A. Amardas , and S. Dwivedi
 Institute for Plasma Research, Gandhinagar, Gujarat, India
 COMSOL Multiphysics Pvt. Ltd, Bangalore, Karnataka , India
In this paper, detail magnetostructural analysis of fusion grade superconducting toroidal field coils that are used in ‘tokamaks’ is presented. The stresses that arise due to Lorentz forces in large size superconducting coils that carry high currents are of catastrophic type in nature. These stresses are expected to influence the integrated performance of the magnet system. In this ...
S. Maini , A. Marwaha , and S. Marwaha
 Department of Electrical & Instrumentation Engineering, SLIET , Longowal (Deemed University), Punjab
Hyperthermia is newly back in the interest of both, clinical and research oncologists, because of its properties to directly produce permanent damages of the treated tumors and to elicit important immunological responses against cancer cells by changing their immunogenicity. Microwave ablation is used in the treatment of primary and secondary tumors of the liver. Microwave antennas ...
F. Sawo and T. Bernard
Fraunhofer Institute for Information and Data Processing IITB, Karlsruhe, Germany
This paper addresses the modeling of a complex glass forming process as an example of a complex, nonlinear distributed parameter system. The system is modeled by a fluid dynamics approach, which means that the forming is regarded as a fluid with free surfaces. Here, the coupling of the forming process with the heat flow is considered. The influence of crucial model parameters (e.g., dynamic ...
G. Petrone, L. Cammarata, and G. Cammarata
Department of Industrial and Mechanical Engineering, University of Catania, Catania, Italy
Ventilation and Indoor Air Quality (IAQ) are issues of very high interest, determining comfortable conditions for occupants and no-contaminated local atmosphere. The aircraft cabins are more confined and have a higher occupant density than other indoor environments such as offices or residential houses. The passengers and the crew share a closed and ventilated cabin, which brings potential risk ...
M. Cavenago, P. Veltri, E. Gazza, G. Serianni, and P. Agostinetti
INFN-LNL, Legnaro, Padova, Italy
Consorzio RFX, Padova, Italy
The development of powerful negative ion sources requires precise and versatile simulation tools to predict the emittance of the extracted ion beams and the heat load on the electrodes. A first tool is a determination of the plasma beam interface which is accomplished by a set of macro based in the COMSOL Multiphysics environment. Notwithstanding the strong nonlinearities involved, a proper ...
Minhee Jun, and Jason V. Clark
Departments of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
Large deflection actuators are becoming increasingly important for microsystems. Since actuation forces are usually small, large deflection actuators usually require flexures with low stiffness. Rectangular serpentine flexures are often used for such actuators due to their low stiffness and large linear deflection range. In this paper we investigate the performance of curved serpentine flexures ...
Effects of the Film Thickness on the Transient Conjugate Opticalthermal Fields in Thin Films Irradiated by Moving Sources in Back and Front Treatments
N. Bianco, O. Manca, S.Nardini, and D. Ricci
DETEC, Università degli Studi di Napoli Federico II, Napoli, Italy
DIAM, Seconda Università degli Studi di Napoli, Aversa, CE, Italy
A two dimensional transient analysis of the conjugate optical-thermal fields induced in a multilayer thin film structure by a moving Gaussian laser source is carried out numerically in order to compare back and front laser treatment processes. Thermal and optical nonlinearity is induced during transient heating, since the response of weakly absorbing thin films depends on temperature. The heat ...
G.T. Martin, and L. Angelone
Hologic, Inc., Bedford, Massachusetts, USA
Massachusetts General Hospital, Harvard Medical School, Marlborough, Massachusetts, USA
The NovaSure Endometrial Ablation System® is designed to remove the endometrial lining in the uterine cavity of women who suffer from menorrhagia. The NovaSure disposable device consists of a 2-pole, 4 electrode array that is inserted into the uterine cavity and deployed. We have developed a COMSOL Multiphysics model of the NovaSure ablation process. The model utilized COMSOL Multiphysics ...
Michael A. Vallance
Team Leader, GE Global Research
Over time, rechargeable batteries degrade and eventually stop working. You see some combination of declining capacity, rapid self-discharge, and reduced power. Degradation mode depends on battery design, but also on the application. Often, multiple physical processes contribute to degradation. In the laboratory, you can measure performance degradation. You can dissect the battery to discover ...
Quasi-static Analysis on the Effect of Metal Penetrating Depth into the Substrate in Microstriplines
S. Musa, and M. Sadiku
Prairie View A&M University Networking Academy (PVNA), Prairie View, TX, USA
The effect of metallization thickness on planar transmission lines plays an essential role in microwave integrated circuits and thin film technology, especially in the propagation characterization and the electric field distribution in the structures. The objective of this paper is to consider the planar transmission lines with finite thickness not penetrating and penetrating into isotropic ...