Articles techniques et présentations

Electrohydrodynamic (EHD) drying is a cutting-edge, non-thermal drying technique that leverages high electric field to enhance water removal from moist materials via corona wind generation. EHD drying encompasses two fundamental phenomena: corona wind generation and the drying process ... En savoir plus

The ceramic metal halide lamps belong to the most efficient high intensity light sources of these days. Presently it is the nitrogen contamination that causes the most significant problems during ignition. If this material gets into the lamp's interior in high concentrations, it will ... En savoir plus

The purpose of this paper is to present a numerical modeling of plasma phenomena in beryllium emissions using COMSOL Multiphysics software. The Beryllium films were deposited on mirror polished fine grain graphite substrates using the Thermionic Vacuum Arc (TVA) technology available at ... En savoir plus

Fixed nitrogen is used in many forms ranging from nitric acid to hydrogen cyanide and is used as such for industrial applications. The reactions to produce these products are highly endothermic and favored by high-temperature processing. The most basic route of chemically fixing nitrogen ... En savoir plus

Large-area, light-weight electromagnetic protection (EP) structures are needed to protect sensitive microwave sensors and communications systems from high-power microwave (HPM) and electromagnetic pulse (EMP) threats. This paper presents the use of COMSOL Multiphysics® for ... En savoir plus

A lot of techniques are developed to treat soils polluted by hydrocarbons pollutants: incineration, thermal treatment, extraction, chemical oxidation, bioremediation… Some of these techniques are very energy consuming (incineration, thermal treatment…) and often need a subsequent ... En savoir plus

Arc welding is a widely used process in heavy industry for the assembly of metallic components. To ensure high-quality welds, it is essential to understand both the welding process and the complex interactions within the melt pool. Numerical simulation is employed as a predictive tool to ... En savoir plus

Chipmakers widely use the plasma-enhanced chemical vapour deposition (PECVD) technique for depositing thin dielectric or conducting films on wafers. The primary objective for a deposition process is to have a good flow and species uniformity on the wafer. Typically, a carefully designed ... En savoir plus

同轴磁齿轮是将一个或一组永磁体或电磁体安置在圆形转轴外侧，通过扭矩-速度的调整实现外部非接触式动能控制的机构，用于工业自动化控制和可再生能源等应用中，和机械齿轮不同，磁齿轮工作时无摩擦，所以能量损耗小。本文以二维旋转动网格模型为基础，在径向方向分别安置单个和多个永磁体。探究不同安置数量对外部空间环境产生的电磁感应规律。 En savoir plus

System for in-situ control of the ion angular distribution function (IADF) in plasma reactor is modeled. Typical IADF depends on the pressure, bias and excitation frequency. It is formed due to a difference in the physical properties of the plasma and sheath domains. The IADF is modified ... En savoir plus