M. K. Gobbert, X. Huang, S. Khuvis, S. Askarian, B. E. Peercy
University of Maryland - Baltimore County, Baltimore, MD, USA
This paper presents information on techniques needed in COMSOL Multiphysics® to enable computational studies of coupled systems of PDEs for time-dependent non-linear problems. Furthermore, we demonstrate how to use data files as input for initial conditions. To illustrate the techniques, we consider a system of two time-dependent non-linear PDEs from mathematical biology that couples an ...
B. Granula, K. Porzig, H. Toepfer, M. Gacanovic
University of Banja Luka, Banja Luka, Bosnia-Herzegovina
Technische Universität Ilmenau, Ilmenau, Germany
The prediction of the exact location and intensity of the electric field induced in the human brain during Transcranial magnetic stimulation is a nontrivial computational task. Numerical simulations of the procedure can be used to acquire first approximations in a safe and controlled environment. In order to make this approach more accessible, it is necessary to reduce computation time as much ...
E. Lacatus , G. C. Alecu , A. Tudor ,
 Politehnica University of Bucharest, București, Romania
At the forefront of a new generation of sensors graphene and graphene composite materials are intensively studied for medical and biosensing applications. The outstanding electrical, mechanical and quantum properties of graphene make them a promising material solution to overlap the existing gap between biological and non-biological systems into a continuum like-viscoelastic integrated model. ...
A Practical Method to Model Complex Three-Dimensional Geometries with Non-Uniform Material Properties Using Image-based Design and COMSOL Multiphysics®
J. Cepeda, S. Birla, J. Subbiah, H. Thippareddi
Department of Food Science & Technology, University of Nebraska, Lincoln, NE, USA
Department of Biological Systems Engineering, University of Nebraska, Lincoln, NE, USA
Geometries with heterogeneous material properties are typically defined as a set of multiple parts, each part representing a different material. However, assembling or defining the individual parts of complex geometries can be difficult. A practical method based on image-based mesh generation, a custom algorithm for labeling materials, and interpolation functions of COMSOL Multiphysics® can be ...
V. Valente, A. Demosthenous, and R. Bayford
Department of Electronic & Electrical Engineering, University College London, London, United Kingdom
Department of Natural Sciences, Middlesex University, London, United Kingdom
Deep Brain Stimulation (DBS) is a therapeutic tool used for a number of neurological disorders including chronic pain, incontinence and movement disorders, such as Parkinson’s disease. DBS consists of the low-frequency stimulation of an area of the brain, known as basal ganglia. The stimulation is provided by clinical implant, consisting of a pulse generator and an electrode lead ...
M. Gardemin, M. Lüpke, V. Cordes, and C. Staszyk
Institute for General Radiology and Medical Physics, University of Veterinary Medicine Hannover, Hannover, Germany
Institute of Anatomy, University of Veterinary Medicine Hannover, Hannover, Germany
Like humans, horses can develop a variety of dental problems. Different equine diseases occur in different areas of the equine cheek tooth or its surrounding tissues. With a realistic simulation of a chewing cycle it can be possible to link mechanical phenomena such as high stress in distinct areas to commonly occurring diseases. According to different angles of the acting chewing force, ...
A. Grünbaum, S. Petersen, H.W. Pau, and U. van Rienen
IEF funded by DFG Research Training Group 1505/1 Welisa, University of Rostock, Rostock, Germany
Otolaryngology “Otto Körner”, University of Rostock, Rostock, Germany
Modeling of 2-5 μm thin membranes into a cochlea with a width of 2 cm is computationally. The paper is focused on two approximative methods used to overcome this problem and in addition a simple model challenging of a plate capacitor with a thin membrane of different thickness in-between is presented. The results of simulations with both thin layer approximation methods are compared with ...
P. Pattnaik, S. K. Kamilla , Debi Prasad Das
MEMS Design Center, Institute of Technical Education & Research (ITER),Siksha ‘O’ Anushandhan University, Bhubaneswar-751030, Odisha,India
Process Engineering and Instrumentation Cell,Institute of Minerals and Materials Technology (IMMT),Bhubaneswar, Odisha,India
To prevent further complications in diabetes, proper management of blood glucose levels is essential. By using ultrasonic transceivers (both transmit and receive) the glucose level of human blood can be determined. By using this ultrasonic technique miniaturized sensors for non-invasive monitoring blood glucose levels. In this paper Barium Titanate (BT) thin film was used as a transmitter and ...
S. Ali, and M. McShane
Department of Biomedical Engineering, Texas A&M University-College Station, Texas, USA
With the rising predominance of diabetes, successful management of blood glucose levels is increasingly important. Key efforts have focused on the development of optical microscale glucose sensing systems based on the encapsulation of glucose oxidase within microspheres coated with polyelectrolyte multilayer nanofilms. A two-substrate mathematical model of microscale optical glucose sensors in ...
C. Gavrila, A. Ghiaus, and I. Gruia
Technical University of Civil Engineering Bucharest, Faculty of Building Services, Bucharest, Romania
University of Bucharest, Faculty of Physics, Bucharest, Romania
A dynamic mathematical model, based on physical and transport properties and mass and energy balances, was developed for the simulation of unsteady convective drying of agricultural products (fruits and vegetables) in static bed conditions. The model utilizes water sorption isotherm equations and the change in solid density due to the shrinkage phenomenon. The aim of this article is to describe ...