J. Ebert, S. Ghosal, A. Emami-Naeini
SC Solutions, Sunnyvale, CA, USA
This paper describes the development of a COMSOL model of Electro-Chemical-Mechanical Planarization (ECMP) that was validated with experimental data. ECMP is used for processing of semiconductor wafers. We developed a 2D model of flow of phosphoric acid solution (the electrolyte) between two parallel plates that focuses on the physics and electrochemistry in ECMP. The model includes steady-state ...
Lowering of the Interstitial Fluid Pressure as a Result of Tissue Compliance Changes during High Intensity Focused Ultrasound Exposure: Insights from a Numerical Model
E. Sassaroli, B. O'Neill 
The Methodist Hospital Research Institute, Houston, TX, USA
Interstitial fluid pressure (IFP) is elevated in tumors. Owing to this elevated IFP, the interstitial fluid velocity (IFV) is negligible throughout the tumor but significant near the tumor margin. Any therapeutic strategy that can lower IFP will improve drug convection within the tumor and decrease convection of drugs from the tumor margin. High intensity focused ultrasound (HIFU) has been shown ...
R.E. Tosh, H. Chen-Mayer
National Institute of Standards and Technology, Gaithersburg, MD, USA
The technique of water calorimetry for primary-standard dosimetry of radiotherapy-level ionizing radiation is well established at national metrology institutes around the world, where such a direct realization of absorbed dose establishes the basis for calibrating instruments used for dosimetry in medical settings. The typical calorimeter system uses miniature thermistor beads to measure ...
Indian Institute of Technology Madras, Chennai, Tamil Nadu, India
Realising the interlinkage of nature and engineering are of paramount essential while comprehending the basics of system’s performances. Application of biotechniques in air pollution control is one such emerging scientific area, where the understandings of these complex systems demand more utilisation of computing softwares. Recently, biofiltration is a versatile biological air pollution control ...
TOYOTA Central R&D Labs., Inc., Aichi, Japan
This presentation deals with a density based topology optimization for multiphysics problems implemented in COMSOL Multiphysics. Using this method, we are going to design a heat exchanger for maximizing the performance under a constant input power.
Sumitomo Heavy Industries, Ltd., Shinagawa, Tokyo, Japan
We, Sumitomo Heavy Industries, Ltd. have been developing a microwave ion source since 2011. The design of the chamber is important to generate plasma efficiently. The plasma chamber was designed with the COMSOL Multiphysics RF module, and reported the results at this conference last year. In order to improve the reflective characteristic further, we redesigned the plasma chamber with the RF ...
P. Vincent, E. Humphreys
College of Earth, Ocean, & Atmospheric Sciences, Oregon State University, Corvallis, OR, USA
Department of Geological Sciences, University of Oregon, Eugene, OR, USA
Introduction: Lithospheric delamination beneath the western U.S. is believed to be the driving mechanism responsible for the evolution of magmatic and topographic features observed at the surface in the western U.S.. This process requires hot asthenosphere to be in contact with the underside of cold sub-crustal lithosphere and believed to be initiated by the Yellowstone hot spot plume that 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 ...
Can we use Aquifers to Monitor Magma Chambers? Using COMSOL Multiphysics® to Investigate Subsurface Strain Changes and Their Effect on Hydrological Systems - new
K. Strehlow, J. Gottsmann, A. Rust
University of Bristol, Bristol, UK
Groundwater-bearing geological layers respond to and modify the surface expressions of magmatic activity, and they can also become agents of volcanic unrest themselves. Interpretations of unrest signals as groundwater responses to changes in the magmatic system can be found for many volcanoes and include a wide range of phenomena and suggested processes to explain them (e.g., Newhall et al., ...
D. Trushnikov, G. Mladenov
Perm National Research Polytechnic University, Perm, Russia
Institute of Electronics of Bulgarian Academy of Sciences, Sofia, Bulgaria
This work describes a model for plasma formation in the keyhole and above the EBW zone. The parameters of the plasma are closely connected to the characteristics of the thermal action of the electron beam on the welded metal, which allows operational control and study of EBW. The ionization intensity of the vapour due to beam electrons and high-energy secondary and backscattered electrons is ...