R. Millett, J. Wheeldon, T. Hall, and H. Schriemer [1,2]
 Centre for Research in Photonics, School of Information Technology and Engineering, University of Ottawa, Canada
 Centre for Research in Photonics, Dept. of Physics, University of Ottawa, Canada
A 2D multiphysics model has been developed to simulate heterojunctions separating abruptly doped semiconductor layers of different dopant concentrations. Numerical results are presented for the case of nN, pN and PpN heterojunctions, and a general procedure for simulating multiple heterojunctions is described.
H. Surdi, A. Singh, S. S. Prabhu 
Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai,India
Since the advent of Terhertz(THz) technology, improving the THz emission power has been one of the major research goal. One of the methods to increase the THz emission power is to increase the coupling of excitation laser light to the dielectric substrate.The field of nano-plasmonics exploits light-matter interactions at nanometer scale. With the help of metallic nano-structure at ...
J.S. Crompton, L.T. Gritter, S.Y. Yushanov, and K.C. Koppenhoefer
AltaSim Technologies LLC, Columbus, OH, USA
Analysis of burning candles is extremely complex; combustion produces a highly non-linear temperature profile through the flame in which local temperatures may exceed 1400 °C. Heat transfer includes radiation, conduction and convection components and the low melting point of the candle wax leads to a phase change that allows mass transport via capillary flow prior to combustion in the flame. ...
S. Meenatchisundaram, S. M. Kulkarni, S. Bhat
Department of Instrumentation and Control Engineering, Manipal Institute of Technology, Manipal, Karnataka, India.
Department of Mechanical Engineering, National Institute of Technology, Surathkal, Karnataka, India.
Piezoresistive pressure sensors have received much attention over the years because of low cost, simple measurement techniques, etc. There is a challenge in design with respect to appropriate positioning, shape and temperature compensation. Different models of piezoresistive pressure sensors are proposed to enhance its sensitivity in terms of output voltage. This paper aims in sensitivity ...
D. Droste, F. Lindner, C. Mundt, M. Pfitzner
Universität der Bundeswehr, Munich, Bavaria, Germany
In this study we investigate the heat and mass transfer in a porous media with phase change. The liquid fluid is injected from one side and heated from the other side, where it leaves the porous material in a gaseous state. Dominant forces are capillary interactions and two-phase heat conduction. To model the process we use a two-phase mixture model on a macroscopic scale. This model is ...
P. Pattnaik, S. K. Kamilla , Debi Prasad Das
MEMS Design Center, Institute of Technical Education & Research (ITER),Siksha ‘O’ Anushandhan University, Bhubaneswar-751030, Odisha,India
Process Engineering and Instrumentation Cell,Institute of Minerals and Materials Technology (IMMT),Bhubaneswar, Odisha,India
To prevent further complications in diabetes, proper management of blood glucose levels is essential. By using ultrasonic transceivers (both transmit and receive) the glucose level of human blood can be determined. By using this ultrasonic technique miniaturized sensors for non-invasive monitoring blood glucose levels. In this paper Barium Titanate (BT) thin film was used as a transmitter and ...
G. R. Prakash, K. M. V. Swamy, S. Huddar, B. G. Sheeparamatti, Kirankumar B. B.
Basaveshwar Engineering College, Bagalkot, Karnataka, India
The focus of this paper is to study the effect on resonance frequency and power enhancement techniques 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 relation was developed based on the shift in resonance frequency(Figure 2) caused by the addition of a thin film ...
H. S. Shriram, T. Nimje, D. Vakharia
BITS Pilani, Rajasthan, India
Radio Frequency MEMS devices have emerged to overcome the problem of high losses associated with semiconductors at high frequencies. A tunable MEMS capacitor is a micrometre-scale electronic device whose capacitance is controlled through different actuation mechanisms which govern the moving parts. It can have electrostatic or electrothermal actuators depending on the functional complexity and ...
Mitsubishi Turbocharger & Engine Europe, Almere, The Netherlands
This study presents a rotordynamic analysis of a rotor on hydrodynamic bearings using COMSOL Multiphysics®. In this paper, the complexity of the model is gradually increased. Starting point of the analysis is the modal analysis of the rotor in free-free conditions. A Reynolds model is set up to predict the film pressure distribution under shaft loading. Due to the cross coupling terms of the ...
 Alpha Project Service, Vadodara, Gujarat, India
The interaction of a single particle in straight rectangular channel in laminar flow is modelled explicitly using the set of Navier Stokes equation for the fluid motion and Newton momentum equation for the particle motion in Cartesian coordinate system. The evaluation of integral force acting on the particle along with the behaviour of streamlines as a function of Reynolds number ReP < 120 is ...