University of California, Irvine, CA, USA
Water-and-energy supply is a global issue of paramount importance. The demand for safe potable water is quickly exceeding the limits of natural regional water resources. Like oil, water is a finite resource; unlike oil, however, water has no alternatives. Water, energy and their environmentally sound solutions are interrelated; and of all the present-day environmental problems, those related to ...
D.P. Cook, Y. Chen, H.Chen, and J. Ma
University of Nevada, Las Vegas
The pilot Molte lead-bismuth target circuit (TC-1) in the University of Nevada was designed for beam power of 1 MW accelerator driven system (ADS). Circulation of the liquid alloy is driven by an annular linear induction pump. A numerical study of the pump efficiency has been conducted to determine which operational parameters are responsible for this low efficiency and to give insight ...
S.M. Musa, and M.N.O. Sadiku
Prairie View A&M University Networking Academy, Prairie View, Texas, USA
This paper presents the quasi-TEM two-dimensional (2D) approach for the analysis of multiconductor transmission lines interconnect in single and two-layered dielectric region using the finite element method (FEM). FEM is especially suitable and effective for the computation of electromagnetic fields in strongly inhomogeneous media. We illustrate that FEM is as suitable and effective as other ...
M. Antczak, P. Idziak, and W. Lyskawiski
Poznań University of Technology, Poland
The paper presents the results of the experiment consisting in determination of the influence of the magnetic field on deformations of the stator and the rotor of the DC motor. The numerical model of the motor for the frameless DC machine of the G series has been elaborated. Real material properties and the phenomenon of the magnetic circuit saturation have been taken into consideration. The ...
Calibrating electric instruments of the Huygens probe and modelling the dielectric properties of the atmosphere and of the surface of titan
Centre d'Etude des Environnements Terrestre et Planétaires (CETP), Saint Maur des Fossès, France
In 14 January, 2005, the Huygens Probe has descent through the atmosphere of Titan and has survived to touchdown, collecting data in the atmosphere and on the surface of the largest moon of Saturn. One of the instruments, the Huygens Atmospheric Structure Instrument (HASI), includes the Permittivity, Waves, and Altimetry (PWA) analyser, which is a subsystem for studying the electric activity of ...
S.B. Shetye, J.S. Agashe, and D.P. Arnold
University of Florida
The objective of this researh is to develop new, magnetically-directed, self-assembly approaches to enable three-dimensional structures to be formed in parallel from a heterogeneous mixture of parts of arbitrary size and shape.
Grading of Electric Field in Medium Voltage Motors using Embedded Metallic Foils in Stator Ground-Wall Insulation
E. Sharifi, E. A. Cherney, and S. Jayaram
University of Waterloo, Waterloo, ON, Canada
A conventional stress grading system in medium voltage motors, based on field dependent nonlinear material, used at the end of the conductive slot coating in form-wound coils, is not effective when the motor is fed from pulse width modulated (PWM) voltage source converters (VSCs). Very fast rise-time with high repetitive pulses of these converters impose high electric and thermal stresses on the ...
K. Mayekar, H. Bousack, and G. von der Emde
Rheinischen Friedrich-Wilhelms-Universität, Bonn, Germany
Forschungszentrum Jülich, Jülich, Germany
Weakly electric fishes provide ideal paradigms for studying the interactions between morphology, perception, and locomotion. Electrically active body surface acts as an \"electric retina\" through which they can explore the surroundings. The computational investigations of this phenomenon is helpful to obtain a deeper understanding of the electric field sensing modalities of the fish which can ...
D. Andrade, and D. Schiffabuer
Pennsylvania Breaker LLC, Canonsburg, PA, USA
Pennsylvania Breaker presents a dielectric stress study for its 72kV class breaker. This study was instrumental in the design and testing procedures during the research and development phase. COMSOL was incorporated into the design pipeline as an important tool for rapid reference of complicated and costly steady state electric cases. The purpose of this study was to develop a robust geometric ...
F. Noto, V. Bellini, E. Cisbani, and C. Sutera
INFN Sez. di catania, Università di Catania, Italy
INFN Sez. Roma, Italy
The Gas Electron Multiplier (GEM) technology has proven to tolerate rate up to 50 MHz/cm2 without noticeable aging and to provide the required resolution on working chambers up to 33x33 cm2. The SBS GEM chambers have been designed in a modular way: each chamber consists of 3 adjacent GEM modules. Each GEM module has an active area of 40x50 cm2, which 2 represent the current standard double mask ...