S. Curet, M. Mazen Hamoud-Agha
GEPEA, UMR 6144, CNRS, ONIRIS, Université de Nantes, Nantes, France
In this study, COMSOL®4.2a is used to model a microwave heating process in a TE10 rectangular waveguide. The sample consists of a small cylindrical Ca-alginate gel (D = 8 mm, H = 10 mm) inoculated with bacteria Escherichia Coli K12. The sample is placed along the microwave propagation direction into the waveguide. Maxwell’s equations and heat transfer are coupled to a microbial inactivation ...
P. Keutelian, A. Krishnamurthy, G. Chen, B. Ulmen, G.H. Miley
University of Illinois at Urbana-Champaign, Champaign, IL, USA
HIIPER is an experimental space propulsion device using a helicon and an IEC as a plasma generation and acceleration stage, respectively. There is an experiment in progress, but for true rapid iteration and to model the performance of the engine, COMSOL is a strong candidate for fulfilling these roles and continuing with the project until its production phase. The simulation is built with very ...
S. Hoyer, M. Bottig, F. Zekiri, G. Götzl, A.K. Brüstle, G. Schubert, A. Nador
Geological survey of Austria, Vienna, Austria
Geological Institute of Hungary, Budapest, Hungary
Temperature measurements of the subsurface are available due to hydrocarbon exploration in the project area, where the average drilling depth is about 2-4 km and the deepest well reaches about 8.5 km. Since the data is heavily uneven distributed, standard interpolation techniques did not deliver satisfying results. This is why numerical modeling was applied to assess the thermal regime of the ...
DepQuest, Dalmine, Italy
This work focuses on the application of multiphysics finite element simulations in the manufacturing and application of high power ultrasonic machines. Industries providing big power ultrasonic solutions as in cleaning, welding, sonochemistry and cutting fields, already apply the finite element simulation approach, in the structural mechanics flavor, in the design and optimization of ultrasonic ...
P. Shukla, K. K. Singh, P. K. Gupta , S. K. Ghosh
Bhabha Atomic Research Centre, Trombay, Mumbai, India
Flow electrolysers find several applications in industry. They are used for production of metals and synthesis of chemicals, gases. Cleaning and preservation of old artifacts, electrolytic refining of metals, electrolytic winning of metals, alkaline water electrolysis, anodization, electrometallurgy, electroplating, electrolytic etching of metal surfaces are other industrial applications of flow ...
Electrical Response and Thermal Damage Assessment of Cutaneous and Subcutaneous Tissues to Noninvasive Radiofrequency Heating: A Computational Modeling Study
A. González-Suárez[1,2], J. N. Jimenez-Lozano, W. Franco
Wellman Center for Photomedicine, Massachusetts General Hospital & Harvard Medical School, Boston, MA, USA
Biomedical Synergy, Electronic Engineering Department, Universitat Politècnica de València, Valencia, Spain
ZELTIQ Aesthetics, Inc., Pleasanton, CA, USA
Electromagnetic radiofrequency (RF) sources are widely used to heat up cutaneous and subcutaneous tissues. The subcutaneous morphology of tissue consists of a fine, collagenous and fibrous septa network enveloping clusters of adipocyte cells; however, it is commonly regarded as a homogeneous fat layer in computational models. In the present study the objective is to assess the effect of the ...
J. S. Crompton, H. Singh, K. Koppenhoefer
AltaSim Technologies, LLC, Columbus, OH, USA
In response to continued miniaturization and increased multi-functionality of electronic circuits, the number of integrated circuit (IC) packages on the circuit board continues to increase. As a consequence the operating power density increases and significant increases in the operating temperature of devices result. To maintain operation and long term performance device temperature must be ...
R. P. Ruby, G. Kulkarni, U. Kanade
Noumenon Multiphysics Pvt. Ltd., Pune, Maharashtra, India
Seals leak primarily at the interface between seal and cavity (Figure 1). At a microscopic level, the interface between the seal and cavity consists of regions of contact between the two elements, and voids. The voids are connected to each other, forming a microscopic system of caverns through which the leaking fluid flows (Figure 2). In two previous papers, we investigated the microgeometry of ...
Determination of the Fundamental Resonant Modes of a Polysilicon H-Beam Using COMSOL Multiphysics® Software
T. Thomas, M. Sundaram, R. Bejam
Birla Institute of Technology and Science, Pilani - Pilani Campus, Rajasthan, India
A Polysilicon H-beam is a micro-machined structure consisting of two primary members connected by a third member of much lower width and much greater aspect ratio. This structure exhibits interesting vibration behavior at specific frequencies which are known as resonant modes. A ‘mode’ may be described as a specific physical shape that the vibrating object assumes at peak oscillation amplitude ...
D. Gasperino 
 Intellectual Ventures Laboratory, Bellevue, WA, USA
INTRODUCTION: Point of care diagnostics aimed at low-resource settings need to be relatively simple, robust and low-cost. The most commonly-used diagnostic platform in these settings is the lateral flow assay (LFA). LFAs are paper-based immunoassays designed to perform on-strip binding with analytes in patient samples in order to generate a visual signal if disease-specific antigen is ...