Dr. Tewari is an Associate Professor in the Department of Mechanical Engineering at IIT Bombay. Prior to this he was a staff researcher at the General Motors Global R&D Center, Bangalore. He graduated with a B.Tech degree from IIT Kanpur followed by an MS and Ph.D. from Georgia Institute of Technology, Atlanta, USA. His area of research is in mathematical models for microstructural-mechanics. He ...
Lithography-Patterning-Fidelity-Aware Electron-Optical System Design Optimization by Using COMSOL Multiphysics with MATLAB®
Sheng-Yung Chen , Kuen-Yu Tsai 
Dept. of Electrical Engineering, National Taiwan University, Taipei, Taiwan
Electron-optical system (EOS) design for lithography provides the inherent advantage of higher resolution and maskless operation relative to optical technology. The use of multiple electron beams yields higher throughput, albeit with greater complexity in focusing, relative to the single beam. The primary goal of this work is to develop equipment, process, and software technologies for MEMS ...
F. Greco, J. van Herle, A. Nakajo
FUELMAT Group, Institute of Mechanical Engineering, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
A solid oxide fuel cell (SOFC) is composed of four layers (anode, electrolyte compatibility layer and cathode) of different ceramic materials. The anode layer is produced by tape casting, the remaining layers are deposited by screen-printing. The layers are sintered together at high temperatures. During heating up and cooling down (manufacturing process), stresses are generated in the layers due ...
S. Harrison, M. Young, M. Hayne, P. D. Hodgson, R. J. Young, A. Strittmatter, A. Lenz, U. W. Pohl, D. Bimberg
Department of Physics, Lancaster University, Lancaster, UK
Institut für Festkörperphysik, Berlin, Germany
Low-dimensional semiconductor nanostructures, in which charge carriers are confined in a number of spatial dimensions, are the focus of much solid-state physics research, offering superior optical and electronic properties over their bulk counterparts. Both two-dimensional (2D) and zero-dimensional (0D) structures have seen wide-ranging applications in laser diodes, solar cells and LEDs to name ...
C. Nadovich[1, 2], W. D. Jemison, J. A. Stoute, C. Spadafora
Lafayette College, Easton, PA, USA
Clarkson University, Potsdam, NY, USA
Pennsylvania State University, Hershey, PA, USA
INDICASAT AIP, Ciudad del Saber, Panama
A computer controlled microwave exposure system and specialized applicators were constructed for the purpose of facilitating accurate observations of microwave radiation effects on uninfected and infected biological tissue in vitro and in vivo under different electromagnetic modalities and exposure configuration. To address diverse requirements, three different applicators were developed: a ...
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.
Trapping DNA Molecules in Fluids Using Electrokinetic Effects Generated by Different Electrode Geometries
S. Ghonge, S. Kapur , S. Banerjee
Birla Institute of Technology and Science, Pilani - Hyderabad Campus, Hyderabad, Telangana, India
In this paper we present results of simulations done to predict the behavior of a system consisting of DNA molecules in an aqueous medium under the combined effect of AC Electroosmosis and Dielectrophoresis (DEP). ACEO is caused by the movement of fluid particles under the influence of the electric field. DEP is caused by polarization of the DNA particle. Two different electrode geometries ...
Modeling of Rotating Magnetic Field Eddy Current Probe for Inspection of Tubular Metallic Components
T. V. Shyam, B. S. V. G. Sharma, K. Madhusoodanan
Bhabha Atomic Research Centre, Mumbai, Maharashtra, India
Rotating Magnetic Field Eddy current technique is a promising technique for inspection of flaws in metallic tubular components. Three primary coils, 120 degrees apart in space, are excited with three phase current source, by virtue, a rotating magnetic field polarised in radial direction is generated. This radial field interacts with metallic tube and generates ...
J. Burrow , A. Bond ,
 Quintessa Ltd, United Kingdom
The UK Advanced Gas-cooled Reactor fleet, operated by EDF Energy, utilize a graphite core consisting of a lattice of around 3000 annular bricks. Due to irradiation, oxidation and thermal effects, the bricks deform and loose mass as they age. Of key concern is the late-life behavior of the bricks, in particular the predicted time at which brick shrinkage reverses into expansion, generating large ...
B. Noailles  , S. Meunier , V. Bruyere 
 RocTool, Savoie Technolac, Module R, France
 SIMTEC, France
In the molding industry, high productivity rate, low energy consumption, large 3D parts, and homogeneous temperature distribution are the main targets. The 3iTech® inductive technology developed by RocTool ensures both good temperature homogeneity and short heating time. Conventionally, to guarantee efficient cooling, a turbulent water flow is directly integrated into the mold. Ideally, to cope ...