J. Kantor, Y. Feng, C. Acosta, E. Massingill
University of Texas at San Antonio, San Antonio, TX, USA
Cryotherapy and thermotherapy are common methods of treatment for acute injuries ranging from ankle sprains to complex surgery. The idea behind such treatment is that a change in temperature will reduce pain and constrict fluctuations in blood flow at the targeted area. The purpose of this study is to simulate the vascularized tissue reaction and the resulting blood flow fluctuation from thermal ...
N. Stroia, D. Moga, G. Mocanu, Z. Barabas, R. Moga 
Technical University of Cluj-Napoca, Cluj-Napoca, Romania
This work aims to determine optimized configuration using COMSOL Multiphysics® for a class of transducers. Two types of capacitive sensors needed for monitoring and control in agriculture are investigated: a rain sensor and a soil humidity sensor. COMSOL Multiphysics® is used to test various configurations for both transducers, like the number of teeth in the comb, the depth of the teeth, the ...
V. Tidwell, P. LaRosa, M. Zhang, H. Eswaran, A. Nehorai
Department of Electrical & Systems Engineering, Washington University in St. Louis, St. Louis, MO, USA
Monsanto Company, Technology Pipeline Solutions, St. Louis, MO, USA
OB/GYN Department, University of Arkansas for Medical Sciences, Little Rock, AR, USA
Uterine contractions during pregnancy are currently poorly understood – experts disagree on the mechanisms by which contractions propagate through the organ and the structural layout of the uterine muscle fibers. We have developed a multi-scale model of the uterus, at the cellular, tissue, and organ levels. By comparing simulated abdomen-level magnetic field readings from our model to clinical ...
M. Higginson-Rollins, C. Crawford
Department of Electrical & Computer Engineering, University of Kentucky, Lexington, KY, USA
Department of Physics & Astronomy, University of Kentucky, Lexington, KY, USA
The traditionally magnetic design process involves guessing at a reasonable conductor geometry, using finite element analysis (FEA) software to calculate the resulting fields, and modifying the configuration iteratively to reach an acceptable solution. Taking the opposite approach, we developed a method of calculating the conductor geometry as a function of the desired magnetic field. This ...
R. Penjweini, M. M. Kim, T. C. Zhu
Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA, USA
Introduction: Singlet oxygen (¹O₂) has a critical role in the cell-killing mechanism of photodynamic therapy (PDT). Therefore, in this study, the distance-dependent reacted ¹O₂ is numerically calculated using finite-element method (FEM). Herein, we use a model [Ref. 1] that has been previously developed to incorporate the diffusion equation for the light transport in tissue and the macroscopic ...
M. Audley, G. de Lange, G. Keizer, C. Bracken
SRON Netherlands Institute for Space Research, Groningen, The Netherlands
National University of Ireland, Maynooth, Co. Kildare, Ireland
We are investigating gold-plated micromachined silicon integrating cavities for arrays of far infrared Transition Edge Sensor bolometers. We present the results of our simulations and show how we used COMSOL Multiphysics® software to optimize the geometry of the integrating cavity. We show that we can achieve a high optical efficiency over a wide frequency range.
F. Qian, L. Quan, X. Liu
Institute of Acoustics and School of Physics, Nanjing University, Nanjing, China
Previous research into acoustic omnidirectional absorber (AOA) has shown the feasibility of forming acoustic black hole to guide the incident wave into the central absorptive cavity. However, major restrictions to practical applications exist due to complexity of designing metamaterials and unchangeable working states. Here, we propose two cylindrical, two-dimensional AOA schemes based on ...
M. Z. Saghir , A. Ahadi , A. A. Mohamad ,
 Department of Mechanical Engineering, Ryerson University, Toronto, ON, Canada
 Department of Mechanical Engineering, University of Calgary, Calgary, AB, Canada
Nanofluids is a new class of fluid consisting of particles in a liquid. Different base liquid has been proposed and the most common one is water. The concentration of these particles can range from 0.1% to 5% or greater. Different numerical models have been proposed to solve this interesting problem. Some scheme assumed the fluid as a single fluid and other assumed as a two phase system ...
J. Liu , V. B. Chalivendra , C. Goldsmith , W. Huang ,
 Department of Mechanical Engineering, University of Massachusetts - Dartmouth, Dartmouth, MA, USA
 MEMtronics Corporation, Richardson, TX, USA
Radio frequency (RF) micro-electro mechanical system(MEMS) switch works in on/off modes controlled by electrostatic forces. In off mode, rough surfaces of electrodes come into a contact to shunt the RF signal. Surface contact area has been recognized as a key factor in RF MEMS performance and reliability. Multi scale regular-fractal structure is observed on MEMS surface. Nonlinear Structural ...
M. Maitra , H. B. Nemade , S. Kundu ,
 Indian Institute of Technology Guwahati, Guwahati, Assam, India
The objective of this paper is to show the simulation of a piezoelectric thin film device and its application as a sensor. Piezoelectric aluminum nitride thin film clamped at two ends is simulated using COMSOL Multiphysics software. The device consists of the piezoelectric thin film suspended on a cavity etched on a silicon substrate. Two metal electrodes are placed at the two fixed sides of the ...