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Simulation and computational heat transfer in the human eye with Dirichlet–Neumann domain decomposition approximation

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International Journal of Modeling, Simulation, and Scientific Computing 2019年第6期10卷 107-128页

In this paper,a bioheat model of temperature distribution in the human eye is studied,the mathematical formulation of this model is described using adequate mathematical *** existence and the uniqueness of the solution of this problem is proven and four algorithms based on finite element method approximation and domain decomposition methods are presented in *** validation of all algorithm is done using a numerical application for an example where the analytical solution is *** properties and parameters reported in the open literature for the human eye are used to approximate numerically the temperature for bioheat model by finite element approximation and nonoverlapping domain decomposition *** obtained results that are verified using the experimental results recorded in the literature revealed a better accuracy by the use of algorithm proposed.

关键词： Nonoverlapping domain decomposition human eye bioheat transfer finite element computation

Monte Carlo simulation of carbon ion radiotherapy for the human eye

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Chinese Physics C 2015年第1期39卷 113-116页

作者：庞成果苏有武王文军罗晓明徐俊奎李武元袁娇姚泽恩 School of Nuclear Science and Technology Lanzhou University Institute of Modern Physics Chinese Academy of Sciences Gansu National Health Inspection The People’s Hospital of Linze

Carbon ion is the mostly common used particle in heavy ion radiotherapy. In this paper, the carbon ion dose in tumor treatment for human eye was calculated with FLUKA code. An 80 MeV/u carbon beam was irradiated into the human eye from two directions. The first was from the lateral-forward direction, which was a typical therapeutic condition. In this case, a maximum dose was deposited in the tumor volume. In the second a beam was irradiated into eyes from the forward direction to simulate a patient gazing directly into treatment beam during therapy, which may cause a certain medical accident. This method can be used for a treatment plan in heavy ion radiotherapy.

关键词： carbon ion beam FLUKA dose distribution human eye

Wave-Front Aberrations of Cornea and Crystalline Lens

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Chinese Physics Letters 2006年第3期23卷 607-609页

作者：王伟五肇圻王雁左彤 Institute of Modern Optics Nankai University Tianjin 300071 Tianjin eye Hospital Refractive Surgery Center Tianjin 300020

The aberrations for anterior corneal surface, posterior corneal surface and complete eyes are measured and calculated. The aberrations for the crystalline lens are obtained by subtracting the aberrations in cornea from that in complete eyes. It is shown that the combination between the crystalline lens and the cornea can be either a compensatory or an additive process. The combination between the anterior and the posterior corneal surfaces on the aberrations is complicated, compensatory or additive. The anterior corneal surface contributes mainly lower-order aberrations （astigmatism） of images, while the posterior corneal surface and the crystalline lens contribute mainly higher-order aberrations.

关键词： human eye SENSOR

A Novel Method to Improve Quality of Drinking Water, Based on the eye’s Biology

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Journal of Water Resource and Protection 2022年第4期14卷 318-333页

作者： Arturo Solís Herrera María del Carmen Arias Esparza Martha Patricia Solís Arias human Photosynthesis^TM Research Centre Aguascalientes México

Water represents a critical nutrient, the absence of which will be lethal within days. Water’s importance for the prevention of nutrition-related noncommunicable diseases has received more attention recently. There are major gaps in knowledge related to the measurement of total fluid intake and hydration status at the population level. It is poorly understood the effects of chronic mild dehydration and fluid consumption on specific health outcomes including obesity. Urolithiasis is the only disorder that has been consistently associated with chronic low daily water intake. Water is an essential nutrient required for life, but until now, it was considered mainly as a universal solvent, which served to prepare the broth of life inside the cells, but the function of water now takes unusual importance with our discovery of the unsuspected ability of the human body to transform the power of light into chemical energy by dissociating the molecule from water, as it happens in plants. The process that we replicated in the laboratory for the first time in 2007, represents a light at the end of the tunnel, in the growing and serious problem of contamination of the mysterious and vital liquid that we call water.

关键词： Drinking Water Hydrogen Oxygen Dissolved Oxygen Pollution human eye