Articles techniques et présentations

Transition metamaterials constitute a new class of engineered materials which have material properties tailored in such a manner that the refractive index gradually changes from positive to negative. An important question is what happens at the interface of a positive and negative index ... En savoir plus

The proposed dielectric mediums of a hot microbubble interface experience different behaviors due to the electrical mobility of carriers (electron and ion) within their domains. The responses of such mediums towards the initial and average mobility of these carriers can be classified as ... En savoir plus

Mobile robotics is an active research area, which is rapidly advancing thanks to a variety of technological developments in hardware and sensors. The operating environment and the tasks it must carry out are the main factors influencing the design of a climbing robot for industrial ... En savoir plus

Accurate and efficient tracking is important for designing particle accelerators as well as many other applications which use electromagnetic fields to control particles. We have developed a tracking code in MATLAB® Simulink® which uses electric and magnetic fields calculated in COMSOL ... En savoir plus

Magnetic Barkhausen noise (MBN) is an emerging field in non-destructive testing, which utilizes the electromagnetic signals generated by small abrupt changes in magnetic field in a sample undergoing magnetization by an applied external magnetic field. These small ... En savoir plus

This paper presents techniques for modeling annealed proton exchange (APE) and reverse proton exchange (RPE) waveguides in periodically poled lithium niobate for application to optical frequency conversion. A combination of time-dependent diffusion modeling and electromagnetic mode ... En savoir plus

Levitation has found important applications in several areas of engineering, from microgravity to transportation systems. Electrodynamic levitation consists of the interaction of a varying in time magnetic field – provided by an alternating voltage supplying a coil or a moving permanent ... En savoir plus

Dr. Yosuke Mizuyama is a Lead Engineer at Panasonic Boston Laboratory. He has been working on various electronics for Panasonic Corporation in Japan for many years. His research includes incandescent/fluorescent lamp, electrostatic/pzt inkjet, MEMS and BD/DVD/CD optical drive. His ... En savoir plus

FMR spectra of the periodic microstructures (one-dimensional magnonic crystals, 1D MCs) were obtained using COMSOL with use partial differential equation interface. Results of these calculations were successfully compared with an experimental data for Damon-Eshbach (DE) and Backward ... En savoir plus

The accurate estimate of values of electromagnetic parameters are essential to determine the final circuit speeds and functionality for designing of high-performance integrated circuits and integrated circuits packaging. In this paper, the quasi-TEM analyses of symmetrical triple coupled ... En savoir plus