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Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.

Consultez les proceedings de la Conference COMSOL 2024

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3-D Design, Electro-Thermal Simulation and Geometrical Optimization of Spiral Platinum Micro-Heaters for Low Power Gas Sensing Applications Using COMSOL 4.1

V. Bansal, D. Kumar, B. Prasad, and A. Gujjar
Electronic Science Department

In this paper a thermal electric finite element method (FEM) analysis was used to investigate the thermal properties of individual electrically driven platinum micro-heaters. The geometric optimization for the micro-heater was performed by simulating a wide range of possible geometries ... En savoir plus

Design, Simulation, and Fabrication of Thermal Angular Accelerometers

H. Alrowais [1],
[1] School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, GA, USA

This abstract introduces a sensor design for detecting angular acceleration in a single plane using thermal convection. The working principal of the device is based on probing temperature profile changes along a micro-torus caused by angular acceleration. By properly choosing the ... En savoir plus

Simulations of Scanning Electrochemical Microscopy Experiments in Pure Negative and Positive Feedback Mode with Ring Microelectrodes

J. Mauzeroll[1], M. Mayoral[1], and D. Fabre[1]
[1]Department of Chemistry, Université du Québec à Montréal, Montreal, Quebec, Canada

Scanning electrochemical microscopy (SECM) is a powerful tool recently developed for studying structures and processes in micrometer and submicrometer sized systems. It can probe electron, ion, and molecule transfers, and other reactions at solid-liquid, and liquid-liquid, interfaces . ... En savoir plus

Finite Element Analysis of a Fiber Bragg Grating Accelerometer for Performance Optimization

N. Basumallick[1], A. Ghosh[1], P. Biswas[1], K. Dasgupta[1], S. Bandyopadhyay[1]
[1]Fiber Optics Laboratory, Central Glass and Ceramic Research Institute, Kolkata, West Bengal, India

Sensitivity of a cantilever-mass based fiber Bragg grating (FBG) accelerometer can efficiently be tailored by altering the distance between the axis of the FBG sensor to the neutral axis of the cantilever. To accomplish that in general, a backing patch is used to mount the FBG on the ... En savoir plus

Collecting Photons from an STM Microscope

H. Cabrera [1], B. Zengin [2],
[1] Laboratory for Solid State Physics, ETH Zürich, Zürich, Switzerland
[2] Department of Physics, Istanbul Technical University, Turkey

We modify a Tunnel Effect Microscope (STM) with the purpose of analyzing the local production of photons in the electrostatic junction during the image taking process. The novelty of this project compared to previous studies is that it is intended to be developed from the beginning as ... En savoir plus

Cryogenic Magnetic Shield Modeling & Verification

H.J. van Weers[1], C. Bruineman[2], G. Muckus[3]
[1]SRON, Netherlands Institute for Space Research, Utrecht, The Netherlands
[2]Scientec, Utrecht, The Netherlands
[3]University of Utrecht, Utrecht, The Netherlands

In ESA's Cosmic Vision program, the Japanese SPICA satellite is a mission of opportunity in the M-class, with the SAFARI instrument being one of the next generation space-borne astronomy instruments being developed to take advantage of SPICA’s cryogenically cooled 3-m class primary ... En savoir plus

Dynamic Characterization and Mechanical Simulation of Cantilevers for Electromechanical Vibration Energy Harvesting

N. Alcheick[1], H. Nesser[1], H. Debeda[1], C. Ayela[1], I. Dufour [1]
[1]Univ. Bordeaux, IMS Lab, Pessac, France

Energy harvesting from ambient vibrations has become an interesting topic for powering wireless sensor networks. Resonant microdevices based on MEMS have become of central importance at low frequency. The power produced at resonance is at least one order of magnitude larger than off ... En savoir plus

Magnetic Fields for Cell Cultures Suspended in a Perturbed Diamagnetic Medium

P. Ferrada [1], G. Serrano [2], C. M. Ostojic [2], A. Maureira [2], M. Zapata [2], E. Fuentealba [1],
[1] Centro de Desarrollo Energético Antofagasta, Universidad de Antofagasta, Antofagasta, Chile
[2] Laboratorio de Biotecnología Algal y Sustentabilidad, Universidad de Antofagasta, Antofagasta, Chile

The effect of static magnetic fields (SMF) on living matter such cell cultures and living organisms has been a promising research field. Efforts have been given in the understanding of the underlying mechanisms and interaction between the field and the biological system with its ... En savoir plus

Multiphysics Simulations in Automotive Product Development: Concept and Beyond

Matthias Richwin joined KOSTAL, a worldwide automotive first-tier supplier, in 2003 where he started working on the design of optical sensor systems. In 2007 he took over responsibility for simulation methods in the series product development and since then leads the simulation ... En savoir plus

Dissolution Modeling of Uniform Aqueous Droplets in Two-Phase Flow in a Microfluidic Device

S. Onel [1, 2, 3, 4], U. Okumus [1], M. Toner [2, 3, 4],
[1] Department of Chemical Engineering, Hacettepe University, Ankara, Turkey
[2] Department of Surgery, Center for Engineering in Medicine, Massachusetts General Hospital, Boston, MA, USA
[3] Harvard Medical School, Boston, MA, USA
[4] Shriners Hospitals for Children - Boston, Boston, MA, USA

Safe preservation of mammalian cells for long term is essential for medical and pharmaceutical industries. Cryopreservation by conventional slow freezing and by vitrification below freezing temperatures are the most effective biopreservation methods compared to in vitro culture at ... En savoir plus

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