H. Pakdast, Z. Davis
DTU Nanotech, Technical University of Denmark, Kgs. Lyngby, Denmark
This article describes the development of a bulk mode resonator which can be employed for detection of bio/chemical species in liquids. The goal is to understand the mechanical and electrical properties of a bulk mode resonator device which exhibit high frequency resonance modes and Q-factor. A high resonance frequency is desirable because a small change in the resonator’s mass, for ...
H-Y. Shen, H-P. Tsui, J-C .Hung, S-Y. Lin, and B-H. Yan
Metal Industries Research and Development Centre, Taichung, Taiwan
National Central University, Chungli, Taiwan
In this work, the process of micro-channels in electrochemical micro-milling by using rotating magnet assisted helical tool is presented. The results show helical tool and Lorentz force of the rotating magnetic field that enhance the renewal of the electrolyte and machining efficiency. The feed rate can be raised under the magnetic field assisted in terms of experimental results; moreover, the ...
M. Algappan, P. C. Chakravarthi, R. Keerthana, S. Mangayarkarasi, A. Kandaswamy
PSG College of Technology, Coimbatore, Tamil Nadu, India
A medical ventilator is an imperative device used to save life by delivering an assortment of air and oxygen into and out of the patients’ lungs to administer breathing or to assist obligatory breathing. The commercially available diaphragm based pressure sensors made up of silicon measure the air and oxygen flow. The proposed work utilizes the Piezo electric material for the pressure range ...
Experimentally Matched Finite Element Modeling of Thermally Actuated SOI MEMS Micro-Grippers Using COMSOL Multiphysics
M. Guvench, and J. Crosby
University of Southern Maine, Gorham, Maine, USA
In “Micro-Electro-Mechanical-Systems” shortly known as MEMS, one of the most important and effective principle of creating transduction of electrical power to displacement force is thermal expansion. A slim beam of MEMS material, typically Silicon, is heated by the application of electrical current via Joule heating; it expands and creates motion. In the design of many MEMS devices ...
The 3D Mixed-Dimensional Quench Model of a High Aspect Ratio High Temperature Superconducting Coated Conductor Tape
W.K. Chan[1,2], J. Schwartz, P. Masson, and C. Luongo
FAMU-FSU College of Engineering, Tallahassee, FL, USA
North Carolina State University, Raleigh, NC, USA
Advanced Magnet Lab, Palm Bay, FL, USA
ITER Organization/Magnet Division, Saint Paul-lez-Durance, France
A successful development of an effective quench detection and protection method for a high temperature superconducting (HTS) coil based on a HTS coated conductor tape lays on a thorough understanding of its slowly propagating, three-dimension (3D) quench behavior. Toward this goal, a 3D micrometer scale finite element (FE) thermo-magnetostatic HTS tape model is developed and implemented in ...
3D Stationary and Temporal Electro-Thermal Simulations of Metal Oxide Gas Sensor Based on a High Temperature and Low Power Consumption Micro-Heater Structure
N. Dufour, C. Wartelle, P. Menini
LAAS-CNRS, Toulouse, France
Renault, Guyancourt, France
The aim of this work was to simulate the electro-thermal behavior of a micro-hotplate used as a gas sensor, in order to compare the obtained results with a real structure. The structure has been designed in 3D and a stationary and a temporal study has been realized.
The Effects of the Electrical Double Layer on Giant Ionic Currents through Single Walled Carbon Nanotubes
G. Zhang[,][,], S.L. Bearden 
Department of Bioengineering, Clemson University, Clemson, SC, USA
Department of Electrical and Computer Engineering, Clemson University, Clemson, SC, USA
Institute for Biological Interfaces of Engineering, Clemson University, Clemson, SC, USA
Electrofluidic transport through a single walled carbon nanotube (SWCNT) is enhanced by electroosmosis. Electroosmosis is made possible in these devices by the combination of a large slip length within SWCNTs and the interfacial potential at the solution/nanotube interface. A computational model of a SWCNT device was developed using COMSOL Multiphysics to investigate the complete electrical ...
L. Sujatha, D. K. Balasubramanian, V. S. Selvakumar
Rajalakshmi Engineering College, Chennai, India
University of Central Florida, Orlando, Florida, United States
Micro Mirror is a versatile device which has been gaining popularity and also the importance of MEMS techniques to develop such devices. These mirrors find applications in fields such as optical switching, display and in medical fields for non-invasive imaging. A thermally actuated mirror moves in either vertical or horizontal directions for the given orientation. The ends of thermal actuators ...
J. Vijitha, S. S. Priya, K. C. Devi
PSG College of Technology, Coimbatore, Tamil Nadu, India
Sleep apnea is a type of sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep. There is a need to diagnose sleep apnea since it leads to fluctuations in the oxygen level that in turn affect the heart rate and blood pressure. In order to detect this disorder, a Micro Electro Mechanical System (MEMS) based piezoelectric pressure sensor was ...
K. Karthikeyan , L. Sujatha
Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
This paper presents the design and simulation of micromixer for Lab-On-Chip (LOC) applications. There are two types of micromixers: one is an active micromixer and another one is a passive micromixer. This paper investigates microfluidic flow characterization and mixing rate of two fluids in a micro- channel. Understanding the microfluidic flow at the micro channel is a develop methods of mixing ...