E. Bozelie, P. Bruins
Saxion University Enschede, Enschede, The Netherlands
In heating upgrades, most attention is paid to the boiler. When upgrading to HR++-boilers (eff of 107%) however, difficulties may occur since the high efficiency boilers are designed for water temperatures around 40°C, while the old radiators are designed for water temperatures higher than 60°C. The resulting mismatch may lead to reduced performance, a larger carbon footprint and increased ...
Saranya srinivasa raghavgan, Sowmya Srinivasa raghavan, Shruti Venkatesh
Rajalakshmi Engineering College, Chennai, India
In this project, we report a design of MEMS microphone that is based on the application of porous silicon in improving the sensitivity of bulk micro machined capacitive pressure sensors. The property of a low Young’s modulus of porous silicon and its dependence on porosity have been exploited to obtain a higher sensitivity compared to pressure sensors with single crystalline silicon membranes. ...
G. Bringout, T.M. Buzug
Institute of Medical Engineering, University of Lübeck, Lübeck, Schleswig-Holstein, Germany
Magnetic Particle Imaging (MPI) is a new imaging technology based on the non-linear magnetisation of magnetic nanoparticles which can be used as a tracer material. In a high speed 1D MPI Device, a sinusoidal signal containing a single frequency generate a time-varying magnetic field via the drive coil. We propose to use a COMSOL Multiphysics® simulation to be able to calculate otherwise hard ...
Ritsumeikan University, Kyoto, Kyoto, Japan
Vertical axis wind turbine has low rotation performance compared with that of horizontal axis wind turbine. This study proposes a new blade shape for vertical axis wind turbine effective for wide range of wind speed. Results obtained from a numerical COMSOL simulation and wind tunnel experiments show the proposed new blade profile has higher performance as compared with conventional blade ...
Tokyo Institute of Technology, Yokohama, Kanagawa, Japan
It is possible to obtain novel functions using nano-scaled structures and related physics that are impossible to be realized by conventional macro-scale technology. Thus, we are trying to understand the physics dominated by nanostructure and to develop the biosensing applications. Here, we exploit the interaction between materials and electrostatic field created by nanostructure, and introduce ...
Kenji SETOURA et al.
The University of Tokushima, Tokushima, Tokushima, Japan
Temperature measurement of nanoparticles (NPs) under heating is an important technique in order to achieve potential applications such as photothermal cancer therapy and nanofabrication. We implemented the method to estimate the local temperature of a laser-heated gold NP on glass substrate in various surrounding media by applying the light scattering spectroscopy. We discuss experimental ...
Interaction between Light Wave and Asymmetric Metal/Insulator/Metal (MM) Structure Coupled with Subwavelength Holes at Optical Fiber Apex
Osaka University, Suita, Osaka, Japan
Electromagnetic simulation of light wave interaction at around a tip of single mode optical fiber, which is formed of circular truncated cone shape, has been studied numerically by COMSOL Multiphysics and the RF Module (and Wave Optics Module). The fiber tip has specific nanostructure of asymmetric metal/insulator/metal (MIM) layers coupled with subwavelength holes. Behavior of surface plasmon ...
Calculation in Coupling Coefficient of 1.3μm Quantum Dots Distributed Feed Back Laser with Half Etched Mesa Structure
Keishiro GOSHIMA et al.
Aichi Institute of Technology, Toyota, Aichi, Japan
Quantum Dots (QDs) laser is expected to have a low threshold current density and high thermal stability. We propose the QDs laser with the half-etched mesa distributed feedback (HEM DFB) structure. We accurately calculated the coupling coefficient in a HEM waveguide using the finite element method (FEM).
A. Piyadasa[1,3], P. Gao[1,2,3]
Department of Physics, University of Connecticut, Storrs, CT, USA
Department of Materials Science & Engineering, University of Connecticut, Storrs, CT, USA
Institute of Materials Sciences, University of Connecticut, Storrs, CT, USA
3D finite element analysis model has been constructed for testing the directional dependence in a novel form of nanowire array gas flow sensor. Single nanowire (p-type single crystal Silicon) model is developed using fluid structure interaction and piezoresistivity components in the MEMS Module for COMSOL Multiphysics® software. Change in resistivity tensor due to induced stress in the nanowire ...
G. Ha, S. S. Kim, J. H. Kim
Chungnam National University, Daejeon, Korea
Here we aim to advance geomagnetic modeling approaches using COMSOL Multiphysics® software and improve the degree of detail that can be obtained from the measured magnetic field. First, we carried out benchmark tests by comparing the computed results using the widely used analytic solutions for rectangular bodies with arbitrary direction of magnetization with those from the AC/DC Module of ...