Consultez les proceedings de la Conference COMSOL 2024
The quantitative value of electrical bio impedance in tissue structures is sensitive to changes in ionic concentration, frequency and dispersion but lacks specificity. It is difficult to a create a physical measurement set up of clinical value capable of quantifying the contribution of ... En savoir plus
In this work, an analysis is presented for a 3-dimensional RF MEMS coil using the COMSOL AC/DC module in conjunction with the CAD import module. The realization of being able to produce such 3-dimensional RF coils allows for less surface area to be needed for similar inductor performance ... En savoir plus
This work develops a methodology based on the application of finite element method in the frequency domain: the purpose is to evaluate electromagnetic parameters of a pot-core inductor. The knowledge of the electromagnetic parameter is very important for several reasons, for example it ... En savoir plus
Mathematical modeling and simulation of electrical fields through the human skin provide important insights into its electrophysiological state. As the human skin is a complex multi-layer entity of different compositions, we have chosen to select representative material properties to ... En savoir plus
One way to extract piezoelectric material data from measurements is to utilize vibrational eigenmodes of block-shaped test specimens (Rupitsch 2015). Within a simulation-aided approach this results in optimizing the values of the material data parameters to fit the experimental result, ... En savoir plus
For medical diagnostic purposes there is an increasing need for non-(or minimal) invasive techniques to measure all kinds of parameters that can provide insight in the functioning of cells, organs or organ systems. Currently, Impedance Cardiography (ICG) is used for measurements of the ... En savoir plus
Common mode chokes are good EMI filters in electronic power systems [1]. For such devices, values for their impedance are critical to their performances as noise filters. In this study, a two-step finite element approach is employed to study the impedance variations of a ferrite-core ... En savoir plus
The RF matching network is a critical component positioned between the RF generator and the plasma chamber, designed to transform the plasma impedance to a value suitable for the RF generator. Because the matching network design must be highly customized based on the specific conditions ... En savoir plus
Due to the increase on the academic and industrial interest on thermal energy storage (TES) systems, the EU Horizon project HYSTORE is developing 4 different solutions. In these solutions, the use of thermochemical materials (TCM) and phase-change materials (PCM) are proposed. We ... En savoir plus
An implementation of the Electrical Impedance Tomography (EIT) forward problem in a generalist FEM package is presented. It fulfils the complete electrode model boundary conditions, combining current injection with contact impedance on a single boundary. Our implementation is benchmarked ... En savoir plus