M. R. Naik
Nitte Meenakshi Institute of Technology, Bengaluru, Karnataka, India
In a modern IC design, the capability of predicting the temperature profile is critically important as well as cooling and related thermal problems are the principal challenges. To address these challenges, thermal analysis must be embedded within IC synthesis. This paper presents thermal analysis of the FCBGA chip with a 4mm×4mm×0.3mm silicon die. The silicon die dissipates heat flux of ...
V. Gnanaraj, V. Mohan, and B. Vellaikannan
Thiagarajar College of Engineering, Madurai, Tamilnadu, India
A fundamental understanding of the transport phenomena in microfluidic channels is critical for systematic design and precise control of such miniaturized devices towards the integration and automation of Lab-on- a-chip devices. Electroosmotic flow is widely used to transport and mix fluids in microfluidic systems. Electroosmotic transport in convergent divergent micronozzle is significant in ...
P. Sharma, S. K. Dash, B. K. Nashine, S. S. Kumar, R. Veerasamy, B. Krishnakumar, P. Kalyanasundaram, and G. Vaidyanathan
 Fast Reactor Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu
Sodium is used as a coolant in Fast Breeder Reactors. Eddy Current Flowmeter (ECFM) is used for measurement of sodium flow in the primary pump and at the outlet of the subassemblies. Eddy Current Flowmeter (ECFM) works on the principle of change in the magnetic field profile due to induced eddy currents as a result of sodium flow. It consists of a central primary winding, energized from an A.C. ...
Y. Huang, and A. Mason
Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan, USA
This paper describes the modeling of an electrochemical biosensor embedded in a microfluidic channel to determine the concentration of a target biomolecule. The total amount of analyte in the sample can be calculated by integrating the analyte concentration over the duration of the peak current. The biosensor is constructed by immobilizing redox-enzyme on an interdigitated array (IDA) electrode ...
COMSOL Multiphysics® as a Tool for Reducing Animals in Biomedical Research: An Application in Dermatology
F. Rossi and R. Pini
Istituto di Fisica Applicata “Nello Carrara”, Consiglio Nazionale delle Ricerche, Firenze, Italy
In biomedical research the use of animal models gives rise to several ethical problems. COMSOL Multiphysics® may be used as a non-animal technique, very useful in overcoming all these concerns. In this presentation a particular application in dermatology is shown. Bioheat equation mode and diffusion approximation were used to design a theoretical model of blue LED light interaction with an ...
R. Zúñiga-Quesada, M. Vílchez-Monge, P. Vega-Castillo
Instituto Tecnológico de Costa Rica, Cartago, Costa Rica
This work describes the study of a thermal actuator and modifications to the materials employed in order to decrease power consumption and implementation costs. For this study, we worked on improving the thermal actuator described in the work of T. Ebefors. The criteria for choosing the new materials were lower power consumption, commercial availability, and ease processing. The thermal actuator ...
C. Belavý, G. Hulkó, K. Ondrejkovic, and P. Zajícek
Institute of Automation, Measurement and Applied Informatics, Faculty of Mechanical Engineering, Slovak University of Technology in Bratislava, Bratislava, Slovak Republic
In the paper distributed parameter system models in the form of lumped-input/distributed-output systems are introduced and modeling of temperature fields of the die in the benchmark casting plant is presented. Temperature fields were modeled and studied using a finite element method based software package COMSOL Multiphysics and numerical models in the form of a lumped-input/distributed-output ...
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 ...
Dependence of Potential and Ion Distribution on Electrokinetic Radius in Infinite and Finite-length Nano-channels
J. Schiffbauer, J. Fernandez, W. Booth, K. Kelly, A. Timperman, and B. Edwards
Physics Dept. West Virginia University, Morgantown, WV, USA
Chemical Engineering Dept,West Virginia University, Morgantown, WV, USA
Dept. of Chemistry, West Virginia University, Morgantown, WV, USA
A site-binding/dissociation model is used to determine surface charge in numerical studies of the equilibrium potential and ion distributions inside infinite and finite-length nano-channels. This COMSOL model allows us to investigate the response of surface (zeta) potential to environmental parameters such as reservoir salt concentration, solution pH and wall separation. The resulting ion and ...
J. Caire, A. Bouh, and E. Guilminot
LEPMI, UMR 5631, INPG - CNRS, Saint Martin d’Hères, France
EPCC, Arc'Antique, Nantes, France
Restoration of archaeological materials from oceans is a major activity of Arc’ Antique. Organic materials such as wood, tissues, leathers, papers and ceramics found in sea water are always impregnated with salts. Rinsing such archaeological objects with pure water to extract the salts takes too long, so electrophoresis was used to improve the salt extraction. The objective of this ...