O. Richter, F. Suhling, and S. Moenickes
Technische Universität Braunschweig, Germany
The spatial dynamics of the invasion of new species and genetic dispersal is studied under the presumption of rising temperature by using a coherent approach of coupled partial differential equations of the reaction diffusion type. The nonlinear reaction terms model the population dynamics, genetic exchange and competition. Temperature reaction norms of reproduction rates are conferred by a two ...
O. Nicotra, and A. La Magna
CNR-IMM Sezione di Catania, Catania, Italy
One of the major applications for dielectrophoresis is the selective trapping and fractionation in lab-on-a-chip devices. Nevertheless, many-particle effects due to high concentrations of biological material around electrodes can cause a rapid decrease of trapping efficiency in dielectrophoretic devices. In this contribution we present a new approach based on a drift-diffusion dynamics to study ...
A. Chanda, A.R. Choudhury, G. Ray, K. Dasgupta, and D. Nag
Jadavpur University, Kolkata, West Bengal, India
Atherosclerosis in arteries is caused by the formation of stenosis : fatty depositions, on the artery wall. In current medicine, the practice is to observe the maximum percentage occlusion at any arbitrary cross-section and diagnose the patient on that basis, which might not always present the real picture due to non-uniformity of the stenosis thickness. The present work attempts to simulate the ...
Y. Liang, Z. Shi, S. Sritharan, and H. Wan
Central State University, Wilberforce, OH, USA
Wright State University, Dayton, OH, USA
This paper proposes a novel data-mining framework to simulate the spread of epidemic diseases using persistent surveillance data. The framework is formulated by merging the persistent surveillance data about epidemics, geographic information and the dynamics of disease into a heat transfer model according to the theory of statistical mechanics . In the implementation of this framework, geographic ...
H.C. Wong, K.N. Cho, and W.C. Tang
Department of Biomedical Engineering, University of California, Irvine, California, USA
Atherosclerosis causes the deposition of plaque on the inner walls of arteries, which leads to restricted blood flow. Using the balloon angioplasty procedure, stents can be inserted and expanded in the atherosclerotic artery. We used COMSOL Multiphysics Structural Mechanics, Solid Stress-Strain module to perform static, large deformation analyses. Our results show that lower stent stresses were ...
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 ...
A. K. Niemann1,5, S. A. Kock1, J. V. Nygaard2, E-T. Fründ3, S. E. Petersen4, and J. M. Hasenkam5
1 MR-center, Aarhus University Hospital Skejby, Aarhus, Denmark
2Interdisciplinary Nanoscience Center, Faculty of Science, University of Aarhus, Skejby, Denmark
3Dept. of Radiology, Aarhus University Hospital, "Aalborg Sygehus Syd", Aalborg, Denmark
4Dept. of Urology, Aarhus University Hospital Skejby, Aarhus, Denmark
5Dept. of Cardio-Thoracic and Vascular Surgery, and Clinical Institute, Aarhus University Hospital Skejby, Aarhus, Denmark
Using Computational Fluid Dynamics, different geometries of side-to-side a-v fistulas for hemodialysis access are evaluated. We created five CAD-models of fistulas with the length of the anastomosis varying from 5 to 15 mm. The five models were analyzed and evaluated using the k-ε turbulence application mode in COMSOL Multiphysics to determine if an optimal length of anastomosis exists. ...
Y. Song, and C. Wang
Florida International University, Miami, FL, USA
Enzymatic biofuel cells (EBFCs) are miniature, implantable power sources, which use enzymes as catalysts to perform redox reaction with biological fuels such as glucose. In this study using COMSOL Multiphysics, we use an EBFC chip, having three dimensional, highly dense micro-electrode arrays, fabricated by C-MEMS micro-fabrication techniques. Glucose oxidase (GOx) is immobilized on anodes for ...
M.M Zarandi, A. Bonakdar, and I. Stiharu
McGill University, Montreal, QC, Canada
Concordia University, Montreal, QC, Canada
In this paper, a Finite Element (FE) and scaled-up experimental modal analysis are employed to estimate the natural frequencies of individual spherical and ellipsoidal cells. It is apparent that the mechanical properties of the living cells and particularly the natural frequencies might be related to the health condition of cells, and therefore a comprehensive analysis is carried out to determine ...
V. Di Virgilio, A. Coll, S. Bermejo, and L. Castañer
Universitat Politecnica de Catalunya, Barcelona, Spain
In this work we want to explore some techniques, microfluidic and electrospray-ionization based, suitable for dynamic microarrays\' fabrication. The fabrication techniques are based on manipulation and self-assembly of selective coated micro and nanobeads. The simulation will include electro-osmotic flow, species transport, and electrostatics.