D. Krapohl, S. Loeffler, A. Moser, and U.G.Hofmann
Institute for Signalprocessing, University of Luebeck, Lübeck, Germany
Institute for Neurology, University of Luebeck, Lübeck, Germany
Department of Information Technology and Media, Mid Sweden University, Sundsvall, Sweden
Deep Brain Stimulation (DBS) has been established as an effective treatment for Parkinson's disease and other movement disorders. The stimulation is currently administered using tetrode-macroelectrodes that target the Subthalamic Nucleus (STN). This often leads to side effects which bias the surrounding areas, e.g. the speech centre. Targeting a specific brain region can better be achieved with ...
F. Lugli and F. Zerbetto
Department of Chemistry “G. Ciamician”, Università di Bologna, Bologna, Italy
A small particle or a nano-sized object placed in a liquid is subject to random collisions with solvent molecules. The resulting erratic movement of the object is known as Brownian motion, which, in nature, cannot be used to any practical advantage both in natural systems (such as biomolecular motors) or by artificial devices. If energy is supplied by external source or by chemical reactions, ...
El-Khatib, N.1, Huc, N.2, Goldberg, Y.3, Cedex Martiel, J.L.1
1 TIMC Laboratory, UMR CNRS 5525, Faculty of Medicine, La Tronche
2 COMSOL, Grenoble
3 INSERM EMI 01-08, Grenoble University Hospital, Grenoble
We present a simplified model of biological cells including a first layer, corresponding to the membrane and the actin cortex and a second one, representing the cell cytoplasm. The membraneactin ensemble is governed by the Navier equations while the cytoplasm is assimilated to a viscous fluid, described by the Navier-Stokes system. At the inner boundary, between the cortex and the cytoplasm, ...
U.S. Geological Survey, Golden, Colorado
Estimates of the probability of earthquakes in Alaska are improved through a finite element, viscoelastic analysis of the evolution of stress in the Earth’s crust and upper mantle. A solution to the problem is addressed through multiple FEMLAB applications, two for each subdomain, where each subdomain is a fault bounded block. The first application models the elastic response and sets up the ...
Berthier, J., Chatelain, F.
Polymerase chain reaction is the most usual way to amplify DNA strands for detection and biorecognition. However efficient biorecognition requires to perform many different PCRs at the same time. We present here a new concept of simultaneous PCRs in capillary tubes and more specifically the dimensioning of such a microsystem. The concept consists in performing different PCRs in annular rings ...
Heinrichs, J.1, Gerdes, A.2, 3
1 Hochschule Karlsruhe - Technik und Wirtschaft, Institut für Angewandte Forschung
2 Hochschule Karlsruhe - Technik und Wirtschaft , Fakultät für Mechatronik und Naturwissenschaften
3 Forschungszentrum Karlsruhe, Institut für Technische Chemie, Bereich für Wasser- und Geotechnologie
Aus technischen, ökologischen und ökonomischen Gründen nimmt die Dauerhaftigkeit von Stahlbetonbauwerken in der heutigen Zeit einen immer größeren Stellenwert ein. Schadensursachen an solchen Bauwerken werden oft durch chemisch-physikalische Prozesse, wie z.B. den kapillaren Transport betonaggressiver Wässer in die Betonrandzone, hervorgerufen. Um nun die Dauerhaftigkeit bzw. die ...
H.A. Lecuyer, F.H. Bertrand, P.A. Tanguy, J.P. Mmbaga, and R.E. Hayes
 Ecole Polytechnique , Montreal
 University of Alberta, Edmonton
This presentation is concerned with the modelling of deformable non-Newtonian Flow using COMSOL Multiphysics. This general modelling approach has more concrete applications such as paper coating in a metering size press, meniscus location by PIDS to mention a few.
Simulo Technologies, Lagos, Nigeria
A qualitative flow analysis by numerical simulation of a fermentation process in a sorghum factory is presented. The simulations were done with the Numerical modeling software, COMSOL Multiphysics. Several flow arrangements were considered in the study and as a result, optimized flow configurations were evolved.
H. Ishimori, and K. Endo
National Institute for Environmental Studies, Tsukuba, Ibaraki, Japan
To consider effective counter measures against ground water contaminated with dense non-aqueous phase liquids (DNAPLs) such as chlorinated solvents, it is first important to understand the mechanism of their migration in heterogeneous aquifer. In addition, numerical analysis models to simulate such a complex migration in heterogeneous aquifer are required. The displacement pressure, which is ...
An Efficient Finite Element Analysis on an RF Structure Used to Evaluate the Effect of Microwave Radiation on Uveal Melanoma Cells
A. Dulipovici, D. Roman, I. Stiharu, and V. Nerguizian
École de technologie supérieure, Montreal, Quebec, Canada
Concordia University, Montreal, Quebec, Canada
The use of Microwave/RF energy on cancer cells is explored for tumor ablation using medium power level ranging between a few Watts to about 50 Watts. In this research, low power levels, less than 100 mWatt, are used to evaluate the effect of this energy on Uveal melanoma cells by proliferation tests. The COMSOL simulation of the RF structure used to evaluate the radiation energy on ...