2 edition of **One dimensional model of cochlear hydromechanics** found in the catalog.

One dimensional model of cochlear hydromechanics

Gail Emily Doran

- 172 Want to read
- 23 Currently reading

Published
**1987**
.

Written in English

- Hearing -- Mathematical models.,
- Cochlea -- Mathematical models.

**Edition Notes**

Statement | by Gail Emily Doran. |

Series | [Master"s theses / University Center at Binghamton, State University of New York -- no. 1232], Master"s theses (State University of New York at Binghamton) -- no. 1232. |

The Physical Object | |
---|---|

Pagination | 65 leaves : |

Number of Pages | 65 |

ID Numbers | |

Open Library | OL22164237M |

We have developed, and are continuing to refine, a detailed three-dimensional computational model based on an accurate cochlear geometry obtained from physical measurements. In the model, the . MODEL Physical Model This physical cochlear model is intended to represent the passive cochlear dynamics. No active elements are included in the structure. The 16 times scaled-up cochlear model has one duct. The cochlear File Size: 1MB.

Index Terms—Auditory models, cochlear implants, simulating the passive cochlear hydromechanics en- It is a one-dimensional macromechan-ical model of the cochlea, in which . An alternative is given for the approach of the two-dimensional problem presented in [12]. Because of the mathematical simplicity of this alternative, several extensions of the model are Cited by:

The presented model is based on electro-mechanical analogy, with a simplified presumption of basilar membrane acting as a one-dimensional system of resonators. In the model, the entire length of cochlea is divided into electrically coupled sections with the resolution of eight sections per critical band (Bark). The hydromechanics . Mathematical models of cochlear mechanics are often used to test theories about cochlear function. One-dimen- sional (transmission line) models helped establish the travel- ing-wave character of basilar membrane motion (Zwislocki, ; Peterson and Bogert, ). Nonlinear models .

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Stapes velocity was computed using a nonlinear, one-dimensional model of cochlear hydromechanics. The model's compliances and damping coefficients were mechanically nonlinear and instantaneously varying in proportion to simulated current injected into the cochlea.

Experimental data showing the spectral content of the pressure waveform near the eardrum during the delivery of sound and current to the cochlea were compared with model. Stapes velocity was computed using a nonlinear, one-dimensional model of cochlear hydromechanics.

The model's compliances and damping coefficients were mechanically nonlinear and instantaneously varying in proportion to simulated current injected into the by: 4.

The current interpretations of data pertaining to cochlear mechanics appear to converge on the points that: 1.

the ratio between pressure across the basilar membrane and membrane velocity is nonlinear, Cited by: Two-dimensional models by Ranke [35] and Zwislocki [47] make similar as- sumptions on the cochlear ﬂuid and the basilar membrane. Ranke’s model uses a deep water approximation, while Zwislocki used the shallow water the- ory in his model.

These models File Size: KB. Hubbard AE () Cochlear emissions in a one-dimensional model of cochlear hydromechanics. Hear Res – Analysis and Synthesis of Cochlear Mechanical Function Using Models. In: Cited by: CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The human cochlea is a remarkable device, able to discern extremely small amplitude sound pressure waves, and discriminate.

Hearing Research, 23 () Eisevier HRR Forward and reverse waves in the one-dimensional model of the cochlea E. de Boer, Chr. Kaernbach1, P. Kig 1 and Th. Schillen1 Academic Medical Centre, Meibergdreef 9, 11 OS A Z Amsterdam, The Netherlands, and 1 Cited by: 9.

Existing mathematical models of cochlear mechanics, whether using one- two- or three-dimensional representations of cochlear geometry, are analysed from this stand- point. All are found to have been. Two-dimensional models by Ranke [35] and Zwislocki [47] make similar assumptions on the cochlear fluid and the basilar membrane.

Ranke’s model uses a deep water approximation, while Zwislocki used the shallow water theory in his model. These models Cited by: A two-dimensional cochlear model is presented, which couples the classical second order partial differential equations of the basilar membrane (BM) with a discrete feed-forward (FF) outer hair.

solutions to a two-dimensional cochlear model, and 3) a one-dimensional model based on a "slowly varyingll approximation. The foundation of this thesis is a simple two-dimensional model of the cochlea.

This model. One general view is that OHC electromotility is a main component of the amplification process, and this has been supported by repeatable in vivo measurements. [1,19] This view has been widely incorporated in active cochlear models.

A basic difference between this and previous investigations is that here we treat an enclosed two-dimensional cavity as opposed to one-dimensional and open two-dimensional models Cited by: Abstract.

The field of mathematical modeling of cochlear mechanics has shifted its focus towards nonlinear and active processes. Arguments for modeling the cochlea as a nonlinear system have Author: Rob J.

Diependaal. Hydromechanics: Theory and Fundamentals 1st Edition Have one to sell. Sell on Amazon Share. eTextbook. $ Hardcover. $ - $ Other Sellers. See all 2 versions Buy new. $ Cited by: 6. Stapes velocity was computed using a nonlinear, one-dimensional model of cochlear hydromechanics.

The model's compliances and damping coefficients were mechanically nonlinear and instantaneously varying in proportion to simulated current injected into the cochlea.

Experimental data showing the spectral content of the pressure waveform near the eardrum during the delivery of sound and current to the cochlea were compared with model Cited by: 4. A technique will be described for solving a two‐dimensional cochlear model proposed by Lesser and Berkley [J.

Fluid Mech. 51, – ()] and developed further by Allen [J. Acoust. Soc. 59, Author: Man Mohan Sondhi. experiments employing a realistic and detailed three-dimensional model of the human cochlear macro-mechanics. Our model1 uses the immersed boundary method2,3 to compute the fluid -structure interactions within the cochlea.

It is a three-dimensional model based on an accurate cochlear geometry. Hearing Research. 22 () Eisevier Auditory nonlinearities: the role of cochlear hydromechanics Jgen Tonndorf TibbettAve., Bronx, NYU.S.A.

Evidence for nonlinearities of hydromechanical origin was first found in cochlear models Cited by: 1. nite half plane. The cochlear duct is represented by a two-dimensional half-open box. Motion of the cochlear ﬂuid creates a force acting on the cochlear partition, modeled by damped oscillators.

The resulting equation is one-dimensional Cited by: 4. However a striking number of commonplace models of our physical environment are based entirely within the dynamics of a one-dimensional continuum.

This introductory text therefore approaches the subject entirely within such a one-dimensional principles of the mathematical modeling of one-dimensional media constitute the book Author: Tony A. J. Roberts.Physical Model of the Human Cochlea Audiol Neurotol ;– duces scaling questions.

The model of Zhou et al. [] is the ﬁ rst with life-sized dimensions for the basilar mem-brane. .2 - The Ear Model - Philosophy The cochlear model to be described here was first sketched by Richard Lyon [Lyon82 and Lyon85] based on work described elsewhere [Schroeder73 and Zweig76].

These papers should be consulted for more information about the theory of the cochlea on which this model .