Syuhei LEE et al.
Chiba University, Chiba, Chiba, Japan
We have studied ultrafast all-optical switching devices based on two-photon absorption, which are expected to have ultrafast response less than 1 ps in wideband and to be independent of polarization of light. In our laboratory, we have obtained the analytical solution for the equation of light propagation in our model that the two-photon absorption occurs in a sample. Though we have used the ...
CERN, Geneva, Switzerland
ELENA is a small cooler decelerator ring at CERN which will be built to increase substantially the number of usable antiprotons delivered to experiments for studies with antihydrogen and antiprotonic nuclei. COMSOL Multiphysics® software has been used to completely model the ELENA electron cooling device in 3D. We have taken advantage of the different physics-based modules of COMSOL ...
E. Salomatova, D. Trushnikov, V. Belenkiy, V. Tsaplin
Perm National Research Polytechnic University, Perm, Russia
In this paper describes an original method for indirect measurement of the vapor pressure and temperature in the keyhole in electron beam welding. This method is based on the determination of the concentration of chemical elements in the vapor above the welding zone. Taking into account these data model is built 2D diffusion processes with heat and mass transfer elements in the melt, which ...
N. Semmar, M. Fournier, P. S. Alleaume , A. Seigneurin , , ,
GREMI-UMR7344, CNRS/University of Orléans, Orléans, France
Collegium Sciences et Techniques, Orléans, France
ST Microelectronics Tours SAS, Tours, France
Usually, in integrated circuits, the chip is brazed on leadframe and then, a polymer resin is molded around to create the packaging. On the first hand, the molding process at high temperatures will induce thermomechanical stress on the chip. As the leadframe, the chip and the braze have all different thermoelastic properties, these stress can be critical for the chip connections. To ...
P. Hainke, D. Kappe, A. Hütten
Universität Bielefeld, Bielefeld, Germany
As the importance of nanoparticles is growing more and more, controlling and understanding the properties of nanoparticles became a focus of research. In this field Meyer at al.  are researching the GMR effect in granular gels to develop magnetoresistive sensors. The GMR in granular gels is simulated to investigate the physical processes in those systems. As soon as the models coincide with ...
T. Suzuki, C. Holloway, S. Taylor
University College London, London, UK
Manual wheelchair users suffer shoulder pain and injury in the long term because of unconscious overuse. The ‘SENSEWHEEL’, which interposes three identical load cells between pushrim and rear wheel, measures the three components of pushing force Fx, Fy and Fz, and axial torque Tx applied at each load cell. Strain gauges were located on a diaphragm forming one face of the load cell. The ...
Numerical Simulation of Chamber Design for Pulsed Electric Fields Processing of Wet Olive Pomace - new
N. Varga, I. Perales, A. Portugal
ATEKNEA Solutions Hungary, Budapest, Hungary
ATEKNEA Solutions Catalonia, Barcelona, Spain
The application of pulsed electric fields (PEF) is well known in the food industry as an advanced technology for mass transfer improvement. A new potential adaptation area of PEF could be extracting a valuable antioxidant called polyphenol from wet olive pomace (WOP) which is a by-product of olive oil production. The modelling includes the PEF effects on the WOP which is flowing through a ...
S. Aissani, L. Guendouz
CRM2, Institut Jean Barriol, University of Lorraine, Vandoeuvre-lès-Nancy, France
Mesures et architectures électroniques, University of Lorraine, Vandoeuvre-lès-Nancy, France
Nuclear Quadrupole Resonance (RQN) is a radio frequency (RF) spectroscopic technique that is used to detect quadrupole nuclei such as Nitrogen-14. NQR was found to be a good candidate for detecting narcotics, explosives and medicines . However, due to its low sensitivity the use of NQR is still limited. One way to increase the sensitivity is to improve the RF coil by means of a better RF ...
Extraction of Thermal Characteristics of Surrounding Geological Layers of a Geothermal Heat Exchanger by COMSOL Multiphysics® Simulations - new
N. Aranzabal, J. Martos, J. Soret, J. Torres, R. García-Olcina, Á. Montero
Technical School of Engineering, University of Valencia, Valencia, Spain
Department of Applied Physics, Politechnical University of Valencia, Valencia, Spain
It has been demonstrated that is possible obtain the thermal parameters of geological layers of a BHE (Borehole Heat Exchanger) by fitting temperature evolution in an observer pipe inserted into borehole.
E. Hollander, E. O. Kamenetskii, R. Shavit
Microwave Magnetic Laboratory, Department of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer Sheva, Israel
Microwave sensing and monitoring is very attractive for biological applications because of their sensitivity to water and dielectric contrast. Direct detection of biological structures in microwave frequencies and understanding of the molecular mechanisms of microwave effects is considered as a problem of a great importance. Nowadays, however, microwave technique for localized testing biological ...