Aarthi E, Pon Janani S, Vaidevi S, Meenakshi Sundaram N , Chandra Devi K
PSG College of Technology, Coimbatore, Tamil Nadu, India
Blind cave fish are capable of sensing flows and movements of nearby objects even in dark and murky water conditions with the help of arrays of pressure-gradient sensors present on their bodies called lateral-lines. To emulate this functionality of lateral-lines for autonomous underwater vehicles, an array of polymer MEMS pressure sensors have been developed that can transduce underwater pressure ...
Design and Simulation of High-Throughput Microfluidic Droplet Dispenser for Lab-on-a-Chip Applications - new
C. Jin, X. Xiong, P. Patra, R. Zhu, J. Hu
Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Electrical and Computer Engineering, University of Bridgeport, Bridgeport, CT, USA
Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
Digital Microfluidic Biochip (DMFB) has been widely used in Lab-on-a-Chip (LoC) for disease diagnosis and treatment applications. To quickly convert traditional analog fluidic sample into digital droplets for DMFB processing, a high-throughput microfluidic droplet dispenser device is needed. In this paper, a high-throughput analog-to-digital microdroplet dispenser for Lab-on-a-Chip application is ...
V. Ranjan, A. Kumar, G. Prakash, R. Mandal
Department of Mechanical Engineering, Indian School of Mines, Dhanbad, Jharkhand, India
Understanding the flow fields at the micro-scale is a key to develop methods of successfully mixing fluids for micro-scale applications. This paper investigates flow characteristics and mixing of three different geometries in micro-channel. A Circular groove micro mixer has been designed and simulated. One such channel is shown in Figure1. The geometry of the channels taken was rectangular with a ...
P. Pattanaik, S. K. Kamilla, D. P. Das, S. K. Pradhan
MEMS Design Center, Institute of Technical Education & Research (ITER), Sikhya ‘O’ Anushandhan University, Bhubaneswar, Odisha, India
Process Engineering and Instrumentation Lab, Institute of Minerals and Materials Technology (IMMT), Bhubaneswar, Odisha, India
Dept of ECE, Hi-Tech Institute of Technology, Khurda, Odisha, India
This paper describes the design of an ultrasonic transducer using different lead free piezo-electric materials and evaluates their performance with different glucose levels in the human blood. COMSOL Multiphysics 4.2a was used for the simulation study using 2D axis symmetric model of piezoelectric transducer which was designed with lead free piezoelectric materials such as Barium Sodium Niobate ...
N. Gouthami, D. Parthiban, M. Alagappan, and G. Anju
PSG College of Technology
Tamil Nadu, India
The objective of this paper is to design a 3D Gas Sensor for sensing Hydrogen gas and to increase the conductivity at nano level. In this novel design, nanorods act as the sensing layer. The sensitivity towards gas adsorption is found to be increased due to its high surface to volume ratio. The total displacement and voltage on intermediate layer after gas adsorption will be changing by varying ...
Dynamic Characterization and Mechanical Simulation of Cantilevers for Electromechanical Vibration Energy Harvesting
N. Alcheick, H. Nesser, H. Debeda, C. Ayela, I. Dufour 
Univ. Bordeaux, IMS Lab, Pessac, France
Energy harvesting from ambient vibrations has become an interesting topic for powering wireless sensor networks. Resonant microdevices based on MEMS have become of central importance at low frequency. The power produced at resonance is at least one order of magnitude larger than off frequency power since the largest strain is obtained at resonance. In order to obtain large strain for efficient ...
P. Lazarou, C. Rotinat
CEA LIST/DIASI/LRI, Paris, France
A grand variety of microactuator technologies and demonstrators has been introduced during the last years. Of particular interest are the microactuators based on phase change materials and especially paraffin wax, which can volumetrically expand up to 15%, providing high force actuation. The object of this study is the numerical validation of a paraffin microactuator concept by coupling multiple ...
J. H. Lee
Department of Mechanical Engineering, American University of Sharjah, Sharjah, UAE
The idea of application as a hearing device based on a parasitoid fly, Ormia ochracea has been studied extensively recently. This paper addresses another possible application as an underwater directional sensor. In order to study the feasibility of the application, it is necessary to investigate the feasibility of the underwater application of the directional sensor based on the hearing ...
J. Hrdlicka, P. Cervenka, M. Pribyl, and D. Snita
Department of Chemical Engineering, Institute of Chemical Technology Prague, Prague, Czech Republic
In this paper we present results of the mathematical modeling of AC electroosmotic micropumps. Unlike others we use the full dynamic description, instead of the linearized model. Skewed hybrid discretization meshes are employed in order to accurately capture the main features of the studied system. Also, we introduce zig-zag electrode arrangements for traveling-wave electroosmotic micropumps. The ...
R. Nithya, K. Kavitha, R. K. Shahana, A. Gupta, M. Alagappan
Department of Biomedical Engineering, PSG College of Technology, Coimbatore, Tamilnadu, India
The primary function of the vestibular system is to provide the brain with information about the body\'s motion and orientation. The absence of this information causes blurred vision and spatial disorientation, vertigo, dizziness, imbalance, nausea, vomiting, and other symptoms often characterize dysfunction of the vestibular system. Our aim is to design vestibular prosthesis using COMSOL ...