22,186 resources related to Electric Fields
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2021 IEEE Photovoltaic Specialists Conference (PVSC)
Photovoltaic materials, devices, systems and related science and technology
2020 IEEE International Symposium on Antennas and Propagation and North American Radio Science Meeting
The joint meeting is intended to provide an international forum for the exchange of information on state of the art research in the area of antennas and propagation, electromagnetic engineering and radio science
Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies
Technical presentations will range from the fundamental physics of electron emission and modulated electron beams to the design and operation of devices at UHF to THz frequencies, theory and computational tool development, active and passive components, systems, and supporting technologies.System developers will find that IVEC provides a unique snapshot of the current state-of-the-art in vacuum electron devices. These devices continue to provide unmatched power and performance for advanced electromagnetic systems, particularly in the challenging frequency regimes of millimeter-wave and THz electronics.Plenary talks will provide insights into the history, the broad spectrum of fundamental physics, the scientific issues, and the technological applications driving the current directions in vacuum electronics research.
IEEE International Conference on Plasma Science (ICOPS) is an annual conference coordinated by the Plasma Science and Application Committee (PSAC) of the IEEE Nuclear & Plasma Sciences Society.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
Contains articles on the applications and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Power applications include magnet design as well asmotors, generators, and power transmission
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.
Video A/D and D/A, display technology, image analysis and processing, video signal characterization and representation, video compression techniques and signal processing, multidimensional filters and transforms, analog video signal processing, neural networks for video applications, nonlinear video signal processing, video storage and retrieval, computer vision, packet video, high-speed real-time circuits, VLSI architecture and implementation for video technology, multiprocessor systems--hardware and software-- ...
2010 IEEE International Conference on Information Theory and Information Security, 2010
Electric fields with double compensatory anticathode in the sea were formulated and simulated on the basis of one compensatory anticathode mathematical model and distribution of electric field was analyzed. Number position and current of compensatory anticathode were optimized base on evolutionary programming arithmetic; also electric fields compensated and uncompensated were compared. It shows that the electric fields around ship are ...
2016 33rd International Conference on Lightning Protection (ICLP), 2016
In this paper, the effect of insulator angle with respect to the cross arm on the electrical performance of a polymer insulator under lightning impulse voltage condition was studied and the results discussed accordingly. An insulator angle with the cross arm of other than 90° is usually due to defects in the connections or being under pressure from the line ...
2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe), 2017
The aim of this paper is to compute the electric fields of parallel high and extra high voltage transmission lines in Egyptian power network. Three parallel high and extra high voltage transmission lines are analysed and simulated. The first two lines are the same configurations with voltage of 220 kV, double circuit, two bundles. The third line is a flat ...
2011 International Conference on Electric Information and Control Engineering, 2011
To research the shaft-rate electric fields' distribution produced by ships' shaft wheeling, based on Maxwell equations theory, this paper deduced the electric fields formulas produced by vertical time-harmonic current immersed in shallow sea. With numerical method, the distribution of the electric fields and the correlation between the electric fields and the seabed conductance were analyzed. The results showed that the ...
IEEE Transactions on Applied Superconductivity, 2016
In this paper, the extended finite-element method (XFEM) is used for modeling weak discontinuities in electric fields. For a weak discontinuous domain, the first-order derivative of the electric potential is discontinuous although the electric potential, degree of freedom, is continuous. In order to improve the approximation space of the conventional finite element method (CFEM), the enrichment function of the key ...
International Electric Vehicle Conference 2012
The R&D History of On-Line Electric Vehicles (OLEV)
Magneto-electric Approximate Computation for Bayesian Inference - IEEE Rebooting Computing 2017
Electric Ship Technologies Symposium (Member Access)
APEC 2015: KeyTalks - More Electric Aircraft Challenges
Fuel Cell Powertrain for Hybrid Electric Vehicles for Postal Delivery
State-of-the-art Electrical Machines for Hybrid Electric Vehicles
A Decade of Electric/Hybrid Vehicles Design and Development at UTBM
Part 1: Transforming the Electric Utility Industry with a Smart Grid: IEEE TAB Speakers Bureau
Transportation Electrification: Zero Emission Electric Veichles
Defense Department's Crusher Field Demonstration
A Global Engineering Challenge
IEEE Milestone S&C Electric company
Magnetic Materials and Magnetic Devices - Josep Fontcuberta: IEEE Magnetics Distinguished Lecture 2016
Owning a Tesla, Going Electric - IEEE Southern Minnesota presentation
Neuropriming: What Are The Ethical Implications? - IEEE TechEthics Virtual Panel
Zero Emission Powertrains and Fuel Cell Engines: APEC 2019
Mario Milicevic - IEEE Theodore W. Hissey Outstanding Young Professional Award, 2019 IEEE Honors Ceremony
Superconductors for the Future from the Perspective of the Past
Electric fields with double compensatory anticathode in the sea were formulated and simulated on the basis of one compensatory anticathode mathematical model and distribution of electric field was analyzed. Number position and current of compensatory anticathode were optimized base on evolutionary programming arithmetic; also electric fields compensated and uncompensated were compared. It shows that the electric fields around ship are reduced obviously by optimizing and the validity of the optimization method based on evolutionary programming arithmetic.
In this paper, the effect of insulator angle with respect to the cross arm on the electrical performance of a polymer insulator under lightning impulse voltage condition was studied and the results discussed accordingly. An insulator angle with the cross arm of other than 90° is usually due to defects in the connections or being under pressure from the line angles and it can be an important issue for the stability of the line against lightning. The results show that the insulator angle can play an important role in increasing the electric fields around insulator and thus increase the chance of electrical breakdown of the insulator.
The aim of this paper is to compute the electric fields of parallel high and extra high voltage transmission lines in Egyptian power network. Three parallel high and extra high voltage transmission lines are analysed and simulated. The first two lines are the same configurations with voltage of 220 kV, double circuit, two bundles. The third line is a flat configuration, 500 kV, three bundles, and single circuit. The charge simulation technique (CST) is used to calculate the electric field at ground level for these lines. The maximum electric field of the three lines is affected by modifying the phase sequence for each line and the spacings between them. The effect of changing the lines phase sequence on the spatial distribution of the electric field is also studied. The effect of taking one on sub-circuit or line of is out of service is also studied.
To research the shaft-rate electric fields' distribution produced by ships' shaft wheeling, based on Maxwell equations theory, this paper deduced the electric fields formulas produced by vertical time-harmonic current immersed in shallow sea. With numerical method, the distribution of the electric fields and the correlation between the electric fields and the seabed conductance were analyzed. The results showed that the seabed conductance influenced the field intensity obviously. The smaller the seabed conductance, the bigger the horizontal parts of the electric fields and the smaller the vertical part. In the end, the practicalities and validities of this paper were proved through contrasting the calculation results with the experimental data.
In this paper, the extended finite-element method (XFEM) is used for modeling weak discontinuities in electric fields. For a weak discontinuous domain, the first-order derivative of the electric potential is discontinuous although the electric potential, degree of freedom, is continuous. In order to improve the approximation space of the conventional finite element method (CFEM), the enrichment function of the key of XFEM is used to model weak discontinuous solutions independent of the mesh. Interfaces among different materials can be described well by using the level set method. Numerical examples applied to the parallel plate electrodes in 1-D and the insulating oil with a bubble in 2-D static electric field involving error analysis, computational time, and electric field computations are provided to demonstrate the utility of XFEM in electric fields.
Nonfiltered rectifiers and pulsed power supplies are often used for the energization of the high-voltage electrodes in various electrostatic installations. The aim of this paper is to investigate the ionic charging of insulating particles in the pulsatory electric fields specific to such applications. In a first set of numerical simulations, the space charge was considered constant in time, which means that the ion generation is not related to the voltage drop between the electrodes. A second set of simulations was carried out using the assumption that the space charge is generated by the pulsed corona from one of the electrodes. The computed results, which were found in good agreement with the experimental data, show that the amount of charge acquired by a particle depends on the following factors: (1) particle transit time through the electric field zone; (2) space charge density; and (3) ratio between the corona onset voltage and the amplitude of the variable voltage applied to the electrodes. These factors are discussed in correlation with the operating parameters of roll-type corona- electrostatic separators, but the conclusions are valid for a wider group of industry applications.
The pulsed power technology is gaining ground on applications to biological field such as sterilization with pulse electric fields or discharges and induction of the apoptosis with pulse electric fields. Under the circumstances, the pulse electric fields clearly have some influence on organism. To figure out the influence and mechanism, we conducted an experiment. The pulse electric fields were applied to the pathogenic bacteria, and manifestation of RNAs which affected pathogenicity was examined. A system was developed to apply the pulsed electric fields to bacteria. The pulsed power generator, which consists of a Blumlein-type pulse forming network (B-PFN), outputs pulses with width of 100 ns in the case of 5 L-C stages. The electrodes chamber was filled with the solution (2 ml) with bacteria. The separation of the electrodes was 5 mm and approximately uniform electric field was applied to the solution. The manifestation of RNAs was analyzed with the method of polymerase chain reaction, PCR Vibrio parahaemolyticus (RIMD 2210633) was selected to examine. The manifestations of RNAs as VP1699, VP1680, VPA1321, VPA1327, VPA1346, TDH, and RNA16S were examined with the PCR method. Although RNA16S does not become an index for pathogenicity, evaluation of RNA16S implies a survival ratio of the bacteria. The initial density of bacteria solution was regulated to be 109 /ml. The peak voltage was approximately 6, 12 kV and the number of applied pulses was 1000 for each sample. The tendency of increase in manifestation was found by the application of pulse electric fields for VP1699 and VP1680 with relation of TTSS(1).
The insulating liquid used in a large power transformer is typically subjected to uniform or quasi-uniform electric fields, however, the majority of the research concerning partial discharge (PD) characteristics of dielectric liquids employs electrode systems generating highly divergent electric fields so as to facilitate PD inception. This research aims to investigate the PD inception voltage (PDIV) of an inhibited mineral oil under divergent and quasi-uniform a.c. electric fields. In the experiments a plane-to-plane electrode system with an adjustable needle protrusion was used to produce quasi-uniform electric fields. To obtain the PD inception fields (PDIF) under different configurations at the corresponding PDIVs, electrode system models were developed in COMSOL software to simulate the electric field distribution. Results from different electrode configurations suggest that the PDIV of the mineral oil is affected by electrode configuration. But unlike PDIV, the PDIF tends to be independent of electrode configuration. The simulated PDIF of the mineral oil is 1426.4 kV/mm.
Equatorial satellites can measure key drivers of the low-latitude ionosphere globally and frequently. The electric field and plasma drift instruments of the Communications and Navigation Outage System satellite will provide redundant observations of the most important driver of low-latitude ionosphere structure, that is, the zonal electric field and resulting E x B plasma drift. The electric field data from the San Marco D satellite have been reduced to E x B plasma drift equivalents and are used to, first, examine data ingestion into an ionosphere model for weather sensitive specifications of the ionosphere and, second, explore use of the mesoscale (<1000 km) features in the E x B plasma drift to forecast the spatial mapping of signal scintillation associated with equatorial spread F in the postsunset ionosphere. The ingestion of the global-scale, satellite-based plasma drift observations into an ionosphere model improves electron density specifications over climatology when results are compared with the satellite in situ electron density measurements. Examination of the presunset and postsunset passes of the San Marco D satellite over a specific longitude sector suggests that the mesoscale structure in the zonal electric field can be used to predict the position and spacing of large plasma plumes associated with equatorial spread F in the postsunset ionosphere. A presunset forecast of the postsunset spatial location of plasma plumes can be used to spatially refine forecast maps of signal scintillation.
We propose a novel tool to perform electrodynamics-molecular dynamics and electrodynamics-kinetic Monte Carlo simulations. The tool generates finite elements in- and outside the atomistic domain, uses them to solve a system of linear differential equations and offers the interface to output the results into atomistic simulations. The tool shows high tolerance against crystallographic orientation in the material and robustness against dynamic atomistic processes there.
This standard provides methods for determining antenna factors of antennas used for radiated emission measurements of electromagnetic interference (EMI) from 9 kHz to 40 GHz. Antennas included are linearly polarized antennas, such as loops, rods (monopoles), tuned dipoles, biconical dipoles, log-periodic dipole arrays, hybrid linearly polarized arrays, broadband horns, etc., that are used in measurements governed by ANSI C63.4-2003.1 The ...
This guide applies to low-voltage ac power circuit breakers of the 635 V maximum voltage class with separately-mounted current-limiting fuses for use on ac circuits with available short-circuit currents of 200 000 A (rms symmetrical) or less. Low-voltage ac fused power circuit breakers and combinations of fuses and molded-case circuit breakers are not covered by this guide. This guide sets ...
This project is a revision of the existing guide for measurements of environmental sensitivities of standard frequency generators. It includes effects and metrology of acceleration; temperature, humidity, and pressure; electrical and magnetic fields; ionizing and particle radiation; and aging, warm-up time and retrace.
Berkeley Lab’s Facilities Division