We present the design of tunable capacitor based on MEMS simulated using COMSOL Multiphysics, which is an emerging engineering software environment used for modelling and simulation of any physical based structure. This model includes an electrostatic simulation for a given distance component in various microelectromechanical systems (MEMS) for electromagnetic fields in the radio frequency rang...

This work reported the design and the development of a physical simulation model of AlGaN/GaN High Electron Mobility Transistor (HEMTs). Our main aim was to ascertain the influence of technological parameters (the gate length, the AlGaN layer thickness, and doping concentration (Nd)) on the drain-source current Ids [Vds, Vgs], the Ids-Vgs characteristics and the transconductance gm by using a c...

This paper deals with the modeling of a Hansen’s disease (HD) affected nerve using FEM based simulation tool. There exists an exponential delay in the propagation of action potential for a diseased nerve as compared to a healthy one. To include this exponential delay, the FitzHugh Nagumo equation has been modified and modeled using COMSOL Multiphysics 4.0a. Time domain and frequency domain anal...

We report on a metamolecule antenna, based on a fish-scale design but augmented with two split-ring resonators (SRRs) placed within the fish-scale loops. The properties of the antenna resonator, with and without additional SRRs, were examined using finite element method simulations (COMSOL Multiphysics). The simulation findings were subsequently confirmed experimentally, using a vector network ...

Packed beds are important in the chemical industries in separations and as catalytic reactors. The standard approach to modeling the complex particle/tube arrangement is to employ an effective medium approach with one-dimensional flow and lumped transport parameters. Simplification of the flow and estimation of the transport quantities is usually by experiment and empiricism. Computational flui...

This paper presents the concept and design of a system that embeds piezoelectric sensors to measure voltage mechanical load applied it. COMSOL Multiphysics, finite element simulation tool, was used analyze data find possible fingerprint changes. The sensors’ readings were affected by surface structure with different magnitudes speeds. analyzed show effect position mass on indicates possibility ...

Introduction: Bone tissue has a limited ability for regeneration; critically sized defects cannot self-heal and require medical intervention. Bone tissue engineering (TE) circumvents this issue by growing replacement bone tissue from the patient's own cells inside scaffolds. TE scaffolds are porous constructs that act as a support structure during bone regeneration and helps cells attach and pr...