This paper describes the Thermal and structural combined simulation on COMSOL Multiphysics of a Microwave (MW) Fin Taper (FT) Spatial Power Combiner (SPC) Power Amplifier (PA), based on rectangular Waveguide (WG). In the SPC based PA's, the captured power is feeded by microstrip transmission lines (μSTL’s) to Monolithic Microwave Integrated Circuit (MMIC) Solid State Power Amplifier (SSPA’s). T...

Hemorrhagic shock accounts for 30-40 percent of trauma mortality, as bleeding may sometimes be hard to control. Application of short electrical pulses on blood vessels was recently shown to elicit robust vasoconstriction and reduction of blood loss following vascular injury. In this study we present a novel approach for vasoconstriction based on endovascular application of electrical pulses for...

Because of to their versatile energy choice alternatives, immovable elements, and opportunity for effective generation, thermophotovoltaic techniques have a vast range achievable applications. For illustration, these devices could help us offer convenient energy. Nevertheless, first enhance the performance thermo-photovoltaic cell unit along with decrease system costs temperatures. To achieve s...

Induction heating furnaces are employed for vacuum distillation process to recover and consolidate heavy metals after electrorefining operation. Induction heating furnaces of suitable heating rates are required to be developed for this purpose. Hence it is planned to set up a mock-up induction furnace which will simulate the conditions to be realized in actual induction heated vacuum distillati...

An overall objective of energy efficiency in the built environment is to improve building and systems performances in terms of durability, comfort and economics. In order to predict, improve and meet a certain set of performance requirements related to the indoor climate of buildings and the associated energy demand, building energy simulation (BES) tools are indispensable. Due to the rapid dev...

A reaction between chemical species is modeled by a particular reaction pathway, in which one reaction is very fast relative to the other one. The diffusion controlled reactions of these species together with a reaction intermediate are described by a system of three transient reactiondiffusion equations over a two-dimensional spatial domain. In the asymptotic limit of the reaction parameter te...

This paper presents a new design of multi-disks Magnetorheological braking system (MR brake) for automotive application considering the magnetic saturation in both electromagnetic core and MR fluid. A one dimensional analytical model is developed to calculate the braking torque of the proposed system. The geometry of the system, which is created in of elements near the AutoCAD®, is discretized ...

Novel organic transistors utilizing acid/alkaline chemistry have been investigated for their unique device chemistry and customizability. The research presented here shows a multiphysics model for a polymerelectrolyte transistor (PET) simulated in COMSOL Multiphysics. Dynamic transient response and current-voltage characteristics are determined from multiple simulations of an alkaline-acid-alka...

This paper describes the design and the characterization of an 8 slots resonant cavities Magnetron, which undergoes the thermal-structural effects due to the cathode heating. The proposed study involves Thermal Stress (TS), Eigen-frequency (EF) and Particle Tracing (PT) analysis based on a COMSOL Multiphysics (MP) simulation. Magnetrons are well known and more utilized High Power (HP) Radiofreq...