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Publications (3)0 Total impact

  • [show abstract] [hide abstract]
    ABSTRACT: In this paper we propose a new method based on finite element method for solving radiation boundary condition of heat equation inside the human eye and other applications. Using this method, we can solve heat equation inside human eye without need to model radiation boundary condition to a robin boundary condition. Using finite element method we can obtain a nonlinear equation, and finally we use nonlinear algorithm to solve it. The human eye is modeled as a composition of several homogeneous regions. The Ritz method in the finite element method is used for solving heat differential equation. Applying the boundary conditions, the heat radiation condition and the robin condition on the cornea surface of the eye and on the outer part of sclera are used, respectively. Simulation results of solving nonlinear boundary condition show the accuracy of the proposed method.
    Conference proceedings: ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Conference 08/2011; 2011:166-9.
  • Amin Dehghani, Aboozar Moradi, Reza Jafari
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    ABSTRACT: This paper presents a modeling and simulation of transient heat transfer process in the human eye with a tumour. A three dimensional (3D) finite element method is applied to obtain the solution of a boundary value problem for a transient heat transfer model in the human eye. The human eye is modeled as a composition of several homogeneous regions. The Ritz method in the finite element method is used for solving heat differential equation. Applying the boundary conditions, the heat radiation condition and the Robin condition on the cornea surface of the eye and on the outer part of sclera are used, respectively. Simulation results of heat transfer for three dimensional model of human eye with a tumour show the effect of tumour on transient heat distribution.
    01/2011;
  • A. Dehghani, A. Moradi, R. Jafari
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    ABSTRACT: In this paper we present a numerical three dimensional (3D) simulation of transient heat transfer process in the human eye. A finite element method is applied to obtain the solution of a boundary value problem for a 3D transient heat transfer model in the human eye. The human eye is modeled as a composition of several homogeneous regions. The Ritz method in the finite element method is used for solving heat differential equation. Applying the boundary conditions, the heat radiation condition and the Robin condition on the cornea surface of the eye and on the outer part of sclera are used, respectively. Simulation results of two and three dimensional models are compared.
    Optomechatronic Technologies (ISOT), 2010 International Symposium on; 01/2010