Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

Drying Model of Two-Particle System Solution Considering Capillary Pressure

Kanji INOKO[1]

[1]Toyota Technical Development Corporation, Toyota, Aichi, Japan

The performance of Li-ion battery is known to be dependent on the thickness direction distribution of binder volume fraction. The distribution is determined by drying process of electrode ink, which contains large active material and small binder. With the aim of predicting binder segregation, we studied new drying model of two-particle system solution by considering capillary pressure.

Investigation on MEMS Based Thermal Sensor for Cancer Detection

A. V. Lakshmi[1], K. C. Devi[1]
[1]PSG College of Technology, Coimbatore, Tamil Nadu, India

This paper presents the design and simulation of a thermal sensor using COMSOL Multiphysics® software for the detection of low body temperature syndrome which can allow the early detection of cancer. This sensor is made of an alloy consisting of two materials with different coefficients of thermal expansion. The main objective of this work is to investigate the structural change in the sensor ...

The Effect of Space Charge due to the Auto-Ionization of Neutral, Hydrogenic States in Point-Contact Germanium Detectors at MilliKelvin Temperatures - new

D. Faiez[1], N. Mirabolfathi[1], B. Sadoulet[1], K. M. Sundqvist[2]
[1]Department of Physics, University of California - Berkeley, Berkeley, CA, USA
[2]Department of Electrical & Computer Engineering, Texas A&M University, College Station, TX, USA

A class of semiconducting detectors, operated at temperature T~50mK, has direct application to the search for dark matter particle, when are able to simultaneously measure both the ionization and phonons created by particle interactions. We explore the effect of space charge accumulation in a germanium p-type point contact detector which arises due to the auto-ionization of hydrogenic ...

Doping Dependent I-V Characteristics of Single Silicon Nanowire

S. Mishra [1], S. K. Saxena [1], P. Yogi [1], P. R Sagdeo [1], R. Kumar [1],
[1] Indian Institute of Technology Indore, Indore, Madhya Pradesh, India

In the present work, we have studied the electron transport properties of single silicon nanowire using Semiconductor Module of COMSOLMultiphysics software. We construct a MSM (metal-semiconductor-metal) model where metal is selected as copper and semiconductor is taken as silicon. Silicon is doped with n-type impurity by increasing doping concentration. Further, the Schottky diodes formed at ...

Towards a Microscopic Model for Species Transport in Lithium-Sulphur Cells

Geraint Minton [1], Rajlakshmi Purkayastha [1], Laura O’Neill [1], Sylwia Walus [1], Mark Wild [1], Monica Marinescu [2], Teng Zhang [2], Gregory Offer [2],
[1] Oxis Energy Ltd, Abingdon, Oxfordshire, UK
[2] Mechanical Engineering Department, Imperial College, London, UK

Lithium-sulphur (Li-S) batteries have the potential to surpass the energy storage capability of Li-ion batteries due to their high theoretical gravimetric energy density of 2700 Wh/kg. However, the processes which drive the system behaviour are much more complex than those in a Li-ion cell, meaning that controlling them to realise energy densities much above 350 Wh/kg is challenging. In a Li ...

A Simulation App for Determining How Best to Cool a Beer Bottle

J. Richter[1], T. Hilbig[1], C. Schröder[1]
[1]University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany

The scope of this project was the creation of a short and comprehensive tutorial for the use of COMSOL® Application Builder for students at the University of Applied Sciences Bielefeld. The tutorial is based on the everyday life “problem” how to cool a beer bottle most efficiently. It shows how to use the most important features and tools (e.g. creating buttons, input fields, methods, generating ...

Modeling and Simulation of Mechanically Coupled MEMS Resonators Using COMSOL Multiphysics®

J. Wiswell [1], M. Guvench [1],
[1] University of Southern Maine, Gorham, ME, USA

Introduction: In this project, COMSOL Multiphysics® and SolidWorks® are employed to model and simulate a mechanically coupled MEMS resonator with varying masses. These resonators consist of three main components: springs on each end to allow the structure to move, a shuttle mass for loading the structure, and electrode fingers attached to the shuttle mass to electrically detect resonance. The ...

Simulation of Molecular Transport of an Electroporated Cell using COMSOL Multiphysics®

J. V. D. Jayasooriya [1], D. Nawarathna [1],
[1] Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, USA

Electroporation is a highly efficient cellular transfection method which is used to inject molecules into living cells. The electroporation involves creating temporary pores in cell membranes using an electrical field. It has been successfully utilized in medicine and biology for producing knockout mice, gene therapy, and cell-based therapy. As electroporation is an easy and rapid method, it is ...

Silicon-Organic-Hybrid Independent Simultaneous Dual-Polarization Modulator: Device Theory and Design

Y. D'Mello [1], M. Hui [1], J. Skoric [1], M. Haines [1], A. Kirk [1], M. Andrews [1], D. Plant [1],
[1] McGill University, Montréal, QC, Canada

The Complementary Metal-Oxide-Semiconductor (CMOS) technology is a gateway to fabricating low cost electronic and photonic components to date. The Silicon-based nanophotonics platform leverages CMOS technology to fuel the effort to provide increasingly high-speed and high-bandwidth devices at low costs in response to global demands in telecommunication infrastructure. The current industry ...

Modeling of snRNP Motion in the Nucleoplasm

M. Blaziková[1], J. Malínský[2], D. Stanek[3], and P. Herman[1]
[1]Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
[2]Institute of Experimental Medicine, Prague, Czech Republic
[3]Institute of Molecular Genetics, Prague, Czech Republic

Small nuclear ribonucleoprotein particles (snRNPs) are essential supramolecular complexes involved in pre-mRNA splicing, the process of post-transcriptional RNA modifications. The particles undergo complex assembly steps inside the cell nucleus in a highly dynamic compartment called the Cajal body. We have previously shown that the free diffusion model does not fully describe the snRNP motion ...