A. Candeo and F. Dughiero
Department Electrical Engineering, University of Padova, Padova, Italy
Radiofrequency Ablation (RFA) represents a valid alternative for treating liver metastases in medically complicated patients. Conventional devices currently operate at 500 kHz, due to good conducting properties of tissues. However, the use of lower frequencies (i.e. 20 kHz) has been recently reported to enhance the treatment effectiveness, due to a more pronounced difference in electrical ...
R. Zúñiga-Quesada, M. Vílchez-Monge, P. Vega-Castillo
Instituto Tecnológico de Costa Rica, Cartago, Costa Rica
This work describes the study of a thermal actuator and modifications to the materials employed in order to decrease power consumption and implementation costs. For this study, we worked on improving the thermal actuator described in the work of T. Ebefors. The criteria for choosing the new materials were lower power consumption, commercial availability, and ease processing. The thermal actuator ...
O. Meneghini, and S. Shiraiwa
Plasma Science and Fusion Center, Massachusetts Institute of Technology, Massachusetts, USA
Fusion is a form of nuclear energy which has impressive advantages from the point of view of fuel reserves, environmental impact and safety. If successful, fusion energy would ensure a safe, resource conserving, environmentally friendly power supply for future generations. In a world wide cooperation to achieve this goal, seven parties including Europe, Japan, Russia, USA, China, South-Korea and ...
B. Ottosson, Y. Jouahri, C. Rusu, and P. Enoksson
Imego AB, Gothenburg, Sweden
Chalmers University of Technology, Gothenburg, Sweden
The objective of this work has been to realize a feasibility study of a cooling device for a SQUID sensor using liquid nitrogen flowing through micro channels. The design consists of an epoxy cylindrical vacuum vessel skewed by a silicon microchannel heat sink. The SQUID sensor is situated directly on top of the microchannel heat sink. The device is used at room temperature and should be able to ...
X. Liu, S. Wang, and L. Lu
Tianjin Institute of Power Source, Beijing, China
Tianjin Institute of Power Source (TIPS) is the first, the largest and most complete electrical energy technology research institute of China. We use COMSOL Multiphysics to simulate the lithium-ion batteries. It contains: Simulation on charge-discharge behavior of lithium ion cells; Simulation on thermal and safety of lithium ion cells; Design for lithium ion cells – collector, stress; From ...
H. Zhang, W. Lin, and X. Wang
Chinese Academy of Sciences, Institute of Acoustics, Beijing, China
Acoustical well logging is an important technology for petroleum industry. Calibration and testing of tools in real wells is not feasible because the cost is high and the condition is not controllable. During manufacturing and maintaining, the logging tools are usually tested in a fluid filled circular pipe. The acoustic field in non-circular wells are calculated by using of the PDE mode of ...
S. Agarwal, S.P. Ruhela, V. Mente, M.G. Hemanath, B. Murlidhran, V.S. Kumar, C.P. Reddy, G. Ravisankar, B.K. Sharma, K. Nagarajan, C.A. Babu, and P. Kalyanasundaram
Indira Gandhi Centre for Atomic Research, Kalpakkam, Tamil Nadu, India
Pyrochemical process based on molten salt electrorefining is ideally suited for reprocessing spent metallic fuels from Fast Breeder Reactors. In this work, a heat transfer analysis of the Electrorefiner cell was conducted to develop a basic tool for designing of the engineering–scale Electrorefiner. The focus of this work is to find out steady state temperature profiles of cover gas and molten ...
P. Lezuo, M. Stoddart, and M. Alini
AO Research Institute, Davos, Grison, Switzerland
We aim to develop an in vitro culture system to mimic the human bone marrow stem cell niche in an artificial perfusion bioreactor environment to culture human adult stem cells. State of the art human bone marrow stem cell research shows that even smallest changes in the physical, thermo dynamical or biochemical environment induce a differentiation of human bone marrow stem cells into other cell ...
O. Smirnova, T. Fend, and D. Schöllgen
Institut of Solar Research in German Aerospace Agency
For the numeric investigations of the high temperature compact heat exchanger two numeric models with and without the regards of the velocity field development were used. The results of the comparison of the numeric and experimental data confirm the necessity of regarding the velocity field development for the compact heat exchangers. The two-dimensional simulation task with the regard of ...
A. J. Kovacs, and M. Nemenyi
University of West Hungary
Institute of Biosystems Engineering
Our Institute at the West Hungarian University is dealing with modelling of heat physical treatments in agricultural (biological) materials. The essential key in order to gain accurate results is to know the driving forces during heat and mass transfers. In case of mass transfer processes the application of moisture gradient as driving force gives false results. Therefore, we use water potential ...