T. V. Shyam, B. S. V. G. Sharma, Mrigendra Kumar Mrityunjaya , Dr. Ravinder Agarwal
Reactor Engineering Division, Bhabha Atomic Research Centre, Mumbai, India
Thapar University, Patiala, India
Flow measurement of molten metals is a formidable task considering the hostile conditions. Many electromagnetic methods have been evolved for measurement of flow of conductive medium. The Lorenz force velocimetry is promising considering its non-intrusive nature. The Lorenz force velocimetry is an electromagnetic flow measurement method that is based on exposing molten metal flow to a ...
T. K. Chou, M. Chouteau, M. J. Yi
Department of Civil, Geological & Mining Engineering, École Polytechnique de Montréal, Montreal, QC, Canada
Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea
Time-lapse electrical resistivity tomography (ERT) method provides a non-invasive way to monitor subtle sub-surface changes caused by water flow such as in an infiltration test. Problems arise when the inversion models contain artifacts due to measurement errors, rapid change in soil electrical property during measurement time, etc. A new approach was developed by Kim et al. (2004) and (2009) ...
Conductivity Estimation of Breast Cancer Using COMSOL® Modeling of Microwave Scattering and Frechet Mean Estimate of Covariance
A. Jeremic, E. Khoshrowshahli
Electrical & Computer Engineering, McMaster University, Hamilton, ON, Canada
Biomedical Engineering, McMaster University, Hamilton, ON, Canada
Breast cancer detection is one of the most important problems in health care and it is second most frequent cancer according to WHO. It is recommended that women over fifty or even younger in some cases do a screening test every two years. Besides clinical breast examination, there are number of imaging methods used for this purpose, such as mammography, ultrasound and MRI. Among them, ...
C. Touvrey, V. Bruyere, P. Namy
CEA DAM, Valduc, France
SIMTEC, Grenoble, France
Spot laser welding is largely used in industrial manufacturing, especially in the case of small penetration depth. Unfortunately, welded joins are often polluted by porosities. The formation of porosities depends on complex thermo-hydraulic phenomena. During the interaction, a deep and narrow cavity - called the keyhole - is formed. At the end of the interaction, surface tension forces ...
The University of Tokyo, Japan
In this work, the pulsed-field magnetization of high-temperature bulk superconductors is investigated.The presentation is written in Japanese.
AGH University of Science and Technology
This elaboration presents a pre-study on automatic rotor construction for the flywheel energy storage system dedicated to operate in the levitation mode. The optimization profile model is used as a basic profile source. The 3D flywheel shape is generated on the base of obtained profiles. Eigenfrequencies are calculated to validate the operation on rigid mode. A steel and aluminum based ...
D. Križaj, Z. Top?agi?, B. Drnovšek
Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia
Numerical simulation of an electromagnetic trigger with a short-circuit ring is presented. The main goal of inclusion of a short-circuit ring in an electromagnetic trigger is to develop an element suitable for use in a circuit breaker with capabilities of selective switching. The main problem to be solved is vibration of a moving contact due to zero electromagnetic force between the anchor and ...
H. P. Schmidt
FH Amberg-Weiden, EI, Amberg
In materials handling decentralized automation is widely applied. Loads like variable speed drives are not radially fed but connected to a power bus. Furthermore power and data might be transmitted within one single cable. Here the need for thermal and electrical simulations arises.A model is derived to calculate the ampacity for various operating conditions and COMSOL is applied to determine ...
M. Ruat, E. Gros d'Aillon, J. Tabary, and L. Verger
LETI-CEA Recherche technologique, MINATEC, Grenoble, France
CdTe and GaAs 3D semiconductor radiation detectors for medical imaging have been simulated. This was done through coupling Monte-Carlo simulations of interacting of X- and γ-rays with matter (using PENELOPE) while computating the applied potential, weighting field, free charge carriers transport and electrodes Charge Induction Efficiency (CIE) with COMSOL Multiphysics. Since the continuity ...
CESI RICERCA, Milano, Italy
The problem of evaluating of the current density distribution, J, and the magnetic field, H, inside thin strips (conductive or superconductive) induced by an external magnetic field or resulting from transport currents is of great importance in many applications.Two significant examples we refer to are self and mutual inductance coefficients between paths of a circuit board and to the AC losses ...