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4 results on '"Sih-Sian Lee"'

1. A new flat interface nerve electrode design scheme based on finite element method, genetic algorithm and computational neuroscience method

Author

Sih-Sian Lee and Charles T. M. Choi

Subjects
Nervous system, Computational neuroscience, Computer science, Interface (computing), Motor nerve, Neurophysiology, Topology, Finite element method, Electronic, Optical and Magnetic Materials, medicine.anatomical_structure, Electrode, Genetic algorithm, medicine, Electrical and Electronic Engineering, Focus (optics)
Abstract

A study of motor nerve stimulation by flat interface nerve electrodes (FINE) using a new cuff electrode design based on finite element method, genetic algorithm and computational neuroscience method is presented. The purpose of this study is to obtain optimized parameters of electrode model for higher motor nerve stimulation efficiency. In this paper, the application for the focus stimulation on target fascicle is presented

Published
2006

2. A novel approach to compute the impedance matrix of a cochlear implant system incorporating an electrode-tissue interface based on finite element method

Author

Wei-Dian Lai, Charles T. M. Choi, and Sih-Sian Lee

Subjects
Materials science, Quantitative Biology::Tissues and Organs, Acoustics, Diagonal, Impedance matching, Impedance parameters, Finite element method, Electronic, Optical and Magnetic Materials, law.invention, Capacitor, law, Electric field, Electrode array, Electrical and Electronic Engineering, Electrical impedance
Abstract

This paper proposes to use a new and realistic finite element model of a single turn human cochlea and cochlear implant electrode array with electrode-tissue interface to model the electric field imaging technique, which creates an impedance matrix. Due to discrepancy in the Warburg capacitor in the active and nonactive electrode contacts and electric power lost along the cochlea, the diagonal terms of the impedance matrix is larger than the off diagonal terms, which represent the impedance values of the nonactive electrode contacts. The impedance matrix from electric field imaging measurements is compared with the simulation results

Published
2006

3. A New Flat Interface Nerve Electrode Design Scheme Based on Finite Element Method, Genetic Algorithm and Computational Neuroscience Method.

Author

Choi, Charles T. M. and Sih-Sian Lee

Subjects
*EFFERENT pathways, *CENTRAL nervous system, *FINITE element method, *NEUROSCIENCES, *NEURAL stimulation, *ELECTRIC resistors
Abstract

A study of motor nerve stimulation by flat interface nerve electrodes (FINE) using a new cuff electrode design based on finite element method, genetic algorithm and computational neuroscience method is presented. The purpose of this study is to obtain optimized parameters of electrode model for higher motor nerve stimulation efficiency. In this paper, the application for the focus stimulation on target fascicle is presented. [ABSTRACT FROM AUTHOR]

Published
2006
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4. A Novel Approach to Compute the Impedance Matrix of a Cochlear Implant System Incorporating an Electrode-Tissue Interface Based on Finite Element Method.

Author

Choi, Charles T. M., Wei-Dian Lai, and Sih-Sian Lee

Subjects
COCHLEAR implants, ARTIFICIAL implants, FINITE element method, ELECTRIC stimulation, BIOMEDICAL materials, MEDICAL imaging systems
Abstract

This paper proposes to use a new and realistic finite element model of a single turn human cochlea and cochlear implant electrode array with electrode-tissue interface to model the electric field imaging technique, which creates an impedance matrix. Due to discrepancy in the Warburg capacitor in the active and nonactive electrode contacts and electric power lost along the cochlea, the diagonal terms of the impedance matrix is larger than the off diagonal terms, which represent the impedance values of the nonactive electrode contacts. The impedance matrix from electric field imaging measurements is compared with the simulation results. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

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