Magnetic Heating of Iron Oxide Nanoparticles with Alternating Magnetic Field for Hyperthermia Applications - new
N. M. Sundaram, M. Sneha, R. S. Vishnu, M. Alagappan
PSG College of Technology Coimbatore, Tamil Nadu, India
The current therapies available to treat cancer patients are surgical operation and chemo therapy. The drawbacks are the side effects caused by these therapies. Hyperthermia is a treatment technique based on deactivation of cancer cells by raising the temperature in the range of 43 ºC and 48 ºC and has gained attention as an alternative therapy for cancer treatment. Iron oxide nanoparticles ...
Modelling the Coupled Heat and Mass Transfer during Fires in Stored Biomass, Coal and Recycling Deposits
Federal Institute for Materials Research and Testing Division II.2, Berlin, Germany
It is known that in big storages of bulk materials the danger of the self-ignition is relevant (long time storages). The Consequences of uncontrolled fires include considerable CO2 emission and economical and human losses to mention a few. The understanding of this phenomena is therefore of great importance.A numerical model can be of great help in understanding such complex phenomena. In this ...
A. Jeremic, and T. Gadkari
McMaster Univerisity, Hamilton, ON, Canada
In this paper, we develop an inverse finite-element model for estimating elasticity of the arterial wall. We model the blood flow using COMSOL’s Structural Mechanics module, and use the resulting nonlinear functions corresponding to the Navier-Stokes equations in the presence of elastic (immersed) boundary in formulating the cost function.We derive the corresponding least-squares and maximum ...
O. Falou1, J. C. Kumaradas2, and M. C. Kolios1,2
1Dept. of Electrical and Computer Engineering, Ryerson University, Toronto, ON, Canada
2Dept. of Physics, Ryerson University, Toronto, ON, Canada
In this work, backscatter from an elastic sphere was used to validate the computational model against analytical solutions (Faran theory).Agreements between analytical and finite element solutions were found in the scattered far-field over a range of frequencies of interest (10 - 70 MHz). Oscillations of the elastic sphere at various resonance frequencies (peaks in the power spectrum) were also ...
M. Zell, D. Cronin, D. Morgan, F. Marra, and J. Lyng
School of Agriculture, Food Science and Veterinary Medicine, Agriculture and Food Science Centre, College of Life Sciences, UCD Dublin, Ireland
Dipartimento di Ingegneria Chimica e Alimentare, Università degli Studi di Salerno, Italy
Pasteurization of solid food undergoing ohmic heating has been analyzed using COMSOL Multiphysics on the basis of a previously validated multiphysics model. The simulation of pasteurization by ohmic heating involves simultaneous solution electrical potential within the food, heat transfer, and the kinetics transport of death of microorganisms. In the model, thermo-physical and electrical ...
Electrical Stimulation of Brain using a realistic 3D Human Head Model: Improvement of Spatial Focality
A. Datta, M. Elwassif, and M. Bikson
Department of Biomedical Engineering, The City College of the CUNY, New York, NY, USA
We calculated the spatial distribution of the electric fields induced in the brain during transcranial current stimulation (TCS). The spatial focality obtained using ‘concentric-ring’ configurations is investigated using a realistic MRI derived 3D finite element model of the human head. Two disc electrode configurations were simulated using COMSOL Multiphysics. The distant-bipolar ...
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 ...
The Effect of Cartilaginous Rings on Deposition by Convection, Brownian Diffusion and Electrostatics
Luleå University of Technology, Luleå, Sweden
This paper presents a numerical study of the deposition of spherical charged nanoparticles caused by convection and Brownian diffusion in a pipe with a cartilaginous ring structure. The model is supposed to describe deposition of charged particles in the upper generations of the tracheobronchial tree of the human lung. The upper airways are characterized by a certain wall structure called ...
A Simplified Numerical Model for Simulating Sliding Door and Surgical Staff Movement in an Operating Theater
Dipartimento di Energetica, Università di Firenze, Firenze, Italy
This paper deals with a numerical investigation on sliding door and people moving effects on the indoor climate of a standard ISO5 class OT with an ultraclean air filter system and a total ceiling unidirectional diffuser. A simple method to analyze the effects on the OT climate by different sliding door conditions combined with crossing persons and persons with a stretcher crossing is provided. ...
B. Liu, T. C. Zhu
Department of Radiation Oncology, School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
Deformable image registration is a form of medical image processing that can provide insights into the development of phenomenon and variation in normal anatomical structure over time. Prior to post-operative pleural photodynamic therapy (PDT), a series of CT scans of lungs will be acquired. During PDT treatment, an infrared navigation system is used to contour the lungs and provide real-time ...