Articles techniques et présentations

Accurate, real-time measurement of arterial oxygen partial pressure (PaO₂) is essential for managing respiratory diseases and critical care conditions. Traditional arterial blood sampling for PaO₂ is invasive, painful, and provides intermittent snapshots rather than continuous ... En savoir plus

INTRODUCTION: The paper illustrates the use of COMSOL for obtaining the solution Ψ(x,y,t) as a solution to the time dependent nonlinear Schrödinger equation (NLSE). COMSOL previously was used to solve the time dependent NLSE in Ref.[1] as applied to quantum mechanics, however this is the ... En savoir plus

Microplastic contamination in sediment samples presents analytical challenges, as microplastic concentrations typically remain below 1% in environmental matrices [1]. Current analytical workflows require cost-effective and rapid pre-separation methods to concentrate microplastic ... En savoir plus

Axial-flux permanent-magnet motors are an important technology in many technical applications, being an alternative to radial-flux motors. Axial-flux motors come up with many advantages in comparison to radial-flux motors such as high-power density, higher torque to weight ratio etc. ... En savoir plus

Impedance spectroscopy is an established sensing methodology used in microfluidic flow cytometry systems to electrically measure cell characteristics. The fluid transport method used in most flow cytometers is continuous flow driven by external syringe or pressure regulated pumps. An on ... En savoir plus

Increased traffic and load on railway infrastructure require regular inspection of track components. Railway track elements such as fasteners, insulation joints, and weld joints are subjected to extreme loading conditions, making their regular inspection essential for ensuring the safety ... En savoir plus

During the last three decades, lithium-ion batteries have become the choice of power source for most portable electronic devices. During a discharge process, intercalated lithium, which is initially stored in the anode, de-intercalates, diffuses out in the electrolyte, reaches the ... En savoir plus

We present a problem-adapted finite element model, which enables the design of a novel type of a highly miniaturized, electrostatic MEMS membrane pump, as well as the investigation and the optimization of its operation. The electro-mechanical actuation scheme constitutes a strongly ... En savoir plus

The current and energy transfer to cathodes of vacuum arcs usually occurs in bright, narrow regions, known as cathode spots. Owing to extreme conditions in these spots, the cathode surface is eroded: electrode material is vaporized, and craters and molten metal jets are formed. The study ... En savoir plus

This case study explains the work we undertook where we modelled an Induction heating system in COMSOL Multiphysics simulation software to correlate the simulation results with actual measurements. The simulated results were cross checked with several different measurement scenarios, ... En savoir plus