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2012 - Bangalore

Optimizing the Performance of MEMS Electrostatic Comb-Drive Actuator with different Flexure Springs

S. Gupta[1], T. Pahwa[1], R. Bansal[1], V. Bansal[1], B. Prasad[1], D. Kumar[1]
[1]Electronic Science Department Kurukshetra University, Kurukshetra, Haryana

A new design of electrostatic comb drive actuator is presented in this paper by using different spring designs and with different folded beam lengths. An increased displacement of lateral comb drive actuator will subsequently be accomplished with the same actuation voltage. Stress ... En savoir plus

Effect of Conductivity and Viscosity in the Velocity Characteristics of a Fluid Flow Induced by Nonuniform AC Electric Field in Electrolytes on Microelectrodes

P. Parikh[1], A. Sethi[1], S. Benedict[1], D. N. Prasad[1], B. Mallik[2], S. Kapur[1], S. Deb[1], S. Banerjee[1]
[1]BITS Pilani Hyderabad Campus, Hyderabad, Andhra Pradesh, India
[2]Megnadh Saha Institute of Technology, Kolkata, India

Electrokinetic transport of fluids has been investigated both experimentally and numerically due to its various applications in microfluidic devices [1-5]. These devices offer the advantage of transporting fluids or particles to specific locations without the aid of mechanical ... En savoir plus

Design and Analysis of Micro-Heaters for Temperature Optimization using COMSOL Multiphysics for MEMS Based Gas Sensor

V. S. Selvakumar[1], L. Sujatha[1]
[1]Rajalakhmi Engineering College, Chennai, Tamil Nadu, India

Micro-Heaters are the key components in sub-miniature micro-sensors, especially in gas sensors. The metal oxide gas sensors utilize the properties of surface adsorption to detect changes in resistance as a function of varying concentration of different gases [5]. To detect the resistive ... En savoir plus

Design and Implementation of MEMS based Blood Viscometer for INR Measurement

J. G. Immanuel[1], K. Poojitha[1], B. Viknesshwar[1], A. Gupta[1]
[1]PSG College of Technology, Peelamedu, Coimbatore, Tamil Nadu, India

The paper brings out the designing and implementation of blood viscosity monitoring device that gives us the INR to measure the effectiveness of anti coagulant medications .When a blood vessel is damaged, clotting cascade begins that results in blood clot. This process is affected by ... En savoir plus

Electro Thermal Performance Prediction of Radio Frequency Ablation System for Efficient Cancer Treatment

C. Thiagarajan[1], V. Gnanasekar[2]
[1]ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka, India.
[2]Perfint Healthcare Pvt. Ltd, T.Nagar, Chennai, India.

Cancer causes significant human deaths. Radiofrequency ablation is an encouraging procedure for cancer treatment. The objective is to demonstrate the multiphysics simulation methodology. This paper summarizes the problem , governing equations, methodology, assumptions, simulation results ... En savoir plus

Study of Effect on Resonance Frequency of Piezoelectric Unimorph Cantilever for Energy Harvesting

G. R. Prakash[1], K. M. V. Swamy[1], S. Huddar[1], B. G. Sheeparamatti[1], Kirankumar B. B.[1]
[1]Basaveshwar Engineering College, Bagalkot, Karnataka, India

The focus of this paper is to study the effect on resonance frequency and power enhancement techniques[1] of piezoelectric MEMS and modeling, design, and optimization of a piezoelectric generator based on a two-layer bending element(Figure 1) using COMSOL Multiphysics. An analytical ... En savoir plus

Effects of Fluid and Structural Forces on the Dynamic Performance of High Speed Rotating Impellers.

C. Thiagarajan[1], G. Shenoy[2], B. S. Shenoy[3]
[1]ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, India.
[2]Department of Mechanical & Manufacturing Engineering, Manipal Institute of technology, Manipal, India
[3]Department of Aeronautical & Automobile Engineering, Manipal Institute of Technology, Manipal, India

Vibration and Dynamic performances of the rotating machinery are conventionally evaluated based on the dominant structural forces such as the centrifugal forces. The increase in rotational speed, miniaturization and performance, demands for improved and accurate evaluation of the ... En savoir plus

Acoustical Design of Stethoscope for Improved Performance

C. Thiagarajan[1], Gururajan R.[2], A. H. Baig[2], Prema S.[3]
[1]ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka India
[2]University of Southern Queensland, Toowoomba Qld 4350, Australia.
[3]RMK Engineering College, Chennai, Tamil Nadu, India

Stethoscope is in use for more than 200 years for medical diagnostics, especially for auscultation. Recently, the unprecedented growth in mobile technology revived the use of stethoscope for Telehealthcare. Digital or electronic stethoscopes are increasingly researched for use in ... En savoir plus

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