CAD/CAE written by Kuang-Hua Chang and published by Academic Press. This book was released on 2013-02-03 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is one book of a four-part series, which aims to integrate discussion of modern engineering design principles, advanced design tools, and industrial design practices throughout the design process. Through this series, the reader will: Understand basic design principles and modern engineering design paradigms. Understand CAD/CAE/CAM tools available for various design related tasks. Understand how to put an integrated system together to conduct product design using the paradigms and tools. Understand industrial practices in employing virtual engineering design and tools for product development. Provides a comprehensive and thorough coverage on essential elements for product performance evaluation using the virtual engineering paradigms Covers CAD/CAE in Structural Analysis using FEM, Motion Analysis of Mechanical Systems, Fatigue and Fracture Analysis Each chapter includes both analytical methods and computer-aided design methods, reflecting the use of modern computational tools in engineering design and practice A case study and tutorial example at the end of each chapter provide hands-on practice in implementing off-the-shelf computer design tools Provides two projects at the end of the book showing the use of Pro/ENGINEER® and SolidWorks ® to implement concepts discussed in the book
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 A Finite Element Model of the Human Head for Simulation of Bone-conducted Sound by : You Chang
Download or read book A Finite Element Model of the Human Head for Simulation of Bone-conducted Sound written by You Chang and published by Linköping University Electronic Press. This book was released on 2018-04-03 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bone conduction is usually understood as the hearing sensation based on the vibrations of the skull bone and surrounding tissues. The fact that vibration of the skull bones can result in a sound percept has been known for a long time. However, it is difficult to give a general definition of BC sound. Normally, BC sound is described as the sound energy transmitted through the body (comprising the solid and fluid parts) then the outer, middle and inner ear are involved and finally produce a perception of sound. Even if BC sound perception has been studied for more than a century, the whole pattern of BC sound transmission is still not complete. There are limitations for experimental investigation of BC sound, such as the complexity of experimental manipulations and individual differences between subjects resulting in difficult to interpret outcomes. One way to overcome some of those issues is the use of a simulation model for BC sound. However, until now, the published models are unable to provide a holistic response of BC sound in the human. Therefore, the primary aim of this thesis is to develop a finite element model that could simulate BC sound transmission in the human. Based on cryosectional images of a female, the LiUHead was developed as a FE model of the human head with the structure and material properties of real human. Most the structures and tissues which could contribute to the BC transmission were included in the LiUHead. The simulation results of the LiUHead agreed with experimental data obtained in both cadaver heads and live humans. After the development and validation of the LiUHead, the model was used to investigate BC sound. Since BC sound is transmitted in and between the tissues, the power transmission of BC sound was investigated in the LiUHead in the frequency domain. When the stimulation was applied on the surface of the skull at the mastoid position, the results of the simulations show that, as the name suggest, the skull bone dominants the BC sound transmission. The soft tissues and cartilages are as the second most important media of the BC sound while the skull interior is the least important for the BC transmission. Moreover, according to the power flux in the skull, the BC vibrations are mainly concentrated at the skull base. Other important transmission pathways are located at the occipital bone at the posterior side of the head, but the power transmitted over the face, forehead and vertex is minor. There is power interaction between the skull bone and skull interior near the stimulation position but the transmission of sound power through the brain seem to be minimal. Since the power or energy is difficult to measure in an experimental setting, this investigation gave unique knowledge about BC sound transmission in the head and the interaction between the tissues. As a common application for BC sound, bone-conduction devices are used to stimulate the hearing and is a method for hearing loss rehabilitation. Nowadays many different kinds of BCDs are available. However, most studies failed to compare the different types of BCDs in the same conditions as well as between several BCDs as it is not possible to compare several BCDs within the same subject due to the implantation required for several BCDs. The model gives a unique opportunity to evaluate various BCDs in the same head. Eight different BCDs, including four kinds of skin-drive BCDs, three kinds of direct-drive BCDs, and one in-the-mouth device, were applied to the LiUHead and the simulation results were evaluated. The results proved that the direct-drive BCDs and the in-the-mouth device gave similar vibration responses at the cochlea. At low frequencies, the skin-drive BCDs had similar or even better cochlear responses than the direct-drive BCDs. However, the direct-drive BCDs gave stable responses at mid-frequencies and gave higher responses than the skin-drive BCDs at high frequencies. These results are beneficial evaluating and for designing and improving current BCDs. The ultimate goal of this thesis is to provide a computational model for BC sound that can be used for evaluation of BC sound transmission. This was accomplished by the LiUHead that gave results comparable to experimental data and enabled investigations that cannot easily be conducted in experiments.
Book Synopsis An Approach to Finite-element Modelling of the Middle Ear by : Susan M. Funnell
Download or read book An Approach to Finite-element Modelling of the Middle Ear written by Susan M. Funnell and published by . This book was released on 1989 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Finite-element Modelling of the Human Middle Ear by : Chadia Mikhael
Download or read book Finite-element Modelling of the Human Middle Ear written by Chadia Mikhael and published by . This book was released on 2005 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The aim of our work was to build an accurate human middle-ear finite-element model that is based on accurate geometry and a priori material-property estimates." --
Download or read book e-Design written by Kuang-Hua Chang and published by Academic Press. This book was released on 2016-02-23 with total page 1228 pages. Available in PDF, EPUB and Kindle. Book excerpt: e-Design: Computer-Aided Engineering Design, Revised First Edition is the first book to integrate a discussion of computer design tools throughout the design process. Through the use of this book, the reader will understand basic design principles and all-digital design paradigms, the CAD/CAE/CAM tools available for various design related tasks, how to put an integrated system together to conduct All-Digital Design (ADD), industrial practices in employing ADD, and tools for product development. Comprehensive coverage of essential elements for understanding and practicing the e-Design paradigm in support of product design, including design method and process, and computer based tools and technology Part I: Product Design Modeling discusses virtual mockup of the product created in the CAD environment, including not only solid modeling and assembly theories, but also the critical design parameterization that converts the product solid model into parametric representation, enabling the search for better design alternatives Part II: Product Performance Evaluation focuses on applying CAE technologies and software tools to support evaluation of product performance, including structural analysis, fatigue and fracture, rigid body kinematics and dynamics, and failure probability prediction and reliability analysis Part III: Product Manufacturing and Cost Estimating introduces CAM technology to support manufacturing simulations and process planning, sheet forming simulation, RP technology and computer numerical control (CNC) machining for fast product prototyping, as well as manufacturing cost estimate that can be incorporated into product cost calculations Part IV: Design Theory and Methods discusses modern decision-making theory and the application of the theory to engineering design, introduces the mainstream design optimization methods for both single and multi-objectives problems through both batch and interactive design modes, and provides a brief discussion on sensitivity analysis, which is essential for designs using gradient-based approaches Tutorial lessons and case studies are offered for readers to gain hands-on experiences in practicing e-Design paradigm using two suites of engineering software: Pro/ENGINEER-based, including Pro/MECHANICA Structure, Pro/ENGINEER Mechanism Design, and Pro/MFG; and SolidWorks-based, including SolidWorks Simulation, SolidWorks Motion, and CAMWorks. Available on the companion website http://booksite.elsevier.com/9780123820389
Book Synopsis Glasscock-Shambaugh Surgery of the Ear by : Lloyd B. Minor
Download or read book Glasscock-Shambaugh Surgery of the Ear written by Lloyd B. Minor and published by PMPH-USA. This book was released on 2010 with total page 828 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updated with new color graphics and new video CD of surgical and diagnostic procedures, this 6th edition retains its heritage as the classic textbook in otology and neurotology. Coverage includes scientific foundations and fundamentals, clinical evaluation and rehabilitation and sections on the external ear, inner ear, tympanomastoid compartment, internal auditory canal/Cerebellopontine angle/petrous apex and skull-based surgery. This edition integrates all the latest research in genetics, biotechnical advancements in laser and image-guided systems and clinical innovations and techniques of the past 7 years. Woven throughout is an intriguing historical overview of those who pioneered the early surgical interventions from 1950 to the present and the influences on current clinical practice. Editors of this edition, Julianna Gulya, Lloyd Minor and Dennis Poe are internationally renowned figures in the field of otology/neurotology. This 6th edition enormously benefits from their editorial direction and wealth of knowledge and clinical expertise. SOTE 6 remains the classic text and reference of choice for otolaryngologists and neurosurgeons and an essential addition to the libraries of experienced surgeons, trainees, or those preparing for board exams. New Chapters written by well-recognized leaders that include the latest research and clinical studies include: Tumor Biology Stereotactic Radiosurgery and Radiotherapy Ossicular Reconstruction Management of Cerebrospinal Fluid Leaks Surgical Treatment of Peripheral Vestibular Disorders Hearing Aids Tinnitus Rehabilitation Vestibular Rehabilitation Updated Temporal Bone Dissection Guide
Book Synopsis Finite-element Modelling of the Gerbil Middle Ear by : Nidal Elkhouri
Download or read book Finite-element Modelling of the Gerbil Middle Ear written by Nidal Elkhouri and published by . This book was released on 2005 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Hearing loss is the third leading chronic disability after arthritis and hypertension, and the most frequent birth defect. Non-invasive diagnoses and middle-ear prostheses are often unsatisfactory, partly because of a lack of understanding of middle-ear mechanics. The focus of this thesis is to develop a 3-D finite-element model to quantify the mechanics of the gerbil middle ear. An MRM dataset with a voxel size of 45 &mgr;m, and an x-ray micro-CT dataset with a voxel size of 5 um, supplemented by histological images, are the basis for 3-D reconstruction and finite-element mesh generation. The eardrum model is based on moire shape measurements. The material properties of all the structures in the model are based on a priori estimates from the literature." --
